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 net_device *dev;
1976 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1979 memset(¶ms, 0, sizeof(params));
1981 if (!info->attrs[NL80211_ATTR_IFNAME])
1984 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1985 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1986 if (type > NL80211_IFTYPE_MAX)
1990 if (!rdev->ops->add_virtual_intf ||
1991 !(rdev->wiphy.interface_modes & (1 << type)))
1994 if (info->attrs[NL80211_ATTR_4ADDR]) {
1995 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1996 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2001 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2002 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2004 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
2005 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2006 type, err ? NULL : &flags, ¶ms);
2008 return PTR_ERR(dev);
2010 if (type == NL80211_IFTYPE_MESH_POINT &&
2011 info->attrs[NL80211_ATTR_MESH_ID]) {
2012 struct wireless_dev *wdev = dev->ieee80211_ptr;
2015 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2016 IEEE80211_MAX_MESH_ID_LEN);
2017 wdev->mesh_id_up_len =
2018 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2019 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2020 wdev->mesh_id_up_len);
2027 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2030 struct net_device *dev = info->user_ptr[1];
2032 if (!rdev->ops->del_virtual_intf)
2035 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
2038 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2041 struct net_device *dev = info->user_ptr[1];
2044 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2047 if (!rdev->ops->set_noack_map)
2050 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2052 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2055 struct get_key_cookie {
2056 struct sk_buff *msg;
2061 static void get_key_callback(void *c, struct key_params *params)
2064 struct get_key_cookie *cookie = c;
2067 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2068 params->key_len, params->key)) ||
2070 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2071 params->seq_len, params->seq)) ||
2073 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2075 goto nla_put_failure;
2077 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2079 goto nla_put_failure;
2082 nla_put(cookie->msg, NL80211_KEY_DATA,
2083 params->key_len, params->key)) ||
2085 nla_put(cookie->msg, NL80211_KEY_SEQ,
2086 params->seq_len, params->seq)) ||
2088 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2090 goto nla_put_failure;
2092 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2093 goto nla_put_failure;
2095 nla_nest_end(cookie->msg, key);
2102 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2104 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2106 struct net_device *dev = info->user_ptr[1];
2108 const u8 *mac_addr = NULL;
2110 struct get_key_cookie cookie = {
2114 struct sk_buff *msg;
2116 if (info->attrs[NL80211_ATTR_KEY_IDX])
2117 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2122 if (info->attrs[NL80211_ATTR_MAC])
2123 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2125 pairwise = !!mac_addr;
2126 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2127 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2128 if (kt >= NUM_NL80211_KEYTYPES)
2130 if (kt != NL80211_KEYTYPE_GROUP &&
2131 kt != NL80211_KEYTYPE_PAIRWISE)
2133 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2136 if (!rdev->ops->get_key)
2139 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2143 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2144 NL80211_CMD_NEW_KEY);
2146 return PTR_ERR(hdr);
2149 cookie.idx = key_idx;
2151 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2152 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2153 goto nla_put_failure;
2155 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2156 goto nla_put_failure;
2158 if (pairwise && mac_addr &&
2159 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2162 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2163 mac_addr, &cookie, get_key_callback);
2169 goto nla_put_failure;
2171 genlmsg_end(msg, hdr);
2172 return genlmsg_reply(msg, info);
2181 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2183 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2184 struct key_parse key;
2186 struct net_device *dev = info->user_ptr[1];
2188 err = nl80211_parse_key(info, &key);
2195 /* only support setting default key */
2196 if (!key.def && !key.defmgmt)
2199 wdev_lock(dev->ieee80211_ptr);
2202 if (!rdev->ops->set_default_key) {
2207 err = nl80211_key_allowed(dev->ieee80211_ptr);
2211 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2212 key.def_uni, key.def_multi);
2217 #ifdef CONFIG_CFG80211_WEXT
2218 dev->ieee80211_ptr->wext.default_key = key.idx;
2221 if (key.def_uni || !key.def_multi) {
2226 if (!rdev->ops->set_default_mgmt_key) {
2231 err = nl80211_key_allowed(dev->ieee80211_ptr);
2235 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2240 #ifdef CONFIG_CFG80211_WEXT
2241 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2246 wdev_unlock(dev->ieee80211_ptr);
2251 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2255 struct net_device *dev = info->user_ptr[1];
2256 struct key_parse key;
2257 const u8 *mac_addr = NULL;
2259 err = nl80211_parse_key(info, &key);
2266 if (info->attrs[NL80211_ATTR_MAC])
2267 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2269 if (key.type == -1) {
2271 key.type = NL80211_KEYTYPE_PAIRWISE;
2273 key.type = NL80211_KEYTYPE_GROUP;
2277 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2278 key.type != NL80211_KEYTYPE_GROUP)
2281 if (!rdev->ops->add_key)
2284 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2285 key.type == NL80211_KEYTYPE_PAIRWISE,
2289 wdev_lock(dev->ieee80211_ptr);
2290 err = nl80211_key_allowed(dev->ieee80211_ptr);
2292 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2293 key.type == NL80211_KEYTYPE_PAIRWISE,
2295 wdev_unlock(dev->ieee80211_ptr);
2300 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2304 struct net_device *dev = info->user_ptr[1];
2305 u8 *mac_addr = NULL;
2306 struct key_parse key;
2308 err = nl80211_parse_key(info, &key);
2312 if (info->attrs[NL80211_ATTR_MAC])
2313 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2315 if (key.type == -1) {
2317 key.type = NL80211_KEYTYPE_PAIRWISE;
2319 key.type = NL80211_KEYTYPE_GROUP;
2323 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2324 key.type != NL80211_KEYTYPE_GROUP)
2327 if (!rdev->ops->del_key)
2330 wdev_lock(dev->ieee80211_ptr);
2331 err = nl80211_key_allowed(dev->ieee80211_ptr);
2333 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2334 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2338 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2339 key.type == NL80211_KEYTYPE_PAIRWISE,
2342 #ifdef CONFIG_CFG80211_WEXT
2344 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2345 dev->ieee80211_ptr->wext.default_key = -1;
2346 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2347 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2350 wdev_unlock(dev->ieee80211_ptr);
2355 static int nl80211_parse_beacon(struct genl_info *info,
2356 struct cfg80211_beacon_data *bcn)
2358 bool haveinfo = false;
2360 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2361 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2362 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2363 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2366 memset(bcn, 0, sizeof(*bcn));
2368 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2369 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2370 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2376 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2377 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2379 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2386 if (info->attrs[NL80211_ATTR_IE]) {
2387 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2388 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2391 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2392 bcn->proberesp_ies =
2393 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2394 bcn->proberesp_ies_len =
2395 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2398 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2399 bcn->assocresp_ies =
2400 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2401 bcn->assocresp_ies_len =
2402 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2405 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2407 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2408 bcn->probe_resp_len =
2409 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2415 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2416 struct cfg80211_ap_settings *params)
2418 struct wireless_dev *wdev;
2421 mutex_lock(&rdev->devlist_mtx);
2423 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2424 if (wdev->iftype != NL80211_IFTYPE_AP &&
2425 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2428 if (!wdev->preset_chan)
2431 params->channel = wdev->preset_chan;
2432 params->channel_type = wdev->preset_chantype;
2437 mutex_unlock(&rdev->devlist_mtx);
2442 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2445 struct net_device *dev = info->user_ptr[1];
2446 struct wireless_dev *wdev = dev->ieee80211_ptr;
2447 struct cfg80211_ap_settings params;
2450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2451 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2454 if (!rdev->ops->start_ap)
2457 if (wdev->beacon_interval)
2460 memset(¶ms, 0, sizeof(params));
2462 /* these are required for START_AP */
2463 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2464 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2465 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2468 err = nl80211_parse_beacon(info, ¶ms.beacon);
2472 params.beacon_interval =
2473 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2474 params.dtim_period =
2475 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2477 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2482 * In theory, some of these attributes should be required here
2483 * but since they were not used when the command was originally
2484 * added, keep them optional for old user space programs to let
2485 * them continue to work with drivers that do not need the
2486 * additional information -- drivers must check!
2488 if (info->attrs[NL80211_ATTR_SSID]) {
2489 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2491 nla_len(info->attrs[NL80211_ATTR_SSID]);
2492 if (params.ssid_len == 0 ||
2493 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2497 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2498 params.hidden_ssid = nla_get_u32(
2499 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2500 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2501 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2502 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2506 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2508 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2509 params.auth_type = nla_get_u32(
2510 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2511 if (!nl80211_valid_auth_type(params.auth_type))
2514 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2516 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2517 NL80211_MAX_NR_CIPHER_SUITES);
2521 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2522 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2524 params.inactivity_timeout = nla_get_u16(
2525 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2528 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2529 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2531 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2532 !nl80211_valid_channel_type(info, &channel_type))
2535 params.channel = rdev_freq_to_chan(rdev,
2536 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2538 if (!params.channel)
2540 params.channel_type = channel_type;
2541 } else if (wdev->preset_chan) {
2542 params.channel = wdev->preset_chan;
2543 params.channel_type = wdev->preset_chantype;
2544 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2547 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2548 params.channel_type))
2551 mutex_lock(&rdev->devlist_mtx);
2552 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2554 mutex_unlock(&rdev->devlist_mtx);
2559 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2561 wdev->preset_chan = params.channel;
2562 wdev->preset_chantype = params.channel_type;
2563 wdev->beacon_interval = params.beacon_interval;
2564 wdev->channel = params.channel;
2569 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2572 struct net_device *dev = info->user_ptr[1];
2573 struct wireless_dev *wdev = dev->ieee80211_ptr;
2574 struct cfg80211_beacon_data params;
2577 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2578 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2581 if (!rdev->ops->change_beacon)
2584 if (!wdev->beacon_interval)
2587 err = nl80211_parse_beacon(info, ¶ms);
2591 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2594 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2597 struct net_device *dev = info->user_ptr[1];
2599 return cfg80211_stop_ap(rdev, dev);
2602 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2603 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2604 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2605 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2606 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2607 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2608 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2611 static int parse_station_flags(struct genl_info *info,
2612 enum nl80211_iftype iftype,
2613 struct station_parameters *params)
2615 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2620 * Try parsing the new attribute first so userspace
2621 * can specify both for older kernels.
2623 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2625 struct nl80211_sta_flag_update *sta_flags;
2627 sta_flags = nla_data(nla);
2628 params->sta_flags_mask = sta_flags->mask;
2629 params->sta_flags_set = sta_flags->set;
2630 if ((params->sta_flags_mask |
2631 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2636 /* if present, parse the old attribute */
2638 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2642 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2643 nla, sta_flags_policy))
2647 * Only allow certain flags for interface types so that
2648 * other attributes are silently ignored. Remember that
2649 * this is backward compatibility code with old userspace
2650 * and shouldn't be hit in other cases anyway.
2653 case NL80211_IFTYPE_AP:
2654 case NL80211_IFTYPE_AP_VLAN:
2655 case NL80211_IFTYPE_P2P_GO:
2656 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2657 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2658 BIT(NL80211_STA_FLAG_WME) |
2659 BIT(NL80211_STA_FLAG_MFP);
2661 case NL80211_IFTYPE_P2P_CLIENT:
2662 case NL80211_IFTYPE_STATION:
2663 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2664 BIT(NL80211_STA_FLAG_TDLS_PEER);
2666 case NL80211_IFTYPE_MESH_POINT:
2667 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2668 BIT(NL80211_STA_FLAG_MFP) |
2669 BIT(NL80211_STA_FLAG_AUTHORIZED);
2674 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2676 params->sta_flags_set |= (1<<flag);
2678 /* no longer support new API additions in old API */
2679 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2687 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2690 struct nlattr *rate;
2694 rate = nla_nest_start(msg, attr);
2696 goto nla_put_failure;
2698 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2699 bitrate = cfg80211_calculate_bitrate(info);
2700 /* report 16-bit bitrate only if we can */
2701 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2703 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2704 (bitrate_compat > 0 &&
2705 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
2706 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2707 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2708 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2709 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2710 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2711 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2712 goto nla_put_failure;
2714 nla_nest_end(msg, rate);
2721 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2723 struct cfg80211_registered_device *rdev,
2724 struct net_device *dev,
2725 const u8 *mac_addr, struct station_info *sinfo)
2728 struct nlattr *sinfoattr, *bss_param;
2730 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2734 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2735 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2736 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2737 goto nla_put_failure;
2739 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2741 goto nla_put_failure;
2742 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2743 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2744 sinfo->connected_time))
2745 goto nla_put_failure;
2746 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2747 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2748 sinfo->inactive_time))
2749 goto nla_put_failure;
2750 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2751 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2753 goto nla_put_failure;
2754 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2755 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2757 goto nla_put_failure;
2758 if ((sinfo->filled & STATION_INFO_LLID) &&
2759 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2760 goto nla_put_failure;
2761 if ((sinfo->filled & STATION_INFO_PLID) &&
2762 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2763 goto nla_put_failure;
2764 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2765 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2766 sinfo->plink_state))
2767 goto nla_put_failure;
2768 switch (rdev->wiphy.signal_type) {
2769 case CFG80211_SIGNAL_TYPE_MBM:
2770 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2771 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2773 goto nla_put_failure;
2774 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2775 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2777 goto nla_put_failure;
2782 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2783 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2784 NL80211_STA_INFO_TX_BITRATE))
2785 goto nla_put_failure;
2787 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2788 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2789 NL80211_STA_INFO_RX_BITRATE))
2790 goto nla_put_failure;
2792 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2793 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2795 goto nla_put_failure;
2796 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2797 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2799 goto nla_put_failure;
2800 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2801 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2803 goto nla_put_failure;
2804 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2805 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2807 goto nla_put_failure;
2808 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2809 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2810 sinfo->beacon_loss_count))
2811 goto nla_put_failure;
2812 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2813 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2815 goto nla_put_failure;
2817 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2818 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2819 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2820 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2821 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2822 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2823 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2824 sinfo->bss_param.dtim_period) ||
2825 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2826 sinfo->bss_param.beacon_interval))
2827 goto nla_put_failure;
2829 nla_nest_end(msg, bss_param);
2831 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2832 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2833 sizeof(struct nl80211_sta_flag_update),
2835 goto nla_put_failure;
2836 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2837 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2839 goto nla_put_failure;
2840 nla_nest_end(msg, sinfoattr);
2842 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2843 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2844 sinfo->assoc_req_ies))
2845 goto nla_put_failure;
2847 return genlmsg_end(msg, hdr);
2850 genlmsg_cancel(msg, hdr);
2854 static int nl80211_dump_station(struct sk_buff *skb,
2855 struct netlink_callback *cb)
2857 struct station_info sinfo;
2858 struct cfg80211_registered_device *dev;
2859 struct net_device *netdev;
2860 u8 mac_addr[ETH_ALEN];
2861 int sta_idx = cb->args[1];
2864 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2868 if (!dev->ops->dump_station) {
2874 memset(&sinfo, 0, sizeof(sinfo));
2875 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2882 if (nl80211_send_station(skb,
2883 NETLINK_CB(cb->skb).pid,
2884 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2885 dev, netdev, mac_addr,
2894 cb->args[1] = sta_idx;
2897 nl80211_finish_netdev_dump(dev);
2902 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2905 struct net_device *dev = info->user_ptr[1];
2906 struct station_info sinfo;
2907 struct sk_buff *msg;
2908 u8 *mac_addr = NULL;
2911 memset(&sinfo, 0, sizeof(sinfo));
2913 if (!info->attrs[NL80211_ATTR_MAC])
2916 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2918 if (!rdev->ops->get_station)
2921 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2925 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2929 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2930 rdev, dev, mac_addr, &sinfo) < 0) {
2935 return genlmsg_reply(msg, info);
2939 * Get vlan interface making sure it is running and on the right wiphy.
