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);
1732 static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
1733 struct cfg80211_registered_device *rdev,
1734 struct wireless_dev *wdev)
1736 struct net_device *dev = wdev->netdev;
1738 u64 wdev_id = (u64)wdev->identifier |
1739 ((u64)rdev->wiphy_idx << 32);
1741 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1746 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1747 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name) ||
1748 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dev->dev_addr)))
1749 goto nla_put_failure;
1751 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1752 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1753 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id) ||
1754 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1755 rdev->devlist_generation ^
1756 (cfg80211_rdev_list_generation << 2)))
1757 goto nla_put_failure;
1759 if (rdev->monitor_channel) {
1760 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1761 rdev->monitor_channel->center_freq) ||
1762 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1763 rdev->monitor_channel_type))
1764 goto nla_put_failure;
1767 return genlmsg_end(msg, hdr);
1770 genlmsg_cancel(msg, hdr);
1774 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1778 int wp_start = cb->args[0];
1779 int if_start = cb->args[1];
1780 struct cfg80211_registered_device *rdev;
1781 struct wireless_dev *wdev;
1783 mutex_lock(&cfg80211_mutex);
1784 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1785 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1787 if (wp_idx < wp_start) {
1793 mutex_lock(&rdev->devlist_mtx);
1794 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1795 if (if_idx < if_start) {
1799 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
1800 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1802 mutex_unlock(&rdev->devlist_mtx);
1807 mutex_unlock(&rdev->devlist_mtx);
1812 mutex_unlock(&cfg80211_mutex);
1814 cb->args[0] = wp_idx;
1815 cb->args[1] = if_idx;
1820 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1822 struct sk_buff *msg;
1823 struct cfg80211_registered_device *dev = info->user_ptr[0];
1824 struct wireless_dev *wdev = info->user_ptr[1];
1826 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1830 if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0,
1836 return genlmsg_reply(msg, info);
1839 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1840 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1841 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1842 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1843 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1844 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1847 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1849 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1857 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1858 nla, mntr_flags_policy))
1861 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1863 *mntrflags |= (1<<flag);
1868 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1869 struct net_device *netdev, u8 use_4addr,
1870 enum nl80211_iftype iftype)
1873 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1879 case NL80211_IFTYPE_AP_VLAN:
1880 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1883 case NL80211_IFTYPE_STATION:
1884 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1894 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1897 struct vif_params params;
1899 enum nl80211_iftype otype, ntype;
1900 struct net_device *dev = info->user_ptr[1];
1901 u32 _flags, *flags = NULL;
1902 bool change = false;
1904 memset(¶ms, 0, sizeof(params));
1906 otype = ntype = dev->ieee80211_ptr->iftype;
1908 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1909 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1912 if (ntype > NL80211_IFTYPE_MAX)
1916 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1917 struct wireless_dev *wdev = dev->ieee80211_ptr;
1919 if (ntype != NL80211_IFTYPE_MESH_POINT)
1921 if (netif_running(dev))
1925 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1926 IEEE80211_MAX_MESH_ID_LEN);
1927 wdev->mesh_id_up_len =
1928 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1929 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1930 wdev->mesh_id_up_len);
1934 if (info->attrs[NL80211_ATTR_4ADDR]) {
1935 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1937 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1941 params.use_4addr = -1;
1944 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1945 if (ntype != NL80211_IFTYPE_MONITOR)
1947 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1957 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1961 if (!err && params.use_4addr != -1)
1962 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1967 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1970 struct vif_params params;
1971 struct net_device *dev;
1973 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1976 memset(¶ms, 0, sizeof(params));
1978 if (!info->attrs[NL80211_ATTR_IFNAME])
1981 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1982 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1983 if (type > NL80211_IFTYPE_MAX)
1987 if (!rdev->ops->add_virtual_intf ||
1988 !(rdev->wiphy.interface_modes & (1 << type)))
1991 if (info->attrs[NL80211_ATTR_4ADDR]) {
1992 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1993 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
1998 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
1999 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2001 dev = rdev->ops->add_virtual_intf(&rdev->wiphy,
2002 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2003 type, err ? NULL : &flags, ¶ms);
2005 return PTR_ERR(dev);
2007 if (type == NL80211_IFTYPE_MESH_POINT &&
2008 info->attrs[NL80211_ATTR_MESH_ID]) {
2009 struct wireless_dev *wdev = dev->ieee80211_ptr;
2012 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2013 IEEE80211_MAX_MESH_ID_LEN);
2014 wdev->mesh_id_up_len =
2015 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2016 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2017 wdev->mesh_id_up_len);
2024 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2027 struct net_device *dev = info->user_ptr[1];
2029 if (!rdev->ops->del_virtual_intf)
2032 return rdev->ops->del_virtual_intf(&rdev->wiphy, dev);
2035 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2038 struct net_device *dev = info->user_ptr[1];
2041 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2044 if (!rdev->ops->set_noack_map)
2047 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2049 return rdev->ops->set_noack_map(&rdev->wiphy, dev, noack_map);
2052 struct get_key_cookie {
2053 struct sk_buff *msg;
2058 static void get_key_callback(void *c, struct key_params *params)
2061 struct get_key_cookie *cookie = c;
2064 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2065 params->key_len, params->key)) ||
2067 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2068 params->seq_len, params->seq)) ||
2070 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2072 goto nla_put_failure;
2074 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2076 goto nla_put_failure;
2079 nla_put(cookie->msg, NL80211_KEY_DATA,
2080 params->key_len, params->key)) ||
2082 nla_put(cookie->msg, NL80211_KEY_SEQ,
2083 params->seq_len, params->seq)) ||
2085 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2087 goto nla_put_failure;
2089 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2090 goto nla_put_failure;
2092 nla_nest_end(cookie->msg, key);
2099 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2103 struct net_device *dev = info->user_ptr[1];
2105 const u8 *mac_addr = NULL;
2107 struct get_key_cookie cookie = {
2111 struct sk_buff *msg;
2113 if (info->attrs[NL80211_ATTR_KEY_IDX])
2114 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2119 if (info->attrs[NL80211_ATTR_MAC])
2120 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2122 pairwise = !!mac_addr;
2123 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2124 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2125 if (kt >= NUM_NL80211_KEYTYPES)
2127 if (kt != NL80211_KEYTYPE_GROUP &&
2128 kt != NL80211_KEYTYPE_PAIRWISE)
2130 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2133 if (!rdev->ops->get_key)
2136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2140 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
2141 NL80211_CMD_NEW_KEY);
2143 return PTR_ERR(hdr);
2146 cookie.idx = key_idx;
2148 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2149 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2150 goto nla_put_failure;
2152 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2153 goto nla_put_failure;
2155 if (pairwise && mac_addr &&
2156 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2159 err = rdev->ops->get_key(&rdev->wiphy, dev, key_idx, pairwise,
2160 mac_addr, &cookie, get_key_callback);
2166 goto nla_put_failure;
2168 genlmsg_end(msg, hdr);
2169 return genlmsg_reply(msg, info);
2178 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2180 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2181 struct key_parse key;
2183 struct net_device *dev = info->user_ptr[1];
2185 err = nl80211_parse_key(info, &key);
2192 /* only support setting default key */
2193 if (!key.def && !key.defmgmt)
2196 wdev_lock(dev->ieee80211_ptr);
2199 if (!rdev->ops->set_default_key) {
2204 err = nl80211_key_allowed(dev->ieee80211_ptr);
2208 err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
2209 key.def_uni, key.def_multi);
2214 #ifdef CONFIG_CFG80211_WEXT
2215 dev->ieee80211_ptr->wext.default_key = key.idx;
2218 if (key.def_uni || !key.def_multi) {
2223 if (!rdev->ops->set_default_mgmt_key) {
2228 err = nl80211_key_allowed(dev->ieee80211_ptr);
2232 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
2237 #ifdef CONFIG_CFG80211_WEXT
2238 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2243 wdev_unlock(dev->ieee80211_ptr);
2248 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2252 struct net_device *dev = info->user_ptr[1];
2253 struct key_parse key;
2254 const u8 *mac_addr = NULL;
2256 err = nl80211_parse_key(info, &key);
2263 if (info->attrs[NL80211_ATTR_MAC])
2264 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2266 if (key.type == -1) {
2268 key.type = NL80211_KEYTYPE_PAIRWISE;
2270 key.type = NL80211_KEYTYPE_GROUP;
2274 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2275 key.type != NL80211_KEYTYPE_GROUP)
2278 if (!rdev->ops->add_key)
2281 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2282 key.type == NL80211_KEYTYPE_PAIRWISE,
2286 wdev_lock(dev->ieee80211_ptr);
2287 err = nl80211_key_allowed(dev->ieee80211_ptr);
2289 err = rdev->ops->add_key(&rdev->wiphy, dev, key.idx,
2290 key.type == NL80211_KEYTYPE_PAIRWISE,
2292 wdev_unlock(dev->ieee80211_ptr);
2297 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2301 struct net_device *dev = info->user_ptr[1];
2302 u8 *mac_addr = NULL;
2303 struct key_parse key;
2305 err = nl80211_parse_key(info, &key);
2309 if (info->attrs[NL80211_ATTR_MAC])
2310 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2312 if (key.type == -1) {
2314 key.type = NL80211_KEYTYPE_PAIRWISE;
2316 key.type = NL80211_KEYTYPE_GROUP;
2320 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2321 key.type != NL80211_KEYTYPE_GROUP)
2324 if (!rdev->ops->del_key)
2327 wdev_lock(dev->ieee80211_ptr);
2328 err = nl80211_key_allowed(dev->ieee80211_ptr);
2330 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2331 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2335 err = rdev->ops->del_key(&rdev->wiphy, dev, key.idx,
2336 key.type == NL80211_KEYTYPE_PAIRWISE,
2339 #ifdef CONFIG_CFG80211_WEXT
2341 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2342 dev->ieee80211_ptr->wext.default_key = -1;
2343 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2344 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2347 wdev_unlock(dev->ieee80211_ptr);
2352 static int nl80211_parse_beacon(struct genl_info *info,
2353 struct cfg80211_beacon_data *bcn)
2355 bool haveinfo = false;
2357 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2358 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2359 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2360 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2363 memset(bcn, 0, sizeof(*bcn));
2365 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2366 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2367 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2373 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2374 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2376 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2383 if (info->attrs[NL80211_ATTR_IE]) {
2384 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2385 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2388 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2389 bcn->proberesp_ies =
2390 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2391 bcn->proberesp_ies_len =
2392 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2395 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2396 bcn->assocresp_ies =
2397 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2398 bcn->assocresp_ies_len =
2399 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2402 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2404 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2405 bcn->probe_resp_len =
2406 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2412 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2413 struct cfg80211_ap_settings *params)
2415 struct wireless_dev *wdev;
2418 mutex_lock(&rdev->devlist_mtx);
2420 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2421 if (wdev->iftype != NL80211_IFTYPE_AP &&
2422 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2425 if (!wdev->preset_chan)
2428 params->channel = wdev->preset_chan;
2429 params->channel_type = wdev->preset_chantype;
2434 mutex_unlock(&rdev->devlist_mtx);
2439 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2442 struct net_device *dev = info->user_ptr[1];
2443 struct wireless_dev *wdev = dev->ieee80211_ptr;
2444 struct cfg80211_ap_settings params;
2447 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2448 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2451 if (!rdev->ops->start_ap)
2454 if (wdev->beacon_interval)
2457 memset(¶ms, 0, sizeof(params));
2459 /* these are required for START_AP */
2460 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2461 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2462 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2465 err = nl80211_parse_beacon(info, ¶ms.beacon);
2469 params.beacon_interval =
2470 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2471 params.dtim_period =
2472 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2474 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2479 * In theory, some of these attributes should be required here
2480 * but since they were not used when the command was originally
2481 * added, keep them optional for old user space programs to let
2482 * them continue to work with drivers that do not need the
2483 * additional information -- drivers must check!
2485 if (info->attrs[NL80211_ATTR_SSID]) {
2486 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2488 nla_len(info->attrs[NL80211_ATTR_SSID]);
2489 if (params.ssid_len == 0 ||
2490 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2494 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2495 params.hidden_ssid = nla_get_u32(
2496 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2497 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2498 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2499 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2503 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2505 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2506 params.auth_type = nla_get_u32(
2507 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2508 if (!nl80211_valid_auth_type(params.auth_type))
2511 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2513 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2514 NL80211_MAX_NR_CIPHER_SUITES);
2518 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2519 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2521 params.inactivity_timeout = nla_get_u16(
2522 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2525 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2526 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2528 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2529 !nl80211_valid_channel_type(info, &channel_type))
2532 params.channel = rdev_freq_to_chan(rdev,
2533 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2535 if (!params.channel)
2537 params.channel_type = channel_type;
2538 } else if (wdev->preset_chan) {
2539 params.channel = wdev->preset_chan;
2540 params.channel_type = wdev->preset_chantype;
2541 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2544 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2545 params.channel_type))
2548 mutex_lock(&rdev->devlist_mtx);
2549 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2551 mutex_unlock(&rdev->devlist_mtx);
2556 err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms);
2558 wdev->preset_chan = params.channel;
2559 wdev->preset_chantype = params.channel_type;
2560 wdev->beacon_interval = params.beacon_interval;
2561 wdev->channel = params.channel;
2566 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2569 struct net_device *dev = info->user_ptr[1];
2570 struct wireless_dev *wdev = dev->ieee80211_ptr;
2571 struct cfg80211_beacon_data params;
2574 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2575 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2578 if (!rdev->ops->change_beacon)
2581 if (!wdev->beacon_interval)
2584 err = nl80211_parse_beacon(info, ¶ms);
2588 return rdev->ops->change_beacon(&rdev->wiphy, dev, ¶ms);
2591 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2593 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2594 struct net_device *dev = info->user_ptr[1];
2596 return cfg80211_stop_ap(rdev, dev);
2599 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2600 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2601 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2602 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2603 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2604 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2605 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2608 static int parse_station_flags(struct genl_info *info,
2609 enum nl80211_iftype iftype,
2610 struct station_parameters *params)
2612 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2617 * Try parsing the new attribute first so userspace
2618 * can specify both for older kernels.
2620 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2622 struct nl80211_sta_flag_update *sta_flags;
2624 sta_flags = nla_data(nla);
2625 params->sta_flags_mask = sta_flags->mask;
2626 params->sta_flags_set = sta_flags->set;
2627 if ((params->sta_flags_mask |
2628 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2633 /* if present, parse the old attribute */
2635 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2639 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2640 nla, sta_flags_policy))
2644 * Only allow certain flags for interface types so that
2645 * other attributes are silently ignored. Remember that
2646 * this is backward compatibility code with old userspace
2647 * and shouldn't be hit in other cases anyway.
