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>
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 },
227 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
229 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
230 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
233 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
234 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
236 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
239 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
240 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
243 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
244 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
246 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
247 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
248 .len = WLAN_MAX_KEY_LEN },
249 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
250 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
251 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
252 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
253 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
255 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
256 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
257 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
258 .len = IEEE80211_MAX_DATA_LEN },
259 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_DATA_LEN },
261 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
262 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
263 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
264 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
265 .len = NL80211_MAX_SUPP_RATES },
266 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
267 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
268 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
269 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
270 .len = IEEE80211_MAX_MESH_ID_LEN },
271 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
273 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
274 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
276 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
277 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
280 .len = NL80211_MAX_SUPP_RATES },
281 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
283 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
286 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
288 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
289 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_DATA_LEN },
291 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
292 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
294 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
295 .len = IEEE80211_MAX_SSID_LEN },
296 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
297 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
298 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
299 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
301 [NL80211_ATTR_STA_FLAGS2] = {
302 .len = sizeof(struct nl80211_sta_flag_update),
304 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
305 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
306 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
307 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
308 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
309 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
310 [NL80211_ATTR_PID] = { .type = NLA_U32 },
311 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
312 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
313 .len = WLAN_PMKID_LEN },
314 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
315 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
316 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
317 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
318 .len = IEEE80211_MAX_DATA_LEN },
319 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
320 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
321 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
322 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
323 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
324 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
325 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
326 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
327 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
328 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
329 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
330 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
331 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
332 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
333 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
334 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
335 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
336 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
337 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
338 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
339 .len = IEEE80211_MAX_DATA_LEN },
340 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
341 .len = IEEE80211_MAX_DATA_LEN },
342 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
344 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
345 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
346 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
350 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
351 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
352 .len = IEEE80211_MAX_DATA_LEN },
353 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
354 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
355 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
356 .len = NL80211_HT_CAPABILITY_LEN
358 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
359 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
360 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
361 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
362 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
363 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
364 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
365 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
368 /* policy for the key attributes */
369 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
370 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
371 [NL80211_KEY_IDX] = { .type = NLA_U8 },
372 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
373 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
374 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
375 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
376 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
377 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
380 /* policy for the key default flags */
381 static const struct nla_policy
382 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
383 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
384 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
387 /* policy for WoWLAN attributes */
388 static const struct nla_policy
389 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
390 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
391 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
392 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
393 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
394 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
396 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
400 /* policy for GTK rekey offload attributes */
401 static const struct nla_policy
402 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
403 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
404 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
405 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
408 static const struct nla_policy
409 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
410 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
411 .len = IEEE80211_MAX_SSID_LEN },
412 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
415 /* ifidx get helper */
416 static int nl80211_get_ifidx(struct netlink_callback *cb)
420 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
421 nl80211_fam.attrbuf, nl80211_fam.maxattr,
426 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
429 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
435 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
436 struct netlink_callback *cb,
437 struct cfg80211_registered_device **rdev,
438 struct net_device **dev)
440 int ifidx = cb->args[0];
444 ifidx = nl80211_get_ifidx(cb);
452 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
458 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
460 err = PTR_ERR(*rdev);
470 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
472 cfg80211_unlock_rdev(rdev);
477 static bool is_valid_ie_attr(const struct nlattr *attr)
485 pos = nla_data(attr);
506 /* message building helper */
507 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
510 /* since there is no private header just add the generic one */
511 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
514 static int nl80211_msg_put_channel(struct sk_buff *msg,
515 struct ieee80211_channel *chan)
517 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
519 goto nla_put_failure;
521 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
522 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
523 goto nla_put_failure;
524 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
525 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
526 goto nla_put_failure;
527 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
528 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
529 goto nla_put_failure;
530 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
531 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
532 goto nla_put_failure;
534 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
535 DBM_TO_MBM(chan->max_power)))
536 goto nla_put_failure;
544 /* netlink command implementations */
551 bool def_uni, def_multi;
554 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
556 struct nlattr *tb[NL80211_KEY_MAX + 1];
557 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
562 k->def = !!tb[NL80211_KEY_DEFAULT];
563 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
572 if (tb[NL80211_KEY_IDX])
573 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
575 if (tb[NL80211_KEY_DATA]) {
576 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
577 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
580 if (tb[NL80211_KEY_SEQ]) {
581 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
582 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
585 if (tb[NL80211_KEY_CIPHER])
586 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
588 if (tb[NL80211_KEY_TYPE]) {
589 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
590 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
594 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
595 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
596 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
597 tb[NL80211_KEY_DEFAULT_TYPES],
598 nl80211_key_default_policy);
602 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
603 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
609 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
611 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
612 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
613 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
616 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
617 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
618 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
621 if (info->attrs[NL80211_ATTR_KEY_IDX])
622 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
624 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
625 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
627 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
628 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
637 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
638 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
639 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
643 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
644 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
645 int err = nla_parse_nested(
646 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
647 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
648 nl80211_key_default_policy);
652 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
653 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
659 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
663 memset(k, 0, sizeof(*k));
667 if (info->attrs[NL80211_ATTR_KEY])
668 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
670 err = nl80211_parse_key_old(info, k);
675 if (k->def && k->defmgmt)
679 if (k->def_uni || !k->def_multi)
685 if (k->idx < 4 || k->idx > 5)
688 if (k->idx < 0 || k->idx > 3)
691 if (k->idx < 0 || k->idx > 5)
699 static struct cfg80211_cached_keys *
700 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
701 struct nlattr *keys, bool *no_ht)
703 struct key_parse parse;
705 struct cfg80211_cached_keys *result;
706 int rem, err, def = 0;
708 result = kzalloc(sizeof(*result), GFP_KERNEL);
710 return ERR_PTR(-ENOMEM);
713 result->defmgmt = -1;
715 nla_for_each_nested(key, keys, rem) {
716 memset(&parse, 0, sizeof(parse));
719 err = nl80211_parse_key_new(key, &parse);
725 if (parse.idx < 0 || parse.idx > 4)
731 result->def = parse.idx;
732 if (!parse.def_uni || !parse.def_multi)
734 } else if (parse.defmgmt)
736 err = cfg80211_validate_key_settings(rdev, &parse.p,
737 parse.idx, false, NULL);
740 result->params[parse.idx].cipher = parse.p.cipher;
741 result->params[parse.idx].key_len = parse.p.key_len;
742 result->params[parse.idx].key = result->data[parse.idx];
743 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
745 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
746 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
758 static int nl80211_key_allowed(struct wireless_dev *wdev)
760 ASSERT_WDEV_LOCK(wdev);
762 switch (wdev->iftype) {
763 case NL80211_IFTYPE_AP:
764 case NL80211_IFTYPE_AP_VLAN:
765 case NL80211_IFTYPE_P2P_GO:
766 case NL80211_IFTYPE_MESH_POINT:
768 case NL80211_IFTYPE_ADHOC:
769 if (!wdev->current_bss)
772 case NL80211_IFTYPE_STATION:
773 case NL80211_IFTYPE_P2P_CLIENT:
774 if (wdev->sme_state != CFG80211_SME_CONNECTED)
784 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
786 struct nlattr *nl_modes = nla_nest_start(msg, attr);
790 goto nla_put_failure;
794 if ((ifmodes & 1) && nla_put_flag(msg, i))
795 goto nla_put_failure;
800 nla_nest_end(msg, nl_modes);
807 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
810 struct nlattr *nl_combis;
813 nl_combis = nla_nest_start(msg,
814 NL80211_ATTR_INTERFACE_COMBINATIONS);
816 goto nla_put_failure;
818 for (i = 0; i < wiphy->n_iface_combinations; i++) {
819 const struct ieee80211_iface_combination *c;
820 struct nlattr *nl_combi, *nl_limits;
822 c = &wiphy->iface_combinations[i];
824 nl_combi = nla_nest_start(msg, i + 1);
826 goto nla_put_failure;
828 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
830 goto nla_put_failure;
832 for (j = 0; j < c->n_limits; j++) {
833 struct nlattr *nl_limit;
835 nl_limit = nla_nest_start(msg, j + 1);
837 goto nla_put_failure;
838 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
840 goto nla_put_failure;
841 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
843 goto nla_put_failure;
844 nla_nest_end(msg, nl_limit);
847 nla_nest_end(msg, nl_limits);
849 if (c->beacon_int_infra_match &&
850 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
851 goto nla_put_failure;
852 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
853 c->num_different_channels) ||
854 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
856 goto nla_put_failure;
858 nla_nest_end(msg, nl_combi);
861 nla_nest_end(msg, nl_combis);
868 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
869 struct cfg80211_registered_device *dev)
872 struct nlattr *nl_bands, *nl_band;
873 struct nlattr *nl_freqs, *nl_freq;
874 struct nlattr *nl_rates, *nl_rate;
875 struct nlattr *nl_cmds;
876 enum ieee80211_band band;
877 struct ieee80211_channel *chan;
878 struct ieee80211_rate *rate;
880 const struct ieee80211_txrx_stypes *mgmt_stypes =
881 dev->wiphy.mgmt_stypes;
883 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
888 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
889 nla_put_u32(msg, NL80211_ATTR_GENERATION,
890 cfg80211_rdev_list_generation) ||
891 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
892 dev->wiphy.retry_short) ||
893 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
894 dev->wiphy.retry_long) ||
895 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
896 dev->wiphy.frag_threshold) ||
897 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
898 dev->wiphy.rts_threshold) ||
899 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
900 dev->wiphy.coverage_class) ||
901 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
902 dev->wiphy.max_scan_ssids) ||
903 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
904 dev->wiphy.max_sched_scan_ssids) ||
905 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
906 dev->wiphy.max_scan_ie_len) ||
907 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
908 dev->wiphy.max_sched_scan_ie_len) ||
909 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
910 dev->wiphy.max_match_sets))
911 goto nla_put_failure;
913 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
914 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
915 goto nla_put_failure;
916 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
917 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
918 goto nla_put_failure;
919 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
920 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
921 goto nla_put_failure;
922 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
923 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
924 goto nla_put_failure;
925 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
926 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
927 goto nla_put_failure;
928 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
929 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
930 goto nla_put_failure;
932 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
933 sizeof(u32) * dev->wiphy.n_cipher_suites,
934 dev->wiphy.cipher_suites))
935 goto nla_put_failure;
937 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
938 dev->wiphy.max_num_pmkids))
939 goto nla_put_failure;
941 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
942 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
943 goto nla_put_failure;
945 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
946 dev->wiphy.available_antennas_tx) ||
947 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
948 dev->wiphy.available_antennas_rx))
949 goto nla_put_failure;
951 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
952 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
953 dev->wiphy.probe_resp_offload))
954 goto nla_put_failure;
956 if ((dev->wiphy.available_antennas_tx ||
957 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
958 u32 tx_ant = 0, rx_ant = 0;
960 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
962 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
964 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
966 goto nla_put_failure;
970 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
971 dev->wiphy.interface_modes))
972 goto nla_put_failure;
974 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
976 goto nla_put_failure;
978 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
979 if (!dev->wiphy.bands[band])
982 nl_band = nla_nest_start(msg, band);
984 goto nla_put_failure;
987 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
988 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
989 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
990 &dev->wiphy.bands[band]->ht_cap.mcs) ||
991 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
992 dev->wiphy.bands[band]->ht_cap.cap) ||
993 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
994 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
995 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
996 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
997 goto nla_put_failure;
1000 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1001 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1002 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1003 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1004 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1005 dev->wiphy.bands[band]->vht_cap.cap)))
1006 goto nla_put_failure;
1008 /* add frequencies */
1009 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1011 goto nla_put_failure;
1013 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1014 nl_freq = nla_nest_start(msg, i);
1016 goto nla_put_failure;
1018 chan = &dev->wiphy.bands[band]->channels[i];
1020 if (nl80211_msg_put_channel(msg, chan))
1021 goto nla_put_failure;
1023 nla_nest_end(msg, nl_freq);
1026 nla_nest_end(msg, nl_freqs);
1029 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1031 goto nla_put_failure;
1033 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1034 nl_rate = nla_nest_start(msg, i);
1036 goto nla_put_failure;
1038 rate = &dev->wiphy.bands[band]->bitrates[i];
1039 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1041 goto nla_put_failure;
1042 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1044 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1045 goto nla_put_failure;
1047 nla_nest_end(msg, nl_rate);
1050 nla_nest_end(msg, nl_rates);
1052 nla_nest_end(msg, nl_band);
1054 nla_nest_end(msg, nl_bands);
1056 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1058 goto nla_put_failure;
1061 #define CMD(op, n) \
1063 if (dev->ops->op) { \
1065 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1066 goto nla_put_failure; \
1070 CMD(add_virtual_intf, NEW_INTERFACE);
1071 CMD(change_virtual_intf, SET_INTERFACE);
1072 CMD(add_key, NEW_KEY);
1073 CMD(start_ap, START_AP);
1074 CMD(add_station, NEW_STATION);
1075 CMD(add_mpath, NEW_MPATH);
1076 CMD(update_mesh_config, SET_MESH_CONFIG);
1077 CMD(change_bss, SET_BSS);
1078 CMD(auth, AUTHENTICATE);
1079 CMD(assoc, ASSOCIATE);
1080 CMD(deauth, DEAUTHENTICATE);
1081 CMD(disassoc, DISASSOCIATE);
1082 CMD(join_ibss, JOIN_IBSS);
1083 CMD(join_mesh, JOIN_MESH);
1084 CMD(set_pmksa, SET_PMKSA);
1085 CMD(del_pmksa, DEL_PMKSA);
1086 CMD(flush_pmksa, FLUSH_PMKSA);
1087 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1088 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1089 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1090 CMD(mgmt_tx, FRAME);
1091 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1092 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1094 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1095 goto nla_put_failure;
1097 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1098 dev->ops->join_mesh) {
1100 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1101 goto nla_put_failure;
1103 CMD(set_wds_peer, SET_WDS_PEER);
1104 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1105 CMD(tdls_mgmt, TDLS_MGMT);
1106 CMD(tdls_oper, TDLS_OPER);
1108 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1109 CMD(sched_scan_start, START_SCHED_SCAN);
1110 CMD(probe_client, PROBE_CLIENT);
1111 CMD(set_noack_map, SET_NOACK_MAP);
1112 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1114 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1115 goto nla_put_failure;
1117 CMD(start_p2p_device, START_P2P_DEVICE);
1118 CMD(set_mcast_rate, SET_MCAST_RATE);
1120 #ifdef CONFIG_NL80211_TESTMODE
1121 CMD(testmode_cmd, TESTMODE);
1126 if (dev->ops->connect || dev->ops->auth) {
1128 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1129 goto nla_put_failure;
1132 if (dev->ops->disconnect || dev->ops->deauth) {
1134 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1135 goto nla_put_failure;
1138 nla_nest_end(msg, nl_cmds);
1140 if (dev->ops->remain_on_channel &&
1141 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1142 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1143 dev->wiphy.max_remain_on_channel_duration))
1144 goto nla_put_failure;
1146 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1147 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1148 goto nla_put_failure;
1152 struct nlattr *nl_ftypes, *nl_ifs;
1153 enum nl80211_iftype ift;
1155 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1157 goto nla_put_failure;
1159 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1160 nl_ftypes = nla_nest_start(msg, ift);
1162 goto nla_put_failure;
1164 stypes = mgmt_stypes[ift].tx;
1167 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1168 (i << 4) | IEEE80211_FTYPE_MGMT))
1169 goto nla_put_failure;
1173 nla_nest_end(msg, nl_ftypes);
1176 nla_nest_end(msg, nl_ifs);
1178 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1180 goto nla_put_failure;
1182 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1183 nl_ftypes = nla_nest_start(msg, ift);
1185 goto nla_put_failure;
1187 stypes = mgmt_stypes[ift].rx;
1190 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1191 (i << 4) | IEEE80211_FTYPE_MGMT))
1192 goto nla_put_failure;
1196 nla_nest_end(msg, nl_ftypes);
1198 nla_nest_end(msg, nl_ifs);
1202 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1203 struct nlattr *nl_wowlan;
1205 nl_wowlan = nla_nest_start(msg,
1206 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1208 goto nla_put_failure;
1210 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1211 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1212 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1214 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1216 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1218 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1220 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1222 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1223 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1224 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1226 goto nla_put_failure;
1227 if (dev->wiphy.wowlan.n_patterns) {
1228 struct nl80211_wowlan_pattern_support pat = {
1229 .max_patterns = dev->wiphy.wowlan.n_patterns,
1231 dev->wiphy.wowlan.pattern_min_len,
1233 dev->wiphy.wowlan.pattern_max_len,
1235 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1237 goto nla_put_failure;
1240 nla_nest_end(msg, nl_wowlan);
1244 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1245 dev->wiphy.software_iftypes))
1246 goto nla_put_failure;
1248 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1249 goto nla_put_failure;
1251 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1252 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1253 dev->wiphy.ap_sme_capa))
1254 goto nla_put_failure;
1256 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1257 dev->wiphy.features))
1258 goto nla_put_failure;
1260 if (dev->wiphy.ht_capa_mod_mask &&
1261 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1262 sizeof(*dev->wiphy.ht_capa_mod_mask),
1263 dev->wiphy.ht_capa_mod_mask))
1264 goto nla_put_failure;
1266 return genlmsg_end(msg, hdr);
1269 genlmsg_cancel(msg, hdr);
1273 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1276 int start = cb->args[0];
1277 struct cfg80211_registered_device *dev;
1279 mutex_lock(&cfg80211_mutex);
1280 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1281 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1285 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1286 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1292 mutex_unlock(&cfg80211_mutex);
1299 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1301 struct sk_buff *msg;
1302 struct cfg80211_registered_device *dev = info->user_ptr[0];
1304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1308 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1313 return genlmsg_reply(msg, info);
1316 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1317 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1318 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1319 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1320 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1321 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1324 static int parse_txq_params(struct nlattr *tb[],
1325 struct ieee80211_txq_params *txq_params)
1327 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1328 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1329 !tb[NL80211_TXQ_ATTR_AIFS])
1332 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1333 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1334 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1335 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1336 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1338 if (txq_params->ac >= NL80211_NUM_ACS)
1344 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1347 * You can only set the channel explicitly for WDS interfaces,
1348 * all others have their channel managed via their respective
1349 * "establish a connection" command (connect, join, ...)
1351 * For AP/GO and mesh mode, the channel can be set with the
1352 * channel userspace API, but is only stored and passed to the
1353 * low-level driver when the AP starts or the mesh is joined.
1354 * This is for backward compatibility, userspace can also give
1355 * the channel in the start-ap or join-mesh commands instead.
1357 * Monitors are special as they are normally slaved to
1358 * whatever else is going on, so they have their own special
1359 * operation to set the monitor channel if possible.