2941 static struct net_device *get_vlan(struct genl_info *info,
2942 struct cfg80211_registered_device *rdev)
2944 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2945 struct net_device *v;
2951 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2953 return ERR_PTR(-ENODEV);
2955 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2960 if (!netif_running(v)) {
2968 return ERR_PTR(ret);
2971 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2975 struct net_device *dev = info->user_ptr[1];
2976 struct station_parameters params;
2977 u8 *mac_addr = NULL;
2979 memset(¶ms, 0, sizeof(params));
2981 params.listen_interval = -1;
2982 params.plink_state = -1;
2984 if (info->attrs[NL80211_ATTR_STA_AID])
2987 if (!info->attrs[NL80211_ATTR_MAC])
2990 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2992 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2993 params.supported_rates =
2994 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2995 params.supported_rates_len =
2996 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2999 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3000 params.listen_interval =
3001 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3003 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3005 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3007 if (!rdev->ops->change_station)
3010 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3013 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3014 params.plink_action =
3015 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3017 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3018 params.plink_state =
3019 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3021 switch (dev->ieee80211_ptr->iftype) {
3022 case NL80211_IFTYPE_AP:
3023 case NL80211_IFTYPE_AP_VLAN:
3024 case NL80211_IFTYPE_P2P_GO:
3025 /* disallow mesh-specific things */
3026 if (params.plink_action)
3029 /* TDLS can't be set, ... */
3030 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3033 * ... but don't bother the driver with it. This works around
3034 * a hostapd/wpa_supplicant issue -- it always includes the
3035 * TLDS_PEER flag in the mask even for AP mode.
3037 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3039 /* accept only the listed bits */
3040 if (params.sta_flags_mask &
3041 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3042 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3043 BIT(NL80211_STA_FLAG_WME) |
3044 BIT(NL80211_STA_FLAG_MFP)))
3047 /* must be last in here for error handling */
3048 params.vlan = get_vlan(info, rdev);
3049 if (IS_ERR(params.vlan))
3050 return PTR_ERR(params.vlan);
3052 case NL80211_IFTYPE_P2P_CLIENT:
3053 case NL80211_IFTYPE_STATION:
3055 * Don't allow userspace to change the TDLS_PEER flag,
3056 * but silently ignore attempts to change it since we
3057 * don't have state here to verify that it doesn't try
3058 * to change the flag.
3060 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3062 case NL80211_IFTYPE_ADHOC:
3063 /* disallow things sta doesn't support */
3064 if (params.plink_action)
3068 if (params.listen_interval >= 0)
3070 /* reject any changes other than AUTHORIZED */
3071 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3074 case NL80211_IFTYPE_MESH_POINT:
3075 /* disallow things mesh doesn't support */
3080 if (params.listen_interval >= 0)
3083 * No special handling for TDLS here -- the userspace
3084 * mesh code doesn't have this bug.
3086 if (params.sta_flags_mask &
3087 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3088 BIT(NL80211_STA_FLAG_MFP) |
3089 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3096 /* be aware of params.vlan when changing code here */
3098 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3101 dev_put(params.vlan);
3106 static struct nla_policy
3107 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3108 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3109 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3112 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3116 struct net_device *dev = info->user_ptr[1];
3117 struct station_parameters params;
3118 u8 *mac_addr = NULL;
3120 memset(¶ms, 0, sizeof(params));
3122 if (!info->attrs[NL80211_ATTR_MAC])
3125 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3128 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3131 if (!info->attrs[NL80211_ATTR_STA_AID])
3134 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3135 params.supported_rates =
3136 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3137 params.supported_rates_len =
3138 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3139 params.listen_interval =
3140 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3142 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3143 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3146 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3148 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3150 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3151 params.plink_action =
3152 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3154 if (!rdev->ops->add_station)
3157 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3160 switch (dev->ieee80211_ptr->iftype) {
3161 case NL80211_IFTYPE_AP:
3162 case NL80211_IFTYPE_AP_VLAN:
3163 case NL80211_IFTYPE_P2P_GO:
3164 /* parse WME attributes if sta is WME capable */
3165 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3166 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3167 info->attrs[NL80211_ATTR_STA_WME]) {
3168 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3171 nla = info->attrs[NL80211_ATTR_STA_WME];
3172 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3173 nl80211_sta_wme_policy);
3177 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3178 params.uapsd_queues =
3179 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3180 if (params.uapsd_queues &
3181 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3184 if (tb[NL80211_STA_WME_MAX_SP])
3186 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3189 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3192 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3194 /* TDLS peers cannot be added */
3195 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3197 /* but don't bother the driver with it */
3198 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3200 /* must be last in here for error handling */
3201 params.vlan = get_vlan(info, rdev);
3202 if (IS_ERR(params.vlan))
3203 return PTR_ERR(params.vlan);
3205 case NL80211_IFTYPE_MESH_POINT:
3206 /* TDLS peers cannot be added */
3207 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3210 case NL80211_IFTYPE_STATION:
3211 /* Only TDLS peers can be added */
3212 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3214 /* Can only add if TDLS ... */
3215 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3217 /* ... with external setup is supported */
3218 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3225 /* be aware of params.vlan when changing code here */
3227 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3230 dev_put(params.vlan);
3234 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3236 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3237 struct net_device *dev = info->user_ptr[1];
3238 u8 *mac_addr = NULL;
3240 if (info->attrs[NL80211_ATTR_MAC])
3241 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3243 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3244 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3245 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3246 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3249 if (!rdev->ops->del_station)
3252 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3255 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3256 int flags, struct net_device *dev,
3257 u8 *dst, u8 *next_hop,
3258 struct mpath_info *pinfo)
3261 struct nlattr *pinfoattr;
3263 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3267 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3268 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3269 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3270 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3271 goto nla_put_failure;
3273 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3275 goto nla_put_failure;
3276 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3277 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3279 goto nla_put_failure;
3280 if (((pinfo->filled & MPATH_INFO_SN) &&
3281 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3282 ((pinfo->filled & MPATH_INFO_METRIC) &&
3283 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3285 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3286 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3288 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3289 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3291 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3292 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3293 pinfo->discovery_timeout)) ||
3294 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3295 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3296 pinfo->discovery_retries)))
3297 goto nla_put_failure;
3299 nla_nest_end(msg, pinfoattr);
3301 return genlmsg_end(msg, hdr);
3304 genlmsg_cancel(msg, hdr);
3308 static int nl80211_dump_mpath(struct sk_buff *skb,
3309 struct netlink_callback *cb)
3311 struct mpath_info pinfo;
3312 struct cfg80211_registered_device *dev;
3313 struct net_device *netdev;
3315 u8 next_hop[ETH_ALEN];
3316 int path_idx = cb->args[1];
3319 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3323 if (!dev->ops->dump_mpath) {
3328 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3334 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3335 dst, next_hop, &pinfo);
3341 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3342 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3343 netdev, dst, next_hop,
3352 cb->args[1] = path_idx;
3355 nl80211_finish_netdev_dump(dev);
3359 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3363 struct net_device *dev = info->user_ptr[1];
3364 struct mpath_info pinfo;
3365 struct sk_buff *msg;
3367 u8 next_hop[ETH_ALEN];
3369 memset(&pinfo, 0, sizeof(pinfo));
3371 if (!info->attrs[NL80211_ATTR_MAC])
3374 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3376 if (!rdev->ops->get_mpath)
3379 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3382 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3390 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3391 dev, dst, next_hop, &pinfo) < 0) {
3396 return genlmsg_reply(msg, info);
3399 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3401 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3402 struct net_device *dev = info->user_ptr[1];
3404 u8 *next_hop = NULL;
3406 if (!info->attrs[NL80211_ATTR_MAC])
3409 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3412 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3413 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3415 if (!rdev->ops->change_mpath)
3418 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3421 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3424 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3427 struct net_device *dev = info->user_ptr[1];
3429 u8 *next_hop = NULL;
3431 if (!info->attrs[NL80211_ATTR_MAC])
3434 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3437 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3438 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3440 if (!rdev->ops->add_mpath)
3443 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3446 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3449 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3452 struct net_device *dev = info->user_ptr[1];
3455 if (info->attrs[NL80211_ATTR_MAC])
3456 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3458 if (!rdev->ops->del_mpath)
3461 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3464 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3466 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3467 struct net_device *dev = info->user_ptr[1];
3468 struct bss_parameters params;
3470 memset(¶ms, 0, sizeof(params));
3471 /* default to not changing parameters */
3472 params.use_cts_prot = -1;
3473 params.use_short_preamble = -1;
3474 params.use_short_slot_time = -1;
3475 params.ap_isolate = -1;
3476 params.ht_opmode = -1;
3478 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3479 params.use_cts_prot =
3480 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3481 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3482 params.use_short_preamble =
3483 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3484 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3485 params.use_short_slot_time =
3486 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3487 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3488 params.basic_rates =
3489 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3490 params.basic_rates_len =
3491 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3493 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3494 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3495 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3497 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3499 if (!rdev->ops->change_bss)
3502 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3503 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3506 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3509 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3510 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3511 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3512 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3513 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3514 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3515 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3518 static int parse_reg_rule(struct nlattr *tb[],
3519 struct ieee80211_reg_rule *reg_rule)
3521 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3522 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3524 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3526 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3528 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3530 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3532 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3535 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3537 freq_range->start_freq_khz =
3538 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3539 freq_range->end_freq_khz =
3540 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3541 freq_range->max_bandwidth_khz =
3542 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3544 power_rule->max_eirp =
3545 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3547 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3548 power_rule->max_antenna_gain =
3549 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3554 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3560 * You should only get this when cfg80211 hasn't yet initialized
3561 * completely when built-in to the kernel right between the time
3562 * window between nl80211_init() and regulatory_init(), if that is
3565 mutex_lock(&cfg80211_mutex);
3566 if (unlikely(!cfg80211_regdomain)) {
3567 mutex_unlock(&cfg80211_mutex);
3568 return -EINPROGRESS;
3570 mutex_unlock(&cfg80211_mutex);
3572 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3575 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3577 r = regulatory_hint_user(data);
3582 static int nl80211_get_mesh_config(struct sk_buff *skb,
3583 struct genl_info *info)
3585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3586 struct net_device *dev = info->user_ptr[1];
3587 struct wireless_dev *wdev = dev->ieee80211_ptr;
3588 struct mesh_config cur_params;
3591 struct nlattr *pinfoattr;
3592 struct sk_buff *msg;
3594 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3597 if (!rdev->ops->get_mesh_config)
3601 /* If not connected, get default parameters */
3602 if (!wdev->mesh_id_len)
3603 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3605 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3612 /* Draw up a netlink message to send back */
3613 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3616 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3617 NL80211_CMD_GET_MESH_CONFIG);
3620 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3622 goto nla_put_failure;
3623 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3624 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3625 cur_params.dot11MeshRetryTimeout) ||
3626 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3627 cur_params.dot11MeshConfirmTimeout) ||
3628 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3629 cur_params.dot11MeshHoldingTimeout) ||
3630 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3631 cur_params.dot11MeshMaxPeerLinks) ||
3632 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3633 cur_params.dot11MeshMaxRetries) ||
3634 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3635 cur_params.dot11MeshTTL) ||
3636 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3637 cur_params.element_ttl) ||
3638 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3639 cur_params.auto_open_plinks) ||
3640 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3641 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3642 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3643 cur_params.dot11MeshHWMPmaxPREQretries) ||
3644 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3645 cur_params.path_refresh_time) ||
3646 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3647 cur_params.min_discovery_timeout) ||
3648 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3649 cur_params.dot11MeshHWMPactivePathTimeout) ||
3650 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3651 cur_params.dot11MeshHWMPpreqMinInterval) ||
3652 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3653 cur_params.dot11MeshHWMPperrMinInterval) ||
3654 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3655 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3656 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3657 cur_params.dot11MeshHWMPRootMode) ||
3658 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3659 cur_params.dot11MeshHWMPRannInterval) ||
3660 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3661 cur_params.dot11MeshGateAnnouncementProtocol) ||
3662 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3663 cur_params.dot11MeshForwarding) ||
3664 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3665 cur_params.rssi_threshold) ||
3666 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3667 cur_params.ht_opmode) ||
3668 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3669 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3670 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3671 cur_params.dot11MeshHWMProotInterval) ||
3672 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3673 cur_params.dot11MeshHWMPconfirmationInterval))
