2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
27 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
28 struct genl_info *info,
29 struct cfg80211_crypto_settings *settings,
32 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
33 struct genl_info *info);
34 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
37 /* the netlink family */
38 static struct genl_family nl80211_fam = {
39 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
40 .name = "nl80211", /* have users key off the name instead */
41 .hdrsize = 0, /* no private header */
42 .version = 1, /* no particular meaning now */
43 .maxattr = NL80211_ATTR_MAX,
45 .pre_doit = nl80211_pre_doit,
46 .post_doit = nl80211_post_doit,
49 /* returns ERR_PTR values */
50 static struct wireless_dev *
51 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
53 struct cfg80211_registered_device *rdev;
54 struct wireless_dev *result = NULL;
55 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
56 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
61 assert_cfg80211_lock();
63 if (!have_ifidx && !have_wdev_id)
64 return ERR_PTR(-EINVAL);
67 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
69 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
70 wiphy_idx = wdev_id >> 32;
73 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
74 struct wireless_dev *wdev;
76 if (wiphy_net(&rdev->wiphy) != netns)
79 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
82 mutex_lock(&rdev->devlist_mtx);
83 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
94 mutex_unlock(&rdev->devlist_mtx);
102 return ERR_PTR(-ENODEV);
105 static struct cfg80211_registered_device *
106 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
108 struct cfg80211_registered_device *rdev = NULL, *tmp;
109 struct net_device *netdev;
111 assert_cfg80211_lock();
113 if (!attrs[NL80211_ATTR_WIPHY] &&
114 !attrs[NL80211_ATTR_IFINDEX] &&
115 !attrs[NL80211_ATTR_WDEV])
116 return ERR_PTR(-EINVAL);
118 if (attrs[NL80211_ATTR_WIPHY])
119 rdev = cfg80211_rdev_by_wiphy_idx(
120 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
122 if (attrs[NL80211_ATTR_WDEV]) {
123 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
124 struct wireless_dev *wdev;
127 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
129 /* make sure wdev exists */
130 mutex_lock(&tmp->devlist_mtx);
131 list_for_each_entry(wdev, &tmp->wdev_list, list) {
132 if (wdev->identifier != (u32)wdev_id)
137 mutex_unlock(&tmp->devlist_mtx);
142 if (rdev && tmp != rdev)
143 return ERR_PTR(-EINVAL);
148 if (attrs[NL80211_ATTR_IFINDEX]) {
149 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
150 netdev = dev_get_by_index(netns, ifindex);
152 if (netdev->ieee80211_ptr)
154 netdev->ieee80211_ptr->wiphy);
160 /* not wireless device -- return error */
162 return ERR_PTR(-EINVAL);
164 /* mismatch -- return error */
165 if (rdev && tmp != rdev)
166 return ERR_PTR(-EINVAL);
173 return ERR_PTR(-ENODEV);
175 if (netns != wiphy_net(&rdev->wiphy))
176 return ERR_PTR(-ENODEV);
182 * This function returns a pointer to the driver
183 * that the genl_info item that is passed refers to.
184 * If successful, it returns non-NULL and also locks
185 * the driver's mutex!
187 * This means that you need to call cfg80211_unlock_rdev()
188 * before being allowed to acquire &cfg80211_mutex!
190 * This is necessary because we need to lock the global
191 * mutex to get an item off the list safely, and then
192 * we lock the rdev mutex so it doesn't go away under us.
194 * We don't want to keep cfg80211_mutex locked
195 * for all the time in order to allow requests on
196 * other interfaces to go through at the same time.
198 * The result of this can be a PTR_ERR and hence must
199 * be checked with IS_ERR() for errors.
201 static struct cfg80211_registered_device *
202 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
204 struct cfg80211_registered_device *rdev;
206 mutex_lock(&cfg80211_mutex);
207 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
209 /* if it is not an error we grab the lock on
210 * it to assure it won't be going away while
211 * we operate on it */
213 mutex_lock(&rdev->mtx);
215 mutex_unlock(&cfg80211_mutex);
220 /* policy for the attributes */
221 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
222 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
225 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
227 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
229 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
230 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
233 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
234 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
236 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
239 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
240 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
243 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
244 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
246 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
247 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
248 .len = WLAN_MAX_KEY_LEN },
249 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
250 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
251 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
252 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
253 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
255 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
256 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
257 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
258 .len = IEEE80211_MAX_DATA_LEN },
259 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_DATA_LEN },
261 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
262 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
263 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
264 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
265 .len = NL80211_MAX_SUPP_RATES },
266 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
267 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
268 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
269 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
270 .len = IEEE80211_MAX_MESH_ID_LEN },
271 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
273 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
274 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
276 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
277 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
280 .len = NL80211_MAX_SUPP_RATES },
281 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
283 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
286 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
288 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
289 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
290 .len = IEEE80211_MAX_DATA_LEN },
291 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
292 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
294 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
295 .len = IEEE80211_MAX_SSID_LEN },
296 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
297 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
298 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
299 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
301 [NL80211_ATTR_STA_FLAGS2] = {
302 .len = sizeof(struct nl80211_sta_flag_update),
304 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
305 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
306 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
307 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
308 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
309 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
310 [NL80211_ATTR_PID] = { .type = NLA_U32 },
311 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
312 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
313 .len = WLAN_PMKID_LEN },
314 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
315 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
316 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
317 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
318 .len = IEEE80211_MAX_DATA_LEN },
319 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
320 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
321 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
322 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
323 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
324 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
325 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
326 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
327 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
328 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
329 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
330 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
331 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
332 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
333 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
334 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
335 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
336 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
337 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
338 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
339 .len = IEEE80211_MAX_DATA_LEN },
340 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
341 .len = IEEE80211_MAX_DATA_LEN },
342 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
343 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
344 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
345 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
346 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
350 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
351 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
352 .len = IEEE80211_MAX_DATA_LEN },
353 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
354 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
355 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
356 .len = NL80211_HT_CAPABILITY_LEN
358 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
359 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
360 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
361 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
362 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
363 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
364 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
365 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
366 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
367 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
368 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
369 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
372 /* policy for the key attributes */
373 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
374 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
375 [NL80211_KEY_IDX] = { .type = NLA_U8 },
376 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
377 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
378 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
379 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
380 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
381 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
384 /* policy for the key default flags */
385 static const struct nla_policy
386 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
387 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
388 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
391 /* policy for WoWLAN attributes */
392 static const struct nla_policy
393 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
394 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
395 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
396 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
397 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
398 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
400 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
401 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
404 /* policy for GTK rekey offload attributes */
405 static const struct nla_policy
406 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
407 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
408 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
409 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
412 static const struct nla_policy
413 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
414 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
415 .len = IEEE80211_MAX_SSID_LEN },
416 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
419 /* ifidx get helper */
420 static int nl80211_get_ifidx(struct netlink_callback *cb)
424 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
425 nl80211_fam.attrbuf, nl80211_fam.maxattr,
430 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
433 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
439 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
440 struct netlink_callback *cb,
441 struct cfg80211_registered_device **rdev,
442 struct net_device **dev)
444 int ifidx = cb->args[0];
448 ifidx = nl80211_get_ifidx(cb);
456 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
462 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
464 err = PTR_ERR(*rdev);
474 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
476 cfg80211_unlock_rdev(rdev);
481 static bool is_valid_ie_attr(const struct nlattr *attr)
489 pos = nla_data(attr);
510 /* message building helper */
511 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
514 /* since there is no private header just add the generic one */
515 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
518 static int nl80211_msg_put_channel(struct sk_buff *msg,
519 struct ieee80211_channel *chan)
521 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
523 goto nla_put_failure;
525 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
526 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
527 goto nla_put_failure;
528 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
529 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
530 goto nla_put_failure;
531 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
532 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
533 goto nla_put_failure;
534 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
535 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
536 goto nla_put_failure;
538 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
539 DBM_TO_MBM(chan->max_power)))
540 goto nla_put_failure;
548 /* netlink command implementations */
555 bool def_uni, def_multi;
558 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
560 struct nlattr *tb[NL80211_KEY_MAX + 1];
561 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
566 k->def = !!tb[NL80211_KEY_DEFAULT];
567 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
576 if (tb[NL80211_KEY_IDX])
577 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
579 if (tb[NL80211_KEY_DATA]) {
580 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
581 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
584 if (tb[NL80211_KEY_SEQ]) {
585 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
586 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
589 if (tb[NL80211_KEY_CIPHER])
590 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
592 if (tb[NL80211_KEY_TYPE]) {
593 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
594 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
598 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
599 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
600 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
601 tb[NL80211_KEY_DEFAULT_TYPES],
602 nl80211_key_default_policy);
606 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
607 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
613 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
615 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
616 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
617 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
620 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
621 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
622 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
625 if (info->attrs[NL80211_ATTR_KEY_IDX])
626 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
628 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
629 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
631 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
632 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
641 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
642 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
643 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
647 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
648 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
649 int err = nla_parse_nested(
650 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
651 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
652 nl80211_key_default_policy);
656 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
657 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
663 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
667 memset(k, 0, sizeof(*k));
671 if (info->attrs[NL80211_ATTR_KEY])
672 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
674 err = nl80211_parse_key_old(info, k);
679 if (k->def && k->defmgmt)
683 if (k->def_uni || !k->def_multi)
689 if (k->idx < 4 || k->idx > 5)
692 if (k->idx < 0 || k->idx > 3)
695 if (k->idx < 0 || k->idx > 5)
703 static struct cfg80211_cached_keys *
704 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
705 struct nlattr *keys, bool *no_ht)
707 struct key_parse parse;
709 struct cfg80211_cached_keys *result;
710 int rem, err, def = 0;
712 result = kzalloc(sizeof(*result), GFP_KERNEL);
714 return ERR_PTR(-ENOMEM);
717 result->defmgmt = -1;
719 nla_for_each_nested(key, keys, rem) {
720 memset(&parse, 0, sizeof(parse));
723 err = nl80211_parse_key_new(key, &parse);
729 if (parse.idx < 0 || parse.idx > 4)
735 result->def = parse.idx;
736 if (!parse.def_uni || !parse.def_multi)
738 } else if (parse.defmgmt)
740 err = cfg80211_validate_key_settings(rdev, &parse.p,
741 parse.idx, false, NULL);
744 result->params[parse.idx].cipher = parse.p.cipher;
745 result->params[parse.idx].key_len = parse.p.key_len;
746 result->params[parse.idx].key = result->data[parse.idx];
747 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
749 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
750 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
762 static int nl80211_key_allowed(struct wireless_dev *wdev)
764 ASSERT_WDEV_LOCK(wdev);
766 switch (wdev->iftype) {
767 case NL80211_IFTYPE_AP:
768 case NL80211_IFTYPE_AP_VLAN:
769 case NL80211_IFTYPE_P2P_GO:
770 case NL80211_IFTYPE_MESH_POINT:
772 case NL80211_IFTYPE_ADHOC:
773 if (!wdev->current_bss)
776 case NL80211_IFTYPE_STATION:
777 case NL80211_IFTYPE_P2P_CLIENT:
778 if (wdev->sme_state != CFG80211_SME_CONNECTED)
788 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
790 struct nlattr *nl_modes = nla_nest_start(msg, attr);
794 goto nla_put_failure;
798 if ((ifmodes & 1) && nla_put_flag(msg, i))
799 goto nla_put_failure;
804 nla_nest_end(msg, nl_modes);
811 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
814 struct nlattr *nl_combis;
817 nl_combis = nla_nest_start(msg,
818 NL80211_ATTR_INTERFACE_COMBINATIONS);
820 goto nla_put_failure;
822 for (i = 0; i < wiphy->n_iface_combinations; i++) {
823 const struct ieee80211_iface_combination *c;
824 struct nlattr *nl_combi, *nl_limits;
826 c = &wiphy->iface_combinations[i];
828 nl_combi = nla_nest_start(msg, i + 1);
830 goto nla_put_failure;
832 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
834 goto nla_put_failure;
836 for (j = 0; j < c->n_limits; j++) {
837 struct nlattr *nl_limit;
839 nl_limit = nla_nest_start(msg, j + 1);
841 goto nla_put_failure;
842 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
844 goto nla_put_failure;
845 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
847 goto nla_put_failure;
848 nla_nest_end(msg, nl_limit);
851 nla_nest_end(msg, nl_limits);
853 if (c->beacon_int_infra_match &&
854 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
855 goto nla_put_failure;
856 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
857 c->num_different_channels) ||
858 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
860 goto nla_put_failure;
861 if (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
862 c->radar_detect_widths))
863 goto nla_put_failure;
865 nla_nest_end(msg, nl_combi);
868 nla_nest_end(msg, nl_combis);
875 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
876 struct cfg80211_registered_device *dev)
879 struct nlattr *nl_bands, *nl_band;
880 struct nlattr *nl_freqs, *nl_freq;
881 struct nlattr *nl_rates, *nl_rate;
882 struct nlattr *nl_cmds;
883 enum ieee80211_band band;
884 struct ieee80211_channel *chan;
885 struct ieee80211_rate *rate;
887 const struct ieee80211_txrx_stypes *mgmt_stypes =
888 dev->wiphy.mgmt_stypes;
890 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
894 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
895 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
896 nla_put_u32(msg, NL80211_ATTR_GENERATION,
897 cfg80211_rdev_list_generation) ||
898 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
899 dev->wiphy.retry_short) ||
900 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
901 dev->wiphy.retry_long) ||
902 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
903 dev->wiphy.frag_threshold) ||
904 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
905 dev->wiphy.rts_threshold) ||
906 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
907 dev->wiphy.coverage_class) ||
908 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
909 dev->wiphy.max_scan_ssids) ||
910 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
911 dev->wiphy.max_sched_scan_ssids) ||
912 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
913 dev->wiphy.max_scan_ie_len) ||
914 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
915 dev->wiphy.max_sched_scan_ie_len) ||
916 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
917 dev->wiphy.max_match_sets))
918 goto nla_put_failure;
920 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
921 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
922 goto nla_put_failure;
923 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
924 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
925 goto nla_put_failure;
926 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
927 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
928 goto nla_put_failure;
929 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
930 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
931 goto nla_put_failure;
932 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
933 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
934 goto nla_put_failure;
935 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
936 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
937 goto nla_put_failure;
939 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
940 sizeof(u32) * dev->wiphy.n_cipher_suites,
941 dev->wiphy.cipher_suites))
942 goto nla_put_failure;
944 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
945 dev->wiphy.max_num_pmkids))
946 goto nla_put_failure;
948 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
949 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
950 goto nla_put_failure;
952 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
953 dev->wiphy.available_antennas_tx) ||
954 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
955 dev->wiphy.available_antennas_rx))
956 goto nla_put_failure;
958 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
959 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
960 dev->wiphy.probe_resp_offload))
961 goto nla_put_failure;
963 if ((dev->wiphy.available_antennas_tx ||
964 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
965 u32 tx_ant = 0, rx_ant = 0;
967 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
969 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
971 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
973 goto nla_put_failure;
977 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
978 dev->wiphy.interface_modes))
979 goto nla_put_failure;
981 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
983 goto nla_put_failure;
985 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
986 if (!dev->wiphy.bands[band])
989 nl_band = nla_nest_start(msg, band);
991 goto nla_put_failure;
994 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
995 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
996 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
997 &dev->wiphy.bands[band]->ht_cap.mcs) ||
998 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
999 dev->wiphy.bands[band]->ht_cap.cap) ||
1000 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1001 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
1002 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1003 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
1004 goto nla_put_failure;
1007 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1008 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1009 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1010 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1011 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1012 dev->wiphy.bands[band]->vht_cap.cap)))
1013 goto nla_put_failure;
1015 /* add frequencies */
1016 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1018 goto nla_put_failure;
1020 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1021 nl_freq = nla_nest_start(msg, i);
1023 goto nla_put_failure;
1025 chan = &dev->wiphy.bands[band]->channels[i];
1027 if (nl80211_msg_put_channel(msg, chan))
1028 goto nla_put_failure;
1030 nla_nest_end(msg, nl_freq);
1033 nla_nest_end(msg, nl_freqs);
1036 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1038 goto nla_put_failure;
1040 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1041 nl_rate = nla_nest_start(msg, i);
1043 goto nla_put_failure;
1045 rate = &dev->wiphy.bands[band]->bitrates[i];
1046 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1048 goto nla_put_failure;
1049 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1051 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1052 goto nla_put_failure;
1054 nla_nest_end(msg, nl_rate);
1057 nla_nest_end(msg, nl_rates);
1059 nla_nest_end(msg, nl_band);
1061 nla_nest_end(msg, nl_bands);
1063 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1065 goto nla_put_failure;
1068 #define CMD(op, n) \
1070 if (dev->ops->op) { \
1072 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1073 goto nla_put_failure; \
1077 CMD(add_virtual_intf, NEW_INTERFACE);
1078 CMD(change_virtual_intf, SET_INTERFACE);
1079 CMD(add_key, NEW_KEY);
1080 CMD(start_ap, START_AP);
1081 CMD(add_station, NEW_STATION);
1082 CMD(add_mpath, NEW_MPATH);
1083 CMD(update_mesh_config, SET_MESH_CONFIG);
1084 CMD(change_bss, SET_BSS);
1085 CMD(auth, AUTHENTICATE);
1086 CMD(assoc, ASSOCIATE);
1087 CMD(deauth, DEAUTHENTICATE);
1088 CMD(disassoc, DISASSOCIATE);
1089 CMD(join_ibss, JOIN_IBSS);
1090 CMD(join_mesh, JOIN_MESH);
1091 CMD(set_pmksa, SET_PMKSA);
1092 CMD(del_pmksa, DEL_PMKSA);
1093 CMD(flush_pmksa, FLUSH_PMKSA);
1094 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1095 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1096 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1097 CMD(mgmt_tx, FRAME);
1098 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1099 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1101 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1102 goto nla_put_failure;
1104 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1105 dev->ops->join_mesh) {
1107 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1108 goto nla_put_failure;
1110 CMD(set_wds_peer, SET_WDS_PEER);
1111 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1112 CMD(tdls_mgmt, TDLS_MGMT);
1113 CMD(tdls_oper, TDLS_OPER);
1115 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1116 CMD(sched_scan_start, START_SCHED_SCAN);
1117 CMD(probe_client, PROBE_CLIENT);
1118 CMD(set_noack_map, SET_NOACK_MAP);
1119 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1121 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1122 goto nla_put_failure;
1124 CMD(start_p2p_device, START_P2P_DEVICE);
1125 CMD(set_mcast_rate, SET_MCAST_RATE);
1127 #ifdef CONFIG_NL80211_TESTMODE
1128 CMD(testmode_cmd, TESTMODE);
1133 if (dev->ops->connect || dev->ops->auth) {
1135 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1136 goto nla_put_failure;
1139 if (dev->ops->disconnect || dev->ops->deauth) {
1141 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1142 goto nla_put_failure;
1145 nla_nest_end(msg, nl_cmds);
1147 if (dev->ops->remain_on_channel &&
1148 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1149 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1150 dev->wiphy.max_remain_on_channel_duration))
1151 goto nla_put_failure;
1153 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1154 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1155 goto nla_put_failure;
1159 struct nlattr *nl_ftypes, *nl_ifs;
1160 enum nl80211_iftype ift;
1162 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1164 goto nla_put_failure;
1166 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1167 nl_ftypes = nla_nest_start(msg, ift);
1169 goto nla_put_failure;
1171 stypes = mgmt_stypes[ift].tx;
1174 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1175 (i << 4) | IEEE80211_FTYPE_MGMT))
1176 goto nla_put_failure;
1180 nla_nest_end(msg, nl_ftypes);
1183 nla_nest_end(msg, nl_ifs);
1185 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1187 goto nla_put_failure;
1189 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1190 nl_ftypes = nla_nest_start(msg, ift);
1192 goto nla_put_failure;
1194 stypes = mgmt_stypes[ift].rx;
1197 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1198 (i << 4) | IEEE80211_FTYPE_MGMT))
1199 goto nla_put_failure;
1203 nla_nest_end(msg, nl_ftypes);
1205 nla_nest_end(msg, nl_ifs);
1209 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1210 struct nlattr *nl_wowlan;
1212 nl_wowlan = nla_nest_start(msg,
1213 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1215 goto nla_put_failure;
1217 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1218 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1219 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1220 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1221 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1222 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1223 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1224 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1225 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1226 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1227 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1228 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1229 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1230 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1231 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1232 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1233 goto nla_put_failure;
1234 if (dev->wiphy.wowlan.n_patterns) {
1235 struct nl80211_wowlan_pattern_support pat = {
1236 .max_patterns = dev->wiphy.wowlan.n_patterns,
1238 dev->wiphy.wowlan.pattern_min_len,
1240 dev->wiphy.wowlan.pattern_max_len,
1242 dev->wiphy.wowlan.max_pkt_offset,
1244 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1246 goto nla_put_failure;
1249 nla_nest_end(msg, nl_wowlan);
1253 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1254 dev->wiphy.software_iftypes))
1255 goto nla_put_failure;
1257 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1258 goto nla_put_failure;
1260 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1261 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1262 dev->wiphy.ap_sme_capa))
1263 goto nla_put_failure;
1265 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1266 dev->wiphy.features))
1267 goto nla_put_failure;
1269 if (dev->wiphy.ht_capa_mod_mask &&
1270 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1271 sizeof(*dev->wiphy.ht_capa_mod_mask),
1272 dev->wiphy.ht_capa_mod_mask))
1273 goto nla_put_failure;
1275 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1276 dev->wiphy.max_acl_mac_addrs &&
1277 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1278 dev->wiphy.max_acl_mac_addrs))
1279 goto nla_put_failure;
1281 return genlmsg_end(msg, hdr);
1284 genlmsg_cancel(msg, hdr);
1288 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1291 int start = cb->args[0];
1292 struct cfg80211_registered_device *dev;
1294 mutex_lock(&cfg80211_mutex);
1295 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1296 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1300 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1301 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1307 mutex_unlock(&cfg80211_mutex);
1314 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1316 struct sk_buff *msg;
1317 struct cfg80211_registered_device *dev = info->user_ptr[0];
1319 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1323 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1328 return genlmsg_reply(msg, info);
1331 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1332 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1333 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1334 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1335 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1336 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1339 static int parse_txq_params(struct nlattr *tb[],
1340 struct ieee80211_txq_params *txq_params)
1342 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1343 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1344 !tb[NL80211_TXQ_ATTR_AIFS])
1347 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1348 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1349 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1350 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1351 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1353 if (txq_params->ac >= NL80211_NUM_ACS)
1359 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1362 * You can only set the channel explicitly for WDS interfaces,
1363 * all others have their channel managed via their respective
1364 * "establish a connection" command (connect, join, ...)
