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;
1104 #ifdef CONFIG_NL80211_TESTMODE
1105 CMD(testmode_cmd, TESTMODE);
1110 if (dev->ops->connect || dev->ops->auth) {
1112 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1113 goto nla_put_failure;
1116 if (dev->ops->disconnect || dev->ops->deauth) {
1118 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1119 goto nla_put_failure;
1122 nla_nest_end(msg, nl_cmds);
1124 if (dev->ops->remain_on_channel &&
1125 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1126 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1127 dev->wiphy.max_remain_on_channel_duration))
1128 goto nla_put_failure;
1130 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1131 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1132 goto nla_put_failure;
1136 struct nlattr *nl_ftypes, *nl_ifs;
1137 enum nl80211_iftype ift;
1139 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1141 goto nla_put_failure;
1143 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1144 nl_ftypes = nla_nest_start(msg, ift);
1146 goto nla_put_failure;
1148 stypes = mgmt_stypes[ift].tx;
1151 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1152 (i << 4) | IEEE80211_FTYPE_MGMT))
1153 goto nla_put_failure;
1157 nla_nest_end(msg, nl_ftypes);
1160 nla_nest_end(msg, nl_ifs);
1162 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1164 goto nla_put_failure;
1166 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1167 nl_ftypes = nla_nest_start(msg, ift);
1169 goto nla_put_failure;
1171 stypes = mgmt_stypes[ift].rx;
1174 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1175 (i << 4) | IEEE80211_FTYPE_MGMT))
1176 goto nla_put_failure;
1180 nla_nest_end(msg, nl_ftypes);
1182 nla_nest_end(msg, nl_ifs);
1186 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1187 struct nlattr *nl_wowlan;
1189 nl_wowlan = nla_nest_start(msg,
1190 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1192 goto nla_put_failure;
1194 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1195 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1196 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1197 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1198 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1199 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1200 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1201 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1202 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1203 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1204 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1205 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1206 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1207 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1208 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1209 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1210 goto nla_put_failure;
1211 if (dev->wiphy.wowlan.n_patterns) {
1212 struct nl80211_wowlan_pattern_support pat = {
1213 .max_patterns = dev->wiphy.wowlan.n_patterns,
1215 dev->wiphy.wowlan.pattern_min_len,
1217 dev->wiphy.wowlan.pattern_max_len,
1219 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1221 goto nla_put_failure;
1224 nla_nest_end(msg, nl_wowlan);
1228 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1229 dev->wiphy.software_iftypes))
1230 goto nla_put_failure;
1232 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1233 goto nla_put_failure;
1235 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1236 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1237 dev->wiphy.ap_sme_capa))
1238 goto nla_put_failure;
1240 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1241 dev->wiphy.features))
1242 goto nla_put_failure;
1244 if (dev->wiphy.ht_capa_mod_mask &&
1245 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1246 sizeof(*dev->wiphy.ht_capa_mod_mask),
1247 dev->wiphy.ht_capa_mod_mask))
1248 goto nla_put_failure;
1250 return genlmsg_end(msg, hdr);
1253 genlmsg_cancel(msg, hdr);
1257 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1260 int start = cb->args[0];
1261 struct cfg80211_registered_device *dev;
1263 mutex_lock(&cfg80211_mutex);
1264 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1265 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1269 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1270 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1276 mutex_unlock(&cfg80211_mutex);
1283 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1285 struct sk_buff *msg;
1286 struct cfg80211_registered_device *dev = info->user_ptr[0];
1288 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1292 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1297 return genlmsg_reply(msg, info);
1300 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1301 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1302 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1303 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1304 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1305 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1308 static int parse_txq_params(struct nlattr *tb[],
1309 struct ieee80211_txq_params *txq_params)
1311 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1312 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1313 !tb[NL80211_TXQ_ATTR_AIFS])
1316 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1317 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1318 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1319 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1320 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1322 if (txq_params->ac >= NL80211_NUM_ACS)
1328 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1331 * You can only set the channel explicitly for WDS interfaces,
1332 * all others have their channel managed via their respective
1333 * "establish a connection" command (connect, join, ...)
1335 * For AP/GO and mesh mode, the channel can be set with the
1336 * channel userspace API, but is only stored and passed to the
1337 * low-level driver when the AP starts or the mesh is joined.
1338 * This is for backward compatibility, userspace can also give
1339 * the channel in the start-ap or join-mesh commands instead.
1341 * Monitors are special as they are normally slaved to
1342 * whatever else is going on, so they have their own special
1343 * operation to set the monitor channel if possible.
1346 wdev->iftype == NL80211_IFTYPE_AP ||
1347 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1348 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1349 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1352 static bool nl80211_valid_channel_type(struct genl_info *info,
1353 enum nl80211_channel_type *channel_type)
1355 enum nl80211_channel_type tmp;
1357 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1360 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1361 if (tmp != NL80211_CHAN_NO_HT &&
1362 tmp != NL80211_CHAN_HT20 &&
1363 tmp != NL80211_CHAN_HT40PLUS &&
1364 tmp != NL80211_CHAN_HT40MINUS)
1368 *channel_type = tmp;
1373 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1374 struct wireless_dev *wdev,
1375 struct genl_info *info)
1377 struct ieee80211_channel *channel;
1378 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1381 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1384 iftype = wdev->iftype;
1386 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1389 if (!nl80211_can_set_dev_channel(wdev))
1392 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1393 !nl80211_valid_channel_type(info, &channel_type))
1396 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1398 mutex_lock(&rdev->devlist_mtx);
1400 case NL80211_IFTYPE_AP:
1401 case NL80211_IFTYPE_P2P_GO:
1402 if (wdev->beacon_interval) {
1406 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1407 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1413 wdev->preset_chan = channel;
1414 wdev->preset_chantype = channel_type;
1417 case NL80211_IFTYPE_MESH_POINT:
1418 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1420 case NL80211_IFTYPE_MONITOR:
1421 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1426 mutex_unlock(&rdev->devlist_mtx);
1431 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1433 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1434 struct net_device *netdev = info->user_ptr[1];
1436 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1439 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1442 struct net_device *dev = info->user_ptr[1];
1443 struct wireless_dev *wdev = dev->ieee80211_ptr;
1446 if (!info->attrs[NL80211_ATTR_MAC])
1449 if (netif_running(dev))
1452 if (!rdev->ops->set_wds_peer)
1455 if (wdev->iftype != NL80211_IFTYPE_WDS)
1458 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1459 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1463 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1465 struct cfg80211_registered_device *rdev;
1466 struct net_device *netdev = NULL;
1467 struct wireless_dev *wdev;
1468 int result = 0, rem_txq_params = 0;
1469 struct nlattr *nl_txq_params;
1471 u8 retry_short = 0, retry_long = 0;
1472 u32 frag_threshold = 0, rts_threshold = 0;
1473 u8 coverage_class = 0;
1476 * Try to find the wiphy and netdev. Normally this
1477 * function shouldn't need the netdev, but this is
1478 * done for backward compatibility -- previously
1479 * setting the channel was done per wiphy, but now
1480 * it is per netdev. Previous userland like hostapd
1481 * also passed a netdev to set_wiphy, so that it is
1482 * possible to let that go to the right netdev!
1484 mutex_lock(&cfg80211_mutex);
1486 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1487 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1489 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1490 if (netdev && netdev->ieee80211_ptr) {
1491 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1492 mutex_lock(&rdev->mtx);
1498 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1501 mutex_unlock(&cfg80211_mutex);
1502 return PTR_ERR(rdev);
1508 mutex_lock(&rdev->mtx);
1509 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1510 wdev = netdev->ieee80211_ptr;
1515 * end workaround code, by now the rdev is available
1516 * and locked, and wdev may or may not be NULL.
1519 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1520 result = cfg80211_dev_rename(
1521 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1523 mutex_unlock(&cfg80211_mutex);
1528 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1529 struct ieee80211_txq_params txq_params;
1530 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1532 if (!rdev->ops->set_txq_params) {
1533 result = -EOPNOTSUPP;
1542 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1543 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1548 if (!netif_running(netdev)) {
1553 nla_for_each_nested(nl_txq_params,
1554 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1556 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1557 nla_data(nl_txq_params),
1558 nla_len(nl_txq_params),
1560 result = parse_txq_params(tb, &txq_params);
1564 result = rdev->ops->set_txq_params(&rdev->wiphy,
1572 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1573 result = __nl80211_set_channel(rdev, wdev, info);
1578 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1579 enum nl80211_tx_power_setting type;
1582 if (!rdev->ops->set_tx_power) {
1583 result = -EOPNOTSUPP;
1587 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1588 type = nla_get_u32(info->attrs[idx]);
1590 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1591 (type != NL80211_TX_POWER_AUTOMATIC)) {
1596 if (type != NL80211_TX_POWER_AUTOMATIC) {
1597 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1598 mbm = nla_get_u32(info->attrs[idx]);
1601 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1606 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1607 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1609 if ((!rdev->wiphy.available_antennas_tx &&
1610 !rdev->wiphy.available_antennas_rx) ||
1611 !rdev->ops->set_antenna) {
1612 result = -EOPNOTSUPP;
1616 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1617 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1619 /* reject antenna configurations which don't match the
1620 * available antenna masks, except for the "all" mask */
1621 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1622 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1627 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1628 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1630 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1637 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1638 retry_short = nla_get_u8(
1639 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1640 if (retry_short == 0) {
1644 changed |= WIPHY_PARAM_RETRY_SHORT;
1647 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1648 retry_long = nla_get_u8(
1649 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1650 if (retry_long == 0) {
1654 changed |= WIPHY_PARAM_RETRY_LONG;
1657 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1658 frag_threshold = nla_get_u32(
1659 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1660 if (frag_threshold < 256) {
1664 if (frag_threshold != (u32) -1) {
1666 * Fragments (apart from the last one) are required to
1667 * have even length. Make the fragmentation code
1668 * simpler by stripping LSB should someone try to use
1669 * odd threshold value.
1671 frag_threshold &= ~0x1;
1673 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1676 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1677 rts_threshold = nla_get_u32(
1678 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1679 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1682 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1683 coverage_class = nla_get_u8(
1684 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1685 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1689 u8 old_retry_short, old_retry_long;
1690 u32 old_frag_threshold, old_rts_threshold;
1691 u8 old_coverage_class;
1693 if (!rdev->ops->set_wiphy_params) {
1694 result = -EOPNOTSUPP;
1698 old_retry_short = rdev->wiphy.retry_short;
1699 old_retry_long = rdev->wiphy.retry_long;
1700 old_frag_threshold = rdev->wiphy.frag_threshold;
1701 old_rts_threshold = rdev->wiphy.rts_threshold;
1702 old_coverage_class = rdev->wiphy.coverage_class;
1704 if (changed & WIPHY_PARAM_RETRY_SHORT)
1705 rdev->wiphy.retry_short = retry_short;
1706 if (changed & WIPHY_PARAM_RETRY_LONG)
1707 rdev->wiphy.retry_long = retry_long;
1708 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1709 rdev->wiphy.frag_threshold = frag_threshold;
1710 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1711 rdev->wiphy.rts_threshold = rts_threshold;
1712 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1713 rdev->wiphy.coverage_class = coverage_class;
1715 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1717 rdev->wiphy.retry_short = old_retry_short;
1718 rdev->wiphy.retry_long = old_retry_long;
1719 rdev->wiphy.frag_threshold = old_frag_threshold;
1720 rdev->wiphy.rts_threshold = old_rts_threshold;
1721 rdev->wiphy.coverage_class = old_coverage_class;
1726 mutex_unlock(&rdev->mtx);
1732 static inline u64 wdev_id(struct wireless_dev *wdev)
1734 return (u64)wdev->identifier |
1735 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1738 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1739 struct cfg80211_registered_device *rdev,
1740 struct wireless_dev *wdev)
1742 struct net_device *dev = wdev->netdev;
1745 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1750 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1751 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1752 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr)))
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_u32(msg, NL80211_ATTR_GENERATION,
1759 rdev->devlist_generation ^
1760 (cfg80211_rdev_list_generation << 2)))
1761 goto nla_put_failure;
1763 if (rdev->ops->get_channel) {
1764 struct ieee80211_channel *chan;
1765 enum nl80211_channel_type channel_type;
1767 chan = rdev->ops->get_channel(&rdev->wiphy, wdev,
1770 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1771 chan->center_freq) ||
1772 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1774 goto nla_put_failure;
1777 return genlmsg_end(msg, hdr);
1780 genlmsg_cancel(msg, hdr);
1784 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1788 int wp_start = cb->args[0];
1789 int if_start = cb->args[1];
1790 struct cfg80211_registered_device *rdev;
1791 struct wireless_dev *wdev;
1793 mutex_lock(&cfg80211_mutex);
1794 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1795 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1797 if (wp_idx < wp_start) {
1803 mutex_lock(&rdev->devlist_mtx);
1804 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1805 if (if_idx < if_start) {
1809 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1810 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1812 mutex_unlock(&rdev->devlist_mtx);
1817 mutex_unlock(&rdev->devlist_mtx);
1822 mutex_unlock(&cfg80211_mutex);
1824 cb->args[0] = wp_idx;
1825 cb->args[1] = if_idx;
1830 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1832 struct sk_buff *msg;
1833 struct cfg80211_registered_device *dev = info->user_ptr[0];
1834 struct wireless_dev *wdev = info->user_ptr[1];
1836 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1840 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1846 return genlmsg_reply(msg, info);
1849 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1850 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1851 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1852 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1853 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1854 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1857 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1859 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1867 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1868 nla, mntr_flags_policy))
1871 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1873 *mntrflags |= (1<<flag);
1878 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1879 struct net_device *netdev, u8 use_4addr,
1880 enum nl80211_iftype iftype)
1883 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1889 case NL80211_IFTYPE_AP_VLAN:
1890 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1893 case NL80211_IFTYPE_STATION:
1894 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1904 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1907 struct vif_params params;
1909 enum nl80211_iftype otype, ntype;
1910 struct net_device *dev = info->user_ptr[1];
1911 u32 _flags, *flags = NULL;
1912 bool change = false;
1914 memset(¶ms, 0, sizeof(params));
1916 otype = ntype = dev->ieee80211_ptr->iftype;
1918 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1919 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1922 if (ntype > NL80211_IFTYPE_MAX)
1926 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1927 struct wireless_dev *wdev = dev->ieee80211_ptr;
1929 if (ntype != NL80211_IFTYPE_MESH_POINT)
1931 if (netif_running(dev))
1935 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1936 IEEE80211_MAX_MESH_ID_LEN);
1937 wdev->mesh_id_up_len =
1938 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1939 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1940 wdev->mesh_id_up_len);
1944 if (info->attrs[NL80211_ATTR_4ADDR]) {
1945 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1947 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1951 params.use_4addr = -1;
1954 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1955 if (ntype != NL80211_IFTYPE_MONITOR)
1957 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1967 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1971 if (!err && params.use_4addr != -1)
1972 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1977 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1980 struct vif_params params;
1981 struct wireless_dev *wdev;
1982 struct sk_buff *msg;
1984 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1987 memset(¶ms, 0, sizeof(params));
1989 if (!info->attrs[NL80211_ATTR_IFNAME])
1992 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1993 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1994 if (type > NL80211_IFTYPE_MAX)
1998 if (!rdev->ops->add_virtual_intf ||
1999 !(rdev->wiphy.interface_modes & (1 << type)))
2002 if (info->attrs[NL80211_ATTR_4ADDR]) {
2003 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2004 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2009 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2013 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2014 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2016 wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
2017 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2018 type, err ? NULL : &flags, ¶ms);
2021 return PTR_ERR(wdev);
2024 if (type == NL80211_IFTYPE_MESH_POINT &&
2025 info->attrs[NL80211_ATTR_MESH_ID]) {
2027 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2028 IEEE80211_MAX_MESH_ID_LEN);
2029 wdev->mesh_id_up_len =
2030 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2031 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2032 wdev->mesh_id_up_len);
2036 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
2042 return genlmsg_reply(msg, info);
2045 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2048 struct wireless_dev *wdev = info->user_ptr[1];
2050 if (!rdev->ops->del_virtual_intf)
2054 * If we remove a wireless device without a netdev then clear
2055 * user_ptr[1] so that nl80211_post_doit won't dereference it
2056 * to check if it needs to do dev_put(). Otherwise it crashes
2057 * since the wdev has been freed, unlike with a netdev where
2058 * we need the dev_put() for the netdev to really be freed.
