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>
22 #include <net/inet_connection_sock.h>
28 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
33 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
38 /* the netlink family */
39 static struct genl_family nl80211_fam = {
40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = "nl80211", /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
44 .maxattr = NL80211_ATTR_MAX,
46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
50 /* returns ERR_PTR values */
51 static struct wireless_dev *
52 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
54 struct cfg80211_registered_device *rdev;
55 struct wireless_dev *result = NULL;
56 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
57 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
62 assert_cfg80211_lock();
64 if (!have_ifidx && !have_wdev_id)
65 return ERR_PTR(-EINVAL);
68 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
70 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
71 wiphy_idx = wdev_id >> 32;
74 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
75 struct wireless_dev *wdev;
77 if (wiphy_net(&rdev->wiphy) != netns)
80 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
83 mutex_lock(&rdev->devlist_mtx);
84 list_for_each_entry(wdev, &rdev->wdev_list, list) {
85 if (have_ifidx && wdev->netdev &&
86 wdev->netdev->ifindex == ifidx) {
90 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
95 mutex_unlock(&rdev->devlist_mtx);
103 return ERR_PTR(-ENODEV);
106 static struct cfg80211_registered_device *
107 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
109 struct cfg80211_registered_device *rdev = NULL, *tmp;
110 struct net_device *netdev;
112 assert_cfg80211_lock();
114 if (!attrs[NL80211_ATTR_WIPHY] &&
115 !attrs[NL80211_ATTR_IFINDEX] &&
116 !attrs[NL80211_ATTR_WDEV])
117 return ERR_PTR(-EINVAL);
119 if (attrs[NL80211_ATTR_WIPHY])
120 rdev = cfg80211_rdev_by_wiphy_idx(
121 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
123 if (attrs[NL80211_ATTR_WDEV]) {
124 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
125 struct wireless_dev *wdev;
128 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
130 /* make sure wdev exists */
131 mutex_lock(&tmp->devlist_mtx);
132 list_for_each_entry(wdev, &tmp->wdev_list, list) {
133 if (wdev->identifier != (u32)wdev_id)
138 mutex_unlock(&tmp->devlist_mtx);
143 if (rdev && tmp != rdev)
144 return ERR_PTR(-EINVAL);
149 if (attrs[NL80211_ATTR_IFINDEX]) {
150 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
151 netdev = dev_get_by_index(netns, ifindex);
153 if (netdev->ieee80211_ptr)
155 netdev->ieee80211_ptr->wiphy);
161 /* not wireless device -- return error */
163 return ERR_PTR(-EINVAL);
165 /* mismatch -- return error */
166 if (rdev && tmp != rdev)
167 return ERR_PTR(-EINVAL);
174 return ERR_PTR(-ENODEV);
176 if (netns != wiphy_net(&rdev->wiphy))
177 return ERR_PTR(-ENODEV);
183 * This function returns a pointer to the driver
184 * that the genl_info item that is passed refers to.
185 * If successful, it returns non-NULL and also locks
186 * the driver's mutex!
188 * This means that you need to call cfg80211_unlock_rdev()
189 * before being allowed to acquire &cfg80211_mutex!
191 * This is necessary because we need to lock the global
192 * mutex to get an item off the list safely, and then
193 * we lock the rdev mutex so it doesn't go away under us.
195 * We don't want to keep cfg80211_mutex locked
196 * for all the time in order to allow requests on
197 * other interfaces to go through at the same time.
199 * The result of this can be a PTR_ERR and hence must
200 * be checked with IS_ERR() for errors.
202 static struct cfg80211_registered_device *
203 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
205 struct cfg80211_registered_device *rdev;
207 mutex_lock(&cfg80211_mutex);
208 rdev = __cfg80211_rdev_from_attrs(netns, info->attrs);
210 /* if it is not an error we grab the lock on
211 * it to assure it won't be going away while
212 * we operate on it */
214 mutex_lock(&rdev->mtx);
216 mutex_unlock(&cfg80211_mutex);
221 /* policy for the attributes */
222 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
223 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
224 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
226 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
228 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
231 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
232 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
234 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
235 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
236 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
237 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
238 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
240 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
241 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
242 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
244 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
245 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
247 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
248 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
249 .len = WLAN_MAX_KEY_LEN },
250 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
251 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
252 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
253 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
254 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
256 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
257 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
258 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
259 .len = IEEE80211_MAX_DATA_LEN },
260 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
262 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
263 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
264 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
265 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
266 .len = NL80211_MAX_SUPP_RATES },
267 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
268 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
269 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
270 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
271 .len = IEEE80211_MAX_MESH_ID_LEN },
272 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
274 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
275 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
277 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
278 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
279 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
280 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
281 .len = NL80211_MAX_SUPP_RATES },
282 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
284 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
287 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
289 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
290 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
291 .len = IEEE80211_MAX_DATA_LEN },
292 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
293 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
295 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
296 .len = IEEE80211_MAX_SSID_LEN },
297 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
298 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
299 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
300 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
301 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
302 [NL80211_ATTR_STA_FLAGS2] = {
303 .len = sizeof(struct nl80211_sta_flag_update),
305 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
306 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
307 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
308 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
309 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
310 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
311 [NL80211_ATTR_PID] = { .type = NLA_U32 },
312 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
313 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
314 .len = WLAN_PMKID_LEN },
315 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
316 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
317 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
318 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
319 .len = IEEE80211_MAX_DATA_LEN },
320 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
321 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
322 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
323 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
324 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
325 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
326 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
327 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
328 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
329 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
330 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
331 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
332 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
333 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
334 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
335 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
336 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
337 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
338 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
339 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
340 .len = IEEE80211_MAX_DATA_LEN },
341 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
343 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
344 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
345 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
346 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
347 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
348 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
349 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
350 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
351 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
352 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
353 .len = IEEE80211_MAX_DATA_LEN },
354 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
355 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
356 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
357 .len = NL80211_HT_CAPABILITY_LEN
359 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
360 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
361 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
362 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
363 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
364 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
365 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
366 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
367 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
368 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
369 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
370 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
371 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
372 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
375 /* policy for the key attributes */
376 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
377 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
378 [NL80211_KEY_IDX] = { .type = NLA_U8 },
379 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
380 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
381 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
382 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
383 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
384 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
387 /* policy for the key default flags */
388 static const struct nla_policy
389 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
390 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
391 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
394 /* policy for WoWLAN attributes */
395 static const struct nla_policy
396 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
397 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
398 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
399 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
400 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
401 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
402 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
403 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
404 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
405 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
408 static const struct nla_policy
409 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
410 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
411 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
412 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
413 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
414 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
415 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
416 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
417 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
419 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
420 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
422 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
423 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
424 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
427 /* policy for GTK rekey offload attributes */
428 static const struct nla_policy
429 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
430 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
431 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
432 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
435 static const struct nla_policy
436 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
437 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
438 .len = IEEE80211_MAX_SSID_LEN },
439 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
442 /* ifidx get helper */
443 static int nl80211_get_ifidx(struct netlink_callback *cb)
447 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
448 nl80211_fam.attrbuf, nl80211_fam.maxattr,
453 if (!nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX])
456 res = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_IFINDEX]);
462 static int nl80211_prepare_netdev_dump(struct sk_buff *skb,
463 struct netlink_callback *cb,
464 struct cfg80211_registered_device **rdev,
465 struct net_device **dev)
467 int ifidx = cb->args[0];
471 ifidx = nl80211_get_ifidx(cb);
479 *dev = __dev_get_by_index(sock_net(skb->sk), ifidx);
485 *rdev = cfg80211_get_dev_from_ifindex(sock_net(skb->sk), ifidx);
487 err = PTR_ERR(*rdev);
497 static void nl80211_finish_netdev_dump(struct cfg80211_registered_device *rdev)
499 cfg80211_unlock_rdev(rdev);
504 static bool is_valid_ie_attr(const struct nlattr *attr)
512 pos = nla_data(attr);
533 /* message building helper */
534 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
537 /* since there is no private header just add the generic one */
538 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
541 static int nl80211_msg_put_channel(struct sk_buff *msg,
542 struct ieee80211_channel *chan)
544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
546 goto nla_put_failure;
548 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
549 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
550 goto nla_put_failure;
551 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
552 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
553 goto nla_put_failure;
554 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
556 goto nla_put_failure;
557 if ((chan->flags & IEEE80211_CHAN_RADAR) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
559 goto nla_put_failure;
561 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
562 DBM_TO_MBM(chan->max_power)))
563 goto nla_put_failure;
571 /* netlink command implementations */
578 bool def_uni, def_multi;
581 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
583 struct nlattr *tb[NL80211_KEY_MAX + 1];
584 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
589 k->def = !!tb[NL80211_KEY_DEFAULT];
590 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
599 if (tb[NL80211_KEY_IDX])
600 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
602 if (tb[NL80211_KEY_DATA]) {
603 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
604 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
607 if (tb[NL80211_KEY_SEQ]) {
608 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
609 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
612 if (tb[NL80211_KEY_CIPHER])
613 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
615 if (tb[NL80211_KEY_TYPE]) {
616 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
617 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
621 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
622 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
623 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
624 tb[NL80211_KEY_DEFAULT_TYPES],
625 nl80211_key_default_policy);
629 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
630 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
636 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
638 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
639 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
640 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
643 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
644 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
645 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
648 if (info->attrs[NL80211_ATTR_KEY_IDX])
649 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
651 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
652 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
654 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
655 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
664 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
665 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
666 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
670 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
671 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
672 int err = nla_parse_nested(
673 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
674 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
675 nl80211_key_default_policy);
679 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
680 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
686 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
690 memset(k, 0, sizeof(*k));
694 if (info->attrs[NL80211_ATTR_KEY])
695 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
697 err = nl80211_parse_key_old(info, k);
702 if (k->def && k->defmgmt)
706 if (k->def_uni || !k->def_multi)
712 if (k->idx < 4 || k->idx > 5)
715 if (k->idx < 0 || k->idx > 3)
718 if (k->idx < 0 || k->idx > 5)
726 static struct cfg80211_cached_keys *
727 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
728 struct nlattr *keys, bool *no_ht)
730 struct key_parse parse;
732 struct cfg80211_cached_keys *result;
733 int rem, err, def = 0;
735 result = kzalloc(sizeof(*result), GFP_KERNEL);
737 return ERR_PTR(-ENOMEM);
740 result->defmgmt = -1;
742 nla_for_each_nested(key, keys, rem) {
743 memset(&parse, 0, sizeof(parse));
746 err = nl80211_parse_key_new(key, &parse);
752 if (parse.idx < 0 || parse.idx > 4)
758 result->def = parse.idx;
759 if (!parse.def_uni || !parse.def_multi)
761 } else if (parse.defmgmt)
763 err = cfg80211_validate_key_settings(rdev, &parse.p,
764 parse.idx, false, NULL);
767 result->params[parse.idx].cipher = parse.p.cipher;
768 result->params[parse.idx].key_len = parse.p.key_len;
769 result->params[parse.idx].key = result->data[parse.idx];
770 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
772 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
773 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
785 static int nl80211_key_allowed(struct wireless_dev *wdev)
787 ASSERT_WDEV_LOCK(wdev);
789 switch (wdev->iftype) {
790 case NL80211_IFTYPE_AP:
791 case NL80211_IFTYPE_AP_VLAN:
792 case NL80211_IFTYPE_P2P_GO:
793 case NL80211_IFTYPE_MESH_POINT:
795 case NL80211_IFTYPE_ADHOC:
796 if (!wdev->current_bss)
799 case NL80211_IFTYPE_STATION:
800 case NL80211_IFTYPE_P2P_CLIENT:
801 if (wdev->sme_state != CFG80211_SME_CONNECTED)
811 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
813 struct nlattr *nl_modes = nla_nest_start(msg, attr);
817 goto nla_put_failure;
821 if ((ifmodes & 1) && nla_put_flag(msg, i))
822 goto nla_put_failure;
827 nla_nest_end(msg, nl_modes);
834 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
837 struct nlattr *nl_combis;
840 nl_combis = nla_nest_start(msg,
841 NL80211_ATTR_INTERFACE_COMBINATIONS);
843 goto nla_put_failure;
845 for (i = 0; i < wiphy->n_iface_combinations; i++) {
846 const struct ieee80211_iface_combination *c;
847 struct nlattr *nl_combi, *nl_limits;
849 c = &wiphy->iface_combinations[i];
851 nl_combi = nla_nest_start(msg, i + 1);
853 goto nla_put_failure;
855 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
857 goto nla_put_failure;
859 for (j = 0; j < c->n_limits; j++) {
860 struct nlattr *nl_limit;
862 nl_limit = nla_nest_start(msg, j + 1);
864 goto nla_put_failure;
865 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
867 goto nla_put_failure;
868 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
870 goto nla_put_failure;
871 nla_nest_end(msg, nl_limit);
874 nla_nest_end(msg, nl_limits);
876 if (c->beacon_int_infra_match &&
877 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
878 goto nla_put_failure;
879 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
880 c->num_different_channels) ||
881 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
883 goto nla_put_failure;
885 nla_nest_end(msg, nl_combi);
888 nla_nest_end(msg, nl_combis);
895 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
896 struct cfg80211_registered_device *dev)
899 struct nlattr *nl_bands, *nl_band;
900 struct nlattr *nl_freqs, *nl_freq;
901 struct nlattr *nl_rates, *nl_rate;
902 struct nlattr *nl_cmds;
903 enum ieee80211_band band;
904 struct ieee80211_channel *chan;
905 struct ieee80211_rate *rate;
907 const struct ieee80211_txrx_stypes *mgmt_stypes =
908 dev->wiphy.mgmt_stypes;
910 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
914 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
915 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
916 nla_put_u32(msg, NL80211_ATTR_GENERATION,
917 cfg80211_rdev_list_generation) ||
918 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
919 dev->wiphy.retry_short) ||
920 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
921 dev->wiphy.retry_long) ||
922 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
923 dev->wiphy.frag_threshold) ||
924 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
925 dev->wiphy.rts_threshold) ||
926 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
927 dev->wiphy.coverage_class) ||
928 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
929 dev->wiphy.max_scan_ssids) ||
930 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
931 dev->wiphy.max_sched_scan_ssids) ||
932 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
933 dev->wiphy.max_scan_ie_len) ||
934 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
935 dev->wiphy.max_sched_scan_ie_len) ||
936 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
937 dev->wiphy.max_match_sets))
938 goto nla_put_failure;
940 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
941 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
942 goto nla_put_failure;
943 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
944 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
945 goto nla_put_failure;
946 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
947 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
948 goto nla_put_failure;
949 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
950 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
951 goto nla_put_failure;
952 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
953 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
954 goto nla_put_failure;
955 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
956 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
957 goto nla_put_failure;
959 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
960 sizeof(u32) * dev->wiphy.n_cipher_suites,
961 dev->wiphy.cipher_suites))
962 goto nla_put_failure;
964 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
965 dev->wiphy.max_num_pmkids))
966 goto nla_put_failure;
968 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
969 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
970 goto nla_put_failure;
972 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
973 dev->wiphy.available_antennas_tx) ||
974 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
975 dev->wiphy.available_antennas_rx))
976 goto nla_put_failure;
978 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
979 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
980 dev->wiphy.probe_resp_offload))
981 goto nla_put_failure;
983 if ((dev->wiphy.available_antennas_tx ||
984 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
985 u32 tx_ant = 0, rx_ant = 0;
987 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
989 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
991 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
993 goto nla_put_failure;
997 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
998 dev->wiphy.interface_modes))
999 goto nla_put_failure;
1001 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1003 goto nla_put_failure;
1005 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1006 if (!dev->wiphy.bands[band])
1009 nl_band = nla_nest_start(msg, band);
1011 goto nla_put_failure;
1014 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
1015 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1016 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
1017 &dev->wiphy.bands[band]->ht_cap.mcs) ||
1018 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1019 dev->wiphy.bands[band]->ht_cap.cap) ||
1020 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1021 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
1022 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1023 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
1024 goto nla_put_failure;
1027 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1028 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1029 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1030 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1031 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1032 dev->wiphy.bands[band]->vht_cap.cap)))
1033 goto nla_put_failure;
1035 /* add frequencies */
1036 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1038 goto nla_put_failure;
1040 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1041 nl_freq = nla_nest_start(msg, i);
1043 goto nla_put_failure;
1045 chan = &dev->wiphy.bands[band]->channels[i];
1047 if (nl80211_msg_put_channel(msg, chan))
1048 goto nla_put_failure;
1050 nla_nest_end(msg, nl_freq);
1053 nla_nest_end(msg, nl_freqs);
1056 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1058 goto nla_put_failure;
1060 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1061 nl_rate = nla_nest_start(msg, i);
1063 goto nla_put_failure;
1065 rate = &dev->wiphy.bands[band]->bitrates[i];
1066 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1068 goto nla_put_failure;
1069 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1071 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1072 goto nla_put_failure;
1074 nla_nest_end(msg, nl_rate);
1077 nla_nest_end(msg, nl_rates);
1079 nla_nest_end(msg, nl_band);
1081 nla_nest_end(msg, nl_bands);
1083 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1085 goto nla_put_failure;
1088 #define CMD(op, n) \
1090 if (dev->ops->op) { \
1092 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1093 goto nla_put_failure; \
1097 CMD(add_virtual_intf, NEW_INTERFACE);
1098 CMD(change_virtual_intf, SET_INTERFACE);
1099 CMD(add_key, NEW_KEY);
1100 CMD(start_ap, START_AP);
1101 CMD(add_station, NEW_STATION);
1102 CMD(add_mpath, NEW_MPATH);
1103 CMD(update_mesh_config, SET_MESH_CONFIG);
1104 CMD(change_bss, SET_BSS);
1105 CMD(auth, AUTHENTICATE);
1106 CMD(assoc, ASSOCIATE);
1107 CMD(deauth, DEAUTHENTICATE);
1108 CMD(disassoc, DISASSOCIATE);
1109 CMD(join_ibss, JOIN_IBSS);
1110 CMD(join_mesh, JOIN_MESH);
1111 CMD(set_pmksa, SET_PMKSA);
1112 CMD(del_pmksa, DEL_PMKSA);
1113 CMD(flush_pmksa, FLUSH_PMKSA);
1114 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1115 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1116 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1117 CMD(mgmt_tx, FRAME);
1118 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1119 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1121 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1122 goto nla_put_failure;
1124 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1125 dev->ops->join_mesh) {
1127 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1128 goto nla_put_failure;
1130 CMD(set_wds_peer, SET_WDS_PEER);
1131 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1132 CMD(tdls_mgmt, TDLS_MGMT);
1133 CMD(tdls_oper, TDLS_OPER);
1135 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1136 CMD(sched_scan_start, START_SCHED_SCAN);
1137 CMD(probe_client, PROBE_CLIENT);
1138 CMD(set_noack_map, SET_NOACK_MAP);
1139 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1141 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1142 goto nla_put_failure;
1144 CMD(start_p2p_device, START_P2P_DEVICE);
1145 CMD(set_mcast_rate, SET_MCAST_RATE);
1147 #ifdef CONFIG_NL80211_TESTMODE
1148 CMD(testmode_cmd, TESTMODE);
1153 if (dev->ops->connect || dev->ops->auth) {
1155 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1156 goto nla_put_failure;
1159 if (dev->ops->disconnect || dev->ops->deauth) {
1161 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1162 goto nla_put_failure;
1165 nla_nest_end(msg, nl_cmds);
1167 if (dev->ops->remain_on_channel &&
1168 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1169 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1170 dev->wiphy.max_remain_on_channel_duration))
1171 goto nla_put_failure;
1173 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1174 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1175 goto nla_put_failure;
1179 struct nlattr *nl_ftypes, *nl_ifs;
1180 enum nl80211_iftype ift;
1182 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1184 goto nla_put_failure;
1186 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1187 nl_ftypes = nla_nest_start(msg, ift);
1189 goto nla_put_failure;
1191 stypes = mgmt_stypes[ift].tx;
1194 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1195 (i << 4) | IEEE80211_FTYPE_MGMT))
1196 goto nla_put_failure;
1200 nla_nest_end(msg, nl_ftypes);
1203 nla_nest_end(msg, nl_ifs);
1205 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1207 goto nla_put_failure;
1209 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1210 nl_ftypes = nla_nest_start(msg, ift);
1212 goto nla_put_failure;
1214 stypes = mgmt_stypes[ift].rx;
1217 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1218 (i << 4) | IEEE80211_FTYPE_MGMT))
1219 goto nla_put_failure;
1223 nla_nest_end(msg, nl_ftypes);
1225 nla_nest_end(msg, nl_ifs);
1229 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1230 struct nlattr *nl_wowlan;
1232 nl_wowlan = nla_nest_start(msg,
1233 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1235 goto nla_put_failure;
1237 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1238 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1239 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1240 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1241 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1242 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1243 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1244 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1245 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1246 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1247 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1248 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1249 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1250 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1251 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1253 goto nla_put_failure;
1254 if (dev->wiphy.wowlan.n_patterns) {
1255 struct nl80211_wowlan_pattern_support pat = {
1256 .max_patterns = dev->wiphy.wowlan.n_patterns,
1258 dev->wiphy.wowlan.pattern_min_len,
1260 dev->wiphy.wowlan.pattern_max_len,
1262 dev->wiphy.wowlan.max_pkt_offset,
1264 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1266 goto nla_put_failure;
1269 nla_nest_end(msg, nl_wowlan);
1273 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1274 dev->wiphy.software_iftypes))
1275 goto nla_put_failure;
1277 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1278 goto nla_put_failure;
1280 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1281 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1282 dev->wiphy.ap_sme_capa))
1283 goto nla_put_failure;
1285 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1286 dev->wiphy.features))
1287 goto nla_put_failure;
1289 if (dev->wiphy.ht_capa_mod_mask &&
1290 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1291 sizeof(*dev->wiphy.ht_capa_mod_mask),
1292 dev->wiphy.ht_capa_mod_mask))
1293 goto nla_put_failure;
1295 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1296 dev->wiphy.max_acl_mac_addrs &&
1297 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1298 dev->wiphy.max_acl_mac_addrs))
1299 goto nla_put_failure;
1301 return genlmsg_end(msg, hdr);
1304 genlmsg_cancel(msg, hdr);
1308 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1311 int start = cb->args[0];
1312 struct cfg80211_registered_device *dev;
1314 mutex_lock(&cfg80211_mutex);
1315 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1316 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1320 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1321 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1327 mutex_unlock(&cfg80211_mutex);
1334 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1336 struct sk_buff *msg;
1337 struct cfg80211_registered_device *dev = info->user_ptr[0];
1339 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1343 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1348 return genlmsg_reply(msg, info);
1351 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1352 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1353 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1354 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1355 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1356 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1359 static int parse_txq_params(struct nlattr *tb[],
1360 struct ieee80211_txq_params *txq_params)
1362 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1363 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1364 !tb[NL80211_TXQ_ATTR_AIFS])
1367 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1368 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1369 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1370 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1371 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1373 if (txq_params->ac >= NL80211_NUM_ACS)
1379 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1382 * You can only set the channel explicitly for WDS interfaces,
1383 * all others have their channel managed via their respective
1384 * "establish a connection" command (connect, join, ...)