1366 * For AP/GO and mesh mode, the channel can be set with the
1367 * channel userspace API, but is only stored and passed to the
1368 * low-level driver when the AP starts or the mesh is joined.
1369 * This is for backward compatibility, userspace can also give
1370 * the channel in the start-ap or join-mesh commands instead.
1372 * Monitors are special as they are normally slaved to
1373 * whatever else is going on, so they have their own special
1374 * operation to set the monitor channel if possible.
1377 wdev->iftype == NL80211_IFTYPE_AP ||
1378 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1379 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1380 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1383 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1384 struct genl_info *info,
1385 struct cfg80211_chan_def *chandef)
1389 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1392 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1394 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1395 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1396 chandef->center_freq1 = control_freq;
1397 chandef->center_freq2 = 0;
1399 /* Primary channel not allowed */
1400 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1403 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1404 enum nl80211_channel_type chantype;
1406 chantype = nla_get_u32(
1407 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1410 case NL80211_CHAN_NO_HT:
1411 case NL80211_CHAN_HT20:
1412 case NL80211_CHAN_HT40PLUS:
1413 case NL80211_CHAN_HT40MINUS:
1414 cfg80211_chandef_create(chandef, chandef->chan,
1420 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1422 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1423 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1424 chandef->center_freq1 =
1426 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1427 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1428 chandef->center_freq2 =
1430 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1433 if (!cfg80211_chandef_valid(chandef))
1436 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1437 IEEE80211_CHAN_DISABLED))
1443 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1444 struct wireless_dev *wdev,
1445 struct genl_info *info)
1447 struct cfg80211_chan_def chandef;
1449 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1452 iftype = wdev->iftype;
1454 if (!nl80211_can_set_dev_channel(wdev))
1457 result = nl80211_parse_chandef(rdev, info, &chandef);
1461 mutex_lock(&rdev->devlist_mtx);
1463 case NL80211_IFTYPE_AP:
1464 case NL80211_IFTYPE_P2P_GO:
1465 if (wdev->beacon_interval) {
1469 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1473 wdev->preset_chandef = chandef;
1476 case NL80211_IFTYPE_MESH_POINT:
1477 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1479 case NL80211_IFTYPE_MONITOR:
1480 result = cfg80211_set_monitor_channel(rdev, &chandef);
1485 mutex_unlock(&rdev->devlist_mtx);
1490 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1493 struct net_device *netdev = info->user_ptr[1];
1495 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1498 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1501 struct net_device *dev = info->user_ptr[1];
1502 struct wireless_dev *wdev = dev->ieee80211_ptr;
1505 if (!info->attrs[NL80211_ATTR_MAC])
1508 if (netif_running(dev))
1511 if (!rdev->ops->set_wds_peer)
1514 if (wdev->iftype != NL80211_IFTYPE_WDS)
1517 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1518 return rdev_set_wds_peer(rdev, dev, bssid);
1522 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1524 struct cfg80211_registered_device *rdev;
1525 struct net_device *netdev = NULL;
1526 struct wireless_dev *wdev;
1527 int result = 0, rem_txq_params = 0;
1528 struct nlattr *nl_txq_params;
1530 u8 retry_short = 0, retry_long = 0;
1531 u32 frag_threshold = 0, rts_threshold = 0;
1532 u8 coverage_class = 0;
1535 * Try to find the wiphy and netdev. Normally this
1536 * function shouldn't need the netdev, but this is
1537 * done for backward compatibility -- previously
1538 * setting the channel was done per wiphy, but now
1539 * it is per netdev. Previous userland like hostapd
1540 * also passed a netdev to set_wiphy, so that it is
1541 * possible to let that go to the right netdev!
1543 mutex_lock(&cfg80211_mutex);
1545 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1546 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1548 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1549 if (netdev && netdev->ieee80211_ptr) {
1550 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1551 mutex_lock(&rdev->mtx);
1557 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1560 mutex_unlock(&cfg80211_mutex);
1561 return PTR_ERR(rdev);
1567 mutex_lock(&rdev->mtx);
1569 wdev = netdev->ieee80211_ptr;
1572 * end workaround code, by now the rdev is available
1573 * and locked, and wdev may or may not be NULL.
1576 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1577 result = cfg80211_dev_rename(
1578 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1580 mutex_unlock(&cfg80211_mutex);
1585 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1586 struct ieee80211_txq_params txq_params;
1587 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1589 if (!rdev->ops->set_txq_params) {
1590 result = -EOPNOTSUPP;
1599 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1600 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1605 if (!netif_running(netdev)) {
1610 nla_for_each_nested(nl_txq_params,
1611 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1613 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1614 nla_data(nl_txq_params),
1615 nla_len(nl_txq_params),
1617 result = parse_txq_params(tb, &txq_params);
1621 result = rdev_set_txq_params(rdev, netdev,
1628 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1629 result = __nl80211_set_channel(rdev,
1630 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1636 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1637 struct wireless_dev *txp_wdev = wdev;
1638 enum nl80211_tx_power_setting type;
1641 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1644 if (!rdev->ops->set_tx_power) {
1645 result = -EOPNOTSUPP;
1649 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1650 type = nla_get_u32(info->attrs[idx]);
1652 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1653 (type != NL80211_TX_POWER_AUTOMATIC)) {
1658 if (type != NL80211_TX_POWER_AUTOMATIC) {
1659 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1660 mbm = nla_get_u32(info->attrs[idx]);
1663 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1668 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1669 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1671 if ((!rdev->wiphy.available_antennas_tx &&
1672 !rdev->wiphy.available_antennas_rx) ||
1673 !rdev->ops->set_antenna) {
1674 result = -EOPNOTSUPP;
1678 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1679 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1681 /* reject antenna configurations which don't match the
1682 * available antenna masks, except for the "all" mask */
1683 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1684 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1689 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1690 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1692 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1699 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1700 retry_short = nla_get_u8(
1701 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1702 if (retry_short == 0) {
1706 changed |= WIPHY_PARAM_RETRY_SHORT;
1709 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1710 retry_long = nla_get_u8(
1711 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1712 if (retry_long == 0) {
1716 changed |= WIPHY_PARAM_RETRY_LONG;
1719 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1720 frag_threshold = nla_get_u32(
1721 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1722 if (frag_threshold < 256) {
1726 if (frag_threshold != (u32) -1) {
1728 * Fragments (apart from the last one) are required to
1729 * have even length. Make the fragmentation code
1730 * simpler by stripping LSB should someone try to use
1731 * odd threshold value.
1733 frag_threshold &= ~0x1;
1735 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1738 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1739 rts_threshold = nla_get_u32(
1740 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1741 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1744 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1745 coverage_class = nla_get_u8(
1746 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1747 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1751 u8 old_retry_short, old_retry_long;
1752 u32 old_frag_threshold, old_rts_threshold;
1753 u8 old_coverage_class;
1755 if (!rdev->ops->set_wiphy_params) {
1756 result = -EOPNOTSUPP;
1760 old_retry_short = rdev->wiphy.retry_short;
1761 old_retry_long = rdev->wiphy.retry_long;
1762 old_frag_threshold = rdev->wiphy.frag_threshold;
1763 old_rts_threshold = rdev->wiphy.rts_threshold;
1764 old_coverage_class = rdev->wiphy.coverage_class;
1766 if (changed & WIPHY_PARAM_RETRY_SHORT)
1767 rdev->wiphy.retry_short = retry_short;
1768 if (changed & WIPHY_PARAM_RETRY_LONG)
1769 rdev->wiphy.retry_long = retry_long;
1770 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1771 rdev->wiphy.frag_threshold = frag_threshold;
1772 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1773 rdev->wiphy.rts_threshold = rts_threshold;
1774 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1775 rdev->wiphy.coverage_class = coverage_class;
1777 result = rdev_set_wiphy_params(rdev, changed);
1779 rdev->wiphy.retry_short = old_retry_short;
1780 rdev->wiphy.retry_long = old_retry_long;
1781 rdev->wiphy.frag_threshold = old_frag_threshold;
1782 rdev->wiphy.rts_threshold = old_rts_threshold;
1783 rdev->wiphy.coverage_class = old_coverage_class;
1788 mutex_unlock(&rdev->mtx);
1794 static inline u64 wdev_id(struct wireless_dev *wdev)
1796 return (u64)wdev->identifier |
1797 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1800 static int nl80211_send_chandef(struct sk_buff *msg,
1801 struct cfg80211_chan_def *chandef)
1803 WARN_ON(!cfg80211_chandef_valid(chandef));
1805 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1806 chandef->chan->center_freq))
1808 switch (chandef->width) {
1809 case NL80211_CHAN_WIDTH_20_NOHT:
1810 case NL80211_CHAN_WIDTH_20:
1811 case NL80211_CHAN_WIDTH_40:
1812 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1813 cfg80211_get_chandef_type(chandef)))
1819 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1821 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1823 if (chandef->center_freq2 &&
1824 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
1829 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1830 struct cfg80211_registered_device *rdev,
1831 struct wireless_dev *wdev)
1833 struct net_device *dev = wdev->netdev;
1836 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1841 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1842 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1843 goto nla_put_failure;
1845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1846 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1847 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1848 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1849 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1850 rdev->devlist_generation ^
1851 (cfg80211_rdev_list_generation << 2)))
1852 goto nla_put_failure;
1854 if (rdev->ops->get_channel) {
1856 struct cfg80211_chan_def chandef;
1858 ret = rdev_get_channel(rdev, wdev, &chandef);
1860 if (nl80211_send_chandef(msg, &chandef))
1861 goto nla_put_failure;
1865 if (wdev->ssid_len) {
1866 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1867 goto nla_put_failure;
1870 return genlmsg_end(msg, hdr);
1873 genlmsg_cancel(msg, hdr);
1877 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1881 int wp_start = cb->args[0];
1882 int if_start = cb->args[1];
1883 struct cfg80211_registered_device *rdev;
1884 struct wireless_dev *wdev;
1886 mutex_lock(&cfg80211_mutex);
1887 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1888 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1890 if (wp_idx < wp_start) {
1896 mutex_lock(&rdev->devlist_mtx);
1897 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1898 if (if_idx < if_start) {
1902 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1903 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1905 mutex_unlock(&rdev->devlist_mtx);
1910 mutex_unlock(&rdev->devlist_mtx);
1915 mutex_unlock(&cfg80211_mutex);
1917 cb->args[0] = wp_idx;
1918 cb->args[1] = if_idx;
1923 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1925 struct sk_buff *msg;
1926 struct cfg80211_registered_device *dev = info->user_ptr[0];
1927 struct wireless_dev *wdev = info->user_ptr[1];
1929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1933 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1939 return genlmsg_reply(msg, info);
1942 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1943 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1944 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1945 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1946 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1947 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1950 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1952 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1960 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1961 nla, mntr_flags_policy))
1964 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1966 *mntrflags |= (1<<flag);
1971 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1972 struct net_device *netdev, u8 use_4addr,
1973 enum nl80211_iftype iftype)
1976 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
1982 case NL80211_IFTYPE_AP_VLAN:
1983 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
1986 case NL80211_IFTYPE_STATION:
1987 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
1997 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
1999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2000 struct vif_params params;
2002 enum nl80211_iftype otype, ntype;
2003 struct net_device *dev = info->user_ptr[1];
2004 u32 _flags, *flags = NULL;
2005 bool change = false;
2007 memset(¶ms, 0, sizeof(params));
2009 otype = ntype = dev->ieee80211_ptr->iftype;
2011 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2012 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2015 if (ntype > NL80211_IFTYPE_MAX)
2019 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2020 struct wireless_dev *wdev = dev->ieee80211_ptr;
2022 if (ntype != NL80211_IFTYPE_MESH_POINT)
2024 if (netif_running(dev))
2028 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2029 IEEE80211_MAX_MESH_ID_LEN);
2030 wdev->mesh_id_up_len =
2031 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2032 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2033 wdev->mesh_id_up_len);
2037 if (info->attrs[NL80211_ATTR_4ADDR]) {
2038 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2040 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2044 params.use_4addr = -1;
2047 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2048 if (ntype != NL80211_IFTYPE_MONITOR)
2050 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2060 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2064 if (!err && params.use_4addr != -1)
2065 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2070 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2072 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2073 struct vif_params params;
2074 struct wireless_dev *wdev;
2075 struct sk_buff *msg;
2077 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2080 memset(¶ms, 0, sizeof(params));
2082 if (!info->attrs[NL80211_ATTR_IFNAME])
2085 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2086 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2087 if (type > NL80211_IFTYPE_MAX)
2091 if (!rdev->ops->add_virtual_intf ||
2092 !(rdev->wiphy.interface_modes & (1 << type)))
2095 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2096 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2098 if (!is_valid_ether_addr(params.macaddr))
2099 return -EADDRNOTAVAIL;
2102 if (info->attrs[NL80211_ATTR_4ADDR]) {
2103 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2104 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2113 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2114 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2116 wdev = rdev_add_virtual_intf(rdev,
2117 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2118 type, err ? NULL : &flags, ¶ms);
2121 return PTR_ERR(wdev);
2125 case NL80211_IFTYPE_MESH_POINT:
2126 if (!info->attrs[NL80211_ATTR_MESH_ID])
2129 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2130 IEEE80211_MAX_MESH_ID_LEN);
2131 wdev->mesh_id_up_len =
2132 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2133 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2134 wdev->mesh_id_up_len);
2137 case NL80211_IFTYPE_P2P_DEVICE:
2139 * P2P Device doesn't have a netdev, so doesn't go
2140 * through the netdev notifier and must be added here
2142 mutex_init(&wdev->mtx);
2143 INIT_LIST_HEAD(&wdev->event_list);
2144 spin_lock_init(&wdev->event_lock);
2145 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2146 spin_lock_init(&wdev->mgmt_registrations_lock);
2148 mutex_lock(&rdev->devlist_mtx);
2149 wdev->identifier = ++rdev->wdev_id;
2150 list_add_rcu(&wdev->list, &rdev->wdev_list);
2151 rdev->devlist_generation++;
2152 mutex_unlock(&rdev->devlist_mtx);
2158 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2164 return genlmsg_reply(msg, info);
2167 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2170 struct wireless_dev *wdev = info->user_ptr[1];
2172 if (!rdev->ops->del_virtual_intf)
2176 * If we remove a wireless device without a netdev then clear
2177 * user_ptr[1] so that nl80211_post_doit won't dereference it
2178 * to check if it needs to do dev_put(). Otherwise it crashes
2179 * since the wdev has been freed, unlike with a netdev where
2180 * we need the dev_put() for the netdev to really be freed.
2183 info->user_ptr[1] = NULL;
2185 return rdev_del_virtual_intf(rdev, wdev);
2188 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2191 struct net_device *dev = info->user_ptr[1];
2194 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2197 if (!rdev->ops->set_noack_map)
2200 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2202 return rdev_set_noack_map(rdev, dev, noack_map);
2205 struct get_key_cookie {
2206 struct sk_buff *msg;
2211 static void get_key_callback(void *c, struct key_params *params)
2214 struct get_key_cookie *cookie = c;
2217 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2218 params->key_len, params->key)) ||
2220 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2221 params->seq_len, params->seq)) ||
2223 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2225 goto nla_put_failure;
2227 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2229 goto nla_put_failure;
2232 nla_put(cookie->msg, NL80211_KEY_DATA,
2233 params->key_len, params->key)) ||
2235 nla_put(cookie->msg, NL80211_KEY_SEQ,
2236 params->seq_len, params->seq)) ||
2238 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2240 goto nla_put_failure;
2242 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2243 goto nla_put_failure;
2245 nla_nest_end(cookie->msg, key);
2252 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2256 struct net_device *dev = info->user_ptr[1];
2258 const u8 *mac_addr = NULL;
2260 struct get_key_cookie cookie = {
2264 struct sk_buff *msg;
2266 if (info->attrs[NL80211_ATTR_KEY_IDX])
2267 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2272 if (info->attrs[NL80211_ATTR_MAC])
2273 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2275 pairwise = !!mac_addr;
2276 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2277 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2278 if (kt >= NUM_NL80211_KEYTYPES)
2280 if (kt != NL80211_KEYTYPE_GROUP &&
2281 kt != NL80211_KEYTYPE_PAIRWISE)
2283 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2286 if (!rdev->ops->get_key)
2289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2293 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2294 NL80211_CMD_NEW_KEY);
2296 return PTR_ERR(hdr);
2299 cookie.idx = key_idx;
2301 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2302 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2303 goto nla_put_failure;
2305 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2306 goto nla_put_failure;
2308 if (pairwise && mac_addr &&
2309 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2312 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2319 goto nla_put_failure;
2321 genlmsg_end(msg, hdr);
2322 return genlmsg_reply(msg, info);
2331 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2334 struct key_parse key;
2336 struct net_device *dev = info->user_ptr[1];
2338 err = nl80211_parse_key(info, &key);
2345 /* only support setting default key */
2346 if (!key.def && !key.defmgmt)
2349 wdev_lock(dev->ieee80211_ptr);
2352 if (!rdev->ops->set_default_key) {
2357 err = nl80211_key_allowed(dev->ieee80211_ptr);
2361 err = rdev_set_default_key(rdev, dev, key.idx,
2362 key.def_uni, key.def_multi);
2367 #ifdef CONFIG_CFG80211_WEXT
2368 dev->ieee80211_ptr->wext.default_key = key.idx;
2371 if (key.def_uni || !key.def_multi) {
2376 if (!rdev->ops->set_default_mgmt_key) {
2381 err = nl80211_key_allowed(dev->ieee80211_ptr);
2385 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2389 #ifdef CONFIG_CFG80211_WEXT
2390 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2395 wdev_unlock(dev->ieee80211_ptr);
2400 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2402 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2404 struct net_device *dev = info->user_ptr[1];
2405 struct key_parse key;
2406 const u8 *mac_addr = NULL;
2408 err = nl80211_parse_key(info, &key);
2415 if (info->attrs[NL80211_ATTR_MAC])
2416 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2418 if (key.type == -1) {
2420 key.type = NL80211_KEYTYPE_PAIRWISE;
2422 key.type = NL80211_KEYTYPE_GROUP;
2426 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2427 key.type != NL80211_KEYTYPE_GROUP)
2430 if (!rdev->ops->add_key)
2433 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2434 key.type == NL80211_KEYTYPE_PAIRWISE,
2438 wdev_lock(dev->ieee80211_ptr);
2439 err = nl80211_key_allowed(dev->ieee80211_ptr);
2441 err = rdev_add_key(rdev, dev, key.idx,
2442 key.type == NL80211_KEYTYPE_PAIRWISE,
2444 wdev_unlock(dev->ieee80211_ptr);
2449 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2453 struct net_device *dev = info->user_ptr[1];
2454 u8 *mac_addr = NULL;
2455 struct key_parse key;
2457 err = nl80211_parse_key(info, &key);
2461 if (info->attrs[NL80211_ATTR_MAC])
2462 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2464 if (key.type == -1) {
2466 key.type = NL80211_KEYTYPE_PAIRWISE;
2468 key.type = NL80211_KEYTYPE_GROUP;
2472 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2473 key.type != NL80211_KEYTYPE_GROUP)
2476 if (!rdev->ops->del_key)
2479 wdev_lock(dev->ieee80211_ptr);
2480 err = nl80211_key_allowed(dev->ieee80211_ptr);
2482 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2483 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2487 err = rdev_del_key(rdev, dev, key.idx,
2488 key.type == NL80211_KEYTYPE_PAIRWISE,
2491 #ifdef CONFIG_CFG80211_WEXT
2493 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2494 dev->ieee80211_ptr->wext.default_key = -1;
2495 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2496 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2499 wdev_unlock(dev->ieee80211_ptr);
2504 /* This function returns an error or the number of nested attributes */
2505 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2507 struct nlattr *attr;
2508 int n_entries = 0, tmp;
2510 nla_for_each_nested(attr, nl_attr, tmp) {
2511 if (nla_len(attr) != ETH_ALEN)
2521 * This function parses ACL information and allocates memory for ACL data.