2061 info->user_ptr[1] = NULL;
2063 return rdev->ops->del_virtual_intf(&rdev->wiphy, wdev);
2066 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2069 struct net_device *dev = info->user_ptr[1];
2072 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2075 if (!rdev->ops->set_noack_map)
2078 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2080 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2083 struct get_key_cookie {
2084 struct sk_buff *msg;
2089 static void get_key_callback(void *c, struct key_params *params)
2092 struct get_key_cookie *cookie = c;
2095 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2096 params->key_len, params->key)) ||
2098 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2099 params->seq_len, params->seq)) ||
2101 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2103 goto nla_put_failure;
2105 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2107 goto nla_put_failure;
2110 nla_put(cookie->msg, NL80211_KEY_DATA,
2111 params->key_len, params->key)) ||
2113 nla_put(cookie->msg, NL80211_KEY_SEQ,
2114 params->seq_len, params->seq)) ||
2116 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2118 goto nla_put_failure;
2120 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2121 goto nla_put_failure;
2123 nla_nest_end(cookie->msg, key);
2130 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2134 struct net_device *dev = info->user_ptr[1];
2136 const u8 *mac_addr = NULL;
2138 struct get_key_cookie cookie = {
2142 struct sk_buff *msg;
2144 if (info->attrs[NL80211_ATTR_KEY_IDX])
2145 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2150 if (info->attrs[NL80211_ATTR_MAC])
2151 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2153 pairwise = !!mac_addr;
2154 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2155 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2156 if (kt >= NUM_NL80211_KEYTYPES)
2158 if (kt != NL80211_KEYTYPE_GROUP &&
2159 kt != NL80211_KEYTYPE_PAIRWISE)
2161 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2164 if (!rdev->ops->get_key)
2167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2171 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2172 NL80211_CMD_NEW_KEY);
2174 return PTR_ERR(hdr);
2177 cookie.idx = key_idx;
2179 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2180 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2181 goto nla_put_failure;
2183 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2184 goto nla_put_failure;
2186 if (pairwise && mac_addr &&
2187 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2190 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2191 mac_addr, &cookie, get_key_callback);
2197 goto nla_put_failure;
2199 genlmsg_end(msg, hdr);
2200 return genlmsg_reply(msg, info);
2209 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2211 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2212 struct key_parse key;
2214 struct net_device *dev = info->user_ptr[1];
2216 err = nl80211_parse_key(info, &key);
2223 /* only support setting default key */
2224 if (!key.def && !key.defmgmt)
2227 wdev_lock(dev->ieee80211_ptr);
2230 if (!rdev->ops->set_default_key) {
2235 err = nl80211_key_allowed(dev->ieee80211_ptr);
2239 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2240 key.def_uni, key.def_multi);
2245 #ifdef CONFIG_CFG80211_WEXT
2246 dev->ieee80211_ptr->wext.default_key = key.idx;
2249 if (key.def_uni || !key.def_multi) {
2254 if (!rdev->ops->set_default_mgmt_key) {
2259 err = nl80211_key_allowed(dev->ieee80211_ptr);
2263 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2268 #ifdef CONFIG_CFG80211_WEXT
2269 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2274 wdev_unlock(dev->ieee80211_ptr);
2279 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2283 struct net_device *dev = info->user_ptr[1];
2284 struct key_parse key;
2285 const u8 *mac_addr = NULL;
2287 err = nl80211_parse_key(info, &key);
2294 if (info->attrs[NL80211_ATTR_MAC])
2295 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2297 if (key.type == -1) {
2299 key.type = NL80211_KEYTYPE_PAIRWISE;
2301 key.type = NL80211_KEYTYPE_GROUP;
2305 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2306 key.type != NL80211_KEYTYPE_GROUP)
2309 if (!rdev->ops->add_key)
2312 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2313 key.type == NL80211_KEYTYPE_PAIRWISE,
2317 wdev_lock(dev->ieee80211_ptr);
2318 err = nl80211_key_allowed(dev->ieee80211_ptr);
2320 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2321 key.type == NL80211_KEYTYPE_PAIRWISE,
2323 wdev_unlock(dev->ieee80211_ptr);
2328 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2330 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2332 struct net_device *dev = info->user_ptr[1];
2333 u8 *mac_addr = NULL;
2334 struct key_parse key;
2336 err = nl80211_parse_key(info, &key);
2340 if (info->attrs[NL80211_ATTR_MAC])
2341 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2343 if (key.type == -1) {
2345 key.type = NL80211_KEYTYPE_PAIRWISE;
2347 key.type = NL80211_KEYTYPE_GROUP;
2351 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2352 key.type != NL80211_KEYTYPE_GROUP)
2355 if (!rdev->ops->del_key)
2358 wdev_lock(dev->ieee80211_ptr);
2359 err = nl80211_key_allowed(dev->ieee80211_ptr);
2361 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2362 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2366 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2367 key.type == NL80211_KEYTYPE_PAIRWISE,
2370 #ifdef CONFIG_CFG80211_WEXT
2372 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2373 dev->ieee80211_ptr->wext.default_key = -1;
2374 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2375 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2378 wdev_unlock(dev->ieee80211_ptr);
2383 static int nl80211_parse_beacon(struct genl_info *info,
2384 struct cfg80211_beacon_data *bcn)
2386 bool haveinfo = false;
2388 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2389 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2390 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2391 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2394 memset(bcn, 0, sizeof(*bcn));
2396 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2397 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2398 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2404 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2405 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2407 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2414 if (info->attrs[NL80211_ATTR_IE]) {
2415 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2416 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2419 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2420 bcn->proberesp_ies =
2421 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2422 bcn->proberesp_ies_len =
2423 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2426 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2427 bcn->assocresp_ies =
2428 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2429 bcn->assocresp_ies_len =
2430 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2433 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2435 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2436 bcn->probe_resp_len =
2437 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2443 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2444 struct cfg80211_ap_settings *params)
2446 struct wireless_dev *wdev;
2449 mutex_lock(&rdev->devlist_mtx);
2451 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2452 if (wdev->iftype != NL80211_IFTYPE_AP &&
2453 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2456 if (!wdev->preset_chan)
2459 params->channel = wdev->preset_chan;
2460 params->channel_type = wdev->preset_chantype;
2465 mutex_unlock(&rdev->devlist_mtx);
2470 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2473 struct net_device *dev = info->user_ptr[1];
2474 struct wireless_dev *wdev = dev->ieee80211_ptr;
2475 struct cfg80211_ap_settings params;
2478 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2479 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2482 if (!rdev->ops->start_ap)
2485 if (wdev->beacon_interval)
2488 memset(¶ms, 0, sizeof(params));
2490 /* these are required for START_AP */
2491 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2492 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2493 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2496 err = nl80211_parse_beacon(info, ¶ms.beacon);
2500 params.beacon_interval =
2501 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2502 params.dtim_period =
2503 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2505 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2510 * In theory, some of these attributes should be required here
2511 * but since they were not used when the command was originally
2512 * added, keep them optional for old user space programs to let
2513 * them continue to work with drivers that do not need the
2514 * additional information -- drivers must check!
2516 if (info->attrs[NL80211_ATTR_SSID]) {
2517 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2519 nla_len(info->attrs[NL80211_ATTR_SSID]);
2520 if (params.ssid_len == 0 ||
2521 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2525 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2526 params.hidden_ssid = nla_get_u32(
2527 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2528 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2529 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2530 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2534 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2536 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2537 params.auth_type = nla_get_u32(
2538 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2539 if (!nl80211_valid_auth_type(params.auth_type))
2542 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2544 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2545 NL80211_MAX_NR_CIPHER_SUITES);
2549 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2550 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2552 params.inactivity_timeout = nla_get_u16(
2553 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2556 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2557 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2559 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2560 !nl80211_valid_channel_type(info, &channel_type))
2563 params.channel = rdev_freq_to_chan(rdev,
2564 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2566 if (!params.channel)
2568 params.channel_type = channel_type;
2569 } else if (wdev->preset_chan) {
2570 params.channel = wdev->preset_chan;
2571 params.channel_type = wdev->preset_chantype;
2572 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2575 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2576 params.channel_type))
2579 mutex_lock(&rdev->devlist_mtx);
2580 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2582 mutex_unlock(&rdev->devlist_mtx);
2587 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2589 wdev->preset_chan = params.channel;
2590 wdev->preset_chantype = params.channel_type;
2591 wdev->beacon_interval = params.beacon_interval;
2592 wdev->channel = params.channel;
2597 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2600 struct net_device *dev = info->user_ptr[1];
2601 struct wireless_dev *wdev = dev->ieee80211_ptr;
2602 struct cfg80211_beacon_data params;
2605 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2606 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2609 if (!rdev->ops->change_beacon)
2612 if (!wdev->beacon_interval)
2615 err = nl80211_parse_beacon(info, ¶ms);
2619 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2622 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2624 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2625 struct net_device *dev = info->user_ptr[1];
2627 return cfg80211_stop_ap(rdev, dev);
2630 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2631 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2632 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2633 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2634 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2635 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2636 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2639 static int parse_station_flags(struct genl_info *info,
2640 enum nl80211_iftype iftype,
2641 struct station_parameters *params)
2643 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2648 * Try parsing the new attribute first so userspace
2649 * can specify both for older kernels.
2651 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2653 struct nl80211_sta_flag_update *sta_flags;
2655 sta_flags = nla_data(nla);
2656 params->sta_flags_mask = sta_flags->mask;
2657 params->sta_flags_set = sta_flags->set;
2658 if ((params->sta_flags_mask |
2659 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2664 /* if present, parse the old attribute */
2666 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2670 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2671 nla, sta_flags_policy))
2675 * Only allow certain flags for interface types so that
2676 * other attributes are silently ignored. Remember that
2677 * this is backward compatibility code with old userspace
2678 * and shouldn't be hit in other cases anyway.
2681 case NL80211_IFTYPE_AP:
2682 case NL80211_IFTYPE_AP_VLAN:
2683 case NL80211_IFTYPE_P2P_GO:
2684 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2685 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2686 BIT(NL80211_STA_FLAG_WME) |
2687 BIT(NL80211_STA_FLAG_MFP);
2689 case NL80211_IFTYPE_P2P_CLIENT:
2690 case NL80211_IFTYPE_STATION:
2691 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2692 BIT(NL80211_STA_FLAG_TDLS_PEER);
2694 case NL80211_IFTYPE_MESH_POINT:
2695 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2696 BIT(NL80211_STA_FLAG_MFP) |
2697 BIT(NL80211_STA_FLAG_AUTHORIZED);
2702 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2704 params->sta_flags_set |= (1<<flag);
2706 /* no longer support new API additions in old API */
2707 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2715 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2718 struct nlattr *rate;
2722 rate = nla_nest_start(msg, attr);
2724 goto nla_put_failure;
2726 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2727 bitrate = cfg80211_calculate_bitrate(info);
2728 /* report 16-bit bitrate only if we can */
2729 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2731 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2732 (bitrate_compat > 0 &&
2733 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
2734 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2735 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2736 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2737 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2738 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2739 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2740 goto nla_put_failure;
2742 nla_nest_end(msg, rate);
2749 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2751 struct cfg80211_registered_device *rdev,
2752 struct net_device *dev,
2753 const u8 *mac_addr, struct station_info *sinfo)
2756 struct nlattr *sinfoattr, *bss_param;
2758 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2762 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2763 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2764 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2765 goto nla_put_failure;
2767 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2769 goto nla_put_failure;
2770 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2771 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2772 sinfo->connected_time))
2773 goto nla_put_failure;
2774 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2775 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2776 sinfo->inactive_time))
2777 goto nla_put_failure;
2778 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2779 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2781 goto nla_put_failure;
2782 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2783 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2785 goto nla_put_failure;
2786 if ((sinfo->filled & STATION_INFO_LLID) &&
2787 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2788 goto nla_put_failure;
2789 if ((sinfo->filled & STATION_INFO_PLID) &&
2790 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2791 goto nla_put_failure;
2792 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2793 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2794 sinfo->plink_state))
2795 goto nla_put_failure;
2796 switch (rdev->wiphy.signal_type) {
2797 case CFG80211_SIGNAL_TYPE_MBM:
2798 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2799 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2801 goto nla_put_failure;
2802 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2803 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2805 goto nla_put_failure;
2810 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2811 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2812 NL80211_STA_INFO_TX_BITRATE))
2813 goto nla_put_failure;
2815 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2816 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2817 NL80211_STA_INFO_RX_BITRATE))
2818 goto nla_put_failure;
2820 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2821 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2823 goto nla_put_failure;
2824 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2825 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2827 goto nla_put_failure;
2828 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2829 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2831 goto nla_put_failure;
2832 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2833 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2835 goto nla_put_failure;
2836 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2837 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2838 sinfo->beacon_loss_count))
2839 goto nla_put_failure;
2840 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2841 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2843 goto nla_put_failure;
2845 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2846 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2847 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2848 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2849 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2850 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2851 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2852 sinfo->bss_param.dtim_period) ||
2853 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2854 sinfo->bss_param.beacon_interval))
2855 goto nla_put_failure;
2857 nla_nest_end(msg, bss_param);
2859 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2860 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2861 sizeof(struct nl80211_sta_flag_update),
2863 goto nla_put_failure;
2864 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2865 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2867 goto nla_put_failure;
2868 nla_nest_end(msg, sinfoattr);
2870 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2871 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2872 sinfo->assoc_req_ies))
2873 goto nla_put_failure;
2875 return genlmsg_end(msg, hdr);
2878 genlmsg_cancel(msg, hdr);
2882 static int nl80211_dump_station(struct sk_buff *skb,
2883 struct netlink_callback *cb)
2885 struct station_info sinfo;
2886 struct cfg80211_registered_device *dev;
2887 struct net_device *netdev;
2888 u8 mac_addr[ETH_ALEN];
2889 int sta_idx = cb->args[1];
2892 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2896 if (!dev->ops->dump_station) {
2902 memset(&sinfo, 0, sizeof(sinfo));
2903 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2910 if (nl80211_send_station(skb,
2911 NETLINK_CB(cb->skb).pid,
2912 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2913 dev, netdev, mac_addr,
2922 cb->args[1] = sta_idx;
2925 nl80211_finish_netdev_dump(dev);
2930 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2933 struct net_device *dev = info->user_ptr[1];
2934 struct station_info sinfo;
2935 struct sk_buff *msg;
2936 u8 *mac_addr = NULL;
2939 memset(&sinfo, 0, sizeof(sinfo));
2941 if (!info->attrs[NL80211_ATTR_MAC])
2944 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2946 if (!rdev->ops->get_station)
2949 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2957 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2958 rdev, dev, mac_addr, &sinfo) < 0) {
2963 return genlmsg_reply(msg, info);
2967 * Get vlan interface making sure it is running and on the right wiphy.
2969 static struct net_device *get_vlan(struct genl_info *info,
2970 struct cfg80211_registered_device *rdev)
2972 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2973 struct net_device *v;
2979 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2981 return ERR_PTR(-ENODEV);
2983 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2988 if (!netif_running(v)) {
2996 return ERR_PTR(ret);
2999 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3003 struct net_device *dev = info->user_ptr[1];
3004 struct station_parameters params;
3005 u8 *mac_addr = NULL;
3007 memset(¶ms, 0, sizeof(params));
3009 params.listen_interval = -1;
3010 params.plink_state = -1;
3012 if (info->attrs[NL80211_ATTR_STA_AID])
3015 if (!info->attrs[NL80211_ATTR_MAC])
3018 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3020 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3021 params.supported_rates =
3022 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3023 params.supported_rates_len =
3024 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3027 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3028 params.listen_interval =
3029 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3031 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3033 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3035 if (!rdev->ops->change_station)
3038 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3041 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3042 params.plink_action =
3043 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3045 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3046 params.plink_state =
3047 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3049 switch (dev->ieee80211_ptr->iftype) {
3050 case NL80211_IFTYPE_AP:
3051 case NL80211_IFTYPE_AP_VLAN:
3052 case NL80211_IFTYPE_P2P_GO:
3053 /* disallow mesh-specific things */
3054 if (params.plink_action)
3057 /* TDLS can't be set, ... */
3058 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3061 * ... but don't bother the driver with it. This works around
3062 * a hostapd/wpa_supplicant issue -- it always includes the
3063 * TLDS_PEER flag in the mask even for AP mode.