1386 * For AP/GO and mesh mode, the channel can be set with the
1387 * channel userspace API, but is only stored and passed to the
1388 * low-level driver when the AP starts or the mesh is joined.
1389 * This is for backward compatibility, userspace can also give
1390 * the channel in the start-ap or join-mesh commands instead.
1392 * Monitors are special as they are normally slaved to
1393 * whatever else is going on, so they have their own special
1394 * operation to set the monitor channel if possible.
1397 wdev->iftype == NL80211_IFTYPE_AP ||
1398 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1399 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1400 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1403 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1404 struct genl_info *info,
1405 struct cfg80211_chan_def *chandef)
1409 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1412 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1414 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1415 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1416 chandef->center_freq1 = control_freq;
1417 chandef->center_freq2 = 0;
1419 /* Primary channel not allowed */
1420 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1423 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1424 enum nl80211_channel_type chantype;
1426 chantype = nla_get_u32(
1427 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1430 case NL80211_CHAN_NO_HT:
1431 case NL80211_CHAN_HT20:
1432 case NL80211_CHAN_HT40PLUS:
1433 case NL80211_CHAN_HT40MINUS:
1434 cfg80211_chandef_create(chandef, chandef->chan,
1440 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1442 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1443 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1444 chandef->center_freq1 =
1446 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1447 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1448 chandef->center_freq2 =
1450 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1453 if (!cfg80211_chandef_valid(chandef))
1456 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1457 IEEE80211_CHAN_DISABLED))
1463 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1464 struct wireless_dev *wdev,
1465 struct genl_info *info)
1467 struct cfg80211_chan_def chandef;
1469 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1472 iftype = wdev->iftype;
1474 if (!nl80211_can_set_dev_channel(wdev))
1477 result = nl80211_parse_chandef(rdev, info, &chandef);
1481 mutex_lock(&rdev->devlist_mtx);
1483 case NL80211_IFTYPE_AP:
1484 case NL80211_IFTYPE_P2P_GO:
1485 if (wdev->beacon_interval) {
1489 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1493 wdev->preset_chandef = chandef;
1496 case NL80211_IFTYPE_MESH_POINT:
1497 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1499 case NL80211_IFTYPE_MONITOR:
1500 result = cfg80211_set_monitor_channel(rdev, &chandef);
1505 mutex_unlock(&rdev->devlist_mtx);
1510 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1513 struct net_device *netdev = info->user_ptr[1];
1515 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1518 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1521 struct net_device *dev = info->user_ptr[1];
1522 struct wireless_dev *wdev = dev->ieee80211_ptr;
1525 if (!info->attrs[NL80211_ATTR_MAC])
1528 if (netif_running(dev))
1531 if (!rdev->ops->set_wds_peer)
1534 if (wdev->iftype != NL80211_IFTYPE_WDS)
1537 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1538 return rdev_set_wds_peer(rdev, dev, bssid);
1542 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1544 struct cfg80211_registered_device *rdev;
1545 struct net_device *netdev = NULL;
1546 struct wireless_dev *wdev;
1547 int result = 0, rem_txq_params = 0;
1548 struct nlattr *nl_txq_params;
1550 u8 retry_short = 0, retry_long = 0;
1551 u32 frag_threshold = 0, rts_threshold = 0;
1552 u8 coverage_class = 0;
1555 * Try to find the wiphy and netdev. Normally this
1556 * function shouldn't need the netdev, but this is
1557 * done for backward compatibility -- previously
1558 * setting the channel was done per wiphy, but now
1559 * it is per netdev. Previous userland like hostapd
1560 * also passed a netdev to set_wiphy, so that it is
1561 * possible to let that go to the right netdev!
1563 mutex_lock(&cfg80211_mutex);
1565 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1566 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1568 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1569 if (netdev && netdev->ieee80211_ptr) {
1570 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1571 mutex_lock(&rdev->mtx);
1577 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1580 mutex_unlock(&cfg80211_mutex);
1581 return PTR_ERR(rdev);
1587 mutex_lock(&rdev->mtx);
1589 wdev = netdev->ieee80211_ptr;
1592 * end workaround code, by now the rdev is available
1593 * and locked, and wdev may or may not be NULL.
1596 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1597 result = cfg80211_dev_rename(
1598 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1600 mutex_unlock(&cfg80211_mutex);
1605 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1606 struct ieee80211_txq_params txq_params;
1607 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1609 if (!rdev->ops->set_txq_params) {
1610 result = -EOPNOTSUPP;
1619 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1620 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1625 if (!netif_running(netdev)) {
1630 nla_for_each_nested(nl_txq_params,
1631 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1633 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1634 nla_data(nl_txq_params),
1635 nla_len(nl_txq_params),
1637 result = parse_txq_params(tb, &txq_params);
1641 result = rdev_set_txq_params(rdev, netdev,
1648 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1649 result = __nl80211_set_channel(rdev,
1650 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1656 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1657 struct wireless_dev *txp_wdev = wdev;
1658 enum nl80211_tx_power_setting type;
1661 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1664 if (!rdev->ops->set_tx_power) {
1665 result = -EOPNOTSUPP;
1669 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1670 type = nla_get_u32(info->attrs[idx]);
1672 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1673 (type != NL80211_TX_POWER_AUTOMATIC)) {
1678 if (type != NL80211_TX_POWER_AUTOMATIC) {
1679 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1680 mbm = nla_get_u32(info->attrs[idx]);
1683 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1688 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1689 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1691 if ((!rdev->wiphy.available_antennas_tx &&
1692 !rdev->wiphy.available_antennas_rx) ||
1693 !rdev->ops->set_antenna) {
1694 result = -EOPNOTSUPP;
1698 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1699 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1701 /* reject antenna configurations which don't match the
1702 * available antenna masks, except for the "all" mask */
1703 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1704 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1709 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1710 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1712 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1719 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1720 retry_short = nla_get_u8(
1721 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1722 if (retry_short == 0) {
1726 changed |= WIPHY_PARAM_RETRY_SHORT;
1729 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1730 retry_long = nla_get_u8(
1731 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1732 if (retry_long == 0) {
1736 changed |= WIPHY_PARAM_RETRY_LONG;
1739 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1740 frag_threshold = nla_get_u32(
1741 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1742 if (frag_threshold < 256) {
1746 if (frag_threshold != (u32) -1) {
1748 * Fragments (apart from the last one) are required to
1749 * have even length. Make the fragmentation code
1750 * simpler by stripping LSB should someone try to use
1751 * odd threshold value.
1753 frag_threshold &= ~0x1;
1755 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1758 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1759 rts_threshold = nla_get_u32(
1760 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1761 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1764 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1765 coverage_class = nla_get_u8(
1766 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1767 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1771 u8 old_retry_short, old_retry_long;
1772 u32 old_frag_threshold, old_rts_threshold;
1773 u8 old_coverage_class;
1775 if (!rdev->ops->set_wiphy_params) {
1776 result = -EOPNOTSUPP;
1780 old_retry_short = rdev->wiphy.retry_short;
1781 old_retry_long = rdev->wiphy.retry_long;
1782 old_frag_threshold = rdev->wiphy.frag_threshold;
1783 old_rts_threshold = rdev->wiphy.rts_threshold;
1784 old_coverage_class = rdev->wiphy.coverage_class;
1786 if (changed & WIPHY_PARAM_RETRY_SHORT)
1787 rdev->wiphy.retry_short = retry_short;
1788 if (changed & WIPHY_PARAM_RETRY_LONG)
1789 rdev->wiphy.retry_long = retry_long;
1790 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1791 rdev->wiphy.frag_threshold = frag_threshold;
1792 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1793 rdev->wiphy.rts_threshold = rts_threshold;
1794 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1795 rdev->wiphy.coverage_class = coverage_class;
1797 result = rdev_set_wiphy_params(rdev, changed);
1799 rdev->wiphy.retry_short = old_retry_short;
1800 rdev->wiphy.retry_long = old_retry_long;
1801 rdev->wiphy.frag_threshold = old_frag_threshold;
1802 rdev->wiphy.rts_threshold = old_rts_threshold;
1803 rdev->wiphy.coverage_class = old_coverage_class;
1808 mutex_unlock(&rdev->mtx);
1814 static inline u64 wdev_id(struct wireless_dev *wdev)
1816 return (u64)wdev->identifier |
1817 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1820 static int nl80211_send_chandef(struct sk_buff *msg,
1821 struct cfg80211_chan_def *chandef)
1823 WARN_ON(!cfg80211_chandef_valid(chandef));
1825 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1826 chandef->chan->center_freq))
1828 switch (chandef->width) {
1829 case NL80211_CHAN_WIDTH_20_NOHT:
1830 case NL80211_CHAN_WIDTH_20:
1831 case NL80211_CHAN_WIDTH_40:
1832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1833 cfg80211_get_chandef_type(chandef)))
1839 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1841 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1843 if (chandef->center_freq2 &&
1844 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
1849 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1850 struct cfg80211_registered_device *rdev,
1851 struct wireless_dev *wdev)
1853 struct net_device *dev = wdev->netdev;
1856 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1861 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1862 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1863 goto nla_put_failure;
1865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1866 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1867 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1868 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1869 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1870 rdev->devlist_generation ^
1871 (cfg80211_rdev_list_generation << 2)))
1872 goto nla_put_failure;
1874 if (rdev->ops->get_channel) {
1876 struct cfg80211_chan_def chandef;
1878 ret = rdev_get_channel(rdev, wdev, &chandef);
1880 if (nl80211_send_chandef(msg, &chandef))
1881 goto nla_put_failure;
1885 if (wdev->ssid_len) {
1886 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1887 goto nla_put_failure;
1890 return genlmsg_end(msg, hdr);
1893 genlmsg_cancel(msg, hdr);
1897 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1901 int wp_start = cb->args[0];
1902 int if_start = cb->args[1];
1903 struct cfg80211_registered_device *rdev;
1904 struct wireless_dev *wdev;
1906 mutex_lock(&cfg80211_mutex);
1907 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1908 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1910 if (wp_idx < wp_start) {
1916 mutex_lock(&rdev->devlist_mtx);
1917 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1918 if (if_idx < if_start) {
1922 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1923 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1925 mutex_unlock(&rdev->devlist_mtx);
1930 mutex_unlock(&rdev->devlist_mtx);
1935 mutex_unlock(&cfg80211_mutex);
1937 cb->args[0] = wp_idx;
1938 cb->args[1] = if_idx;
1943 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1945 struct sk_buff *msg;
1946 struct cfg80211_registered_device *dev = info->user_ptr[0];
1947 struct wireless_dev *wdev = info->user_ptr[1];
1949 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1953 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1959 return genlmsg_reply(msg, info);
1962 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1963 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1964 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1965 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1966 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1967 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1970 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1972 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
1980 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
1981 nla, mntr_flags_policy))
1984 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
1986 *mntrflags |= (1<<flag);
1991 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
1992 struct net_device *netdev, u8 use_4addr,
1993 enum nl80211_iftype iftype)
1996 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2002 case NL80211_IFTYPE_AP_VLAN:
2003 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2006 case NL80211_IFTYPE_STATION:
2007 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2017 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2020 struct vif_params params;
2022 enum nl80211_iftype otype, ntype;
2023 struct net_device *dev = info->user_ptr[1];
2024 u32 _flags, *flags = NULL;
2025 bool change = false;
2027 memset(¶ms, 0, sizeof(params));
2029 otype = ntype = dev->ieee80211_ptr->iftype;
2031 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2032 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2035 if (ntype > NL80211_IFTYPE_MAX)
2039 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2040 struct wireless_dev *wdev = dev->ieee80211_ptr;
2042 if (ntype != NL80211_IFTYPE_MESH_POINT)
2044 if (netif_running(dev))
2048 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2049 IEEE80211_MAX_MESH_ID_LEN);
2050 wdev->mesh_id_up_len =
2051 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2052 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2053 wdev->mesh_id_up_len);
2057 if (info->attrs[NL80211_ATTR_4ADDR]) {
2058 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2060 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2064 params.use_4addr = -1;
2067 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2068 if (ntype != NL80211_IFTYPE_MONITOR)
2070 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2080 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2084 if (!err && params.use_4addr != -1)
2085 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2090 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2093 struct vif_params params;
2094 struct wireless_dev *wdev;
2095 struct sk_buff *msg;
2097 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2100 memset(¶ms, 0, sizeof(params));
2102 if (!info->attrs[NL80211_ATTR_IFNAME])
2105 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2106 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2107 if (type > NL80211_IFTYPE_MAX)
2111 if (!rdev->ops->add_virtual_intf ||
2112 !(rdev->wiphy.interface_modes & (1 << type)))
2115 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2116 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2118 if (!is_valid_ether_addr(params.macaddr))
2119 return -EADDRNOTAVAIL;
2122 if (info->attrs[NL80211_ATTR_4ADDR]) {
2123 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2124 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2129 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2133 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2134 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2136 wdev = rdev_add_virtual_intf(rdev,
2137 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2138 type, err ? NULL : &flags, ¶ms);
2141 return PTR_ERR(wdev);
2145 case NL80211_IFTYPE_MESH_POINT:
2146 if (!info->attrs[NL80211_ATTR_MESH_ID])
2149 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2150 IEEE80211_MAX_MESH_ID_LEN);
2151 wdev->mesh_id_up_len =
2152 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2153 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2154 wdev->mesh_id_up_len);
2157 case NL80211_IFTYPE_P2P_DEVICE:
2159 * P2P Device doesn't have a netdev, so doesn't go
2160 * through the netdev notifier and must be added here
2162 mutex_init(&wdev->mtx);
2163 INIT_LIST_HEAD(&wdev->event_list);
2164 spin_lock_init(&wdev->event_lock);
2165 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2166 spin_lock_init(&wdev->mgmt_registrations_lock);
2168 mutex_lock(&rdev->devlist_mtx);
2169 wdev->identifier = ++rdev->wdev_id;
2170 list_add_rcu(&wdev->list, &rdev->wdev_list);
2171 rdev->devlist_generation++;
2172 mutex_unlock(&rdev->devlist_mtx);
2178 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2184 return genlmsg_reply(msg, info);
2187 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2190 struct wireless_dev *wdev = info->user_ptr[1];
2192 if (!rdev->ops->del_virtual_intf)
2196 * If we remove a wireless device without a netdev then clear
2197 * user_ptr[1] so that nl80211_post_doit won't dereference it
2198 * to check if it needs to do dev_put(). Otherwise it crashes
2199 * since the wdev has been freed, unlike with a netdev where
2200 * we need the dev_put() for the netdev to really be freed.
2203 info->user_ptr[1] = NULL;
2205 return rdev_del_virtual_intf(rdev, wdev);
2208 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2210 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2211 struct net_device *dev = info->user_ptr[1];
2214 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2217 if (!rdev->ops->set_noack_map)
2220 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2222 return rdev_set_noack_map(rdev, dev, noack_map);
2225 struct get_key_cookie {
2226 struct sk_buff *msg;
2231 static void get_key_callback(void *c, struct key_params *params)
2234 struct get_key_cookie *cookie = c;
2237 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2238 params->key_len, params->key)) ||
2240 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2241 params->seq_len, params->seq)) ||
2243 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2245 goto nla_put_failure;
2247 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2249 goto nla_put_failure;
2252 nla_put(cookie->msg, NL80211_KEY_DATA,
2253 params->key_len, params->key)) ||
2255 nla_put(cookie->msg, NL80211_KEY_SEQ,
2256 params->seq_len, params->seq)) ||
2258 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2260 goto nla_put_failure;
2262 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2263 goto nla_put_failure;
2265 nla_nest_end(cookie->msg, key);
2272 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2276 struct net_device *dev = info->user_ptr[1];
2278 const u8 *mac_addr = NULL;
2280 struct get_key_cookie cookie = {
2284 struct sk_buff *msg;
2286 if (info->attrs[NL80211_ATTR_KEY_IDX])
2287 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2292 if (info->attrs[NL80211_ATTR_MAC])
2293 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2295 pairwise = !!mac_addr;
2296 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2297 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2298 if (kt >= NUM_NL80211_KEYTYPES)
2300 if (kt != NL80211_KEYTYPE_GROUP &&
2301 kt != NL80211_KEYTYPE_PAIRWISE)
2303 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2306 if (!rdev->ops->get_key)
2309 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2313 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2314 NL80211_CMD_NEW_KEY);
2316 return PTR_ERR(hdr);
2319 cookie.idx = key_idx;
2321 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2322 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2323 goto nla_put_failure;
2325 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2326 goto nla_put_failure;
2328 if (pairwise && mac_addr &&
2329 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2332 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2339 goto nla_put_failure;
2341 genlmsg_end(msg, hdr);
2342 return genlmsg_reply(msg, info);
2351 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2354 struct key_parse key;
2356 struct net_device *dev = info->user_ptr[1];
2358 err = nl80211_parse_key(info, &key);
2365 /* only support setting default key */
2366 if (!key.def && !key.defmgmt)
2369 wdev_lock(dev->ieee80211_ptr);
2372 if (!rdev->ops->set_default_key) {
2377 err = nl80211_key_allowed(dev->ieee80211_ptr);
2381 err = rdev_set_default_key(rdev, dev, key.idx,
2382 key.def_uni, key.def_multi);
2387 #ifdef CONFIG_CFG80211_WEXT
2388 dev->ieee80211_ptr->wext.default_key = key.idx;
2391 if (key.def_uni || !key.def_multi) {
2396 if (!rdev->ops->set_default_mgmt_key) {
2401 err = nl80211_key_allowed(dev->ieee80211_ptr);
2405 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2409 #ifdef CONFIG_CFG80211_WEXT
2410 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2415 wdev_unlock(dev->ieee80211_ptr);
2420 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2424 struct net_device *dev = info->user_ptr[1];
2425 struct key_parse key;
2426 const u8 *mac_addr = NULL;
2428 err = nl80211_parse_key(info, &key);
2435 if (info->attrs[NL80211_ATTR_MAC])
2436 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2438 if (key.type == -1) {
2440 key.type = NL80211_KEYTYPE_PAIRWISE;
2442 key.type = NL80211_KEYTYPE_GROUP;
2446 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2447 key.type != NL80211_KEYTYPE_GROUP)
2450 if (!rdev->ops->add_key)
2453 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2454 key.type == NL80211_KEYTYPE_PAIRWISE,
2458 wdev_lock(dev->ieee80211_ptr);
2459 err = nl80211_key_allowed(dev->ieee80211_ptr);
2461 err = rdev_add_key(rdev, dev, key.idx,
2462 key.type == NL80211_KEYTYPE_PAIRWISE,
2464 wdev_unlock(dev->ieee80211_ptr);
2469 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2471 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2473 struct net_device *dev = info->user_ptr[1];
2474 u8 *mac_addr = NULL;
2475 struct key_parse key;
2477 err = nl80211_parse_key(info, &key);
2481 if (info->attrs[NL80211_ATTR_MAC])
2482 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2484 if (key.type == -1) {
2486 key.type = NL80211_KEYTYPE_PAIRWISE;
2488 key.type = NL80211_KEYTYPE_GROUP;
2492 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2493 key.type != NL80211_KEYTYPE_GROUP)
2496 if (!rdev->ops->del_key)
2499 wdev_lock(dev->ieee80211_ptr);
2500 err = nl80211_key_allowed(dev->ieee80211_ptr);
2502 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2503 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2507 err = rdev_del_key(rdev, dev, key.idx,
2508 key.type == NL80211_KEYTYPE_PAIRWISE,
2511 #ifdef CONFIG_CFG80211_WEXT
2513 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2514 dev->ieee80211_ptr->wext.default_key = -1;
2515 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2516 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2519 wdev_unlock(dev->ieee80211_ptr);
2524 /* This function returns an error or the number of nested attributes */
2525 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2527 struct nlattr *attr;
2528 int n_entries = 0, tmp;
2530 nla_for_each_nested(attr, nl_attr, tmp) {
2531 if (nla_len(attr) != ETH_ALEN)
2541 * This function parses ACL information and allocates memory for ACL data.