2522 * On successful return, the calling function is responsible to free the
2523 * ACL buffer returned by this function.
2525 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2526 struct genl_info *info)
2528 enum nl80211_acl_policy acl_policy;
2529 struct nlattr *attr;
2530 struct cfg80211_acl_data *acl;
2531 int i = 0, n_entries, tmp;
2533 if (!wiphy->max_acl_mac_addrs)
2534 return ERR_PTR(-EOPNOTSUPP);
2536 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2537 return ERR_PTR(-EINVAL);
2539 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2540 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2541 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2542 return ERR_PTR(-EINVAL);
2544 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2545 return ERR_PTR(-EINVAL);
2547 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2549 return ERR_PTR(n_entries);
2551 if (n_entries > wiphy->max_acl_mac_addrs)
2552 return ERR_PTR(-ENOTSUPP);
2554 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2557 return ERR_PTR(-ENOMEM);
2559 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2560 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2564 acl->n_acl_entries = n_entries;
2565 acl->acl_policy = acl_policy;
2570 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2572 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2573 struct net_device *dev = info->user_ptr[1];
2574 struct cfg80211_acl_data *acl;
2577 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2578 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2581 if (!dev->ieee80211_ptr->beacon_interval)
2584 acl = parse_acl_data(&rdev->wiphy, info);
2586 return PTR_ERR(acl);
2588 err = rdev_set_mac_acl(rdev, dev, acl);
2595 static int nl80211_parse_beacon(struct genl_info *info,
2596 struct cfg80211_beacon_data *bcn)
2598 bool haveinfo = false;
2600 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2601 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2602 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2603 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2606 memset(bcn, 0, sizeof(*bcn));
2608 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2609 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2610 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2616 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2617 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2619 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2626 if (info->attrs[NL80211_ATTR_IE]) {
2627 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2628 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2631 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2632 bcn->proberesp_ies =
2633 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2634 bcn->proberesp_ies_len =
2635 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2638 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2639 bcn->assocresp_ies =
2640 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2641 bcn->assocresp_ies_len =
2642 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2645 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2647 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2648 bcn->probe_resp_len =
2649 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2655 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2656 struct cfg80211_ap_settings *params)
2658 struct wireless_dev *wdev;
2661 mutex_lock(&rdev->devlist_mtx);
2663 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2664 if (wdev->iftype != NL80211_IFTYPE_AP &&
2665 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2668 if (!wdev->preset_chandef.chan)
2671 params->chandef = wdev->preset_chandef;
2676 mutex_unlock(&rdev->devlist_mtx);
2681 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2682 enum nl80211_auth_type auth_type,
2683 enum nl80211_commands cmd)
2685 if (auth_type > NL80211_AUTHTYPE_MAX)
2689 case NL80211_CMD_AUTHENTICATE:
2690 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2691 auth_type == NL80211_AUTHTYPE_SAE)
2694 case NL80211_CMD_CONNECT:
2695 case NL80211_CMD_START_AP:
2696 /* SAE not supported yet */
2697 if (auth_type == NL80211_AUTHTYPE_SAE)
2705 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2707 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2708 struct net_device *dev = info->user_ptr[1];
2709 struct wireless_dev *wdev = dev->ieee80211_ptr;
2710 struct cfg80211_ap_settings params;
2713 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2714 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2717 if (!rdev->ops->start_ap)
2720 if (wdev->beacon_interval)
2723 memset(¶ms, 0, sizeof(params));
2725 /* these are required for START_AP */
2726 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2727 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2728 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2731 err = nl80211_parse_beacon(info, ¶ms.beacon);
2735 params.beacon_interval =
2736 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2737 params.dtim_period =
2738 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2740 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2745 * In theory, some of these attributes should be required here
2746 * but since they were not used when the command was originally
2747 * added, keep them optional for old user space programs to let
2748 * them continue to work with drivers that do not need the
2749 * additional information -- drivers must check!
2751 if (info->attrs[NL80211_ATTR_SSID]) {
2752 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2754 nla_len(info->attrs[NL80211_ATTR_SSID]);
2755 if (params.ssid_len == 0 ||
2756 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2760 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2761 params.hidden_ssid = nla_get_u32(
2762 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2763 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2764 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2765 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2769 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2771 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2772 params.auth_type = nla_get_u32(
2773 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2774 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2775 NL80211_CMD_START_AP))
2778 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2780 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2781 NL80211_MAX_NR_CIPHER_SUITES);
2785 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2786 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2788 params.inactivity_timeout = nla_get_u16(
2789 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2792 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2793 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2795 params.p2p_ctwindow =
2796 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2797 if (params.p2p_ctwindow > 127)
2799 if (params.p2p_ctwindow != 0 &&
2800 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2804 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2807 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2809 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2812 params.p2p_opp_ps = tmp;
2813 if (params.p2p_opp_ps != 0 &&
2814 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2818 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2819 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
2822 } else if (wdev->preset_chandef.chan) {
2823 params.chandef = wdev->preset_chandef;
2824 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2827 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
2830 mutex_lock(&rdev->devlist_mtx);
2831 err = cfg80211_can_use_chan(rdev, wdev, params.chandef.chan,
2833 mutex_unlock(&rdev->devlist_mtx);
2838 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2839 params.acl = parse_acl_data(&rdev->wiphy, info);
2840 if (IS_ERR(params.acl))
2841 return PTR_ERR(params.acl);
2844 err = rdev_start_ap(rdev, dev, ¶ms);
2846 wdev->preset_chandef = params.chandef;
2847 wdev->beacon_interval = params.beacon_interval;
2848 wdev->channel = params.chandef.chan;
2849 wdev->ssid_len = params.ssid_len;
2850 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2858 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2861 struct net_device *dev = info->user_ptr[1];
2862 struct wireless_dev *wdev = dev->ieee80211_ptr;
2863 struct cfg80211_beacon_data params;
2866 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2867 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2870 if (!rdev->ops->change_beacon)
2873 if (!wdev->beacon_interval)
2876 err = nl80211_parse_beacon(info, ¶ms);
2880 return rdev_change_beacon(rdev, dev, ¶ms);
2883 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2886 struct net_device *dev = info->user_ptr[1];
2888 return cfg80211_stop_ap(rdev, dev);
2891 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2892 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2893 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2894 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2895 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2896 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2897 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2900 static int parse_station_flags(struct genl_info *info,
2901 enum nl80211_iftype iftype,
2902 struct station_parameters *params)
2904 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2909 * Try parsing the new attribute first so userspace
2910 * can specify both for older kernels.
2912 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2914 struct nl80211_sta_flag_update *sta_flags;
2916 sta_flags = nla_data(nla);
2917 params->sta_flags_mask = sta_flags->mask;
2918 params->sta_flags_set = sta_flags->set;
2919 if ((params->sta_flags_mask |
2920 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2925 /* if present, parse the old attribute */
2927 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2931 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2932 nla, sta_flags_policy))
2936 * Only allow certain flags for interface types so that
2937 * other attributes are silently ignored. Remember that
2938 * this is backward compatibility code with old userspace
2939 * and shouldn't be hit in other cases anyway.
2942 case NL80211_IFTYPE_AP:
2943 case NL80211_IFTYPE_AP_VLAN:
2944 case NL80211_IFTYPE_P2P_GO:
2945 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2946 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2947 BIT(NL80211_STA_FLAG_WME) |
2948 BIT(NL80211_STA_FLAG_MFP);
2950 case NL80211_IFTYPE_P2P_CLIENT:
2951 case NL80211_IFTYPE_STATION:
2952 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2953 BIT(NL80211_STA_FLAG_TDLS_PEER);
2955 case NL80211_IFTYPE_MESH_POINT:
2956 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2957 BIT(NL80211_STA_FLAG_MFP) |
2958 BIT(NL80211_STA_FLAG_AUTHORIZED);
2963 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2965 params->sta_flags_set |= (1<<flag);
2967 /* no longer support new API additions in old API */
2968 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
2976 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
2979 struct nlattr *rate;
2983 rate = nla_nest_start(msg, attr);
2987 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
2988 bitrate = cfg80211_calculate_bitrate(info);
2989 /* report 16-bit bitrate only if we can */
2990 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
2992 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
2994 if (bitrate_compat > 0 &&
2995 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
2998 if (info->flags & RATE_INFO_FLAGS_MCS) {
2999 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3001 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3002 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3004 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3005 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3007 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3008 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3010 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3012 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3013 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3015 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3016 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3018 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3019 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3021 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3022 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3024 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3025 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3029 nla_nest_end(msg, rate);
3033 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3035 struct cfg80211_registered_device *rdev,
3036 struct net_device *dev,
3037 const u8 *mac_addr, struct station_info *sinfo)
3040 struct nlattr *sinfoattr, *bss_param;
3042 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3046 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3047 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3048 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3049 goto nla_put_failure;
3051 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3053 goto nla_put_failure;
3054 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3055 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3056 sinfo->connected_time))
3057 goto nla_put_failure;
3058 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3059 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3060 sinfo->inactive_time))
3061 goto nla_put_failure;
3062 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3063 STATION_INFO_RX_BYTES64)) &&
3064 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3065 (u32)sinfo->rx_bytes))
3066 goto nla_put_failure;
3067 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3068 NL80211_STA_INFO_TX_BYTES64)) &&
3069 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3070 (u32)sinfo->tx_bytes))
3071 goto nla_put_failure;
3072 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3073 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3075 goto nla_put_failure;
3076 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3077 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3079 goto nla_put_failure;
3080 if ((sinfo->filled & STATION_INFO_LLID) &&
3081 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3082 goto nla_put_failure;
3083 if ((sinfo->filled & STATION_INFO_PLID) &&
3084 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3085 goto nla_put_failure;
3086 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3087 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3088 sinfo->plink_state))
3089 goto nla_put_failure;
3090 switch (rdev->wiphy.signal_type) {
3091 case CFG80211_SIGNAL_TYPE_MBM:
3092 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3093 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3095 goto nla_put_failure;
3096 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3097 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3099 goto nla_put_failure;
3104 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3105 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3106 NL80211_STA_INFO_TX_BITRATE))
3107 goto nla_put_failure;
3109 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3110 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3111 NL80211_STA_INFO_RX_BITRATE))
3112 goto nla_put_failure;
3114 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3115 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3117 goto nla_put_failure;
3118 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3119 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3121 goto nla_put_failure;
3122 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3123 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3125 goto nla_put_failure;
3126 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3127 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3129 goto nla_put_failure;
3130 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3131 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3132 sinfo->beacon_loss_count))
3133 goto nla_put_failure;
3134 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3135 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3137 goto nla_put_failure;
3138 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3139 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3141 goto nla_put_failure;
3142 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3143 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3145 goto nla_put_failure;
3146 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3147 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3149 goto nla_put_failure;
3151 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3152 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3153 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3154 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3155 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3156 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3157 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3158 sinfo->bss_param.dtim_period) ||
3159 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3160 sinfo->bss_param.beacon_interval))
3161 goto nla_put_failure;
3163 nla_nest_end(msg, bss_param);
3165 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3166 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3167 sizeof(struct nl80211_sta_flag_update),
3169 goto nla_put_failure;
3170 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3171 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3173 goto nla_put_failure;
3174 nla_nest_end(msg, sinfoattr);
3176 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3177 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3178 sinfo->assoc_req_ies))
3179 goto nla_put_failure;
3181 return genlmsg_end(msg, hdr);
3184 genlmsg_cancel(msg, hdr);
3188 static int nl80211_dump_station(struct sk_buff *skb,
3189 struct netlink_callback *cb)
3191 struct station_info sinfo;
3192 struct cfg80211_registered_device *dev;
3193 struct net_device *netdev;
3194 u8 mac_addr[ETH_ALEN];
3195 int sta_idx = cb->args[1];
3198 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3202 if (!dev->ops->dump_station) {
3208 memset(&sinfo, 0, sizeof(sinfo));
3209 err = rdev_dump_station(dev, netdev, sta_idx,
3216 if (nl80211_send_station(skb,
3217 NETLINK_CB(cb->skb).portid,
3218 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3219 dev, netdev, mac_addr,
3228 cb->args[1] = sta_idx;
3231 nl80211_finish_netdev_dump(dev);
3236 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3239 struct net_device *dev = info->user_ptr[1];
3240 struct station_info sinfo;
3241 struct sk_buff *msg;
3242 u8 *mac_addr = NULL;
3245 memset(&sinfo, 0, sizeof(sinfo));
3247 if (!info->attrs[NL80211_ATTR_MAC])
3250 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3252 if (!rdev->ops->get_station)
3255 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3259 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3263 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3264 rdev, dev, mac_addr, &sinfo) < 0) {
3269 return genlmsg_reply(msg, info);
3273 * Get vlan interface making sure it is running and on the right wiphy.
3275 static struct net_device *get_vlan(struct genl_info *info,
3276 struct cfg80211_registered_device *rdev)
3278 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3279 struct net_device *v;
3285 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3287 return ERR_PTR(-ENODEV);
3289 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3294 if (!netif_running(v)) {
3302 return ERR_PTR(ret);
3305 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3309 struct net_device *dev = info->user_ptr[1];
3310 struct station_parameters params;
3311 u8 *mac_addr = NULL;
3313 memset(¶ms, 0, sizeof(params));
3315 params.listen_interval = -1;
3316 params.plink_state = -1;
3318 if (info->attrs[NL80211_ATTR_STA_AID])
3321 if (!info->attrs[NL80211_ATTR_MAC])
3324 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3326 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3327 params.supported_rates =
3328 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3329 params.supported_rates_len =
3330 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3333 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL] ||
3334 info->attrs[NL80211_ATTR_HT_CAPABILITY])
3337 if (!rdev->ops->change_station)
3340 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3343 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3344 params.plink_action =
3345 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3347 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3348 params.plink_state =
3349 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3351 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3352 enum nl80211_mesh_power_mode pm = nla_get_u32(
3353 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3355 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3356 pm > NL80211_MESH_POWER_MAX)
3359 params.local_pm = pm;
3362 switch (dev->ieee80211_ptr->iftype) {
3363 case NL80211_IFTYPE_AP:
3364 case NL80211_IFTYPE_AP_VLAN:
3365 case NL80211_IFTYPE_P2P_GO:
3366 /* disallow mesh-specific things */
3367 if (params.plink_action)
3369 if (params.local_pm)
3372 /* TDLS can't be set, ... */
3373 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3376 * ... but don't bother the driver with it. This works around
3377 * a hostapd/wpa_supplicant issue -- it always includes the
3378 * TLDS_PEER flag in the mask even for AP mode.
3380 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3382 /* accept only the listed bits */
3383 if (params.sta_flags_mask &
3384 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3385 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3386 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3387 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3388 BIT(NL80211_STA_FLAG_WME) |
3389 BIT(NL80211_STA_FLAG_MFP)))
3392 /* but authenticated/associated only if driver handles it */
3393 if (!(rdev->wiphy.features &
3394 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3395 params.sta_flags_mask &
3396 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3397 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3400 /* reject other things that can't change */
3401 if (params.supported_rates)
3404 /* must be last in here for error handling */
3405 params.vlan = get_vlan(info, rdev);
3406 if (IS_ERR(params.vlan))
3407 return PTR_ERR(params.vlan);
3409 case NL80211_IFTYPE_P2P_CLIENT:
3410 case NL80211_IFTYPE_STATION:
3412 * Don't allow userspace to change the TDLS_PEER flag,
3413 * but silently ignore attempts to change it since we
3414 * don't have state here to verify that it doesn't try
3415 * to change the flag.
3417 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3419 case NL80211_IFTYPE_ADHOC:
3420 /* disallow things sta doesn't support */
3421 if (params.plink_action)
3423 if (params.local_pm)
3425 /* reject any changes other than AUTHORIZED */
3426 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3429 case NL80211_IFTYPE_MESH_POINT:
3430 /* disallow things mesh doesn't support */
3433 if (params.supported_rates)
3436 * No special handling for TDLS here -- the userspace
3437 * mesh code doesn't have this bug.