2650 case NL80211_IFTYPE_AP:
2651 case NL80211_IFTYPE_AP_VLAN:
2652 case NL80211_IFTYPE_P2P_GO:
2653 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2654 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2655 BIT(NL80211_STA_FLAG_WME) |
2656 BIT(NL80211_STA_FLAG_MFP);
2658 case NL80211_IFTYPE_P2P_CLIENT:
2659 case NL80211_IFTYPE_STATION:
2660 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2661 BIT(NL80211_STA_FLAG_TDLS_PEER);
2663 case NL80211_IFTYPE_MESH_POINT:
2664 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2665 BIT(NL80211_STA_FLAG_MFP) |
2666 BIT(NL80211_STA_FLAG_AUTHORIZED);
2671 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2673 params->sta_flags_set |= (1<<flag);
2675 /* no longer support new API additions in old API */
2676 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2684 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2687 struct nlattr *rate;
2691 rate = nla_nest_start(msg, attr);
2693 goto nla_put_failure;
2695 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2696 bitrate = cfg80211_calculate_bitrate(info);
2697 /* report 16-bit bitrate only if we can */
2698 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2700 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2701 (bitrate_compat > 0 &&
2702 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
2703 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2704 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2705 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2706 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2707 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2708 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2709 goto nla_put_failure;
2711 nla_nest_end(msg, rate);
2718 static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
2720 struct cfg80211_registered_device *rdev,
2721 struct net_device *dev,
2722 const u8 *mac_addr, struct station_info *sinfo)
2725 struct nlattr *sinfoattr, *bss_param;
2727 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
2731 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2732 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2733 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2734 goto nla_put_failure;
2736 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2738 goto nla_put_failure;
2739 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2740 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2741 sinfo->connected_time))
2742 goto nla_put_failure;
2743 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2744 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2745 sinfo->inactive_time))
2746 goto nla_put_failure;
2747 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2748 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2750 goto nla_put_failure;
2751 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2752 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2754 goto nla_put_failure;
2755 if ((sinfo->filled & STATION_INFO_LLID) &&
2756 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2757 goto nla_put_failure;
2758 if ((sinfo->filled & STATION_INFO_PLID) &&
2759 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2760 goto nla_put_failure;
2761 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2762 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2763 sinfo->plink_state))
2764 goto nla_put_failure;
2765 switch (rdev->wiphy.signal_type) {
2766 case CFG80211_SIGNAL_TYPE_MBM:
2767 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2768 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2770 goto nla_put_failure;
2771 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2772 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2774 goto nla_put_failure;
2779 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2780 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2781 NL80211_STA_INFO_TX_BITRATE))
2782 goto nla_put_failure;
2784 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2785 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2786 NL80211_STA_INFO_RX_BITRATE))
2787 goto nla_put_failure;
2789 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2790 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2792 goto nla_put_failure;
2793 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2794 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2796 goto nla_put_failure;
2797 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2798 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2800 goto nla_put_failure;
2801 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2802 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2804 goto nla_put_failure;
2805 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2806 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2807 sinfo->beacon_loss_count))
2808 goto nla_put_failure;
2809 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2810 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2812 goto nla_put_failure;
2814 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2815 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2816 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2817 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2818 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2819 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2820 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2821 sinfo->bss_param.dtim_period) ||
2822 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2823 sinfo->bss_param.beacon_interval))
2824 goto nla_put_failure;
2826 nla_nest_end(msg, bss_param);
2828 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2829 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2830 sizeof(struct nl80211_sta_flag_update),
2832 goto nla_put_failure;
2833 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2834 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2836 goto nla_put_failure;
2837 nla_nest_end(msg, sinfoattr);
2839 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2840 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2841 sinfo->assoc_req_ies))
2842 goto nla_put_failure;
2844 return genlmsg_end(msg, hdr);
2847 genlmsg_cancel(msg, hdr);
2851 static int nl80211_dump_station(struct sk_buff *skb,
2852 struct netlink_callback *cb)
2854 struct station_info sinfo;
2855 struct cfg80211_registered_device *dev;
2856 struct net_device *netdev;
2857 u8 mac_addr[ETH_ALEN];
2858 int sta_idx = cb->args[1];
2861 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2865 if (!dev->ops->dump_station) {
2871 memset(&sinfo, 0, sizeof(sinfo));
2872 err = dev->ops->dump_station(&dev->wiphy, netdev, sta_idx,
2879 if (nl80211_send_station(skb,
2880 NETLINK_CB(cb->skb).pid,
2881 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2882 dev, netdev, mac_addr,
2891 cb->args[1] = sta_idx;
2894 nl80211_finish_netdev_dump(dev);
2899 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2902 struct net_device *dev = info->user_ptr[1];
2903 struct station_info sinfo;
2904 struct sk_buff *msg;
2905 u8 *mac_addr = NULL;
2908 memset(&sinfo, 0, sizeof(sinfo));
2910 if (!info->attrs[NL80211_ATTR_MAC])
2913 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2915 if (!rdev->ops->get_station)
2918 err = rdev->ops->get_station(&rdev->wiphy, dev, mac_addr, &sinfo);
2922 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2926 if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
2927 rdev, dev, mac_addr, &sinfo) < 0) {
2932 return genlmsg_reply(msg, info);
2936 * Get vlan interface making sure it is running and on the right wiphy.
2938 static struct net_device *get_vlan(struct genl_info *info,
2939 struct cfg80211_registered_device *rdev)
2941 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
2942 struct net_device *v;
2948 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
2950 return ERR_PTR(-ENODEV);
2952 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
2957 if (!netif_running(v)) {
2965 return ERR_PTR(ret);
2968 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
2970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2972 struct net_device *dev = info->user_ptr[1];
2973 struct station_parameters params;
2974 u8 *mac_addr = NULL;
2976 memset(¶ms, 0, sizeof(params));
2978 params.listen_interval = -1;
2979 params.plink_state = -1;
2981 if (info->attrs[NL80211_ATTR_STA_AID])
2984 if (!info->attrs[NL80211_ATTR_MAC])
2987 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2989 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
2990 params.supported_rates =
2991 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2992 params.supported_rates_len =
2993 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
2996 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
2997 params.listen_interval =
2998 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3000 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3002 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3004 if (!rdev->ops->change_station)
3007 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3010 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3011 params.plink_action =
3012 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3014 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3015 params.plink_state =
3016 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3018 switch (dev->ieee80211_ptr->iftype) {
3019 case NL80211_IFTYPE_AP:
3020 case NL80211_IFTYPE_AP_VLAN:
3021 case NL80211_IFTYPE_P2P_GO:
3022 /* disallow mesh-specific things */
3023 if (params.plink_action)
3026 /* TDLS can't be set, ... */
3027 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3030 * ... but don't bother the driver with it. This works around
3031 * a hostapd/wpa_supplicant issue -- it always includes the
3032 * TLDS_PEER flag in the mask even for AP mode.
3034 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3036 /* accept only the listed bits */
3037 if (params.sta_flags_mask &
3038 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3039 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3040 BIT(NL80211_STA_FLAG_WME) |
3041 BIT(NL80211_STA_FLAG_MFP)))
3044 /* must be last in here for error handling */
3045 params.vlan = get_vlan(info, rdev);
3046 if (IS_ERR(params.vlan))
3047 return PTR_ERR(params.vlan);
3049 case NL80211_IFTYPE_P2P_CLIENT:
3050 case NL80211_IFTYPE_STATION:
3052 * Don't allow userspace to change the TDLS_PEER flag,
3053 * but silently ignore attempts to change it since we
3054 * don't have state here to verify that it doesn't try
3055 * to change the flag.
3057 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3059 case NL80211_IFTYPE_ADHOC:
3060 /* disallow things sta doesn't support */
3061 if (params.plink_action)
3065 if (params.listen_interval >= 0)
3067 /* reject any changes other than AUTHORIZED */
3068 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3071 case NL80211_IFTYPE_MESH_POINT:
3072 /* disallow things mesh doesn't support */
3077 if (params.listen_interval >= 0)
3080 * No special handling for TDLS here -- the userspace
3081 * mesh code doesn't have this bug.
3083 if (params.sta_flags_mask &
3084 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3085 BIT(NL80211_STA_FLAG_MFP) |
3086 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3093 /* be aware of params.vlan when changing code here */
3095 err = rdev->ops->change_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3098 dev_put(params.vlan);
3103 static struct nla_policy
3104 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3105 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3106 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3109 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3113 struct net_device *dev = info->user_ptr[1];
3114 struct station_parameters params;
3115 u8 *mac_addr = NULL;
3117 memset(¶ms, 0, sizeof(params));
3119 if (!info->attrs[NL80211_ATTR_MAC])
3122 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3125 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3128 if (!info->attrs[NL80211_ATTR_STA_AID])
3131 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3132 params.supported_rates =
3133 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3134 params.supported_rates_len =
3135 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3136 params.listen_interval =
3137 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3139 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3140 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3143 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3145 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3147 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3148 params.plink_action =
3149 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3151 if (!rdev->ops->add_station)
3154 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3157 switch (dev->ieee80211_ptr->iftype) {
3158 case NL80211_IFTYPE_AP:
3159 case NL80211_IFTYPE_AP_VLAN:
3160 case NL80211_IFTYPE_P2P_GO:
3161 /* parse WME attributes if sta is WME capable */
3162 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3163 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3164 info->attrs[NL80211_ATTR_STA_WME]) {
3165 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3168 nla = info->attrs[NL80211_ATTR_STA_WME];
3169 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3170 nl80211_sta_wme_policy);
3174 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3175 params.uapsd_queues =
3176 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3177 if (params.uapsd_queues &
3178 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3181 if (tb[NL80211_STA_WME_MAX_SP])
3183 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3186 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3189 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3191 /* TDLS peers cannot be added */
3192 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3194 /* but don't bother the driver with it */
3195 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3197 /* must be last in here for error handling */
3198 params.vlan = get_vlan(info, rdev);
3199 if (IS_ERR(params.vlan))
3200 return PTR_ERR(params.vlan);
3202 case NL80211_IFTYPE_MESH_POINT:
3203 /* TDLS peers cannot be added */
3204 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3207 case NL80211_IFTYPE_STATION:
3208 /* Only TDLS peers can be added */
3209 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3211 /* Can only add if TDLS ... */
3212 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3214 /* ... with external setup is supported */
3215 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3222 /* be aware of params.vlan when changing code here */
3224 err = rdev->ops->add_station(&rdev->wiphy, dev, mac_addr, ¶ms);
3227 dev_put(params.vlan);
3231 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3234 struct net_device *dev = info->user_ptr[1];
3235 u8 *mac_addr = NULL;
3237 if (info->attrs[NL80211_ATTR_MAC])
3238 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3240 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3241 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3242 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3243 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3246 if (!rdev->ops->del_station)
3249 return rdev->ops->del_station(&rdev->wiphy, dev, mac_addr);
3252 static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq,
3253 int flags, struct net_device *dev,
3254 u8 *dst, u8 *next_hop,
3255 struct mpath_info *pinfo)
3258 struct nlattr *pinfoattr;
3260 hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
3264 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3265 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3266 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3267 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3268 goto nla_put_failure;
3270 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3272 goto nla_put_failure;
3273 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3274 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3276 goto nla_put_failure;
3277 if (((pinfo->filled & MPATH_INFO_SN) &&
3278 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3279 ((pinfo->filled & MPATH_INFO_METRIC) &&
3280 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3282 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3283 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3285 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3286 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3288 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3289 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3290 pinfo->discovery_timeout)) ||
3291 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3292 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3293 pinfo->discovery_retries)))
3294 goto nla_put_failure;
3296 nla_nest_end(msg, pinfoattr);
3298 return genlmsg_end(msg, hdr);
3301 genlmsg_cancel(msg, hdr);
3305 static int nl80211_dump_mpath(struct sk_buff *skb,
3306 struct netlink_callback *cb)
3308 struct mpath_info pinfo;
3309 struct cfg80211_registered_device *dev;
3310 struct net_device *netdev;
3312 u8 next_hop[ETH_ALEN];
3313 int path_idx = cb->args[1];
3316 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3320 if (!dev->ops->dump_mpath) {
3325 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3331 err = dev->ops->dump_mpath(&dev->wiphy, netdev, path_idx,
3332 dst, next_hop, &pinfo);
3338 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).pid,
3339 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3340 netdev, dst, next_hop,
3349 cb->args[1] = path_idx;
3352 nl80211_finish_netdev_dump(dev);
3356 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3360 struct net_device *dev = info->user_ptr[1];
3361 struct mpath_info pinfo;
3362 struct sk_buff *msg;
3364 u8 next_hop[ETH_ALEN];
3366 memset(&pinfo, 0, sizeof(pinfo));
3368 if (!info->attrs[NL80211_ATTR_MAC])
3371 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3373 if (!rdev->ops->get_mpath)
3376 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3379 err = rdev->ops->get_mpath(&rdev->wiphy, dev, dst, next_hop, &pinfo);
3383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3387 if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0,
3388 dev, dst, next_hop, &pinfo) < 0) {
3393 return genlmsg_reply(msg, info);
3396 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3398 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3399 struct net_device *dev = info->user_ptr[1];
3401 u8 *next_hop = NULL;
3403 if (!info->attrs[NL80211_ATTR_MAC])
3406 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3409 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3410 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3412 if (!rdev->ops->change_mpath)
3415 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3418 return rdev->ops->change_mpath(&rdev->wiphy, dev, dst, next_hop);
3421 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3423 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3424 struct net_device *dev = info->user_ptr[1];
3426 u8 *next_hop = NULL;
3428 if (!info->attrs[NL80211_ATTR_MAC])
3431 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3434 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3435 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3437 if (!rdev->ops->add_mpath)
3440 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3443 return rdev->ops->add_mpath(&rdev->wiphy, dev, dst, next_hop);
3446 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3449 struct net_device *dev = info->user_ptr[1];
3452 if (info->attrs[NL80211_ATTR_MAC])
3453 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3455 if (!rdev->ops->del_mpath)
3458 return rdev->ops->del_mpath(&rdev->wiphy, dev, dst);
3461 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3463 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3464 struct net_device *dev = info->user_ptr[1];
3465 struct bss_parameters params;
3467 memset(¶ms, 0, sizeof(params));
3468 /* default to not changing parameters */
3469 params.use_cts_prot = -1;
3470 params.use_short_preamble = -1;
3471 params.use_short_slot_time = -1;
3472 params.ap_isolate = -1;
3473 params.ht_opmode = -1;
3475 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3476 params.use_cts_prot =
3477 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3478 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3479 params.use_short_preamble =
3480 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3481 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3482 params.use_short_slot_time =
3483 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3484 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3485 params.basic_rates =
3486 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3487 params.basic_rates_len =
3488 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3490 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3491 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3492 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3494 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3496 if (!rdev->ops->change_bss)
3499 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3500 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3503 return rdev->ops->change_bss(&rdev->wiphy, dev, ¶ms);
3506 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3507 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3508 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3509 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3510 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3511 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3512 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3515 static int parse_reg_rule(struct nlattr *tb[],
