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>
26 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type);
27 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
32 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
37 /* the netlink family */
38 static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
49 /* returns ERR_PTR values */
50 static struct wireless_dev *
51 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
53 struct cfg80211_registered_device *rdev;
54 struct wireless_dev *result = NULL;
55 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
56 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
61 assert_cfg80211_lock();
63 if (!have_ifidx && !have_wdev_id)
64 return ERR_PTR(-EINVAL);
67 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
70 wiphy_idx = wdev_id >> 32;
73 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
74 struct wireless_dev *wdev;
76 if (wiphy_net(&rdev->wiphy) != netns)
79 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
82 mutex_lock(&rdev->devlist_mtx);
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
94 mutex_unlock(&rdev->devlist_mtx);
102 return ERR_PTR(-ENODEV);
105 static struct cfg80211_registered_device *
106 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
108 struct cfg80211_registered_device *rdev = NULL, *tmp;
109 struct net_device *netdev;
111 assert_cfg80211_lock();
113 if (!attrs[NL80211_ATTR_WIPHY] &&
114 !attrs[NL80211_ATTR_IFINDEX] &&
115 !attrs[NL80211_ATTR_WDEV])
116 return ERR_PTR(-EINVAL);
118 if (attrs[NL80211_ATTR_WIPHY])
119 rdev = cfg80211_rdev_by_wiphy_idx(
120 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
122 if (attrs[NL80211_ATTR_WDEV]) {
123 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
124 struct wireless_dev *wdev;
127 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
129 /* make sure wdev exists */
130 mutex_lock(&tmp->devlist_mtx);
131 list_for_each_entry(wdev, &tmp->wdev_list, list) {
132 if (wdev->identifier != (u32)wdev_id)
137 mutex_unlock(&tmp->devlist_mtx);
142 if (rdev && tmp != rdev)
143 return ERR_PTR(-EINVAL);
148 if (attrs[NL80211_ATTR_IFINDEX]) {
149 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
150 netdev = dev_get_by_index(netns, ifindex);
152 if (netdev->ieee80211_ptr)
154 netdev->ieee80211_ptr->wiphy);
160 /* not wireless device -- return error */
162 return ERR_PTR(-EINVAL);
164 /* mismatch -- return error */
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
173 return ERR_PTR(-ENODEV);
175 if (netns != wiphy_net(&rdev->wiphy))
176 return ERR_PTR(-ENODEV);
182 * This function returns a pointer to the driver
183 * that the genl_info item that is passed refers to.
184 * If successful, it returns non-NULL and also locks
185 * the driver's mutex!
187 * This means that you need to call cfg80211_unlock_rdev()
188 * before being allowed to acquire &cfg80211_mutex!
190 * This is necessary because we need to lock the global
191 * mutex to get an item off the list safely, and then
192 * we lock the rdev mutex so it doesn't go away under us.
194 * We don't want to keep cfg80211_mutex locked
195 * for all the time in order to allow requests on
196 * other interfaces to go through at the same time.
198 * The result of this can be a PTR_ERR and hence must
199 * be checked with IS_ERR() for errors.
201 static struct cfg80211_registered_device *
202 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
204 struct cfg80211_registered_device *rdev;
206 mutex_lock(&cfg80211_mutex);
207 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
209 /* if it is not an error we grab the lock on
210 * it to assure it won't be going away while
211 * we operate on it */
213 mutex_lock(&rdev->mtx);
215 mutex_unlock(&cfg80211_mutex);
220 /* policy for the attributes */
221 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
222 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
225 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
226 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
230 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
231 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
232 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
234 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
236 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
238 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
239 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
241 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
242 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
243 .len = WLAN_MAX_KEY_LEN },
244 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
245 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
246 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
247 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
248 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
251 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
252 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
254 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
255 .len = IEEE80211_MAX_DATA_LEN },
256 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
258 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
259 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
260 .len = NL80211_MAX_SUPP_RATES },
261 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
262 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
263 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
264 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
265 .len = IEEE80211_MAX_MESH_ID_LEN },
266 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
268 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
269 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
271 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
273 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
274 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
275 .len = NL80211_MAX_SUPP_RATES },
276 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
278 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
279 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
281 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
283 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
284 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_DATA_LEN },
286 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
287 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
289 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_SSID_LEN },
291 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
292 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
293 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
294 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
295 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
296 [NL80211_ATTR_STA_FLAGS2] = {
297 .len = sizeof(struct nl80211_sta_flag_update),
299 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
301 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
302 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
303 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
304 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
305 [NL80211_ATTR_PID] = { .type = NLA_U32 },
306 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
307 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
308 .len = WLAN_PMKID_LEN },
309 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
310 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
311 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
312 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
313 .len = IEEE80211_MAX_DATA_LEN },
314 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
315 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
316 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
317 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
318 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
319 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
321 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
322 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
323 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
324 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
325 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
326 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
327 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
328 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
329 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
330 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
331 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
332 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
333 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
335 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
336 .len = IEEE80211_MAX_DATA_LEN },
337 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
338 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
339 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
340 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
343 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
344 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
360 /* policy for the key attributes */
361 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
362 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
363 [NL80211_KEY_IDX] = { .type = NLA_U8 },
364 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
365 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
366 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
367 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
368 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
369 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
372 /* policy for the key default flags */
373 static const struct nla_policy
374 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
375 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
376 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
379 /* policy for WoWLAN attributes */
380 static const struct nla_policy
381 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
382 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
384 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
385 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
386 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
388 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
389 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
392 /* policy for GTK rekey offload attributes */
393 static const struct nla_policy
394 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
395 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
396 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
397 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
400 static const struct nla_policy
401 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
402 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
403 .len = IEEE80211_MAX_SSID_LEN },
404 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
407 /* ifidx get helper */
408 static int nl80211_get_ifidx(struct netlink_callback *cb)
412 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
413 nl80211_fam.attrbuf, nl80211_fam.maxattr,
418 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
421 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
427 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
428 struct netlink_callback *cb,
429 struct cfg80211_registered_device **rdev,
430 struct net_device **dev)
432 int ifidx = cb->args[0];
436 ifidx = nl80211_get_ifidx(cb);
444 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
450 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
452 err = PTR_ERR(*rdev);
462 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
464 cfg80211_unlock_rdev(rdev);
469 static bool is_valid_ie_attr(const struct nlattr *attr)
477 pos = nla_data(attr);
498 /* message building helper */
499 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
502 /* since there is no private header just add the generic one */
503 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
506 static int nl80211_msg_put_channel(struct sk_buff *msg,
507 struct ieee80211_channel *chan)
509 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
511 goto nla_put_failure;
513 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
514 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
515 goto nla_put_failure;
516 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
517 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
518 goto nla_put_failure;
519 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
520 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
521 goto nla_put_failure;
522 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
523 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
524 goto nla_put_failure;
526 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
527 DBM_TO_MBM(chan->max_power)))
528 goto nla_put_failure;
536 /* netlink command implementations */
543 bool def_uni, def_multi;
546 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
548 struct nlattr *tb[NL80211_KEY_MAX + 1];
549 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
554 k->def = !!tb[NL80211_KEY_DEFAULT];
555 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
564 if (tb[NL80211_KEY_IDX])
565 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
567 if (tb[NL80211_KEY_DATA]) {
568 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
569 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
572 if (tb[NL80211_KEY_SEQ]) {
573 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
574 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
577 if (tb[NL80211_KEY_CIPHER])
578 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
580 if (tb[NL80211_KEY_TYPE]) {
581 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
582 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
586 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
587 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
588 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
589 tb[NL80211_KEY_DEFAULT_TYPES],
590 nl80211_key_default_policy);
594 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
595 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
601 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
603 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
604 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
605 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
608 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
609 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
610 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
613 if (info->attrs[NL80211_ATTR_KEY_IDX])
614 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
616 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
617 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
619 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
620 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
629 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
630 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
631 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
635 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
636 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
637 int err = nla_parse_nested(
638 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
639 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
640 nl80211_key_default_policy);
644 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
645 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
651 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
655 memset(k, 0, sizeof(*k));
659 if (info->attrs[NL80211_ATTR_KEY])
660 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
662 err = nl80211_parse_key_old(info, k);
667 if (k->def && k->defmgmt)
671 if (k->def_uni || !k->def_multi)
677 if (k->idx < 4 || k->idx > 5)
680 if (k->idx < 0 || k->idx > 3)
683 if (k->idx < 0 || k->idx > 5)
691 static struct cfg80211_cached_keys *
692 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
695 struct key_parse parse;
697 struct cfg80211_cached_keys *result;
698 int rem, err, def = 0;
700 result = kzalloc(sizeof(*result), GFP_KERNEL);
702 return ERR_PTR(-ENOMEM);
705 result->defmgmt = -1;
707 nla_for_each_nested(key, keys, rem) {
708 memset(&parse, 0, sizeof(parse));
711 err = nl80211_parse_key_new(key, &parse);
717 if (parse.idx < 0 || parse.idx > 4)
723 result->def = parse.idx;
724 if (!parse.def_uni || !parse.def_multi)
726 } else if (parse.defmgmt)
728 err = cfg80211_validate_key_settings(rdev, &parse.p,
729 parse.idx, false, NULL);
732 result->params[parse.idx].cipher = parse.p.cipher;
733 result->params[parse.idx].key_len = parse.p.key_len;
734 result->params[parse.idx].key = result->data[parse.idx];
735 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
744 static int nl80211_key_allowed(struct wireless_dev *wdev)
746 ASSERT_WDEV_LOCK(wdev);
748 switch (wdev->iftype) {
749 case NL80211_IFTYPE_AP:
750 case NL80211_IFTYPE_AP_VLAN:
751 case NL80211_IFTYPE_P2P_GO:
752 case NL80211_IFTYPE_MESH_POINT:
754 case NL80211_IFTYPE_ADHOC:
755 if (!wdev->current_bss)
758 case NL80211_IFTYPE_STATION:
759 case NL80211_IFTYPE_P2P_CLIENT:
760 if (wdev->sme_state != CFG80211_SME_CONNECTED)
770 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
772 struct nlattr *nl_modes = nla_nest_start(msg, attr);
776 goto nla_put_failure;
780 if ((ifmodes & 1) && nla_put_flag(msg, i))
781 goto nla_put_failure;
786 nla_nest_end(msg, nl_modes);
793 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
796 struct nlattr *nl_combis;
799 nl_combis = nla_nest_start(msg,
800 NL80211_ATTR_INTERFACE_COMBINATIONS);
802 goto nla_put_failure;
804 for (i = 0; i < wiphy->n_iface_combinations; i++) {
805 const struct ieee80211_iface_combination *c;
806 struct nlattr *nl_combi, *nl_limits;
808 c = &wiphy->iface_combinations[i];
810 nl_combi = nla_nest_start(msg, i + 1);
812 goto nla_put_failure;
814 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
816 goto nla_put_failure;
818 for (j = 0; j < c->n_limits; j++) {
819 struct nlattr *nl_limit;
821 nl_limit = nla_nest_start(msg, j + 1);
823 goto nla_put_failure;
824 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
826 goto nla_put_failure;
827 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
829 goto nla_put_failure;
830 nla_nest_end(msg, nl_limit);
833 nla_nest_end(msg, nl_limits);
835 if (c->beacon_int_infra_match &&
836 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
837 goto nla_put_failure;
838 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
839 c->num_different_channels) ||
840 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
842 goto nla_put_failure;
844 nla_nest_end(msg, nl_combi);
847 nla_nest_end(msg, nl_combis);
854 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
855 struct cfg80211_registered_device *dev)
858 struct nlattr *nl_bands, *nl_band;
859 struct nlattr *nl_freqs, *nl_freq;
860 struct nlattr *nl_rates, *nl_rate;
861 struct nlattr *nl_cmds;
862 enum ieee80211_band band;
863 struct ieee80211_channel *chan;
864 struct ieee80211_rate *rate;
866 const struct ieee80211_txrx_stypes *mgmt_stypes =
867 dev->wiphy.mgmt_stypes;
869 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
873 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
874 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
875 nla_put_u32(msg, NL80211_ATTR_GENERATION,
876 cfg80211_rdev_list_generation) ||
877 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
878 dev->wiphy.retry_short) ||
879 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
880 dev->wiphy.retry_long) ||
881 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
882 dev->wiphy.frag_threshold) ||
883 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
884 dev->wiphy.rts_threshold) ||
885 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
886 dev->wiphy.coverage_class) ||
887 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
888 dev->wiphy.max_scan_ssids) ||
889 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
890 dev->wiphy.max_sched_scan_ssids) ||
891 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
892 dev->wiphy.max_scan_ie_len) ||
893 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
894 dev->wiphy.max_sched_scan_ie_len) ||
895 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
896 dev->wiphy.max_match_sets))
897 goto nla_put_failure;
899 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
900 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
901 goto nla_put_failure;
902 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
903 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
904 goto nla_put_failure;
905 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
906 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
907 goto nla_put_failure;
908 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
909 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
910 goto nla_put_failure;
911 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
912 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
913 goto nla_put_failure;
914 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
915 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
916 goto nla_put_failure;
918 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
919 sizeof(u32) * dev->wiphy.n_cipher_suites,
920 dev->wiphy.cipher_suites))
921 goto nla_put_failure;
923 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
924 dev->wiphy.max_num_pmkids))
925 goto nla_put_failure;
927 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
928 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
929 goto nla_put_failure;
931 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
932 dev->wiphy.available_antennas_tx) ||
933 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
934 dev->wiphy.available_antennas_rx))
935 goto nla_put_failure;
937 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
938 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
939 dev->wiphy.probe_resp_offload))
940 goto nla_put_failure;
942 if ((dev->wiphy.available_antennas_tx ||
943 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
944 u32 tx_ant = 0, rx_ant = 0;
946 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
948 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
950 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
952 goto nla_put_failure;
956 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
957 dev->wiphy.interface_modes))
958 goto nla_put_failure;
960 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
962 goto nla_put_failure;
964 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
965 if (!dev->wiphy.bands[band])
968 nl_band = nla_nest_start(msg, band);
970 goto nla_put_failure;
973 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
974 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
975 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
976 &dev->wiphy.bands[band]->ht_cap.mcs) ||
977 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
978 dev->wiphy.bands[band]->ht_cap.cap) ||
979 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
980 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
981 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
982 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
983 goto nla_put_failure;
986 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
987 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
988 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
989 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
990 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
991 dev->wiphy.bands[band]->vht_cap.cap)))
992 goto nla_put_failure;
994 /* add frequencies */
995 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
997 goto nla_put_failure;
999 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1000 nl_freq = nla_nest_start(msg, i);
1002 goto nla_put_failure;
1004 chan = &dev->wiphy.bands[band]->channels[i];
1006 if (nl80211_msg_put_channel(msg, chan))
1007 goto nla_put_failure;
1009 nla_nest_end(msg, nl_freq);
1012 nla_nest_end(msg, nl_freqs);
1015 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1017 goto nla_put_failure;
1019 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1020 nl_rate = nla_nest_start(msg, i);
1022 goto nla_put_failure;
1024 rate = &dev->wiphy.bands[band]->bitrates[i];
1025 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1027 goto nla_put_failure;
1028 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1030 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1031 goto nla_put_failure;
1033 nla_nest_end(msg, nl_rate);
1036 nla_nest_end(msg, nl_rates);
1038 nla_nest_end(msg, nl_band);
1040 nla_nest_end(msg, nl_bands);
1042 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1044 goto nla_put_failure;
1047 #define CMD(op, n) \
1049 if (dev->ops->op) { \
1051 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1052 goto nla_put_failure; \
1056 CMD(add_virtual_intf, NEW_INTERFACE);
1057 CMD(change_virtual_intf, SET_INTERFACE);
1058 CMD(add_key, NEW_KEY);
1059 CMD(start_ap, START_AP);
1060 CMD(add_station, NEW_STATION);
1061 CMD(add_mpath, NEW_MPATH);
1062 CMD(update_mesh_config, SET_MESH_CONFIG);
1063 CMD(change_bss, SET_BSS);
1064 CMD(auth, AUTHENTICATE);
1065 CMD(assoc, ASSOCIATE);
1066 CMD(deauth, DEAUTHENTICATE);
1067 CMD(disassoc, DISASSOCIATE);
1068 CMD(join_ibss, JOIN_IBSS);
1069 CMD(join_mesh, JOIN_MESH);
1070 CMD(set_pmksa, SET_PMKSA);
1071 CMD(del_pmksa, DEL_PMKSA);
1072 CMD(flush_pmksa, FLUSH_PMKSA);
1073 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1074 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1075 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1076 CMD(mgmt_tx, FRAME);
1077 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1078 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1080 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1081 goto nla_put_failure;
1083 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1084 dev->ops->join_mesh) {
1086 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1087 goto nla_put_failure;
1089 CMD(set_wds_peer, SET_WDS_PEER);
1090 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1091 CMD(tdls_mgmt, TDLS_MGMT);
1092 CMD(tdls_oper, TDLS_OPER);
1094 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1095 CMD(sched_scan_start, START_SCHED_SCAN);
1096 CMD(probe_client, PROBE_CLIENT);
1097 CMD(set_noack_map, SET_NOACK_MAP);
1098 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1100 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1101 goto nla_put_failure;
1103 CMD(start_p2p_device, START_P2P_DEVICE);
1105 #ifdef CONFIG_NL80211_TESTMODE
1106 CMD(testmode_cmd, TESTMODE);
1111 if (dev->ops->connect || dev->ops->auth) {
1113 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1114 goto nla_put_failure;
1117 if (dev->ops->disconnect || dev->ops->deauth) {
1119 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1120 goto nla_put_failure;
1123 nla_nest_end(msg, nl_cmds);
1125 if (dev->ops->remain_on_channel &&
1126 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1127 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1128 dev->wiphy.max_remain_on_channel_duration))
1129 goto nla_put_failure;
1131 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1132 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1133 goto nla_put_failure;
1137 struct nlattr *nl_ftypes, *nl_ifs;
1138 enum nl80211_iftype ift;
1140 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1142 goto nla_put_failure;
1144 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1145 nl_ftypes = nla_nest_start(msg, ift);
1147 goto nla_put_failure;
1149 stypes = mgmt_stypes[ift].tx;
1152 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1153 (i << 4) | IEEE80211_FTYPE_MGMT))
1154 goto nla_put_failure;
1158 nla_nest_end(msg, nl_ftypes);
1161 nla_nest_end(msg, nl_ifs);
1163 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1165 goto nla_put_failure;
1167 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1168 nl_ftypes = nla_nest_start(msg, ift);
1170 goto nla_put_failure;
1172 stypes = mgmt_stypes[ift].rx;
1175 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1176 (i << 4) | IEEE80211_FTYPE_MGMT))
1177 goto nla_put_failure;
1181 nla_nest_end(msg, nl_ftypes);
1183 nla_nest_end(msg, nl_ifs);
1187 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1188 struct nlattr *nl_wowlan;
1190 nl_wowlan = nla_nest_start(msg,
1191 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1193 goto nla_put_failure;
1195 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1196 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1197 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1198 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1199 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1200 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1201 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1202 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1203 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1204 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1205 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1206 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1207 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1208 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1209 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1210 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1211 goto nla_put_failure;
1212 if (dev->wiphy.wowlan.n_patterns) {
1213 struct nl80211_wowlan_pattern_support pat = {
1214 .max_patterns = dev->wiphy.wowlan.n_patterns,
1216 dev->wiphy.wowlan.pattern_min_len,
1218 dev->wiphy.wowlan.pattern_max_len,
1220 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1222 goto nla_put_failure;
1225 nla_nest_end(msg, nl_wowlan);
1229 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1230 dev->wiphy.software_iftypes))
1231 goto nla_put_failure;
1233 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1234 goto nla_put_failure;
1236 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1237 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1238 dev->wiphy.ap_sme_capa))
1239 goto nla_put_failure;
1241 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1242 dev->wiphy.features))
1243 goto nla_put_failure;
1245 if (dev->wiphy.ht_capa_mod_mask &&
1246 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1247 sizeof(*dev->wiphy.ht_capa_mod_mask),
1248 dev->wiphy.ht_capa_mod_mask))
1249 goto nla_put_failure;
1251 return genlmsg_end(msg, hdr);
1254 genlmsg_cancel(msg, hdr);
1258 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1261 int start = cb->args[0];
1262 struct cfg80211_registered_device *dev;
1264 mutex_lock(&cfg80211_mutex);
1265 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1266 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1270 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1271 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1277 mutex_unlock(&cfg80211_mutex);
1284 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1286 struct sk_buff *msg;
1287 struct cfg80211_registered_device *dev = info->user_ptr[0];
1289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1293 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1298 return genlmsg_reply(msg, info);
1301 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1302 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1303 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1304 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1305 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1306 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1309 static int parse_txq_params(struct nlattr *tb[],
1310 struct ieee80211_txq_params *txq_params)
1312 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1313 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1314 !tb[NL80211_TXQ_ATTR_AIFS])
1317 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1318 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1319 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1320 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1321 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1323 if (txq_params->ac >= NL80211_NUM_ACS)
1329 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1332 * You can only set the channel explicitly for WDS interfaces,
1333 * all others have their channel managed via their respective
1334 * "establish a connection" command (connect, join, ...)
