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 },
359 /* policy for the key attributes */
360 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
361 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
362 [NL80211_KEY_IDX] = { .type = NLA_U8 },
363 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
364 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
365 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
366 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
367 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
368 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
371 /* policy for the key default flags */
372 static const struct nla_policy
373 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
374 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
375 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
378 /* policy for WoWLAN attributes */
379 static const struct nla_policy
380 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
381 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
382 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
384 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
385 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
386 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
388 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
391 /* policy for GTK rekey offload attributes */
392 static const struct nla_policy
393 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
394 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
395 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
396 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
399 static const struct nla_policy
400 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
401 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
402 .len = IEEE80211_MAX_SSID_LEN },
403 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
406 /* ifidx get helper */
407 static int nl80211_get_ifidx(struct netlink_callback *cb)
411 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
412 nl80211_fam.attrbuf, nl80211_fam.maxattr,
417 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
420 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
426 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
427 struct netlink_callback *cb,
428 struct cfg80211_registered_device **rdev,
429 struct net_device **dev)
431 int ifidx = cb->args[0];
435 ifidx = nl80211_get_ifidx(cb);
443 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
449 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
451 err = PTR_ERR(*rdev);
461 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
463 cfg80211_unlock_rdev(rdev);
468 static bool is_valid_ie_attr(const struct nlattr *attr)
476 pos = nla_data(attr);
497 /* message building helper */
498 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
501 /* since there is no private header just add the generic one */
502 return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
505 static int nl80211_msg_put_channel(struct sk_buff *msg,
506 struct ieee80211_channel *chan)
508 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
510 goto nla_put_failure;
512 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
513 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
514 goto nla_put_failure;
515 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
516 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
517 goto nla_put_failure;
518 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
519 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
520 goto nla_put_failure;
521 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
522 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
523 goto nla_put_failure;
525 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
526 DBM_TO_MBM(chan->max_power)))
527 goto nla_put_failure;
535 /* netlink command implementations */
542 bool def_uni, def_multi;
545 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
547 struct nlattr *tb[NL80211_KEY_MAX + 1];
548 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
553 k->def = !!tb[NL80211_KEY_DEFAULT];
554 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
563 if (tb[NL80211_KEY_IDX])
564 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
566 if (tb[NL80211_KEY_DATA]) {
567 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
568 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
571 if (tb[NL80211_KEY_SEQ]) {
572 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
573 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
576 if (tb[NL80211_KEY_CIPHER])
577 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
579 if (tb[NL80211_KEY_TYPE]) {
580 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
581 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
585 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
586 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
587 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
588 tb[NL80211_KEY_DEFAULT_TYPES],
589 nl80211_key_default_policy);
593 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
594 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
600 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
602 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
603 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
604 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
607 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
608 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
609 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
612 if (info->attrs[NL80211_ATTR_KEY_IDX])
613 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
615 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
616 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
618 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
619 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
628 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
629 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
630 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
634 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
635 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
636 int err = nla_parse_nested(
637 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
638 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
639 nl80211_key_default_policy);
643 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
644 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
650 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
654 memset(k, 0, sizeof(*k));
658 if (info->attrs[NL80211_ATTR_KEY])
659 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
661 err = nl80211_parse_key_old(info, k);
666 if (k->def && k->defmgmt)
670 if (k->def_uni || !k->def_multi)
676 if (k->idx < 4 || k->idx > 5)
679 if (k->idx < 0 || k->idx > 3)
682 if (k->idx < 0 || k->idx > 5)
690 static struct cfg80211_cached_keys *
691 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
694 struct key_parse parse;
696 struct cfg80211_cached_keys *result;
697 int rem, err, def = 0;
699 result = kzalloc(sizeof(*result), GFP_KERNEL);
701 return ERR_PTR(-ENOMEM);
704 result->defmgmt = -1;
706 nla_for_each_nested(key, keys, rem) {
707 memset(&parse, 0, sizeof(parse));
710 err = nl80211_parse_key_new(key, &parse);
716 if (parse.idx < 0 || parse.idx > 4)
722 result->def = parse.idx;
723 if (!parse.def_uni || !parse.def_multi)
725 } else if (parse.defmgmt)
727 err = cfg80211_validate_key_settings(rdev, &parse.p,
728 parse.idx, false, NULL);
731 result->params[parse.idx].cipher = parse.p.cipher;
732 result->params[parse.idx].key_len = parse.p.key_len;
733 result->params[parse.idx].key = result->data[parse.idx];
734 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
743 static int nl80211_key_allowed(struct wireless_dev *wdev)
745 ASSERT_WDEV_LOCK(wdev);
747 switch (wdev->iftype) {
748 case NL80211_IFTYPE_AP:
749 case NL80211_IFTYPE_AP_VLAN:
750 case NL80211_IFTYPE_P2P_GO:
751 case NL80211_IFTYPE_MESH_POINT:
753 case NL80211_IFTYPE_ADHOC:
754 if (!wdev->current_bss)
757 case NL80211_IFTYPE_STATION:
758 case NL80211_IFTYPE_P2P_CLIENT:
759 if (wdev->sme_state != CFG80211_SME_CONNECTED)
769 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
771 struct nlattr *nl_modes = nla_nest_start(msg, attr);
775 goto nla_put_failure;
779 if ((ifmodes & 1) && nla_put_flag(msg, i))
780 goto nla_put_failure;
785 nla_nest_end(msg, nl_modes);
792 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
795 struct nlattr *nl_combis;
798 nl_combis = nla_nest_start(msg,
799 NL80211_ATTR_INTERFACE_COMBINATIONS);
801 goto nla_put_failure;
803 for (i = 0; i < wiphy->n_iface_combinations; i++) {
804 const struct ieee80211_iface_combination *c;
805 struct nlattr *nl_combi, *nl_limits;
807 c = &wiphy->iface_combinations[i];
809 nl_combi = nla_nest_start(msg, i + 1);
811 goto nla_put_failure;
813 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
815 goto nla_put_failure;
817 for (j = 0; j < c->n_limits; j++) {
818 struct nlattr *nl_limit;
820 nl_limit = nla_nest_start(msg, j + 1);
822 goto nla_put_failure;
823 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
825 goto nla_put_failure;
826 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
828 goto nla_put_failure;
829 nla_nest_end(msg, nl_limit);
832 nla_nest_end(msg, nl_limits);
834 if (c->beacon_int_infra_match &&
835 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
836 goto nla_put_failure;
837 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
838 c->num_different_channels) ||
839 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
841 goto nla_put_failure;
843 nla_nest_end(msg, nl_combi);
846 nla_nest_end(msg, nl_combis);
853 static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
854 struct cfg80211_registered_device *dev)
857 struct nlattr *nl_bands, *nl_band;
858 struct nlattr *nl_freqs, *nl_freq;
859 struct nlattr *nl_rates, *nl_rate;
860 struct nlattr *nl_cmds;
861 enum ieee80211_band band;
862 struct ieee80211_channel *chan;
863 struct ieee80211_rate *rate;
865 const struct ieee80211_txrx_stypes *mgmt_stypes =
866 dev->wiphy.mgmt_stypes;
868 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
872 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
873 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
874 nla_put_u32(msg, NL80211_ATTR_GENERATION,
875 cfg80211_rdev_list_generation) ||
876 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
877 dev->wiphy.retry_short) ||
878 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
879 dev->wiphy.retry_long) ||
880 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
881 dev->wiphy.frag_threshold) ||
882 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
883 dev->wiphy.rts_threshold) ||
884 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
885 dev->wiphy.coverage_class) ||
886 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
887 dev->wiphy.max_scan_ssids) ||
888 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
889 dev->wiphy.max_sched_scan_ssids) ||
890 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
891 dev->wiphy.max_scan_ie_len) ||
892 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
893 dev->wiphy.max_sched_scan_ie_len) ||
894 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
895 dev->wiphy.max_match_sets))
896 goto nla_put_failure;
898 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
899 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
900 goto nla_put_failure;
901 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
902 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
903 goto nla_put_failure;
904 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
905 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
906 goto nla_put_failure;
907 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
908 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
909 goto nla_put_failure;
910 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
911 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
912 goto nla_put_failure;
913 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
914 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
915 goto nla_put_failure;
917 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
918 sizeof(u32) * dev->wiphy.n_cipher_suites,
919 dev->wiphy.cipher_suites))
920 goto nla_put_failure;
922 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
923 dev->wiphy.max_num_pmkids))
924 goto nla_put_failure;
926 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
927 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
928 goto nla_put_failure;
930 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
931 dev->wiphy.available_antennas_tx) ||
932 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
933 dev->wiphy.available_antennas_rx))
934 goto nla_put_failure;
936 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
937 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
938 dev->wiphy.probe_resp_offload))
939 goto nla_put_failure;
941 if ((dev->wiphy.available_antennas_tx ||
942 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
943 u32 tx_ant = 0, rx_ant = 0;
945 res = dev->ops->get_antenna(&dev->wiphy, &tx_ant, &rx_ant);
947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
949 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
951 goto nla_put_failure;
955 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
956 dev->wiphy.interface_modes))
957 goto nla_put_failure;
959 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
961 goto nla_put_failure;
963 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
964 if (!dev->wiphy.bands[band])
967 nl_band = nla_nest_start(msg, band);
969 goto nla_put_failure;
972 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
973 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
974 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
975 &dev->wiphy.bands[band]->ht_cap.mcs) ||
976 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
977 dev->wiphy.bands[band]->ht_cap.cap) ||
978 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
979 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
980 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
981 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
982 goto nla_put_failure;
985 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
986 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
987 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
988 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
989 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
990 dev->wiphy.bands[band]->vht_cap.cap)))
991 goto nla_put_failure;
993 /* add frequencies */
994 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
996 goto nla_put_failure;
998 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
999 nl_freq = nla_nest_start(msg, i);
1001 goto nla_put_failure;
1003 chan = &dev->wiphy.bands[band]->channels[i];
1005 if (nl80211_msg_put_channel(msg, chan))
1006 goto nla_put_failure;
1008 nla_nest_end(msg, nl_freq);
1011 nla_nest_end(msg, nl_freqs);
1014 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1016 goto nla_put_failure;
1018 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1019 nl_rate = nla_nest_start(msg, i);
1021 goto nla_put_failure;
1023 rate = &dev->wiphy.bands[band]->bitrates[i];
1024 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1026 goto nla_put_failure;
1027 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1029 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1030 goto nla_put_failure;
1032 nla_nest_end(msg, nl_rate);
1035 nla_nest_end(msg, nl_rates);
1037 nla_nest_end(msg, nl_band);
1039 nla_nest_end(msg, nl_bands);
1041 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1043 goto nla_put_failure;
1046 #define CMD(op, n) \
1048 if (dev->ops->op) { \
1050 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1051 goto nla_put_failure; \
1055 CMD(add_virtual_intf, NEW_INTERFACE);
1056 CMD(change_virtual_intf, SET_INTERFACE);
1057 CMD(add_key, NEW_KEY);
1058 CMD(start_ap, START_AP);
1059 CMD(add_station, NEW_STATION);
1060 CMD(add_mpath, NEW_MPATH);
1061 CMD(update_mesh_config, SET_MESH_CONFIG);
1062 CMD(change_bss, SET_BSS);
1063 CMD(auth, AUTHENTICATE);
1064 CMD(assoc, ASSOCIATE);
1065 CMD(deauth, DEAUTHENTICATE);
1066 CMD(disassoc, DISASSOCIATE);
1067 CMD(join_ibss, JOIN_IBSS);
1068 CMD(join_mesh, JOIN_MESH);
1069 CMD(set_pmksa, SET_PMKSA);
1070 CMD(del_pmksa, DEL_PMKSA);
1071 CMD(flush_pmksa, FLUSH_PMKSA);
1072 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1073 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1074 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1075 CMD(mgmt_tx, FRAME);
1076 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1077 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1079 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1080 goto nla_put_failure;
1082 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1083 dev->ops->join_mesh) {
1085 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1086 goto nla_put_failure;
1088 CMD(set_wds_peer, SET_WDS_PEER);
1089 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1090 CMD(tdls_mgmt, TDLS_MGMT);
1091 CMD(tdls_oper, TDLS_OPER);
1093 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1094 CMD(sched_scan_start, START_SCHED_SCAN);
1095 CMD(probe_client, PROBE_CLIENT);
1096 CMD(set_noack_map, SET_NOACK_MAP);
1097 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1099 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1100 goto nla_put_failure;
1103 #ifdef CONFIG_NL80211_TESTMODE
1104 CMD(testmode_cmd, TESTMODE);
1109 if (dev->ops->connect || dev->ops->auth) {
1111 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1112 goto nla_put_failure;
1115 if (dev->ops->disconnect || dev->ops->deauth) {
1117 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1118 goto nla_put_failure;
1121 nla_nest_end(msg, nl_cmds);
1123 if (dev->ops->remain_on_channel &&
1124 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1125 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1126 dev->wiphy.max_remain_on_channel_duration))
1127 goto nla_put_failure;
1129 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1130 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1131 goto nla_put_failure;
1135 struct nlattr *nl_ftypes, *nl_ifs;
1136 enum nl80211_iftype ift;
1138 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1140 goto nla_put_failure;
1142 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1143 nl_ftypes = nla_nest_start(msg, ift);
1145 goto nla_put_failure;
1147 stypes = mgmt_stypes[ift].tx;
1150 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1151 (i << 4) | IEEE80211_FTYPE_MGMT))
1152 goto nla_put_failure;
1156 nla_nest_end(msg, nl_ftypes);
1159 nla_nest_end(msg, nl_ifs);
1161 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1163 goto nla_put_failure;
1165 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1166 nl_ftypes = nla_nest_start(msg, ift);
1168 goto nla_put_failure;
1170 stypes = mgmt_stypes[ift].rx;
1173 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1174 (i << 4) | IEEE80211_FTYPE_MGMT))
1175 goto nla_put_failure;
1179 nla_nest_end(msg, nl_ftypes);
1181 nla_nest_end(msg, nl_ifs);
1185 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1186 struct nlattr *nl_wowlan;
1188 nl_wowlan = nla_nest_start(msg,
1189 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1191 goto nla_put_failure;
1193 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1194 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1195 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1196 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1197 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1198 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1199 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1200 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1201 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1202 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1203 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1204 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1205 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1206 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1207 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1208 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1209 goto nla_put_failure;
1210 if (dev->wiphy.wowlan.n_patterns) {
1211 struct nl80211_wowlan_pattern_support pat = {
1212 .max_patterns = dev->wiphy.wowlan.n_patterns,
1214 dev->wiphy.wowlan.pattern_min_len,
1216 dev->wiphy.wowlan.pattern_max_len,
1218 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1220 goto nla_put_failure;
1223 nla_nest_end(msg, nl_wowlan);
1227 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1228 dev->wiphy.software_iftypes))
1229 goto nla_put_failure;
1231 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1232 goto nla_put_failure;
1234 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1235 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1236 dev->wiphy.ap_sme_capa))
1237 goto nla_put_failure;
1239 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1240 dev->wiphy.features))
1241 goto nla_put_failure;
1243 if (dev->wiphy.ht_capa_mod_mask &&
1244 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1245 sizeof(*dev->wiphy.ht_capa_mod_mask),
1246 dev->wiphy.ht_capa_mod_mask))
1247 goto nla_put_failure;
1249 return genlmsg_end(msg, hdr);
1252 genlmsg_cancel(msg, hdr);
1256 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1259 int start = cb->args[0];
1260 struct cfg80211_registered_device *dev;
1262 mutex_lock(&cfg80211_mutex);
1263 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1264 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1268 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
1269 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1275 mutex_unlock(&cfg80211_mutex);
1282 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1284 struct sk_buff *msg;
1285 struct cfg80211_registered_device *dev = info->user_ptr[0];
1287 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1291 if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0) {
1296 return genlmsg_reply(msg, info);
1299 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1300 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1301 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1302 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1303 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1304 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1307 static int parse_txq_params(struct nlattr *tb[],
1308 struct ieee80211_txq_params *txq_params)
1310 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1311 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1312 !tb[NL80211_TXQ_ATTR_AIFS])
1315 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1316 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1317 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1318 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1319 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1321 if (txq_params->ac >= NL80211_NUM_ACS)
1327 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1330 * You can only set the channel explicitly for WDS interfaces,
1331 * all others have their channel managed via their respective
1332 * "establish a connection" command (connect, join, ...)
1334 * For AP/GO and mesh mode, the channel can be set with the
1335 * channel userspace API, but is only stored and passed to the
1336 * low-level driver when the AP starts or the mesh is joined.
1337 * This is for backward compatibility, userspace can also give
1338 * the channel in the start-ap or join-mesh commands instead.
1340 * Monitors are special as they are normally slaved to
1341 * whatever else is going on, so they have their own special
1342 * operation to set the monitor channel if possible.