3516 struct ieee80211_reg_rule *reg_rule)
3518 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3519 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3521 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3523 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3525 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3527 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3529 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3532 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3534 freq_range->start_freq_khz =
3535 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3536 freq_range->end_freq_khz =
3537 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3538 freq_range->max_bandwidth_khz =
3539 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3541 power_rule->max_eirp =
3542 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3544 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3545 power_rule->max_antenna_gain =
3546 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3551 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3557 * You should only get this when cfg80211 hasn't yet initialized
3558 * completely when built-in to the kernel right between the time
3559 * window between nl80211_init() and regulatory_init(), if that is
3562 mutex_lock(&cfg80211_mutex);
3563 if (unlikely(!cfg80211_regdomain)) {
3564 mutex_unlock(&cfg80211_mutex);
3565 return -EINPROGRESS;
3567 mutex_unlock(&cfg80211_mutex);
3569 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3572 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3574 r = regulatory_hint_user(data);
3579 static int nl80211_get_mesh_config(struct sk_buff *skb,
3580 struct genl_info *info)
3582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3583 struct net_device *dev = info->user_ptr[1];
3584 struct wireless_dev *wdev = dev->ieee80211_ptr;
3585 struct mesh_config cur_params;
3588 struct nlattr *pinfoattr;
3589 struct sk_buff *msg;
3591 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3594 if (!rdev->ops->get_mesh_config)
3598 /* If not connected, get default parameters */
3599 if (!wdev->mesh_id_len)
3600 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3602 err = rdev->ops->get_mesh_config(&rdev->wiphy, dev,
3609 /* Draw up a netlink message to send back */
3610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3613 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3614 NL80211_CMD_GET_MESH_CONFIG);
3617 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3619 goto nla_put_failure;
3620 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3621 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3622 cur_params.dot11MeshRetryTimeout) ||
3623 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3624 cur_params.dot11MeshConfirmTimeout) ||
3625 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3626 cur_params.dot11MeshHoldingTimeout) ||
3627 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3628 cur_params.dot11MeshMaxPeerLinks) ||
3629 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3630 cur_params.dot11MeshMaxRetries) ||
3631 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3632 cur_params.dot11MeshTTL) ||
3633 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3634 cur_params.element_ttl) ||
3635 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3636 cur_params.auto_open_plinks) ||
3637 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3638 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3639 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3640 cur_params.dot11MeshHWMPmaxPREQretries) ||
3641 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3642 cur_params.path_refresh_time) ||
3643 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3644 cur_params.min_discovery_timeout) ||
3645 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3646 cur_params.dot11MeshHWMPactivePathTimeout) ||
3647 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3648 cur_params.dot11MeshHWMPpreqMinInterval) ||
3649 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3650 cur_params.dot11MeshHWMPperrMinInterval) ||
3651 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3652 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3653 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3654 cur_params.dot11MeshHWMPRootMode) ||
3655 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3656 cur_params.dot11MeshHWMPRannInterval) ||
3657 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3658 cur_params.dot11MeshGateAnnouncementProtocol) ||
3659 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3660 cur_params.dot11MeshForwarding) ||
3661 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3662 cur_params.rssi_threshold) ||
3663 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3664 cur_params.ht_opmode) ||
3665 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3666 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3667 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3668 cur_params.dot11MeshHWMProotInterval) ||
3669 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3670 cur_params.dot11MeshHWMPconfirmationInterval))
3671 goto nla_put_failure;
3672 nla_nest_end(msg, pinfoattr);
3673 genlmsg_end(msg, hdr);
3674 return genlmsg_reply(msg, info);
3677 genlmsg_cancel(msg, hdr);
3683 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3684 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3685 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3686 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3687 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3688 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3689 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3690 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3691 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3692 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3693 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3694 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3695 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3696 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3697 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3698 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3699 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3700 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3701 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3702 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3703 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3704 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3705 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3706 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3707 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3708 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3711 static const struct nla_policy
3712 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3713 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3714 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3715 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3716 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3717 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3718 .len = IEEE80211_MAX_DATA_LEN },
3719 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3722 static int nl80211_parse_mesh_config(struct genl_info *info,
3723 struct mesh_config *cfg,
3726 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3729 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3731 if (table[attr_num]) {\
3732 cfg->param = nla_fn(table[attr_num]); \
3733 mask |= (1 << (attr_num - 1)); \
3738 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3740 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3741 info->attrs[NL80211_ATTR_MESH_CONFIG],
3742 nl80211_meshconf_params_policy))
3745 /* This makes sure that there aren't more than 32 mesh config
3746 * parameters (otherwise our bitfield scheme would not work.) */
3747 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3749 /* Fill in the params struct */
3750 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3751 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3753 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3754 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3756 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3757 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3759 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3760 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3762 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3763 mask, NL80211_MESHCONF_MAX_RETRIES,
3765 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3766 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3767 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3768 mask, NL80211_MESHCONF_ELEMENT_TTL,
3770 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3771 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3773 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3774 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3776 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3777 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3779 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3780 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3782 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3783 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3785 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3786 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3788 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3789 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3791 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3792 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3795 dot11MeshHWMPnetDiameterTraversalTime, mask,
3796 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3798 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3799 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3800 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3801 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3803 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3804 dot11MeshGateAnnouncementProtocol, mask,
3805 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3807 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3808 mask, NL80211_MESHCONF_FORWARDING,
3810 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3811 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3813 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3814 mask, NL80211_MESHCONF_HT_OPMODE,
3816 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3818 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3820 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3821 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3823 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3824 dot11MeshHWMPconfirmationInterval, mask,
3825 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3832 #undef FILL_IN_MESH_PARAM_IF_SET
3835 static int nl80211_parse_mesh_setup(struct genl_info *info,
3836 struct mesh_setup *setup)
3838 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3840 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3842 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3843 info->attrs[NL80211_ATTR_MESH_SETUP],
3844 nl80211_mesh_setup_params_policy))
3847 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3848 setup->sync_method =
3849 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3850 IEEE80211_SYNC_METHOD_VENDOR :
3851 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3853 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3854 setup->path_sel_proto =
3855 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3856 IEEE80211_PATH_PROTOCOL_VENDOR :
3857 IEEE80211_PATH_PROTOCOL_HWMP;
3859 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3860 setup->path_metric =
3861 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3862 IEEE80211_PATH_METRIC_VENDOR :
3863 IEEE80211_PATH_METRIC_AIRTIME;
3866 if (tb[NL80211_MESH_SETUP_IE]) {
3867 struct nlattr *ieattr =
3868 tb[NL80211_MESH_SETUP_IE];
3869 if (!is_valid_ie_attr(ieattr))
3871 setup->ie = nla_data(ieattr);
3872 setup->ie_len = nla_len(ieattr);
3874 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3875 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3880 static int nl80211_update_mesh_config(struct sk_buff *skb,
3881 struct genl_info *info)
3883 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3884 struct net_device *dev = info->user_ptr[1];
3885 struct wireless_dev *wdev = dev->ieee80211_ptr;
3886 struct mesh_config cfg;
3890 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3893 if (!rdev->ops->update_mesh_config)
3896 err = nl80211_parse_mesh_config(info, &cfg, &mask);
3901 if (!wdev->mesh_id_len)
3905 err = rdev->ops->update_mesh_config(&rdev->wiphy, dev,
3913 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
3915 struct sk_buff *msg;
3917 struct nlattr *nl_reg_rules;
3921 mutex_lock(&cfg80211_mutex);
3923 if (!cfg80211_regdomain)
3926 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3932 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
3933 NL80211_CMD_GET_REG);
3937 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
3938 cfg80211_regdomain->alpha2) ||
3939 (cfg80211_regdomain->dfs_region &&
3940 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
3941 cfg80211_regdomain->dfs_region)))
3942 goto nla_put_failure;
3944 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
3946 goto nla_put_failure;
3948 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
3949 struct nlattr *nl_reg_rule;
3950 const struct ieee80211_reg_rule *reg_rule;
3951 const struct ieee80211_freq_range *freq_range;
3952 const struct ieee80211_power_rule *power_rule;
3954 reg_rule = &cfg80211_regdomain->reg_rules[i];
3955 freq_range = ®_rule->freq_range;
3956 power_rule = ®_rule->power_rule;
3958 nl_reg_rule = nla_nest_start(msg, i);
3960 goto nla_put_failure;
3962 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
3964 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
3965 freq_range->start_freq_khz) ||
3966 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
3967 freq_range->end_freq_khz) ||
3968 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
3969 freq_range->max_bandwidth_khz) ||
3970 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
3971 power_rule->max_antenna_gain) ||
3972 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
3973 power_rule->max_eirp))
3974 goto nla_put_failure;
3976 nla_nest_end(msg, nl_reg_rule);
3979 nla_nest_end(msg, nl_reg_rules);
3981 genlmsg_end(msg, hdr);
3982 err = genlmsg_reply(msg, info);
3986 genlmsg_cancel(msg, hdr);
3991 mutex_unlock(&cfg80211_mutex);
3995 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
3997 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
3998 struct nlattr *nl_reg_rule;
3999 char *alpha2 = NULL;
4000 int rem_reg_rules = 0, r = 0;
4001 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4003 struct ieee80211_regdomain *rd = NULL;
4005 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4008 if (!info->attrs[NL80211_ATTR_REG_RULES])
4011 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4013 if (info->attrs[NL80211_ATTR_DFS_REGION])
4014 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4016 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4019 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4023 mutex_lock(&cfg80211_mutex);
4025 if (!reg_is_valid_request(alpha2)) {
4030 size_of_regd = sizeof(struct ieee80211_regdomain) +
4031 (num_rules * sizeof(struct ieee80211_reg_rule));
4033 rd = kzalloc(size_of_regd, GFP_KERNEL);
4039 rd->n_reg_rules = num_rules;
4040 rd->alpha2[0] = alpha2[0];
4041 rd->alpha2[1] = alpha2[1];
4044 * Disable DFS master mode if the DFS region was
4045 * not supported or known on this kernel.
4047 if (reg_supported_dfs_region(dfs_region))
4048 rd->dfs_region = dfs_region;
4050 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4052 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4053 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4055 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4061 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4067 BUG_ON(rule_idx != num_rules);
4071 mutex_unlock(&cfg80211_mutex);
4076 mutex_unlock(&cfg80211_mutex);
4081 static int validate_scan_freqs(struct nlattr *freqs)
4083 struct nlattr *attr1, *attr2;
4084 int n_channels = 0, tmp1, tmp2;
4086 nla_for_each_nested(attr1, freqs, tmp1) {
4089 * Some hardware has a limited channel list for
4090 * scanning, and it is pretty much nonsensical
4091 * to scan for a channel twice, so disallow that
4092 * and don't require drivers to check that the
4093 * channel list they get isn't longer than what
4094 * they can scan, as long as they can scan all
4095 * the channels they registered at once.
4097 nla_for_each_nested(attr2, freqs, tmp2)
4098 if (attr1 != attr2 &&
4099 nla_get_u32(attr1) == nla_get_u32(attr2))
4106 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4109 struct net_device *dev = info->user_ptr[1];
4110 struct cfg80211_scan_request *request;
4111 struct nlattr *attr;
4112 struct wiphy *wiphy;
4113 int err, tmp, n_ssids = 0, n_channels, i;
4116 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4119 wiphy = &rdev->wiphy;
4121 if (!rdev->ops->scan)
4127 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4128 n_channels = validate_scan_freqs(
4129 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4133 enum ieee80211_band band;
4136 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4137 if (wiphy->bands[band])
4138 n_channels += wiphy->bands[band]->n_channels;
4141 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4142 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4145 if (n_ssids > wiphy->max_scan_ssids)
4148 if (info->attrs[NL80211_ATTR_IE])
4149 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4153 if (ie_len > wiphy->max_scan_ie_len)
4156 request = kzalloc(sizeof(*request)
4157 + sizeof(*request->ssids) * n_ssids
4158 + sizeof(*request->channels) * n_channels
4159 + ie_len, GFP_KERNEL);
4164 request->ssids = (void *)&request->channels[n_channels];
4165 request->n_ssids = n_ssids;
4168 request->ie = (void *)(request->ssids + n_ssids);
4170 request->ie = (void *)(request->channels + n_channels);
4174 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4175 /* user specified, bail out if channel not found */
4176 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4177 struct ieee80211_channel *chan;
4179 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4186 /* ignore disabled channels */
4187 if (chan->flags & IEEE80211_CHAN_DISABLED)
4190 request->channels[i] = chan;
4194 enum ieee80211_band band;
4197 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4199 if (!wiphy->bands[band])
4201 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4202 struct ieee80211_channel *chan;
4204 chan = &wiphy->bands[band]->channels[j];
4206 if (chan->flags & IEEE80211_CHAN_DISABLED)
4209 request->channels[i] = chan;
4220 request->n_channels = i;
4223 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4224 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4225 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4229 request->ssids[i].ssid_len = nla_len(attr);
4230 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4235 if (info->attrs[NL80211_ATTR_IE]) {
4236 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4237 memcpy((void *)request->ie,
4238 nla_data(info->attrs[NL80211_ATTR_IE]),
4242 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4243 if (wiphy->bands[i])
4245 (1 << wiphy->bands[i]->n_bitrates) - 1;
4247 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4248 nla_for_each_nested(attr,
4249 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4251 enum ieee80211_band band = nla_type(attr);
4253 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4257 err = ieee80211_get_ratemask(wiphy->bands[band],
4260 &request->rates[band]);
4267 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4270 request->wiphy = &rdev->wiphy;
4272 rdev->scan_req = request;
4273 err = rdev->ops->scan(&rdev->wiphy, dev, request);
4276 nl80211_send_scan_start(rdev, dev);
4280 rdev->scan_req = NULL;
4287 static int nl80211_start_sched_scan(struct sk_buff *skb,
4288 struct genl_info *info)
4290 struct cfg80211_sched_scan_request *request;
4291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4292 struct net_device *dev = info->user_ptr[1];
4293 struct nlattr *attr;
4294 struct wiphy *wiphy;
4295 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4297 enum ieee80211_band band;
4299 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4301 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4302 !rdev->ops->sched_scan_start)
4305 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4308 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4311 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4315 wiphy = &rdev->wiphy;
4317 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4318 n_channels = validate_scan_freqs(
4319 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4325 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4326 if (wiphy->bands[band])
4327 n_channels += wiphy->bands[band]->n_channels;
4330 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4331 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4335 if (n_ssids > wiphy->max_sched_scan_ssids)
4338 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4339 nla_for_each_nested(attr,
4340 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4344 if (n_match_sets > wiphy->max_match_sets)
4347 if (info->attrs[NL80211_ATTR_IE])
4348 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4352 if (ie_len > wiphy->max_sched_scan_ie_len)
4355 mutex_lock(&rdev->sched_scan_mtx);