1336 * For AP/GO and mesh mode, the channel can be set with the
1337 * channel userspace API, but is only stored and passed to the
1338 * low-level driver when the AP starts or the mesh is joined.
1339 * This is for backward compatibility, userspace can also give
1340 * the channel in the start-ap or join-mesh commands instead.
1342 * Monitors are special as they are normally slaved to
1343 * whatever else is going on, so they have their own special
1344 * operation to set the monitor channel if possible.
1347 wdev->iftype == NL80211_IFTYPE_AP ||
1348 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1349 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1350 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1353 static bool nl80211_valid_channel_type(struct genl_info *info,
1354 enum nl80211_channel_type *channel_type)
1356 enum nl80211_channel_type tmp;
1358 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1361 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1362 if (tmp != NL80211_CHAN_NO_HT &&
1363 tmp != NL80211_CHAN_HT20 &&
1364 tmp != NL80211_CHAN_HT40PLUS &&
1365 tmp != NL80211_CHAN_HT40MINUS)
1369 *channel_type = tmp;
1374 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1375 struct wireless_dev *wdev,
1376 struct genl_info *info)
1378 struct ieee80211_channel *channel;
1379 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1382 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1385 iftype = wdev->iftype;
1387 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1390 if (!nl80211_can_set_dev_channel(wdev))
1393 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1394 !nl80211_valid_channel_type(info, &channel_type))
1397 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1399 mutex_lock(&rdev->devlist_mtx);
1401 case NL80211_IFTYPE_AP:
1402 case NL80211_IFTYPE_P2P_GO:
1403 if (wdev->beacon_interval) {
1407 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1408 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1414 wdev->preset_chan = channel;
1415 wdev->preset_chantype = channel_type;
1418 case NL80211_IFTYPE_MESH_POINT:
1419 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1421 case NL80211_IFTYPE_MONITOR:
1422 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1427 mutex_unlock(&rdev->devlist_mtx);
1432 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1435 struct net_device *netdev = info->user_ptr[1];
1437 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1440 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1443 struct net_device *dev = info->user_ptr[1];
1444 struct wireless_dev *wdev = dev->ieee80211_ptr;
1447 if (!info->attrs[NL80211_ATTR_MAC])
1450 if (netif_running(dev))
1453 if (!rdev->ops->set_wds_peer)
1456 if (wdev->iftype != NL80211_IFTYPE_WDS)
1459 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1460 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1464 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1466 struct cfg80211_registered_device *rdev;
1467 struct net_device *netdev = NULL;
1468 struct wireless_dev *wdev;
1469 int result = 0, rem_txq_params = 0;
1470 struct nlattr *nl_txq_params;
1472 u8 retry_short = 0, retry_long = 0;
1473 u32 frag_threshold = 0, rts_threshold = 0;
1474 u8 coverage_class = 0;
1477 * Try to find the wiphy and netdev. Normally this
1478 * function shouldn't need the netdev, but this is
1479 * done for backward compatibility -- previously
1480 * setting the channel was done per wiphy, but now
1481 * it is per netdev. Previous userland like hostapd
1482 * also passed a netdev to set_wiphy, so that it is
1483 * possible to let that go to the right netdev!
1485 mutex_lock(&cfg80211_mutex);
1487 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1488 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1490 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1491 if (netdev && netdev->ieee80211_ptr) {
1492 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1493 mutex_lock(&rdev->mtx);
1499 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1502 mutex_unlock(&cfg80211_mutex);
1503 return PTR_ERR(rdev);
1509 mutex_lock(&rdev->mtx);
1510 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1511 wdev = netdev->ieee80211_ptr;
1516 * end workaround code, by now the rdev is available
1517 * and locked, and wdev may or may not be NULL.
1520 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1521 result = cfg80211_dev_rename(
1522 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1524 mutex_unlock(&cfg80211_mutex);
1529 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1530 struct ieee80211_txq_params txq_params;
1531 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1533 if (!rdev->ops->set_txq_params) {
1534 result = -EOPNOTSUPP;
1543 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1544 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1549 if (!netif_running(netdev)) {
1554 nla_for_each_nested(nl_txq_params,
1555 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1557 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1558 nla_data(nl_txq_params),
1559 nla_len(nl_txq_params),
1561 result = parse_txq_params(tb, &txq_params);
1565 result = rdev->ops->set_txq_params(&rdev->wiphy,
1573 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1574 result = __nl80211_set_channel(rdev, wdev, info);
1579 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1580 enum nl80211_tx_power_setting type;
1583 if (!rdev->ops->set_tx_power) {
1584 result = -EOPNOTSUPP;
1588 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1589 type = nla_get_u32(info->attrs[idx]);
1591 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1592 (type != NL80211_TX_POWER_AUTOMATIC)) {
1597 if (type != NL80211_TX_POWER_AUTOMATIC) {
1598 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1599 mbm = nla_get_u32(info->attrs[idx]);
1602 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1607 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1608 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1610 if ((!rdev->wiphy.available_antennas_tx &&
1611 !rdev->wiphy.available_antennas_rx) ||
1612 !rdev->ops->set_antenna) {
1613 result = -EOPNOTSUPP;
1617 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1618 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1620 /* reject antenna configurations which don't match the
1621 * available antenna masks, except for the "all" mask */
1622 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1623 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1628 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1629 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1631 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1638 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1639 retry_short = nla_get_u8(
1640 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1641 if (retry_short == 0) {
1645 changed |= WIPHY_PARAM_RETRY_SHORT;
1648 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1649 retry_long = nla_get_u8(
1650 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1651 if (retry_long == 0) {
1655 changed |= WIPHY_PARAM_RETRY_LONG;
1658 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1659 frag_threshold = nla_get_u32(
1660 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1661 if (frag_threshold < 256) {
1665 if (frag_threshold != (u32) -1) {
1667 * Fragments (apart from the last one) are required to
1668 * have even length. Make the fragmentation code
1669 * simpler by stripping LSB should someone try to use
1670 * odd threshold value.
1672 frag_threshold &= ~0x1;
1674 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1677 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1678 rts_threshold = nla_get_u32(
1679 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1680 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1683 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1684 coverage_class = nla_get_u8(
1685 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1686 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1690 u8 old_retry_short, old_retry_long;
1691 u32 old_frag_threshold, old_rts_threshold;
1692 u8 old_coverage_class;
1694 if (!rdev->ops->set_wiphy_params) {
1695 result = -EOPNOTSUPP;
1699 old_retry_short = rdev->wiphy.retry_short;
1700 old_retry_long = rdev->wiphy.retry_long;
1701 old_frag_threshold = rdev->wiphy.frag_threshold;
1702 old_rts_threshold = rdev->wiphy.rts_threshold;
1703 old_coverage_class = rdev->wiphy.coverage_class;
1705 if (changed & WIPHY_PARAM_RETRY_SHORT)
1706 rdev->wiphy.retry_short = retry_short;
1707 if (changed & WIPHY_PARAM_RETRY_LONG)
1708 rdev->wiphy.retry_long = retry_long;
1709 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1710 rdev->wiphy.frag_threshold = frag_threshold;
1711 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1712 rdev->wiphy.rts_threshold = rts_threshold;
1713 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1714 rdev->wiphy.coverage_class = coverage_class;
1716 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1718 rdev->wiphy.retry_short = old_retry_short;
1719 rdev->wiphy.retry_long = old_retry_long;
1720 rdev->wiphy.frag_threshold = old_frag_threshold;
1721 rdev->wiphy.rts_threshold = old_rts_threshold;
1722 rdev->wiphy.coverage_class = old_coverage_class;
1727 mutex_unlock(&rdev->mtx);
1733 static inline u64 wdev_id(struct wireless_dev *wdev)
1735 return (u64)wdev->identifier |
1736 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1739 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1740 struct cfg80211_registered_device *rdev,
1741 struct wireless_dev *wdev)
1743 struct net_device *dev = wdev->netdev;
1746 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1751 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1752 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1753 goto nla_put_failure;
1755 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1756 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1757 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1758 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1759 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1760 rdev->devlist_generation ^
1761 (cfg80211_rdev_list_generation << 2)))
1762 goto nla_put_failure;
1764 if (rdev->ops->get_channel) {
1765 struct ieee80211_channel *chan;
1766 enum nl80211_channel_type channel_type;
1768 chan = rdev->ops->get_channel(&rdev->wiphy, wdev,
1771 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1772 chan->center_freq) ||
1773 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1775 goto nla_put_failure;
1778 return genlmsg_end(msg, hdr);
1781 genlmsg_cancel(msg, hdr);
1785 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1789 int wp_start = cb->args[0];
1790 int if_start = cb->args[1];
1791 struct cfg80211_registered_device *rdev;
1792 struct wireless_dev *wdev;
1794 mutex_lock(&cfg80211_mutex);
1795 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1796 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1798 if (wp_idx < wp_start) {
1804 mutex_lock(&rdev->devlist_mtx);
1805 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1806 if (if_idx < if_start) {
1810 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1811 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1813 mutex_unlock(&rdev->devlist_mtx);
1818 mutex_unlock(&rdev->devlist_mtx);
1823 mutex_unlock(&cfg80211_mutex);
1825 cb->args[0] = wp_idx;
1826 cb->args[1] = if_idx;
1831 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1833 struct sk_buff *msg;
1834 struct cfg80211_registered_device *dev = info->user_ptr[0];
1835 struct wireless_dev *wdev = info->user_ptr[1];
1837 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1841 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1847 return genlmsg_reply(msg, info);
1850 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1851 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1852 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1853 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1854 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1855 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1858 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1860 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1868 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1869 nla, mntr_flags_policy))
1872 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1874 *mntrflags |= (1<<flag);
1879 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1880 struct net_device *netdev, u8 use_4addr,
1881 enum nl80211_iftype iftype)
1884 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1890 case NL80211_IFTYPE_AP_VLAN:
1891 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1894 case NL80211_IFTYPE_STATION:
1895 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1905 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1908 struct vif_params params;
1910 enum nl80211_iftype otype, ntype;
1911 struct net_device *dev = info->user_ptr[1];
1912 u32 _flags, *flags = NULL;
1913 bool change = false;
1915 memset(¶ms, 0, sizeof(params));
1917 otype = ntype = dev->ieee80211_ptr->iftype;
1919 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1920 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1923 if (ntype > NL80211_IFTYPE_MAX)
1927 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1928 struct wireless_dev *wdev = dev->ieee80211_ptr;
1930 if (ntype != NL80211_IFTYPE_MESH_POINT)
1932 if (netif_running(dev))
1936 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1937 IEEE80211_MAX_MESH_ID_LEN);
1938 wdev->mesh_id_up_len =
1939 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1940 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1941 wdev->mesh_id_up_len);
1945 if (info->attrs[NL80211_ATTR_4ADDR]) {
1946 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1948 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1952 params.use_4addr = -1;
1955 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1956 if (ntype != NL80211_IFTYPE_MONITOR)
1958 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1968 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1972 if (!err && params.use_4addr != -1)
1973 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1978 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1980 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1981 struct vif_params params;
1982 struct wireless_dev *wdev;
1983 struct sk_buff *msg;
1985 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1988 memset(¶ms, 0, sizeof(params));
1990 if (!info->attrs[NL80211_ATTR_IFNAME])
1993 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1994 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1995 if (type > NL80211_IFTYPE_MAX)
1999 if (!rdev->ops->add_virtual_intf ||
2000 !(rdev->wiphy.interface_modes & (1 << type)))
2003 if (info->attrs[NL80211_ATTR_4ADDR]) {
2004 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2005 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2014 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2015 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2017 wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
2018 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2019 type, err ? NULL : &flags, ¶ms);
2022 return PTR_ERR(wdev);
2026 case NL80211_IFTYPE_MESH_POINT:
2027 if (!info->attrs[NL80211_ATTR_MESH_ID])
2030 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2031 IEEE80211_MAX_MESH_ID_LEN);
2032 wdev->mesh_id_up_len =
2033 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2034 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2035 wdev->mesh_id_up_len);
2038 case NL80211_IFTYPE_P2P_DEVICE:
2040 * P2P Device doesn't have a netdev, so doesn't go
2041 * through the netdev notifier and must be added here
2043 mutex_init(&wdev->mtx);
2044 INIT_LIST_HEAD(&wdev->event_list);
2045 spin_lock_init(&wdev->event_lock);
2046 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2047 spin_lock_init(&wdev->mgmt_registrations_lock);
2049 mutex_lock(&rdev->devlist_mtx);
2050 wdev->identifier = ++rdev->wdev_id;
2051 list_add_rcu(&wdev->list, &rdev->wdev_list);
2052 rdev->devlist_generation++;
2053 mutex_unlock(&rdev->devlist_mtx);
2059 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
2065 return genlmsg_reply(msg, info);
2068 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2071 struct wireless_dev *wdev = info->user_ptr[1];
2073 if (!rdev->ops->del_virtual_intf)
2077 * If we remove a wireless device without a netdev then clear
2078 * user_ptr[1] so that nl80211_post_doit won't dereference it
2079 * to check if it needs to do dev_put(). Otherwise it crashes
2080 * since the wdev has been freed, unlike with a netdev where
2081 * we need the dev_put() for the netdev to really be freed.
2084 info->user_ptr[1] = NULL;
2086 return rdev->ops->del_virtual_intf(&rdev->wiphy, wdev);
2089 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2092 struct net_device *dev = info->user_ptr[1];
2095 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2098 if (!rdev->ops->set_noack_map)
2101 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2103 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2106 struct get_key_cookie {
2107 struct sk_buff *msg;
2112 static void get_key_callback(void *c, struct key_params *params)
2115 struct get_key_cookie *cookie = c;
2118 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2119 params->key_len, params->key)) ||
2121 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2122 params->seq_len, params->seq)) ||
2124 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2126 goto nla_put_failure;
2128 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2130 goto nla_put_failure;
2133 nla_put(cookie->msg, NL80211_KEY_DATA,
2134 params->key_len, params->key)) ||
2136 nla_put(cookie->msg, NL80211_KEY_SEQ,
2137 params->seq_len, params->seq)) ||
2139 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2141 goto nla_put_failure;
2143 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2144 goto nla_put_failure;
2146 nla_nest_end(cookie->msg, key);
2153 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2157 struct net_device *dev = info->user_ptr[1];
2159 const u8 *mac_addr = NULL;
2161 struct get_key_cookie cookie = {
2165 struct sk_buff *msg;
2167 if (info->attrs[NL80211_ATTR_KEY_IDX])
2168 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2173 if (info->attrs[NL80211_ATTR_MAC])
2174 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2176 pairwise = !!mac_addr;
2177 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2178 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2179 if (kt >= NUM_NL80211_KEYTYPES)
2181 if (kt != NL80211_KEYTYPE_GROUP &&
2182 kt != NL80211_KEYTYPE_PAIRWISE)
2184 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2187 if (!rdev->ops->get_key)
2190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2194 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2195 NL80211_CMD_NEW_KEY);
2197 return PTR_ERR(hdr);
2200 cookie.idx = key_idx;
2202 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2203 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2204 goto nla_put_failure;
2206 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2207 goto nla_put_failure;
2209 if (pairwise && mac_addr &&
2210 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2213 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2214 mac_addr, &cookie, get_key_callback);
2220 goto nla_put_failure;
2222 genlmsg_end(msg, hdr);
2223 return genlmsg_reply(msg, info);
2232 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2234 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2235 struct key_parse key;
2237 struct net_device *dev = info->user_ptr[1];
2239 err = nl80211_parse_key(info, &key);
2246 /* only support setting default key */
2247 if (!key.def && !key.defmgmt)
2250 wdev_lock(dev->ieee80211_ptr);
2253 if (!rdev->ops->set_default_key) {
2258 err = nl80211_key_allowed(dev->ieee80211_ptr);
2262 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2263 key.def_uni, key.def_multi);
2268 #ifdef CONFIG_CFG80211_WEXT
2269 dev->ieee80211_ptr->wext.default_key = key.idx;
2272 if (key.def_uni || !key.def_multi) {
2277 if (!rdev->ops->set_default_mgmt_key) {
2282 err = nl80211_key_allowed(dev->ieee80211_ptr);
2286 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2291 #ifdef CONFIG_CFG80211_WEXT
2292 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2297 wdev_unlock(dev->ieee80211_ptr);
2302 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2306 struct net_device *dev = info->user_ptr[1];
2307 struct key_parse key;
2308 const u8 *mac_addr = NULL;
2310 err = nl80211_parse_key(info, &key);
2317 if (info->attrs[NL80211_ATTR_MAC])
2318 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2320 if (key.type == -1) {
2322 key.type = NL80211_KEYTYPE_PAIRWISE;
2324 key.type = NL80211_KEYTYPE_GROUP;
2328 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2329 key.type != NL80211_KEYTYPE_GROUP)
2332 if (!rdev->ops->add_key)
2335 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2336 key.type == NL80211_KEYTYPE_PAIRWISE,
2340 wdev_lock(dev->ieee80211_ptr);
2341 err = nl80211_key_allowed(dev->ieee80211_ptr);
2343 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2344 key.type == NL80211_KEYTYPE_PAIRWISE,
2346 wdev_unlock(dev->ieee80211_ptr);
2351 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2355 struct net_device *dev = info->user_ptr[1];
2356 u8 *mac_addr = NULL;
2357 struct key_parse key;
2359 err = nl80211_parse_key(info, &key);
2363 if (info->attrs[NL80211_ATTR_MAC])
2364 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2366 if (key.type == -1) {
2368 key.type = NL80211_KEYTYPE_PAIRWISE;
2370 key.type = NL80211_KEYTYPE_GROUP;
2374 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2375 key.type != NL80211_KEYTYPE_GROUP)
2378 if (!rdev->ops->del_key)
2381 wdev_lock(dev->ieee80211_ptr);
2382 err = nl80211_key_allowed(dev->ieee80211_ptr);
2384 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2385 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2389 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2390 key.type == NL80211_KEYTYPE_PAIRWISE,
2393 #ifdef CONFIG_CFG80211_WEXT
2395 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2396 dev->ieee80211_ptr->wext.default_key = -1;
2397 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2398 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2401 wdev_unlock(dev->ieee80211_ptr);
2406 static int nl80211_parse_beacon(struct genl_info *info,
2407 struct cfg80211_beacon_data *bcn)
2409 bool haveinfo = false;
2411 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2412 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2413 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2414 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2417 memset(bcn, 0, sizeof(*bcn));
2419 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2420 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2421 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2427 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2428 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2430 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2437 if (info->attrs[NL80211_ATTR_IE]) {
2438 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2439 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2442 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2443 bcn->proberesp_ies =
2444 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2445 bcn->proberesp_ies_len =
2446 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2449 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2450 bcn->assocresp_ies =
2451 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2452 bcn->assocresp_ies_len =
2453 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2456 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2458 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2459 bcn->probe_resp_len =
2460 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2466 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2467 struct cfg80211_ap_settings *params)
2469 struct wireless_dev *wdev;
2472 mutex_lock(&rdev->devlist_mtx);
2474 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2475 if (wdev->iftype != NL80211_IFTYPE_AP &&
2476 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2479 if (!wdev->preset_chan)
2482 params->channel = wdev->preset_chan;
2483 params->channel_type = wdev->preset_chantype;
2488 mutex_unlock(&rdev->devlist_mtx);
2493 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2496 struct net_device *dev = info->user_ptr[1];
2497 struct wireless_dev *wdev = dev->ieee80211_ptr;
2498 struct cfg80211_ap_settings params;
2501 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2502 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2505 if (!rdev->ops->start_ap)
2508 if (wdev->beacon_interval)
2511 memset(¶ms, 0, sizeof(params));
2513 /* these are required for START_AP */
2514 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2515 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2516 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2519 err = nl80211_parse_beacon(info, ¶ms.beacon);
2523 params.beacon_interval =
2524 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2525 params.dtim_period =
2526 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2528 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2533 * In theory, some of these attributes should be required here
2534 * but since they were not used when the command was originally
2535 * added, keep them optional for old user space programs to let
2536 * them continue to work with drivers that do not need the
2537 * additional information -- drivers must check!