3674 goto nla_put_failure;
3675 nla_nest_end(msg, pinfoattr);
3676 genlmsg_end(msg, hdr);
3677 return genlmsg_reply(msg, info);
3680 genlmsg_cancel(msg, hdr);
3686 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3687 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3688 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3689 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3690 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3691 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3692 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3693 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3694 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3695 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3696 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3697 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3698 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3699 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3700 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3701 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3702 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3703 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3704 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3705 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3706 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3707 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3708 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3709 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3710 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3711 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3714 static const struct nla_policy
3715 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3716 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3717 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3718 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3719 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3720 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3721 .len = IEEE80211_MAX_DATA_LEN },
3722 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3725 static int nl80211_parse_mesh_config(struct genl_info *info,
3726 struct mesh_config *cfg,
3729 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3732 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3734 if (table[attr_num]) {\
3735 cfg->param = nla_fn(table[attr_num]); \
3736 mask |= (1 << (attr_num - 1)); \
3741 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3743 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3744 info->attrs[NL80211_ATTR_MESH_CONFIG],
3745 nl80211_meshconf_params_policy))
3748 /* This makes sure that there aren't more than 32 mesh config
3749 * parameters (otherwise our bitfield scheme would not work.) */
3750 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3752 /* Fill in the params struct */
3753 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3754 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3756 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3757 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3759 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3760 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3763 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3765 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3766 mask, NL80211_MESHCONF_MAX_RETRIES,
3768 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3769 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3770 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3771 mask, NL80211_MESHCONF_ELEMENT_TTL,
3773 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3774 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3776 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3777 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3779 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3780 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3782 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3783 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3785 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3786 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3788 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3789 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3791 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3792 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3795 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3798 dot11MeshHWMPnetDiameterTraversalTime, mask,
3799 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3801 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3802 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3803 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3804 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3806 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3807 dot11MeshGateAnnouncementProtocol, mask,
3808 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3810 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3811 mask, NL80211_MESHCONF_FORWARDING,
3813 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3814 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3816 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3817 mask, NL80211_MESHCONF_HT_OPMODE,
3819 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3821 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3823 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3824 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3826 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3827 dot11MeshHWMPconfirmationInterval, mask,
3828 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3835 #undef FILL_IN_MESH_PARAM_IF_SET
3838 static int nl80211_parse_mesh_setup(struct genl_info *info,
3839 struct mesh_setup *setup)
3841 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3843 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3845 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3846 info->attrs[NL80211_ATTR_MESH_SETUP],
3847 nl80211_mesh_setup_params_policy))
3850 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3851 setup->sync_method =
3852 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3853 IEEE80211_SYNC_METHOD_VENDOR :
3854 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3856 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3857 setup->path_sel_proto =
3858 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3859 IEEE80211_PATH_PROTOCOL_VENDOR :
3860 IEEE80211_PATH_PROTOCOL_HWMP;
3862 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3863 setup->path_metric =
3864 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3865 IEEE80211_PATH_METRIC_VENDOR :
3866 IEEE80211_PATH_METRIC_AIRTIME;
3869 if (tb[NL80211_MESH_SETUP_IE]) {
3870 struct nlattr *ieattr =
3871 tb[NL80211_MESH_SETUP_IE];
3872 if (!is_valid_ie_attr(ieattr))
3874 setup->ie = nla_data(ieattr);
3875 setup->ie_len = nla_len(ieattr);
3877 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3878 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3883 static int nl80211_update_mesh_config(struct sk_buff *skb,
3884 struct genl_info *info)
3886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3887 struct net_device *dev = info->user_ptr[1];
3888 struct wireless_dev *wdev = dev->ieee80211_ptr;
3889 struct mesh_config cfg;
3893 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3896 if (!rdev->ops->update_mesh_config)
3899 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3904 if (!wdev->mesh_id_len)
3908 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3916 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3918 struct sk_buff *msg;
3920 struct nlattr *nl_reg_rules;
3924 mutex_lock(&cfg80211_mutex);
3926 if (!cfg80211_regdomain)
3929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3935 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3936 NL80211_CMD_GET_REG);
3940 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3941 cfg80211_regdomain->alpha2) ||
3942 (cfg80211_regdomain->dfs_region &&
3943 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3944 cfg80211_regdomain->dfs_region)))
3945 goto nla_put_failure;
3947 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3949 goto nla_put_failure;
3951 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3952 struct nlattr *nl_reg_rule;
3953 const struct ieee80211_reg_rule *reg_rule;
3954 const struct ieee80211_freq_range *freq_range;
3955 const struct ieee80211_power_rule *power_rule;
3957 reg_rule = &cfg80211_regdomain->reg_rules[i];
3958 freq_range = ®_rule->freq_range;
3959 power_rule = ®_rule->power_rule;
3961 nl_reg_rule = nla_nest_start(msg, i);
3963 goto nla_put_failure;
3965 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3967 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3968 freq_range->start_freq_khz) ||
3969 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3970 freq_range->end_freq_khz) ||
3971 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3972 freq_range->max_bandwidth_khz) ||
3973 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3974 power_rule->max_antenna_gain) ||
3975 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3976 power_rule->max_eirp))
3977 goto nla_put_failure;
3979 nla_nest_end(msg, nl_reg_rule);
3982 nla_nest_end(msg, nl_reg_rules);
3984 genlmsg_end(msg, hdr);
3985 err = genlmsg_reply(msg, info);
3989 genlmsg_cancel(msg, hdr);
3994 mutex_unlock(&cfg80211_mutex);
3998 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4000 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4001 struct nlattr *nl_reg_rule;
4002 char *alpha2 = NULL;
4003 int rem_reg_rules = 0, r = 0;
4004 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4006 struct ieee80211_regdomain *rd = NULL;
4008 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4011 if (!info->attrs[NL80211_ATTR_REG_RULES])
4014 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4016 if (info->attrs[NL80211_ATTR_DFS_REGION])
4017 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4019 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4022 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4026 mutex_lock(&cfg80211_mutex);
4028 if (!reg_is_valid_request(alpha2)) {
4033 size_of_regd = sizeof(struct ieee80211_regdomain) +
4034 (num_rules * sizeof(struct ieee80211_reg_rule));
4036 rd = kzalloc(size_of_regd, GFP_KERNEL);
4042 rd->n_reg_rules = num_rules;
4043 rd->alpha2[0] = alpha2[0];
4044 rd->alpha2[1] = alpha2[1];
4047 * Disable DFS master mode if the DFS region was
4048 * not supported or known on this kernel.
4050 if (reg_supported_dfs_region(dfs_region))
4051 rd->dfs_region = dfs_region;
4053 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4055 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4056 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4058 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4064 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4070 BUG_ON(rule_idx != num_rules);
4074 mutex_unlock(&cfg80211_mutex);
4079 mutex_unlock(&cfg80211_mutex);
4084 static int validate_scan_freqs(struct nlattr *freqs)
4086 struct nlattr *attr1, *attr2;
4087 int n_channels = 0, tmp1, tmp2;
4089 nla_for_each_nested(attr1, freqs, tmp1) {
4092 * Some hardware has a limited channel list for
4093 * scanning, and it is pretty much nonsensical
4094 * to scan for a channel twice, so disallow that
4095 * and don't require drivers to check that the
4096 * channel list they get isn't longer than what
4097 * they can scan, as long as they can scan all
4098 * the channels they registered at once.
4100 nla_for_each_nested(attr2, freqs, tmp2)
4101 if (attr1 != attr2 &&
4102 nla_get_u32(attr1) == nla_get_u32(attr2))
4109 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4112 struct net_device *dev = info->user_ptr[1];
4113 struct cfg80211_scan_request *request;
4114 struct nlattr *attr;
4115 struct wiphy *wiphy;
4116 int err, tmp, n_ssids = 0, n_channels, i;
4119 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4122 wiphy = &rdev->wiphy;
4124 if (!rdev->ops->scan)
4130 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4131 n_channels = validate_scan_freqs(
4132 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4136 enum ieee80211_band band;
4139 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4140 if (wiphy->bands[band])
4141 n_channels += wiphy->bands[band]->n_channels;
4144 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4145 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4148 if (n_ssids > wiphy->max_scan_ssids)
4151 if (info->attrs[NL80211_ATTR_IE])
4152 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4156 if (ie_len > wiphy->max_scan_ie_len)
4159 request = kzalloc(sizeof(*request)
4160 + sizeof(*request->ssids) * n_ssids
4161 + sizeof(*request->channels) * n_channels
4162 + ie_len, GFP_KERNEL);
4167 request->ssids = (void *)&request->channels[n_channels];
4168 request->n_ssids = n_ssids;
4171 request->ie = (void *)(request->ssids + n_ssids);
4173 request->ie = (void *)(request->channels + n_channels);
4177 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4178 /* user specified, bail out if channel not found */
4179 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4180 struct ieee80211_channel *chan;
4182 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4189 /* ignore disabled channels */
4190 if (chan->flags & IEEE80211_CHAN_DISABLED)
4193 request->channels[i] = chan;
4197 enum ieee80211_band band;
4200 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4202 if (!wiphy->bands[band])
4204 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4205 struct ieee80211_channel *chan;
4207 chan = &wiphy->bands[band]->channels[j];
4209 if (chan->flags & IEEE80211_CHAN_DISABLED)
4212 request->channels[i] = chan;
4223 request->n_channels = i;
4226 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4227 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4228 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4232 request->ssids[i].ssid_len = nla_len(attr);
4233 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4238 if (info->attrs[NL80211_ATTR_IE]) {
4239 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4240 memcpy((void *)request->ie,
4241 nla_data(info->attrs[NL80211_ATTR_IE]),
4245 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4246 if (wiphy->bands[i])
4248 (1 << wiphy->bands[i]->n_bitrates) - 1;
4250 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4251 nla_for_each_nested(attr,
4252 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4254 enum ieee80211_band band = nla_type(attr);
4256 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4260 err = ieee80211_get_ratemask(wiphy->bands[band],
4263 &request->rates[band]);
4270 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4273 request->wiphy = &rdev->wiphy;
4275 rdev->scan_req = request;
4276 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4279 nl80211_send_scan_start(rdev, dev);
4283 rdev->scan_req = NULL;
4290 static int nl80211_start_sched_scan(struct sk_buff *skb,
4291 struct genl_info *info)
4293 struct cfg80211_sched_scan_request *request;
4294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4295 struct net_device *dev = info->user_ptr[1];
4296 struct nlattr *attr;
4297 struct wiphy *wiphy;
4298 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4300 enum ieee80211_band band;
4302 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4304 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4305 !rdev->ops->sched_scan_start)
4308 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4311 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4314 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4318 wiphy = &rdev->wiphy;
4320 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4321 n_channels = validate_scan_freqs(
4322 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4328 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4329 if (wiphy->bands[band])
4330 n_channels += wiphy->bands[band]->n_channels;
4333 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4334 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4338 if (n_ssids > wiphy->max_sched_scan_ssids)
4341 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4342 nla_for_each_nested(attr,
4343 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4347 if (n_match_sets > wiphy->max_match_sets)
4350 if (info->attrs[NL80211_ATTR_IE])
4351 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4355 if (ie_len > wiphy->max_sched_scan_ie_len)
4358 mutex_lock(&rdev->sched_scan_mtx);
4360 if (rdev->sched_scan_req) {
4365 request = kzalloc(sizeof(*request)
4366 + sizeof(*request->ssids) * n_ssids
4367 + sizeof(*request->match_sets) * n_match_sets
4368 + sizeof(*request->channels) * n_channels
4369 + ie_len, GFP_KERNEL);
4376 request->ssids = (void *)&request->channels[n_channels];
4377 request->n_ssids = n_ssids;
4380 request->ie = (void *)(request->ssids + n_ssids);
4382 request->ie = (void *)(request->channels + n_channels);
4387 request->match_sets = (void *)(request->ie + ie_len);
4388 else if (request->ssids)
4389 request->match_sets =
4390 (void *)(request->ssids + n_ssids);
4392 request->match_sets =
4393 (void *)(request->channels + n_channels);
4395 request->n_match_sets = n_match_sets;
4398 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4399 /* user specified, bail out if channel not found */
4400 nla_for_each_nested(attr,
4401 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4403 struct ieee80211_channel *chan;
4405 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4412 /* ignore disabled channels */
4413 if (chan->flags & IEEE80211_CHAN_DISABLED)
4416 request->channels[i] = chan;
4421 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4423 if (!wiphy->bands[band])
4425 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4426 struct ieee80211_channel *chan;
4428 chan = &wiphy->bands[band]->channels[j];
4430 if (chan->flags & IEEE80211_CHAN_DISABLED)
4433 request->channels[i] = chan;
4444 request->n_channels = i;
4447 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4448 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4450 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4454 request->ssids[i].ssid_len = nla_len(attr);
4455 memcpy(request->ssids[i].ssid, nla_data(attr),
4462 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4463 nla_for_each_nested(attr,
4464 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4466 struct nlattr *ssid, *rssi;
4468 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4469 nla_data(attr), nla_len(attr),
4470 nl80211_match_policy);
4471 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4473 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4477 memcpy(request->match_sets[i].ssid.ssid,
4478 nla_data(ssid), nla_len(ssid));
4479 request->match_sets[i].ssid.ssid_len =
4482 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4484 request->rssi_thold = nla_get_u32(rssi);
4486 request->rssi_thold =
4487 NL80211_SCAN_RSSI_THOLD_OFF;
4492 if (info->attrs[NL80211_ATTR_IE]) {
4493 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4494 memcpy((void *)request->ie,