2542 * On successful return, the calling function is responsible to free the
2543 * ACL buffer returned by this function.
2545 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2546 struct genl_info *info)
2548 enum nl80211_acl_policy acl_policy;
2549 struct nlattr *attr;
2550 struct cfg80211_acl_data *acl;
2551 int i = 0, n_entries, tmp;
2553 if (!wiphy->max_acl_mac_addrs)
2554 return ERR_PTR(-EOPNOTSUPP);
2556 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2557 return ERR_PTR(-EINVAL);
2559 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2560 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2561 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2562 return ERR_PTR(-EINVAL);
2564 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2565 return ERR_PTR(-EINVAL);
2567 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2569 return ERR_PTR(n_entries);
2571 if (n_entries > wiphy->max_acl_mac_addrs)
2572 return ERR_PTR(-ENOTSUPP);
2574 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2577 return ERR_PTR(-ENOMEM);
2579 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2580 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2584 acl->n_acl_entries = n_entries;
2585 acl->acl_policy = acl_policy;
2590 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2592 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2593 struct net_device *dev = info->user_ptr[1];
2594 struct cfg80211_acl_data *acl;
2597 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2598 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2601 if (!dev->ieee80211_ptr->beacon_interval)
2604 acl = parse_acl_data(&rdev->wiphy, info);
2606 return PTR_ERR(acl);
2608 err = rdev_set_mac_acl(rdev, dev, acl);
2615 static int nl80211_parse_beacon(struct genl_info *info,
2616 struct cfg80211_beacon_data *bcn)
2618 bool haveinfo = false;
2620 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2621 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2622 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2623 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2626 memset(bcn, 0, sizeof(*bcn));
2628 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2629 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2630 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2636 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2637 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2639 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2646 if (info->attrs[NL80211_ATTR_IE]) {
2647 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2648 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2651 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2652 bcn->proberesp_ies =
2653 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2654 bcn->proberesp_ies_len =
2655 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2658 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2659 bcn->assocresp_ies =
2660 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2661 bcn->assocresp_ies_len =
2662 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2665 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2667 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2668 bcn->probe_resp_len =
2669 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2675 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2676 struct cfg80211_ap_settings *params)
2678 struct wireless_dev *wdev;
2681 mutex_lock(&rdev->devlist_mtx);
2683 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2684 if (wdev->iftype != NL80211_IFTYPE_AP &&
2685 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2688 if (!wdev->preset_chandef.chan)
2691 params->chandef = wdev->preset_chandef;
2696 mutex_unlock(&rdev->devlist_mtx);
2701 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2702 enum nl80211_auth_type auth_type,
2703 enum nl80211_commands cmd)
2705 if (auth_type > NL80211_AUTHTYPE_MAX)
2709 case NL80211_CMD_AUTHENTICATE:
2710 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2711 auth_type == NL80211_AUTHTYPE_SAE)
2714 case NL80211_CMD_CONNECT:
2715 case NL80211_CMD_START_AP:
2716 /* SAE not supported yet */
2717 if (auth_type == NL80211_AUTHTYPE_SAE)
2725 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2727 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2728 struct net_device *dev = info->user_ptr[1];
2729 struct wireless_dev *wdev = dev->ieee80211_ptr;
2730 struct cfg80211_ap_settings params;
2732 u8 radar_detect_width = 0;
2734 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2735 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2738 if (!rdev->ops->start_ap)
2741 if (wdev->beacon_interval)
2744 memset(¶ms, 0, sizeof(params));
2746 /* these are required for START_AP */
2747 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2748 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2749 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2752 err = nl80211_parse_beacon(info, ¶ms.beacon);
2756 params.beacon_interval =
2757 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2758 params.dtim_period =
2759 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2761 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2766 * In theory, some of these attributes should be required here
2767 * but since they were not used when the command was originally
2768 * added, keep them optional for old user space programs to let
2769 * them continue to work with drivers that do not need the
2770 * additional information -- drivers must check!
2772 if (info->attrs[NL80211_ATTR_SSID]) {
2773 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2775 nla_len(info->attrs[NL80211_ATTR_SSID]);
2776 if (params.ssid_len == 0 ||
2777 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2781 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2782 params.hidden_ssid = nla_get_u32(
2783 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2784 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2785 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2786 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2790 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2792 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2793 params.auth_type = nla_get_u32(
2794 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2795 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2796 NL80211_CMD_START_AP))
2799 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2801 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2802 NL80211_MAX_NR_CIPHER_SUITES);
2806 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2807 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2809 params.inactivity_timeout = nla_get_u16(
2810 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2813 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2814 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2816 params.p2p_ctwindow =
2817 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2818 if (params.p2p_ctwindow > 127)
2820 if (params.p2p_ctwindow != 0 &&
2821 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2825 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2828 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2830 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2833 params.p2p_opp_ps = tmp;
2834 if (params.p2p_opp_ps != 0 &&
2835 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2839 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2840 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
2843 } else if (wdev->preset_chandef.chan) {
2844 params.chandef = wdev->preset_chandef;
2845 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2848 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
2851 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
2855 radar_detect_width = BIT(params.chandef.width);
2856 params.radar_required = true;
2859 mutex_lock(&rdev->devlist_mtx);
2860 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
2861 params.chandef.chan,
2863 radar_detect_width);
2864 mutex_unlock(&rdev->devlist_mtx);
2869 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2870 params.acl = parse_acl_data(&rdev->wiphy, info);
2871 if (IS_ERR(params.acl))
2872 return PTR_ERR(params.acl);
2875 err = rdev_start_ap(rdev, dev, ¶ms);
2877 wdev->preset_chandef = params.chandef;
2878 wdev->beacon_interval = params.beacon_interval;
2879 wdev->channel = params.chandef.chan;
2880 wdev->ssid_len = params.ssid_len;
2881 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2889 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2891 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2892 struct net_device *dev = info->user_ptr[1];
2893 struct wireless_dev *wdev = dev->ieee80211_ptr;
2894 struct cfg80211_beacon_data params;
2897 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2898 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2901 if (!rdev->ops->change_beacon)
2904 if (!wdev->beacon_interval)
2907 err = nl80211_parse_beacon(info, ¶ms);
2911 return rdev_change_beacon(rdev, dev, ¶ms);
2914 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2917 struct net_device *dev = info->user_ptr[1];
2919 return cfg80211_stop_ap(rdev, dev);
2922 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2923 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2924 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2925 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2926 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2927 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2928 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2931 static int parse_station_flags(struct genl_info *info,
2932 enum nl80211_iftype iftype,
2933 struct station_parameters *params)
2935 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2940 * Try parsing the new attribute first so userspace
2941 * can specify both for older kernels.
2943 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2945 struct nl80211_sta_flag_update *sta_flags;
2947 sta_flags = nla_data(nla);
2948 params->sta_flags_mask = sta_flags->mask;
2949 params->sta_flags_set = sta_flags->set;
2950 if ((params->sta_flags_mask |
2951 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2956 /* if present, parse the old attribute */
2958 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2962 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2963 nla, sta_flags_policy))
2967 * Only allow certain flags for interface types so that
2968 * other attributes are silently ignored. Remember that
2969 * this is backward compatibility code with old userspace
2970 * and shouldn't be hit in other cases anyway.
2973 case NL80211_IFTYPE_AP:
2974 case NL80211_IFTYPE_AP_VLAN:
2975 case NL80211_IFTYPE_P2P_GO:
2976 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2977 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2978 BIT(NL80211_STA_FLAG_WME) |
2979 BIT(NL80211_STA_FLAG_MFP);
2981 case NL80211_IFTYPE_P2P_CLIENT:
2982 case NL80211_IFTYPE_STATION:
2983 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2984 BIT(NL80211_STA_FLAG_TDLS_PEER);
2986 case NL80211_IFTYPE_MESH_POINT:
2987 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
2988 BIT(NL80211_STA_FLAG_MFP) |
2989 BIT(NL80211_STA_FLAG_AUTHORIZED);
2994 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
2996 params->sta_flags_set |= (1<<flag);
2998 /* no longer support new API additions in old API */
2999 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3007 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3010 struct nlattr *rate;
3014 rate = nla_nest_start(msg, attr);
3018 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3019 bitrate = cfg80211_calculate_bitrate(info);
3020 /* report 16-bit bitrate only if we can */
3021 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3023 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3025 if (bitrate_compat > 0 &&
3026 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3029 if (info->flags & RATE_INFO_FLAGS_MCS) {
3030 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3032 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3033 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3035 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3036 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3038 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3039 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3041 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3043 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3044 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3046 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3047 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3049 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3050 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3052 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3053 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3055 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3056 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3060 nla_nest_end(msg, rate);
3064 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3066 struct cfg80211_registered_device *rdev,
3067 struct net_device *dev,
3068 const u8 *mac_addr, struct station_info *sinfo)
3071 struct nlattr *sinfoattr, *bss_param;
3073 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3077 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3078 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3079 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3080 goto nla_put_failure;
3082 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3084 goto nla_put_failure;
3085 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3086 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3087 sinfo->connected_time))
3088 goto nla_put_failure;
3089 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3090 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3091 sinfo->inactive_time))
3092 goto nla_put_failure;
3093 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3094 STATION_INFO_RX_BYTES64)) &&
3095 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3096 (u32)sinfo->rx_bytes))
3097 goto nla_put_failure;
3098 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3099 NL80211_STA_INFO_TX_BYTES64)) &&
3100 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3101 (u32)sinfo->tx_bytes))
3102 goto nla_put_failure;
3103 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3104 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3106 goto nla_put_failure;
3107 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3108 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3110 goto nla_put_failure;
3111 if ((sinfo->filled & STATION_INFO_LLID) &&
3112 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3113 goto nla_put_failure;
3114 if ((sinfo->filled & STATION_INFO_PLID) &&
3115 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3116 goto nla_put_failure;
3117 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3118 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3119 sinfo->plink_state))
3120 goto nla_put_failure;
3121 switch (rdev->wiphy.signal_type) {
3122 case CFG80211_SIGNAL_TYPE_MBM:
3123 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3124 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3126 goto nla_put_failure;
3127 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3128 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3130 goto nla_put_failure;
3135 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3136 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3137 NL80211_STA_INFO_TX_BITRATE))
3138 goto nla_put_failure;
3140 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3141 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3142 NL80211_STA_INFO_RX_BITRATE))
3143 goto nla_put_failure;
3145 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3146 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3148 goto nla_put_failure;
3149 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3150 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3152 goto nla_put_failure;
3153 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3154 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3156 goto nla_put_failure;
3157 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3158 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3160 goto nla_put_failure;
3161 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3162 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3163 sinfo->beacon_loss_count))
3164 goto nla_put_failure;
3165 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3166 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3168 goto nla_put_failure;
3169 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3170 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3172 goto nla_put_failure;
3173 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3174 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3176 goto nla_put_failure;
3177 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3178 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3180 goto nla_put_failure;
3182 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3183 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3184 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3185 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3186 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3187 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3188 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3189 sinfo->bss_param.dtim_period) ||
3190 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3191 sinfo->bss_param.beacon_interval))
3192 goto nla_put_failure;
3194 nla_nest_end(msg, bss_param);
3196 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3197 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3198 sizeof(struct nl80211_sta_flag_update),
3200 goto nla_put_failure;
3201 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3202 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3204 goto nla_put_failure;
3205 nla_nest_end(msg, sinfoattr);
3207 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3208 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3209 sinfo->assoc_req_ies))
3210 goto nla_put_failure;
3212 return genlmsg_end(msg, hdr);
3215 genlmsg_cancel(msg, hdr);
3219 static int nl80211_dump_station(struct sk_buff *skb,
3220 struct netlink_callback *cb)
3222 struct station_info sinfo;
3223 struct cfg80211_registered_device *dev;
3224 struct net_device *netdev;
3225 u8 mac_addr[ETH_ALEN];
3226 int sta_idx = cb->args[1];
3229 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3233 if (!dev->ops->dump_station) {
3239 memset(&sinfo, 0, sizeof(sinfo));
3240 err = rdev_dump_station(dev, netdev, sta_idx,
3247 if (nl80211_send_station(skb,
3248 NETLINK_CB(cb->skb).portid,
3249 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3250 dev, netdev, mac_addr,
3259 cb->args[1] = sta_idx;
3262 nl80211_finish_netdev_dump(dev);
3267 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3270 struct net_device *dev = info->user_ptr[1];
3271 struct station_info sinfo;
3272 struct sk_buff *msg;
3273 u8 *mac_addr = NULL;
3276 memset(&sinfo, 0, sizeof(sinfo));
3278 if (!info->attrs[NL80211_ATTR_MAC])
3281 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3283 if (!rdev->ops->get_station)
3286 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3290 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3294 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3295 rdev, dev, mac_addr, &sinfo) < 0) {
3300 return genlmsg_reply(msg, info);
3304 * Get vlan interface making sure it is running and on the right wiphy.
3306 static struct net_device *get_vlan(struct genl_info *info,
3307 struct cfg80211_registered_device *rdev)
3309 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3310 struct net_device *v;
3316 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3318 return ERR_PTR(-ENODEV);
3320 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3325 if (!netif_running(v)) {
3333 return ERR_PTR(ret);
3336 static struct nla_policy
3337 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3338 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3339 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3342 static int nl80211_set_station_tdls(struct genl_info *info,
3343 struct station_parameters *params)
3345 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3349 /* Dummy STA entry gets updated once the peer capabilities are known */
3350 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3352 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3353 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3355 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3357 /* parse WME attributes if present */
3358 if (!info->attrs[NL80211_ATTR_STA_WME])
3361 nla = info->attrs[NL80211_ATTR_STA_WME];
3362 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3363 nl80211_sta_wme_policy);
3367 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3368 params->uapsd_queues = nla_get_u8(
3369 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3370 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3373 if (tb[NL80211_STA_WME_MAX_SP])
3374 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3376 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3379 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3384 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3388 struct net_device *dev = info->user_ptr[1];
3389 struct station_parameters params;
3390 u8 *mac_addr = NULL;
3392 memset(¶ms, 0, sizeof(params));
3394 params.listen_interval = -1;
3395 params.plink_state = -1;
3397 if (info->attrs[NL80211_ATTR_STA_AID])
3400 if (!info->attrs[NL80211_ATTR_MAC])
3403 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3405 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3406 params.supported_rates =
3407 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3408 params.supported_rates_len =
3409 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3412 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3414 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3415 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3418 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3420 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3421 params.ext_capab_len =
3422 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3425 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3428 if (!rdev->ops->change_station)
3431 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3434 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3435 params.plink_action =
3436 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3438 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3439 params.plink_state =
3440 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3442 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3443 enum nl80211_mesh_power_mode pm = nla_get_u32(
3444 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3446 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3447 pm > NL80211_MESH_POWER_MAX)
3450 params.local_pm = pm;
3453 switch (dev->ieee80211_ptr->iftype) {
3454 case NL80211_IFTYPE_AP:
3455 case NL80211_IFTYPE_AP_VLAN:
3456 case NL80211_IFTYPE_P2P_GO:
3457 /* disallow mesh-specific things */
3458 if (params.plink_action)
3460 if (params.local_pm)
3463 /* TDLS can't be set, ... */
3464 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3467 * ... but don't bother the driver with it. This works around
3468 * a hostapd/wpa_supplicant issue -- it always includes the
3469 * TLDS_PEER flag in the mask even for AP mode.
3471 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3473 /* accept only the listed bits */
3474 if (params.sta_flags_mask &
3475 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3476 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3477 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3478 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3479 BIT(NL80211_STA_FLAG_WME) |
3480 BIT(NL80211_STA_FLAG_MFP)))
3483 /* but authenticated/associated only if driver handles it */
3484 if (!(rdev->wiphy.features &
3485 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3486 params.sta_flags_mask &
3487 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3488 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3491 /* reject other things that can't change */
3492 if (params.supported_rates)
3494 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3496 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3498 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3499 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3502 /* must be last in here for error handling */
3503 params.vlan = get_vlan(info, rdev);
3504 if (IS_ERR(params.vlan))
3505 return PTR_ERR(params.vlan);
3507 case NL80211_IFTYPE_P2P_CLIENT:
3508 case NL80211_IFTYPE_STATION:
3510 * Don't allow userspace to change the TDLS_PEER flag,
3511 * but silently ignore attempts to change it since we
3512 * don't have state here to verify that it doesn't try
3513 * to change the flag.
3515 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3516 /* Include parameters for TDLS peer (driver will check) */
3517 err = nl80211_set_station_tdls(info, ¶ms);
3520 /* disallow things sta doesn't support */
3521 if (params.plink_action)
3523 if (params.local_pm)
3525 /* reject any changes other than AUTHORIZED or WME (for TDLS) */
3526 if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3527 BIT(NL80211_STA_FLAG_WME)))
3530 case NL80211_IFTYPE_ADHOC:
3531 /* disallow things sta doesn't support */
3532 if (params.plink_action)
3534 if (params.local_pm)
3536 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3537 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3539 /* reject any changes other than AUTHORIZED */
3540 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3543 case NL80211_IFTYPE_MESH_POINT:
3544 /* disallow things mesh doesn't support */
3547 if (params.supported_rates)
3549 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3551 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3553 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3554 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3557 * No special handling for TDLS here -- the userspace
3558 * mesh code doesn't have this bug.