1345 wdev->iftype == NL80211_IFTYPE_AP ||
1346 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1347 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1348 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1351 static bool nl80211_valid_channel_type(struct genl_info *info,
1352 enum nl80211_channel_type *channel_type)
1354 enum nl80211_channel_type tmp;
1356 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1359 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1360 if (tmp != NL80211_CHAN_NO_HT &&
1361 tmp != NL80211_CHAN_HT20 &&
1362 tmp != NL80211_CHAN_HT40PLUS &&
1363 tmp != NL80211_CHAN_HT40MINUS)
1367 *channel_type = tmp;
1372 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1373 struct wireless_dev *wdev,
1374 struct genl_info *info)
1376 struct ieee80211_channel *channel;
1377 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1380 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1383 iftype = wdev->iftype;
1385 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1388 if (!nl80211_can_set_dev_channel(wdev))
1391 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1392 !nl80211_valid_channel_type(info, &channel_type))
1395 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1397 mutex_lock(&rdev->devlist_mtx);
1399 case NL80211_IFTYPE_AP:
1400 case NL80211_IFTYPE_P2P_GO:
1401 if (wdev->beacon_interval) {
1405 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1406 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1412 wdev->preset_chan = channel;
1413 wdev->preset_chantype = channel_type;
1416 case NL80211_IFTYPE_MESH_POINT:
1417 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1419 case NL80211_IFTYPE_MONITOR:
1420 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1425 mutex_unlock(&rdev->devlist_mtx);
1430 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1433 struct net_device *netdev = info->user_ptr[1];
1435 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1438 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1441 struct net_device *dev = info->user_ptr[1];
1442 struct wireless_dev *wdev = dev->ieee80211_ptr;
1445 if (!info->attrs[NL80211_ATTR_MAC])
1448 if (netif_running(dev))
1451 if (!rdev->ops->set_wds_peer)
1454 if (wdev->iftype != NL80211_IFTYPE_WDS)
1457 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1458 return rdev->ops->set_wds_peer(wdev->wiphy, dev, bssid);
1462 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1464 struct cfg80211_registered_device *rdev;
1465 struct net_device *netdev = NULL;
1466 struct wireless_dev *wdev;
1467 int result = 0, rem_txq_params = 0;
1468 struct nlattr *nl_txq_params;
1470 u8 retry_short = 0, retry_long = 0;
1471 u32 frag_threshold = 0, rts_threshold = 0;
1472 u8 coverage_class = 0;
1475 * Try to find the wiphy and netdev. Normally this
1476 * function shouldn't need the netdev, but this is
1477 * done for backward compatibility -- previously
1478 * setting the channel was done per wiphy, but now
1479 * it is per netdev. Previous userland like hostapd
1480 * also passed a netdev to set_wiphy, so that it is
1481 * possible to let that go to the right netdev!
1483 mutex_lock(&cfg80211_mutex);
1485 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1486 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1488 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1489 if (netdev && netdev->ieee80211_ptr) {
1490 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1491 mutex_lock(&rdev->mtx);
1497 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1500 mutex_unlock(&cfg80211_mutex);
1501 return PTR_ERR(rdev);
1507 mutex_lock(&rdev->mtx);
1508 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1509 wdev = netdev->ieee80211_ptr;
1514 * end workaround code, by now the rdev is available
1515 * and locked, and wdev may or may not be NULL.
1518 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1519 result = cfg80211_dev_rename(
1520 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1522 mutex_unlock(&cfg80211_mutex);
1527 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1528 struct ieee80211_txq_params txq_params;
1529 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1531 if (!rdev->ops->set_txq_params) {
1532 result = -EOPNOTSUPP;
1541 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1542 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1547 if (!netif_running(netdev)) {
1552 nla_for_each_nested(nl_txq_params,
1553 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1555 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1556 nla_data(nl_txq_params),
1557 nla_len(nl_txq_params),
1559 result = parse_txq_params(tb, &txq_params);
1563 result = rdev->ops->set_txq_params(&rdev->wiphy,
1571 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1572 result = __nl80211_set_channel(rdev, wdev, info);
1577 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1578 enum nl80211_tx_power_setting type;
1581 if (!rdev->ops->set_tx_power) {
1582 result = -EOPNOTSUPP;
1586 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1587 type = nla_get_u32(info->attrs[idx]);
1589 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1590 (type != NL80211_TX_POWER_AUTOMATIC)) {
1595 if (type != NL80211_TX_POWER_AUTOMATIC) {
1596 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1597 mbm = nla_get_u32(info->attrs[idx]);
1600 result = rdev->ops->set_tx_power(&rdev->wiphy, type, mbm);
1605 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1606 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1608 if ((!rdev->wiphy.available_antennas_tx &&
1609 !rdev->wiphy.available_antennas_rx) ||
1610 !rdev->ops->set_antenna) {
1611 result = -EOPNOTSUPP;
1615 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1616 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1618 /* reject antenna configurations which don't match the
1619 * available antenna masks, except for the "all" mask */
1620 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1621 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1626 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1627 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1629 result = rdev->ops->set_antenna(&rdev->wiphy, tx_ant, rx_ant);
1636 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1637 retry_short = nla_get_u8(
1638 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1639 if (retry_short == 0) {
1643 changed |= WIPHY_PARAM_RETRY_SHORT;
1646 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1647 retry_long = nla_get_u8(
1648 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1649 if (retry_long == 0) {
1653 changed |= WIPHY_PARAM_RETRY_LONG;
1656 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1657 frag_threshold = nla_get_u32(
1658 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1659 if (frag_threshold < 256) {
1663 if (frag_threshold != (u32) -1) {
1665 * Fragments (apart from the last one) are required to
1666 * have even length. Make the fragmentation code
1667 * simpler by stripping LSB should someone try to use
1668 * odd threshold value.
1670 frag_threshold &= ~0x1;
1672 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1675 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1676 rts_threshold = nla_get_u32(
1677 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1678 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1681 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1682 coverage_class = nla_get_u8(
1683 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1684 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1688 u8 old_retry_short, old_retry_long;
1689 u32 old_frag_threshold, old_rts_threshold;
1690 u8 old_coverage_class;
1692 if (!rdev->ops->set_wiphy_params) {
1693 result = -EOPNOTSUPP;
1697 old_retry_short = rdev->wiphy.retry_short;
1698 old_retry_long = rdev->wiphy.retry_long;
1699 old_frag_threshold = rdev->wiphy.frag_threshold;
1700 old_rts_threshold = rdev->wiphy.rts_threshold;
1701 old_coverage_class = rdev->wiphy.coverage_class;
1703 if (changed & WIPHY_PARAM_RETRY_SHORT)
1704 rdev->wiphy.retry_short = retry_short;
1705 if (changed & WIPHY_PARAM_RETRY_LONG)
1706 rdev->wiphy.retry_long = retry_long;
1707 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1708 rdev->wiphy.frag_threshold = frag_threshold;
1709 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1710 rdev->wiphy.rts_threshold = rts_threshold;
1711 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1712 rdev->wiphy.coverage_class = coverage_class;
1714 result = rdev->ops->set_wiphy_params(&rdev->wiphy, changed);
1716 rdev->wiphy.retry_short = old_retry_short;
1717 rdev->wiphy.retry_long = old_retry_long;
1718 rdev->wiphy.frag_threshold = old_frag_threshold;
1719 rdev->wiphy.rts_threshold = old_rts_threshold;
1720 rdev->wiphy.coverage_class = old_coverage_class;
1725 mutex_unlock(&rdev->mtx);
1731 static inline u64 wdev_id(struct wireless_dev *wdev)
1733 return (u64)wdev->identifier |
1734 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1737 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1738 struct cfg80211_registered_device *rdev,
1739 struct wireless_dev *wdev)
1741 struct net_device *dev = wdev->netdev;
1744 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1749 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1750 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1751 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr)))
1752 goto nla_put_failure;
1754 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1755 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1756 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1757 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1758 rdev->devlist_generation ^
1759 (cfg80211_rdev_list_generation << 2)))
1760 goto nla_put_failure;
1762 if (rdev->monitor_channel) {
1763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1764 rdev->monitor_channel->center_freq) ||
1765 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1766 rdev->monitor_channel_type))
1767 goto nla_put_failure;
1770 return genlmsg_end(msg, hdr);
1773 genlmsg_cancel(msg, hdr);
1777 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1781 int wp_start = cb->args[0];
1782 int if_start = cb->args[1];
1783 struct cfg80211_registered_device *rdev;
1784 struct wireless_dev *wdev;
1786 mutex_lock(&cfg80211_mutex);
1787 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1788 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1790 if (wp_idx < wp_start) {
1796 mutex_lock(&rdev->devlist_mtx);
1797 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1798 if (if_idx < if_start) {
1802 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1803 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1805 mutex_unlock(&rdev->devlist_mtx);
1810 mutex_unlock(&rdev->devlist_mtx);
1815 mutex_unlock(&cfg80211_mutex);
1817 cb->args[0] = wp_idx;
1818 cb->args[1] = if_idx;
1823 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1825 struct sk_buff *msg;
1826 struct cfg80211_registered_device *dev = info->user_ptr[0];
1827 struct wireless_dev *wdev = info->user_ptr[1];
1829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1833 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1839 return genlmsg_reply(msg, info);
1842 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1843 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1844 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1845 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1846 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1847 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1850 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1852 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1860 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1861 nla, mntr_flags_policy))
1864 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1866 *mntrflags |= (1<<flag);
1871 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1872 struct net_device *netdev, u8 use_4addr,
1873 enum nl80211_iftype iftype)
1876 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1882 case NL80211_IFTYPE_AP_VLAN:
1883 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1886 case NL80211_IFTYPE_STATION:
1887 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1897 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1900 struct vif_params params;
1902 enum nl80211_iftype otype, ntype;
1903 struct net_device *dev = info->user_ptr[1];
1904 u32 _flags, *flags = NULL;
1905 bool change = false;
1907 memset(¶ms, 0, sizeof(params));
1909 otype = ntype = dev->ieee80211_ptr->iftype;
1911 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1912 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1915 if (ntype > NL80211_IFTYPE_MAX)
1919 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1920 struct wireless_dev *wdev = dev->ieee80211_ptr;
1922 if (ntype != NL80211_IFTYPE_MESH_POINT)
1924 if (netif_running(dev))
1928 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1929 IEEE80211_MAX_MESH_ID_LEN);
1930 wdev->mesh_id_up_len =
1931 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1932 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1933 wdev->mesh_id_up_len);
1937 if (info->attrs[NL80211_ATTR_4ADDR]) {
1938 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1940 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1944 params.use_4addr = -1;
1947 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1948 if (ntype != NL80211_IFTYPE_MONITOR)
1950 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1960 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1964 if (!err && params.use_4addr != -1)
1965 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1970 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1973 struct vif_params params;
1974 struct wireless_dev *wdev;
1975 struct sk_buff *msg;
1977 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1980 memset(¶ms, 0, sizeof(params));
1982 if (!info->attrs[NL80211_ATTR_IFNAME])
1985 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1986 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1987 if (type > NL80211_IFTYPE_MAX)
1991 if (!rdev->ops->add_virtual_intf ||
1992 !(rdev->wiphy.interface_modes & (1 << type)))
1995 if (info->attrs[NL80211_ATTR_4ADDR]) {
1996 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1997 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2002 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2006 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2007 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2009 wdev = rdev->ops->add_virtual_intf(&rdev->wiphy,
2010 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2011 type, err ? NULL : &flags, ¶ms);
2014 return PTR_ERR(wdev);
2017 if (type == NL80211_IFTYPE_MESH_POINT &&
2018 info->attrs[NL80211_ATTR_MESH_ID]) {
2020 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2021 IEEE80211_MAX_MESH_ID_LEN);
2022 wdev->mesh_id_up_len =
2023 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2024 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2025 wdev->mesh_id_up_len);
2029 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
2035 return genlmsg_reply(msg, info);
2038 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2041 struct wireless_dev *wdev = info->user_ptr[1];
2043 if (!rdev->ops->del_virtual_intf)
2047 * If we remove a wireless device without a netdev then clear
2048 * user_ptr[1] so that nl80211_post_doit won't dereference it
2049 * to check if it needs to do dev_put(). Otherwise it crashes
2050 * since the wdev has been freed, unlike with a netdev where
2051 * we need the dev_put() for the netdev to really be freed.
2054 info->user_ptr[1] = NULL;
2056 return rdev->ops->del_virtual_intf(&rdev->wiphy, wdev);
2059 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2062 struct net_device *dev = info->user_ptr[1];
2065 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2068 if (!rdev->ops->set_noack_map)
2071 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2073 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2076 struct get_key_cookie {
2077 struct sk_buff *msg;
2082 static void get_key_callback(void *c, struct key_params *params)
2085 struct get_key_cookie *cookie = c;
2088 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2089 params->key_len, params->key)) ||
2091 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2092 params->seq_len, params->seq)) ||
2094 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2096 goto nla_put_failure;
2098 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2100 goto nla_put_failure;
2103 nla_put(cookie->msg, NL80211_KEY_DATA,
2104 params->key_len, params->key)) ||
2106 nla_put(cookie->msg, NL80211_KEY_SEQ,
2107 params->seq_len, params->seq)) ||
2109 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2111 goto nla_put_failure;
2113 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2114 goto nla_put_failure;
2116 nla_nest_end(cookie->msg, key);
2123 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2125 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2127 struct net_device *dev = info->user_ptr[1];
2129 const u8 *mac_addr = NULL;
2131 struct get_key_cookie cookie = {
2135 struct sk_buff *msg;
2137 if (info->attrs[NL80211_ATTR_KEY_IDX])
2138 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2143 if (info->attrs[NL80211_ATTR_MAC])
2144 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2146 pairwise = !!mac_addr;
2147 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2148 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2149 if (kt >= NUM_NL80211_KEYTYPES)
2151 if (kt != NL80211_KEYTYPE_GROUP &&
2152 kt != NL80211_KEYTYPE_PAIRWISE)
2154 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2157 if (!rdev->ops->get_key)
2160 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2164 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2165 NL80211_CMD_NEW_KEY);
2167 return PTR_ERR(hdr);
2170 cookie.idx = key_idx;
2172 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2173 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2174 goto nla_put_failure;
2176 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2177 goto nla_put_failure;
2179 if (pairwise && mac_addr &&
2180 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2183 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2184 mac_addr, &cookie, get_key_callback);
2190 goto nla_put_failure;
2192 genlmsg_end(msg, hdr);
2193 return genlmsg_reply(msg, info);
2202 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2204 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2205 struct key_parse key;
2207 struct net_device *dev = info->user_ptr[1];
2209 err = nl80211_parse_key(info, &key);
2216 /* only support setting default key */
2217 if (!key.def && !key.defmgmt)
2220 wdev_lock(dev->ieee80211_ptr);
2223 if (!rdev->ops->set_default_key) {
2228 err = nl80211_key_allowed(dev->ieee80211_ptr);
2232 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2233 key.def_uni, key.def_multi);
2238 #ifdef CONFIG_CFG80211_WEXT
2239 dev->ieee80211_ptr->wext.default_key = key.idx;
2242 if (key.def_uni || !key.def_multi) {
2247 if (!rdev->ops->set_default_mgmt_key) {
2252 err = nl80211_key_allowed(dev->ieee80211_ptr);
2256 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2261 #ifdef CONFIG_CFG80211_WEXT
2262 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2267 wdev_unlock(dev->ieee80211_ptr);
2272 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2276 struct net_device *dev = info->user_ptr[1];
2277 struct key_parse key;
2278 const u8 *mac_addr = NULL;
2280 err = nl80211_parse_key(info, &key);
2287 if (info->attrs[NL80211_ATTR_MAC])
2288 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2290 if (key.type == -1) {
2292 key.type = NL80211_KEYTYPE_PAIRWISE;
2294 key.type = NL80211_KEYTYPE_GROUP;
2298 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2299 key.type != NL80211_KEYTYPE_GROUP)
2302 if (!rdev->ops->add_key)
2305 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2306 key.type == NL80211_KEYTYPE_PAIRWISE,
2310 wdev_lock(dev->ieee80211_ptr);
2311 err = nl80211_key_allowed(dev->ieee80211_ptr);
2313 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2314 key.type == NL80211_KEYTYPE_PAIRWISE,
2316 wdev_unlock(dev->ieee80211_ptr);
2321 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2325 struct net_device *dev = info->user_ptr[1];
2326 u8 *mac_addr = NULL;
2327 struct key_parse key;
2329 err = nl80211_parse_key(info, &key);
2333 if (info->attrs[NL80211_ATTR_MAC])
2334 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2336 if (key.type == -1) {
2338 key.type = NL80211_KEYTYPE_PAIRWISE;
2340 key.type = NL80211_KEYTYPE_GROUP;
2344 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2345 key.type != NL80211_KEYTYPE_GROUP)
2348 if (!rdev->ops->del_key)
2351 wdev_lock(dev->ieee80211_ptr);
2352 err = nl80211_key_allowed(dev->ieee80211_ptr);
2354 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2355 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2359 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2360 key.type == NL80211_KEYTYPE_PAIRWISE,
2363 #ifdef CONFIG_CFG80211_WEXT
2365 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2366 dev->ieee80211_ptr->wext.default_key = -1;
2367 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2368 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2371 wdev_unlock(dev->ieee80211_ptr);
2376 static int nl80211_parse_beacon(struct genl_info *info,
2377 struct cfg80211_beacon_data *bcn)
2379 bool haveinfo = false;
2381 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2382 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2383 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2384 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2387 memset(bcn, 0, sizeof(*bcn));
2389 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2390 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2391 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2397 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2398 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2400 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2407 if (info->attrs[NL80211_ATTR_IE]) {
2408 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2409 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2412 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2413 bcn->proberesp_ies =
2414 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2415 bcn->proberesp_ies_len =
2416 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2419 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2420 bcn->assocresp_ies =
2421 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2422 bcn->assocresp_ies_len =
2423 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2426 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2428 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2429 bcn->probe_resp_len =
2430 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2436 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2437 struct cfg80211_ap_settings *params)
2439 struct wireless_dev *wdev;
2442 mutex_lock(&rdev->devlist_mtx);
2444 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2445 if (wdev->iftype != NL80211_IFTYPE_AP &&
2446 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2449 if (!wdev->preset_chan)
2452 params->channel = wdev->preset_chan;
2453 params->channel_type = wdev->preset_chantype;
2458 mutex_unlock(&rdev->devlist_mtx);
2463 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2466 struct net_device *dev = info->user_ptr[1];
2467 struct wireless_dev *wdev = dev->ieee80211_ptr;
2468 struct cfg80211_ap_settings params;
2471 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2472 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2475 if (!rdev->ops->start_ap)
2478 if (wdev->beacon_interval)
2481 memset(¶ms, 0, sizeof(params));
2483 /* these are required for START_AP */
2484 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2485 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2486 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2489 err = nl80211_parse_beacon(info, ¶ms.beacon);
2493 params.beacon_interval =
2494 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2495 params.dtim_period =
2496 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2498 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2503 * In theory, some of these attributes should be required here
2504 * but since they were not used when the command was originally
2505 * added, keep them optional for old user space programs to let
2506 * them continue to work with drivers that do not need the
2507 * additional information -- drivers must check!