4495 nla_data(info->attrs[NL80211_ATTR_IE]),
4500 request->wiphy = &rdev->wiphy;
4501 request->interval = interval;
4503 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4505 rdev->sched_scan_req = request;
4506 nl80211_send_sched_scan(rdev, dev,
4507 NL80211_CMD_START_SCHED_SCAN);
4514 mutex_unlock(&rdev->sched_scan_mtx);
4518 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4519 struct genl_info *info)
4521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4524 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4525 !rdev->ops->sched_scan_stop)
4528 mutex_lock(&rdev->sched_scan_mtx);
4529 err = __cfg80211_stop_sched_scan(rdev, false);
4530 mutex_unlock(&rdev->sched_scan_mtx);
4535 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4537 struct cfg80211_registered_device *rdev,
4538 struct wireless_dev *wdev,
4539 struct cfg80211_internal_bss *intbss)
4541 struct cfg80211_bss *res = &intbss->pub;
4545 ASSERT_WDEV_LOCK(wdev);
4547 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4548 NL80211_CMD_NEW_SCAN_RESULTS);
4552 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4554 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4555 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4556 goto nla_put_failure;
4558 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4560 goto nla_put_failure;
4561 if ((!is_zero_ether_addr(res->bssid) &&
4562 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4563 (res->information_elements && res->len_information_elements &&
4564 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4565 res->len_information_elements,
4566 res->information_elements)) ||
4567 (res->beacon_ies && res->len_beacon_ies &&
4568 res->beacon_ies != res->information_elements &&
4569 nla_put(msg, NL80211_BSS_BEACON_IES,
4570 res->len_beacon_ies, res->beacon_ies)))
4571 goto nla_put_failure;
4573 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4574 goto nla_put_failure;
4575 if (res->beacon_interval &&
4576 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4577 goto nla_put_failure;
4578 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4579 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4580 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4581 jiffies_to_msecs(jiffies - intbss->ts)))
4582 goto nla_put_failure;
4584 switch (rdev->wiphy.signal_type) {
4585 case CFG80211_SIGNAL_TYPE_MBM:
4586 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4587 goto nla_put_failure;
4589 case CFG80211_SIGNAL_TYPE_UNSPEC:
4590 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4591 goto nla_put_failure;
4597 switch (wdev->iftype) {
4598 case NL80211_IFTYPE_P2P_CLIENT:
4599 case NL80211_IFTYPE_STATION:
4600 if (intbss == wdev->current_bss &&
4601 nla_put_u32(msg, NL80211_BSS_STATUS,
4602 NL80211_BSS_STATUS_ASSOCIATED))
4603 goto nla_put_failure;
4605 case NL80211_IFTYPE_ADHOC:
4606 if (intbss == wdev->current_bss &&
4607 nla_put_u32(msg, NL80211_BSS_STATUS,
4608 NL80211_BSS_STATUS_IBSS_JOINED))
4609 goto nla_put_failure;
4615 nla_nest_end(msg, bss);
4617 return genlmsg_end(msg, hdr);
4620 genlmsg_cancel(msg, hdr);
4624 static int nl80211_dump_scan(struct sk_buff *skb,
4625 struct netlink_callback *cb)
4627 struct cfg80211_registered_device *rdev;
4628 struct net_device *dev;
4629 struct cfg80211_internal_bss *scan;
4630 struct wireless_dev *wdev;
4631 int start = cb->args[1], idx = 0;
4634 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4638 wdev = dev->ieee80211_ptr;
4641 spin_lock_bh(&rdev->bss_lock);
4642 cfg80211_bss_expire(rdev);
4644 cb->seq = rdev->bss_generation;
4646 list_for_each_entry(scan, &rdev->bss_list, list) {
4649 if (nl80211_send_bss(skb, cb,
4650 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4651 rdev, wdev, scan) < 0) {
4657 spin_unlock_bh(&rdev->bss_lock);
4661 nl80211_finish_netdev_dump(rdev);
4666 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4667 int flags, struct net_device *dev,
4668 struct survey_info *survey)
4671 struct nlattr *infoattr;
4673 hdr = nl80211hdr_put(msg, pid, seq, flags,
4674 NL80211_CMD_NEW_SURVEY_RESULTS);
4678 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4679 goto nla_put_failure;
4681 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4683 goto nla_put_failure;
4685 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4686 survey->channel->center_freq))
4687 goto nla_put_failure;
4689 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4690 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4691 goto nla_put_failure;
4692 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4693 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4694 goto nla_put_failure;
4695 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4696 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4697 survey->channel_time))
4698 goto nla_put_failure;
4699 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4700 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4701 survey->channel_time_busy))
4702 goto nla_put_failure;
4703 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4704 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4705 survey->channel_time_ext_busy))
4706 goto nla_put_failure;
4707 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4708 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4709 survey->channel_time_rx))
4710 goto nla_put_failure;
4711 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4712 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4713 survey->channel_time_tx))
4714 goto nla_put_failure;
4716 nla_nest_end(msg, infoattr);
4718 return genlmsg_end(msg, hdr);
4721 genlmsg_cancel(msg, hdr);
4725 static int nl80211_dump_survey(struct sk_buff *skb,
4726 struct netlink_callback *cb)
4728 struct survey_info survey;
4729 struct cfg80211_registered_device *dev;
4730 struct net_device *netdev;
4731 int survey_idx = cb->args[1];
4734 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4738 if (!dev->ops->dump_survey) {
4744 struct ieee80211_channel *chan;
4746 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4753 /* Survey without a channel doesn't make sense */
4754 if (!survey.channel) {
4759 chan = ieee80211_get_channel(&dev->wiphy,
4760 survey.channel->center_freq);
4761 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4766 if (nl80211_send_survey(skb,
4767 NETLINK_CB(cb->skb).pid,
4768 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4776 cb->args[1] = survey_idx;
4779 nl80211_finish_netdev_dump(dev);
4783 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4785 return auth_type <= NL80211_AUTHTYPE_MAX;
4788 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4790 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4791 NL80211_WPA_VERSION_2));
4794 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4797 struct net_device *dev = info->user_ptr[1];
4798 struct ieee80211_channel *chan;
4799 const u8 *bssid, *ssid, *ie = NULL;
4800 int err, ssid_len, ie_len = 0;
4801 enum nl80211_auth_type auth_type;
4802 struct key_parse key;
4803 bool local_state_change;
4805 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4808 if (!info->attrs[NL80211_ATTR_MAC])
4811 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4814 if (!info->attrs[NL80211_ATTR_SSID])
4817 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4820 err = nl80211_parse_key(info, &key);
4825 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4827 if (!key.p.key || !key.p.key_len)
4829 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4830 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4831 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4832 key.p.key_len != WLAN_KEY_LEN_WEP104))
4844 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4845 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4854 if (!rdev->ops->auth)
4857 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4858 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4861 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4862 chan = ieee80211_get_channel(&rdev->wiphy,
4863 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4864 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4867 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4868 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4870 if (info->attrs[NL80211_ATTR_IE]) {
4871 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4872 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4875 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4876 if (!nl80211_valid_auth_type(auth_type))
4879 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4882 * Since we no longer track auth state, ignore
4883 * requests to only change local state.
4885 if (local_state_change)
4888 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4889 ssid, ssid_len, ie, ie_len,
4890 key.p.key, key.p.key_len, key.idx);
4893 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4894 struct genl_info *info,
4895 struct cfg80211_crypto_settings *settings,
4898 memset(settings, 0, sizeof(*settings));
4900 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4902 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4904 proto = nla_get_u16(
4905 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4906 settings->control_port_ethertype = cpu_to_be16(proto);
4907 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4910 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4911 settings->control_port_no_encrypt = true;
4913 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4915 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4919 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4920 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4921 settings->n_ciphers_pairwise = len / sizeof(u32);
4923 if (len % sizeof(u32))
4926 if (settings->n_ciphers_pairwise > cipher_limit)
4929 memcpy(settings->ciphers_pairwise, data, len);
4931 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4932 if (!cfg80211_supported_cipher_suite(
4934 settings->ciphers_pairwise[i]))
4938 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4939 settings->cipher_group =
4940 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4941 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4942 settings->cipher_group))
4946 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4947 settings->wpa_versions =
4948 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4949 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4953 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4957 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4958 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4959 settings->n_akm_suites = len / sizeof(u32);
4961 if (len % sizeof(u32))
4964 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4967 memcpy(settings->akm_suites, data, len);
4973 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4976 struct net_device *dev = info->user_ptr[1];
4977 struct cfg80211_crypto_settings crypto;
4978 struct ieee80211_channel *chan;
4979 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4980 int err, ssid_len, ie_len = 0;
4981 bool use_mfp = false;
4983 struct ieee80211_ht_cap *ht_capa = NULL;
4984 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4986 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4989 if (!info->attrs[NL80211_ATTR_MAC] ||
4990 !info->attrs[NL80211_ATTR_SSID] ||
4991 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4994 if (!rdev->ops->assoc)
4997 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5001 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5003 chan = ieee80211_get_channel(&rdev->wiphy,
5004 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5005 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5008 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5009 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5011 if (info->attrs[NL80211_ATTR_IE]) {
5012 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5013 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5016 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5017 enum nl80211_mfp mfp =
5018 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5019 if (mfp == NL80211_MFP_REQUIRED)
5021 else if (mfp != NL80211_MFP_NO)
5025 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5026 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5028 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5029 flags |= ASSOC_REQ_DISABLE_HT;
5031 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5033 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5035 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5038 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5041 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5043 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5044 ssid, ssid_len, ie, ie_len, use_mfp,
5045 &crypto, flags, ht_capa,
5051 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5054 struct net_device *dev = info->user_ptr[1];
5055 const u8 *ie = NULL, *bssid;
5058 bool local_state_change;
5060 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5063 if (!info->attrs[NL80211_ATTR_MAC])
5066 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5069 if (!rdev->ops->deauth)
5072 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5073 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5076 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5078 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5079 if (reason_code == 0) {
5080 /* Reason Code 0 is reserved */
5084 if (info->attrs[NL80211_ATTR_IE]) {
5085 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5086 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5089 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5091 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5092 local_state_change);
5095 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5098 struct net_device *dev = info->user_ptr[1];
5099 const u8 *ie = NULL, *bssid;
5102 bool local_state_change;
5104 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5107 if (!info->attrs[NL80211_ATTR_MAC])
5110 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5113 if (!rdev->ops->disassoc)
5116 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5117 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5120 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5122 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5123 if (reason_code == 0) {
5124 /* Reason Code 0 is reserved */
5128 if (info->attrs[NL80211_ATTR_IE]) {
5129 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5130 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5133 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5135 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5136 local_state_change);
5140 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5141 int mcast_rate[IEEE80211_NUM_BANDS],
5144 struct wiphy *wiphy = &rdev->wiphy;
5148 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5149 struct ieee80211_supported_band *sband;
5151 sband = wiphy->bands[band];
5155 for (i = 0; i < sband->n_bitrates; i++) {
5156 if (sband->bitrates[i].bitrate == rateval) {
5157 mcast_rate[band] = i + 1;
5167 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5170 struct net_device *dev = info->user_ptr[1];
5171 struct cfg80211_ibss_params ibss;
5172 struct wiphy *wiphy;
5173 struct cfg80211_cached_keys *connkeys = NULL;
5176 memset(&ibss, 0, sizeof(ibss));
5178 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5181 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5182 !info->attrs[NL80211_ATTR_SSID] ||
5183 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5186 ibss.beacon_interval = 100;
5188 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5189 ibss.beacon_interval =
5190 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5191 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5195 if (!rdev->ops->join_ibss)
5198 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5201 wiphy = &rdev->wiphy;
5203 if (info->attrs[NL80211_ATTR_MAC]) {
5204 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5206 if (!is_valid_ether_addr(ibss.bssid))
5209 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5210 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5212 if (info->attrs[NL80211_ATTR_IE]) {
5213 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5214 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5217 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5218 enum nl80211_channel_type channel_type;
5220 if (!nl80211_valid_channel_type(info, &channel_type))
5223 if (channel_type != NL80211_CHAN_NO_HT &&
5224 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5227 ibss.channel_type = channel_type;
5229 ibss.channel_type = NL80211_CHAN_NO_HT;
5232 ibss.channel = rdev_freq_to_chan(rdev,
5233 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5235 if (!ibss.channel ||
5236 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5237 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5240 /* Both channels should be able to initiate communication */
5241 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5242 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5243 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5247 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5248 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5250 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5252 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5254 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5255 struct ieee80211_supported_band *sband =
5256 wiphy->bands[ibss.channel->band];
5258 err = ieee80211_get_ratemask(sband, rates, n_rates,
5264 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5265 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5266 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5269 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5270 connkeys = nl80211_parse_connkeys(rdev,
5271 info->attrs[NL80211_ATTR_KEYS]);
5272 if (IS_ERR(connkeys))
5273 return PTR_ERR(connkeys);
5277 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5279 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5285 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5287 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5288 struct net_device *dev = info->user_ptr[1];
5290 if (!rdev->ops->leave_ibss)
5293 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5296 return cfg80211_leave_ibss(rdev, dev, false);
5299 #ifdef CONFIG_NL80211_TESTMODE
5300 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5304 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5309 if (!info->attrs[NL80211_ATTR_TESTDATA])
5313 if (rdev->ops->testmode_cmd) {
5314 rdev->testmode_info = info;
5315 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5316 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5317 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5318 rdev->testmode_info = NULL;
5324 static int nl80211_testmode_dump(struct sk_buff *skb,
5325 struct netlink_callback *cb)
5327 struct cfg80211_registered_device *rdev;
5335 * 0 is a valid index, but not valid for args[0],
5336 * so we need to offset by 1.