3065 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3067 /* accept only the listed bits */
3068 if (params.sta_flags_mask &
3069 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3070 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3071 BIT(NL80211_STA_FLAG_WME) |
3072 BIT(NL80211_STA_FLAG_MFP)))
3075 /* must be last in here for error handling */
3076 params.vlan = get_vlan(info, rdev);
3077 if (IS_ERR(params.vlan))
3078 return PTR_ERR(params.vlan);
3080 case NL80211_IFTYPE_P2P_CLIENT:
3081 case NL80211_IFTYPE_STATION:
3083 * Don't allow userspace to change the TDLS_PEER flag,
3084 * but silently ignore attempts to change it since we
3085 * don't have state here to verify that it doesn't try
3086 * to change the flag.
3088 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3090 case NL80211_IFTYPE_ADHOC:
3091 /* disallow things sta doesn't support */
3092 if (params.plink_action)
3096 if (params.listen_interval >= 0)
3098 /* reject any changes other than AUTHORIZED */
3099 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3102 case NL80211_IFTYPE_MESH_POINT:
3103 /* disallow things mesh doesn't support */
3108 if (params.listen_interval >= 0)
3111 * No special handling for TDLS here -- the userspace
3112 * mesh code doesn't have this bug.
3114 if (params.sta_flags_mask &
3115 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3116 BIT(NL80211_STA_FLAG_MFP) |
3117 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3124 /* be aware of params.vlan when changing code here */
3126 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3129 dev_put(params.vlan);
3134 static struct nla_policy
3135 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3136 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3137 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3140 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3144 struct net_device *dev = info->user_ptr[1];
3145 struct station_parameters params;
3146 u8 *mac_addr = NULL;
3148 memset(¶ms, 0, sizeof(params));
3150 if (!info->attrs[NL80211_ATTR_MAC])
3153 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3156 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3159 if (!info->attrs[NL80211_ATTR_STA_AID])
3162 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3163 params.supported_rates =
3164 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3165 params.supported_rates_len =
3166 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3167 params.listen_interval =
3168 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3170 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3171 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3174 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3176 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3178 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3179 params.plink_action =
3180 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3182 if (!rdev->ops->add_station)
3185 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3188 switch (dev->ieee80211_ptr->iftype) {
3189 case NL80211_IFTYPE_AP:
3190 case NL80211_IFTYPE_AP_VLAN:
3191 case NL80211_IFTYPE_P2P_GO:
3192 /* parse WME attributes if sta is WME capable */
3193 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3194 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3195 info->attrs[NL80211_ATTR_STA_WME]) {
3196 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3199 nla = info->attrs[NL80211_ATTR_STA_WME];
3200 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3201 nl80211_sta_wme_policy);
3205 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3206 params.uapsd_queues =
3207 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3208 if (params.uapsd_queues &
3209 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3212 if (tb[NL80211_STA_WME_MAX_SP])
3214 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3217 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3220 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3222 /* TDLS peers cannot be added */
3223 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3225 /* but don't bother the driver with it */
3226 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3228 /* must be last in here for error handling */
3229 params.vlan = get_vlan(info, rdev);
3230 if (IS_ERR(params.vlan))
3231 return PTR_ERR(params.vlan);
3233 case NL80211_IFTYPE_MESH_POINT:
3234 /* TDLS peers cannot be added */
3235 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3238 case NL80211_IFTYPE_STATION:
3239 /* Only TDLS peers can be added */
3240 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3242 /* Can only add if TDLS ... */
3243 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3245 /* ... with external setup is supported */
3246 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3253 /* be aware of params.vlan when changing code here */
3255 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3258 dev_put(params.vlan);
3262 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3265 struct net_device *dev = info->user_ptr[1];
3266 u8 *mac_addr = NULL;
3268 if (info->attrs[NL80211_ATTR_MAC])
3269 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3271 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3272 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3273 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3274 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3277 if (!rdev->ops->del_station)
3280 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3283 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3284 int flags, struct net_device *dev,
3285 u8 *dst, u8 *next_hop,
3286 struct mpath_info *pinfo)
3289 struct nlattr *pinfoattr;
3291 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3295 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3296 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3297 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3298 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3299 goto nla_put_failure;
3301 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3303 goto nla_put_failure;
3304 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3305 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3307 goto nla_put_failure;
3308 if (((pinfo->filled & MPATH_INFO_SN) &&
3309 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3310 ((pinfo->filled & MPATH_INFO_METRIC) &&
3311 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3313 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3314 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3316 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3317 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3319 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3320 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3321 pinfo->discovery_timeout)) ||
3322 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3323 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3324 pinfo->discovery_retries)))
3325 goto nla_put_failure;
3327 nla_nest_end(msg, pinfoattr);
3329 return genlmsg_end(msg, hdr);
3332 genlmsg_cancel(msg, hdr);
3336 static int nl80211_dump_mpath(struct sk_buff *skb,
3337 struct netlink_callback *cb)
3339 struct mpath_info pinfo;
3340 struct cfg80211_registered_device *dev;
3341 struct net_device *netdev;
3343 u8 next_hop[ETH_ALEN];
3344 int path_idx = cb->args[1];
3347 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3351 if (!dev->ops->dump_mpath) {
3356 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3362 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3363 dst, next_hop, &pinfo);
3369 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3370 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3371 netdev, dst, next_hop,
3380 cb->args[1] = path_idx;
3383 nl80211_finish_netdev_dump(dev);
3387 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3391 struct net_device *dev = info->user_ptr[1];
3392 struct mpath_info pinfo;
3393 struct sk_buff *msg;
3395 u8 next_hop[ETH_ALEN];
3397 memset(&pinfo, 0, sizeof(pinfo));
3399 if (!info->attrs[NL80211_ATTR_MAC])
3402 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3404 if (!rdev->ops->get_mpath)
3407 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3410 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3418 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3419 dev, dst, next_hop, &pinfo) < 0) {
3424 return genlmsg_reply(msg, info);
3427 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3430 struct net_device *dev = info->user_ptr[1];
3432 u8 *next_hop = NULL;
3434 if (!info->attrs[NL80211_ATTR_MAC])
3437 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3440 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3441 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3443 if (!rdev->ops->change_mpath)
3446 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3449 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3452 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3455 struct net_device *dev = info->user_ptr[1];
3457 u8 *next_hop = NULL;
3459 if (!info->attrs[NL80211_ATTR_MAC])
3462 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3465 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3466 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3468 if (!rdev->ops->add_mpath)
3471 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3474 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3477 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3480 struct net_device *dev = info->user_ptr[1];
3483 if (info->attrs[NL80211_ATTR_MAC])
3484 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3486 if (!rdev->ops->del_mpath)
3489 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3492 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3494 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3495 struct net_device *dev = info->user_ptr[1];
3496 struct bss_parameters params;
3498 memset(¶ms, 0, sizeof(params));
3499 /* default to not changing parameters */
3500 params.use_cts_prot = -1;
3501 params.use_short_preamble = -1;
3502 params.use_short_slot_time = -1;
3503 params.ap_isolate = -1;
3504 params.ht_opmode = -1;
3506 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3507 params.use_cts_prot =
3508 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3509 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3510 params.use_short_preamble =
3511 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3512 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3513 params.use_short_slot_time =
3514 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3515 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3516 params.basic_rates =
3517 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3518 params.basic_rates_len =
3519 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3521 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3522 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3523 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3525 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3527 if (!rdev->ops->change_bss)
3530 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3531 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3534 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3537 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3538 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3539 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3540 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3541 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3542 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3543 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3546 static int parse_reg_rule(struct nlattr *tb[],
3547 struct ieee80211_reg_rule *reg_rule)
3549 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3550 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3552 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3554 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3556 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3558 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3560 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3563 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3565 freq_range->start_freq_khz =
3566 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3567 freq_range->end_freq_khz =
3568 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3569 freq_range->max_bandwidth_khz =
3570 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3572 power_rule->max_eirp =
3573 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3575 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3576 power_rule->max_antenna_gain =
3577 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3582 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3586 enum nl80211_user_reg_hint_type user_reg_hint_type;
3589 * You should only get this when cfg80211 hasn't yet initialized
3590 * completely when built-in to the kernel right between the time
3591 * window between nl80211_init() and regulatory_init(), if that is
3594 mutex_lock(&cfg80211_mutex);
3595 if (unlikely(!cfg80211_regdomain)) {
3596 mutex_unlock(&cfg80211_mutex);
3597 return -EINPROGRESS;
3599 mutex_unlock(&cfg80211_mutex);
3601 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3604 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3606 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3607 user_reg_hint_type =
3608 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3610 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3612 switch (user_reg_hint_type) {
3613 case NL80211_USER_REG_HINT_USER:
3614 case NL80211_USER_REG_HINT_CELL_BASE:
3620 r = regulatory_hint_user(data, user_reg_hint_type);
3625 static int nl80211_get_mesh_config(struct sk_buff *skb,
3626 struct genl_info *info)
3628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3629 struct net_device *dev = info->user_ptr[1];
3630 struct wireless_dev *wdev = dev->ieee80211_ptr;
3631 struct mesh_config cur_params;
3634 struct nlattr *pinfoattr;
3635 struct sk_buff *msg;
3637 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3640 if (!rdev->ops->get_mesh_config)
3644 /* If not connected, get default parameters */
3645 if (!wdev->mesh_id_len)
3646 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3648 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3655 /* Draw up a netlink message to send back */
3656 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3659 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3660 NL80211_CMD_GET_MESH_CONFIG);
3663 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3665 goto nla_put_failure;
3666 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3667 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3668 cur_params.dot11MeshRetryTimeout) ||
3669 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3670 cur_params.dot11MeshConfirmTimeout) ||
3671 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3672 cur_params.dot11MeshHoldingTimeout) ||
3673 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3674 cur_params.dot11MeshMaxPeerLinks) ||
3675 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3676 cur_params.dot11MeshMaxRetries) ||
3677 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3678 cur_params.dot11MeshTTL) ||
3679 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3680 cur_params.element_ttl) ||
3681 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3682 cur_params.auto_open_plinks) ||
3683 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3684 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3685 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3686 cur_params.dot11MeshHWMPmaxPREQretries) ||
3687 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3688 cur_params.path_refresh_time) ||
3689 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3690 cur_params.min_discovery_timeout) ||
3691 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3692 cur_params.dot11MeshHWMPactivePathTimeout) ||
3693 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3694 cur_params.dot11MeshHWMPpreqMinInterval) ||
3695 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3696 cur_params.dot11MeshHWMPperrMinInterval) ||
3697 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3698 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3699 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3700 cur_params.dot11MeshHWMPRootMode) ||
3701 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3702 cur_params.dot11MeshHWMPRannInterval) ||
3703 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3704 cur_params.dot11MeshGateAnnouncementProtocol) ||
3705 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3706 cur_params.dot11MeshForwarding) ||
3707 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3708 cur_params.rssi_threshold) ||
3709 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3710 cur_params.ht_opmode) ||
3711 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3712 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3713 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3714 cur_params.dot11MeshHWMProotInterval) ||
3715 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3716 cur_params.dot11MeshHWMPconfirmationInterval))
3717 goto nla_put_failure;
3718 nla_nest_end(msg, pinfoattr);
3719 genlmsg_end(msg, hdr);
3720 return genlmsg_reply(msg, info);
3723 genlmsg_cancel(msg, hdr);
3729 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3730 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3731 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3732 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3733 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3734 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3735 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3736 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3737 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3738 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3739 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3740 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3741 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3742 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3743 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3744 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3745 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3746 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3747 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3748 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3749 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3750 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3751 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3752 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3753 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3754 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3757 static const struct nla_policy
3758 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3759 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3760 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3761 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3762 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3763 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3764 .len = IEEE80211_MAX_DATA_LEN },
3765 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3768 static int nl80211_parse_mesh_config(struct genl_info *info,
3769 struct mesh_config *cfg,
3772 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3775 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3777 if (table[attr_num]) {\
3778 cfg->param = nla_fn(table[attr_num]); \
3779 mask |= (1 << (attr_num - 1)); \
3784 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3786 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3787 info->attrs[NL80211_ATTR_MESH_CONFIG],
3788 nl80211_meshconf_params_policy))
3791 /* This makes sure that there aren't more than 32 mesh config
3792 * parameters (otherwise our bitfield scheme would not work.) */
3793 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3795 /* Fill in the params struct */
3796 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3797 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3799 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3800 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3802 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3803 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3805 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3806 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3808 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3809 mask, NL80211_MESHCONF_MAX_RETRIES,
3811 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3812 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3813 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3814 mask, NL80211_MESHCONF_ELEMENT_TTL,
3816 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3817 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3819 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3820 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3822 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3823 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3825 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3826 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3828 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3829 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3831 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3832 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3835 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3837 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3838 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3840 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3841 dot11MeshHWMPnetDiameterTraversalTime, mask,
3842 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3845 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3846 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3847 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3849 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3850 dot11MeshGateAnnouncementProtocol, mask,
3851 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3853 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3854 mask, NL80211_MESHCONF_FORWARDING,
3856 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3857 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3859 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3860 mask, NL80211_MESHCONF_HT_OPMODE,
3862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3864 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3866 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3867 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3870 dot11MeshHWMPconfirmationInterval, mask,
3871 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3878 #undef FILL_IN_MESH_PARAM_IF_SET
3881 static int nl80211_parse_mesh_setup(struct genl_info *info,
3882 struct mesh_setup *setup)
3884 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3886 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3888 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3889 info->attrs[NL80211_ATTR_MESH_SETUP],
3890 nl80211_mesh_setup_params_policy))
3893 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3894 setup->sync_method =
3895 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3896 IEEE80211_SYNC_METHOD_VENDOR :
3897 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3899 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3900 setup->path_sel_proto =
3901 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3902 IEEE80211_PATH_PROTOCOL_VENDOR :
3903 IEEE80211_PATH_PROTOCOL_HWMP;
3905 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3906 setup->path_metric =
3907 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3908 IEEE80211_PATH_METRIC_VENDOR :
3909 IEEE80211_PATH_METRIC_AIRTIME;
3912 if (tb[NL80211_MESH_SETUP_IE]) {
3913 struct nlattr *ieattr =
3914 tb[NL80211_MESH_SETUP_IE];
3915 if (!is_valid_ie_attr(ieattr))
3917 setup->ie = nla_data(ieattr);
3918 setup->ie_len = nla_len(ieattr);
3920 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3921 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3926 static int nl80211_update_mesh_config(struct sk_buff *skb,
3927 struct genl_info *info)
3929 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3930 struct net_device *dev = info->user_ptr[1];
3931 struct wireless_dev *wdev = dev->ieee80211_ptr;
3932 struct mesh_config cfg;
3936 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3939 if (!rdev->ops->update_mesh_config)
3942 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3947 if (!wdev->mesh_id_len)
3951 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3959 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3961 struct sk_buff *msg;
3963 struct nlattr *nl_reg_rules;
3967 mutex_lock(&cfg80211_mutex);
3969 if (!cfg80211_regdomain)
3972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3978 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3979 NL80211_CMD_GET_REG);
3983 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3984 cfg80211_regdomain->alpha2) ||
3985 (cfg80211_regdomain->dfs_region &&
3986 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3987 cfg80211_regdomain->dfs_region)))
3988 goto nla_put_failure;
3990 if (reg_last_request_cell_base() &&
3991 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
3992 NL80211_USER_REG_HINT_CELL_BASE))
3993 goto nla_put_failure;
3995 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3997 goto nla_put_failure;
3999 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4000 struct nlattr *nl_reg_rule;
4001 const struct ieee80211_reg_rule *reg_rule;
4002 const struct ieee80211_freq_range *freq_range;
4003 const struct ieee80211_power_rule *power_rule;
4005 reg_rule = &cfg80211_regdomain->reg_rules[i];
4006 freq_range = ®_rule->freq_range;
4007 power_rule = ®_rule->power_rule;
4009 nl_reg_rule = nla_nest_start(msg, i);
4011 goto nla_put_failure;
4013 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4015 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4016 freq_range->start_freq_khz) ||
4017 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4018 freq_range->end_freq_khz) ||
4019 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4020 freq_range->max_bandwidth_khz) ||
4021 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4022 power_rule->max_antenna_gain) ||
4023 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4024 power_rule->max_eirp))
4025 goto nla_put_failure;
4027 nla_nest_end(msg, nl_reg_rule);
4030 nla_nest_end(msg, nl_reg_rules);
4032 genlmsg_end(msg, hdr);
4033 err = genlmsg_reply(msg, info);
4037 genlmsg_cancel(msg, hdr);
4042 mutex_unlock(&cfg80211_mutex);
4046 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4048 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4049 struct nlattr *nl_reg_rule;
4050 char *alpha2 = NULL;
4051 int rem_reg_rules = 0, r = 0;
4052 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4054 struct ieee80211_regdomain *rd = NULL;
4056 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4059 if (!info->attrs[NL80211_ATTR_REG_RULES])
4062 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4064 if (info->attrs[NL80211_ATTR_DFS_REGION])
4065 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4067 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4070 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4074 mutex_lock(&cfg80211_mutex);
4076 if (!reg_is_valid_request(alpha2)) {
4081 size_of_regd = sizeof(struct ieee80211_regdomain) +
4082 (num_rules * sizeof(struct ieee80211_reg_rule));
4084 rd = kzalloc(size_of_regd, GFP_KERNEL);
4090 rd->n_reg_rules = num_rules;
4091 rd->alpha2[0] = alpha2[0];
4092 rd->alpha2[1] = alpha2[1];
4095 * Disable DFS master mode if the DFS region was
4096 * not supported or known on this kernel.