2509 if (info->attrs[NL80211_ATTR_SSID]) {
2510 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2512 nla_len(info->attrs[NL80211_ATTR_SSID]);
2513 if (params.ssid_len == 0 ||
2514 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2518 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2519 params.hidden_ssid = nla_get_u32(
2520 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2521 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2522 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2523 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2527 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2529 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2530 params.auth_type = nla_get_u32(
2531 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2532 if (!nl80211_valid_auth_type(params.auth_type))
2535 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2537 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2538 NL80211_MAX_NR_CIPHER_SUITES);
2542 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2543 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2545 params.inactivity_timeout = nla_get_u16(
2546 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2549 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2550 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2552 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2553 !nl80211_valid_channel_type(info, &channel_type))
2556 params.channel = rdev_freq_to_chan(rdev,
2557 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2559 if (!params.channel)
2561 params.channel_type = channel_type;
2562 } else if (wdev->preset_chan) {
2563 params.channel = wdev->preset_chan;
2564 params.channel_type = wdev->preset_chantype;
2565 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2568 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2569 params.channel_type))
2572 mutex_lock(&rdev->devlist_mtx);
2573 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2575 mutex_unlock(&rdev->devlist_mtx);
2580 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2582 wdev->preset_chan = params.channel;
2583 wdev->preset_chantype = params.channel_type;
2584 wdev->beacon_interval = params.beacon_interval;
2585 wdev->channel = params.channel;
2590 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2593 struct net_device *dev = info->user_ptr[1];
2594 struct wireless_dev *wdev = dev->ieee80211_ptr;
2595 struct cfg80211_beacon_data params;
2598 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2599 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2602 if (!rdev->ops->change_beacon)
2605 if (!wdev->beacon_interval)
2608 err = nl80211_parse_beacon(info, ¶ms);
2612 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2615 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2618 struct net_device *dev = info->user_ptr[1];
2620 return cfg80211_stop_ap(rdev, dev);
2623 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2624 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2625 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2626 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2627 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2628 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2629 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2632 static int parse_station_flags(struct genl_info *info,
2633 enum nl80211_iftype iftype,
2634 struct station_parameters *params)
2636 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2641 * Try parsing the new attribute first so userspace
2642 * can specify both for older kernels.
2644 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2646 struct nl80211_sta_flag_update *sta_flags;
2648 sta_flags = nla_data(nla);
2649 params->sta_flags_mask = sta_flags->mask;
2650 params->sta_flags_set = sta_flags->set;
2651 if ((params->sta_flags_mask |
2652 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2657 /* if present, parse the old attribute */
2659 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2663 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2664 nla, sta_flags_policy))
2668 * Only allow certain flags for interface types so that
2669 * other attributes are silently ignored. Remember that
2670 * this is backward compatibility code with old userspace
2671 * and shouldn't be hit in other cases anyway.
2674 case NL80211_IFTYPE_AP:
2675 case NL80211_IFTYPE_AP_VLAN:
2676 case NL80211_IFTYPE_P2P_GO:
2677 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2678 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2679 BIT(NL80211_STA_FLAG_WME) |
2680 BIT(NL80211_STA_FLAG_MFP);
2682 case NL80211_IFTYPE_P2P_CLIENT:
2683 case NL80211_IFTYPE_STATION:
2684 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2685 BIT(NL80211_STA_FLAG_TDLS_PEER);
2687 case NL80211_IFTYPE_MESH_POINT:
2688 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2689 BIT(NL80211_STA_FLAG_MFP) |
2690 BIT(NL80211_STA_FLAG_AUTHORIZED);
2695 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2697 params->sta_flags_set |= (1<<flag);
2699 /* no longer support new API additions in old API */
2700 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2708 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2711 struct nlattr *rate;
2715 rate = nla_nest_start(msg, attr);
2717 goto nla_put_failure;
2719 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2720 bitrate = cfg80211_calculate_bitrate(info);
2721 /* report 16-bit bitrate only if we can */
2722 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2724 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2725 (bitrate_compat > 0 &&
2726 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
2727 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2728 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2729 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2730 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2731 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2732 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2733 goto nla_put_failure;
2735 nla_nest_end(msg, rate);
2742 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2744 struct cfg80211_registered_device *rdev,
2745 struct net_device *dev,
2746 const u8 *mac_addr, struct station_info *sinfo)
2749 struct nlattr *sinfoattr, *bss_param;
2751 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2755 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2756 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2757 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2758 goto nla_put_failure;
2760 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2762 goto nla_put_failure;
2763 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2764 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2765 sinfo->connected_time))
2766 goto nla_put_failure;
2767 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2768 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2769 sinfo->inactive_time))
2770 goto nla_put_failure;
2771 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2772 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2774 goto nla_put_failure;
2775 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2776 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2778 goto nla_put_failure;
2779 if ((sinfo->filled & STATION_INFO_LLID) &&
2780 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2781 goto nla_put_failure;
2782 if ((sinfo->filled & STATION_INFO_PLID) &&
2783 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2784 goto nla_put_failure;
2785 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2786 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2787 sinfo->plink_state))
2788 goto nla_put_failure;
2789 switch (rdev->wiphy.signal_type) {
2790 case CFG80211_SIGNAL_TYPE_MBM:
2791 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2792 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2794 goto nla_put_failure;
2795 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2796 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2798 goto nla_put_failure;
2803 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2804 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2805 NL80211_STA_INFO_TX_BITRATE))
2806 goto nla_put_failure;
2808 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2809 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2810 NL80211_STA_INFO_RX_BITRATE))
2811 goto nla_put_failure;
2813 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2814 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2816 goto nla_put_failure;
2817 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2818 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2820 goto nla_put_failure;
2821 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2822 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2824 goto nla_put_failure;
2825 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2826 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2828 goto nla_put_failure;
2829 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2830 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2831 sinfo->beacon_loss_count))
2832 goto nla_put_failure;
2833 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2834 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2836 goto nla_put_failure;
2838 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2839 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2840 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2841 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2842 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2843 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2844 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2845 sinfo->bss_param.dtim_period) ||
2846 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2847 sinfo->bss_param.beacon_interval))
2848 goto nla_put_failure;
2850 nla_nest_end(msg, bss_param);
2852 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2853 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2854 sizeof(struct nl80211_sta_flag_update),
2856 goto nla_put_failure;
2857 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2858 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2860 goto nla_put_failure;
2861 nla_nest_end(msg, sinfoattr);
2863 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2864 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2865 sinfo->assoc_req_ies))
2866 goto nla_put_failure;
2868 return genlmsg_end(msg, hdr);
2871 genlmsg_cancel(msg, hdr);
2875 static int nl80211_dump_station(struct sk_buff *skb,
2876 struct netlink_callback *cb)
2878 struct station_info sinfo;
2879 struct cfg80211_registered_device *dev;
2880 struct net_device *netdev;
2881 u8 mac_addr[ETH_ALEN];
2882 int sta_idx = cb->args[1];
2885 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2889 if (!dev->ops->dump_station) {
2895 memset(&sinfo, 0, sizeof(sinfo));
2896 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2903 if (nl80211_send_station(skb,
2904 NETLINK_CB(cb->skb).pid,
2905 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2906 dev, netdev, mac_addr,
2915 cb->args[1] = sta_idx;
2918 nl80211_finish_netdev_dump(dev);
2923 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2926 struct net_device *dev = info->user_ptr[1];
2927 struct station_info sinfo;
2928 struct sk_buff *msg;
2929 u8 *mac_addr = NULL;
2932 memset(&sinfo, 0, sizeof(sinfo));
2934 if (!info->attrs[NL80211_ATTR_MAC])
2937 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2939 if (!rdev->ops->get_station)
2942 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2946 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2950 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2951 rdev, dev, mac_addr, &sinfo) < 0) {
2956 return genlmsg_reply(msg, info);
2960 * Get vlan interface making sure it is running and on the right wiphy.
2962 static struct net_device *get_vlan(struct genl_info *info,
2963 struct cfg80211_registered_device *rdev)
2965 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2966 struct net_device *v;
2972 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2974 return ERR_PTR(-ENODEV);
2976 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2981 if (!netif_running(v)) {
2989 return ERR_PTR(ret);
2992 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2994 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2996 struct net_device *dev = info->user_ptr[1];
2997 struct station_parameters params;
2998 u8 *mac_addr = NULL;
3000 memset(¶ms, 0, sizeof(params));
3002 params.listen_interval = -1;
3003 params.plink_state = -1;
3005 if (info->attrs[NL80211_ATTR_STA_AID])
3008 if (!info->attrs[NL80211_ATTR_MAC])
3011 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3013 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3014 params.supported_rates =
3015 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3016 params.supported_rates_len =
3017 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3020 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3021 params.listen_interval =
3022 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3024 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3026 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3028 if (!rdev->ops->change_station)
3031 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3034 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3035 params.plink_action =
3036 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3038 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3039 params.plink_state =
3040 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3042 switch (dev->ieee80211_ptr->iftype) {
3043 case NL80211_IFTYPE_AP:
3044 case NL80211_IFTYPE_AP_VLAN:
3045 case NL80211_IFTYPE_P2P_GO:
3046 /* disallow mesh-specific things */
3047 if (params.plink_action)
3050 /* TDLS can't be set, ... */
3051 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3054 * ... but don't bother the driver with it. This works around
3055 * a hostapd/wpa_supplicant issue -- it always includes the
3056 * TLDS_PEER flag in the mask even for AP mode.
3058 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3060 /* accept only the listed bits */
3061 if (params.sta_flags_mask &
3062 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3063 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3064 BIT(NL80211_STA_FLAG_WME) |
3065 BIT(NL80211_STA_FLAG_MFP)))
3068 /* must be last in here for error handling */
3069 params.vlan = get_vlan(info, rdev);
3070 if (IS_ERR(params.vlan))
3071 return PTR_ERR(params.vlan);
3073 case NL80211_IFTYPE_P2P_CLIENT:
3074 case NL80211_IFTYPE_STATION:
3076 * Don't allow userspace to change the TDLS_PEER flag,
3077 * but silently ignore attempts to change it since we
3078 * don't have state here to verify that it doesn't try
3079 * to change the flag.
3081 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3083 case NL80211_IFTYPE_ADHOC:
3084 /* disallow things sta doesn't support */
3085 if (params.plink_action)
3089 if (params.listen_interval >= 0)
3091 /* reject any changes other than AUTHORIZED */
3092 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3095 case NL80211_IFTYPE_MESH_POINT:
3096 /* disallow things mesh doesn't support */
3101 if (params.listen_interval >= 0)
3104 * No special handling for TDLS here -- the userspace
3105 * mesh code doesn't have this bug.
3107 if (params.sta_flags_mask &
3108 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3109 BIT(NL80211_STA_FLAG_MFP) |
3110 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3117 /* be aware of params.vlan when changing code here */
3119 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3122 dev_put(params.vlan);
3127 static struct nla_policy
3128 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3129 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3130 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3133 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3137 struct net_device *dev = info->user_ptr[1];
3138 struct station_parameters params;
3139 u8 *mac_addr = NULL;
3141 memset(¶ms, 0, sizeof(params));
3143 if (!info->attrs[NL80211_ATTR_MAC])
3146 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3149 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3152 if (!info->attrs[NL80211_ATTR_STA_AID])
3155 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3156 params.supported_rates =
3157 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3158 params.supported_rates_len =
3159 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3160 params.listen_interval =
3161 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3163 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3164 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3167 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3169 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3171 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3172 params.plink_action =
3173 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3175 if (!rdev->ops->add_station)
3178 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3181 switch (dev->ieee80211_ptr->iftype) {
3182 case NL80211_IFTYPE_AP:
3183 case NL80211_IFTYPE_AP_VLAN:
3184 case NL80211_IFTYPE_P2P_GO:
3185 /* parse WME attributes if sta is WME capable */
3186 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3187 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3188 info->attrs[NL80211_ATTR_STA_WME]) {
3189 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3192 nla = info->attrs[NL80211_ATTR_STA_WME];
3193 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3194 nl80211_sta_wme_policy);
3198 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3199 params.uapsd_queues =
3200 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3201 if (params.uapsd_queues &
3202 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3205 if (tb[NL80211_STA_WME_MAX_SP])
3207 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3210 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3213 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3215 /* TDLS peers cannot be added */
3216 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3218 /* but don't bother the driver with it */
3219 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3221 /* must be last in here for error handling */
3222 params.vlan = get_vlan(info, rdev);
3223 if (IS_ERR(params.vlan))
3224 return PTR_ERR(params.vlan);
3226 case NL80211_IFTYPE_MESH_POINT:
3227 /* TDLS peers cannot be added */
3228 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3231 case NL80211_IFTYPE_STATION:
3232 /* Only TDLS peers can be added */
3233 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3235 /* Can only add if TDLS ... */
3236 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3238 /* ... with external setup is supported */
3239 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3246 /* be aware of params.vlan when changing code here */
3248 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3251 dev_put(params.vlan);
3255 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3258 struct net_device *dev = info->user_ptr[1];
3259 u8 *mac_addr = NULL;
3261 if (info->attrs[NL80211_ATTR_MAC])
3262 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3264 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3265 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3266 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3267 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3270 if (!rdev->ops->del_station)
3273 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3276 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3277 int flags, struct net_device *dev,
3278 u8 *dst, u8 *next_hop,
3279 struct mpath_info *pinfo)
3282 struct nlattr *pinfoattr;
3284 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3288 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3289 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3290 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3291 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3292 goto nla_put_failure;
3294 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3296 goto nla_put_failure;
3297 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3298 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3300 goto nla_put_failure;
3301 if (((pinfo->filled & MPATH_INFO_SN) &&
3302 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3303 ((pinfo->filled & MPATH_INFO_METRIC) &&
3304 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3306 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3307 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3309 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3310 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3312 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3313 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3314 pinfo->discovery_timeout)) ||
3315 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3316 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3317 pinfo->discovery_retries)))
3318 goto nla_put_failure;
3320 nla_nest_end(msg, pinfoattr);
3322 return genlmsg_end(msg, hdr);
3325 genlmsg_cancel(msg, hdr);
3329 static int nl80211_dump_mpath(struct sk_buff *skb,
3330 struct netlink_callback *cb)
3332 struct mpath_info pinfo;
3333 struct cfg80211_registered_device *dev;
3334 struct net_device *netdev;
3336 u8 next_hop[ETH_ALEN];
3337 int path_idx = cb->args[1];
3340 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3344 if (!dev->ops->dump_mpath) {
3349 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3355 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3356 dst, next_hop, &pinfo);
3362 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3363 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3364 netdev, dst, next_hop,
3373 cb->args[1] = path_idx;
3376 nl80211_finish_netdev_dump(dev);
3380 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3382 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3384 struct net_device *dev = info->user_ptr[1];
3385 struct mpath_info pinfo;
3386 struct sk_buff *msg;
3388 u8 next_hop[ETH_ALEN];
3390 memset(&pinfo, 0, sizeof(pinfo));
3392 if (!info->attrs[NL80211_ATTR_MAC])
3395 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3397 if (!rdev->ops->get_mpath)
3400 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3403 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3411 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3412 dev, dst, next_hop, &pinfo) < 0) {
3417 return genlmsg_reply(msg, info);
3420 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3423 struct net_device *dev = info->user_ptr[1];
3425 u8 *next_hop = NULL;
3427 if (!info->attrs[NL80211_ATTR_MAC])
3430 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3433 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3434 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3436 if (!rdev->ops->change_mpath)
3439 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3442 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3445 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3448 struct net_device *dev = info->user_ptr[1];
3450 u8 *next_hop = NULL;
3452 if (!info->attrs[NL80211_ATTR_MAC])
3455 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3458 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3459 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3461 if (!rdev->ops->add_mpath)
3464 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3467 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3470 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3473 struct net_device *dev = info->user_ptr[1];
3476 if (info->attrs[NL80211_ATTR_MAC])
3477 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3479 if (!rdev->ops->del_mpath)
3482 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3485 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3488 struct net_device *dev = info->user_ptr[1];
3489 struct bss_parameters params;
3491 memset(¶ms, 0, sizeof(params));
3492 /* default to not changing parameters */
3493 params.use_cts_prot = -1;
3494 params.use_short_preamble = -1;
3495 params.use_short_slot_time = -1;
3496 params.ap_isolate = -1;
3497 params.ht_opmode = -1;
3499 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3500 params.use_cts_prot =
3501 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3502 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3503 params.use_short_preamble =
3504 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3505 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3506 params.use_short_slot_time =
3507 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3508 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3509 params.basic_rates =
3510 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3511 params.basic_rates_len =
3512 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3514 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3515 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3516 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3518 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3520 if (!rdev->ops->change_bss)
3523 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3524 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3527 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3530 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3531 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3532 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3533 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3534 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3535 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3536 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3539 static int parse_reg_rule(struct nlattr *tb[],
3540 struct ieee80211_reg_rule *reg_rule)
3542 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3543 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3545 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3547 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3549 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3551 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3553 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3556 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3558 freq_range->start_freq_khz =
3559 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3560 freq_range->end_freq_khz =
3561 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3562 freq_range->max_bandwidth_khz =
3563 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3565 power_rule->max_eirp =
3566 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3568 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3569 power_rule->max_antenna_gain =
3570 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3575 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3581 * You should only get this when cfg80211 hasn't yet initialized
3582 * completely when built-in to the kernel right between the time
3583 * window between nl80211_init() and regulatory_init(), if that is
3586 mutex_lock(&cfg80211_mutex);
3587 if (unlikely(!cfg80211_regdomain)) {
3588 mutex_unlock(&cfg80211_mutex);
3589 return -EINPROGRESS;
3591 mutex_unlock(&cfg80211_mutex);
3593 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3596 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3598 r = regulatory_hint_user(data);
3603 static int nl80211_get_mesh_config(struct sk_buff *skb,
3604 struct genl_info *info)
3606 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3607 struct net_device *dev = info->user_ptr[1];
3608 struct wireless_dev *wdev = dev->ieee80211_ptr;
3609 struct mesh_config cur_params;
3612 struct nlattr *pinfoattr;
3613 struct sk_buff *msg;
3615 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3618 if (!rdev->ops->get_mesh_config)
3622 /* If not connected, get default parameters */
3623 if (!wdev->mesh_id_len)
3624 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3626 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3633 /* Draw up a netlink message to send back */
3634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3637 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3638 NL80211_CMD_GET_MESH_CONFIG);
3641 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3643 goto nla_put_failure;
3644 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3645 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3646 cur_params.dot11MeshRetryTimeout) ||
3647 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3648 cur_params.dot11MeshConfirmTimeout) ||
3649 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3650 cur_params.dot11MeshHoldingTimeout) ||
3651 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3652 cur_params.dot11MeshMaxPeerLinks) ||
3653 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3654 cur_params.dot11MeshMaxRetries) ||
3655 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3656 cur_params.dot11MeshTTL) ||
3657 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3658 cur_params.element_ttl) ||
3659 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3660 cur_params.auto_open_plinks) ||
3661 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3662 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3663 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3664 cur_params.dot11MeshHWMPmaxPREQretries) ||
3665 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3666 cur_params.path_refresh_time) ||