3439 if (params.sta_flags_mask &
3440 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3441 BIT(NL80211_STA_FLAG_MFP) |
3442 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3449 /* be aware of params.vlan when changing code here */
3451 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3454 dev_put(params.vlan);
3459 static struct nla_policy
3460 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3461 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3462 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3465 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3469 struct net_device *dev = info->user_ptr[1];
3470 struct station_parameters params;
3471 u8 *mac_addr = NULL;
3473 memset(¶ms, 0, sizeof(params));
3475 if (!info->attrs[NL80211_ATTR_MAC])
3478 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3481 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3484 if (!info->attrs[NL80211_ATTR_STA_AID])
3487 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3488 params.supported_rates =
3489 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3490 params.supported_rates_len =
3491 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3492 params.listen_interval =
3493 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3495 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3496 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3499 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3501 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3503 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3505 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3507 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3508 params.plink_action =
3509 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3511 if (!rdev->ops->add_station)
3514 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3517 switch (dev->ieee80211_ptr->iftype) {
3518 case NL80211_IFTYPE_AP:
3519 case NL80211_IFTYPE_AP_VLAN:
3520 case NL80211_IFTYPE_P2P_GO:
3521 /* parse WME attributes if sta is WME capable */
3522 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3523 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3524 info->attrs[NL80211_ATTR_STA_WME]) {
3525 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3528 nla = info->attrs[NL80211_ATTR_STA_WME];
3529 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3530 nl80211_sta_wme_policy);
3534 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3535 params.uapsd_queues =
3536 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3537 if (params.uapsd_queues &
3538 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3541 if (tb[NL80211_STA_WME_MAX_SP])
3543 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3546 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3549 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3551 /* TDLS peers cannot be added */
3552 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3554 /* but don't bother the driver with it */
3555 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3557 /* allow authenticated/associated only if driver handles it */
3558 if (!(rdev->wiphy.features &
3559 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3560 params.sta_flags_mask &
3561 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3562 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3565 /* must be last in here for error handling */
3566 params.vlan = get_vlan(info, rdev);
3567 if (IS_ERR(params.vlan))
3568 return PTR_ERR(params.vlan);
3570 case NL80211_IFTYPE_MESH_POINT:
3571 /* associated is disallowed */
3572 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3574 /* TDLS peers cannot be added */
3575 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3578 case NL80211_IFTYPE_STATION:
3579 /* associated is disallowed */
3580 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3582 /* Only TDLS peers can be added */
3583 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3585 /* Can only add if TDLS ... */
3586 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3588 /* ... with external setup is supported */
3589 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3596 /* be aware of params.vlan when changing code here */
3598 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3601 dev_put(params.vlan);
3605 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3607 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3608 struct net_device *dev = info->user_ptr[1];
3609 u8 *mac_addr = NULL;
3611 if (info->attrs[NL80211_ATTR_MAC])
3612 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3615 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3616 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3617 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3620 if (!rdev->ops->del_station)
3623 return rdev_del_station(rdev, dev, mac_addr);
3626 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3627 int flags, struct net_device *dev,
3628 u8 *dst, u8 *next_hop,
3629 struct mpath_info *pinfo)
3632 struct nlattr *pinfoattr;
3634 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3638 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3639 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3640 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3641 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3642 goto nla_put_failure;
3644 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3646 goto nla_put_failure;
3647 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3648 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3650 goto nla_put_failure;
3651 if (((pinfo->filled & MPATH_INFO_SN) &&
3652 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3653 ((pinfo->filled & MPATH_INFO_METRIC) &&
3654 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3656 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3657 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3659 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3660 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3662 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3663 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3664 pinfo->discovery_timeout)) ||
3665 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3666 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3667 pinfo->discovery_retries)))
3668 goto nla_put_failure;
3670 nla_nest_end(msg, pinfoattr);
3672 return genlmsg_end(msg, hdr);
3675 genlmsg_cancel(msg, hdr);
3679 static int nl80211_dump_mpath(struct sk_buff *skb,
3680 struct netlink_callback *cb)
3682 struct mpath_info pinfo;
3683 struct cfg80211_registered_device *dev;
3684 struct net_device *netdev;
3686 u8 next_hop[ETH_ALEN];
3687 int path_idx = cb->args[1];
3690 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3694 if (!dev->ops->dump_mpath) {
3699 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3705 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3712 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3713 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3714 netdev, dst, next_hop,
3723 cb->args[1] = path_idx;
3726 nl80211_finish_netdev_dump(dev);
3730 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3732 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3734 struct net_device *dev = info->user_ptr[1];
3735 struct mpath_info pinfo;
3736 struct sk_buff *msg;
3738 u8 next_hop[ETH_ALEN];
3740 memset(&pinfo, 0, sizeof(pinfo));
3742 if (!info->attrs[NL80211_ATTR_MAC])
3745 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3747 if (!rdev->ops->get_mpath)
3750 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3753 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3757 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3761 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3762 dev, dst, next_hop, &pinfo) < 0) {
3767 return genlmsg_reply(msg, info);
3770 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3773 struct net_device *dev = info->user_ptr[1];
3775 u8 *next_hop = NULL;
3777 if (!info->attrs[NL80211_ATTR_MAC])
3780 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3783 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3784 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3786 if (!rdev->ops->change_mpath)
3789 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3792 return rdev_change_mpath(rdev, dev, dst, next_hop);
3795 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3798 struct net_device *dev = info->user_ptr[1];
3800 u8 *next_hop = NULL;
3802 if (!info->attrs[NL80211_ATTR_MAC])
3805 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3808 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3809 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3811 if (!rdev->ops->add_mpath)
3814 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3817 return rdev_add_mpath(rdev, dev, dst, next_hop);
3820 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3823 struct net_device *dev = info->user_ptr[1];
3826 if (info->attrs[NL80211_ATTR_MAC])
3827 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3829 if (!rdev->ops->del_mpath)
3832 return rdev_del_mpath(rdev, dev, dst);
3835 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3838 struct net_device *dev = info->user_ptr[1];
3839 struct bss_parameters params;
3841 memset(¶ms, 0, sizeof(params));
3842 /* default to not changing parameters */
3843 params.use_cts_prot = -1;
3844 params.use_short_preamble = -1;
3845 params.use_short_slot_time = -1;
3846 params.ap_isolate = -1;
3847 params.ht_opmode = -1;
3848 params.p2p_ctwindow = -1;
3849 params.p2p_opp_ps = -1;
3851 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3852 params.use_cts_prot =
3853 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3854 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3855 params.use_short_preamble =
3856 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3857 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3858 params.use_short_slot_time =
3859 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3860 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3861 params.basic_rates =
3862 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3863 params.basic_rates_len =
3864 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3866 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3867 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3868 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3870 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
3872 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3873 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3875 params.p2p_ctwindow =
3876 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3877 if (params.p2p_ctwindow < 0)
3879 if (params.p2p_ctwindow != 0 &&
3880 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3884 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3887 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3889 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3892 params.p2p_opp_ps = tmp;
3893 if (params.p2p_opp_ps &&
3894 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3898 if (!rdev->ops->change_bss)
3901 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3902 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3905 return rdev_change_bss(rdev, dev, ¶ms);
3908 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
3909 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
3910 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
3911 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
3912 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
3913 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
3914 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
3917 static int parse_reg_rule(struct nlattr *tb[],
3918 struct ieee80211_reg_rule *reg_rule)
3920 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
3921 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
3923 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
3925 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
3927 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
3929 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
3931 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
3934 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
3936 freq_range->start_freq_khz =
3937 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
3938 freq_range->end_freq_khz =
3939 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
3940 freq_range->max_bandwidth_khz =
3941 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
3943 power_rule->max_eirp =
3944 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
3946 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
3947 power_rule->max_antenna_gain =
3948 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
3953 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
3957 enum nl80211_user_reg_hint_type user_reg_hint_type;
3960 * You should only get this when cfg80211 hasn't yet initialized
3961 * completely when built-in to the kernel right between the time
3962 * window between nl80211_init() and regulatory_init(), if that is
3965 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
3966 return -EINPROGRESS;
3968 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
3971 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
3973 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
3974 user_reg_hint_type =
3975 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
3977 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
3979 switch (user_reg_hint_type) {
3980 case NL80211_USER_REG_HINT_USER:
3981 case NL80211_USER_REG_HINT_CELL_BASE:
3987 r = regulatory_hint_user(data, user_reg_hint_type);
3992 static int nl80211_get_mesh_config(struct sk_buff *skb,
3993 struct genl_info *info)
3995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3996 struct net_device *dev = info->user_ptr[1];
3997 struct wireless_dev *wdev = dev->ieee80211_ptr;
3998 struct mesh_config cur_params;
4001 struct nlattr *pinfoattr;
4002 struct sk_buff *msg;
4004 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4007 if (!rdev->ops->get_mesh_config)
4011 /* If not connected, get default parameters */
4012 if (!wdev->mesh_id_len)
4013 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4015 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4021 /* Draw up a netlink message to send back */
4022 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4025 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4026 NL80211_CMD_GET_MESH_CONFIG);
4029 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4031 goto nla_put_failure;
4032 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4033 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4034 cur_params.dot11MeshRetryTimeout) ||
4035 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4036 cur_params.dot11MeshConfirmTimeout) ||
4037 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4038 cur_params.dot11MeshHoldingTimeout) ||
4039 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4040 cur_params.dot11MeshMaxPeerLinks) ||
4041 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4042 cur_params.dot11MeshMaxRetries) ||
4043 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4044 cur_params.dot11MeshTTL) ||
4045 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4046 cur_params.element_ttl) ||
4047 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4048 cur_params.auto_open_plinks) ||
4049 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4050 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4051 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4052 cur_params.dot11MeshHWMPmaxPREQretries) ||
4053 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4054 cur_params.path_refresh_time) ||
4055 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4056 cur_params.min_discovery_timeout) ||
4057 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4058 cur_params.dot11MeshHWMPactivePathTimeout) ||
4059 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4060 cur_params.dot11MeshHWMPpreqMinInterval) ||
4061 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4062 cur_params.dot11MeshHWMPperrMinInterval) ||
4063 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4064 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4065 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4066 cur_params.dot11MeshHWMPRootMode) ||
4067 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4068 cur_params.dot11MeshHWMPRannInterval) ||
4069 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4070 cur_params.dot11MeshGateAnnouncementProtocol) ||
4071 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4072 cur_params.dot11MeshForwarding) ||
4073 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4074 cur_params.rssi_threshold) ||
4075 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4076 cur_params.ht_opmode) ||
4077 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4078 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4079 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4080 cur_params.dot11MeshHWMProotInterval) ||
4081 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4082 cur_params.dot11MeshHWMPconfirmationInterval) ||
4083 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4084 cur_params.power_mode) ||
4085 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4086 cur_params.dot11MeshAwakeWindowDuration))
4087 goto nla_put_failure;
4088 nla_nest_end(msg, pinfoattr);
4089 genlmsg_end(msg, hdr);
4090 return genlmsg_reply(msg, info);
4093 genlmsg_cancel(msg, hdr);
4099 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4100 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4101 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4102 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4103 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4104 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4105 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4106 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4107 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4108 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4109 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4110 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4111 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4112 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4113 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4114 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4115 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4116 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4117 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4118 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4119 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4120 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4121 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4122 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4123 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4124 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4125 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4126 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4129 static const struct nla_policy
4130 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4131 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4132 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4133 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4134 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4135 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4136 .len = IEEE80211_MAX_DATA_LEN },
4137 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4140 static int nl80211_parse_mesh_config(struct genl_info *info,
4141 struct mesh_config *cfg,
4144 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4147 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4150 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4152 cfg->param = fn(tb[attr]); \
4153 mask |= (1 << (attr - 1)); \
4158 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4160 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4161 info->attrs[NL80211_ATTR_MESH_CONFIG],
4162 nl80211_meshconf_params_policy))
4165 /* This makes sure that there aren't more than 32 mesh config
4166 * parameters (otherwise our bitfield scheme would not work.) */
4167 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4169 /* Fill in the params struct */
4170 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4171 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4173 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4174 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4177 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4180 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4182 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4183 mask, NL80211_MESHCONF_MAX_RETRIES,
4185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4186 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4187 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4188 mask, NL80211_MESHCONF_ELEMENT_TTL,
4190 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4191 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4193 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4195 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4197 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4198 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4201 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4204 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4208 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4210 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4212 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4216 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4218 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4219 dot11MeshHWMPnetDiameterTraversalTime,
4221 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4223 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4224 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4226 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4227 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4230 dot11MeshGateAnnouncementProtocol, 0, 1,
4231 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4234 mask, NL80211_MESHCONF_FORWARDING,
4236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4237 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4240 mask, NL80211_MESHCONF_HT_OPMODE,
4242 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4244 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4246 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4247 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4249 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4250 dot11MeshHWMPconfirmationInterval,
4252 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4254 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4255 NL80211_MESH_POWER_ACTIVE,
4256 NL80211_MESH_POWER_MAX,
4257 mask, NL80211_MESHCONF_POWER_MODE,
4259 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4261 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4267 #undef FILL_IN_MESH_PARAM_IF_SET
4270 static int nl80211_parse_mesh_setup(struct genl_info *info,
4271 struct mesh_setup *setup)
4273 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4275 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4277 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4278 info->attrs[NL80211_ATTR_MESH_SETUP],
4279 nl80211_mesh_setup_params_policy))
4282 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4283 setup->sync_method =
4284 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4285 IEEE80211_SYNC_METHOD_VENDOR :
4286 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4288 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4289 setup->path_sel_proto =
4290 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4291 IEEE80211_PATH_PROTOCOL_VENDOR :
4292 IEEE80211_PATH_PROTOCOL_HWMP;
4294 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4295 setup->path_metric =
4296 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4297 IEEE80211_PATH_METRIC_VENDOR :
4298 IEEE80211_PATH_METRIC_AIRTIME;
4301 if (tb[NL80211_MESH_SETUP_IE]) {
4302 struct nlattr *ieattr =
4303 tb[NL80211_MESH_SETUP_IE];
4304 if (!is_valid_ie_attr(ieattr))
4306 setup->ie = nla_data(ieattr);
4307 setup->ie_len = nla_len(ieattr);
4309 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4310 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4315 static int nl80211_update_mesh_config(struct sk_buff *skb,
4316 struct genl_info *info)
4318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4319 struct net_device *dev = info->user_ptr[1];
4320 struct wireless_dev *wdev = dev->ieee80211_ptr;
4321 struct mesh_config cfg;
4325 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4328 if (!rdev->ops->update_mesh_config)
4331 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4336 if (!wdev->mesh_id_len)
4340 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4347 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4349 const struct ieee80211_regdomain *regdom;
4350 struct sk_buff *msg;
4352 struct nlattr *nl_reg_rules;
4356 mutex_lock(&cfg80211_mutex);
4358 if (!cfg80211_regdomain)
4361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4367 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4368 NL80211_CMD_GET_REG);
4372 if (reg_last_request_cell_base() &&
4373 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4374 NL80211_USER_REG_HINT_CELL_BASE))
4375 goto nla_put_failure;
4378 regdom = rcu_dereference(cfg80211_regdomain);
4380 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4381 (regdom->dfs_region &&
4382 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4383 goto nla_put_failure_rcu;
4385 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4387 goto nla_put_failure_rcu;
4389 for (i = 0; i < regdom->n_reg_rules; i++) {
4390 struct nlattr *nl_reg_rule;
4391 const struct ieee80211_reg_rule *reg_rule;
4392 const struct ieee80211_freq_range *freq_range;
4393 const struct ieee80211_power_rule *power_rule;
4395 reg_rule = ®dom->reg_rules[i];
4396 freq_range = ®_rule->freq_range;
4397 power_rule = ®_rule->power_rule;
4399 nl_reg_rule = nla_nest_start(msg, i);
4401 goto nla_put_failure_rcu;
4403 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4405 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4406 freq_range->start_freq_khz) ||
4407 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4408 freq_range->end_freq_khz) ||
4409 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4410 freq_range->max_bandwidth_khz) ||
4411 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4412 power_rule->max_antenna_gain) ||
4413 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4414 power_rule->max_eirp))
4415 goto nla_put_failure_rcu;
4417 nla_nest_end(msg, nl_reg_rule);
4421 nla_nest_end(msg, nl_reg_rules);
4423 genlmsg_end(msg, hdr);
4424 err = genlmsg_reply(msg, info);
4427 nla_put_failure_rcu:
4430 genlmsg_cancel(msg, hdr);
4435 mutex_unlock(&cfg80211_mutex);
4439 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4441 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4442 struct nlattr *nl_reg_rule;
4443 char *alpha2 = NULL;
4444 int rem_reg_rules = 0, r = 0;
4445 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4447 struct ieee80211_regdomain *rd = NULL;
4449 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4452 if (!info->attrs[NL80211_ATTR_REG_RULES])
4455 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4457 if (info->attrs[NL80211_ATTR_DFS_REGION])
4458 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4460 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4463 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4467 size_of_regd = sizeof(struct ieee80211_regdomain) +
4468 num_rules * sizeof(struct ieee80211_reg_rule);
4470 rd = kzalloc(size_of_regd, GFP_KERNEL);
4474 rd->n_reg_rules = num_rules;
4475 rd->alpha2[0] = alpha2[0];
4476 rd->alpha2[1] = alpha2[1];
4479 * Disable DFS master mode if the DFS region was
4480 * not supported or known on this kernel.
4482 if (reg_supported_dfs_region(dfs_region))
4483 rd->dfs_region = dfs_region;
4485 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4487 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4488 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4490 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4496 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4502 mutex_lock(&cfg80211_mutex);
4505 /* set_regdom took ownership */
4507 mutex_unlock(&cfg80211_mutex);
4514 static int validate_scan_freqs(struct nlattr *freqs)
4516 struct nlattr *attr1, *attr2;
4517 int n_channels = 0, tmp1, tmp2;
4519 nla_for_each_nested(attr1, freqs, tmp1) {
4522 * Some hardware has a limited channel list for
4523 * scanning, and it is pretty much nonsensical
4524 * to scan for a channel twice, so disallow that
4525 * and don't require drivers to check that the
4526 * channel list they get isn't longer than what
4527 * they can scan, as long as they can scan all
4528 * the channels they registered at once.