5338 phy_idx = cb->args[0] - 1;
5340 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5341 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5346 mutex_lock(&cfg80211_mutex);
5347 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5348 nl80211_fam.attrbuf);
5350 mutex_unlock(&cfg80211_mutex);
5351 return PTR_ERR(rdev);
5353 phy_idx = rdev->wiphy_idx;
5355 mutex_unlock(&cfg80211_mutex);
5357 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5359 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5363 data = nla_data((void *)cb->args[1]);
5364 data_len = nla_len((void *)cb->args[1]);
5367 mutex_lock(&cfg80211_mutex);
5368 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5370 mutex_unlock(&cfg80211_mutex);
5373 cfg80211_lock_rdev(rdev);
5374 mutex_unlock(&cfg80211_mutex);
5376 if (!rdev->ops->testmode_dump) {
5382 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5383 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5384 NL80211_CMD_TESTMODE);
5385 struct nlattr *tmdata;
5387 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5388 genlmsg_cancel(skb, hdr);
5392 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5394 genlmsg_cancel(skb, hdr);
5397 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5399 nla_nest_end(skb, tmdata);
5401 if (err == -ENOBUFS || err == -ENOENT) {
5402 genlmsg_cancel(skb, hdr);
5405 genlmsg_cancel(skb, hdr);
5409 genlmsg_end(skb, hdr);
5414 cb->args[0] = phy_idx + 1;
5416 cfg80211_unlock_rdev(rdev);
5420 static struct sk_buff *
5421 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5422 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5424 struct sk_buff *skb;
5426 struct nlattr *data;
5428 skb = nlmsg_new(approxlen + 100, gfp);
5432 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5438 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5439 goto nla_put_failure;
5440 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5442 ((void **)skb->cb)[0] = rdev;
5443 ((void **)skb->cb)[1] = hdr;
5444 ((void **)skb->cb)[2] = data;
5453 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5456 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5458 if (WARN_ON(!rdev->testmode_info))
5461 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5462 rdev->testmode_info->snd_pid,
5463 rdev->testmode_info->snd_seq,
5466 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5468 int cfg80211_testmode_reply(struct sk_buff *skb)
5470 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5471 void *hdr = ((void **)skb->cb)[1];
5472 struct nlattr *data = ((void **)skb->cb)[2];
5474 if (WARN_ON(!rdev->testmode_info)) {
5479 nla_nest_end(skb, data);
5480 genlmsg_end(skb, hdr);
5481 return genlmsg_reply(skb, rdev->testmode_info);
5483 EXPORT_SYMBOL(cfg80211_testmode_reply);
5485 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5486 int approxlen, gfp_t gfp)
5488 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5490 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5492 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5494 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5496 void *hdr = ((void **)skb->cb)[1];
5497 struct nlattr *data = ((void **)skb->cb)[2];
5499 nla_nest_end(skb, data);
5500 genlmsg_end(skb, hdr);
5501 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5503 EXPORT_SYMBOL(cfg80211_testmode_event);
5506 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5509 struct net_device *dev = info->user_ptr[1];
5510 struct cfg80211_connect_params connect;
5511 struct wiphy *wiphy;
5512 struct cfg80211_cached_keys *connkeys = NULL;
5515 memset(&connect, 0, sizeof(connect));
5517 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5520 if (!info->attrs[NL80211_ATTR_SSID] ||
5521 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5524 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5526 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5527 if (!nl80211_valid_auth_type(connect.auth_type))
5530 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5532 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5534 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5535 NL80211_MAX_NR_CIPHER_SUITES);
5539 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5540 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5543 wiphy = &rdev->wiphy;
5545 connect.bg_scan_period = -1;
5546 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5547 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5548 connect.bg_scan_period =
5549 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5552 if (info->attrs[NL80211_ATTR_MAC])
5553 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5554 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5555 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5557 if (info->attrs[NL80211_ATTR_IE]) {
5558 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5559 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5562 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5564 ieee80211_get_channel(wiphy,
5565 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5566 if (!connect.channel ||
5567 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5571 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5572 connkeys = nl80211_parse_connkeys(rdev,
5573 info->attrs[NL80211_ATTR_KEYS]);
5574 if (IS_ERR(connkeys))
5575 return PTR_ERR(connkeys);
5578 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5579 connect.flags |= ASSOC_REQ_DISABLE_HT;
5581 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5582 memcpy(&connect.ht_capa_mask,
5583 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5584 sizeof(connect.ht_capa_mask));
5586 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5587 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5589 memcpy(&connect.ht_capa,
5590 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5591 sizeof(connect.ht_capa));
5594 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5600 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5603 struct net_device *dev = info->user_ptr[1];
5606 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5607 reason = WLAN_REASON_DEAUTH_LEAVING;
5609 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5615 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5618 return cfg80211_disconnect(rdev, dev, reason, true);
5621 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5628 if (!info->attrs[NL80211_ATTR_PID])
5631 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5633 net = get_net_ns_by_pid(pid);
5635 return PTR_ERR(net);
5639 /* check if anything to do */
5640 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5641 err = cfg80211_switch_netns(rdev, net);
5647 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5650 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5651 struct cfg80211_pmksa *pmksa) = NULL;
5652 struct net_device *dev = info->user_ptr[1];
5653 struct cfg80211_pmksa pmksa;
5655 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5657 if (!info->attrs[NL80211_ATTR_MAC])
5660 if (!info->attrs[NL80211_ATTR_PMKID])
5663 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5664 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5667 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5670 switch (info->genlhdr->cmd) {
5671 case NL80211_CMD_SET_PMKSA:
5672 rdev_ops = rdev->ops->set_pmksa;
5674 case NL80211_CMD_DEL_PMKSA:
5675 rdev_ops = rdev->ops->del_pmksa;
5685 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5688 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5691 struct net_device *dev = info->user_ptr[1];
5693 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5694 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5697 if (!rdev->ops->flush_pmksa)
5700 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5703 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5706 struct net_device *dev = info->user_ptr[1];
5707 u8 action_code, dialog_token;
5711 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5712 !rdev->ops->tdls_mgmt)
5715 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5716 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5717 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5718 !info->attrs[NL80211_ATTR_IE] ||
5719 !info->attrs[NL80211_ATTR_MAC])
5722 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5723 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5724 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5725 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5727 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5728 dialog_token, status_code,
5729 nla_data(info->attrs[NL80211_ATTR_IE]),
5730 nla_len(info->attrs[NL80211_ATTR_IE]));
5733 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5736 struct net_device *dev = info->user_ptr[1];
5737 enum nl80211_tdls_operation operation;
5740 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5741 !rdev->ops->tdls_oper)
5744 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5745 !info->attrs[NL80211_ATTR_MAC])
5748 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5749 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5751 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5754 static int nl80211_remain_on_channel(struct sk_buff *skb,
5755 struct genl_info *info)
5757 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5758 struct wireless_dev *wdev = info->user_ptr[1];
5759 struct ieee80211_channel *chan;
5760 struct sk_buff *msg;
5763 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5767 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5768 !info->attrs[NL80211_ATTR_DURATION])
5771 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5773 if (!rdev->ops->remain_on_channel ||
5774 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5778 * We should be on that channel for at least a minimum amount of
5779 * time (10ms) but no longer than the driver supports.
5781 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5782 duration > rdev->wiphy.max_remain_on_channel_duration)
5785 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5786 !nl80211_valid_channel_type(info, &channel_type))
5789 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5790 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5798 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5799 NL80211_CMD_REMAIN_ON_CHANNEL);
5806 err = rdev->ops->remain_on_channel(&rdev->wiphy, wdev, chan,
5807 channel_type, duration, &cookie);
5812 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5813 goto nla_put_failure;
5815 genlmsg_end(msg, hdr);
5817 return genlmsg_reply(msg, info);
5826 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5827 struct genl_info *info)
5829 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5830 struct wireless_dev *wdev = info->user_ptr[1];
5833 if (!info->attrs[NL80211_ATTR_COOKIE])
5836 if (!rdev->ops->cancel_remain_on_channel)
5839 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5841 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, wdev, cookie);
5844 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5845 u8 *rates, u8 rates_len)
5850 for (i = 0; i < rates_len; i++) {
5851 int rate = (rates[i] & 0x7f) * 5;
5853 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5854 struct ieee80211_rate *srate =
5855 &sband->bitrates[ridx];
5856 if (rate == srate->bitrate) {
5861 if (ridx == sband->n_bitrates)
5862 return 0; /* rate not found */
5868 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5869 u8 *rates, u8 rates_len,
5870 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5874 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5876 for (i = 0; i < rates_len; i++) {
5879 ridx = rates[i] / 8;
5880 rbit = BIT(rates[i] % 8);
5882 /* check validity */
5883 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5886 /* check availability */
5887 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5896 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5897 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5898 .len = NL80211_MAX_SUPP_RATES },
5899 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5900 .len = NL80211_MAX_SUPP_HT_RATES },
5903 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5904 struct genl_info *info)
5906 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5908 struct cfg80211_bitrate_mask mask;
5910 struct net_device *dev = info->user_ptr[1];
5911 struct nlattr *tx_rates;
5912 struct ieee80211_supported_band *sband;
5914 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5917 if (!rdev->ops->set_bitrate_mask)
5920 memset(&mask, 0, sizeof(mask));
5921 /* Default to all rates enabled */
5922 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5923 sband = rdev->wiphy.bands[i];
5924 mask.control[i].legacy =
5925 sband ? (1 << sband->n_bitrates) - 1 : 0;
5927 memcpy(mask.control[i].mcs,
5928 sband->ht_cap.mcs.rx_mask,
5929 sizeof(mask.control[i].mcs));
5931 memset(mask.control[i].mcs, 0,
5932 sizeof(mask.control[i].mcs));
5936 * The nested attribute uses enum nl80211_band as the index. This maps
5937 * directly to the enum ieee80211_band values used in cfg80211.
5939 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5940 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5942 enum ieee80211_band band = nla_type(tx_rates);
5943 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5945 sband = rdev->wiphy.bands[band];
5948 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5949 nla_len(tx_rates), nl80211_txattr_policy);
5950 if (tb[NL80211_TXRATE_LEGACY]) {
5951 mask.control[band].legacy = rateset_to_mask(
5953 nla_data(tb[NL80211_TXRATE_LEGACY]),
5954 nla_len(tb[NL80211_TXRATE_LEGACY]));
5955 if ((mask.control[band].legacy == 0) &&
5956 nla_len(tb[NL80211_TXRATE_LEGACY]))
5959 if (tb[NL80211_TXRATE_MCS]) {
5960 if (!ht_rateset_to_mask(
5962 nla_data(tb[NL80211_TXRATE_MCS]),
5963 nla_len(tb[NL80211_TXRATE_MCS]),
5964 mask.control[band].mcs))
5968 if (mask.control[band].legacy == 0) {
5969 /* don't allow empty legacy rates if HT
5970 * is not even supported. */
5971 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5974 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5975 if (mask.control[band].mcs[i])
5978 /* legacy and mcs rates may not be both empty */
5979 if (i == IEEE80211_HT_MCS_MASK_LEN)
5984 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5987 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5990 struct wireless_dev *wdev = info->user_ptr[1];
5991 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5993 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5996 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5997 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5999 switch (wdev->iftype) {
6000 case NL80211_IFTYPE_STATION:
6001 case NL80211_IFTYPE_ADHOC:
6002 case NL80211_IFTYPE_P2P_CLIENT:
6003 case NL80211_IFTYPE_AP:
6004 case NL80211_IFTYPE_AP_VLAN:
6005 case NL80211_IFTYPE_MESH_POINT:
6006 case NL80211_IFTYPE_P2P_GO:
6012 /* not much point in registering if we can't reply */
6013 if (!rdev->ops->mgmt_tx)
6016 return cfg80211_mlme_register_mgmt(wdev, info->snd_pid, frame_type,
6017 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6018 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6021 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6023 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6024 struct wireless_dev *wdev = info->user_ptr[1];
6025 struct ieee80211_channel *chan;
6026 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6027 bool channel_type_valid = false;
6032 struct sk_buff *msg = NULL;
6033 unsigned int wait = 0;
6034 bool offchan, no_cck, dont_wait_for_ack;
6036 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6038 if (!info->attrs[NL80211_ATTR_FRAME] ||
6039 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6042 if (!rdev->ops->mgmt_tx)
6045 switch (wdev->iftype) {
6046 case NL80211_IFTYPE_STATION:
6047 case NL80211_IFTYPE_ADHOC:
6048 case NL80211_IFTYPE_P2P_CLIENT:
6049 case NL80211_IFTYPE_AP:
6050 case NL80211_IFTYPE_AP_VLAN:
6051 case NL80211_IFTYPE_MESH_POINT:
6052 case NL80211_IFTYPE_P2P_GO:
6058 if (info->attrs[NL80211_ATTR_DURATION]) {
6059 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6061 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6064 * We should wait on the channel for at least a minimum amount
6065 * of time (10ms) but no longer than the driver supports.