3560 if (params.sta_flags_mask &
3561 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3562 BIT(NL80211_STA_FLAG_MFP) |
3563 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3570 /* be aware of params.vlan when changing code here */
3572 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3575 dev_put(params.vlan);
3580 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3584 struct net_device *dev = info->user_ptr[1];
3585 struct station_parameters params;
3586 u8 *mac_addr = NULL;
3588 memset(¶ms, 0, sizeof(params));
3590 if (!info->attrs[NL80211_ATTR_MAC])
3593 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3596 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3599 if (!info->attrs[NL80211_ATTR_STA_AID])
3602 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3603 params.supported_rates =
3604 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3605 params.supported_rates_len =
3606 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3607 params.listen_interval =
3608 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3610 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3611 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3614 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3616 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3617 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3620 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3622 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3623 params.ext_capab_len =
3624 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3627 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3629 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3631 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3633 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3635 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3636 params.plink_action =
3637 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3639 if (!rdev->ops->add_station)
3642 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3645 switch (dev->ieee80211_ptr->iftype) {
3646 case NL80211_IFTYPE_AP:
3647 case NL80211_IFTYPE_AP_VLAN:
3648 case NL80211_IFTYPE_P2P_GO:
3649 /* parse WME attributes if sta is WME capable */
3650 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3651 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3652 info->attrs[NL80211_ATTR_STA_WME]) {
3653 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3656 nla = info->attrs[NL80211_ATTR_STA_WME];
3657 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3658 nl80211_sta_wme_policy);
3662 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3663 params.uapsd_queues =
3664 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3665 if (params.uapsd_queues &
3666 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3669 if (tb[NL80211_STA_WME_MAX_SP])
3671 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3674 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3677 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3679 /* TDLS peers cannot be added */
3680 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3682 /* but don't bother the driver with it */
3683 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3685 /* allow authenticated/associated only if driver handles it */
3686 if (!(rdev->wiphy.features &
3687 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3688 params.sta_flags_mask &
3689 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3690 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3693 /* must be last in here for error handling */
3694 params.vlan = get_vlan(info, rdev);
3695 if (IS_ERR(params.vlan))
3696 return PTR_ERR(params.vlan);
3698 case NL80211_IFTYPE_MESH_POINT:
3699 /* associated is disallowed */
3700 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3702 /* TDLS peers cannot be added */
3703 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3706 case NL80211_IFTYPE_STATION:
3707 /* associated is disallowed */
3708 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3710 /* Only TDLS peers can be added */
3711 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3713 /* Can only add if TDLS ... */
3714 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3716 /* ... with external setup is supported */
3717 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3724 /* be aware of params.vlan when changing code here */
3726 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3729 dev_put(params.vlan);
3733 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3736 struct net_device *dev = info->user_ptr[1];
3737 u8 *mac_addr = NULL;
3739 if (info->attrs[NL80211_ATTR_MAC])
3740 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3742 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3743 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3744 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3748 if (!rdev->ops->del_station)
3751 return rdev_del_station(rdev, dev, mac_addr);
3754 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3755 int flags, struct net_device *dev,
3756 u8 *dst, u8 *next_hop,
3757 struct mpath_info *pinfo)
3760 struct nlattr *pinfoattr;
3762 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3766 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3767 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3768 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3769 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3770 goto nla_put_failure;
3772 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3774 goto nla_put_failure;
3775 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3776 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3778 goto nla_put_failure;
3779 if (((pinfo->filled & MPATH_INFO_SN) &&
3780 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3781 ((pinfo->filled & MPATH_INFO_METRIC) &&
3782 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3784 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3785 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3787 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3788 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3790 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3791 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3792 pinfo->discovery_timeout)) ||
3793 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3794 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3795 pinfo->discovery_retries)))
3796 goto nla_put_failure;
3798 nla_nest_end(msg, pinfoattr);
3800 return genlmsg_end(msg, hdr);
3803 genlmsg_cancel(msg, hdr);
3807 static int nl80211_dump_mpath(struct sk_buff *skb,
3808 struct netlink_callback *cb)
3810 struct mpath_info pinfo;
3811 struct cfg80211_registered_device *dev;
3812 struct net_device *netdev;
3814 u8 next_hop[ETH_ALEN];
3815 int path_idx = cb->args[1];
3818 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3822 if (!dev->ops->dump_mpath) {
3827 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3833 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3840 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3841 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3842 netdev, dst, next_hop,
3851 cb->args[1] = path_idx;
3854 nl80211_finish_netdev_dump(dev);
3858 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3862 struct net_device *dev = info->user_ptr[1];
3863 struct mpath_info pinfo;
3864 struct sk_buff *msg;
3866 u8 next_hop[ETH_ALEN];
3868 memset(&pinfo, 0, sizeof(pinfo));
3870 if (!info->attrs[NL80211_ATTR_MAC])
3873 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3875 if (!rdev->ops->get_mpath)
3878 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3881 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3889 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3890 dev, dst, next_hop, &pinfo) < 0) {
3895 return genlmsg_reply(msg, info);
3898 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3901 struct net_device *dev = info->user_ptr[1];
3903 u8 *next_hop = NULL;
3905 if (!info->attrs[NL80211_ATTR_MAC])
3908 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3911 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3912 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3914 if (!rdev->ops->change_mpath)
3917 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3920 return rdev_change_mpath(rdev, dev, dst, next_hop);
3923 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3926 struct net_device *dev = info->user_ptr[1];
3928 u8 *next_hop = NULL;
3930 if (!info->attrs[NL80211_ATTR_MAC])
3933 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3936 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3937 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3939 if (!rdev->ops->add_mpath)
3942 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3945 return rdev_add_mpath(rdev, dev, dst, next_hop);
3948 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3951 struct net_device *dev = info->user_ptr[1];
3954 if (info->attrs[NL80211_ATTR_MAC])
3955 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3957 if (!rdev->ops->del_mpath)
3960 return rdev_del_mpath(rdev, dev, dst);
3963 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3965 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3966 struct net_device *dev = info->user_ptr[1];
3967 struct bss_parameters params;
3969 memset(¶ms, 0, sizeof(params));
3970 /* default to not changing parameters */
3971 params.use_cts_prot = -1;
3972 params.use_short_preamble = -1;
3973 params.use_short_slot_time = -1;
3974 params.ap_isolate = -1;
3975 params.ht_opmode = -1;
3976 params.p2p_ctwindow = -1;
3977 params.p2p_opp_ps = -1;
3979 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
3980 params.use_cts_prot =
3981 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
3982 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
3983 params.use_short_preamble =
3984 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
3985 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
3986 params.use_short_slot_time =
3987 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
3988 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
3989 params.basic_rates =
3990 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3991 params.basic_rates_len =
3992 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
3994 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
3995 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
3996 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
3998 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4000 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4001 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4003 params.p2p_ctwindow =
4004 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4005 if (params.p2p_ctwindow < 0)
4007 if (params.p2p_ctwindow != 0 &&
4008 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4012 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4015 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4017 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4020 params.p2p_opp_ps = tmp;
4021 if (params.p2p_opp_ps &&
4022 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4026 if (!rdev->ops->change_bss)
4029 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4030 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4033 return rdev_change_bss(rdev, dev, ¶ms);
4036 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4037 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4038 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4039 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4040 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4041 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4042 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4045 static int parse_reg_rule(struct nlattr *tb[],
4046 struct ieee80211_reg_rule *reg_rule)
4048 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4049 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4051 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4053 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4055 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4057 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4059 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4062 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4064 freq_range->start_freq_khz =
4065 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4066 freq_range->end_freq_khz =
4067 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4068 freq_range->max_bandwidth_khz =
4069 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4071 power_rule->max_eirp =
4072 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4074 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4075 power_rule->max_antenna_gain =
4076 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4081 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4085 enum nl80211_user_reg_hint_type user_reg_hint_type;
4088 * You should only get this when cfg80211 hasn't yet initialized
4089 * completely when built-in to the kernel right between the time
4090 * window between nl80211_init() and regulatory_init(), if that is
4093 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4094 return -EINPROGRESS;
4096 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4099 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4101 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4102 user_reg_hint_type =
4103 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4105 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4107 switch (user_reg_hint_type) {
4108 case NL80211_USER_REG_HINT_USER:
4109 case NL80211_USER_REG_HINT_CELL_BASE:
4115 r = regulatory_hint_user(data, user_reg_hint_type);
4120 static int nl80211_get_mesh_config(struct sk_buff *skb,
4121 struct genl_info *info)
4123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4124 struct net_device *dev = info->user_ptr[1];
4125 struct wireless_dev *wdev = dev->ieee80211_ptr;
4126 struct mesh_config cur_params;
4129 struct nlattr *pinfoattr;
4130 struct sk_buff *msg;
4132 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4135 if (!rdev->ops->get_mesh_config)
4139 /* If not connected, get default parameters */
4140 if (!wdev->mesh_id_len)
4141 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4143 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4149 /* Draw up a netlink message to send back */
4150 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4153 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4154 NL80211_CMD_GET_MESH_CONFIG);
4157 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4159 goto nla_put_failure;
4160 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4161 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4162 cur_params.dot11MeshRetryTimeout) ||
4163 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4164 cur_params.dot11MeshConfirmTimeout) ||
4165 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4166 cur_params.dot11MeshHoldingTimeout) ||
4167 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4168 cur_params.dot11MeshMaxPeerLinks) ||
4169 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4170 cur_params.dot11MeshMaxRetries) ||
4171 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4172 cur_params.dot11MeshTTL) ||
4173 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4174 cur_params.element_ttl) ||
4175 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4176 cur_params.auto_open_plinks) ||
4177 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4178 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4179 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4180 cur_params.dot11MeshHWMPmaxPREQretries) ||
4181 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4182 cur_params.path_refresh_time) ||
4183 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4184 cur_params.min_discovery_timeout) ||
4185 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4186 cur_params.dot11MeshHWMPactivePathTimeout) ||
4187 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4188 cur_params.dot11MeshHWMPpreqMinInterval) ||
4189 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4190 cur_params.dot11MeshHWMPperrMinInterval) ||
4191 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4192 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4193 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4194 cur_params.dot11MeshHWMPRootMode) ||
4195 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4196 cur_params.dot11MeshHWMPRannInterval) ||
4197 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4198 cur_params.dot11MeshGateAnnouncementProtocol) ||
4199 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4200 cur_params.dot11MeshForwarding) ||
4201 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4202 cur_params.rssi_threshold) ||
4203 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4204 cur_params.ht_opmode) ||
4205 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4206 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4207 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4208 cur_params.dot11MeshHWMProotInterval) ||
4209 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4210 cur_params.dot11MeshHWMPconfirmationInterval) ||
4211 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4212 cur_params.power_mode) ||
4213 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4214 cur_params.dot11MeshAwakeWindowDuration))
4215 goto nla_put_failure;
4216 nla_nest_end(msg, pinfoattr);
4217 genlmsg_end(msg, hdr);
4218 return genlmsg_reply(msg, info);
4221 genlmsg_cancel(msg, hdr);
4227 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4228 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4229 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4230 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4231 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4232 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4233 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4234 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4235 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4236 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4237 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4238 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4239 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4240 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4241 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4242 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4243 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4244 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4245 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4246 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4247 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4248 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4249 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4250 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4251 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4252 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4253 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4254 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4257 static const struct nla_policy
4258 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4259 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4260 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4261 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4262 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4263 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4264 .len = IEEE80211_MAX_DATA_LEN },
4265 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4268 static int nl80211_parse_mesh_config(struct genl_info *info,
4269 struct mesh_config *cfg,
4272 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4275 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4278 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4280 cfg->param = fn(tb[attr]); \
4281 mask |= (1 << (attr - 1)); \
4286 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4288 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4289 info->attrs[NL80211_ATTR_MESH_CONFIG],
4290 nl80211_meshconf_params_policy))
4293 /* This makes sure that there aren't more than 32 mesh config
4294 * parameters (otherwise our bitfield scheme would not work.) */
4295 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4297 /* Fill in the params struct */
4298 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4299 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4301 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4302 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4304 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4305 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4307 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4308 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4310 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4311 mask, NL80211_MESHCONF_MAX_RETRIES,
4313 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4314 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4315 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4316 mask, NL80211_MESHCONF_ELEMENT_TTL,
4318 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4319 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4321 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4323 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4325 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4326 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4328 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4329 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4331 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4332 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4334 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4336 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4338 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4340 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4342 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4344 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4346 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4347 dot11MeshHWMPnetDiameterTraversalTime,
4349 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4351 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4352 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4354 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4355 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4357 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4358 dot11MeshGateAnnouncementProtocol, 0, 1,
4359 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4361 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4362 mask, NL80211_MESHCONF_FORWARDING,
4364 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4365 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4367 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4368 mask, NL80211_MESHCONF_HT_OPMODE,
4370 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4372 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4374 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4375 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4377 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4378 dot11MeshHWMPconfirmationInterval,
4380 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4382 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4383 NL80211_MESH_POWER_ACTIVE,
4384 NL80211_MESH_POWER_MAX,
4385 mask, NL80211_MESHCONF_POWER_MODE,
4387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4389 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4395 #undef FILL_IN_MESH_PARAM_IF_SET
4398 static int nl80211_parse_mesh_setup(struct genl_info *info,
4399 struct mesh_setup *setup)
4401 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4403 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4405 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4406 info->attrs[NL80211_ATTR_MESH_SETUP],
4407 nl80211_mesh_setup_params_policy))
4410 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4411 setup->sync_method =
4412 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4413 IEEE80211_SYNC_METHOD_VENDOR :
4414 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4416 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4417 setup->path_sel_proto =
4418 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4419 IEEE80211_PATH_PROTOCOL_VENDOR :
4420 IEEE80211_PATH_PROTOCOL_HWMP;
4422 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4423 setup->path_metric =
4424 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4425 IEEE80211_PATH_METRIC_VENDOR :
4426 IEEE80211_PATH_METRIC_AIRTIME;
4429 if (tb[NL80211_MESH_SETUP_IE]) {
4430 struct nlattr *ieattr =
4431 tb[NL80211_MESH_SETUP_IE];
4432 if (!is_valid_ie_attr(ieattr))
4434 setup->ie = nla_data(ieattr);
4435 setup->ie_len = nla_len(ieattr);
4437 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4438 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4443 static int nl80211_update_mesh_config(struct sk_buff *skb,
4444 struct genl_info *info)
4446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4447 struct net_device *dev = info->user_ptr[1];
4448 struct wireless_dev *wdev = dev->ieee80211_ptr;
4449 struct mesh_config cfg;
4453 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4456 if (!rdev->ops->update_mesh_config)
4459 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4464 if (!wdev->mesh_id_len)
4468 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4475 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4477 const struct ieee80211_regdomain *regdom;
4478 struct sk_buff *msg;
4480 struct nlattr *nl_reg_rules;
4484 mutex_lock(&cfg80211_mutex);
4486 if (!cfg80211_regdomain)
4489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4495 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4496 NL80211_CMD_GET_REG);
4500 if (reg_last_request_cell_base() &&
4501 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4502 NL80211_USER_REG_HINT_CELL_BASE))
4503 goto nla_put_failure;
4506 regdom = rcu_dereference(cfg80211_regdomain);
4508 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4509 (regdom->dfs_region &&
4510 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4511 goto nla_put_failure_rcu;
4513 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4515 goto nla_put_failure_rcu;
4517 for (i = 0; i < regdom->n_reg_rules; i++) {
4518 struct nlattr *nl_reg_rule;
4519 const struct ieee80211_reg_rule *reg_rule;
4520 const struct ieee80211_freq_range *freq_range;
4521 const struct ieee80211_power_rule *power_rule;
4523 reg_rule = ®dom->reg_rules[i];
4524 freq_range = ®_rule->freq_range;
4525 power_rule = ®_rule->power_rule;
4527 nl_reg_rule = nla_nest_start(msg, i);
4529 goto nla_put_failure_rcu;
4531 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4533 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4534 freq_range->start_freq_khz) ||
4535 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4536 freq_range->end_freq_khz) ||
4537 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4538 freq_range->max_bandwidth_khz) ||
4539 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4540 power_rule->max_antenna_gain) ||
4541 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4542 power_rule->max_eirp))
4543 goto nla_put_failure_rcu;
4545 nla_nest_end(msg, nl_reg_rule);
4549 nla_nest_end(msg, nl_reg_rules);
4551 genlmsg_end(msg, hdr);
4552 err = genlmsg_reply(msg, info);
4555 nla_put_failure_rcu:
4558 genlmsg_cancel(msg, hdr);
4563 mutex_unlock(&cfg80211_mutex);
4567 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4569 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4570 struct nlattr *nl_reg_rule;
4571 char *alpha2 = NULL;
4572 int rem_reg_rules = 0, r = 0;
4573 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4575 struct ieee80211_regdomain *rd = NULL;
4577 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4580 if (!info->attrs[NL80211_ATTR_REG_RULES])
4583 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4585 if (info->attrs[NL80211_ATTR_DFS_REGION])
4586 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4588 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4591 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4595 size_of_regd = sizeof(struct ieee80211_regdomain) +
4596 num_rules * sizeof(struct ieee80211_reg_rule);
4598 rd = kzalloc(size_of_regd, GFP_KERNEL);
4602 rd->n_reg_rules = num_rules;
4603 rd->alpha2[0] = alpha2[0];
4604 rd->alpha2[1] = alpha2[1];
4607 * Disable DFS master mode if the DFS region was
4608 * not supported or known on this kernel.
4610 if (reg_supported_dfs_region(dfs_region))
4611 rd->dfs_region = dfs_region;
4613 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4615 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4616 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4618 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4624 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4630 mutex_lock(&cfg80211_mutex);
4633 /* set_regdom took ownership */
4635 mutex_unlock(&cfg80211_mutex);
4642 static int validate_scan_freqs(struct nlattr *freqs)
4644 struct nlattr *attr1, *attr2;
4645 int n_channels = 0, tmp1, tmp2;
4647 nla_for_each_nested(attr1, freqs, tmp1) {
4650 * Some hardware has a limited channel list for
4651 * scanning, and it is pretty much nonsensical
4652 * to scan for a channel twice, so disallow that
4653 * and don't require drivers to check that the
4654 * channel list they get isn't longer than what
4655 * they can scan, as long as they can scan all
4656 * the channels they registered at once.
4658 nla_for_each_nested(attr2, freqs, tmp2)
4659 if (attr1 != attr2 &&
4660 nla_get_u32(attr1) == nla_get_u32(attr2))
4667 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4670 struct wireless_dev *wdev = info->user_ptr[1];
4671 struct cfg80211_scan_request *request;
4672 struct nlattr *attr;
4673 struct wiphy *wiphy;
4674 int err, tmp, n_ssids = 0, n_channels, i;
4677 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4680 wiphy = &rdev->wiphy;
4682 if (!rdev->ops->scan)
4688 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4689 n_channels = validate_scan_freqs(
4690 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4694 enum ieee80211_band band;
4697 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4698 if (wiphy->bands[band])
4699 n_channels += wiphy->bands[band]->n_channels;
4702 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4703 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4706 if (n_ssids > wiphy->max_scan_ssids)
4709 if (info->attrs[NL80211_ATTR_IE])
4710 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4714 if (ie_len > wiphy->max_scan_ie_len)
4717 request = kzalloc(sizeof(*request)
4718 + sizeof(*request->ssids) * n_ssids
4719 + sizeof(*request->channels) * n_channels
4720 + ie_len, GFP_KERNEL);
4725 request->ssids = (void *)&request->channels[n_channels];
4726 request->n_ssids = n_ssids;
4729 request->ie = (void *)(request->ssids + n_ssids);
4731 request->ie = (void *)(request->channels + n_channels);
4735 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4736 /* user specified, bail out if channel not found */
4737 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4738 struct ieee80211_channel *chan;
4740 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4747 /* ignore disabled channels */
4748 if (chan->flags & IEEE80211_CHAN_DISABLED)
4751 request->channels[i] = chan;
4755 enum ieee80211_band band;
4758 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4760 if (!wiphy->bands[band])
4762 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4763 struct ieee80211_channel *chan;
4765 chan = &wiphy->bands[band]->channels[j];
4767 if (chan->flags & IEEE80211_CHAN_DISABLED)
4770 request->channels[i] = chan;
4781 request->n_channels = i;
4784 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4785 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4786 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4790 request->ssids[i].ssid_len = nla_len(attr);
4791 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4796 if (info->attrs[NL80211_ATTR_IE]) {
4797 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4798 memcpy((void *)request->ie,
4799 nla_data(info->attrs[NL80211_ATTR_IE]),
4803 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4804 if (wiphy->bands[i])
4806 (1 << wiphy->bands[i]->n_bitrates) - 1;
4808 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4809 nla_for_each_nested(attr,
4810 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4812 enum ieee80211_band band = nla_type(attr);
4814 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4818 err = ieee80211_get_ratemask(wiphy->bands[band],
4821 &request->rates[band]);
4827 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4828 request->flags = nla_get_u32(
4829 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4830 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4831 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4832 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4833 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4840 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4842 request->wdev = wdev;
4843 request->wiphy = &rdev->wiphy;
4844 request->scan_start = jiffies;
4846 rdev->scan_req = request;
4847 err = rdev_scan(rdev, request);
4850 nl80211_send_scan_start(rdev, wdev);
4852 dev_hold(wdev->netdev);
4855 rdev->scan_req = NULL;
4862 static int nl80211_start_sched_scan(struct sk_buff *skb,
4863 struct genl_info *info)
4865 struct cfg80211_sched_scan_request *request;
4866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4867 struct net_device *dev = info->user_ptr[1];
4868 struct nlattr *attr;
4869 struct wiphy *wiphy;
4870 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4872 enum ieee80211_band band;
4874 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4876 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4877 !rdev->ops->sched_scan_start)
4880 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4883 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4886 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4890 wiphy = &rdev->wiphy;
4892 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4893 n_channels = validate_scan_freqs(
4894 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4900 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4901 if (wiphy->bands[band])
4902 n_channels += wiphy->bands[band]->n_channels;