1362 wdev->iftype == NL80211_IFTYPE_AP ||
1363 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1364 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1365 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1368 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1369 struct genl_info *info,
1370 struct cfg80211_chan_def *chandef)
1372 struct ieee80211_sta_ht_cap *ht_cap;
1373 struct ieee80211_sta_vht_cap *vht_cap;
1374 u32 control_freq, width;
1376 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1379 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1381 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1382 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1383 chandef->center_freq1 = control_freq;
1384 chandef->center_freq2 = 0;
1386 /* Primary channel not allowed */
1387 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1390 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1391 enum nl80211_channel_type chantype;
1393 chantype = nla_get_u32(
1394 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1397 case NL80211_CHAN_NO_HT:
1398 case NL80211_CHAN_HT20:
1399 case NL80211_CHAN_HT40PLUS:
1400 case NL80211_CHAN_HT40MINUS:
1401 cfg80211_chandef_create(chandef, chandef->chan,
1407 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1409 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1410 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1411 chandef->center_freq1 =
1413 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1414 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1415 chandef->center_freq2 =
1417 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1420 ht_cap = &rdev->wiphy.bands[chandef->chan->band]->ht_cap;
1421 vht_cap = &rdev->wiphy.bands[chandef->chan->band]->vht_cap;
1423 if (!cfg80211_chan_def_valid(chandef))
1426 switch (chandef->width) {
1427 case NL80211_CHAN_WIDTH_20:
1428 if (!ht_cap->ht_supported)
1430 case NL80211_CHAN_WIDTH_20_NOHT:
1433 case NL80211_CHAN_WIDTH_40:
1435 /* quick early regulatory check */
1436 if (chandef->center_freq1 < control_freq &&
1437 chandef->chan->flags & IEEE80211_CHAN_NO_HT40MINUS)
1439 if (chandef->center_freq1 > control_freq &&
1440 chandef->chan->flags & IEEE80211_CHAN_NO_HT40PLUS)
1442 if (!ht_cap->ht_supported)
1444 if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) ||
1445 ht_cap->cap & IEEE80211_HT_CAP_40MHZ_INTOLERANT)
1448 case NL80211_CHAN_WIDTH_80:
1450 if (!vht_cap->vht_supported)
1453 case NL80211_CHAN_WIDTH_80P80:
1455 if (!vht_cap->vht_supported)
1457 if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ))
1460 case NL80211_CHAN_WIDTH_160:
1462 if (!vht_cap->vht_supported)
1464 if (!(vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ))
1471 if (!cfg80211_secondary_chans_ok(&rdev->wiphy, chandef->center_freq1,
1472 width, IEEE80211_CHAN_DISABLED))
1474 if (chandef->center_freq2 &&
1475 !cfg80211_secondary_chans_ok(&rdev->wiphy, chandef->center_freq2,
1476 width, IEEE80211_CHAN_DISABLED))
1479 /* TODO: missing regulatory check on bandwidth */
1484 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1485 struct wireless_dev *wdev,
1486 struct genl_info *info)
1488 struct cfg80211_chan_def chandef;
1490 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1493 iftype = wdev->iftype;
1495 if (!nl80211_can_set_dev_channel(wdev))
1498 result = nl80211_parse_chandef(rdev, info, &chandef);
1502 mutex_lock(&rdev->devlist_mtx);
1504 case NL80211_IFTYPE_AP:
1505 case NL80211_IFTYPE_P2P_GO:
1506 if (wdev->beacon_interval) {
1510 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1514 wdev->preset_chandef = chandef;
1517 case NL80211_IFTYPE_MESH_POINT:
1518 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1520 case NL80211_IFTYPE_MONITOR:
1521 result = cfg80211_set_monitor_channel(rdev, &chandef);
1526 mutex_unlock(&rdev->devlist_mtx);
1531 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1534 struct net_device *netdev = info->user_ptr[1];
1536 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1539 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1542 struct net_device *dev = info->user_ptr[1];
1543 struct wireless_dev *wdev = dev->ieee80211_ptr;
1546 if (!info->attrs[NL80211_ATTR_MAC])
1549 if (netif_running(dev))
1552 if (!rdev->ops->set_wds_peer)
1555 if (wdev->iftype != NL80211_IFTYPE_WDS)
1558 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1559 return rdev_set_wds_peer(rdev, dev, bssid);
1563 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1565 struct cfg80211_registered_device *rdev;
1566 struct net_device *netdev = NULL;
1567 struct wireless_dev *wdev;
1568 int result = 0, rem_txq_params = 0;
1569 struct nlattr *nl_txq_params;
1571 u8 retry_short = 0, retry_long = 0;
1572 u32 frag_threshold = 0, rts_threshold = 0;
1573 u8 coverage_class = 0;
1576 * Try to find the wiphy and netdev. Normally this
1577 * function shouldn't need the netdev, but this is
1578 * done for backward compatibility -- previously
1579 * setting the channel was done per wiphy, but now
1580 * it is per netdev. Previous userland like hostapd
1581 * also passed a netdev to set_wiphy, so that it is
1582 * possible to let that go to the right netdev!
1584 mutex_lock(&cfg80211_mutex);
1586 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1587 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1589 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1590 if (netdev && netdev->ieee80211_ptr) {
1591 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1592 mutex_lock(&rdev->mtx);
1598 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1601 mutex_unlock(&cfg80211_mutex);
1602 return PTR_ERR(rdev);
1608 mutex_lock(&rdev->mtx);
1610 wdev = netdev->ieee80211_ptr;
1613 * end workaround code, by now the rdev is available
1614 * and locked, and wdev may or may not be NULL.
1617 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1618 result = cfg80211_dev_rename(
1619 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1621 mutex_unlock(&cfg80211_mutex);
1626 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1627 struct ieee80211_txq_params txq_params;
1628 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1630 if (!rdev->ops->set_txq_params) {
1631 result = -EOPNOTSUPP;
1640 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1641 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1646 if (!netif_running(netdev)) {
1651 nla_for_each_nested(nl_txq_params,
1652 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1654 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1655 nla_data(nl_txq_params),
1656 nla_len(nl_txq_params),
1658 result = parse_txq_params(tb, &txq_params);
1662 result = rdev_set_txq_params(rdev, netdev,
1669 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1670 result = __nl80211_set_channel(rdev,
1671 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1677 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1678 struct wireless_dev *txp_wdev = wdev;
1679 enum nl80211_tx_power_setting type;
1682 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1685 if (!rdev->ops->set_tx_power) {
1686 result = -EOPNOTSUPP;
1690 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1691 type = nla_get_u32(info->attrs[idx]);
1693 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1694 (type != NL80211_TX_POWER_AUTOMATIC)) {
1699 if (type != NL80211_TX_POWER_AUTOMATIC) {
1700 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1701 mbm = nla_get_u32(info->attrs[idx]);
1704 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1709 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1710 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1712 if ((!rdev->wiphy.available_antennas_tx &&
1713 !rdev->wiphy.available_antennas_rx) ||
1714 !rdev->ops->set_antenna) {
1715 result = -EOPNOTSUPP;
1719 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1720 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1722 /* reject antenna configurations which don't match the
1723 * available antenna masks, except for the "all" mask */
1724 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1725 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1730 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1731 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1733 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1740 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1741 retry_short = nla_get_u8(
1742 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1743 if (retry_short == 0) {
1747 changed |= WIPHY_PARAM_RETRY_SHORT;
1750 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1751 retry_long = nla_get_u8(
1752 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1753 if (retry_long == 0) {
1757 changed |= WIPHY_PARAM_RETRY_LONG;
1760 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1761 frag_threshold = nla_get_u32(
1762 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1763 if (frag_threshold < 256) {
1767 if (frag_threshold != (u32) -1) {
1769 * Fragments (apart from the last one) are required to
1770 * have even length. Make the fragmentation code
1771 * simpler by stripping LSB should someone try to use
1772 * odd threshold value.
1774 frag_threshold &= ~0x1;
1776 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1779 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1780 rts_threshold = nla_get_u32(
1781 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1782 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1785 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1786 coverage_class = nla_get_u8(
1787 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1788 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1792 u8 old_retry_short, old_retry_long;
1793 u32 old_frag_threshold, old_rts_threshold;
1794 u8 old_coverage_class;
1796 if (!rdev->ops->set_wiphy_params) {
1797 result = -EOPNOTSUPP;
1801 old_retry_short = rdev->wiphy.retry_short;
1802 old_retry_long = rdev->wiphy.retry_long;
1803 old_frag_threshold = rdev->wiphy.frag_threshold;
1804 old_rts_threshold = rdev->wiphy.rts_threshold;
1805 old_coverage_class = rdev->wiphy.coverage_class;
1807 if (changed & WIPHY_PARAM_RETRY_SHORT)
1808 rdev->wiphy.retry_short = retry_short;
1809 if (changed & WIPHY_PARAM_RETRY_LONG)
1810 rdev->wiphy.retry_long = retry_long;
1811 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1812 rdev->wiphy.frag_threshold = frag_threshold;
1813 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1814 rdev->wiphy.rts_threshold = rts_threshold;
1815 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1816 rdev->wiphy.coverage_class = coverage_class;
1818 result = rdev_set_wiphy_params(rdev, changed);
1820 rdev->wiphy.retry_short = old_retry_short;
1821 rdev->wiphy.retry_long = old_retry_long;
1822 rdev->wiphy.frag_threshold = old_frag_threshold;
1823 rdev->wiphy.rts_threshold = old_rts_threshold;
1824 rdev->wiphy.coverage_class = old_coverage_class;
1829 mutex_unlock(&rdev->mtx);
1835 static inline u64 wdev_id(struct wireless_dev *wdev)
1837 return (u64)wdev->identifier |
1838 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1841 static int nl80211_send_chandef(struct sk_buff *msg,
1842 struct cfg80211_chan_def *chandef)
1844 WARN_ON(!cfg80211_chan_def_valid(chandef));
1846 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1847 chandef->chan->center_freq))
1849 switch (chandef->width) {
1850 case NL80211_CHAN_WIDTH_20_NOHT:
1851 case NL80211_CHAN_WIDTH_20:
1852 case NL80211_CHAN_WIDTH_40:
1853 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1854 cfg80211_get_chandef_type(chandef)))
1860 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1862 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1864 if (chandef->center_freq2 &&
1865 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
1870 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1871 struct cfg80211_registered_device *rdev,
1872 struct wireless_dev *wdev)
1874 struct net_device *dev = wdev->netdev;
1877 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1882 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1883 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1884 goto nla_put_failure;
1886 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1887 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1888 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1889 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1890 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1891 rdev->devlist_generation ^
1892 (cfg80211_rdev_list_generation << 2)))
1893 goto nla_put_failure;
1895 if (rdev->ops->get_channel) {
1897 struct cfg80211_chan_def chandef;
1899 ret = rdev_get_channel(rdev, wdev, &chandef);
1901 if (nl80211_send_chandef(msg, &chandef))
1902 goto nla_put_failure;
1906 if (wdev->ssid_len) {
1907 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1908 goto nla_put_failure;
1911 return genlmsg_end(msg, hdr);
1914 genlmsg_cancel(msg, hdr);
1918 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1922 int wp_start = cb->args[0];
1923 int if_start = cb->args[1];
1924 struct cfg80211_registered_device *rdev;
1925 struct wireless_dev *wdev;
1927 mutex_lock(&cfg80211_mutex);
1928 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1929 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1931 if (wp_idx < wp_start) {
1937 mutex_lock(&rdev->devlist_mtx);
1938 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1939 if (if_idx < if_start) {
1943 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1944 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1946 mutex_unlock(&rdev->devlist_mtx);
1951 mutex_unlock(&rdev->devlist_mtx);
1956 mutex_unlock(&cfg80211_mutex);
1958 cb->args[0] = wp_idx;
1959 cb->args[1] = if_idx;
1964 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1966 struct sk_buff *msg;
1967 struct cfg80211_registered_device *dev = info->user_ptr[0];
1968 struct wireless_dev *wdev = info->user_ptr[1];
1970 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1974 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1980 return genlmsg_reply(msg, info);
1983 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1984 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1985 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1986 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1987 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1988 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1991 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1993 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2001 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2002 nla, mntr_flags_policy))
2005 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2007 *mntrflags |= (1<<flag);
2012 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2013 struct net_device *netdev, u8 use_4addr,
2014 enum nl80211_iftype iftype)
2017 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2023 case NL80211_IFTYPE_AP_VLAN:
2024 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2027 case NL80211_IFTYPE_STATION:
2028 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2038 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2041 struct vif_params params;
2043 enum nl80211_iftype otype, ntype;
2044 struct net_device *dev = info->user_ptr[1];
2045 u32 _flags, *flags = NULL;
2046 bool change = false;
2048 memset(¶ms, 0, sizeof(params));
2050 otype = ntype = dev->ieee80211_ptr->iftype;
2052 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2053 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2056 if (ntype > NL80211_IFTYPE_MAX)
2060 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2061 struct wireless_dev *wdev = dev->ieee80211_ptr;
2063 if (ntype != NL80211_IFTYPE_MESH_POINT)
2065 if (netif_running(dev))
2069 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2070 IEEE80211_MAX_MESH_ID_LEN);
2071 wdev->mesh_id_up_len =
2072 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2073 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2074 wdev->mesh_id_up_len);
2078 if (info->attrs[NL80211_ATTR_4ADDR]) {
2079 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2081 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2085 params.use_4addr = -1;
2088 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2089 if (ntype != NL80211_IFTYPE_MONITOR)
2091 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2101 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2105 if (!err && params.use_4addr != -1)
2106 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2111 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2113 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2114 struct vif_params params;
2115 struct wireless_dev *wdev;
2116 struct sk_buff *msg;
2118 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2121 memset(¶ms, 0, sizeof(params));
2123 if (!info->attrs[NL80211_ATTR_IFNAME])
2126 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2127 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2128 if (type > NL80211_IFTYPE_MAX)
2132 if (!rdev->ops->add_virtual_intf ||
2133 !(rdev->wiphy.interface_modes & (1 << type)))
2136 if (info->attrs[NL80211_ATTR_4ADDR]) {
2137 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2138 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2147 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2148 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2150 wdev = rdev_add_virtual_intf(rdev,
2151 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2152 type, err ? NULL : &flags, ¶ms);
2155 return PTR_ERR(wdev);
2159 case NL80211_IFTYPE_MESH_POINT:
2160 if (!info->attrs[NL80211_ATTR_MESH_ID])
2163 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2164 IEEE80211_MAX_MESH_ID_LEN);
2165 wdev->mesh_id_up_len =
2166 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2167 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2168 wdev->mesh_id_up_len);
2171 case NL80211_IFTYPE_P2P_DEVICE:
2173 * P2P Device doesn't have a netdev, so doesn't go
2174 * through the netdev notifier and must be added here
2176 mutex_init(&wdev->mtx);
2177 INIT_LIST_HEAD(&wdev->event_list);
2178 spin_lock_init(&wdev->event_lock);
2179 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2180 spin_lock_init(&wdev->mgmt_registrations_lock);
2182 mutex_lock(&rdev->devlist_mtx);
2183 wdev->identifier = ++rdev->wdev_id;
2184 list_add_rcu(&wdev->list, &rdev->wdev_list);
2185 rdev->devlist_generation++;
2186 mutex_unlock(&rdev->devlist_mtx);
2192 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2198 return genlmsg_reply(msg, info);
2201 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2204 struct wireless_dev *wdev = info->user_ptr[1];
2206 if (!rdev->ops->del_virtual_intf)
2210 * If we remove a wireless device without a netdev then clear
2211 * user_ptr[1] so that nl80211_post_doit won't dereference it
2212 * to check if it needs to do dev_put(). Otherwise it crashes
2213 * since the wdev has been freed, unlike with a netdev where
2214 * we need the dev_put() for the netdev to really be freed.
2217 info->user_ptr[1] = NULL;
2219 return rdev_del_virtual_intf(rdev, wdev);
2222 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2224 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2225 struct net_device *dev = info->user_ptr[1];
2228 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2231 if (!rdev->ops->set_noack_map)
2234 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2236 return rdev_set_noack_map(rdev, dev, noack_map);
2239 struct get_key_cookie {
2240 struct sk_buff *msg;
2245 static void get_key_callback(void *c, struct key_params *params)
2248 struct get_key_cookie *cookie = c;
2251 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2252 params->key_len, params->key)) ||
2254 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2255 params->seq_len, params->seq)) ||
2257 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2259 goto nla_put_failure;
2261 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2263 goto nla_put_failure;
2266 nla_put(cookie->msg, NL80211_KEY_DATA,
2267 params->key_len, params->key)) ||
2269 nla_put(cookie->msg, NL80211_KEY_SEQ,
2270 params->seq_len, params->seq)) ||
2272 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2274 goto nla_put_failure;
2276 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2277 goto nla_put_failure;
2279 nla_nest_end(cookie->msg, key);
2286 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2290 struct net_device *dev = info->user_ptr[1];
2292 const u8 *mac_addr = NULL;
2294 struct get_key_cookie cookie = {
2298 struct sk_buff *msg;
2300 if (info->attrs[NL80211_ATTR_KEY_IDX])
2301 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2306 if (info->attrs[NL80211_ATTR_MAC])
2307 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2309 pairwise = !!mac_addr;
2310 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2311 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2312 if (kt >= NUM_NL80211_KEYTYPES)
2314 if (kt != NL80211_KEYTYPE_GROUP &&
2315 kt != NL80211_KEYTYPE_PAIRWISE)
2317 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2320 if (!rdev->ops->get_key)
2323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2327 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2328 NL80211_CMD_NEW_KEY);
2330 return PTR_ERR(hdr);
2333 cookie.idx = key_idx;
2335 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2336 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2337 goto nla_put_failure;
2339 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2340 goto nla_put_failure;
2342 if (pairwise && mac_addr &&
2343 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2346 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2353 goto nla_put_failure;
2355 genlmsg_end(msg, hdr);
2356 return genlmsg_reply(msg, info);
2365 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2368 struct key_parse key;
2370 struct net_device *dev = info->user_ptr[1];
2372 err = nl80211_parse_key(info, &key);
2379 /* only support setting default key */
2380 if (!key.def && !key.defmgmt)
2383 wdev_lock(dev->ieee80211_ptr);
2386 if (!rdev->ops->set_default_key) {
2391 err = nl80211_key_allowed(dev->ieee80211_ptr);
2395 err = rdev_set_default_key(rdev, dev, key.idx,
2396 key.def_uni, key.def_multi);
2401 #ifdef CONFIG_CFG80211_WEXT
2402 dev->ieee80211_ptr->wext.default_key = key.idx;
2405 if (key.def_uni || !key.def_multi) {
2410 if (!rdev->ops->set_default_mgmt_key) {
2415 err = nl80211_key_allowed(dev->ieee80211_ptr);
2419 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2423 #ifdef CONFIG_CFG80211_WEXT
2424 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2429 wdev_unlock(dev->ieee80211_ptr);
2434 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2438 struct net_device *dev = info->user_ptr[1];
2439 struct key_parse key;
2440 const u8 *mac_addr = NULL;
2442 err = nl80211_parse_key(info, &key);
2449 if (info->attrs[NL80211_ATTR_MAC])
2450 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2452 if (key.type == -1) {
2454 key.type = NL80211_KEYTYPE_PAIRWISE;
2456 key.type = NL80211_KEYTYPE_GROUP;
2460 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2461 key.type != NL80211_KEYTYPE_GROUP)
2464 if (!rdev->ops->add_key)
2467 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2468 key.type == NL80211_KEYTYPE_PAIRWISE,
2472 wdev_lock(dev->ieee80211_ptr);
2473 err = nl80211_key_allowed(dev->ieee80211_ptr);
2475 err = rdev_add_key(rdev, dev, key.idx,
2476 key.type == NL80211_KEYTYPE_PAIRWISE,
2478 wdev_unlock(dev->ieee80211_ptr);
2483 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2487 struct net_device *dev = info->user_ptr[1];
2488 u8 *mac_addr = NULL;
2489 struct key_parse key;
2491 err = nl80211_parse_key(info, &key);
2495 if (info->attrs[NL80211_ATTR_MAC])
2496 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2498 if (key.type == -1) {
2500 key.type = NL80211_KEYTYPE_PAIRWISE;
2502 key.type = NL80211_KEYTYPE_GROUP;
2506 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2507 key.type != NL80211_KEYTYPE_GROUP)
2510 if (!rdev->ops->del_key)
2513 wdev_lock(dev->ieee80211_ptr);
2514 err = nl80211_key_allowed(dev->ieee80211_ptr);
2516 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2517 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2521 err = rdev_del_key(rdev, dev, key.idx,
2522 key.type == NL80211_KEYTYPE_PAIRWISE,
2525 #ifdef CONFIG_CFG80211_WEXT
2527 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2528 dev->ieee80211_ptr->wext.default_key = -1;
2529 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2530 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2533 wdev_unlock(dev->ieee80211_ptr);
2538 static int nl80211_parse_beacon(struct genl_info *info,
2539 struct cfg80211_beacon_data *bcn)
2541 bool haveinfo = false;
2543 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2544 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2545 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2546 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2549 memset(bcn, 0, sizeof(*bcn));
2551 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2552 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2553 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2559 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2560 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2562 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2569 if (info->attrs[NL80211_ATTR_IE]) {
2570 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2571 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2574 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2575 bcn->proberesp_ies =
2576 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2577 bcn->proberesp_ies_len =
2578 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2581 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2582 bcn->assocresp_ies =
2583 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2584 bcn->assocresp_ies_len =
2585 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2588 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2590 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2591 bcn->probe_resp_len =
2592 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2598 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2599 struct cfg80211_ap_settings *params)
2601 struct wireless_dev *wdev;
2604 mutex_lock(&rdev->devlist_mtx);
2606 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2607 if (wdev->iftype != NL80211_IFTYPE_AP &&
2608 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2611 if (!wdev->preset_chandef.chan)
2614 params->chandef = wdev->preset_chandef;
2619 mutex_unlock(&rdev->devlist_mtx);
2624 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2625 enum nl80211_auth_type auth_type,
2626 enum nl80211_commands cmd)
2628 if (auth_type > NL80211_AUTHTYPE_MAX)
2632 case NL80211_CMD_AUTHENTICATE:
2633 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2634 auth_type == NL80211_AUTHTYPE_SAE)
2637 case NL80211_CMD_CONNECT:
2638 case NL80211_CMD_START_AP:
2639 /* SAE not supported yet */
2640 if (auth_type == NL80211_AUTHTYPE_SAE)
2648 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2651 struct net_device *dev = info->user_ptr[1];
2652 struct wireless_dev *wdev = dev->ieee80211_ptr;
2653 struct cfg80211_ap_settings params;
2656 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2657 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2660 if (!rdev->ops->start_ap)
2663 if (wdev->beacon_interval)
2666 memset(¶ms, 0, sizeof(params));
2668 /* these are required for START_AP */
2669 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2670 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2671 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2674 err = nl80211_parse_beacon(info, ¶ms.beacon);
2678 params.beacon_interval =
2679 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2680 params.dtim_period =
2681 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2683 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2688 * In theory, some of these attributes should be required here
2689 * but since they were not used when the command was originally
2690 * added, keep them optional for old user space programs to let
2691 * them continue to work with drivers that do not need the
2692 * additional information -- drivers must check!