3667 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3668 cur_params.min_discovery_timeout) ||
3669 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3670 cur_params.dot11MeshHWMPactivePathTimeout) ||
3671 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3672 cur_params.dot11MeshHWMPpreqMinInterval) ||
3673 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3674 cur_params.dot11MeshHWMPperrMinInterval) ||
3675 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3676 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3677 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3678 cur_params.dot11MeshHWMPRootMode) ||
3679 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3680 cur_params.dot11MeshHWMPRannInterval) ||
3681 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3682 cur_params.dot11MeshGateAnnouncementProtocol) ||
3683 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3684 cur_params.dot11MeshForwarding) ||
3685 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3686 cur_params.rssi_threshold) ||
3687 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3688 cur_params.ht_opmode) ||
3689 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3690 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3691 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3692 cur_params.dot11MeshHWMProotInterval) ||
3693 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3694 cur_params.dot11MeshHWMPconfirmationInterval))
3695 goto nla_put_failure;
3696 nla_nest_end(msg, pinfoattr);
3697 genlmsg_end(msg, hdr);
3698 return genlmsg_reply(msg, info);
3701 genlmsg_cancel(msg, hdr);
3707 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3708 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3709 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3710 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3711 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3712 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3713 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3714 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3715 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3716 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3717 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3718 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3719 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3720 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3721 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3722 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3723 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3724 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3725 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3726 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3727 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3728 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3729 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3730 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3731 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3732 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3735 static const struct nla_policy
3736 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3737 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3738 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3739 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3740 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3741 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3742 .len = IEEE80211_MAX_DATA_LEN },
3743 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3746 static int nl80211_parse_mesh_config(struct genl_info *info,
3747 struct mesh_config *cfg,
3750 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3753 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3755 if (table[attr_num]) {\
3756 cfg->param = nla_fn(table[attr_num]); \
3757 mask |= (1 << (attr_num - 1)); \
3762 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3764 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3765 info->attrs[NL80211_ATTR_MESH_CONFIG],
3766 nl80211_meshconf_params_policy))
3769 /* This makes sure that there aren't more than 32 mesh config
3770 * parameters (otherwise our bitfield scheme would not work.) */
3771 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3773 /* Fill in the params struct */
3774 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3775 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3777 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3778 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3780 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3781 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3783 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3784 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3786 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3787 mask, NL80211_MESHCONF_MAX_RETRIES,
3789 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3790 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3791 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3792 mask, NL80211_MESHCONF_ELEMENT_TTL,
3794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3795 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3798 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3800 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3801 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3803 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3804 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3806 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3807 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3809 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3810 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3812 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3813 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3815 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3816 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3818 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3819 dot11MeshHWMPnetDiameterTraversalTime, mask,
3820 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3822 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3823 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3824 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3825 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3827 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3828 dot11MeshGateAnnouncementProtocol, mask,
3829 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3831 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3832 mask, NL80211_MESHCONF_FORWARDING,
3834 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3835 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3837 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3838 mask, NL80211_MESHCONF_HT_OPMODE,
3840 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3842 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3844 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3845 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3847 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3848 dot11MeshHWMPconfirmationInterval, mask,
3849 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3856 #undef FILL_IN_MESH_PARAM_IF_SET
3859 static int nl80211_parse_mesh_setup(struct genl_info *info,
3860 struct mesh_setup *setup)
3862 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3864 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3866 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3867 info->attrs[NL80211_ATTR_MESH_SETUP],
3868 nl80211_mesh_setup_params_policy))
3871 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3872 setup->sync_method =
3873 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3874 IEEE80211_SYNC_METHOD_VENDOR :
3875 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3877 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3878 setup->path_sel_proto =
3879 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3880 IEEE80211_PATH_PROTOCOL_VENDOR :
3881 IEEE80211_PATH_PROTOCOL_HWMP;
3883 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3884 setup->path_metric =
3885 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3886 IEEE80211_PATH_METRIC_VENDOR :
3887 IEEE80211_PATH_METRIC_AIRTIME;
3890 if (tb[NL80211_MESH_SETUP_IE]) {
3891 struct nlattr *ieattr =
3892 tb[NL80211_MESH_SETUP_IE];
3893 if (!is_valid_ie_attr(ieattr))
3895 setup->ie = nla_data(ieattr);
3896 setup->ie_len = nla_len(ieattr);
3898 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3899 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3904 static int nl80211_update_mesh_config(struct sk_buff *skb,
3905 struct genl_info *info)
3907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3908 struct net_device *dev = info->user_ptr[1];
3909 struct wireless_dev *wdev = dev->ieee80211_ptr;
3910 struct mesh_config cfg;
3914 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3917 if (!rdev->ops->update_mesh_config)
3920 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3925 if (!wdev->mesh_id_len)
3929 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3937 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3939 struct sk_buff *msg;
3941 struct nlattr *nl_reg_rules;
3945 mutex_lock(&cfg80211_mutex);
3947 if (!cfg80211_regdomain)
3950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3956 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3957 NL80211_CMD_GET_REG);
3961 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3962 cfg80211_regdomain->alpha2) ||
3963 (cfg80211_regdomain->dfs_region &&
3964 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3965 cfg80211_regdomain->dfs_region)))
3966 goto nla_put_failure;
3968 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3970 goto nla_put_failure;
3972 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3973 struct nlattr *nl_reg_rule;
3974 const struct ieee80211_reg_rule *reg_rule;
3975 const struct ieee80211_freq_range *freq_range;
3976 const struct ieee80211_power_rule *power_rule;
3978 reg_rule = &cfg80211_regdomain->reg_rules[i];
3979 freq_range = ®_rule->freq_range;
3980 power_rule = ®_rule->power_rule;
3982 nl_reg_rule = nla_nest_start(msg, i);
3984 goto nla_put_failure;
3986 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3988 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3989 freq_range->start_freq_khz) ||
3990 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3991 freq_range->end_freq_khz) ||
3992 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3993 freq_range->max_bandwidth_khz) ||
3994 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3995 power_rule->max_antenna_gain) ||
3996 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3997 power_rule->max_eirp))
3998 goto nla_put_failure;
4000 nla_nest_end(msg, nl_reg_rule);
4003 nla_nest_end(msg, nl_reg_rules);
4005 genlmsg_end(msg, hdr);
4006 err = genlmsg_reply(msg, info);
4010 genlmsg_cancel(msg, hdr);
4015 mutex_unlock(&cfg80211_mutex);
4019 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4021 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4022 struct nlattr *nl_reg_rule;
4023 char *alpha2 = NULL;
4024 int rem_reg_rules = 0, r = 0;
4025 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4027 struct ieee80211_regdomain *rd = NULL;
4029 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4032 if (!info->attrs[NL80211_ATTR_REG_RULES])
4035 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4037 if (info->attrs[NL80211_ATTR_DFS_REGION])
4038 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4040 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4043 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4047 mutex_lock(&cfg80211_mutex);
4049 if (!reg_is_valid_request(alpha2)) {
4054 size_of_regd = sizeof(struct ieee80211_regdomain) +
4055 (num_rules * sizeof(struct ieee80211_reg_rule));
4057 rd = kzalloc(size_of_regd, GFP_KERNEL);
4063 rd->n_reg_rules = num_rules;
4064 rd->alpha2[0] = alpha2[0];
4065 rd->alpha2[1] = alpha2[1];
4068 * Disable DFS master mode if the DFS region was
4069 * not supported or known on this kernel.
4071 if (reg_supported_dfs_region(dfs_region))
4072 rd->dfs_region = dfs_region;
4074 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4076 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4077 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4079 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4085 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4091 BUG_ON(rule_idx != num_rules);
4095 mutex_unlock(&cfg80211_mutex);
4100 mutex_unlock(&cfg80211_mutex);
4105 static int validate_scan_freqs(struct nlattr *freqs)
4107 struct nlattr *attr1, *attr2;
4108 int n_channels = 0, tmp1, tmp2;
4110 nla_for_each_nested(attr1, freqs, tmp1) {
4113 * Some hardware has a limited channel list for
4114 * scanning, and it is pretty much nonsensical
4115 * to scan for a channel twice, so disallow that
4116 * and don't require drivers to check that the
4117 * channel list they get isn't longer than what
4118 * they can scan, as long as they can scan all
4119 * the channels they registered at once.
4121 nla_for_each_nested(attr2, freqs, tmp2)
4122 if (attr1 != attr2 &&
4123 nla_get_u32(attr1) == nla_get_u32(attr2))
4130 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4133 struct net_device *dev = info->user_ptr[1];
4134 struct cfg80211_scan_request *request;
4135 struct nlattr *attr;
4136 struct wiphy *wiphy;
4137 int err, tmp, n_ssids = 0, n_channels, i;
4140 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4143 wiphy = &rdev->wiphy;
4145 if (!rdev->ops->scan)
4151 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4152 n_channels = validate_scan_freqs(
4153 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4157 enum ieee80211_band band;
4160 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4161 if (wiphy->bands[band])
4162 n_channels += wiphy->bands[band]->n_channels;
4165 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4166 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4169 if (n_ssids > wiphy->max_scan_ssids)
4172 if (info->attrs[NL80211_ATTR_IE])
4173 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4177 if (ie_len > wiphy->max_scan_ie_len)
4180 request = kzalloc(sizeof(*request)
4181 + sizeof(*request->ssids) * n_ssids
4182 + sizeof(*request->channels) * n_channels
4183 + ie_len, GFP_KERNEL);
4188 request->ssids = (void *)&request->channels[n_channels];
4189 request->n_ssids = n_ssids;
4192 request->ie = (void *)(request->ssids + n_ssids);
4194 request->ie = (void *)(request->channels + n_channels);
4198 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4199 /* user specified, bail out if channel not found */
4200 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4201 struct ieee80211_channel *chan;
4203 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4210 /* ignore disabled channels */
4211 if (chan->flags & IEEE80211_CHAN_DISABLED)
4214 request->channels[i] = chan;
4218 enum ieee80211_band band;
4221 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4223 if (!wiphy->bands[band])
4225 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4226 struct ieee80211_channel *chan;
4228 chan = &wiphy->bands[band]->channels[j];
4230 if (chan->flags & IEEE80211_CHAN_DISABLED)
4233 request->channels[i] = chan;
4244 request->n_channels = i;
4247 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4248 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4249 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4253 request->ssids[i].ssid_len = nla_len(attr);
4254 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4259 if (info->attrs[NL80211_ATTR_IE]) {
4260 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4261 memcpy((void *)request->ie,
4262 nla_data(info->attrs[NL80211_ATTR_IE]),
4266 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4267 if (wiphy->bands[i])
4269 (1 << wiphy->bands[i]->n_bitrates) - 1;
4271 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4272 nla_for_each_nested(attr,
4273 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4275 enum ieee80211_band band = nla_type(attr);
4277 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4281 err = ieee80211_get_ratemask(wiphy->bands[band],
4284 &request->rates[band]);
4291 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4294 request->wiphy = &rdev->wiphy;
4296 rdev->scan_req = request;
4297 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4300 nl80211_send_scan_start(rdev, dev);
4304 rdev->scan_req = NULL;
4311 static int nl80211_start_sched_scan(struct sk_buff *skb,
4312 struct genl_info *info)
4314 struct cfg80211_sched_scan_request *request;
4315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4316 struct net_device *dev = info->user_ptr[1];
4317 struct nlattr *attr;
4318 struct wiphy *wiphy;
4319 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4321 enum ieee80211_band band;
4323 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4325 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4326 !rdev->ops->sched_scan_start)
4329 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4332 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4335 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4339 wiphy = &rdev->wiphy;
4341 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4342 n_channels = validate_scan_freqs(
4343 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4349 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4350 if (wiphy->bands[band])
4351 n_channels += wiphy->bands[band]->n_channels;
4354 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4355 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4359 if (n_ssids > wiphy->max_sched_scan_ssids)
4362 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4363 nla_for_each_nested(attr,
4364 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4368 if (n_match_sets > wiphy->max_match_sets)
4371 if (info->attrs[NL80211_ATTR_IE])
4372 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4376 if (ie_len > wiphy->max_sched_scan_ie_len)
4379 mutex_lock(&rdev->sched_scan_mtx);
4381 if (rdev->sched_scan_req) {
4386 request = kzalloc(sizeof(*request)
4387 + sizeof(*request->ssids) * n_ssids
4388 + sizeof(*request->match_sets) * n_match_sets
4389 + sizeof(*request->channels) * n_channels
4390 + ie_len, GFP_KERNEL);
4397 request->ssids = (void *)&request->channels[n_channels];
4398 request->n_ssids = n_ssids;
4401 request->ie = (void *)(request->ssids + n_ssids);
4403 request->ie = (void *)(request->channels + n_channels);
4408 request->match_sets = (void *)(request->ie + ie_len);
4409 else if (request->ssids)
4410 request->match_sets =
4411 (void *)(request->ssids + n_ssids);
4413 request->match_sets =
4414 (void *)(request->channels + n_channels);
4416 request->n_match_sets = n_match_sets;
4419 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4420 /* user specified, bail out if channel not found */
4421 nla_for_each_nested(attr,
4422 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4424 struct ieee80211_channel *chan;
4426 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4433 /* ignore disabled channels */
4434 if (chan->flags & IEEE80211_CHAN_DISABLED)
4437 request->channels[i] = chan;
4442 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4444 if (!wiphy->bands[band])
4446 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4447 struct ieee80211_channel *chan;
4449 chan = &wiphy->bands[band]->channels[j];
4451 if (chan->flags & IEEE80211_CHAN_DISABLED)
4454 request->channels[i] = chan;
4465 request->n_channels = i;
4468 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4469 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4471 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4475 request->ssids[i].ssid_len = nla_len(attr);
4476 memcpy(request->ssids[i].ssid, nla_data(attr),
4483 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4484 nla_for_each_nested(attr,
4485 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4487 struct nlattr *ssid, *rssi;
4489 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4490 nla_data(attr), nla_len(attr),
4491 nl80211_match_policy);
4492 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4494 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4498 memcpy(request->match_sets[i].ssid.ssid,
4499 nla_data(ssid), nla_len(ssid));
4500 request->match_sets[i].ssid.ssid_len =
4503 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4505 request->rssi_thold = nla_get_u32(rssi);
4507 request->rssi_thold =
4508 NL80211_SCAN_RSSI_THOLD_OFF;
4513 if (info->attrs[NL80211_ATTR_IE]) {
4514 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4515 memcpy((void *)request->ie,
4516 nla_data(info->attrs[NL80211_ATTR_IE]),
4521 request->wiphy = &rdev->wiphy;
4522 request->interval = interval;
4524 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4526 rdev->sched_scan_req = request;
4527 nl80211_send_sched_scan(rdev, dev,
4528 NL80211_CMD_START_SCHED_SCAN);
4535 mutex_unlock(&rdev->sched_scan_mtx);
4539 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4540 struct genl_info *info)
4542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4545 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4546 !rdev->ops->sched_scan_stop)
4549 mutex_lock(&rdev->sched_scan_mtx);
4550 err = __cfg80211_stop_sched_scan(rdev, false);
4551 mutex_unlock(&rdev->sched_scan_mtx);
4556 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4558 struct cfg80211_registered_device *rdev,
4559 struct wireless_dev *wdev,
4560 struct cfg80211_internal_bss *intbss)
4562 struct cfg80211_bss *res = &intbss->pub;
4566 ASSERT_WDEV_LOCK(wdev);
4568 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4569 NL80211_CMD_NEW_SCAN_RESULTS);
4573 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4575 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4576 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4577 goto nla_put_failure;
4579 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4581 goto nla_put_failure;
4582 if ((!is_zero_ether_addr(res->bssid) &&
4583 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4584 (res->information_elements && res->len_information_elements &&
4585 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4586 res->len_information_elements,
4587 res->information_elements)) ||
4588 (res->beacon_ies && res->len_beacon_ies &&
4589 res->beacon_ies != res->information_elements &&
4590 nla_put(msg, NL80211_BSS_BEACON_IES,
4591 res->len_beacon_ies, res->beacon_ies)))
4592 goto nla_put_failure;
4594 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4595 goto nla_put_failure;
4596 if (res->beacon_interval &&
4597 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4598 goto nla_put_failure;
4599 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4600 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4601 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4602 jiffies_to_msecs(jiffies - intbss->ts)))
4603 goto nla_put_failure;
4605 switch (rdev->wiphy.signal_type) {
4606 case CFG80211_SIGNAL_TYPE_MBM:
4607 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4608 goto nla_put_failure;
4610 case CFG80211_SIGNAL_TYPE_UNSPEC:
4611 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4612 goto nla_put_failure;
4618 switch (wdev->iftype) {
4619 case NL80211_IFTYPE_P2P_CLIENT:
4620 case NL80211_IFTYPE_STATION:
4621 if (intbss == wdev->current_bss &&
4622 nla_put_u32(msg, NL80211_BSS_STATUS,
4623 NL80211_BSS_STATUS_ASSOCIATED))
4624 goto nla_put_failure;
4626 case NL80211_IFTYPE_ADHOC:
4627 if (intbss == wdev->current_bss &&
4628 nla_put_u32(msg, NL80211_BSS_STATUS,
4629 NL80211_BSS_STATUS_IBSS_JOINED))
4630 goto nla_put_failure;
4636 nla_nest_end(msg, bss);
4638 return genlmsg_end(msg, hdr);
4641 genlmsg_cancel(msg, hdr);
4645 static int nl80211_dump_scan(struct sk_buff *skb,
4646 struct netlink_callback *cb)
4648 struct cfg80211_registered_device *rdev;
4649 struct net_device *dev;
4650 struct cfg80211_internal_bss *scan;
4651 struct wireless_dev *wdev;
4652 int start = cb->args[1], idx = 0;
4655 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4659 wdev = dev->ieee80211_ptr;
4662 spin_lock_bh(&rdev->bss_lock);
4663 cfg80211_bss_expire(rdev);
4665 cb->seq = rdev->bss_generation;
4667 list_for_each_entry(scan, &rdev->bss_list, list) {
4670 if (nl80211_send_bss(skb, cb,
4671 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4672 rdev, wdev, scan) < 0) {
4678 spin_unlock_bh(&rdev->bss_lock);
4682 nl80211_finish_netdev_dump(rdev);
4687 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4688 int flags, struct net_device *dev,
4689 struct survey_info *survey)
4692 struct nlattr *infoattr;
4694 hdr = nl80211hdr_put(msg, pid, seq, flags,
4695 NL80211_CMD_NEW_SURVEY_RESULTS);
4699 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4700 goto nla_put_failure;
4702 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4704 goto nla_put_failure;
4706 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4707 survey->channel->center_freq))
4708 goto nla_put_failure;
4710 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4711 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4712 goto nla_put_failure;
4713 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4714 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4715 goto nla_put_failure;
4716 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4717 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4718 survey->channel_time))
4719 goto nla_put_failure;
4720 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4721 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4722 survey->channel_time_busy))
4723 goto nla_put_failure;
4724 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4725 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4726 survey->channel_time_ext_busy))
4727 goto nla_put_failure;
4728 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4729 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4730 survey->channel_time_rx))
4731 goto nla_put_failure;
4732 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4733 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4734 survey->channel_time_tx))
4735 goto nla_put_failure;
4737 nla_nest_end(msg, infoattr);
4739 return genlmsg_end(msg, hdr);
4742 genlmsg_cancel(msg, hdr);
4746 static int nl80211_dump_survey(struct sk_buff *skb,
4747 struct netlink_callback *cb)
4749 struct survey_info survey;
4750 struct cfg80211_registered_device *dev;
4751 struct net_device *netdev;
4752 int survey_idx = cb->args[1];
4755 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4759 if (!dev->ops->dump_survey) {
4765 struct ieee80211_channel *chan;
4767 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4774 /* Survey without a channel doesn't make sense */
4775 if (!survey.channel) {
4780 chan = ieee80211_get_channel(&dev->wiphy,
4781 survey.channel->center_freq);
4782 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4787 if (nl80211_send_survey(skb,
4788 NETLINK_CB(cb->skb).pid,
4789 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4797 cb->args[1] = survey_idx;
4800 nl80211_finish_netdev_dump(dev);
4804 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4806 return auth_type <= NL80211_AUTHTYPE_MAX;
4809 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4811 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4812 NL80211_WPA_VERSION_2));
4815 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4817 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4818 struct net_device *dev = info->user_ptr[1];
4819 struct ieee80211_channel *chan;
4820 const u8 *bssid, *ssid, *ie = NULL;
4821 int err, ssid_len, ie_len = 0;
4822 enum nl80211_auth_type auth_type;
4823 struct key_parse key;
4824 bool local_state_change;
4826 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4829 if (!info->attrs[NL80211_ATTR_MAC])
4832 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4835 if (!info->attrs[NL80211_ATTR_SSID])
4838 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4841 err = nl80211_parse_key(info, &key);
4846 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4848 if (!key.p.key || !key.p.key_len)
4850 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4851 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4852 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4853 key.p.key_len != WLAN_KEY_LEN_WEP104))
4865 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4866 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4875 if (!rdev->ops->auth)
4878 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4879 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4882 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4883 chan = ieee80211_get_channel(&rdev->wiphy,
4884 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4885 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4888 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4889 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4891 if (info->attrs[NL80211_ATTR_IE]) {
4892 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4893 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4896 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4897 if (!nl80211_valid_auth_type(auth_type))
4900 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4903 * Since we no longer track auth state, ignore
4904 * requests to only change local state.
