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 },
226 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
230 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
231 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
232 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
234 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
235 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
236 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
238 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
239 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
241 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
242 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
243 .len = WLAN_MAX_KEY_LEN },
244 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
245 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
246 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
247 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
248 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
251 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
252 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
254 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
255 .len = IEEE80211_MAX_DATA_LEN },
256 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
258 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
259 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
260 .len = NL80211_MAX_SUPP_RATES },
261 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
262 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
263 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
264 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
265 .len = IEEE80211_MAX_MESH_ID_LEN },
266 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
268 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
269 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
271 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
273 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
274 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
275 .len = NL80211_MAX_SUPP_RATES },
276 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
278 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
279 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
281 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
283 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
284 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_DATA_LEN },
286 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
287 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
289 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_SSID_LEN },
291 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
292 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
293 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
294 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
295 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
296 [NL80211_ATTR_STA_FLAGS2] = {
297 .len = sizeof(struct nl80211_sta_flag_update),
299 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
301 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
302 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
303 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
304 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
305 [NL80211_ATTR_PID] = { .type = NLA_U32 },
306 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
307 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
308 .len = WLAN_PMKID_LEN },
309 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
310 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
311 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
312 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
313 .len = IEEE80211_MAX_DATA_LEN },
314 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
315 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
316 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
317 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
318 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
319 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
321 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
322 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
323 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
324 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
325 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
326 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
327 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
328 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
329 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
330 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
331 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
332 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
333 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
335 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
336 .len = IEEE80211_MAX_DATA_LEN },
337 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
338 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
339 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
340 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
342 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
343 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
344 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
345 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
346 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
347 .len = IEEE80211_MAX_DATA_LEN },
348 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
349 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
351 .len = NL80211_HT_CAPABILITY_LEN
353 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
354 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
355 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
356 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
357 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
358 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
359 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
360 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
363 /* policy for the key attributes */
364 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
365 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
366 [NL80211_KEY_IDX] = { .type = NLA_U8 },
367 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
368 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
369 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
370 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
371 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
372 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
375 /* policy for the key default flags */
376 static const struct nla_policy
377 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
378 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
379 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
382 /* policy for WoWLAN attributes */
383 static const struct nla_policy
384 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
385 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
386 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
387 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
388 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
389 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
390 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
391 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
392 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
395 /* policy for GTK rekey offload attributes */
396 static const struct nla_policy
397 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
398 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
399 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
400 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
403 static const struct nla_policy
404 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
405 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
406 .len = IEEE80211_MAX_SSID_LEN },
407 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
410 /* ifidx get helper */
411 static int nl80211_get_ifidx(struct netlink_callback *cb)
415 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
416 nl80211_fam.attrbuf, nl80211_fam.maxattr,
421 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
424 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
430 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
431 struct netlink_callback *cb,
432 struct cfg80211_registered_device **rdev,
433 struct net_device **dev)
435 int ifidx = cb->args[0];
439 ifidx = nl80211_get_ifidx(cb);
447 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
453 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
455 err = PTR_ERR(*rdev);
465 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
467 cfg80211_unlock_rdev(rdev);
472 static bool is_valid_ie_attr(const struct nlattr *attr)
480 pos = nla_data(attr);
501 /* message building helper */
502 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
505 /* since there is no private header just add the generic one */
506 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
509 static int nl80211_msg_put_channel(struct sk_buff *msg,
510 struct ieee80211_channel *chan)
512 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
514 goto nla_put_failure;
516 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
517 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
518 goto nla_put_failure;
519 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
520 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
521 goto nla_put_failure;
522 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
523 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
524 goto nla_put_failure;
525 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
526 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
527 goto nla_put_failure;
529 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
530 DBM_TO_MBM(chan->max_power)))
531 goto nla_put_failure;
539 /* netlink command implementations */
546 bool def_uni, def_multi;
549 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
551 struct nlattr *tb[NL80211_KEY_MAX + 1];
552 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
557 k->def = !!tb[NL80211_KEY_DEFAULT];
558 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
567 if (tb[NL80211_KEY_IDX])
568 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
570 if (tb[NL80211_KEY_DATA]) {
571 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
572 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
575 if (tb[NL80211_KEY_SEQ]) {
576 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
577 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
580 if (tb[NL80211_KEY_CIPHER])
581 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
583 if (tb[NL80211_KEY_TYPE]) {
584 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
585 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
589 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
590 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
591 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
592 tb[NL80211_KEY_DEFAULT_TYPES],
593 nl80211_key_default_policy);
597 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
598 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
604 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
606 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
607 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
608 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
611 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
612 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
613 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
616 if (info->attrs[NL80211_ATTR_KEY_IDX])
617 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
619 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
620 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
622 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
623 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
632 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
633 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
634 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
638 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
639 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
640 int err = nla_parse_nested(
641 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
642 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
643 nl80211_key_default_policy);
647 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
648 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
654 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
658 memset(k, 0, sizeof(*k));
662 if (info->attrs[NL80211_ATTR_KEY])
663 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
665 err = nl80211_parse_key_old(info, k);
670 if (k->def && k->defmgmt)
674 if (k->def_uni || !k->def_multi)
680 if (k->idx < 4 || k->idx > 5)
683 if (k->idx < 0 || k->idx > 3)
686 if (k->idx < 0 || k->idx > 5)
694 static struct cfg80211_cached_keys *
695 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
696 struct nlattr *keys, bool *no_ht)
698 struct key_parse parse;
700 struct cfg80211_cached_keys *result;
701 int rem, err, def = 0;
703 result = kzalloc(sizeof(*result), GFP_KERNEL);
705 return ERR_PTR(-ENOMEM);
708 result->defmgmt = -1;
710 nla_for_each_nested(key, keys, rem) {
711 memset(&parse, 0, sizeof(parse));
714 err = nl80211_parse_key_new(key, &parse);
720 if (parse.idx < 0 || parse.idx > 4)
726 result->def = parse.idx;
727 if (!parse.def_uni || !parse.def_multi)
729 } else if (parse.defmgmt)
731 err = cfg80211_validate_key_settings(rdev, &parse.p,
732 parse.idx, false, NULL);
735 result->params[parse.idx].cipher = parse.p.cipher;
736 result->params[parse.idx].key_len = parse.p.key_len;
737 result->params[parse.idx].key = result->data[parse.idx];
738 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
740 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
741 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
753 static int nl80211_key_allowed(struct wireless_dev *wdev)
755 ASSERT_WDEV_LOCK(wdev);
757 switch (wdev->iftype) {
758 case NL80211_IFTYPE_AP:
759 case NL80211_IFTYPE_AP_VLAN:
760 case NL80211_IFTYPE_P2P_GO:
761 case NL80211_IFTYPE_MESH_POINT:
763 case NL80211_IFTYPE_ADHOC:
764 if (!wdev->current_bss)
767 case NL80211_IFTYPE_STATION:
768 case NL80211_IFTYPE_P2P_CLIENT:
769 if (wdev->sme_state != CFG80211_SME_CONNECTED)
779 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
781 struct nlattr *nl_modes = nla_nest_start(msg, attr);
785 goto nla_put_failure;
789 if ((ifmodes & 1) && nla_put_flag(msg, i))
790 goto nla_put_failure;
795 nla_nest_end(msg, nl_modes);
802 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
805 struct nlattr *nl_combis;
808 nl_combis = nla_nest_start(msg,
809 NL80211_ATTR_INTERFACE_COMBINATIONS);
811 goto nla_put_failure;
813 for (i = 0; i < wiphy->n_iface_combinations; i++) {
814 const struct ieee80211_iface_combination *c;
815 struct nlattr *nl_combi, *nl_limits;
817 c = &wiphy->iface_combinations[i];
819 nl_combi = nla_nest_start(msg, i + 1);
821 goto nla_put_failure;
823 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
825 goto nla_put_failure;
827 for (j = 0; j < c->n_limits; j++) {
828 struct nlattr *nl_limit;
830 nl_limit = nla_nest_start(msg, j + 1);
832 goto nla_put_failure;
833 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
835 goto nla_put_failure;
836 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
838 goto nla_put_failure;
839 nla_nest_end(msg, nl_limit);
842 nla_nest_end(msg, nl_limits);
844 if (c->beacon_int_infra_match &&
845 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
846 goto nla_put_failure;
847 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
848 c->num_different_channels) ||
849 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
851 goto nla_put_failure;
853 nla_nest_end(msg, nl_combi);
856 nla_nest_end(msg, nl_combis);
863 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
864 struct cfg80211_registered_device *dev)
867 struct nlattr *nl_bands, *nl_band;
868 struct nlattr *nl_freqs, *nl_freq;
869 struct nlattr *nl_rates, *nl_rate;
870 struct nlattr *nl_cmds;
871 enum ieee80211_band band;
872 struct ieee80211_channel *chan;
873 struct ieee80211_rate *rate;
875 const struct ieee80211_txrx_stypes *mgmt_stypes =
876 dev->wiphy.mgmt_stypes;
878 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
882 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
883 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
884 nla_put_u32(msg, NL80211_ATTR_GENERATION,
885 cfg80211_rdev_list_generation) ||
886 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
887 dev->wiphy.retry_short) ||
888 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
889 dev->wiphy.retry_long) ||
890 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
891 dev->wiphy.frag_threshold) ||
892 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
893 dev->wiphy.rts_threshold) ||
894 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
895 dev->wiphy.coverage_class) ||
896 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
897 dev->wiphy.max_scan_ssids) ||
898 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
899 dev->wiphy.max_sched_scan_ssids) ||
900 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
901 dev->wiphy.max_scan_ie_len) ||
902 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
903 dev->wiphy.max_sched_scan_ie_len) ||
904 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
905 dev->wiphy.max_match_sets))
906 goto nla_put_failure;
908 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
909 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
910 goto nla_put_failure;
911 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
912 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
913 goto nla_put_failure;
914 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
915 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
916 goto nla_put_failure;
917 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
918 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
919 goto nla_put_failure;
920 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
921 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
922 goto nla_put_failure;
923 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
924 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
925 goto nla_put_failure;
927 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
928 sizeof(u32) * dev->wiphy.n_cipher_suites,
929 dev->wiphy.cipher_suites))
930 goto nla_put_failure;
932 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
933 dev->wiphy.max_num_pmkids))
934 goto nla_put_failure;
936 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
937 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
938 goto nla_put_failure;
940 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
941 dev->wiphy.available_antennas_tx) ||
942 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
943 dev->wiphy.available_antennas_rx))
944 goto nla_put_failure;
946 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
947 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
948 dev->wiphy.probe_resp_offload))
949 goto nla_put_failure;
951 if ((dev->wiphy.available_antennas_tx ||
952 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
953 u32 tx_ant = 0, rx_ant = 0;
955 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
957 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
959 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
961 goto nla_put_failure;
965 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
966 dev->wiphy.interface_modes))
967 goto nla_put_failure;
969 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
971 goto nla_put_failure;
973 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
974 if (!dev->wiphy.bands[band])
977 nl_band = nla_nest_start(msg, band);
979 goto nla_put_failure;
982 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
983 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
984 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
985 &dev->wiphy.bands[band]->ht_cap.mcs) ||
986 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
987 dev->wiphy.bands[band]->ht_cap.cap) ||
988 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
989 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
990 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
991 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
992 goto nla_put_failure;
995 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
996 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
997 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
998 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
999 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1000 dev->wiphy.bands[band]->vht_cap.cap)))
1001 goto nla_put_failure;
1003 /* add frequencies */
1004 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1006 goto nla_put_failure;
1008 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1009 nl_freq = nla_nest_start(msg, i);
1011 goto nla_put_failure;
1013 chan = &dev->wiphy.bands[band]->channels[i];
1015 if (nl80211_msg_put_channel(msg, chan))
1016 goto nla_put_failure;
1018 nla_nest_end(msg, nl_freq);
1021 nla_nest_end(msg, nl_freqs);
1024 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1026 goto nla_put_failure;
1028 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1029 nl_rate = nla_nest_start(msg, i);
1031 goto nla_put_failure;
1033 rate = &dev->wiphy.bands[band]->bitrates[i];
1034 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1036 goto nla_put_failure;
1037 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1039 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1040 goto nla_put_failure;
1042 nla_nest_end(msg, nl_rate);
1045 nla_nest_end(msg, nl_rates);
1047 nla_nest_end(msg, nl_band);
1049 nla_nest_end(msg, nl_bands);
1051 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1053 goto nla_put_failure;
1056 #define CMD(op, n) \
1058 if (dev->ops->op) { \
1060 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1061 goto nla_put_failure; \
1065 CMD(add_virtual_intf, NEW_INTERFACE);
1066 CMD(change_virtual_intf, SET_INTERFACE);
1067 CMD(add_key, NEW_KEY);
1068 CMD(start_ap, START_AP);
1069 CMD(add_station, NEW_STATION);
1070 CMD(add_mpath, NEW_MPATH);
1071 CMD(update_mesh_config, SET_MESH_CONFIG);
1072 CMD(change_bss, SET_BSS);
1073 CMD(auth, AUTHENTICATE);
1074 CMD(assoc, ASSOCIATE);
1075 CMD(deauth, DEAUTHENTICATE);
1076 CMD(disassoc, DISASSOCIATE);
1077 CMD(join_ibss, JOIN_IBSS);
1078 CMD(join_mesh, JOIN_MESH);
1079 CMD(set_pmksa, SET_PMKSA);
1080 CMD(del_pmksa, DEL_PMKSA);
1081 CMD(flush_pmksa, FLUSH_PMKSA);
1082 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1083 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1084 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1085 CMD(mgmt_tx, FRAME);
1086 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1087 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1089 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1090 goto nla_put_failure;
1092 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1093 dev->ops->join_mesh) {
1095 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1096 goto nla_put_failure;
1098 CMD(set_wds_peer, SET_WDS_PEER);
1099 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1100 CMD(tdls_mgmt, TDLS_MGMT);
1101 CMD(tdls_oper, TDLS_OPER);
1103 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1104 CMD(sched_scan_start, START_SCHED_SCAN);
1105 CMD(probe_client, PROBE_CLIENT);
1106 CMD(set_noack_map, SET_NOACK_MAP);
1107 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1109 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1110 goto nla_put_failure;
1112 CMD(start_p2p_device, START_P2P_DEVICE);
1114 #ifdef CONFIG_NL80211_TESTMODE
1115 CMD(testmode_cmd, TESTMODE);
1120 if (dev->ops->connect || dev->ops->auth) {
1122 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1123 goto nla_put_failure;
1126 if (dev->ops->disconnect || dev->ops->deauth) {
1128 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1129 goto nla_put_failure;
1132 nla_nest_end(msg, nl_cmds);
1134 if (dev->ops->remain_on_channel &&
1135 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1136 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1137 dev->wiphy.max_remain_on_channel_duration))
1138 goto nla_put_failure;
1140 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1141 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1142 goto nla_put_failure;
1146 struct nlattr *nl_ftypes, *nl_ifs;
1147 enum nl80211_iftype ift;
1149 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1151 goto nla_put_failure;
1153 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1154 nl_ftypes = nla_nest_start(msg, ift);
1156 goto nla_put_failure;
1158 stypes = mgmt_stypes[ift].tx;
1161 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1162 (i << 4) | IEEE80211_FTYPE_MGMT))
1163 goto nla_put_failure;
1167 nla_nest_end(msg, nl_ftypes);
1170 nla_nest_end(msg, nl_ifs);
1172 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1174 goto nla_put_failure;
1176 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1177 nl_ftypes = nla_nest_start(msg, ift);
1179 goto nla_put_failure;
1181 stypes = mgmt_stypes[ift].rx;
1184 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1185 (i << 4) | IEEE80211_FTYPE_MGMT))
1186 goto nla_put_failure;
1190 nla_nest_end(msg, nl_ftypes);
1192 nla_nest_end(msg, nl_ifs);
1196 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1197 struct nlattr *nl_wowlan;
1199 nl_wowlan = nla_nest_start(msg,
1200 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1202 goto nla_put_failure;
1204 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1205 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1206 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1207 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1208 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1209 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1210 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1211 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1212 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1214 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1216 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1218 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1220 goto nla_put_failure;
1221 if (dev->wiphy.wowlan.n_patterns) {
1222 struct nl80211_wowlan_pattern_support pat = {
1223 .max_patterns = dev->wiphy.wowlan.n_patterns,
1225 dev->wiphy.wowlan.pattern_min_len,
1227 dev->wiphy.wowlan.pattern_max_len,
1229 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1231 goto nla_put_failure;
1234 nla_nest_end(msg, nl_wowlan);
1238 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1239 dev->wiphy.software_iftypes))
1240 goto nla_put_failure;
1242 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1243 goto nla_put_failure;
1245 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1246 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1247 dev->wiphy.ap_sme_capa))
1248 goto nla_put_failure;
1250 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1251 dev->wiphy.features))
1252 goto nla_put_failure;
1254 if (dev->wiphy.ht_capa_mod_mask &&
1255 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1256 sizeof(*dev->wiphy.ht_capa_mod_mask),
1257 dev->wiphy.ht_capa_mod_mask))
1258 goto nla_put_failure;
1260 return genlmsg_end(msg, hdr);
1263 genlmsg_cancel(msg, hdr);
1267 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1270 int start = cb->args[0];
1271 struct cfg80211_registered_device *dev;
1273 mutex_lock(&cfg80211_mutex);
1274 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1275 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1279 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1280 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1286 mutex_unlock(&cfg80211_mutex);
1293 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1295 struct sk_buff *msg;
1296 struct cfg80211_registered_device *dev = info->user_ptr[0];
1298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1302 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1307 return genlmsg_reply(msg, info);
1310 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1311 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1312 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1313 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1314 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1315 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1318 static int parse_txq_params(struct nlattr *tb[],
1319 struct ieee80211_txq_params *txq_params)
1321 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1322 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1323 !tb[NL80211_TXQ_ATTR_AIFS])
1326 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1327 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1328 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1329 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1330 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1332 if (txq_params->ac >= NL80211_NUM_ACS)
1338 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1341 * You can only set the channel explicitly for WDS interfaces,
1342 * all others have their channel managed via their respective
1343 * "establish a connection" command (connect, join, ...)
1345 * For AP/GO and mesh mode, the channel can be set with the
1346 * channel userspace API, but is only stored and passed to the
1347 * low-level driver when the AP starts or the mesh is joined.
1348 * This is for backward compatibility, userspace can also give
1349 * the channel in the start-ap or join-mesh commands instead.
1351 * Monitors are special as they are normally slaved to
1352 * whatever else is going on, so they have their own special
1353 * operation to set the monitor channel if possible.