4098 if (reg_supported_dfs_region(dfs_region))
4099 rd->dfs_region = dfs_region;
4101 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4103 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4104 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4106 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4112 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4118 BUG_ON(rule_idx != num_rules);
4122 mutex_unlock(&cfg80211_mutex);
4127 mutex_unlock(&cfg80211_mutex);
4132 static int validate_scan_freqs(struct nlattr *freqs)
4134 struct nlattr *attr1, *attr2;
4135 int n_channels = 0, tmp1, tmp2;
4137 nla_for_each_nested(attr1, freqs, tmp1) {
4140 * Some hardware has a limited channel list for
4141 * scanning, and it is pretty much nonsensical
4142 * to scan for a channel twice, so disallow that
4143 * and don't require drivers to check that the
4144 * channel list they get isn't longer than what
4145 * they can scan, as long as they can scan all
4146 * the channels they registered at once.
4148 nla_for_each_nested(attr2, freqs, tmp2)
4149 if (attr1 != attr2 &&
4150 nla_get_u32(attr1) == nla_get_u32(attr2))
4157 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4159 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4160 struct wireless_dev *wdev = info->user_ptr[1];
4161 struct cfg80211_scan_request *request;
4162 struct nlattr *attr;
4163 struct wiphy *wiphy;
4164 int err, tmp, n_ssids = 0, n_channels, i;
4167 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4170 wiphy = &rdev->wiphy;
4172 if (!rdev->ops->scan)
4178 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4179 n_channels = validate_scan_freqs(
4180 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4184 enum ieee80211_band band;
4187 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4188 if (wiphy->bands[band])
4189 n_channels += wiphy->bands[band]->n_channels;
4192 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4193 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4196 if (n_ssids > wiphy->max_scan_ssids)
4199 if (info->attrs[NL80211_ATTR_IE])
4200 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4204 if (ie_len > wiphy->max_scan_ie_len)
4207 request = kzalloc(sizeof(*request)
4208 + sizeof(*request->ssids) * n_ssids
4209 + sizeof(*request->channels) * n_channels
4210 + ie_len, GFP_KERNEL);
4215 request->ssids = (void *)&request->channels[n_channels];
4216 request->n_ssids = n_ssids;
4219 request->ie = (void *)(request->ssids + n_ssids);
4221 request->ie = (void *)(request->channels + n_channels);
4225 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4226 /* user specified, bail out if channel not found */
4227 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4228 struct ieee80211_channel *chan;
4230 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4237 /* ignore disabled channels */
4238 if (chan->flags & IEEE80211_CHAN_DISABLED)
4241 request->channels[i] = chan;
4245 enum ieee80211_band band;
4248 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4250 if (!wiphy->bands[band])
4252 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4253 struct ieee80211_channel *chan;
4255 chan = &wiphy->bands[band]->channels[j];
4257 if (chan->flags & IEEE80211_CHAN_DISABLED)
4260 request->channels[i] = chan;
4271 request->n_channels = i;
4274 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4275 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4276 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4280 request->ssids[i].ssid_len = nla_len(attr);
4281 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4286 if (info->attrs[NL80211_ATTR_IE]) {
4287 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4288 memcpy((void *)request->ie,
4289 nla_data(info->attrs[NL80211_ATTR_IE]),
4293 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4294 if (wiphy->bands[i])
4296 (1 << wiphy->bands[i]->n_bitrates) - 1;
4298 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4299 nla_for_each_nested(attr,
4300 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4302 enum ieee80211_band band = nla_type(attr);
4304 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4308 err = ieee80211_get_ratemask(wiphy->bands[band],
4311 &request->rates[band]);
4318 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4320 request->wdev = wdev;
4321 request->wiphy = &rdev->wiphy;
4323 rdev->scan_req = request;
4324 err = rdev->ops->scan(&rdev->wiphy, request);
4327 nl80211_send_scan_start(rdev, wdev);
4329 dev_hold(wdev->netdev);
4332 rdev->scan_req = NULL;
4339 static int nl80211_start_sched_scan(struct sk_buff *skb,
4340 struct genl_info *info)
4342 struct cfg80211_sched_scan_request *request;
4343 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4344 struct net_device *dev = info->user_ptr[1];
4345 struct nlattr *attr;
4346 struct wiphy *wiphy;
4347 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4349 enum ieee80211_band band;
4351 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4353 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4354 !rdev->ops->sched_scan_start)
4357 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4360 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4363 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4367 wiphy = &rdev->wiphy;
4369 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4370 n_channels = validate_scan_freqs(
4371 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4377 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4378 if (wiphy->bands[band])
4379 n_channels += wiphy->bands[band]->n_channels;
4382 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4383 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4387 if (n_ssids > wiphy->max_sched_scan_ssids)
4390 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4391 nla_for_each_nested(attr,
4392 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4396 if (n_match_sets > wiphy->max_match_sets)
4399 if (info->attrs[NL80211_ATTR_IE])
4400 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4404 if (ie_len > wiphy->max_sched_scan_ie_len)
4407 mutex_lock(&rdev->sched_scan_mtx);
4409 if (rdev->sched_scan_req) {
4414 request = kzalloc(sizeof(*request)
4415 + sizeof(*request->ssids) * n_ssids
4416 + sizeof(*request->match_sets) * n_match_sets
4417 + sizeof(*request->channels) * n_channels
4418 + ie_len, GFP_KERNEL);
4425 request->ssids = (void *)&request->channels[n_channels];
4426 request->n_ssids = n_ssids;
4429 request->ie = (void *)(request->ssids + n_ssids);
4431 request->ie = (void *)(request->channels + n_channels);
4436 request->match_sets = (void *)(request->ie + ie_len);
4437 else if (request->ssids)
4438 request->match_sets =
4439 (void *)(request->ssids + n_ssids);
4441 request->match_sets =
4442 (void *)(request->channels + n_channels);
4444 request->n_match_sets = n_match_sets;
4447 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4448 /* user specified, bail out if channel not found */
4449 nla_for_each_nested(attr,
4450 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4452 struct ieee80211_channel *chan;
4454 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4461 /* ignore disabled channels */
4462 if (chan->flags & IEEE80211_CHAN_DISABLED)
4465 request->channels[i] = chan;
4470 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4472 if (!wiphy->bands[band])
4474 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4475 struct ieee80211_channel *chan;
4477 chan = &wiphy->bands[band]->channels[j];
4479 if (chan->flags & IEEE80211_CHAN_DISABLED)
4482 request->channels[i] = chan;
4493 request->n_channels = i;
4496 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4497 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4499 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4503 request->ssids[i].ssid_len = nla_len(attr);
4504 memcpy(request->ssids[i].ssid, nla_data(attr),
4511 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4512 nla_for_each_nested(attr,
4513 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4515 struct nlattr *ssid, *rssi;
4517 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4518 nla_data(attr), nla_len(attr),
4519 nl80211_match_policy);
4520 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4522 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4526 memcpy(request->match_sets[i].ssid.ssid,
4527 nla_data(ssid), nla_len(ssid));
4528 request->match_sets[i].ssid.ssid_len =
4531 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4533 request->rssi_thold = nla_get_u32(rssi);
4535 request->rssi_thold =
4536 NL80211_SCAN_RSSI_THOLD_OFF;
4541 if (info->attrs[NL80211_ATTR_IE]) {
4542 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4543 memcpy((void *)request->ie,
4544 nla_data(info->attrs[NL80211_ATTR_IE]),
4549 request->wiphy = &rdev->wiphy;
4550 request->interval = interval;
4552 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4554 rdev->sched_scan_req = request;
4555 nl80211_send_sched_scan(rdev, dev,
4556 NL80211_CMD_START_SCHED_SCAN);
4563 mutex_unlock(&rdev->sched_scan_mtx);
4567 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4568 struct genl_info *info)
4570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4573 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4574 !rdev->ops->sched_scan_stop)
4577 mutex_lock(&rdev->sched_scan_mtx);
4578 err = __cfg80211_stop_sched_scan(rdev, false);
4579 mutex_unlock(&rdev->sched_scan_mtx);
4584 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4586 struct cfg80211_registered_device *rdev,
4587 struct wireless_dev *wdev,
4588 struct cfg80211_internal_bss *intbss)
4590 struct cfg80211_bss *res = &intbss->pub;
4594 ASSERT_WDEV_LOCK(wdev);
4596 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4597 NL80211_CMD_NEW_SCAN_RESULTS);
4601 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4603 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4604 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4605 goto nla_put_failure;
4607 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4609 goto nla_put_failure;
4610 if ((!is_zero_ether_addr(res->bssid) &&
4611 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4612 (res->information_elements && res->len_information_elements &&
4613 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4614 res->len_information_elements,
4615 res->information_elements)) ||
4616 (res->beacon_ies && res->len_beacon_ies &&
4617 res->beacon_ies != res->information_elements &&
4618 nla_put(msg, NL80211_BSS_BEACON_IES,
4619 res->len_beacon_ies, res->beacon_ies)))
4620 goto nla_put_failure;
4622 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4623 goto nla_put_failure;
4624 if (res->beacon_interval &&
4625 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4626 goto nla_put_failure;
4627 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4628 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4629 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4630 jiffies_to_msecs(jiffies - intbss->ts)))
4631 goto nla_put_failure;
4633 switch (rdev->wiphy.signal_type) {
4634 case CFG80211_SIGNAL_TYPE_MBM:
4635 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4636 goto nla_put_failure;
4638 case CFG80211_SIGNAL_TYPE_UNSPEC:
4639 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4640 goto nla_put_failure;
4646 switch (wdev->iftype) {
4647 case NL80211_IFTYPE_P2P_CLIENT:
4648 case NL80211_IFTYPE_STATION:
4649 if (intbss == wdev->current_bss &&
4650 nla_put_u32(msg, NL80211_BSS_STATUS,
4651 NL80211_BSS_STATUS_ASSOCIATED))
4652 goto nla_put_failure;
4654 case NL80211_IFTYPE_ADHOC:
4655 if (intbss == wdev->current_bss &&
4656 nla_put_u32(msg, NL80211_BSS_STATUS,
4657 NL80211_BSS_STATUS_IBSS_JOINED))
4658 goto nla_put_failure;
4664 nla_nest_end(msg, bss);
4666 return genlmsg_end(msg, hdr);
4669 genlmsg_cancel(msg, hdr);
4673 static int nl80211_dump_scan(struct sk_buff *skb,
4674 struct netlink_callback *cb)
4676 struct cfg80211_registered_device *rdev;
4677 struct net_device *dev;
4678 struct cfg80211_internal_bss *scan;
4679 struct wireless_dev *wdev;
4680 int start = cb->args[1], idx = 0;
4683 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4687 wdev = dev->ieee80211_ptr;
4690 spin_lock_bh(&rdev->bss_lock);
4691 cfg80211_bss_expire(rdev);
4693 cb->seq = rdev->bss_generation;
4695 list_for_each_entry(scan, &rdev->bss_list, list) {
4698 if (nl80211_send_bss(skb, cb,
4699 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4700 rdev, wdev, scan) < 0) {
4706 spin_unlock_bh(&rdev->bss_lock);
4710 nl80211_finish_netdev_dump(rdev);
4715 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4716 int flags, struct net_device *dev,
4717 struct survey_info *survey)
4720 struct nlattr *infoattr;
4722 hdr = nl80211hdr_put(msg, pid, seq, flags,
4723 NL80211_CMD_NEW_SURVEY_RESULTS);
4727 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4728 goto nla_put_failure;
4730 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4732 goto nla_put_failure;
4734 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4735 survey->channel->center_freq))
4736 goto nla_put_failure;
4738 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4739 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4740 goto nla_put_failure;
4741 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4742 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4743 goto nla_put_failure;
4744 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4745 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4746 survey->channel_time))
4747 goto nla_put_failure;
4748 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4749 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4750 survey->channel_time_busy))
4751 goto nla_put_failure;
4752 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4753 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4754 survey->channel_time_ext_busy))
4755 goto nla_put_failure;
4756 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4757 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4758 survey->channel_time_rx))
4759 goto nla_put_failure;
4760 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4761 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4762 survey->channel_time_tx))
4763 goto nla_put_failure;
4765 nla_nest_end(msg, infoattr);
4767 return genlmsg_end(msg, hdr);
4770 genlmsg_cancel(msg, hdr);
4774 static int nl80211_dump_survey(struct sk_buff *skb,
4775 struct netlink_callback *cb)
4777 struct survey_info survey;
4778 struct cfg80211_registered_device *dev;
4779 struct net_device *netdev;
4780 int survey_idx = cb->args[1];
4783 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4787 if (!dev->ops->dump_survey) {
4793 struct ieee80211_channel *chan;
4795 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4802 /* Survey without a channel doesn't make sense */
4803 if (!survey.channel) {
4808 chan = ieee80211_get_channel(&dev->wiphy,
4809 survey.channel->center_freq);
4810 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4815 if (nl80211_send_survey(skb,
4816 NETLINK_CB(cb->skb).pid,
4817 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4825 cb->args[1] = survey_idx;
4828 nl80211_finish_netdev_dump(dev);
4832 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4834 return auth_type <= NL80211_AUTHTYPE_MAX;
4837 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4839 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4840 NL80211_WPA_VERSION_2));
4843 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4845 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4846 struct net_device *dev = info->user_ptr[1];
4847 struct ieee80211_channel *chan;
4848 const u8 *bssid, *ssid, *ie = NULL;
4849 int err, ssid_len, ie_len = 0;
4850 enum nl80211_auth_type auth_type;
4851 struct key_parse key;
4852 bool local_state_change;
4854 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4857 if (!info->attrs[NL80211_ATTR_MAC])
4860 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4863 if (!info->attrs[NL80211_ATTR_SSID])
4866 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4869 err = nl80211_parse_key(info, &key);
4874 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4876 if (!key.p.key || !key.p.key_len)
4878 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4879 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4880 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4881 key.p.key_len != WLAN_KEY_LEN_WEP104))
4893 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4894 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4903 if (!rdev->ops->auth)
4906 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4907 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4910 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4911 chan = ieee80211_get_channel(&rdev->wiphy,
4912 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4913 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4916 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4917 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4919 if (info->attrs[NL80211_ATTR_IE]) {
4920 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4921 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4924 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4925 if (!nl80211_valid_auth_type(auth_type))
4928 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4931 * Since we no longer track auth state, ignore
4932 * requests to only change local state.