4357 if (rdev->sched_scan_req) {
4362 request = kzalloc(sizeof(*request)
4363 + sizeof(*request->ssids) * n_ssids
4364 + sizeof(*request->match_sets) * n_match_sets
4365 + sizeof(*request->channels) * n_channels
4366 + ie_len, GFP_KERNEL);
4373 request->ssids = (void *)&request->channels[n_channels];
4374 request->n_ssids = n_ssids;
4377 request->ie = (void *)(request->ssids + n_ssids);
4379 request->ie = (void *)(request->channels + n_channels);
4384 request->match_sets = (void *)(request->ie + ie_len);
4385 else if (request->ssids)
4386 request->match_sets =
4387 (void *)(request->ssids + n_ssids);
4389 request->match_sets =
4390 (void *)(request->channels + n_channels);
4392 request->n_match_sets = n_match_sets;
4395 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4396 /* user specified, bail out if channel not found */
4397 nla_for_each_nested(attr,
4398 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4400 struct ieee80211_channel *chan;
4402 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4409 /* ignore disabled channels */
4410 if (chan->flags & IEEE80211_CHAN_DISABLED)
4413 request->channels[i] = chan;
4418 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4420 if (!wiphy->bands[band])
4422 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4423 struct ieee80211_channel *chan;
4425 chan = &wiphy->bands[band]->channels[j];
4427 if (chan->flags & IEEE80211_CHAN_DISABLED)
4430 request->channels[i] = chan;
4441 request->n_channels = i;
4444 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4445 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4447 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4451 request->ssids[i].ssid_len = nla_len(attr);
4452 memcpy(request->ssids[i].ssid, nla_data(attr),
4459 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4460 nla_for_each_nested(attr,
4461 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4463 struct nlattr *ssid, *rssi;
4465 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4466 nla_data(attr), nla_len(attr),
4467 nl80211_match_policy);
4468 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4470 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4474 memcpy(request->match_sets[i].ssid.ssid,
4475 nla_data(ssid), nla_len(ssid));
4476 request->match_sets[i].ssid.ssid_len =
4479 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4481 request->rssi_thold = nla_get_u32(rssi);
4483 request->rssi_thold =
4484 NL80211_SCAN_RSSI_THOLD_OFF;
4489 if (info->attrs[NL80211_ATTR_IE]) {
4490 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4491 memcpy((void *)request->ie,
4492 nla_data(info->attrs[NL80211_ATTR_IE]),
4497 request->wiphy = &rdev->wiphy;
4498 request->interval = interval;
4500 err = rdev->ops->sched_scan_start(&rdev->wiphy, dev, request);
4502 rdev->sched_scan_req = request;
4503 nl80211_send_sched_scan(rdev, dev,
4504 NL80211_CMD_START_SCHED_SCAN);
4511 mutex_unlock(&rdev->sched_scan_mtx);
4515 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4516 struct genl_info *info)
4518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4522 !rdev->ops->sched_scan_stop)
4525 mutex_lock(&rdev->sched_scan_mtx);
4526 err = __cfg80211_stop_sched_scan(rdev, false);
4527 mutex_unlock(&rdev->sched_scan_mtx);
4532 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4534 struct cfg80211_registered_device *rdev,
4535 struct wireless_dev *wdev,
4536 struct cfg80211_internal_bss *intbss)
4538 struct cfg80211_bss *res = &intbss->pub;
4542 ASSERT_WDEV_LOCK(wdev);
4544 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).pid, seq, flags,
4545 NL80211_CMD_NEW_SCAN_RESULTS);
4549 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4551 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4552 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4553 goto nla_put_failure;
4555 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4557 goto nla_put_failure;
4558 if ((!is_zero_ether_addr(res->bssid) &&
4559 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4560 (res->information_elements && res->len_information_elements &&
4561 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4562 res->len_information_elements,
4563 res->information_elements)) ||
4564 (res->beacon_ies && res->len_beacon_ies &&
4565 res->beacon_ies != res->information_elements &&
4566 nla_put(msg, NL80211_BSS_BEACON_IES,
4567 res->len_beacon_ies, res->beacon_ies)))
4568 goto nla_put_failure;
4570 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4571 goto nla_put_failure;
4572 if (res->beacon_interval &&
4573 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4574 goto nla_put_failure;
4575 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4576 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4577 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4578 jiffies_to_msecs(jiffies - intbss->ts)))
4579 goto nla_put_failure;
4581 switch (rdev->wiphy.signal_type) {
4582 case CFG80211_SIGNAL_TYPE_MBM:
4583 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4584 goto nla_put_failure;
4586 case CFG80211_SIGNAL_TYPE_UNSPEC:
4587 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4588 goto nla_put_failure;
4594 switch (wdev->iftype) {
4595 case NL80211_IFTYPE_P2P_CLIENT:
4596 case NL80211_IFTYPE_STATION:
4597 if (intbss == wdev->current_bss &&
4598 nla_put_u32(msg, NL80211_BSS_STATUS,
4599 NL80211_BSS_STATUS_ASSOCIATED))
4600 goto nla_put_failure;
4602 case NL80211_IFTYPE_ADHOC:
4603 if (intbss == wdev->current_bss &&
4604 nla_put_u32(msg, NL80211_BSS_STATUS,
4605 NL80211_BSS_STATUS_IBSS_JOINED))
4606 goto nla_put_failure;
4612 nla_nest_end(msg, bss);
4614 return genlmsg_end(msg, hdr);
4617 genlmsg_cancel(msg, hdr);
4621 static int nl80211_dump_scan(struct sk_buff *skb,
4622 struct netlink_callback *cb)
4624 struct cfg80211_registered_device *rdev;
4625 struct net_device *dev;
4626 struct cfg80211_internal_bss *scan;
4627 struct wireless_dev *wdev;
4628 int start = cb->args[1], idx = 0;
4631 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4635 wdev = dev->ieee80211_ptr;
4638 spin_lock_bh(&rdev->bss_lock);
4639 cfg80211_bss_expire(rdev);
4641 cb->seq = rdev->bss_generation;
4643 list_for_each_entry(scan, &rdev->bss_list, list) {
4646 if (nl80211_send_bss(skb, cb,
4647 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4648 rdev, wdev, scan) < 0) {
4654 spin_unlock_bh(&rdev->bss_lock);
4658 nl80211_finish_netdev_dump(rdev);
4663 static int nl80211_send_survey(struct sk_buff *msg, u32 pid, u32 seq,
4664 int flags, struct net_device *dev,
4665 struct survey_info *survey)
4668 struct nlattr *infoattr;
4670 hdr = nl80211hdr_put(msg, pid, seq, flags,
4671 NL80211_CMD_NEW_SURVEY_RESULTS);
4675 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4676 goto nla_put_failure;
4678 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4680 goto nla_put_failure;
4682 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4683 survey->channel->center_freq))
4684 goto nla_put_failure;
4686 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4687 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4688 goto nla_put_failure;
4689 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4690 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4691 goto nla_put_failure;
4692 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4693 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4694 survey->channel_time))
4695 goto nla_put_failure;
4696 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4697 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4698 survey->channel_time_busy))
4699 goto nla_put_failure;
4700 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4701 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4702 survey->channel_time_ext_busy))
4703 goto nla_put_failure;
4704 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4705 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4706 survey->channel_time_rx))
4707 goto nla_put_failure;
4708 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4709 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4710 survey->channel_time_tx))
4711 goto nla_put_failure;
4713 nla_nest_end(msg, infoattr);
4715 return genlmsg_end(msg, hdr);
4718 genlmsg_cancel(msg, hdr);
4722 static int nl80211_dump_survey(struct sk_buff *skb,
4723 struct netlink_callback *cb)
4725 struct survey_info survey;
4726 struct cfg80211_registered_device *dev;
4727 struct net_device *netdev;
4728 int survey_idx = cb->args[1];
4731 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4735 if (!dev->ops->dump_survey) {
4741 struct ieee80211_channel *chan;
4743 res = dev->ops->dump_survey(&dev->wiphy, netdev, survey_idx,
4750 /* Survey without a channel doesn't make sense */
4751 if (!survey.channel) {
4756 chan = ieee80211_get_channel(&dev->wiphy,
4757 survey.channel->center_freq);
4758 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4763 if (nl80211_send_survey(skb,
4764 NETLINK_CB(cb->skb).pid,
4765 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4773 cb->args[1] = survey_idx;
4776 nl80211_finish_netdev_dump(dev);
4780 static bool nl80211_valid_auth_type(enum nl80211_auth_type auth_type)
4782 return auth_type <= NL80211_AUTHTYPE_MAX;
4785 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4787 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4788 NL80211_WPA_VERSION_2));
4791 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4794 struct net_device *dev = info->user_ptr[1];
4795 struct ieee80211_channel *chan;
4796 const u8 *bssid, *ssid, *ie = NULL;
4797 int err, ssid_len, ie_len = 0;
4798 enum nl80211_auth_type auth_type;
4799 struct key_parse key;
4800 bool local_state_change;
4802 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4805 if (!info->attrs[NL80211_ATTR_MAC])
4808 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4811 if (!info->attrs[NL80211_ATTR_SSID])
4814 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4817 err = nl80211_parse_key(info, &key);
4822 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4824 if (!key.p.key || !key.p.key_len)
4826 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4827 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4828 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4829 key.p.key_len != WLAN_KEY_LEN_WEP104))
4841 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4842 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4851 if (!rdev->ops->auth)
4854 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4855 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4858 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4859 chan = ieee80211_get_channel(&rdev->wiphy,
4860 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4861 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4864 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4865 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4867 if (info->attrs[NL80211_ATTR_IE]) {
4868 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4869 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4872 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
4873 if (!nl80211_valid_auth_type(auth_type))
4876 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
4879 * Since we no longer track auth state, ignore
4880 * requests to only change local state.
4882 if (local_state_change)
4885 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
4886 ssid, ssid_len, ie, ie_len,
4887 key.p.key, key.p.key_len, key.idx);
4890 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
4891 struct genl_info *info,
4892 struct cfg80211_crypto_settings *settings,
4895 memset(settings, 0, sizeof(*settings));
4897 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
4899 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
4901 proto = nla_get_u16(
4902 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
4903 settings->control_port_ethertype = cpu_to_be16(proto);
4904 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
4907 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
4908 settings->control_port_no_encrypt = true;
4910 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
4912 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
4916 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4917 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
4918 settings->n_ciphers_pairwise = len / sizeof(u32);
4920 if (len % sizeof(u32))
4923 if (settings->n_ciphers_pairwise > cipher_limit)
4926 memcpy(settings->ciphers_pairwise, data, len);
4928 for (i = 0; i < settings->n_ciphers_pairwise; i++)
4929 if (!cfg80211_supported_cipher_suite(
4931 settings->ciphers_pairwise[i]))
4935 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
4936 settings->cipher_group =
4937 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
4938 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
4939 settings->cipher_group))
4943 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
4944 settings->wpa_versions =
4945 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
4946 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
4950 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
4954 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
4955 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
4956 settings->n_akm_suites = len / sizeof(u32);
4958 if (len % sizeof(u32))
4961 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
4964 memcpy(settings->akm_suites, data, len);
4970 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
4972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4973 struct net_device *dev = info->user_ptr[1];
4974 struct cfg80211_crypto_settings crypto;
4975 struct ieee80211_channel *chan;
4976 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
4977 int err, ssid_len, ie_len = 0;
4978 bool use_mfp = false;
4980 struct ieee80211_ht_cap *ht_capa = NULL;
4981 struct ieee80211_ht_cap *ht_capa_mask = NULL;
4983 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4986 if (!info->attrs[NL80211_ATTR_MAC] ||
4987 !info->attrs[NL80211_ATTR_SSID] ||
4988 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
4991 if (!rdev->ops->assoc)
4994 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4995 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4998 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5000 chan = ieee80211_get_channel(&rdev->wiphy,
5001 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5002 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5005 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5006 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5008 if (info->attrs[NL80211_ATTR_IE]) {
5009 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5010 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5013 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5014 enum nl80211_mfp mfp =
5015 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5016 if (mfp == NL80211_MFP_REQUIRED)
5018 else if (mfp != NL80211_MFP_NO)
5022 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5023 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5025 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5026 flags |= ASSOC_REQ_DISABLE_HT;
5028 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5030 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5032 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5035 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5038 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5040 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5041 ssid, ssid_len, ie, ie_len, use_mfp,
5042 &crypto, flags, ht_capa,
5048 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5050 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5051 struct net_device *dev = info->user_ptr[1];
5052 const u8 *ie = NULL, *bssid;
5055 bool local_state_change;
5057 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5060 if (!info->attrs[NL80211_ATTR_MAC])
5063 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5066 if (!rdev->ops->deauth)
5069 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5070 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5073 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5075 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5076 if (reason_code == 0) {
5077 /* Reason Code 0 is reserved */
5081 if (info->attrs[NL80211_ATTR_IE]) {
5082 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5083 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5086 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5088 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5089 local_state_change);
5092 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5095 struct net_device *dev = info->user_ptr[1];
5096 const u8 *ie = NULL, *bssid;
5099 bool local_state_change;
5101 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5104 if (!info->attrs[NL80211_ATTR_MAC])
5107 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5110 if (!rdev->ops->disassoc)
5113 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5114 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5117 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5119 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5120 if (reason_code == 0) {
5121 /* Reason Code 0 is reserved */
5125 if (info->attrs[NL80211_ATTR_IE]) {
5126 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5127 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5130 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5132 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5133 local_state_change);
5137 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5138 int mcast_rate[IEEE80211_NUM_BANDS],
5141 struct wiphy *wiphy = &rdev->wiphy;
5145 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5146 struct ieee80211_supported_band *sband;
5148 sband = wiphy->bands[band];
5152 for (i = 0; i < sband->n_bitrates; i++) {
5153 if (sband->bitrates[i].bitrate == rateval) {
5154 mcast_rate[band] = i + 1;
5164 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5167 struct net_device *dev = info->user_ptr[1];
5168 struct cfg80211_ibss_params ibss;
5169 struct wiphy *wiphy;
5170 struct cfg80211_cached_keys *connkeys = NULL;
5173 memset(&ibss, 0, sizeof(ibss));
5175 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5178 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5179 !info->attrs[NL80211_ATTR_SSID] ||
5180 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5183 ibss.beacon_interval = 100;
5185 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5186 ibss.beacon_interval =
5187 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5188 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5192 if (!rdev->ops->join_ibss)
5195 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5198 wiphy = &rdev->wiphy;
5200 if (info->attrs[NL80211_ATTR_MAC]) {
5201 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5203 if (!is_valid_ether_addr(ibss.bssid))
5206 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5207 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5209 if (info->attrs[NL80211_ATTR_IE]) {
5210 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5211 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5214 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5215 enum nl80211_channel_type channel_type;
5217 if (!nl80211_valid_channel_type(info, &channel_type))
5220 if (channel_type != NL80211_CHAN_NO_HT &&
5221 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5224 ibss.channel_type = channel_type;
5226 ibss.channel_type = NL80211_CHAN_NO_HT;
5229 ibss.channel = rdev_freq_to_chan(rdev,
5230 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5232 if (!ibss.channel ||
5233 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5234 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5237 /* Both channels should be able to initiate communication */
5238 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5239 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5240 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5244 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5245 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5247 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5249 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5251 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5252 struct ieee80211_supported_band *sband =
5253 wiphy->bands[ibss.channel->band];
5255 err = ieee80211_get_ratemask(sband, rates, n_rates,
5261 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5262 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5263 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5266 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5267 connkeys = nl80211_parse_connkeys(rdev,
5268 info->attrs[NL80211_ATTR_KEYS]);
5269 if (IS_ERR(connkeys))
5270 return PTR_ERR(connkeys);
5274 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5276 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5282 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5285 struct net_device *dev = info->user_ptr[1];
5287 if (!rdev->ops->leave_ibss)
5290 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5293 return cfg80211_leave_ibss(rdev, dev, false);
5296 #ifdef CONFIG_NL80211_TESTMODE
5297 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5301 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5306 if (!info->attrs[NL80211_ATTR_TESTDATA])
5310 if (rdev->ops->testmode_cmd) {
5311 rdev->testmode_info = info;
5312 err = rdev->ops->testmode_cmd(&rdev->wiphy,
5313 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5314 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5315 rdev->testmode_info = NULL;
5321 static int nl80211_testmode_dump(struct sk_buff *skb,
5322 struct netlink_callback *cb)
5324 struct cfg80211_registered_device *rdev;
5332 * 0 is a valid index, but not valid for args[0],
5333 * so we need to offset by 1.