4530 nla_for_each_nested(attr2, freqs, tmp2)
4531 if (attr1 != attr2 &&
4532 nla_get_u32(attr1) == nla_get_u32(attr2))
4539 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4542 struct wireless_dev *wdev = info->user_ptr[1];
4543 struct cfg80211_scan_request *request;
4544 struct nlattr *attr;
4545 struct wiphy *wiphy;
4546 int err, tmp, n_ssids = 0, n_channels, i;
4549 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4552 wiphy = &rdev->wiphy;
4554 if (!rdev->ops->scan)
4560 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4561 n_channels = validate_scan_freqs(
4562 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4566 enum ieee80211_band band;
4569 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4570 if (wiphy->bands[band])
4571 n_channels += wiphy->bands[band]->n_channels;
4574 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4575 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4578 if (n_ssids > wiphy->max_scan_ssids)
4581 if (info->attrs[NL80211_ATTR_IE])
4582 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4586 if (ie_len > wiphy->max_scan_ie_len)
4589 request = kzalloc(sizeof(*request)
4590 + sizeof(*request->ssids) * n_ssids
4591 + sizeof(*request->channels) * n_channels
4592 + ie_len, GFP_KERNEL);
4597 request->ssids = (void *)&request->channels[n_channels];
4598 request->n_ssids = n_ssids;
4601 request->ie = (void *)(request->ssids + n_ssids);
4603 request->ie = (void *)(request->channels + n_channels);
4607 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4608 /* user specified, bail out if channel not found */
4609 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4610 struct ieee80211_channel *chan;
4612 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4619 /* ignore disabled channels */
4620 if (chan->flags & IEEE80211_CHAN_DISABLED)
4623 request->channels[i] = chan;
4627 enum ieee80211_band band;
4630 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4632 if (!wiphy->bands[band])
4634 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4635 struct ieee80211_channel *chan;
4637 chan = &wiphy->bands[band]->channels[j];
4639 if (chan->flags & IEEE80211_CHAN_DISABLED)
4642 request->channels[i] = chan;
4653 request->n_channels = i;
4656 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4657 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4658 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4662 request->ssids[i].ssid_len = nla_len(attr);
4663 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4668 if (info->attrs[NL80211_ATTR_IE]) {
4669 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4670 memcpy((void *)request->ie,
4671 nla_data(info->attrs[NL80211_ATTR_IE]),
4675 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4676 if (wiphy->bands[i])
4678 (1 << wiphy->bands[i]->n_bitrates) - 1;
4680 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4681 nla_for_each_nested(attr,
4682 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4684 enum ieee80211_band band = nla_type(attr);
4686 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4690 err = ieee80211_get_ratemask(wiphy->bands[band],
4693 &request->rates[band]);
4699 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4700 request->flags = nla_get_u32(
4701 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4702 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4703 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4704 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4705 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4712 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4714 request->wdev = wdev;
4715 request->wiphy = &rdev->wiphy;
4716 request->scan_start = jiffies;
4718 rdev->scan_req = request;
4719 err = rdev_scan(rdev, request);
4722 nl80211_send_scan_start(rdev, wdev);
4724 dev_hold(wdev->netdev);
4727 rdev->scan_req = NULL;
4734 static int nl80211_start_sched_scan(struct sk_buff *skb,
4735 struct genl_info *info)
4737 struct cfg80211_sched_scan_request *request;
4738 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4739 struct net_device *dev = info->user_ptr[1];
4740 struct nlattr *attr;
4741 struct wiphy *wiphy;
4742 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4744 enum ieee80211_band band;
4746 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4748 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4749 !rdev->ops->sched_scan_start)
4752 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4755 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4758 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4762 wiphy = &rdev->wiphy;
4764 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4765 n_channels = validate_scan_freqs(
4766 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4772 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4773 if (wiphy->bands[band])
4774 n_channels += wiphy->bands[band]->n_channels;
4777 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4778 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4782 if (n_ssids > wiphy->max_sched_scan_ssids)
4785 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4786 nla_for_each_nested(attr,
4787 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4791 if (n_match_sets > wiphy->max_match_sets)
4794 if (info->attrs[NL80211_ATTR_IE])
4795 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4799 if (ie_len > wiphy->max_sched_scan_ie_len)
4802 mutex_lock(&rdev->sched_scan_mtx);
4804 if (rdev->sched_scan_req) {
4809 request = kzalloc(sizeof(*request)
4810 + sizeof(*request->ssids) * n_ssids
4811 + sizeof(*request->match_sets) * n_match_sets
4812 + sizeof(*request->channels) * n_channels
4813 + ie_len, GFP_KERNEL);
4820 request->ssids = (void *)&request->channels[n_channels];
4821 request->n_ssids = n_ssids;
4824 request->ie = (void *)(request->ssids + n_ssids);
4826 request->ie = (void *)(request->channels + n_channels);
4831 request->match_sets = (void *)(request->ie + ie_len);
4832 else if (request->ssids)
4833 request->match_sets =
4834 (void *)(request->ssids + n_ssids);
4836 request->match_sets =
4837 (void *)(request->channels + n_channels);
4839 request->n_match_sets = n_match_sets;
4842 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4843 /* user specified, bail out if channel not found */
4844 nla_for_each_nested(attr,
4845 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4847 struct ieee80211_channel *chan;
4849 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4856 /* ignore disabled channels */
4857 if (chan->flags & IEEE80211_CHAN_DISABLED)
4860 request->channels[i] = chan;
4865 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4867 if (!wiphy->bands[band])
4869 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4870 struct ieee80211_channel *chan;
4872 chan = &wiphy->bands[band]->channels[j];
4874 if (chan->flags & IEEE80211_CHAN_DISABLED)
4877 request->channels[i] = chan;
4888 request->n_channels = i;
4891 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4892 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4894 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4898 request->ssids[i].ssid_len = nla_len(attr);
4899 memcpy(request->ssids[i].ssid, nla_data(attr),
4906 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
4907 nla_for_each_nested(attr,
4908 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4910 struct nlattr *ssid, *rssi;
4912 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
4913 nla_data(attr), nla_len(attr),
4914 nl80211_match_policy);
4915 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
4917 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
4921 memcpy(request->match_sets[i].ssid.ssid,
4922 nla_data(ssid), nla_len(ssid));
4923 request->match_sets[i].ssid.ssid_len =
4926 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
4928 request->rssi_thold = nla_get_u32(rssi);
4930 request->rssi_thold =
4931 NL80211_SCAN_RSSI_THOLD_OFF;
4936 if (info->attrs[NL80211_ATTR_IE]) {
4937 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4938 memcpy((void *)request->ie,
4939 nla_data(info->attrs[NL80211_ATTR_IE]),
4943 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4944 request->flags = nla_get_u32(
4945 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4946 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4947 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4948 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4949 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4956 request->wiphy = &rdev->wiphy;
4957 request->interval = interval;
4958 request->scan_start = jiffies;
4960 err = rdev_sched_scan_start(rdev, dev, request);
4962 rdev->sched_scan_req = request;
4963 nl80211_send_sched_scan(rdev, dev,
4964 NL80211_CMD_START_SCHED_SCAN);
4971 mutex_unlock(&rdev->sched_scan_mtx);
4975 static int nl80211_stop_sched_scan(struct sk_buff *skb,
4976 struct genl_info *info)
4978 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4981 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4982 !rdev->ops->sched_scan_stop)
4985 mutex_lock(&rdev->sched_scan_mtx);
4986 err = __cfg80211_stop_sched_scan(rdev, false);
4987 mutex_unlock(&rdev->sched_scan_mtx);
4992 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
4994 struct cfg80211_registered_device *rdev,
4995 struct wireless_dev *wdev,
4996 struct cfg80211_internal_bss *intbss)
4998 struct cfg80211_bss *res = &intbss->pub;
4999 const struct cfg80211_bss_ies *ies;
5004 ASSERT_WDEV_LOCK(wdev);
5006 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5007 NL80211_CMD_NEW_SCAN_RESULTS);
5011 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5013 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5014 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5015 goto nla_put_failure;
5017 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5019 goto nla_put_failure;
5020 if ((!is_zero_ether_addr(res->bssid) &&
5021 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5022 goto nla_put_failure;
5025 ies = rcu_dereference(res->ies);
5027 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5028 goto fail_unlock_rcu;
5030 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5031 ies->len, ies->data))
5032 goto fail_unlock_rcu;
5034 ies = rcu_dereference(res->beacon_ies);
5036 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5037 goto fail_unlock_rcu;
5038 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5039 ies->len, ies->data))
5040 goto fail_unlock_rcu;
5044 if (res->beacon_interval &&
5045 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5046 goto nla_put_failure;
5047 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5048 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5049 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5050 jiffies_to_msecs(jiffies - intbss->ts)))
5051 goto nla_put_failure;
5053 switch (rdev->wiphy.signal_type) {
5054 case CFG80211_SIGNAL_TYPE_MBM:
5055 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5056 goto nla_put_failure;
5058 case CFG80211_SIGNAL_TYPE_UNSPEC:
5059 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5060 goto nla_put_failure;
5066 switch (wdev->iftype) {
5067 case NL80211_IFTYPE_P2P_CLIENT:
5068 case NL80211_IFTYPE_STATION:
5069 if (intbss == wdev->current_bss &&
5070 nla_put_u32(msg, NL80211_BSS_STATUS,
5071 NL80211_BSS_STATUS_ASSOCIATED))
5072 goto nla_put_failure;
5074 case NL80211_IFTYPE_ADHOC:
5075 if (intbss == wdev->current_bss &&
5076 nla_put_u32(msg, NL80211_BSS_STATUS,
5077 NL80211_BSS_STATUS_IBSS_JOINED))
5078 goto nla_put_failure;
5084 nla_nest_end(msg, bss);
5086 return genlmsg_end(msg, hdr);
5091 genlmsg_cancel(msg, hdr);
5095 static int nl80211_dump_scan(struct sk_buff *skb,
5096 struct netlink_callback *cb)
5098 struct cfg80211_registered_device *rdev;
5099 struct net_device *dev;
5100 struct cfg80211_internal_bss *scan;
5101 struct wireless_dev *wdev;
5102 int start = cb->args[1], idx = 0;
5105 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5109 wdev = dev->ieee80211_ptr;
5112 spin_lock_bh(&rdev->bss_lock);
5113 cfg80211_bss_expire(rdev);
5115 cb->seq = rdev->bss_generation;
5117 list_for_each_entry(scan, &rdev->bss_list, list) {
5120 if (nl80211_send_bss(skb, cb,
5121 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5122 rdev, wdev, scan) < 0) {
5128 spin_unlock_bh(&rdev->bss_lock);
5132 nl80211_finish_netdev_dump(rdev);
5137 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5138 int flags, struct net_device *dev,
5139 struct survey_info *survey)
5142 struct nlattr *infoattr;
5144 hdr = nl80211hdr_put(msg, portid, seq, flags,
5145 NL80211_CMD_NEW_SURVEY_RESULTS);
5149 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5150 goto nla_put_failure;
5152 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5154 goto nla_put_failure;
5156 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5157 survey->channel->center_freq))
5158 goto nla_put_failure;
5160 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5161 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5162 goto nla_put_failure;
5163 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5164 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5165 goto nla_put_failure;
5166 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5167 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5168 survey->channel_time))
5169 goto nla_put_failure;
5170 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5171 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5172 survey->channel_time_busy))
5173 goto nla_put_failure;
5174 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5175 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5176 survey->channel_time_ext_busy))
5177 goto nla_put_failure;
5178 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5179 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5180 survey->channel_time_rx))
5181 goto nla_put_failure;
5182 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5183 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5184 survey->channel_time_tx))
5185 goto nla_put_failure;
5187 nla_nest_end(msg, infoattr);
5189 return genlmsg_end(msg, hdr);
5192 genlmsg_cancel(msg, hdr);
5196 static int nl80211_dump_survey(struct sk_buff *skb,
5197 struct netlink_callback *cb)
5199 struct survey_info survey;
5200 struct cfg80211_registered_device *dev;
5201 struct net_device *netdev;
5202 int survey_idx = cb->args[1];
5205 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5209 if (!dev->ops->dump_survey) {
5215 struct ieee80211_channel *chan;
5217 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
5223 /* Survey without a channel doesn't make sense */
5224 if (!survey.channel) {
5229 chan = ieee80211_get_channel(&dev->wiphy,
5230 survey.channel->center_freq);
5231 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5236 if (nl80211_send_survey(skb,
5237 NETLINK_CB(cb->skb).portid,
5238 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5246 cb->args[1] = survey_idx;
5249 nl80211_finish_netdev_dump(dev);
5253 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5255 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5256 NL80211_WPA_VERSION_2));
5259 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5261 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5262 struct net_device *dev = info->user_ptr[1];
5263 struct ieee80211_channel *chan;
5264 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5265 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5266 enum nl80211_auth_type auth_type;
5267 struct key_parse key;
5268 bool local_state_change;
5270 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5273 if (!info->attrs[NL80211_ATTR_MAC])
5276 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5279 if (!info->attrs[NL80211_ATTR_SSID])
5282 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5285 err = nl80211_parse_key(info, &key);
5290 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5292 if (!key.p.key || !key.p.key_len)
5294 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5295 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5296 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5297 key.p.key_len != WLAN_KEY_LEN_WEP104))
5309 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5310 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5319 if (!rdev->ops->auth)
5322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5326 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5327 chan = ieee80211_get_channel(&rdev->wiphy,
5328 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5329 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5332 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5333 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5335 if (info->attrs[NL80211_ATTR_IE]) {
5336 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5337 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5340 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5341 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5344 if (auth_type == NL80211_AUTHTYPE_SAE &&
5345 !info->attrs[NL80211_ATTR_SAE_DATA])
5348 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5349 if (auth_type != NL80211_AUTHTYPE_SAE)
5351 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5352 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5353 /* need to include at least Auth Transaction and Status Code */
5354 if (sae_data_len < 4)
5358 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5361 * Since we no longer track auth state, ignore
5362 * requests to only change local state.
5364 if (local_state_change)
5367 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5368 ssid, ssid_len, ie, ie_len,
5369 key.p.key, key.p.key_len, key.idx,
5370 sae_data, sae_data_len);
5373 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5374 struct genl_info *info,
5375 struct cfg80211_crypto_settings *settings,
5378 memset(settings, 0, sizeof(*settings));
5380 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5382 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5384 proto = nla_get_u16(
5385 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5386 settings->control_port_ethertype = cpu_to_be16(proto);
5387 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5390 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5391 settings->control_port_no_encrypt = true;
5393 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5395 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5399 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5400 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5401 settings->n_ciphers_pairwise = len / sizeof(u32);
5403 if (len % sizeof(u32))
5406 if (settings->n_ciphers_pairwise > cipher_limit)
5409 memcpy(settings->ciphers_pairwise, data, len);
5411 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5412 if (!cfg80211_supported_cipher_suite(
5414 settings->ciphers_pairwise[i]))
5418 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5419 settings->cipher_group =
5420 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5421 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5422 settings->cipher_group))
5426 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5427 settings->wpa_versions =
5428 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5429 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5433 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5437 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5438 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5439 settings->n_akm_suites = len / sizeof(u32);
5441 if (len % sizeof(u32))
5444 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5447 memcpy(settings->akm_suites, data, len);
5453 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5455 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5456 struct net_device *dev = info->user_ptr[1];
5457 struct cfg80211_crypto_settings crypto;
5458 struct ieee80211_channel *chan;
5459 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5460 int err, ssid_len, ie_len = 0;
5461 bool use_mfp = false;
5463 struct ieee80211_ht_cap *ht_capa = NULL;
5464 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5466 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5469 if (!info->attrs[NL80211_ATTR_MAC] ||
5470 !info->attrs[NL80211_ATTR_SSID] ||
5471 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5474 if (!rdev->ops->assoc)
5477 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5478 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5481 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5483 chan = ieee80211_get_channel(&rdev->wiphy,
5484 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5485 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5488 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5489 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5491 if (info->attrs[NL80211_ATTR_IE]) {
5492 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5493 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5496 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5497 enum nl80211_mfp mfp =
5498 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5499 if (mfp == NL80211_MFP_REQUIRED)
5501 else if (mfp != NL80211_MFP_NO)
5505 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5506 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5508 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5509 flags |= ASSOC_REQ_DISABLE_HT;
5511 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5513 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5515 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5518 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5521 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5523 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5524 ssid, ssid_len, ie, ie_len, use_mfp,
5525 &crypto, flags, ht_capa,
5531 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5534 struct net_device *dev = info->user_ptr[1];
5535 const u8 *ie = NULL, *bssid;
5538 bool local_state_change;
5540 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5543 if (!info->attrs[NL80211_ATTR_MAC])
5546 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5549 if (!rdev->ops->deauth)
5552 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5553 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5556 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5558 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5559 if (reason_code == 0) {
5560 /* Reason Code 0 is reserved */
5564 if (info->attrs[NL80211_ATTR_IE]) {
5565 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5566 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5569 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5571 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5572 local_state_change);
5575 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5578 struct net_device *dev = info->user_ptr[1];
5579 const u8 *ie = NULL, *bssid;
5582 bool local_state_change;
5584 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5587 if (!info->attrs[NL80211_ATTR_MAC])
5590 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5593 if (!rdev->ops->disassoc)
5596 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5597 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5600 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5602 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5603 if (reason_code == 0) {
5604 /* Reason Code 0 is reserved */
5608 if (info->attrs[NL80211_ATTR_IE]) {
5609 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5610 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5613 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5615 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5616 local_state_change);
5620 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5621 int mcast_rate[IEEE80211_NUM_BANDS],
5624 struct wiphy *wiphy = &rdev->wiphy;
5628 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5629 struct ieee80211_supported_band *sband;
5631 sband = wiphy->bands[band];
5635 for (i = 0; i < sband->n_bitrates; i++) {
5636 if (sband->bitrates[i].bitrate == rateval) {
5637 mcast_rate[band] = i + 1;
5647 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5650 struct net_device *dev = info->user_ptr[1];
5651 struct cfg80211_ibss_params ibss;
5652 struct wiphy *wiphy;
5653 struct cfg80211_cached_keys *connkeys = NULL;
5656 memset(&ibss, 0, sizeof(ibss));
5658 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5661 if (!info->attrs[NL80211_ATTR_SSID] ||
5662 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5665 ibss.beacon_interval = 100;
5667 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5668 ibss.beacon_interval =
5669 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5670 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5674 if (!rdev->ops->join_ibss)
5677 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5680 wiphy = &rdev->wiphy;
5682 if (info->attrs[NL80211_ATTR_MAC]) {
5683 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5685 if (!is_valid_ether_addr(ibss.bssid))
5688 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5689 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5691 if (info->attrs[NL80211_ATTR_IE]) {
5692 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5693 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5696 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5700 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
5703 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5705 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5706 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5709 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5710 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5712 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5714 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5716 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5717 struct ieee80211_supported_band *sband =
5718 wiphy->bands[ibss.chandef.chan->band];
5720 err = ieee80211_get_ratemask(sband, rates, n_rates,
5726 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5727 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5728 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5731 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5734 connkeys = nl80211_parse_connkeys(rdev,
5735 info->attrs[NL80211_ATTR_KEYS],
5737 if (IS_ERR(connkeys))
5738 return PTR_ERR(connkeys);
5740 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5748 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5750 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5756 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5759 struct net_device *dev = info->user_ptr[1];
5761 if (!rdev->ops->leave_ibss)
5764 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5767 return cfg80211_leave_ibss(rdev, dev, false);
5770 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5773 struct net_device *dev = info->user_ptr[1];
5774 int mcast_rate[IEEE80211_NUM_BANDS];
5778 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5779 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5782 if (!rdev->ops->set_mcast_rate)
5785 memset(mcast_rate, 0, sizeof(mcast_rate));
5787 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5790 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5791 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5794 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5800 #ifdef CONFIG_NL80211_TESTMODE
5801 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5805 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5810 if (!info->attrs[NL80211_ATTR_TESTDATA])
5814 if (rdev->ops->testmode_cmd) {
5815 rdev->testmode_info = info;
5816 err = rdev_testmode_cmd(rdev,
5817 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5818 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5819 rdev->testmode_info = NULL;
5825 static int nl80211_testmode_dump(struct sk_buff *skb,
5826 struct netlink_callback *cb)
5828 struct cfg80211_registered_device *rdev;
5836 * 0 is a valid index, but not valid for args[0],
5837 * so we need to offset by 1.
5839 phy_idx = cb->args[0] - 1;
5841 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
5842 nl80211_fam.attrbuf, nl80211_fam.maxattr,
5847 mutex_lock(&cfg80211_mutex);
5848 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
5849 nl80211_fam.attrbuf);
5851 mutex_unlock(&cfg80211_mutex);
5852 return PTR_ERR(rdev);
5854 phy_idx = rdev->wiphy_idx;
5856 mutex_unlock(&cfg80211_mutex);
5858 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
5860 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
5864 data = nla_data((void *)cb->args[1]);
5865 data_len = nla_len((void *)cb->args[1]);
5868 mutex_lock(&cfg80211_mutex);
5869 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
5871 mutex_unlock(&cfg80211_mutex);
5874 cfg80211_lock_rdev(rdev);
5875 mutex_unlock(&cfg80211_mutex);
5877 if (!rdev->ops->testmode_dump) {
5883 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
5884 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5885 NL80211_CMD_TESTMODE);
5886 struct nlattr *tmdata;
5888 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
5889 genlmsg_cancel(skb, hdr);
5893 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5895 genlmsg_cancel(skb, hdr);
5898 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
5899 nla_nest_end(skb, tmdata);
5901 if (err == -ENOBUFS || err == -ENOENT) {
5902 genlmsg_cancel(skb, hdr);
5905 genlmsg_cancel(skb, hdr);
5909 genlmsg_end(skb, hdr);
5914 cb->args[0] = phy_idx + 1;
5916 cfg80211_unlock_rdev(rdev);
5920 static struct sk_buff *
5921 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
5922 int approxlen, u32 portid, u32 seq, gfp_t gfp)
5924 struct sk_buff *skb;
5926 struct nlattr *data;
5928 skb = nlmsg_new(approxlen + 100, gfp);
5932 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
5938 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
5939 goto nla_put_failure;
5940 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
5942 ((void **)skb->cb)[0] = rdev;
5943 ((void **)skb->cb)[1] = hdr;
5944 ((void **)skb->cb)[2] = data;
5953 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
5956 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5958 if (WARN_ON(!rdev->testmode_info))
5961 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
5962 rdev->testmode_info->snd_portid,
5963 rdev->testmode_info->snd_seq,
5966 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
5968 int cfg80211_testmode_reply(struct sk_buff *skb)
5970 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
5971 void *hdr = ((void **)skb->cb)[1];
5972 struct nlattr *data = ((void **)skb->cb)[2];
5974 if (WARN_ON(!rdev->testmode_info)) {
5979 nla_nest_end(skb, data);
5980 genlmsg_end(skb, hdr);
5981 return genlmsg_reply(skb, rdev->testmode_info);
5983 EXPORT_SYMBOL(cfg80211_testmode_reply);
5985 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
5986 int approxlen, gfp_t gfp)
5988 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
5990 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
5992 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
5994 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
5996 void *hdr = ((void **)skb->cb)[1];
5997 struct nlattr *data = ((void **)skb->cb)[2];
5999 nla_nest_end(skb, data);
6000 genlmsg_end(skb, hdr);
6001 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6003 EXPORT_SYMBOL(cfg80211_testmode_event);
6006 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6009 struct net_device *dev = info->user_ptr[1];
6010 struct cfg80211_connect_params connect;
6011 struct wiphy *wiphy;
6012 struct cfg80211_cached_keys *connkeys = NULL;
6015 memset(&connect, 0, sizeof(connect));
6017 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6020 if (!info->attrs[NL80211_ATTR_SSID] ||
6021 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6024 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6026 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6027 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6028 NL80211_CMD_CONNECT))
6031 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6033 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6035 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6036 NL80211_MAX_NR_CIPHER_SUITES);
6040 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6041 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6044 wiphy = &rdev->wiphy;
6046 connect.bg_scan_period = -1;
6047 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6048 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6049 connect.bg_scan_period =
6050 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6053 if (info->attrs[NL80211_ATTR_MAC])
6054 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6055 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6056 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6058 if (info->attrs[NL80211_ATTR_IE]) {
6059 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6060 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6063 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6064 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6065 if (connect.mfp != NL80211_MFP_REQUIRED &&
6066 connect.mfp != NL80211_MFP_NO)
6069 connect.mfp = NL80211_MFP_NO;
6072 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6074 ieee80211_get_channel(wiphy,
6075 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6076 if (!connect.channel ||
6077 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6081 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6082 connkeys = nl80211_parse_connkeys(rdev,
6083 info->attrs[NL80211_ATTR_KEYS], NULL);
6084 if (IS_ERR(connkeys))
6085 return PTR_ERR(connkeys);
6088 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6089 connect.flags |= ASSOC_REQ_DISABLE_HT;
6091 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6092 memcpy(&connect.ht_capa_mask,
6093 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6094 sizeof(connect.ht_capa_mask));
6096 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6097 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6101 memcpy(&connect.ht_capa,
6102 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6103 sizeof(connect.ht_capa));
6106 err = cfg80211_connect(rdev, dev, &connect, connkeys);
6112 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6115 struct net_device *dev = info->user_ptr[1];
6118 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6119 reason = WLAN_REASON_DEAUTH_LEAVING;
6121 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6126 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6127 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6130 return cfg80211_disconnect(rdev, dev, reason, true);
6133 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6140 if (!info->attrs[NL80211_ATTR_PID])
6143 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6145 net = get_net_ns_by_pid(pid);
6147 return PTR_ERR(net);
6151 /* check if anything to do */
6152 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6153 err = cfg80211_switch_netns(rdev, net);
6159 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6162 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6163 struct cfg80211_pmksa *pmksa) = NULL;
6164 struct net_device *dev = info->user_ptr[1];
6165 struct cfg80211_pmksa pmksa;
6167 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6169 if (!info->attrs[NL80211_ATTR_MAC])
6172 if (!info->attrs[NL80211_ATTR_PMKID])
6175 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6176 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6178 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6179 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6182 switch (info->genlhdr->cmd) {
6183 case NL80211_CMD_SET_PMKSA:
6184 rdev_ops = rdev->ops->set_pmksa;
6186 case NL80211_CMD_DEL_PMKSA:
6187 rdev_ops = rdev->ops->del_pmksa;
6197 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6200 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6203 struct net_device *dev = info->user_ptr[1];
6205 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6206 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6209 if (!rdev->ops->flush_pmksa)
6212 return rdev_flush_pmksa(rdev, dev);
6215 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6218 struct net_device *dev = info->user_ptr[1];
6219 u8 action_code, dialog_token;
6223 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6224 !rdev->ops->tdls_mgmt)
6227 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6228 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6229 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6230 !info->attrs[NL80211_ATTR_IE] ||
6231 !info->attrs[NL80211_ATTR_MAC])
6234 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6235 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6236 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6237 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6239 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6240 dialog_token, status_code,
6241 nla_data(info->attrs[NL80211_ATTR_IE]),
6242 nla_len(info->attrs[NL80211_ATTR_IE]));
6245 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6248 struct net_device *dev = info->user_ptr[1];
6249 enum nl80211_tdls_operation operation;
6252 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6253 !rdev->ops->tdls_oper)
6256 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6257 !info->attrs[NL80211_ATTR_MAC])
6260 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6261 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6263 return rdev_tdls_oper(rdev, dev, peer, operation);
6266 static int nl80211_remain_on_channel(struct sk_buff *skb,
6267 struct genl_info *info)
6269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6270 struct wireless_dev *wdev = info->user_ptr[1];
6271 struct cfg80211_chan_def chandef;
6272 struct sk_buff *msg;
6278 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6279 !info->attrs[NL80211_ATTR_DURATION])
6282 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6284 if (!rdev->ops->remain_on_channel ||
6285 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6289 * We should be on that channel for at least a minimum amount of
6290 * time (10ms) but no longer than the driver supports.