4934 if (local_state_change)
4937 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4938 ssid, ssid_len, ie, ie_len,
4939 key.p.key, key.p.key_len, key.idx);
4942 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4943 struct genl_info *info,
4944 struct cfg80211_crypto_settings *settings,
4947 memset(settings, 0, sizeof(*settings));
4949 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4951 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4953 proto = nla_get_u16(
4954 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4955 settings->control_port_ethertype = cpu_to_be16(proto);
4956 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4959 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4960 settings->control_port_no_encrypt = true;
4962 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4964 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4968 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4969 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4970 settings->n_ciphers_pairwise = len / sizeof(u32);
4972 if (len % sizeof(u32))
4975 if (settings->n_ciphers_pairwise > cipher_limit)
4978 memcpy(settings->ciphers_pairwise, data, len);
4980 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4981 if (!cfg80211_supported_cipher_suite(
4983 settings->ciphers_pairwise[i]))
4987 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4988 settings->cipher_group =
4989 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4990 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4991 settings->cipher_group))
4995 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4996 settings->wpa_versions =
4997 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4998 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5002 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5006 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5007 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5008 settings->n_akm_suites = len / sizeof(u32);
5010 if (len % sizeof(u32))
5013 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5016 memcpy(settings->akm_suites, data, len);
5022 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5025 struct net_device *dev = info->user_ptr[1];
5026 struct cfg80211_crypto_settings crypto;
5027 struct ieee80211_channel *chan;
5028 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5029 int err, ssid_len, ie_len = 0;
5030 bool use_mfp = false;
5032 struct ieee80211_ht_cap *ht_capa = NULL;
5033 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5035 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5038 if (!info->attrs[NL80211_ATTR_MAC] ||
5039 !info->attrs[NL80211_ATTR_SSID] ||
5040 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5043 if (!rdev->ops->assoc)
5046 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5047 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5050 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5052 chan = ieee80211_get_channel(&rdev->wiphy,
5053 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5054 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5057 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5058 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5060 if (info->attrs[NL80211_ATTR_IE]) {
5061 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5062 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5065 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5066 enum nl80211_mfp mfp =
5067 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5068 if (mfp == NL80211_MFP_REQUIRED)
5070 else if (mfp != NL80211_MFP_NO)
5074 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5075 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5077 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5078 flags |= ASSOC_REQ_DISABLE_HT;
5080 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5082 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5084 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5087 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5090 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5092 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5093 ssid, ssid_len, ie, ie_len, use_mfp,
5094 &crypto, flags, ht_capa,
5100 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5103 struct net_device *dev = info->user_ptr[1];
5104 const u8 *ie = NULL, *bssid;
5107 bool local_state_change;
5109 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5112 if (!info->attrs[NL80211_ATTR_MAC])
5115 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5118 if (!rdev->ops->deauth)
5121 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5122 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5125 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5127 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5128 if (reason_code == 0) {
5129 /* Reason Code 0 is reserved */
5133 if (info->attrs[NL80211_ATTR_IE]) {
5134 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5135 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5138 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5140 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5141 local_state_change);
5144 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5147 struct net_device *dev = info->user_ptr[1];
5148 const u8 *ie = NULL, *bssid;
5151 bool local_state_change;
5153 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5156 if (!info->attrs[NL80211_ATTR_MAC])
5159 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5162 if (!rdev->ops->disassoc)
5165 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5166 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5169 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5171 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5172 if (reason_code == 0) {
5173 /* Reason Code 0 is reserved */
5177 if (info->attrs[NL80211_ATTR_IE]) {
5178 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5179 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5182 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5184 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5185 local_state_change);
5189 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5190 int mcast_rate[IEEE80211_NUM_BANDS],
5193 struct wiphy *wiphy = &rdev->wiphy;
5197 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5198 struct ieee80211_supported_band *sband;
5200 sband = wiphy->bands[band];
5204 for (i = 0; i < sband->n_bitrates; i++) {
5205 if (sband->bitrates[i].bitrate == rateval) {
5206 mcast_rate[band] = i + 1;
5216 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5219 struct net_device *dev = info->user_ptr[1];
5220 struct cfg80211_ibss_params ibss;
5221 struct wiphy *wiphy;
5222 struct cfg80211_cached_keys *connkeys = NULL;
5225 memset(&ibss, 0, sizeof(ibss));
5227 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5230 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5231 !info->attrs[NL80211_ATTR_SSID] ||
5232 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5235 ibss.beacon_interval = 100;
5237 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5238 ibss.beacon_interval =
5239 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5240 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5244 if (!rdev->ops->join_ibss)
5247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5250 wiphy = &rdev->wiphy;
5252 if (info->attrs[NL80211_ATTR_MAC]) {
5253 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5255 if (!is_valid_ether_addr(ibss.bssid))
5258 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5259 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5261 if (info->attrs[NL80211_ATTR_IE]) {
5262 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5263 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5266 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5267 enum nl80211_channel_type channel_type;
5269 if (!nl80211_valid_channel_type(info, &channel_type))
5272 if (channel_type != NL80211_CHAN_NO_HT &&
5273 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5276 ibss.channel_type = channel_type;
5278 ibss.channel_type = NL80211_CHAN_NO_HT;
5281 ibss.channel = rdev_freq_to_chan(rdev,
5282 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5284 if (!ibss.channel ||
5285 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5286 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5289 /* Both channels should be able to initiate communication */
5290 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5291 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5292 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5296 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5297 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5299 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5301 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5303 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5304 struct ieee80211_supported_band *sband =
5305 wiphy->bands[ibss.channel->band];
5307 err = ieee80211_get_ratemask(sband, rates, n_rates,
5313 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5314 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5315 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5318 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5319 connkeys = nl80211_parse_connkeys(rdev,
5320 info->attrs[NL80211_ATTR_KEYS]);
5321 if (IS_ERR(connkeys))
5322 return PTR_ERR(connkeys);
5326 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5328 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5334 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5337 struct net_device *dev = info->user_ptr[1];
5339 if (!rdev->ops->leave_ibss)
5342 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5345 return cfg80211_leave_ibss(rdev, dev, false);
5348 #ifdef CONFIG_NL80211_TESTMODE
5349 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5353 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5358 if (!info->attrs[NL80211_ATTR_TESTDATA])
5362 if (rdev->ops->testmode_cmd) {
5363 rdev->testmode_info = info;
5364 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5365 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5366 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5367 rdev->testmode_info = NULL;
5373 static int nl80211_testmode_dump(struct sk_buff *skb,
5374 struct netlink_callback *cb)
5376 struct cfg80211_registered_device *rdev;
5384 * 0 is a valid index, but not valid for args[0],
5385 * so we need to offset by 1.
5387 phy_idx = cb->args[0] - 1;
5389 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5390 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5395 mutex_lock(&cfg80211_mutex);
5396 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5397 nl80211_fam.attrbuf);
5399 mutex_unlock(&cfg80211_mutex);
5400 return PTR_ERR(rdev);
5402 phy_idx = rdev->wiphy_idx;
5404 mutex_unlock(&cfg80211_mutex);
5406 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5408 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5412 data = nla_data((void *)cb->args[1]);
5413 data_len = nla_len((void *)cb->args[1]);
5416 mutex_lock(&cfg80211_mutex);
5417 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5419 mutex_unlock(&cfg80211_mutex);
5422 cfg80211_lock_rdev(rdev);
5423 mutex_unlock(&cfg80211_mutex);
5425 if (!rdev->ops->testmode_dump) {
5431 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5432 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5433 NL80211_CMD_TESTMODE);
5434 struct nlattr *tmdata;
5436 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5437 genlmsg_cancel(skb, hdr);
5441 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5443 genlmsg_cancel(skb, hdr);
5446 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5448 nla_nest_end(skb, tmdata);
5450 if (err == -ENOBUFS || err == -ENOENT) {
5451 genlmsg_cancel(skb, hdr);
5454 genlmsg_cancel(skb, hdr);
5458 genlmsg_end(skb, hdr);
5463 cb->args[0] = phy_idx + 1;
5465 cfg80211_unlock_rdev(rdev);
5469 static struct sk_buff *
5470 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5471 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5473 struct sk_buff *skb;
5475 struct nlattr *data;
5477 skb = nlmsg_new(approxlen + 100, gfp);
5481 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5487 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5488 goto nla_put_failure;
5489 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5491 ((void **)skb->cb)[0] = rdev;
5492 ((void **)skb->cb)[1] = hdr;
5493 ((void **)skb->cb)[2] = data;
5502 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5505 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5507 if (WARN_ON(!rdev->testmode_info))
5510 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5511 rdev->testmode_info->snd_pid,
5512 rdev->testmode_info->snd_seq,
5515 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5517 int cfg80211_testmode_reply(struct sk_buff *skb)
5519 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5520 void *hdr = ((void **)skb->cb)[1];
5521 struct nlattr *data = ((void **)skb->cb)[2];
5523 if (WARN_ON(!rdev->testmode_info)) {
5528 nla_nest_end(skb, data);
5529 genlmsg_end(skb, hdr);
5530 return genlmsg_reply(skb, rdev->testmode_info);
5532 EXPORT_SYMBOL(cfg80211_testmode_reply);
5534 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5535 int approxlen, gfp_t gfp)
5537 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5539 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5541 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5543 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5545 void *hdr = ((void **)skb->cb)[1];
5546 struct nlattr *data = ((void **)skb->cb)[2];
5548 nla_nest_end(skb, data);
5549 genlmsg_end(skb, hdr);
5550 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5552 EXPORT_SYMBOL(cfg80211_testmode_event);
5555 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5558 struct net_device *dev = info->user_ptr[1];
5559 struct cfg80211_connect_params connect;
5560 struct wiphy *wiphy;
5561 struct cfg80211_cached_keys *connkeys = NULL;
5564 memset(&connect, 0, sizeof(connect));
5566 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5569 if (!info->attrs[NL80211_ATTR_SSID] ||
5570 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5573 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5575 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5576 if (!nl80211_valid_auth_type(connect.auth_type))
5579 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5581 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5583 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5584 NL80211_MAX_NR_CIPHER_SUITES);
5588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5589 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5592 wiphy = &rdev->wiphy;
5594 connect.bg_scan_period = -1;
5595 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5596 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5597 connect.bg_scan_period =
5598 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5601 if (info->attrs[NL80211_ATTR_MAC])
5602 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5603 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5604 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5606 if (info->attrs[NL80211_ATTR_IE]) {
5607 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5608 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5611 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5613 ieee80211_get_channel(wiphy,
5614 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5615 if (!connect.channel ||
5616 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5620 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5621 connkeys = nl80211_parse_connkeys(rdev,
5622 info->attrs[NL80211_ATTR_KEYS]);
5623 if (IS_ERR(connkeys))
5624 return PTR_ERR(connkeys);
5627 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5628 connect.flags |= ASSOC_REQ_DISABLE_HT;
5630 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5631 memcpy(&connect.ht_capa_mask,
5632 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5633 sizeof(connect.ht_capa_mask));
5635 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5636 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5638 memcpy(&connect.ht_capa,
5639 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5640 sizeof(connect.ht_capa));
5643 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5649 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5651 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5652 struct net_device *dev = info->user_ptr[1];
5655 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5656 reason = WLAN_REASON_DEAUTH_LEAVING;
5658 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5663 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5664 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5667 return cfg80211_disconnect(rdev, dev, reason, true);
5670 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5677 if (!info->attrs[NL80211_ATTR_PID])
5680 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5682 net = get_net_ns_by_pid(pid);
5684 return PTR_ERR(net);
5688 /* check if anything to do */
5689 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5690 err = cfg80211_switch_netns(rdev, net);
5696 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5699 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5700 struct cfg80211_pmksa *pmksa) = NULL;
5701 struct net_device *dev = info->user_ptr[1];
5702 struct cfg80211_pmksa pmksa;
5704 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5706 if (!info->attrs[NL80211_ATTR_MAC])
5709 if (!info->attrs[NL80211_ATTR_PMKID])
5712 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5713 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5715 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5716 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5719 switch (info->genlhdr->cmd) {
5720 case NL80211_CMD_SET_PMKSA:
5721 rdev_ops = rdev->ops->set_pmksa;
5723 case NL80211_CMD_DEL_PMKSA:
5724 rdev_ops = rdev->ops->del_pmksa;
5734 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5737 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5740 struct net_device *dev = info->user_ptr[1];
5742 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5743 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5746 if (!rdev->ops->flush_pmksa)
5749 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5752 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5755 struct net_device *dev = info->user_ptr[1];
5756 u8 action_code, dialog_token;
5760 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5761 !rdev->ops->tdls_mgmt)
5764 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5765 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5766 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5767 !info->attrs[NL80211_ATTR_IE] ||
5768 !info->attrs[NL80211_ATTR_MAC])
5771 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5772 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5773 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5774 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5776 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5777 dialog_token, status_code,
5778 nla_data(info->attrs[NL80211_ATTR_IE]),
5779 nla_len(info->attrs[NL80211_ATTR_IE]));
5782 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5785 struct net_device *dev = info->user_ptr[1];
5786 enum nl80211_tdls_operation operation;
5789 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5790 !rdev->ops->tdls_oper)
5793 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5794 !info->attrs[NL80211_ATTR_MAC])
5797 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5798 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5800 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5803 static int nl80211_remain_on_channel(struct sk_buff *skb,
5804 struct genl_info *info)
5806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5807 struct wireless_dev *wdev = info->user_ptr[1];
5808 struct ieee80211_channel *chan;
5809 struct sk_buff *msg;
5812 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5816 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5817 !info->attrs[NL80211_ATTR_DURATION])
5820 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5822 if (!rdev->ops->remain_on_channel ||
5823 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5827 * We should be on that channel for at least a minimum amount of
5828 * time (10ms) but no longer than the driver supports.
5830 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5831 duration > rdev->wiphy.max_remain_on_channel_duration)
5834 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5835 !nl80211_valid_channel_type(info, &channel_type))
5838 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5839 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5843 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5847 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5848 NL80211_CMD_REMAIN_ON_CHANNEL);
5855 err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
5856 channel_type, duration, &cookie);
5861 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5862 goto nla_put_failure;
5864 genlmsg_end(msg, hdr);
5866 return genlmsg_reply(msg, info);
5875 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5876 struct genl_info *info)
5878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5879 struct wireless_dev *wdev = info->user_ptr[1];
5882 if (!info->attrs[NL80211_ATTR_COOKIE])
5885 if (!rdev->ops->cancel_remain_on_channel)
5888 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5890 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
5893 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5894 u8 *rates, u8 rates_len)
5899 for (i = 0; i < rates_len; i++) {
5900 int rate = (rates[i] & 0x7f) * 5;
5902 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5903 struct ieee80211_rate *srate =
5904 &sband->bitrates[ridx];
5905 if (rate == srate->bitrate) {
5910 if (ridx == sband->n_bitrates)
5911 return 0; /* rate not found */
5917 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5918 u8 *rates, u8 rates_len,
5919 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5923 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5925 for (i = 0; i < rates_len; i++) {
5928 ridx = rates[i] / 8;
5929 rbit = BIT(rates[i] % 8);
5931 /* check validity */
5932 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5935 /* check availability */
5936 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5945 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5946 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5947 .len = NL80211_MAX_SUPP_RATES },
5948 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5949 .len = NL80211_MAX_SUPP_HT_RATES },
5952 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5953 struct genl_info *info)
5955 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5957 struct cfg80211_bitrate_mask mask;
5959 struct net_device *dev = info->user_ptr[1];
5960 struct nlattr *tx_rates;
5961 struct ieee80211_supported_band *sband;
5963 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5966 if (!rdev->ops->set_bitrate_mask)
5969 memset(&mask, 0, sizeof(mask));
5970 /* Default to all rates enabled */
5971 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5972 sband = rdev->wiphy.bands[i];
5973 mask.control[i].legacy =
5974 sband ? (1 << sband->n_bitrates) - 1 : 0;
5976 memcpy(mask.control[i].mcs,
5977 sband->ht_cap.mcs.rx_mask,
5978 sizeof(mask.control[i].mcs));
5980 memset(mask.control[i].mcs, 0,
5981 sizeof(mask.control[i].mcs));
5985 * The nested attribute uses enum nl80211_band as the index. This maps
5986 * directly to the enum ieee80211_band values used in cfg80211.
