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 ret = nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1321 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1325 * If sending the wiphy data didn't fit (ENOBUFS or
1326 * EMSGSIZE returned), this SKB is still empty (so
1327 * it's not too big because another wiphy dataset is
1328 * already in the skb) and we've not tried to adjust
1329 * the dump allocation yet ... then adjust the alloc
1330 * size to be bigger, and return 1 but with the empty
1331 * skb. This results in an empty message being RX'ed
1332 * in userspace, but that is ignored.
1334 * We can then retry with the larger buffer.
1336 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1338 cb->min_dump_alloc < 4096) {
1339 cb->min_dump_alloc = 4096;
1340 mutex_unlock(&cfg80211_mutex);
1347 mutex_unlock(&cfg80211_mutex);
1354 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1356 struct sk_buff *msg;
1357 struct cfg80211_registered_device *dev = info->user_ptr[0];
1359 msg = nlmsg_new(4096, GFP_KERNEL);
1363 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1368 return genlmsg_reply(msg, info);
1371 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1372 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1373 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1374 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1375 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1376 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1379 static int parse_txq_params(struct nlattr *tb[],
1380 struct ieee80211_txq_params *txq_params)
1382 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1383 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1384 !tb[NL80211_TXQ_ATTR_AIFS])
1387 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1388 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1389 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1390 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1391 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1393 if (txq_params->ac >= NL80211_NUM_ACS)
1399 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1402 * You can only set the channel explicitly for WDS interfaces,
1403 * all others have their channel managed via their respective
1404 * "establish a connection" command (connect, join, ...)
1406 * For AP/GO and mesh mode, the channel can be set with the
1407 * channel userspace API, but is only stored and passed to the
1408 * low-level driver when the AP starts or the mesh is joined.
1409 * This is for backward compatibility, userspace can also give
1410 * the channel in the start-ap or join-mesh commands instead.
1412 * Monitors are special as they are normally slaved to
1413 * whatever else is going on, so they have their own special
1414 * operation to set the monitor channel if possible.
1417 wdev->iftype == NL80211_IFTYPE_AP ||
1418 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1419 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1420 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1423 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1424 struct genl_info *info,
1425 struct cfg80211_chan_def *chandef)
1429 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1432 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1434 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1435 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1436 chandef->center_freq1 = control_freq;
1437 chandef->center_freq2 = 0;
1439 /* Primary channel not allowed */
1440 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1443 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1444 enum nl80211_channel_type chantype;
1446 chantype = nla_get_u32(
1447 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1450 case NL80211_CHAN_NO_HT:
1451 case NL80211_CHAN_HT20:
1452 case NL80211_CHAN_HT40PLUS:
1453 case NL80211_CHAN_HT40MINUS:
1454 cfg80211_chandef_create(chandef, chandef->chan,
1460 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1462 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1463 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1464 chandef->center_freq1 =
1466 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1467 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1468 chandef->center_freq2 =
1470 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1473 if (!cfg80211_chandef_valid(chandef))
1476 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1477 IEEE80211_CHAN_DISABLED))
1483 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1484 struct wireless_dev *wdev,
1485 struct genl_info *info)
1487 struct cfg80211_chan_def chandef;
1489 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1492 iftype = wdev->iftype;
1494 if (!nl80211_can_set_dev_channel(wdev))
1497 result = nl80211_parse_chandef(rdev, info, &chandef);
1501 mutex_lock(&rdev->devlist_mtx);
1503 case NL80211_IFTYPE_AP:
1504 case NL80211_IFTYPE_P2P_GO:
1505 if (wdev->beacon_interval) {
1509 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1513 wdev->preset_chandef = chandef;
1516 case NL80211_IFTYPE_MESH_POINT:
1517 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1519 case NL80211_IFTYPE_MONITOR:
1520 result = cfg80211_set_monitor_channel(rdev, &chandef);
1525 mutex_unlock(&rdev->devlist_mtx);
1530 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1533 struct net_device *netdev = info->user_ptr[1];
1535 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1538 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1540 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1541 struct net_device *dev = info->user_ptr[1];
1542 struct wireless_dev *wdev = dev->ieee80211_ptr;
1545 if (!info->attrs[NL80211_ATTR_MAC])
1548 if (netif_running(dev))
1551 if (!rdev->ops->set_wds_peer)
1554 if (wdev->iftype != NL80211_IFTYPE_WDS)
1557 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1558 return rdev_set_wds_peer(rdev, dev, bssid);
1562 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1564 struct cfg80211_registered_device *rdev;
1565 struct net_device *netdev = NULL;
1566 struct wireless_dev *wdev;
1567 int result = 0, rem_txq_params = 0;
1568 struct nlattr *nl_txq_params;
1570 u8 retry_short = 0, retry_long = 0;
1571 u32 frag_threshold = 0, rts_threshold = 0;
1572 u8 coverage_class = 0;
1575 * Try to find the wiphy and netdev. Normally this
1576 * function shouldn't need the netdev, but this is
1577 * done for backward compatibility -- previously
1578 * setting the channel was done per wiphy, but now
1579 * it is per netdev. Previous userland like hostapd
1580 * also passed a netdev to set_wiphy, so that it is
1581 * possible to let that go to the right netdev!