6292 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6293 duration > rdev->wiphy.max_remain_on_channel_duration)
6296 err = nl80211_parse_chandef(rdev, info, &chandef);
6300 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6304 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6305 NL80211_CMD_REMAIN_ON_CHANNEL);
6312 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6318 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6319 goto nla_put_failure;
6321 genlmsg_end(msg, hdr);
6323 return genlmsg_reply(msg, info);
6332 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6333 struct genl_info *info)
6335 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6336 struct wireless_dev *wdev = info->user_ptr[1];
6339 if (!info->attrs[NL80211_ATTR_COOKIE])
6342 if (!rdev->ops->cancel_remain_on_channel)
6345 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6347 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6350 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6351 u8 *rates, u8 rates_len)
6356 for (i = 0; i < rates_len; i++) {
6357 int rate = (rates[i] & 0x7f) * 5;
6359 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6360 struct ieee80211_rate *srate =
6361 &sband->bitrates[ridx];
6362 if (rate == srate->bitrate) {
6367 if (ridx == sband->n_bitrates)
6368 return 0; /* rate not found */
6374 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6375 u8 *rates, u8 rates_len,
6376 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6380 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6382 for (i = 0; i < rates_len; i++) {
6385 ridx = rates[i] / 8;
6386 rbit = BIT(rates[i] % 8);
6388 /* check validity */
6389 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6392 /* check availability */
6393 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6402 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6403 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6404 .len = NL80211_MAX_SUPP_RATES },
6405 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6406 .len = NL80211_MAX_SUPP_HT_RATES },
6409 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6410 struct genl_info *info)
6412 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6413 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6414 struct cfg80211_bitrate_mask mask;
6416 struct net_device *dev = info->user_ptr[1];
6417 struct nlattr *tx_rates;
6418 struct ieee80211_supported_band *sband;
6420 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6423 if (!rdev->ops->set_bitrate_mask)
6426 memset(&mask, 0, sizeof(mask));
6427 /* Default to all rates enabled */
6428 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6429 sband = rdev->wiphy.bands[i];
6430 mask.control[i].legacy =
6431 sband ? (1 << sband->n_bitrates) - 1 : 0;
6433 memcpy(mask.control[i].mcs,
6434 sband->ht_cap.mcs.rx_mask,
6435 sizeof(mask.control[i].mcs));
6437 memset(mask.control[i].mcs, 0,
6438 sizeof(mask.control[i].mcs));
6442 * The nested attribute uses enum nl80211_band as the index. This maps
6443 * directly to the enum ieee80211_band values used in cfg80211.
6445 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6446 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6448 enum ieee80211_band band = nla_type(tx_rates);
6449 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6451 sband = rdev->wiphy.bands[band];
6454 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6455 nla_len(tx_rates), nl80211_txattr_policy);
6456 if (tb[NL80211_TXRATE_LEGACY]) {
6457 mask.control[band].legacy = rateset_to_mask(
6459 nla_data(tb[NL80211_TXRATE_LEGACY]),
6460 nla_len(tb[NL80211_TXRATE_LEGACY]));
6461 if ((mask.control[band].legacy == 0) &&
6462 nla_len(tb[NL80211_TXRATE_LEGACY]))
6465 if (tb[NL80211_TXRATE_MCS]) {
6466 if (!ht_rateset_to_mask(
6468 nla_data(tb[NL80211_TXRATE_MCS]),
6469 nla_len(tb[NL80211_TXRATE_MCS]),
6470 mask.control[band].mcs))
6474 if (mask.control[band].legacy == 0) {
6475 /* don't allow empty legacy rates if HT
6476 * is not even supported. */
6477 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6480 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6481 if (mask.control[band].mcs[i])
6484 /* legacy and mcs rates may not be both empty */
6485 if (i == IEEE80211_HT_MCS_MASK_LEN)
6490 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6493 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6496 struct wireless_dev *wdev = info->user_ptr[1];
6497 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6499 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6502 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6503 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6505 switch (wdev->iftype) {
6506 case NL80211_IFTYPE_STATION:
6507 case NL80211_IFTYPE_ADHOC:
6508 case NL80211_IFTYPE_P2P_CLIENT:
6509 case NL80211_IFTYPE_AP:
6510 case NL80211_IFTYPE_AP_VLAN:
6511 case NL80211_IFTYPE_MESH_POINT:
6512 case NL80211_IFTYPE_P2P_GO:
6513 case NL80211_IFTYPE_P2P_DEVICE:
6519 /* not much point in registering if we can't reply */
6520 if (!rdev->ops->mgmt_tx)
6523 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6524 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6525 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6528 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6530 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6531 struct wireless_dev *wdev = info->user_ptr[1];
6532 struct cfg80211_chan_def chandef;
6536 struct sk_buff *msg = NULL;
6537 unsigned int wait = 0;
6538 bool offchan, no_cck, dont_wait_for_ack;
6540 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6542 if (!info->attrs[NL80211_ATTR_FRAME])
6545 if (!rdev->ops->mgmt_tx)
6548 switch (wdev->iftype) {
6549 case NL80211_IFTYPE_STATION:
6550 case NL80211_IFTYPE_ADHOC:
6551 case NL80211_IFTYPE_P2P_CLIENT:
6552 case NL80211_IFTYPE_AP:
6553 case NL80211_IFTYPE_AP_VLAN:
6554 case NL80211_IFTYPE_MESH_POINT:
6555 case NL80211_IFTYPE_P2P_GO:
6556 case NL80211_IFTYPE_P2P_DEVICE:
6562 if (info->attrs[NL80211_ATTR_DURATION]) {
6563 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6565 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6568 * We should wait on the channel for at least a minimum amount
6569 * of time (10ms) but no longer than the driver supports.
6571 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6572 wait > rdev->wiphy.max_remain_on_channel_duration)
6577 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6579 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6582 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6584 err = nl80211_parse_chandef(rdev, info, &chandef);
6588 if (!dont_wait_for_ack) {
6589 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6593 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6602 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
6603 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6604 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6605 no_cck, dont_wait_for_ack, &cookie);
6610 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6611 goto nla_put_failure;
6613 genlmsg_end(msg, hdr);
6614 return genlmsg_reply(msg, info);
6626 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6628 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6629 struct wireless_dev *wdev = info->user_ptr[1];
6632 if (!info->attrs[NL80211_ATTR_COOKIE])
6635 if (!rdev->ops->mgmt_tx_cancel_wait)
6638 switch (wdev->iftype) {
6639 case NL80211_IFTYPE_STATION:
6640 case NL80211_IFTYPE_ADHOC:
6641 case NL80211_IFTYPE_P2P_CLIENT:
6642 case NL80211_IFTYPE_AP:
6643 case NL80211_IFTYPE_AP_VLAN:
6644 case NL80211_IFTYPE_P2P_GO:
6645 case NL80211_IFTYPE_P2P_DEVICE:
6651 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6653 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6656 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6659 struct wireless_dev *wdev;
6660 struct net_device *dev = info->user_ptr[1];
6665 if (!info->attrs[NL80211_ATTR_PS_STATE])
6668 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6670 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6673 wdev = dev->ieee80211_ptr;
6675 if (!rdev->ops->set_power_mgmt)
6678 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6680 if (state == wdev->ps)
6683 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6689 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6691 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6692 enum nl80211_ps_state ps_state;
6693 struct wireless_dev *wdev;
6694 struct net_device *dev = info->user_ptr[1];
6695 struct sk_buff *msg;
6699 wdev = dev->ieee80211_ptr;
6701 if (!rdev->ops->set_power_mgmt)
6704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6708 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6709 NL80211_CMD_GET_POWER_SAVE);
6716 ps_state = NL80211_PS_ENABLED;
6718 ps_state = NL80211_PS_DISABLED;
6720 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6721 goto nla_put_failure;
6723 genlmsg_end(msg, hdr);
6724 return genlmsg_reply(msg, info);
6733 static struct nla_policy
6734 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6735 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6736 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6737 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6738 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6739 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6740 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6743 static int nl80211_set_cqm_txe(struct genl_info *info,
6744 u32 rate, u32 pkts, u32 intvl)
6746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6747 struct wireless_dev *wdev;
6748 struct net_device *dev = info->user_ptr[1];
6750 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
6753 wdev = dev->ieee80211_ptr;
6755 if (!rdev->ops->set_cqm_txe_config)
6758 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6759 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6762 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6765 static int nl80211_set_cqm_rssi(struct genl_info *info,
6766 s32 threshold, u32 hysteresis)
6768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6769 struct wireless_dev *wdev;
6770 struct net_device *dev = info->user_ptr[1];
6775 wdev = dev->ieee80211_ptr;
6777 if (!rdev->ops->set_cqm_rssi_config)
6780 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6781 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6784 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6787 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6789 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6793 cqm = info->attrs[NL80211_ATTR_CQM];
6799 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6800 nl80211_attr_cqm_policy);
6804 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6805 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6808 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6809 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6810 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6811 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6812 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6813 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6814 u32 rate, pkts, intvl;
6815 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6816 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6817 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6818 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
6826 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
6828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6829 struct net_device *dev = info->user_ptr[1];
6830 struct mesh_config cfg;
6831 struct mesh_setup setup;
6834 /* start with default */
6835 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
6836 memcpy(&setup, &default_mesh_setup, sizeof(setup));
6838 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
6839 /* and parse parameters if given */
6840 err = nl80211_parse_mesh_config(info, &cfg, NULL);
6845 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
6846 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
6849 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
6850 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
6852 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6853 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
6854 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6857 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6858 setup.beacon_interval =
6859 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6860 if (setup.beacon_interval < 10 ||
6861 setup.beacon_interval > 10000)
6865 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
6867 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
6868 if (setup.dtim_period < 1 || setup.dtim_period > 100)
6872 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
6873 /* parse additional setup parameters if given */
6874 err = nl80211_parse_mesh_setup(info, &setup);
6879 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6880 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
6884 /* cfg80211_join_mesh() will sort it out */
6885 setup.chandef.chan = NULL;
6888 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
6891 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
6893 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6894 struct net_device *dev = info->user_ptr[1];
6896 return cfg80211_leave_mesh(rdev, dev);
6900 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
6901 struct cfg80211_registered_device *rdev)
6903 struct nlattr *nl_pats, *nl_pat;
6906 if (!rdev->wowlan->n_patterns)
6909 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
6913 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
6914 nl_pat = nla_nest_start(msg, i + 1);
6917 pat_len = rdev->wowlan->patterns[i].pattern_len;
6918 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
6919 DIV_ROUND_UP(pat_len, 8),
6920 rdev->wowlan->patterns[i].mask) ||
6921 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
6922 pat_len, rdev->wowlan->patterns[i].pattern) ||
6923 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
6924 rdev->wowlan->patterns[i].pkt_offset))
6926 nla_nest_end(msg, nl_pat);
6928 nla_nest_end(msg, nl_pats);
6933 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
6935 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6936 struct sk_buff *msg;
6939 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6946 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6947 NL80211_CMD_GET_WOWLAN);
6949 goto nla_put_failure;
6952 struct nlattr *nl_wowlan;
6954 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
6956 goto nla_put_failure;
6958 if ((rdev->wowlan->any &&
6959 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
6960 (rdev->wowlan->disconnect &&
6961 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
6962 (rdev->wowlan->magic_pkt &&
6963 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
6964 (rdev->wowlan->gtk_rekey_failure &&
6965 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
6966 (rdev->wowlan->eap_identity_req &&
6967 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
6968 (rdev->wowlan->four_way_handshake &&
6969 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
6970 (rdev->wowlan->rfkill_release &&
6971 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
6972 goto nla_put_failure;
6973 if (nl80211_send_wowlan_patterns(msg, rdev))
6974 goto nla_put_failure;
6975 nla_nest_end(msg, nl_wowlan);
6978 genlmsg_end(msg, hdr);
6979 return genlmsg_reply(msg, info);
6986 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
6988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6989 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
6990 struct cfg80211_wowlan new_triggers = {};
6991 struct cfg80211_wowlan *ntrig;
6992 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
6994 bool prev_enabled = rdev->wowlan;
6996 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
6999 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7000 cfg80211_rdev_free_wowlan(rdev);
7001 rdev->wowlan = NULL;
7005 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7006 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7007 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7008 nl80211_wowlan_policy);
7012 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7013 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7015 new_triggers.any = true;
7018 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7019 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7021 new_triggers.disconnect = true;
7024 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7025 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7027 new_triggers.magic_pkt = true;
7030 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7033 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7034 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7036 new_triggers.gtk_rekey_failure = true;
7039 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7040 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7042 new_triggers.eap_identity_req = true;
7045 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7046 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7048 new_triggers.four_way_handshake = true;
7051 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7052 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7054 new_triggers.rfkill_release = true;
7057 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7060 int rem, pat_len, mask_len, pkt_offset;
7061 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7063 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7066 if (n_patterns > wowlan->n_patterns)
7069 new_triggers.patterns = kcalloc(n_patterns,
7070 sizeof(new_triggers.patterns[0]),
7072 if (!new_triggers.patterns)
7075 new_triggers.n_patterns = n_patterns;
7078 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7080 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7081 nla_data(pat), nla_len(pat), NULL);
7083 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7084 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7086 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7087 mask_len = DIV_ROUND_UP(pat_len, 8);
7088 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7091 if (pat_len > wowlan->pattern_max_len ||
7092 pat_len < wowlan->pattern_min_len)
7095 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7098 pkt_offset = nla_get_u32(
7099 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7100 if (pkt_offset > wowlan->max_pkt_offset)
7102 new_triggers.patterns[i].pkt_offset = pkt_offset;
7104 new_triggers.patterns[i].mask =
7105 kmalloc(mask_len + pat_len, GFP_KERNEL);
7106 if (!new_triggers.patterns[i].mask) {
7110 new_triggers.patterns[i].pattern =
7111 new_triggers.patterns[i].mask + mask_len;
7112 memcpy(new_triggers.patterns[i].mask,
7113 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7115 new_triggers.patterns[i].pattern_len = pat_len;
7116 memcpy(new_triggers.patterns[i].pattern,
7117 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7123 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7128 cfg80211_rdev_free_wowlan(rdev);
7129 rdev->wowlan = ntrig;
7132 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
7133 rdev_set_wakeup(rdev, rdev->wowlan);
7137 for (i = 0; i < new_triggers.n_patterns; i++)
7138 kfree(new_triggers.patterns[i].mask);
7139 kfree(new_triggers.patterns);
7144 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7146 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7147 struct net_device *dev = info->user_ptr[1];
7148 struct wireless_dev *wdev = dev->ieee80211_ptr;
7149 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7150 struct cfg80211_gtk_rekey_data rekey_data;
7153 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7156 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7157 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7158 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7159 nl80211_rekey_policy);
7163 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7165 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7167 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7170 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7172 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7174 memcpy(rekey_data.replay_ctr,
7175 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7176 NL80211_REPLAY_CTR_LEN);
7179 if (!wdev->current_bss) {
7184 if (!rdev->ops->set_rekey_data) {
7189 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
7195 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7196 struct genl_info *info)
7198 struct net_device *dev = info->user_ptr[1];
7199 struct wireless_dev *wdev = dev->ieee80211_ptr;
7201 if (wdev->iftype != NL80211_IFTYPE_AP &&
7202 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7205 if (wdev->ap_unexpected_nlportid)
7208 wdev->ap_unexpected_nlportid = info->snd_portid;
7212 static int nl80211_probe_client(struct sk_buff *skb,
7213 struct genl_info *info)
7215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7216 struct net_device *dev = info->user_ptr[1];
7217 struct wireless_dev *wdev = dev->ieee80211_ptr;
7218 struct sk_buff *msg;
7224 if (wdev->iftype != NL80211_IFTYPE_AP &&
7225 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7228 if (!info->attrs[NL80211_ATTR_MAC])
7231 if (!rdev->ops->probe_client)
7234 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7238 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7239 NL80211_CMD_PROBE_CLIENT);
7246 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7248 err = rdev_probe_client(rdev, dev, addr, &cookie);
7252 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7253 goto nla_put_failure;
7255 genlmsg_end(msg, hdr);
7257 return genlmsg_reply(msg, info);
7266 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7269 struct cfg80211_beacon_registration *reg, *nreg;
7272 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7275 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7279 /* First, check if already registered. */
7280 spin_lock_bh(&rdev->beacon_registrations_lock);
7281 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7282 if (reg->nlportid == info->snd_portid) {
7287 /* Add it to the list */
7288 nreg->nlportid = info->snd_portid;
7289 list_add(&nreg->list, &rdev->beacon_registrations);
7291 spin_unlock_bh(&rdev->beacon_registrations_lock);
7295 spin_unlock_bh(&rdev->beacon_registrations_lock);
7300 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7303 struct wireless_dev *wdev = info->user_ptr[1];
7306 if (!rdev->ops->start_p2p_device)
7309 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7312 if (wdev->p2p_started)
7315 mutex_lock(&rdev->devlist_mtx);
7316 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7317 mutex_unlock(&rdev->devlist_mtx);