2694 if (info->attrs[NL80211_ATTR_SSID]) {
2695 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2697 nla_len(info->attrs[NL80211_ATTR_SSID]);
2698 if (params.ssid_len == 0 ||
2699 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2703 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2704 params.hidden_ssid = nla_get_u32(
2705 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2706 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2707 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2708 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2712 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2714 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2715 params.auth_type = nla_get_u32(
2716 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2717 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2718 NL80211_CMD_START_AP))
2721 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2723 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2724 NL80211_MAX_NR_CIPHER_SUITES);
2728 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2729 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2731 params.inactivity_timeout = nla_get_u16(
2732 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2735 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2736 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
2739 } else if (wdev->preset_chandef.chan) {
2740 params.chandef = wdev->preset_chandef;
2741 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2744 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
2747 mutex_lock(&rdev->devlist_mtx);
2748 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
2750 mutex_unlock(&rdev->devlist_mtx);
2755 err = rdev_start_ap(rdev, dev, ¶ms);
2757 wdev->preset_chandef = params.chandef;
2758 wdev->beacon_interval = params.beacon_interval;
2759 wdev->channel = params.chandef.chan;
2760 wdev->ssid_len = params.ssid_len;
2761 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2766 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2769 struct net_device *dev = info->user_ptr[1];
2770 struct wireless_dev *wdev = dev->ieee80211_ptr;
2771 struct cfg80211_beacon_data params;
2774 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2775 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2778 if (!rdev->ops->change_beacon)
2781 if (!wdev->beacon_interval)
2784 err = nl80211_parse_beacon(info, ¶ms);
2788 return rdev_change_beacon(rdev, dev, ¶ms);
2791 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2794 struct net_device *dev = info->user_ptr[1];
2796 return cfg80211_stop_ap(rdev, dev);
2799 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2800 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2801 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2802 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2803 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2804 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2805 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2808 static int parse_station_flags(struct genl_info *info,
2809 enum nl80211_iftype iftype,
2810 struct station_parameters *params)
2812 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2817 * Try parsing the new attribute first so userspace
2818 * can specify both for older kernels.
2820 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2822 struct nl80211_sta_flag_update *sta_flags;
2824 sta_flags = nla_data(nla);
2825 params->sta_flags_mask = sta_flags->mask;
2826 params->sta_flags_set = sta_flags->set;
2827 if ((params->sta_flags_mask |
2828 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2833 /* if present, parse the old attribute */
2835 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2839 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2840 nla, sta_flags_policy))
2844 * Only allow certain flags for interface types so that
2845 * other attributes are silently ignored. Remember that
2846 * this is backward compatibility code with old userspace
2847 * and shouldn't be hit in other cases anyway.
2850 case NL80211_IFTYPE_AP:
2851 case NL80211_IFTYPE_AP_VLAN:
2852 case NL80211_IFTYPE_P2P_GO:
2853 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2854 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2855 BIT(NL80211_STA_FLAG_WME) |
2856 BIT(NL80211_STA_FLAG_MFP);
2858 case NL80211_IFTYPE_P2P_CLIENT:
2859 case NL80211_IFTYPE_STATION:
2860 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2861 BIT(NL80211_STA_FLAG_TDLS_PEER);
2863 case NL80211_IFTYPE_MESH_POINT:
2864 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2865 BIT(NL80211_STA_FLAG_MFP) |
2866 BIT(NL80211_STA_FLAG_AUTHORIZED);
2871 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2873 params->sta_flags_set |= (1<<flag);
2875 /* no longer support new API additions in old API */
2876 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2884 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2887 struct nlattr *rate;
2891 rate = nla_nest_start(msg, attr);
2895 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2896 bitrate = cfg80211_calculate_bitrate(info);
2897 /* report 16-bit bitrate only if we can */
2898 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2900 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2902 if (bitrate_compat > 0 &&
2903 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2906 if (info->flags & RATE_INFO_FLAGS_MCS) {
2907 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
2909 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2910 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2912 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2913 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2915 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
2916 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
2918 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
2920 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
2921 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
2923 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
2924 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
2926 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
2927 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
2929 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
2930 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
2932 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
2933 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
2937 nla_nest_end(msg, rate);
2941 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
2943 struct cfg80211_registered_device *rdev,
2944 struct net_device *dev,
2945 const u8 *mac_addr, struct station_info *sinfo)
2948 struct nlattr *sinfoattr, *bss_param;
2950 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2954 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2955 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2956 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2957 goto nla_put_failure;
2959 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2961 goto nla_put_failure;
2962 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2963 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2964 sinfo->connected_time))
2965 goto nla_put_failure;
2966 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2967 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2968 sinfo->inactive_time))
2969 goto nla_put_failure;
2970 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2971 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2973 goto nla_put_failure;
2974 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2975 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2977 goto nla_put_failure;
2978 if ((sinfo->filled & STATION_INFO_LLID) &&
2979 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2980 goto nla_put_failure;
2981 if ((sinfo->filled & STATION_INFO_PLID) &&
2982 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2983 goto nla_put_failure;
2984 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2985 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2986 sinfo->plink_state))
2987 goto nla_put_failure;
2988 switch (rdev->wiphy.signal_type) {
2989 case CFG80211_SIGNAL_TYPE_MBM:
2990 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2991 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2993 goto nla_put_failure;
2994 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2995 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2997 goto nla_put_failure;
3002 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3003 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3004 NL80211_STA_INFO_TX_BITRATE))
3005 goto nla_put_failure;
3007 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3008 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3009 NL80211_STA_INFO_RX_BITRATE))
3010 goto nla_put_failure;
3012 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3013 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3015 goto nla_put_failure;
3016 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3017 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3019 goto nla_put_failure;
3020 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3021 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3023 goto nla_put_failure;
3024 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3025 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3027 goto nla_put_failure;
3028 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3029 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3030 sinfo->beacon_loss_count))
3031 goto nla_put_failure;
3032 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3033 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3035 goto nla_put_failure;
3037 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3038 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3039 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3040 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3041 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3042 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3043 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3044 sinfo->bss_param.dtim_period) ||
3045 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3046 sinfo->bss_param.beacon_interval))
3047 goto nla_put_failure;
3049 nla_nest_end(msg, bss_param);
3051 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3052 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3053 sizeof(struct nl80211_sta_flag_update),
3055 goto nla_put_failure;
3056 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3057 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3059 goto nla_put_failure;
3060 nla_nest_end(msg, sinfoattr);
3062 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3063 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3064 sinfo->assoc_req_ies))
3065 goto nla_put_failure;
3067 return genlmsg_end(msg, hdr);
3070 genlmsg_cancel(msg, hdr);
3074 static int nl80211_dump_station(struct sk_buff *skb,
3075 struct netlink_callback *cb)
3077 struct station_info sinfo;
3078 struct cfg80211_registered_device *dev;
3079 struct net_device *netdev;
3080 u8 mac_addr[ETH_ALEN];
3081 int sta_idx = cb->args[1];
3084 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3088 if (!dev->ops->dump_station) {
3094 memset(&sinfo, 0, sizeof(sinfo));
3095 err = rdev_dump_station(dev, netdev, sta_idx,
3102 if (nl80211_send_station(skb,
3103 NETLINK_CB(cb->skb).portid,
3104 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3105 dev, netdev, mac_addr,
3114 cb->args[1] = sta_idx;
3117 nl80211_finish_netdev_dump(dev);
3122 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3125 struct net_device *dev = info->user_ptr[1];
3126 struct station_info sinfo;
3127 struct sk_buff *msg;
3128 u8 *mac_addr = NULL;
3131 memset(&sinfo, 0, sizeof(sinfo));
3133 if (!info->attrs[NL80211_ATTR_MAC])
3136 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3138 if (!rdev->ops->get_station)
3141 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3145 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3149 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3150 rdev, dev, mac_addr, &sinfo) < 0) {
3155 return genlmsg_reply(msg, info);
3159 * Get vlan interface making sure it is running and on the right wiphy.
3161 static struct net_device *get_vlan(struct genl_info *info,
3162 struct cfg80211_registered_device *rdev)
3164 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3165 struct net_device *v;
3171 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3173 return ERR_PTR(-ENODEV);
3175 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3180 if (!netif_running(v)) {
3188 return ERR_PTR(ret);
3191 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3195 struct net_device *dev = info->user_ptr[1];
3196 struct station_parameters params;
3197 u8 *mac_addr = NULL;
3199 memset(¶ms, 0, sizeof(params));
3201 params.listen_interval = -1;
3202 params.plink_state = -1;
3204 if (info->attrs[NL80211_ATTR_STA_AID])
3207 if (!info->attrs[NL80211_ATTR_MAC])
3210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3212 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3213 params.supported_rates =
3214 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3215 params.supported_rates_len =
3216 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3219 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3220 params.listen_interval =
3221 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3223 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3225 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3227 if (!rdev->ops->change_station)
3230 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3233 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3234 params.plink_action =
3235 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3237 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3238 params.plink_state =
3239 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3241 switch (dev->ieee80211_ptr->iftype) {
3242 case NL80211_IFTYPE_AP:
3243 case NL80211_IFTYPE_AP_VLAN:
3244 case NL80211_IFTYPE_P2P_GO:
3245 /* disallow mesh-specific things */
3246 if (params.plink_action)
3249 /* TDLS can't be set, ... */
3250 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3253 * ... but don't bother the driver with it. This works around
3254 * a hostapd/wpa_supplicant issue -- it always includes the
3255 * TLDS_PEER flag in the mask even for AP mode.
3257 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3259 /* accept only the listed bits */
3260 if (params.sta_flags_mask &
3261 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3262 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3263 BIT(NL80211_STA_FLAG_WME) |
3264 BIT(NL80211_STA_FLAG_MFP)))
3267 /* must be last in here for error handling */
3268 params.vlan = get_vlan(info, rdev);
3269 if (IS_ERR(params.vlan))
3270 return PTR_ERR(params.vlan);
3272 case NL80211_IFTYPE_P2P_CLIENT:
3273 case NL80211_IFTYPE_STATION:
3275 * Don't allow userspace to change the TDLS_PEER flag,
3276 * but silently ignore attempts to change it since we
3277 * don't have state here to verify that it doesn't try
3278 * to change the flag.
3280 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3282 case NL80211_IFTYPE_ADHOC:
3283 /* disallow things sta doesn't support */
3284 if (params.plink_action)
3288 if (params.listen_interval >= 0)
3290 /* reject any changes other than AUTHORIZED */
3291 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3294 case NL80211_IFTYPE_MESH_POINT:
3295 /* disallow things mesh doesn't support */
3300 if (params.listen_interval >= 0)
3303 * No special handling for TDLS here -- the userspace
3304 * mesh code doesn't have this bug.