1583 mutex_lock(&cfg80211_mutex);
1585 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1586 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1588 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1589 if (netdev && netdev->ieee80211_ptr) {
1590 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1591 mutex_lock(&rdev->mtx);
1597 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1600 mutex_unlock(&cfg80211_mutex);
1601 return PTR_ERR(rdev);
1607 mutex_lock(&rdev->mtx);
1609 wdev = netdev->ieee80211_ptr;
1612 * end workaround code, by now the rdev is available
1613 * and locked, and wdev may or may not be NULL.
1616 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1617 result = cfg80211_dev_rename(
1618 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1620 mutex_unlock(&cfg80211_mutex);
1625 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1626 struct ieee80211_txq_params txq_params;
1627 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1629 if (!rdev->ops->set_txq_params) {
1630 result = -EOPNOTSUPP;
1639 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1640 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1645 if (!netif_running(netdev)) {
1650 nla_for_each_nested(nl_txq_params,
1651 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1653 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1654 nla_data(nl_txq_params),
1655 nla_len(nl_txq_params),
1657 result = parse_txq_params(tb, &txq_params);
1661 result = rdev_set_txq_params(rdev, netdev,
1668 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1669 result = __nl80211_set_channel(rdev,
1670 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1676 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1677 struct wireless_dev *txp_wdev = wdev;
1678 enum nl80211_tx_power_setting type;
1681 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1684 if (!rdev->ops->set_tx_power) {
1685 result = -EOPNOTSUPP;
1689 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1690 type = nla_get_u32(info->attrs[idx]);
1692 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1693 (type != NL80211_TX_POWER_AUTOMATIC)) {
1698 if (type != NL80211_TX_POWER_AUTOMATIC) {
1699 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1700 mbm = nla_get_u32(info->attrs[idx]);
1703 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1708 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1709 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1711 if ((!rdev->wiphy.available_antennas_tx &&
1712 !rdev->wiphy.available_antennas_rx) ||
1713 !rdev->ops->set_antenna) {
1714 result = -EOPNOTSUPP;
1718 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1719 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1721 /* reject antenna configurations which don't match the
1722 * available antenna masks, except for the "all" mask */
1723 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1724 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1729 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1730 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1732 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1739 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1740 retry_short = nla_get_u8(
1741 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1742 if (retry_short == 0) {
1746 changed |= WIPHY_PARAM_RETRY_SHORT;
1749 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1750 retry_long = nla_get_u8(
1751 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1752 if (retry_long == 0) {
1756 changed |= WIPHY_PARAM_RETRY_LONG;
1759 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1760 frag_threshold = nla_get_u32(
1761 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1762 if (frag_threshold < 256) {
1766 if (frag_threshold != (u32) -1) {
1768 * Fragments (apart from the last one) are required to
1769 * have even length. Make the fragmentation code
1770 * simpler by stripping LSB should someone try to use
1771 * odd threshold value.