1356 wdev->iftype == NL80211_IFTYPE_AP ||
1357 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1358 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1359 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1362 static bool nl80211_valid_channel_type(struct genl_info *info,
1363 enum nl80211_channel_type *channel_type)
1365 enum nl80211_channel_type tmp;
1367 if (!info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE])
1370 tmp = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1371 if (tmp != NL80211_CHAN_NO_HT &&
1372 tmp != NL80211_CHAN_HT20 &&
1373 tmp != NL80211_CHAN_HT40PLUS &&
1374 tmp != NL80211_CHAN_HT40MINUS)
1378 *channel_type = tmp;
1383 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1384 struct wireless_dev *wdev,
1385 struct genl_info *info)
1387 struct ieee80211_channel *channel;
1388 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
1391 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1394 iftype = wdev->iftype;
1396 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1399 if (!nl80211_can_set_dev_channel(wdev))
1402 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
1403 !nl80211_valid_channel_type(info, &channel_type))
1406 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1408 mutex_lock(&rdev->devlist_mtx);
1410 case NL80211_IFTYPE_AP:
1411 case NL80211_IFTYPE_P2P_GO:
1412 if (wdev->beacon_interval) {
1416 channel = rdev_freq_to_chan(rdev, freq, channel_type);
1417 if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy,
1423 wdev->preset_chan = channel;
1424 wdev->preset_chantype = channel_type;
1427 case NL80211_IFTYPE_MESH_POINT:
1428 result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type);
1430 case NL80211_IFTYPE_MONITOR:
1431 result = cfg80211_set_monitor_channel(rdev, freq, channel_type);
1436 mutex_unlock(&rdev->devlist_mtx);
1441 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1444 struct net_device *netdev = info->user_ptr[1];
1446 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1449 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1452 struct net_device *dev = info->user_ptr[1];
1453 struct wireless_dev *wdev = dev->ieee80211_ptr;
1456 if (!info->attrs[NL80211_ATTR_MAC])
1459 if (netif_running(dev))
1462 if (!rdev->ops->set_wds_peer)
1465 if (wdev->iftype != NL80211_IFTYPE_WDS)
1468 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1469 return rdev_set_wds_peer(rdev, dev, bssid);
1473 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1475 struct cfg80211_registered_device *rdev;
1476 struct net_device *netdev = NULL;
1477 struct wireless_dev *wdev;
1478 int result = 0, rem_txq_params = 0;
1479 struct nlattr *nl_txq_params;
1481 u8 retry_short = 0, retry_long = 0;
1482 u32 frag_threshold = 0, rts_threshold = 0;
1483 u8 coverage_class = 0;
1486 * Try to find the wiphy and netdev. Normally this
1487 * function shouldn't need the netdev, but this is
1488 * done for backward compatibility -- previously
1489 * setting the channel was done per wiphy, but now
1490 * it is per netdev. Previous userland like hostapd
1491 * also passed a netdev to set_wiphy, so that it is
1492 * possible to let that go to the right netdev!
1494 mutex_lock(&cfg80211_mutex);
1496 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1497 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1499 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1500 if (netdev && netdev->ieee80211_ptr) {
1501 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1502 mutex_lock(&rdev->mtx);
1508 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1511 mutex_unlock(&cfg80211_mutex);
1512 return PTR_ERR(rdev);
1518 mutex_lock(&rdev->mtx);
1519 } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr))
1520 wdev = netdev->ieee80211_ptr;
1525 * end workaround code, by now the rdev is available
1526 * and locked, and wdev may or may not be NULL.
1529 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1530 result = cfg80211_dev_rename(
1531 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1533 mutex_unlock(&cfg80211_mutex);
1538 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1539 struct ieee80211_txq_params txq_params;
1540 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1542 if (!rdev->ops->set_txq_params) {
1543 result = -EOPNOTSUPP;
1552 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1553 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1558 if (!netif_running(netdev)) {
1563 nla_for_each_nested(nl_txq_params,
1564 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1566 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1567 nla_data(nl_txq_params),
1568 nla_len(nl_txq_params),
1570 result = parse_txq_params(tb, &txq_params);
1574 result = rdev_set_txq_params(rdev, netdev,
1581 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1582 result = __nl80211_set_channel(rdev, wdev, info);
1587 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1588 enum nl80211_tx_power_setting type;
1591 if (!rdev->ops->set_tx_power) {
1592 result = -EOPNOTSUPP;
1596 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1597 type = nla_get_u32(info->attrs[idx]);
1599 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1600 (type != NL80211_TX_POWER_AUTOMATIC)) {
1605 if (type != NL80211_TX_POWER_AUTOMATIC) {
1606 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1607 mbm = nla_get_u32(info->attrs[idx]);
1610 result = rdev_set_tx_power(rdev, type, mbm);
1615 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1616 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1618 if ((!rdev->wiphy.available_antennas_tx &&
1619 !rdev->wiphy.available_antennas_rx) ||
1620 !rdev->ops->set_antenna) {
1621 result = -EOPNOTSUPP;
1625 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1626 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1628 /* reject antenna configurations which don't match the
1629 * available antenna masks, except for the "all" mask */
1630 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1631 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1636 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1637 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1639 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1646 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1647 retry_short = nla_get_u8(
1648 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1649 if (retry_short == 0) {
1653 changed |= WIPHY_PARAM_RETRY_SHORT;
1656 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1657 retry_long = nla_get_u8(
1658 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1659 if (retry_long == 0) {
1663 changed |= WIPHY_PARAM_RETRY_LONG;
1666 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1667 frag_threshold = nla_get_u32(
1668 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1669 if (frag_threshold < 256) {
1673 if (frag_threshold != (u32) -1) {
1675 * Fragments (apart from the last one) are required to
1676 * have even length. Make the fragmentation code
1677 * simpler by stripping LSB should someone try to use
1678 * odd threshold value.
1680 frag_threshold &= ~0x1;
1682 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1685 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1686 rts_threshold = nla_get_u32(
1687 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1688 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1691 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1692 coverage_class = nla_get_u8(
1693 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1694 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1698 u8 old_retry_short, old_retry_long;
1699 u32 old_frag_threshold, old_rts_threshold;
1700 u8 old_coverage_class;
1702 if (!rdev->ops->set_wiphy_params) {
1703 result = -EOPNOTSUPP;
1707 old_retry_short = rdev->wiphy.retry_short;
1708 old_retry_long = rdev->wiphy.retry_long;
1709 old_frag_threshold = rdev->wiphy.frag_threshold;
1710 old_rts_threshold = rdev->wiphy.rts_threshold;
1711 old_coverage_class = rdev->wiphy.coverage_class;
1713 if (changed & WIPHY_PARAM_RETRY_SHORT)
1714 rdev->wiphy.retry_short = retry_short;
1715 if (changed & WIPHY_PARAM_RETRY_LONG)
1716 rdev->wiphy.retry_long = retry_long;
1717 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1718 rdev->wiphy.frag_threshold = frag_threshold;
1719 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1720 rdev->wiphy.rts_threshold = rts_threshold;
1721 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1722 rdev->wiphy.coverage_class = coverage_class;
1724 result = rdev_set_wiphy_params(rdev, changed);
1726 rdev->wiphy.retry_short = old_retry_short;
1727 rdev->wiphy.retry_long = old_retry_long;
1728 rdev->wiphy.frag_threshold = old_frag_threshold;
1729 rdev->wiphy.rts_threshold = old_rts_threshold;
1730 rdev->wiphy.coverage_class = old_coverage_class;
1735 mutex_unlock(&rdev->mtx);
1741 static inline u64 wdev_id(struct wireless_dev *wdev)
1743 return (u64)wdev->identifier |
1744 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1747 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1748 struct cfg80211_registered_device *rdev,
1749 struct wireless_dev *wdev)
1751 struct net_device *dev = wdev->netdev;
1754 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1759 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1760 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1761 goto nla_put_failure;
1763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1764 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1765 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1766 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1767 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1768 rdev->devlist_generation ^
1769 (cfg80211_rdev_list_generation << 2)))
1770 goto nla_put_failure;
1772 if (rdev->ops->get_channel) {
1773 struct ieee80211_channel *chan;
1774 enum nl80211_channel_type channel_type;
1776 chan = rdev_get_channel(rdev, wdev, &channel_type);
1778 (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1779 chan->center_freq) ||
1780 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1782 goto nla_put_failure;
1785 return genlmsg_end(msg, hdr);
1788 genlmsg_cancel(msg, hdr);
1792 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1796 int wp_start = cb->args[0];
1797 int if_start = cb->args[1];
1798 struct cfg80211_registered_device *rdev;
1799 struct wireless_dev *wdev;
1801 mutex_lock(&cfg80211_mutex);
1802 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1803 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1805 if (wp_idx < wp_start) {
1811 mutex_lock(&rdev->devlist_mtx);
1812 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1813 if (if_idx < if_start) {
1817 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1818 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1820 mutex_unlock(&rdev->devlist_mtx);
1825 mutex_unlock(&rdev->devlist_mtx);
1830 mutex_unlock(&cfg80211_mutex);
1832 cb->args[0] = wp_idx;
1833 cb->args[1] = if_idx;
1838 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1840 struct sk_buff *msg;
1841 struct cfg80211_registered_device *dev = info->user_ptr[0];
1842 struct wireless_dev *wdev = info->user_ptr[1];
1844 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1848 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1854 return genlmsg_reply(msg, info);
1857 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1858 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1859 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1860 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1861 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1862 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1865 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1867 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1875 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1876 nla, mntr_flags_policy))
1879 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1881 *mntrflags |= (1<<flag);
1886 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1887 struct net_device *netdev, u8 use_4addr,
1888 enum nl80211_iftype iftype)
1891 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1897 case NL80211_IFTYPE_AP_VLAN:
1898 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1901 case NL80211_IFTYPE_STATION:
1902 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1912 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1914 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1915 struct vif_params params;
1917 enum nl80211_iftype otype, ntype;
1918 struct net_device *dev = info->user_ptr[1];
1919 u32 _flags, *flags = NULL;
1920 bool change = false;
1922 memset(¶ms, 0, sizeof(params));
1924 otype = ntype = dev->ieee80211_ptr->iftype;
1926 if (info->attrs[NL80211_ATTR_IFTYPE]) {
1927 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
1930 if (ntype > NL80211_IFTYPE_MAX)
1934 if (info->attrs[NL80211_ATTR_MESH_ID]) {
1935 struct wireless_dev *wdev = dev->ieee80211_ptr;
1937 if (ntype != NL80211_IFTYPE_MESH_POINT)
1939 if (netif_running(dev))
1943 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
1944 IEEE80211_MAX_MESH_ID_LEN);
1945 wdev->mesh_id_up_len =
1946 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
1947 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
1948 wdev->mesh_id_up_len);
1952 if (info->attrs[NL80211_ATTR_4ADDR]) {
1953 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
1955 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
1959 params.use_4addr = -1;
1962 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
1963 if (ntype != NL80211_IFTYPE_MONITOR)
1965 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
1975 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
1979 if (!err && params.use_4addr != -1)
1980 dev->ieee80211_ptr->use_4addr = params.use_4addr;
1985 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
1987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1988 struct vif_params params;
1989 struct wireless_dev *wdev;
1990 struct sk_buff *msg;
1992 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
1995 memset(¶ms, 0, sizeof(params));
1997 if (!info->attrs[NL80211_ATTR_IFNAME])
2000 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2001 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2002 if (type > NL80211_IFTYPE_MAX)
2006 if (!rdev->ops->add_virtual_intf ||
2007 !(rdev->wiphy.interface_modes & (1 << type)))
2010 if (info->attrs[NL80211_ATTR_4ADDR]) {
2011 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2012 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2017 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2021 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2022 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2024 wdev = rdev_add_virtual_intf(rdev,
2025 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2026 type, err ? NULL : &flags, ¶ms);
2029 return PTR_ERR(wdev);
2033 case NL80211_IFTYPE_MESH_POINT:
2034 if (!info->attrs[NL80211_ATTR_MESH_ID])
2037 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2038 IEEE80211_MAX_MESH_ID_LEN);
2039 wdev->mesh_id_up_len =
2040 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2041 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2042 wdev->mesh_id_up_len);
2045 case NL80211_IFTYPE_P2P_DEVICE:
2047 * P2P Device doesn't have a netdev, so doesn't go
2048 * through the netdev notifier and must be added here
2050 mutex_init(&wdev->mtx);
2051 INIT_LIST_HEAD(&wdev->event_list);
2052 spin_lock_init(&wdev->event_lock);
2053 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2054 spin_lock_init(&wdev->mgmt_registrations_lock);
2056 mutex_lock(&rdev->devlist_mtx);
2057 wdev->identifier = ++rdev->wdev_id;
2058 list_add_rcu(&wdev->list, &rdev->wdev_list);
2059 rdev->devlist_generation++;
2060 mutex_unlock(&rdev->devlist_mtx);
2066 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2072 return genlmsg_reply(msg, info);
2075 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2078 struct wireless_dev *wdev = info->user_ptr[1];
2080 if (!rdev->ops->del_virtual_intf)
2084 * If we remove a wireless device without a netdev then clear
2085 * user_ptr[1] so that nl80211_post_doit won't dereference it
2086 * to check if it needs to do dev_put(). Otherwise it crashes
2087 * since the wdev has been freed, unlike with a netdev where
2088 * we need the dev_put() for the netdev to really be freed.
2091 info->user_ptr[1] = NULL;
2093 return rdev_del_virtual_intf(rdev, wdev);
2096 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2098 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2099 struct net_device *dev = info->user_ptr[1];
2102 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2105 if (!rdev->ops->set_noack_map)
2108 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2110 return rdev_set_noack_map(rdev, dev, noack_map);
2113 struct get_key_cookie {
2114 struct sk_buff *msg;
2119 static void get_key_callback(void *c, struct key_params *params)
2122 struct get_key_cookie *cookie = c;
2125 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2126 params->key_len, params->key)) ||
2128 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2129 params->seq_len, params->seq)) ||
2131 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2133 goto nla_put_failure;
2135 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2137 goto nla_put_failure;
2140 nla_put(cookie->msg, NL80211_KEY_DATA,
2141 params->key_len, params->key)) ||
2143 nla_put(cookie->msg, NL80211_KEY_SEQ,
2144 params->seq_len, params->seq)) ||
2146 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2148 goto nla_put_failure;
2150 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2151 goto nla_put_failure;
2153 nla_nest_end(cookie->msg, key);
2160 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2164 struct net_device *dev = info->user_ptr[1];
2166 const u8 *mac_addr = NULL;
2168 struct get_key_cookie cookie = {
2172 struct sk_buff *msg;
2174 if (info->attrs[NL80211_ATTR_KEY_IDX])
2175 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2180 if (info->attrs[NL80211_ATTR_MAC])
2181 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2183 pairwise = !!mac_addr;
2184 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2185 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2186 if (kt >= NUM_NL80211_KEYTYPES)
2188 if (kt != NL80211_KEYTYPE_GROUP &&
2189 kt != NL80211_KEYTYPE_PAIRWISE)
2191 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2194 if (!rdev->ops->get_key)
2197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2201 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2202 NL80211_CMD_NEW_KEY);
2204 return PTR_ERR(hdr);
2207 cookie.idx = key_idx;
2209 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2210 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2211 goto nla_put_failure;
2213 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2214 goto nla_put_failure;
2216 if (pairwise && mac_addr &&
2217 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2220 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2227 goto nla_put_failure;
2229 genlmsg_end(msg, hdr);
2230 return genlmsg_reply(msg, info);
2239 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2242 struct key_parse key;
2244 struct net_device *dev = info->user_ptr[1];
2246 err = nl80211_parse_key(info, &key);
2253 /* only support setting default key */
2254 if (!key.def && !key.defmgmt)
2257 wdev_lock(dev->ieee80211_ptr);
2260 if (!rdev->ops->set_default_key) {
2265 err = nl80211_key_allowed(dev->ieee80211_ptr);
2269 err = rdev_set_default_key(rdev, dev, key.idx,
2270 key.def_uni, key.def_multi);
2275 #ifdef CONFIG_CFG80211_WEXT
2276 dev->ieee80211_ptr->wext.default_key = key.idx;
2279 if (key.def_uni || !key.def_multi) {
2284 if (!rdev->ops->set_default_mgmt_key) {
2289 err = nl80211_key_allowed(dev->ieee80211_ptr);
2293 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2297 #ifdef CONFIG_CFG80211_WEXT
2298 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2303 wdev_unlock(dev->ieee80211_ptr);
2308 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2312 struct net_device *dev = info->user_ptr[1];
2313 struct key_parse key;
2314 const u8 *mac_addr = NULL;
2316 err = nl80211_parse_key(info, &key);
2323 if (info->attrs[NL80211_ATTR_MAC])
2324 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2326 if (key.type == -1) {
2328 key.type = NL80211_KEYTYPE_PAIRWISE;
2330 key.type = NL80211_KEYTYPE_GROUP;
2334 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2335 key.type != NL80211_KEYTYPE_GROUP)
2338 if (!rdev->ops->add_key)
2341 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2342 key.type == NL80211_KEYTYPE_PAIRWISE,
2346 wdev_lock(dev->ieee80211_ptr);
2347 err = nl80211_key_allowed(dev->ieee80211_ptr);
2349 err = rdev_add_key(rdev, dev, key.idx,
2350 key.type == NL80211_KEYTYPE_PAIRWISE,
2352 wdev_unlock(dev->ieee80211_ptr);
2357 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2361 struct net_device *dev = info->user_ptr[1];
2362 u8 *mac_addr = NULL;
2363 struct key_parse key;
2365 err = nl80211_parse_key(info, &key);
2369 if (info->attrs[NL80211_ATTR_MAC])
2370 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2372 if (key.type == -1) {
2374 key.type = NL80211_KEYTYPE_PAIRWISE;
2376 key.type = NL80211_KEYTYPE_GROUP;
2380 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2381 key.type != NL80211_KEYTYPE_GROUP)
2384 if (!rdev->ops->del_key)
2387 wdev_lock(dev->ieee80211_ptr);
2388 err = nl80211_key_allowed(dev->ieee80211_ptr);
2390 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2391 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2395 err = rdev_del_key(rdev, dev, key.idx,
2396 key.type == NL80211_KEYTYPE_PAIRWISE,
2399 #ifdef CONFIG_CFG80211_WEXT
2401 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2402 dev->ieee80211_ptr->wext.default_key = -1;
2403 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2404 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2407 wdev_unlock(dev->ieee80211_ptr);
2412 static int nl80211_parse_beacon(struct genl_info *info,
2413 struct cfg80211_beacon_data *bcn)
2415 bool haveinfo = false;
2417 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2418 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2419 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2420 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2423 memset(bcn, 0, sizeof(*bcn));
2425 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2426 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2427 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2433 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2434 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2436 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2443 if (info->attrs[NL80211_ATTR_IE]) {
2444 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2445 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2448 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2449 bcn->proberesp_ies =
2450 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2451 bcn->proberesp_ies_len =
2452 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2455 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2456 bcn->assocresp_ies =
2457 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2458 bcn->assocresp_ies_len =
2459 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2462 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2464 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2465 bcn->probe_resp_len =
2466 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2472 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2473 struct cfg80211_ap_settings *params)
2475 struct wireless_dev *wdev;
2478 mutex_lock(&rdev->devlist_mtx);
2480 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2481 if (wdev->iftype != NL80211_IFTYPE_AP &&
2482 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2485 if (!wdev->preset_chan)
2488 params->channel = wdev->preset_chan;
2489 params->channel_type = wdev->preset_chantype;
2494 mutex_unlock(&rdev->devlist_mtx);
2499 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2500 enum nl80211_auth_type auth_type,
2501 enum nl80211_commands cmd)
2503 if (auth_type > NL80211_AUTHTYPE_MAX)
2507 case NL80211_CMD_AUTHENTICATE:
2508 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2509 auth_type == NL80211_AUTHTYPE_SAE)
2512 case NL80211_CMD_CONNECT:
2513 case NL80211_CMD_START_AP:
2514 /* SAE not supported yet */
2515 if (auth_type == NL80211_AUTHTYPE_SAE)
2523 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2526 struct net_device *dev = info->user_ptr[1];
2527 struct wireless_dev *wdev = dev->ieee80211_ptr;
2528 struct cfg80211_ap_settings params;
2531 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2532 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2535 if (!rdev->ops->start_ap)
2538 if (wdev->beacon_interval)
2541 memset(¶ms, 0, sizeof(params));
2543 /* these are required for START_AP */
2544 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2545 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2546 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2549 err = nl80211_parse_beacon(info, ¶ms.beacon);
2553 params.beacon_interval =
2554 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2555 params.dtim_period =
2556 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2558 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2563 * In theory, some of these attributes should be required here
2564 * but since they were not used when the command was originally
2565 * added, keep them optional for old user space programs to let
2566 * them continue to work with drivers that do not need the
2567 * additional information -- drivers must check!