3306 if (params.sta_flags_mask &
3307 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3308 BIT(NL80211_STA_FLAG_MFP) |
3309 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3316 /* be aware of params.vlan when changing code here */
3318 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3321 dev_put(params.vlan);
3326 static struct nla_policy
3327 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3328 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3329 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3332 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3336 struct net_device *dev = info->user_ptr[1];
3337 struct station_parameters params;
3338 u8 *mac_addr = NULL;
3340 memset(¶ms, 0, sizeof(params));
3342 if (!info->attrs[NL80211_ATTR_MAC])
3345 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3348 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3351 if (!info->attrs[NL80211_ATTR_STA_AID])
3354 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3355 params.supported_rates =
3356 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3357 params.supported_rates_len =
3358 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3359 params.listen_interval =
3360 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3362 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3363 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3366 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3368 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3370 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3372 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3374 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3375 params.plink_action =
3376 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3378 if (!rdev->ops->add_station)
3381 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3384 switch (dev->ieee80211_ptr->iftype) {
3385 case NL80211_IFTYPE_AP:
3386 case NL80211_IFTYPE_AP_VLAN:
3387 case NL80211_IFTYPE_P2P_GO:
3388 /* parse WME attributes if sta is WME capable */
3389 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3390 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3391 info->attrs[NL80211_ATTR_STA_WME]) {
3392 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3395 nla = info->attrs[NL80211_ATTR_STA_WME];
3396 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3397 nl80211_sta_wme_policy);
3401 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3402 params.uapsd_queues =
3403 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3404 if (params.uapsd_queues &
3405 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3408 if (tb[NL80211_STA_WME_MAX_SP])
3410 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3413 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3416 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3418 /* TDLS peers cannot be added */
3419 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3421 /* but don't bother the driver with it */
3422 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3424 /* must be last in here for error handling */
3425 params.vlan = get_vlan(info, rdev);
3426 if (IS_ERR(params.vlan))
3427 return PTR_ERR(params.vlan);
3429 case NL80211_IFTYPE_MESH_POINT:
3430 /* TDLS peers cannot be added */
3431 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3434 case NL80211_IFTYPE_STATION:
3435 /* Only TDLS peers can be added */
3436 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3438 /* Can only add if TDLS ... */
3439 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3441 /* ... with external setup is supported */
3442 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3449 /* be aware of params.vlan when changing code here */
3451 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3454 dev_put(params.vlan);
3458 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3461 struct net_device *dev = info->user_ptr[1];
3462 u8 *mac_addr = NULL;
3464 if (info->attrs[NL80211_ATTR_MAC])
3465 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3467 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3468 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3469 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3470 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3473 if (!rdev->ops->del_station)
3476 return rdev_del_station(rdev, dev, mac_addr);
3479 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3480 int flags, struct net_device *dev,
3481 u8 *dst, u8 *next_hop,
3482 struct mpath_info *pinfo)
3485 struct nlattr *pinfoattr;
3487 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3491 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3492 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3493 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3494 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3495 goto nla_put_failure;
3497 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3499 goto nla_put_failure;
3500 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3501 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3503 goto nla_put_failure;
3504 if (((pinfo->filled & MPATH_INFO_SN) &&
3505 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3506 ((pinfo->filled & MPATH_INFO_METRIC) &&
3507 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3509 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3510 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3512 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3513 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3515 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3516 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3517 pinfo->discovery_timeout)) ||
3518 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3519 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3520 pinfo->discovery_retries)))
3521 goto nla_put_failure;
3523 nla_nest_end(msg, pinfoattr);
3525 return genlmsg_end(msg, hdr);
3528 genlmsg_cancel(msg, hdr);
3532 static int nl80211_dump_mpath(struct sk_buff *skb,
3533 struct netlink_callback *cb)
3535 struct mpath_info pinfo;
3536 struct cfg80211_registered_device *dev;
3537 struct net_device *netdev;
3539 u8 next_hop[ETH_ALEN];
3540 int path_idx = cb->args[1];
3543 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3547 if (!dev->ops->dump_mpath) {
3552 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3558 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3565 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3566 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3567 netdev, dst, next_hop,
3576 cb->args[1] = path_idx;
3579 nl80211_finish_netdev_dump(dev);
3583 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3587 struct net_device *dev = info->user_ptr[1];
3588 struct mpath_info pinfo;
3589 struct sk_buff *msg;
3591 u8 next_hop[ETH_ALEN];
3593 memset(&pinfo, 0, sizeof(pinfo));
3595 if (!info->attrs[NL80211_ATTR_MAC])
3598 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3600 if (!rdev->ops->get_mpath)
3603 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3606 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3614 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3615 dev, dst, next_hop, &pinfo) < 0) {
3620 return genlmsg_reply(msg, info);
3623 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3626 struct net_device *dev = info->user_ptr[1];
3628 u8 *next_hop = NULL;
3630 if (!info->attrs[NL80211_ATTR_MAC])
3633 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3636 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3637 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3639 if (!rdev->ops->change_mpath)
3642 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3645 return rdev_change_mpath(rdev, dev, dst, next_hop);
3648 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3651 struct net_device *dev = info->user_ptr[1];
3653 u8 *next_hop = NULL;
3655 if (!info->attrs[NL80211_ATTR_MAC])
3658 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3661 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3662 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3664 if (!rdev->ops->add_mpath)
3667 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3670 return rdev_add_mpath(rdev, dev, dst, next_hop);
3673 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3676 struct net_device *dev = info->user_ptr[1];
3679 if (info->attrs[NL80211_ATTR_MAC])
3680 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3682 if (!rdev->ops->del_mpath)
3685 return rdev_del_mpath(rdev, dev, dst);
3688 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3691 struct net_device *dev = info->user_ptr[1];
3692 struct bss_parameters params;
3694 memset(¶ms, 0, sizeof(params));
3695 /* default to not changing parameters */
3696 params.use_cts_prot = -1;
3697 params.use_short_preamble = -1;
3698 params.use_short_slot_time = -1;
3699 params.ap_isolate = -1;
3700 params.ht_opmode = -1;
3702 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3703 params.use_cts_prot =
3704 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3705 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3706 params.use_short_preamble =
3707 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3708 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3709 params.use_short_slot_time =
3710 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3711 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3712 params.basic_rates =
3713 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3714 params.basic_rates_len =
3715 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3717 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3718 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3719 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3721 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3723 if (!rdev->ops->change_bss)
3726 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3727 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3730 return rdev_change_bss(rdev, dev, ¶ms);
3733 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3734 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3735 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3736 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3737 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3738 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3739 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3742 static int parse_reg_rule(struct nlattr *tb[],
3743 struct ieee80211_reg_rule *reg_rule)
3745 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3746 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3748 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3750 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3752 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3754 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3756 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3759 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3761 freq_range->start_freq_khz =
3762 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3763 freq_range->end_freq_khz =
3764 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3765 freq_range->max_bandwidth_khz =
3766 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3768 power_rule->max_eirp =
3769 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3771 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3772 power_rule->max_antenna_gain =
3773 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3778 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3782 enum nl80211_user_reg_hint_type user_reg_hint_type;
3785 * You should only get this when cfg80211 hasn't yet initialized
3786 * completely when built-in to the kernel right between the time
3787 * window between nl80211_init() and regulatory_init(), if that is
3790 mutex_lock(&cfg80211_mutex);
3791 if (unlikely(!cfg80211_regdomain)) {
3792 mutex_unlock(&cfg80211_mutex);
3793 return -EINPROGRESS;
3795 mutex_unlock(&cfg80211_mutex);
3797 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3800 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3802 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3803 user_reg_hint_type =
3804 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3806 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3808 switch (user_reg_hint_type) {
3809 case NL80211_USER_REG_HINT_USER:
3810 case NL80211_USER_REG_HINT_CELL_BASE:
3816 r = regulatory_hint_user(data, user_reg_hint_type);
3821 static int nl80211_get_mesh_config(struct sk_buff *skb,
3822 struct genl_info *info)
3824 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3825 struct net_device *dev = info->user_ptr[1];
3826 struct wireless_dev *wdev = dev->ieee80211_ptr;
3827 struct mesh_config cur_params;
3830 struct nlattr *pinfoattr;
3831 struct sk_buff *msg;
3833 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3836 if (!rdev->ops->get_mesh_config)
3840 /* If not connected, get default parameters */
3841 if (!wdev->mesh_id_len)
3842 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3844 err = rdev_get_mesh_config(rdev, dev, &cur_params);
3850 /* Draw up a netlink message to send back */
3851 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3854 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3855 NL80211_CMD_GET_MESH_CONFIG);
3858 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3860 goto nla_put_failure;
3861 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3862 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3863 cur_params.dot11MeshRetryTimeout) ||
3864 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3865 cur_params.dot11MeshConfirmTimeout) ||
3866 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3867 cur_params.dot11MeshHoldingTimeout) ||
3868 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3869 cur_params.dot11MeshMaxPeerLinks) ||
3870 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3871 cur_params.dot11MeshMaxRetries) ||
3872 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3873 cur_params.dot11MeshTTL) ||
3874 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3875 cur_params.element_ttl) ||
3876 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3877 cur_params.auto_open_plinks) ||
3878 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3879 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3880 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3881 cur_params.dot11MeshHWMPmaxPREQretries) ||
3882 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3883 cur_params.path_refresh_time) ||
3884 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3885 cur_params.min_discovery_timeout) ||
3886 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3887 cur_params.dot11MeshHWMPactivePathTimeout) ||
3888 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3889 cur_params.dot11MeshHWMPpreqMinInterval) ||
3890 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3891 cur_params.dot11MeshHWMPperrMinInterval) ||
3892 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3893 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3894 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3895 cur_params.dot11MeshHWMPRootMode) ||
3896 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3897 cur_params.dot11MeshHWMPRannInterval) ||
3898 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3899 cur_params.dot11MeshGateAnnouncementProtocol) ||
3900 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3901 cur_params.dot11MeshForwarding) ||
3902 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3903 cur_params.rssi_threshold) ||
3904 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3905 cur_params.ht_opmode) ||
3906 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3907 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3908 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3909 cur_params.dot11MeshHWMProotInterval) ||
3910 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3911 cur_params.dot11MeshHWMPconfirmationInterval))
3912 goto nla_put_failure;
3913 nla_nest_end(msg, pinfoattr);
3914 genlmsg_end(msg, hdr);
3915 return genlmsg_reply(msg, info);
3918 genlmsg_cancel(msg, hdr);
3924 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3925 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3926 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3927 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3928 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3929 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3930 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3931 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3932 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3933 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3934 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3935 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3936 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3937 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3938 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3939 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3940 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3941 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3942 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3943 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3944 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3945 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3946 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3947 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3948 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3949 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3952 static const struct nla_policy
3953 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3954 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3955 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3956 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3957 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3958 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3959 .len = IEEE80211_MAX_DATA_LEN },
3960 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3963 static int nl80211_parse_mesh_config(struct genl_info *info,
3964 struct mesh_config *cfg,
3967 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3970 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3972 if (table[attr_num]) {\
3973 cfg->param = nla_fn(table[attr_num]); \
3974 mask |= (1 << (attr_num - 1)); \
3979 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3981 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3982 info->attrs[NL80211_ATTR_MESH_CONFIG],
3983 nl80211_meshconf_params_policy))
3986 /* This makes sure that there aren't more than 32 mesh config
3987 * parameters (otherwise our bitfield scheme would not work.) */
3988 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3990 /* Fill in the params struct */
3991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3992 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3994 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3995 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3998 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
4001 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
4004 mask, NL80211_MESHCONF_MAX_RETRIES,
4006 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
4007 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
4009 mask, NL80211_MESHCONF_ELEMENT_TTL,
4011 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
4012 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
4015 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4017 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
4018 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
4021 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
4024 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4026 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
4027 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4029 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4030 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4032 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4033 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4035 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4036 dot11MeshHWMPnetDiameterTraversalTime, mask,
4037 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4039 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
4040 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
4041 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
4042 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4044 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4045 dot11MeshGateAnnouncementProtocol, mask,
4046 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4048 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
4049 mask, NL80211_MESHCONF_FORWARDING,
4051 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
4052 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4054 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
4055 mask, NL80211_MESHCONF_HT_OPMODE,
4057 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4059 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4061 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
4062 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4064 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4065 dot11MeshHWMPconfirmationInterval, mask,
4066 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4073 #undef FILL_IN_MESH_PARAM_IF_SET
4076 static int nl80211_parse_mesh_setup(struct genl_info *info,
4077 struct mesh_setup *setup)
4079 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4081 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4083 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4084 info->attrs[NL80211_ATTR_MESH_SETUP],
4085 nl80211_mesh_setup_params_policy))
4088 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4089 setup->sync_method =
4090 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4091 IEEE80211_SYNC_METHOD_VENDOR :
4092 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4094 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4095 setup->path_sel_proto =
4096 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4097 IEEE80211_PATH_PROTOCOL_VENDOR :
4098 IEEE80211_PATH_PROTOCOL_HWMP;
4100 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4101 setup->path_metric =
4102 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4103 IEEE80211_PATH_METRIC_VENDOR :
4104 IEEE80211_PATH_METRIC_AIRTIME;
4107 if (tb[NL80211_MESH_SETUP_IE]) {
4108 struct nlattr *ieattr =
4109 tb[NL80211_MESH_SETUP_IE];
4110 if (!is_valid_ie_attr(ieattr))
4112 setup->ie = nla_data(ieattr);
4113 setup->ie_len = nla_len(ieattr);
4115 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4116 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4121 static int nl80211_update_mesh_config(struct sk_buff *skb,
4122 struct genl_info *info)
4124 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4125 struct net_device *dev = info->user_ptr[1];
4126 struct wireless_dev *wdev = dev->ieee80211_ptr;
4127 struct mesh_config cfg;
4131 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4134 if (!rdev->ops->update_mesh_config)
4137 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4142 if (!wdev->mesh_id_len)
4146 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4153 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4155 struct sk_buff *msg;
4157 struct nlattr *nl_reg_rules;
4161 mutex_lock(&cfg80211_mutex);
4163 if (!cfg80211_regdomain)
4166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4172 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4173 NL80211_CMD_GET_REG);
4177 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4178 cfg80211_regdomain->alpha2) ||
4179 (cfg80211_regdomain->dfs_region &&
4180 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4181 cfg80211_regdomain->dfs_region)))
4182 goto nla_put_failure;
4184 if (reg_last_request_cell_base() &&
4185 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4186 NL80211_USER_REG_HINT_CELL_BASE))
4187 goto nla_put_failure;
4189 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4191 goto nla_put_failure;
4193 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4194 struct nlattr *nl_reg_rule;
4195 const struct ieee80211_reg_rule *reg_rule;
4196 const struct ieee80211_freq_range *freq_range;
4197 const struct ieee80211_power_rule *power_rule;
4199 reg_rule = &cfg80211_regdomain->reg_rules[i];
4200 freq_range = ®_rule->freq_range;
4201 power_rule = ®_rule->power_rule;
4203 nl_reg_rule = nla_nest_start(msg, i);
4205 goto nla_put_failure;
4207 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4209 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4210 freq_range->start_freq_khz) ||
4211 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4212 freq_range->end_freq_khz) ||
4213 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4214 freq_range->max_bandwidth_khz) ||
4215 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4216 power_rule->max_antenna_gain) ||
4217 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4218 power_rule->max_eirp))
4219 goto nla_put_failure;
4221 nla_nest_end(msg, nl_reg_rule);
4224 nla_nest_end(msg, nl_reg_rules);
4226 genlmsg_end(msg, hdr);
4227 err = genlmsg_reply(msg, info);
4231 genlmsg_cancel(msg, hdr);
4236 mutex_unlock(&cfg80211_mutex);
4240 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4242 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4243 struct nlattr *nl_reg_rule;
4244 char *alpha2 = NULL;
4245 int rem_reg_rules = 0, r = 0;
4246 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4248 struct ieee80211_regdomain *rd = NULL;
4250 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4253 if (!info->attrs[NL80211_ATTR_REG_RULES])
4256 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4258 if (info->attrs[NL80211_ATTR_DFS_REGION])
4259 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4261 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4264 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4268 mutex_lock(&cfg80211_mutex);
4270 if (!reg_is_valid_request(alpha2)) {
4275 size_of_regd = sizeof(struct ieee80211_regdomain) +
4276 (num_rules * sizeof(struct ieee80211_reg_rule));
4278 rd = kzalloc(size_of_regd, GFP_KERNEL);
4284 rd->n_reg_rules = num_rules;
4285 rd->alpha2[0] = alpha2[0];
4286 rd->alpha2[1] = alpha2[1];
4289 * Disable DFS master mode if the DFS region was
4290 * not supported or known on this kernel.
4292 if (reg_supported_dfs_region(dfs_region))
4293 rd->dfs_region = dfs_region;
4295 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4297 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4298 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4300 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4306 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4312 BUG_ON(rule_idx != num_rules);
4316 mutex_unlock(&cfg80211_mutex);
4321 mutex_unlock(&cfg80211_mutex);
4326 static int validate_scan_freqs(struct nlattr *freqs)
4328 struct nlattr *attr1, *attr2;
4329 int n_channels = 0, tmp1, tmp2;
4331 nla_for_each_nested(attr1, freqs, tmp1) {
4334 * Some hardware has a limited channel list for
4335 * scanning, and it is pretty much nonsensical
4336 * to scan for a channel twice, so disallow that
4337 * and don't require drivers to check that the
4338 * channel list they get isn't longer than what
4339 * they can scan, as long as they can scan all
4340 * the channels they registered at once.
4342 nla_for_each_nested(attr2, freqs, tmp2)
4343 if (attr1 != attr2 &&
4344 nla_get_u32(attr1) == nla_get_u32(attr2))
4351 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4354 struct wireless_dev *wdev = info->user_ptr[1];
4355 struct cfg80211_scan_request *request;
4356 struct nlattr *attr;
4357 struct wiphy *wiphy;
4358 int err, tmp, n_ssids = 0, n_channels, i;
4361 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4364 wiphy = &rdev->wiphy;
4366 if (!rdev->ops->scan)
4372 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4373 n_channels = validate_scan_freqs(
4374 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4378 enum ieee80211_band band;
4381 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4382 if (wiphy->bands[band])
4383 n_channels += wiphy->bands[band]->n_channels;
4386 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4387 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4390 if (n_ssids > wiphy->max_scan_ssids)
4393 if (info->attrs[NL80211_ATTR_IE])
4394 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4398 if (ie_len > wiphy->max_scan_ie_len)
4401 request = kzalloc(sizeof(*request)
4402 + sizeof(*request->ssids) * n_ssids
4403 + sizeof(*request->channels) * n_channels
4404 + ie_len, GFP_KERNEL);
4409 request->ssids = (void *)&request->channels[n_channels];
4410 request->n_ssids = n_ssids;
4413 request->ie = (void *)(request->ssids + n_ssids);
4415 request->ie = (void *)(request->channels + n_channels);
4419 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4420 /* user specified, bail out if channel not found */
4421 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4422 struct ieee80211_channel *chan;
4424 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4431 /* ignore disabled channels */
4432 if (chan->flags & IEEE80211_CHAN_DISABLED)
4435 request->channels[i] = chan;
4439 enum ieee80211_band band;
4442 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4444 if (!wiphy->bands[band])
4446 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4447 struct ieee80211_channel *chan;
4449 chan = &wiphy->bands[band]->channels[j];
4451 if (chan->flags & IEEE80211_CHAN_DISABLED)
4454 request->channels[i] = chan;
4465 request->n_channels = i;
4468 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4469 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4470 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4474 request->ssids[i].ssid_len = nla_len(attr);
4475 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4480 if (info->attrs[NL80211_ATTR_IE]) {
4481 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4482 memcpy((void *)request->ie,
4483 nla_data(info->attrs[NL80211_ATTR_IE]),
4487 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4488 if (wiphy->bands[i])
4490 (1 << wiphy->bands[i]->n_bitrates) - 1;
4492 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4493 nla_for_each_nested(attr,
4494 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4496 enum ieee80211_band band = nla_type(attr);
4498 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4502 err = ieee80211_get_ratemask(wiphy->bands[band],
4505 &request->rates[band]);
4511 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4512 request->flags = nla_get_u32(
4513 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4514 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4515 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4516 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4517 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4524 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4526 request->wdev = wdev;
4527 request->wiphy = &rdev->wiphy;
4528 request->scan_start = jiffies;
4530 rdev->scan_req = request;
4531 err = rdev_scan(rdev, request);
4534 nl80211_send_scan_start(rdev, wdev);
4536 dev_hold(wdev->netdev);
4539 rdev->scan_req = NULL;
4546 static int nl80211_start_sched_scan(struct sk_buff *skb,
4547 struct genl_info *info)
4549 struct cfg80211_sched_scan_request *request;
4550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4551 struct net_device *dev = info->user_ptr[1];
4552 struct nlattr *attr;
4553 struct wiphy *wiphy;
4554 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4556 enum ieee80211_band band;
4558 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4560 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4561 !rdev->ops->sched_scan_start)
4564 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4567 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4570 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4574 wiphy = &rdev->wiphy;
4576 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4577 n_channels = validate_scan_freqs(
4578 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4584 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4585 if (wiphy->bands[band])
4586 n_channels += wiphy->bands[band]->n_channels;
4589 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4590 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4594 if (n_ssids > wiphy->max_sched_scan_ssids)
4597 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4598 nla_for_each_nested(attr,
4599 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4603 if (n_match_sets > wiphy->max_match_sets)