1773 frag_threshold &= ~0x1;
1775 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1778 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1779 rts_threshold = nla_get_u32(
1780 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1781 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1784 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1785 coverage_class = nla_get_u8(
1786 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1787 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1791 u8 old_retry_short, old_retry_long;
1792 u32 old_frag_threshold, old_rts_threshold;
1793 u8 old_coverage_class;
1795 if (!rdev->ops->set_wiphy_params) {
1796 result = -EOPNOTSUPP;
1800 old_retry_short = rdev->wiphy.retry_short;
1801 old_retry_long = rdev->wiphy.retry_long;
1802 old_frag_threshold = rdev->wiphy.frag_threshold;
1803 old_rts_threshold = rdev->wiphy.rts_threshold;
1804 old_coverage_class = rdev->wiphy.coverage_class;
1806 if (changed & WIPHY_PARAM_RETRY_SHORT)
1807 rdev->wiphy.retry_short = retry_short;
1808 if (changed & WIPHY_PARAM_RETRY_LONG)
1809 rdev->wiphy.retry_long = retry_long;
1810 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1811 rdev->wiphy.frag_threshold = frag_threshold;
1812 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1813 rdev->wiphy.rts_threshold = rts_threshold;
1814 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1815 rdev->wiphy.coverage_class = coverage_class;
1817 result = rdev_set_wiphy_params(rdev, changed);
1819 rdev->wiphy.retry_short = old_retry_short;
1820 rdev->wiphy.retry_long = old_retry_long;
1821 rdev->wiphy.frag_threshold = old_frag_threshold;
1822 rdev->wiphy.rts_threshold = old_rts_threshold;
1823 rdev->wiphy.coverage_class = old_coverage_class;
1828 mutex_unlock(&rdev->mtx);
1834 static inline u64 wdev_id(struct wireless_dev *wdev)
1836 return (u64)wdev->identifier |
1837 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1840 static int nl80211_send_chandef(struct sk_buff *msg,
1841 struct cfg80211_chan_def *chandef)
1843 WARN_ON(!cfg80211_chandef_valid(chandef));
1845 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1846 chandef->chan->center_freq))
1848 switch (chandef->width) {
1849 case NL80211_CHAN_WIDTH_20_NOHT:
1850 case NL80211_CHAN_WIDTH_20:
1851 case NL80211_CHAN_WIDTH_40:
1852 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1853 cfg80211_get_chandef_type(chandef)))
1859 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1861 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1863 if (chandef->center_freq2 &&
1864 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
1869 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1870 struct cfg80211_registered_device *rdev,
1871 struct wireless_dev *wdev)
1873 struct net_device *dev = wdev->netdev;
1876 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1881 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1882 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1883 goto nla_put_failure;
1885 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1886 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1887 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1888 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1889 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1890 rdev->devlist_generation ^
1891 (cfg80211_rdev_list_generation << 2)))
1892 goto nla_put_failure;
1894 if (rdev->ops->get_channel) {
1896 struct cfg80211_chan_def chandef;
1898 ret = rdev_get_channel(rdev, wdev, &chandef);
1900 if (nl80211_send_chandef(msg, &chandef))
1901 goto nla_put_failure;
1905 if (wdev->ssid_len) {
1906 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1907 goto nla_put_failure;
1910 return genlmsg_end(msg, hdr);
1913 genlmsg_cancel(msg, hdr);
1917 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1921 int wp_start = cb->args[0];
1922 int if_start = cb->args[1];
1923 struct cfg80211_registered_device *rdev;
1924 struct wireless_dev *wdev;
1926 mutex_lock(&cfg80211_mutex);
1927 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1928 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1930 if (wp_idx < wp_start) {
1936 mutex_lock(&rdev->devlist_mtx);
1937 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1938 if (if_idx < if_start) {
1942 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1943 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1945 mutex_unlock(&rdev->devlist_mtx);
1950 mutex_unlock(&rdev->devlist_mtx);
1955 mutex_unlock(&cfg80211_mutex);
1957 cb->args[0] = wp_idx;
1958 cb->args[1] = if_idx;
1963 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
1965 struct sk_buff *msg;
1966 struct cfg80211_registered_device *dev = info->user_ptr[0];
1967 struct wireless_dev *wdev = info->user_ptr[1];
1969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1973 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
1979 return genlmsg_reply(msg, info);
1982 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
1983 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