5335 phy_idx = cb->args[0] - 1;
5337 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5338 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5343 mutex_lock(&cfg80211_mutex);
5344 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5345 nl80211_fam.attrbuf);
5347 mutex_unlock(&cfg80211_mutex);
5348 return PTR_ERR(rdev);
5350 phy_idx = rdev->wiphy_idx;
5352 mutex_unlock(&cfg80211_mutex);
5354 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5356 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5360 data = nla_data((void *)cb->args[1]);
5361 data_len = nla_len((void *)cb->args[1]);
5364 mutex_lock(&cfg80211_mutex);
5365 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5367 mutex_unlock(&cfg80211_mutex);
5370 cfg80211_lock_rdev(rdev);
5371 mutex_unlock(&cfg80211_mutex);
5373 if (!rdev->ops->testmode_dump) {
5379 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).pid,
5380 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5381 NL80211_CMD_TESTMODE);
5382 struct nlattr *tmdata;
5384 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5385 genlmsg_cancel(skb, hdr);
5389 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5391 genlmsg_cancel(skb, hdr);
5394 err = rdev->ops->testmode_dump(&rdev->wiphy, skb, cb,
5396 nla_nest_end(skb, tmdata);
5398 if (err == -ENOBUFS || err == -ENOENT) {
5399 genlmsg_cancel(skb, hdr);
5402 genlmsg_cancel(skb, hdr);
5406 genlmsg_end(skb, hdr);
5411 cb->args[0] = phy_idx + 1;
5413 cfg80211_unlock_rdev(rdev);
5417 static struct sk_buff *
5418 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5419 int approxlen, u32 pid, u32 seq, gfp_t gfp)
5421 struct sk_buff *skb;
5423 struct nlattr *data;
5425 skb = nlmsg_new(approxlen + 100, gfp);
5429 hdr = nl80211hdr_put(skb, pid, seq, 0, NL80211_CMD_TESTMODE);
5435 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5436 goto nla_put_failure;
5437 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5439 ((void **)skb->cb)[0] = rdev;
5440 ((void **)skb->cb)[1] = hdr;
5441 ((void **)skb->cb)[2] = data;
5450 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5453 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5455 if (WARN_ON(!rdev->testmode_info))
5458 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5459 rdev->testmode_info->snd_pid,
5460 rdev->testmode_info->snd_seq,
5463 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5465 int cfg80211_testmode_reply(struct sk_buff *skb)
5467 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5468 void *hdr = ((void **)skb->cb)[1];
5469 struct nlattr *data = ((void **)skb->cb)[2];
5471 if (WARN_ON(!rdev->testmode_info)) {
5476 nla_nest_end(skb, data);
5477 genlmsg_end(skb, hdr);
5478 return genlmsg_reply(skb, rdev->testmode_info);
5480 EXPORT_SYMBOL(cfg80211_testmode_reply);
5482 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5483 int approxlen, gfp_t gfp)
5485 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5487 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5489 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5491 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5493 void *hdr = ((void **)skb->cb)[1];
5494 struct nlattr *data = ((void **)skb->cb)[2];
5496 nla_nest_end(skb, data);
5497 genlmsg_end(skb, hdr);
5498 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5500 EXPORT_SYMBOL(cfg80211_testmode_event);
5503 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5506 struct net_device *dev = info->user_ptr[1];
5507 struct cfg80211_connect_params connect;
5508 struct wiphy *wiphy;
5509 struct cfg80211_cached_keys *connkeys = NULL;
5512 memset(&connect, 0, sizeof(connect));
5514 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5517 if (!info->attrs[NL80211_ATTR_SSID] ||
5518 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5521 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5523 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5524 if (!nl80211_valid_auth_type(connect.auth_type))
5527 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5529 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5531 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5532 NL80211_MAX_NR_CIPHER_SUITES);
5536 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5537 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5540 wiphy = &rdev->wiphy;
5542 connect.bg_scan_period = -1;
5543 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5544 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5545 connect.bg_scan_period =
5546 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5549 if (info->attrs[NL80211_ATTR_MAC])
5550 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5551 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5552 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5554 if (info->attrs[NL80211_ATTR_IE]) {
5555 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5556 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5559 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5561 ieee80211_get_channel(wiphy,
5562 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5563 if (!connect.channel ||
5564 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5568 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5569 connkeys = nl80211_parse_connkeys(rdev,
5570 info->attrs[NL80211_ATTR_KEYS]);
5571 if (IS_ERR(connkeys))
5572 return PTR_ERR(connkeys);
5575 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5576 connect.flags |= ASSOC_REQ_DISABLE_HT;
5578 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5579 memcpy(&connect.ht_capa_mask,
5580 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5581 sizeof(connect.ht_capa_mask));
5583 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5584 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5586 memcpy(&connect.ht_capa,
5587 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5588 sizeof(connect.ht_capa));
5591 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5597 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5600 struct net_device *dev = info->user_ptr[1];
5603 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5604 reason = WLAN_REASON_DEAUTH_LEAVING;
5606 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5611 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5612 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5615 return cfg80211_disconnect(rdev, dev, reason, true);
5618 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5620 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5625 if (!info->attrs[NL80211_ATTR_PID])
5628 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5630 net = get_net_ns_by_pid(pid);
5632 return PTR_ERR(net);
5636 /* check if anything to do */
5637 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5638 err = cfg80211_switch_netns(rdev, net);
5644 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5646 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5647 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5648 struct cfg80211_pmksa *pmksa) = NULL;
5649 struct net_device *dev = info->user_ptr[1];
5650 struct cfg80211_pmksa pmksa;
5652 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5654 if (!info->attrs[NL80211_ATTR_MAC])
5657 if (!info->attrs[NL80211_ATTR_PMKID])
5660 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5661 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5663 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5664 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5667 switch (info->genlhdr->cmd) {
5668 case NL80211_CMD_SET_PMKSA:
5669 rdev_ops = rdev->ops->set_pmksa;
5671 case NL80211_CMD_DEL_PMKSA:
5672 rdev_ops = rdev->ops->del_pmksa;
5682 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5685 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5688 struct net_device *dev = info->user_ptr[1];
5690 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5691 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5694 if (!rdev->ops->flush_pmksa)
5697 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
5700 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5703 struct net_device *dev = info->user_ptr[1];
5704 u8 action_code, dialog_token;
5708 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5709 !rdev->ops->tdls_mgmt)
5712 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5713 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5714 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5715 !info->attrs[NL80211_ATTR_IE] ||
5716 !info->attrs[NL80211_ATTR_MAC])
5719 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5720 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5721 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5722 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5724 return rdev->ops->tdls_mgmt(&rdev->wiphy, dev, peer, action_code,
5725 dialog_token, status_code,
5726 nla_data(info->attrs[NL80211_ATTR_IE]),
5727 nla_len(info->attrs[NL80211_ATTR_IE]));
5730 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5733 struct net_device *dev = info->user_ptr[1];
5734 enum nl80211_tdls_operation operation;
5737 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5738 !rdev->ops->tdls_oper)
5741 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5742 !info->attrs[NL80211_ATTR_MAC])
5745 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5746 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5748 return rdev->ops->tdls_oper(&rdev->wiphy, dev, peer, operation);
5751 static int nl80211_remain_on_channel(struct sk_buff *skb,
5752 struct genl_info *info)
5754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5755 struct net_device *dev = info->user_ptr[1];
5756 struct ieee80211_channel *chan;
5757 struct sk_buff *msg;
5760 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5764 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5765 !info->attrs[NL80211_ATTR_DURATION])
5768 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5770 if (!rdev->ops->remain_on_channel ||
5771 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5775 * We should be on that channel for at least a minimum amount of
5776 * time (10ms) but no longer than the driver supports.
5778 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5779 duration > rdev->wiphy.max_remain_on_channel_duration)
5782 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5783 !nl80211_valid_channel_type(info, &channel_type))
5786 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5787 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5791 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5795 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
5796 NL80211_CMD_REMAIN_ON_CHANNEL);
5803 err = rdev->ops->remain_on_channel(&rdev->wiphy, dev, chan,
5804 channel_type, duration, &cookie);
5809 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5810 goto nla_put_failure;
5812 genlmsg_end(msg, hdr);
5814 return genlmsg_reply(msg, info);
5823 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5824 struct genl_info *info)
5826 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5827 struct net_device *dev = info->user_ptr[1];
5830 if (!info->attrs[NL80211_ATTR_COOKIE])
5833 if (!rdev->ops->cancel_remain_on_channel)
5836 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5838 return rdev->ops->cancel_remain_on_channel(&rdev->wiphy, dev, cookie);
5841 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5842 u8 *rates, u8 rates_len)
5847 for (i = 0; i < rates_len; i++) {
5848 int rate = (rates[i] & 0x7f) * 5;
5850 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
5851 struct ieee80211_rate *srate =
5852 &sband->bitrates[ridx];
5853 if (rate == srate->bitrate) {
5858 if (ridx == sband->n_bitrates)
5859 return 0; /* rate not found */
5865 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
5866 u8 *rates, u8 rates_len,
5867 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
5871 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
5873 for (i = 0; i < rates_len; i++) {
5876 ridx = rates[i] / 8;
5877 rbit = BIT(rates[i] % 8);
5879 /* check validity */
5880 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
5883 /* check availability */
5884 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
5893 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
5894 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
5895 .len = NL80211_MAX_SUPP_RATES },
5896 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
5897 .len = NL80211_MAX_SUPP_HT_RATES },
5900 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
5901 struct genl_info *info)
5903 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
5904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5905 struct cfg80211_bitrate_mask mask;
5907 struct net_device *dev = info->user_ptr[1];
5908 struct nlattr *tx_rates;
5909 struct ieee80211_supported_band *sband;
5911 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
5914 if (!rdev->ops->set_bitrate_mask)
5917 memset(&mask, 0, sizeof(mask));
5918 /* Default to all rates enabled */
5919 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
5920 sband = rdev->wiphy.bands[i];
5921 mask.control[i].legacy =
5922 sband ? (1 << sband->n_bitrates) - 1 : 0;
5924 memcpy(mask.control[i].mcs,
5925 sband->ht_cap.mcs.rx_mask,
5926 sizeof(mask.control[i].mcs));
5928 memset(mask.control[i].mcs, 0,
5929 sizeof(mask.control[i].mcs));
5933 * The nested attribute uses enum nl80211_band as the index. This maps
5934 * directly to the enum ieee80211_band values used in cfg80211.
5936 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
5937 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
5939 enum ieee80211_band band = nla_type(tx_rates);
5940 if (band < 0 || band >= IEEE80211_NUM_BANDS)
5942 sband = rdev->wiphy.bands[band];
5945 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
5946 nla_len(tx_rates), nl80211_txattr_policy);
5947 if (tb[NL80211_TXRATE_LEGACY]) {
5948 mask.control[band].legacy = rateset_to_mask(
5950 nla_data(tb[NL80211_TXRATE_LEGACY]),
5951 nla_len(tb[NL80211_TXRATE_LEGACY]));
5952 if ((mask.control[band].legacy == 0) &&
5953 nla_len(tb[NL80211_TXRATE_LEGACY]))
5956 if (tb[NL80211_TXRATE_MCS]) {
5957 if (!ht_rateset_to_mask(
5959 nla_data(tb[NL80211_TXRATE_MCS]),
5960 nla_len(tb[NL80211_TXRATE_MCS]),
5961 mask.control[band].mcs))
5965 if (mask.control[band].legacy == 0) {
5966 /* don't allow empty legacy rates if HT
5967 * is not even supported. */
5968 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
5971 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
5972 if (mask.control[band].mcs[i])
5975 /* legacy and mcs rates may not be both empty */
5976 if (i == IEEE80211_HT_MCS_MASK_LEN)
5981 return rdev->ops->set_bitrate_mask(&rdev->wiphy, dev, NULL, &mask);
5984 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
5986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5987 struct net_device *dev = info->user_ptr[1];
5988 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
5990 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
5993 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
5994 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
5996 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5997 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5998 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
5999 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6000 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6001 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
6002 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6005 /* not much point in registering if we can't reply */
6006 if (!rdev->ops->mgmt_tx)
6009 return cfg80211_mlme_register_mgmt(dev->ieee80211_ptr, info->snd_pid,
6011 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6012 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6015 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6018 struct net_device *dev = info->user_ptr[1];
6019 struct ieee80211_channel *chan;
6020 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6021 bool channel_type_valid = false;
6026 struct sk_buff *msg = NULL;
6027 unsigned int wait = 0;
6028 bool offchan, no_cck, dont_wait_for_ack;
6030 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6032 if (!info->attrs[NL80211_ATTR_FRAME] ||
6033 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6036 if (!rdev->ops->mgmt_tx)
6039 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6040 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6041 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6042 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6043 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6044 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
6045 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6048 if (info->attrs[NL80211_ATTR_DURATION]) {
6049 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6051 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6054 * We should wait on the channel for at least a minimum amount
6055 * of time (10ms) but no longer than the driver supports.