4606 if (info->attrs[NL80211_ATTR_IE])
4607 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4611 if (ie_len > wiphy->max_sched_scan_ie_len)
4614 mutex_lock(&rdev->sched_scan_mtx);
4616 if (rdev->sched_scan_req) {
4621 request = kzalloc(sizeof(*request)
4622 + sizeof(*request->ssids) * n_ssids
4623 + sizeof(*request->match_sets) * n_match_sets
4624 + sizeof(*request->channels) * n_channels
4625 + ie_len, GFP_KERNEL);
4632 request->ssids = (void *)&request->channels[n_channels];
4633 request->n_ssids = n_ssids;
4636 request->ie = (void *)(request->ssids + n_ssids);
4638 request->ie = (void *)(request->channels + n_channels);
4643 request->match_sets = (void *)(request->ie + ie_len);
4644 else if (request->ssids)
4645 request->match_sets =
4646 (void *)(request->ssids + n_ssids);
4648 request->match_sets =
4649 (void *)(request->channels + n_channels);
4651 request->n_match_sets = n_match_sets;
4654 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4655 /* user specified, bail out if channel not found */
4656 nla_for_each_nested(attr,
4657 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4659 struct ieee80211_channel *chan;
4661 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4668 /* ignore disabled channels */
4669 if (chan->flags & IEEE80211_CHAN_DISABLED)
4672 request->channels[i] = chan;
4677 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4679 if (!wiphy->bands[band])
4681 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4682 struct ieee80211_channel *chan;
4684 chan = &wiphy->bands[band]->channels[j];
4686 if (chan->flags & IEEE80211_CHAN_DISABLED)
4689 request->channels[i] = chan;
4700 request->n_channels = i;
4703 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4704 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4706 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4710 request->ssids[i].ssid_len = nla_len(attr);
4711 memcpy(request->ssids[i].ssid, nla_data(attr),
4718 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4719 nla_for_each_nested(attr,
4720 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4722 struct nlattr *ssid, *rssi;
4724 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4725 nla_data(attr), nla_len(attr),
4726 nl80211_match_policy);
4727 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4729 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4733 memcpy(request->match_sets[i].ssid.ssid,
4734 nla_data(ssid), nla_len(ssid));
4735 request->match_sets[i].ssid.ssid_len =
4738 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4740 request->rssi_thold = nla_get_u32(rssi);
4742 request->rssi_thold =
4743 NL80211_SCAN_RSSI_THOLD_OFF;
4748 if (info->attrs[NL80211_ATTR_IE]) {
4749 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4750 memcpy((void *)request->ie,
4751 nla_data(info->attrs[NL80211_ATTR_IE]),
4755 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4756 request->flags = nla_get_u32(
4757 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4758 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4759 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4760 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4761 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4768 request->wiphy = &rdev->wiphy;
4769 request->interval = interval;
4770 request->scan_start = jiffies;
4772 err = rdev_sched_scan_start(rdev, dev, request);
4774 rdev->sched_scan_req = request;
4775 nl80211_send_sched_scan(rdev, dev,
4776 NL80211_CMD_START_SCHED_SCAN);
4783 mutex_unlock(&rdev->sched_scan_mtx);
4787 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4788 struct genl_info *info)
4790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4793 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4794 !rdev->ops->sched_scan_stop)
4797 mutex_lock(&rdev->sched_scan_mtx);
4798 err = __cfg80211_stop_sched_scan(rdev, false);
4799 mutex_unlock(&rdev->sched_scan_mtx);
4804 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4806 struct cfg80211_registered_device *rdev,
4807 struct wireless_dev *wdev,
4808 struct cfg80211_internal_bss *intbss)
4810 struct cfg80211_bss *res = &intbss->pub;
4814 ASSERT_WDEV_LOCK(wdev);
4816 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
4817 NL80211_CMD_NEW_SCAN_RESULTS);
4821 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4823 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4824 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4825 goto nla_put_failure;
4827 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4829 goto nla_put_failure;
4830 if ((!is_zero_ether_addr(res->bssid) &&
4831 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4832 (res->information_elements && res->len_information_elements &&
4833 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4834 res->len_information_elements,
4835 res->information_elements)) ||
4836 (res->beacon_ies && res->len_beacon_ies &&
4837 res->beacon_ies != res->information_elements &&
4838 nla_put(msg, NL80211_BSS_BEACON_IES,
4839 res->len_beacon_ies, res->beacon_ies)))
4840 goto nla_put_failure;
4842 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4843 goto nla_put_failure;
4844 if (res->beacon_interval &&
4845 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4846 goto nla_put_failure;
4847 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4848 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4849 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4850 jiffies_to_msecs(jiffies - intbss->ts)))
4851 goto nla_put_failure;
4853 switch (rdev->wiphy.signal_type) {
4854 case CFG80211_SIGNAL_TYPE_MBM:
4855 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4856 goto nla_put_failure;
4858 case CFG80211_SIGNAL_TYPE_UNSPEC:
4859 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4860 goto nla_put_failure;
4866 switch (wdev->iftype) {
4867 case NL80211_IFTYPE_P2P_CLIENT:
4868 case NL80211_IFTYPE_STATION:
4869 if (intbss == wdev->current_bss &&
4870 nla_put_u32(msg, NL80211_BSS_STATUS,
4871 NL80211_BSS_STATUS_ASSOCIATED))
4872 goto nla_put_failure;
4874 case NL80211_IFTYPE_ADHOC:
4875 if (intbss == wdev->current_bss &&
4876 nla_put_u32(msg, NL80211_BSS_STATUS,
4877 NL80211_BSS_STATUS_IBSS_JOINED))
4878 goto nla_put_failure;
4884 nla_nest_end(msg, bss);
4886 return genlmsg_end(msg, hdr);
4889 genlmsg_cancel(msg, hdr);
4893 static int nl80211_dump_scan(struct sk_buff *skb,
4894 struct netlink_callback *cb)
4896 struct cfg80211_registered_device *rdev;
4897 struct net_device *dev;
4898 struct cfg80211_internal_bss *scan;
4899 struct wireless_dev *wdev;
4900 int start = cb->args[1], idx = 0;
4903 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4907 wdev = dev->ieee80211_ptr;
4910 spin_lock_bh(&rdev->bss_lock);
4911 cfg80211_bss_expire(rdev);
4913 cb->seq = rdev->bss_generation;
4915 list_for_each_entry(scan, &rdev->bss_list, list) {
4918 if (nl80211_send_bss(skb, cb,
4919 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4920 rdev, wdev, scan) < 0) {
4926 spin_unlock_bh(&rdev->bss_lock);
4930 nl80211_finish_netdev_dump(rdev);
4935 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
4936 int flags, struct net_device *dev,
4937 struct survey_info *survey)
4940 struct nlattr *infoattr;
4942 hdr = nl80211hdr_put(msg, portid, seq, flags,
4943 NL80211_CMD_NEW_SURVEY_RESULTS);
4947 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4948 goto nla_put_failure;
4950 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4952 goto nla_put_failure;
4954 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4955 survey->channel->center_freq))
4956 goto nla_put_failure;
4958 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4959 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4960 goto nla_put_failure;
4961 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4962 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4963 goto nla_put_failure;
4964 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4965 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4966 survey->channel_time))
4967 goto nla_put_failure;
4968 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4969 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4970 survey->channel_time_busy))
4971 goto nla_put_failure;
4972 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4973 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4974 survey->channel_time_ext_busy))
4975 goto nla_put_failure;
4976 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4977 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4978 survey->channel_time_rx))
4979 goto nla_put_failure;
4980 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4981 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4982 survey->channel_time_tx))
4983 goto nla_put_failure;
4985 nla_nest_end(msg, infoattr);
4987 return genlmsg_end(msg, hdr);
4990 genlmsg_cancel(msg, hdr);
4994 static int nl80211_dump_survey(struct sk_buff *skb,
4995 struct netlink_callback *cb)
4997 struct survey_info survey;
4998 struct cfg80211_registered_device *dev;
4999 struct net_device *netdev;
5000 int survey_idx = cb->args[1];
5003 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5007 if (!dev->ops->dump_survey) {
5013 struct ieee80211_channel *chan;
5015 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
5021 /* Survey without a channel doesn't make sense */
5022 if (!survey.channel) {
5027 chan = ieee80211_get_channel(&dev->wiphy,
5028 survey.channel->center_freq);
5029 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5034 if (nl80211_send_survey(skb,
5035 NETLINK_CB(cb->skb).portid,
5036 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5044 cb->args[1] = survey_idx;
5047 nl80211_finish_netdev_dump(dev);
5051 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5053 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5054 NL80211_WPA_VERSION_2));
5057 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5060 struct net_device *dev = info->user_ptr[1];
5061 struct ieee80211_channel *chan;
5062 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5063 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5064 enum nl80211_auth_type auth_type;
5065 struct key_parse key;
5066 bool local_state_change;
5068 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5071 if (!info->attrs[NL80211_ATTR_MAC])
5074 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5077 if (!info->attrs[NL80211_ATTR_SSID])
5080 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5083 err = nl80211_parse_key(info, &key);
5088 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5090 if (!key.p.key || !key.p.key_len)
5092 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5093 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5094 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5095 key.p.key_len != WLAN_KEY_LEN_WEP104))
5107 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5108 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5117 if (!rdev->ops->auth)
5120 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5121 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5124 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5125 chan = ieee80211_get_channel(&rdev->wiphy,
5126 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5127 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5130 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5131 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5133 if (info->attrs[NL80211_ATTR_IE]) {
5134 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5135 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5138 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5139 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5142 if (auth_type == NL80211_AUTHTYPE_SAE &&
5143 !info->attrs[NL80211_ATTR_SAE_DATA])
5146 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5147 if (auth_type != NL80211_AUTHTYPE_SAE)
5149 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5150 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5151 /* need to include at least Auth Transaction and Status Code */
5152 if (sae_data_len < 4)
5156 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5159 * Since we no longer track auth state, ignore
5160 * requests to only change local state.
5162 if (local_state_change)
5165 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5166 ssid, ssid_len, ie, ie_len,
5167 key.p.key, key.p.key_len, key.idx,
5168 sae_data, sae_data_len);
5171 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5172 struct genl_info *info,
5173 struct cfg80211_crypto_settings *settings,
5176 memset(settings, 0, sizeof(*settings));
5178 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5180 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5182 proto = nla_get_u16(
5183 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5184 settings->control_port_ethertype = cpu_to_be16(proto);
5185 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5188 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5189 settings->control_port_no_encrypt = true;
5191 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5193 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5197 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5198 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5199 settings->n_ciphers_pairwise = len / sizeof(u32);
5201 if (len % sizeof(u32))
5204 if (settings->n_ciphers_pairwise > cipher_limit)
5207 memcpy(settings->ciphers_pairwise, data, len);
5209 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5210 if (!cfg80211_supported_cipher_suite(
5212 settings->ciphers_pairwise[i]))
5216 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5217 settings->cipher_group =
5218 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5219 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5220 settings->cipher_group))
5224 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5225 settings->wpa_versions =
5226 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5227 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5231 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5235 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5236 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5237 settings->n_akm_suites = len / sizeof(u32);
5239 if (len % sizeof(u32))
5242 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5245 memcpy(settings->akm_suites, data, len);
5251 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5253 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5254 struct net_device *dev = info->user_ptr[1];
5255 struct cfg80211_crypto_settings crypto;
5256 struct ieee80211_channel *chan;
5257 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5258 int err, ssid_len, ie_len = 0;
5259 bool use_mfp = false;
5261 struct ieee80211_ht_cap *ht_capa = NULL;
5262 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5264 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5267 if (!info->attrs[NL80211_ATTR_MAC] ||
5268 !info->attrs[NL80211_ATTR_SSID] ||
5269 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5272 if (!rdev->ops->assoc)
5275 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5276 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5279 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5281 chan = ieee80211_get_channel(&rdev->wiphy,
5282 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5283 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5286 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5287 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5289 if (info->attrs[NL80211_ATTR_IE]) {
5290 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5291 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5294 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5295 enum nl80211_mfp mfp =
5296 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5297 if (mfp == NL80211_MFP_REQUIRED)
5299 else if (mfp != NL80211_MFP_NO)
5303 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5304 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5306 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5307 flags |= ASSOC_REQ_DISABLE_HT;
5309 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5311 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5313 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5316 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5319 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5321 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5322 ssid, ssid_len, ie, ie_len, use_mfp,
5323 &crypto, flags, ht_capa,
5329 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5332 struct net_device *dev = info->user_ptr[1];
5333 const u8 *ie = NULL, *bssid;
5336 bool local_state_change;
5338 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5341 if (!info->attrs[NL80211_ATTR_MAC])
5344 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5347 if (!rdev->ops->deauth)
5350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5354 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5356 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5357 if (reason_code == 0) {
5358 /* Reason Code 0 is reserved */
5362 if (info->attrs[NL80211_ATTR_IE]) {
5363 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5364 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5367 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5369 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5370 local_state_change);
5373 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5376 struct net_device *dev = info->user_ptr[1];
5377 const u8 *ie = NULL, *bssid;
5380 bool local_state_change;
5382 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5385 if (!info->attrs[NL80211_ATTR_MAC])
5388 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5391 if (!rdev->ops->disassoc)
5394 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5395 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5398 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5400 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5401 if (reason_code == 0) {
5402 /* Reason Code 0 is reserved */
5406 if (info->attrs[NL80211_ATTR_IE]) {
5407 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5408 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5411 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5413 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5414 local_state_change);
5418 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5419 int mcast_rate[IEEE80211_NUM_BANDS],
5422 struct wiphy *wiphy = &rdev->wiphy;
5426 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5427 struct ieee80211_supported_band *sband;
5429 sband = wiphy->bands[band];
5433 for (i = 0; i < sband->n_bitrates; i++) {
5434 if (sband->bitrates[i].bitrate == rateval) {
5435 mcast_rate[band] = i + 1;
5445 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5448 struct net_device *dev = info->user_ptr[1];
5449 struct cfg80211_ibss_params ibss;
5450 struct wiphy *wiphy;
5451 struct cfg80211_cached_keys *connkeys = NULL;
5454 memset(&ibss, 0, sizeof(ibss));
5456 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5459 if (!info->attrs[NL80211_ATTR_SSID] ||
5460 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5463 ibss.beacon_interval = 100;
5465 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5466 ibss.beacon_interval =
5467 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5468 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5472 if (!rdev->ops->join_ibss)
5475 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5478 wiphy = &rdev->wiphy;
5480 if (info->attrs[NL80211_ATTR_MAC]) {
5481 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5483 if (!is_valid_ether_addr(ibss.bssid))
5486 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5487 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5489 if (info->attrs[NL80211_ATTR_IE]) {
5490 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5491 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5494 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5498 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
5501 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5503 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5504 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5506 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5507 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5509 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5511 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5513 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5514 struct ieee80211_supported_band *sband =
5515 wiphy->bands[ibss.chandef.chan->band];
5517 err = ieee80211_get_ratemask(sband, rates, n_rates,
5523 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5524 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5525 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5528 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5531 connkeys = nl80211_parse_connkeys(rdev,
5532 info->attrs[NL80211_ATTR_KEYS],
5534 if (IS_ERR(connkeys))
5535 return PTR_ERR(connkeys);
5537 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5545 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5547 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5553 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5556 struct net_device *dev = info->user_ptr[1];
5558 if (!rdev->ops->leave_ibss)
5561 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5564 return cfg80211_leave_ibss(rdev, dev, false);
5567 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5570 struct net_device *dev = info->user_ptr[1];
5571 int mcast_rate[IEEE80211_NUM_BANDS];
5575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5576 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5579 if (!rdev->ops->set_mcast_rate)
5582 memset(mcast_rate, 0, sizeof(mcast_rate));
5584 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5587 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5588 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5591 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5597 #ifdef CONFIG_NL80211_TESTMODE
5598 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5602 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5604 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5607 if (!info->attrs[NL80211_ATTR_TESTDATA])
5611 if (rdev->ops->testmode_cmd) {
5612 rdev->testmode_info = info;
5613 err = rdev_testmode_cmd(rdev,
5614 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5615 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5616 rdev->testmode_info = NULL;
5622 static int nl80211_testmode_dump(struct sk_buff *skb,
5623 struct netlink_callback *cb)
5625 struct cfg80211_registered_device *rdev;
5633 * 0 is a valid index, but not valid for args[0],
5634 * so we need to offset by 1.
5636 phy_idx = cb->args[0] - 1;
5638 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5639 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5644 mutex_lock(&cfg80211_mutex);
5645 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5646 nl80211_fam.attrbuf);
5648 mutex_unlock(&cfg80211_mutex);
5649 return PTR_ERR(rdev);
5651 phy_idx = rdev->wiphy_idx;
5653 mutex_unlock(&cfg80211_mutex);
5655 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5657 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5661 data = nla_data((void *)cb->args[1]);
5662 data_len = nla_len((void *)cb->args[1]);
5665 mutex_lock(&cfg80211_mutex);
5666 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5668 mutex_unlock(&cfg80211_mutex);
5671 cfg80211_lock_rdev(rdev);
5672 mutex_unlock(&cfg80211_mutex);
5674 if (!rdev->ops->testmode_dump) {
5680 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
5681 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5682 NL80211_CMD_TESTMODE);
5683 struct nlattr *tmdata;
5685 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5686 genlmsg_cancel(skb, hdr);
5690 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5692 genlmsg_cancel(skb, hdr);
5695 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
5696 nla_nest_end(skb, tmdata);
5698 if (err == -ENOBUFS || err == -ENOENT) {
5699 genlmsg_cancel(skb, hdr);
5702 genlmsg_cancel(skb, hdr);
5706 genlmsg_end(skb, hdr);
5711 cb->args[0] = phy_idx + 1;
5713 cfg80211_unlock_rdev(rdev);
5717 static struct sk_buff *
5718 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5719 int approxlen, u32 portid, u32 seq, gfp_t gfp)
5721 struct sk_buff *skb;
5723 struct nlattr *data;
5725 skb = nlmsg_new(approxlen + 100, gfp);
5729 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
5735 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5736 goto nla_put_failure;
5737 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5739 ((void **)skb->cb)[0] = rdev;
5740 ((void **)skb->cb)[1] = hdr;
5741 ((void **)skb->cb)[2] = data;
5750 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5753 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5755 if (WARN_ON(!rdev->testmode_info))
5758 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5759 rdev->testmode_info->snd_portid,
5760 rdev->testmode_info->snd_seq,
5763 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5765 int cfg80211_testmode_reply(struct sk_buff *skb)
5767 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5768 void *hdr = ((void **)skb->cb)[1];
5769 struct nlattr *data = ((void **)skb->cb)[2];
5771 if (WARN_ON(!rdev->testmode_info)) {
5776 nla_nest_end(skb, data);
5777 genlmsg_end(skb, hdr);
5778 return genlmsg_reply(skb, rdev->testmode_info);
5780 EXPORT_SYMBOL(cfg80211_testmode_reply);
5782 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5783 int approxlen, gfp_t gfp)
5785 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5787 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5789 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5791 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5793 void *hdr = ((void **)skb->cb)[1];
5794 struct nlattr *data = ((void **)skb->cb)[2];
5796 nla_nest_end(skb, data);
5797 genlmsg_end(skb, hdr);
5798 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5800 EXPORT_SYMBOL(cfg80211_testmode_event);
5803 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5806 struct net_device *dev = info->user_ptr[1];
5807 struct cfg80211_connect_params connect;
5808 struct wiphy *wiphy;
5809 struct cfg80211_cached_keys *connkeys = NULL;
5812 memset(&connect, 0, sizeof(connect));
5814 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5817 if (!info->attrs[NL80211_ATTR_SSID] ||
5818 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5821 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5823 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5824 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5825 NL80211_CMD_CONNECT))
5828 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5830 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5832 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5833 NL80211_MAX_NR_CIPHER_SUITES);
5837 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5838 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5841 wiphy = &rdev->wiphy;
5843 connect.bg_scan_period = -1;
5844 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5845 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5846 connect.bg_scan_period =
5847 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5850 if (info->attrs[NL80211_ATTR_MAC])
5851 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5852 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5853 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5855 if (info->attrs[NL80211_ATTR_IE]) {
5856 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5857 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5860 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5862 ieee80211_get_channel(wiphy,
5863 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5864 if (!connect.channel ||
5865 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5869 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5870 connkeys = nl80211_parse_connkeys(rdev,
5871 info->attrs[NL80211_ATTR_KEYS], NULL);
5872 if (IS_ERR(connkeys))
5873 return PTR_ERR(connkeys);
5876 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5877 connect.flags |= ASSOC_REQ_DISABLE_HT;
5879 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5880 memcpy(&connect.ht_capa_mask,
5881 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5882 sizeof(connect.ht_capa_mask));
5884 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5885 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5889 memcpy(&connect.ht_capa,
5890 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5891 sizeof(connect.ht_capa));
5894 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5900 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5903 struct net_device *dev = info->user_ptr[1];
5906 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5907 reason = WLAN_REASON_DEAUTH_LEAVING;
5909 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5914 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5915 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5918 return cfg80211_disconnect(rdev, dev, reason, true);
5921 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5923 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5928 if (!info->attrs[NL80211_ATTR_PID])
5931 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5933 net = get_net_ns_by_pid(pid);
5935 return PTR_ERR(net);
5939 /* check if anything to do */
5940 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5941 err = cfg80211_switch_netns(rdev, net);
5947 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5950 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5951 struct cfg80211_pmksa *pmksa) = NULL;
5952 struct net_device *dev = info->user_ptr[1];
5953 struct cfg80211_pmksa pmksa;
5955 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5957 if (!info->attrs[NL80211_ATTR_MAC])
5960 if (!info->attrs[NL80211_ATTR_PMKID])
5963 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5964 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5966 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5967 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5970 switch (info->genlhdr->cmd) {
5971 case NL80211_CMD_SET_PMKSA:
5972 rdev_ops = rdev->ops->set_pmksa;
5974 case NL80211_CMD_DEL_PMKSA:
5975 rdev_ops = rdev->ops->del_pmksa;
5985 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5988 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5991 struct net_device *dev = info->user_ptr[1];
5993 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5994 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5997 if (!rdev->ops->flush_pmksa)
6000 return rdev_flush_pmksa(rdev, dev);
6003 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6006 struct net_device *dev = info->user_ptr[1];
6007 u8 action_code, dialog_token;
6011 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6012 !rdev->ops->tdls_mgmt)
6015 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6016 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6017 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6018 !info->attrs[NL80211_ATTR_IE] ||
6019 !info->attrs[NL80211_ATTR_MAC])
6022 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6023 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6024 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6025 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6027 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6028 dialog_token, status_code,
6029 nla_data(info->attrs[NL80211_ATTR_IE]),
6030 nla_len(info->attrs[NL80211_ATTR_IE]));
6033 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6036 struct net_device *dev = info->user_ptr[1];
6037 enum nl80211_tdls_operation operation;
6040 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6041 !rdev->ops->tdls_oper)
6044 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6045 !info->attrs[NL80211_ATTR_MAC])
6048 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6049 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6051 return rdev_tdls_oper(rdev, dev, peer, operation);
6054 static int nl80211_remain_on_channel(struct sk_buff *skb,
6055 struct genl_info *info)
6057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6058 struct wireless_dev *wdev = info->user_ptr[1];
6059 struct cfg80211_chan_def chandef;
6060 struct sk_buff *msg;
6066 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6067 !info->attrs[NL80211_ATTR_DURATION])
6070 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6072 if (!rdev->ops->remain_on_channel ||
6073 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6077 * We should be on that channel for at least a minimum amount of
6078 * time (10ms) but no longer than the driver supports.