1984 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
1985 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
1986 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
1987 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
1990 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
1992 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2000 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2001 nla, mntr_flags_policy))
2004 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2006 *mntrflags |= (1<<flag);
2011 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2012 struct net_device *netdev, u8 use_4addr,
2013 enum nl80211_iftype iftype)
2016 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2022 case NL80211_IFTYPE_AP_VLAN:
2023 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2026 case NL80211_IFTYPE_STATION:
2027 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2037 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2040 struct vif_params params;
2042 enum nl80211_iftype otype, ntype;
2043 struct net_device *dev = info->user_ptr[1];
2044 u32 _flags, *flags = NULL;
2045 bool change = false;
2047 memset(¶ms, 0, sizeof(params));
2049 otype = ntype = dev->ieee80211_ptr->iftype;
2051 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2052 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2055 if (ntype > NL80211_IFTYPE_MAX)
2059 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2060 struct wireless_dev *wdev = dev->ieee80211_ptr;
2062 if (ntype != NL80211_IFTYPE_MESH_POINT)
2064 if (netif_running(dev))
2068 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2069 IEEE80211_MAX_MESH_ID_LEN);
2070 wdev->mesh_id_up_len =
2071 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2072 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2073 wdev->mesh_id_up_len);
2077 if (info->attrs[NL80211_ATTR_4ADDR]) {
2078 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2080 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2084 params.use_4addr = -1;
2087 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2088 if (ntype != NL80211_IFTYPE_MONITOR)
2090 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2100 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2104 if (!err && params.use_4addr != -1)
2105 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2110 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2112 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2113 struct vif_params params;
2114 struct wireless_dev *wdev;
2115 struct sk_buff *msg;
2117 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2120 memset(¶ms, 0, sizeof(params));
2122 if (!info->attrs[NL80211_ATTR_IFNAME])
2125 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2126 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2127 if (type > NL80211_IFTYPE_MAX)
2131 if (!rdev->ops->add_virtual_intf ||
2132 !(rdev->wiphy.interface_modes & (1 << type)))
2135 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2136 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2138 if (!is_valid_ether_addr(params.macaddr))
2139 return -EADDRNOTAVAIL;
2142 if (info->attrs[NL80211_ATTR_4ADDR]) {
2143 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2144 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2153 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2154 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2156 wdev = rdev_add_virtual_intf(rdev,
2157 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2158 type, err ? NULL : &flags, ¶ms);
2161 return PTR_ERR(wdev);
2165 case NL80211_IFTYPE_MESH_POINT:
2166 if (!info->attrs[NL80211_ATTR_MESH_ID])
2169 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2170 IEEE80211_MAX_MESH_ID_LEN);
2171 wdev->mesh_id_up_len =
2172 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2173 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2174 wdev->mesh_id_up_len);
2177 case NL80211_IFTYPE_P2P_DEVICE:
2179 * P2P Device doesn't have a netdev, so doesn't go
2180 * through the netdev notifier and must be added here
2182 mutex_init(&wdev->mtx);
2183 INIT_LIST_HEAD(&wdev->event_list);
2184 spin_lock_init(&wdev->event_lock);
2185 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2186 spin_lock_init(&wdev->mgmt_registrations_lock);
2188 mutex_lock(&rdev->devlist_mtx);
2189 wdev->identifier = ++rdev->wdev_id;
2190 list_add_rcu(&wdev->list, &rdev->wdev_list);
2191 rdev->devlist_generation++;
2192 mutex_unlock(&rdev->devlist_mtx);
2198 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2204 return genlmsg_reply(msg, info);
2207 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2210 struct wireless_dev *wdev = info->user_ptr[1];
2212 if (!rdev->ops->del_virtual_intf)
2216 * If we remove a wireless device without a netdev then clear
2217 * user_ptr[1] so that nl80211_post_doit won't dereference it
2218 * to check if it needs to do dev_put(). Otherwise it crashes
2219 * since the wdev has been freed, unlike with a netdev where
2220 * we need the dev_put() for the netdev to really be freed.