2569 if (info->attrs[NL80211_ATTR_SSID]) {
2570 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2572 nla_len(info->attrs[NL80211_ATTR_SSID]);
2573 if (params.ssid_len == 0 ||
2574 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2578 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2579 params.hidden_ssid = nla_get_u32(
2580 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2581 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2582 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2583 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2587 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2589 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2590 params.auth_type = nla_get_u32(
2591 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2592 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2593 NL80211_CMD_START_AP))
2596 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2598 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2599 NL80211_MAX_NR_CIPHER_SUITES);
2603 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2604 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2606 params.inactivity_timeout = nla_get_u16(
2607 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2610 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2611 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
2613 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
2614 !nl80211_valid_channel_type(info, &channel_type))
2617 params.channel = rdev_freq_to_chan(rdev,
2618 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
2620 if (!params.channel)
2622 params.channel_type = channel_type;
2623 } else if (wdev->preset_chan) {
2624 params.channel = wdev->preset_chan;
2625 params.channel_type = wdev->preset_chantype;
2626 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2629 if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel,
2630 params.channel_type))
2633 mutex_lock(&rdev->devlist_mtx);
2634 err = cfg80211_can_use_chan(rdev, wdev, params.channel,
2636 mutex_unlock(&rdev->devlist_mtx);
2641 err = rdev_start_ap(rdev, dev, ¶ms);
2643 wdev->preset_chan = params.channel;
2644 wdev->preset_chantype = params.channel_type;
2645 wdev->beacon_interval = params.beacon_interval;
2646 wdev->channel = params.channel;
2651 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2654 struct net_device *dev = info->user_ptr[1];
2655 struct wireless_dev *wdev = dev->ieee80211_ptr;
2656 struct cfg80211_beacon_data params;
2659 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2660 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2663 if (!rdev->ops->change_beacon)
2666 if (!wdev->beacon_interval)
2669 err = nl80211_parse_beacon(info, ¶ms);
2673 return rdev_change_beacon(rdev, dev, ¶ms);
2676 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2679 struct net_device *dev = info->user_ptr[1];
2681 return cfg80211_stop_ap(rdev, dev);
2684 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2685 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2686 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2687 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2688 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2689 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2690 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2693 static int parse_station_flags(struct genl_info *info,
2694 enum nl80211_iftype iftype,
2695 struct station_parameters *params)
2697 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2702 * Try parsing the new attribute first so userspace
2703 * can specify both for older kernels.
2705 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2707 struct nl80211_sta_flag_update *sta_flags;
2709 sta_flags = nla_data(nla);
2710 params->sta_flags_mask = sta_flags->mask;
2711 params->sta_flags_set = sta_flags->set;
2712 if ((params->sta_flags_mask |
2713 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2718 /* if present, parse the old attribute */
2720 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2724 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2725 nla, sta_flags_policy))
2729 * Only allow certain flags for interface types so that
2730 * other attributes are silently ignored. Remember that
2731 * this is backward compatibility code with old userspace
2732 * and shouldn't be hit in other cases anyway.
2735 case NL80211_IFTYPE_AP:
2736 case NL80211_IFTYPE_AP_VLAN:
2737 case NL80211_IFTYPE_P2P_GO:
2738 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2739 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2740 BIT(NL80211_STA_FLAG_WME) |
2741 BIT(NL80211_STA_FLAG_MFP);
2743 case NL80211_IFTYPE_P2P_CLIENT:
2744 case NL80211_IFTYPE_STATION:
2745 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2746 BIT(NL80211_STA_FLAG_TDLS_PEER);
2748 case NL80211_IFTYPE_MESH_POINT:
2749 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2750 BIT(NL80211_STA_FLAG_MFP) |
2751 BIT(NL80211_STA_FLAG_AUTHORIZED);
2756 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2758 params->sta_flags_set |= (1<<flag);
2760 /* no longer support new API additions in old API */
2761 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2769 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2772 struct nlattr *rate;
2776 rate = nla_nest_start(msg, attr);
2778 goto nla_put_failure;
2780 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2781 bitrate = cfg80211_calculate_bitrate(info);
2782 /* report 16-bit bitrate only if we can */
2783 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2785 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate)) ||
2786 (bitrate_compat > 0 &&
2787 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat)) ||
2788 ((info->flags & RATE_INFO_FLAGS_MCS) &&
2789 nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs)) ||
2790 ((info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH) &&
2791 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH)) ||
2792 ((info->flags & RATE_INFO_FLAGS_SHORT_GI) &&
2793 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI)))
2794 goto nla_put_failure;
2796 nla_nest_end(msg, rate);
2803 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
2805 struct cfg80211_registered_device *rdev,
2806 struct net_device *dev,
2807 const u8 *mac_addr, struct station_info *sinfo)
2810 struct nlattr *sinfoattr, *bss_param;
2812 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
2816 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2817 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
2818 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
2819 goto nla_put_failure;
2821 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
2823 goto nla_put_failure;
2824 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
2825 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
2826 sinfo->connected_time))
2827 goto nla_put_failure;
2828 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
2829 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
2830 sinfo->inactive_time))
2831 goto nla_put_failure;
2832 if ((sinfo->filled & STATION_INFO_RX_BYTES) &&
2833 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
2835 goto nla_put_failure;
2836 if ((sinfo->filled & STATION_INFO_TX_BYTES) &&
2837 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
2839 goto nla_put_failure;
2840 if ((sinfo->filled & STATION_INFO_LLID) &&
2841 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
2842 goto nla_put_failure;
2843 if ((sinfo->filled & STATION_INFO_PLID) &&
2844 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
2845 goto nla_put_failure;
2846 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
2847 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
2848 sinfo->plink_state))
2849 goto nla_put_failure;
2850 switch (rdev->wiphy.signal_type) {
2851 case CFG80211_SIGNAL_TYPE_MBM:
2852 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
2853 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
2855 goto nla_put_failure;
2856 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
2857 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
2859 goto nla_put_failure;
2864 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
2865 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
2866 NL80211_STA_INFO_TX_BITRATE))
2867 goto nla_put_failure;
2869 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
2870 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
2871 NL80211_STA_INFO_RX_BITRATE))
2872 goto nla_put_failure;
2874 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
2875 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
2877 goto nla_put_failure;
2878 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
2879 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
2881 goto nla_put_failure;
2882 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
2883 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
2885 goto nla_put_failure;
2886 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
2887 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
2889 goto nla_put_failure;
2890 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
2891 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
2892 sinfo->beacon_loss_count))
2893 goto nla_put_failure;
2894 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
2895 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
2897 goto nla_put_failure;
2899 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
2900 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
2901 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
2902 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
2903 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
2904 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
2905 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
2906 sinfo->bss_param.dtim_period) ||
2907 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
2908 sinfo->bss_param.beacon_interval))
2909 goto nla_put_failure;
2911 nla_nest_end(msg, bss_param);
2913 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
2914 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
2915 sizeof(struct nl80211_sta_flag_update),
2917 goto nla_put_failure;
2918 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
2919 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
2921 goto nla_put_failure;
2922 nla_nest_end(msg, sinfoattr);
2924 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
2925 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
2926 sinfo->assoc_req_ies))
2927 goto nla_put_failure;
2929 return genlmsg_end(msg, hdr);
2932 genlmsg_cancel(msg, hdr);
2936 static int nl80211_dump_station(struct sk_buff *skb,
2937 struct netlink_callback *cb)
2939 struct station_info sinfo;
2940 struct cfg80211_registered_device *dev;
2941 struct net_device *netdev;
2942 u8 mac_addr[ETH_ALEN];
2943 int sta_idx = cb->args[1];
2946 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
2950 if (!dev->ops->dump_station) {
2956 memset(&sinfo, 0, sizeof(sinfo));
2957 err = rdev_dump_station(dev, netdev, sta_idx,
2964 if (nl80211_send_station(skb,
2965 NETLINK_CB(cb->skb).portid,
2966 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2967 dev, netdev, mac_addr,
2976 cb->args[1] = sta_idx;
2979 nl80211_finish_netdev_dump(dev);
2984 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
2986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2987 struct net_device *dev = info->user_ptr[1];
2988 struct station_info sinfo;
2989 struct sk_buff *msg;
2990 u8 *mac_addr = NULL;
2993 memset(&sinfo, 0, sizeof(sinfo));
2995 if (!info->attrs[NL80211_ATTR_MAC])
2998 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3000 if (!rdev->ops->get_station)
3003 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3007 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3011 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3012 rdev, dev, mac_addr, &sinfo) < 0) {
3017 return genlmsg_reply(msg, info);
3021 * Get vlan interface making sure it is running and on the right wiphy.
3023 static struct net_device *get_vlan(struct genl_info *info,
3024 struct cfg80211_registered_device *rdev)
3026 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3027 struct net_device *v;
3033 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3035 return ERR_PTR(-ENODEV);
3037 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3042 if (!netif_running(v)) {
3050 return ERR_PTR(ret);
3053 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3057 struct net_device *dev = info->user_ptr[1];
3058 struct station_parameters params;
3059 u8 *mac_addr = NULL;
3061 memset(¶ms, 0, sizeof(params));
3063 params.listen_interval = -1;
3064 params.plink_state = -1;
3066 if (info->attrs[NL80211_ATTR_STA_AID])
3069 if (!info->attrs[NL80211_ATTR_MAC])
3072 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3074 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3075 params.supported_rates =
3076 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3077 params.supported_rates_len =
3078 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3081 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3082 params.listen_interval =
3083 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3085 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3087 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3089 if (!rdev->ops->change_station)
3092 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3095 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3096 params.plink_action =
3097 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3099 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3100 params.plink_state =
3101 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3103 switch (dev->ieee80211_ptr->iftype) {
3104 case NL80211_IFTYPE_AP:
3105 case NL80211_IFTYPE_AP_VLAN:
3106 case NL80211_IFTYPE_P2P_GO:
3107 /* disallow mesh-specific things */
3108 if (params.plink_action)
3111 /* TDLS can't be set, ... */
3112 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3115 * ... but don't bother the driver with it. This works around
3116 * a hostapd/wpa_supplicant issue -- it always includes the
3117 * TLDS_PEER flag in the mask even for AP mode.
3119 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3121 /* accept only the listed bits */
3122 if (params.sta_flags_mask &
3123 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3124 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3125 BIT(NL80211_STA_FLAG_WME) |
3126 BIT(NL80211_STA_FLAG_MFP)))
3129 /* must be last in here for error handling */
3130 params.vlan = get_vlan(info, rdev);
3131 if (IS_ERR(params.vlan))
3132 return PTR_ERR(params.vlan);
3134 case NL80211_IFTYPE_P2P_CLIENT:
3135 case NL80211_IFTYPE_STATION:
3137 * Don't allow userspace to change the TDLS_PEER flag,
3138 * but silently ignore attempts to change it since we
3139 * don't have state here to verify that it doesn't try
3140 * to change the flag.
3142 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3144 case NL80211_IFTYPE_ADHOC:
3145 /* disallow things sta doesn't support */
3146 if (params.plink_action)
3150 if (params.listen_interval >= 0)
3152 /* reject any changes other than AUTHORIZED */
3153 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3156 case NL80211_IFTYPE_MESH_POINT:
3157 /* disallow things mesh doesn't support */
3162 if (params.listen_interval >= 0)
3165 * No special handling for TDLS here -- the userspace
3166 * mesh code doesn't have this bug.
3168 if (params.sta_flags_mask &
3169 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3170 BIT(NL80211_STA_FLAG_MFP) |
3171 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3178 /* be aware of params.vlan when changing code here */
3180 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3183 dev_put(params.vlan);
3188 static struct nla_policy
3189 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3190 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3191 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3194 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3196 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3198 struct net_device *dev = info->user_ptr[1];
3199 struct station_parameters params;
3200 u8 *mac_addr = NULL;
3202 memset(¶ms, 0, sizeof(params));
3204 if (!info->attrs[NL80211_ATTR_MAC])
3207 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3210 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3213 if (!info->attrs[NL80211_ATTR_STA_AID])
3216 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3217 params.supported_rates =
3218 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3219 params.supported_rates_len =
3220 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3221 params.listen_interval =
3222 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3224 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3225 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3228 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3230 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3232 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3234 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3236 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3237 params.plink_action =
3238 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3240 if (!rdev->ops->add_station)
3243 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3246 switch (dev->ieee80211_ptr->iftype) {
3247 case NL80211_IFTYPE_AP:
3248 case NL80211_IFTYPE_AP_VLAN:
3249 case NL80211_IFTYPE_P2P_GO:
3250 /* parse WME attributes if sta is WME capable */
3251 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3252 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3253 info->attrs[NL80211_ATTR_STA_WME]) {
3254 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3257 nla = info->attrs[NL80211_ATTR_STA_WME];
3258 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3259 nl80211_sta_wme_policy);
3263 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3264 params.uapsd_queues =
3265 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3266 if (params.uapsd_queues &
3267 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3270 if (tb[NL80211_STA_WME_MAX_SP])
3272 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3275 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3278 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3280 /* TDLS peers cannot be added */
3281 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3283 /* but don't bother the driver with it */
3284 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3286 /* must be last in here for error handling */
3287 params.vlan = get_vlan(info, rdev);
3288 if (IS_ERR(params.vlan))
3289 return PTR_ERR(params.vlan);
3291 case NL80211_IFTYPE_MESH_POINT:
3292 /* TDLS peers cannot be added */
3293 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3296 case NL80211_IFTYPE_STATION:
3297 /* Only TDLS peers can be added */
3298 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3300 /* Can only add if TDLS ... */
3301 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3303 /* ... with external setup is supported */
3304 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3311 /* be aware of params.vlan when changing code here */
3313 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3316 dev_put(params.vlan);
3320 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3323 struct net_device *dev = info->user_ptr[1];
3324 u8 *mac_addr = NULL;
3326 if (info->attrs[NL80211_ATTR_MAC])
3327 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3329 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3330 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3331 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3332 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3335 if (!rdev->ops->del_station)
3338 return rdev_del_station(rdev, dev, mac_addr);
3341 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3342 int flags, struct net_device *dev,
3343 u8 *dst, u8 *next_hop,
3344 struct mpath_info *pinfo)
3347 struct nlattr *pinfoattr;
3349 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3353 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3354 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3355 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3356 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3357 goto nla_put_failure;
3359 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3361 goto nla_put_failure;
3362 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3363 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3365 goto nla_put_failure;
3366 if (((pinfo->filled & MPATH_INFO_SN) &&
3367 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3368 ((pinfo->filled & MPATH_INFO_METRIC) &&
3369 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3371 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3372 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3374 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3375 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3377 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3378 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3379 pinfo->discovery_timeout)) ||
3380 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3381 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3382 pinfo->discovery_retries)))
3383 goto nla_put_failure;
3385 nla_nest_end(msg, pinfoattr);
3387 return genlmsg_end(msg, hdr);
3390 genlmsg_cancel(msg, hdr);
3394 static int nl80211_dump_mpath(struct sk_buff *skb,
3395 struct netlink_callback *cb)
3397 struct mpath_info pinfo;
3398 struct cfg80211_registered_device *dev;
3399 struct net_device *netdev;
3401 u8 next_hop[ETH_ALEN];
3402 int path_idx = cb->args[1];
3405 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3409 if (!dev->ops->dump_mpath) {
3414 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3420 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3427 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3428 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3429 netdev, dst, next_hop,
3438 cb->args[1] = path_idx;
3441 nl80211_finish_netdev_dump(dev);
3445 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3449 struct net_device *dev = info->user_ptr[1];
3450 struct mpath_info pinfo;
3451 struct sk_buff *msg;
3453 u8 next_hop[ETH_ALEN];
3455 memset(&pinfo, 0, sizeof(pinfo));
3457 if (!info->attrs[NL80211_ATTR_MAC])
3460 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3462 if (!rdev->ops->get_mpath)
3465 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3468 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3472 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3476 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3477 dev, dst, next_hop, &pinfo) < 0) {
3482 return genlmsg_reply(msg, info);
3485 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3488 struct net_device *dev = info->user_ptr[1];
3490 u8 *next_hop = NULL;
3492 if (!info->attrs[NL80211_ATTR_MAC])
3495 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3498 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3499 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3501 if (!rdev->ops->change_mpath)
3504 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3507 return rdev_change_mpath(rdev, dev, dst, next_hop);
3510 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3513 struct net_device *dev = info->user_ptr[1];
3515 u8 *next_hop = NULL;
3517 if (!info->attrs[NL80211_ATTR_MAC])
3520 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3523 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3524 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3526 if (!rdev->ops->add_mpath)
3529 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3532 return rdev_add_mpath(rdev, dev, dst, next_hop);
3535 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3538 struct net_device *dev = info->user_ptr[1];
3541 if (info->attrs[NL80211_ATTR_MAC])
3542 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3544 if (!rdev->ops->del_mpath)
3547 return rdev_del_mpath(rdev, dev, dst);
3550 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3552 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3553 struct net_device *dev = info->user_ptr[1];
3554 struct bss_parameters params;
3556 memset(¶ms, 0, sizeof(params));
3557 /* default to not changing parameters */
3558 params.use_cts_prot = -1;
3559 params.use_short_preamble = -1;
3560 params.use_short_slot_time = -1;
3561 params.ap_isolate = -1;
3562 params.ht_opmode = -1;
3564 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3565 params.use_cts_prot =
3566 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3567 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3568 params.use_short_preamble =
3569 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3570 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3571 params.use_short_slot_time =
3572 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3573 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3574 params.basic_rates =
3575 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3576 params.basic_rates_len =
3577 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3579 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3580 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3581 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3583 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3585 if (!rdev->ops->change_bss)
3588 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3589 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3592 return rdev_change_bss(rdev, dev, ¶ms);
3595 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3596 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3597 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3598 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3599 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3600 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3601 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3604 static int parse_reg_rule(struct nlattr *tb[],
3605 struct ieee80211_reg_rule *reg_rule)
3607 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3608 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3610 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3612 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3614 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3616 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3618 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3621 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3623 freq_range->start_freq_khz =
3624 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3625 freq_range->end_freq_khz =
3626 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3627 freq_range->max_bandwidth_khz =
3628 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3630 power_rule->max_eirp =
3631 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3633 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3634 power_rule->max_antenna_gain =
3635 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3640 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3644 enum nl80211_user_reg_hint_type user_reg_hint_type;
3647 * You should only get this when cfg80211 hasn't yet initialized
3648 * completely when built-in to the kernel right between the time
3649 * window between nl80211_init() and regulatory_init(), if that is
3652 mutex_lock(&cfg80211_mutex);
3653 if (unlikely(!cfg80211_regdomain)) {
3654 mutex_unlock(&cfg80211_mutex);
3655 return -EINPROGRESS;
3657 mutex_unlock(&cfg80211_mutex);
3659 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3662 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3664 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3665 user_reg_hint_type =
3666 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3668 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3670 switch (user_reg_hint_type) {
3671 case NL80211_USER_REG_HINT_USER:
3672 case NL80211_USER_REG_HINT_CELL_BASE:
3678 r = regulatory_hint_user(data, user_reg_hint_type);
3683 static int nl80211_get_mesh_config(struct sk_buff *skb,
3684 struct genl_info *info)
3686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3687 struct net_device *dev = info->user_ptr[1];
3688 struct wireless_dev *wdev = dev->ieee80211_ptr;
3689 struct mesh_config cur_params;
3692 struct nlattr *pinfoattr;
3693 struct sk_buff *msg;
3695 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3698 if (!rdev->ops->get_mesh_config)
3702 /* If not connected, get default parameters */
3703 if (!wdev->mesh_id_len)
3704 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
3706 err = rdev_get_mesh_config(rdev, dev, &cur_params);
3712 /* Draw up a netlink message to send back */
3713 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3716 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
3717 NL80211_CMD_GET_MESH_CONFIG);
3720 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
3722 goto nla_put_failure;
3723 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3724 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
3725 cur_params.dot11MeshRetryTimeout) ||
3726 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3727 cur_params.dot11MeshConfirmTimeout) ||
3728 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
3729 cur_params.dot11MeshHoldingTimeout) ||
3730 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
3731 cur_params.dot11MeshMaxPeerLinks) ||
3732 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
3733 cur_params.dot11MeshMaxRetries) ||
3734 nla_put_u8(msg, NL80211_MESHCONF_TTL,
3735 cur_params.dot11MeshTTL) ||
3736 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
3737 cur_params.element_ttl) ||
3738 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3739 cur_params.auto_open_plinks) ||
3740 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3741 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
3742 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3743 cur_params.dot11MeshHWMPmaxPREQretries) ||
3744 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
3745 cur_params.path_refresh_time) ||
3746 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3747 cur_params.min_discovery_timeout) ||
3748 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3749 cur_params.dot11MeshHWMPactivePathTimeout) ||
3750 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3751 cur_params.dot11MeshHWMPpreqMinInterval) ||
3752 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3753 cur_params.dot11MeshHWMPperrMinInterval) ||
3754 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3755 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