2539 if (info->attrs[NL80211_ATTR_SSID]) {
2540 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2542 nla_len(info->attrs[NL80211_ATTR_SSID]);
2543 if (params.ssid_len == 0 ||
2544 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2548 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2549 params.hidden_ssid = nla_get_u32(
2550 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2551 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2552 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2553 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2557 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2559 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2560 params.auth_type = nla_get_u32(
2561 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2562 if (!nl80211_valid_auth_type(params.auth_type))
2565 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2567 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2568 NL80211_MAX_NR_CIPHER_SUITES);
2572 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2573 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2575 params.inactivity_timeout = nla_get_u16(
2576 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2579 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2580 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2582 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2583 !nl80211_valid_channel_type(info, &channel_type))
2586 params.channel = rdev_freq_to_chan(rdev,
2587 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2589 if (!params.channel)
2591 params.channel_type = channel_type;
2592 } else if (wdev->preset_chan) {
2593 params.channel = wdev->preset_chan;
2594 params.channel_type = wdev->preset_chantype;
2595 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2598 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2599 params.channel_type))
2602 mutex_lock(&rdev->devlist_mtx);
2603 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2605 mutex_unlock(&rdev->devlist_mtx);
2610 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2612 wdev->preset_chan = params.channel;
2613 wdev->preset_chantype = params.channel_type;
2614 wdev->beacon_interval = params.beacon_interval;
2615 wdev->channel = params.channel;
2620 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2623 struct net_device *dev = info->user_ptr[1];
2624 struct wireless_dev *wdev = dev->ieee80211_ptr;
2625 struct cfg80211_beacon_data params;
2628 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2629 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2632 if (!rdev->ops->change_beacon)
2635 if (!wdev->beacon_interval)
2638 err = nl80211_parse_beacon(info, ¶ms);
2642 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2645 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2648 struct net_device *dev = info->user_ptr[1];
2650 return cfg80211_stop_ap(rdev, dev);
2653 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2654 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2655 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2656 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2657 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2658 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2659 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2662 static int parse_station_flags(struct genl_info *info,
2663 enum nl80211_iftype iftype,
2664 struct station_parameters *params)
2666 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2671 * Try parsing the new attribute first so userspace
2672 * can specify both for older kernels.
2674 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2676 struct nl80211_sta_flag_update *sta_flags;
2678 sta_flags = nla_data(nla);
2679 params->sta_flags_mask = sta_flags->mask;
2680 params->sta_flags_set = sta_flags->set;
2681 if ((params->sta_flags_mask |
2682 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2687 /* if present, parse the old attribute */
2689 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2693 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2694 nla, sta_flags_policy))
2698 * Only allow certain flags for interface types so that
2699 * other attributes are silently ignored. Remember that
2700 * this is backward compatibility code with old userspace
2701 * and shouldn't be hit in other cases anyway.
2704 case NL80211_IFTYPE_AP:
2705 case NL80211_IFTYPE_AP_VLAN:
2706 case NL80211_IFTYPE_P2P_GO:
2707 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2708 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2709 BIT(NL80211_STA_FLAG_WME) |
2710 BIT(NL80211_STA_FLAG_MFP);
2712 case NL80211_IFTYPE_P2P_CLIENT:
2713 case NL80211_IFTYPE_STATION:
2714 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2715 BIT(NL80211_STA_FLAG_TDLS_PEER);
2717 case NL80211_IFTYPE_MESH_POINT:
2718 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2719 BIT(NL80211_STA_FLAG_MFP) |
2720 BIT(NL80211_STA_FLAG_AUTHORIZED);
2725 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2727 params->sta_flags_set |= (1<<flag);
2729 /* no longer support new API additions in old API */
2730 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2738 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2741 struct nlattr *rate;
2745 rate = nla_nest_start(msg, attr);
2747 goto nla_put_failure;
2749 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2750 bitrate = cfg80211_calculate_bitrate(info);
2751 /* report 16-bit bitrate only if we can */
2752 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2754 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2755 (bitrate_compat > 0 &&
2756 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
2757 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2758 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2759 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2760 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2761 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2762 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2763 goto nla_put_failure;
2765 nla_nest_end(msg, rate);
2772 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2774 struct cfg80211_registered_device *rdev,
2775 struct net_device *dev,
2776 const u8 *mac_addr, struct station_info *sinfo)
2779 struct nlattr *sinfoattr, *bss_param;
2781 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2785 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2786 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2787 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2788 goto nla_put_failure;
2790 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2792 goto nla_put_failure;
2793 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2794 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2795 sinfo->connected_time))
2796 goto nla_put_failure;
2797 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2798 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2799 sinfo->inactive_time))
2800 goto nla_put_failure;
2801 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2802 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2804 goto nla_put_failure;
2805 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2806 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2808 goto nla_put_failure;
2809 if ((sinfo->filled & STATION_INFO_LLID) &&
2810 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2811 goto nla_put_failure;
2812 if ((sinfo->filled & STATION_INFO_PLID) &&
2813 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2814 goto nla_put_failure;
2815 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2816 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2817 sinfo->plink_state))
2818 goto nla_put_failure;
2819 switch (rdev->wiphy.signal_type) {
2820 case CFG80211_SIGNAL_TYPE_MBM:
2821 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2822 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2824 goto nla_put_failure;
2825 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2826 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2828 goto nla_put_failure;
2833 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2834 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2835 NL80211_STA_INFO_TX_BITRATE))
2836 goto nla_put_failure;
2838 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2839 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2840 NL80211_STA_INFO_RX_BITRATE))
2841 goto nla_put_failure;
2843 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2844 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2846 goto nla_put_failure;
2847 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2848 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2850 goto nla_put_failure;
2851 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2852 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2854 goto nla_put_failure;
2855 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2856 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2858 goto nla_put_failure;
2859 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2860 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2861 sinfo->beacon_loss_count))
2862 goto nla_put_failure;
2863 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2864 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2866 goto nla_put_failure;
2868 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2869 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2870 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2871 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2872 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2873 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2874 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2875 sinfo->bss_param.dtim_period) ||
2876 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2877 sinfo->bss_param.beacon_interval))
2878 goto nla_put_failure;
2880 nla_nest_end(msg, bss_param);
2882 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2883 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2884 sizeof(struct nl80211_sta_flag_update),
2886 goto nla_put_failure;
2887 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2888 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2890 goto nla_put_failure;
2891 nla_nest_end(msg, sinfoattr);
2893 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2894 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2895 sinfo->assoc_req_ies))
2896 goto nla_put_failure;
2898 return genlmsg_end(msg, hdr);
2901 genlmsg_cancel(msg, hdr);
2905 static int nl80211_dump_station(struct sk_buff *skb,
2906 struct netlink_callback *cb)
2908 struct station_info sinfo;
2909 struct cfg80211_registered_device *dev;
2910 struct net_device *netdev;
2911 u8 mac_addr[ETH_ALEN];
2912 int sta_idx = cb->args[1];
2915 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2919 if (!dev->ops->dump_station) {
2925 memset(&sinfo, 0, sizeof(sinfo));
2926 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2933 if (nl80211_send_station(skb,
2934 NETLINK_CB(cb->skb).pid,
2935 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2936 dev, netdev, mac_addr,
2945 cb->args[1] = sta_idx;
2948 nl80211_finish_netdev_dump(dev);
2953 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2956 struct net_device *dev = info->user_ptr[1];
2957 struct station_info sinfo;
2958 struct sk_buff *msg;
2959 u8 *mac_addr = NULL;
2962 memset(&sinfo, 0, sizeof(sinfo));
2964 if (!info->attrs[NL80211_ATTR_MAC])
2967 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2969 if (!rdev->ops->get_station)
2972 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2976 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2980 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2981 rdev, dev, mac_addr, &sinfo) < 0) {
2986 return genlmsg_reply(msg, info);
2990 * Get vlan interface making sure it is running and on the right wiphy.
2992 static struct net_device *get_vlan(struct genl_info *info,
2993 struct cfg80211_registered_device *rdev)
2995 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2996 struct net_device *v;
3002 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3004 return ERR_PTR(-ENODEV);
3006 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3011 if (!netif_running(v)) {
3019 return ERR_PTR(ret);
3022 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3026 struct net_device *dev = info->user_ptr[1];
3027 struct station_parameters params;
3028 u8 *mac_addr = NULL;
3030 memset(¶ms, 0, sizeof(params));
3032 params.listen_interval = -1;
3033 params.plink_state = -1;
3035 if (info->attrs[NL80211_ATTR_STA_AID])
3038 if (!info->attrs[NL80211_ATTR_MAC])
3041 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3043 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3044 params.supported_rates =
3045 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3046 params.supported_rates_len =
3047 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3050 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3051 params.listen_interval =
3052 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3054 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3056 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3058 if (!rdev->ops->change_station)
3061 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3064 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3065 params.plink_action =
3066 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3068 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3069 params.plink_state =
3070 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3072 switch (dev->ieee80211_ptr->iftype) {
3073 case NL80211_IFTYPE_AP:
3074 case NL80211_IFTYPE_AP_VLAN:
3075 case NL80211_IFTYPE_P2P_GO:
3076 /* disallow mesh-specific things */
3077 if (params.plink_action)
3080 /* TDLS can't be set, ... */
3081 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3084 * ... but don't bother the driver with it. This works around
3085 * a hostapd/wpa_supplicant issue -- it always includes the
3086 * TLDS_PEER flag in the mask even for AP mode.
3088 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3090 /* accept only the listed bits */
3091 if (params.sta_flags_mask &
3092 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3093 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3094 BIT(NL80211_STA_FLAG_WME) |
3095 BIT(NL80211_STA_FLAG_MFP)))
3098 /* must be last in here for error handling */
3099 params.vlan = get_vlan(info, rdev);
3100 if (IS_ERR(params.vlan))
3101 return PTR_ERR(params.vlan);
3103 case NL80211_IFTYPE_P2P_CLIENT:
3104 case NL80211_IFTYPE_STATION:
3106 * Don't allow userspace to change the TDLS_PEER flag,
3107 * but silently ignore attempts to change it since we
3108 * don't have state here to verify that it doesn't try
3109 * to change the flag.
3111 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3113 case NL80211_IFTYPE_ADHOC:
3114 /* disallow things sta doesn't support */
3115 if (params.plink_action)
3119 if (params.listen_interval >= 0)
3121 /* reject any changes other than AUTHORIZED */
3122 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3125 case NL80211_IFTYPE_MESH_POINT:
3126 /* disallow things mesh doesn't support */
3131 if (params.listen_interval >= 0)
3134 * No special handling for TDLS here -- the userspace
3135 * mesh code doesn't have this bug.