4906 if (local_state_change)
4909 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4910 ssid, ssid_len, ie, ie_len,
4911 key.p.key, key.p.key_len, key.idx);
4914 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4915 struct genl_info *info,
4916 struct cfg80211_crypto_settings *settings,
4919 memset(settings, 0, sizeof(*settings));
4921 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4923 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4925 proto = nla_get_u16(
4926 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4927 settings->control_port_ethertype = cpu_to_be16(proto);
4928 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4931 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4932 settings->control_port_no_encrypt = true;
4934 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4936 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4940 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4941 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4942 settings->n_ciphers_pairwise = len / sizeof(u32);
4944 if (len % sizeof(u32))
4947 if (settings->n_ciphers_pairwise > cipher_limit)
4950 memcpy(settings->ciphers_pairwise, data, len);
4952 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4953 if (!cfg80211_supported_cipher_suite(
4955 settings->ciphers_pairwise[i]))
4959 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4960 settings->cipher_group =
4961 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4962 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4963 settings->cipher_group))
4967 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4968 settings->wpa_versions =
4969 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4970 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4974 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4978 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4979 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4980 settings->n_akm_suites = len / sizeof(u32);
4982 if (len % sizeof(u32))
4985 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4988 memcpy(settings->akm_suites, data, len);
4994 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4997 struct net_device *dev = info->user_ptr[1];
4998 struct cfg80211_crypto_settings crypto;
4999 struct ieee80211_channel *chan;
5000 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5001 int err, ssid_len, ie_len = 0;
5002 bool use_mfp = false;
5004 struct ieee80211_ht_cap *ht_capa = NULL;
5005 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5007 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5010 if (!info->attrs[NL80211_ATTR_MAC] ||
5011 !info->attrs[NL80211_ATTR_SSID] ||
5012 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5015 if (!rdev->ops->assoc)
5018 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5019 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5022 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5024 chan = ieee80211_get_channel(&rdev->wiphy,
5025 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5026 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5029 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5030 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5032 if (info->attrs[NL80211_ATTR_IE]) {
5033 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5034 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5037 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5038 enum nl80211_mfp mfp =
5039 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5040 if (mfp == NL80211_MFP_REQUIRED)
5042 else if (mfp != NL80211_MFP_NO)
5046 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5047 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5049 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5050 flags |= ASSOC_REQ_DISABLE_HT;
5052 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5054 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5056 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5059 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5062 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5064 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5065 ssid, ssid_len, ie, ie_len, use_mfp,
5066 &crypto, flags, ht_capa,
5072 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5074 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5075 struct net_device *dev = info->user_ptr[1];
5076 const u8 *ie = NULL, *bssid;
5079 bool local_state_change;
5081 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5084 if (!info->attrs[NL80211_ATTR_MAC])
5087 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5090 if (!rdev->ops->deauth)
5093 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5094 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5097 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5099 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5100 if (reason_code == 0) {
5101 /* Reason Code 0 is reserved */
5105 if (info->attrs[NL80211_ATTR_IE]) {
5106 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5107 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5110 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5112 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5113 local_state_change);
5116 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5118 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5119 struct net_device *dev = info->user_ptr[1];
5120 const u8 *ie = NULL, *bssid;
5123 bool local_state_change;
5125 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5128 if (!info->attrs[NL80211_ATTR_MAC])
5131 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5134 if (!rdev->ops->disassoc)
5137 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5138 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5141 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5143 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5144 if (reason_code == 0) {
5145 /* Reason Code 0 is reserved */
5149 if (info->attrs[NL80211_ATTR_IE]) {
5150 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5151 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5154 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5156 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5157 local_state_change);
5161 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5162 int mcast_rate[IEEE80211_NUM_BANDS],
5165 struct wiphy *wiphy = &rdev->wiphy;
5169 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5170 struct ieee80211_supported_band *sband;
5172 sband = wiphy->bands[band];
5176 for (i = 0; i < sband->n_bitrates; i++) {
5177 if (sband->bitrates[i].bitrate == rateval) {
5178 mcast_rate[band] = i + 1;
5188 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5191 struct net_device *dev = info->user_ptr[1];
5192 struct cfg80211_ibss_params ibss;
5193 struct wiphy *wiphy;
5194 struct cfg80211_cached_keys *connkeys = NULL;
5197 memset(&ibss, 0, sizeof(ibss));
5199 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5202 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5203 !info->attrs[NL80211_ATTR_SSID] ||
5204 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5207 ibss.beacon_interval = 100;
5209 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5210 ibss.beacon_interval =
5211 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5212 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5216 if (!rdev->ops->join_ibss)
5219 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5222 wiphy = &rdev->wiphy;
5224 if (info->attrs[NL80211_ATTR_MAC]) {
5225 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5227 if (!is_valid_ether_addr(ibss.bssid))
5230 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5231 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5233 if (info->attrs[NL80211_ATTR_IE]) {
5234 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5235 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5238 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5239 enum nl80211_channel_type channel_type;
5241 if (!nl80211_valid_channel_type(info, &channel_type))
5244 if (channel_type != NL80211_CHAN_NO_HT &&
5245 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5248 ibss.channel_type = channel_type;
5250 ibss.channel_type = NL80211_CHAN_NO_HT;
5253 ibss.channel = rdev_freq_to_chan(rdev,
5254 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5256 if (!ibss.channel ||
5257 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5258 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5261 /* Both channels should be able to initiate communication */
5262 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5263 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5264 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5268 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5269 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5271 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5273 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5275 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5276 struct ieee80211_supported_band *sband =
5277 wiphy->bands[ibss.channel->band];
5279 err = ieee80211_get_ratemask(sband, rates, n_rates,
5285 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5286 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5287 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5290 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5291 connkeys = nl80211_parse_connkeys(rdev,
5292 info->attrs[NL80211_ATTR_KEYS]);
5293 if (IS_ERR(connkeys))
5294 return PTR_ERR(connkeys);
5298 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5300 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5306 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5308 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5309 struct net_device *dev = info->user_ptr[1];
5311 if (!rdev->ops->leave_ibss)
5314 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5317 return cfg80211_leave_ibss(rdev, dev, false);
5320 #ifdef CONFIG_NL80211_TESTMODE
5321 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5325 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5330 if (!info->attrs[NL80211_ATTR_TESTDATA])
5334 if (rdev->ops->testmode_cmd) {
5335 rdev->testmode_info = info;
5336 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5337 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5338 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5339 rdev->testmode_info = NULL;
5345 static int nl80211_testmode_dump(struct sk_buff *skb,
5346 struct netlink_callback *cb)
5348 struct cfg80211_registered_device *rdev;
5356 * 0 is a valid index, but not valid for args[0],
5357 * so we need to offset by 1.
5359 phy_idx = cb->args[0] - 1;
5361 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5362 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5367 mutex_lock(&cfg80211_mutex);
5368 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5369 nl80211_fam.attrbuf);
5371 mutex_unlock(&cfg80211_mutex);
5372 return PTR_ERR(rdev);
5374 phy_idx = rdev->wiphy_idx;
5376 mutex_unlock(&cfg80211_mutex);
5378 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5380 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5384 data = nla_data((void *)cb->args[1]);
5385 data_len = nla_len((void *)cb->args[1]);
5388 mutex_lock(&cfg80211_mutex);
5389 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5391 mutex_unlock(&cfg80211_mutex);
5394 cfg80211_lock_rdev(rdev);
5395 mutex_unlock(&cfg80211_mutex);
5397 if (!rdev->ops->testmode_dump) {
5403 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5404 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5405 NL80211_CMD_TESTMODE);
5406 struct nlattr *tmdata;
5408 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5409 genlmsg_cancel(skb, hdr);
5413 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5415 genlmsg_cancel(skb, hdr);
5418 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5420 nla_nest_end(skb, tmdata);
5422 if (err == -ENOBUFS || err == -ENOENT) {
5423 genlmsg_cancel(skb, hdr);
5426 genlmsg_cancel(skb, hdr);
5430 genlmsg_end(skb, hdr);
5435 cb->args[0] = phy_idx + 1;
5437 cfg80211_unlock_rdev(rdev);
5441 static struct sk_buff *
5442 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5443 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5445 struct sk_buff *skb;
5447 struct nlattr *data;
5449 skb = nlmsg_new(approxlen + 100, gfp);
5453 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5459 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5460 goto nla_put_failure;
5461 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5463 ((void **)skb->cb)[0] = rdev;
5464 ((void **)skb->cb)[1] = hdr;
5465 ((void **)skb->cb)[2] = data;
5474 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5477 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5479 if (WARN_ON(!rdev->testmode_info))
5482 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5483 rdev->testmode_info->snd_pid,
5484 rdev->testmode_info->snd_seq,
5487 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5489 int cfg80211_testmode_reply(struct sk_buff *skb)
5491 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5492 void *hdr = ((void **)skb->cb)[1];
5493 struct nlattr *data = ((void **)skb->cb)[2];
5495 if (WARN_ON(!rdev->testmode_info)) {
5500 nla_nest_end(skb, data);
5501 genlmsg_end(skb, hdr);
5502 return genlmsg_reply(skb, rdev->testmode_info);
5504 EXPORT_SYMBOL(cfg80211_testmode_reply);
5506 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5507 int approxlen, gfp_t gfp)
5509 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5511 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5513 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5515 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5517 void *hdr = ((void **)skb->cb)[1];
5518 struct nlattr *data = ((void **)skb->cb)[2];
5520 nla_nest_end(skb, data);
5521 genlmsg_end(skb, hdr);
5522 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5524 EXPORT_SYMBOL(cfg80211_testmode_event);
5527 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5529 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5530 struct net_device *dev = info->user_ptr[1];
5531 struct cfg80211_connect_params connect;
5532 struct wiphy *wiphy;
5533 struct cfg80211_cached_keys *connkeys = NULL;
5536 memset(&connect, 0, sizeof(connect));
5538 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5541 if (!info->attrs[NL80211_ATTR_SSID] ||
5542 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5545 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5547 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5548 if (!nl80211_valid_auth_type(connect.auth_type))
5551 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5553 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5555 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5556 NL80211_MAX_NR_CIPHER_SUITES);
5560 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5561 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5564 wiphy = &rdev->wiphy;
5566 connect.bg_scan_period = -1;
5567 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5568 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5569 connect.bg_scan_period =
5570 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5573 if (info->attrs[NL80211_ATTR_MAC])
5574 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5575 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5576 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5578 if (info->attrs[NL80211_ATTR_IE]) {
5579 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5580 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5583 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5585 ieee80211_get_channel(wiphy,
5586 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5587 if (!connect.channel ||
5588 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5592 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5593 connkeys = nl80211_parse_connkeys(rdev,
5594 info->attrs[NL80211_ATTR_KEYS]);
5595 if (IS_ERR(connkeys))
5596 return PTR_ERR(connkeys);
5599 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5600 connect.flags |= ASSOC_REQ_DISABLE_HT;
5602 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5603 memcpy(&connect.ht_capa_mask,
5604 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5605 sizeof(connect.ht_capa_mask));
5607 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5608 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5610 memcpy(&connect.ht_capa,
5611 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5612 sizeof(connect.ht_capa));
5615 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5621 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5624 struct net_device *dev = info->user_ptr[1];
5627 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5628 reason = WLAN_REASON_DEAUTH_LEAVING;
5630 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5635 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5636 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5639 return cfg80211_disconnect(rdev, dev, reason, true);
5642 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5644 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5649 if (!info->attrs[NL80211_ATTR_PID])
5652 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5654 net = get_net_ns_by_pid(pid);
5656 return PTR_ERR(net);
5660 /* check if anything to do */
5661 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5662 err = cfg80211_switch_netns(rdev, net);
5668 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5670 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5671 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5672 struct cfg80211_pmksa *pmksa) = NULL;
5673 struct net_device *dev = info->user_ptr[1];
5674 struct cfg80211_pmksa pmksa;
5676 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5678 if (!info->attrs[NL80211_ATTR_MAC])
5681 if (!info->attrs[NL80211_ATTR_PMKID])
5684 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5685 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5687 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5688 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5691 switch (info->genlhdr->cmd) {
5692 case NL80211_CMD_SET_PMKSA:
5693 rdev_ops = rdev->ops->set_pmksa;
5695 case NL80211_CMD_DEL_PMKSA:
5696 rdev_ops = rdev->ops->del_pmksa;
5706 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5709 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5711 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5712 struct net_device *dev = info->user_ptr[1];
5714 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5715 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5718 if (!rdev->ops->flush_pmksa)
5721 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5724 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5727 struct net_device *dev = info->user_ptr[1];
5728 u8 action_code, dialog_token;
5732 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5733 !rdev->ops->tdls_mgmt)
5736 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5737 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5738 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5739 !info->attrs[NL80211_ATTR_IE] ||
5740 !info->attrs[NL80211_ATTR_MAC])
5743 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5744 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5745 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5746 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5748 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5749 dialog_token, status_code,
5750 nla_data(info->attrs[NL80211_ATTR_IE]),
5751 nla_len(info->attrs[NL80211_ATTR_IE]));
5754 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5757 struct net_device *dev = info->user_ptr[1];
5758 enum nl80211_tdls_operation operation;
5761 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5762 !rdev->ops->tdls_oper)
5765 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5766 !info->attrs[NL80211_ATTR_MAC])
5769 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5770 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5772 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5775 static int nl80211_remain_on_channel(struct sk_buff *skb,
5776 struct genl_info *info)
5778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5779 struct wireless_dev *wdev = info->user_ptr[1];
5780 struct ieee80211_channel *chan;
5781 struct sk_buff *msg;
5784 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5788 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5789 !info->attrs[NL80211_ATTR_DURATION])
5792 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5794 if (!rdev->ops->remain_on_channel ||
5795 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5799 * We should be on that channel for at least a minimum amount of
5800 * time (10ms) but no longer than the driver supports.