3756 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
3757 cur_params.dot11MeshHWMPRootMode) ||
3758 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3759 cur_params.dot11MeshHWMPRannInterval) ||
3760 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3761 cur_params.dot11MeshGateAnnouncementProtocol) ||
3762 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
3763 cur_params.dot11MeshForwarding) ||
3764 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
3765 cur_params.rssi_threshold) ||
3766 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
3767 cur_params.ht_opmode) ||
3768 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3769 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
3770 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3771 cur_params.dot11MeshHWMProotInterval) ||
3772 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3773 cur_params.dot11MeshHWMPconfirmationInterval))
3774 goto nla_put_failure;
3775 nla_nest_end(msg, pinfoattr);
3776 genlmsg_end(msg, hdr);
3777 return genlmsg_reply(msg, info);
3780 genlmsg_cancel(msg, hdr);
3786 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
3787 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
3788 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
3789 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
3790 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
3791 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
3792 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
3793 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
3794 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
3795 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
3796 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
3797 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
3798 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
3799 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
3800 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
3801 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
3802 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
3803 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
3804 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
3805 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
3806 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
3807 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
3808 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
3809 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
3810 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
3811 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
3814 static const struct nla_policy
3815 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
3816 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
3817 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
3818 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
3819 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
3820 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
3821 .len = IEEE80211_MAX_DATA_LEN },
3822 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
3825 static int nl80211_parse_mesh_config(struct genl_info *info,
3826 struct mesh_config *cfg,
3829 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
3832 #define FILL_IN_MESH_PARAM_IF_SET(table, cfg, param, mask, attr_num, nla_fn) \
3834 if (table[attr_num]) {\
3835 cfg->param = nla_fn(table[attr_num]); \
3836 mask |= (1 << (attr_num - 1)); \
3841 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
3843 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
3844 info->attrs[NL80211_ATTR_MESH_CONFIG],
3845 nl80211_meshconf_params_policy))
3848 /* This makes sure that there aren't more than 32 mesh config
3849 * parameters (otherwise our bitfield scheme would not work.) */
3850 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
3852 /* Fill in the params struct */
3853 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout,
3854 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
3856 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout,
3857 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
3859 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout,
3860 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
3862 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks,
3863 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
3865 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries,
3866 mask, NL80211_MESHCONF_MAX_RETRIES,
3868 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL,
3869 mask, NL80211_MESHCONF_TTL, nla_get_u8);
3870 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl,
3871 mask, NL80211_MESHCONF_ELEMENT_TTL,
3873 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks,
3874 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
3876 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor, mask,
3877 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
3879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries,
3880 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
3882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time,
3883 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
3885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout,
3886 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
3888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout, mask,
3889 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
3891 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
3892 mask, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
3894 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
3895 mask, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
3897 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3898 dot11MeshHWMPnetDiameterTraversalTime, mask,
3899 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
3901 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, mask,
3902 NL80211_MESHCONF_HWMP_ROOTMODE, nla_get_u8);
3903 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, mask,
3904 NL80211_MESHCONF_HWMP_RANN_INTERVAL,
3906 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3907 dot11MeshGateAnnouncementProtocol, mask,
3908 NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
3910 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding,
3911 mask, NL80211_MESHCONF_FORWARDING,
3913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold,
3914 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
3916 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode,
3917 mask, NL80211_MESHCONF_HT_OPMODE,
3919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
3921 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
3923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval,
3924 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
3926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
3927 dot11MeshHWMPconfirmationInterval, mask,
3928 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
3935 #undef FILL_IN_MESH_PARAM_IF_SET
3938 static int nl80211_parse_mesh_setup(struct genl_info *info,
3939 struct mesh_setup *setup)
3941 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
3943 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
3945 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
3946 info->attrs[NL80211_ATTR_MESH_SETUP],
3947 nl80211_mesh_setup_params_policy))
3950 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
3951 setup->sync_method =
3952 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
3953 IEEE80211_SYNC_METHOD_VENDOR :
3954 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
3956 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
3957 setup->path_sel_proto =
3958 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
3959 IEEE80211_PATH_PROTOCOL_VENDOR :
3960 IEEE80211_PATH_PROTOCOL_HWMP;
3962 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
3963 setup->path_metric =
3964 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
3965 IEEE80211_PATH_METRIC_VENDOR :
3966 IEEE80211_PATH_METRIC_AIRTIME;
3969 if (tb[NL80211_MESH_SETUP_IE]) {
3970 struct nlattr *ieattr =
3971 tb[NL80211_MESH_SETUP_IE];
3972 if (!is_valid_ie_attr(ieattr))
3974 setup->ie = nla_data(ieattr);
3975 setup->ie_len = nla_len(ieattr);
3977 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
3978 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
3983 static int nl80211_update_mesh_config(struct sk_buff *skb,
3984 struct genl_info *info)
3986 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3987 struct net_device *dev = info->user_ptr[1];
3988 struct wireless_dev *wdev = dev->ieee80211_ptr;
3989 struct mesh_config cfg;
3993 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
3996 if (!rdev->ops->update_mesh_config)
3999 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4004 if (!wdev->mesh_id_len)
4008 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4015 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4017 struct sk_buff *msg;
4019 struct nlattr *nl_reg_rules;
4023 mutex_lock(&cfg80211_mutex);
4025 if (!cfg80211_regdomain)
4028 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4034 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4035 NL80211_CMD_GET_REG);
4039 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
4040 cfg80211_regdomain->alpha2) ||
4041 (cfg80211_regdomain->dfs_region &&
4042 nla_put_u8(msg, NL80211_ATTR_DFS_REGION,
4043 cfg80211_regdomain->dfs_region)))
4044 goto nla_put_failure;
4046 if (reg_last_request_cell_base() &&
4047 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4048 NL80211_USER_REG_HINT_CELL_BASE))
4049 goto nla_put_failure;
4051 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4053 goto nla_put_failure;
4055 for (i = 0; i < cfg80211_regdomain->n_reg_rules; i++) {
4056 struct nlattr *nl_reg_rule;
4057 const struct ieee80211_reg_rule *reg_rule;
4058 const struct ieee80211_freq_range *freq_range;
4059 const struct ieee80211_power_rule *power_rule;
4061 reg_rule = &cfg80211_regdomain->reg_rules[i];
4062 freq_range = ®_rule->freq_range;
4063 power_rule = ®_rule->power_rule;
4065 nl_reg_rule = nla_nest_start(msg, i);
4067 goto nla_put_failure;
4069 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4071 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4072 freq_range->start_freq_khz) ||
4073 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4074 freq_range->end_freq_khz) ||
4075 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4076 freq_range->max_bandwidth_khz) ||
4077 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4078 power_rule->max_antenna_gain) ||
4079 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4080 power_rule->max_eirp))
4081 goto nla_put_failure;
4083 nla_nest_end(msg, nl_reg_rule);
4086 nla_nest_end(msg, nl_reg_rules);
4088 genlmsg_end(msg, hdr);
4089 err = genlmsg_reply(msg, info);
4093 genlmsg_cancel(msg, hdr);
4098 mutex_unlock(&cfg80211_mutex);
4102 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4104 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4105 struct nlattr *nl_reg_rule;
4106 char *alpha2 = NULL;
4107 int rem_reg_rules = 0, r = 0;
4108 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4110 struct ieee80211_regdomain *rd = NULL;
4112 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4115 if (!info->attrs[NL80211_ATTR_REG_RULES])
4118 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4120 if (info->attrs[NL80211_ATTR_DFS_REGION])
4121 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4123 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4126 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4130 mutex_lock(&cfg80211_mutex);
4132 if (!reg_is_valid_request(alpha2)) {
4137 size_of_regd = sizeof(struct ieee80211_regdomain) +
4138 (num_rules * sizeof(struct ieee80211_reg_rule));
4140 rd = kzalloc(size_of_regd, GFP_KERNEL);
4146 rd->n_reg_rules = num_rules;
4147 rd->alpha2[0] = alpha2[0];
4148 rd->alpha2[1] = alpha2[1];
4151 * Disable DFS master mode if the DFS region was
4152 * not supported or known on this kernel.
4154 if (reg_supported_dfs_region(dfs_region))
4155 rd->dfs_region = dfs_region;
4157 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4159 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4160 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4162 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4168 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4174 BUG_ON(rule_idx != num_rules);
4178 mutex_unlock(&cfg80211_mutex);
4183 mutex_unlock(&cfg80211_mutex);
4188 static int validate_scan_freqs(struct nlattr *freqs)
4190 struct nlattr *attr1, *attr2;
4191 int n_channels = 0, tmp1, tmp2;
4193 nla_for_each_nested(attr1, freqs, tmp1) {
4196 * Some hardware has a limited channel list for
4197 * scanning, and it is pretty much nonsensical
4198 * to scan for a channel twice, so disallow that
4199 * and don't require drivers to check that the
4200 * channel list they get isn't longer than what
4201 * they can scan, as long as they can scan all
4202 * the channels they registered at once.
4204 nla_for_each_nested(attr2, freqs, tmp2)
4205 if (attr1 != attr2 &&
4206 nla_get_u32(attr1) == nla_get_u32(attr2))
4213 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4216 struct wireless_dev *wdev = info->user_ptr[1];
4217 struct cfg80211_scan_request *request;
4218 struct nlattr *attr;
4219 struct wiphy *wiphy;
4220 int err, tmp, n_ssids = 0, n_channels, i;
4223 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4226 wiphy = &rdev->wiphy;
4228 if (!rdev->ops->scan)
4234 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4235 n_channels = validate_scan_freqs(
4236 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4240 enum ieee80211_band band;
4243 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4244 if (wiphy->bands[band])
4245 n_channels += wiphy->bands[band]->n_channels;
4248 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4249 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4252 if (n_ssids > wiphy->max_scan_ssids)
4255 if (info->attrs[NL80211_ATTR_IE])
4256 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4260 if (ie_len > wiphy->max_scan_ie_len)
4263 request = kzalloc(sizeof(*request)
4264 + sizeof(*request->ssids) * n_ssids
4265 + sizeof(*request->channels) * n_channels
4266 + ie_len, GFP_KERNEL);
4271 request->ssids = (void *)&request->channels[n_channels];
4272 request->n_ssids = n_ssids;
4275 request->ie = (void *)(request->ssids + n_ssids);
4277 request->ie = (void *)(request->channels + n_channels);
4281 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4282 /* user specified, bail out if channel not found */
4283 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4284 struct ieee80211_channel *chan;
4286 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4293 /* ignore disabled channels */
4294 if (chan->flags & IEEE80211_CHAN_DISABLED)
4297 request->channels[i] = chan;
4301 enum ieee80211_band band;
4304 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4306 if (!wiphy->bands[band])
4308 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4309 struct ieee80211_channel *chan;
4311 chan = &wiphy->bands[band]->channels[j];
4313 if (chan->flags & IEEE80211_CHAN_DISABLED)
4316 request->channels[i] = chan;
4327 request->n_channels = i;
4330 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4331 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4332 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4336 request->ssids[i].ssid_len = nla_len(attr);
4337 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4342 if (info->attrs[NL80211_ATTR_IE]) {
4343 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4344 memcpy((void *)request->ie,
4345 nla_data(info->attrs[NL80211_ATTR_IE]),
4349 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4350 if (wiphy->bands[i])
4352 (1 << wiphy->bands[i]->n_bitrates) - 1;
4354 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4355 nla_for_each_nested(attr,
4356 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4358 enum ieee80211_band band = nla_type(attr);
4360 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4364 err = ieee80211_get_ratemask(wiphy->bands[band],
4367 &request->rates[band]);
4373 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4374 request->flags = nla_get_u32(
4375 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4376 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4377 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4378 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4379 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4386 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4388 request->wdev = wdev;
4389 request->wiphy = &rdev->wiphy;
4390 request->scan_start = jiffies;
4392 rdev->scan_req = request;
4393 err = rdev_scan(rdev, request);
4396 nl80211_send_scan_start(rdev, wdev);
4398 dev_hold(wdev->netdev);
4401 rdev->scan_req = NULL;
4408 static int nl80211_start_sched_scan(struct sk_buff *skb,
4409 struct genl_info *info)
4411 struct cfg80211_sched_scan_request *request;
4412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4413 struct net_device *dev = info->user_ptr[1];
4414 struct nlattr *attr;
4415 struct wiphy *wiphy;
4416 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4418 enum ieee80211_band band;
4420 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4422 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4423 !rdev->ops->sched_scan_start)
4426 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4429 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4432 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4436 wiphy = &rdev->wiphy;
4438 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4439 n_channels = validate_scan_freqs(
4440 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4446 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4447 if (wiphy->bands[band])
4448 n_channels += wiphy->bands[band]->n_channels;
4451 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4452 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4456 if (n_ssids > wiphy->max_sched_scan_ssids)
4459 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4460 nla_for_each_nested(attr,
4461 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4465 if (n_match_sets > wiphy->max_match_sets)
4468 if (info->attrs[NL80211_ATTR_IE])
4469 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4473 if (ie_len > wiphy->max_sched_scan_ie_len)
4476 mutex_lock(&rdev->sched_scan_mtx);
4478 if (rdev->sched_scan_req) {
4483 request = kzalloc(sizeof(*request)
4484 + sizeof(*request->ssids) * n_ssids
4485 + sizeof(*request->match_sets) * n_match_sets
4486 + sizeof(*request->channels) * n_channels
4487 + ie_len, GFP_KERNEL);
4494 request->ssids = (void *)&request->channels[n_channels];
4495 request->n_ssids = n_ssids;
4498 request->ie = (void *)(request->ssids + n_ssids);
4500 request->ie = (void *)(request->channels + n_channels);
4505 request->match_sets = (void *)(request->ie + ie_len);
4506 else if (request->ssids)
4507 request->match_sets =
4508 (void *)(request->ssids + n_ssids);
4510 request->match_sets =
4511 (void *)(request->channels + n_channels);
4513 request->n_match_sets = n_match_sets;
4516 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4517 /* user specified, bail out if channel not found */
4518 nla_for_each_nested(attr,
4519 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4521 struct ieee80211_channel *chan;
4523 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4530 /* ignore disabled channels */
4531 if (chan->flags & IEEE80211_CHAN_DISABLED)
4534 request->channels[i] = chan;
4539 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4541 if (!wiphy->bands[band])
4543 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4544 struct ieee80211_channel *chan;
4546 chan = &wiphy->bands[band]->channels[j];
4548 if (chan->flags & IEEE80211_CHAN_DISABLED)
4551 request->channels[i] = chan;
4562 request->n_channels = i;
4565 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4566 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4568 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4572 request->ssids[i].ssid_len = nla_len(attr);
4573 memcpy(request->ssids[i].ssid, nla_data(attr),
4580 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4581 nla_for_each_nested(attr,
4582 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4584 struct nlattr *ssid, *rssi;
4586 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4587 nla_data(attr), nla_len(attr),
4588 nl80211_match_policy);
4589 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4591 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4595 memcpy(request->match_sets[i].ssid.ssid,
4596 nla_data(ssid), nla_len(ssid));
4597 request->match_sets[i].ssid.ssid_len =
4600 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4602 request->rssi_thold = nla_get_u32(rssi);
4604 request->rssi_thold =
4605 NL80211_SCAN_RSSI_THOLD_OFF;
4610 if (info->attrs[NL80211_ATTR_IE]) {
4611 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4612 memcpy((void *)request->ie,
4613 nla_data(info->attrs[NL80211_ATTR_IE]),
4617 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4618 request->flags = nla_get_u32(
4619 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4620 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4621 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4622 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4623 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4630 request->wiphy = &rdev->wiphy;
4631 request->interval = interval;
4632 request->scan_start = jiffies;
4634 err = rdev_sched_scan_start(rdev, dev, request);
4636 rdev->sched_scan_req = request;
4637 nl80211_send_sched_scan(rdev, dev,
4638 NL80211_CMD_START_SCHED_SCAN);
4645 mutex_unlock(&rdev->sched_scan_mtx);
4649 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4650 struct genl_info *info)
4652 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4655 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4656 !rdev->ops->sched_scan_stop)
4659 mutex_lock(&rdev->sched_scan_mtx);
4660 err = __cfg80211_stop_sched_scan(rdev, false);
4661 mutex_unlock(&rdev->sched_scan_mtx);
4666 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4668 struct cfg80211_registered_device *rdev,
4669 struct wireless_dev *wdev,
4670 struct cfg80211_internal_bss *intbss)
4672 struct cfg80211_bss *res = &intbss->pub;
4676 ASSERT_WDEV_LOCK(wdev);
4678 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
4679 NL80211_CMD_NEW_SCAN_RESULTS);
4683 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
4685 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
4686 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
4687 goto nla_put_failure;
4689 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
4691 goto nla_put_failure;
4692 if ((!is_zero_ether_addr(res->bssid) &&
4693 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)) ||
4694 (res->information_elements && res->len_information_elements &&
4695 nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
4696 res->len_information_elements,
4697 res->information_elements)) ||
4698 (res->beacon_ies && res->len_beacon_ies &&
4699 res->beacon_ies != res->information_elements &&
4700 nla_put(msg, NL80211_BSS_BEACON_IES,
4701 res->len_beacon_ies, res->beacon_ies)))
4702 goto nla_put_failure;
4704 nla_put_u64(msg, NL80211_BSS_TSF, res->tsf))
4705 goto nla_put_failure;
4706 if (res->beacon_interval &&
4707 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
4708 goto nla_put_failure;
4709 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
4710 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
4711 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
4712 jiffies_to_msecs(jiffies - intbss->ts)))
4713 goto nla_put_failure;
4715 switch (rdev->wiphy.signal_type) {
4716 case CFG80211_SIGNAL_TYPE_MBM:
4717 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
4718 goto nla_put_failure;
4720 case CFG80211_SIGNAL_TYPE_UNSPEC:
4721 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
4722 goto nla_put_failure;
4728 switch (wdev->iftype) {
4729 case NL80211_IFTYPE_P2P_CLIENT:
4730 case NL80211_IFTYPE_STATION:
4731 if (intbss == wdev->current_bss &&
4732 nla_put_u32(msg, NL80211_BSS_STATUS,
4733 NL80211_BSS_STATUS_ASSOCIATED))
4734 goto nla_put_failure;
4736 case NL80211_IFTYPE_ADHOC:
4737 if (intbss == wdev->current_bss &&
4738 nla_put_u32(msg, NL80211_BSS_STATUS,
4739 NL80211_BSS_STATUS_IBSS_JOINED))
4740 goto nla_put_failure;
4746 nla_nest_end(msg, bss);
4748 return genlmsg_end(msg, hdr);
4751 genlmsg_cancel(msg, hdr);
4755 static int nl80211_dump_scan(struct sk_buff *skb,
4756 struct netlink_callback *cb)
4758 struct cfg80211_registered_device *rdev;
4759 struct net_device *dev;
4760 struct cfg80211_internal_bss *scan;
4761 struct wireless_dev *wdev;
4762 int start = cb->args[1], idx = 0;
4765 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
4769 wdev = dev->ieee80211_ptr;
4772 spin_lock_bh(&rdev->bss_lock);
4773 cfg80211_bss_expire(rdev);
4775 cb->seq = rdev->bss_generation;
4777 list_for_each_entry(scan, &rdev->bss_list, list) {
4780 if (nl80211_send_bss(skb, cb,
4781 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4782 rdev, wdev, scan) < 0) {
4788 spin_unlock_bh(&rdev->bss_lock);
4792 nl80211_finish_netdev_dump(rdev);
4797 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
4798 int flags, struct net_device *dev,
4799 struct survey_info *survey)
4802 struct nlattr *infoattr;
4804 hdr = nl80211hdr_put(msg, portid, seq, flags,
4805 NL80211_CMD_NEW_SURVEY_RESULTS);
4809 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
4810 goto nla_put_failure;
4812 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
4814 goto nla_put_failure;
4816 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
4817 survey->channel->center_freq))
4818 goto nla_put_failure;
4820 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
4821 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
4822 goto nla_put_failure;
4823 if ((survey->filled & SURVEY_INFO_IN_USE) &&
4824 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
4825 goto nla_put_failure;
4826 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
4827 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
4828 survey->channel_time))
4829 goto nla_put_failure;
4830 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
4831 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
4832 survey->channel_time_busy))
4833 goto nla_put_failure;
4834 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
4835 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
4836 survey->channel_time_ext_busy))
4837 goto nla_put_failure;
4838 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
4839 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
4840 survey->channel_time_rx))
4841 goto nla_put_failure;
4842 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
4843 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
4844 survey->channel_time_tx))
4845 goto nla_put_failure;
4847 nla_nest_end(msg, infoattr);
4849 return genlmsg_end(msg, hdr);
4852 genlmsg_cancel(msg, hdr);
4856 static int nl80211_dump_survey(struct sk_buff *skb,
4857 struct netlink_callback *cb)
4859 struct survey_info survey;
4860 struct cfg80211_registered_device *dev;
4861 struct net_device *netdev;
4862 int survey_idx = cb->args[1];
4865 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
4869 if (!dev->ops->dump_survey) {
4875 struct ieee80211_channel *chan;
4877 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
4883 /* Survey without a channel doesn't make sense */
4884 if (!survey.channel) {
4889 chan = ieee80211_get_channel(&dev->wiphy,
4890 survey.channel->center_freq);
4891 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
4896 if (nl80211_send_survey(skb,
4897 NETLINK_CB(cb->skb).portid,
4898 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4906 cb->args[1] = survey_idx;
4909 nl80211_finish_netdev_dump(dev);
4913 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
4915 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
4916 NL80211_WPA_VERSION_2));
4919 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
4921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4922 struct net_device *dev = info->user_ptr[1];
4923 struct ieee80211_channel *chan;
4924 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
4925 int err, ssid_len, ie_len = 0, sae_data_len = 0;
4926 enum nl80211_auth_type auth_type;
4927 struct key_parse key;
4928 bool local_state_change;
4930 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4933 if (!info->attrs[NL80211_ATTR_MAC])
4936 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
4939 if (!info->attrs[NL80211_ATTR_SSID])
4942 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
4945 err = nl80211_parse_key(info, &key);
4950 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
4952 if (!key.p.key || !key.p.key_len)
4954 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
4955 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
4956 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
4957 key.p.key_len != WLAN_KEY_LEN_WEP104))
4969 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
4970 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
4979 if (!rdev->ops->auth)
4982 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
4983 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
4986 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
4987 chan = ieee80211_get_channel(&rdev->wiphy,
4988 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
4989 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
4992 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
4993 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
4995 if (info->attrs[NL80211_ATTR_IE]) {
4996 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
4997 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5000 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5001 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5004 if (auth_type == NL80211_AUTHTYPE_SAE &&
5005 !info->attrs[NL80211_ATTR_SAE_DATA])
5008 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5009 if (auth_type != NL80211_AUTHTYPE_SAE)
5011 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5012 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5013 /* need to include at least Auth Transaction and Status Code */
5014 if (sae_data_len < 4)
5018 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5021 * Since we no longer track auth state, ignore
5022 * requests to only change local state.