5988 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5989 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5991 enum ieee80211_band band = nla_type(tx_rates);
5992 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5994 sband = rdev->wiphy.bands[band];
5997 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5998 nla_len(tx_rates), nl80211_txattr_policy);
5999 if (tb[NL80211_TXRATE_LEGACY]) {
6000 mask.control[band].legacy = rateset_to_mask(
6002 nla_data(tb[NL80211_TXRATE_LEGACY]),
6003 nla_len(tb[NL80211_TXRATE_LEGACY]));
6004 if ((mask.control[band].legacy == 0) &&
6005 nla_len(tb[NL80211_TXRATE_LEGACY]))
6008 if (tb[NL80211_TXRATE_MCS]) {
6009 if (!ht_rateset_to_mask(
6011 nla_data(tb[NL80211_TXRATE_MCS]),
6012 nla_len(tb[NL80211_TXRATE_MCS]),
6013 mask.control[band].mcs))
6017 if (mask.control[band].legacy == 0) {
6018 /* don't allow empty legacy rates if HT
6019 * is not even supported. */
6020 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6023 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6024 if (mask.control[band].mcs[i])
6027 /* legacy and mcs rates may not be both empty */
6028 if (i == IEEE80211_HT_MCS_MASK_LEN)
6033 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
6036 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6038 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6039 struct wireless_dev *wdev = info->user_ptr[1];
6040 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6042 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6045 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6046 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6048 switch (wdev->iftype) {
6049 case NL80211_IFTYPE_STATION:
6050 case NL80211_IFTYPE_ADHOC:
6051 case NL80211_IFTYPE_P2P_CLIENT:
6052 case NL80211_IFTYPE_AP:
6053 case NL80211_IFTYPE_AP_VLAN:
6054 case NL80211_IFTYPE_MESH_POINT:
6055 case NL80211_IFTYPE_P2P_GO:
6061 /* not much point in registering if we can't reply */
6062 if (!rdev->ops->mgmt_tx)
6065 return cfg80211_mlme_register_mgmt(wdev, info->snd_pid, frame_type,
6066 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6067 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6070 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6073 struct wireless_dev *wdev = info->user_ptr[1];
6074 struct ieee80211_channel *chan;
6075 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6076 bool channel_type_valid = false;
6081 struct sk_buff *msg = NULL;
6082 unsigned int wait = 0;
6083 bool offchan, no_cck, dont_wait_for_ack;
6085 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6087 if (!info->attrs[NL80211_ATTR_FRAME] ||
6088 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6091 if (!rdev->ops->mgmt_tx)
6094 switch (wdev->iftype) {
6095 case NL80211_IFTYPE_STATION:
6096 case NL80211_IFTYPE_ADHOC:
6097 case NL80211_IFTYPE_P2P_CLIENT:
6098 case NL80211_IFTYPE_AP:
6099 case NL80211_IFTYPE_AP_VLAN:
6100 case NL80211_IFTYPE_MESH_POINT:
6101 case NL80211_IFTYPE_P2P_GO:
6107 if (info->attrs[NL80211_ATTR_DURATION]) {
6108 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6110 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6113 * We should wait on the channel for at least a minimum amount
6114 * of time (10ms) but no longer than the driver supports.
6116 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6117 wait > rdev->wiphy.max_remain_on_channel_duration)
6122 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6123 if (!nl80211_valid_channel_type(info, &channel_type))
6125 channel_type_valid = true;
6128 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6130 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6133 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6135 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6136 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6140 if (!dont_wait_for_ack) {
6141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6145 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6154 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
6155 channel_type_valid, wait,
6156 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6157 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6158 no_cck, dont_wait_for_ack, &cookie);
6163 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6164 goto nla_put_failure;
6166 genlmsg_end(msg, hdr);
6167 return genlmsg_reply(msg, info);
6179 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6182 struct wireless_dev *wdev = info->user_ptr[1];
6185 if (!info->attrs[NL80211_ATTR_COOKIE])
6188 if (!rdev->ops->mgmt_tx_cancel_wait)
6191 switch (wdev->iftype) {
6192 case NL80211_IFTYPE_STATION:
6193 case NL80211_IFTYPE_ADHOC:
6194 case NL80211_IFTYPE_P2P_CLIENT:
6195 case NL80211_IFTYPE_AP:
6196 case NL80211_IFTYPE_AP_VLAN:
6197 case NL80211_IFTYPE_P2P_GO:
6203 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6205 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
6208 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6211 struct wireless_dev *wdev;
6212 struct net_device *dev = info->user_ptr[1];
6217 if (!info->attrs[NL80211_ATTR_PS_STATE])
6220 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6222 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6225 wdev = dev->ieee80211_ptr;
6227 if (!rdev->ops->set_power_mgmt)
6230 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6232 if (state == wdev->ps)
6235 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6242 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6245 enum nl80211_ps_state ps_state;
6246 struct wireless_dev *wdev;
6247 struct net_device *dev = info->user_ptr[1];
6248 struct sk_buff *msg;
6252 wdev = dev->ieee80211_ptr;
6254 if (!rdev->ops->set_power_mgmt)
6257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6261 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6262 NL80211_CMD_GET_POWER_SAVE);
6269 ps_state = NL80211_PS_ENABLED;
6271 ps_state = NL80211_PS_DISABLED;
6273 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6274 goto nla_put_failure;
6276 genlmsg_end(msg, hdr);
6277 return genlmsg_reply(msg, info);
6286 static struct nla_policy
6287 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6288 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6289 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6290 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6291 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6292 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6293 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6296 static int nl80211_set_cqm_txe(struct genl_info *info,
6297 u32 rate, u32 pkts, u32 intvl)
6299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6300 struct wireless_dev *wdev;
6301 struct net_device *dev = info->user_ptr[1];
6303 if ((rate < 0 || rate > 100) ||
6304 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6307 wdev = dev->ieee80211_ptr;
6309 if (!rdev->ops->set_cqm_txe_config)
6312 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6313 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6316 return rdev->ops->set_cqm_txe_config(wdev->wiphy, dev,
6320 static int nl80211_set_cqm_rssi(struct genl_info *info,
6321 s32 threshold, u32 hysteresis)
6323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6324 struct wireless_dev *wdev;
6325 struct net_device *dev = info->user_ptr[1];
6330 wdev = dev->ieee80211_ptr;
6332 if (!rdev->ops->set_cqm_rssi_config)
6335 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6336 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6339 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6340 threshold, hysteresis);
6343 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6345 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6349 cqm = info->attrs[NL80211_ATTR_CQM];
6355 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6356 nl80211_attr_cqm_policy);
6360 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6361 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6364 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6365 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6366 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6367 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6368 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6369 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6370 u32 rate, pkts, intvl;
6371 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6372 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6373 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6374 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6382 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6384 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6385 struct net_device *dev = info->user_ptr[1];
6386 struct mesh_config cfg;
6387 struct mesh_setup setup;
6390 /* start with default */
6391 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6392 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6394 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6395 /* and parse parameters if given */
6396 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6401 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6402 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6405 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6406 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6408 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6409 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6410 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6413 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6414 /* parse additional setup parameters if given */
6415 err = nl80211_parse_mesh_setup(info, &setup);
6420 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6421 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6423 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6424 !nl80211_valid_channel_type(info, &channel_type))
6427 setup.channel = rdev_freq_to_chan(rdev,
6428 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6432 setup.channel_type = channel_type;
6434 /* cfg80211_join_mesh() will sort it out */
6435 setup.channel = NULL;
6438 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6441 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6444 struct net_device *dev = info->user_ptr[1];
6446 return cfg80211_leave_mesh(rdev, dev);
6450 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6453 struct sk_buff *msg;
6456 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6459 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6463 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6464 NL80211_CMD_GET_WOWLAN);
6466 goto nla_put_failure;
6469 struct nlattr *nl_wowlan;
6471 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6473 goto nla_put_failure;
6475 if ((rdev->wowlan->any &&
6476 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6477 (rdev->wowlan->disconnect &&
6478 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6479 (rdev->wowlan->magic_pkt &&
6480 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6481 (rdev->wowlan->gtk_rekey_failure &&
6482 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6483 (rdev->wowlan->eap_identity_req &&
6484 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6485 (rdev->wowlan->four_way_handshake &&
6486 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6487 (rdev->wowlan->rfkill_release &&
6488 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6489 goto nla_put_failure;
6490 if (rdev->wowlan->n_patterns) {
6491 struct nlattr *nl_pats, *nl_pat;
6494 nl_pats = nla_nest_start(msg,
6495 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6497 goto nla_put_failure;
6499 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6500 nl_pat = nla_nest_start(msg, i + 1);
6502 goto nla_put_failure;
6503 pat_len = rdev->wowlan->patterns[i].pattern_len;
6504 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6505 DIV_ROUND_UP(pat_len, 8),
6506 rdev->wowlan->patterns[i].mask) ||
6507 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6509 rdev->wowlan->patterns[i].pattern))
6510 goto nla_put_failure;
6511 nla_nest_end(msg, nl_pat);
6513 nla_nest_end(msg, nl_pats);
6516 nla_nest_end(msg, nl_wowlan);
6519 genlmsg_end(msg, hdr);
6520 return genlmsg_reply(msg, info);
6527 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6530 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6531 struct cfg80211_wowlan new_triggers = {};
6532 struct cfg80211_wowlan *ntrig;
6533 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6535 bool prev_enabled = rdev->wowlan;
6537 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6540 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6541 cfg80211_rdev_free_wowlan(rdev);
6542 rdev->wowlan = NULL;
6546 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6547 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6548 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6549 nl80211_wowlan_policy);
6553 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6554 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6556 new_triggers.any = true;
6559 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6560 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6562 new_triggers.disconnect = true;
6565 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6566 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6568 new_triggers.magic_pkt = true;
6571 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6574 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6575 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6577 new_triggers.gtk_rekey_failure = true;
6580 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6581 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6583 new_triggers.eap_identity_req = true;
6586 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6587 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6589 new_triggers.four_way_handshake = true;
6592 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6593 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6595 new_triggers.rfkill_release = true;
6598 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6601 int rem, pat_len, mask_len;
6602 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6604 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6607 if (n_patterns > wowlan->n_patterns)
6610 new_triggers.patterns = kcalloc(n_patterns,
6611 sizeof(new_triggers.patterns[0]),
6613 if (!new_triggers.patterns)
6616 new_triggers.n_patterns = n_patterns;
6619 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6621 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6622 nla_data(pat), nla_len(pat), NULL);
6624 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6625 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6627 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6628 mask_len = DIV_ROUND_UP(pat_len, 8);
6629 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6632 if (pat_len > wowlan->pattern_max_len ||
6633 pat_len < wowlan->pattern_min_len)
6636 new_triggers.patterns[i].mask =
6637 kmalloc(mask_len + pat_len, GFP_KERNEL);
6638 if (!new_triggers.patterns[i].mask) {
6642 new_triggers.patterns[i].pattern =
6643 new_triggers.patterns[i].mask + mask_len;
6644 memcpy(new_triggers.patterns[i].mask,
6645 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6647 new_triggers.patterns[i].pattern_len = pat_len;
6648 memcpy(new_triggers.patterns[i].pattern,
6649 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6655 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6660 cfg80211_rdev_free_wowlan(rdev);
6661 rdev->wowlan = ntrig;
6664 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6665 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6669 for (i = 0; i < new_triggers.n_patterns; i++)
6670 kfree(new_triggers.patterns[i].mask);
6671 kfree(new_triggers.patterns);
6676 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6679 struct net_device *dev = info->user_ptr[1];
6680 struct wireless_dev *wdev = dev->ieee80211_ptr;
6681 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6682 struct cfg80211_gtk_rekey_data rekey_data;
6685 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6688 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6689 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6690 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6691 nl80211_rekey_policy);
6695 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6697 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6699 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6702 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6704 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6706 memcpy(rekey_data.replay_ctr,
6707 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6708 NL80211_REPLAY_CTR_LEN);
6711 if (!wdev->current_bss) {
6716 if (!rdev->ops->set_rekey_data) {
6721 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6727 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6728 struct genl_info *info)
6730 struct net_device *dev = info->user_ptr[1];
6731 struct wireless_dev *wdev = dev->ieee80211_ptr;
6733 if (wdev->iftype != NL80211_IFTYPE_AP &&
6734 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6737 if (wdev->ap_unexpected_nlpid)
6740 wdev->ap_unexpected_nlpid = info->snd_pid;
6744 static int nl80211_probe_client(struct sk_buff *skb,
6745 struct genl_info *info)
6747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6748 struct net_device *dev = info->user_ptr[1];
6749 struct wireless_dev *wdev = dev->ieee80211_ptr;
6750 struct sk_buff *msg;
6756 if (wdev->iftype != NL80211_IFTYPE_AP &&
6757 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6760 if (!info->attrs[NL80211_ATTR_MAC])
6763 if (!rdev->ops->probe_client)
6766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6770 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6771 NL80211_CMD_PROBE_CLIENT);
6778 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6780 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6784 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6785 goto nla_put_failure;
6787 genlmsg_end(msg, hdr);
6789 return genlmsg_reply(msg, info);
6798 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6802 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6805 if (rdev->ap_beacons_nlpid)
6808 rdev->ap_beacons_nlpid = info->snd_pid;
6813 #define NL80211_FLAG_NEED_WIPHY 0x01
6814 #define NL80211_FLAG_NEED_NETDEV 0x02
6815 #define NL80211_FLAG_NEED_RTNL 0x04
6816 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6817 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6818 NL80211_FLAG_CHECK_NETDEV_UP)
6819 #define NL80211_FLAG_NEED_WDEV 0x10
6820 /* If a netdev is associated, it must be UP */
6821 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6822 NL80211_FLAG_CHECK_NETDEV_UP)
6824 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6825 struct genl_info *info)
6827 struct cfg80211_registered_device *rdev;
6828 struct wireless_dev *wdev;
6829 struct net_device *dev;
6830 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6835 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6836 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6840 return PTR_ERR(rdev);
6842 info->user_ptr[0] = rdev;
6843 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
6844 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6845 mutex_lock(&cfg80211_mutex);
6846 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6849 mutex_unlock(&cfg80211_mutex);