6057 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6058 wait > rdev->wiphy.max_remain_on_channel_duration)
6063 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6064 if (!nl80211_valid_channel_type(info, &channel_type))
6066 channel_type_valid = true;
6069 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6071 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6074 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6076 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6077 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6081 if (!dont_wait_for_ack) {
6082 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6086 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6095 err = cfg80211_mlme_mgmt_tx(rdev, dev, chan, offchan, channel_type,
6096 channel_type_valid, wait,
6097 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6098 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6099 no_cck, dont_wait_for_ack, &cookie);
6104 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6105 goto nla_put_failure;
6107 genlmsg_end(msg, hdr);
6108 return genlmsg_reply(msg, info);
6120 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6123 struct net_device *dev = info->user_ptr[1];
6126 if (!info->attrs[NL80211_ATTR_COOKIE])
6129 if (!rdev->ops->mgmt_tx_cancel_wait)
6132 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6133 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6134 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT &&
6135 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
6136 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
6137 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
6140 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6142 return rdev->ops->mgmt_tx_cancel_wait(&rdev->wiphy, dev, cookie);
6145 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6148 struct wireless_dev *wdev;
6149 struct net_device *dev = info->user_ptr[1];
6154 if (!info->attrs[NL80211_ATTR_PS_STATE])
6157 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6159 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6162 wdev = dev->ieee80211_ptr;
6164 if (!rdev->ops->set_power_mgmt)
6167 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6169 if (state == wdev->ps)
6172 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, state,
6179 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6181 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6182 enum nl80211_ps_state ps_state;
6183 struct wireless_dev *wdev;
6184 struct net_device *dev = info->user_ptr[1];
6185 struct sk_buff *msg;
6189 wdev = dev->ieee80211_ptr;
6191 if (!rdev->ops->set_power_mgmt)
6194 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6198 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6199 NL80211_CMD_GET_POWER_SAVE);
6206 ps_state = NL80211_PS_ENABLED;
6208 ps_state = NL80211_PS_DISABLED;
6210 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6211 goto nla_put_failure;
6213 genlmsg_end(msg, hdr);
6214 return genlmsg_reply(msg, info);
6223 static struct nla_policy
6224 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6225 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6226 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6227 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6230 static int nl80211_set_cqm_rssi(struct genl_info *info,
6231 s32 threshold, u32 hysteresis)
6233 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6234 struct wireless_dev *wdev;
6235 struct net_device *dev = info->user_ptr[1];
6240 wdev = dev->ieee80211_ptr;
6242 if (!rdev->ops->set_cqm_rssi_config)
6245 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6246 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6249 return rdev->ops->set_cqm_rssi_config(wdev->wiphy, dev,
6250 threshold, hysteresis);
6253 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6255 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6259 cqm = info->attrs[NL80211_ATTR_CQM];
6265 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6266 nl80211_attr_cqm_policy);
6270 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6271 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6274 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6275 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6276 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6284 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6286 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6287 struct net_device *dev = info->user_ptr[1];
6288 struct mesh_config cfg;
6289 struct mesh_setup setup;
6292 /* start with default */
6293 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6294 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6296 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6297 /* and parse parameters if given */
6298 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6303 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6304 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6307 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6308 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6310 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6311 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6312 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6315 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6316 /* parse additional setup parameters if given */
6317 err = nl80211_parse_mesh_setup(info, &setup);
6322 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6323 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6325 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6326 !nl80211_valid_channel_type(info, &channel_type))
6329 setup.channel = rdev_freq_to_chan(rdev,
6330 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6334 setup.channel_type = channel_type;
6336 /* cfg80211_join_mesh() will sort it out */
6337 setup.channel = NULL;
6340 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6343 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6345 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6346 struct net_device *dev = info->user_ptr[1];
6348 return cfg80211_leave_mesh(rdev, dev);
6352 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6355 struct sk_buff *msg;
6358 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6365 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6366 NL80211_CMD_GET_WOWLAN);
6368 goto nla_put_failure;
6371 struct nlattr *nl_wowlan;
6373 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6375 goto nla_put_failure;
6377 if ((rdev->wowlan->any &&
6378 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6379 (rdev->wowlan->disconnect &&
6380 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6381 (rdev->wowlan->magic_pkt &&
6382 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6383 (rdev->wowlan->gtk_rekey_failure &&
6384 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6385 (rdev->wowlan->eap_identity_req &&
6386 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6387 (rdev->wowlan->four_way_handshake &&
6388 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6389 (rdev->wowlan->rfkill_release &&
6390 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6391 goto nla_put_failure;
6392 if (rdev->wowlan->n_patterns) {
6393 struct nlattr *nl_pats, *nl_pat;
6396 nl_pats = nla_nest_start(msg,
6397 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6399 goto nla_put_failure;
6401 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6402 nl_pat = nla_nest_start(msg, i + 1);
6404 goto nla_put_failure;
6405 pat_len = rdev->wowlan->patterns[i].pattern_len;
6406 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6407 DIV_ROUND_UP(pat_len, 8),
6408 rdev->wowlan->patterns[i].mask) ||
6409 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6411 rdev->wowlan->patterns[i].pattern))
6412 goto nla_put_failure;
6413 nla_nest_end(msg, nl_pat);
6415 nla_nest_end(msg, nl_pats);
6418 nla_nest_end(msg, nl_wowlan);
6421 genlmsg_end(msg, hdr);
6422 return genlmsg_reply(msg, info);
6429 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6432 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6433 struct cfg80211_wowlan no_triggers = {};
6434 struct cfg80211_wowlan new_triggers = {};
6435 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6437 bool prev_enabled = rdev->wowlan;
6439 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6442 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
6445 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6446 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6447 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6448 nl80211_wowlan_policy);
6452 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6453 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6455 new_triggers.any = true;
6458 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6459 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6461 new_triggers.disconnect = true;
6464 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6465 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6467 new_triggers.magic_pkt = true;
6470 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6473 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6474 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6476 new_triggers.gtk_rekey_failure = true;
6479 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6480 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6482 new_triggers.eap_identity_req = true;
6485 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6486 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6488 new_triggers.four_way_handshake = true;
6491 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6492 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6494 new_triggers.rfkill_release = true;
6497 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6500 int rem, pat_len, mask_len;
6501 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6503 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6506 if (n_patterns > wowlan->n_patterns)
6509 new_triggers.patterns = kcalloc(n_patterns,
6510 sizeof(new_triggers.patterns[0]),
6512 if (!new_triggers.patterns)
6515 new_triggers.n_patterns = n_patterns;
6518 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6520 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6521 nla_data(pat), nla_len(pat), NULL);
6523 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6524 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6526 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6527 mask_len = DIV_ROUND_UP(pat_len, 8);
6528 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6531 if (pat_len > wowlan->pattern_max_len ||
6532 pat_len < wowlan->pattern_min_len)
6535 new_triggers.patterns[i].mask =
6536 kmalloc(mask_len + pat_len, GFP_KERNEL);
6537 if (!new_triggers.patterns[i].mask) {
6541 new_triggers.patterns[i].pattern =
6542 new_triggers.patterns[i].mask + mask_len;
6543 memcpy(new_triggers.patterns[i].mask,
6544 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6546 new_triggers.patterns[i].pattern_len = pat_len;
6547 memcpy(new_triggers.patterns[i].pattern,
6548 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6554 if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
6555 struct cfg80211_wowlan *ntrig;
6556 ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
6562 cfg80211_rdev_free_wowlan(rdev);
6563 rdev->wowlan = ntrig;
6566 cfg80211_rdev_free_wowlan(rdev);
6567 rdev->wowlan = NULL;
6570 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6571 rdev->ops->set_wakeup(&rdev->wiphy, rdev->wowlan);
6575 for (i = 0; i < new_triggers.n_patterns; i++)
6576 kfree(new_triggers.patterns[i].mask);
6577 kfree(new_triggers.patterns);
6582 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6585 struct net_device *dev = info->user_ptr[1];
6586 struct wireless_dev *wdev = dev->ieee80211_ptr;
6587 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6588 struct cfg80211_gtk_rekey_data rekey_data;
6591 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6594 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6595 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6596 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6597 nl80211_rekey_policy);
6601 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6603 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6605 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6608 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6610 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6612 memcpy(rekey_data.replay_ctr,
6613 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6614 NL80211_REPLAY_CTR_LEN);
6617 if (!wdev->current_bss) {
6622 if (!rdev->ops->set_rekey_data) {
6627 err = rdev->ops->set_rekey_data(&rdev->wiphy, dev, &rekey_data);
6633 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6634 struct genl_info *info)
6636 struct net_device *dev = info->user_ptr[1];
6637 struct wireless_dev *wdev = dev->ieee80211_ptr;
6639 if (wdev->iftype != NL80211_IFTYPE_AP &&
6640 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6643 if (wdev->ap_unexpected_nlpid)
6646 wdev->ap_unexpected_nlpid = info->snd_pid;
6650 static int nl80211_probe_client(struct sk_buff *skb,
6651 struct genl_info *info)
6653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6654 struct net_device *dev = info->user_ptr[1];
6655 struct wireless_dev *wdev = dev->ieee80211_ptr;
6656 struct sk_buff *msg;
6662 if (wdev->iftype != NL80211_IFTYPE_AP &&
6663 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6666 if (!info->attrs[NL80211_ATTR_MAC])
6669 if (!rdev->ops->probe_client)
6672 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6676 hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
6677 NL80211_CMD_PROBE_CLIENT);
6684 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6686 err = rdev->ops->probe_client(&rdev->wiphy, dev, addr, &cookie);
6690 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6691 goto nla_put_failure;
6693 genlmsg_end(msg, hdr);
6695 return genlmsg_reply(msg, info);
6704 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6708 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6711 if (rdev->ap_beacons_nlpid)
6714 rdev->ap_beacons_nlpid = info->snd_pid;
6719 #define NL80211_FLAG_NEED_WIPHY 0x01
6720 #define NL80211_FLAG_NEED_NETDEV 0x02
6721 #define NL80211_FLAG_NEED_RTNL 0x04
6722 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6723 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6724 NL80211_FLAG_CHECK_NETDEV_UP)
6725 #define NL80211_FLAG_NEED_WDEV 0x10
6726 /* If a netdev is associated, it must be UP */
6727 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6728 NL80211_FLAG_CHECK_NETDEV_UP)
6730 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6731 struct genl_info *info)
6733 struct cfg80211_registered_device *rdev;
6734 struct wireless_dev *wdev;
6735 struct net_device *dev;
6736 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6741 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6742 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
6746 return PTR_ERR(rdev);
6748 info->user_ptr[0] = rdev;
6749 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
6750 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6751 mutex_lock(&cfg80211_mutex);
6752 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
6755 mutex_unlock(&cfg80211_mutex);
6758 return PTR_ERR(wdev);
6762 rdev = wiphy_to_dev(wdev->wiphy);
6764 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
6766 mutex_unlock(&cfg80211_mutex);
6772 info->user_ptr[1] = dev;
6774 info->user_ptr[1] = wdev;
6778 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
6779 !netif_running(dev)) {
6780 mutex_unlock(&cfg80211_mutex);
6789 cfg80211_lock_rdev(rdev);
6791 mutex_unlock(&cfg80211_mutex);
6793 info->user_ptr[0] = rdev;
6799 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
6800 struct genl_info *info)
6802 if (info->user_ptr[0])
6803 cfg80211_unlock_rdev(info->user_ptr[0]);
6804 if (info->user_ptr[1]) {
6805 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
6806 struct wireless_dev *wdev = info->user_ptr[1];
6809 dev_put(wdev->netdev);
6811 dev_put(info->user_ptr[1]);
6814 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
6818 static struct genl_ops nl80211_ops[] = {
6820 .cmd = NL80211_CMD_GET_WIPHY,
6821 .doit = nl80211_get_wiphy,
6822 .dumpit = nl80211_dump_wiphy,
6823 .policy = nl80211_policy,
6824 /* can be retrieved by unprivileged users */
6825 .internal_flags = NL80211_FLAG_NEED_WIPHY,
6828 .cmd = NL80211_CMD_SET_WIPHY,
6829 .doit = nl80211_set_wiphy,
6830 .policy = nl80211_policy,
6831 .flags = GENL_ADMIN_PERM,
6832 .internal_flags = NL80211_FLAG_NEED_RTNL,
6835 .cmd = NL80211_CMD_GET_INTERFACE,
6836 .doit = nl80211_get_interface,
6837 .dumpit = nl80211_dump_interface,
6838 .policy = nl80211_policy,
6839 /* can be retrieved by unprivileged users */
6840 .internal_flags = NL80211_FLAG_NEED_WDEV,
6843 .cmd = NL80211_CMD_SET_INTERFACE,
6844 .doit = nl80211_set_interface,
6845 .policy = nl80211_policy,
6846 .flags = GENL_ADMIN_PERM,
6847 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6848 NL80211_FLAG_NEED_RTNL,
6851 .cmd = NL80211_CMD_NEW_INTERFACE,
6852 .doit = nl80211_new_interface,
6853 .policy = nl80211_policy,
6854 .flags = GENL_ADMIN_PERM,
6855 .internal_flags = NL80211_FLAG_NEED_WIPHY |
6856 NL80211_FLAG_NEED_RTNL,
6859 .cmd = NL80211_CMD_DEL_INTERFACE,
6860 .doit = nl80211_del_interface,
6861 .policy = nl80211_policy,
6862 .flags = GENL_ADMIN_PERM,
6863 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6864 NL80211_FLAG_NEED_RTNL,
6867 .cmd = NL80211_CMD_GET_KEY,