5802 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5803 duration > rdev->wiphy.max_remain_on_channel_duration)
5806 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5807 !nl80211_valid_channel_type(info, &channel_type))
5810 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5811 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5815 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5819 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5820 NL80211_CMD_REMAIN_ON_CHANNEL);
5827 err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
5828 channel_type, duration, &cookie);
5833 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5834 goto nla_put_failure;
5836 genlmsg_end(msg, hdr);
5838 return genlmsg_reply(msg, info);
5847 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5848 struct genl_info *info)
5850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5851 struct wireless_dev *wdev = info->user_ptr[1];
5854 if (!info->attrs[NL80211_ATTR_COOKIE])
5857 if (!rdev->ops->cancel_remain_on_channel)
5860 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5862 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
5865 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5866 u8 *rates, u8 rates_len)
5871 for (i = 0; i < rates_len; i++) {
5872 int rate = (rates[i] & 0x7f) * 5;
5874 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5875 struct ieee80211_rate *srate =
5876 &sband->bitrates[ridx];
5877 if (rate == srate->bitrate) {
5882 if (ridx == sband->n_bitrates)
5883 return 0; /* rate not found */
5889 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5890 u8 *rates, u8 rates_len,
5891 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5895 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5897 for (i = 0; i < rates_len; i++) {
5900 ridx = rates[i] / 8;
5901 rbit = BIT(rates[i] % 8);
5903 /* check validity */
5904 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5907 /* check availability */
5908 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5917 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5918 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5919 .len = NL80211_MAX_SUPP_RATES },
5920 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5921 .len = NL80211_MAX_SUPP_HT_RATES },
5924 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5925 struct genl_info *info)
5927 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5928 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5929 struct cfg80211_bitrate_mask mask;
5931 struct net_device *dev = info->user_ptr[1];
5932 struct nlattr *tx_rates;
5933 struct ieee80211_supported_band *sband;
5935 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5938 if (!rdev->ops->set_bitrate_mask)
5941 memset(&mask, 0, sizeof(mask));
5942 /* Default to all rates enabled */
5943 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5944 sband = rdev->wiphy.bands[i];
5945 mask.control[i].legacy =
5946 sband ? (1 << sband->n_bitrates) - 1 : 0;
5948 memcpy(mask.control[i].mcs,
5949 sband->ht_cap.mcs.rx_mask,
5950 sizeof(mask.control[i].mcs));
5952 memset(mask.control[i].mcs, 0,
5953 sizeof(mask.control[i].mcs));
5957 * The nested attribute uses enum nl80211_band as the index. This maps
5958 * directly to the enum ieee80211_band values used in cfg80211.
5960 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5961 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5963 enum ieee80211_band band = nla_type(tx_rates);
5964 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5966 sband = rdev->wiphy.bands[band];
5969 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5970 nla_len(tx_rates), nl80211_txattr_policy);
5971 if (tb[NL80211_TXRATE_LEGACY]) {
5972 mask.control[band].legacy = rateset_to_mask(
5974 nla_data(tb[NL80211_TXRATE_LEGACY]),
5975 nla_len(tb[NL80211_TXRATE_LEGACY]));
5976 if ((mask.control[band].legacy == 0) &&
5977 nla_len(tb[NL80211_TXRATE_LEGACY]))
5980 if (tb[NL80211_TXRATE_MCS]) {
5981 if (!ht_rateset_to_mask(
5983 nla_data(tb[NL80211_TXRATE_MCS]),
5984 nla_len(tb[NL80211_TXRATE_MCS]),
5985 mask.control[band].mcs))
5989 if (mask.control[band].legacy == 0) {
5990 /* don't allow empty legacy rates if HT
5991 * is not even supported. */
5992 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5995 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5996 if (mask.control[band].mcs[i])
5999 /* legacy and mcs rates may not be both empty */
6000 if (i == IEEE80211_HT_MCS_MASK_LEN)
6005 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
6008 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6011 struct wireless_dev *wdev = info->user_ptr[1];
6012 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6014 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6017 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6018 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6020 switch (wdev->iftype) {
6021 case NL80211_IFTYPE_STATION:
6022 case NL80211_IFTYPE_ADHOC:
6023 case NL80211_IFTYPE_P2P_CLIENT:
6024 case NL80211_IFTYPE_AP:
6025 case NL80211_IFTYPE_AP_VLAN:
6026 case NL80211_IFTYPE_MESH_POINT:
6027 case NL80211_IFTYPE_P2P_GO:
6033 /* not much point in registering if we can't reply */
6034 if (!rdev->ops->mgmt_tx)
6037 return cfg80211_mlme_register_mgmt(wdev, info->snd_pid, frame_type,
6038 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6039 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6042 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6044 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6045 struct wireless_dev *wdev = info->user_ptr[1];
6046 struct ieee80211_channel *chan;
6047 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6048 bool channel_type_valid = false;
6053 struct sk_buff *msg = NULL;
6054 unsigned int wait = 0;
6055 bool offchan, no_cck, dont_wait_for_ack;
6057 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6059 if (!info->attrs[NL80211_ATTR_FRAME] ||
6060 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6063 if (!rdev->ops->mgmt_tx)
6066 switch (wdev->iftype) {
6067 case NL80211_IFTYPE_STATION:
6068 case NL80211_IFTYPE_ADHOC:
6069 case NL80211_IFTYPE_P2P_CLIENT:
6070 case NL80211_IFTYPE_AP:
6071 case NL80211_IFTYPE_AP_VLAN:
6072 case NL80211_IFTYPE_MESH_POINT:
6073 case NL80211_IFTYPE_P2P_GO:
6079 if (info->attrs[NL80211_ATTR_DURATION]) {
6080 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6082 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6085 * We should wait on the channel for at least a minimum amount
6086 * of time (10ms) but no longer than the driver supports.
6088 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6089 wait > rdev->wiphy.max_remain_on_channel_duration)
6094 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6095 if (!nl80211_valid_channel_type(info, &channel_type))
6097 channel_type_valid = true;
6100 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6102 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6105 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6107 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6108 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6112 if (!dont_wait_for_ack) {
6113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6117 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6126 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
6127 channel_type_valid, wait,
6128 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6129 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6130 no_cck, dont_wait_for_ack, &cookie);
6135 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6136 goto nla_put_failure;
6138 genlmsg_end(msg, hdr);
6139 return genlmsg_reply(msg, info);
6151 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6154 struct wireless_dev *wdev = info->user_ptr[1];
6157 if (!info->attrs[NL80211_ATTR_COOKIE])
6160 if (!rdev->ops->mgmt_tx_cancel_wait)
6163 switch (wdev->iftype) {
6164 case NL80211_IFTYPE_STATION:
6165 case NL80211_IFTYPE_ADHOC:
6166 case NL80211_IFTYPE_P2P_CLIENT:
6167 case NL80211_IFTYPE_AP:
6168 case NL80211_IFTYPE_AP_VLAN:
6169 case NL80211_IFTYPE_P2P_GO:
6175 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6177 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
6180 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6183 struct wireless_dev *wdev;
6184 struct net_device *dev = info->user_ptr[1];
6189 if (!info->attrs[NL80211_ATTR_PS_STATE])
6192 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6194 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6197 wdev = dev->ieee80211_ptr;
6199 if (!rdev->ops->set_power_mgmt)
6202 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6204 if (state == wdev->ps)
6207 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6214 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6216 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6217 enum nl80211_ps_state ps_state;
6218 struct wireless_dev *wdev;
6219 struct net_device *dev = info->user_ptr[1];
6220 struct sk_buff *msg;
6224 wdev = dev->ieee80211_ptr;
6226 if (!rdev->ops->set_power_mgmt)
6229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6233 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6234 NL80211_CMD_GET_POWER_SAVE);
6241 ps_state = NL80211_PS_ENABLED;
6243 ps_state = NL80211_PS_DISABLED;
6245 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6246 goto nla_put_failure;
6248 genlmsg_end(msg, hdr);
6249 return genlmsg_reply(msg, info);
6258 static struct nla_policy
6259 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6260 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6261 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6262 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6265 static int nl80211_set_cqm_rssi(struct genl_info *info,
6266 s32 threshold, u32 hysteresis)
6268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6269 struct wireless_dev *wdev;
6270 struct net_device *dev = info->user_ptr[1];
6275 wdev = dev->ieee80211_ptr;
6277 if (!rdev->ops->set_cqm_rssi_config)
6280 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6281 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6284 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6285 threshold, hysteresis);
6288 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6290 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6294 cqm = info->attrs[NL80211_ATTR_CQM];
6300 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6301 nl80211_attr_cqm_policy);
6305 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6306 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6309 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6310 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6311 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6319 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6322 struct net_device *dev = info->user_ptr[1];
6323 struct mesh_config cfg;
6324 struct mesh_setup setup;
6327 /* start with default */
6328 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6329 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6331 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6332 /* and parse parameters if given */
6333 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6338 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6339 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6342 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6343 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6345 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6346 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6347 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6350 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6351 /* parse additional setup parameters if given */
6352 err = nl80211_parse_mesh_setup(info, &setup);
6357 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6358 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6360 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6361 !nl80211_valid_channel_type(info, &channel_type))
6364 setup.channel = rdev_freq_to_chan(rdev,
6365 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6369 setup.channel_type = channel_type;
6371 /* cfg80211_join_mesh() will sort it out */
6372 setup.channel = NULL;
6375 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6378 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6381 struct net_device *dev = info->user_ptr[1];
6383 return cfg80211_leave_mesh(rdev, dev);
6387 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6390 struct sk_buff *msg;
6393 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6400 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6401 NL80211_CMD_GET_WOWLAN);
6403 goto nla_put_failure;
6406 struct nlattr *nl_wowlan;
6408 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6410 goto nla_put_failure;
6412 if ((rdev->wowlan->any &&
6413 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6414 (rdev->wowlan->disconnect &&
6415 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6416 (rdev->wowlan->magic_pkt &&
6417 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6418 (rdev->wowlan->gtk_rekey_failure &&
6419 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6420 (rdev->wowlan->eap_identity_req &&
6421 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6422 (rdev->wowlan->four_way_handshake &&
6423 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6424 (rdev->wowlan->rfkill_release &&
6425 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6426 goto nla_put_failure;
6427 if (rdev->wowlan->n_patterns) {
6428 struct nlattr *nl_pats, *nl_pat;
6431 nl_pats = nla_nest_start(msg,
6432 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6434 goto nla_put_failure;
6436 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6437 nl_pat = nla_nest_start(msg, i + 1);
6439 goto nla_put_failure;
6440 pat_len = rdev->wowlan->patterns[i].pattern_len;
6441 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6442 DIV_ROUND_UP(pat_len, 8),
6443 rdev->wowlan->patterns[i].mask) ||
6444 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6446 rdev->wowlan->patterns[i].pattern))
6447 goto nla_put_failure;
6448 nla_nest_end(msg, nl_pat);
6450 nla_nest_end(msg, nl_pats);
6453 nla_nest_end(msg, nl_wowlan);
6456 genlmsg_end(msg, hdr);
6457 return genlmsg_reply(msg, info);
6464 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6466 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6467 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6468 struct cfg80211_wowlan no_triggers = {};
6469 struct cfg80211_wowlan new_triggers = {};
6470 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6472 bool prev_enabled = rdev->wowlan;
6474 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6477 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6480 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6481 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6482 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6483 nl80211_wowlan_policy);
6487 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6488 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6490 new_triggers.any = true;
6493 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6494 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6496 new_triggers.disconnect = true;
6499 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6500 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6502 new_triggers.magic_pkt = true;
6505 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6508 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6509 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6511 new_triggers.gtk_rekey_failure = true;
6514 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6515 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6517 new_triggers.eap_identity_req = true;
6520 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6521 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6523 new_triggers.four_way_handshake = true;
6526 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6527 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6529 new_triggers.rfkill_release = true;
6532 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6535 int rem, pat_len, mask_len;
6536 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6538 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6541 if (n_patterns > wowlan->n_patterns)
6544 new_triggers.patterns = kcalloc(n_patterns,
6545 sizeof(new_triggers.patterns[0]),
6547 if (!new_triggers.patterns)
6550 new_triggers.n_patterns = n_patterns;
6553 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6555 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6556 nla_data(pat), nla_len(pat), NULL);
6558 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6559 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6561 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6562 mask_len = DIV_ROUND_UP(pat_len, 8);
6563 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6566 if (pat_len > wowlan->pattern_max_len ||
6567 pat_len < wowlan->pattern_min_len)
6570 new_triggers.patterns[i].mask =
6571 kmalloc(mask_len + pat_len, GFP_KERNEL);
6572 if (!new_triggers.patterns[i].mask) {
6576 new_triggers.patterns[i].pattern =
6577 new_triggers.patterns[i].mask + mask_len;
6578 memcpy(new_triggers.patterns[i].mask,
6579 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6581 new_triggers.patterns[i].pattern_len = pat_len;
6582 memcpy(new_triggers.patterns[i].pattern,
6583 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6589 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6590 struct cfg80211_wowlan *ntrig;
6591 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6597 cfg80211_rdev_free_wowlan(rdev);
6598 rdev->wowlan = ntrig;
6601 cfg80211_rdev_free_wowlan(rdev);
6602 rdev->wowlan = NULL;
6605 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6606 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6610 for (i = 0; i < new_triggers.n_patterns; i++)
6611 kfree(new_triggers.patterns[i].mask);
6612 kfree(new_triggers.patterns);
6617 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6619 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6620 struct net_device *dev = info->user_ptr[1];
6621 struct wireless_dev *wdev = dev->ieee80211_ptr;
6622 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6623 struct cfg80211_gtk_rekey_data rekey_data;
6626 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6629 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6630 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6631 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6632 nl80211_rekey_policy);
6636 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6638 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6640 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6643 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6645 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6647 memcpy(rekey_data.replay_ctr,
6648 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6649 NL80211_REPLAY_CTR_LEN);
6652 if (!wdev->current_bss) {
6657 if (!rdev->ops->set_rekey_data) {
6662 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6668 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6669 struct genl_info *info)
6671 struct net_device *dev = info->user_ptr[1];
6672 struct wireless_dev *wdev = dev->ieee80211_ptr;
6674 if (wdev->iftype != NL80211_IFTYPE_AP &&
6675 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6678 if (wdev->ap_unexpected_nlpid)
6681 wdev->ap_unexpected_nlpid = info->snd_pid;
6685 static int nl80211_probe_client(struct sk_buff *skb,
6686 struct genl_info *info)
6688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6689 struct net_device *dev = info->user_ptr[1];
6690 struct wireless_dev *wdev = dev->ieee80211_ptr;
6691 struct sk_buff *msg;
6697 if (wdev->iftype != NL80211_IFTYPE_AP &&
6698 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6701 if (!info->attrs[NL80211_ATTR_MAC])
6704 if (!rdev->ops->probe_client)
6707 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6711 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6712 NL80211_CMD_PROBE_CLIENT);
6719 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6721 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6725 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6726 goto nla_put_failure;
6728 genlmsg_end(msg, hdr);
6730 return genlmsg_reply(msg, info);
6739 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6743 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6746 if (rdev->ap_beacons_nlpid)
6749 rdev->ap_beacons_nlpid = info->snd_pid;
6754 #define NL80211_FLAG_NEED_WIPHY 0x01
6755 #define NL80211_FLAG_NEED_NETDEV 0x02