4905 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4906 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4910 if (n_ssids > wiphy->max_sched_scan_ssids)
4913 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4914 nla_for_each_nested(attr,
4915 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4919 if (n_match_sets > wiphy->max_match_sets)
4922 if (info->attrs[NL80211_ATTR_IE])
4923 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4927 if (ie_len > wiphy->max_sched_scan_ie_len)
4930 mutex_lock(&rdev->sched_scan_mtx);
4932 if (rdev->sched_scan_req) {
4937 request = kzalloc(sizeof(*request)
4938 + sizeof(*request->ssids) * n_ssids
4939 + sizeof(*request->match_sets) * n_match_sets
4940 + sizeof(*request->channels) * n_channels
4941 + ie_len, GFP_KERNEL);
4948 request->ssids = (void *)&request->channels[n_channels];
4949 request->n_ssids = n_ssids;
4952 request->ie = (void *)(request->ssids + n_ssids);
4954 request->ie = (void *)(request->channels + n_channels);
4959 request->match_sets = (void *)(request->ie + ie_len);
4960 else if (request->ssids)
4961 request->match_sets =
4962 (void *)(request->ssids + n_ssids);
4964 request->match_sets =
4965 (void *)(request->channels + n_channels);
4967 request->n_match_sets = n_match_sets;
4970 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4971 /* user specified, bail out if channel not found */
4972 nla_for_each_nested(attr,
4973 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
4975 struct ieee80211_channel *chan;
4977 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4984 /* ignore disabled channels */
4985 if (chan->flags & IEEE80211_CHAN_DISABLED)
4988 request->channels[i] = chan;
4993 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4995 if (!wiphy->bands[band])
4997 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4998 struct ieee80211_channel *chan;
5000 chan = &wiphy->bands[band]->channels[j];
5002 if (chan->flags & IEEE80211_CHAN_DISABLED)
5005 request->channels[i] = chan;
5016 request->n_channels = i;
5019 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5020 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5022 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5026 request->ssids[i].ssid_len = nla_len(attr);
5027 memcpy(request->ssids[i].ssid, nla_data(attr),
5034 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5035 nla_for_each_nested(attr,
5036 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5038 struct nlattr *ssid, *rssi;
5040 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5041 nla_data(attr), nla_len(attr),
5042 nl80211_match_policy);
5043 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5045 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5049 memcpy(request->match_sets[i].ssid.ssid,
5050 nla_data(ssid), nla_len(ssid));
5051 request->match_sets[i].ssid.ssid_len =
5054 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5056 request->rssi_thold = nla_get_u32(rssi);
5058 request->rssi_thold =
5059 NL80211_SCAN_RSSI_THOLD_OFF;
5064 if (info->attrs[NL80211_ATTR_IE]) {
5065 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5066 memcpy((void *)request->ie,
5067 nla_data(info->attrs[NL80211_ATTR_IE]),
5071 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5072 request->flags = nla_get_u32(
5073 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5074 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5075 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5076 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5077 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5084 request->wiphy = &rdev->wiphy;
5085 request->interval = interval;
5086 request->scan_start = jiffies;
5088 err = rdev_sched_scan_start(rdev, dev, request);
5090 rdev->sched_scan_req = request;
5091 nl80211_send_sched_scan(rdev, dev,
5092 NL80211_CMD_START_SCHED_SCAN);
5099 mutex_unlock(&rdev->sched_scan_mtx);
5103 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5104 struct genl_info *info)
5106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5109 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5110 !rdev->ops->sched_scan_stop)
5113 mutex_lock(&rdev->sched_scan_mtx);
5114 err = __cfg80211_stop_sched_scan(rdev, false);
5115 mutex_unlock(&rdev->sched_scan_mtx);
5120 static int nl80211_start_radar_detection(struct sk_buff *skb,
5121 struct genl_info *info)
5123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5124 struct net_device *dev = info->user_ptr[1];
5125 struct wireless_dev *wdev = dev->ieee80211_ptr;
5126 struct cfg80211_chan_def chandef;
5129 err = nl80211_parse_chandef(rdev, info, &chandef);
5133 if (wdev->cac_started)
5136 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5143 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5146 if (!rdev->ops->start_radar_detection)
5149 mutex_lock(&rdev->devlist_mtx);
5150 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5151 chandef.chan, CHAN_MODE_SHARED,
5152 BIT(chandef.width));
5156 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5158 wdev->channel = chandef.chan;
5159 wdev->cac_started = true;
5160 wdev->cac_start_time = jiffies;
5163 mutex_unlock(&rdev->devlist_mtx);
5168 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5170 struct cfg80211_registered_device *rdev,
5171 struct wireless_dev *wdev,
5172 struct cfg80211_internal_bss *intbss)
5174 struct cfg80211_bss *res = &intbss->pub;
5175 const struct cfg80211_bss_ies *ies;
5180 ASSERT_WDEV_LOCK(wdev);
5182 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5183 NL80211_CMD_NEW_SCAN_RESULTS);
5187 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5189 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5190 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5191 goto nla_put_failure;
5193 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5195 goto nla_put_failure;
5196 if ((!is_zero_ether_addr(res->bssid) &&
5197 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5198 goto nla_put_failure;
5201 ies = rcu_dereference(res->ies);
5203 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5204 goto fail_unlock_rcu;
5206 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5207 ies->len, ies->data))
5208 goto fail_unlock_rcu;
5210 ies = rcu_dereference(res->beacon_ies);
5212 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5213 goto fail_unlock_rcu;
5214 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5215 ies->len, ies->data))
5216 goto fail_unlock_rcu;
5220 if (res->beacon_interval &&
5221 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5222 goto nla_put_failure;
5223 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5224 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5225 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5226 jiffies_to_msecs(jiffies - intbss->ts)))
5227 goto nla_put_failure;
5229 switch (rdev->wiphy.signal_type) {
5230 case CFG80211_SIGNAL_TYPE_MBM:
5231 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5232 goto nla_put_failure;
5234 case CFG80211_SIGNAL_TYPE_UNSPEC:
5235 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5236 goto nla_put_failure;
5242 switch (wdev->iftype) {
5243 case NL80211_IFTYPE_P2P_CLIENT:
5244 case NL80211_IFTYPE_STATION:
5245 if (intbss == wdev->current_bss &&
5246 nla_put_u32(msg, NL80211_BSS_STATUS,
5247 NL80211_BSS_STATUS_ASSOCIATED))
5248 goto nla_put_failure;
5250 case NL80211_IFTYPE_ADHOC:
5251 if (intbss == wdev->current_bss &&
5252 nla_put_u32(msg, NL80211_BSS_STATUS,
5253 NL80211_BSS_STATUS_IBSS_JOINED))
5254 goto nla_put_failure;
5260 nla_nest_end(msg, bss);
5262 return genlmsg_end(msg, hdr);
5267 genlmsg_cancel(msg, hdr);
5271 static int nl80211_dump_scan(struct sk_buff *skb,
5272 struct netlink_callback *cb)
5274 struct cfg80211_registered_device *rdev;
5275 struct net_device *dev;
5276 struct cfg80211_internal_bss *scan;
5277 struct wireless_dev *wdev;
5278 int start = cb->args[1], idx = 0;
5281 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5285 wdev = dev->ieee80211_ptr;
5288 spin_lock_bh(&rdev->bss_lock);
5289 cfg80211_bss_expire(rdev);
5291 cb->seq = rdev->bss_generation;
5293 list_for_each_entry(scan, &rdev->bss_list, list) {
5296 if (nl80211_send_bss(skb, cb,
5297 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5298 rdev, wdev, scan) < 0) {
5304 spin_unlock_bh(&rdev->bss_lock);
5308 nl80211_finish_netdev_dump(rdev);
5313 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5314 int flags, struct net_device *dev,
5315 struct survey_info *survey)
5318 struct nlattr *infoattr;
5320 hdr = nl80211hdr_put(msg, portid, seq, flags,
5321 NL80211_CMD_NEW_SURVEY_RESULTS);
5325 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5326 goto nla_put_failure;
5328 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5330 goto nla_put_failure;
5332 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5333 survey->channel->center_freq))
5334 goto nla_put_failure;
5336 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5337 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5338 goto nla_put_failure;
5339 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5340 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5341 goto nla_put_failure;
5342 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5343 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5344 survey->channel_time))
5345 goto nla_put_failure;
5346 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5347 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5348 survey->channel_time_busy))
5349 goto nla_put_failure;
5350 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5351 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5352 survey->channel_time_ext_busy))
5353 goto nla_put_failure;
5354 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5355 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5356 survey->channel_time_rx))
5357 goto nla_put_failure;
5358 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5359 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5360 survey->channel_time_tx))
5361 goto nla_put_failure;
5363 nla_nest_end(msg, infoattr);
5365 return genlmsg_end(msg, hdr);
5368 genlmsg_cancel(msg, hdr);
5372 static int nl80211_dump_survey(struct sk_buff *skb,
5373 struct netlink_callback *cb)
5375 struct survey_info survey;
5376 struct cfg80211_registered_device *dev;
5377 struct net_device *netdev;
5378 int survey_idx = cb->args[1];
5381 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5385 if (!dev->ops->dump_survey) {
5391 struct ieee80211_channel *chan;
5393 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
5399 /* Survey without a channel doesn't make sense */
5400 if (!survey.channel) {
5405 chan = ieee80211_get_channel(&dev->wiphy,
5406 survey.channel->center_freq);
5407 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5412 if (nl80211_send_survey(skb,
5413 NETLINK_CB(cb->skb).portid,
5414 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5422 cb->args[1] = survey_idx;
5425 nl80211_finish_netdev_dump(dev);
5429 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5431 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5432 NL80211_WPA_VERSION_2));
5435 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5438 struct net_device *dev = info->user_ptr[1];
5439 struct ieee80211_channel *chan;
5440 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5441 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5442 enum nl80211_auth_type auth_type;
5443 struct key_parse key;
5444 bool local_state_change;
5446 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5449 if (!info->attrs[NL80211_ATTR_MAC])
5452 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5455 if (!info->attrs[NL80211_ATTR_SSID])
5458 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5461 err = nl80211_parse_key(info, &key);
5466 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5468 if (!key.p.key || !key.p.key_len)
5470 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5471 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5472 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5473 key.p.key_len != WLAN_KEY_LEN_WEP104))
5485 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5486 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5495 if (!rdev->ops->auth)
5498 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5499 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5502 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5503 chan = ieee80211_get_channel(&rdev->wiphy,
5504 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5505 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5508 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5509 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5511 if (info->attrs[NL80211_ATTR_IE]) {
5512 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5513 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5516 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5517 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5520 if (auth_type == NL80211_AUTHTYPE_SAE &&
5521 !info->attrs[NL80211_ATTR_SAE_DATA])
5524 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5525 if (auth_type != NL80211_AUTHTYPE_SAE)
5527 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5528 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5529 /* need to include at least Auth Transaction and Status Code */
5530 if (sae_data_len < 4)
5534 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5537 * Since we no longer track auth state, ignore
5538 * requests to only change local state.
5540 if (local_state_change)
5543 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5544 ssid, ssid_len, ie, ie_len,
5545 key.p.key, key.p.key_len, key.idx,
5546 sae_data, sae_data_len);
5549 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5550 struct genl_info *info,
5551 struct cfg80211_crypto_settings *settings,
5554 memset(settings, 0, sizeof(*settings));
5556 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5558 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5560 proto = nla_get_u16(
5561 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5562 settings->control_port_ethertype = cpu_to_be16(proto);
5563 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5566 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5567 settings->control_port_no_encrypt = true;
5569 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5571 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5575 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5576 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5577 settings->n_ciphers_pairwise = len / sizeof(u32);
5579 if (len % sizeof(u32))
5582 if (settings->n_ciphers_pairwise > cipher_limit)
5585 memcpy(settings->ciphers_pairwise, data, len);
5587 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5588 if (!cfg80211_supported_cipher_suite(
5590 settings->ciphers_pairwise[i]))
5594 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5595 settings->cipher_group =
5596 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5597 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5598 settings->cipher_group))
5602 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5603 settings->wpa_versions =
5604 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5605 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5609 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5613 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5614 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5615 settings->n_akm_suites = len / sizeof(u32);
5617 if (len % sizeof(u32))
5620 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5623 memcpy(settings->akm_suites, data, len);
5629 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5632 struct net_device *dev = info->user_ptr[1];
5633 struct cfg80211_crypto_settings crypto;
5634 struct ieee80211_channel *chan;
5635 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5636 int err, ssid_len, ie_len = 0;
5637 bool use_mfp = false;
5639 struct ieee80211_ht_cap *ht_capa = NULL;
5640 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5642 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5645 if (!info->attrs[NL80211_ATTR_MAC] ||
5646 !info->attrs[NL80211_ATTR_SSID] ||
5647 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5650 if (!rdev->ops->assoc)
5653 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5654 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5657 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5659 chan = ieee80211_get_channel(&rdev->wiphy,
5660 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5661 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5664 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5665 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5667 if (info->attrs[NL80211_ATTR_IE]) {
5668 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5669 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5672 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5673 enum nl80211_mfp mfp =
5674 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5675 if (mfp == NL80211_MFP_REQUIRED)
5677 else if (mfp != NL80211_MFP_NO)
5681 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5682 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5684 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5685 flags |= ASSOC_REQ_DISABLE_HT;
5687 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5689 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5691 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5694 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5697 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5699 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5700 ssid, ssid_len, ie, ie_len, use_mfp,
5701 &crypto, flags, ht_capa,
5707 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5710 struct net_device *dev = info->user_ptr[1];
5711 const u8 *ie = NULL, *bssid;
5714 bool local_state_change;
5716 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5719 if (!info->attrs[NL80211_ATTR_MAC])
5722 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5725 if (!rdev->ops->deauth)
5728 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5729 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5732 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5734 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5735 if (reason_code == 0) {
5736 /* Reason Code 0 is reserved */
5740 if (info->attrs[NL80211_ATTR_IE]) {
5741 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5742 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5745 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5747 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5748 local_state_change);
5751 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5754 struct net_device *dev = info->user_ptr[1];
5755 const u8 *ie = NULL, *bssid;
5758 bool local_state_change;
5760 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5763 if (!info->attrs[NL80211_ATTR_MAC])
5766 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5769 if (!rdev->ops->disassoc)
5772 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5773 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5776 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5778 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5779 if (reason_code == 0) {
5780 /* Reason Code 0 is reserved */
5784 if (info->attrs[NL80211_ATTR_IE]) {
5785 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5786 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5789 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5791 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5792 local_state_change);
5796 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5797 int mcast_rate[IEEE80211_NUM_BANDS],
5800 struct wiphy *wiphy = &rdev->wiphy;
5804 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5805 struct ieee80211_supported_band *sband;
5807 sband = wiphy->bands[band];
5811 for (i = 0; i < sband->n_bitrates; i++) {
5812 if (sband->bitrates[i].bitrate == rateval) {
5813 mcast_rate[band] = i + 1;
5823 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5825 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5826 struct net_device *dev = info->user_ptr[1];
5827 struct cfg80211_ibss_params ibss;
5828 struct wiphy *wiphy;
5829 struct cfg80211_cached_keys *connkeys = NULL;
5832 memset(&ibss, 0, sizeof(ibss));
5834 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5837 if (!info->attrs[NL80211_ATTR_SSID] ||
5838 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5841 ibss.beacon_interval = 100;
5843 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5844 ibss.beacon_interval =
5845 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5846 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5850 if (!rdev->ops->join_ibss)
5853 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5856 wiphy = &rdev->wiphy;
5858 if (info->attrs[NL80211_ATTR_MAC]) {
5859 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5861 if (!is_valid_ether_addr(ibss.bssid))
5864 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5865 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5867 if (info->attrs[NL80211_ATTR_IE]) {
5868 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5869 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5872 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5876 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
5879 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5881 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5882 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5885 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5886 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5888 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5890 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5892 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5893 struct ieee80211_supported_band *sband =
5894 wiphy->bands[ibss.chandef.chan->band];
5896 err = ieee80211_get_ratemask(sband, rates, n_rates,
5902 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5903 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5904 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5907 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5910 connkeys = nl80211_parse_connkeys(rdev,
5911 info->attrs[NL80211_ATTR_KEYS],
5913 if (IS_ERR(connkeys))
5914 return PTR_ERR(connkeys);
5916 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5924 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5926 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5932 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5934 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5935 struct net_device *dev = info->user_ptr[1];
5937 if (!rdev->ops->leave_ibss)
5940 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5943 return cfg80211_leave_ibss(rdev, dev, false);
5946 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5948 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5949 struct net_device *dev = info->user_ptr[1];
5950 int mcast_rate[IEEE80211_NUM_BANDS];
5954 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5955 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5958 if (!rdev->ops->set_mcast_rate)
5961 memset(mcast_rate, 0, sizeof(mcast_rate));
5963 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5966 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
5967 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
5970 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
5976 #ifdef CONFIG_NL80211_TESTMODE
5977 static struct genl_multicast_group nl80211_testmode_mcgrp = {
5981 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
5983 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5986 if (!info->attrs[NL80211_ATTR_TESTDATA])
5990 if (rdev->ops->testmode_cmd) {
5991 rdev->testmode_info = info;
5992 err = rdev_testmode_cmd(rdev,
5993 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
5994 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
5995 rdev->testmode_info = NULL;
6001 static int nl80211_testmode_dump(struct sk_buff *skb,
6002 struct netlink_callback *cb)
6004 struct cfg80211_registered_device *rdev;
6012 * 0 is a valid index, but not valid for args[0],
6013 * so we need to offset by 1.
6015 phy_idx = cb->args[0] - 1;
6017 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6018 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6023 mutex_lock(&cfg80211_mutex);
6024 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6025 nl80211_fam.attrbuf);
6027 mutex_unlock(&cfg80211_mutex);
6028 return PTR_ERR(rdev);
6030 phy_idx = rdev->wiphy_idx;
6032 mutex_unlock(&cfg80211_mutex);
6034 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6036 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6040 data = nla_data((void *)cb->args[1]);
6041 data_len = nla_len((void *)cb->args[1]);
6044 mutex_lock(&cfg80211_mutex);
6045 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6047 mutex_unlock(&cfg80211_mutex);
6050 cfg80211_lock_rdev(rdev);
6051 mutex_unlock(&cfg80211_mutex);
6053 if (!rdev->ops->testmode_dump) {
6059 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6060 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6061 NL80211_CMD_TESTMODE);
6062 struct nlattr *tmdata;
6064 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6065 genlmsg_cancel(skb, hdr);
6069 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6071 genlmsg_cancel(skb, hdr);
6074 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6075 nla_nest_end(skb, tmdata);
6077 if (err == -ENOBUFS || err == -ENOENT) {
6078 genlmsg_cancel(skb, hdr);
6081 genlmsg_cancel(skb, hdr);
6085 genlmsg_end(skb, hdr);
6090 cb->args[0] = phy_idx + 1;
6092 cfg80211_unlock_rdev(rdev);
6096 static struct sk_buff *
6097 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6098 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6100 struct sk_buff *skb;
6102 struct nlattr *data;
6104 skb = nlmsg_new(approxlen + 100, gfp);
6108 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6114 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6115 goto nla_put_failure;
6116 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6118 ((void **)skb->cb)[0] = rdev;
6119 ((void **)skb->cb)[1] = hdr;
6120 ((void **)skb->cb)[2] = data;
6129 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6132 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6134 if (WARN_ON(!rdev->testmode_info))
6137 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6138 rdev->testmode_info->snd_portid,
6139 rdev->testmode_info->snd_seq,
6142 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6144 int cfg80211_testmode_reply(struct sk_buff *skb)
6146 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6147 void *hdr = ((void **)skb->cb)[1];
6148 struct nlattr *data = ((void **)skb->cb)[2];
6150 if (WARN_ON(!rdev->testmode_info)) {
6155 nla_nest_end(skb, data);
6156 genlmsg_end(skb, hdr);
6157 return genlmsg_reply(skb, rdev->testmode_info);
6159 EXPORT_SYMBOL(cfg80211_testmode_reply);
6161 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6162 int approxlen, gfp_t gfp)
6164 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6166 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6168 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6170 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6172 void *hdr = ((void **)skb->cb)[1];
6173 struct nlattr *data = ((void **)skb->cb)[2];
6175 nla_nest_end(skb, data);
6176 genlmsg_end(skb, hdr);
6177 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6179 EXPORT_SYMBOL(cfg80211_testmode_event);
6182 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6185 struct net_device *dev = info->user_ptr[1];
6186 struct cfg80211_connect_params connect;
6187 struct wiphy *wiphy;
6188 struct cfg80211_cached_keys *connkeys = NULL;
6191 memset(&connect, 0, sizeof(connect));
6193 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6196 if (!info->attrs[NL80211_ATTR_SSID] ||
6197 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6200 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6202 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6203 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6204 NL80211_CMD_CONNECT))
6207 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6209 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6211 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6212 NL80211_MAX_NR_CIPHER_SUITES);
6216 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6217 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6220 wiphy = &rdev->wiphy;
6222 connect.bg_scan_period = -1;
6223 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6224 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6225 connect.bg_scan_period =
6226 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6229 if (info->attrs[NL80211_ATTR_MAC])
6230 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6231 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6232 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6234 if (info->attrs[NL80211_ATTR_IE]) {
6235 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6236 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6239 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6240 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6241 if (connect.mfp != NL80211_MFP_REQUIRED &&
6242 connect.mfp != NL80211_MFP_NO)
6245 connect.mfp = NL80211_MFP_NO;
6248 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6250 ieee80211_get_channel(wiphy,
6251 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6252 if (!connect.channel ||
6253 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6257 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6258 connkeys = nl80211_parse_connkeys(rdev,
6259 info->attrs[NL80211_ATTR_KEYS], NULL);
6260 if (IS_ERR(connkeys))
6261 return PTR_ERR(connkeys);
6264 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6265 connect.flags |= ASSOC_REQ_DISABLE_HT;
6267 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6268 memcpy(&connect.ht_capa_mask,
6269 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6270 sizeof(connect.ht_capa_mask));
6272 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6273 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6277 memcpy(&connect.ht_capa,
6278 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6279 sizeof(connect.ht_capa));
6282 err = cfg80211_connect(rdev, dev, &connect, connkeys);
6288 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6291 struct net_device *dev = info->user_ptr[1];
6294 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6295 reason = WLAN_REASON_DEAUTH_LEAVING;
6297 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6302 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6303 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6306 return cfg80211_disconnect(rdev, dev, reason, true);
6309 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6316 if (!info->attrs[NL80211_ATTR_PID])
6319 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6321 net = get_net_ns_by_pid(pid);
6323 return PTR_ERR(net);
6327 /* check if anything to do */
6328 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6329 err = cfg80211_switch_netns(rdev, net);
6335 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6337 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6338 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6339 struct cfg80211_pmksa *pmksa) = NULL;
6340 struct net_device *dev = info->user_ptr[1];
6341 struct cfg80211_pmksa pmksa;
6343 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6345 if (!info->attrs[NL80211_ATTR_MAC])
6348 if (!info->attrs[NL80211_ATTR_PMKID])
6351 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6352 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6355 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6358 switch (info->genlhdr->cmd) {
6359 case NL80211_CMD_SET_PMKSA:
6360 rdev_ops = rdev->ops->set_pmksa;
6362 case NL80211_CMD_DEL_PMKSA:
6363 rdev_ops = rdev->ops->del_pmksa;
6373 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6376 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6378 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6379 struct net_device *dev = info->user_ptr[1];
6381 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6382 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6385 if (!rdev->ops->flush_pmksa)
6388 return rdev_flush_pmksa(rdev, dev);
6391 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6394 struct net_device *dev = info->user_ptr[1];
6395 u8 action_code, dialog_token;
6399 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6400 !rdev->ops->tdls_mgmt)
6403 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6404 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6405 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6406 !info->attrs[NL80211_ATTR_IE] ||
6407 !info->attrs[NL80211_ATTR_MAC])
6410 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6411 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6412 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6413 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6415 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6416 dialog_token, status_code,
6417 nla_data(info->attrs[NL80211_ATTR_IE]),
6418 nla_len(info->attrs[NL80211_ATTR_IE]));
6421 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6423 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6424 struct net_device *dev = info->user_ptr[1];
6425 enum nl80211_tdls_operation operation;
6428 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6429 !rdev->ops->tdls_oper)
6432 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6433 !info->attrs[NL80211_ATTR_MAC])
6436 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6437 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6439 return rdev_tdls_oper(rdev, dev, peer, operation);
6442 static int nl80211_remain_on_channel(struct sk_buff *skb,
6443 struct genl_info *info)
6445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6446 struct wireless_dev *wdev = info->user_ptr[1];
6447 struct cfg80211_chan_def chandef;
6448 struct sk_buff *msg;
6454 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6455 !info->attrs[NL80211_ATTR_DURATION])
6458 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6460 if (!rdev->ops->remain_on_channel ||
6461 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6465 * We should be on that channel for at least a minimum amount of
6466 * time (10ms) but no longer than the driver supports.