6852 return PTR_ERR(wdev);
6856 rdev = wiphy_to_dev(wdev->wiphy);
6858 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6860 mutex_unlock(&cfg80211_mutex);
6866 info->user_ptr[1] = dev;
6868 info->user_ptr[1] = wdev;
6872 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6873 !netif_running(dev)) {
6874 mutex_unlock(&cfg80211_mutex);
6883 cfg80211_lock_rdev(rdev);
6885 mutex_unlock(&cfg80211_mutex);
6887 info->user_ptr[0] = rdev;
6893 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6894 struct genl_info *info)
6896 if (info->user_ptr[0])
6897 cfg80211_unlock_rdev(info->user_ptr[0]);
6898 if (info->user_ptr[1]) {
6899 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6900 struct wireless_dev *wdev = info->user_ptr[1];
6903 dev_put(wdev->netdev);
6905 dev_put(info->user_ptr[1]);
6908 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6912 static struct genl_ops nl80211_ops[] = {
6914 .cmd = NL80211_CMD_GET_WIPHY,
6915 .doit = nl80211_get_wiphy,
6916 .dumpit = nl80211_dump_wiphy,
6917 .policy = nl80211_policy,
6918 /* can be retrieved by unprivileged users */
6919 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6922 .cmd = NL80211_CMD_SET_WIPHY,
6923 .doit = nl80211_set_wiphy,
6924 .policy = nl80211_policy,
6925 .flags = GENL_ADMIN_PERM,
6926 .internal_flags = NL80211_FLAG_NEED_RTNL,
6929 .cmd = NL80211_CMD_GET_INTERFACE,
6930 .doit = nl80211_get_interface,
6931 .dumpit = nl80211_dump_interface,
6932 .policy = nl80211_policy,
6933 /* can be retrieved by unprivileged users */
6934 .internal_flags = NL80211_FLAG_NEED_WDEV,
6937 .cmd = NL80211_CMD_SET_INTERFACE,
6938 .doit = nl80211_set_interface,
6939 .policy = nl80211_policy,
6940 .flags = GENL_ADMIN_PERM,
6941 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6942 NL80211_FLAG_NEED_RTNL,
6945 .cmd = NL80211_CMD_NEW_INTERFACE,
6946 .doit = nl80211_new_interface,
6947 .policy = nl80211_policy,
6948 .flags = GENL_ADMIN_PERM,
6949 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6950 NL80211_FLAG_NEED_RTNL,
6953 .cmd = NL80211_CMD_DEL_INTERFACE,
6954 .doit = nl80211_del_interface,
6955 .policy = nl80211_policy,
6956 .flags = GENL_ADMIN_PERM,
6957 .internal_flags = NL80211_FLAG_NEED_WDEV |
6958 NL80211_FLAG_NEED_RTNL,
6961 .cmd = NL80211_CMD_GET_KEY,
6962 .doit = nl80211_get_key,
6963 .policy = nl80211_policy,
6964 .flags = GENL_ADMIN_PERM,
6965 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6966 NL80211_FLAG_NEED_RTNL,
6969 .cmd = NL80211_CMD_SET_KEY,
6970 .doit = nl80211_set_key,
6971 .policy = nl80211_policy,
6972 .flags = GENL_ADMIN_PERM,
6973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6974 NL80211_FLAG_NEED_RTNL,
6977 .cmd = NL80211_CMD_NEW_KEY,
6978 .doit = nl80211_new_key,
6979 .policy = nl80211_policy,
6980 .flags = GENL_ADMIN_PERM,
6981 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6982 NL80211_FLAG_NEED_RTNL,
6985 .cmd = NL80211_CMD_DEL_KEY,
6986 .doit = nl80211_del_key,
6987 .policy = nl80211_policy,
6988 .flags = GENL_ADMIN_PERM,
6989 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6990 NL80211_FLAG_NEED_RTNL,
6993 .cmd = NL80211_CMD_SET_BEACON,
6994 .policy = nl80211_policy,
6995 .flags = GENL_ADMIN_PERM,
6996 .doit = nl80211_set_beacon,
6997 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6998 NL80211_FLAG_NEED_RTNL,
7001 .cmd = NL80211_CMD_START_AP,
7002 .policy = nl80211_policy,
7003 .flags = GENL_ADMIN_PERM,
7004 .doit = nl80211_start_ap,
7005 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7006 NL80211_FLAG_NEED_RTNL,
7009 .cmd = NL80211_CMD_STOP_AP,
7010 .policy = nl80211_policy,
7011 .flags = GENL_ADMIN_PERM,
7012 .doit = nl80211_stop_ap,
7013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7014 NL80211_FLAG_NEED_RTNL,
7017 .cmd = NL80211_CMD_GET_STATION,
7018 .doit = nl80211_get_station,
7019 .dumpit = nl80211_dump_station,
7020 .policy = nl80211_policy,
7021 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7022 NL80211_FLAG_NEED_RTNL,
7025 .cmd = NL80211_CMD_SET_STATION,
7026 .doit = nl80211_set_station,
7027 .policy = nl80211_policy,
7028 .flags = GENL_ADMIN_PERM,
7029 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7030 NL80211_FLAG_NEED_RTNL,
7033 .cmd = NL80211_CMD_NEW_STATION,
7034 .doit = nl80211_new_station,
7035 .policy = nl80211_policy,
7036 .flags = GENL_ADMIN_PERM,
7037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7038 NL80211_FLAG_NEED_RTNL,
7041 .cmd = NL80211_CMD_DEL_STATION,
7042 .doit = nl80211_del_station,
7043 .policy = nl80211_policy,
7044 .flags = GENL_ADMIN_PERM,
7045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7046 NL80211_FLAG_NEED_RTNL,
7049 .cmd = NL80211_CMD_GET_MPATH,
7050 .doit = nl80211_get_mpath,
7051 .dumpit = nl80211_dump_mpath,
7052 .policy = nl80211_policy,
7053 .flags = GENL_ADMIN_PERM,
7054 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7055 NL80211_FLAG_NEED_RTNL,
7058 .cmd = NL80211_CMD_SET_MPATH,
7059 .doit = nl80211_set_mpath,
7060 .policy = nl80211_policy,
7061 .flags = GENL_ADMIN_PERM,
7062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7063 NL80211_FLAG_NEED_RTNL,
7066 .cmd = NL80211_CMD_NEW_MPATH,
7067 .doit = nl80211_new_mpath,
7068 .policy = nl80211_policy,
7069 .flags = GENL_ADMIN_PERM,
7070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7071 NL80211_FLAG_NEED_RTNL,
7074 .cmd = NL80211_CMD_DEL_MPATH,
7075 .doit = nl80211_del_mpath,
7076 .policy = nl80211_policy,
7077 .flags = GENL_ADMIN_PERM,
7078 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7079 NL80211_FLAG_NEED_RTNL,
7082 .cmd = NL80211_CMD_SET_BSS,
7083 .doit = nl80211_set_bss,
7084 .policy = nl80211_policy,
7085 .flags = GENL_ADMIN_PERM,
7086 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7087 NL80211_FLAG_NEED_RTNL,
7090 .cmd = NL80211_CMD_GET_REG,
7091 .doit = nl80211_get_reg,
7092 .policy = nl80211_policy,
7093 /* can be retrieved by unprivileged users */
7096 .cmd = NL80211_CMD_SET_REG,
7097 .doit = nl80211_set_reg,
7098 .policy = nl80211_policy,
7099 .flags = GENL_ADMIN_PERM,
7102 .cmd = NL80211_CMD_REQ_SET_REG,
7103 .doit = nl80211_req_set_reg,
7104 .policy = nl80211_policy,
7105 .flags = GENL_ADMIN_PERM,
7108 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7109 .doit = nl80211_get_mesh_config,
7110 .policy = nl80211_policy,
7111 /* can be retrieved by unprivileged users */
7112 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7113 NL80211_FLAG_NEED_RTNL,
7116 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7117 .doit = nl80211_update_mesh_config,
7118 .policy = nl80211_policy,
7119 .flags = GENL_ADMIN_PERM,
7120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7121 NL80211_FLAG_NEED_RTNL,
7124 .cmd = NL80211_CMD_TRIGGER_SCAN,
7125 .doit = nl80211_trigger_scan,
7126 .policy = nl80211_policy,
7127 .flags = GENL_ADMIN_PERM,
7128 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7129 NL80211_FLAG_NEED_RTNL,
7132 .cmd = NL80211_CMD_GET_SCAN,
7133 .policy = nl80211_policy,
7134 .dumpit = nl80211_dump_scan,
7137 .cmd = NL80211_CMD_START_SCHED_SCAN,
7138 .doit = nl80211_start_sched_scan,
7139 .policy = nl80211_policy,
7140 .flags = GENL_ADMIN_PERM,
7141 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7142 NL80211_FLAG_NEED_RTNL,
7145 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7146 .doit = nl80211_stop_sched_scan,
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_AUTHENTICATE,
7154 .doit = nl80211_authenticate,
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_ASSOCIATE,
7162 .doit = nl80211_associate,
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_DEAUTHENTICATE,
7170 .doit = nl80211_deauthenticate,
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_DISASSOCIATE,
7178 .doit = nl80211_disassociate,
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_JOIN_IBSS,
7186 .doit = nl80211_join_ibss,
7187 .policy = nl80211_policy,
7188 .flags = GENL_ADMIN_PERM,
7189 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7190 NL80211_FLAG_NEED_RTNL,
7193 .cmd = NL80211_CMD_LEAVE_IBSS,
7194 .doit = nl80211_leave_ibss,
7195 .policy = nl80211_policy,
7196 .flags = GENL_ADMIN_PERM,
7197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7198 NL80211_FLAG_NEED_RTNL,
7200 #ifdef CONFIG_NL80211_TESTMODE
7202 .cmd = NL80211_CMD_TESTMODE,
7203 .doit = nl80211_testmode_do,
7204 .dumpit = nl80211_testmode_dump,
7205 .policy = nl80211_policy,
7206 .flags = GENL_ADMIN_PERM,
7207 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7208 NL80211_FLAG_NEED_RTNL,
7212 .cmd = NL80211_CMD_CONNECT,
7213 .doit = nl80211_connect,
7214 .policy = nl80211_policy,
7215 .flags = GENL_ADMIN_PERM,
7216 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7217 NL80211_FLAG_NEED_RTNL,
7220 .cmd = NL80211_CMD_DISCONNECT,
7221 .doit = nl80211_disconnect,
7222 .policy = nl80211_policy,
7223 .flags = GENL_ADMIN_PERM,
7224 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7225 NL80211_FLAG_NEED_RTNL,
7228 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7229 .doit = nl80211_wiphy_netns,
7230 .policy = nl80211_policy,
7231 .flags = GENL_ADMIN_PERM,
7232 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7233 NL80211_FLAG_NEED_RTNL,
7236 .cmd = NL80211_CMD_GET_SURVEY,
7237 .policy = nl80211_policy,
7238 .dumpit = nl80211_dump_survey,
7241 .cmd = NL80211_CMD_SET_PMKSA,
7242 .doit = nl80211_setdel_pmksa,
7243 .policy = nl80211_policy,
7244 .flags = GENL_ADMIN_PERM,
7245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7246 NL80211_FLAG_NEED_RTNL,
7249 .cmd = NL80211_CMD_DEL_PMKSA,
7250 .doit = nl80211_setdel_pmksa,
7251 .policy = nl80211_policy,
7252 .flags = GENL_ADMIN_PERM,
7253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7254 NL80211_FLAG_NEED_RTNL,
7257 .cmd = NL80211_CMD_FLUSH_PMKSA,
7258 .doit = nl80211_flush_pmksa,
7259 .policy = nl80211_policy,
7260 .flags = GENL_ADMIN_PERM,
7261 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7262 NL80211_FLAG_NEED_RTNL,
7265 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7266 .doit = nl80211_remain_on_channel,
7267 .policy = nl80211_policy,
7268 .flags = GENL_ADMIN_PERM,
7269 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7270 NL80211_FLAG_NEED_RTNL,
7273 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7274 .doit = nl80211_cancel_remain_on_channel,
7275 .policy = nl80211_policy,
7276 .flags = GENL_ADMIN_PERM,
7277 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7278 NL80211_FLAG_NEED_RTNL,
7281 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7282 .doit = nl80211_set_tx_bitrate_mask,
7283 .policy = nl80211_policy,
7284 .flags = GENL_ADMIN_PERM,
7285 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7286 NL80211_FLAG_NEED_RTNL,
7289 .cmd = NL80211_CMD_REGISTER_FRAME,
7290 .doit = nl80211_register_mgmt,
7291 .policy = nl80211_policy,
7292 .flags = GENL_ADMIN_PERM,
7293 .internal_flags = NL80211_FLAG_NEED_WDEV |
7294 NL80211_FLAG_NEED_RTNL,
7297 .cmd = NL80211_CMD_FRAME,
7298 .doit = nl80211_tx_mgmt,
7299 .policy = nl80211_policy,
7300 .flags = GENL_ADMIN_PERM,
7301 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7302 NL80211_FLAG_NEED_RTNL,
7305 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7306 .doit = nl80211_tx_mgmt_cancel_wait,
7307 .policy = nl80211_policy,
7308 .flags = GENL_ADMIN_PERM,
7309 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7310 NL80211_FLAG_NEED_RTNL,
7313 .cmd = NL80211_CMD_SET_POWER_SAVE,
7314 .doit = nl80211_set_power_save,
7315 .policy = nl80211_policy,
7316 .flags = GENL_ADMIN_PERM,
7317 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7318 NL80211_FLAG_NEED_RTNL,
7321 .cmd = NL80211_CMD_GET_POWER_SAVE,
7322 .doit = nl80211_get_power_save,
7323 .policy = nl80211_policy,
7324 /* can be retrieved by unprivileged users */
7325 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7326 NL80211_FLAG_NEED_RTNL,
7329 .cmd = NL80211_CMD_SET_CQM,
7330 .doit = nl80211_set_cqm,
7331 .policy = nl80211_policy,
7332 .flags = GENL_ADMIN_PERM,
7333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7334 NL80211_FLAG_NEED_RTNL,
7337 .cmd = NL80211_CMD_SET_CHANNEL,
7338 .doit = nl80211_set_channel,
7339 .policy = nl80211_policy,
7340 .flags = GENL_ADMIN_PERM,
7341 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7342 NL80211_FLAG_NEED_RTNL,
7345 .cmd = NL80211_CMD_SET_WDS_PEER,
7346 .doit = nl80211_set_wds_peer,
7347 .policy = nl80211_policy,
7348 .flags = GENL_ADMIN_PERM,
7349 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7350 NL80211_FLAG_NEED_RTNL,
7353 .cmd = NL80211_CMD_JOIN_MESH,
7354 .doit = nl80211_join_mesh,
7355 .policy = nl80211_policy,
7356 .flags = GENL_ADMIN_PERM,
7357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7358 NL80211_FLAG_NEED_RTNL,
7361 .cmd = NL80211_CMD_LEAVE_MESH,
7362 .doit = nl80211_leave_mesh,
7363 .policy = nl80211_policy,
7364 .flags = GENL_ADMIN_PERM,
7365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7366 NL80211_FLAG_NEED_RTNL,
7370 .cmd = NL80211_CMD_GET_WOWLAN,
7371 .doit = nl80211_get_wowlan,
7372 .policy = nl80211_policy,
7373 /* can be retrieved by unprivileged users */
7374 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7375 NL80211_FLAG_NEED_RTNL,
7378 .cmd = NL80211_CMD_SET_WOWLAN,
7379 .doit = nl80211_set_wowlan,
7380 .policy = nl80211_policy,
7381 .flags = GENL_ADMIN_PERM,
7382 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7383 NL80211_FLAG_NEED_RTNL,
7387 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7388 .doit = nl80211_set_rekey_data,
7389 .policy = nl80211_policy,
7390 .flags = GENL_ADMIN_PERM,
7391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7392 NL80211_FLAG_NEED_RTNL,
7395 .cmd = NL80211_CMD_TDLS_MGMT,
7396 .doit = nl80211_tdls_mgmt,
7397 .policy = nl80211_policy,
7398 .flags = GENL_ADMIN_PERM,
7399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7400 NL80211_FLAG_NEED_RTNL,
7403 .cmd = NL80211_CMD_TDLS_OPER,
7404 .doit = nl80211_tdls_oper,
7405 .policy = nl80211_policy,
7406 .flags = GENL_ADMIN_PERM,
7407 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7408 NL80211_FLAG_NEED_RTNL,
7411 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7412 .doit = nl80211_register_unexpected_frame,
7413 .policy = nl80211_policy,
7414 .flags = GENL_ADMIN_PERM,
7415 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7416 NL80211_FLAG_NEED_RTNL,
7419 .cmd = NL80211_CMD_PROBE_CLIENT,
7420 .doit = nl80211_probe_client,
7421 .policy = nl80211_policy,
7422 .flags = GENL_ADMIN_PERM,
7423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7424 NL80211_FLAG_NEED_RTNL,
7427 .cmd = NL80211_CMD_REGISTER_BEACONS,
7428 .doit = nl80211_register_beacons,
7429 .policy = nl80211_policy,
7430 .flags = GENL_ADMIN_PERM,
7431 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7432 NL80211_FLAG_NEED_RTNL,
7435 .cmd = NL80211_CMD_SET_NOACK_MAP,
7436 .doit = nl80211_set_noack_map,
7437 .policy = nl80211_policy,
7438 .flags = GENL_ADMIN_PERM,
7439 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7440 NL80211_FLAG_NEED_RTNL,
7445 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7449 /* multicast groups */
7450 static struct genl_multicast_group nl80211_config_mcgrp = {
7453 static struct genl_multicast_group nl80211_scan_mcgrp = {
7456 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7457 .name = "regulatory",
7460 /* notification functions */
7462 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7464 struct sk_buff *msg;
7466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7470 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7475 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7476 nl80211_config_mcgrp.id, GFP_KERNEL);
7479 static int nl80211_add_scan_req(struct sk_buff *msg,
7480 struct cfg80211_registered_device *rdev)
7482 struct cfg80211_scan_request *req = rdev->scan_req;
7483 struct nlattr *nest;
7486 ASSERT_RDEV_LOCK(rdev);
7491 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7493 goto nla_put_failure;
7494 for (i = 0; i < req->n_ssids; i++) {
7495 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7496 goto nla_put_failure;
7498 nla_nest_end(msg, nest);
7500 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7502 goto nla_put_failure;
7503 for (i = 0; i < req->n_channels; i++) {
7504 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7505 goto nla_put_failure;
7507 nla_nest_end(msg, nest);
7510 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7511 goto nla_put_failure;
7518 static int nl80211_send_scan_msg(struct sk_buff *msg,
7519 struct cfg80211_registered_device *rdev,
7520 struct wireless_dev *wdev,
7521 u32 pid, u32 seq, int flags,
7526 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7530 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7531 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7532 wdev->netdev->ifindex)) ||
7533 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
7534 goto nla_put_failure;
7536 /* ignore errors and send incomplete event anyway */
7537 nl80211_add_scan_req(msg, rdev);
7539 return genlmsg_end(msg, hdr);
7542 genlmsg_cancel(msg, hdr);
7547 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7548 struct cfg80211_registered_device *rdev,
7549 struct net_device *netdev,
7550 u32 pid, u32 seq, int flags, u32 cmd)
7554 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7558 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7559 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7560 goto nla_put_failure;
7562 return genlmsg_end(msg, hdr);
7565 genlmsg_cancel(msg, hdr);
7569 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7570 struct wireless_dev *wdev)
7572 struct sk_buff *msg;
7574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7578 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7579 NL80211_CMD_TRIGGER_SCAN) < 0) {
7584 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7585 nl80211_scan_mcgrp.id, GFP_KERNEL);
7588 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7589 struct wireless_dev *wdev)
7591 struct sk_buff *msg;
7593 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7597 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7598 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7603 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7604 nl80211_scan_mcgrp.id, GFP_KERNEL);
7607 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7608 struct wireless_dev *wdev)
7610 struct sk_buff *msg;
7612 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7616 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7617 NL80211_CMD_SCAN_ABORTED) < 0) {
7622 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7623 nl80211_scan_mcgrp.id, GFP_KERNEL);
7626 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7627 struct net_device *netdev)
7629 struct sk_buff *msg;
7631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7635 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7636 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7641 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7642 nl80211_scan_mcgrp.id, GFP_KERNEL);
7645 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7646 struct net_device *netdev, u32 cmd)
7648 struct sk_buff *msg;
7650 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7654 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7659 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7660 nl80211_scan_mcgrp.id, GFP_KERNEL);
7664 * This can happen on global regulatory changes or device specific settings
7665 * based on custom world regulatory domains.