5024 if (local_state_change)
5027 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5028 ssid, ssid_len, ie, ie_len,
5029 key.p.key, key.p.key_len, key.idx,
5030 sae_data, sae_data_len);
5033 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5034 struct genl_info *info,
5035 struct cfg80211_crypto_settings *settings,
5038 memset(settings, 0, sizeof(*settings));
5040 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5042 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5044 proto = nla_get_u16(
5045 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5046 settings->control_port_ethertype = cpu_to_be16(proto);
5047 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5050 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5051 settings->control_port_no_encrypt = true;
5053 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5055 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5059 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5060 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5061 settings->n_ciphers_pairwise = len / sizeof(u32);
5063 if (len % sizeof(u32))
5066 if (settings->n_ciphers_pairwise > cipher_limit)
5069 memcpy(settings->ciphers_pairwise, data, len);
5071 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5072 if (!cfg80211_supported_cipher_suite(
5074 settings->ciphers_pairwise[i]))
5078 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5079 settings->cipher_group =
5080 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5081 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5082 settings->cipher_group))
5086 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5087 settings->wpa_versions =
5088 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5089 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5093 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5097 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5098 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5099 settings->n_akm_suites = len / sizeof(u32);
5101 if (len % sizeof(u32))
5104 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5107 memcpy(settings->akm_suites, data, len);
5113 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5115 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5116 struct net_device *dev = info->user_ptr[1];
5117 struct cfg80211_crypto_settings crypto;
5118 struct ieee80211_channel *chan;
5119 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5120 int err, ssid_len, ie_len = 0;
5121 bool use_mfp = false;
5123 struct ieee80211_ht_cap *ht_capa = NULL;
5124 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5126 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5129 if (!info->attrs[NL80211_ATTR_MAC] ||
5130 !info->attrs[NL80211_ATTR_SSID] ||
5131 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5134 if (!rdev->ops->assoc)
5137 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5138 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5141 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5143 chan = ieee80211_get_channel(&rdev->wiphy,
5144 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5145 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5148 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5149 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5151 if (info->attrs[NL80211_ATTR_IE]) {
5152 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5153 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5156 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5157 enum nl80211_mfp mfp =
5158 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5159 if (mfp == NL80211_MFP_REQUIRED)
5161 else if (mfp != NL80211_MFP_NO)
5165 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5166 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5168 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5169 flags |= ASSOC_REQ_DISABLE_HT;
5171 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5173 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5175 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5178 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5181 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5183 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5184 ssid, ssid_len, ie, ie_len, use_mfp,
5185 &crypto, flags, ht_capa,
5191 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5194 struct net_device *dev = info->user_ptr[1];
5195 const u8 *ie = NULL, *bssid;
5198 bool local_state_change;
5200 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5203 if (!info->attrs[NL80211_ATTR_MAC])
5206 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5209 if (!rdev->ops->deauth)
5212 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5213 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5216 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5218 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5219 if (reason_code == 0) {
5220 /* Reason Code 0 is reserved */
5224 if (info->attrs[NL80211_ATTR_IE]) {
5225 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5226 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5229 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5231 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5232 local_state_change);
5235 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5237 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5238 struct net_device *dev = info->user_ptr[1];
5239 const u8 *ie = NULL, *bssid;
5242 bool local_state_change;
5244 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5247 if (!info->attrs[NL80211_ATTR_MAC])
5250 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5253 if (!rdev->ops->disassoc)
5256 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5257 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5260 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5262 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5263 if (reason_code == 0) {
5264 /* Reason Code 0 is reserved */
5268 if (info->attrs[NL80211_ATTR_IE]) {
5269 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5270 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5273 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5275 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5276 local_state_change);
5280 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5281 int mcast_rate[IEEE80211_NUM_BANDS],
5284 struct wiphy *wiphy = &rdev->wiphy;
5288 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5289 struct ieee80211_supported_band *sband;
5291 sband = wiphy->bands[band];
5295 for (i = 0; i < sband->n_bitrates; i++) {
5296 if (sband->bitrates[i].bitrate == rateval) {
5297 mcast_rate[band] = i + 1;
5307 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5310 struct net_device *dev = info->user_ptr[1];
5311 struct cfg80211_ibss_params ibss;
5312 struct wiphy *wiphy;
5313 struct cfg80211_cached_keys *connkeys = NULL;
5316 memset(&ibss, 0, sizeof(ibss));
5318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5321 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5322 !info->attrs[NL80211_ATTR_SSID] ||
5323 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5326 ibss.beacon_interval = 100;
5328 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5329 ibss.beacon_interval =
5330 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5331 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5335 if (!rdev->ops->join_ibss)
5338 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5341 wiphy = &rdev->wiphy;
5343 if (info->attrs[NL80211_ATTR_MAC]) {
5344 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5346 if (!is_valid_ether_addr(ibss.bssid))
5349 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5350 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5352 if (info->attrs[NL80211_ATTR_IE]) {
5353 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5354 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5357 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
5358 enum nl80211_channel_type channel_type;
5360 if (!nl80211_valid_channel_type(info, &channel_type))
5363 if (channel_type != NL80211_CHAN_NO_HT &&
5364 !(wiphy->features & NL80211_FEATURE_HT_IBSS))
5367 ibss.channel_type = channel_type;
5369 ibss.channel_type = NL80211_CHAN_NO_HT;
5372 ibss.channel = rdev_freq_to_chan(rdev,
5373 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
5375 if (!ibss.channel ||
5376 ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
5377 ibss.channel->flags & IEEE80211_CHAN_DISABLED)
5380 /* Both channels should be able to initiate communication */
5381 if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
5382 ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
5383 !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
5387 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5388 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5390 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5392 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5394 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5395 struct ieee80211_supported_band *sband =
5396 wiphy->bands[ibss.channel->band];
5398 err = ieee80211_get_ratemask(sband, rates, n_rates,
5404 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5405 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5406 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5409 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5412 connkeys = nl80211_parse_connkeys(rdev,
5413 info->attrs[NL80211_ATTR_KEYS],
5415 if (IS_ERR(connkeys))
5416 return PTR_ERR(connkeys);
5418 if ((ibss.channel_type != NL80211_CHAN_NO_HT) && no_ht) {
5425 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5427 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5433 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5435 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5436 struct net_device *dev = info->user_ptr[1];
5438 if (!rdev->ops->leave_ibss)
5441 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5444 return cfg80211_leave_ibss(rdev, dev, false);
5447 #ifdef CONFIG_NL80211_TESTMODE
5448 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5452 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5454 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5457 if (!info->attrs[NL80211_ATTR_TESTDATA])
5461 if (rdev->ops->testmode_cmd) {
5462 rdev->testmode_info = info;
5463 err = rdev_testmode_cmd(rdev,
5464 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5465 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5466 rdev->testmode_info = NULL;
5472 static int nl80211_testmode_dump(struct sk_buff *skb,
5473 struct netlink_callback *cb)
5475 struct cfg80211_registered_device *rdev;
5483 * 0 is a valid index, but not valid for args[0],
5484 * so we need to offset by 1.
5486 phy_idx = cb->args[0] - 1;
5488 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5489 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5494 mutex_lock(&cfg80211_mutex);
5495 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5496 nl80211_fam.attrbuf);
5498 mutex_unlock(&cfg80211_mutex);
5499 return PTR_ERR(rdev);
5501 phy_idx = rdev->wiphy_idx;
5503 mutex_unlock(&cfg80211_mutex);
5505 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5507 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5511 data = nla_data((void *)cb->args[1]);
5512 data_len = nla_len((void *)cb->args[1]);
5515 mutex_lock(&cfg80211_mutex);
5516 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5518 mutex_unlock(&cfg80211_mutex);
5521 cfg80211_lock_rdev(rdev);
5522 mutex_unlock(&cfg80211_mutex);
5524 if (!rdev->ops->testmode_dump) {
5530 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
5531 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5532 NL80211_CMD_TESTMODE);
5533 struct nlattr *tmdata;
5535 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5536 genlmsg_cancel(skb, hdr);
5540 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5542 genlmsg_cancel(skb, hdr);
5545 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
5546 nla_nest_end(skb, tmdata);
5548 if (err == -ENOBUFS || err == -ENOENT) {
5549 genlmsg_cancel(skb, hdr);
5552 genlmsg_cancel(skb, hdr);
5556 genlmsg_end(skb, hdr);
5561 cb->args[0] = phy_idx + 1;
5563 cfg80211_unlock_rdev(rdev);
5567 static struct sk_buff *
5568 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5569 int approxlen, u32 portid, u32 seq, gfp_t gfp)
5571 struct sk_buff *skb;
5573 struct nlattr *data;
5575 skb = nlmsg_new(approxlen + 100, gfp);
5579 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
5585 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5586 goto nla_put_failure;
5587 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5589 ((void **)skb->cb)[0] = rdev;
5590 ((void **)skb->cb)[1] = hdr;
5591 ((void **)skb->cb)[2] = data;
5600 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5603 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5605 if (WARN_ON(!rdev->testmode_info))
5608 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5609 rdev->testmode_info->snd_portid,
5610 rdev->testmode_info->snd_seq,
5613 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5615 int cfg80211_testmode_reply(struct sk_buff *skb)
5617 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5618 void *hdr = ((void **)skb->cb)[1];
5619 struct nlattr *data = ((void **)skb->cb)[2];
5621 if (WARN_ON(!rdev->testmode_info)) {
5626 nla_nest_end(skb, data);
5627 genlmsg_end(skb, hdr);
5628 return genlmsg_reply(skb, rdev->testmode_info);
5630 EXPORT_SYMBOL(cfg80211_testmode_reply);
5632 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5633 int approxlen, gfp_t gfp)
5635 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5637 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5639 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5641 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5643 void *hdr = ((void **)skb->cb)[1];
5644 struct nlattr *data = ((void **)skb->cb)[2];
5646 nla_nest_end(skb, data);
5647 genlmsg_end(skb, hdr);
5648 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
5650 EXPORT_SYMBOL(cfg80211_testmode_event);
5653 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
5655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5656 struct net_device *dev = info->user_ptr[1];
5657 struct cfg80211_connect_params connect;
5658 struct wiphy *wiphy;
5659 struct cfg80211_cached_keys *connkeys = NULL;
5662 memset(&connect, 0, sizeof(connect));
5664 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5667 if (!info->attrs[NL80211_ATTR_SSID] ||
5668 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5671 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
5673 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5674 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
5675 NL80211_CMD_CONNECT))
5678 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
5680 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
5682 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
5683 NL80211_MAX_NR_CIPHER_SUITES);
5687 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5688 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5691 wiphy = &rdev->wiphy;
5693 connect.bg_scan_period = -1;
5694 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
5695 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
5696 connect.bg_scan_period =
5697 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
5700 if (info->attrs[NL80211_ATTR_MAC])
5701 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5702 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5703 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5705 if (info->attrs[NL80211_ATTR_IE]) {
5706 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5707 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5710 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
5712 ieee80211_get_channel(wiphy,
5713 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5714 if (!connect.channel ||
5715 connect.channel->flags & IEEE80211_CHAN_DISABLED)
5719 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5720 connkeys = nl80211_parse_connkeys(rdev,
5721 info->attrs[NL80211_ATTR_KEYS], NULL);
5722 if (IS_ERR(connkeys))
5723 return PTR_ERR(connkeys);
5726 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5727 connect.flags |= ASSOC_REQ_DISABLE_HT;
5729 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5730 memcpy(&connect.ht_capa_mask,
5731 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
5732 sizeof(connect.ht_capa_mask));
5734 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5735 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
5739 memcpy(&connect.ht_capa,
5740 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
5741 sizeof(connect.ht_capa));
5744 err = cfg80211_connect(rdev, dev, &connect, connkeys);
5750 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
5752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5753 struct net_device *dev = info->user_ptr[1];
5756 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5757 reason = WLAN_REASON_DEAUTH_LEAVING;
5759 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5764 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5765 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5768 return cfg80211_disconnect(rdev, dev, reason, true);
5771 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
5773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5778 if (!info->attrs[NL80211_ATTR_PID])
5781 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
5783 net = get_net_ns_by_pid(pid);
5785 return PTR_ERR(net);
5789 /* check if anything to do */
5790 if (!net_eq(wiphy_net(&rdev->wiphy), net))
5791 err = cfg80211_switch_netns(rdev, net);
5797 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
5799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5800 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
5801 struct cfg80211_pmksa *pmksa) = NULL;
5802 struct net_device *dev = info->user_ptr[1];
5803 struct cfg80211_pmksa pmksa;
5805 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
5807 if (!info->attrs[NL80211_ATTR_MAC])
5810 if (!info->attrs[NL80211_ATTR_PMKID])
5813 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
5814 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5816 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5817 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5820 switch (info->genlhdr->cmd) {
5821 case NL80211_CMD_SET_PMKSA:
5822 rdev_ops = rdev->ops->set_pmksa;
5824 case NL80211_CMD_DEL_PMKSA:
5825 rdev_ops = rdev->ops->del_pmksa;
5835 return rdev_ops(&rdev->wiphy, dev, &pmksa);
5838 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
5840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5841 struct net_device *dev = info->user_ptr[1];
5843 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5844 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5847 if (!rdev->ops->flush_pmksa)
5850 return rdev_flush_pmksa(rdev, dev);
5853 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
5855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5856 struct net_device *dev = info->user_ptr[1];
5857 u8 action_code, dialog_token;
5861 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5862 !rdev->ops->tdls_mgmt)
5865 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
5866 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
5867 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
5868 !info->attrs[NL80211_ATTR_IE] ||
5869 !info->attrs[NL80211_ATTR_MAC])
5872 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5873 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
5874 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
5875 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
5877 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
5878 dialog_token, status_code,
5879 nla_data(info->attrs[NL80211_ATTR_IE]),
5880 nla_len(info->attrs[NL80211_ATTR_IE]));
5883 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
5885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5886 struct net_device *dev = info->user_ptr[1];
5887 enum nl80211_tdls_operation operation;
5890 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
5891 !rdev->ops->tdls_oper)
5894 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
5895 !info->attrs[NL80211_ATTR_MAC])
5898 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
5899 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
5901 return rdev_tdls_oper(rdev, dev, peer, operation);
5904 static int nl80211_remain_on_channel(struct sk_buff *skb,
5905 struct genl_info *info)
5907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5908 struct wireless_dev *wdev = info->user_ptr[1];
5909 struct ieee80211_channel *chan;
5910 struct sk_buff *msg;
5913 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
5917 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5918 !info->attrs[NL80211_ATTR_DURATION])
5921 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
5923 if (!rdev->ops->remain_on_channel ||
5924 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
5928 * We should be on that channel for at least a minimum amount of
5929 * time (10ms) but no longer than the driver supports.