3137 if (params.sta_flags_mask &
3138 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3139 BIT(NL80211_STA_FLAG_MFP) |
3140 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3147 /* be aware of params.vlan when changing code here */
3149 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3152 dev_put(params.vlan);
3157 static struct nla_policy
3158 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3159 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3160 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3163 static int nl80211_new_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 if (!info->attrs[NL80211_ATTR_MAC])
3176 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3179 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3182 if (!info->attrs[NL80211_ATTR_STA_AID])
3185 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3186 params.supported_rates =
3187 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3188 params.supported_rates_len =
3189 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3190 params.listen_interval =
3191 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3193 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3194 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3197 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3199 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3201 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3202 params.plink_action =
3203 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3205 if (!rdev->ops->add_station)
3208 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3211 switch (dev->ieee80211_ptr->iftype) {
3212 case NL80211_IFTYPE_AP:
3213 case NL80211_IFTYPE_AP_VLAN:
3214 case NL80211_IFTYPE_P2P_GO:
3215 /* parse WME attributes if sta is WME capable */
3216 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3217 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3218 info->attrs[NL80211_ATTR_STA_WME]) {
3219 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3222 nla = info->attrs[NL80211_ATTR_STA_WME];
3223 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3224 nl80211_sta_wme_policy);
3228 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3229 params.uapsd_queues =
3230 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3231 if (params.uapsd_queues &
3232 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3235 if (tb[NL80211_STA_WME_MAX_SP])
3237 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3240 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3243 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3245 /* TDLS peers cannot be added */
3246 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3248 /* but don't bother the driver with it */
3249 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3251 /* must be last in here for error handling */
3252 params.vlan = get_vlan(info, rdev);
3253 if (IS_ERR(params.vlan))
3254 return PTR_ERR(params.vlan);
3256 case NL80211_IFTYPE_MESH_POINT:
3257 /* TDLS peers cannot be added */
3258 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3261 case NL80211_IFTYPE_STATION:
3262 /* Only TDLS peers can be added */
3263 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3265 /* Can only add if TDLS ... */
3266 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3268 /* ... with external setup is supported */
3269 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3276 /* be aware of params.vlan when changing code here */
3278 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3281 dev_put(params.vlan);
3285 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3288 struct net_device *dev = info->user_ptr[1];
3289 u8 *mac_addr = NULL;
3291 if (info->attrs[NL80211_ATTR_MAC])
3292 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3294 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3295 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3296 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3297 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3300 if (!rdev->ops->del_station)
3303 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3306 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3307 int flags, struct net_device *dev,
3308 u8 *dst, u8 *next_hop,
3309 struct mpath_info *pinfo)
3312 struct nlattr *pinfoattr;
3314 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3318 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3319 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3320 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3321 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3322 goto nla_put_failure;
3324 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3326 goto nla_put_failure;
3327 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3328 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3330 goto nla_put_failure;
3331 if (((pinfo->filled & MPATH_INFO_SN) &&
3332 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3333 ((pinfo->filled & MPATH_INFO_METRIC) &&
3334 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3336 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3337 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3339 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3340 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3342 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3343 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3344 pinfo->discovery_timeout)) ||
3345 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3346 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3347 pinfo->discovery_retries)))
3348 goto nla_put_failure;
3350 nla_nest_end(msg, pinfoattr);
3352 return genlmsg_end(msg, hdr);
3355 genlmsg_cancel(msg, hdr);
3359 static int nl80211_dump_mpath(struct sk_buff *skb,
3360 struct netlink_callback *cb)
3362 struct mpath_info pinfo;
3363 struct cfg80211_registered_device *dev;
3364 struct net_device *netdev;
3366 u8 next_hop[ETH_ALEN];
3367 int path_idx = cb->args[1];
3370 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3374 if (!dev->ops->dump_mpath) {
3379 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3385 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3386 dst, next_hop, &pinfo);
3392 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3393 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3394 netdev, dst, next_hop,
3403 cb->args[1] = path_idx;
3406 nl80211_finish_netdev_dump(dev);
3410 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3414 struct net_device *dev = info->user_ptr[1];
3415 struct mpath_info pinfo;
3416 struct sk_buff *msg;
3418 u8 next_hop[ETH_ALEN];
3420 memset(&pinfo, 0, sizeof(pinfo));
3422 if (!info->attrs[NL80211_ATTR_MAC])
3425 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3427 if (!rdev->ops->get_mpath)
3430 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3433 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3437 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3441 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3442 dev, dst, next_hop, &pinfo) < 0) {
3447 return genlmsg_reply(msg, info);
3450 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3453 struct net_device *dev = info->user_ptr[1];
3455 u8 *next_hop = NULL;
3457 if (!info->attrs[NL80211_ATTR_MAC])
3460 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3463 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3464 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3466 if (!rdev->ops->change_mpath)
3469 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3472 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3475 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3477 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3478 struct net_device *dev = info->user_ptr[1];
3480 u8 *next_hop = NULL;
3482 if (!info->attrs[NL80211_ATTR_MAC])
3485 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3488 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3489 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3491 if (!rdev->ops->add_mpath)
3494 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3497 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3500 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3502 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3503 struct net_device *dev = info->user_ptr[1];
3506 if (info->attrs[NL80211_ATTR_MAC])
3507 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3509 if (!rdev->ops->del_mpath)
3512 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3515 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3518 struct net_device *dev = info->user_ptr[1];
3519 struct bss_parameters params;
3521 memset(¶ms, 0, sizeof(params));
3522 /* default to not changing parameters */
3523 params.use_cts_prot = -1;
3524 params.use_short_preamble = -1;
3525 params.use_short_slot_time = -1;
3526 params.ap_isolate = -1;
3527 params.ht_opmode = -1;
3529 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3530 params.use_cts_prot =
3531 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3532 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3533 params.use_short_preamble =
3534 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3535 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3536 params.use_short_slot_time =
3537 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3538 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3539 params.basic_rates =
3540 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3541 params.basic_rates_len =
3542 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3544 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3545 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3546 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3548 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3550 if (!rdev->ops->change_bss)
3553 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3554 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3557 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3560 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3561 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3562 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3563 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3564 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3565 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3566 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3569 static int parse_reg_rule(struct nlattr *tb[],
3570 struct ieee80211_reg_rule *reg_rule)
3572 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3573 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3575 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3577 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3579 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3581 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3583 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3586 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3588 freq_range->start_freq_khz =
3589 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3590 freq_range->end_freq_khz =
3591 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3592 freq_range->max_bandwidth_khz =
3593 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3595 power_rule->max_eirp =
3596 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3598 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3599 power_rule->max_antenna_gain =
3600 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3605 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3609 enum nl80211_user_reg_hint_type user_reg_hint_type;
3612 * You should only get this when cfg80211 hasn't yet initialized
3613 * completely when built-in to the kernel right between the time
3614 * window between nl80211_init() and regulatory_init(), if that is
3617 mutex_lock(&cfg80211_mutex);
3618 if (unlikely(!cfg80211_regdomain)) {
3619 mutex_unlock(&cfg80211_mutex);
3620 return -EINPROGRESS;
3622 mutex_unlock(&cfg80211_mutex);
3624 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3627 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3629 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3630 user_reg_hint_type =
3631 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3633 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3635 switch (user_reg_hint_type) {
3636 case NL80211_USER_REG_HINT_USER:
3637 case NL80211_USER_REG_HINT_CELL_BASE:
3643 r = regulatory_hint_user(data, user_reg_hint_type);
3648 static int nl80211_get_mesh_config(struct sk_buff *skb,
3649 struct genl_info *info)
3651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3652 struct net_device *dev = info->user_ptr[1];
3653 struct wireless_dev *wdev = dev->ieee80211_ptr;
3654 struct mesh_config cur_params;
3657 struct nlattr *pinfoattr;
3658 struct sk_buff *msg;
3660 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3663 if (!rdev->ops->get_mesh_config)
3667 /* If not connected, get default parameters */
3668 if (!wdev->mesh_id_len)
3669 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3671 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3678 /* Draw up a netlink message to send back */
3679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3682 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3683 NL80211_CMD_GET_MESH_CONFIG);
3686 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3688 goto nla_put_failure;
3689 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3690 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3691 cur_params.dot11MeshRetryTimeout) ||
3692 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3693 cur_params.dot11MeshConfirmTimeout) ||
3694 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3695 cur_params.dot11MeshHoldingTimeout) ||
3696 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3697 cur_params.dot11MeshMaxPeerLinks) ||
3698 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3699 cur_params.dot11MeshMaxRetries) ||
3700 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3701 cur_params.dot11MeshTTL) ||
3702 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3703 cur_params.element_ttl) ||
3704 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3705 cur_params.auto_open_plinks) ||
3706 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3707 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3708 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3709 cur_params.dot11MeshHWMPmaxPREQretries) ||
3710 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3711 cur_params.path_refresh_time) ||
3712 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3713 cur_params.min_discovery_timeout) ||
3714 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3715 cur_params.dot11MeshHWMPactivePathTimeout) ||
3716 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3717 cur_params.dot11MeshHWMPpreqMinInterval) ||
3718 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3719 cur_params.dot11MeshHWMPperrMinInterval) ||
3720 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3721 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3722 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3723 cur_params.dot11MeshHWMPRootMode) ||
3724 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3725 cur_params.dot11MeshHWMPRannInterval) ||
3726 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3727 cur_params.dot11MeshGateAnnouncementProtocol) ||
3728 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3729 cur_params.dot11MeshForwarding) ||
3730 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3731 cur_params.rssi_threshold) ||
3732 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3733 cur_params.ht_opmode) ||
3734 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3735 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3736 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3737 cur_params.dot11MeshHWMProotInterval) ||
3738 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3739 cur_params.dot11MeshHWMPconfirmationInterval))
3740 goto nla_put_failure;
3741 nla_nest_end(msg, pinfoattr);
3742 genlmsg_end(msg, hdr);
3743 return genlmsg_reply(msg, info);
3746 genlmsg_cancel(msg, hdr);
3752 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3753 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3754 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3755 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3756 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3757 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3758 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3759 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3760 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3761 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3762 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3763 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3764 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3765 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3766 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3767 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3768 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3769 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3770 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3771 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3772 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3773 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3774 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3775 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3776 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3777 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3780 static const struct nla_policy
3781 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3782 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3783 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3784 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3785 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3786 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3787 .len = IEEE80211_MAX_DATA_LEN },
3788 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3791 static int nl80211_parse_mesh_config(struct genl_info *info,
3792 struct mesh_config *cfg,
3795 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3798 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3800 if (table[attr_num]) {\
3801 cfg->param = nla_fn(table[attr_num]); \
3802 mask |= (1 << (attr_num - 1)); \
3807 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3809 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3810 info->attrs[NL80211_ATTR_MESH_CONFIG],
3811 nl80211_meshconf_params_policy))
3814 /* This makes sure that there aren't more than 32 mesh config
3815 * parameters (otherwise our bitfield scheme would not work.) */
3816 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3818 /* Fill in the params struct */
3819 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3820 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3822 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3823 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3825 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3826 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3828 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3829 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3831 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3832 mask, NL80211_MESHCONF_MAX_RETRIES,
3834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3835 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3836 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3837 mask, NL80211_MESHCONF_ELEMENT_TTL,
3839 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3840 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3842 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3843 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3845 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3846 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3848 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3849 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3851 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3852 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3854 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3855 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3857 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3858 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3860 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3861 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3863 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3864 dot11MeshHWMPnetDiameterTraversalTime, mask,
3865 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3868 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3870 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3872 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3873 dot11MeshGateAnnouncementProtocol, mask,
3874 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3877 mask, NL80211_MESHCONF_FORWARDING,
3879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3880 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3883 mask, NL80211_MESHCONF_HT_OPMODE,
3885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3887 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3889 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3890 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3893 dot11MeshHWMPconfirmationInterval, mask,
3894 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3901 #undef FILL_IN_MESH_PARAM_IF_SET
3904 static int nl80211_parse_mesh_setup(struct genl_info *info,
3905 struct mesh_setup *setup)
3907 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3909 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3911 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3912 info->attrs[NL80211_ATTR_MESH_SETUP],
3913 nl80211_mesh_setup_params_policy))
3916 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3917 setup->sync_method =
3918 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3919 IEEE80211_SYNC_METHOD_VENDOR :
3920 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3922 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3923 setup->path_sel_proto =
3924 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3925 IEEE80211_PATH_PROTOCOL_VENDOR :
3926 IEEE80211_PATH_PROTOCOL_HWMP;
3928 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3929 setup->path_metric =
3930 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3931 IEEE80211_PATH_METRIC_VENDOR :
3932 IEEE80211_PATH_METRIC_AIRTIME;
3935 if (tb[NL80211_MESH_SETUP_IE]) {
3936 struct nlattr *ieattr =
3937 tb[NL80211_MESH_SETUP_IE];
3938 if (!is_valid_ie_attr(ieattr))
3940 setup->ie = nla_data(ieattr);
3941 setup->ie_len = nla_len(ieattr);
3943 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3944 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3949 static int nl80211_update_mesh_config(struct sk_buff *skb,
3950 struct genl_info *info)
3952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3953 struct net_device *dev = info->user_ptr[1];
3954 struct wireless_dev *wdev = dev->ieee80211_ptr;
3955 struct mesh_config cfg;
3959 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3962 if (!rdev->ops->update_mesh_config)
3965 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3970 if (!wdev->mesh_id_len)
3974 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3982 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3984 struct sk_buff *msg;
3986 struct nlattr *nl_reg_rules;
3990 mutex_lock(&cfg80211_mutex);
3992 if (!cfg80211_regdomain)
3995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4001 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
4002 NL80211_CMD_GET_REG);
4006 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4007 cfg80211_regdomain->alpha2) ||
4008 (cfg80211_regdomain->dfs_region &&
4009 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4010 cfg80211_regdomain->dfs_region)))
4011 goto nla_put_failure;
4013 if (reg_last_request_cell_base() &&
4014 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4015 NL80211_USER_REG_HINT_CELL_BASE))
4016 goto nla_put_failure;
4018 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4020 goto nla_put_failure;
4022 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4023 struct nlattr *nl_reg_rule;
4024 const struct ieee80211_reg_rule *reg_rule;
4025 const struct ieee80211_freq_range *freq_range;
4026 const struct ieee80211_power_rule *power_rule;
4028 reg_rule = &cfg80211_regdomain->reg_rules[i];
4029 freq_range = ®_rule->freq_range;
4030 power_rule = ®_rule->power_rule;
4032 nl_reg_rule = nla_nest_start(msg, i);
4034 goto nla_put_failure;
4036 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4038 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4039 freq_range->start_freq_khz) ||
4040 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4041 freq_range->end_freq_khz) ||
4042 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4043 freq_range->max_bandwidth_khz) ||
4044 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4045 power_rule->max_antenna_gain) ||
4046 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4047 power_rule->max_eirp))
4048 goto nla_put_failure;
4050 nla_nest_end(msg, nl_reg_rule);
4053 nla_nest_end(msg, nl_reg_rules);
4055 genlmsg_end(msg, hdr);
4056 err = genlmsg_reply(msg, info);
4060 genlmsg_cancel(msg, hdr);
4065 mutex_unlock(&cfg80211_mutex);
4069 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4071 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4072 struct nlattr *nl_reg_rule;
4073 char *alpha2 = NULL;
4074 int rem_reg_rules = 0, r = 0;
4075 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4077 struct ieee80211_regdomain *rd = NULL;
4079 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4082 if (!info->attrs[NL80211_ATTR_REG_RULES])
4085 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4087 if (info->attrs[NL80211_ATTR_DFS_REGION])
4088 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4090 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4093 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4097 mutex_lock(&cfg80211_mutex);
4099 if (!reg_is_valid_request(alpha2)) {
4104 size_of_regd = sizeof(struct ieee80211_regdomain) +
4105 (num_rules * sizeof(struct ieee80211_reg_rule));
4107 rd = kzalloc(size_of_regd, GFP_KERNEL);
4113 rd->n_reg_rules = num_rules;
4114 rd->alpha2[0] = alpha2[0];
4115 rd->alpha2[1] = alpha2[1];
4118 * Disable DFS master mode if the DFS region was
4119 * not supported or known on this kernel.
4121 if (reg_supported_dfs_region(dfs_region))
4122 rd->dfs_region = dfs_region;
4124 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4126 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4127 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4129 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4135 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4141 BUG_ON(rule_idx != num_rules);
4145 mutex_unlock(&cfg80211_mutex);
4150 mutex_unlock(&cfg80211_mutex);
4155 static int validate_scan_freqs(struct nlattr *freqs)
4157 struct nlattr *attr1, *attr2;
4158 int n_channels = 0, tmp1, tmp2;
4160 nla_for_each_nested(attr1, freqs, tmp1) {
4163 * Some hardware has a limited channel list for
4164 * scanning, and it is pretty much nonsensical
4165 * to scan for a channel twice, so disallow that
4166 * and don't require drivers to check that the
4167 * channel list they get isn't longer than what
4168 * they can scan, as long as they can scan all
4169 * the channels they registered at once.
4171 nla_for_each_nested(attr2, freqs, tmp2)
4172 if (attr1 != attr2 &&
4173 nla_get_u32(attr1) == nla_get_u32(attr2))
4180 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4183 struct wireless_dev *wdev = info->user_ptr[1];
4184 struct cfg80211_scan_request *request;
4185 struct nlattr *attr;
4186 struct wiphy *wiphy;
4187 int err, tmp, n_ssids = 0, n_channels, i;
4190 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4193 wiphy = &rdev->wiphy;
4195 if (!rdev->ops->scan)
4201 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4202 n_channels = validate_scan_freqs(
4203 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4207 enum ieee80211_band band;
4210 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4211 if (wiphy->bands[band])
4212 n_channels += wiphy->bands[band]->n_channels;
4215 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4216 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4219 if (n_ssids > wiphy->max_scan_ssids)
4222 if (info->attrs[NL80211_ATTR_IE])
4223 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4227 if (ie_len > wiphy->max_scan_ie_len)
4230 request = kzalloc(sizeof(*request)
4231 + sizeof(*request->ssids) * n_ssids
4232 + sizeof(*request->channels) * n_channels
4233 + ie_len, GFP_KERNEL);
4238 request->ssids = (void *)&request->channels[n_channels];
4239 request->n_ssids = n_ssids;
4242 request->ie = (void *)(request->ssids + n_ssids);
4244 request->ie = (void *)(request->channels + n_channels);
4248 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4249 /* user specified, bail out if channel not found */
4250 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4251 struct ieee80211_channel *chan;
4253 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4260 /* ignore disabled channels */
4261 if (chan->flags & IEEE80211_CHAN_DISABLED)
4264 request->channels[i] = chan;
4268 enum ieee80211_band band;
4271 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4273 if (!wiphy->bands[band])
4275 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4276 struct ieee80211_channel *chan;
4278 chan = &wiphy->bands[band]->channels[j];
4280 if (chan->flags & IEEE80211_CHAN_DISABLED)
4283 request->channels[i] = chan;
4294 request->n_channels = i;
4297 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4298 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4299 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4303 request->ssids[i].ssid_len = nla_len(attr);
4304 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4309 if (info->attrs[NL80211_ATTR_IE]) {
4310 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4311 memcpy((void *)request->ie,
4312 nla_data(info->attrs[NL80211_ATTR_IE]),
4316 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4317 if (wiphy->bands[i])
4319 (1 << wiphy->bands[i]->n_bitrates) - 1;
4321 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4322 nla_for_each_nested(attr,
4323 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4325 enum ieee80211_band band = nla_type(attr);
4327 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4331 err = ieee80211_get_ratemask(wiphy->bands[band],
4334 &request->rates[band]);
4341 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4343 request->wdev = wdev;
4344 request->wiphy = &rdev->wiphy;
4346 rdev->scan_req = request;
4347 err = rdev->ops->scan(&rdev->wiphy, request);
4350 nl80211_send_scan_start(rdev, wdev);
4352 dev_hold(wdev->netdev);
4355 rdev->scan_req = NULL;
4362 static int nl80211_start_sched_scan(struct sk_buff *skb,
4363 struct genl_info *info)
4365 struct cfg80211_sched_scan_request *request;
4366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4367 struct net_device *dev = info->user_ptr[1];
4368 struct nlattr *attr;
4369 struct wiphy *wiphy;
4370 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4372 enum ieee80211_band band;
4374 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4376 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4377 !rdev->ops->sched_scan_start)
4380 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4383 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4386 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4390 wiphy = &rdev->wiphy;
4392 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4393 n_channels = validate_scan_freqs(
4394 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4400 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4401 if (wiphy->bands[band])
4402 n_channels += wiphy->bands[band]->n_channels;
4405 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4406 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4410 if (n_ssids > wiphy->max_sched_scan_ssids)