6756 #define NL80211_FLAG_NEED_RTNL 0x04
6757 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6758 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6759 NL80211_FLAG_CHECK_NETDEV_UP)
6760 #define NL80211_FLAG_NEED_WDEV 0x10
6761 /* If a netdev is associated, it must be UP */
6762 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6763 NL80211_FLAG_CHECK_NETDEV_UP)
6765 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6766 struct genl_info *info)
6768 struct cfg80211_registered_device *rdev;
6769 struct wireless_dev *wdev;
6770 struct net_device *dev;
6771 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6776 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6777 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6781 return PTR_ERR(rdev);
6783 info->user_ptr[0] = rdev;
6784 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
6785 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6786 mutex_lock(&cfg80211_mutex);
6787 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6790 mutex_unlock(&cfg80211_mutex);
6793 return PTR_ERR(wdev);
6797 rdev = wiphy_to_dev(wdev->wiphy);
6799 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6801 mutex_unlock(&cfg80211_mutex);
6807 info->user_ptr[1] = dev;
6809 info->user_ptr[1] = wdev;
6813 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6814 !netif_running(dev)) {
6815 mutex_unlock(&cfg80211_mutex);
6824 cfg80211_lock_rdev(rdev);
6826 mutex_unlock(&cfg80211_mutex);
6828 info->user_ptr[0] = rdev;
6834 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6835 struct genl_info *info)
6837 if (info->user_ptr[0])
6838 cfg80211_unlock_rdev(info->user_ptr[0]);
6839 if (info->user_ptr[1]) {
6840 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6841 struct wireless_dev *wdev = info->user_ptr[1];
6844 dev_put(wdev->netdev);
6846 dev_put(info->user_ptr[1]);
6849 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6853 static struct genl_ops nl80211_ops[] = {
6855 .cmd = NL80211_CMD_GET_WIPHY,
6856 .doit = nl80211_get_wiphy,
6857 .dumpit = nl80211_dump_wiphy,
6858 .policy = nl80211_policy,
6859 /* can be retrieved by unprivileged users */
6860 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6863 .cmd = NL80211_CMD_SET_WIPHY,
6864 .doit = nl80211_set_wiphy,
6865 .policy = nl80211_policy,
6866 .flags = GENL_ADMIN_PERM,
6867 .internal_flags = NL80211_FLAG_NEED_RTNL,
6870 .cmd = NL80211_CMD_GET_INTERFACE,
6871 .doit = nl80211_get_interface,
6872 .dumpit = nl80211_dump_interface,
6873 .policy = nl80211_policy,
6874 /* can be retrieved by unprivileged users */
6875 .internal_flags = NL80211_FLAG_NEED_WDEV,
6878 .cmd = NL80211_CMD_SET_INTERFACE,
6879 .doit = nl80211_set_interface,
6880 .policy = nl80211_policy,
6881 .flags = GENL_ADMIN_PERM,
6882 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6883 NL80211_FLAG_NEED_RTNL,
6886 .cmd = NL80211_CMD_NEW_INTERFACE,
6887 .doit = nl80211_new_interface,
6888 .policy = nl80211_policy,
6889 .flags = GENL_ADMIN_PERM,
6890 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6891 NL80211_FLAG_NEED_RTNL,
6894 .cmd = NL80211_CMD_DEL_INTERFACE,
6895 .doit = nl80211_del_interface,
6896 .policy = nl80211_policy,
6897 .flags = GENL_ADMIN_PERM,
6898 .internal_flags = NL80211_FLAG_NEED_WDEV |
6899 NL80211_FLAG_NEED_RTNL,
6902 .cmd = NL80211_CMD_GET_KEY,
6903 .doit = nl80211_get_key,
6904 .policy = nl80211_policy,
6905 .flags = GENL_ADMIN_PERM,
6906 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6907 NL80211_FLAG_NEED_RTNL,
6910 .cmd = NL80211_CMD_SET_KEY,
6911 .doit = nl80211_set_key,
6912 .policy = nl80211_policy,
6913 .flags = GENL_ADMIN_PERM,
6914 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6915 NL80211_FLAG_NEED_RTNL,
6918 .cmd = NL80211_CMD_NEW_KEY,
6919 .doit = nl80211_new_key,
6920 .policy = nl80211_policy,
6921 .flags = GENL_ADMIN_PERM,
6922 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6923 NL80211_FLAG_NEED_RTNL,
6926 .cmd = NL80211_CMD_DEL_KEY,
6927 .doit = nl80211_del_key,
6928 .policy = nl80211_policy,
6929 .flags = GENL_ADMIN_PERM,
6930 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6931 NL80211_FLAG_NEED_RTNL,
6934 .cmd = NL80211_CMD_SET_BEACON,
6935 .policy = nl80211_policy,
6936 .flags = GENL_ADMIN_PERM,
6937 .doit = nl80211_set_beacon,
6938 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6939 NL80211_FLAG_NEED_RTNL,
6942 .cmd = NL80211_CMD_START_AP,
6943 .policy = nl80211_policy,
6944 .flags = GENL_ADMIN_PERM,
6945 .doit = nl80211_start_ap,
6946 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6947 NL80211_FLAG_NEED_RTNL,
6950 .cmd = NL80211_CMD_STOP_AP,
6951 .policy = nl80211_policy,
6952 .flags = GENL_ADMIN_PERM,
6953 .doit = nl80211_stop_ap,
6954 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6955 NL80211_FLAG_NEED_RTNL,
6958 .cmd = NL80211_CMD_GET_STATION,
6959 .doit = nl80211_get_station,
6960 .dumpit = nl80211_dump_station,
6961 .policy = nl80211_policy,
6962 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6963 NL80211_FLAG_NEED_RTNL,
6966 .cmd = NL80211_CMD_SET_STATION,
6967 .doit = nl80211_set_station,
6968 .policy = nl80211_policy,
6969 .flags = GENL_ADMIN_PERM,
6970 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6971 NL80211_FLAG_NEED_RTNL,
6974 .cmd = NL80211_CMD_NEW_STATION,
6975 .doit = nl80211_new_station,
6976 .policy = nl80211_policy,
6977 .flags = GENL_ADMIN_PERM,
6978 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6979 NL80211_FLAG_NEED_RTNL,
6982 .cmd = NL80211_CMD_DEL_STATION,
6983 .doit = nl80211_del_station,
6984 .policy = nl80211_policy,
6985 .flags = GENL_ADMIN_PERM,
6986 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6987 NL80211_FLAG_NEED_RTNL,
6990 .cmd = NL80211_CMD_GET_MPATH,
6991 .doit = nl80211_get_mpath,
6992 .dumpit = nl80211_dump_mpath,
6993 .policy = nl80211_policy,
6994 .flags = GENL_ADMIN_PERM,
6995 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6996 NL80211_FLAG_NEED_RTNL,
6999 .cmd = NL80211_CMD_SET_MPATH,
7000 .doit = nl80211_set_mpath,
7001 .policy = nl80211_policy,
7002 .flags = GENL_ADMIN_PERM,
7003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7004 NL80211_FLAG_NEED_RTNL,
7007 .cmd = NL80211_CMD_NEW_MPATH,
7008 .doit = nl80211_new_mpath,
7009 .policy = nl80211_policy,
7010 .flags = GENL_ADMIN_PERM,
7011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7012 NL80211_FLAG_NEED_RTNL,
7015 .cmd = NL80211_CMD_DEL_MPATH,
7016 .doit = nl80211_del_mpath,
7017 .policy = nl80211_policy,
7018 .flags = GENL_ADMIN_PERM,
7019 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7020 NL80211_FLAG_NEED_RTNL,
7023 .cmd = NL80211_CMD_SET_BSS,
7024 .doit = nl80211_set_bss,
7025 .policy = nl80211_policy,
7026 .flags = GENL_ADMIN_PERM,
7027 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7028 NL80211_FLAG_NEED_RTNL,
7031 .cmd = NL80211_CMD_GET_REG,
7032 .doit = nl80211_get_reg,
7033 .policy = nl80211_policy,
7034 /* can be retrieved by unprivileged users */
7037 .cmd = NL80211_CMD_SET_REG,
7038 .doit = nl80211_set_reg,
7039 .policy = nl80211_policy,
7040 .flags = GENL_ADMIN_PERM,
7043 .cmd = NL80211_CMD_REQ_SET_REG,
7044 .doit = nl80211_req_set_reg,
7045 .policy = nl80211_policy,
7046 .flags = GENL_ADMIN_PERM,
7049 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7050 .doit = nl80211_get_mesh_config,
7051 .policy = nl80211_policy,
7052 /* can be retrieved by unprivileged users */
7053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7054 NL80211_FLAG_NEED_RTNL,
7057 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7058 .doit = nl80211_update_mesh_config,
7059 .policy = nl80211_policy,
7060 .flags = GENL_ADMIN_PERM,
7061 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7062 NL80211_FLAG_NEED_RTNL,
7065 .cmd = NL80211_CMD_TRIGGER_SCAN,
7066 .doit = nl80211_trigger_scan,
7067 .policy = nl80211_policy,
7068 .flags = GENL_ADMIN_PERM,
7069 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7070 NL80211_FLAG_NEED_RTNL,
7073 .cmd = NL80211_CMD_GET_SCAN,
7074 .policy = nl80211_policy,
7075 .dumpit = nl80211_dump_scan,
7078 .cmd = NL80211_CMD_START_SCHED_SCAN,
7079 .doit = nl80211_start_sched_scan,
7080 .policy = nl80211_policy,
7081 .flags = GENL_ADMIN_PERM,
7082 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7083 NL80211_FLAG_NEED_RTNL,
7086 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7087 .doit = nl80211_stop_sched_scan,
7088 .policy = nl80211_policy,
7089 .flags = GENL_ADMIN_PERM,
7090 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7091 NL80211_FLAG_NEED_RTNL,
7094 .cmd = NL80211_CMD_AUTHENTICATE,
7095 .doit = nl80211_authenticate,
7096 .policy = nl80211_policy,
7097 .flags = GENL_ADMIN_PERM,
7098 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7099 NL80211_FLAG_NEED_RTNL,
7102 .cmd = NL80211_CMD_ASSOCIATE,
7103 .doit = nl80211_associate,
7104 .policy = nl80211_policy,
7105 .flags = GENL_ADMIN_PERM,
7106 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7107 NL80211_FLAG_NEED_RTNL,
7110 .cmd = NL80211_CMD_DEAUTHENTICATE,
7111 .doit = nl80211_deauthenticate,
7112 .policy = nl80211_policy,
7113 .flags = GENL_ADMIN_PERM,
7114 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7115 NL80211_FLAG_NEED_RTNL,
7118 .cmd = NL80211_CMD_DISASSOCIATE,
7119 .doit = nl80211_disassociate,
7120 .policy = nl80211_policy,
7121 .flags = GENL_ADMIN_PERM,
7122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7123 NL80211_FLAG_NEED_RTNL,
7126 .cmd = NL80211_CMD_JOIN_IBSS,
7127 .doit = nl80211_join_ibss,
7128 .policy = nl80211_policy,
7129 .flags = GENL_ADMIN_PERM,
7130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7131 NL80211_FLAG_NEED_RTNL,
7134 .cmd = NL80211_CMD_LEAVE_IBSS,
7135 .doit = nl80211_leave_ibss,
7136 .policy = nl80211_policy,
7137 .flags = GENL_ADMIN_PERM,
7138 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7139 NL80211_FLAG_NEED_RTNL,
7141 #ifdef CONFIG_NL80211_TESTMODE
7143 .cmd = NL80211_CMD_TESTMODE,
7144 .doit = nl80211_testmode_do,
7145 .dumpit = nl80211_testmode_dump,
7146 .policy = nl80211_policy,
7147 .flags = GENL_ADMIN_PERM,
7148 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7149 NL80211_FLAG_NEED_RTNL,
7153 .cmd = NL80211_CMD_CONNECT,
7154 .doit = nl80211_connect,
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_DISCONNECT,
7162 .doit = nl80211_disconnect,
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_SET_WIPHY_NETNS,
7170 .doit = nl80211_wiphy_netns,
7171 .policy = nl80211_policy,
7172 .flags = GENL_ADMIN_PERM,
7173 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7174 NL80211_FLAG_NEED_RTNL,
7177 .cmd = NL80211_CMD_GET_SURVEY,
7178 .policy = nl80211_policy,
7179 .dumpit = nl80211_dump_survey,
7182 .cmd = NL80211_CMD_SET_PMKSA,
7183 .doit = nl80211_setdel_pmksa,
7184 .policy = nl80211_policy,
7185 .flags = GENL_ADMIN_PERM,
7186 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7187 NL80211_FLAG_NEED_RTNL,
7190 .cmd = NL80211_CMD_DEL_PMKSA,
7191 .doit = nl80211_setdel_pmksa,
7192 .policy = nl80211_policy,
7193 .flags = GENL_ADMIN_PERM,
7194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7195 NL80211_FLAG_NEED_RTNL,
7198 .cmd = NL80211_CMD_FLUSH_PMKSA,
7199 .doit = nl80211_flush_pmksa,
7200 .policy = nl80211_policy,
7201 .flags = GENL_ADMIN_PERM,
7202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7203 NL80211_FLAG_NEED_RTNL,
7206 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7207 .doit = nl80211_remain_on_channel,
7208 .policy = nl80211_policy,
7209 .flags = GENL_ADMIN_PERM,
7210 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7211 NL80211_FLAG_NEED_RTNL,
7214 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7215 .doit = nl80211_cancel_remain_on_channel,
7216 .policy = nl80211_policy,
7217 .flags = GENL_ADMIN_PERM,
7218 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7219 NL80211_FLAG_NEED_RTNL,
7222 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7223 .doit = nl80211_set_tx_bitrate_mask,
7224 .policy = nl80211_policy,
7225 .flags = GENL_ADMIN_PERM,
7226 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7227 NL80211_FLAG_NEED_RTNL,
7230 .cmd = NL80211_CMD_REGISTER_FRAME,
7231 .doit = nl80211_register_mgmt,
7232 .policy = nl80211_policy,
7233 .flags = GENL_ADMIN_PERM,
7234 .internal_flags = NL80211_FLAG_NEED_WDEV |
7235 NL80211_FLAG_NEED_RTNL,
7238 .cmd = NL80211_CMD_FRAME,
7239 .doit = nl80211_tx_mgmt,
7240 .policy = nl80211_policy,
7241 .flags = GENL_ADMIN_PERM,
7242 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7243 NL80211_FLAG_NEED_RTNL,
7246 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7247 .doit = nl80211_tx_mgmt_cancel_wait,
7248 .policy = nl80211_policy,
7249 .flags = GENL_ADMIN_PERM,
7250 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7251 NL80211_FLAG_NEED_RTNL,
7254 .cmd = NL80211_CMD_SET_POWER_SAVE,
7255 .doit = nl80211_set_power_save,
7256 .policy = nl80211_policy,
7257 .flags = GENL_ADMIN_PERM,
7258 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7259 NL80211_FLAG_NEED_RTNL,
7262 .cmd = NL80211_CMD_GET_POWER_SAVE,
7263 .doit = nl80211_get_power_save,
7264 .policy = nl80211_policy,
7265 /* can be retrieved by unprivileged users */
7266 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7267 NL80211_FLAG_NEED_RTNL,
7270 .cmd = NL80211_CMD_SET_CQM,
7271 .doit = nl80211_set_cqm,
7272 .policy = nl80211_policy,
7273 .flags = GENL_ADMIN_PERM,
7274 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7275 NL80211_FLAG_NEED_RTNL,
7278 .cmd = NL80211_CMD_SET_CHANNEL,
7279 .doit = nl80211_set_channel,
7280 .policy = nl80211_policy,
7281 .flags = GENL_ADMIN_PERM,
7282 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7283 NL80211_FLAG_NEED_RTNL,
7286 .cmd = NL80211_CMD_SET_WDS_PEER,
7287 .doit = nl80211_set_wds_peer,
7288 .policy = nl80211_policy,
7289 .flags = GENL_ADMIN_PERM,
7290 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7291 NL80211_FLAG_NEED_RTNL,
7294 .cmd = NL80211_CMD_JOIN_MESH,
7295 .doit = nl80211_join_mesh,
7296 .policy = nl80211_policy,
7297 .flags = GENL_ADMIN_PERM,
7298 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7299 NL80211_FLAG_NEED_RTNL,
7302 .cmd = NL80211_CMD_LEAVE_MESH,
7303 .doit = nl80211_leave_mesh,
7304 .policy = nl80211_policy,
7305 .flags = GENL_ADMIN_PERM,
7306 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7307 NL80211_FLAG_NEED_RTNL,
7311 .cmd = NL80211_CMD_GET_WOWLAN,
7312 .doit = nl80211_get_wowlan,
7313 .policy = nl80211_policy,
7314 /* can be retrieved by unprivileged users */
7315 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7316 NL80211_FLAG_NEED_RTNL,
7319 .cmd = NL80211_CMD_SET_WOWLAN,
7320 .doit = nl80211_set_wowlan,
7321 .policy = nl80211_policy,
7322 .flags = GENL_ADMIN_PERM,
7323 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7324 NL80211_FLAG_NEED_RTNL,
7328 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7329 .doit = nl80211_set_rekey_data,
7330 .policy = nl80211_policy,
7331 .flags = GENL_ADMIN_PERM,
7332 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7333 NL80211_FLAG_NEED_RTNL,
7336 .cmd = NL80211_CMD_TDLS_MGMT,
7337 .doit = nl80211_tdls_mgmt,
7338 .policy = nl80211_policy,
7339 .flags = GENL_ADMIN_PERM,
7340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7341 NL80211_FLAG_NEED_RTNL,
7344 .cmd = NL80211_CMD_TDLS_OPER,
7345 .doit = nl80211_tdls_oper,
7346 .policy = nl80211_policy,
7347 .flags = GENL_ADMIN_PERM,
7348 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7349 NL80211_FLAG_NEED_RTNL,
7352 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7353 .doit = nl80211_register_unexpected_frame,
7354 .policy = nl80211_policy,
7355 .flags = GENL_ADMIN_PERM,
7356 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7357 NL80211_FLAG_NEED_RTNL,
7360 .cmd = NL80211_CMD_PROBE_CLIENT,
7361 .doit = nl80211_probe_client,
7362 .policy = nl80211_policy,
7363 .flags = GENL_ADMIN_PERM,
7364 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7365 NL80211_FLAG_NEED_RTNL,
7368 .cmd = NL80211_CMD_REGISTER_BEACONS,
7369 .doit = nl80211_register_beacons,
7370 .policy = nl80211_policy,
7371 .flags = GENL_ADMIN_PERM,
7372 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7373 NL80211_FLAG_NEED_RTNL,
7376 .cmd = NL80211_CMD_SET_NOACK_MAP,
7377 .doit = nl80211_set_noack_map,
7378 .policy = nl80211_policy,
7379 .flags = GENL_ADMIN_PERM,
7380 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7381 NL80211_FLAG_NEED_RTNL,
7386 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7390 /* multicast groups */
7391 static struct genl_multicast_group nl80211_config_mcgrp = {
7394 static struct genl_multicast_group nl80211_scan_mcgrp = {
7397 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7398 .name = "regulatory",
7401 /* notification functions */
7403 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7405 struct sk_buff *msg;
7407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7411 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7416 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7417 nl80211_config_mcgrp.id, GFP_KERNEL);
7420 static int nl80211_add_scan_req(struct sk_buff *msg,
7421 struct cfg80211_registered_device *rdev)
7423 struct cfg80211_scan_request *req = rdev->scan_req;
7424 struct nlattr *nest;
7427 ASSERT_RDEV_LOCK(rdev);
7432 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7434 goto nla_put_failure;
7435 for (i = 0; i < req->n_ssids; i++) {
7436 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7437 goto nla_put_failure;
7439 nla_nest_end(msg, nest);
7441 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7443 goto nla_put_failure;
7444 for (i = 0; i < req->n_channels; i++) {
7445 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7446 goto nla_put_failure;
7448 nla_nest_end(msg, nest);
7451 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7452 goto nla_put_failure;
7459 static int nl80211_send_scan_msg(struct sk_buff *msg,
7460 struct cfg80211_registered_device *rdev,
7461 struct net_device *netdev,
7462 u32 pid, u32 seq, int flags,
7467 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7471 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7472 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7473 goto nla_put_failure;
7475 /* ignore errors and send incomplete event anyway */
7476 nl80211_add_scan_req(msg, rdev);
7478 return genlmsg_end(msg, hdr);
7481 genlmsg_cancel(msg, hdr);
7486 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7487 struct cfg80211_registered_device *rdev,
7488 struct net_device *netdev,
7489 u32 pid, u32 seq, int flags, u32 cmd)
7493 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7497 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7498 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7499 goto nla_put_failure;
7501 return genlmsg_end(msg, hdr);
7504 genlmsg_cancel(msg, hdr);
7508 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7509 struct net_device *netdev)
7511 struct sk_buff *msg;
7513 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7517 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7518 NL80211_CMD_TRIGGER_SCAN) < 0) {
7523 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7524 nl80211_scan_mcgrp.id, GFP_KERNEL);
7527 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7528 struct net_device *netdev)
7530 struct sk_buff *msg;
7532 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7536 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7537 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7542 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7543 nl80211_scan_mcgrp.id, GFP_KERNEL);
7546 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7547 struct net_device *netdev)
7549 struct sk_buff *msg;
7551 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7555 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7556 NL80211_CMD_SCAN_ABORTED) < 0) {
7561 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7562 nl80211_scan_mcgrp.id, GFP_KERNEL);
7565 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7566 struct net_device *netdev)
7568 struct sk_buff *msg;
7570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7574 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7575 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7580 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7581 nl80211_scan_mcgrp.id, GFP_KERNEL);
7584 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7585 struct net_device *netdev, u32 cmd)
7587 struct sk_buff *msg;
7589 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7593 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7598 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7599 nl80211_scan_mcgrp.id, GFP_KERNEL);
7603 * This can happen on global regulatory changes or device specific settings
7604 * based on custom world regulatory domains.