6080 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6081 duration > rdev->wiphy.max_remain_on_channel_duration)
6084 err = nl80211_parse_chandef(rdev, info, &chandef);
6088 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6092 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6093 NL80211_CMD_REMAIN_ON_CHANNEL);
6100 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6106 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6107 goto nla_put_failure;
6109 genlmsg_end(msg, hdr);
6111 return genlmsg_reply(msg, info);
6120 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6121 struct genl_info *info)
6123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6124 struct wireless_dev *wdev = info->user_ptr[1];
6127 if (!info->attrs[NL80211_ATTR_COOKIE])
6130 if (!rdev->ops->cancel_remain_on_channel)
6133 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6135 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6138 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6139 u8 *rates, u8 rates_len)
6144 for (i = 0; i < rates_len; i++) {
6145 int rate = (rates[i] & 0x7f) * 5;
6147 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6148 struct ieee80211_rate *srate =
6149 &sband->bitrates[ridx];
6150 if (rate == srate->bitrate) {
6155 if (ridx == sband->n_bitrates)
6156 return 0; /* rate not found */
6162 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6163 u8 *rates, u8 rates_len,
6164 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6168 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6170 for (i = 0; i < rates_len; i++) {
6173 ridx = rates[i] / 8;
6174 rbit = BIT(rates[i] % 8);
6176 /* check validity */
6177 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6180 /* check availability */
6181 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6190 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6191 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6192 .len = NL80211_MAX_SUPP_RATES },
6193 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6194 .len = NL80211_MAX_SUPP_HT_RATES },
6197 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6198 struct genl_info *info)
6200 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6201 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6202 struct cfg80211_bitrate_mask mask;
6204 struct net_device *dev = info->user_ptr[1];
6205 struct nlattr *tx_rates;
6206 struct ieee80211_supported_band *sband;
6208 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6211 if (!rdev->ops->set_bitrate_mask)
6214 memset(&mask, 0, sizeof(mask));
6215 /* Default to all rates enabled */
6216 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6217 sband = rdev->wiphy.bands[i];
6218 mask.control[i].legacy =
6219 sband ? (1 << sband->n_bitrates) - 1 : 0;
6221 memcpy(mask.control[i].mcs,
6222 sband->ht_cap.mcs.rx_mask,
6223 sizeof(mask.control[i].mcs));
6225 memset(mask.control[i].mcs, 0,
6226 sizeof(mask.control[i].mcs));
6230 * The nested attribute uses enum nl80211_band as the index. This maps
6231 * directly to the enum ieee80211_band values used in cfg80211.
6233 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6234 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6236 enum ieee80211_band band = nla_type(tx_rates);
6237 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6239 sband = rdev->wiphy.bands[band];
6242 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6243 nla_len(tx_rates), nl80211_txattr_policy);
6244 if (tb[NL80211_TXRATE_LEGACY]) {
6245 mask.control[band].legacy = rateset_to_mask(
6247 nla_data(tb[NL80211_TXRATE_LEGACY]),
6248 nla_len(tb[NL80211_TXRATE_LEGACY]));
6249 if ((mask.control[band].legacy == 0) &&
6250 nla_len(tb[NL80211_TXRATE_LEGACY]))
6253 if (tb[NL80211_TXRATE_MCS]) {
6254 if (!ht_rateset_to_mask(
6256 nla_data(tb[NL80211_TXRATE_MCS]),
6257 nla_len(tb[NL80211_TXRATE_MCS]),
6258 mask.control[band].mcs))
6262 if (mask.control[band].legacy == 0) {
6263 /* don't allow empty legacy rates if HT
6264 * is not even supported. */
6265 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6268 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6269 if (mask.control[band].mcs[i])
6272 /* legacy and mcs rates may not be both empty */
6273 if (i == IEEE80211_HT_MCS_MASK_LEN)
6278 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6281 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6283 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6284 struct wireless_dev *wdev = info->user_ptr[1];
6285 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6287 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6290 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6291 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6293 switch (wdev->iftype) {
6294 case NL80211_IFTYPE_STATION:
6295 case NL80211_IFTYPE_ADHOC:
6296 case NL80211_IFTYPE_P2P_CLIENT:
6297 case NL80211_IFTYPE_AP:
6298 case NL80211_IFTYPE_AP_VLAN:
6299 case NL80211_IFTYPE_MESH_POINT:
6300 case NL80211_IFTYPE_P2P_GO:
6301 case NL80211_IFTYPE_P2P_DEVICE:
6307 /* not much point in registering if we can't reply */
6308 if (!rdev->ops->mgmt_tx)
6311 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6312 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6313 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6316 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6319 struct wireless_dev *wdev = info->user_ptr[1];
6320 struct cfg80211_chan_def chandef;
6324 struct sk_buff *msg = NULL;
6325 unsigned int wait = 0;
6326 bool offchan, no_cck, dont_wait_for_ack;
6328 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6330 if (!info->attrs[NL80211_ATTR_FRAME])
6333 if (!rdev->ops->mgmt_tx)
6336 switch (wdev->iftype) {
6337 case NL80211_IFTYPE_STATION:
6338 case NL80211_IFTYPE_ADHOC:
6339 case NL80211_IFTYPE_P2P_CLIENT:
6340 case NL80211_IFTYPE_AP:
6341 case NL80211_IFTYPE_AP_VLAN:
6342 case NL80211_IFTYPE_MESH_POINT:
6343 case NL80211_IFTYPE_P2P_GO:
6344 case NL80211_IFTYPE_P2P_DEVICE:
6350 if (info->attrs[NL80211_ATTR_DURATION]) {
6351 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6353 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6356 * We should wait on the channel for at least a minimum amount
6357 * of time (10ms) but no longer than the driver supports.
6359 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6360 wait > rdev->wiphy.max_remain_on_channel_duration)
6365 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6367 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6370 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6372 err = nl80211_parse_chandef(rdev, info, &chandef);
6376 if (!dont_wait_for_ack) {
6377 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6381 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6390 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
6391 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6392 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6393 no_cck, dont_wait_for_ack, &cookie);
6398 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6399 goto nla_put_failure;
6401 genlmsg_end(msg, hdr);
6402 return genlmsg_reply(msg, info);
6414 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6416 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6417 struct wireless_dev *wdev = info->user_ptr[1];
6420 if (!info->attrs[NL80211_ATTR_COOKIE])
6423 if (!rdev->ops->mgmt_tx_cancel_wait)
6426 switch (wdev->iftype) {
6427 case NL80211_IFTYPE_STATION:
6428 case NL80211_IFTYPE_ADHOC:
6429 case NL80211_IFTYPE_P2P_CLIENT:
6430 case NL80211_IFTYPE_AP:
6431 case NL80211_IFTYPE_AP_VLAN:
6432 case NL80211_IFTYPE_P2P_GO:
6433 case NL80211_IFTYPE_P2P_DEVICE:
6439 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6441 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6444 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6447 struct wireless_dev *wdev;
6448 struct net_device *dev = info->user_ptr[1];
6453 if (!info->attrs[NL80211_ATTR_PS_STATE])
6456 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6458 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6461 wdev = dev->ieee80211_ptr;
6463 if (!rdev->ops->set_power_mgmt)
6466 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6468 if (state == wdev->ps)
6471 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6477 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6480 enum nl80211_ps_state ps_state;
6481 struct wireless_dev *wdev;
6482 struct net_device *dev = info->user_ptr[1];
6483 struct sk_buff *msg;
6487 wdev = dev->ieee80211_ptr;
6489 if (!rdev->ops->set_power_mgmt)
6492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6496 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6497 NL80211_CMD_GET_POWER_SAVE);
6504 ps_state = NL80211_PS_ENABLED;
6506 ps_state = NL80211_PS_DISABLED;
6508 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6509 goto nla_put_failure;
6511 genlmsg_end(msg, hdr);
6512 return genlmsg_reply(msg, info);
6521 static struct nla_policy
6522 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6523 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6524 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6525 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6526 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6527 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6528 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6531 static int nl80211_set_cqm_txe(struct genl_info *info,
6532 u32 rate, u32 pkts, u32 intvl)
6534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6535 struct wireless_dev *wdev;
6536 struct net_device *dev = info->user_ptr[1];
6538 if ((rate < 0 || rate > 100) ||
6539 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6542 wdev = dev->ieee80211_ptr;
6544 if (!rdev->ops->set_cqm_txe_config)
6547 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6548 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6551 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6554 static int nl80211_set_cqm_rssi(struct genl_info *info,
6555 s32 threshold, u32 hysteresis)
6557 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6558 struct wireless_dev *wdev;
6559 struct net_device *dev = info->user_ptr[1];
6564 wdev = dev->ieee80211_ptr;
6566 if (!rdev->ops->set_cqm_rssi_config)
6569 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6570 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6573 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6576 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6578 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6582 cqm = info->attrs[NL80211_ATTR_CQM];
6588 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6589 nl80211_attr_cqm_policy);
6593 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6594 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6597 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6598 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6599 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6600 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6601 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6602 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6603 u32 rate, pkts, intvl;
6604 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6605 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6606 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6607 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6615 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6617 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6618 struct net_device *dev = info->user_ptr[1];
6619 struct mesh_config cfg;
6620 struct mesh_setup setup;
6623 /* start with default */
6624 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6625 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6627 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6628 /* and parse parameters if given */
6629 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6634 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6635 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6638 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6639 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6641 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6642 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6643 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6646 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6647 /* parse additional setup parameters if given */
6648 err = nl80211_parse_mesh_setup(info, &setup);
6653 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6654 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6658 /* cfg80211_join_mesh() will sort it out */
6659 setup.chandef.chan = NULL;
6662 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6665 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6668 struct net_device *dev = info->user_ptr[1];
6670 return cfg80211_leave_mesh(rdev, dev);
6674 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6676 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6677 struct sk_buff *msg;
6680 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6687 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6688 NL80211_CMD_GET_WOWLAN);
6690 goto nla_put_failure;
6693 struct nlattr *nl_wowlan;
6695 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6697 goto nla_put_failure;
6699 if ((rdev->wowlan->any &&
6700 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6701 (rdev->wowlan->disconnect &&
6702 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6703 (rdev->wowlan->magic_pkt &&
6704 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6705 (rdev->wowlan->gtk_rekey_failure &&
6706 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6707 (rdev->wowlan->eap_identity_req &&
6708 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6709 (rdev->wowlan->four_way_handshake &&
6710 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6711 (rdev->wowlan->rfkill_release &&
6712 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6713 goto nla_put_failure;
6714 if (rdev->wowlan->n_patterns) {
6715 struct nlattr *nl_pats, *nl_pat;
6718 nl_pats = nla_nest_start(msg,
6719 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6721 goto nla_put_failure;
6723 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6724 nl_pat = nla_nest_start(msg, i + 1);
6726 goto nla_put_failure;
6727 pat_len = rdev->wowlan->patterns[i].pattern_len;
6728 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6729 DIV_ROUND_UP(pat_len, 8),
6730 rdev->wowlan->patterns[i].mask) ||
6731 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6733 rdev->wowlan->patterns[i].pattern))
6734 goto nla_put_failure;
6735 nla_nest_end(msg, nl_pat);
6737 nla_nest_end(msg, nl_pats);
6740 nla_nest_end(msg, nl_wowlan);
6743 genlmsg_end(msg, hdr);
6744 return genlmsg_reply(msg, info);
6751 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6754 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6755 struct cfg80211_wowlan new_triggers = {};
6756 struct cfg80211_wowlan *ntrig;
6757 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6759 bool prev_enabled = rdev->wowlan;
6761 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6764 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6765 cfg80211_rdev_free_wowlan(rdev);
6766 rdev->wowlan = NULL;
6770 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6771 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6772 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6773 nl80211_wowlan_policy);
6777 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6778 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6780 new_triggers.any = true;
6783 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6784 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6786 new_triggers.disconnect = true;
6789 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6790 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6792 new_triggers.magic_pkt = true;
6795 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6798 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6799 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6801 new_triggers.gtk_rekey_failure = true;
6804 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6805 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6807 new_triggers.eap_identity_req = true;
6810 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6811 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6813 new_triggers.four_way_handshake = true;
6816 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6817 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6819 new_triggers.rfkill_release = true;
6822 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6825 int rem, pat_len, mask_len;
6826 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6828 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6831 if (n_patterns > wowlan->n_patterns)
6834 new_triggers.patterns = kcalloc(n_patterns,
6835 sizeof(new_triggers.patterns[0]),
6837 if (!new_triggers.patterns)
6840 new_triggers.n_patterns = n_patterns;
6843 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6845 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6846 nla_data(pat), nla_len(pat), NULL);
6848 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6849 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6851 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6852 mask_len = DIV_ROUND_UP(pat_len, 8);
6853 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6856 if (pat_len > wowlan->pattern_max_len ||
6857 pat_len < wowlan->pattern_min_len)
6860 new_triggers.patterns[i].mask =
6861 kmalloc(mask_len + pat_len, GFP_KERNEL);
6862 if (!new_triggers.patterns[i].mask) {
6866 new_triggers.patterns[i].pattern =
6867 new_triggers.patterns[i].mask + mask_len;
6868 memcpy(new_triggers.patterns[i].mask,
6869 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6871 new_triggers.patterns[i].pattern_len = pat_len;
6872 memcpy(new_triggers.patterns[i].pattern,
6873 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6879 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6884 cfg80211_rdev_free_wowlan(rdev);
6885 rdev->wowlan = ntrig;
6888 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6889 rdev_set_wakeup(rdev, rdev->wowlan);
6893 for (i = 0; i < new_triggers.n_patterns; i++)
6894 kfree(new_triggers.patterns[i].mask);
6895 kfree(new_triggers.patterns);
6900 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6902 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6903 struct net_device *dev = info->user_ptr[1];
6904 struct wireless_dev *wdev = dev->ieee80211_ptr;
6905 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6906 struct cfg80211_gtk_rekey_data rekey_data;
6909 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6912 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6913 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6914 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6915 nl80211_rekey_policy);
6919 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6921 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6923 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6926 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6928 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6930 memcpy(rekey_data.replay_ctr,
6931 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6932 NL80211_REPLAY_CTR_LEN);
6935 if (!wdev->current_bss) {
6940 if (!rdev->ops->set_rekey_data) {
6945 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
6951 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6952 struct genl_info *info)
6954 struct net_device *dev = info->user_ptr[1];
6955 struct wireless_dev *wdev = dev->ieee80211_ptr;
6957 if (wdev->iftype != NL80211_IFTYPE_AP &&
6958 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6961 if (wdev->ap_unexpected_nlportid)
6964 wdev->ap_unexpected_nlportid = info->snd_portid;
6968 static int nl80211_probe_client(struct sk_buff *skb,
6969 struct genl_info *info)
6971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6972 struct net_device *dev = info->user_ptr[1];
6973 struct wireless_dev *wdev = dev->ieee80211_ptr;
6974 struct sk_buff *msg;
6980 if (wdev->iftype != NL80211_IFTYPE_AP &&
6981 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6984 if (!info->attrs[NL80211_ATTR_MAC])
6987 if (!rdev->ops->probe_client)
6990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6994 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6995 NL80211_CMD_PROBE_CLIENT);
7002 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7004 err = rdev_probe_client(rdev, dev, addr, &cookie);
7008 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7009 goto nla_put_failure;
7011 genlmsg_end(msg, hdr);
7013 return genlmsg_reply(msg, info);
7022 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7024 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7025 struct cfg80211_beacon_registration *reg, *nreg;
7028 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7031 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7035 /* First, check if already registered. */
7036 spin_lock_bh(&rdev->beacon_registrations_lock);
7037 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7038 if (reg->nlportid == info->snd_portid) {
7043 /* Add it to the list */
7044 nreg->nlportid = info->snd_portid;
7045 list_add(&nreg->list, &rdev->beacon_registrations);
7047 spin_unlock_bh(&rdev->beacon_registrations_lock);
7051 spin_unlock_bh(&rdev->beacon_registrations_lock);
7056 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7058 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7059 struct wireless_dev *wdev = info->user_ptr[1];
7062 if (!rdev->ops->start_p2p_device)
7065 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7068 if (wdev->p2p_started)
7071 mutex_lock(&rdev->devlist_mtx);
7072 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7073 mutex_unlock(&rdev->devlist_mtx);
7077 err = rdev_start_p2p_device(rdev, wdev);
7081 wdev->p2p_started = true;
7082 mutex_lock(&rdev->devlist_mtx);
7084 mutex_unlock(&rdev->devlist_mtx);
7089 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7092 struct wireless_dev *wdev = info->user_ptr[1];
7094 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7097 if (!rdev->ops->stop_p2p_device)
7100 if (!wdev->p2p_started)