6468 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6469 duration > rdev->wiphy.max_remain_on_channel_duration)
6472 err = nl80211_parse_chandef(rdev, info, &chandef);
6476 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6480 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6481 NL80211_CMD_REMAIN_ON_CHANNEL);
6488 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6494 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6495 goto nla_put_failure;
6497 genlmsg_end(msg, hdr);
6499 return genlmsg_reply(msg, info);
6508 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6509 struct genl_info *info)
6511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6512 struct wireless_dev *wdev = info->user_ptr[1];
6515 if (!info->attrs[NL80211_ATTR_COOKIE])
6518 if (!rdev->ops->cancel_remain_on_channel)
6521 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6523 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6526 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6527 u8 *rates, u8 rates_len)
6532 for (i = 0; i < rates_len; i++) {
6533 int rate = (rates[i] & 0x7f) * 5;
6535 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6536 struct ieee80211_rate *srate =
6537 &sband->bitrates[ridx];
6538 if (rate == srate->bitrate) {
6543 if (ridx == sband->n_bitrates)
6544 return 0; /* rate not found */
6550 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6551 u8 *rates, u8 rates_len,
6552 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6556 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6558 for (i = 0; i < rates_len; i++) {
6561 ridx = rates[i] / 8;
6562 rbit = BIT(rates[i] % 8);
6564 /* check validity */
6565 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6568 /* check availability */
6569 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6578 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6579 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6580 .len = NL80211_MAX_SUPP_RATES },
6581 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6582 .len = NL80211_MAX_SUPP_HT_RATES },
6585 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6586 struct genl_info *info)
6588 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6590 struct cfg80211_bitrate_mask mask;
6592 struct net_device *dev = info->user_ptr[1];
6593 struct nlattr *tx_rates;
6594 struct ieee80211_supported_band *sband;
6596 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6599 if (!rdev->ops->set_bitrate_mask)
6602 memset(&mask, 0, sizeof(mask));
6603 /* Default to all rates enabled */
6604 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6605 sband = rdev->wiphy.bands[i];
6606 mask.control[i].legacy =
6607 sband ? (1 << sband->n_bitrates) - 1 : 0;
6609 memcpy(mask.control[i].mcs,
6610 sband->ht_cap.mcs.rx_mask,
6611 sizeof(mask.control[i].mcs));
6613 memset(mask.control[i].mcs, 0,
6614 sizeof(mask.control[i].mcs));
6618 * The nested attribute uses enum nl80211_band as the index. This maps
6619 * directly to the enum ieee80211_band values used in cfg80211.
6621 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6622 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6624 enum ieee80211_band band = nla_type(tx_rates);
6625 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6627 sband = rdev->wiphy.bands[band];
6630 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6631 nla_len(tx_rates), nl80211_txattr_policy);
6632 if (tb[NL80211_TXRATE_LEGACY]) {
6633 mask.control[band].legacy = rateset_to_mask(
6635 nla_data(tb[NL80211_TXRATE_LEGACY]),
6636 nla_len(tb[NL80211_TXRATE_LEGACY]));
6637 if ((mask.control[band].legacy == 0) &&
6638 nla_len(tb[NL80211_TXRATE_LEGACY]))
6641 if (tb[NL80211_TXRATE_MCS]) {
6642 if (!ht_rateset_to_mask(
6644 nla_data(tb[NL80211_TXRATE_MCS]),
6645 nla_len(tb[NL80211_TXRATE_MCS]),
6646 mask.control[band].mcs))
6650 if (mask.control[band].legacy == 0) {
6651 /* don't allow empty legacy rates if HT
6652 * is not even supported. */
6653 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6656 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6657 if (mask.control[band].mcs[i])
6660 /* legacy and mcs rates may not be both empty */
6661 if (i == IEEE80211_HT_MCS_MASK_LEN)
6666 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6669 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6672 struct wireless_dev *wdev = info->user_ptr[1];
6673 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6675 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6678 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6679 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6681 switch (wdev->iftype) {
6682 case NL80211_IFTYPE_STATION:
6683 case NL80211_IFTYPE_ADHOC:
6684 case NL80211_IFTYPE_P2P_CLIENT:
6685 case NL80211_IFTYPE_AP:
6686 case NL80211_IFTYPE_AP_VLAN:
6687 case NL80211_IFTYPE_MESH_POINT:
6688 case NL80211_IFTYPE_P2P_GO:
6689 case NL80211_IFTYPE_P2P_DEVICE:
6695 /* not much point in registering if we can't reply */
6696 if (!rdev->ops->mgmt_tx)
6699 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6700 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6701 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6704 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6707 struct wireless_dev *wdev = info->user_ptr[1];
6708 struct cfg80211_chan_def chandef;
6712 struct sk_buff *msg = NULL;
6713 unsigned int wait = 0;
6714 bool offchan, no_cck, dont_wait_for_ack;
6716 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6718 if (!info->attrs[NL80211_ATTR_FRAME])
6721 if (!rdev->ops->mgmt_tx)
6724 switch (wdev->iftype) {
6725 case NL80211_IFTYPE_STATION:
6726 case NL80211_IFTYPE_ADHOC:
6727 case NL80211_IFTYPE_P2P_CLIENT:
6728 case NL80211_IFTYPE_AP:
6729 case NL80211_IFTYPE_AP_VLAN:
6730 case NL80211_IFTYPE_MESH_POINT:
6731 case NL80211_IFTYPE_P2P_GO:
6732 case NL80211_IFTYPE_P2P_DEVICE:
6738 if (info->attrs[NL80211_ATTR_DURATION]) {
6739 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6741 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6744 * We should wait on the channel for at least a minimum amount
6745 * of time (10ms) but no longer than the driver supports.
6747 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6748 wait > rdev->wiphy.max_remain_on_channel_duration)
6753 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6755 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6758 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6760 err = nl80211_parse_chandef(rdev, info, &chandef);
6764 if (!dont_wait_for_ack) {
6765 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6769 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6778 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
6779 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6780 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6781 no_cck, dont_wait_for_ack, &cookie);
6786 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6787 goto nla_put_failure;
6789 genlmsg_end(msg, hdr);
6790 return genlmsg_reply(msg, info);
6802 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6805 struct wireless_dev *wdev = info->user_ptr[1];
6808 if (!info->attrs[NL80211_ATTR_COOKIE])
6811 if (!rdev->ops->mgmt_tx_cancel_wait)
6814 switch (wdev->iftype) {
6815 case NL80211_IFTYPE_STATION:
6816 case NL80211_IFTYPE_ADHOC:
6817 case NL80211_IFTYPE_P2P_CLIENT:
6818 case NL80211_IFTYPE_AP:
6819 case NL80211_IFTYPE_AP_VLAN:
6820 case NL80211_IFTYPE_P2P_GO:
6821 case NL80211_IFTYPE_P2P_DEVICE:
6827 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6829 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6832 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6834 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6835 struct wireless_dev *wdev;
6836 struct net_device *dev = info->user_ptr[1];
6841 if (!info->attrs[NL80211_ATTR_PS_STATE])
6844 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6846 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6849 wdev = dev->ieee80211_ptr;
6851 if (!rdev->ops->set_power_mgmt)
6854 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6856 if (state == wdev->ps)
6859 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6865 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6868 enum nl80211_ps_state ps_state;
6869 struct wireless_dev *wdev;
6870 struct net_device *dev = info->user_ptr[1];
6871 struct sk_buff *msg;
6875 wdev = dev->ieee80211_ptr;
6877 if (!rdev->ops->set_power_mgmt)
6880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6884 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6885 NL80211_CMD_GET_POWER_SAVE);
6892 ps_state = NL80211_PS_ENABLED;
6894 ps_state = NL80211_PS_DISABLED;
6896 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6897 goto nla_put_failure;
6899 genlmsg_end(msg, hdr);
6900 return genlmsg_reply(msg, info);
6909 static struct nla_policy
6910 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6911 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6912 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6913 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6914 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6915 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6916 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6919 static int nl80211_set_cqm_txe(struct genl_info *info,
6920 u32 rate, u32 pkts, u32 intvl)
6922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6923 struct wireless_dev *wdev;
6924 struct net_device *dev = info->user_ptr[1];
6926 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
6929 wdev = dev->ieee80211_ptr;
6931 if (!rdev->ops->set_cqm_txe_config)
6934 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6935 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6938 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6941 static int nl80211_set_cqm_rssi(struct genl_info *info,
6942 s32 threshold, u32 hysteresis)
6944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6945 struct wireless_dev *wdev;
6946 struct net_device *dev = info->user_ptr[1];
6951 wdev = dev->ieee80211_ptr;
6953 if (!rdev->ops->set_cqm_rssi_config)
6956 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6957 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6960 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6963 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6965 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
6969 cqm = info->attrs[NL80211_ATTR_CQM];
6975 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
6976 nl80211_attr_cqm_policy);
6980 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
6981 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
6984 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
6985 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
6986 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
6987 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
6988 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
6989 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
6990 u32 rate, pkts, intvl;
6991 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
6992 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
6993 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
6994 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7002 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7005 struct net_device *dev = info->user_ptr[1];
7006 struct mesh_config cfg;
7007 struct mesh_setup setup;
7010 /* start with default */
7011 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7012 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7014 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7015 /* and parse parameters if given */
7016 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7021 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7022 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7025 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7026 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7028 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7029 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7030 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7033 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7034 setup.beacon_interval =
7035 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7036 if (setup.beacon_interval < 10 ||
7037 setup.beacon_interval > 10000)
7041 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7043 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7044 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7048 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7049 /* parse additional setup parameters if given */
7050 err = nl80211_parse_mesh_setup(info, &setup);
7055 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7056 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7060 /* cfg80211_join_mesh() will sort it out */
7061 setup.chandef.chan = NULL;
7064 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7067 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7070 struct net_device *dev = info->user_ptr[1];
7072 return cfg80211_leave_mesh(rdev, dev);
7076 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7077 struct cfg80211_registered_device *rdev)
7079 struct nlattr *nl_pats, *nl_pat;
7082 if (!rdev->wowlan->n_patterns)
7085 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7089 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7090 nl_pat = nla_nest_start(msg, i + 1);
7093 pat_len = rdev->wowlan->patterns[i].pattern_len;
7094 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7095 DIV_ROUND_UP(pat_len, 8),
7096 rdev->wowlan->patterns[i].mask) ||
7097 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7098 pat_len, rdev->wowlan->patterns[i].pattern) ||
7099 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7100 rdev->wowlan->patterns[i].pkt_offset))
7102 nla_nest_end(msg, nl_pat);
7104 nla_nest_end(msg, nl_pats);
7109 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7110 struct cfg80211_wowlan_tcp *tcp)
7112 struct nlattr *nl_tcp;
7117 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7121 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7122 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7123 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7124 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7125 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7126 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7127 tcp->payload_len, tcp->payload) ||
7128 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7129 tcp->data_interval) ||
7130 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7131 tcp->wake_len, tcp->wake_data) ||
7132 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7133 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7136 if (tcp->payload_seq.len &&
7137 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7138 sizeof(tcp->payload_seq), &tcp->payload_seq))
7141 if (tcp->payload_tok.len &&
7142 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7143 sizeof(tcp->payload_tok) + tcp->tokens_size,
7150 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7153 struct sk_buff *msg;
7155 u32 size = NLMSG_DEFAULT_SIZE;
7157 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7158 !rdev->wiphy.wowlan.tcp)
7161 if (rdev->wowlan && rdev->wowlan->tcp) {
7162 /* adjust size to have room for all the data */
7163 size += rdev->wowlan->tcp->tokens_size +
7164 rdev->wowlan->tcp->payload_len +
7165 rdev->wowlan->tcp->wake_len +
7166 rdev->wowlan->tcp->wake_len / 8;
7169 msg = nlmsg_new(size, GFP_KERNEL);
7173 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7174 NL80211_CMD_GET_WOWLAN);
7176 goto nla_put_failure;
7179 struct nlattr *nl_wowlan;
7181 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7183 goto nla_put_failure;
7185 if ((rdev->wowlan->any &&
7186 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7187 (rdev->wowlan->disconnect &&
7188 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7189 (rdev->wowlan->magic_pkt &&
7190 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7191 (rdev->wowlan->gtk_rekey_failure &&
7192 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7193 (rdev->wowlan->eap_identity_req &&
7194 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7195 (rdev->wowlan->four_way_handshake &&
7196 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7197 (rdev->wowlan->rfkill_release &&
7198 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7199 goto nla_put_failure;
7201 if (nl80211_send_wowlan_patterns(msg, rdev))
7202 goto nla_put_failure;
7204 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7205 goto nla_put_failure;
7207 nla_nest_end(msg, nl_wowlan);
7210 genlmsg_end(msg, hdr);
7211 return genlmsg_reply(msg, info);
7218 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7219 struct nlattr *attr,
7220 struct cfg80211_wowlan *trig)
7222 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7223 struct cfg80211_wowlan_tcp *cfg;
7224 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7225 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7227 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7230 if (!rdev->wiphy.wowlan.tcp)
7233 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7234 nla_data(attr), nla_len(attr),
7235 nl80211_wowlan_tcp_policy);
7239 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7240 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7241 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7242 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7243 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7244 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7245 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7246 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7249 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7250 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7253 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7254 rdev->wiphy.wowlan.tcp->data_interval_max)
7257 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7258 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7261 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7262 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7265 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7266 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7268 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7269 tokens_size = tokln - sizeof(*tok);
7271 if (!tok->len || tokens_size % tok->len)
7273 if (!rdev->wiphy.wowlan.tcp->tok)
7275 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7277 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7279 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7281 if (tok->offset + tok->len > data_size)
7285 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7286 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7287 if (!rdev->wiphy.wowlan.tcp->seq)
7289 if (seq->len == 0 || seq->len > 4)
7291 if (seq->len + seq->offset > data_size)
7295 size = sizeof(*cfg);
7297 size += wake_size + wake_mask_size;
7298 size += tokens_size;
7300 cfg = kzalloc(size, GFP_KERNEL);
7303 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7304 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7305 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7307 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7308 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7312 /* allocate a socket and port for it and use it */
7313 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7314 IPPROTO_TCP, &cfg->sock, 1);
7319 if (inet_csk_get_port(cfg->sock->sk, port)) {
7320 sock_release(cfg->sock);
7324 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7330 cfg->src_port = port;
7333 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7334 cfg->payload_len = data_size;
7335 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7336 memcpy((void *)cfg->payload,
7337 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7340 cfg->payload_seq = *seq;
7341 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7342 cfg->wake_len = wake_size;
7343 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7344 memcpy((void *)cfg->wake_data,
7345 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7347 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7348 data_size + wake_size;
7349 memcpy((void *)cfg->wake_mask,
7350 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7353 cfg->tokens_size = tokens_size;
7354 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7362 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7365 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7366 struct cfg80211_wowlan new_triggers = {};
7367 struct cfg80211_wowlan *ntrig;
7368 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7370 bool prev_enabled = rdev->wowlan;
7372 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7373 !rdev->wiphy.wowlan.tcp)
7376 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7377 cfg80211_rdev_free_wowlan(rdev);
7378 rdev->wowlan = NULL;
7382 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7383 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7384 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7385 nl80211_wowlan_policy);
7389 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7390 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7392 new_triggers.any = true;
7395 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7396 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7398 new_triggers.disconnect = true;
7401 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7402 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7404 new_triggers.magic_pkt = true;
7407 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7410 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7411 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7413 new_triggers.gtk_rekey_failure = true;
7416 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7417 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7419 new_triggers.eap_identity_req = true;
7422 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7423 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7425 new_triggers.four_way_handshake = true;
7428 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7429 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7431 new_triggers.rfkill_release = true;
7434 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7437 int rem, pat_len, mask_len, pkt_offset;
7438 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7440 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7443 if (n_patterns > wowlan->n_patterns)
7446 new_triggers.patterns = kcalloc(n_patterns,
7447 sizeof(new_triggers.patterns[0]),
7449 if (!new_triggers.patterns)
7452 new_triggers.n_patterns = n_patterns;
7455 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7457 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7458 nla_data(pat), nla_len(pat), NULL);
7460 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7461 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7463 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7464 mask_len = DIV_ROUND_UP(pat_len, 8);
7465 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7468 if (pat_len > wowlan->pattern_max_len ||
7469 pat_len < wowlan->pattern_min_len)
7472 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7475 pkt_offset = nla_get_u32(
7476 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7477 if (pkt_offset > wowlan->max_pkt_offset)
7479 new_triggers.patterns[i].pkt_offset = pkt_offset;
7481 new_triggers.patterns[i].mask =
7482 kmalloc(mask_len + pat_len, GFP_KERNEL);
7483 if (!new_triggers.patterns[i].mask) {
7487 new_triggers.patterns[i].pattern =
7488 new_triggers.patterns[i].mask + mask_len;
7489 memcpy(new_triggers.patterns[i].mask,
7490 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7492 new_triggers.patterns[i].pattern_len = pat_len;
7493 memcpy(new_triggers.patterns[i].pattern,
7494 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7500 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7501 err = nl80211_parse_wowlan_tcp(
7502 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7508 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7513 cfg80211_rdev_free_wowlan(rdev);
7514 rdev->wowlan = ntrig;
7517 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
7518 rdev_set_wakeup(rdev, rdev->wowlan);
7522 for (i = 0; i < new_triggers.n_patterns; i++)
7523 kfree(new_triggers.patterns[i].mask);
7524 kfree(new_triggers.patterns);
7525 if (new_triggers.tcp && new_triggers.tcp->sock)
7526 sock_release(new_triggers.tcp->sock);
7527 kfree(new_triggers.tcp);
7532 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7535 struct net_device *dev = info->user_ptr[1];
7536 struct wireless_dev *wdev = dev->ieee80211_ptr;
7537 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7538 struct cfg80211_gtk_rekey_data rekey_data;
7541 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7544 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7545 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7546 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7547 nl80211_rekey_policy);
7551 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7553 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7555 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7558 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7560 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7562 memcpy(rekey_data.replay_ctr,
7563 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7564 NL80211_REPLAY_CTR_LEN);
7567 if (!wdev->current_bss) {