7321 err = rdev_start_p2p_device(rdev, wdev);
7325 wdev->p2p_started = true;
7326 mutex_lock(&rdev->devlist_mtx);
7328 mutex_unlock(&rdev->devlist_mtx);
7333 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7335 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7336 struct wireless_dev *wdev = info->user_ptr[1];
7338 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7341 if (!rdev->ops->stop_p2p_device)
7344 if (!wdev->p2p_started)
7347 rdev_stop_p2p_device(rdev, wdev);
7348 wdev->p2p_started = false;
7350 mutex_lock(&rdev->devlist_mtx);
7352 mutex_unlock(&rdev->devlist_mtx);
7354 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7355 rdev->scan_req->aborted = true;
7356 ___cfg80211_scan_done(rdev, true);
7362 #define NL80211_FLAG_NEED_WIPHY 0x01
7363 #define NL80211_FLAG_NEED_NETDEV 0x02
7364 #define NL80211_FLAG_NEED_RTNL 0x04
7365 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7366 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7367 NL80211_FLAG_CHECK_NETDEV_UP)
7368 #define NL80211_FLAG_NEED_WDEV 0x10
7369 /* If a netdev is associated, it must be UP, P2P must be started */
7370 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7371 NL80211_FLAG_CHECK_NETDEV_UP)
7373 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7374 struct genl_info *info)
7376 struct cfg80211_registered_device *rdev;
7377 struct wireless_dev *wdev;
7378 struct net_device *dev;
7379 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7384 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7385 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7389 return PTR_ERR(rdev);
7391 info->user_ptr[0] = rdev;
7392 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7393 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7394 mutex_lock(&cfg80211_mutex);
7395 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7398 mutex_unlock(&cfg80211_mutex);
7401 return PTR_ERR(wdev);
7405 rdev = wiphy_to_dev(wdev->wiphy);
7407 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7409 mutex_unlock(&cfg80211_mutex);
7415 info->user_ptr[1] = dev;
7417 info->user_ptr[1] = wdev;
7421 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7422 !netif_running(dev)) {
7423 mutex_unlock(&cfg80211_mutex);
7430 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7431 if (!wdev->p2p_started) {
7432 mutex_unlock(&cfg80211_mutex);
7439 cfg80211_lock_rdev(rdev);
7441 mutex_unlock(&cfg80211_mutex);
7443 info->user_ptr[0] = rdev;
7449 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7450 struct genl_info *info)
7452 if (info->user_ptr[0])
7453 cfg80211_unlock_rdev(info->user_ptr[0]);
7454 if (info->user_ptr[1]) {
7455 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7456 struct wireless_dev *wdev = info->user_ptr[1];
7459 dev_put(wdev->netdev);
7461 dev_put(info->user_ptr[1]);
7464 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7468 static struct genl_ops nl80211_ops[] = {
7470 .cmd = NL80211_CMD_GET_WIPHY,
7471 .doit = nl80211_get_wiphy,
7472 .dumpit = nl80211_dump_wiphy,
7473 .policy = nl80211_policy,
7474 /* can be retrieved by unprivileged users */
7475 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7478 .cmd = NL80211_CMD_SET_WIPHY,
7479 .doit = nl80211_set_wiphy,
7480 .policy = nl80211_policy,
7481 .flags = GENL_ADMIN_PERM,
7482 .internal_flags = NL80211_FLAG_NEED_RTNL,
7485 .cmd = NL80211_CMD_GET_INTERFACE,
7486 .doit = nl80211_get_interface,
7487 .dumpit = nl80211_dump_interface,
7488 .policy = nl80211_policy,
7489 /* can be retrieved by unprivileged users */
7490 .internal_flags = NL80211_FLAG_NEED_WDEV,
7493 .cmd = NL80211_CMD_SET_INTERFACE,
7494 .doit = nl80211_set_interface,
7495 .policy = nl80211_policy,
7496 .flags = GENL_ADMIN_PERM,
7497 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7498 NL80211_FLAG_NEED_RTNL,
7501 .cmd = NL80211_CMD_NEW_INTERFACE,
7502 .doit = nl80211_new_interface,
7503 .policy = nl80211_policy,
7504 .flags = GENL_ADMIN_PERM,
7505 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7506 NL80211_FLAG_NEED_RTNL,
7509 .cmd = NL80211_CMD_DEL_INTERFACE,
7510 .doit = nl80211_del_interface,
7511 .policy = nl80211_policy,
7512 .flags = GENL_ADMIN_PERM,
7513 .internal_flags = NL80211_FLAG_NEED_WDEV |
7514 NL80211_FLAG_NEED_RTNL,
7517 .cmd = NL80211_CMD_GET_KEY,
7518 .doit = nl80211_get_key,
7519 .policy = nl80211_policy,
7520 .flags = GENL_ADMIN_PERM,
7521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7522 NL80211_FLAG_NEED_RTNL,
7525 .cmd = NL80211_CMD_SET_KEY,
7526 .doit = nl80211_set_key,
7527 .policy = nl80211_policy,
7528 .flags = GENL_ADMIN_PERM,
7529 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7530 NL80211_FLAG_NEED_RTNL,
7533 .cmd = NL80211_CMD_NEW_KEY,
7534 .doit = nl80211_new_key,
7535 .policy = nl80211_policy,
7536 .flags = GENL_ADMIN_PERM,
7537 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7538 NL80211_FLAG_NEED_RTNL,
7541 .cmd = NL80211_CMD_DEL_KEY,
7542 .doit = nl80211_del_key,
7543 .policy = nl80211_policy,
7544 .flags = GENL_ADMIN_PERM,
7545 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7546 NL80211_FLAG_NEED_RTNL,
7549 .cmd = NL80211_CMD_SET_BEACON,
7550 .policy = nl80211_policy,
7551 .flags = GENL_ADMIN_PERM,
7552 .doit = nl80211_set_beacon,
7553 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7554 NL80211_FLAG_NEED_RTNL,
7557 .cmd = NL80211_CMD_START_AP,
7558 .policy = nl80211_policy,
7559 .flags = GENL_ADMIN_PERM,
7560 .doit = nl80211_start_ap,
7561 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7562 NL80211_FLAG_NEED_RTNL,
7565 .cmd = NL80211_CMD_STOP_AP,
7566 .policy = nl80211_policy,
7567 .flags = GENL_ADMIN_PERM,
7568 .doit = nl80211_stop_ap,
7569 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7570 NL80211_FLAG_NEED_RTNL,
7573 .cmd = NL80211_CMD_GET_STATION,
7574 .doit = nl80211_get_station,
7575 .dumpit = nl80211_dump_station,
7576 .policy = nl80211_policy,
7577 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7578 NL80211_FLAG_NEED_RTNL,
7581 .cmd = NL80211_CMD_SET_STATION,
7582 .doit = nl80211_set_station,
7583 .policy = nl80211_policy,
7584 .flags = GENL_ADMIN_PERM,
7585 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7586 NL80211_FLAG_NEED_RTNL,
7589 .cmd = NL80211_CMD_NEW_STATION,
7590 .doit = nl80211_new_station,
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_DEL_STATION,
7598 .doit = nl80211_del_station,
7599 .policy = nl80211_policy,
7600 .flags = GENL_ADMIN_PERM,
7601 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7602 NL80211_FLAG_NEED_RTNL,
7605 .cmd = NL80211_CMD_GET_MPATH,
7606 .doit = nl80211_get_mpath,
7607 .dumpit = nl80211_dump_mpath,
7608 .policy = nl80211_policy,
7609 .flags = GENL_ADMIN_PERM,
7610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7611 NL80211_FLAG_NEED_RTNL,
7614 .cmd = NL80211_CMD_SET_MPATH,
7615 .doit = nl80211_set_mpath,
7616 .policy = nl80211_policy,
7617 .flags = GENL_ADMIN_PERM,
7618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7619 NL80211_FLAG_NEED_RTNL,
7622 .cmd = NL80211_CMD_NEW_MPATH,
7623 .doit = nl80211_new_mpath,
7624 .policy = nl80211_policy,
7625 .flags = GENL_ADMIN_PERM,
7626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7627 NL80211_FLAG_NEED_RTNL,
7630 .cmd = NL80211_CMD_DEL_MPATH,
7631 .doit = nl80211_del_mpath,
7632 .policy = nl80211_policy,
7633 .flags = GENL_ADMIN_PERM,
7634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7635 NL80211_FLAG_NEED_RTNL,
7638 .cmd = NL80211_CMD_SET_BSS,
7639 .doit = nl80211_set_bss,
7640 .policy = nl80211_policy,
7641 .flags = GENL_ADMIN_PERM,
7642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7643 NL80211_FLAG_NEED_RTNL,
7646 .cmd = NL80211_CMD_GET_REG,
7647 .doit = nl80211_get_reg,
7648 .policy = nl80211_policy,
7649 /* can be retrieved by unprivileged users */
7652 .cmd = NL80211_CMD_SET_REG,
7653 .doit = nl80211_set_reg,
7654 .policy = nl80211_policy,
7655 .flags = GENL_ADMIN_PERM,
7658 .cmd = NL80211_CMD_REQ_SET_REG,
7659 .doit = nl80211_req_set_reg,
7660 .policy = nl80211_policy,
7661 .flags = GENL_ADMIN_PERM,
7664 .cmd = NL80211_CMD_GET_MESH_CONFIG,
7665 .doit = nl80211_get_mesh_config,
7666 .policy = nl80211_policy,
7667 /* can be retrieved by unprivileged users */
7668 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7669 NL80211_FLAG_NEED_RTNL,
7672 .cmd = NL80211_CMD_SET_MESH_CONFIG,
7673 .doit = nl80211_update_mesh_config,
7674 .policy = nl80211_policy,
7675 .flags = GENL_ADMIN_PERM,
7676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7677 NL80211_FLAG_NEED_RTNL,
7680 .cmd = NL80211_CMD_TRIGGER_SCAN,
7681 .doit = nl80211_trigger_scan,
7682 .policy = nl80211_policy,
7683 .flags = GENL_ADMIN_PERM,
7684 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7685 NL80211_FLAG_NEED_RTNL,
7688 .cmd = NL80211_CMD_GET_SCAN,
7689 .policy = nl80211_policy,
7690 .dumpit = nl80211_dump_scan,
7693 .cmd = NL80211_CMD_START_SCHED_SCAN,
7694 .doit = nl80211_start_sched_scan,
7695 .policy = nl80211_policy,
7696 .flags = GENL_ADMIN_PERM,
7697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7698 NL80211_FLAG_NEED_RTNL,
7701 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
7702 .doit = nl80211_stop_sched_scan,
7703 .policy = nl80211_policy,
7704 .flags = GENL_ADMIN_PERM,
7705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7706 NL80211_FLAG_NEED_RTNL,
7709 .cmd = NL80211_CMD_AUTHENTICATE,
7710 .doit = nl80211_authenticate,
7711 .policy = nl80211_policy,
7712 .flags = GENL_ADMIN_PERM,
7713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7714 NL80211_FLAG_NEED_RTNL,
7717 .cmd = NL80211_CMD_ASSOCIATE,
7718 .doit = nl80211_associate,
7719 .policy = nl80211_policy,
7720 .flags = GENL_ADMIN_PERM,
7721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7722 NL80211_FLAG_NEED_RTNL,
7725 .cmd = NL80211_CMD_DEAUTHENTICATE,
7726 .doit = nl80211_deauthenticate,
7727 .policy = nl80211_policy,
7728 .flags = GENL_ADMIN_PERM,
7729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7730 NL80211_FLAG_NEED_RTNL,
7733 .cmd = NL80211_CMD_DISASSOCIATE,
7734 .doit = nl80211_disassociate,
7735 .policy = nl80211_policy,
7736 .flags = GENL_ADMIN_PERM,
7737 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7738 NL80211_FLAG_NEED_RTNL,
7741 .cmd = NL80211_CMD_JOIN_IBSS,
7742 .doit = nl80211_join_ibss,
7743 .policy = nl80211_policy,
7744 .flags = GENL_ADMIN_PERM,
7745 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7746 NL80211_FLAG_NEED_RTNL,
7749 .cmd = NL80211_CMD_LEAVE_IBSS,
7750 .doit = nl80211_leave_ibss,
7751 .policy = nl80211_policy,
7752 .flags = GENL_ADMIN_PERM,
7753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7754 NL80211_FLAG_NEED_RTNL,
7756 #ifdef CONFIG_NL80211_TESTMODE
7758 .cmd = NL80211_CMD_TESTMODE,
7759 .doit = nl80211_testmode_do,
7760 .dumpit = nl80211_testmode_dump,
7761 .policy = nl80211_policy,
7762 .flags = GENL_ADMIN_PERM,
7763 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7764 NL80211_FLAG_NEED_RTNL,
7768 .cmd = NL80211_CMD_CONNECT,
7769 .doit = nl80211_connect,
7770 .policy = nl80211_policy,
7771 .flags = GENL_ADMIN_PERM,
7772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7773 NL80211_FLAG_NEED_RTNL,
7776 .cmd = NL80211_CMD_DISCONNECT,
7777 .doit = nl80211_disconnect,
7778 .policy = nl80211_policy,
7779 .flags = GENL_ADMIN_PERM,
7780 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7781 NL80211_FLAG_NEED_RTNL,
7784 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
7785 .doit = nl80211_wiphy_netns,
7786 .policy = nl80211_policy,
7787 .flags = GENL_ADMIN_PERM,
7788 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7789 NL80211_FLAG_NEED_RTNL,
7792 .cmd = NL80211_CMD_GET_SURVEY,
7793 .policy = nl80211_policy,
7794 .dumpit = nl80211_dump_survey,
7797 .cmd = NL80211_CMD_SET_PMKSA,
7798 .doit = nl80211_setdel_pmksa,
7799 .policy = nl80211_policy,
7800 .flags = GENL_ADMIN_PERM,
7801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7802 NL80211_FLAG_NEED_RTNL,
7805 .cmd = NL80211_CMD_DEL_PMKSA,
7806 .doit = nl80211_setdel_pmksa,
7807 .policy = nl80211_policy,
7808 .flags = GENL_ADMIN_PERM,
7809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7810 NL80211_FLAG_NEED_RTNL,
7813 .cmd = NL80211_CMD_FLUSH_PMKSA,
7814 .doit = nl80211_flush_pmksa,
7815 .policy = nl80211_policy,
7816 .flags = GENL_ADMIN_PERM,
7817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7818 NL80211_FLAG_NEED_RTNL,
7821 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
7822 .doit = nl80211_remain_on_channel,
7823 .policy = nl80211_policy,
7824 .flags = GENL_ADMIN_PERM,
7825 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7826 NL80211_FLAG_NEED_RTNL,
7829 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
7830 .doit = nl80211_cancel_remain_on_channel,
7831 .policy = nl80211_policy,
7832 .flags = GENL_ADMIN_PERM,
7833 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7834 NL80211_FLAG_NEED_RTNL,
7837 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
7838 .doit = nl80211_set_tx_bitrate_mask,
7839 .policy = nl80211_policy,
7840 .flags = GENL_ADMIN_PERM,
7841 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7842 NL80211_FLAG_NEED_RTNL,
7845 .cmd = NL80211_CMD_REGISTER_FRAME,
7846 .doit = nl80211_register_mgmt,
7847 .policy = nl80211_policy,
7848 .flags = GENL_ADMIN_PERM,
7849 .internal_flags = NL80211_FLAG_NEED_WDEV |
7850 NL80211_FLAG_NEED_RTNL,
7853 .cmd = NL80211_CMD_FRAME,
7854 .doit = nl80211_tx_mgmt,
7855 .policy = nl80211_policy,
7856 .flags = GENL_ADMIN_PERM,
7857 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7858 NL80211_FLAG_NEED_RTNL,
7861 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
7862 .doit = nl80211_tx_mgmt_cancel_wait,
7863 .policy = nl80211_policy,
7864 .flags = GENL_ADMIN_PERM,
7865 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
7866 NL80211_FLAG_NEED_RTNL,
7869 .cmd = NL80211_CMD_SET_POWER_SAVE,
7870 .doit = nl80211_set_power_save,
7871 .policy = nl80211_policy,
7872 .flags = GENL_ADMIN_PERM,
7873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7874 NL80211_FLAG_NEED_RTNL,
7877 .cmd = NL80211_CMD_GET_POWER_SAVE,
7878 .doit = nl80211_get_power_save,
7879 .policy = nl80211_policy,
7880 /* can be retrieved by unprivileged users */
7881 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7882 NL80211_FLAG_NEED_RTNL,
7885 .cmd = NL80211_CMD_SET_CQM,
7886 .doit = nl80211_set_cqm,
7887 .policy = nl80211_policy,
7888 .flags = GENL_ADMIN_PERM,
7889 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7890 NL80211_FLAG_NEED_RTNL,
7893 .cmd = NL80211_CMD_SET_CHANNEL,
7894 .doit = nl80211_set_channel,
7895 .policy = nl80211_policy,
7896 .flags = GENL_ADMIN_PERM,
7897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7898 NL80211_FLAG_NEED_RTNL,
7901 .cmd = NL80211_CMD_SET_WDS_PEER,
7902 .doit = nl80211_set_wds_peer,
7903 .policy = nl80211_policy,
7904 .flags = GENL_ADMIN_PERM,
7905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7906 NL80211_FLAG_NEED_RTNL,
7909 .cmd = NL80211_CMD_JOIN_MESH,
7910 .doit = nl80211_join_mesh,
7911 .policy = nl80211_policy,
7912 .flags = GENL_ADMIN_PERM,
7913 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7914 NL80211_FLAG_NEED_RTNL,
7917 .cmd = NL80211_CMD_LEAVE_MESH,
7918 .doit = nl80211_leave_mesh,
7919 .policy = nl80211_policy,
7920 .flags = GENL_ADMIN_PERM,
7921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7922 NL80211_FLAG_NEED_RTNL,
7926 .cmd = NL80211_CMD_GET_WOWLAN,
7927 .doit = nl80211_get_wowlan,
7928 .policy = nl80211_policy,
7929 /* can be retrieved by unprivileged users */
7930 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7931 NL80211_FLAG_NEED_RTNL,
7934 .cmd = NL80211_CMD_SET_WOWLAN,
7935 .doit = nl80211_set_wowlan,
7936 .policy = nl80211_policy,
7937 .flags = GENL_ADMIN_PERM,
7938 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7939 NL80211_FLAG_NEED_RTNL,
7943 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
7944 .doit = nl80211_set_rekey_data,
7945 .policy = nl80211_policy,
7946 .flags = GENL_ADMIN_PERM,
7947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7948 NL80211_FLAG_NEED_RTNL,
7951 .cmd = NL80211_CMD_TDLS_MGMT,
7952 .doit = nl80211_tdls_mgmt,
7953 .policy = nl80211_policy,
7954 .flags = GENL_ADMIN_PERM,
7955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7956 NL80211_FLAG_NEED_RTNL,
7959 .cmd = NL80211_CMD_TDLS_OPER,
7960 .doit = nl80211_tdls_oper,
7961 .policy = nl80211_policy,
7962 .flags = GENL_ADMIN_PERM,
7963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7964 NL80211_FLAG_NEED_RTNL,
7967 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
7968 .doit = nl80211_register_unexpected_frame,
7969 .policy = nl80211_policy,
7970 .flags = GENL_ADMIN_PERM,
7971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7972 NL80211_FLAG_NEED_RTNL,
7975 .cmd = NL80211_CMD_PROBE_CLIENT,
7976 .doit = nl80211_probe_client,
7977 .policy = nl80211_policy,
7978 .flags = GENL_ADMIN_PERM,
7979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7980 NL80211_FLAG_NEED_RTNL,
7983 .cmd = NL80211_CMD_REGISTER_BEACONS,
7984 .doit = nl80211_register_beacons,
7985 .policy = nl80211_policy,
7986 .flags = GENL_ADMIN_PERM,
7987 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7988 NL80211_FLAG_NEED_RTNL,
7991 .cmd = NL80211_CMD_SET_NOACK_MAP,
7992 .doit = nl80211_set_noack_map,
7993 .policy = nl80211_policy,
7994 .flags = GENL_ADMIN_PERM,
7995 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7996 NL80211_FLAG_NEED_RTNL,
7999 .cmd = NL80211_CMD_START_P2P_DEVICE,
8000 .doit = nl80211_start_p2p_device,
8001 .policy = nl80211_policy,
8002 .flags = GENL_ADMIN_PERM,
8003 .internal_flags = NL80211_FLAG_NEED_WDEV |
8004 NL80211_FLAG_NEED_RTNL,
8007 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8008 .doit = nl80211_stop_p2p_device,
8009 .policy = nl80211_policy,
8010 .flags = GENL_ADMIN_PERM,
8011 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8012 NL80211_FLAG_NEED_RTNL,
8015 .cmd = NL80211_CMD_SET_MCAST_RATE,
8016 .doit = nl80211_set_mcast_rate,
8017 .policy = nl80211_policy,
8018 .flags = GENL_ADMIN_PERM,
8019 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8020 NL80211_FLAG_NEED_RTNL,
8023 .cmd = NL80211_CMD_SET_MAC_ACL,
8024 .doit = nl80211_set_mac_acl,
8025 .policy = nl80211_policy,
8026 .flags = GENL_ADMIN_PERM,
8027 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8028 NL80211_FLAG_NEED_RTNL,
8032 static struct genl_multicast_group nl80211_mlme_mcgrp = {
8036 /* multicast groups */
8037 static struct genl_multicast_group nl80211_config_mcgrp = {
8040 static struct genl_multicast_group nl80211_scan_mcgrp = {
8043 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8044 .name = "regulatory",
8047 /* notification functions */
8049 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8051 struct sk_buff *msg;
8053 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8057 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8062 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8063 nl80211_config_mcgrp.id, GFP_KERNEL);
8066 static int nl80211_add_scan_req(struct sk_buff *msg,
8067 struct cfg80211_registered_device *rdev)
8069 struct cfg80211_scan_request *req = rdev->scan_req;
8070 struct nlattr *nest;
8073 ASSERT_RDEV_LOCK(rdev);
8078 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8080 goto nla_put_failure;
8081 for (i = 0; i < req->n_ssids; i++) {
8082 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8083 goto nla_put_failure;
8085 nla_nest_end(msg, nest);
8087 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8089 goto nla_put_failure;
8090 for (i = 0; i < req->n_channels; i++) {
8091 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8092 goto nla_put_failure;
8094 nla_nest_end(msg, nest);
8097 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8098 goto nla_put_failure;
8101 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8108 static int nl80211_send_scan_msg(struct sk_buff *msg,
8109 struct cfg80211_registered_device *rdev,
8110 struct wireless_dev *wdev,
8111 u32 portid, u32 seq, int flags,
8116 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8120 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8121 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8122 wdev->netdev->ifindex)) ||
8123 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
8124 goto nla_put_failure;
8126 /* ignore errors and send incomplete event anyway */
8127 nl80211_add_scan_req(msg, rdev);
8129 return genlmsg_end(msg, hdr);
8132 genlmsg_cancel(msg, hdr);
8137 nl80211_send_sched_scan_msg(struct sk_buff *msg,
8138 struct cfg80211_registered_device *rdev,
8139 struct net_device *netdev,
8140 u32 portid, u32 seq, int flags, u32 cmd)
8144 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8148 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8149 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8150 goto nla_put_failure;
8152 return genlmsg_end(msg, hdr);
8155 genlmsg_cancel(msg, hdr);
8159 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
8160 struct wireless_dev *wdev)
8162 struct sk_buff *msg;
8164 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8168 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8169 NL80211_CMD_TRIGGER_SCAN) < 0) {
8174 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8175 nl80211_scan_mcgrp.id, GFP_KERNEL);
8178 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
8179 struct wireless_dev *wdev)
8181 struct sk_buff *msg;
8183 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8187 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8188 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
8193 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8194 nl80211_scan_mcgrp.id, GFP_KERNEL);
8197 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
8198 struct wireless_dev *wdev)
8200 struct sk_buff *msg;
8202 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8206 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8207 NL80211_CMD_SCAN_ABORTED) < 0) {
8212 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8213 nl80211_scan_mcgrp.id, GFP_KERNEL);
8216 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8217 struct net_device *netdev)
8219 struct sk_buff *msg;
8221 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8225 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8226 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8231 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8232 nl80211_scan_mcgrp.id, GFP_KERNEL);
8235 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8236 struct net_device *netdev, u32 cmd)
8238 struct sk_buff *msg;
8240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8244 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8249 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8250 nl80211_scan_mcgrp.id, GFP_KERNEL);
8254 * This can happen on global regulatory changes or device specific settings
8255 * based on custom world regulatory domains.