7103 rdev_stop_p2p_device(rdev, wdev);
7104 wdev->p2p_started = false;
7106 mutex_lock(&rdev->devlist_mtx);
7108 mutex_unlock(&rdev->devlist_mtx);
7110 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7111 rdev->scan_req->aborted = true;
7112 ___cfg80211_scan_done(rdev, true);
7118 #define NL80211_FLAG_NEED_WIPHY 0x01
7119 #define NL80211_FLAG_NEED_NETDEV 0x02
7120 #define NL80211_FLAG_NEED_RTNL 0x04
7121 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7122 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7123 NL80211_FLAG_CHECK_NETDEV_UP)
7124 #define NL80211_FLAG_NEED_WDEV 0x10
7125 /* If a netdev is associated, it must be UP, P2P must be started */
7126 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7127 NL80211_FLAG_CHECK_NETDEV_UP)
7129 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7130 struct genl_info *info)
7132 struct cfg80211_registered_device *rdev;
7133 struct wireless_dev *wdev;
7134 struct net_device *dev;
7135 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7140 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7141 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7145 return PTR_ERR(rdev);
7147 info->user_ptr[0] = rdev;
7148 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7149 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7150 mutex_lock(&cfg80211_mutex);
7151 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7154 mutex_unlock(&cfg80211_mutex);
7157 return PTR_ERR(wdev);
7161 rdev = wiphy_to_dev(wdev->wiphy);
7163 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7165 mutex_unlock(&cfg80211_mutex);
7171 info->user_ptr[1] = dev;
7173 info->user_ptr[1] = wdev;
7177 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7178 !netif_running(dev)) {
7179 mutex_unlock(&cfg80211_mutex);
7186 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7187 if (!wdev->p2p_started) {
7188 mutex_unlock(&cfg80211_mutex);
7195 cfg80211_lock_rdev(rdev);
7197 mutex_unlock(&cfg80211_mutex);
7199 info->user_ptr[0] = rdev;
7205 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7206 struct genl_info *info)
7208 if (info->user_ptr[0])
7209 cfg80211_unlock_rdev(info->user_ptr[0]);
7210 if (info->user_ptr[1]) {
7211 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7212 struct wireless_dev *wdev = info->user_ptr[1];
7215 dev_put(wdev->netdev);
7217 dev_put(info->user_ptr[1]);
7220 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7224 static struct genl_ops nl80211_ops[] = {
7226 .cmd = NL80211_CMD_GET_WIPHY,
7227 .doit = nl80211_get_wiphy,
7228 .dumpit = nl80211_dump_wiphy,
7229 .policy = nl80211_policy,
7230 /* can be retrieved by unprivileged users */
7231 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7234 .cmd = NL80211_CMD_SET_WIPHY,
7235 .doit = nl80211_set_wiphy,
7236 .policy = nl80211_policy,
7237 .flags = GENL_ADMIN_PERM,
7238 .internal_flags = NL80211_FLAG_NEED_RTNL,
7241 .cmd = NL80211_CMD_GET_INTERFACE,
7242 .doit = nl80211_get_interface,
7243 .dumpit = nl80211_dump_interface,
7244 .policy = nl80211_policy,
7245 /* can be retrieved by unprivileged users */
7246 .internal_flags = NL80211_FLAG_NEED_WDEV,
7249 .cmd = NL80211_CMD_SET_INTERFACE,
7250 .doit = nl80211_set_interface,
7251 .policy = nl80211_policy,
7252 .flags = GENL_ADMIN_PERM,
7253 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7254 NL80211_FLAG_NEED_RTNL,
7257 .cmd = NL80211_CMD_NEW_INTERFACE,
7258 .doit = nl80211_new_interface,
7259 .policy = nl80211_policy,
7260 .flags = GENL_ADMIN_PERM,
7261 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7262 NL80211_FLAG_NEED_RTNL,
7265 .cmd = NL80211_CMD_DEL_INTERFACE,
7266 .doit = nl80211_del_interface,
7267 .policy = nl80211_policy,
7268 .flags = GENL_ADMIN_PERM,
7269 .internal_flags = NL80211_FLAG_NEED_WDEV |
7270 NL80211_FLAG_NEED_RTNL,
7273 .cmd = NL80211_CMD_GET_KEY,
7274 .doit = nl80211_get_key,
7275 .policy = nl80211_policy,
7276 .flags = GENL_ADMIN_PERM,
7277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7278 NL80211_FLAG_NEED_RTNL,
7281 .cmd = NL80211_CMD_SET_KEY,
7282 .doit = nl80211_set_key,
7283 .policy = nl80211_policy,
7284 .flags = GENL_ADMIN_PERM,
7285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7286 NL80211_FLAG_NEED_RTNL,
7289 .cmd = NL80211_CMD_NEW_KEY,
7290 .doit = nl80211_new_key,
7291 .policy = nl80211_policy,
7292 .flags = GENL_ADMIN_PERM,
7293 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7294 NL80211_FLAG_NEED_RTNL,
7297 .cmd = NL80211_CMD_DEL_KEY,
7298 .doit = nl80211_del_key,
7299 .policy = nl80211_policy,
7300 .flags = GENL_ADMIN_PERM,
7301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7302 NL80211_FLAG_NEED_RTNL,
7305 .cmd = NL80211_CMD_SET_BEACON,
7306 .policy = nl80211_policy,
7307 .flags = GENL_ADMIN_PERM,
7308 .doit = nl80211_set_beacon,
7309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7310 NL80211_FLAG_NEED_RTNL,
7313 .cmd = NL80211_CMD_START_AP,
7314 .policy = nl80211_policy,
7315 .flags = GENL_ADMIN_PERM,
7316 .doit = nl80211_start_ap,
7317 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7318 NL80211_FLAG_NEED_RTNL,
7321 .cmd = NL80211_CMD_STOP_AP,
7322 .policy = nl80211_policy,
7323 .flags = GENL_ADMIN_PERM,
7324 .doit = nl80211_stop_ap,
7325 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7326 NL80211_FLAG_NEED_RTNL,
7329 .cmd = NL80211_CMD_GET_STATION,
7330 .doit = nl80211_get_station,
7331 .dumpit = nl80211_dump_station,
7332 .policy = nl80211_policy,
7333 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7334 NL80211_FLAG_NEED_RTNL,
7337 .cmd = NL80211_CMD_SET_STATION,
7338 .doit = nl80211_set_station,
7339 .policy = nl80211_policy,
7340 .flags = GENL_ADMIN_PERM,
7341 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7342 NL80211_FLAG_NEED_RTNL,
7345 .cmd = NL80211_CMD_NEW_STATION,
7346 .doit = nl80211_new_station,
7347 .policy = nl80211_policy,
7348 .flags = GENL_ADMIN_PERM,
7349 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7350 NL80211_FLAG_NEED_RTNL,
7353 .cmd = NL80211_CMD_DEL_STATION,
7354 .doit = nl80211_del_station,
7355 .policy = nl80211_policy,
7356 .flags = GENL_ADMIN_PERM,
7357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7358 NL80211_FLAG_NEED_RTNL,
7361 .cmd = NL80211_CMD_GET_MPATH,
7362 .doit = nl80211_get_mpath,
7363 .dumpit = nl80211_dump_mpath,
7364 .policy = nl80211_policy,
7365 .flags = GENL_ADMIN_PERM,
7366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7367 NL80211_FLAG_NEED_RTNL,
7370 .cmd = NL80211_CMD_SET_MPATH,
7371 .doit = nl80211_set_mpath,
7372 .policy = nl80211_policy,
7373 .flags = GENL_ADMIN_PERM,
7374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7375 NL80211_FLAG_NEED_RTNL,
7378 .cmd = NL80211_CMD_NEW_MPATH,
7379 .doit = nl80211_new_mpath,
7380 .policy = nl80211_policy,
7381 .flags = GENL_ADMIN_PERM,
7382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7383 NL80211_FLAG_NEED_RTNL,
7386 .cmd = NL80211_CMD_DEL_MPATH,
7387 .doit = nl80211_del_mpath,
7388 .policy = nl80211_policy,
7389 .flags = GENL_ADMIN_PERM,
7390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7391 NL80211_FLAG_NEED_RTNL,
7394 .cmd = NL80211_CMD_SET_BSS,
7395 .doit = nl80211_set_bss,
7396 .policy = nl80211_policy,
7397 .flags = GENL_ADMIN_PERM,
7398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7399 NL80211_FLAG_NEED_RTNL,
7402 .cmd = NL80211_CMD_GET_REG,
7403 .doit = nl80211_get_reg,
7404 .policy = nl80211_policy,
7405 /* can be retrieved by unprivileged users */
7408 .cmd = NL80211_CMD_SET_REG,
7409 .doit = nl80211_set_reg,
7410 .policy = nl80211_policy,
7411 .flags = GENL_ADMIN_PERM,
7414 .cmd = NL80211_CMD_REQ_SET_REG,
7415 .doit = nl80211_req_set_reg,
7416 .policy = nl80211_policy,
7417 .flags = GENL_ADMIN_PERM,
7420 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7421 .doit = nl80211_get_mesh_config,
7422 .policy = nl80211_policy,
7423 /* can be retrieved by unprivileged users */
7424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7425 NL80211_FLAG_NEED_RTNL,
7428 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7429 .doit = nl80211_update_mesh_config,
7430 .policy = nl80211_policy,
7431 .flags = GENL_ADMIN_PERM,
7432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7433 NL80211_FLAG_NEED_RTNL,
7436 .cmd = NL80211_CMD_TRIGGER_SCAN,
7437 .doit = nl80211_trigger_scan,
7438 .policy = nl80211_policy,
7439 .flags = GENL_ADMIN_PERM,
7440 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7441 NL80211_FLAG_NEED_RTNL,
7444 .cmd = NL80211_CMD_GET_SCAN,
7445 .policy = nl80211_policy,
7446 .dumpit = nl80211_dump_scan,
7449 .cmd = NL80211_CMD_START_SCHED_SCAN,
7450 .doit = nl80211_start_sched_scan,
7451 .policy = nl80211_policy,
7452 .flags = GENL_ADMIN_PERM,
7453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7454 NL80211_FLAG_NEED_RTNL,
7457 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7458 .doit = nl80211_stop_sched_scan,
7459 .policy = nl80211_policy,
7460 .flags = GENL_ADMIN_PERM,
7461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7462 NL80211_FLAG_NEED_RTNL,
7465 .cmd = NL80211_CMD_AUTHENTICATE,
7466 .doit = nl80211_authenticate,
7467 .policy = nl80211_policy,
7468 .flags = GENL_ADMIN_PERM,
7469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7470 NL80211_FLAG_NEED_RTNL,
7473 .cmd = NL80211_CMD_ASSOCIATE,
7474 .doit = nl80211_associate,
7475 .policy = nl80211_policy,
7476 .flags = GENL_ADMIN_PERM,
7477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7478 NL80211_FLAG_NEED_RTNL,
7481 .cmd = NL80211_CMD_DEAUTHENTICATE,
7482 .doit = nl80211_deauthenticate,
7483 .policy = nl80211_policy,
7484 .flags = GENL_ADMIN_PERM,
7485 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7486 NL80211_FLAG_NEED_RTNL,
7489 .cmd = NL80211_CMD_DISASSOCIATE,
7490 .doit = nl80211_disassociate,
7491 .policy = nl80211_policy,
7492 .flags = GENL_ADMIN_PERM,
7493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7494 NL80211_FLAG_NEED_RTNL,
7497 .cmd = NL80211_CMD_JOIN_IBSS,
7498 .doit = nl80211_join_ibss,
7499 .policy = nl80211_policy,
7500 .flags = GENL_ADMIN_PERM,
7501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7502 NL80211_FLAG_NEED_RTNL,
7505 .cmd = NL80211_CMD_LEAVE_IBSS,
7506 .doit = nl80211_leave_ibss,
7507 .policy = nl80211_policy,
7508 .flags = GENL_ADMIN_PERM,
7509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7510 NL80211_FLAG_NEED_RTNL,
7512 #ifdef CONFIG_NL80211_TESTMODE
7514 .cmd = NL80211_CMD_TESTMODE,
7515 .doit = nl80211_testmode_do,
7516 .dumpit = nl80211_testmode_dump,
7517 .policy = nl80211_policy,
7518 .flags = GENL_ADMIN_PERM,
7519 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7520 NL80211_FLAG_NEED_RTNL,
7524 .cmd = NL80211_CMD_CONNECT,
7525 .doit = nl80211_connect,
7526 .policy = nl80211_policy,
7527 .flags = GENL_ADMIN_PERM,
7528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7529 NL80211_FLAG_NEED_RTNL,
7532 .cmd = NL80211_CMD_DISCONNECT,
7533 .doit = nl80211_disconnect,
7534 .policy = nl80211_policy,
7535 .flags = GENL_ADMIN_PERM,
7536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7537 NL80211_FLAG_NEED_RTNL,
7540 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7541 .doit = nl80211_wiphy_netns,
7542 .policy = nl80211_policy,
7543 .flags = GENL_ADMIN_PERM,
7544 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7545 NL80211_FLAG_NEED_RTNL,
7548 .cmd = NL80211_CMD_GET_SURVEY,
7549 .policy = nl80211_policy,
7550 .dumpit = nl80211_dump_survey,
7553 .cmd = NL80211_CMD_SET_PMKSA,
7554 .doit = nl80211_setdel_pmksa,
7555 .policy = nl80211_policy,
7556 .flags = GENL_ADMIN_PERM,
7557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7558 NL80211_FLAG_NEED_RTNL,
7561 .cmd = NL80211_CMD_DEL_PMKSA,
7562 .doit = nl80211_setdel_pmksa,
7563 .policy = nl80211_policy,
7564 .flags = GENL_ADMIN_PERM,
7565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7566 NL80211_FLAG_NEED_RTNL,
7569 .cmd = NL80211_CMD_FLUSH_PMKSA,
7570 .doit = nl80211_flush_pmksa,
7571 .policy = nl80211_policy,
7572 .flags = GENL_ADMIN_PERM,
7573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7574 NL80211_FLAG_NEED_RTNL,
7577 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7578 .doit = nl80211_remain_on_channel,
7579 .policy = nl80211_policy,
7580 .flags = GENL_ADMIN_PERM,
7581 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7582 NL80211_FLAG_NEED_RTNL,
7585 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7586 .doit = nl80211_cancel_remain_on_channel,
7587 .policy = nl80211_policy,
7588 .flags = GENL_ADMIN_PERM,
7589 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7590 NL80211_FLAG_NEED_RTNL,
7593 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7594 .doit = nl80211_set_tx_bitrate_mask,
7595 .policy = nl80211_policy,
7596 .flags = GENL_ADMIN_PERM,
7597 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7598 NL80211_FLAG_NEED_RTNL,
7601 .cmd = NL80211_CMD_REGISTER_FRAME,
7602 .doit = nl80211_register_mgmt,
7603 .policy = nl80211_policy,
7604 .flags = GENL_ADMIN_PERM,
7605 .internal_flags = NL80211_FLAG_NEED_WDEV |
7606 NL80211_FLAG_NEED_RTNL,
7609 .cmd = NL80211_CMD_FRAME,
7610 .doit = nl80211_tx_mgmt,
7611 .policy = nl80211_policy,
7612 .flags = GENL_ADMIN_PERM,
7613 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7614 NL80211_FLAG_NEED_RTNL,
7617 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7618 .doit = nl80211_tx_mgmt_cancel_wait,
7619 .policy = nl80211_policy,
7620 .flags = GENL_ADMIN_PERM,
7621 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7622 NL80211_FLAG_NEED_RTNL,
7625 .cmd = NL80211_CMD_SET_POWER_SAVE,
7626 .doit = nl80211_set_power_save,
7627 .policy = nl80211_policy,
7628 .flags = GENL_ADMIN_PERM,
7629 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7630 NL80211_FLAG_NEED_RTNL,
7633 .cmd = NL80211_CMD_GET_POWER_SAVE,
7634 .doit = nl80211_get_power_save,
7635 .policy = nl80211_policy,
7636 /* can be retrieved by unprivileged users */
7637 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7638 NL80211_FLAG_NEED_RTNL,
7641 .cmd = NL80211_CMD_SET_CQM,
7642 .doit = nl80211_set_cqm,
7643 .policy = nl80211_policy,
7644 .flags = GENL_ADMIN_PERM,
7645 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7646 NL80211_FLAG_NEED_RTNL,
7649 .cmd = NL80211_CMD_SET_CHANNEL,
7650 .doit = nl80211_set_channel,
7651 .policy = nl80211_policy,
7652 .flags = GENL_ADMIN_PERM,
7653 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7654 NL80211_FLAG_NEED_RTNL,
7657 .cmd = NL80211_CMD_SET_WDS_PEER,
7658 .doit = nl80211_set_wds_peer,
7659 .policy = nl80211_policy,
7660 .flags = GENL_ADMIN_PERM,
7661 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7662 NL80211_FLAG_NEED_RTNL,
7665 .cmd = NL80211_CMD_JOIN_MESH,
7666 .doit = nl80211_join_mesh,
7667 .policy = nl80211_policy,
7668 .flags = GENL_ADMIN_PERM,
7669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7670 NL80211_FLAG_NEED_RTNL,
7673 .cmd = NL80211_CMD_LEAVE_MESH,
7674 .doit = nl80211_leave_mesh,
7675 .policy = nl80211_policy,
7676 .flags = GENL_ADMIN_PERM,
7677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7678 NL80211_FLAG_NEED_RTNL,
7682 .cmd = NL80211_CMD_GET_WOWLAN,
7683 .doit = nl80211_get_wowlan,
7684 .policy = nl80211_policy,
7685 /* can be retrieved by unprivileged users */
7686 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7687 NL80211_FLAG_NEED_RTNL,
7690 .cmd = NL80211_CMD_SET_WOWLAN,
7691 .doit = nl80211_set_wowlan,
7692 .policy = nl80211_policy,
7693 .flags = GENL_ADMIN_PERM,
7694 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7695 NL80211_FLAG_NEED_RTNL,
7699 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7700 .doit = nl80211_set_rekey_data,
7701 .policy = nl80211_policy,
7702 .flags = GENL_ADMIN_PERM,
7703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7704 NL80211_FLAG_NEED_RTNL,
7707 .cmd = NL80211_CMD_TDLS_MGMT,
7708 .doit = nl80211_tdls_mgmt,
7709 .policy = nl80211_policy,
7710 .flags = GENL_ADMIN_PERM,
7711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7712 NL80211_FLAG_NEED_RTNL,
7715 .cmd = NL80211_CMD_TDLS_OPER,
7716 .doit = nl80211_tdls_oper,
7717 .policy = nl80211_policy,
7718 .flags = GENL_ADMIN_PERM,
7719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7720 NL80211_FLAG_NEED_RTNL,
7723 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7724 .doit = nl80211_register_unexpected_frame,
7725 .policy = nl80211_policy,
7726 .flags = GENL_ADMIN_PERM,
7727 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7728 NL80211_FLAG_NEED_RTNL,
7731 .cmd = NL80211_CMD_PROBE_CLIENT,
7732 .doit = nl80211_probe_client,
7733 .policy = nl80211_policy,
7734 .flags = GENL_ADMIN_PERM,
7735 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7736 NL80211_FLAG_NEED_RTNL,
7739 .cmd = NL80211_CMD_REGISTER_BEACONS,
7740 .doit = nl80211_register_beacons,
7741 .policy = nl80211_policy,
7742 .flags = GENL_ADMIN_PERM,
7743 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7744 NL80211_FLAG_NEED_RTNL,
7747 .cmd = NL80211_CMD_SET_NOACK_MAP,
7748 .doit = nl80211_set_noack_map,
7749 .policy = nl80211_policy,
7750 .flags = GENL_ADMIN_PERM,
7751 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7752 NL80211_FLAG_NEED_RTNL,
7755 .cmd = NL80211_CMD_START_P2P_DEVICE,
7756 .doit = nl80211_start_p2p_device,
7757 .policy = nl80211_policy,
7758 .flags = GENL_ADMIN_PERM,
7759 .internal_flags = NL80211_FLAG_NEED_WDEV |
7760 NL80211_FLAG_NEED_RTNL,
7763 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7764 .doit = nl80211_stop_p2p_device,
7765 .policy = nl80211_policy,
7766 .flags = GENL_ADMIN_PERM,
7767 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7768 NL80211_FLAG_NEED_RTNL,
7771 .cmd = NL80211_CMD_SET_MCAST_RATE,
7772 .doit = nl80211_set_mcast_rate,
7773 .policy = nl80211_policy,
7774 .flags = GENL_ADMIN_PERM,
7775 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7776 NL80211_FLAG_NEED_RTNL,
7780 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7784 /* multicast groups */
7785 static struct genl_multicast_group nl80211_config_mcgrp = {
7788 static struct genl_multicast_group nl80211_scan_mcgrp = {
7791 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7792 .name = "regulatory",
7795 /* notification functions */
7797 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7799 struct sk_buff *msg;
7801 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7805 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7810 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7811 nl80211_config_mcgrp.id, GFP_KERNEL);
7814 static int nl80211_add_scan_req(struct sk_buff *msg,
7815 struct cfg80211_registered_device *rdev)
7817 struct cfg80211_scan_request *req = rdev->scan_req;
7818 struct nlattr *nest;
7821 ASSERT_RDEV_LOCK(rdev);
7826 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7828 goto nla_put_failure;
7829 for (i = 0; i < req->n_ssids; i++) {
7830 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7831 goto nla_put_failure;
7833 nla_nest_end(msg, nest);
7835 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7837 goto nla_put_failure;
7838 for (i = 0; i < req->n_channels; i++) {
7839 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7840 goto nla_put_failure;
7842 nla_nest_end(msg, nest);
7845 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7846 goto nla_put_failure;
7849 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7856 static int nl80211_send_scan_msg(struct sk_buff *msg,
7857 struct cfg80211_registered_device *rdev,
7858 struct wireless_dev *wdev,
7859 u32 portid, u32 seq, int flags,
7864 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7868 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7869 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7870 wdev->netdev->ifindex)) ||
7871 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
7872 goto nla_put_failure;
7874 /* ignore errors and send incomplete event anyway */
7875 nl80211_add_scan_req(msg, rdev);
7877 return genlmsg_end(msg, hdr);
7880 genlmsg_cancel(msg, hdr);
7885 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7886 struct cfg80211_registered_device *rdev,
7887 struct net_device *netdev,
7888 u32 portid, u32 seq, int flags, u32 cmd)
7892 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7896 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7897 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7898 goto nla_put_failure;
7900 return genlmsg_end(msg, hdr);
7903 genlmsg_cancel(msg, hdr);
7907 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7908 struct wireless_dev *wdev)
7910 struct sk_buff *msg;
7912 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7916 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7917 NL80211_CMD_TRIGGER_SCAN) < 0) {
7922 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7923 nl80211_scan_mcgrp.id, GFP_KERNEL);
7926 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7927 struct wireless_dev *wdev)
7929 struct sk_buff *msg;
7931 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7935 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7936 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7941 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7942 nl80211_scan_mcgrp.id, GFP_KERNEL);
7945 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7946 struct wireless_dev *wdev)
7948 struct sk_buff *msg;
7950 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7954 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7955 NL80211_CMD_SCAN_ABORTED) < 0) {
7960 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7961 nl80211_scan_mcgrp.id, GFP_KERNEL);
7964 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7965 struct net_device *netdev)
7967 struct sk_buff *msg;
7969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7973 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7974 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7979 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7980 nl80211_scan_mcgrp.id, GFP_KERNEL);
7983 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7984 struct net_device *netdev, u32 cmd)
7986 struct sk_buff *msg;
7988 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7992 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7997 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7998 nl80211_scan_mcgrp.id, GFP_KERNEL);
8002 * This can happen on global regulatory changes or device specific settings
8003 * based on custom world regulatory domains.