7667 void nl80211_send_reg_change_event(struct regulatory_request *request)
7669 struct sk_buff *msg;
7672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7676 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7682 /* Userspace can always count this one always being set */
7683 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7684 goto nla_put_failure;
7686 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7687 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7688 NL80211_REGDOM_TYPE_WORLD))
7689 goto nla_put_failure;
7690 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7691 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7692 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7693 goto nla_put_failure;
7694 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7695 request->intersect) {
7696 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7697 NL80211_REGDOM_TYPE_INTERSECTION))
7698 goto nla_put_failure;
7700 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7701 NL80211_REGDOM_TYPE_COUNTRY) ||
7702 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7704 goto nla_put_failure;
7707 if (wiphy_idx_valid(request->wiphy_idx) &&
7708 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7709 goto nla_put_failure;
7711 genlmsg_end(msg, hdr);
7714 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7721 genlmsg_cancel(msg, hdr);
7725 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7726 struct net_device *netdev,
7727 const u8 *buf, size_t len,
7728 enum nl80211_commands cmd, gfp_t gfp)
7730 struct sk_buff *msg;
7733 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7737 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7743 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7744 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7745 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7746 goto nla_put_failure;
7748 genlmsg_end(msg, hdr);
7750 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7751 nl80211_mlme_mcgrp.id, gfp);
7755 genlmsg_cancel(msg, hdr);
7759 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7760 struct net_device *netdev, const u8 *buf,
7761 size_t len, gfp_t gfp)
7763 nl80211_send_mlme_event(rdev, netdev, buf, len,
7764 NL80211_CMD_AUTHENTICATE, gfp);
7767 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7768 struct net_device *netdev, const u8 *buf,
7769 size_t len, gfp_t gfp)
7771 nl80211_send_mlme_event(rdev, netdev, buf, len,
7772 NL80211_CMD_ASSOCIATE, gfp);
7775 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7776 struct net_device *netdev, const u8 *buf,
7777 size_t len, gfp_t gfp)
7779 nl80211_send_mlme_event(rdev, netdev, buf, len,
7780 NL80211_CMD_DEAUTHENTICATE, gfp);
7783 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7784 struct net_device *netdev, const u8 *buf,
7785 size_t len, gfp_t gfp)
7787 nl80211_send_mlme_event(rdev, netdev, buf, len,
7788 NL80211_CMD_DISASSOCIATE, gfp);
7791 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7792 struct net_device *netdev, const u8 *buf,
7793 size_t len, gfp_t gfp)
7795 nl80211_send_mlme_event(rdev, netdev, buf, len,
7796 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7799 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7800 struct net_device *netdev, const u8 *buf,
7801 size_t len, gfp_t gfp)
7803 nl80211_send_mlme_event(rdev, netdev, buf, len,
7804 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7807 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7808 struct net_device *netdev, int cmd,
7809 const u8 *addr, gfp_t gfp)
7811 struct sk_buff *msg;
7814 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7818 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7824 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7825 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7826 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7827 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7828 goto nla_put_failure;
7830 genlmsg_end(msg, hdr);
7832 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7833 nl80211_mlme_mcgrp.id, gfp);
7837 genlmsg_cancel(msg, hdr);
7841 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7842 struct net_device *netdev, const u8 *addr,
7845 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7849 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7850 struct net_device *netdev, const u8 *addr,
7853 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7857 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7858 struct net_device *netdev, const u8 *bssid,
7859 const u8 *req_ie, size_t req_ie_len,
7860 const u8 *resp_ie, size_t resp_ie_len,
7861 u16 status, gfp_t gfp)
7863 struct sk_buff *msg;
7866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7870 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7877 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7878 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7879 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7881 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7883 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7884 goto nla_put_failure;
7886 genlmsg_end(msg, hdr);
7888 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7889 nl80211_mlme_mcgrp.id, gfp);
7893 genlmsg_cancel(msg, hdr);
7898 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7899 struct net_device *netdev, const u8 *bssid,
7900 const u8 *req_ie, size_t req_ie_len,
7901 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7903 struct sk_buff *msg;
7906 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7910 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7916 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7917 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7918 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7920 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7922 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7923 goto nla_put_failure;
7925 genlmsg_end(msg, hdr);
7927 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7928 nl80211_mlme_mcgrp.id, gfp);
7932 genlmsg_cancel(msg, hdr);
7937 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7938 struct net_device *netdev, u16 reason,
7939 const u8 *ie, size_t ie_len, bool from_ap)
7941 struct sk_buff *msg;
7944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7948 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7954 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7955 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7956 (from_ap && reason &&
7957 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7959 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7960 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7961 goto nla_put_failure;
7963 genlmsg_end(msg, hdr);
7965 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7966 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7970 genlmsg_cancel(msg, hdr);
7975 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7976 struct net_device *netdev, const u8 *bssid,
7979 struct sk_buff *msg;
7982 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7986 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7992 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7993 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7994 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7995 goto nla_put_failure;
7997 genlmsg_end(msg, hdr);
7999 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8000 nl80211_mlme_mcgrp.id, gfp);
8004 genlmsg_cancel(msg, hdr);
8008 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8009 struct net_device *netdev,
8010 const u8 *macaddr, const u8* ie, u8 ie_len,
8013 struct sk_buff *msg;
8016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
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, macaddr) ||
8030 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8031 goto nla_put_failure;
8033 genlmsg_end(msg, hdr);
8035 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8036 nl80211_mlme_mcgrp.id, gfp);
8040 genlmsg_cancel(msg, hdr);
8044 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8045 struct net_device *netdev, const u8 *addr,
8046 enum nl80211_key_type key_type, int key_id,
8047 const u8 *tsc, gfp_t gfp)
8049 struct sk_buff *msg;
8052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8056 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8062 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8063 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8064 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8065 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8067 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8068 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8069 goto nla_put_failure;
8071 genlmsg_end(msg, hdr);
8073 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8074 nl80211_mlme_mcgrp.id, gfp);
8078 genlmsg_cancel(msg, hdr);
8082 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8083 struct ieee80211_channel *channel_before,
8084 struct ieee80211_channel *channel_after)
8086 struct sk_buff *msg;
8088 struct nlattr *nl_freq;
8090 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8094 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8101 * Since we are applying the beacon hint to a wiphy we know its
8102 * wiphy_idx is valid
8104 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8105 goto nla_put_failure;
8108 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8110 goto nla_put_failure;
8111 if (nl80211_msg_put_channel(msg, channel_before))
8112 goto nla_put_failure;
8113 nla_nest_end(msg, nl_freq);
8116 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8118 goto nla_put_failure;
8119 if (nl80211_msg_put_channel(msg, channel_after))
8120 goto nla_put_failure;
8121 nla_nest_end(msg, nl_freq);
8123 genlmsg_end(msg, hdr);
8126 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8133 genlmsg_cancel(msg, hdr);
8137 static void nl80211_send_remain_on_chan_event(
8138 int cmd, struct cfg80211_registered_device *rdev,
8139 struct wireless_dev *wdev, u64 cookie,
8140 struct ieee80211_channel *chan,
8141 enum nl80211_channel_type channel_type,
8142 unsigned int duration, gfp_t gfp)
8144 struct sk_buff *msg;
8147 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8151 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8157 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8158 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8159 wdev->netdev->ifindex)) ||
8160 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8161 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8162 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8163 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8164 goto nla_put_failure;
8166 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8167 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8168 goto nla_put_failure;
8170 genlmsg_end(msg, hdr);
8172 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8173 nl80211_mlme_mcgrp.id, gfp);
8177 genlmsg_cancel(msg, hdr);
8181 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8182 struct wireless_dev *wdev, u64 cookie,
8183 struct ieee80211_channel *chan,
8184 enum nl80211_channel_type channel_type,
8185 unsigned int duration, gfp_t gfp)
8187 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8188 rdev, wdev, cookie, chan,
8189 channel_type, duration, gfp);
8192 void nl80211_send_remain_on_channel_cancel(
8193 struct cfg80211_registered_device *rdev,
8194 struct wireless_dev *wdev,
8195 u64 cookie, struct ieee80211_channel *chan,
8196 enum nl80211_channel_type channel_type, gfp_t gfp)
8198 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8199 rdev, wdev, cookie, chan,
8200 channel_type, 0, gfp);
8203 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8204 struct net_device *dev, const u8 *mac_addr,
8205 struct station_info *sinfo, gfp_t gfp)
8207 struct sk_buff *msg;
8209 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8213 if (nl80211_send_station(msg, 0, 0, 0,
8214 rdev, dev, mac_addr, sinfo) < 0) {
8219 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8220 nl80211_mlme_mcgrp.id, gfp);
8223 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8224 struct net_device *dev, const u8 *mac_addr,
8227 struct sk_buff *msg;
8230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8234 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8240 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8241 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8242 goto nla_put_failure;
8244 genlmsg_end(msg, hdr);
8246 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8247 nl80211_mlme_mcgrp.id, gfp);
8251 genlmsg_cancel(msg, hdr);
8255 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8256 const u8 *addr, gfp_t gfp)
8258 struct wireless_dev *wdev = dev->ieee80211_ptr;
8259 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8260 struct sk_buff *msg;
8263 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8268 msg = nlmsg_new(100, gfp);
8272 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8278 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8279 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8280 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8281 goto nla_put_failure;
8283 err = genlmsg_end(msg, hdr);
8289 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8293 genlmsg_cancel(msg, hdr);
8298 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8300 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8304 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8305 const u8 *addr, gfp_t gfp)
8307 return __nl80211_unexpected_frame(dev,
8308 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8312 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8313 struct wireless_dev *wdev, u32 nlpid,
8314 int freq, int sig_dbm,
8315 const u8 *buf, size_t len, gfp_t gfp)
8317 struct net_device *netdev = wdev->netdev;
8318 struct sk_buff *msg;
8321 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8325 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8331 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8332 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8333 netdev->ifindex)) ||
8334 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8336 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8337 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8338 goto nla_put_failure;
8340 genlmsg_end(msg, hdr);
8342 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8345 genlmsg_cancel(msg, hdr);
8350 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8351 struct wireless_dev *wdev, u64 cookie,
8352 const u8 *buf, size_t len, bool ack,
8355 struct net_device *netdev = wdev->netdev;
8356 struct sk_buff *msg;
8359 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8363 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8370 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8371 netdev->ifindex)) ||
8372 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8373 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8374 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8375 goto nla_put_failure;
8377 genlmsg_end(msg, hdr);
8379 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8383 genlmsg_cancel(msg, hdr);
8388 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8389 struct net_device *netdev,
8390 enum nl80211_cqm_rssi_threshold_event rssi_event,
8393 struct sk_buff *msg;
8394 struct nlattr *pinfoattr;
8397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8401 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8407 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8408 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8409 goto nla_put_failure;
8411 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8413 goto nla_put_failure;
8415 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8417 goto nla_put_failure;
8419 nla_nest_end(msg, pinfoattr);
8421 genlmsg_end(msg, hdr);
8423 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8424 nl80211_mlme_mcgrp.id, gfp);
8428 genlmsg_cancel(msg, hdr);
8432 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8433 struct net_device *netdev, const u8 *bssid,
8434 const u8 *replay_ctr, gfp_t gfp)
8436 struct sk_buff *msg;
8437 struct nlattr *rekey_attr;
8440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8444 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8452 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8453 goto nla_put_failure;
8455 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8457 goto nla_put_failure;
8459 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8460 NL80211_REPLAY_CTR_LEN, replay_ctr))
8461 goto nla_put_failure;
8463 nla_nest_end(msg, rekey_attr);
8465 genlmsg_end(msg, hdr);
8467 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8468 nl80211_mlme_mcgrp.id, gfp);
8472 genlmsg_cancel(msg, hdr);
8476 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8477 struct net_device *netdev, int index,
8478 const u8 *bssid, bool preauth, gfp_t gfp)
8480 struct sk_buff *msg;
8481 struct nlattr *attr;
8484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8488 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8495 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8496 goto nla_put_failure;
8498 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8500 goto nla_put_failure;
8502 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8503 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8505 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8506 goto nla_put_failure;
8508 nla_nest_end(msg, attr);
8510 genlmsg_end(msg, hdr);
8512 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8513 nl80211_mlme_mcgrp.id, gfp);
8517 genlmsg_cancel(msg, hdr);
8521 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8522 struct net_device *netdev, int freq,
8523 enum nl80211_channel_type type, gfp_t gfp)
8525 struct sk_buff *msg;
8528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8538 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8539 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8540 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8541 goto nla_put_failure;
8543 genlmsg_end(msg, hdr);
8545 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8546 nl80211_mlme_mcgrp.id, gfp);
8550 genlmsg_cancel(msg, hdr);
8555 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8556 struct net_device *netdev, const u8 *peer,
8557 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8559 struct sk_buff *msg;
8560 struct nlattr *pinfoattr;
8563 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8567 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8573 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8574 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8575 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8576 goto nla_put_failure;
8578 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8580 goto nla_put_failure;
8582 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8583 goto nla_put_failure;
8585 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8586 goto nla_put_failure;
8588 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8589 goto nla_put_failure;
8591 nla_nest_end(msg, pinfoattr);
8593 genlmsg_end(msg, hdr);
8595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8596 nl80211_mlme_mcgrp.id, gfp);
8600 genlmsg_cancel(msg, hdr);
8605 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8606 struct net_device *netdev, const u8 *peer,
8607 u32 num_packets, gfp_t gfp)
8609 struct sk_buff *msg;
8610 struct nlattr *pinfoattr;
8613 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8617 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8623 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8624 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8625 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8626 goto nla_put_failure;
8628 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8630 goto nla_put_failure;
8632 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8633 goto nla_put_failure;
8635 nla_nest_end(msg, pinfoattr);
8637 genlmsg_end(msg, hdr);
8639 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8640 nl80211_mlme_mcgrp.id, gfp);
8644 genlmsg_cancel(msg, hdr);
8648 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8649 u64 cookie, bool acked, gfp_t gfp)
8651 struct wireless_dev *wdev = dev->ieee80211_ptr;
8652 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8653 struct sk_buff *msg;
8657 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8661 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8667 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8668 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8669 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8670 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8671 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8672 goto nla_put_failure;
8674 err = genlmsg_end(msg, hdr);
8680 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8681 nl80211_mlme_mcgrp.id, gfp);
8685 genlmsg_cancel(msg, hdr);
8688 EXPORT_SYMBOL(cfg80211_probe_status);
8690 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8691 const u8 *frame, size_t len,
8692 int freq, int sig_dbm, gfp_t gfp)
8694 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8695 struct sk_buff *msg;
8697 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8702 msg = nlmsg_new(len + 100, gfp);
8706 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8712 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8714 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8716 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8717 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8718 goto nla_put_failure;
8720 genlmsg_end(msg, hdr);
8722 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8726 genlmsg_cancel(msg, hdr);
8729 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8731 static int nl80211_netlink_notify(struct notifier_block * nb,
8732 unsigned long state,
8735 struct netlink_notify *notify = _notify;
8736 struct cfg80211_registered_device *rdev;
8737 struct wireless_dev *wdev;
8739 if (state != NETLINK_URELEASE)
8744 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8745 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
8746 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8747 if (rdev->ap_beacons_nlpid == notify->pid)
8748 rdev->ap_beacons_nlpid = 0;
8756 static struct notifier_block nl80211_netlink_notifier = {
8757 .notifier_call = nl80211_netlink_notify,
8760 /* initialisation/exit functions */
8762 int nl80211_init(void)
8766 err = genl_register_family_with_ops(&nl80211_fam,
8767 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8771 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8775 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8779 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8783 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8787 #ifdef CONFIG_NL80211_TESTMODE
8788 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8793 err = netlink_register_notifier(&nl80211_netlink_notifier);
8799 genl_unregister_family(&nl80211_fam);
8803 void nl80211_exit(void)
8805 netlink_unregister_notifier(&nl80211_netlink_notifier);
8806 genl_unregister_family(&nl80211_fam);