6868 .doit = nl80211_get_key,
6869 .policy = nl80211_policy,
6870 .flags = GENL_ADMIN_PERM,
6871 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6872 NL80211_FLAG_NEED_RTNL,
6875 .cmd = NL80211_CMD_SET_KEY,
6876 .doit = nl80211_set_key,
6877 .policy = nl80211_policy,
6878 .flags = GENL_ADMIN_PERM,
6879 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6880 NL80211_FLAG_NEED_RTNL,
6883 .cmd = NL80211_CMD_NEW_KEY,
6884 .doit = nl80211_new_key,
6885 .policy = nl80211_policy,
6886 .flags = GENL_ADMIN_PERM,
6887 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6888 NL80211_FLAG_NEED_RTNL,
6891 .cmd = NL80211_CMD_DEL_KEY,
6892 .doit = nl80211_del_key,
6893 .policy = nl80211_policy,
6894 .flags = GENL_ADMIN_PERM,
6895 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6896 NL80211_FLAG_NEED_RTNL,
6899 .cmd = NL80211_CMD_SET_BEACON,
6900 .policy = nl80211_policy,
6901 .flags = GENL_ADMIN_PERM,
6902 .doit = nl80211_set_beacon,
6903 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6904 NL80211_FLAG_NEED_RTNL,
6907 .cmd = NL80211_CMD_START_AP,
6908 .policy = nl80211_policy,
6909 .flags = GENL_ADMIN_PERM,
6910 .doit = nl80211_start_ap,
6911 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6912 NL80211_FLAG_NEED_RTNL,
6915 .cmd = NL80211_CMD_STOP_AP,
6916 .policy = nl80211_policy,
6917 .flags = GENL_ADMIN_PERM,
6918 .doit = nl80211_stop_ap,
6919 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6920 NL80211_FLAG_NEED_RTNL,
6923 .cmd = NL80211_CMD_GET_STATION,
6924 .doit = nl80211_get_station,
6925 .dumpit = nl80211_dump_station,
6926 .policy = nl80211_policy,
6927 .internal_flags = NL80211_FLAG_NEED_NETDEV |
6928 NL80211_FLAG_NEED_RTNL,
6931 .cmd = NL80211_CMD_SET_STATION,
6932 .doit = nl80211_set_station,
6933 .policy = nl80211_policy,
6934 .flags = GENL_ADMIN_PERM,
6935 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6936 NL80211_FLAG_NEED_RTNL,
6939 .cmd = NL80211_CMD_NEW_STATION,
6940 .doit = nl80211_new_station,
6941 .policy = nl80211_policy,
6942 .flags = GENL_ADMIN_PERM,
6943 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6944 NL80211_FLAG_NEED_RTNL,
6947 .cmd = NL80211_CMD_DEL_STATION,
6948 .doit = nl80211_del_station,
6949 .policy = nl80211_policy,
6950 .flags = GENL_ADMIN_PERM,
6951 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6952 NL80211_FLAG_NEED_RTNL,
6955 .cmd = NL80211_CMD_GET_MPATH,
6956 .doit = nl80211_get_mpath,
6957 .dumpit = nl80211_dump_mpath,
6958 .policy = nl80211_policy,
6959 .flags = GENL_ADMIN_PERM,
6960 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6961 NL80211_FLAG_NEED_RTNL,
6964 .cmd = NL80211_CMD_SET_MPATH,
6965 .doit = nl80211_set_mpath,
6966 .policy = nl80211_policy,
6967 .flags = GENL_ADMIN_PERM,
6968 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6969 NL80211_FLAG_NEED_RTNL,
6972 .cmd = NL80211_CMD_NEW_MPATH,
6973 .doit = nl80211_new_mpath,
6974 .policy = nl80211_policy,
6975 .flags = GENL_ADMIN_PERM,
6976 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6977 NL80211_FLAG_NEED_RTNL,
6980 .cmd = NL80211_CMD_DEL_MPATH,
6981 .doit = nl80211_del_mpath,
6982 .policy = nl80211_policy,
6983 .flags = GENL_ADMIN_PERM,
6984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6985 NL80211_FLAG_NEED_RTNL,
6988 .cmd = NL80211_CMD_SET_BSS,
6989 .doit = nl80211_set_bss,
6990 .policy = nl80211_policy,
6991 .flags = GENL_ADMIN_PERM,
6992 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
6993 NL80211_FLAG_NEED_RTNL,
6996 .cmd = NL80211_CMD_GET_REG,
6997 .doit = nl80211_get_reg,
6998 .policy = nl80211_policy,
6999 /* can be retrieved by unprivileged users */
7002 .cmd = NL80211_CMD_SET_REG,
7003 .doit = nl80211_set_reg,
7004 .policy = nl80211_policy,
7005 .flags = GENL_ADMIN_PERM,
7008 .cmd = NL80211_CMD_REQ_SET_REG,
7009 .doit = nl80211_req_set_reg,
7010 .policy = nl80211_policy,
7011 .flags = GENL_ADMIN_PERM,
7014 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7015 .doit = nl80211_get_mesh_config,
7016 .policy = nl80211_policy,
7017 /* can be retrieved by unprivileged users */
7018 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7019 NL80211_FLAG_NEED_RTNL,
7022 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7023 .doit = nl80211_update_mesh_config,
7024 .policy = nl80211_policy,
7025 .flags = GENL_ADMIN_PERM,
7026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7027 NL80211_FLAG_NEED_RTNL,
7030 .cmd = NL80211_CMD_TRIGGER_SCAN,
7031 .doit = nl80211_trigger_scan,
7032 .policy = nl80211_policy,
7033 .flags = GENL_ADMIN_PERM,
7034 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7035 NL80211_FLAG_NEED_RTNL,
7038 .cmd = NL80211_CMD_GET_SCAN,
7039 .policy = nl80211_policy,
7040 .dumpit = nl80211_dump_scan,
7043 .cmd = NL80211_CMD_START_SCHED_SCAN,
7044 .doit = nl80211_start_sched_scan,
7045 .policy = nl80211_policy,
7046 .flags = GENL_ADMIN_PERM,
7047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7048 NL80211_FLAG_NEED_RTNL,
7051 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7052 .doit = nl80211_stop_sched_scan,
7053 .policy = nl80211_policy,
7054 .flags = GENL_ADMIN_PERM,
7055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7056 NL80211_FLAG_NEED_RTNL,
7059 .cmd = NL80211_CMD_AUTHENTICATE,
7060 .doit = nl80211_authenticate,
7061 .policy = nl80211_policy,
7062 .flags = GENL_ADMIN_PERM,
7063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7064 NL80211_FLAG_NEED_RTNL,
7067 .cmd = NL80211_CMD_ASSOCIATE,
7068 .doit = nl80211_associate,
7069 .policy = nl80211_policy,
7070 .flags = GENL_ADMIN_PERM,
7071 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7072 NL80211_FLAG_NEED_RTNL,
7075 .cmd = NL80211_CMD_DEAUTHENTICATE,
7076 .doit = nl80211_deauthenticate,
7077 .policy = nl80211_policy,
7078 .flags = GENL_ADMIN_PERM,
7079 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7080 NL80211_FLAG_NEED_RTNL,
7083 .cmd = NL80211_CMD_DISASSOCIATE,
7084 .doit = nl80211_disassociate,
7085 .policy = nl80211_policy,
7086 .flags = GENL_ADMIN_PERM,
7087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7088 NL80211_FLAG_NEED_RTNL,
7091 .cmd = NL80211_CMD_JOIN_IBSS,
7092 .doit = nl80211_join_ibss,
7093 .policy = nl80211_policy,
7094 .flags = GENL_ADMIN_PERM,
7095 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7096 NL80211_FLAG_NEED_RTNL,
7099 .cmd = NL80211_CMD_LEAVE_IBSS,
7100 .doit = nl80211_leave_ibss,
7101 .policy = nl80211_policy,
7102 .flags = GENL_ADMIN_PERM,
7103 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7104 NL80211_FLAG_NEED_RTNL,
7106 #ifdef CONFIG_NL80211_TESTMODE
7108 .cmd = NL80211_CMD_TESTMODE,
7109 .doit = nl80211_testmode_do,
7110 .dumpit = nl80211_testmode_dump,
7111 .policy = nl80211_policy,
7112 .flags = GENL_ADMIN_PERM,
7113 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7114 NL80211_FLAG_NEED_RTNL,
7118 .cmd = NL80211_CMD_CONNECT,
7119 .doit = nl80211_connect,
7120 .policy = nl80211_policy,
7121 .flags = GENL_ADMIN_PERM,
7122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7123 NL80211_FLAG_NEED_RTNL,
7126 .cmd = NL80211_CMD_DISCONNECT,
7127 .doit = nl80211_disconnect,
7128 .policy = nl80211_policy,
7129 .flags = GENL_ADMIN_PERM,
7130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7131 NL80211_FLAG_NEED_RTNL,
7134 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7135 .doit = nl80211_wiphy_netns,
7136 .policy = nl80211_policy,
7137 .flags = GENL_ADMIN_PERM,
7138 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7139 NL80211_FLAG_NEED_RTNL,
7142 .cmd = NL80211_CMD_GET_SURVEY,
7143 .policy = nl80211_policy,
7144 .dumpit = nl80211_dump_survey,
7147 .cmd = NL80211_CMD_SET_PMKSA,
7148 .doit = nl80211_setdel_pmksa,
7149 .policy = nl80211_policy,
7150 .flags = GENL_ADMIN_PERM,
7151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7152 NL80211_FLAG_NEED_RTNL,
7155 .cmd = NL80211_CMD_DEL_PMKSA,
7156 .doit = nl80211_setdel_pmksa,
7157 .policy = nl80211_policy,
7158 .flags = GENL_ADMIN_PERM,
7159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7160 NL80211_FLAG_NEED_RTNL,
7163 .cmd = NL80211_CMD_FLUSH_PMKSA,
7164 .doit = nl80211_flush_pmksa,
7165 .policy = nl80211_policy,
7166 .flags = GENL_ADMIN_PERM,
7167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7168 NL80211_FLAG_NEED_RTNL,
7171 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7172 .doit = nl80211_remain_on_channel,
7173 .policy = nl80211_policy,
7174 .flags = GENL_ADMIN_PERM,
7175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7176 NL80211_FLAG_NEED_RTNL,
7179 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7180 .doit = nl80211_cancel_remain_on_channel,
7181 .policy = nl80211_policy,
7182 .flags = GENL_ADMIN_PERM,
7183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7184 NL80211_FLAG_NEED_RTNL,
7187 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7188 .doit = nl80211_set_tx_bitrate_mask,
7189 .policy = nl80211_policy,
7190 .flags = GENL_ADMIN_PERM,
7191 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7192 NL80211_FLAG_NEED_RTNL,
7195 .cmd = NL80211_CMD_REGISTER_FRAME,
7196 .doit = nl80211_register_mgmt,
7197 .policy = nl80211_policy,
7198 .flags = GENL_ADMIN_PERM,
7199 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7200 NL80211_FLAG_NEED_RTNL,
7203 .cmd = NL80211_CMD_FRAME,
7204 .doit = nl80211_tx_mgmt,
7205 .policy = nl80211_policy,
7206 .flags = GENL_ADMIN_PERM,
7207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7208 NL80211_FLAG_NEED_RTNL,
7211 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7212 .doit = nl80211_tx_mgmt_cancel_wait,
7213 .policy = nl80211_policy,
7214 .flags = GENL_ADMIN_PERM,
7215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7216 NL80211_FLAG_NEED_RTNL,
7219 .cmd = NL80211_CMD_SET_POWER_SAVE,
7220 .doit = nl80211_set_power_save,
7221 .policy = nl80211_policy,
7222 .flags = GENL_ADMIN_PERM,
7223 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7224 NL80211_FLAG_NEED_RTNL,
7227 .cmd = NL80211_CMD_GET_POWER_SAVE,
7228 .doit = nl80211_get_power_save,
7229 .policy = nl80211_policy,
7230 /* can be retrieved by unprivileged users */
7231 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7232 NL80211_FLAG_NEED_RTNL,
7235 .cmd = NL80211_CMD_SET_CQM,
7236 .doit = nl80211_set_cqm,
7237 .policy = nl80211_policy,
7238 .flags = GENL_ADMIN_PERM,
7239 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7240 NL80211_FLAG_NEED_RTNL,
7243 .cmd = NL80211_CMD_SET_CHANNEL,
7244 .doit = nl80211_set_channel,
7245 .policy = nl80211_policy,
7246 .flags = GENL_ADMIN_PERM,
7247 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7248 NL80211_FLAG_NEED_RTNL,
7251 .cmd = NL80211_CMD_SET_WDS_PEER,
7252 .doit = nl80211_set_wds_peer,
7253 .policy = nl80211_policy,
7254 .flags = GENL_ADMIN_PERM,
7255 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7256 NL80211_FLAG_NEED_RTNL,
7259 .cmd = NL80211_CMD_JOIN_MESH,
7260 .doit = nl80211_join_mesh,
7261 .policy = nl80211_policy,
7262 .flags = GENL_ADMIN_PERM,
7263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7264 NL80211_FLAG_NEED_RTNL,
7267 .cmd = NL80211_CMD_LEAVE_MESH,
7268 .doit = nl80211_leave_mesh,
7269 .policy = nl80211_policy,
7270 .flags = GENL_ADMIN_PERM,
7271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7272 NL80211_FLAG_NEED_RTNL,
7276 .cmd = NL80211_CMD_GET_WOWLAN,
7277 .doit = nl80211_get_wowlan,
7278 .policy = nl80211_policy,
7279 /* can be retrieved by unprivileged users */
7280 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7281 NL80211_FLAG_NEED_RTNL,
7284 .cmd = NL80211_CMD_SET_WOWLAN,
7285 .doit = nl80211_set_wowlan,
7286 .policy = nl80211_policy,
7287 .flags = GENL_ADMIN_PERM,
7288 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7289 NL80211_FLAG_NEED_RTNL,
7293 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7294 .doit = nl80211_set_rekey_data,
7295 .policy = nl80211_policy,
7296 .flags = GENL_ADMIN_PERM,
7297 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7298 NL80211_FLAG_NEED_RTNL,
7301 .cmd = NL80211_CMD_TDLS_MGMT,
7302 .doit = nl80211_tdls_mgmt,
7303 .policy = nl80211_policy,
7304 .flags = GENL_ADMIN_PERM,
7305 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7306 NL80211_FLAG_NEED_RTNL,
7309 .cmd = NL80211_CMD_TDLS_OPER,
7310 .doit = nl80211_tdls_oper,
7311 .policy = nl80211_policy,
7312 .flags = GENL_ADMIN_PERM,
7313 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7314 NL80211_FLAG_NEED_RTNL,
7317 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7318 .doit = nl80211_register_unexpected_frame,
7319 .policy = nl80211_policy,
7320 .flags = GENL_ADMIN_PERM,
7321 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7322 NL80211_FLAG_NEED_RTNL,
7325 .cmd = NL80211_CMD_PROBE_CLIENT,
7326 .doit = nl80211_probe_client,
7327 .policy = nl80211_policy,
7328 .flags = GENL_ADMIN_PERM,
7329 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7330 NL80211_FLAG_NEED_RTNL,
7333 .cmd = NL80211_CMD_REGISTER_BEACONS,
7334 .doit = nl80211_register_beacons,
7335 .policy = nl80211_policy,
7336 .flags = GENL_ADMIN_PERM,
7337 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7338 NL80211_FLAG_NEED_RTNL,
7341 .cmd = NL80211_CMD_SET_NOACK_MAP,
7342 .doit = nl80211_set_noack_map,
7343 .policy = nl80211_policy,
7344 .flags = GENL_ADMIN_PERM,
7345 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7346 NL80211_FLAG_NEED_RTNL,
7351 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7355 /* multicast groups */
7356 static struct genl_multicast_group nl80211_config_mcgrp = {
7359 static struct genl_multicast_group nl80211_scan_mcgrp = {
7362 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7363 .name = "regulatory",
7366 /* notification functions */
7368 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7370 struct sk_buff *msg;
7372 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7376 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7381 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7382 nl80211_config_mcgrp.id, GFP_KERNEL);
7385 static int nl80211_add_scan_req(struct sk_buff *msg,
7386 struct cfg80211_registered_device *rdev)
7388 struct cfg80211_scan_request *req = rdev->scan_req;
7389 struct nlattr *nest;
7392 ASSERT_RDEV_LOCK(rdev);
7397 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7399 goto nla_put_failure;
7400 for (i = 0; i < req->n_ssids; i++) {
7401 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7402 goto nla_put_failure;
7404 nla_nest_end(msg, nest);
7406 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7408 goto nla_put_failure;
7409 for (i = 0; i < req->n_channels; i++) {
7410 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7411 goto nla_put_failure;
7413 nla_nest_end(msg, nest);
7416 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7417 goto nla_put_failure;
7424 static int nl80211_send_scan_msg(struct sk_buff *msg,
7425 struct cfg80211_registered_device *rdev,
7426 struct net_device *netdev,
7427 u32 pid, u32 seq, int flags,
7432 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7436 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7437 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7438 goto nla_put_failure;
7440 /* ignore errors and send incomplete event anyway */
7441 nl80211_add_scan_req(msg, rdev);
7443 return genlmsg_end(msg, hdr);
7446 genlmsg_cancel(msg, hdr);
7451 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7452 struct cfg80211_registered_device *rdev,
7453 struct net_device *netdev,
7454 u32 pid, u32 seq, int flags, u32 cmd)
7458 hdr = nl80211hdr_put(msg, pid, seq, flags, cmd);
7462 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7463 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7464 goto nla_put_failure;
7466 return genlmsg_end(msg, hdr);
7469 genlmsg_cancel(msg, hdr);
7473 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7474 struct net_device *netdev)
7476 struct sk_buff *msg;
7478 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7482 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7483 NL80211_CMD_TRIGGER_SCAN) < 0) {
7488 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7489 nl80211_scan_mcgrp.id, GFP_KERNEL);
7492 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7493 struct net_device *netdev)
7495 struct sk_buff *msg;
7497 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7501 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7502 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7507 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7508 nl80211_scan_mcgrp.id, GFP_KERNEL);
7511 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7512 struct net_device *netdev)
7514 struct sk_buff *msg;
7516 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7520 if (nl80211_send_scan_msg(msg, rdev, netdev, 0, 0, 0,
7521 NL80211_CMD_SCAN_ABORTED) < 0) {
7526 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7527 nl80211_scan_mcgrp.id, GFP_KERNEL);
7530 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7531 struct net_device *netdev)
7533 struct sk_buff *msg;
7535 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7539 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7540 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7545 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7546 nl80211_scan_mcgrp.id, GFP_KERNEL);
7549 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7550 struct net_device *netdev, u32 cmd)
7552 struct sk_buff *msg;
7554 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7558 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7563 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7564 nl80211_scan_mcgrp.id, GFP_KERNEL);
7568 * This can happen on global regulatory changes or device specific settings
7569 * based on custom world regulatory domains.