4413 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4414 nla_for_each_nested(attr,
4415 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4419 if (n_match_sets > wiphy->max_match_sets)
4422 if (info->attrs[NL80211_ATTR_IE])
4423 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4427 if (ie_len > wiphy->max_sched_scan_ie_len)
4430 mutex_lock(&rdev->sched_scan_mtx);
4432 if (rdev->sched_scan_req) {
4437 request = kzalloc(sizeof(*request)
4438 + sizeof(*request->ssids) * n_ssids
4439 + sizeof(*request->match_sets) * n_match_sets
4440 + sizeof(*request->channels) * n_channels
4441 + ie_len, GFP_KERNEL);
4448 request->ssids = (void *)&request->channels[n_channels];
4449 request->n_ssids = n_ssids;
4452 request->ie = (void *)(request->ssids + n_ssids);
4454 request->ie = (void *)(request->channels + n_channels);
4459 request->match_sets = (void *)(request->ie + ie_len);
4460 else if (request->ssids)
4461 request->match_sets =
4462 (void *)(request->ssids + n_ssids);
4464 request->match_sets =
4465 (void *)(request->channels + n_channels);
4467 request->n_match_sets = n_match_sets;
4470 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4471 /* user specified, bail out if channel not found */
4472 nla_for_each_nested(attr,
4473 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4475 struct ieee80211_channel *chan;
4477 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4484 /* ignore disabled channels */
4485 if (chan->flags & IEEE80211_CHAN_DISABLED)
4488 request->channels[i] = chan;
4493 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4495 if (!wiphy->bands[band])
4497 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4498 struct ieee80211_channel *chan;
4500 chan = &wiphy->bands[band]->channels[j];
4502 if (chan->flags & IEEE80211_CHAN_DISABLED)
4505 request->channels[i] = chan;
4516 request->n_channels = i;
4519 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4520 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4522 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4526 request->ssids[i].ssid_len = nla_len(attr);
4527 memcpy(request->ssids[i].ssid, nla_data(attr),
4534 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4535 nla_for_each_nested(attr,
4536 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4538 struct nlattr *ssid, *rssi;
4540 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4541 nla_data(attr), nla_len(attr),
4542 nl80211_match_policy);
4543 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4545 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4549 memcpy(request->match_sets[i].ssid.ssid,
4550 nla_data(ssid), nla_len(ssid));
4551 request->match_sets[i].ssid.ssid_len =
4554 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4556 request->rssi_thold = nla_get_u32(rssi);
4558 request->rssi_thold =
4559 NL80211_SCAN_RSSI_THOLD_OFF;
4564 if (info->attrs[NL80211_ATTR_IE]) {
4565 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4566 memcpy((void *)request->ie,
4567 nla_data(info->attrs[NL80211_ATTR_IE]),
4572 request->wiphy = &rdev->wiphy;
4573 request->interval = interval;
4575 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4577 rdev->sched_scan_req = request;
4578 nl80211_send_sched_scan(rdev, dev,
4579 NL80211_CMD_START_SCHED_SCAN);
4586 mutex_unlock(&rdev->sched_scan_mtx);
4590 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4591 struct genl_info *info)
4593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4596 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4597 !rdev->ops->sched_scan_stop)
4600 mutex_lock(&rdev->sched_scan_mtx);
4601 err = __cfg80211_stop_sched_scan(rdev, false);
4602 mutex_unlock(&rdev->sched_scan_mtx);
4607 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4609 struct cfg80211_registered_device *rdev,
4610 struct wireless_dev *wdev,
4611 struct cfg80211_internal_bss *intbss)
4613 struct cfg80211_bss *res = &intbss->pub;
4617 ASSERT_WDEV_LOCK(wdev);
4619 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4620 NL80211_CMD_NEW_SCAN_RESULTS);
4624 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4626 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4627 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4628 goto nla_put_failure;
4630 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4632 goto nla_put_failure;
4633 if ((!is_zero_ether_addr(res->bssid) &&
4634 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4635 (res->information_elements && res->len_information_elements &&
4636 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4637 res->len_information_elements,
4638 res->information_elements)) ||
4639 (res->beacon_ies && res->len_beacon_ies &&
4640 res->beacon_ies != res->information_elements &&
4641 nla_put(msg, NL80211_BSS_BEACON_IES,
4642 res->len_beacon_ies, res->beacon_ies)))
4643 goto nla_put_failure;
4645 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4646 goto nla_put_failure;
4647 if (res->beacon_interval &&
4648 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4649 goto nla_put_failure;
4650 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4651 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4652 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4653 jiffies_to_msecs(jiffies - intbss->ts)))
4654 goto nla_put_failure;
4656 switch (rdev->wiphy.signal_type) {
4657 case CFG80211_SIGNAL_TYPE_MBM:
4658 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4659 goto nla_put_failure;
4661 case CFG80211_SIGNAL_TYPE_UNSPEC:
4662 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4663 goto nla_put_failure;
4669 switch (wdev->iftype) {
4670 case NL80211_IFTYPE_P2P_CLIENT:
4671 case NL80211_IFTYPE_STATION:
4672 if (intbss == wdev->current_bss &&
4673 nla_put_u32(msg, NL80211_BSS_STATUS,
4674 NL80211_BSS_STATUS_ASSOCIATED))
4675 goto nla_put_failure;
4677 case NL80211_IFTYPE_ADHOC:
4678 if (intbss == wdev->current_bss &&
4679 nla_put_u32(msg, NL80211_BSS_STATUS,
4680 NL80211_BSS_STATUS_IBSS_JOINED))
4681 goto nla_put_failure;
4687 nla_nest_end(msg, bss);
4689 return genlmsg_end(msg, hdr);
4692 genlmsg_cancel(msg, hdr);
4696 static int nl80211_dump_scan(struct sk_buff *skb,
4697 struct netlink_callback *cb)
4699 struct cfg80211_registered_device *rdev;
4700 struct net_device *dev;
4701 struct cfg80211_internal_bss *scan;
4702 struct wireless_dev *wdev;
4703 int start = cb->args[1], idx = 0;
4706 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4710 wdev = dev->ieee80211_ptr;
4713 spin_lock_bh(&rdev->bss_lock);
4714 cfg80211_bss_expire(rdev);
4716 cb->seq = rdev->bss_generation;
4718 list_for_each_entry(scan, &rdev->bss_list, list) {
4721 if (nl80211_send_bss(skb, cb,
4722 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4723 rdev, wdev, scan) < 0) {
4729 spin_unlock_bh(&rdev->bss_lock);
4733 nl80211_finish_netdev_dump(rdev);
4738 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4739 int flags, struct net_device *dev,
4740 struct survey_info *survey)
4743 struct nlattr *infoattr;
4745 hdr = nl80211hdr_put(msg, pid, seq, flags,
4746 NL80211_CMD_NEW_SURVEY_RESULTS);
4750 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4751 goto nla_put_failure;
4753 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4755 goto nla_put_failure;
4757 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4758 survey->channel->center_freq))
4759 goto nla_put_failure;
4761 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4762 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4763 goto nla_put_failure;
4764 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4765 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4766 goto nla_put_failure;
4767 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4768 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4769 survey->channel_time))
4770 goto nla_put_failure;
4771 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4772 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4773 survey->channel_time_busy))
4774 goto nla_put_failure;
4775 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4776 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4777 survey->channel_time_ext_busy))
4778 goto nla_put_failure;
4779 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4780 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4781 survey->channel_time_rx))
4782 goto nla_put_failure;
4783 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4784 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4785 survey->channel_time_tx))
4786 goto nla_put_failure;
4788 nla_nest_end(msg, infoattr);
4790 return genlmsg_end(msg, hdr);
4793 genlmsg_cancel(msg, hdr);
4797 static int nl80211_dump_survey(struct sk_buff *skb,
4798 struct netlink_callback *cb)
4800 struct survey_info survey;
4801 struct cfg80211_registered_device *dev;
4802 struct net_device *netdev;
4803 int survey_idx = cb->args[1];
4806 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4810 if (!dev->ops->dump_survey) {
4816 struct ieee80211_channel *chan;
4818 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4825 /* Survey without a channel doesn't make sense */
4826 if (!survey.channel) {
4831 chan = ieee80211_get_channel(&dev->wiphy,
4832 survey.channel->center_freq);
4833 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4838 if (nl80211_send_survey(skb,
4839 NETLINK_CB(cb->skb).pid,
4840 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4848 cb->args[1] = survey_idx;
4851 nl80211_finish_netdev_dump(dev);
4855 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4857 return auth_type <= NL80211_AUTHTYPE_MAX;
4860 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4862 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4863 NL80211_WPA_VERSION_2));
4866 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4869 struct net_device *dev = info->user_ptr[1];
4870 struct ieee80211_channel *chan;
4871 const u8 *bssid, *ssid, *ie = NULL;
4872 int err, ssid_len, ie_len = 0;
4873 enum nl80211_auth_type auth_type;
4874 struct key_parse key;
4875 bool local_state_change;
4877 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4880 if (!info->attrs[NL80211_ATTR_MAC])
4883 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4886 if (!info->attrs[NL80211_ATTR_SSID])
4889 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4892 err = nl80211_parse_key(info, &key);
4897 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4899 if (!key.p.key || !key.p.key_len)
4901 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4902 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4903 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4904 key.p.key_len != WLAN_KEY_LEN_WEP104))
4916 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4917 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4926 if (!rdev->ops->auth)
4929 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4930 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4933 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4934 chan = ieee80211_get_channel(&rdev->wiphy,
4935 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4936 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4939 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4940 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4942 if (info->attrs[NL80211_ATTR_IE]) {
4943 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4944 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4947 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4948 if (!nl80211_valid_auth_type(auth_type))
4951 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4954 * Since we no longer track auth state, ignore
4955 * requests to only change local state.
4957 if (local_state_change)
4960 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4961 ssid, ssid_len, ie, ie_len,
4962 key.p.key, key.p.key_len, key.idx);
4965 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4966 struct genl_info *info,
4967 struct cfg80211_crypto_settings *settings,
4970 memset(settings, 0, sizeof(*settings));
4972 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4974 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4976 proto = nla_get_u16(
4977 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4978 settings->control_port_ethertype = cpu_to_be16(proto);
4979 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4982 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4983 settings->control_port_no_encrypt = true;
4985 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4987 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4991 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4992 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4993 settings->n_ciphers_pairwise = len / sizeof(u32);
4995 if (len % sizeof(u32))
4998 if (settings->n_ciphers_pairwise > cipher_limit)
5001 memcpy(settings->ciphers_pairwise, data, len);
5003 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5004 if (!cfg80211_supported_cipher_suite(
5006 settings->ciphers_pairwise[i]))
5010 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5011 settings->cipher_group =
5012 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5013 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5014 settings->cipher_group))
5018 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5019 settings->wpa_versions =
5020 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5021 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5025 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5029 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5030 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5031 settings->n_akm_suites = len / sizeof(u32);
5033 if (len % sizeof(u32))
5036 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5039 memcpy(settings->akm_suites, data, len);
5045 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5048 struct net_device *dev = info->user_ptr[1];
5049 struct cfg80211_crypto_settings crypto;
5050 struct ieee80211_channel *chan;
5051 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5052 int err, ssid_len, ie_len = 0;
5053 bool use_mfp = false;
5055 struct ieee80211_ht_cap *ht_capa = NULL;
5056 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5058 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5061 if (!info->attrs[NL80211_ATTR_MAC] ||
5062 !info->attrs[NL80211_ATTR_SSID] ||
5063 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5066 if (!rdev->ops->assoc)
5069 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5070 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5073 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5075 chan = ieee80211_get_channel(&rdev->wiphy,
5076 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5077 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5080 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5081 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5083 if (info->attrs[NL80211_ATTR_IE]) {
5084 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5085 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5088 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5089 enum nl80211_mfp mfp =
5090 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5091 if (mfp == NL80211_MFP_REQUIRED)
5093 else if (mfp != NL80211_MFP_NO)
5097 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5098 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5100 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5101 flags |= ASSOC_REQ_DISABLE_HT;
5103 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5105 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5107 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5110 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5113 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5115 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5116 ssid, ssid_len, ie, ie_len, use_mfp,
5117 &crypto, flags, ht_capa,
5123 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5126 struct net_device *dev = info->user_ptr[1];
5127 const u8 *ie = NULL, *bssid;
5130 bool local_state_change;
5132 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5135 if (!info->attrs[NL80211_ATTR_MAC])
5138 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5141 if (!rdev->ops->deauth)
5144 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5145 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5148 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5150 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5151 if (reason_code == 0) {
5152 /* Reason Code 0 is reserved */
5156 if (info->attrs[NL80211_ATTR_IE]) {
5157 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5158 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5161 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5163 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5164 local_state_change);
5167 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5170 struct net_device *dev = info->user_ptr[1];
5171 const u8 *ie = NULL, *bssid;
5174 bool local_state_change;
5176 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5179 if (!info->attrs[NL80211_ATTR_MAC])
5182 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5185 if (!rdev->ops->disassoc)
5188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5192 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5194 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5195 if (reason_code == 0) {
5196 /* Reason Code 0 is reserved */
5200 if (info->attrs[NL80211_ATTR_IE]) {
5201 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5202 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5205 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5207 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5208 local_state_change);
5212 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5213 int mcast_rate[IEEE80211_NUM_BANDS],
5216 struct wiphy *wiphy = &rdev->wiphy;
5220 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5221 struct ieee80211_supported_band *sband;
5223 sband = wiphy->bands[band];
5227 for (i = 0; i < sband->n_bitrates; i++) {
5228 if (sband->bitrates[i].bitrate == rateval) {
5229 mcast_rate[band] = i + 1;
5239 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5242 struct net_device *dev = info->user_ptr[1];
5243 struct cfg80211_ibss_params ibss;
5244 struct wiphy *wiphy;
5245 struct cfg80211_cached_keys *connkeys = NULL;
5248 memset(&ibss, 0, sizeof(ibss));
5250 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5253 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5254 !info->attrs[NL80211_ATTR_SSID] ||
5255 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5258 ibss.beacon_interval = 100;
5260 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5261 ibss.beacon_interval =
5262 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5263 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5267 if (!rdev->ops->join_ibss)
5270 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5273 wiphy = &rdev->wiphy;
5275 if (info->attrs[NL80211_ATTR_MAC]) {
5276 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5278 if (!is_valid_ether_addr(ibss.bssid))
5281 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5282 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5284 if (info->attrs[NL80211_ATTR_IE]) {
5285 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5286 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5289 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5290 enum nl80211_channel_type channel_type;
5292 if (!nl80211_valid_channel_type(info, &channel_type))
5295 if (channel_type != NL80211_CHAN_NO_HT &&
5296 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5299 ibss.channel_type = channel_type;
5301 ibss.channel_type = NL80211_CHAN_NO_HT;
5304 ibss.channel = rdev_freq_to_chan(rdev,
5305 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5307 if (!ibss.channel ||
5308 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5309 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5312 /* Both channels should be able to initiate communication */
5313 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5314 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5315 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5319 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5320 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5322 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5324 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5326 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5327 struct ieee80211_supported_band *sband =
5328 wiphy->bands[ibss.channel->band];
5330 err = ieee80211_get_ratemask(sband, rates, n_rates,
5336 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5337 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5338 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5341 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5342 connkeys = nl80211_parse_connkeys(rdev,
5343 info->attrs[NL80211_ATTR_KEYS]);
5344 if (IS_ERR(connkeys))
5345 return PTR_ERR(connkeys);
5349 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5351 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5357 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5360 struct net_device *dev = info->user_ptr[1];
5362 if (!rdev->ops->leave_ibss)
5365 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5368 return cfg80211_leave_ibss(rdev, dev, false);
5371 #ifdef CONFIG_NL80211_TESTMODE
5372 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5376 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5378 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5381 if (!info->attrs[NL80211_ATTR_TESTDATA])
5385 if (rdev->ops->testmode_cmd) {
5386 rdev->testmode_info = info;
5387 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5388 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5389 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5390 rdev->testmode_info = NULL;
5396 static int nl80211_testmode_dump(struct sk_buff *skb,
5397 struct netlink_callback *cb)
5399 struct cfg80211_registered_device *rdev;
5407 * 0 is a valid index, but not valid for args[0],
5408 * so we need to offset by 1.
5410 phy_idx = cb->args[0] - 1;
5412 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5413 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5418 mutex_lock(&cfg80211_mutex);
5419 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5420 nl80211_fam.attrbuf);
5422 mutex_unlock(&cfg80211_mutex);
5423 return PTR_ERR(rdev);
5425 phy_idx = rdev->wiphy_idx;
5427 mutex_unlock(&cfg80211_mutex);
5429 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5431 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5435 data = nla_data((void *)cb->args[1]);
5436 data_len = nla_len((void *)cb->args[1]);
5439 mutex_lock(&cfg80211_mutex);
5440 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5442 mutex_unlock(&cfg80211_mutex);
5445 cfg80211_lock_rdev(rdev);
5446 mutex_unlock(&cfg80211_mutex);
5448 if (!rdev->ops->testmode_dump) {
5454 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5455 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5456 NL80211_CMD_TESTMODE);
5457 struct nlattr *tmdata;
5459 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5460 genlmsg_cancel(skb, hdr);
5464 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5466 genlmsg_cancel(skb, hdr);
5469 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5471 nla_nest_end(skb, tmdata);
5473 if (err == -ENOBUFS || err == -ENOENT) {
5474 genlmsg_cancel(skb, hdr);
5477 genlmsg_cancel(skb, hdr);
5481 genlmsg_end(skb, hdr);
5486 cb->args[0] = phy_idx + 1;
5488 cfg80211_unlock_rdev(rdev);
5492 static struct sk_buff *
5493 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5494 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5496 struct sk_buff *skb;
5498 struct nlattr *data;
5500 skb = nlmsg_new(approxlen + 100, gfp);
5504 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5510 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5511 goto nla_put_failure;
5512 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5514 ((void **)skb->cb)[0] = rdev;
5515 ((void **)skb->cb)[1] = hdr;
5516 ((void **)skb->cb)[2] = data;
5525 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5528 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5530 if (WARN_ON(!rdev->testmode_info))
5533 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5534 rdev->testmode_info->snd_pid,
5535 rdev->testmode_info->snd_seq,
5538 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5540 int cfg80211_testmode_reply(struct sk_buff *skb)
5542 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5543 void *hdr = ((void **)skb->cb)[1];
5544 struct nlattr *data = ((void **)skb->cb)[2];
5546 if (WARN_ON(!rdev->testmode_info)) {
5551 nla_nest_end(skb, data);
5552 genlmsg_end(skb, hdr);
5553 return genlmsg_reply(skb, rdev->testmode_info);
5555 EXPORT_SYMBOL(cfg80211_testmode_reply);
5557 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5558 int approxlen, gfp_t gfp)
5560 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5562 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5564 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5566 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5568 void *hdr = ((void **)skb->cb)[1];
5569 struct nlattr *data = ((void **)skb->cb)[2];
5571 nla_nest_end(skb, data);
5572 genlmsg_end(skb, hdr);
5573 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5575 EXPORT_SYMBOL(cfg80211_testmode_event);
5578 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5581 struct net_device *dev = info->user_ptr[1];
5582 struct cfg80211_connect_params connect;
5583 struct wiphy *wiphy;
5584 struct cfg80211_cached_keys *connkeys = NULL;
5587 memset(&connect, 0, sizeof(connect));
5589 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5592 if (!info->attrs[NL80211_ATTR_SSID] ||
5593 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5596 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5598 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5599 if (!nl80211_valid_auth_type(connect.auth_type))
5602 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5604 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5606 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5607 NL80211_MAX_NR_CIPHER_SUITES);
5611 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5612 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5615 wiphy = &rdev->wiphy;
5617 connect.bg_scan_period = -1;
5618 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5619 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5620 connect.bg_scan_period =
5621 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5624 if (info->attrs[NL80211_ATTR_MAC])
5625 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5626 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5627 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5629 if (info->attrs[NL80211_ATTR_IE]) {
5630 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5631 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5634 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5636 ieee80211_get_channel(wiphy,
5637 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5638 if (!connect.channel ||
5639 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5643 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5644 connkeys = nl80211_parse_connkeys(rdev,
5645 info->attrs[NL80211_ATTR_KEYS]);
5646 if (IS_ERR(connkeys))
5647 return PTR_ERR(connkeys);
5650 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5651 connect.flags |= ASSOC_REQ_DISABLE_HT;
5653 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5654 memcpy(&connect.ht_capa_mask,
5655 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5656 sizeof(connect.ht_capa_mask));
5658 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5659 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5661 memcpy(&connect.ht_capa,
5662 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5663 sizeof(connect.ht_capa));
5666 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5672 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5675 struct net_device *dev = info->user_ptr[1];
5678 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5679 reason = WLAN_REASON_DEAUTH_LEAVING;
5681 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5686 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5687 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5690 return cfg80211_disconnect(rdev, dev, reason, true);
5693 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5700 if (!info->attrs[NL80211_ATTR_PID])
5703 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5705 net = get_net_ns_by_pid(pid);
5707 return PTR_ERR(net);
5711 /* check if anything to do */
5712 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5713 err = cfg80211_switch_netns(rdev, net);
5719 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5722 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5723 struct cfg80211_pmksa *pmksa) = NULL;
5724 struct net_device *dev = info->user_ptr[1];
5725 struct cfg80211_pmksa pmksa;
5727 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5729 if (!info->attrs[NL80211_ATTR_MAC])
5732 if (!info->attrs[NL80211_ATTR_PMKID])
5735 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5736 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5738 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5739 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5742 switch (info->genlhdr->cmd) {
5743 case NL80211_CMD_SET_PMKSA:
5744 rdev_ops = rdev->ops->set_pmksa;
5746 case NL80211_CMD_DEL_PMKSA:
5747 rdev_ops = rdev->ops->del_pmksa;
5757 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5760 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5762 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5763 struct net_device *dev = info->user_ptr[1];
5765 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5766 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5769 if (!rdev->ops->flush_pmksa)
5772 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5775 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5778 struct net_device *dev = info->user_ptr[1];
5779 u8 action_code, dialog_token;
5783 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5784 !rdev->ops->tdls_mgmt)
5787 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5788 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5789 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5790 !info->attrs[NL80211_ATTR_IE] ||
5791 !info->attrs[NL80211_ATTR_MAC])
5794 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5795 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5796 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5797 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5799 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5800 dialog_token, status_code,
5801 nla_data(info->attrs[NL80211_ATTR_IE]),
5802 nla_len(info->attrs[NL80211_ATTR_IE]));
5805 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5808 struct net_device *dev = info->user_ptr[1];
5809 enum nl80211_tdls_operation operation;
5812 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5813 !rdev->ops->tdls_oper)
5816 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5817 !info->attrs[NL80211_ATTR_MAC])
5820 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5821 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5823 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5826 static int nl80211_remain_on_channel(struct sk_buff *skb,
5827 struct genl_info *info)
5829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5830 struct wireless_dev *wdev = info->user_ptr[1];
5831 struct ieee80211_channel *chan;
5832 struct sk_buff *msg;
5835 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5839 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5840 !info->attrs[NL80211_ATTR_DURATION])
5843 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5845 if (!rdev->ops->remain_on_channel ||
5846 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5850 * We should be on that channel for at least a minimum amount of
5851 * time (10ms) but no longer than the driver supports.