7572 if (!rdev->ops->set_rekey_data) {
7577 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
7583 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7584 struct genl_info *info)
7586 struct net_device *dev = info->user_ptr[1];
7587 struct wireless_dev *wdev = dev->ieee80211_ptr;
7589 if (wdev->iftype != NL80211_IFTYPE_AP &&
7590 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7593 if (wdev->ap_unexpected_nlportid)
7596 wdev->ap_unexpected_nlportid = info->snd_portid;
7600 static int nl80211_probe_client(struct sk_buff *skb,
7601 struct genl_info *info)
7603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7604 struct net_device *dev = info->user_ptr[1];
7605 struct wireless_dev *wdev = dev->ieee80211_ptr;
7606 struct sk_buff *msg;
7612 if (wdev->iftype != NL80211_IFTYPE_AP &&
7613 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7616 if (!info->attrs[NL80211_ATTR_MAC])
7619 if (!rdev->ops->probe_client)
7622 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7626 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7627 NL80211_CMD_PROBE_CLIENT);
7634 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7636 err = rdev_probe_client(rdev, dev, addr, &cookie);
7640 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7641 goto nla_put_failure;
7643 genlmsg_end(msg, hdr);
7645 return genlmsg_reply(msg, info);
7654 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7657 struct cfg80211_beacon_registration *reg, *nreg;
7660 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7663 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7667 /* First, check if already registered. */
7668 spin_lock_bh(&rdev->beacon_registrations_lock);
7669 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7670 if (reg->nlportid == info->snd_portid) {
7675 /* Add it to the list */
7676 nreg->nlportid = info->snd_portid;
7677 list_add(&nreg->list, &rdev->beacon_registrations);
7679 spin_unlock_bh(&rdev->beacon_registrations_lock);
7683 spin_unlock_bh(&rdev->beacon_registrations_lock);
7688 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
7690 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7691 struct wireless_dev *wdev = info->user_ptr[1];
7694 if (!rdev->ops->start_p2p_device)
7697 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7700 if (wdev->p2p_started)
7703 mutex_lock(&rdev->devlist_mtx);
7704 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7705 mutex_unlock(&rdev->devlist_mtx);
7709 err = rdev_start_p2p_device(rdev, wdev);
7713 wdev->p2p_started = true;
7714 mutex_lock(&rdev->devlist_mtx);
7716 mutex_unlock(&rdev->devlist_mtx);
7721 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7724 struct wireless_dev *wdev = info->user_ptr[1];
7726 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7729 if (!rdev->ops->stop_p2p_device)
7732 if (!wdev->p2p_started)
7735 rdev_stop_p2p_device(rdev, wdev);
7736 wdev->p2p_started = false;
7738 mutex_lock(&rdev->devlist_mtx);
7740 mutex_unlock(&rdev->devlist_mtx);
7742 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7743 rdev->scan_req->aborted = true;
7744 ___cfg80211_scan_done(rdev, true);
7750 #define NL80211_FLAG_NEED_WIPHY 0x01
7751 #define NL80211_FLAG_NEED_NETDEV 0x02
7752 #define NL80211_FLAG_NEED_RTNL 0x04
7753 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7754 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7755 NL80211_FLAG_CHECK_NETDEV_UP)
7756 #define NL80211_FLAG_NEED_WDEV 0x10
7757 /* If a netdev is associated, it must be UP, P2P must be started */
7758 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7759 NL80211_FLAG_CHECK_NETDEV_UP)
7761 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7762 struct genl_info *info)
7764 struct cfg80211_registered_device *rdev;
7765 struct wireless_dev *wdev;
7766 struct net_device *dev;
7767 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7772 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7773 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7777 return PTR_ERR(rdev);
7779 info->user_ptr[0] = rdev;
7780 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7781 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7782 mutex_lock(&cfg80211_mutex);
7783 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7786 mutex_unlock(&cfg80211_mutex);
7789 return PTR_ERR(wdev);
7793 rdev = wiphy_to_dev(wdev->wiphy);
7795 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7797 mutex_unlock(&cfg80211_mutex);
7803 info->user_ptr[1] = dev;
7805 info->user_ptr[1] = wdev;
7809 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7810 !netif_running(dev)) {
7811 mutex_unlock(&cfg80211_mutex);
7818 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7819 if (!wdev->p2p_started) {
7820 mutex_unlock(&cfg80211_mutex);
7827 cfg80211_lock_rdev(rdev);
7829 mutex_unlock(&cfg80211_mutex);
7831 info->user_ptr[0] = rdev;
7837 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7838 struct genl_info *info)
7840 if (info->user_ptr[0])
7841 cfg80211_unlock_rdev(info->user_ptr[0]);
7842 if (info->user_ptr[1]) {
7843 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7844 struct wireless_dev *wdev = info->user_ptr[1];
7847 dev_put(wdev->netdev);
7849 dev_put(info->user_ptr[1]);
7852 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7856 static struct genl_ops nl80211_ops[] = {
7858 .cmd = NL80211_CMD_GET_WIPHY,
7859 .doit = nl80211_get_wiphy,
7860 .dumpit = nl80211_dump_wiphy,
7861 .policy = nl80211_policy,
7862 /* can be retrieved by unprivileged users */
7863 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7866 .cmd = NL80211_CMD_SET_WIPHY,
7867 .doit = nl80211_set_wiphy,
7868 .policy = nl80211_policy,
7869 .flags = GENL_ADMIN_PERM,
7870 .internal_flags = NL80211_FLAG_NEED_RTNL,
7873 .cmd = NL80211_CMD_GET_INTERFACE,
7874 .doit = nl80211_get_interface,
7875 .dumpit = nl80211_dump_interface,
7876 .policy = nl80211_policy,
7877 /* can be retrieved by unprivileged users */
7878 .internal_flags = NL80211_FLAG_NEED_WDEV,
7881 .cmd = NL80211_CMD_SET_INTERFACE,
7882 .doit = nl80211_set_interface,
7883 .policy = nl80211_policy,
7884 .flags = GENL_ADMIN_PERM,
7885 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7886 NL80211_FLAG_NEED_RTNL,
7889 .cmd = NL80211_CMD_NEW_INTERFACE,
7890 .doit = nl80211_new_interface,
7891 .policy = nl80211_policy,
7892 .flags = GENL_ADMIN_PERM,
7893 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7894 NL80211_FLAG_NEED_RTNL,
7897 .cmd = NL80211_CMD_DEL_INTERFACE,
7898 .doit = nl80211_del_interface,
7899 .policy = nl80211_policy,
7900 .flags = GENL_ADMIN_PERM,
7901 .internal_flags = NL80211_FLAG_NEED_WDEV |
7902 NL80211_FLAG_NEED_RTNL,
7905 .cmd = NL80211_CMD_GET_KEY,
7906 .doit = nl80211_get_key,
7907 .policy = nl80211_policy,
7908 .flags = GENL_ADMIN_PERM,
7909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7910 NL80211_FLAG_NEED_RTNL,
7913 .cmd = NL80211_CMD_SET_KEY,
7914 .doit = nl80211_set_key,
7915 .policy = nl80211_policy,
7916 .flags = GENL_ADMIN_PERM,
7917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7918 NL80211_FLAG_NEED_RTNL,
7921 .cmd = NL80211_CMD_NEW_KEY,
7922 .doit = nl80211_new_key,
7923 .policy = nl80211_policy,
7924 .flags = GENL_ADMIN_PERM,
7925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7926 NL80211_FLAG_NEED_RTNL,
7929 .cmd = NL80211_CMD_DEL_KEY,
7930 .doit = nl80211_del_key,
7931 .policy = nl80211_policy,
7932 .flags = GENL_ADMIN_PERM,
7933 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7934 NL80211_FLAG_NEED_RTNL,
7937 .cmd = NL80211_CMD_SET_BEACON,
7938 .policy = nl80211_policy,
7939 .flags = GENL_ADMIN_PERM,
7940 .doit = nl80211_set_beacon,
7941 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7942 NL80211_FLAG_NEED_RTNL,
7945 .cmd = NL80211_CMD_START_AP,
7946 .policy = nl80211_policy,
7947 .flags = GENL_ADMIN_PERM,
7948 .doit = nl80211_start_ap,
7949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7950 NL80211_FLAG_NEED_RTNL,
7953 .cmd = NL80211_CMD_STOP_AP,
7954 .policy = nl80211_policy,
7955 .flags = GENL_ADMIN_PERM,
7956 .doit = nl80211_stop_ap,
7957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7958 NL80211_FLAG_NEED_RTNL,
7961 .cmd = NL80211_CMD_GET_STATION,
7962 .doit = nl80211_get_station,
7963 .dumpit = nl80211_dump_station,
7964 .policy = nl80211_policy,
7965 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7966 NL80211_FLAG_NEED_RTNL,
7969 .cmd = NL80211_CMD_SET_STATION,
7970 .doit = nl80211_set_station,
7971 .policy = nl80211_policy,
7972 .flags = GENL_ADMIN_PERM,
7973 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7974 NL80211_FLAG_NEED_RTNL,
7977 .cmd = NL80211_CMD_NEW_STATION,
7978 .doit = nl80211_new_station,
7979 .policy = nl80211_policy,
7980 .flags = GENL_ADMIN_PERM,
7981 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7982 NL80211_FLAG_NEED_RTNL,
7985 .cmd = NL80211_CMD_DEL_STATION,
7986 .doit = nl80211_del_station,
7987 .policy = nl80211_policy,
7988 .flags = GENL_ADMIN_PERM,
7989 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7990 NL80211_FLAG_NEED_RTNL,
7993 .cmd = NL80211_CMD_GET_MPATH,
7994 .doit = nl80211_get_mpath,
7995 .dumpit = nl80211_dump_mpath,
7996 .policy = nl80211_policy,
7997 .flags = GENL_ADMIN_PERM,
7998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7999 NL80211_FLAG_NEED_RTNL,
8002 .cmd = NL80211_CMD_SET_MPATH,
8003 .doit = nl80211_set_mpath,
8004 .policy = nl80211_policy,
8005 .flags = GENL_ADMIN_PERM,
8006 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8007 NL80211_FLAG_NEED_RTNL,
8010 .cmd = NL80211_CMD_NEW_MPATH,
8011 .doit = nl80211_new_mpath,
8012 .policy = nl80211_policy,
8013 .flags = GENL_ADMIN_PERM,
8014 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8015 NL80211_FLAG_NEED_RTNL,
8018 .cmd = NL80211_CMD_DEL_MPATH,
8019 .doit = nl80211_del_mpath,
8020 .policy = nl80211_policy,
8021 .flags = GENL_ADMIN_PERM,
8022 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8023 NL80211_FLAG_NEED_RTNL,
8026 .cmd = NL80211_CMD_SET_BSS,
8027 .doit = nl80211_set_bss,
8028 .policy = nl80211_policy,
8029 .flags = GENL_ADMIN_PERM,
8030 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8031 NL80211_FLAG_NEED_RTNL,
8034 .cmd = NL80211_CMD_GET_REG,
8035 .doit = nl80211_get_reg,
8036 .policy = nl80211_policy,
8037 /* can be retrieved by unprivileged users */
8040 .cmd = NL80211_CMD_SET_REG,
8041 .doit = nl80211_set_reg,
8042 .policy = nl80211_policy,
8043 .flags = GENL_ADMIN_PERM,
8046 .cmd = NL80211_CMD_REQ_SET_REG,
8047 .doit = nl80211_req_set_reg,
8048 .policy = nl80211_policy,
8049 .flags = GENL_ADMIN_PERM,
8052 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8053 .doit = nl80211_get_mesh_config,
8054 .policy = nl80211_policy,
8055 /* can be retrieved by unprivileged users */
8056 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8057 NL80211_FLAG_NEED_RTNL,
8060 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8061 .doit = nl80211_update_mesh_config,
8062 .policy = nl80211_policy,
8063 .flags = GENL_ADMIN_PERM,
8064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8065 NL80211_FLAG_NEED_RTNL,
8068 .cmd = NL80211_CMD_TRIGGER_SCAN,
8069 .doit = nl80211_trigger_scan,
8070 .policy = nl80211_policy,
8071 .flags = GENL_ADMIN_PERM,
8072 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8073 NL80211_FLAG_NEED_RTNL,
8076 .cmd = NL80211_CMD_GET_SCAN,
8077 .policy = nl80211_policy,
8078 .dumpit = nl80211_dump_scan,
8081 .cmd = NL80211_CMD_START_SCHED_SCAN,
8082 .doit = nl80211_start_sched_scan,
8083 .policy = nl80211_policy,
8084 .flags = GENL_ADMIN_PERM,
8085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8086 NL80211_FLAG_NEED_RTNL,
8089 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8090 .doit = nl80211_stop_sched_scan,
8091 .policy = nl80211_policy,
8092 .flags = GENL_ADMIN_PERM,
8093 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8094 NL80211_FLAG_NEED_RTNL,
8097 .cmd = NL80211_CMD_AUTHENTICATE,
8098 .doit = nl80211_authenticate,
8099 .policy = nl80211_policy,
8100 .flags = GENL_ADMIN_PERM,
8101 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8102 NL80211_FLAG_NEED_RTNL,
8105 .cmd = NL80211_CMD_ASSOCIATE,
8106 .doit = nl80211_associate,
8107 .policy = nl80211_policy,
8108 .flags = GENL_ADMIN_PERM,
8109 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8110 NL80211_FLAG_NEED_RTNL,
8113 .cmd = NL80211_CMD_DEAUTHENTICATE,
8114 .doit = nl80211_deauthenticate,
8115 .policy = nl80211_policy,
8116 .flags = GENL_ADMIN_PERM,
8117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8118 NL80211_FLAG_NEED_RTNL,
8121 .cmd = NL80211_CMD_DISASSOCIATE,
8122 .doit = nl80211_disassociate,
8123 .policy = nl80211_policy,
8124 .flags = GENL_ADMIN_PERM,
8125 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8126 NL80211_FLAG_NEED_RTNL,
8129 .cmd = NL80211_CMD_JOIN_IBSS,
8130 .doit = nl80211_join_ibss,
8131 .policy = nl80211_policy,
8132 .flags = GENL_ADMIN_PERM,
8133 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8134 NL80211_FLAG_NEED_RTNL,
8137 .cmd = NL80211_CMD_LEAVE_IBSS,
8138 .doit = nl80211_leave_ibss,
8139 .policy = nl80211_policy,
8140 .flags = GENL_ADMIN_PERM,
8141 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8142 NL80211_FLAG_NEED_RTNL,
8144 #ifdef CONFIG_NL80211_TESTMODE
8146 .cmd = NL80211_CMD_TESTMODE,
8147 .doit = nl80211_testmode_do,
8148 .dumpit = nl80211_testmode_dump,
8149 .policy = nl80211_policy,
8150 .flags = GENL_ADMIN_PERM,
8151 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8152 NL80211_FLAG_NEED_RTNL,
8156 .cmd = NL80211_CMD_CONNECT,
8157 .doit = nl80211_connect,
8158 .policy = nl80211_policy,
8159 .flags = GENL_ADMIN_PERM,
8160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8161 NL80211_FLAG_NEED_RTNL,
8164 .cmd = NL80211_CMD_DISCONNECT,
8165 .doit = nl80211_disconnect,
8166 .policy = nl80211_policy,
8167 .flags = GENL_ADMIN_PERM,
8168 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8169 NL80211_FLAG_NEED_RTNL,
8172 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8173 .doit = nl80211_wiphy_netns,
8174 .policy = nl80211_policy,
8175 .flags = GENL_ADMIN_PERM,
8176 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8177 NL80211_FLAG_NEED_RTNL,
8180 .cmd = NL80211_CMD_GET_SURVEY,
8181 .policy = nl80211_policy,
8182 .dumpit = nl80211_dump_survey,
8185 .cmd = NL80211_CMD_SET_PMKSA,
8186 .doit = nl80211_setdel_pmksa,
8187 .policy = nl80211_policy,
8188 .flags = GENL_ADMIN_PERM,
8189 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8190 NL80211_FLAG_NEED_RTNL,
8193 .cmd = NL80211_CMD_DEL_PMKSA,
8194 .doit = nl80211_setdel_pmksa,
8195 .policy = nl80211_policy,
8196 .flags = GENL_ADMIN_PERM,
8197 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8198 NL80211_FLAG_NEED_RTNL,
8201 .cmd = NL80211_CMD_FLUSH_PMKSA,
8202 .doit = nl80211_flush_pmksa,
8203 .policy = nl80211_policy,
8204 .flags = GENL_ADMIN_PERM,
8205 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8206 NL80211_FLAG_NEED_RTNL,
8209 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8210 .doit = nl80211_remain_on_channel,
8211 .policy = nl80211_policy,
8212 .flags = GENL_ADMIN_PERM,
8213 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8214 NL80211_FLAG_NEED_RTNL,
8217 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8218 .doit = nl80211_cancel_remain_on_channel,
8219 .policy = nl80211_policy,
8220 .flags = GENL_ADMIN_PERM,
8221 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8222 NL80211_FLAG_NEED_RTNL,
8225 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8226 .doit = nl80211_set_tx_bitrate_mask,
8227 .policy = nl80211_policy,
8228 .flags = GENL_ADMIN_PERM,
8229 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8230 NL80211_FLAG_NEED_RTNL,
8233 .cmd = NL80211_CMD_REGISTER_FRAME,
8234 .doit = nl80211_register_mgmt,
8235 .policy = nl80211_policy,
8236 .flags = GENL_ADMIN_PERM,
8237 .internal_flags = NL80211_FLAG_NEED_WDEV |
8238 NL80211_FLAG_NEED_RTNL,
8241 .cmd = NL80211_CMD_FRAME,
8242 .doit = nl80211_tx_mgmt,
8243 .policy = nl80211_policy,
8244 .flags = GENL_ADMIN_PERM,
8245 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8246 NL80211_FLAG_NEED_RTNL,
8249 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8250 .doit = nl80211_tx_mgmt_cancel_wait,
8251 .policy = nl80211_policy,
8252 .flags = GENL_ADMIN_PERM,
8253 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8254 NL80211_FLAG_NEED_RTNL,
8257 .cmd = NL80211_CMD_SET_POWER_SAVE,
8258 .doit = nl80211_set_power_save,
8259 .policy = nl80211_policy,
8260 .flags = GENL_ADMIN_PERM,
8261 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8262 NL80211_FLAG_NEED_RTNL,
8265 .cmd = NL80211_CMD_GET_POWER_SAVE,
8266 .doit = nl80211_get_power_save,
8267 .policy = nl80211_policy,
8268 /* can be retrieved by unprivileged users */
8269 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8270 NL80211_FLAG_NEED_RTNL,
8273 .cmd = NL80211_CMD_SET_CQM,
8274 .doit = nl80211_set_cqm,
8275 .policy = nl80211_policy,
8276 .flags = GENL_ADMIN_PERM,
8277 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8278 NL80211_FLAG_NEED_RTNL,
8281 .cmd = NL80211_CMD_SET_CHANNEL,
8282 .doit = nl80211_set_channel,
8283 .policy = nl80211_policy,
8284 .flags = GENL_ADMIN_PERM,
8285 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8286 NL80211_FLAG_NEED_RTNL,
8289 .cmd = NL80211_CMD_SET_WDS_PEER,
8290 .doit = nl80211_set_wds_peer,
8291 .policy = nl80211_policy,
8292 .flags = GENL_ADMIN_PERM,
8293 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8294 NL80211_FLAG_NEED_RTNL,
8297 .cmd = NL80211_CMD_JOIN_MESH,
8298 .doit = nl80211_join_mesh,
8299 .policy = nl80211_policy,
8300 .flags = GENL_ADMIN_PERM,
8301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8302 NL80211_FLAG_NEED_RTNL,
8305 .cmd = NL80211_CMD_LEAVE_MESH,
8306 .doit = nl80211_leave_mesh,
8307 .policy = nl80211_policy,
8308 .flags = GENL_ADMIN_PERM,
8309 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8310 NL80211_FLAG_NEED_RTNL,
8314 .cmd = NL80211_CMD_GET_WOWLAN,
8315 .doit = nl80211_get_wowlan,
8316 .policy = nl80211_policy,
8317 /* can be retrieved by unprivileged users */
8318 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8319 NL80211_FLAG_NEED_RTNL,
8322 .cmd = NL80211_CMD_SET_WOWLAN,
8323 .doit = nl80211_set_wowlan,
8324 .policy = nl80211_policy,
8325 .flags = GENL_ADMIN_PERM,
8326 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8327 NL80211_FLAG_NEED_RTNL,
8331 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8332 .doit = nl80211_set_rekey_data,
8333 .policy = nl80211_policy,
8334 .flags = GENL_ADMIN_PERM,
8335 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8336 NL80211_FLAG_NEED_RTNL,
8339 .cmd = NL80211_CMD_TDLS_MGMT,
8340 .doit = nl80211_tdls_mgmt,
8341 .policy = nl80211_policy,
8342 .flags = GENL_ADMIN_PERM,
8343 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8344 NL80211_FLAG_NEED_RTNL,
8347 .cmd = NL80211_CMD_TDLS_OPER,
8348 .doit = nl80211_tdls_oper,
8349 .policy = nl80211_policy,
8350 .flags = GENL_ADMIN_PERM,
8351 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8352 NL80211_FLAG_NEED_RTNL,
8355 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8356 .doit = nl80211_register_unexpected_frame,
8357 .policy = nl80211_policy,
8358 .flags = GENL_ADMIN_PERM,
8359 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8360 NL80211_FLAG_NEED_RTNL,
8363 .cmd = NL80211_CMD_PROBE_CLIENT,
8364 .doit = nl80211_probe_client,
8365 .policy = nl80211_policy,
8366 .flags = GENL_ADMIN_PERM,
8367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8368 NL80211_FLAG_NEED_RTNL,
8371 .cmd = NL80211_CMD_REGISTER_BEACONS,
8372 .doit = nl80211_register_beacons,
8373 .policy = nl80211_policy,
8374 .flags = GENL_ADMIN_PERM,
8375 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8376 NL80211_FLAG_NEED_RTNL,
8379 .cmd = NL80211_CMD_SET_NOACK_MAP,
8380 .doit = nl80211_set_noack_map,
8381 .policy = nl80211_policy,
8382 .flags = GENL_ADMIN_PERM,
8383 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8384 NL80211_FLAG_NEED_RTNL,
8387 .cmd = NL80211_CMD_START_P2P_DEVICE,
8388 .doit = nl80211_start_p2p_device,
8389 .policy = nl80211_policy,
8390 .flags = GENL_ADMIN_PERM,
8391 .internal_flags = NL80211_FLAG_NEED_WDEV |
8392 NL80211_FLAG_NEED_RTNL,
8395 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8396 .doit = nl80211_stop_p2p_device,
8397 .policy = nl80211_policy,
8398 .flags = GENL_ADMIN_PERM,
8399 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8400 NL80211_FLAG_NEED_RTNL,
8403 .cmd = NL80211_CMD_SET_MCAST_RATE,
8404 .doit = nl80211_set_mcast_rate,
8405 .policy = nl80211_policy,
8406 .flags = GENL_ADMIN_PERM,
8407 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8408 NL80211_FLAG_NEED_RTNL,
8411 .cmd = NL80211_CMD_SET_MAC_ACL,
8412 .doit = nl80211_set_mac_acl,
8413 .policy = nl80211_policy,
8414 .flags = GENL_ADMIN_PERM,
8415 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8416 NL80211_FLAG_NEED_RTNL,
8419 .cmd = NL80211_CMD_RADAR_DETECT,
8420 .doit = nl80211_start_radar_detection,
8421 .policy = nl80211_policy,
8422 .flags = GENL_ADMIN_PERM,
8423 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8424 NL80211_FLAG_NEED_RTNL,
8428 static struct genl_multicast_group nl80211_mlme_mcgrp = {
8432 /* multicast groups */
8433 static struct genl_multicast_group nl80211_config_mcgrp = {
8436 static struct genl_multicast_group nl80211_scan_mcgrp = {
8439 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8440 .name = "regulatory",
8443 /* notification functions */
8445 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8447 struct sk_buff *msg;
8449 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8453 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8458 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8459 nl80211_config_mcgrp.id, GFP_KERNEL);
8462 static int nl80211_add_scan_req(struct sk_buff *msg,
8463 struct cfg80211_registered_device *rdev)
8465 struct cfg80211_scan_request *req = rdev->scan_req;
8466 struct nlattr *nest;
8469 ASSERT_RDEV_LOCK(rdev);
8474 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8476 goto nla_put_failure;
8477 for (i = 0; i < req->n_ssids; i++) {
8478 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8479 goto nla_put_failure;
8481 nla_nest_end(msg, nest);
8483 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8485 goto nla_put_failure;
8486 for (i = 0; i < req->n_channels; i++) {
8487 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8488 goto nla_put_failure;
8490 nla_nest_end(msg, nest);
8493 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8494 goto nla_put_failure;
8497 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8504 static int nl80211_send_scan_msg(struct sk_buff *msg,
8505 struct cfg80211_registered_device *rdev,
8506 struct wireless_dev *wdev,
8507 u32 portid, u32 seq, int flags,
8512 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8516 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8517 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8518 wdev->netdev->ifindex)) ||
8519 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
8520 goto nla_put_failure;
8522 /* ignore errors and send incomplete event anyway */
8523 nl80211_add_scan_req(msg, rdev);
8525 return genlmsg_end(msg, hdr);
8528 genlmsg_cancel(msg, hdr);
8533 nl80211_send_sched_scan_msg(struct sk_buff *msg,
8534 struct cfg80211_registered_device *rdev,
8535 struct net_device *netdev,
8536 u32 portid, u32 seq, int flags, u32 cmd)
8540 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8544 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8545 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8546 goto nla_put_failure;
8548 return genlmsg_end(msg, hdr);
8551 genlmsg_cancel(msg, hdr);
8555 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
8556 struct wireless_dev *wdev)
8558 struct sk_buff *msg;
8560 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8564 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8565 NL80211_CMD_TRIGGER_SCAN) < 0) {
8570 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8571 nl80211_scan_mcgrp.id, GFP_KERNEL);
8574 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
8575 struct wireless_dev *wdev)
8577 struct sk_buff *msg;
8579 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8583 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8584 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
8589 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8590 nl80211_scan_mcgrp.id, GFP_KERNEL);
8593 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
8594 struct wireless_dev *wdev)
8596 struct sk_buff *msg;
8598 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8602 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8603 NL80211_CMD_SCAN_ABORTED) < 0) {
8608 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8609 nl80211_scan_mcgrp.id, GFP_KERNEL);
8612 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8613 struct net_device *netdev)
8615 struct sk_buff *msg;
8617 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8621 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8622 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8627 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8628 nl80211_scan_mcgrp.id, GFP_KERNEL);
8631 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8632 struct net_device *netdev, u32 cmd)
8634 struct sk_buff *msg;
8636 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8640 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8645 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8646 nl80211_scan_mcgrp.id, GFP_KERNEL);
8650 * This can happen on global regulatory changes or device specific settings
8651 * based on custom world regulatory domains.