8257 void nl80211_send_reg_change_event(struct regulatory_request *request)
8259 struct sk_buff *msg;
8262 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8266 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8272 /* Userspace can always count this one always being set */
8273 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8274 goto nla_put_failure;
8276 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8277 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8278 NL80211_REGDOM_TYPE_WORLD))
8279 goto nla_put_failure;
8280 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8281 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8282 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8283 goto nla_put_failure;
8284 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8285 request->intersect) {
8286 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8287 NL80211_REGDOM_TYPE_INTERSECTION))
8288 goto nla_put_failure;
8290 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8291 NL80211_REGDOM_TYPE_COUNTRY) ||
8292 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8294 goto nla_put_failure;
8297 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
8298 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8299 goto nla_put_failure;
8301 genlmsg_end(msg, hdr);
8304 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8311 genlmsg_cancel(msg, hdr);
8315 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8316 struct net_device *netdev,
8317 const u8 *buf, size_t len,
8318 enum nl80211_commands cmd, gfp_t gfp)
8320 struct sk_buff *msg;
8323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8327 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8334 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8335 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8336 goto nla_put_failure;
8338 genlmsg_end(msg, hdr);
8340 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8341 nl80211_mlme_mcgrp.id, gfp);
8345 genlmsg_cancel(msg, hdr);
8349 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8350 struct net_device *netdev, const u8 *buf,
8351 size_t len, gfp_t gfp)
8353 nl80211_send_mlme_event(rdev, netdev, buf, len,
8354 NL80211_CMD_AUTHENTICATE, gfp);
8357 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8358 struct net_device *netdev, const u8 *buf,
8359 size_t len, gfp_t gfp)
8361 nl80211_send_mlme_event(rdev, netdev, buf, len,
8362 NL80211_CMD_ASSOCIATE, gfp);
8365 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8366 struct net_device *netdev, const u8 *buf,
8367 size_t len, gfp_t gfp)
8369 nl80211_send_mlme_event(rdev, netdev, buf, len,
8370 NL80211_CMD_DEAUTHENTICATE, gfp);
8373 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8374 struct net_device *netdev, const u8 *buf,
8375 size_t len, gfp_t gfp)
8377 nl80211_send_mlme_event(rdev, netdev, buf, len,
8378 NL80211_CMD_DISASSOCIATE, gfp);
8381 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8382 struct net_device *netdev, const u8 *buf,
8383 size_t len, gfp_t gfp)
8385 nl80211_send_mlme_event(rdev, netdev, buf, len,
8386 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8389 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8390 struct net_device *netdev, const u8 *buf,
8391 size_t len, gfp_t gfp)
8393 nl80211_send_mlme_event(rdev, netdev, buf, len,
8394 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8397 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8398 struct net_device *netdev, int cmd,
8399 const u8 *addr, gfp_t gfp)
8401 struct sk_buff *msg;
8404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8408 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8414 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8415 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8416 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8417 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8418 goto nla_put_failure;
8420 genlmsg_end(msg, hdr);
8422 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8423 nl80211_mlme_mcgrp.id, gfp);
8427 genlmsg_cancel(msg, hdr);
8431 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8432 struct net_device *netdev, const u8 *addr,
8435 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8439 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8440 struct net_device *netdev, const u8 *addr,
8443 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8447 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8448 struct net_device *netdev, const u8 *bssid,
8449 const u8 *req_ie, size_t req_ie_len,
8450 const u8 *resp_ie, size_t resp_ie_len,
8451 u16 status, gfp_t gfp)
8453 struct sk_buff *msg;
8456 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8460 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8466 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8467 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8468 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8469 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8471 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8473 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8474 goto nla_put_failure;
8476 genlmsg_end(msg, hdr);
8478 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8479 nl80211_mlme_mcgrp.id, gfp);
8483 genlmsg_cancel(msg, hdr);
8488 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8489 struct net_device *netdev, const u8 *bssid,
8490 const u8 *req_ie, size_t req_ie_len,
8491 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8493 struct sk_buff *msg;
8496 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8500 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8506 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8507 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8508 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8510 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8512 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8513 goto nla_put_failure;
8515 genlmsg_end(msg, hdr);
8517 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8518 nl80211_mlme_mcgrp.id, gfp);
8522 genlmsg_cancel(msg, hdr);
8527 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8528 struct net_device *netdev, u16 reason,
8529 const u8 *ie, size_t ie_len, bool from_ap)
8531 struct sk_buff *msg;
8534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8538 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8544 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8545 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8546 (from_ap && reason &&
8547 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8549 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8550 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8551 goto nla_put_failure;
8553 genlmsg_end(msg, hdr);
8555 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8556 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8560 genlmsg_cancel(msg, hdr);
8565 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8566 struct net_device *netdev, const u8 *bssid,
8569 struct sk_buff *msg;
8572 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8576 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8582 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8583 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8584 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8585 goto nla_put_failure;
8587 genlmsg_end(msg, hdr);
8589 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8590 nl80211_mlme_mcgrp.id, gfp);
8594 genlmsg_cancel(msg, hdr);
8598 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8599 struct net_device *netdev,
8600 const u8 *macaddr, const u8* ie, u8 ie_len,
8603 struct sk_buff *msg;
8606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8610 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
8616 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8617 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8618 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
8620 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
8621 goto nla_put_failure;
8623 genlmsg_end(msg, hdr);
8625 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8626 nl80211_mlme_mcgrp.id, gfp);
8630 genlmsg_cancel(msg, hdr);
8634 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
8635 struct net_device *netdev, const u8 *addr,
8636 enum nl80211_key_type key_type, int key_id,
8637 const u8 *tsc, gfp_t gfp)
8639 struct sk_buff *msg;
8642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8646 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
8652 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8653 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8654 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
8655 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
8657 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
8658 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
8659 goto nla_put_failure;
8661 genlmsg_end(msg, hdr);
8663 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8664 nl80211_mlme_mcgrp.id, gfp);
8668 genlmsg_cancel(msg, hdr);
8672 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
8673 struct ieee80211_channel *channel_before,
8674 struct ieee80211_channel *channel_after)
8676 struct sk_buff *msg;
8678 struct nlattr *nl_freq;
8680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
8684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
8691 * Since we are applying the beacon hint to a wiphy we know its
8692 * wiphy_idx is valid
8694 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
8695 goto nla_put_failure;
8698 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
8700 goto nla_put_failure;
8701 if (nl80211_msg_put_channel(msg, channel_before))
8702 goto nla_put_failure;
8703 nla_nest_end(msg, nl_freq);
8706 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
8708 goto nla_put_failure;
8709 if (nl80211_msg_put_channel(msg, channel_after))
8710 goto nla_put_failure;
8711 nla_nest_end(msg, nl_freq);
8713 genlmsg_end(msg, hdr);
8716 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8723 genlmsg_cancel(msg, hdr);
8727 static void nl80211_send_remain_on_chan_event(
8728 int cmd, struct cfg80211_registered_device *rdev,
8729 struct wireless_dev *wdev, u64 cookie,
8730 struct ieee80211_channel *chan,
8731 unsigned int duration, gfp_t gfp)
8733 struct sk_buff *msg;
8736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8740 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8746 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8747 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8748 wdev->netdev->ifindex)) ||
8749 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
8750 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
8751 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
8752 NL80211_CHAN_NO_HT) ||
8753 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8754 goto nla_put_failure;
8756 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
8757 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
8758 goto nla_put_failure;
8760 genlmsg_end(msg, hdr);
8762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8763 nl80211_mlme_mcgrp.id, gfp);
8767 genlmsg_cancel(msg, hdr);
8771 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
8772 struct wireless_dev *wdev, u64 cookie,
8773 struct ieee80211_channel *chan,
8774 unsigned int duration, gfp_t gfp)
8776 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
8777 rdev, wdev, cookie, chan,
8781 void nl80211_send_remain_on_channel_cancel(
8782 struct cfg80211_registered_device *rdev,
8783 struct wireless_dev *wdev,
8784 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
8786 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8787 rdev, wdev, cookie, chan, 0, gfp);
8790 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
8791 struct net_device *dev, const u8 *mac_addr,
8792 struct station_info *sinfo, gfp_t gfp)
8794 struct sk_buff *msg;
8796 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8800 if (nl80211_send_station(msg, 0, 0, 0,
8801 rdev, dev, mac_addr, sinfo) < 0) {
8806 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8807 nl80211_mlme_mcgrp.id, gfp);
8810 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
8811 struct net_device *dev, const u8 *mac_addr,
8814 struct sk_buff *msg;
8817 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8821 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
8827 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8828 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
8829 goto nla_put_failure;
8831 genlmsg_end(msg, hdr);
8833 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8834 nl80211_mlme_mcgrp.id, gfp);
8838 genlmsg_cancel(msg, hdr);
8842 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
8843 struct net_device *dev, const u8 *mac_addr,
8844 enum nl80211_connect_failed_reason reason,
8847 struct sk_buff *msg;
8850 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
8854 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
8860 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8861 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
8862 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
8863 goto nla_put_failure;
8865 genlmsg_end(msg, hdr);
8867 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8868 nl80211_mlme_mcgrp.id, gfp);
8872 genlmsg_cancel(msg, hdr);
8876 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
8877 const u8 *addr, gfp_t gfp)
8879 struct wireless_dev *wdev = dev->ieee80211_ptr;
8880 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
8881 struct sk_buff *msg;
8884 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
8889 msg = nlmsg_new(100, gfp);
8893 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8899 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8900 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
8901 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8902 goto nla_put_failure;
8904 err = genlmsg_end(msg, hdr);
8910 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8914 genlmsg_cancel(msg, hdr);
8919 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
8921 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
8925 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
8926 const u8 *addr, gfp_t gfp)
8928 return __nl80211_unexpected_frame(dev,
8929 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
8933 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
8934 struct wireless_dev *wdev, u32 nlportid,
8935 int freq, int sig_dbm,
8936 const u8 *buf, size_t len, gfp_t gfp)
8938 struct net_device *netdev = wdev->netdev;
8939 struct sk_buff *msg;
8942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8946 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
8952 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8953 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8954 netdev->ifindex)) ||
8955 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
8957 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
8958 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8959 goto nla_put_failure;
8961 genlmsg_end(msg, hdr);
8963 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
8966 genlmsg_cancel(msg, hdr);
8971 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
8972 struct wireless_dev *wdev, u64 cookie,
8973 const u8 *buf, size_t len, bool ack,
8976 struct net_device *netdev = wdev->netdev;
8977 struct sk_buff *msg;
8980 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8984 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
8990 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8991 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8992 netdev->ifindex)) ||
8993 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
8994 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
8995 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
8996 goto nla_put_failure;
8998 genlmsg_end(msg, hdr);
9000 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9004 genlmsg_cancel(msg, hdr);
9009 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9010 struct net_device *netdev,
9011 enum nl80211_cqm_rssi_threshold_event rssi_event,
9014 struct sk_buff *msg;
9015 struct nlattr *pinfoattr;
9018 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9022 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9028 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9029 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9030 goto nla_put_failure;
9032 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9034 goto nla_put_failure;
9036 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9038 goto nla_put_failure;
9040 nla_nest_end(msg, pinfoattr);
9042 genlmsg_end(msg, hdr);
9044 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9045 nl80211_mlme_mcgrp.id, gfp);
9049 genlmsg_cancel(msg, hdr);
9053 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9054 struct net_device *netdev, const u8 *bssid,
9055 const u8 *replay_ctr, gfp_t gfp)
9057 struct sk_buff *msg;
9058 struct nlattr *rekey_attr;
9061 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9065 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9071 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9072 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9073 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9074 goto nla_put_failure;
9076 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9078 goto nla_put_failure;
9080 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9081 NL80211_REPLAY_CTR_LEN, replay_ctr))
9082 goto nla_put_failure;
9084 nla_nest_end(msg, rekey_attr);
9086 genlmsg_end(msg, hdr);
9088 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9089 nl80211_mlme_mcgrp.id, gfp);
9093 genlmsg_cancel(msg, hdr);
9097 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9098 struct net_device *netdev, int index,
9099 const u8 *bssid, bool preauth, gfp_t gfp)
9101 struct sk_buff *msg;
9102 struct nlattr *attr;
9105 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9109 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9115 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9116 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9117 goto nla_put_failure;
9119 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9121 goto nla_put_failure;
9123 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9124 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9126 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9127 goto nla_put_failure;
9129 nla_nest_end(msg, attr);
9131 genlmsg_end(msg, hdr);
9133 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9134 nl80211_mlme_mcgrp.id, gfp);
9138 genlmsg_cancel(msg, hdr);
9142 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
9143 struct net_device *netdev,
9144 struct cfg80211_chan_def *chandef, gfp_t gfp)
9146 struct sk_buff *msg;
9149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9153 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9159 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9160 goto nla_put_failure;
9162 if (nl80211_send_chandef(msg, chandef))
9163 goto nla_put_failure;
9165 genlmsg_end(msg, hdr);
9167 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9168 nl80211_mlme_mcgrp.id, gfp);
9172 genlmsg_cancel(msg, hdr);
9177 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9178 struct net_device *netdev, const u8 *peer,
9179 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9181 struct sk_buff *msg;
9182 struct nlattr *pinfoattr;
9185 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9189 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9195 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9196 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9197 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9198 goto nla_put_failure;
9200 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9202 goto nla_put_failure;
9204 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9205 goto nla_put_failure;
9207 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9208 goto nla_put_failure;
9210 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9211 goto nla_put_failure;
9213 nla_nest_end(msg, pinfoattr);
9215 genlmsg_end(msg, hdr);
9217 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9218 nl80211_mlme_mcgrp.id, gfp);
9222 genlmsg_cancel(msg, hdr);
9227 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9228 struct net_device *netdev, const u8 *peer,
9229 u32 num_packets, gfp_t gfp)
9231 struct sk_buff *msg;
9232 struct nlattr *pinfoattr;
9235 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9239 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9245 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9246 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9247 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9248 goto nla_put_failure;
9250 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9252 goto nla_put_failure;
9254 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9255 goto nla_put_failure;
9257 nla_nest_end(msg, pinfoattr);
9259 genlmsg_end(msg, hdr);
9261 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9262 nl80211_mlme_mcgrp.id, gfp);
9266 genlmsg_cancel(msg, hdr);
9270 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9271 u64 cookie, bool acked, gfp_t gfp)
9273 struct wireless_dev *wdev = dev->ieee80211_ptr;
9274 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9275 struct sk_buff *msg;
9279 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9281 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9286 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9293 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9294 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9295 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9296 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9297 goto nla_put_failure;
9299 err = genlmsg_end(msg, hdr);
9305 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9306 nl80211_mlme_mcgrp.id, gfp);
9310 genlmsg_cancel(msg, hdr);
9313 EXPORT_SYMBOL(cfg80211_probe_status);
9315 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9316 const u8 *frame, size_t len,
9317 int freq, int sig_dbm)
9319 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9320 struct sk_buff *msg;
9322 struct cfg80211_beacon_registration *reg;
9324 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9326 spin_lock_bh(&rdev->beacon_registrations_lock);
9327 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9328 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9330 spin_unlock_bh(&rdev->beacon_registrations_lock);
9334 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9336 goto nla_put_failure;
9338 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9340 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9342 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9343 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9344 goto nla_put_failure;
9346 genlmsg_end(msg, hdr);
9348 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9350 spin_unlock_bh(&rdev->beacon_registrations_lock);
9354 spin_unlock_bh(&rdev->beacon_registrations_lock);
9356 genlmsg_cancel(msg, hdr);
9359 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9362 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9363 struct cfg80211_wowlan_wakeup *wakeup,
9366 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9367 struct sk_buff *msg;
9369 int err, size = 200;
9371 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9374 size += wakeup->packet_present_len;
9376 msg = nlmsg_new(size, gfp);
9380 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9384 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9385 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9388 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9389 wdev->netdev->ifindex))
9393 struct nlattr *reasons;
9395 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9397 if (wakeup->disconnect &&
9398 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9400 if (wakeup->magic_pkt &&
9401 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9403 if (wakeup->gtk_rekey_failure &&
9404 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9406 if (wakeup->eap_identity_req &&
9407 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9409 if (wakeup->four_way_handshake &&
9410 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9412 if (wakeup->rfkill_release &&
9413 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9416 if (wakeup->pattern_idx >= 0 &&
9417 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9418 wakeup->pattern_idx))
9421 if (wakeup->packet) {
9422 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9423 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9425 if (!wakeup->packet_80211) {
9427 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9429 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9432 if (wakeup->packet_len &&
9433 nla_put_u32(msg, len_attr, wakeup->packet_len))
9436 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9441 nla_nest_end(msg, reasons);
9444 err = genlmsg_end(msg, hdr);
9448 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9449 nl80211_mlme_mcgrp.id, gfp);
9455 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9458 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9459 enum nl80211_tdls_operation oper,
9460 u16 reason_code, gfp_t gfp)
9462 struct wireless_dev *wdev = dev->ieee80211_ptr;
9463 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9464 struct sk_buff *msg;
9468 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9471 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9475 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9481 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9482 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9483 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9484 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9486 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9487 goto nla_put_failure;
9489 err = genlmsg_end(msg, hdr);
9495 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9496 nl80211_mlme_mcgrp.id, gfp);
9500 genlmsg_cancel(msg, hdr);
9503 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9505 static int nl80211_netlink_notify(struct notifier_block * nb,
9506 unsigned long state,
9509 struct netlink_notify *notify = _notify;
9510 struct cfg80211_registered_device *rdev;
9511 struct wireless_dev *wdev;
9512 struct cfg80211_beacon_registration *reg, *tmp;
9514 if (state != NETLINK_URELEASE)
9519 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
9520 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
9521 cfg80211_mlme_unregister_socket(wdev, notify->portid);
9523 spin_lock_bh(&rdev->beacon_registrations_lock);
9524 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9526 if (reg->nlportid == notify->portid) {
9527 list_del(®->list);
9532 spin_unlock_bh(&rdev->beacon_registrations_lock);
9540 static struct notifier_block nl80211_netlink_notifier = {
9541 .notifier_call = nl80211_netlink_notify,
9544 /* initialisation/exit functions */
9546 int nl80211_init(void)
9550 err = genl_register_family_with_ops(&nl80211_fam,
9551 nl80211_ops, ARRAY_SIZE(nl80211_ops));
9555 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
9559 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
9563 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
9567 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
9571 #ifdef CONFIG_NL80211_TESTMODE
9572 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
9577 err = netlink_register_notifier(&nl80211_netlink_notifier);
9583 genl_unregister_family(&nl80211_fam);
9587 void nl80211_exit(void)
9589 netlink_unregister_notifier(&nl80211_netlink_notifier);
9590 genl_unregister_family(&nl80211_fam);