5931 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
5932 duration > rdev->wiphy.max_remain_on_channel_duration)
5935 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
5936 !nl80211_valid_channel_type(info, &channel_type))
5939 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
5940 chan = rdev_freq_to_chan(rdev, freq, channel_type);
5944 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5948 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5949 NL80211_CMD_REMAIN_ON_CHANNEL);
5956 err = rdev_remain_on_channel(rdev, wdev, chan, channel_type, duration,
5962 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
5963 goto nla_put_failure;
5965 genlmsg_end(msg, hdr);
5967 return genlmsg_reply(msg, info);
5976 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
5977 struct genl_info *info)
5979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5980 struct wireless_dev *wdev = info->user_ptr[1];
5983 if (!info->attrs[NL80211_ATTR_COOKIE])
5986 if (!rdev->ops->cancel_remain_on_channel)
5989 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
5991 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
5994 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
5995 u8 *rates, u8 rates_len)
6000 for (i = 0; i < rates_len; i++) {
6001 int rate = (rates[i] & 0x7f) * 5;
6003 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6004 struct ieee80211_rate *srate =
6005 &sband->bitrates[ridx];
6006 if (rate == srate->bitrate) {
6011 if (ridx == sband->n_bitrates)
6012 return 0; /* rate not found */
6018 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6019 u8 *rates, u8 rates_len,
6020 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6024 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6026 for (i = 0; i < rates_len; i++) {
6029 ridx = rates[i] / 8;
6030 rbit = BIT(rates[i] % 8);
6032 /* check validity */
6033 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6036 /* check availability */
6037 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6046 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6047 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6048 .len = NL80211_MAX_SUPP_RATES },
6049 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6050 .len = NL80211_MAX_SUPP_HT_RATES },
6053 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6054 struct genl_info *info)
6056 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6057 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6058 struct cfg80211_bitrate_mask mask;
6060 struct net_device *dev = info->user_ptr[1];
6061 struct nlattr *tx_rates;
6062 struct ieee80211_supported_band *sband;
6064 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6067 if (!rdev->ops->set_bitrate_mask)
6070 memset(&mask, 0, sizeof(mask));
6071 /* Default to all rates enabled */
6072 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6073 sband = rdev->wiphy.bands[i];
6074 mask.control[i].legacy =
6075 sband ? (1 << sband->n_bitrates) - 1 : 0;
6077 memcpy(mask.control[i].mcs,
6078 sband->ht_cap.mcs.rx_mask,
6079 sizeof(mask.control[i].mcs));
6081 memset(mask.control[i].mcs, 0,
6082 sizeof(mask.control[i].mcs));
6086 * The nested attribute uses enum nl80211_band as the index. This maps
6087 * directly to the enum ieee80211_band values used in cfg80211.
6089 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6090 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6092 enum ieee80211_band band = nla_type(tx_rates);
6093 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6095 sband = rdev->wiphy.bands[band];
6098 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6099 nla_len(tx_rates), nl80211_txattr_policy);
6100 if (tb[NL80211_TXRATE_LEGACY]) {
6101 mask.control[band].legacy = rateset_to_mask(
6103 nla_data(tb[NL80211_TXRATE_LEGACY]),
6104 nla_len(tb[NL80211_TXRATE_LEGACY]));
6105 if ((mask.control[band].legacy == 0) &&
6106 nla_len(tb[NL80211_TXRATE_LEGACY]))
6109 if (tb[NL80211_TXRATE_MCS]) {
6110 if (!ht_rateset_to_mask(
6112 nla_data(tb[NL80211_TXRATE_MCS]),
6113 nla_len(tb[NL80211_TXRATE_MCS]),
6114 mask.control[band].mcs))
6118 if (mask.control[band].legacy == 0) {
6119 /* don't allow empty legacy rates if HT
6120 * is not even supported. */
6121 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6124 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6125 if (mask.control[band].mcs[i])
6128 /* legacy and mcs rates may not be both empty */
6129 if (i == IEEE80211_HT_MCS_MASK_LEN)
6134 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6137 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6140 struct wireless_dev *wdev = info->user_ptr[1];
6141 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6143 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6146 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6147 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6149 switch (wdev->iftype) {
6150 case NL80211_IFTYPE_STATION:
6151 case NL80211_IFTYPE_ADHOC:
6152 case NL80211_IFTYPE_P2P_CLIENT:
6153 case NL80211_IFTYPE_AP:
6154 case NL80211_IFTYPE_AP_VLAN:
6155 case NL80211_IFTYPE_MESH_POINT:
6156 case NL80211_IFTYPE_P2P_GO:
6157 case NL80211_IFTYPE_P2P_DEVICE:
6163 /* not much point in registering if we can't reply */
6164 if (!rdev->ops->mgmt_tx)
6167 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6168 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6169 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6172 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6175 struct wireless_dev *wdev = info->user_ptr[1];
6176 struct ieee80211_channel *chan;
6177 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6178 bool channel_type_valid = false;
6183 struct sk_buff *msg = NULL;
6184 unsigned int wait = 0;
6185 bool offchan, no_cck, dont_wait_for_ack;
6187 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6189 if (!info->attrs[NL80211_ATTR_FRAME] ||
6190 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6193 if (!rdev->ops->mgmt_tx)
6196 switch (wdev->iftype) {
6197 case NL80211_IFTYPE_STATION:
6198 case NL80211_IFTYPE_ADHOC:
6199 case NL80211_IFTYPE_P2P_CLIENT:
6200 case NL80211_IFTYPE_AP:
6201 case NL80211_IFTYPE_AP_VLAN:
6202 case NL80211_IFTYPE_MESH_POINT:
6203 case NL80211_IFTYPE_P2P_GO:
6204 case NL80211_IFTYPE_P2P_DEVICE:
6210 if (info->attrs[NL80211_ATTR_DURATION]) {
6211 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6213 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6216 * We should wait on the channel for at least a minimum amount
6217 * of time (10ms) but no longer than the driver supports.
6219 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6220 wait > rdev->wiphy.max_remain_on_channel_duration)
6225 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
6226 if (!nl80211_valid_channel_type(info, &channel_type))
6228 channel_type_valid = true;
6231 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6233 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6236 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6238 freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6239 chan = rdev_freq_to_chan(rdev, freq, channel_type);
6243 if (!dont_wait_for_ack) {
6244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6248 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6257 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chan, offchan, channel_type,
6258 channel_type_valid, wait,
6259 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6260 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6261 no_cck, dont_wait_for_ack, &cookie);
6266 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6267 goto nla_put_failure;
6269 genlmsg_end(msg, hdr);
6270 return genlmsg_reply(msg, info);
6282 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6284 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6285 struct wireless_dev *wdev = info->user_ptr[1];
6288 if (!info->attrs[NL80211_ATTR_COOKIE])
6291 if (!rdev->ops->mgmt_tx_cancel_wait)
6294 switch (wdev->iftype) {
6295 case NL80211_IFTYPE_STATION:
6296 case NL80211_IFTYPE_ADHOC:
6297 case NL80211_IFTYPE_P2P_CLIENT:
6298 case NL80211_IFTYPE_AP:
6299 case NL80211_IFTYPE_AP_VLAN:
6300 case NL80211_IFTYPE_P2P_GO:
6301 case NL80211_IFTYPE_P2P_DEVICE:
6307 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6309 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6312 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6314 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6315 struct wireless_dev *wdev;
6316 struct net_device *dev = info->user_ptr[1];
6321 if (!info->attrs[NL80211_ATTR_PS_STATE])
6324 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6326 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6329 wdev = dev->ieee80211_ptr;
6331 if (!rdev->ops->set_power_mgmt)
6334 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6336 if (state == wdev->ps)
6339 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6345 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6348 enum nl80211_ps_state ps_state;
6349 struct wireless_dev *wdev;
6350 struct net_device *dev = info->user_ptr[1];
6351 struct sk_buff *msg;
6355 wdev = dev->ieee80211_ptr;
6357 if (!rdev->ops->set_power_mgmt)
6360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6364 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6365 NL80211_CMD_GET_POWER_SAVE);
6372 ps_state = NL80211_PS_ENABLED;
6374 ps_state = NL80211_PS_DISABLED;
6376 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6377 goto nla_put_failure;
6379 genlmsg_end(msg, hdr);
6380 return genlmsg_reply(msg, info);
6389 static struct nla_policy
6390 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6391 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6392 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6393 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6394 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6395 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6396 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6399 static int nl80211_set_cqm_txe(struct genl_info *info,
6400 u32 rate, u32 pkts, u32 intvl)
6402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6403 struct wireless_dev *wdev;
6404 struct net_device *dev = info->user_ptr[1];
6406 if ((rate < 0 || rate > 100) ||
6407 (intvl < 0 || intvl > NL80211_CQM_TXE_MAX_INTVL))
6410 wdev = dev->ieee80211_ptr;
6412 if (!rdev->ops->set_cqm_txe_config)
6415 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6416 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6419 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6422 static int nl80211_set_cqm_rssi(struct genl_info *info,
6423 s32 threshold, u32 hysteresis)
6425 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6426 struct wireless_dev *wdev;
6427 struct net_device *dev = info->user_ptr[1];
6432 wdev = dev->ieee80211_ptr;
6434 if (!rdev->ops->set_cqm_rssi_config)
6437 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6438 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6441 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6444 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6446 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6450 cqm = info->attrs[NL80211_ATTR_CQM];
6456 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6457 nl80211_attr_cqm_policy);
6461 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6462 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6465 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6466 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6467 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6468 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6469 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6470 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6471 u32 rate, pkts, intvl;
6472 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6473 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6474 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6475 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6483 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6486 struct net_device *dev = info->user_ptr[1];
6487 struct mesh_config cfg;
6488 struct mesh_setup setup;
6491 /* start with default */
6492 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6493 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6495 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6496 /* and parse parameters if given */
6497 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6502 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6503 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6506 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6507 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6509 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6510 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6511 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6514 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6515 /* parse additional setup parameters if given */
6516 err = nl80211_parse_mesh_setup(info, &setup);
6521 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6522 enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
6524 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] &&
6525 !nl80211_valid_channel_type(info, &channel_type))
6528 setup.channel = rdev_freq_to_chan(rdev,
6529 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
6533 setup.channel_type = channel_type;
6535 /* cfg80211_join_mesh() will sort it out */
6536 setup.channel = NULL;
6539 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6542 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6545 struct net_device *dev = info->user_ptr[1];
6547 return cfg80211_leave_mesh(rdev, dev);
6551 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6553 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6554 struct sk_buff *msg;
6557 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6564 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6565 NL80211_CMD_GET_WOWLAN);
6567 goto nla_put_failure;
6570 struct nlattr *nl_wowlan;
6572 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6574 goto nla_put_failure;
6576 if ((rdev->wowlan->any &&
6577 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6578 (rdev->wowlan->disconnect &&
6579 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6580 (rdev->wowlan->magic_pkt &&
6581 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6582 (rdev->wowlan->gtk_rekey_failure &&
6583 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6584 (rdev->wowlan->eap_identity_req &&
6585 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6586 (rdev->wowlan->four_way_handshake &&
6587 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6588 (rdev->wowlan->rfkill_release &&
6589 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6590 goto nla_put_failure;
6591 if (rdev->wowlan->n_patterns) {
6592 struct nlattr *nl_pats, *nl_pat;
6595 nl_pats = nla_nest_start(msg,
6596 NL80211_WOWLAN_TRIG_PKT_PATTERN);
6598 goto nla_put_failure;
6600 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6601 nl_pat = nla_nest_start(msg, i + 1);
6603 goto nla_put_failure;
6604 pat_len = rdev->wowlan->patterns[i].pattern_len;
6605 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6606 DIV_ROUND_UP(pat_len, 8),
6607 rdev->wowlan->patterns[i].mask) ||
6608 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6610 rdev->wowlan->patterns[i].pattern))
6611 goto nla_put_failure;
6612 nla_nest_end(msg, nl_pat);
6614 nla_nest_end(msg, nl_pats);
6617 nla_nest_end(msg, nl_wowlan);
6620 genlmsg_end(msg, hdr);
6621 return genlmsg_reply(msg, info);
6628 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6631 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6632 struct cfg80211_wowlan new_triggers = {};
6633 struct cfg80211_wowlan *ntrig;
6634 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6636 bool prev_enabled = rdev->wowlan;
6638 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6641 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
6642 cfg80211_rdev_free_wowlan(rdev);
6643 rdev->wowlan = NULL;
6647 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
6648 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6649 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
6650 nl80211_wowlan_policy);
6654 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
6655 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
6657 new_triggers.any = true;
6660 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
6661 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
6663 new_triggers.disconnect = true;
6666 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
6667 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
6669 new_triggers.magic_pkt = true;
6672 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
6675 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
6676 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
6678 new_triggers.gtk_rekey_failure = true;
6681 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
6682 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
6684 new_triggers.eap_identity_req = true;
6687 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
6688 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
6690 new_triggers.four_way_handshake = true;
6693 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
6694 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
6696 new_triggers.rfkill_release = true;
6699 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
6702 int rem, pat_len, mask_len;
6703 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
6705 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6708 if (n_patterns > wowlan->n_patterns)
6711 new_triggers.patterns = kcalloc(n_patterns,
6712 sizeof(new_triggers.patterns[0]),
6714 if (!new_triggers.patterns)
6717 new_triggers.n_patterns = n_patterns;
6720 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
6722 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
6723 nla_data(pat), nla_len(pat), NULL);
6725 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
6726 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
6728 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
6729 mask_len = DIV_ROUND_UP(pat_len, 8);
6730 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
6733 if (pat_len > wowlan->pattern_max_len ||
6734 pat_len < wowlan->pattern_min_len)
6737 new_triggers.patterns[i].mask =
6738 kmalloc(mask_len + pat_len, GFP_KERNEL);
6739 if (!new_triggers.patterns[i].mask) {
6743 new_triggers.patterns[i].pattern =
6744 new_triggers.patterns[i].mask + mask_len;
6745 memcpy(new_triggers.patterns[i].mask,
6746 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
6748 new_triggers.patterns[i].pattern_len = pat_len;
6749 memcpy(new_triggers.patterns[i].pattern,
6750 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
6756 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
6761 cfg80211_rdev_free_wowlan(rdev);
6762 rdev->wowlan = ntrig;
6765 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
6766 rdev_set_wakeup(rdev, rdev->wowlan);
6770 for (i = 0; i < new_triggers.n_patterns; i++)
6771 kfree(new_triggers.patterns[i].mask);
6772 kfree(new_triggers.patterns);
6777 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
6779 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6780 struct net_device *dev = info->user_ptr[1];
6781 struct wireless_dev *wdev = dev->ieee80211_ptr;
6782 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
6783 struct cfg80211_gtk_rekey_data rekey_data;
6786 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
6789 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
6790 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
6791 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
6792 nl80211_rekey_policy);
6796 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
6798 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
6800 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
6803 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
6805 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
6807 memcpy(rekey_data.replay_ctr,
6808 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
6809 NL80211_REPLAY_CTR_LEN);
6812 if (!wdev->current_bss) {
6817 if (!rdev->ops->set_rekey_data) {
6822 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
6828 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
6829 struct genl_info *info)
6831 struct net_device *dev = info->user_ptr[1];
6832 struct wireless_dev *wdev = dev->ieee80211_ptr;
6834 if (wdev->iftype != NL80211_IFTYPE_AP &&
6835 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6838 if (wdev->ap_unexpected_nlportid)
6841 wdev->ap_unexpected_nlportid = info->snd_portid;
6845 static int nl80211_probe_client(struct sk_buff *skb,
6846 struct genl_info *info)
6848 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6849 struct net_device *dev = info->user_ptr[1];
6850 struct wireless_dev *wdev = dev->ieee80211_ptr;
6851 struct sk_buff *msg;
6857 if (wdev->iftype != NL80211_IFTYPE_AP &&
6858 wdev->iftype != NL80211_IFTYPE_P2P_GO)
6861 if (!info->attrs[NL80211_ATTR_MAC])
6864 if (!rdev->ops->probe_client)
6867 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6871 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6872 NL80211_CMD_PROBE_CLIENT);
6879 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
6881 err = rdev_probe_client(rdev, dev, addr, &cookie);
6885 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6886 goto nla_put_failure;
6888 genlmsg_end(msg, hdr);
6890 return genlmsg_reply(msg, info);
6899 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
6901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6903 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
6906 if (rdev->ap_beacons_nlportid)
6909 rdev->ap_beacons_nlportid = info->snd_portid;
6914 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
6916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6917 struct wireless_dev *wdev = info->user_ptr[1];
6920 if (!rdev->ops->start_p2p_device)
6923 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6926 if (wdev->p2p_started)
6929 mutex_lock(&rdev->devlist_mtx);
6930 err = cfg80211_can_add_interface(rdev, wdev->iftype);
6931 mutex_unlock(&rdev->devlist_mtx);
6935 err = rdev_start_p2p_device(rdev, wdev);
6939 wdev->p2p_started = true;
6940 mutex_lock(&rdev->devlist_mtx);
6942 mutex_unlock(&rdev->devlist_mtx);