7571 void nl80211_send_reg_change_event(struct regulatory_request *request)
7573 struct sk_buff *msg;
7576 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7580 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7586 /* Userspace can always count this one always being set */
7587 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7588 goto nla_put_failure;
7590 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7591 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7592 NL80211_REGDOM_TYPE_WORLD))
7593 goto nla_put_failure;
7594 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7595 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7596 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7597 goto nla_put_failure;
7598 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7599 request->intersect) {
7600 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7601 NL80211_REGDOM_TYPE_INTERSECTION))
7602 goto nla_put_failure;
7604 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7605 NL80211_REGDOM_TYPE_COUNTRY) ||
7606 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7608 goto nla_put_failure;
7611 if (wiphy_idx_valid(request->wiphy_idx) &&
7612 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7613 goto nla_put_failure;
7615 genlmsg_end(msg, hdr);
7618 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7625 genlmsg_cancel(msg, hdr);
7629 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7630 struct net_device *netdev,
7631 const u8 *buf, size_t len,
7632 enum nl80211_commands cmd, gfp_t gfp)
7634 struct sk_buff *msg;
7637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7641 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7647 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7648 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7649 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7650 goto nla_put_failure;
7652 genlmsg_end(msg, hdr);
7654 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7655 nl80211_mlme_mcgrp.id, gfp);
7659 genlmsg_cancel(msg, hdr);
7663 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7664 struct net_device *netdev, const u8 *buf,
7665 size_t len, gfp_t gfp)
7667 nl80211_send_mlme_event(rdev, netdev, buf, len,
7668 NL80211_CMD_AUTHENTICATE, gfp);
7671 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7672 struct net_device *netdev, const u8 *buf,
7673 size_t len, gfp_t gfp)
7675 nl80211_send_mlme_event(rdev, netdev, buf, len,
7676 NL80211_CMD_ASSOCIATE, gfp);
7679 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7680 struct net_device *netdev, const u8 *buf,
7681 size_t len, gfp_t gfp)
7683 nl80211_send_mlme_event(rdev, netdev, buf, len,
7684 NL80211_CMD_DEAUTHENTICATE, gfp);
7687 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7688 struct net_device *netdev, const u8 *buf,
7689 size_t len, gfp_t gfp)
7691 nl80211_send_mlme_event(rdev, netdev, buf, len,
7692 NL80211_CMD_DISASSOCIATE, gfp);
7695 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7696 struct net_device *netdev, const u8 *buf,
7697 size_t len, gfp_t gfp)
7699 nl80211_send_mlme_event(rdev, netdev, buf, len,
7700 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7703 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7704 struct net_device *netdev, const u8 *buf,
7705 size_t len, gfp_t gfp)
7707 nl80211_send_mlme_event(rdev, netdev, buf, len,
7708 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7711 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7712 struct net_device *netdev, int cmd,
7713 const u8 *addr, gfp_t gfp)
7715 struct sk_buff *msg;
7718 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7722 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7728 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7729 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7730 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
7731 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
7732 goto nla_put_failure;
7734 genlmsg_end(msg, hdr);
7736 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7737 nl80211_mlme_mcgrp.id, gfp);
7741 genlmsg_cancel(msg, hdr);
7745 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
7746 struct net_device *netdev, const u8 *addr,
7749 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
7753 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
7754 struct net_device *netdev, const u8 *addr,
7757 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
7761 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
7762 struct net_device *netdev, const u8 *bssid,
7763 const u8 *req_ie, size_t req_ie_len,
7764 const u8 *resp_ie, size_t resp_ie_len,
7765 u16 status, gfp_t gfp)
7767 struct sk_buff *msg;
7770 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
7780 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7781 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7782 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
7783 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
7785 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7787 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7788 goto nla_put_failure;
7790 genlmsg_end(msg, hdr);
7792 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7793 nl80211_mlme_mcgrp.id, gfp);
7797 genlmsg_cancel(msg, hdr);
7802 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
7803 struct net_device *netdev, const u8 *bssid,
7804 const u8 *req_ie, size_t req_ie_len,
7805 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
7807 struct sk_buff *msg;
7810 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
7814 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
7820 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7821 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7822 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
7824 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
7826 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
7827 goto nla_put_failure;
7829 genlmsg_end(msg, hdr);
7831 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7832 nl80211_mlme_mcgrp.id, gfp);
7836 genlmsg_cancel(msg, hdr);
7841 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
7842 struct net_device *netdev, u16 reason,
7843 const u8 *ie, size_t ie_len, bool from_ap)
7845 struct sk_buff *msg;
7848 msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
7852 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
7858 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7859 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7860 (from_ap && reason &&
7861 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
7863 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
7864 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
7865 goto nla_put_failure;
7867 genlmsg_end(msg, hdr);
7869 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7870 nl80211_mlme_mcgrp.id, GFP_KERNEL);
7874 genlmsg_cancel(msg, hdr);
7879 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
7880 struct net_device *netdev, const u8 *bssid,
7883 struct sk_buff *msg;
7886 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7890 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
7896 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7897 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7898 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
7899 goto nla_put_failure;
7901 genlmsg_end(msg, hdr);
7903 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7904 nl80211_mlme_mcgrp.id, gfp);
7908 genlmsg_cancel(msg, hdr);
7912 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
7913 struct net_device *netdev,
7914 const u8 *macaddr, const u8* ie, u8 ie_len,
7917 struct sk_buff *msg;
7920 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7924 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
7930 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7931 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7932 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
7934 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
7935 goto nla_put_failure;
7937 genlmsg_end(msg, hdr);
7939 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7940 nl80211_mlme_mcgrp.id, gfp);
7944 genlmsg_cancel(msg, hdr);
7948 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
7949 struct net_device *netdev, const u8 *addr,
7950 enum nl80211_key_type key_type, int key_id,
7951 const u8 *tsc, gfp_t gfp)
7953 struct sk_buff *msg;
7956 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7960 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
7966 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7967 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7968 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
7969 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
7971 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
7972 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
7973 goto nla_put_failure;
7975 genlmsg_end(msg, hdr);
7977 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7978 nl80211_mlme_mcgrp.id, gfp);
7982 genlmsg_cancel(msg, hdr);
7986 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
7987 struct ieee80211_channel *channel_before,
7988 struct ieee80211_channel *channel_after)
7990 struct sk_buff *msg;
7992 struct nlattr *nl_freq;
7994 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
7998 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8005 * Since we are applying the beacon hint to a wiphy we know its
8006 * wiphy_idx is valid
8008 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8009 goto nla_put_failure;
8012 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8014 goto nla_put_failure;
8015 if (nl80211_msg_put_channel(msg, channel_before))
8016 goto nla_put_failure;
8017 nla_nest_end(msg, nl_freq);
8020 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8022 goto nla_put_failure;
8023 if (nl80211_msg_put_channel(msg, channel_after))
8024 goto nla_put_failure;
8025 nla_nest_end(msg, nl_freq);
8027 genlmsg_end(msg, hdr);
8030 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8037 genlmsg_cancel(msg, hdr);
8041 static void nl80211_send_remain_on_chan_event(
8042 int cmd, struct cfg80211_registered_device *rdev,
8043 struct net_device *netdev, u64 cookie,
8044 struct ieee80211_channel *chan,
8045 enum nl80211_channel_type channel_type,
8046 unsigned int duration, gfp_t gfp)
8048 struct sk_buff *msg;
8051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8055 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8061 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8062 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8063 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8064 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8065 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8066 goto nla_put_failure;
8068 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8069 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8070 goto nla_put_failure;
8072 genlmsg_end(msg, hdr);
8074 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8075 nl80211_mlme_mcgrp.id, gfp);
8079 genlmsg_cancel(msg, hdr);
8083 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8084 struct net_device *netdev, u64 cookie,
8085 struct ieee80211_channel *chan,
8086 enum nl80211_channel_type channel_type,
8087 unsigned int duration, gfp_t gfp)
8089 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8090 rdev, netdev, cookie, chan,
8091 channel_type, duration, gfp);
8094 void nl80211_send_remain_on_channel_cancel(
8095 struct cfg80211_registered_device *rdev, struct net_device *netdev,
8096 u64 cookie, struct ieee80211_channel *chan,
8097 enum nl80211_channel_type channel_type, gfp_t gfp)
8099 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8100 rdev, netdev, cookie, chan,
8101 channel_type, 0, gfp);
8104 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8105 struct net_device *dev, const u8 *mac_addr,
8106 struct station_info *sinfo, gfp_t gfp)
8108 struct sk_buff *msg;
8110 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8114 if (nl80211_send_station(msg, 0, 0, 0,
8115 rdev, dev, mac_addr, sinfo) < 0) {
8120 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8121 nl80211_mlme_mcgrp.id, gfp);
8124 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8125 struct net_device *dev, const u8 *mac_addr,
8128 struct sk_buff *msg;
8131 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8135 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8141 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8142 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8143 goto nla_put_failure;
8145 genlmsg_end(msg, hdr);
8147 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8148 nl80211_mlme_mcgrp.id, gfp);
8152 genlmsg_cancel(msg, hdr);
8156 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8157 const u8 *addr, gfp_t gfp)
8159 struct wireless_dev *wdev = dev->ieee80211_ptr;
8160 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8161 struct sk_buff *msg;
8164 u32 nlpid = ACCESS_ONCE(wdev->ap_unexpected_nlpid);
8169 msg = nlmsg_new(100, gfp);
8173 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8179 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8180 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8181 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8182 goto nla_put_failure;
8184 err = genlmsg_end(msg, hdr);
8190 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8194 genlmsg_cancel(msg, hdr);
8199 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8201 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8205 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8206 const u8 *addr, gfp_t gfp)
8208 return __nl80211_unexpected_frame(dev,
8209 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8213 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8214 struct net_device *netdev, u32 nlpid,
8215 int freq, int sig_dbm,
8216 const u8 *buf, size_t len, gfp_t gfp)
8218 struct sk_buff *msg;
8221 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8225 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8231 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8232 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8233 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8235 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8236 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8237 goto nla_put_failure;
8239 genlmsg_end(msg, hdr);
8241 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8244 genlmsg_cancel(msg, hdr);
8249 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8250 struct net_device *netdev, u64 cookie,
8251 const u8 *buf, size_t len, bool ack,
8254 struct sk_buff *msg;
8257 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8261 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8267 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8268 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8269 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8270 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8271 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8272 goto nla_put_failure;
8274 genlmsg_end(msg, hdr);
8276 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8280 genlmsg_cancel(msg, hdr);
8285 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8286 struct net_device *netdev,
8287 enum nl80211_cqm_rssi_threshold_event rssi_event,
8290 struct sk_buff *msg;
8291 struct nlattr *pinfoattr;
8294 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8298 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8304 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8305 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8306 goto nla_put_failure;
8308 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8310 goto nla_put_failure;
8312 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8314 goto nla_put_failure;
8316 nla_nest_end(msg, pinfoattr);
8318 genlmsg_end(msg, hdr);
8320 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8321 nl80211_mlme_mcgrp.id, gfp);
8325 genlmsg_cancel(msg, hdr);
8329 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8330 struct net_device *netdev, const u8 *bssid,
8331 const u8 *replay_ctr, gfp_t gfp)
8333 struct sk_buff *msg;
8334 struct nlattr *rekey_attr;
8337 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8341 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8347 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8348 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8349 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8350 goto nla_put_failure;
8352 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8354 goto nla_put_failure;
8356 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8357 NL80211_REPLAY_CTR_LEN, replay_ctr))
8358 goto nla_put_failure;
8360 nla_nest_end(msg, rekey_attr);
8362 genlmsg_end(msg, hdr);
8364 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8365 nl80211_mlme_mcgrp.id, gfp);
8369 genlmsg_cancel(msg, hdr);
8373 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8374 struct net_device *netdev, int index,
8375 const u8 *bssid, bool preauth, gfp_t gfp)
8377 struct sk_buff *msg;
8378 struct nlattr *attr;
8381 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8385 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8391 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8392 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8393 goto nla_put_failure;
8395 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8397 goto nla_put_failure;
8399 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8400 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8402 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8403 goto nla_put_failure;
8405 nla_nest_end(msg, attr);
8407 genlmsg_end(msg, hdr);
8409 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8410 nl80211_mlme_mcgrp.id, gfp);
8414 genlmsg_cancel(msg, hdr);
8418 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8419 struct net_device *netdev, int freq,
8420 enum nl80211_channel_type type, gfp_t gfp)
8422 struct sk_buff *msg;
8425 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8429 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8435 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8436 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8437 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8438 goto nla_put_failure;
8440 genlmsg_end(msg, hdr);
8442 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8443 nl80211_mlme_mcgrp.id, gfp);
8447 genlmsg_cancel(msg, hdr);
8452 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8453 struct net_device *netdev, const u8 *peer,
8454 u32 num_packets, gfp_t gfp)
8456 struct sk_buff *msg;
8457 struct nlattr *pinfoattr;
8460 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8464 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8470 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8471 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8472 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8473 goto nla_put_failure;
8475 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8477 goto nla_put_failure;
8479 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8480 goto nla_put_failure;
8482 nla_nest_end(msg, pinfoattr);
8484 genlmsg_end(msg, hdr);
8486 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8487 nl80211_mlme_mcgrp.id, gfp);
8491 genlmsg_cancel(msg, hdr);
8495 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8496 u64 cookie, bool acked, gfp_t gfp)
8498 struct wireless_dev *wdev = dev->ieee80211_ptr;
8499 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8500 struct sk_buff *msg;
8504 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8515 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8516 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8517 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8518 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8519 goto nla_put_failure;
8521 err = genlmsg_end(msg, hdr);
8527 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8528 nl80211_mlme_mcgrp.id, gfp);
8532 genlmsg_cancel(msg, hdr);
8535 EXPORT_SYMBOL(cfg80211_probe_status);
8537 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8538 const u8 *frame, size_t len,
8539 int freq, int sig_dbm, gfp_t gfp)
8541 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8542 struct sk_buff *msg;
8544 u32 nlpid = ACCESS_ONCE(rdev->ap_beacons_nlpid);
8549 msg = nlmsg_new(len + 100, gfp);
8553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8561 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8563 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8564 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8565 goto nla_put_failure;
8567 genlmsg_end(msg, hdr);
8569 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlpid);
8573 genlmsg_cancel(msg, hdr);
8576 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8578 static int nl80211_netlink_notify(struct notifier_block * nb,
8579 unsigned long state,
8582 struct netlink_notify *notify = _notify;
8583 struct cfg80211_registered_device *rdev;
8584 struct wireless_dev *wdev;
8586 if (state != NETLINK_URELEASE)
8591 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8592 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
8593 cfg80211_mlme_unregister_socket(wdev, notify->pid);
8594 if (rdev->ap_beacons_nlpid == notify->pid)
8595 rdev->ap_beacons_nlpid = 0;
8603 static struct notifier_block nl80211_netlink_notifier = {
8604 .notifier_call = nl80211_netlink_notify,
8607 /* initialisation/exit functions */
8609 int nl80211_init(void)
8613 err = genl_register_family_with_ops(&nl80211_fam,
8614 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8618 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
8622 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
8626 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
8630 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
8634 #ifdef CONFIG_NL80211_TESTMODE
8635 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
8640 err = netlink_register_notifier(&nl80211_netlink_notifier);
8646 genl_unregister_family(&nl80211_fam);
8650 void nl80211_exit(void)
8652 netlink_unregister_notifier(&nl80211_netlink_notifier);
8653 genl_unregister_family(&nl80211_fam);