2223 info->user_ptr[1] = NULL;
2225 return rdev_del_virtual_intf(rdev, wdev);
2228 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2231 struct net_device *dev = info->user_ptr[1];
2234 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2237 if (!rdev->ops->set_noack_map)
2240 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2242 return rdev_set_noack_map(rdev, dev, noack_map);
2245 struct get_key_cookie {
2246 struct sk_buff *msg;
2251 static void get_key_callback(void *c, struct key_params *params)
2254 struct get_key_cookie *cookie = c;
2257 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2258 params->key_len, params->key)) ||
2260 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2261 params->seq_len, params->seq)) ||
2263 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2265 goto nla_put_failure;
2267 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2269 goto nla_put_failure;
2272 nla_put(cookie->msg, NL80211_KEY_DATA,
2273 params->key_len, params->key)) ||
2275 nla_put(cookie->msg, NL80211_KEY_SEQ,
2276 params->seq_len, params->seq)) ||
2278 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2280 goto nla_put_failure;
2282 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2283 goto nla_put_failure;
2285 nla_nest_end(cookie->msg, key);
2292 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2296 struct net_device *dev = info->user_ptr[1];
2298 const u8 *mac_addr = NULL;
2300 struct get_key_cookie cookie = {
2304 struct sk_buff *msg;
2306 if (info->attrs[NL80211_ATTR_KEY_IDX])
2307 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2312 if (info->attrs[NL80211_ATTR_MAC])
2313 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2315 pairwise = !!mac_addr;
2316 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2317 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2318 if (kt >= NUM_NL80211_KEYTYPES)
2320 if (kt != NL80211_KEYTYPE_GROUP &&
2321 kt != NL80211_KEYTYPE_PAIRWISE)
2323 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2326 if (!rdev->ops->get_key)
2329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2333 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2334 NL80211_CMD_NEW_KEY);
2336 return PTR_ERR(hdr);
2339 cookie.idx = key_idx;
2341 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2342 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2343 goto nla_put_failure;
2345 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2346 goto nla_put_failure;
2348 if (pairwise && mac_addr &&
2349 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2352 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2359 goto nla_put_failure;
2361 genlmsg_end(msg, hdr);
2362 return genlmsg_reply(msg, info);
2371 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2374 struct key_parse key;
2376 struct net_device *dev = info->user_ptr[1];
2378 err = nl80211_parse_key(info, &key);
2385 /* only support setting default key */
2386 if (!key.def && !key.defmgmt)
2389 wdev_lock(dev->ieee80211_ptr);
2392 if (!rdev->ops->set_default_key) {
2397 err = nl80211_key_allowed(dev->ieee80211_ptr);
2401 err = rdev_set_default_key(rdev, dev, key.idx,
2402 key.def_uni, key.def_multi);
2407 #ifdef CONFIG_CFG80211_WEXT
2408 dev->ieee80211_ptr->wext.default_key = key.idx;
2411 if (key.def_uni || !key.def_multi) {
2416 if (!rdev->ops->set_default_mgmt_key) {
2421 err = nl80211_key_allowed(dev->ieee80211_ptr);
2425 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2429 #ifdef CONFIG_CFG80211_WEXT
2430 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2435 wdev_unlock(dev->ieee80211_ptr);
2440 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2442 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2444 struct net_device *dev = info->user_ptr[1];
2445 struct key_parse key;
2446 const u8 *mac_addr = NULL;
2448 err = nl80211_parse_key(info, &key);
2455 if (info->attrs[NL80211_ATTR_MAC])
2456 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2458 if (key.type == -1) {
2460 key.type = NL80211_KEYTYPE_PAIRWISE;
2462 key.type = NL80211_KEYTYPE_GROUP;
2466 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2467 key.type != NL80211_KEYTYPE_GROUP)
2470 if (!rdev->ops->add_key)
2473 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2474 key.type == NL80211_KEYTYPE_PAIRWISE,
2478 wdev_lock(dev->ieee80211_ptr);
2479 err = nl80211_key_allowed(dev->ieee80211_ptr);
2481 err = rdev_add_key(rdev, dev, key.idx,
2482 key.type == NL80211_KEYTYPE_PAIRWISE,
2484 wdev_unlock(dev->ieee80211_ptr);
2489 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2493 struct net_device *dev = info->user_ptr[1];
2494 u8 *mac_addr = NULL;
2495 struct key_parse key;
2497 err = nl80211_parse_key(info, &key);
2501 if (info->attrs[NL80211_ATTR_MAC])
2502 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2504 if (key.type == -1) {
2506 key.type = NL80211_KEYTYPE_PAIRWISE;
2508 key.type = NL80211_KEYTYPE_GROUP;
2512 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2513 key.type != NL80211_KEYTYPE_GROUP)
2516 if (!rdev->ops->del_key)
2519 wdev_lock(dev->ieee80211_ptr);
2520 err = nl80211_key_allowed(dev->ieee80211_ptr);
2522 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2523 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2527 err = rdev_del_key(rdev, dev, key.idx,
2528 key.type == NL80211_KEYTYPE_PAIRWISE,
2531 #ifdef CONFIG_CFG80211_WEXT
2533 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2534 dev->ieee80211_ptr->wext.default_key = -1;
2535 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2536 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2539 wdev_unlock(dev->ieee80211_ptr);
2544 /* This function returns an error or the number of nested attributes */
2545 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2547 struct nlattr *attr;
2548 int n_entries = 0, tmp;
2550 nla_for_each_nested(attr, nl_attr, tmp) {
2551 if (nla_len(attr) != ETH_ALEN)
2561 * This function parses ACL information and allocates memory for ACL data.