6947 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
6949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6950 struct wireless_dev *wdev = info->user_ptr[1];
6952 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
6955 if (!rdev->ops->stop_p2p_device)
6958 if (!wdev->p2p_started)
6961 rdev_stop_p2p_device(rdev, wdev);
6962 wdev->p2p_started = false;
6964 mutex_lock(&rdev->devlist_mtx);
6966 mutex_unlock(&rdev->devlist_mtx);
6968 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
6969 rdev->scan_req->aborted = true;
6970 ___cfg80211_scan_done(rdev, true);
6976 #define NL80211_FLAG_NEED_WIPHY 0x01
6977 #define NL80211_FLAG_NEED_NETDEV 0x02
6978 #define NL80211_FLAG_NEED_RTNL 0x04
6979 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
6980 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
6981 NL80211_FLAG_CHECK_NETDEV_UP)
6982 #define NL80211_FLAG_NEED_WDEV 0x10
6983 /* If a netdev is associated, it must be UP, P2P must be started */
6984 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
6985 NL80211_FLAG_CHECK_NETDEV_UP)
6987 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
6988 struct genl_info *info)
6990 struct cfg80211_registered_device *rdev;
6991 struct wireless_dev *wdev;
6992 struct net_device *dev;
6993 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
6998 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
6999 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7003 return PTR_ERR(rdev);
7005 info->user_ptr[0] = rdev;
7006 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7007 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7008 mutex_lock(&cfg80211_mutex);
7009 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7012 mutex_unlock(&cfg80211_mutex);
7015 return PTR_ERR(wdev);
7019 rdev = wiphy_to_dev(wdev->wiphy);
7021 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7023 mutex_unlock(&cfg80211_mutex);
7029 info->user_ptr[1] = dev;
7031 info->user_ptr[1] = wdev;
7035 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7036 !netif_running(dev)) {
7037 mutex_unlock(&cfg80211_mutex);
7044 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7045 if (!wdev->p2p_started) {
7046 mutex_unlock(&cfg80211_mutex);
7053 cfg80211_lock_rdev(rdev);
7055 mutex_unlock(&cfg80211_mutex);
7057 info->user_ptr[0] = rdev;
7063 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7064 struct genl_info *info)
7066 if (info->user_ptr[0])
7067 cfg80211_unlock_rdev(info->user_ptr[0]);
7068 if (info->user_ptr[1]) {
7069 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7070 struct wireless_dev *wdev = info->user_ptr[1];
7073 dev_put(wdev->netdev);
7075 dev_put(info->user_ptr[1]);
7078 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7082 static struct genl_ops nl80211_ops[] = {
7084 .cmd = NL80211_CMD_GET_WIPHY,
7085 .doit = nl80211_get_wiphy,
7086 .dumpit = nl80211_dump_wiphy,
7087 .policy = nl80211_policy,
7088 /* can be retrieved by unprivileged users */
7089 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7092 .cmd = NL80211_CMD_SET_WIPHY,
7093 .doit = nl80211_set_wiphy,
7094 .policy = nl80211_policy,
7095 .flags = GENL_ADMIN_PERM,
7096 .internal_flags = NL80211_FLAG_NEED_RTNL,
7099 .cmd = NL80211_CMD_GET_INTERFACE,
7100 .doit = nl80211_get_interface,
7101 .dumpit = nl80211_dump_interface,
7102 .policy = nl80211_policy,
7103 /* can be retrieved by unprivileged users */
7104 .internal_flags = NL80211_FLAG_NEED_WDEV,
7107 .cmd = NL80211_CMD_SET_INTERFACE,
7108 .doit = nl80211_set_interface,
7109 .policy = nl80211_policy,
7110 .flags = GENL_ADMIN_PERM,
7111 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7112 NL80211_FLAG_NEED_RTNL,
7115 .cmd = NL80211_CMD_NEW_INTERFACE,
7116 .doit = nl80211_new_interface,
7117 .policy = nl80211_policy,
7118 .flags = GENL_ADMIN_PERM,
7119 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7120 NL80211_FLAG_NEED_RTNL,
7123 .cmd = NL80211_CMD_DEL_INTERFACE,
7124 .doit = nl80211_del_interface,
7125 .policy = nl80211_policy,
7126 .flags = GENL_ADMIN_PERM,
7127 .internal_flags = NL80211_FLAG_NEED_WDEV |
7128 NL80211_FLAG_NEED_RTNL,
7131 .cmd = NL80211_CMD_GET_KEY,
7132 .doit = nl80211_get_key,
7133 .policy = nl80211_policy,
7134 .flags = GENL_ADMIN_PERM,
7135 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7136 NL80211_FLAG_NEED_RTNL,
7139 .cmd = NL80211_CMD_SET_KEY,
7140 .doit = nl80211_set_key,
7141 .policy = nl80211_policy,
7142 .flags = GENL_ADMIN_PERM,
7143 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7144 NL80211_FLAG_NEED_RTNL,
7147 .cmd = NL80211_CMD_NEW_KEY,
7148 .doit = nl80211_new_key,
7149 .policy = nl80211_policy,
7150 .flags = GENL_ADMIN_PERM,
7151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7152 NL80211_FLAG_NEED_RTNL,
7155 .cmd = NL80211_CMD_DEL_KEY,
7156 .doit = nl80211_del_key,
7157 .policy = nl80211_policy,
7158 .flags = GENL_ADMIN_PERM,
7159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7160 NL80211_FLAG_NEED_RTNL,
7163 .cmd = NL80211_CMD_SET_BEACON,
7164 .policy = nl80211_policy,
7165 .flags = GENL_ADMIN_PERM,
7166 .doit = nl80211_set_beacon,
7167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7168 NL80211_FLAG_NEED_RTNL,
7171 .cmd = NL80211_CMD_START_AP,
7172 .policy = nl80211_policy,
7173 .flags = GENL_ADMIN_PERM,
7174 .doit = nl80211_start_ap,
7175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7176 NL80211_FLAG_NEED_RTNL,
7179 .cmd = NL80211_CMD_STOP_AP,
7180 .policy = nl80211_policy,
7181 .flags = GENL_ADMIN_PERM,
7182 .doit = nl80211_stop_ap,
7183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7184 NL80211_FLAG_NEED_RTNL,
7187 .cmd = NL80211_CMD_GET_STATION,
7188 .doit = nl80211_get_station,
7189 .dumpit = nl80211_dump_station,
7190 .policy = nl80211_policy,
7191 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7192 NL80211_FLAG_NEED_RTNL,
7195 .cmd = NL80211_CMD_SET_STATION,
7196 .doit = nl80211_set_station,
7197 .policy = nl80211_policy,
7198 .flags = GENL_ADMIN_PERM,
7199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7200 NL80211_FLAG_NEED_RTNL,
7203 .cmd = NL80211_CMD_NEW_STATION,
7204 .doit = nl80211_new_station,
7205 .policy = nl80211_policy,
7206 .flags = GENL_ADMIN_PERM,
7207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7208 NL80211_FLAG_NEED_RTNL,
7211 .cmd = NL80211_CMD_DEL_STATION,
7212 .doit = nl80211_del_station,
7213 .policy = nl80211_policy,
7214 .flags = GENL_ADMIN_PERM,
7215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7216 NL80211_FLAG_NEED_RTNL,
7219 .cmd = NL80211_CMD_GET_MPATH,
7220 .doit = nl80211_get_mpath,
7221 .dumpit = nl80211_dump_mpath,
7222 .policy = nl80211_policy,
7223 .flags = GENL_ADMIN_PERM,
7224 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7225 NL80211_FLAG_NEED_RTNL,
7228 .cmd = NL80211_CMD_SET_MPATH,
7229 .doit = nl80211_set_mpath,
7230 .policy = nl80211_policy,
7231 .flags = GENL_ADMIN_PERM,
7232 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7233 NL80211_FLAG_NEED_RTNL,
7236 .cmd = NL80211_CMD_NEW_MPATH,
7237 .doit = nl80211_new_mpath,
7238 .policy = nl80211_policy,
7239 .flags = GENL_ADMIN_PERM,
7240 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7241 NL80211_FLAG_NEED_RTNL,
7244 .cmd = NL80211_CMD_DEL_MPATH,
7245 .doit = nl80211_del_mpath,
7246 .policy = nl80211_policy,
7247 .flags = GENL_ADMIN_PERM,
7248 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7249 NL80211_FLAG_NEED_RTNL,
7252 .cmd = NL80211_CMD_SET_BSS,
7253 .doit = nl80211_set_bss,
7254 .policy = nl80211_policy,
7255 .flags = GENL_ADMIN_PERM,
7256 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7257 NL80211_FLAG_NEED_RTNL,
7260 .cmd = NL80211_CMD_GET_REG,
7261 .doit = nl80211_get_reg,
7262 .policy = nl80211_policy,
7263 /* can be retrieved by unprivileged users */
7266 .cmd = NL80211_CMD_SET_REG,
7267 .doit = nl80211_set_reg,
7268 .policy = nl80211_policy,
7269 .flags = GENL_ADMIN_PERM,
7272 .cmd = NL80211_CMD_REQ_SET_REG,
7273 .doit = nl80211_req_set_reg,
7274 .policy = nl80211_policy,
7275 .flags = GENL_ADMIN_PERM,
7278 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7279 .doit = nl80211_get_mesh_config,
7280 .policy = nl80211_policy,
7281 /* can be retrieved by unprivileged users */
7282 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7283 NL80211_FLAG_NEED_RTNL,
7286 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7287 .doit = nl80211_update_mesh_config,
7288 .policy = nl80211_policy,
7289 .flags = GENL_ADMIN_PERM,
7290 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7291 NL80211_FLAG_NEED_RTNL,
7294 .cmd = NL80211_CMD_TRIGGER_SCAN,
7295 .doit = nl80211_trigger_scan,
7296 .policy = nl80211_policy,
7297 .flags = GENL_ADMIN_PERM,
7298 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7299 NL80211_FLAG_NEED_RTNL,
7302 .cmd = NL80211_CMD_GET_SCAN,
7303 .policy = nl80211_policy,
7304 .dumpit = nl80211_dump_scan,
7307 .cmd = NL80211_CMD_START_SCHED_SCAN,
7308 .doit = nl80211_start_sched_scan,
7309 .policy = nl80211_policy,
7310 .flags = GENL_ADMIN_PERM,
7311 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7312 NL80211_FLAG_NEED_RTNL,
7315 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7316 .doit = nl80211_stop_sched_scan,
7317 .policy = nl80211_policy,
7318 .flags = GENL_ADMIN_PERM,
7319 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7320 NL80211_FLAG_NEED_RTNL,
7323 .cmd = NL80211_CMD_AUTHENTICATE,
7324 .doit = nl80211_authenticate,
7325 .policy = nl80211_policy,
7326 .flags = GENL_ADMIN_PERM,
7327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7328 NL80211_FLAG_NEED_RTNL,
7331 .cmd = NL80211_CMD_ASSOCIATE,
7332 .doit = nl80211_associate,
7333 .policy = nl80211_policy,
7334 .flags = GENL_ADMIN_PERM,
7335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7336 NL80211_FLAG_NEED_RTNL,
7339 .cmd = NL80211_CMD_DEAUTHENTICATE,
7340 .doit = nl80211_deauthenticate,
7341 .policy = nl80211_policy,
7342 .flags = GENL_ADMIN_PERM,
7343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7344 NL80211_FLAG_NEED_RTNL,
7347 .cmd = NL80211_CMD_DISASSOCIATE,
7348 .doit = nl80211_disassociate,
7349 .policy = nl80211_policy,
7350 .flags = GENL_ADMIN_PERM,
7351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7352 NL80211_FLAG_NEED_RTNL,
7355 .cmd = NL80211_CMD_JOIN_IBSS,
7356 .doit = nl80211_join_ibss,
7357 .policy = nl80211_policy,
7358 .flags = GENL_ADMIN_PERM,
7359 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7360 NL80211_FLAG_NEED_RTNL,
7363 .cmd = NL80211_CMD_LEAVE_IBSS,
7364 .doit = nl80211_leave_ibss,
7365 .policy = nl80211_policy,
7366 .flags = GENL_ADMIN_PERM,
7367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7368 NL80211_FLAG_NEED_RTNL,
7370 #ifdef CONFIG_NL80211_TESTMODE
7372 .cmd = NL80211_CMD_TESTMODE,
7373 .doit = nl80211_testmode_do,
7374 .dumpit = nl80211_testmode_dump,
7375 .policy = nl80211_policy,
7376 .flags = GENL_ADMIN_PERM,
7377 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7378 NL80211_FLAG_NEED_RTNL,
7382 .cmd = NL80211_CMD_CONNECT,
7383 .doit = nl80211_connect,
7384 .policy = nl80211_policy,
7385 .flags = GENL_ADMIN_PERM,
7386 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7387 NL80211_FLAG_NEED_RTNL,
7390 .cmd = NL80211_CMD_DISCONNECT,
7391 .doit = nl80211_disconnect,
7392 .policy = nl80211_policy,
7393 .flags = GENL_ADMIN_PERM,
7394 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7395 NL80211_FLAG_NEED_RTNL,
7398 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7399 .doit = nl80211_wiphy_netns,
7400 .policy = nl80211_policy,
7401 .flags = GENL_ADMIN_PERM,
7402 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7403 NL80211_FLAG_NEED_RTNL,
7406 .cmd = NL80211_CMD_GET_SURVEY,
7407 .policy = nl80211_policy,
7408 .dumpit = nl80211_dump_survey,
7411 .cmd = NL80211_CMD_SET_PMKSA,
7412 .doit = nl80211_setdel_pmksa,
7413 .policy = nl80211_policy,
7414 .flags = GENL_ADMIN_PERM,
7415 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7416 NL80211_FLAG_NEED_RTNL,
7419 .cmd = NL80211_CMD_DEL_PMKSA,
7420 .doit = nl80211_setdel_pmksa,
7421 .policy = nl80211_policy,
7422 .flags = GENL_ADMIN_PERM,
7423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7424 NL80211_FLAG_NEED_RTNL,
7427 .cmd = NL80211_CMD_FLUSH_PMKSA,
7428 .doit = nl80211_flush_pmksa,
7429 .policy = nl80211_policy,
7430 .flags = GENL_ADMIN_PERM,
7431 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7432 NL80211_FLAG_NEED_RTNL,
7435 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7436 .doit = nl80211_remain_on_channel,
7437 .policy = nl80211_policy,
7438 .flags = GENL_ADMIN_PERM,
7439 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7440 NL80211_FLAG_NEED_RTNL,
7443 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7444 .doit = nl80211_cancel_remain_on_channel,
7445 .policy = nl80211_policy,
7446 .flags = GENL_ADMIN_PERM,
7447 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7448 NL80211_FLAG_NEED_RTNL,
7451 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7452 .doit = nl80211_set_tx_bitrate_mask,
7453 .policy = nl80211_policy,
7454 .flags = GENL_ADMIN_PERM,
7455 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7456 NL80211_FLAG_NEED_RTNL,
7459 .cmd = NL80211_CMD_REGISTER_FRAME,
7460 .doit = nl80211_register_mgmt,
7461 .policy = nl80211_policy,
7462 .flags = GENL_ADMIN_PERM,
7463 .internal_flags = NL80211_FLAG_NEED_WDEV |
7464 NL80211_FLAG_NEED_RTNL,
7467 .cmd = NL80211_CMD_FRAME,
7468 .doit = nl80211_tx_mgmt,
7469 .policy = nl80211_policy,
7470 .flags = GENL_ADMIN_PERM,
7471 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7472 NL80211_FLAG_NEED_RTNL,
7475 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7476 .doit = nl80211_tx_mgmt_cancel_wait,
7477 .policy = nl80211_policy,
7478 .flags = GENL_ADMIN_PERM,
7479 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7480 NL80211_FLAG_NEED_RTNL,
7483 .cmd = NL80211_CMD_SET_POWER_SAVE,
7484 .doit = nl80211_set_power_save,
7485 .policy = nl80211_policy,
7486 .flags = GENL_ADMIN_PERM,
7487 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7488 NL80211_FLAG_NEED_RTNL,
7491 .cmd = NL80211_CMD_GET_POWER_SAVE,
7492 .doit = nl80211_get_power_save,
7493 .policy = nl80211_policy,
7494 /* can be retrieved by unprivileged users */
7495 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7496 NL80211_FLAG_NEED_RTNL,
7499 .cmd = NL80211_CMD_SET_CQM,
7500 .doit = nl80211_set_cqm,
7501 .policy = nl80211_policy,
7502 .flags = GENL_ADMIN_PERM,
7503 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7504 NL80211_FLAG_NEED_RTNL,
7507 .cmd = NL80211_CMD_SET_CHANNEL,
7508 .doit = nl80211_set_channel,
7509 .policy = nl80211_policy,
7510 .flags = GENL_ADMIN_PERM,
7511 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7512 NL80211_FLAG_NEED_RTNL,
7515 .cmd = NL80211_CMD_SET_WDS_PEER,
7516 .doit = nl80211_set_wds_peer,
7517 .policy = nl80211_policy,
7518 .flags = GENL_ADMIN_PERM,
7519 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7520 NL80211_FLAG_NEED_RTNL,
7523 .cmd = NL80211_CMD_JOIN_MESH,
7524 .doit = nl80211_join_mesh,
7525 .policy = nl80211_policy,
7526 .flags = GENL_ADMIN_PERM,
7527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7528 NL80211_FLAG_NEED_RTNL,
7531 .cmd = NL80211_CMD_LEAVE_MESH,
7532 .doit = nl80211_leave_mesh,
7533 .policy = nl80211_policy,
7534 .flags = GENL_ADMIN_PERM,
7535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7536 NL80211_FLAG_NEED_RTNL,
7540 .cmd = NL80211_CMD_GET_WOWLAN,
7541 .doit = nl80211_get_wowlan,
7542 .policy = nl80211_policy,
7543 /* can be retrieved by unprivileged users */
7544 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7545 NL80211_FLAG_NEED_RTNL,
7548 .cmd = NL80211_CMD_SET_WOWLAN,
7549 .doit = nl80211_set_wowlan,
7550 .policy = nl80211_policy,
7551 .flags = GENL_ADMIN_PERM,
7552 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7553 NL80211_FLAG_NEED_RTNL,
7557 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7558 .doit = nl80211_set_rekey_data,
7559 .policy = nl80211_policy,
7560 .flags = GENL_ADMIN_PERM,
7561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7562 NL80211_FLAG_NEED_RTNL,
7565 .cmd = NL80211_CMD_TDLS_MGMT,
7566 .doit = nl80211_tdls_mgmt,
7567 .policy = nl80211_policy,
7568 .flags = GENL_ADMIN_PERM,
7569 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7570 NL80211_FLAG_NEED_RTNL,
7573 .cmd = NL80211_CMD_TDLS_OPER,
7574 .doit = nl80211_tdls_oper,
7575 .policy = nl80211_policy,
7576 .flags = GENL_ADMIN_PERM,
7577 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7578 NL80211_FLAG_NEED_RTNL,
7581 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7582 .doit = nl80211_register_unexpected_frame,
7583 .policy = nl80211_policy,
7584 .flags = GENL_ADMIN_PERM,
7585 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7586 NL80211_FLAG_NEED_RTNL,
7589 .cmd = NL80211_CMD_PROBE_CLIENT,
7590 .doit = nl80211_probe_client,
7591 .policy = nl80211_policy,
7592 .flags = GENL_ADMIN_PERM,
7593 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7594 NL80211_FLAG_NEED_RTNL,
7597 .cmd = NL80211_CMD_REGISTER_BEACONS,
7598 .doit = nl80211_register_beacons,
7599 .policy = nl80211_policy,
7600 .flags = GENL_ADMIN_PERM,
7601 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7602 NL80211_FLAG_NEED_RTNL,
7605 .cmd = NL80211_CMD_SET_NOACK_MAP,
7606 .doit = nl80211_set_noack_map,
7607 .policy = nl80211_policy,
7608 .flags = GENL_ADMIN_PERM,
7609 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7610 NL80211_FLAG_NEED_RTNL,
7613 .cmd = NL80211_CMD_START_P2P_DEVICE,
7614 .doit = nl80211_start_p2p_device,
7615 .policy = nl80211_policy,
7616 .flags = GENL_ADMIN_PERM,
7617 .internal_flags = NL80211_FLAG_NEED_WDEV |
7618 NL80211_FLAG_NEED_RTNL,
7621 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
7622 .doit = nl80211_stop_p2p_device,
7623 .policy = nl80211_policy,
7624 .flags = GENL_ADMIN_PERM,
7625 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7626 NL80211_FLAG_NEED_RTNL,
7630 static struct genl_multicast_group nl80211_mlme_mcgrp = {
7634 /* multicast groups */
7635 static struct genl_multicast_group nl80211_config_mcgrp = {
7638 static struct genl_multicast_group nl80211_scan_mcgrp = {
7641 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
7642 .name = "regulatory",
7645 /* notification functions */
7647 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
7649 struct sk_buff *msg;
7651 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7655 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
7660 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7661 nl80211_config_mcgrp.id, GFP_KERNEL);
7664 static int nl80211_add_scan_req(struct sk_buff *msg,
7665 struct cfg80211_registered_device *rdev)
7667 struct cfg80211_scan_request *req = rdev->scan_req;
7668 struct nlattr *nest;
7671 ASSERT_RDEV_LOCK(rdev);
7676 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
7678 goto nla_put_failure;
7679 for (i = 0; i < req->n_ssids; i++) {
7680 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
7681 goto nla_put_failure;
7683 nla_nest_end(msg, nest);
7685 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
7687 goto nla_put_failure;
7688 for (i = 0; i < req->n_channels; i++) {
7689 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
7690 goto nla_put_failure;
7692 nla_nest_end(msg, nest);
7695 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
7696 goto nla_put_failure;
7699 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
7706 static int nl80211_send_scan_msg(struct sk_buff *msg,
7707 struct cfg80211_registered_device *rdev,
7708 struct wireless_dev *wdev,
7709 u32 portid, u32 seq, int flags,
7714 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7718 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7719 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
7720 wdev->netdev->ifindex)) ||
7721 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
7722 goto nla_put_failure;
7724 /* ignore errors and send incomplete event anyway */
7725 nl80211_add_scan_req(msg, rdev);
7727 return genlmsg_end(msg, hdr);
7730 genlmsg_cancel(msg, hdr);
7735 nl80211_send_sched_scan_msg(struct sk_buff *msg,
7736 struct cfg80211_registered_device *rdev,
7737 struct net_device *netdev,
7738 u32 portid, u32 seq, int flags, u32 cmd)
7742 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
7746 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7747 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
7748 goto nla_put_failure;
7750 return genlmsg_end(msg, hdr);
7753 genlmsg_cancel(msg, hdr);
7757 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
7758 struct wireless_dev *wdev)
7760 struct sk_buff *msg;
7762 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7766 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7767 NL80211_CMD_TRIGGER_SCAN) < 0) {
7772 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7773 nl80211_scan_mcgrp.id, GFP_KERNEL);
7776 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
7777 struct wireless_dev *wdev)
7779 struct sk_buff *msg;
7781 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7785 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7786 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
7791 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7792 nl80211_scan_mcgrp.id, GFP_KERNEL);
7795 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
7796 struct wireless_dev *wdev)
7798 struct sk_buff *msg;
7800 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7804 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
7805 NL80211_CMD_SCAN_ABORTED) < 0) {
7810 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7811 nl80211_scan_mcgrp.id, GFP_KERNEL);
7814 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
7815 struct net_device *netdev)
7817 struct sk_buff *msg;
7819 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7823 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
7824 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
7829 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7830 nl80211_scan_mcgrp.id, GFP_KERNEL);
7833 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
7834 struct net_device *netdev, u32 cmd)
7836 struct sk_buff *msg;
7838 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7842 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
7847 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7848 nl80211_scan_mcgrp.id, GFP_KERNEL);
7852 * This can happen on global regulatory changes or device specific settings
7853 * based on custom world regulatory domains.