5853 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5854 duration > rdev->wiphy.max_remain_on_channel_duration)
5857 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5858 !nl80211_valid_channel_type(info, &channel_type))
5861 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5862 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5870 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5871 NL80211_CMD_REMAIN_ON_CHANNEL);
5878 err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
5879 channel_type, duration, &cookie);
5884 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5885 goto nla_put_failure;
5887 genlmsg_end(msg, hdr);
5889 return genlmsg_reply(msg, info);
5898 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5899 struct genl_info *info)
5901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5902 struct wireless_dev *wdev = info->user_ptr[1];
5905 if (!info->attrs[NL80211_ATTR_COOKIE])
5908 if (!rdev->ops->cancel_remain_on_channel)
5911 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5913 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
5916 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5917 u8 *rates, u8 rates_len)
5922 for (i = 0; i < rates_len; i++) {
5923 int rate = (rates[i] & 0x7f) * 5;
5925 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5926 struct ieee80211_rate *srate =
5927 &sband->bitrates[ridx];
5928 if (rate == srate->bitrate) {
5933 if (ridx == sband->n_bitrates)
5934 return 0; /* rate not found */
5940 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5941 u8 *rates, u8 rates_len,
5942 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5946 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5948 for (i = 0; i < rates_len; i++) {
5951 ridx = rates[i] / 8;
5952 rbit = BIT(rates[i] % 8);
5954 /* check validity */
5955 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5958 /* check availability */
5959 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5968 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5969 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5970 .len = NL80211_MAX_SUPP_RATES },
5971 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5972 .len = NL80211_MAX_SUPP_HT_RATES },
5975 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5976 struct genl_info *info)
5978 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5980 struct cfg80211_bitrate_mask mask;
5982 struct net_device *dev = info->user_ptr[1];
5983 struct nlattr *tx_rates;
5984 struct ieee80211_supported_band *sband;
5986 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5989 if (!rdev->ops->set_bitrate_mask)
5992 memset(&mask, 0, sizeof(mask));
5993 /* Default to all rates enabled */
5994 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5995 sband = rdev->wiphy.bands[i];
5996 mask.control[i].legacy =
5997 sband ? (1 << sband->n_bitrates) - 1 : 0;
5999 memcpy(mask.control[i].mcs,
6000 sband->ht_cap.mcs.rx_mask,
6001 sizeof(mask.control[i].mcs));
6003 memset(mask.control[i].mcs, 0,
6004 sizeof(mask.control[i].mcs));
6008 * The nested attribute uses enum nl80211_band as the index. This maps
6009 * directly to the enum ieee80211_band values used in cfg80211.
6011 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6012 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6014 enum ieee80211_band band = nla_type(tx_rates);
6015 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6017 sband = rdev->wiphy.bands[band];
6020 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6021 nla_len(tx_rates), nl80211_txattr_policy);
6022 if (tb[NL80211_TXRATE_LEGACY]) {
6023 mask.control[band].legacy = rateset_to_mask(
6025 nla_data(tb[NL80211_TXRATE_LEGACY]),
6026 nla_len(tb[NL80211_TXRATE_LEGACY]));
6027 if ((mask.control[band].legacy == 0) &&
6028 nla_len(tb[NL80211_TXRATE_LEGACY]))
6031 if (tb[NL80211_TXRATE_MCS]) {
6032 if (!ht_rateset_to_mask(
6034 nla_data(tb[NL80211_TXRATE_MCS]),
6035 nla_len(tb[NL80211_TXRATE_MCS]),
6036 mask.control[band].mcs))
6040 if (mask.control[band].legacy == 0) {
6041 /* don't allow empty legacy rates if HT
6042 * is not even supported. */
6043 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6046 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6047 if (mask.control[band].mcs[i])
6050 /* legacy and mcs rates may not be both empty */
6051 if (i == IEEE80211_HT_MCS_MASK_LEN)
6056 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
6059 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6062 struct wireless_dev *wdev = info->user_ptr[1];
6063 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6065 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6068 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6069 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6071 switch (wdev->iftype) {
6072 case NL80211_IFTYPE_STATION:
6073 case NL80211_IFTYPE_ADHOC:
6074 case NL80211_IFTYPE_P2P_CLIENT:
6075 case NL80211_IFTYPE_AP:
6076 case NL80211_IFTYPE_AP_VLAN:
6077 case NL80211_IFTYPE_MESH_POINT:
6078 case NL80211_IFTYPE_P2P_GO:
6079 case NL80211_IFTYPE_P2P_DEVICE:
6085 /* not much point in registering if we can't reply */
6086 if (!rdev->ops->mgmt_tx)
6089 return cfg80211_mlme_register_mgmt(wdev, info->snd_pid, frame_type,
6090 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6091 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6094 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6097 struct wireless_dev *wdev = info->user_ptr[1];
6098 struct ieee80211_channel *chan;
6099 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6100 bool channel_type_valid = false;
6105 struct sk_buff *msg = NULL;
6106 unsigned int wait = 0;
6107 bool offchan, no_cck, dont_wait_for_ack;
6109 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6111 if (!info->attrs[NL80211_ATTR_FRAME] ||
6112 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6115 if (!rdev->ops->mgmt_tx)
6118 switch (wdev->iftype) {
6119 case NL80211_IFTYPE_STATION:
6120 case NL80211_IFTYPE_ADHOC:
6121 case NL80211_IFTYPE_P2P_CLIENT:
6122 case NL80211_IFTYPE_AP:
6123 case NL80211_IFTYPE_AP_VLAN:
6124 case NL80211_IFTYPE_MESH_POINT:
6125 case NL80211_IFTYPE_P2P_GO:
6126 case NL80211_IFTYPE_P2P_DEVICE:
6132 if (info->attrs[NL80211_ATTR_DURATION]) {
6133 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6135 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6138 * We should wait on the channel for at least a minimum amount
6139 * of time (10ms) but no longer than the driver supports.
6141 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6142 wait > rdev->wiphy.max_remain_on_channel_duration)
6147 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6148 if (!nl80211_valid_channel_type(info, &channel_type))
6150 channel_type_valid = true;
6153 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6155 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6158 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6160 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6161 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6165 if (!dont_wait_for_ack) {
6166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6170 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6179 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
6180 channel_type_valid, wait,
6181 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6182 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6183 no_cck, dont_wait_for_ack, &cookie);
6188 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6189 goto nla_put_failure;
6191 genlmsg_end(msg, hdr);
6192 return genlmsg_reply(msg, info);
6204 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6206 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6207 struct wireless_dev *wdev = info->user_ptr[1];
6210 if (!info->attrs[NL80211_ATTR_COOKIE])
6213 if (!rdev->ops->mgmt_tx_cancel_wait)
6216 switch (wdev->iftype) {
6217 case NL80211_IFTYPE_STATION:
6218 case NL80211_IFTYPE_ADHOC:
6219 case NL80211_IFTYPE_P2P_CLIENT:
6220 case NL80211_IFTYPE_AP:
6221 case NL80211_IFTYPE_AP_VLAN:
6222 case NL80211_IFTYPE_P2P_GO:
6223 case NL80211_IFTYPE_P2P_DEVICE:
6229 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6231 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
6234 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6237 struct wireless_dev *wdev;
6238 struct net_device *dev = info->user_ptr[1];
6243 if (!info->attrs[NL80211_ATTR_PS_STATE])
6246 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6248 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6251 wdev = dev->ieee80211_ptr;
6253 if (!rdev->ops->set_power_mgmt)
6256 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6258 if (state == wdev->ps)
6261 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6268 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6270 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6271 enum nl80211_ps_state ps_state;
6272 struct wireless_dev *wdev;
6273 struct net_device *dev = info->user_ptr[1];
6274 struct sk_buff *msg;
6278 wdev = dev->ieee80211_ptr;
6280 if (!rdev->ops->set_power_mgmt)
6283 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6287 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6288 NL80211_CMD_GET_POWER_SAVE);
6295 ps_state = NL80211_PS_ENABLED;
6297 ps_state = NL80211_PS_DISABLED;
6299 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6300 goto nla_put_failure;
6302 genlmsg_end(msg, hdr);
6303 return genlmsg_reply(msg, info);
6312 static struct nla_policy
6313 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6314 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6315 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6316 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6317 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6318 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6319 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6322 static int nl80211_set_cqm_txe(struct genl_info *info,
6323 u32 rate, u32 pkts, u32 intvl)
6325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6326 struct wireless_dev *wdev;
6327 struct net_device *dev = info->user_ptr[1];
6329 if ((rate < 0 || rate > 100) ||
6330 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6333 wdev = dev->ieee80211_ptr;
6335 if (!rdev->ops->set_cqm_txe_config)
6338 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6339 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6342 return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
6346 static int nl80211_set_cqm_rssi(struct genl_info *info,
6347 s32 threshold, u32 hysteresis)
6349 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6350 struct wireless_dev *wdev;
6351 struct net_device *dev = info->user_ptr[1];
6356 wdev = dev->ieee80211_ptr;
6358 if (!rdev->ops->set_cqm_rssi_config)
6361 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6362 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6365 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6366 threshold, hysteresis);
6369 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6371 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6375 cqm = info->attrs[NL80211_ATTR_CQM];
6381 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6382 nl80211_attr_cqm_policy);
6386 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6387 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6390 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6391 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6392 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6393 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6394 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6395 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6396 u32 rate, pkts, intvl;
6397 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6398 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6399 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6400 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6408 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6411 struct net_device *dev = info->user_ptr[1];
6412 struct mesh_config cfg;
6413 struct mesh_setup setup;
6416 /* start with default */
6417 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6418 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6420 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6421 /* and parse parameters if given */
6422 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6427 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6428 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6431 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6432 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6434 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6435 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6436 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6439 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6440 /* parse additional setup parameters if given */
6441 err = nl80211_parse_mesh_setup(info, &setup);
6446 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6447 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6449 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6450 !nl80211_valid_channel_type(info, &channel_type))
6453 setup.channel = rdev_freq_to_chan(rdev,
6454 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6458 setup.channel_type = channel_type;
6460 /* cfg80211_join_mesh() will sort it out */
6461 setup.channel = NULL;
6464 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6467 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6470 struct net_device *dev = info->user_ptr[1];
6472 return cfg80211_leave_mesh(rdev, dev);
6476 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6479 struct sk_buff *msg;
6482 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6485 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6489 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6490 NL80211_CMD_GET_WOWLAN);
6492 goto nla_put_failure;
6495 struct nlattr *nl_wowlan;
6497 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6499 goto nla_put_failure;
6501 if ((rdev->wowlan->any &&
6502 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6503 (rdev->wowlan->disconnect &&
6504 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6505 (rdev->wowlan->magic_pkt &&
6506 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6507 (rdev->wowlan->gtk_rekey_failure &&
6508 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6509 (rdev->wowlan->eap_identity_req &&
6510 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6511 (rdev->wowlan->four_way_handshake &&
6512 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6513 (rdev->wowlan->rfkill_release &&
6514 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6515 goto nla_put_failure;
6516 if (rdev->wowlan->n_patterns) {
6517 struct nlattr *nl_pats, *nl_pat;
6520 nl_pats = nla_nest_start(msg,
6521 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6523 goto nla_put_failure;
6525 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6526 nl_pat = nla_nest_start(msg, i + 1);
6528 goto nla_put_failure;
6529 pat_len = rdev->wowlan->patterns[i].pattern_len;
6530 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6531 DIV_ROUND_UP(pat_len, 8),
6532 rdev->wowlan->patterns[i].mask) ||
6533 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6535 rdev->wowlan->patterns[i].pattern))
6536 goto nla_put_failure;
6537 nla_nest_end(msg, nl_pat);
6539 nla_nest_end(msg, nl_pats);
6542 nla_nest_end(msg, nl_wowlan);
6545 genlmsg_end(msg, hdr);
6546 return genlmsg_reply(msg, info);
6553 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6556 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6557 struct cfg80211_wowlan new_triggers = {};
6558 struct cfg80211_wowlan *ntrig;
6559 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6561 bool prev_enabled = rdev->wowlan;
6563 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6566 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6567 cfg80211_rdev_free_wowlan(rdev);
6568 rdev->wowlan = NULL;
6572 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6573 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6574 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6575 nl80211_wowlan_policy);
6579 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6580 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6582 new_triggers.any = true;
6585 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6586 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6588 new_triggers.disconnect = true;
6591 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6592 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6594 new_triggers.magic_pkt = true;
6597 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6600 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6601 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6603 new_triggers.gtk_rekey_failure = true;
6606 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6607 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6609 new_triggers.eap_identity_req = true;
6612 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6613 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6615 new_triggers.four_way_handshake = true;
6618 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6619 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6621 new_triggers.rfkill_release = true;
6624 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6627 int rem, pat_len, mask_len;
6628 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6630 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6633 if (n_patterns > wowlan->n_patterns)
6636 new_triggers.patterns = kcalloc(n_patterns,
6637 sizeof(new_triggers.patterns[0]),
6639 if (!new_triggers.patterns)
6642 new_triggers.n_patterns = n_patterns;
6645 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6647 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6648 nla_data(pat), nla_len(pat), NULL);
6650 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6651 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6653 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6654 mask_len = DIV_ROUND_UP(pat_len, 8);
6655 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6658 if (pat_len > wowlan->pattern_max_len ||
6659 pat_len < wowlan->pattern_min_len)
6662 new_triggers.patterns[i].mask =
6663 kmalloc(mask_len + pat_len, GFP_KERNEL);
6664 if (!new_triggers.patterns[i].mask) {
6668 new_triggers.patterns[i].pattern =
6669 new_triggers.patterns[i].mask + mask_len;
6670 memcpy(new_triggers.patterns[i].mask,
6671 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6673 new_triggers.patterns[i].pattern_len = pat_len;
6674 memcpy(new_triggers.patterns[i].pattern,
6675 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6681 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6686 cfg80211_rdev_free_wowlan(rdev);
6687 rdev->wowlan = ntrig;
6690 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6691 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6695 for (i = 0; i < new_triggers.n_patterns; i++)
6696 kfree(new_triggers.patterns[i].mask);
6697 kfree(new_triggers.patterns);
6702 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6705 struct net_device *dev = info->user_ptr[1];
6706 struct wireless_dev *wdev = dev->ieee80211_ptr;
6707 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6708 struct cfg80211_gtk_rekey_data rekey_data;
6711 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6714 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6715 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6716 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6717 nl80211_rekey_policy);
6721 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6723 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6725 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6728 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6730 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6732 memcpy(rekey_data.replay_ctr,
6733 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6734 NL80211_REPLAY_CTR_LEN);
6737 if (!wdev->current_bss) {
6742 if (!rdev->ops->set_rekey_data) {
6747 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6753 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6754 struct genl_info *info)
6756 struct net_device *dev = info->user_ptr[1];
6757 struct wireless_dev *wdev = dev->ieee80211_ptr;
6759 if (wdev->iftype != NL80211_IFTYPE_AP &&
6760 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6763 if (wdev->ap_unexpected_nlpid)
6766 wdev->ap_unexpected_nlpid = info->snd_pid;
6770 static int nl80211_probe_client(struct sk_buff *skb,
6771 struct genl_info *info)
6773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6774 struct net_device *dev = info->user_ptr[1];
6775 struct wireless_dev *wdev = dev->ieee80211_ptr;
6776 struct sk_buff *msg;
6782 if (wdev->iftype != NL80211_IFTYPE_AP &&
6783 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6786 if (!info->attrs[NL80211_ATTR_MAC])
6789 if (!rdev->ops->probe_client)
6792 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6796 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6797 NL80211_CMD_PROBE_CLIENT);
6804 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6806 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6810 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6811 goto nla_put_failure;
6813 genlmsg_end(msg, hdr);
6815 return genlmsg_reply(msg, info);
6824 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6828 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6831 if (rdev->ap_beacons_nlpid)
6834 rdev->ap_beacons_nlpid = info->snd_pid;
6839 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
6841 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6842 struct wireless_dev *wdev = info->user_ptr[1];
6845 if (!rdev->ops->start_p2p_device)
6848 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6851 if (wdev->p2p_started)
6854 mutex_lock(&rdev->devlist_mtx);
6855 err = cfg80211_can_add_interface(rdev, wdev->iftype);
6856 mutex_unlock(&rdev->devlist_mtx);
6860 err = rdev->ops->start_p2p_device(&rdev->wiphy, wdev);
6864 wdev->p2p_started = true;
6865 mutex_lock(&rdev->devlist_mtx);
6867 mutex_unlock(&rdev->devlist_mtx);
6872 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