2562 * On successful return, the calling function is responsible to free the
2563 * ACL buffer returned by this function.
2565 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2566 struct genl_info *info)
2568 enum nl80211_acl_policy acl_policy;
2569 struct nlattr *attr;
2570 struct cfg80211_acl_data *acl;
2571 int i = 0, n_entries, tmp;
2573 if (!wiphy->max_acl_mac_addrs)
2574 return ERR_PTR(-EOPNOTSUPP);
2576 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2577 return ERR_PTR(-EINVAL);
2579 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2580 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2581 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2582 return ERR_PTR(-EINVAL);
2584 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2585 return ERR_PTR(-EINVAL);
2587 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2589 return ERR_PTR(n_entries);
2591 if (n_entries > wiphy->max_acl_mac_addrs)
2592 return ERR_PTR(-ENOTSUPP);
2594 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2597 return ERR_PTR(-ENOMEM);
2599 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2600 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2604 acl->n_acl_entries = n_entries;
2605 acl->acl_policy = acl_policy;
2610 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2612 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2613 struct net_device *dev = info->user_ptr[1];
2614 struct cfg80211_acl_data *acl;
2617 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2618 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2621 if (!dev->ieee80211_ptr->beacon_interval)
2624 acl = parse_acl_data(&rdev->wiphy, info);
2626 return PTR_ERR(acl);
2628 err = rdev_set_mac_acl(rdev, dev, acl);
2635 static int nl80211_parse_beacon(struct genl_info *info,
2636 struct cfg80211_beacon_data *bcn)
2638 bool haveinfo = false;
2640 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2641 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2642 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2643 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2646 memset(bcn, 0, sizeof(*bcn));
2648 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2649 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2650 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2656 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2657 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2659 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2666 if (info->attrs[NL80211_ATTR_IE]) {
2667 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2668 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2671 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2672 bcn->proberesp_ies =
2673 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2674 bcn->proberesp_ies_len =
2675 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2678 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2679 bcn->assocresp_ies =
2680 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2681 bcn->assocresp_ies_len =
2682 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2685 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2687 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2688 bcn->probe_resp_len =
2689 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2695 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2696 struct cfg80211_ap_settings *params)
2698 struct wireless_dev *wdev;
2701 mutex_lock(&rdev->devlist_mtx);
2703 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2704 if (wdev->iftype != NL80211_IFTYPE_AP &&
2705 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2708 if (!wdev->preset_chandef.chan)
2711 params->chandef = wdev->preset_chandef;
2716 mutex_unlock(&rdev->devlist_mtx);
2721 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2722 enum nl80211_auth_type auth_type,
2723 enum nl80211_commands cmd)
2725 if (auth_type > NL80211_AUTHTYPE_MAX)
2729 case NL80211_CMD_AUTHENTICATE:
2730 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2731 auth_type == NL80211_AUTHTYPE_SAE)
2734 case NL80211_CMD_CONNECT:
2735 case NL80211_CMD_START_AP:
2736 /* SAE not supported yet */
2737 if (auth_type == NL80211_AUTHTYPE_SAE)
2745 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2747 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2748 struct net_device *dev = info->user_ptr[1];
2749 struct wireless_dev *wdev = dev->ieee80211_ptr;
2750 struct cfg80211_ap_settings params;
2752 u8 radar_detect_width = 0;
2754 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2755 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2758 if (!rdev->ops->start_ap)
2761 if (wdev->beacon_interval)
2764 memset(¶ms, 0, sizeof(params));
2766 /* these are required for START_AP */
2767 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2768 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2769 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2772 err = nl80211_parse_beacon(info, ¶ms.beacon);
2776 params.beacon_interval =
2777 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2778 params.dtim_period =
2779 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2781 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2786 * In theory, some of these attributes should be required here
2787 * but since they were not used when the command was originally
2788 * added, keep them optional for old user space programs to let
2789 * them continue to work with drivers that do not need the
2790 * additional information -- drivers must check!