7855 void nl80211_send_reg_change_event(struct regulatory_request *request)
7857 struct sk_buff *msg;
7860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7864 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
7870 /* Userspace can always count this one always being set */
7871 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
7872 goto nla_put_failure;
7874 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
7875 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7876 NL80211_REGDOM_TYPE_WORLD))
7877 goto nla_put_failure;
7878 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
7879 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7880 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
7881 goto nla_put_failure;
7882 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
7883 request->intersect) {
7884 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7885 NL80211_REGDOM_TYPE_INTERSECTION))
7886 goto nla_put_failure;
7888 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
7889 NL80211_REGDOM_TYPE_COUNTRY) ||
7890 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
7892 goto nla_put_failure;
7895 if (wiphy_idx_valid(request->wiphy_idx) &&
7896 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
7897 goto nla_put_failure;
7899 genlmsg_end(msg, hdr);
7902 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
7909 genlmsg_cancel(msg, hdr);
7913 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
7914 struct net_device *netdev,
7915 const u8 *buf, size_t len,
7916 enum nl80211_commands cmd, gfp_t gfp)
7918 struct sk_buff *msg;
7921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
7925 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
7931 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
7932 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
7933 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
7934 goto nla_put_failure;
7936 genlmsg_end(msg, hdr);
7938 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
7939 nl80211_mlme_mcgrp.id, gfp);
7943 genlmsg_cancel(msg, hdr);
7947 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
7948 struct net_device *netdev, const u8 *buf,
7949 size_t len, gfp_t gfp)
7951 nl80211_send_mlme_event(rdev, netdev, buf, len,
7952 NL80211_CMD_AUTHENTICATE, gfp);
7955 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
7956 struct net_device *netdev, const u8 *buf,
7957 size_t len, gfp_t gfp)
7959 nl80211_send_mlme_event(rdev, netdev, buf, len,
7960 NL80211_CMD_ASSOCIATE, gfp);
7963 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
7964 struct net_device *netdev, const u8 *buf,
7965 size_t len, gfp_t gfp)
7967 nl80211_send_mlme_event(rdev, netdev, buf, len,
7968 NL80211_CMD_DEAUTHENTICATE, gfp);
7971 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
7972 struct net_device *netdev, const u8 *buf,
7973 size_t len, gfp_t gfp)
7975 nl80211_send_mlme_event(rdev, netdev, buf, len,
7976 NL80211_CMD_DISASSOCIATE, gfp);
7979 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
7980 struct net_device *netdev, const u8 *buf,
7981 size_t len, gfp_t gfp)
7983 nl80211_send_mlme_event(rdev, netdev, buf, len,
7984 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
7987 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
7988 struct net_device *netdev, const u8 *buf,
7989 size_t len, gfp_t gfp)
7991 nl80211_send_mlme_event(rdev, netdev, buf, len,
7992 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
7995 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
7996 struct net_device *netdev, int cmd,
7997 const u8 *addr, gfp_t gfp)
7999 struct sk_buff *msg;
8002 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8006 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8012 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8013 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8014 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8015 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8016 goto nla_put_failure;
8018 genlmsg_end(msg, hdr);
8020 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8021 nl80211_mlme_mcgrp.id, gfp);
8025 genlmsg_cancel(msg, hdr);
8029 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8030 struct net_device *netdev, const u8 *addr,
8033 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8037 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8038 struct net_device *netdev, const u8 *addr,
8041 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8045 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8046 struct net_device *netdev, const u8 *bssid,
8047 const u8 *req_ie, size_t req_ie_len,
8048 const u8 *resp_ie, size_t resp_ie_len,
8049 u16 status, gfp_t gfp)
8051 struct sk_buff *msg;
8054 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8058 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8064 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8065 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8066 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8067 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8069 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8071 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8072 goto nla_put_failure;
8074 genlmsg_end(msg, hdr);
8076 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8077 nl80211_mlme_mcgrp.id, gfp);
8081 genlmsg_cancel(msg, hdr);
8086 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8087 struct net_device *netdev, const u8 *bssid,
8088 const u8 *req_ie, size_t req_ie_len,
8089 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8091 struct sk_buff *msg;
8094 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8098 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8104 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8105 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8106 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8108 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8110 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8111 goto nla_put_failure;
8113 genlmsg_end(msg, hdr);
8115 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8116 nl80211_mlme_mcgrp.id, gfp);
8120 genlmsg_cancel(msg, hdr);
8125 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8126 struct net_device *netdev, u16 reason,
8127 const u8 *ie, size_t ie_len, bool from_ap)
8129 struct sk_buff *msg;
8132 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8136 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8142 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8143 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8144 (from_ap && reason &&
8145 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8147 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8148 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8149 goto nla_put_failure;
8151 genlmsg_end(msg, hdr);
8153 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8154 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8158 genlmsg_cancel(msg, hdr);
8163 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8164 struct net_device *netdev, const u8 *bssid,
8167 struct sk_buff *msg;
8170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8174 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8180 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8181 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8182 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8183 goto nla_put_failure;
8185 genlmsg_end(msg, hdr);
8187 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8188 nl80211_mlme_mcgrp.id, gfp);
8192 genlmsg_cancel(msg, hdr);
8196 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8197 struct net_device *netdev,
8198 const u8 *macaddr, const u8* ie, u8 ie_len,
8201 struct sk_buff *msg;
8204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8208 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8216 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8218 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8219 goto nla_put_failure;
8221 genlmsg_end(msg, hdr);
8223 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8224 nl80211_mlme_mcgrp.id, gfp);
8228 genlmsg_cancel(msg, hdr);
8232 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8233 struct net_device *netdev, const u8 *addr,
8234 enum nl80211_key_type key_type, int key_id,
8235 const u8 *tsc, gfp_t gfp)
8237 struct sk_buff *msg;
8240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8244 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8250 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8251 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8252 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8253 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8255 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8256 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8257 goto nla_put_failure;
8259 genlmsg_end(msg, hdr);
8261 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8262 nl80211_mlme_mcgrp.id, gfp);
8266 genlmsg_cancel(msg, hdr);
8270 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8271 struct ieee80211_channel *channel_before,
8272 struct ieee80211_channel *channel_after)
8274 struct sk_buff *msg;
8276 struct nlattr *nl_freq;
8278 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8282 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8289 * Since we are applying the beacon hint to a wiphy we know its
8290 * wiphy_idx is valid
8292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8293 goto nla_put_failure;
8296 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8298 goto nla_put_failure;
8299 if (nl80211_msg_put_channel(msg, channel_before))
8300 goto nla_put_failure;
8301 nla_nest_end(msg, nl_freq);
8304 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8306 goto nla_put_failure;
8307 if (nl80211_msg_put_channel(msg, channel_after))
8308 goto nla_put_failure;
8309 nla_nest_end(msg, nl_freq);
8311 genlmsg_end(msg, hdr);
8314 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8321 genlmsg_cancel(msg, hdr);
8325 static void nl80211_send_remain_on_chan_event(
8326 int cmd, struct cfg80211_registered_device *rdev,
8327 struct wireless_dev *wdev, u64 cookie,
8328 struct ieee80211_channel *chan,
8329 enum nl80211_channel_type channel_type,
8330 unsigned int duration, gfp_t gfp)
8332 struct sk_buff *msg;
8335 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8339 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8346 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8347 wdev->netdev->ifindex)) ||
8348 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8349 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8350 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, channel_type) ||
8351 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8352 goto nla_put_failure;
8354 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8355 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8356 goto nla_put_failure;
8358 genlmsg_end(msg, hdr);
8360 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8361 nl80211_mlme_mcgrp.id, gfp);
8365 genlmsg_cancel(msg, hdr);
8369 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8370 struct wireless_dev *wdev, u64 cookie,
8371 struct ieee80211_channel *chan,
8372 enum nl80211_channel_type channel_type,
8373 unsigned int duration, gfp_t gfp)
8375 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8376 rdev, wdev, cookie, chan,
8377 channel_type, duration, gfp);
8380 void nl80211_send_remain_on_channel_cancel(
8381 struct cfg80211_registered_device *rdev,
8382 struct wireless_dev *wdev,
8383 u64 cookie, struct ieee80211_channel *chan,
8384 enum nl80211_channel_type channel_type, gfp_t gfp)
8386 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8387 rdev, wdev, cookie, chan,
8388 channel_type, 0, gfp);
8391 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8392 struct net_device *dev, const u8 *mac_addr,
8393 struct station_info *sinfo, gfp_t gfp)
8395 struct sk_buff *msg;
8397 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8401 if (nl80211_send_station(msg, 0, 0, 0,
8402 rdev, dev, mac_addr, sinfo) < 0) {
8407 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8408 nl80211_mlme_mcgrp.id, gfp);
8411 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8412 struct net_device *dev, const u8 *mac_addr,
8415 struct sk_buff *msg;
8418 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8422 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8428 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8429 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8430 goto nla_put_failure;
8432 genlmsg_end(msg, hdr);
8434 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8435 nl80211_mlme_mcgrp.id, gfp);
8439 genlmsg_cancel(msg, hdr);
8443 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8444 struct net_device *dev, const u8 *mac_addr,
8445 enum nl80211_connect_failed_reason reason,
8448 struct sk_buff *msg;
8451 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8455 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8461 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8462 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8463 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8464 goto nla_put_failure;
8466 genlmsg_end(msg, hdr);
8468 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8469 nl80211_mlme_mcgrp.id, gfp);
8473 genlmsg_cancel(msg, hdr);
8477 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8478 const u8 *addr, gfp_t gfp)
8480 struct wireless_dev *wdev = dev->ieee80211_ptr;
8481 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8482 struct sk_buff *msg;
8485 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
8490 msg = nlmsg_new(100, gfp);
8494 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8502 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8503 goto nla_put_failure;
8505 err = genlmsg_end(msg, hdr);
8511 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8515 genlmsg_cancel(msg, hdr);
8520 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8522 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8526 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8527 const u8 *addr, gfp_t gfp)
8529 return __nl80211_unexpected_frame(dev,
8530 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8534 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8535 struct wireless_dev *wdev, u32 nlportid,
8536 int freq, int sig_dbm,
8537 const u8 *buf, size_t len, gfp_t gfp)
8539 struct net_device *netdev = wdev->netdev;
8540 struct sk_buff *msg;
8543 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8547 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8553 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8554 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8555 netdev->ifindex)) ||
8556 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8558 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8559 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8560 goto nla_put_failure;
8562 genlmsg_end(msg, hdr);
8564 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8567 genlmsg_cancel(msg, hdr);
8572 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8573 struct wireless_dev *wdev, u64 cookie,
8574 const u8 *buf, size_t len, bool ack,
8577 struct net_device *netdev = wdev->netdev;
8578 struct sk_buff *msg;
8581 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8585 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8591 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8592 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8593 netdev->ifindex)) ||
8594 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8595 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8596 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8597 goto nla_put_failure;
8599 genlmsg_end(msg, hdr);
8601 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
8605 genlmsg_cancel(msg, hdr);
8610 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
8611 struct net_device *netdev,
8612 enum nl80211_cqm_rssi_threshold_event rssi_event,
8615 struct sk_buff *msg;
8616 struct nlattr *pinfoattr;
8619 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8623 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8629 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8630 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8631 goto nla_put_failure;
8633 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8635 goto nla_put_failure;
8637 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
8639 goto nla_put_failure;
8641 nla_nest_end(msg, pinfoattr);
8643 genlmsg_end(msg, hdr);
8645 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8646 nl80211_mlme_mcgrp.id, gfp);
8650 genlmsg_cancel(msg, hdr);
8654 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
8655 struct net_device *netdev, const u8 *bssid,
8656 const u8 *replay_ctr, gfp_t gfp)
8658 struct sk_buff *msg;
8659 struct nlattr *rekey_attr;
8662 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8666 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
8672 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8673 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8674 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8675 goto nla_put_failure;
8677 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
8679 goto nla_put_failure;
8681 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
8682 NL80211_REPLAY_CTR_LEN, replay_ctr))
8683 goto nla_put_failure;
8685 nla_nest_end(msg, rekey_attr);
8687 genlmsg_end(msg, hdr);
8689 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8690 nl80211_mlme_mcgrp.id, gfp);
8694 genlmsg_cancel(msg, hdr);
8698 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
8699 struct net_device *netdev, int index,
8700 const u8 *bssid, bool preauth, gfp_t gfp)
8702 struct sk_buff *msg;
8703 struct nlattr *attr;
8706 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8710 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
8716 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8717 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8718 goto nla_put_failure;
8720 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
8722 goto nla_put_failure;
8724 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
8725 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
8727 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
8728 goto nla_put_failure;
8730 nla_nest_end(msg, attr);
8732 genlmsg_end(msg, hdr);
8734 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8735 nl80211_mlme_mcgrp.id, gfp);
8739 genlmsg_cancel(msg, hdr);
8743 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
8744 struct net_device *netdev, int freq,
8745 enum nl80211_channel_type type, gfp_t gfp)
8747 struct sk_buff *msg;
8750 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8754 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
8760 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8761 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8762 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE, type))
8763 goto nla_put_failure;
8765 genlmsg_end(msg, hdr);
8767 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8768 nl80211_mlme_mcgrp.id, gfp);
8772 genlmsg_cancel(msg, hdr);
8777 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
8778 struct net_device *netdev, const u8 *peer,
8779 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
8781 struct sk_buff *msg;
8782 struct nlattr *pinfoattr;
8785 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8789 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8795 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8796 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8797 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8798 goto nla_put_failure;
8800 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8802 goto nla_put_failure;
8804 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
8805 goto nla_put_failure;
8807 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
8808 goto nla_put_failure;
8810 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
8811 goto nla_put_failure;
8813 nla_nest_end(msg, pinfoattr);
8815 genlmsg_end(msg, hdr);
8817 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8818 nl80211_mlme_mcgrp.id, gfp);
8822 genlmsg_cancel(msg, hdr);
8827 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
8828 struct net_device *netdev, const u8 *peer,
8829 u32 num_packets, gfp_t gfp)
8831 struct sk_buff *msg;
8832 struct nlattr *pinfoattr;
8835 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8839 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
8845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8846 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8847 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
8848 goto nla_put_failure;
8850 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
8852 goto nla_put_failure;
8854 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
8855 goto nla_put_failure;
8857 nla_nest_end(msg, pinfoattr);
8859 genlmsg_end(msg, hdr);
8861 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8862 nl80211_mlme_mcgrp.id, gfp);
8866 genlmsg_cancel(msg, hdr);
8870 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
8871 u64 cookie, bool acked, gfp_t gfp)
8873 struct wireless_dev *wdev = dev->ieee80211_ptr;
8874 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8875 struct sk_buff *msg;
8879 trace_cfg80211_probe_status(dev, addr, cookie, acked);
8881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8886 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
8892 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8893 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8894 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
8895 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8896 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
8897 goto nla_put_failure;
8899 err = genlmsg_end(msg, hdr);
8905 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8906 nl80211_mlme_mcgrp.id, gfp);
8910 genlmsg_cancel(msg, hdr);
8913 EXPORT_SYMBOL(cfg80211_probe_status);
8915 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
8916 const u8 *frame, size_t len,
8917 int freq, int sig_dbm, gfp_t gfp)
8919 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
8920 struct sk_buff *msg;
8922 u32 nlportid = ACCESS_ONCE(rdev->ap_beacons_nlportid);
8924 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
8929 msg = nlmsg_new(len + 100, gfp);
8933 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8939 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8941 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
8943 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8944 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
8945 goto nla_put_failure;
8947 genlmsg_end(msg, hdr);
8949 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8953 genlmsg_cancel(msg, hdr);
8956 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
8958 static int nl80211_netlink_notify(struct notifier_block * nb,
8959 unsigned long state,
8962 struct netlink_notify *notify = _notify;
8963 struct cfg80211_registered_device *rdev;
8964 struct wireless_dev *wdev;
8966 if (state != NETLINK_URELEASE)
8971 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
8972 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
8973 cfg80211_mlme_unregister_socket(wdev, notify->portid);
8974 if (rdev->ap_beacons_nlportid == notify->portid)
8975 rdev->ap_beacons_nlportid = 0;
8983 static struct notifier_block nl80211_netlink_notifier = {
8984 .notifier_call = nl80211_netlink_notify,
8987 /* initialisation/exit functions */
8989 int nl80211_init(void)
8993 err = genl_register_family_with_ops(&nl80211_fam,
8994 nl80211_ops, ARRAY_SIZE(nl80211_ops));
8998 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9002 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9006 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9010 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9014 #ifdef CONFIG_NL80211_TESTMODE
9015 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9020 err = netlink_register_notifier(&nl80211_netlink_notifier);
9026 genl_unregister_family(&nl80211_fam);
9030 void nl80211_exit(void)
9032 netlink_unregister_notifier(&nl80211_netlink_notifier);
9033 genl_unregister_family(&nl80211_fam);