8005 void nl80211_send_reg_change_event(struct regulatory_request *request)
8007 struct sk_buff *msg;
8010 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8014 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8020 /* Userspace can always count this one always being set */
8021 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8022 goto nla_put_failure;
8024 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8025 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8026 NL80211_REGDOM_TYPE_WORLD))
8027 goto nla_put_failure;
8028 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8029 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8030 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8031 goto nla_put_failure;
8032 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8033 request->intersect) {
8034 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8035 NL80211_REGDOM_TYPE_INTERSECTION))
8036 goto nla_put_failure;
8038 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8039 NL80211_REGDOM_TYPE_COUNTRY) ||
8040 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8042 goto nla_put_failure;
8045 if (wiphy_idx_valid(request->wiphy_idx) &&
8046 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8047 goto nla_put_failure;
8049 genlmsg_end(msg, hdr);
8052 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8059 genlmsg_cancel(msg, hdr);
8063 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8064 struct net_device *netdev,
8065 const u8 *buf, size_t len,
8066 enum nl80211_commands cmd, gfp_t gfp)
8068 struct sk_buff *msg;
8071 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8075 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8081 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8082 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8083 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8084 goto nla_put_failure;
8086 genlmsg_end(msg, hdr);
8088 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8089 nl80211_mlme_mcgrp.id, gfp);
8093 genlmsg_cancel(msg, hdr);
8097 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8098 struct net_device *netdev, const u8 *buf,
8099 size_t len, gfp_t gfp)
8101 nl80211_send_mlme_event(rdev, netdev, buf, len,
8102 NL80211_CMD_AUTHENTICATE, gfp);
8105 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8106 struct net_device *netdev, const u8 *buf,
8107 size_t len, gfp_t gfp)
8109 nl80211_send_mlme_event(rdev, netdev, buf, len,
8110 NL80211_CMD_ASSOCIATE, gfp);
8113 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8114 struct net_device *netdev, const u8 *buf,
8115 size_t len, gfp_t gfp)
8117 nl80211_send_mlme_event(rdev, netdev, buf, len,
8118 NL80211_CMD_DEAUTHENTICATE, gfp);
8121 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8122 struct net_device *netdev, const u8 *buf,
8123 size_t len, gfp_t gfp)
8125 nl80211_send_mlme_event(rdev, netdev, buf, len,
8126 NL80211_CMD_DISASSOCIATE, gfp);
8129 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8130 struct net_device *netdev, const u8 *buf,
8131 size_t len, gfp_t gfp)
8133 nl80211_send_mlme_event(rdev, netdev, buf, len,
8134 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8137 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8138 struct net_device *netdev, const u8 *buf,
8139 size_t len, gfp_t gfp)
8141 nl80211_send_mlme_event(rdev, netdev, buf, len,
8142 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8145 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8146 struct net_device *netdev, int cmd,
8147 const u8 *addr, gfp_t gfp)
8149 struct sk_buff *msg;
8152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8156 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8162 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8163 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8164 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8165 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8166 goto nla_put_failure;
8168 genlmsg_end(msg, hdr);
8170 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8171 nl80211_mlme_mcgrp.id, gfp);
8175 genlmsg_cancel(msg, hdr);
8179 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8180 struct net_device *netdev, const u8 *addr,
8183 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8187 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8188 struct net_device *netdev, const u8 *addr,
8191 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8195 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8196 struct net_device *netdev, const u8 *bssid,
8197 const u8 *req_ie, size_t req_ie_len,
8198 const u8 *resp_ie, size_t resp_ie_len,
8199 u16 status, gfp_t gfp)
8201 struct sk_buff *msg;
8204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8208 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8216 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8217 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8219 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8221 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8222 goto nla_put_failure;
8224 genlmsg_end(msg, hdr);
8226 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8227 nl80211_mlme_mcgrp.id, gfp);
8231 genlmsg_cancel(msg, hdr);
8236 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8237 struct net_device *netdev, const u8 *bssid,
8238 const u8 *req_ie, size_t req_ie_len,
8239 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8241 struct sk_buff *msg;
8244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8248 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8254 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8255 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8256 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8258 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8260 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8261 goto nla_put_failure;
8263 genlmsg_end(msg, hdr);
8265 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8266 nl80211_mlme_mcgrp.id, gfp);
8270 genlmsg_cancel(msg, hdr);
8275 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8276 struct net_device *netdev, u16 reason,
8277 const u8 *ie, size_t ie_len, bool from_ap)
8279 struct sk_buff *msg;
8282 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8286 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8293 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8294 (from_ap && reason &&
8295 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8297 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8298 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8299 goto nla_put_failure;
8301 genlmsg_end(msg, hdr);
8303 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8304 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8308 genlmsg_cancel(msg, hdr);
8313 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8314 struct net_device *netdev, const u8 *bssid,
8317 struct sk_buff *msg;
8320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8332 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8333 goto nla_put_failure;
8335 genlmsg_end(msg, hdr);
8337 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8338 nl80211_mlme_mcgrp.id, gfp);
8342 genlmsg_cancel(msg, hdr);
8346 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8347 struct net_device *netdev,
8348 const u8 *macaddr, const u8* ie, u8 ie_len,
8351 struct sk_buff *msg;
8354 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8358 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8364 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8365 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8366 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8368 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8369 goto nla_put_failure;
8371 genlmsg_end(msg, hdr);
8373 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8374 nl80211_mlme_mcgrp.id, gfp);
8378 genlmsg_cancel(msg, hdr);
8382 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8383 struct net_device *netdev, const u8 *addr,
8384 enum nl80211_key_type key_type, int key_id,
8385 const u8 *tsc, gfp_t gfp)
8387 struct sk_buff *msg;
8390 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8394 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8401 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8402 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8403 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8405 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8406 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8407 goto nla_put_failure;
8409 genlmsg_end(msg, hdr);
8411 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8412 nl80211_mlme_mcgrp.id, gfp);
8416 genlmsg_cancel(msg, hdr);
8420 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8421 struct ieee80211_channel *channel_before,
8422 struct ieee80211_channel *channel_after)
8424 struct sk_buff *msg;
8426 struct nlattr *nl_freq;
8428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8439 * Since we are applying the beacon hint to a wiphy we know its
8440 * wiphy_idx is valid
8442 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8443 goto nla_put_failure;
8446 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8448 goto nla_put_failure;
8449 if (nl80211_msg_put_channel(msg, channel_before))
8450 goto nla_put_failure;
8451 nla_nest_end(msg, nl_freq);
8454 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8456 goto nla_put_failure;
8457 if (nl80211_msg_put_channel(msg, channel_after))
8458 goto nla_put_failure;
8459 nla_nest_end(msg, nl_freq);
8461 genlmsg_end(msg, hdr);
8464 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8471 genlmsg_cancel(msg, hdr);
8475 static void nl80211_send_remain_on_chan_event(
8476 int cmd, struct cfg80211_registered_device *rdev,
8477 struct wireless_dev *wdev, u64 cookie,
8478 struct ieee80211_channel *chan,
8479 unsigned int duration, gfp_t gfp)
8481 struct sk_buff *msg;
8484 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8488 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8494 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8495 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8496 wdev->netdev->ifindex)) ||
8497 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8498 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8499 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8500 NL80211_CHAN_NO_HT) ||
8501 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8502 goto nla_put_failure;
8504 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8505 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8506 goto nla_put_failure;
8508 genlmsg_end(msg, hdr);
8510 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8511 nl80211_mlme_mcgrp.id, gfp);
8515 genlmsg_cancel(msg, hdr);
8519 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8520 struct wireless_dev *wdev, u64 cookie,
8521 struct ieee80211_channel *chan,
8522 unsigned int duration, gfp_t gfp)
8524 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8525 rdev, wdev, cookie, chan,
8529 void nl80211_send_remain_on_channel_cancel(
8530 struct cfg80211_registered_device *rdev,
8531 struct wireless_dev *wdev,
8532 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
8534 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8535 rdev, wdev, cookie, chan, 0, gfp);
8538 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8539 struct net_device *dev, const u8 *mac_addr,
8540 struct station_info *sinfo, gfp_t gfp)
8542 struct sk_buff *msg;
8544 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8548 if (nl80211_send_station(msg, 0, 0, 0,
8549 rdev, dev, mac_addr, sinfo) < 0) {
8554 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8555 nl80211_mlme_mcgrp.id, gfp);
8558 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8559 struct net_device *dev, const u8 *mac_addr,
8562 struct sk_buff *msg;
8565 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8569 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8575 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8576 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8577 goto nla_put_failure;
8579 genlmsg_end(msg, hdr);
8581 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8582 nl80211_mlme_mcgrp.id, gfp);
8586 genlmsg_cancel(msg, hdr);
8590 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8591 struct net_device *dev, const u8 *mac_addr,
8592 enum nl80211_connect_failed_reason reason,
8595 struct sk_buff *msg;
8598 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8602 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8608 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8609 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8610 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8611 goto nla_put_failure;
8613 genlmsg_end(msg, hdr);
8615 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8616 nl80211_mlme_mcgrp.id, gfp);
8620 genlmsg_cancel(msg, hdr);
8624 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8625 const u8 *addr, gfp_t gfp)
8627 struct wireless_dev *wdev = dev->ieee80211_ptr;
8628 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8629 struct sk_buff *msg;
8632 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
8637 msg = nlmsg_new(100, gfp);
8641 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8647 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8648 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8649 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8650 goto nla_put_failure;
8652 err = genlmsg_end(msg, hdr);
8658 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8662 genlmsg_cancel(msg, hdr);
8667 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8669 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8673 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8674 const u8 *addr, gfp_t gfp)
8676 return __nl80211_unexpected_frame(dev,
8677 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8681 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8682 struct wireless_dev *wdev, u32 nlportid,
8683 int freq, int sig_dbm,
8684 const u8 *buf, size_t len, gfp_t gfp)
8686 struct net_device *netdev = wdev->netdev;
8687 struct sk_buff *msg;
8690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8694 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8700 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8701 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8702 netdev->ifindex)) ||
8703 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8705 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8706 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8707 goto nla_put_failure;
8709 genlmsg_end(msg, hdr);
8711 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8714 genlmsg_cancel(msg, hdr);
8719 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8720 struct wireless_dev *wdev, u64 cookie,
8721 const u8 *buf, size_t len, bool ack,
8724 struct net_device *netdev = wdev->netdev;
8725 struct sk_buff *msg;
8728 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8732 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8738 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8739 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8740 netdev->ifindex)) ||
8741 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8742 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8743 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8744 goto nla_put_failure;
8746 genlmsg_end(msg, hdr);
8748 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8752 genlmsg_cancel(msg, hdr);
8757 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8758 struct net_device *netdev,
8759 enum nl80211_cqm_rssi_threshold_event rssi_event,
8762 struct sk_buff *msg;
8763 struct nlattr *pinfoattr;
8766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8770 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8776 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8777 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8778 goto nla_put_failure;
8780 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8782 goto nla_put_failure;
8784 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8786 goto nla_put_failure;
8788 nla_nest_end(msg, pinfoattr);
8790 genlmsg_end(msg, hdr);
8792 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8793 nl80211_mlme_mcgrp.id, gfp);
8797 genlmsg_cancel(msg, hdr);
8801 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8802 struct net_device *netdev, const u8 *bssid,
8803 const u8 *replay_ctr, gfp_t gfp)
8805 struct sk_buff *msg;
8806 struct nlattr *rekey_attr;
8809 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8813 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8819 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8820 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8821 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8822 goto nla_put_failure;
8824 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8826 goto nla_put_failure;
8828 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8829 NL80211_REPLAY_CTR_LEN, replay_ctr))
8830 goto nla_put_failure;
8832 nla_nest_end(msg, rekey_attr);
8834 genlmsg_end(msg, hdr);
8836 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8837 nl80211_mlme_mcgrp.id, gfp);
8841 genlmsg_cancel(msg, hdr);
8845 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8846 struct net_device *netdev, int index,
8847 const u8 *bssid, bool preauth, gfp_t gfp)
8849 struct sk_buff *msg;
8850 struct nlattr *attr;
8853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8863 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8864 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8865 goto nla_put_failure;
8867 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8869 goto nla_put_failure;
8871 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8872 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8874 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8875 goto nla_put_failure;
8877 nla_nest_end(msg, attr);
8879 genlmsg_end(msg, hdr);
8881 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8882 nl80211_mlme_mcgrp.id, gfp);
8886 genlmsg_cancel(msg, hdr);
8890 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8891 struct net_device *netdev,
8892 struct cfg80211_chan_def *chandef, gfp_t gfp)
8894 struct sk_buff *msg;
8897 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8907 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8908 goto nla_put_failure;
8910 if (nl80211_send_chandef(msg, chandef))
8911 goto nla_put_failure;
8913 genlmsg_end(msg, hdr);
8915 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8916 nl80211_mlme_mcgrp.id, gfp);
8920 genlmsg_cancel(msg, hdr);
8925 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8926 struct net_device *netdev, const u8 *peer,
8927 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8929 struct sk_buff *msg;
8930 struct nlattr *pinfoattr;
8933 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8937 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8943 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8944 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8945 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8946 goto nla_put_failure;
8948 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8950 goto nla_put_failure;
8952 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8953 goto nla_put_failure;
8955 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8956 goto nla_put_failure;
8958 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8959 goto nla_put_failure;
8961 nla_nest_end(msg, pinfoattr);
8963 genlmsg_end(msg, hdr);
8965 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8966 nl80211_mlme_mcgrp.id, gfp);
8970 genlmsg_cancel(msg, hdr);
8975 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8976 struct net_device *netdev, const u8 *peer,
8977 u32 num_packets, gfp_t gfp)
8979 struct sk_buff *msg;
8980 struct nlattr *pinfoattr;
8983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8987 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8993 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8994 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8995 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8996 goto nla_put_failure;
8998 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9000 goto nla_put_failure;
9002 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9003 goto nla_put_failure;
9005 nla_nest_end(msg, pinfoattr);
9007 genlmsg_end(msg, hdr);
9009 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9010 nl80211_mlme_mcgrp.id, gfp);
9014 genlmsg_cancel(msg, hdr);
9018 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9019 u64 cookie, bool acked, gfp_t gfp)
9021 struct wireless_dev *wdev = dev->ieee80211_ptr;
9022 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9023 struct sk_buff *msg;
9027 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9029 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9034 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9040 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9041 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9042 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9043 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9044 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9045 goto nla_put_failure;
9047 err = genlmsg_end(msg, hdr);
9053 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9054 nl80211_mlme_mcgrp.id, gfp);
9058 genlmsg_cancel(msg, hdr);
9061 EXPORT_SYMBOL(cfg80211_probe_status);
9063 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9064 const u8 *frame, size_t len,
9065 int freq, int sig_dbm)
9067 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9068 struct sk_buff *msg;
9070 struct cfg80211_beacon_registration *reg;
9072 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9074 spin_lock_bh(&rdev->beacon_registrations_lock);
9075 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9076 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9078 spin_unlock_bh(&rdev->beacon_registrations_lock);
9082 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9084 goto nla_put_failure;
9086 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9088 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9090 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9091 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9092 goto nla_put_failure;
9094 genlmsg_end(msg, hdr);
9096 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9098 spin_unlock_bh(&rdev->beacon_registrations_lock);
9102 spin_unlock_bh(&rdev->beacon_registrations_lock);
9104 genlmsg_cancel(msg, hdr);
9107 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9109 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9110 enum nl80211_tdls_operation oper,
9111 u16 reason_code, gfp_t gfp)
9113 struct wireless_dev *wdev = dev->ieee80211_ptr;
9114 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9115 struct sk_buff *msg;
9119 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9133 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9134 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9135 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9137 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9138 goto nla_put_failure;
9140 err = genlmsg_end(msg, hdr);
9146 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9147 nl80211_mlme_mcgrp.id, gfp);
9151 genlmsg_cancel(msg, hdr);
9154 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9156 static int nl80211_netlink_notify(struct notifier_block * nb,
9157 unsigned long state,
9160 struct netlink_notify *notify = _notify;
9161 struct cfg80211_registered_device *rdev;
9162 struct wireless_dev *wdev;
9163 struct cfg80211_beacon_registration *reg, *tmp;
9165 if (state != NETLINK_URELEASE)
9170 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
9171 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
9172 cfg80211_mlme_unregister_socket(wdev, notify->portid);
9174 spin_lock_bh(&rdev->beacon_registrations_lock);
9175 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9177 if (reg->nlportid == notify->portid) {
9178 list_del(®->list);
9183 spin_unlock_bh(&rdev->beacon_registrations_lock);
9191 static struct notifier_block nl80211_netlink_notifier = {
9192 .notifier_call = nl80211_netlink_notify,
9195 /* initialisation/exit functions */
9197 int nl80211_init(void)
9201 err = genl_register_family_with_ops(&nl80211_fam,
9202 nl80211_ops, ARRAY_SIZE(nl80211_ops));
9206 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9210 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9214 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9218 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9222 #ifdef CONFIG_NL80211_TESTMODE
9223 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9228 err = netlink_register_notifier(&nl80211_netlink_notifier);
9234 genl_unregister_family(&nl80211_fam);
9238 void nl80211_exit(void)
9240 netlink_unregister_notifier(&nl80211_netlink_notifier);
9241 genl_unregister_family(&nl80211_fam);