6874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6875 struct wireless_dev *wdev = info->user_ptr[1];
6877 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6880 if (!rdev->ops->stop_p2p_device)
6883 if (!wdev->p2p_started)
6886 rdev->ops->stop_p2p_device(&rdev->wiphy, wdev);
6887 wdev->p2p_started = false;
6889 mutex_lock(&rdev->devlist_mtx);
6891 mutex_unlock(&rdev->devlist_mtx);
6893 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
6894 rdev->scan_req->aborted = true;
6895 ___cfg80211_scan_done(rdev, true);
6901 #define NL80211_FLAG_NEED_WIPHY 0x01
6902 #define NL80211_FLAG_NEED_NETDEV 0x02
6903 #define NL80211_FLAG_NEED_RTNL 0x04
6904 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6905 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6906 NL80211_FLAG_CHECK_NETDEV_UP)
6907 #define NL80211_FLAG_NEED_WDEV 0x10
6908 /* If a netdev is associated, it must be UP, P2P must be started */
6909 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6910 NL80211_FLAG_CHECK_NETDEV_UP)
6912 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6913 struct genl_info *info)
6915 struct cfg80211_registered_device *rdev;
6916 struct wireless_dev *wdev;
6917 struct net_device *dev;
6918 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6923 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6924 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6928 return PTR_ERR(rdev);
6930 info->user_ptr[0] = rdev;
6931 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
6932 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6933 mutex_lock(&cfg80211_mutex);
6934 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6937 mutex_unlock(&cfg80211_mutex);
6940 return PTR_ERR(wdev);
6944 rdev = wiphy_to_dev(wdev->wiphy);
6946 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6948 mutex_unlock(&cfg80211_mutex);
6954 info->user_ptr[1] = dev;
6956 info->user_ptr[1] = wdev;
6960 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6961 !netif_running(dev)) {
6962 mutex_unlock(&cfg80211_mutex);
6969 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
6970 if (!wdev->p2p_started) {
6971 mutex_unlock(&cfg80211_mutex);
6978 cfg80211_lock_rdev(rdev);
6980 mutex_unlock(&cfg80211_mutex);
6982 info->user_ptr[0] = rdev;
6988 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6989 struct genl_info *info)
6991 if (info->user_ptr[0])
6992 cfg80211_unlock_rdev(info->user_ptr[0]);
6993 if (info->user_ptr[1]) {
6994 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6995 struct wireless_dev *wdev = info->user_ptr[1];
6998 dev_put(wdev->netdev);
7000 dev_put(info->user_ptr[1]);
7003 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7007 static struct genl_ops nl80211_ops[] = {
7009 .cmd = NL80211_CMD_GET_WIPHY,
7010 .doit = nl80211_get_wiphy,
7011 .dumpit = nl80211_dump_wiphy,
7012 .policy = nl80211_policy,
7013 /* can be retrieved by unprivileged users */
7014 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7017 .cmd = NL80211_CMD_SET_WIPHY,
7018 .doit = nl80211_set_wiphy,
7019 .policy = nl80211_policy,
7020 .flags = GENL_ADMIN_PERM,
7021 .internal_flags = NL80211_FLAG_NEED_RTNL,
7024 .cmd = NL80211_CMD_GET_INTERFACE,
7025 .doit = nl80211_get_interface,
7026 .dumpit = nl80211_dump_interface,
7027 .policy = nl80211_policy,
7028 /* can be retrieved by unprivileged users */
7029 .internal_flags = NL80211_FLAG_NEED_WDEV,
7032 .cmd = NL80211_CMD_SET_INTERFACE,
7033 .doit = nl80211_set_interface,
7034 .policy = nl80211_policy,
7035 .flags = GENL_ADMIN_PERM,
7036 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7037 NL80211_FLAG_NEED_RTNL,
7040 .cmd = NL80211_CMD_NEW_INTERFACE,
7041 .doit = nl80211_new_interface,
7042 .policy = nl80211_policy,
7043 .flags = GENL_ADMIN_PERM,
7044 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7045 NL80211_FLAG_NEED_RTNL,
7048 .cmd = NL80211_CMD_DEL_INTERFACE,
7049 .doit = nl80211_del_interface,
7050 .policy = nl80211_policy,
7051 .flags = GENL_ADMIN_PERM,
7052 .internal_flags = NL80211_FLAG_NEED_WDEV |
7053 NL80211_FLAG_NEED_RTNL,
7056 .cmd = NL80211_CMD_GET_KEY,
7057 .doit = nl80211_get_key,
7058 .policy = nl80211_policy,
7059 .flags = GENL_ADMIN_PERM,
7060 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7061 NL80211_FLAG_NEED_RTNL,
7064 .cmd = NL80211_CMD_SET_KEY,
7065 .doit = nl80211_set_key,
7066 .policy = nl80211_policy,
7067 .flags = GENL_ADMIN_PERM,
7068 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7069 NL80211_FLAG_NEED_RTNL,
7072 .cmd = NL80211_CMD_NEW_KEY,
7073 .doit = nl80211_new_key,
7074 .policy = nl80211_policy,
7075 .flags = GENL_ADMIN_PERM,
7076 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7077 NL80211_FLAG_NEED_RTNL,
7080 .cmd = NL80211_CMD_DEL_KEY,
7081 .doit = nl80211_del_key,
7082 .policy = nl80211_policy,
7083 .flags = GENL_ADMIN_PERM,
7084 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7085 NL80211_FLAG_NEED_RTNL,
7088 .cmd = NL80211_CMD_SET_BEACON,
7089 .policy = nl80211_policy,
7090 .flags = GENL_ADMIN_PERM,
7091 .doit = nl80211_set_beacon,
7092 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7093 NL80211_FLAG_NEED_RTNL,
7096 .cmd = NL80211_CMD_START_AP,
7097 .policy = nl80211_policy,
7098 .flags = GENL_ADMIN_PERM,
7099 .doit = nl80211_start_ap,
7100 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7101 NL80211_FLAG_NEED_RTNL,
7104 .cmd = NL80211_CMD_STOP_AP,
7105 .policy = nl80211_policy,
7106 .flags = GENL_ADMIN_PERM,
7107 .doit = nl80211_stop_ap,
7108 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7109 NL80211_FLAG_NEED_RTNL,
7112 .cmd = NL80211_CMD_GET_STATION,
7113 .doit = nl80211_get_station,
7114 .dumpit = nl80211_dump_station,
7115 .policy = nl80211_policy,
7116 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7117 NL80211_FLAG_NEED_RTNL,
7120 .cmd = NL80211_CMD_SET_STATION,
7121 .doit = nl80211_set_station,
7122 .policy = nl80211_policy,
7123 .flags = GENL_ADMIN_PERM,
7124 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7125 NL80211_FLAG_NEED_RTNL,
7128 .cmd = NL80211_CMD_NEW_STATION,
7129 .doit = nl80211_new_station,
7130 .policy = nl80211_policy,
7131 .flags = GENL_ADMIN_PERM,
7132 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7133 NL80211_FLAG_NEED_RTNL,
7136 .cmd = NL80211_CMD_DEL_STATION,
7137 .doit = nl80211_del_station,
7138 .policy = nl80211_policy,
7139 .flags = GENL_ADMIN_PERM,
7140 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7141 NL80211_FLAG_NEED_RTNL,
7144 .cmd = NL80211_CMD_GET_MPATH,
7145 .doit = nl80211_get_mpath,
7146 .dumpit = nl80211_dump_mpath,
7147 .policy = nl80211_policy,
7148 .flags = GENL_ADMIN_PERM,
7149 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7150 NL80211_FLAG_NEED_RTNL,
7153 .cmd = NL80211_CMD_SET_MPATH,
7154 .doit = nl80211_set_mpath,
7155 .policy = nl80211_policy,
7156 .flags = GENL_ADMIN_PERM,
7157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7158 NL80211_FLAG_NEED_RTNL,
7161 .cmd = NL80211_CMD_NEW_MPATH,
7162 .doit = nl80211_new_mpath,
7163 .policy = nl80211_policy,
7164 .flags = GENL_ADMIN_PERM,
7165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7166 NL80211_FLAG_NEED_RTNL,
7169 .cmd = NL80211_CMD_DEL_MPATH,
7170 .doit = nl80211_del_mpath,
7171 .policy = nl80211_policy,
7172 .flags = GENL_ADMIN_PERM,
7173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7174 NL80211_FLAG_NEED_RTNL,
7177 .cmd = NL80211_CMD_SET_BSS,
7178 .doit = nl80211_set_bss,
7179 .policy = nl80211_policy,
7180 .flags = GENL_ADMIN_PERM,
7181 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7182 NL80211_FLAG_NEED_RTNL,
7185 .cmd = NL80211_CMD_GET_REG,
7186 .doit = nl80211_get_reg,
7187 .policy = nl80211_policy,
7188 /* can be retrieved by unprivileged users */
7191 .cmd = NL80211_CMD_SET_REG,
7192 .doit = nl80211_set_reg,
7193 .policy = nl80211_policy,
7194 .flags = GENL_ADMIN_PERM,
7197 .cmd = NL80211_CMD_REQ_SET_REG,
7198 .doit = nl80211_req_set_reg,
7199 .policy = nl80211_policy,
7200 .flags = GENL_ADMIN_PERM,
7203 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7204 .doit = nl80211_get_mesh_config,
7205 .policy = nl80211_policy,
7206 /* can be retrieved by unprivileged users */
7207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7208 NL80211_FLAG_NEED_RTNL,
7211 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7212 .doit = nl80211_update_mesh_config,
7213 .policy = nl80211_policy,
7214 .flags = GENL_ADMIN_PERM,
7215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7216 NL80211_FLAG_NEED_RTNL,
7219 .cmd = NL80211_CMD_TRIGGER_SCAN,
7220 .doit = nl80211_trigger_scan,
7221 .policy = nl80211_policy,
7222 .flags = GENL_ADMIN_PERM,
7223 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7224 NL80211_FLAG_NEED_RTNL,
7227 .cmd = NL80211_CMD_GET_SCAN,
7228 .policy = nl80211_policy,
7229 .dumpit = nl80211_dump_scan,
7232 .cmd = NL80211_CMD_START_SCHED_SCAN,
7233 .doit = nl80211_start_sched_scan,
7234 .policy = nl80211_policy,
7235 .flags = GENL_ADMIN_PERM,
7236 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7237 NL80211_FLAG_NEED_RTNL,
7240 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7241 .doit = nl80211_stop_sched_scan,
7242 .policy = nl80211_policy,
7243 .flags = GENL_ADMIN_PERM,
7244 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7245 NL80211_FLAG_NEED_RTNL,
7248 .cmd = NL80211_CMD_AUTHENTICATE,
7249 .doit = nl80211_authenticate,
7250 .policy = nl80211_policy,
7251 .flags = GENL_ADMIN_PERM,
7252 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7253 NL80211_FLAG_NEED_RTNL,
7256 .cmd = NL80211_CMD_ASSOCIATE,
7257 .doit = nl80211_associate,
7258 .policy = nl80211_policy,
7259 .flags = GENL_ADMIN_PERM,
7260 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7261 NL80211_FLAG_NEED_RTNL,
7264 .cmd = NL80211_CMD_DEAUTHENTICATE,
7265 .doit = nl80211_deauthenticate,
7266 .policy = nl80211_policy,
7267 .flags = GENL_ADMIN_PERM,
7268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7269 NL80211_FLAG_NEED_RTNL,
7272 .cmd = NL80211_CMD_DISASSOCIATE,
7273 .doit = nl80211_disassociate,
7274 .policy = nl80211_policy,
7275 .flags = GENL_ADMIN_PERM,
7276 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7277 NL80211_FLAG_NEED_RTNL,
7280 .cmd = NL80211_CMD_JOIN_IBSS,
7281 .doit = nl80211_join_ibss,
7282 .policy = nl80211_policy,
7283 .flags = GENL_ADMIN_PERM,
7284 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7285 NL80211_FLAG_NEED_RTNL,
7288 .cmd = NL80211_CMD_LEAVE_IBSS,
7289 .doit = nl80211_leave_ibss,
7290 .policy = nl80211_policy,
7291 .flags = GENL_ADMIN_PERM,
7292 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7293 NL80211_FLAG_NEED_RTNL,
7295 #ifdef CONFIG_NL80211_TESTMODE
7297 .cmd = NL80211_CMD_TESTMODE,
7298 .doit = nl80211_testmode_do,
7299 .dumpit = nl80211_testmode_dump,
7300 .policy = nl80211_policy,
7301 .flags = GENL_ADMIN_PERM,
7302 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7303 NL80211_FLAG_NEED_RTNL,
7307 .cmd = NL80211_CMD_CONNECT,
7308 .doit = nl80211_connect,
7309 .policy = nl80211_policy,
7310 .flags = GENL_ADMIN_PERM,
7311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7312 NL80211_FLAG_NEED_RTNL,
7315 .cmd = NL80211_CMD_DISCONNECT,
7316 .doit = nl80211_disconnect,
7317 .policy = nl80211_policy,
7318 .flags = GENL_ADMIN_PERM,
7319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7320 NL80211_FLAG_NEED_RTNL,
7323 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7324 .doit = nl80211_wiphy_netns,
7325 .policy = nl80211_policy,
7326 .flags = GENL_ADMIN_PERM,
7327 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7328 NL80211_FLAG_NEED_RTNL,
7331 .cmd = NL80211_CMD_GET_SURVEY,
7332 .policy = nl80211_policy,
7333 .dumpit = nl80211_dump_survey,
7336 .cmd = NL80211_CMD_SET_PMKSA,
7337 .doit = nl80211_setdel_pmksa,
7338 .policy = nl80211_policy,
7339 .flags = GENL_ADMIN_PERM,
7340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7341 NL80211_FLAG_NEED_RTNL,
7344 .cmd = NL80211_CMD_DEL_PMKSA,
7345 .doit = nl80211_setdel_pmksa,
7346 .policy = nl80211_policy,
7347 .flags = GENL_ADMIN_PERM,
7348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7349 NL80211_FLAG_NEED_RTNL,
7352 .cmd = NL80211_CMD_FLUSH_PMKSA,
7353 .doit = nl80211_flush_pmksa,
7354 .policy = nl80211_policy,
7355 .flags = GENL_ADMIN_PERM,
7356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7357 NL80211_FLAG_NEED_RTNL,
7360 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7361 .doit = nl80211_remain_on_channel,
7362 .policy = nl80211_policy,
7363 .flags = GENL_ADMIN_PERM,
7364 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7365 NL80211_FLAG_NEED_RTNL,
7368 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7369 .doit = nl80211_cancel_remain_on_channel,
7370 .policy = nl80211_policy,
7371 .flags = GENL_ADMIN_PERM,
7372 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7373 NL80211_FLAG_NEED_RTNL,
7376 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7377 .doit = nl80211_set_tx_bitrate_mask,
7378 .policy = nl80211_policy,
7379 .flags = GENL_ADMIN_PERM,
7380 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7381 NL80211_FLAG_NEED_RTNL,
7384 .cmd = NL80211_CMD_REGISTER_FRAME,
7385 .doit = nl80211_register_mgmt,
7386 .policy = nl80211_policy,
7387 .flags = GENL_ADMIN_PERM,
7388 .internal_flags = NL80211_FLAG_NEED_WDEV |
7389 NL80211_FLAG_NEED_RTNL,
7392 .cmd = NL80211_CMD_FRAME,
7393 .doit = nl80211_tx_mgmt,
7394 .policy = nl80211_policy,
7395 .flags = GENL_ADMIN_PERM,
7396 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7397 NL80211_FLAG_NEED_RTNL,
7400 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7401 .doit = nl80211_tx_mgmt_cancel_wait,
7402 .policy = nl80211_policy,
7403 .flags = GENL_ADMIN_PERM,
7404 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7405 NL80211_FLAG_NEED_RTNL,
7408 .cmd = NL80211_CMD_SET_POWER_SAVE,
7409 .doit = nl80211_set_power_save,
7410 .policy = nl80211_policy,
7411 .flags = GENL_ADMIN_PERM,
7412 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7413 NL80211_FLAG_NEED_RTNL,
7416 .cmd = NL80211_CMD_GET_POWER_SAVE,
7417 .doit = nl80211_get_power_save,
7418 .policy = nl80211_policy,
7419 /* can be retrieved by unprivileged users */
7420 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7421 NL80211_FLAG_NEED_RTNL,
7424 .cmd = NL80211_CMD_SET_CQM,
7425 .doit = nl80211_set_cqm,
7426 .policy = nl80211_policy,
7427 .flags = GENL_ADMIN_PERM,
7428 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7429 NL80211_FLAG_NEED_RTNL,
7432 .cmd = NL80211_CMD_SET_CHANNEL,
7433 .doit = nl80211_set_channel,
7434 .policy = nl80211_policy,
7435 .flags = GENL_ADMIN_PERM,
7436 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7437 NL80211_FLAG_NEED_RTNL,
7440 .cmd = NL80211_CMD_SET_WDS_PEER,
7441 .doit = nl80211_set_wds_peer,
7442 .policy = nl80211_policy,
7443 .flags = GENL_ADMIN_PERM,
7444 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7445 NL80211_FLAG_NEED_RTNL,
7448 .cmd = NL80211_CMD_JOIN_MESH,
7449 .doit = nl80211_join_mesh,
7450 .policy = nl80211_policy,
7451 .flags = GENL_ADMIN_PERM,
7452 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7453 NL80211_FLAG_NEED_RTNL,
7456 .cmd = NL80211_CMD_LEAVE_MESH,
7457 .doit = nl80211_leave_mesh,
7458 .policy = nl80211_policy,
7459 .flags = GENL_ADMIN_PERM,
7460 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7461 NL80211_FLAG_NEED_RTNL,
7465 .cmd = NL80211_CMD_GET_WOWLAN,
7466 .doit = nl80211_get_wowlan,
7467 .policy = nl80211_policy,
7468 /* can be retrieved by unprivileged users */
7469 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7470 NL80211_FLAG_NEED_RTNL,
7473 .cmd = NL80211_CMD_SET_WOWLAN,
7474 .doit = nl80211_set_wowlan,
7475 .policy = nl80211_policy,
7476 .flags = GENL_ADMIN_PERM,
7477 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7478 NL80211_FLAG_NEED_RTNL,
7482 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7483 .doit = nl80211_set_rekey_data,
7484 .policy = nl80211_policy,
7485 .flags = GENL_ADMIN_PERM,
7486 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7487 NL80211_FLAG_NEED_RTNL,
7490 .cmd = NL80211_CMD_TDLS_MGMT,
7491 .doit = nl80211_tdls_mgmt,
7492 .policy = nl80211_policy,
7493 .flags = GENL_ADMIN_PERM,
7494 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7495 NL80211_FLAG_NEED_RTNL,
7498 .cmd = NL80211_CMD_TDLS_OPER,
7499 .doit = nl80211_tdls_oper,
7500 .policy = nl80211_policy,
7501 .flags = GENL_ADMIN_PERM,
7502 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7503 NL80211_FLAG_NEED_RTNL,
7506 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7507 .doit = nl80211_register_unexpected_frame,
7508 .policy = nl80211_policy,
7509 .flags = GENL_ADMIN_PERM,
7510 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7511 NL80211_FLAG_NEED_RTNL,
7514 .cmd = NL80211_CMD_PROBE_CLIENT,
7515 .doit = nl80211_probe_client,
7516 .policy = nl80211_policy,
7517 .flags = GENL_ADMIN_PERM,
7518 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7519 NL80211_FLAG_NEED_RTNL,
7522 .cmd = NL80211_CMD_REGISTER_BEACONS,
7523 .doit = nl80211_register_beacons,
7524 .policy = nl80211_policy,
7525 .flags = GENL_ADMIN_PERM,
7526 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7527 NL80211_FLAG_NEED_RTNL,
7530 .cmd = NL80211_CMD_SET_NOACK_MAP,
7531 .doit = nl80211_set_noack_map,
7532 .policy = nl80211_policy,
7533 .flags = GENL_ADMIN_PERM,
7534 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7535 NL80211_FLAG_NEED_RTNL,
7538 .cmd = NL80211_CMD_START_P2P_DEVICE,
7539 .doit = nl80211_start_p2p_device,
7540 .policy = nl80211_policy,
7541 .flags = GENL_ADMIN_PERM,
7542 .internal_flags = NL80211_FLAG_NEED_WDEV |
7543 NL80211_FLAG_NEED_RTNL,
7546 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7547 .doit = nl80211_stop_p2p_device,
7548 .policy = nl80211_policy,
7549 .flags = GENL_ADMIN_PERM,
7550 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7551 NL80211_FLAG_NEED_RTNL,
7555 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7559 /* multicast groups */
7560 static struct genl_multicast_group nl80211_config_mcgrp = {
7563 static struct genl_multicast_group nl80211_scan_mcgrp = {
7566 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7567 .name = "regulatory",
7570 /* notification functions */
7572 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7574 struct sk_buff *msg;
7576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7580 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7585 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7586 nl80211_config_mcgrp.id, GFP_KERNEL);
7589 static int nl80211_add_scan_req(struct sk_buff *msg,
7590 struct cfg80211_registered_device *rdev)
7592 struct cfg80211_scan_request *req = rdev->scan_req;
7593 struct nlattr *nest;
7596 ASSERT_RDEV_LOCK(rdev);
7601 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7603 goto nla_put_failure;
7604 for (i = 0; i < req->n_ssids; i++) {
7605 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7606 goto nla_put_failure;
7608 nla_nest_end(msg, nest);
7610 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7612 goto nla_put_failure;
7613 for (i = 0; i < req->n_channels; i++) {
7614 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7615 goto nla_put_failure;
7617 nla_nest_end(msg, nest);
7620 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7621 goto nla_put_failure;
7628 static int nl80211_send_scan_msg(struct sk_buff *msg,
7629 struct cfg80211_registered_device *rdev,
7630 struct wireless_dev *wdev,
7631 u32 pid, u32 seq, int flags,
7636 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7640 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7641 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7642 wdev->netdev->ifindex)) ||
7643 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
7644 goto nla_put_failure;
7646 /* ignore errors and send incomplete event anyway */
7647 nl80211_add_scan_req(msg, rdev);
7649 return genlmsg_end(msg, hdr);
7652 genlmsg_cancel(msg, hdr);
7657 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7658 struct cfg80211_registered_device *rdev,
7659 struct net_device *netdev,
7660 u32 pid, u32 seq, int flags, u32 cmd)
7664 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7668 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7669 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7670 goto nla_put_failure;
7672 return genlmsg_end(msg, hdr);
7675 genlmsg_cancel(msg, hdr);
7679 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7680 struct wireless_dev *wdev)
7682 struct sk_buff *msg;
7684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7688 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7689 NL80211_CMD_TRIGGER_SCAN) < 0) {
7694 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7695 nl80211_scan_mcgrp.id, GFP_KERNEL);
7698 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7699 struct wireless_dev *wdev)
7701 struct sk_buff *msg;
7703 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7707 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7708 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7713 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7714 nl80211_scan_mcgrp.id, GFP_KERNEL);
7717 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7718 struct wireless_dev *wdev)
7720 struct sk_buff *msg;
7722 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7726 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7727 NL80211_CMD_SCAN_ABORTED) < 0) {
7732 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7733 nl80211_scan_mcgrp.id, GFP_KERNEL);
7736 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7737 struct net_device *netdev)
7739 struct sk_buff *msg;
7741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7745 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7746 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7751 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7752 nl80211_scan_mcgrp.id, GFP_KERNEL);
7755 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7756 struct net_device *netdev, u32 cmd)
7758 struct sk_buff *msg;
7760 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7764 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7769 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7770 nl80211_scan_mcgrp.id, GFP_KERNEL);
7774 * This can happen on global regulatory changes or device specific settings
7775 * based on custom world regulatory domains.