6067 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6068 wait > rdev->wiphy.max_remain_on_channel_duration)
6073 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6074 if (!nl80211_valid_channel_type(info, &channel_type))
6076 channel_type_valid = true;
6079 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6081 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6084 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6086 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6087 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6091 if (!dont_wait_for_ack) {
6092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6096 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6105 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
6106 channel_type_valid, wait,
6107 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6108 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6109 no_cck, dont_wait_for_ack, &cookie);
6114 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6115 goto nla_put_failure;
6117 genlmsg_end(msg, hdr);
6118 return genlmsg_reply(msg, info);
6130 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6132 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6133 struct wireless_dev *wdev = info->user_ptr[1];
6136 if (!info->attrs[NL80211_ATTR_COOKIE])
6139 if (!rdev->ops->mgmt_tx_cancel_wait)
6142 switch (wdev->iftype) {
6143 case NL80211_IFTYPE_STATION:
6144 case NL80211_IFTYPE_ADHOC:
6145 case NL80211_IFTYPE_P2P_CLIENT:
6146 case NL80211_IFTYPE_AP:
6147 case NL80211_IFTYPE_AP_VLAN:
6148 case NL80211_IFTYPE_P2P_GO:
6154 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6156 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, wdev, cookie);
6159 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6162 struct wireless_dev *wdev;
6163 struct net_device *dev = info->user_ptr[1];
6168 if (!info->attrs[NL80211_ATTR_PS_STATE])
6171 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6173 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6176 wdev = dev->ieee80211_ptr;
6178 if (!rdev->ops->set_power_mgmt)
6181 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6183 if (state == wdev->ps)
6186 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6193 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6196 enum nl80211_ps_state ps_state;
6197 struct wireless_dev *wdev;
6198 struct net_device *dev = info->user_ptr[1];
6199 struct sk_buff *msg;
6203 wdev = dev->ieee80211_ptr;
6205 if (!rdev->ops->set_power_mgmt)
6208 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6212 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6213 NL80211_CMD_GET_POWER_SAVE);
6220 ps_state = NL80211_PS_ENABLED;
6222 ps_state = NL80211_PS_DISABLED;
6224 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6225 goto nla_put_failure;
6227 genlmsg_end(msg, hdr);
6228 return genlmsg_reply(msg, info);
6237 static struct nla_policy
6238 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6239 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6240 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6241 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6244 static int nl80211_set_cqm_rssi(struct genl_info *info,
6245 s32 threshold, u32 hysteresis)
6247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6248 struct wireless_dev *wdev;
6249 struct net_device *dev = info->user_ptr[1];
6254 wdev = dev->ieee80211_ptr;
6256 if (!rdev->ops->set_cqm_rssi_config)
6259 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6260 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6263 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6264 threshold, hysteresis);
6267 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6269 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6273 cqm = info->attrs[NL80211_ATTR_CQM];
6279 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6280 nl80211_attr_cqm_policy);
6284 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6285 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6288 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6289 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6290 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6298 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6301 struct net_device *dev = info->user_ptr[1];
6302 struct mesh_config cfg;
6303 struct mesh_setup setup;
6306 /* start with default */
6307 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6308 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6310 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6311 /* and parse parameters if given */
6312 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6317 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6318 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6321 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6322 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6324 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6325 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6326 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6329 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6330 /* parse additional setup parameters if given */
6331 err = nl80211_parse_mesh_setup(info, &setup);
6336 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6337 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6339 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6340 !nl80211_valid_channel_type(info, &channel_type))
6343 setup.channel = rdev_freq_to_chan(rdev,
6344 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6348 setup.channel_type = channel_type;
6350 /* cfg80211_join_mesh() will sort it out */
6351 setup.channel = NULL;
6354 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6357 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6360 struct net_device *dev = info->user_ptr[1];
6362 return cfg80211_leave_mesh(rdev, dev);
6366 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6368 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6369 struct sk_buff *msg;
6372 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6375 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6379 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6380 NL80211_CMD_GET_WOWLAN);
6382 goto nla_put_failure;
6385 struct nlattr *nl_wowlan;
6387 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6389 goto nla_put_failure;
6391 if ((rdev->wowlan->any &&
6392 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6393 (rdev->wowlan->disconnect &&
6394 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6395 (rdev->wowlan->magic_pkt &&
6396 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6397 (rdev->wowlan->gtk_rekey_failure &&
6398 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6399 (rdev->wowlan->eap_identity_req &&
6400 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6401 (rdev->wowlan->four_way_handshake &&
6402 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6403 (rdev->wowlan->rfkill_release &&
6404 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6405 goto nla_put_failure;
6406 if (rdev->wowlan->n_patterns) {
6407 struct nlattr *nl_pats, *nl_pat;
6410 nl_pats = nla_nest_start(msg,
6411 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6413 goto nla_put_failure;
6415 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6416 nl_pat = nla_nest_start(msg, i + 1);
6418 goto nla_put_failure;
6419 pat_len = rdev->wowlan->patterns[i].pattern_len;
6420 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6421 DIV_ROUND_UP(pat_len, 8),
6422 rdev->wowlan->patterns[i].mask) ||
6423 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6425 rdev->wowlan->patterns[i].pattern))
6426 goto nla_put_failure;
6427 nla_nest_end(msg, nl_pat);
6429 nla_nest_end(msg, nl_pats);
6432 nla_nest_end(msg, nl_wowlan);
6435 genlmsg_end(msg, hdr);
6436 return genlmsg_reply(msg, info);
6443 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6446 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6447 struct cfg80211_wowlan no_triggers = {};
6448 struct cfg80211_wowlan new_triggers = {};
6449 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6451 bool prev_enabled = rdev->wowlan;
6453 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6456 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6459 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6460 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6461 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6462 nl80211_wowlan_policy);
6466 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6467 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6469 new_triggers.any = true;
6472 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6473 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6475 new_triggers.disconnect = true;
6478 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6479 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6481 new_triggers.magic_pkt = true;
6484 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6487 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6488 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6490 new_triggers.gtk_rekey_failure = true;
6493 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6494 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6496 new_triggers.eap_identity_req = true;
6499 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6500 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6502 new_triggers.four_way_handshake = true;
6505 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6506 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6508 new_triggers.rfkill_release = true;
6511 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6514 int rem, pat_len, mask_len;
6515 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6517 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6520 if (n_patterns > wowlan->n_patterns)
6523 new_triggers.patterns = kcalloc(n_patterns,
6524 sizeof(new_triggers.patterns[0]),
6526 if (!new_triggers.patterns)
6529 new_triggers.n_patterns = n_patterns;
6532 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6534 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6535 nla_data(pat), nla_len(pat), NULL);
6537 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6538 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6540 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6541 mask_len = DIV_ROUND_UP(pat_len, 8);
6542 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6545 if (pat_len > wowlan->pattern_max_len ||
6546 pat_len < wowlan->pattern_min_len)
6549 new_triggers.patterns[i].mask =
6550 kmalloc(mask_len + pat_len, GFP_KERNEL);
6551 if (!new_triggers.patterns[i].mask) {
6555 new_triggers.patterns[i].pattern =
6556 new_triggers.patterns[i].mask + mask_len;
6557 memcpy(new_triggers.patterns[i].mask,
6558 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6560 new_triggers.patterns[i].pattern_len = pat_len;
6561 memcpy(new_triggers.patterns[i].pattern,
6562 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6568 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6569 struct cfg80211_wowlan *ntrig;
6570 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6576 cfg80211_rdev_free_wowlan(rdev);
6577 rdev->wowlan = ntrig;
6580 cfg80211_rdev_free_wowlan(rdev);
6581 rdev->wowlan = NULL;
6584 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6585 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6589 for (i = 0; i < new_triggers.n_patterns; i++)
6590 kfree(new_triggers.patterns[i].mask);
6591 kfree(new_triggers.patterns);
6596 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6598 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6599 struct net_device *dev = info->user_ptr[1];
6600 struct wireless_dev *wdev = dev->ieee80211_ptr;
6601 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6602 struct cfg80211_gtk_rekey_data rekey_data;
6605 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6608 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6609 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6610 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6611 nl80211_rekey_policy);
6615 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6617 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6619 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6622 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6624 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6626 memcpy(rekey_data.replay_ctr,
6627 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6628 NL80211_REPLAY_CTR_LEN);
6631 if (!wdev->current_bss) {
6636 if (!rdev->ops->set_rekey_data) {
6641 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6647 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6648 struct genl_info *info)
6650 struct net_device *dev = info->user_ptr[1];
6651 struct wireless_dev *wdev = dev->ieee80211_ptr;
6653 if (wdev->iftype != NL80211_IFTYPE_AP &&
6654 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6657 if (wdev->ap_unexpected_nlpid)
6660 wdev->ap_unexpected_nlpid = info->snd_pid;
6664 static int nl80211_probe_client(struct sk_buff *skb,
6665 struct genl_info *info)
6667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6668 struct net_device *dev = info->user_ptr[1];
6669 struct wireless_dev *wdev = dev->ieee80211_ptr;
6670 struct sk_buff *msg;
6676 if (wdev->iftype != NL80211_IFTYPE_AP &&
6677 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6680 if (!info->attrs[NL80211_ATTR_MAC])
6683 if (!rdev->ops->probe_client)
6686 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6690 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6691 NL80211_CMD_PROBE_CLIENT);
6698 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6700 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6704 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6705 goto nla_put_failure;
6707 genlmsg_end(msg, hdr);
6709 return genlmsg_reply(msg, info);
6718 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6722 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6725 if (rdev->ap_beacons_nlpid)
6728 rdev->ap_beacons_nlpid = info->snd_pid;
6733 #define NL80211_FLAG_NEED_WIPHY 0x01
6734 #define NL80211_FLAG_NEED_NETDEV 0x02
6735 #define NL80211_FLAG_NEED_RTNL 0x04
6736 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6737 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6738 NL80211_FLAG_CHECK_NETDEV_UP)
6739 #define NL80211_FLAG_NEED_WDEV 0x10
6740 /* If a netdev is associated, it must be UP */
6741 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6742 NL80211_FLAG_CHECK_NETDEV_UP)
6744 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6745 struct genl_info *info)
6747 struct cfg80211_registered_device *rdev;
6748 struct wireless_dev *wdev;
6749 struct net_device *dev;
6750 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6755 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6756 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6760 return PTR_ERR(rdev);
6762 info->user_ptr[0] = rdev;
6763 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
6764 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6765 mutex_lock(&cfg80211_mutex);
6766 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6769 mutex_unlock(&cfg80211_mutex);
6772 return PTR_ERR(wdev);
6776 rdev = wiphy_to_dev(wdev->wiphy);
6778 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6780 mutex_unlock(&cfg80211_mutex);
6786 info->user_ptr[1] = dev;
6788 info->user_ptr[1] = wdev;
6792 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6793 !netif_running(dev)) {
6794 mutex_unlock(&cfg80211_mutex);
6803 cfg80211_lock_rdev(rdev);
6805 mutex_unlock(&cfg80211_mutex);
6807 info->user_ptr[0] = rdev;
6813 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6814 struct genl_info *info)
6816 if (info->user_ptr[0])
6817 cfg80211_unlock_rdev(info->user_ptr[0]);
6818 if (info->user_ptr[1]) {
6819 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6820 struct wireless_dev *wdev = info->user_ptr[1];
6823 dev_put(wdev->netdev);
6825 dev_put(info->user_ptr[1]);
6828 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6832 static struct genl_ops nl80211_ops[] = {
6834 .cmd = NL80211_CMD_GET_WIPHY,
6835 .doit = nl80211_get_wiphy,
6836 .dumpit = nl80211_dump_wiphy,
6837 .policy = nl80211_policy,
6838 /* can be retrieved by unprivileged users */
6839 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6842 .cmd = NL80211_CMD_SET_WIPHY,
6843 .doit = nl80211_set_wiphy,
6844 .policy = nl80211_policy,
6845 .flags = GENL_ADMIN_PERM,
6846 .internal_flags = NL80211_FLAG_NEED_RTNL,
6849 .cmd = NL80211_CMD_GET_INTERFACE,
6850 .doit = nl80211_get_interface,
6851 .dumpit = nl80211_dump_interface,
6852 .policy = nl80211_policy,
6853 /* can be retrieved by unprivileged users */
6854 .internal_flags = NL80211_FLAG_NEED_WDEV,
6857 .cmd = NL80211_CMD_SET_INTERFACE,
6858 .doit = nl80211_set_interface,
6859 .policy = nl80211_policy,
6860 .flags = GENL_ADMIN_PERM,
6861 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6862 NL80211_FLAG_NEED_RTNL,
6865 .cmd = NL80211_CMD_NEW_INTERFACE,
6866 .doit = nl80211_new_interface,
6867 .policy = nl80211_policy,
6868 .flags = GENL_ADMIN_PERM,
6869 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6870 NL80211_FLAG_NEED_RTNL,
6873 .cmd = NL80211_CMD_DEL_INTERFACE,
6874 .doit = nl80211_del_interface,