8653 void nl80211_send_reg_change_event(struct regulatory_request *request)
8655 struct sk_buff *msg;
8658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8662 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8668 /* Userspace can always count this one always being set */
8669 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8670 goto nla_put_failure;
8672 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8673 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8674 NL80211_REGDOM_TYPE_WORLD))
8675 goto nla_put_failure;
8676 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8677 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8678 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8679 goto nla_put_failure;
8680 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8681 request->intersect) {
8682 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8683 NL80211_REGDOM_TYPE_INTERSECTION))
8684 goto nla_put_failure;
8686 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8687 NL80211_REGDOM_TYPE_COUNTRY) ||
8688 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8690 goto nla_put_failure;
8693 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
8694 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8695 goto nla_put_failure;
8697 genlmsg_end(msg, hdr);
8700 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8707 genlmsg_cancel(msg, hdr);
8711 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8712 struct net_device *netdev,
8713 const u8 *buf, size_t len,
8714 enum nl80211_commands cmd, gfp_t gfp)
8716 struct sk_buff *msg;
8719 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8723 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8729 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8730 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8731 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8732 goto nla_put_failure;
8734 genlmsg_end(msg, hdr);
8736 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8737 nl80211_mlme_mcgrp.id, gfp);
8741 genlmsg_cancel(msg, hdr);
8745 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8746 struct net_device *netdev, const u8 *buf,
8747 size_t len, gfp_t gfp)
8749 nl80211_send_mlme_event(rdev, netdev, buf, len,
8750 NL80211_CMD_AUTHENTICATE, gfp);
8753 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8754 struct net_device *netdev, const u8 *buf,
8755 size_t len, gfp_t gfp)
8757 nl80211_send_mlme_event(rdev, netdev, buf, len,
8758 NL80211_CMD_ASSOCIATE, gfp);
8761 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8762 struct net_device *netdev, const u8 *buf,
8763 size_t len, gfp_t gfp)
8765 nl80211_send_mlme_event(rdev, netdev, buf, len,
8766 NL80211_CMD_DEAUTHENTICATE, gfp);
8769 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8770 struct net_device *netdev, const u8 *buf,
8771 size_t len, gfp_t gfp)
8773 nl80211_send_mlme_event(rdev, netdev, buf, len,
8774 NL80211_CMD_DISASSOCIATE, gfp);
8777 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8778 struct net_device *netdev, const u8 *buf,
8779 size_t len, gfp_t gfp)
8781 nl80211_send_mlme_event(rdev, netdev, buf, len,
8782 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8785 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8786 struct net_device *netdev, const u8 *buf,
8787 size_t len, gfp_t gfp)
8789 nl80211_send_mlme_event(rdev, netdev, buf, len,
8790 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8793 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8794 struct net_device *netdev, int cmd,
8795 const u8 *addr, gfp_t gfp)
8797 struct sk_buff *msg;
8800 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8804 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8810 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8811 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8812 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8813 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8814 goto nla_put_failure;
8816 genlmsg_end(msg, hdr);
8818 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8819 nl80211_mlme_mcgrp.id, gfp);
8823 genlmsg_cancel(msg, hdr);
8827 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8828 struct net_device *netdev, const u8 *addr,
8831 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8835 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8836 struct net_device *netdev, const u8 *addr,
8839 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8843 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8844 struct net_device *netdev, const u8 *bssid,
8845 const u8 *req_ie, size_t req_ie_len,
8846 const u8 *resp_ie, size_t resp_ie_len,
8847 u16 status, gfp_t gfp)
8849 struct sk_buff *msg;
8852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8856 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8862 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8863 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8864 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8865 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8867 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8869 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8870 goto nla_put_failure;
8872 genlmsg_end(msg, hdr);
8874 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8875 nl80211_mlme_mcgrp.id, gfp);
8879 genlmsg_cancel(msg, hdr);
8884 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8885 struct net_device *netdev, const u8 *bssid,
8886 const u8 *req_ie, size_t req_ie_len,
8887 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8889 struct sk_buff *msg;
8892 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8896 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8902 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8903 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8904 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8906 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8908 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8909 goto nla_put_failure;
8911 genlmsg_end(msg, hdr);
8913 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8914 nl80211_mlme_mcgrp.id, gfp);
8918 genlmsg_cancel(msg, hdr);
8923 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8924 struct net_device *netdev, u16 reason,
8925 const u8 *ie, size_t ie_len, bool from_ap)
8927 struct sk_buff *msg;
8930 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8934 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8940 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8941 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8942 (from_ap && reason &&
8943 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8945 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8946 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8947 goto nla_put_failure;
8949 genlmsg_end(msg, hdr);
8951 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8952 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8956 genlmsg_cancel(msg, hdr);
8961 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8962 struct net_device *netdev, const u8 *bssid,
8965 struct sk_buff *msg;
8968 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8972 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
8978 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8979 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8980 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
8981 goto nla_put_failure;
8983 genlmsg_end(msg, hdr);
8985 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8986 nl80211_mlme_mcgrp.id, gfp);
8990 genlmsg_cancel(msg, hdr);
8994 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
8995 struct net_device *netdev,
8996 const u8 *macaddr, const u8* ie, u8 ie_len,
8999 struct sk_buff *msg;
9002 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9006 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9012 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9013 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9014 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
9016 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9017 goto nla_put_failure;
9019 genlmsg_end(msg, hdr);
9021 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9022 nl80211_mlme_mcgrp.id, gfp);
9026 genlmsg_cancel(msg, hdr);
9030 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9031 struct net_device *netdev, const u8 *addr,
9032 enum nl80211_key_type key_type, int key_id,
9033 const u8 *tsc, gfp_t gfp)
9035 struct sk_buff *msg;
9038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9042 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9048 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9049 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9050 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9051 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9053 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9054 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9055 goto nla_put_failure;
9057 genlmsg_end(msg, hdr);
9059 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9060 nl80211_mlme_mcgrp.id, gfp);
9064 genlmsg_cancel(msg, hdr);
9068 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9069 struct ieee80211_channel *channel_before,
9070 struct ieee80211_channel *channel_after)
9072 struct sk_buff *msg;
9074 struct nlattr *nl_freq;
9076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9080 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9087 * Since we are applying the beacon hint to a wiphy we know its
9088 * wiphy_idx is valid
9090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9091 goto nla_put_failure;
9094 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9096 goto nla_put_failure;
9097 if (nl80211_msg_put_channel(msg, channel_before))
9098 goto nla_put_failure;
9099 nla_nest_end(msg, nl_freq);
9102 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9104 goto nla_put_failure;
9105 if (nl80211_msg_put_channel(msg, channel_after))
9106 goto nla_put_failure;
9107 nla_nest_end(msg, nl_freq);
9109 genlmsg_end(msg, hdr);
9112 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9119 genlmsg_cancel(msg, hdr);
9123 static void nl80211_send_remain_on_chan_event(
9124 int cmd, struct cfg80211_registered_device *rdev,
9125 struct wireless_dev *wdev, u64 cookie,
9126 struct ieee80211_channel *chan,
9127 unsigned int duration, gfp_t gfp)
9129 struct sk_buff *msg;
9132 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9136 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9142 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9143 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9144 wdev->netdev->ifindex)) ||
9145 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9146 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9147 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9148 NL80211_CHAN_NO_HT) ||
9149 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9150 goto nla_put_failure;
9152 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9153 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9154 goto nla_put_failure;
9156 genlmsg_end(msg, hdr);
9158 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9159 nl80211_mlme_mcgrp.id, gfp);
9163 genlmsg_cancel(msg, hdr);
9167 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
9168 struct wireless_dev *wdev, u64 cookie,
9169 struct ieee80211_channel *chan,
9170 unsigned int duration, gfp_t gfp)
9172 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9173 rdev, wdev, cookie, chan,
9177 void nl80211_send_remain_on_channel_cancel(
9178 struct cfg80211_registered_device *rdev,
9179 struct wireless_dev *wdev,
9180 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9182 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9183 rdev, wdev, cookie, chan, 0, gfp);
9186 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9187 struct net_device *dev, const u8 *mac_addr,
9188 struct station_info *sinfo, gfp_t gfp)
9190 struct sk_buff *msg;
9192 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9196 if (nl80211_send_station(msg, 0, 0, 0,
9197 rdev, dev, mac_addr, sinfo) < 0) {
9202 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9203 nl80211_mlme_mcgrp.id, gfp);
9206 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9207 struct net_device *dev, const u8 *mac_addr,
9210 struct sk_buff *msg;
9213 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9217 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9223 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9224 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9225 goto nla_put_failure;
9227 genlmsg_end(msg, hdr);
9229 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9230 nl80211_mlme_mcgrp.id, gfp);
9234 genlmsg_cancel(msg, hdr);
9238 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9239 struct net_device *dev, const u8 *mac_addr,
9240 enum nl80211_connect_failed_reason reason,
9243 struct sk_buff *msg;
9246 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9250 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9256 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9257 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9258 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9259 goto nla_put_failure;
9261 genlmsg_end(msg, hdr);
9263 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9264 nl80211_mlme_mcgrp.id, gfp);
9268 genlmsg_cancel(msg, hdr);
9272 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9273 const u8 *addr, gfp_t gfp)
9275 struct wireless_dev *wdev = dev->ieee80211_ptr;
9276 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9277 struct sk_buff *msg;
9280 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9285 msg = nlmsg_new(100, gfp);
9289 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9295 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9296 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9297 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9298 goto nla_put_failure;
9300 err = genlmsg_end(msg, hdr);
9306 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9310 genlmsg_cancel(msg, hdr);
9315 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9317 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9321 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9322 const u8 *addr, gfp_t gfp)
9324 return __nl80211_unexpected_frame(dev,
9325 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9329 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9330 struct wireless_dev *wdev, u32 nlportid,
9331 int freq, int sig_dbm,
9332 const u8 *buf, size_t len, gfp_t gfp)
9334 struct net_device *netdev = wdev->netdev;
9335 struct sk_buff *msg;
9338 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9342 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9349 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9350 netdev->ifindex)) ||
9351 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9353 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9354 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9355 goto nla_put_failure;
9357 genlmsg_end(msg, hdr);
9359 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9362 genlmsg_cancel(msg, hdr);
9367 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
9368 struct wireless_dev *wdev, u64 cookie,
9369 const u8 *buf, size_t len, bool ack,
9372 struct net_device *netdev = wdev->netdev;
9373 struct sk_buff *msg;
9376 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9380 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
9386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9387 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9388 netdev->ifindex)) ||
9389 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9390 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9391 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9392 goto nla_put_failure;
9394 genlmsg_end(msg, hdr);
9396 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9400 genlmsg_cancel(msg, hdr);
9405 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9406 struct net_device *netdev,
9407 enum nl80211_cqm_rssi_threshold_event rssi_event,
9410 struct sk_buff *msg;
9411 struct nlattr *pinfoattr;
9414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9418 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9425 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9426 goto nla_put_failure;
9428 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9430 goto nla_put_failure;
9432 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9434 goto nla_put_failure;
9436 nla_nest_end(msg, pinfoattr);
9438 genlmsg_end(msg, hdr);
9440 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9441 nl80211_mlme_mcgrp.id, gfp);
9445 genlmsg_cancel(msg, hdr);
9449 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9450 struct net_device *netdev, const u8 *bssid,
9451 const u8 *replay_ctr, gfp_t gfp)
9453 struct sk_buff *msg;
9454 struct nlattr *rekey_attr;
9457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9461 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9467 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9468 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9469 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9470 goto nla_put_failure;
9472 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9474 goto nla_put_failure;
9476 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9477 NL80211_REPLAY_CTR_LEN, replay_ctr))
9478 goto nla_put_failure;
9480 nla_nest_end(msg, rekey_attr);
9482 genlmsg_end(msg, hdr);
9484 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9485 nl80211_mlme_mcgrp.id, gfp);
9489 genlmsg_cancel(msg, hdr);
9493 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9494 struct net_device *netdev, int index,
9495 const u8 *bssid, bool preauth, gfp_t gfp)
9497 struct sk_buff *msg;
9498 struct nlattr *attr;
9501 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9505 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9511 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9512 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9513 goto nla_put_failure;
9515 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9517 goto nla_put_failure;
9519 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9520 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9522 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9523 goto nla_put_failure;
9525 nla_nest_end(msg, attr);
9527 genlmsg_end(msg, hdr);
9529 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9530 nl80211_mlme_mcgrp.id, gfp);
9534 genlmsg_cancel(msg, hdr);
9538 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
9539 struct net_device *netdev,
9540 struct cfg80211_chan_def *chandef, gfp_t gfp)
9542 struct sk_buff *msg;
9545 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9549 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9555 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9556 goto nla_put_failure;
9558 if (nl80211_send_chandef(msg, chandef))
9559 goto nla_put_failure;
9561 genlmsg_end(msg, hdr);
9563 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9564 nl80211_mlme_mcgrp.id, gfp);
9568 genlmsg_cancel(msg, hdr);
9573 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9574 struct net_device *netdev, const u8 *peer,
9575 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9577 struct sk_buff *msg;
9578 struct nlattr *pinfoattr;
9581 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9585 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9591 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9592 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9593 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9594 goto nla_put_failure;
9596 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9598 goto nla_put_failure;
9600 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9601 goto nla_put_failure;
9603 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9604 goto nla_put_failure;
9606 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9607 goto nla_put_failure;
9609 nla_nest_end(msg, pinfoattr);
9611 genlmsg_end(msg, hdr);
9613 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9614 nl80211_mlme_mcgrp.id, gfp);
9618 genlmsg_cancel(msg, hdr);
9623 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9624 struct cfg80211_chan_def *chandef,
9625 enum nl80211_radar_event event,
9626 struct net_device *netdev, gfp_t gfp)
9628 struct sk_buff *msg;
9631 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9635 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9641 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9642 goto nla_put_failure;
9644 /* NOP and radar events don't need a netdev parameter */
9646 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9648 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9649 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9650 goto nla_put_failure;
9653 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9654 goto nla_put_failure;
9656 if (nl80211_send_chandef(msg, chandef))
9657 goto nla_put_failure;
9659 if (genlmsg_end(msg, hdr) < 0) {
9664 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9665 nl80211_mlme_mcgrp.id, gfp);
9669 genlmsg_cancel(msg, hdr);
9674 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9675 struct net_device *netdev, const u8 *peer,
9676 u32 num_packets, gfp_t gfp)
9678 struct sk_buff *msg;
9679 struct nlattr *pinfoattr;
9682 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9686 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9692 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9693 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9694 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9695 goto nla_put_failure;
9697 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9699 goto nla_put_failure;
9701 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9702 goto nla_put_failure;
9704 nla_nest_end(msg, pinfoattr);
9706 genlmsg_end(msg, hdr);
9708 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9709 nl80211_mlme_mcgrp.id, gfp);
9713 genlmsg_cancel(msg, hdr);
9717 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9718 u64 cookie, bool acked, gfp_t gfp)
9720 struct wireless_dev *wdev = dev->ieee80211_ptr;
9721 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9722 struct sk_buff *msg;
9726 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9728 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9733 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9739 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9740 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9741 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9742 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9743 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9744 goto nla_put_failure;
9746 err = genlmsg_end(msg, hdr);
9752 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9753 nl80211_mlme_mcgrp.id, gfp);
9757 genlmsg_cancel(msg, hdr);
9760 EXPORT_SYMBOL(cfg80211_probe_status);
9762 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9763 const u8 *frame, size_t len,
9764 int freq, int sig_dbm)
9766 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9767 struct sk_buff *msg;
9769 struct cfg80211_beacon_registration *reg;
9771 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9773 spin_lock_bh(&rdev->beacon_registrations_lock);
9774 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9775 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9777 spin_unlock_bh(&rdev->beacon_registrations_lock);
9781 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9783 goto nla_put_failure;
9785 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9787 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9789 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9790 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9791 goto nla_put_failure;
9793 genlmsg_end(msg, hdr);
9795 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9797 spin_unlock_bh(&rdev->beacon_registrations_lock);
9801 spin_unlock_bh(&rdev->beacon_registrations_lock);
9803 genlmsg_cancel(msg, hdr);
9806 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9809 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9810 struct cfg80211_wowlan_wakeup *wakeup,
9813 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9814 struct sk_buff *msg;
9816 int err, size = 200;
9818 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9821 size += wakeup->packet_present_len;
9823 msg = nlmsg_new(size, gfp);
9827 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9831 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9832 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9835 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9836 wdev->netdev->ifindex))
9840 struct nlattr *reasons;
9842 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9844 if (wakeup->disconnect &&
9845 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9847 if (wakeup->magic_pkt &&
9848 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9850 if (wakeup->gtk_rekey_failure &&
9851 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9853 if (wakeup->eap_identity_req &&
9854 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9856 if (wakeup->four_way_handshake &&
9857 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9859 if (wakeup->rfkill_release &&
9860 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9863 if (wakeup->pattern_idx >= 0 &&
9864 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9865 wakeup->pattern_idx))
9868 if (wakeup->tcp_match)
9869 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9871 if (wakeup->tcp_connlost)
9873 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9875 if (wakeup->tcp_nomoretokens)
9877 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9879 if (wakeup->packet) {
9880 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9881 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9883 if (!wakeup->packet_80211) {
9885 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9887 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9890 if (wakeup->packet_len &&
9891 nla_put_u32(msg, len_attr, wakeup->packet_len))
9894 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9899 nla_nest_end(msg, reasons);
9902 err = genlmsg_end(msg, hdr);
9906 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9907 nl80211_mlme_mcgrp.id, gfp);
9913 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9916 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9917 enum nl80211_tdls_operation oper,
9918 u16 reason_code, gfp_t gfp)
9920 struct wireless_dev *wdev = dev->ieee80211_ptr;
9921 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9922 struct sk_buff *msg;
9926 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9933 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9939 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9940 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9941 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9942 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9944 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9945 goto nla_put_failure;
9947 err = genlmsg_end(msg, hdr);
9953 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9954 nl80211_mlme_mcgrp.id, gfp);
9958 genlmsg_cancel(msg, hdr);
9961 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9963 static int nl80211_netlink_notify(struct notifier_block * nb,
9964 unsigned long state,
9967 struct netlink_notify *notify = _notify;
9968 struct cfg80211_registered_device *rdev;
9969 struct wireless_dev *wdev;
9970 struct cfg80211_beacon_registration *reg, *tmp;
9972 if (state != NETLINK_URELEASE)
9977 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
9978 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
9979 cfg80211_mlme_unregister_socket(wdev, notify->portid);
9981 spin_lock_bh(&rdev->beacon_registrations_lock);
9982 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
9984 if (reg->nlportid == notify->portid) {
9985 list_del(®->list);
9990 spin_unlock_bh(&rdev->beacon_registrations_lock);
9998 static struct notifier_block nl80211_netlink_notifier = {
9999 .notifier_call = nl80211_netlink_notify,
10002 /* initialisation/exit functions */
10004 int nl80211_init(void)
10008 err = genl_register_family_with_ops(&nl80211_fam,
10009 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10013 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10017 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10021 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10025 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10029 #ifdef CONFIG_NL80211_TESTMODE
10030 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10035 err = netlink_register_notifier(&nl80211_netlink_notifier);
10041 genl_unregister_family(&nl80211_fam);
10045 void nl80211_exit(void)
10047 netlink_unregister_notifier(&nl80211_netlink_notifier);
10048 genl_unregister_family(&nl80211_fam);