7777 void nl80211_send_reg_change_event(struct regulatory_request *request)
7779 struct sk_buff *msg;
7782 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7786 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7792 /* Userspace can always count this one always being set */
7793 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7794 goto nla_put_failure;
7796 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7797 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7798 NL80211_REGDOM_TYPE_WORLD))
7799 goto nla_put_failure;
7800 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7801 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7802 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7803 goto nla_put_failure;
7804 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7805 request->intersect) {
7806 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7807 NL80211_REGDOM_TYPE_INTERSECTION))
7808 goto nla_put_failure;
7810 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7811 NL80211_REGDOM_TYPE_COUNTRY) ||
7812 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7814 goto nla_put_failure;
7817 if (wiphy_idx_valid(request->wiphy_idx) &&
7818 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7819 goto nla_put_failure;
7821 genlmsg_end(msg, hdr);
7824 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7831 genlmsg_cancel(msg, hdr);
7835 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7836 struct net_device *netdev,
7837 const u8 *buf, size_t len,
7838 enum nl80211_commands cmd, gfp_t gfp)
7840 struct sk_buff *msg;
7843 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7847 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7853 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7854 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7855 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7856 goto nla_put_failure;
7858 genlmsg_end(msg, hdr);
7860 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7861 nl80211_mlme_mcgrp.id, gfp);
7865 genlmsg_cancel(msg, hdr);
7869 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7870 struct net_device *netdev, const u8 *buf,
7871 size_t len, gfp_t gfp)
7873 nl80211_send_mlme_event(rdev, netdev, buf, len,
7874 NL80211_CMD_AUTHENTICATE, gfp);
7877 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7878 struct net_device *netdev, const u8 *buf,
7879 size_t len, gfp_t gfp)
7881 nl80211_send_mlme_event(rdev, netdev, buf, len,
7882 NL80211_CMD_ASSOCIATE, gfp);
7885 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7886 struct net_device *netdev, const u8 *buf,
7887 size_t len, gfp_t gfp)
7889 nl80211_send_mlme_event(rdev, netdev, buf, len,
7890 NL80211_CMD_DEAUTHENTICATE, gfp);
7893 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7894 struct net_device *netdev, const u8 *buf,
7895 size_t len, gfp_t gfp)
7897 nl80211_send_mlme_event(rdev, netdev, buf, len,
7898 NL80211_CMD_DISASSOCIATE, gfp);
7901 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7902 struct net_device *netdev, const u8 *buf,
7903 size_t len, gfp_t gfp)
7905 nl80211_send_mlme_event(rdev, netdev, buf, len,
7906 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7909 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7910 struct net_device *netdev, const u8 *buf,
7911 size_t len, gfp_t gfp)
7913 nl80211_send_mlme_event(rdev, netdev, buf, len,
7914 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7917 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7918 struct net_device *netdev, int cmd,
7919 const u8 *addr, gfp_t gfp)
7921 struct sk_buff *msg;
7924 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7928 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7934 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7935 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7936 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7937 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7938 goto nla_put_failure;
7940 genlmsg_end(msg, hdr);
7942 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7943 nl80211_mlme_mcgrp.id, gfp);
7947 genlmsg_cancel(msg, hdr);
7951 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7952 struct net_device *netdev, const u8 *addr,
7955 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7959 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7960 struct net_device *netdev, const u8 *addr,
7963 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7967 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7968 struct net_device *netdev, const u8 *bssid,
7969 const u8 *req_ie, size_t req_ie_len,
7970 const u8 *resp_ie, size_t resp_ie_len,
7971 u16 status, gfp_t gfp)
7973 struct sk_buff *msg;
7976 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7980 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7986 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7987 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7988 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7989 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7991 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7993 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7994 goto nla_put_failure;
7996 genlmsg_end(msg, hdr);
7998 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7999 nl80211_mlme_mcgrp.id, gfp);
8003 genlmsg_cancel(msg, hdr);
8008 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8009 struct net_device *netdev, const u8 *bssid,
8010 const u8 *req_ie, size_t req_ie_len,
8011 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8013 struct sk_buff *msg;
8016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8027 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8028 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8030 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8032 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8033 goto nla_put_failure;
8035 genlmsg_end(msg, hdr);
8037 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8038 nl80211_mlme_mcgrp.id, gfp);
8042 genlmsg_cancel(msg, hdr);
8047 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8048 struct net_device *netdev, u16 reason,
8049 const u8 *ie, size_t ie_len, bool from_ap)
8051 struct sk_buff *msg;
8054 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8058 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8064 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8065 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8066 (from_ap && reason &&
8067 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8069 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8070 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8071 goto nla_put_failure;
8073 genlmsg_end(msg, hdr);
8075 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8076 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8080 genlmsg_cancel(msg, hdr);
8085 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8086 struct net_device *netdev, const u8 *bssid,
8089 struct sk_buff *msg;
8092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8102 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8103 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8104 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8105 goto nla_put_failure;
8107 genlmsg_end(msg, hdr);
8109 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8110 nl80211_mlme_mcgrp.id, gfp);
8114 genlmsg_cancel(msg, hdr);
8118 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8119 struct net_device *netdev,
8120 const u8 *macaddr, const u8* ie, u8 ie_len,
8123 struct sk_buff *msg;
8126 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8130 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8136 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8137 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8138 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8140 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8141 goto nla_put_failure;
8143 genlmsg_end(msg, hdr);
8145 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8146 nl80211_mlme_mcgrp.id, gfp);
8150 genlmsg_cancel(msg, hdr);
8154 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8155 struct net_device *netdev, const u8 *addr,
8156 enum nl80211_key_type key_type, int key_id,
8157 const u8 *tsc, gfp_t gfp)
8159 struct sk_buff *msg;
8162 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8166 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8172 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8173 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8174 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8175 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8177 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8178 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8179 goto nla_put_failure;
8181 genlmsg_end(msg, hdr);
8183 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8184 nl80211_mlme_mcgrp.id, gfp);
8188 genlmsg_cancel(msg, hdr);
8192 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8193 struct ieee80211_channel *channel_before,
8194 struct ieee80211_channel *channel_after)
8196 struct sk_buff *msg;
8198 struct nlattr *nl_freq;
8200 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8204 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8211 * Since we are applying the beacon hint to a wiphy we know its
8212 * wiphy_idx is valid
8214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8215 goto nla_put_failure;
8218 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8220 goto nla_put_failure;
8221 if (nl80211_msg_put_channel(msg, channel_before))
8222 goto nla_put_failure;
8223 nla_nest_end(msg, nl_freq);
8226 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8228 goto nla_put_failure;
8229 if (nl80211_msg_put_channel(msg, channel_after))
8230 goto nla_put_failure;
8231 nla_nest_end(msg, nl_freq);
8233 genlmsg_end(msg, hdr);
8236 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8243 genlmsg_cancel(msg, hdr);
8247 static void nl80211_send_remain_on_chan_event(
8248 int cmd, struct cfg80211_registered_device *rdev,
8249 struct wireless_dev *wdev, u64 cookie,
8250 struct ieee80211_channel *chan,
8251 enum nl80211_channel_type channel_type,
8252 unsigned int duration, gfp_t gfp)
8254 struct sk_buff *msg;
8257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8261 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8267 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8268 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8269 wdev->netdev->ifindex)) ||
8270 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8271 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8272 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8273 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8274 goto nla_put_failure;
8276 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8277 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8278 goto nla_put_failure;
8280 genlmsg_end(msg, hdr);
8282 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8283 nl80211_mlme_mcgrp.id, gfp);
8287 genlmsg_cancel(msg, hdr);
8291 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8292 struct wireless_dev *wdev, u64 cookie,
8293 struct ieee80211_channel *chan,
8294 enum nl80211_channel_type channel_type,
8295 unsigned int duration, gfp_t gfp)
8297 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8298 rdev, wdev, cookie, chan,
8299 channel_type, duration, gfp);
8302 void nl80211_send_remain_on_channel_cancel(
8303 struct cfg80211_registered_device *rdev,
8304 struct wireless_dev *wdev,
8305 u64 cookie, struct ieee80211_channel *chan,
8306 enum nl80211_channel_type channel_type, gfp_t gfp)
8308 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8309 rdev, wdev, cookie, chan,
8310 channel_type, 0, gfp);
8313 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8314 struct net_device *dev, const u8 *mac_addr,
8315 struct station_info *sinfo, gfp_t gfp)
8317 struct sk_buff *msg;
8319 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8323 if (nl80211_send_station(msg, 0, 0, 0,
8324 rdev, dev, mac_addr, sinfo) < 0) {
8329 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8330 nl80211_mlme_mcgrp.id, gfp);
8333 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8334 struct net_device *dev, const u8 *mac_addr,
8337 struct sk_buff *msg;
8340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8344 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8350 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8351 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8352 goto nla_put_failure;
8354 genlmsg_end(msg, hdr);
8356 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8357 nl80211_mlme_mcgrp.id, gfp);
8361 genlmsg_cancel(msg, hdr);
8365 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8366 const u8 *addr, gfp_t gfp)
8368 struct wireless_dev *wdev = dev->ieee80211_ptr;
8369 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8370 struct sk_buff *msg;
8373 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8378 msg = nlmsg_new(100, gfp);
8382 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8388 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8389 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8390 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8391 goto nla_put_failure;
8393 err = genlmsg_end(msg, hdr);
8399 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8403 genlmsg_cancel(msg, hdr);
8408 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8410 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8414 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8415 const u8 *addr, gfp_t gfp)
8417 return __nl80211_unexpected_frame(dev,
8418 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8422 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8423 struct wireless_dev *wdev, u32 nlpid,
8424 int freq, int sig_dbm,
8425 const u8 *buf, size_t len, gfp_t gfp)
8427 struct net_device *netdev = wdev->netdev;
8428 struct sk_buff *msg;
8431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8435 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8441 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8442 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8443 netdev->ifindex)) ||
8444 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8446 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8447 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8448 goto nla_put_failure;
8450 genlmsg_end(msg, hdr);
8452 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8455 genlmsg_cancel(msg, hdr);
8460 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8461 struct wireless_dev *wdev, u64 cookie,
8462 const u8 *buf, size_t len, bool ack,
8465 struct net_device *netdev = wdev->netdev;
8466 struct sk_buff *msg;
8469 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8473 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8479 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8480 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8481 netdev->ifindex)) ||
8482 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8483 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8484 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8485 goto nla_put_failure;
8487 genlmsg_end(msg, hdr);
8489 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8493 genlmsg_cancel(msg, hdr);
8498 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8499 struct net_device *netdev,
8500 enum nl80211_cqm_rssi_threshold_event rssi_event,
8503 struct sk_buff *msg;
8504 struct nlattr *pinfoattr;
8507 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8511 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8518 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8519 goto nla_put_failure;
8521 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8523 goto nla_put_failure;
8525 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8527 goto nla_put_failure;
8529 nla_nest_end(msg, pinfoattr);
8531 genlmsg_end(msg, hdr);
8533 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8534 nl80211_mlme_mcgrp.id, gfp);
8538 genlmsg_cancel(msg, hdr);
8542 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8543 struct net_device *netdev, const u8 *bssid,
8544 const u8 *replay_ctr, gfp_t gfp)
8546 struct sk_buff *msg;
8547 struct nlattr *rekey_attr;
8550 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8554 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8560 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8561 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8562 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8563 goto nla_put_failure;
8565 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8567 goto nla_put_failure;
8569 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8570 NL80211_REPLAY_CTR_LEN, replay_ctr))
8571 goto nla_put_failure;
8573 nla_nest_end(msg, rekey_attr);
8575 genlmsg_end(msg, hdr);
8577 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8578 nl80211_mlme_mcgrp.id, gfp);
8582 genlmsg_cancel(msg, hdr);
8586 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8587 struct net_device *netdev, int index,
8588 const u8 *bssid, bool preauth, gfp_t gfp)
8590 struct sk_buff *msg;
8591 struct nlattr *attr;
8594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8604 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8605 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8606 goto nla_put_failure;
8608 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8610 goto nla_put_failure;
8612 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8613 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8615 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8616 goto nla_put_failure;
8618 nla_nest_end(msg, attr);
8620 genlmsg_end(msg, hdr);
8622 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8623 nl80211_mlme_mcgrp.id, gfp);
8627 genlmsg_cancel(msg, hdr);
8631 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8632 struct net_device *netdev, int freq,
8633 enum nl80211_channel_type type, gfp_t gfp)
8635 struct sk_buff *msg;
8638 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8642 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8648 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8649 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8650 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8651 goto nla_put_failure;
8653 genlmsg_end(msg, hdr);
8655 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8656 nl80211_mlme_mcgrp.id, gfp);
8660 genlmsg_cancel(msg, hdr);
8665 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8666 struct net_device *netdev, const u8 *peer,
8667 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8669 struct sk_buff *msg;
8670 struct nlattr *pinfoattr;
8673 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8677 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8683 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8685 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8686 goto nla_put_failure;
8688 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8690 goto nla_put_failure;
8692 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8693 goto nla_put_failure;
8695 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8696 goto nla_put_failure;
8698 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8699 goto nla_put_failure;
8701 nla_nest_end(msg, pinfoattr);
8703 genlmsg_end(msg, hdr);
8705 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8706 nl80211_mlme_mcgrp.id, gfp);
8710 genlmsg_cancel(msg, hdr);
8715 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8716 struct net_device *netdev, const u8 *peer,
8717 u32 num_packets, gfp_t gfp)
8719 struct sk_buff *msg;
8720 struct nlattr *pinfoattr;
8723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8727 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8733 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8734 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8735 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8736 goto nla_put_failure;
8738 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8740 goto nla_put_failure;
8742 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8743 goto nla_put_failure;
8745 nla_nest_end(msg, pinfoattr);
8747 genlmsg_end(msg, hdr);
8749 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8750 nl80211_mlme_mcgrp.id, gfp);
8754 genlmsg_cancel(msg, hdr);
8758 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8759 u64 cookie, bool acked, gfp_t gfp)
8761 struct wireless_dev *wdev = dev->ieee80211_ptr;
8762 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8763 struct sk_buff *msg;
8767 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8771 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8777 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8778 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8779 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8780 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8781 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8782 goto nla_put_failure;
8784 err = genlmsg_end(msg, hdr);
8790 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8791 nl80211_mlme_mcgrp.id, gfp);
8795 genlmsg_cancel(msg, hdr);
8798 EXPORT_SYMBOL(cfg80211_probe_status);
8800 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8801 const u8 *frame, size_t len,
8802 int freq, int sig_dbm, gfp_t gfp)
8804 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8805 struct sk_buff *msg;
8807 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8812 msg = nlmsg_new(len + 100, gfp);
8816 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8822 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8824 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8826 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8827 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8828 goto nla_put_failure;
8830 genlmsg_end(msg, hdr);
8832 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8836 genlmsg_cancel(msg, hdr);
8839 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8841 static int nl80211_netlink_notify(struct notifier_block * nb,
8842 unsigned long state,
8845 struct netlink_notify *notify = _notify;
8846 struct cfg80211_registered_device *rdev;
8847 struct wireless_dev *wdev;
8849 if (state != NETLINK_URELEASE)
8854 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8855 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
8856 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8857 if (rdev->ap_beacons_nlpid == notify->pid)
8858 rdev->ap_beacons_nlpid = 0;
8866 static struct notifier_block nl80211_netlink_notifier = {
8867 .notifier_call = nl80211_netlink_notify,
8870 /* initialisation/exit functions */
8872 int nl80211_init(void)
8876 err = genl_register_family_with_ops(&nl80211_fam,
8877 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8881 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8885 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8889 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8893 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8897 #ifdef CONFIG_NL80211_TESTMODE
8898 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8903 err = netlink_register_notifier(&nl80211_netlink_notifier);
8909 genl_unregister_family(&nl80211_fam);
8913 void nl80211_exit(void)
8915 netlink_unregister_notifier(&nl80211_netlink_notifier);
8916 genl_unregister_family(&nl80211_fam);