6875 .policy = nl80211_policy,
6876 .flags = GENL_ADMIN_PERM,
6877 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6878 NL80211_FLAG_NEED_RTNL,
6881 .cmd = NL80211_CMD_GET_KEY,
6882 .doit = nl80211_get_key,
6883 .policy = nl80211_policy,
6884 .flags = GENL_ADMIN_PERM,
6885 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6886 NL80211_FLAG_NEED_RTNL,
6889 .cmd = NL80211_CMD_SET_KEY,
6890 .doit = nl80211_set_key,
6891 .policy = nl80211_policy,
6892 .flags = GENL_ADMIN_PERM,
6893 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6894 NL80211_FLAG_NEED_RTNL,
6897 .cmd = NL80211_CMD_NEW_KEY,
6898 .doit = nl80211_new_key,
6899 .policy = nl80211_policy,
6900 .flags = GENL_ADMIN_PERM,
6901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6902 NL80211_FLAG_NEED_RTNL,
6905 .cmd = NL80211_CMD_DEL_KEY,
6906 .doit = nl80211_del_key,
6907 .policy = nl80211_policy,
6908 .flags = GENL_ADMIN_PERM,
6909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6910 NL80211_FLAG_NEED_RTNL,
6913 .cmd = NL80211_CMD_SET_BEACON,
6914 .policy = nl80211_policy,
6915 .flags = GENL_ADMIN_PERM,
6916 .doit = nl80211_set_beacon,
6917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6918 NL80211_FLAG_NEED_RTNL,
6921 .cmd = NL80211_CMD_START_AP,
6922 .policy = nl80211_policy,
6923 .flags = GENL_ADMIN_PERM,
6924 .doit = nl80211_start_ap,
6925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6926 NL80211_FLAG_NEED_RTNL,
6929 .cmd = NL80211_CMD_STOP_AP,
6930 .policy = nl80211_policy,
6931 .flags = GENL_ADMIN_PERM,
6932 .doit = nl80211_stop_ap,
6933 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6934 NL80211_FLAG_NEED_RTNL,
6937 .cmd = NL80211_CMD_GET_STATION,
6938 .doit = nl80211_get_station,
6939 .dumpit = nl80211_dump_station,
6940 .policy = nl80211_policy,
6941 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6942 NL80211_FLAG_NEED_RTNL,
6945 .cmd = NL80211_CMD_SET_STATION,
6946 .doit = nl80211_set_station,
6947 .policy = nl80211_policy,
6948 .flags = GENL_ADMIN_PERM,
6949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6950 NL80211_FLAG_NEED_RTNL,
6953 .cmd = NL80211_CMD_NEW_STATION,
6954 .doit = nl80211_new_station,
6955 .policy = nl80211_policy,
6956 .flags = GENL_ADMIN_PERM,
6957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6958 NL80211_FLAG_NEED_RTNL,
6961 .cmd = NL80211_CMD_DEL_STATION,
6962 .doit = nl80211_del_station,
6963 .policy = nl80211_policy,
6964 .flags = GENL_ADMIN_PERM,
6965 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6966 NL80211_FLAG_NEED_RTNL,
6969 .cmd = NL80211_CMD_GET_MPATH,
6970 .doit = nl80211_get_mpath,
6971 .dumpit = nl80211_dump_mpath,
6972 .policy = nl80211_policy,
6973 .flags = GENL_ADMIN_PERM,
6974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6975 NL80211_FLAG_NEED_RTNL,
6978 .cmd = NL80211_CMD_SET_MPATH,
6979 .doit = nl80211_set_mpath,
6980 .policy = nl80211_policy,
6981 .flags = GENL_ADMIN_PERM,
6982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6983 NL80211_FLAG_NEED_RTNL,
6986 .cmd = NL80211_CMD_NEW_MPATH,
6987 .doit = nl80211_new_mpath,
6988 .policy = nl80211_policy,
6989 .flags = GENL_ADMIN_PERM,
6990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6991 NL80211_FLAG_NEED_RTNL,
6994 .cmd = NL80211_CMD_DEL_MPATH,
6995 .doit = nl80211_del_mpath,
6996 .policy = nl80211_policy,
6997 .flags = GENL_ADMIN_PERM,
6998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6999 NL80211_FLAG_NEED_RTNL,
7002 .cmd = NL80211_CMD_SET_BSS,
7003 .doit = nl80211_set_bss,
7004 .policy = nl80211_policy,
7005 .flags = GENL_ADMIN_PERM,
7006 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7007 NL80211_FLAG_NEED_RTNL,
7010 .cmd = NL80211_CMD_GET_REG,
7011 .doit = nl80211_get_reg,
7012 .policy = nl80211_policy,
7013 /* can be retrieved by unprivileged users */
7016 .cmd = NL80211_CMD_SET_REG,
7017 .doit = nl80211_set_reg,
7018 .policy = nl80211_policy,
7019 .flags = GENL_ADMIN_PERM,
7022 .cmd = NL80211_CMD_REQ_SET_REG,
7023 .doit = nl80211_req_set_reg,
7024 .policy = nl80211_policy,
7025 .flags = GENL_ADMIN_PERM,
7028 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7029 .doit = nl80211_get_mesh_config,
7030 .policy = nl80211_policy,
7031 /* can be retrieved by unprivileged users */
7032 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7033 NL80211_FLAG_NEED_RTNL,
7036 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7037 .doit = nl80211_update_mesh_config,
7038 .policy = nl80211_policy,
7039 .flags = GENL_ADMIN_PERM,
7040 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7041 NL80211_FLAG_NEED_RTNL,
7044 .cmd = NL80211_CMD_TRIGGER_SCAN,
7045 .doit = nl80211_trigger_scan,
7046 .policy = nl80211_policy,
7047 .flags = GENL_ADMIN_PERM,
7048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7049 NL80211_FLAG_NEED_RTNL,
7052 .cmd = NL80211_CMD_GET_SCAN,
7053 .policy = nl80211_policy,
7054 .dumpit = nl80211_dump_scan,
7057 .cmd = NL80211_CMD_START_SCHED_SCAN,
7058 .doit = nl80211_start_sched_scan,
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_STOP_SCHED_SCAN,
7066 .doit = nl80211_stop_sched_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_AUTHENTICATE,
7074 .doit = nl80211_authenticate,
7075 .policy = nl80211_policy,
7076 .flags = GENL_ADMIN_PERM,
7077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7078 NL80211_FLAG_NEED_RTNL,
7081 .cmd = NL80211_CMD_ASSOCIATE,
7082 .doit = nl80211_associate,
7083 .policy = nl80211_policy,
7084 .flags = GENL_ADMIN_PERM,
7085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7086 NL80211_FLAG_NEED_RTNL,
7089 .cmd = NL80211_CMD_DEAUTHENTICATE,
7090 .doit = nl80211_deauthenticate,
7091 .policy = nl80211_policy,
7092 .flags = GENL_ADMIN_PERM,
7093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7094 NL80211_FLAG_NEED_RTNL,
7097 .cmd = NL80211_CMD_DISASSOCIATE,
7098 .doit = nl80211_disassociate,
7099 .policy = nl80211_policy,
7100 .flags = GENL_ADMIN_PERM,
7101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7102 NL80211_FLAG_NEED_RTNL,
7105 .cmd = NL80211_CMD_JOIN_IBSS,
7106 .doit = nl80211_join_ibss,
7107 .policy = nl80211_policy,
7108 .flags = GENL_ADMIN_PERM,
7109 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7110 NL80211_FLAG_NEED_RTNL,
7113 .cmd = NL80211_CMD_LEAVE_IBSS,
7114 .doit = nl80211_leave_ibss,
7115 .policy = nl80211_policy,
7116 .flags = GENL_ADMIN_PERM,
7117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7118 NL80211_FLAG_NEED_RTNL,
7120 #ifdef CONFIG_NL80211_TESTMODE
7122 .cmd = NL80211_CMD_TESTMODE,
7123 .doit = nl80211_testmode_do,
7124 .dumpit = nl80211_testmode_dump,
7125 .policy = nl80211_policy,
7126 .flags = GENL_ADMIN_PERM,
7127 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7128 NL80211_FLAG_NEED_RTNL,
7132 .cmd = NL80211_CMD_CONNECT,
7133 .doit = nl80211_connect,
7134 .policy = nl80211_policy,
7135 .flags = GENL_ADMIN_PERM,
7136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7137 NL80211_FLAG_NEED_RTNL,
7140 .cmd = NL80211_CMD_DISCONNECT,
7141 .doit = nl80211_disconnect,
7142 .policy = nl80211_policy,
7143 .flags = GENL_ADMIN_PERM,
7144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7145 NL80211_FLAG_NEED_RTNL,
7148 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7149 .doit = nl80211_wiphy_netns,
7150 .policy = nl80211_policy,
7151 .flags = GENL_ADMIN_PERM,
7152 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7153 NL80211_FLAG_NEED_RTNL,
7156 .cmd = NL80211_CMD_GET_SURVEY,
7157 .policy = nl80211_policy,
7158 .dumpit = nl80211_dump_survey,
7161 .cmd = NL80211_CMD_SET_PMKSA,
7162 .doit = nl80211_setdel_pmksa,
7163 .policy = nl80211_policy,
7164 .flags = GENL_ADMIN_PERM,
7165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7166 NL80211_FLAG_NEED_RTNL,
7169 .cmd = NL80211_CMD_DEL_PMKSA,
7170 .doit = nl80211_setdel_pmksa,
7171 .policy = nl80211_policy,
7172 .flags = GENL_ADMIN_PERM,
7173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7174 NL80211_FLAG_NEED_RTNL,
7177 .cmd = NL80211_CMD_FLUSH_PMKSA,
7178 .doit = nl80211_flush_pmksa,
7179 .policy = nl80211_policy,
7180 .flags = GENL_ADMIN_PERM,
7181 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7182 NL80211_FLAG_NEED_RTNL,
7185 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7186 .doit = nl80211_remain_on_channel,
7187 .policy = nl80211_policy,
7188 .flags = GENL_ADMIN_PERM,
7189 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7190 NL80211_FLAG_NEED_RTNL,
7193 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7194 .doit = nl80211_cancel_remain_on_channel,
7195 .policy = nl80211_policy,
7196 .flags = GENL_ADMIN_PERM,
7197 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7198 NL80211_FLAG_NEED_RTNL,
7201 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7202 .doit = nl80211_set_tx_bitrate_mask,
7203 .policy = nl80211_policy,
7204 .flags = GENL_ADMIN_PERM,
7205 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7206 NL80211_FLAG_NEED_RTNL,
7209 .cmd = NL80211_CMD_REGISTER_FRAME,
7210 .doit = nl80211_register_mgmt,
7211 .policy = nl80211_policy,
7212 .flags = GENL_ADMIN_PERM,
7213 .internal_flags = NL80211_FLAG_NEED_WDEV |
7214 NL80211_FLAG_NEED_RTNL,
7217 .cmd = NL80211_CMD_FRAME,
7218 .doit = nl80211_tx_mgmt,
7219 .policy = nl80211_policy,
7220 .flags = GENL_ADMIN_PERM,
7221 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7222 NL80211_FLAG_NEED_RTNL,
7225 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7226 .doit = nl80211_tx_mgmt_cancel_wait,
7227 .policy = nl80211_policy,
7228 .flags = GENL_ADMIN_PERM,
7229 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7230 NL80211_FLAG_NEED_RTNL,
7233 .cmd = NL80211_CMD_SET_POWER_SAVE,
7234 .doit = nl80211_set_power_save,
7235 .policy = nl80211_policy,
7236 .flags = GENL_ADMIN_PERM,
7237 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7238 NL80211_FLAG_NEED_RTNL,
7241 .cmd = NL80211_CMD_GET_POWER_SAVE,
7242 .doit = nl80211_get_power_save,
7243 .policy = nl80211_policy,
7244 /* can be retrieved by unprivileged users */
7245 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7246 NL80211_FLAG_NEED_RTNL,
7249 .cmd = NL80211_CMD_SET_CQM,
7250 .doit = nl80211_set_cqm,
7251 .policy = nl80211_policy,
7252 .flags = GENL_ADMIN_PERM,
7253 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7254 NL80211_FLAG_NEED_RTNL,
7257 .cmd = NL80211_CMD_SET_CHANNEL,
7258 .doit = nl80211_set_channel,
7259 .policy = nl80211_policy,
7260 .flags = GENL_ADMIN_PERM,
7261 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7262 NL80211_FLAG_NEED_RTNL,
7265 .cmd = NL80211_CMD_SET_WDS_PEER,
7266 .doit = nl80211_set_wds_peer,
7267 .policy = nl80211_policy,
7268 .flags = GENL_ADMIN_PERM,
7269 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7270 NL80211_FLAG_NEED_RTNL,
7273 .cmd = NL80211_CMD_JOIN_MESH,
7274 .doit = nl80211_join_mesh,
7275 .policy = nl80211_policy,
7276 .flags = GENL_ADMIN_PERM,
7277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7278 NL80211_FLAG_NEED_RTNL,
7281 .cmd = NL80211_CMD_LEAVE_MESH,
7282 .doit = nl80211_leave_mesh,
7283 .policy = nl80211_policy,
7284 .flags = GENL_ADMIN_PERM,
7285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7286 NL80211_FLAG_NEED_RTNL,
7290 .cmd = NL80211_CMD_GET_WOWLAN,
7291 .doit = nl80211_get_wowlan,
7292 .policy = nl80211_policy,
7293 /* can be retrieved by unprivileged users */
7294 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7295 NL80211_FLAG_NEED_RTNL,
7298 .cmd = NL80211_CMD_SET_WOWLAN,
7299 .doit = nl80211_set_wowlan,
7300 .policy = nl80211_policy,
7301 .flags = GENL_ADMIN_PERM,
7302 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7303 NL80211_FLAG_NEED_RTNL,
7307 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7308 .doit = nl80211_set_rekey_data,
7309 .policy = nl80211_policy,
7310 .flags = GENL_ADMIN_PERM,
7311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7312 NL80211_FLAG_NEED_RTNL,
7315 .cmd = NL80211_CMD_TDLS_MGMT,
7316 .doit = nl80211_tdls_mgmt,
7317 .policy = nl80211_policy,
7318 .flags = GENL_ADMIN_PERM,
7319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7320 NL80211_FLAG_NEED_RTNL,
7323 .cmd = NL80211_CMD_TDLS_OPER,
7324 .doit = nl80211_tdls_oper,
7325 .policy = nl80211_policy,
7326 .flags = GENL_ADMIN_PERM,
7327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7328 NL80211_FLAG_NEED_RTNL,
7331 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7332 .doit = nl80211_register_unexpected_frame,
7333 .policy = nl80211_policy,
7334 .flags = GENL_ADMIN_PERM,
7335 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7336 NL80211_FLAG_NEED_RTNL,
7339 .cmd = NL80211_CMD_PROBE_CLIENT,
7340 .doit = nl80211_probe_client,
7341 .policy = nl80211_policy,
7342 .flags = GENL_ADMIN_PERM,
7343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7344 NL80211_FLAG_NEED_RTNL,
7347 .cmd = NL80211_CMD_REGISTER_BEACONS,
7348 .doit = nl80211_register_beacons,
7349 .policy = nl80211_policy,
7350 .flags = GENL_ADMIN_PERM,
7351 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7352 NL80211_FLAG_NEED_RTNL,
7355 .cmd = NL80211_CMD_SET_NOACK_MAP,
7356 .doit = nl80211_set_noack_map,
7357 .policy = nl80211_policy,
7358 .flags = GENL_ADMIN_PERM,
7359 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7360 NL80211_FLAG_NEED_RTNL,
7365 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7369 /* multicast groups */
7370 static struct genl_multicast_group nl80211_config_mcgrp = {
7373 static struct genl_multicast_group nl80211_scan_mcgrp = {
7376 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7377 .name = "regulatory",
7380 /* notification functions */
7382 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7384 struct sk_buff *msg;
7386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7390 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7395 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7396 nl80211_config_mcgrp.id, GFP_KERNEL);
7399 static int nl80211_add_scan_req(struct sk_buff *msg,
7400 struct cfg80211_registered_device *rdev)
7402 struct cfg80211_scan_request *req = rdev->scan_req;
7403 struct nlattr *nest;
7406 ASSERT_RDEV_LOCK(rdev);
7411 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7413 goto nla_put_failure;
7414 for (i = 0; i < req->n_ssids; i++) {
7415 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7416 goto nla_put_failure;
7418 nla_nest_end(msg, nest);
7420 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7422 goto nla_put_failure;
7423 for (i = 0; i < req->n_channels; i++) {
7424 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7425 goto nla_put_failure;
7427 nla_nest_end(msg, nest);
7430 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7431 goto nla_put_failure;
7438 static int nl80211_send_scan_msg(struct sk_buff *msg,
7439 struct cfg80211_registered_device *rdev,
7440 struct net_device *netdev,
7441 u32 pid, u32 seq, int flags,
7446 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7452 goto nla_put_failure;
7454 /* ignore errors and send incomplete event anyway */
7455 nl80211_add_scan_req(msg, rdev);
7457 return genlmsg_end(msg, hdr);
7460 genlmsg_cancel(msg, hdr);
7465 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7466 struct cfg80211_registered_device *rdev,
7467 struct net_device *netdev,
7468 u32 pid, u32 seq, int flags, u32 cmd)
7472 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7476 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7478 goto nla_put_failure;
7480 return genlmsg_end(msg, hdr);
7483 genlmsg_cancel(msg, hdr);
7487 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7488 struct net_device *netdev)
7490 struct sk_buff *msg;
7492 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7496 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7497 NL80211_CMD_TRIGGER_SCAN) < 0) {
7502 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7503 nl80211_scan_mcgrp.id, GFP_KERNEL);
7506 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7507 struct net_device *netdev)
7509 struct sk_buff *msg;
7511 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7515 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7516 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7521 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7522 nl80211_scan_mcgrp.id, GFP_KERNEL);
7525 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7526 struct net_device *netdev)
7528 struct sk_buff *msg;
7530 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7534 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7535 NL80211_CMD_SCAN_ABORTED) < 0) {
7540 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7541 nl80211_scan_mcgrp.id, GFP_KERNEL);
7544 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7545 struct net_device *netdev)
7547 struct sk_buff *msg;
7549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7553 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7554 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7559 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7560 nl80211_scan_mcgrp.id, GFP_KERNEL);
7563 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7564 struct net_device *netdev, u32 cmd)
7566 struct sk_buff *msg;
7568 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7572 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7577 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7578 nl80211_scan_mcgrp.id, GFP_KERNEL);
7582 * This can happen on global regulatory changes or device specific settings
7583 * based on custom world regulatory domains.