7606 void nl80211_send_reg_change_event(struct regulatory_request *request)
7608 struct sk_buff *msg;
7611 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7615 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7621 /* Userspace can always count this one always being set */
7622 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7623 goto nla_put_failure;
7625 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7626 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7627 NL80211_REGDOM_TYPE_WORLD))
7628 goto nla_put_failure;
7629 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7630 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7631 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7632 goto nla_put_failure;
7633 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7634 request->intersect) {
7635 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7636 NL80211_REGDOM_TYPE_INTERSECTION))
7637 goto nla_put_failure;
7639 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7640 NL80211_REGDOM_TYPE_COUNTRY) ||
7641 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7643 goto nla_put_failure;
7646 if (wiphy_idx_valid(request->wiphy_idx) &&
7647 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7648 goto nla_put_failure;
7650 genlmsg_end(msg, hdr);
7653 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7660 genlmsg_cancel(msg, hdr);
7664 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7665 struct net_device *netdev,
7666 const u8 *buf, size_t len,
7667 enum nl80211_commands cmd, gfp_t gfp)
7669 struct sk_buff *msg;
7672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7676 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7682 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7683 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7684 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7685 goto nla_put_failure;
7687 genlmsg_end(msg, hdr);
7689 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7690 nl80211_mlme_mcgrp.id, gfp);
7694 genlmsg_cancel(msg, hdr);
7698 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7699 struct net_device *netdev, const u8 *buf,
7700 size_t len, gfp_t gfp)
7702 nl80211_send_mlme_event(rdev, netdev, buf, len,
7703 NL80211_CMD_AUTHENTICATE, gfp);
7706 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7707 struct net_device *netdev, const u8 *buf,
7708 size_t len, gfp_t gfp)
7710 nl80211_send_mlme_event(rdev, netdev, buf, len,
7711 NL80211_CMD_ASSOCIATE, gfp);
7714 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7715 struct net_device *netdev, const u8 *buf,
7716 size_t len, gfp_t gfp)
7718 nl80211_send_mlme_event(rdev, netdev, buf, len,
7719 NL80211_CMD_DEAUTHENTICATE, gfp);
7722 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7723 struct net_device *netdev, const u8 *buf,
7724 size_t len, gfp_t gfp)
7726 nl80211_send_mlme_event(rdev, netdev, buf, len,
7727 NL80211_CMD_DISASSOCIATE, gfp);
7730 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7731 struct net_device *netdev, const u8 *buf,
7732 size_t len, gfp_t gfp)
7734 nl80211_send_mlme_event(rdev, netdev, buf, len,
7735 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7738 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7739 struct net_device *netdev, const u8 *buf,
7740 size_t len, gfp_t gfp)
7742 nl80211_send_mlme_event(rdev, netdev, buf, len,
7743 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7746 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7747 struct net_device *netdev, int cmd,
7748 const u8 *addr, gfp_t gfp)
7750 struct sk_buff *msg;
7753 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7757 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7764 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7765 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7766 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7767 goto nla_put_failure;
7769 genlmsg_end(msg, hdr);
7771 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7772 nl80211_mlme_mcgrp.id, gfp);
7776 genlmsg_cancel(msg, hdr);
7780 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7781 struct net_device *netdev, const u8 *addr,
7784 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7788 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7789 struct net_device *netdev, const u8 *addr,
7792 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7796 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7797 struct net_device *netdev, const u8 *bssid,
7798 const u8 *req_ie, size_t req_ie_len,
7799 const u8 *resp_ie, size_t resp_ie_len,
7800 u16 status, gfp_t gfp)
7802 struct sk_buff *msg;
7805 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7809 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7815 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7816 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7817 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7818 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7820 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7822 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7823 goto nla_put_failure;
7825 genlmsg_end(msg, hdr);
7827 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7828 nl80211_mlme_mcgrp.id, gfp);
7832 genlmsg_cancel(msg, hdr);
7837 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7838 struct net_device *netdev, const u8 *bssid,
7839 const u8 *req_ie, size_t req_ie_len,
7840 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7842 struct sk_buff *msg;
7845 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7849 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7855 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7856 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7857 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7859 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7861 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7862 goto nla_put_failure;
7864 genlmsg_end(msg, hdr);
7866 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7867 nl80211_mlme_mcgrp.id, gfp);
7871 genlmsg_cancel(msg, hdr);
7876 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7877 struct net_device *netdev, u16 reason,
7878 const u8 *ie, size_t ie_len, bool from_ap)
7880 struct sk_buff *msg;
7883 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7887 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7893 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7894 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7895 (from_ap && reason &&
7896 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7898 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7899 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7900 goto nla_put_failure;
7902 genlmsg_end(msg, hdr);
7904 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7905 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7909 genlmsg_cancel(msg, hdr);
7914 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7915 struct net_device *netdev, const u8 *bssid,
7918 struct sk_buff *msg;
7921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7925 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7931 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7932 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7933 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7934 goto nla_put_failure;
7936 genlmsg_end(msg, hdr);
7938 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7939 nl80211_mlme_mcgrp.id, gfp);
7943 genlmsg_cancel(msg, hdr);
7947 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7948 struct net_device *netdev,
7949 const u8 *macaddr, const u8* ie, u8 ie_len,
7952 struct sk_buff *msg;
7955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7959 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7965 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7966 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7967 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7969 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7970 goto nla_put_failure;
7972 genlmsg_end(msg, hdr);
7974 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7975 nl80211_mlme_mcgrp.id, gfp);
7979 genlmsg_cancel(msg, hdr);
7983 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7984 struct net_device *netdev, const u8 *addr,
7985 enum nl80211_key_type key_type, int key_id,
7986 const u8 *tsc, gfp_t gfp)
7988 struct sk_buff *msg;
7991 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7995 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8001 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8002 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8003 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8004 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8006 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8007 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8008 goto nla_put_failure;
8010 genlmsg_end(msg, hdr);
8012 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8013 nl80211_mlme_mcgrp.id, gfp);
8017 genlmsg_cancel(msg, hdr);
8021 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8022 struct ieee80211_channel *channel_before,
8023 struct ieee80211_channel *channel_after)
8025 struct sk_buff *msg;
8027 struct nlattr *nl_freq;
8029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8033 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8040 * Since we are applying the beacon hint to a wiphy we know its
8041 * wiphy_idx is valid
8043 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8044 goto nla_put_failure;
8047 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8049 goto nla_put_failure;
8050 if (nl80211_msg_put_channel(msg, channel_before))
8051 goto nla_put_failure;
8052 nla_nest_end(msg, nl_freq);
8055 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8057 goto nla_put_failure;
8058 if (nl80211_msg_put_channel(msg, channel_after))
8059 goto nla_put_failure;
8060 nla_nest_end(msg, nl_freq);
8062 genlmsg_end(msg, hdr);
8065 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8072 genlmsg_cancel(msg, hdr);
8076 static void nl80211_send_remain_on_chan_event(
8077 int cmd, struct cfg80211_registered_device *rdev,
8078 struct wireless_dev *wdev, u64 cookie,
8079 struct ieee80211_channel *chan,
8080 enum nl80211_channel_type channel_type,
8081 unsigned int duration, gfp_t gfp)
8083 struct sk_buff *msg;
8086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8090 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8096 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8097 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8098 wdev->netdev->ifindex)) ||
8099 nla_put_u32(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8100 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8101 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8102 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8103 goto nla_put_failure;
8105 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8106 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8107 goto nla_put_failure;
8109 genlmsg_end(msg, hdr);
8111 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8112 nl80211_mlme_mcgrp.id, gfp);
8116 genlmsg_cancel(msg, hdr);
8120 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8121 struct wireless_dev *wdev, u64 cookie,
8122 struct ieee80211_channel *chan,
8123 enum nl80211_channel_type channel_type,
8124 unsigned int duration, gfp_t gfp)
8126 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8127 rdev, wdev, cookie, chan,
8128 channel_type, duration, gfp);
8131 void nl80211_send_remain_on_channel_cancel(
8132 struct cfg80211_registered_device *rdev,
8133 struct wireless_dev *wdev,
8134 u64 cookie, struct ieee80211_channel *chan,
8135 enum nl80211_channel_type channel_type, gfp_t gfp)
8137 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8138 rdev, wdev, cookie, chan,
8139 channel_type, 0, gfp);
8142 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8143 struct net_device *dev, const u8 *mac_addr,
8144 struct station_info *sinfo, gfp_t gfp)
8146 struct sk_buff *msg;
8148 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8152 if (nl80211_send_station(msg, 0, 0, 0,
8153 rdev, dev, mac_addr, sinfo) < 0) {
8158 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8159 nl80211_mlme_mcgrp.id, gfp);
8162 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8163 struct net_device *dev, const u8 *mac_addr,
8166 struct sk_buff *msg;
8169 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8173 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8179 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8180 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8181 goto nla_put_failure;
8183 genlmsg_end(msg, hdr);
8185 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8186 nl80211_mlme_mcgrp.id, gfp);
8190 genlmsg_cancel(msg, hdr);
8194 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8195 const u8 *addr, gfp_t gfp)
8197 struct wireless_dev *wdev = dev->ieee80211_ptr;
8198 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8199 struct sk_buff *msg;
8202 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8207 msg = nlmsg_new(100, gfp);
8211 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8217 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8218 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8219 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8220 goto nla_put_failure;
8222 err = genlmsg_end(msg, hdr);
8228 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8232 genlmsg_cancel(msg, hdr);
8237 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8239 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8243 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8244 const u8 *addr, gfp_t gfp)
8246 return __nl80211_unexpected_frame(dev,
8247 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8251 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8252 struct wireless_dev *wdev, u32 nlpid,
8253 int freq, int sig_dbm,
8254 const u8 *buf, size_t len, gfp_t gfp)
8256 struct net_device *netdev = wdev->netdev;
8257 struct sk_buff *msg;
8260 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8264 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8270 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8271 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8272 netdev->ifindex)) ||
8273 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8275 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8276 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8277 goto nla_put_failure;
8279 genlmsg_end(msg, hdr);
8281 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8284 genlmsg_cancel(msg, hdr);
8289 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8290 struct wireless_dev *wdev, u64 cookie,
8291 const u8 *buf, size_t len, bool ack,
8294 struct net_device *netdev = wdev->netdev;
8295 struct sk_buff *msg;
8298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8302 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8308 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8309 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8310 netdev->ifindex)) ||
8311 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8312 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8313 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8314 goto nla_put_failure;
8316 genlmsg_end(msg, hdr);
8318 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8322 genlmsg_cancel(msg, hdr);
8327 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8328 struct net_device *netdev,
8329 enum nl80211_cqm_rssi_threshold_event rssi_event,
8332 struct sk_buff *msg;
8333 struct nlattr *pinfoattr;
8336 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8340 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8346 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8347 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8348 goto nla_put_failure;
8350 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8352 goto nla_put_failure;
8354 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8356 goto nla_put_failure;
8358 nla_nest_end(msg, pinfoattr);
8360 genlmsg_end(msg, hdr);
8362 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8363 nl80211_mlme_mcgrp.id, gfp);
8367 genlmsg_cancel(msg, hdr);
8371 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8372 struct net_device *netdev, const u8 *bssid,
8373 const u8 *replay_ctr, gfp_t gfp)
8375 struct sk_buff *msg;
8376 struct nlattr *rekey_attr;
8379 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8383 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8390 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8391 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8392 goto nla_put_failure;
8394 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8396 goto nla_put_failure;
8398 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8399 NL80211_REPLAY_CTR_LEN, replay_ctr))
8400 goto nla_put_failure;
8402 nla_nest_end(msg, rekey_attr);
8404 genlmsg_end(msg, hdr);
8406 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8407 nl80211_mlme_mcgrp.id, gfp);
8411 genlmsg_cancel(msg, hdr);
8415 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8416 struct net_device *netdev, int index,
8417 const u8 *bssid, bool preauth, gfp_t gfp)
8419 struct sk_buff *msg;
8420 struct nlattr *attr;
8423 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8427 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8433 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8434 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8435 goto nla_put_failure;
8437 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8439 goto nla_put_failure;
8441 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8442 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8444 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8445 goto nla_put_failure;
8447 nla_nest_end(msg, attr);
8449 genlmsg_end(msg, hdr);
8451 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8452 nl80211_mlme_mcgrp.id, gfp);
8456 genlmsg_cancel(msg, hdr);
8460 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8461 struct net_device *netdev, int freq,
8462 enum nl80211_channel_type type, gfp_t gfp)
8464 struct sk_buff *msg;
8467 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8471 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8477 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8478 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8479 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8480 goto nla_put_failure;
8482 genlmsg_end(msg, hdr);
8484 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8485 nl80211_mlme_mcgrp.id, gfp);
8489 genlmsg_cancel(msg, hdr);
8494 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8495 struct net_device *netdev, const u8 *peer,
8496 u32 num_packets, gfp_t gfp)
8498 struct sk_buff *msg;
8499 struct nlattr *pinfoattr;
8502 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8506 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8512 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8513 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8514 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8515 goto nla_put_failure;
8517 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8519 goto nla_put_failure;
8521 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8522 goto nla_put_failure;
8524 nla_nest_end(msg, pinfoattr);
8526 genlmsg_end(msg, hdr);
8528 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8529 nl80211_mlme_mcgrp.id, gfp);
8533 genlmsg_cancel(msg, hdr);
8537 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8538 u64 cookie, bool acked, gfp_t gfp)
8540 struct wireless_dev *wdev = dev->ieee80211_ptr;
8541 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8542 struct sk_buff *msg;
8546 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8550 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8557 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8558 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8559 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8560 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8561 goto nla_put_failure;
8563 err = genlmsg_end(msg, hdr);
8569 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8570 nl80211_mlme_mcgrp.id, gfp);
8574 genlmsg_cancel(msg, hdr);
8577 EXPORT_SYMBOL(cfg80211_probe_status);
8579 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8580 const u8 *frame, size_t len,
8581 int freq, int sig_dbm, gfp_t gfp)
8583 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8584 struct sk_buff *msg;
8586 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8591 msg = nlmsg_new(len + 100, gfp);
8595 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8601 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8603 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8605 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8606 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8607 goto nla_put_failure;
8609 genlmsg_end(msg, hdr);
8611 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8615 genlmsg_cancel(msg, hdr);
8618 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8620 static int nl80211_netlink_notify(struct notifier_block * nb,
8621 unsigned long state,
8624 struct netlink_notify *notify = _notify;
8625 struct cfg80211_registered_device *rdev;
8626 struct wireless_dev *wdev;
8628 if (state != NETLINK_URELEASE)
8633 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8634 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
8635 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8636 if (rdev->ap_beacons_nlpid == notify->pid)
8637 rdev->ap_beacons_nlpid = 0;
8645 static struct notifier_block nl80211_netlink_notifier = {
8646 .notifier_call = nl80211_netlink_notify,
8649 /* initialisation/exit functions */
8651 int nl80211_init(void)
8655 err = genl_register_family_with_ops(&nl80211_fam,
8656 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8660 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8664 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8668 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8672 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8676 #ifdef CONFIG_NL80211_TESTMODE
8677 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8682 err = netlink_register_notifier(&nl80211_netlink_notifier);
8688 genl_unregister_family(&nl80211_fam);
8692 void nl80211_exit(void)
8694 netlink_unregister_notifier(&nl80211_netlink_notifier);
8695 genl_unregister_family(&nl80211_fam);