7585 void nl80211_send_reg_change_event(struct regulatory_request *request)
7587 struct sk_buff *msg;
7590 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7594 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7600 /* Userspace can always count this one always being set */
7601 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7602 goto nla_put_failure;
7604 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7605 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7606 NL80211_REGDOM_TYPE_WORLD))
7607 goto nla_put_failure;
7608 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7609 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7610 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7611 goto nla_put_failure;
7612 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7613 request->intersect) {
7614 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7615 NL80211_REGDOM_TYPE_INTERSECTION))
7616 goto nla_put_failure;
7618 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7619 NL80211_REGDOM_TYPE_COUNTRY) ||
7620 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7622 goto nla_put_failure;
7625 if (wiphy_idx_valid(request->wiphy_idx) &&
7626 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7627 goto nla_put_failure;
7629 genlmsg_end(msg, hdr);
7632 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7639 genlmsg_cancel(msg, hdr);
7643 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7644 struct net_device *netdev,
7645 const u8 *buf, size_t len,
7646 enum nl80211_commands cmd, gfp_t gfp)
7648 struct sk_buff *msg;
7651 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7655 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7661 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7662 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7663 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7664 goto nla_put_failure;
7666 genlmsg_end(msg, hdr);
7668 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7669 nl80211_mlme_mcgrp.id, gfp);
7673 genlmsg_cancel(msg, hdr);
7677 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7678 struct net_device *netdev, const u8 *buf,
7679 size_t len, gfp_t gfp)
7681 nl80211_send_mlme_event(rdev, netdev, buf, len,
7682 NL80211_CMD_AUTHENTICATE, gfp);
7685 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7686 struct net_device *netdev, const u8 *buf,
7687 size_t len, gfp_t gfp)
7689 nl80211_send_mlme_event(rdev, netdev, buf, len,
7690 NL80211_CMD_ASSOCIATE, gfp);
7693 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7694 struct net_device *netdev, const u8 *buf,
7695 size_t len, gfp_t gfp)
7697 nl80211_send_mlme_event(rdev, netdev, buf, len,
7698 NL80211_CMD_DEAUTHENTICATE, gfp);
7701 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7702 struct net_device *netdev, const u8 *buf,
7703 size_t len, gfp_t gfp)
7705 nl80211_send_mlme_event(rdev, netdev, buf, len,
7706 NL80211_CMD_DISASSOCIATE, gfp);
7709 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7710 struct net_device *netdev, const u8 *buf,
7711 size_t len, gfp_t gfp)
7713 nl80211_send_mlme_event(rdev, netdev, buf, len,
7714 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7717 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7718 struct net_device *netdev, const u8 *buf,
7719 size_t len, gfp_t gfp)
7721 nl80211_send_mlme_event(rdev, netdev, buf, len,
7722 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7725 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7726 struct net_device *netdev, int cmd,
7727 const u8 *addr, gfp_t gfp)
7729 struct sk_buff *msg;
7732 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7736 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7742 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7743 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7744 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7745 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7746 goto nla_put_failure;
7748 genlmsg_end(msg, hdr);
7750 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7751 nl80211_mlme_mcgrp.id, gfp);
7755 genlmsg_cancel(msg, hdr);
7759 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7760 struct net_device *netdev, const u8 *addr,
7763 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7767 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7768 struct net_device *netdev, const u8 *addr,
7771 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7775 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7776 struct net_device *netdev, const u8 *bssid,
7777 const u8 *req_ie, size_t req_ie_len,
7778 const u8 *resp_ie, size_t resp_ie_len,
7779 u16 status, gfp_t gfp)
7781 struct sk_buff *msg;
7784 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7788 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7794 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7795 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7796 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7797 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7799 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7801 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7802 goto nla_put_failure;
7804 genlmsg_end(msg, hdr);
7806 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7807 nl80211_mlme_mcgrp.id, gfp);
7811 genlmsg_cancel(msg, hdr);
7816 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7817 struct net_device *netdev, const u8 *bssid,
7818 const u8 *req_ie, size_t req_ie_len,
7819 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7821 struct sk_buff *msg;
7824 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7828 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7834 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7835 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7836 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7838 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7840 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7841 goto nla_put_failure;
7843 genlmsg_end(msg, hdr);
7845 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7846 nl80211_mlme_mcgrp.id, gfp);
7850 genlmsg_cancel(msg, hdr);
7855 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7856 struct net_device *netdev, u16 reason,
7857 const u8 *ie, size_t ie_len, bool from_ap)
7859 struct sk_buff *msg;
7862 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7866 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7872 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7873 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7874 (from_ap && reason &&
7875 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7877 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7878 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7879 goto nla_put_failure;
7881 genlmsg_end(msg, hdr);
7883 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7884 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7888 genlmsg_cancel(msg, hdr);
7893 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7894 struct net_device *netdev, const u8 *bssid,
7897 struct sk_buff *msg;
7900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7904 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7910 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7911 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7912 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7913 goto nla_put_failure;
7915 genlmsg_end(msg, hdr);
7917 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7918 nl80211_mlme_mcgrp.id, gfp);
7922 genlmsg_cancel(msg, hdr);
7926 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7927 struct net_device *netdev,
7928 const u8 *macaddr, const u8* ie, u8 ie_len,
7931 struct sk_buff *msg;
7934 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7938 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7944 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7945 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7946 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7948 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7949 goto nla_put_failure;
7951 genlmsg_end(msg, hdr);
7953 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7954 nl80211_mlme_mcgrp.id, gfp);
7958 genlmsg_cancel(msg, hdr);
7962 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7963 struct net_device *netdev, const u8 *addr,
7964 enum nl80211_key_type key_type, int key_id,
7965 const u8 *tsc, gfp_t gfp)
7967 struct sk_buff *msg;
7970 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7974 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7980 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7981 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7982 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7983 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7985 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7986 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7987 goto nla_put_failure;
7989 genlmsg_end(msg, hdr);
7991 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7992 nl80211_mlme_mcgrp.id, gfp);
7996 genlmsg_cancel(msg, hdr);
8000 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8001 struct ieee80211_channel *channel_before,
8002 struct ieee80211_channel *channel_after)
8004 struct sk_buff *msg;
8006 struct nlattr *nl_freq;
8008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8012 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8019 * Since we are applying the beacon hint to a wiphy we know its
8020 * wiphy_idx is valid
8022 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8023 goto nla_put_failure;
8026 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8028 goto nla_put_failure;
8029 if (nl80211_msg_put_channel(msg, channel_before))
8030 goto nla_put_failure;
8031 nla_nest_end(msg, nl_freq);
8034 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8036 goto nla_put_failure;
8037 if (nl80211_msg_put_channel(msg, channel_after))
8038 goto nla_put_failure;
8039 nla_nest_end(msg, nl_freq);
8041 genlmsg_end(msg, hdr);
8044 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8051 genlmsg_cancel(msg, hdr);
8055 static void nl80211_send_remain_on_chan_event(
8056 int cmd, struct cfg80211_registered_device *rdev,
8057 struct wireless_dev *wdev, u64 cookie,
8058 struct ieee80211_channel *chan,
8059 enum nl80211_channel_type channel_type,
8060 unsigned int duration, gfp_t gfp)
8062 struct sk_buff *msg;
8065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8069 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8076 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8077 wdev->netdev->ifindex)) ||
8078 nla_put_u32(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8079 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8080 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8081 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8082 goto nla_put_failure;
8084 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8085 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8086 goto nla_put_failure;
8088 genlmsg_end(msg, hdr);
8090 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8091 nl80211_mlme_mcgrp.id, gfp);
8095 genlmsg_cancel(msg, hdr);
8099 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8100 struct wireless_dev *wdev, u64 cookie,
8101 struct ieee80211_channel *chan,
8102 enum nl80211_channel_type channel_type,
8103 unsigned int duration, gfp_t gfp)
8105 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8106 rdev, wdev, cookie, chan,
8107 channel_type, duration, gfp);
8110 void nl80211_send_remain_on_channel_cancel(
8111 struct cfg80211_registered_device *rdev,
8112 struct wireless_dev *wdev,
8113 u64 cookie, struct ieee80211_channel *chan,
8114 enum nl80211_channel_type channel_type, gfp_t gfp)
8116 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8117 rdev, wdev, cookie, chan,
8118 channel_type, 0, gfp);
8121 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8122 struct net_device *dev, const u8 *mac_addr,
8123 struct station_info *sinfo, gfp_t gfp)
8125 struct sk_buff *msg;
8127 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8131 if (nl80211_send_station(msg, 0, 0, 0,
8132 rdev, dev, mac_addr, sinfo) < 0) {
8137 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8138 nl80211_mlme_mcgrp.id, gfp);
8141 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8142 struct net_device *dev, const u8 *mac_addr,
8145 struct sk_buff *msg;
8148 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8152 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8158 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8159 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8160 goto nla_put_failure;
8162 genlmsg_end(msg, hdr);
8164 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8165 nl80211_mlme_mcgrp.id, gfp);
8169 genlmsg_cancel(msg, hdr);
8173 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8174 const u8 *addr, gfp_t gfp)
8176 struct wireless_dev *wdev = dev->ieee80211_ptr;
8177 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8178 struct sk_buff *msg;
8181 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8186 msg = nlmsg_new(100, gfp);
8190 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8196 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8197 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8198 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8199 goto nla_put_failure;
8201 err = genlmsg_end(msg, hdr);
8207 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8211 genlmsg_cancel(msg, hdr);
8216 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8218 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8222 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8223 const u8 *addr, gfp_t gfp)
8225 return __nl80211_unexpected_frame(dev,
8226 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8230 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8231 struct wireless_dev *wdev, u32 nlpid,
8232 int freq, int sig_dbm,
8233 const u8 *buf, size_t len, gfp_t gfp)
8235 struct net_device *netdev = wdev->netdev;
8236 struct sk_buff *msg;
8239 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8243 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8249 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8250 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8251 netdev->ifindex)) ||
8252 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8254 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8255 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8256 goto nla_put_failure;
8258 genlmsg_end(msg, hdr);
8260 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8263 genlmsg_cancel(msg, hdr);
8268 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8269 struct wireless_dev *wdev, u64 cookie,
8270 const u8 *buf, size_t len, bool ack,
8273 struct net_device *netdev = wdev->netdev;
8274 struct sk_buff *msg;
8277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8281 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8287 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8288 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8289 netdev->ifindex)) ||
8290 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8291 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8292 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8293 goto nla_put_failure;
8295 genlmsg_end(msg, hdr);
8297 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8301 genlmsg_cancel(msg, hdr);
8306 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8307 struct net_device *netdev,
8308 enum nl80211_cqm_rssi_threshold_event rssi_event,
8311 struct sk_buff *msg;
8312 struct nlattr *pinfoattr;
8315 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8319 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8326 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8327 goto nla_put_failure;
8329 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8331 goto nla_put_failure;
8333 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8335 goto nla_put_failure;
8337 nla_nest_end(msg, pinfoattr);
8339 genlmsg_end(msg, hdr);
8341 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8342 nl80211_mlme_mcgrp.id, gfp);
8346 genlmsg_cancel(msg, hdr);
8350 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8351 struct net_device *netdev, const u8 *bssid,
8352 const u8 *replay_ctr, gfp_t gfp)
8354 struct sk_buff *msg;
8355 struct nlattr *rekey_attr;
8358 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8362 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8369 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8370 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8371 goto nla_put_failure;
8373 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8375 goto nla_put_failure;
8377 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8378 NL80211_REPLAY_CTR_LEN, replay_ctr))
8379 goto nla_put_failure;
8381 nla_nest_end(msg, rekey_attr);
8383 genlmsg_end(msg, hdr);
8385 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8386 nl80211_mlme_mcgrp.id, gfp);
8390 genlmsg_cancel(msg, hdr);
8394 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8395 struct net_device *netdev, int index,
8396 const u8 *bssid, bool preauth, gfp_t gfp)
8398 struct sk_buff *msg;
8399 struct nlattr *attr;
8402 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8406 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8412 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8413 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8414 goto nla_put_failure;
8416 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8418 goto nla_put_failure;
8420 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8421 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8423 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8424 goto nla_put_failure;
8426 nla_nest_end(msg, attr);
8428 genlmsg_end(msg, hdr);
8430 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8431 nl80211_mlme_mcgrp.id, gfp);
8435 genlmsg_cancel(msg, hdr);
8439 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8440 struct net_device *netdev, int freq,
8441 enum nl80211_channel_type type, gfp_t gfp)
8443 struct sk_buff *msg;
8446 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8456 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8457 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8458 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8459 goto nla_put_failure;
8461 genlmsg_end(msg, hdr);
8463 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8464 nl80211_mlme_mcgrp.id, gfp);
8468 genlmsg_cancel(msg, hdr);
8473 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8474 struct net_device *netdev, const u8 *peer,
8475 u32 num_packets, gfp_t gfp)
8477 struct sk_buff *msg;
8478 struct nlattr *pinfoattr;
8481 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8485 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8491 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8492 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8493 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8494 goto nla_put_failure;
8496 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8498 goto nla_put_failure;
8500 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8501 goto nla_put_failure;
8503 nla_nest_end(msg, pinfoattr);
8505 genlmsg_end(msg, hdr);
8507 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8508 nl80211_mlme_mcgrp.id, gfp);
8512 genlmsg_cancel(msg, hdr);
8516 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8517 u64 cookie, bool acked, gfp_t gfp)
8519 struct wireless_dev *wdev = dev->ieee80211_ptr;
8520 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8521 struct sk_buff *msg;
8525 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8529 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8535 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8536 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8537 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8538 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8539 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8540 goto nla_put_failure;
8542 err = genlmsg_end(msg, hdr);
8548 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8549 nl80211_mlme_mcgrp.id, gfp);
8553 genlmsg_cancel(msg, hdr);
8556 EXPORT_SYMBOL(cfg80211_probe_status);
8558 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8559 const u8 *frame, size_t len,
8560 int freq, int sig_dbm, gfp_t gfp)
8562 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8563 struct sk_buff *msg;
8565 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8570 msg = nlmsg_new(len + 100, gfp);
8574 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8580 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8582 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8584 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8585 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8586 goto nla_put_failure;
8588 genlmsg_end(msg, hdr);
8590 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8594 genlmsg_cancel(msg, hdr);
8597 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8599 static int nl80211_netlink_notify(struct notifier_block * nb,
8600 unsigned long state,
8603 struct netlink_notify *notify = _notify;
8604 struct cfg80211_registered_device *rdev;
8605 struct wireless_dev *wdev;
8607 if (state != NETLINK_URELEASE)
8612 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8613 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
8614 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8615 if (rdev->ap_beacons_nlpid == notify->pid)
8616 rdev->ap_beacons_nlpid = 0;
8624 static struct notifier_block nl80211_netlink_notifier = {
8625 .notifier_call = nl80211_netlink_notify,
8628 /* initialisation/exit functions */
8630 int nl80211_init(void)
8634 err = genl_register_family_with_ops(&nl80211_fam,
8635 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8639 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8643 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8647 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8651 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8655 #ifdef CONFIG_NL80211_TESTMODE
8656 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8661 err = netlink_register_notifier(&nl80211_netlink_notifier);
8667 genl_unregister_family(&nl80211_fam);
8671 void nl80211_exit(void)
8673 netlink_unregister_notifier(&nl80211_netlink_notifier);
8674 genl_unregister_family(&nl80211_fam);