2792 if (info->attrs[NL80211_ATTR_SSID]) {
2793 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2795 nla_len(info->attrs[NL80211_ATTR_SSID]);
2796 if (params.ssid_len == 0 ||
2797 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2801 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2802 params.hidden_ssid = nla_get_u32(
2803 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2804 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2805 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2806 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2810 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2812 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2813 params.auth_type = nla_get_u32(
2814 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2815 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2816 NL80211_CMD_START_AP))
2819 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2821 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2822 NL80211_MAX_NR_CIPHER_SUITES);
2826 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2827 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2829 params.inactivity_timeout = nla_get_u16(
2830 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2833 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2834 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2836 params.p2p_ctwindow =
2837 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2838 if (params.p2p_ctwindow > 127)
2840 if (params.p2p_ctwindow != 0 &&
2841 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2845 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2848 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2850 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2853 params.p2p_opp_ps = tmp;
2854 if (params.p2p_opp_ps != 0 &&
2855 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2859 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2860 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
2863 } else if (wdev->preset_chandef.chan) {
2864 params.chandef = wdev->preset_chandef;
2865 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2868 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
2871 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
2875 radar_detect_width = BIT(params.chandef.width);
2876 params.radar_required = true;
2879 mutex_lock(&rdev->devlist_mtx);
2880 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
2881 params.chandef.chan,
2883 radar_detect_width);
2884 mutex_unlock(&rdev->devlist_mtx);
2889 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2890 params.acl = parse_acl_data(&rdev->wiphy, info);
2891 if (IS_ERR(params.acl))
2892 return PTR_ERR(params.acl);
2895 err = rdev_start_ap(rdev, dev, ¶ms);
2897 wdev->preset_chandef = params.chandef;
2898 wdev->beacon_interval = params.beacon_interval;
2899 wdev->channel = params.chandef.chan;
2900 wdev->ssid_len = params.ssid_len;
2901 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2909 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2912 struct net_device *dev = info->user_ptr[1];
2913 struct wireless_dev *wdev = dev->ieee80211_ptr;
2914 struct cfg80211_beacon_data params;
2917 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2918 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2921 if (!rdev->ops->change_beacon)
2924 if (!wdev->beacon_interval)
2927 err = nl80211_parse_beacon(info, ¶ms);
2931 return rdev_change_beacon(rdev, dev, ¶ms);
2934 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2936 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2937 struct net_device *dev = info->user_ptr[1];
2939 return cfg80211_stop_ap(rdev, dev);
2942 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2943 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2944 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2945 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2946 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2947 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2948 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2951 static int parse_station_flags(struct genl_info *info,
2952 enum nl80211_iftype iftype,
2953 struct station_parameters *params)
2955 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
2960 * Try parsing the new attribute first so userspace
2961 * can specify both for older kernels.
2963 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
2965 struct nl80211_sta_flag_update *sta_flags;
2967 sta_flags = nla_data(nla);
2968 params->sta_flags_mask = sta_flags->mask;
2969 params->sta_flags_set = sta_flags->set;
2970 if ((params->sta_flags_mask |
2971 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
2976 /* if present, parse the old attribute */
2978 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
2982 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
2983 nla, sta_flags_policy))
2987 * Only allow certain flags for interface types so that
2988 * other attributes are silently ignored. Remember that
2989 * this is backward compatibility code with old userspace
2990 * and shouldn't be hit in other cases anyway.
2993 case NL80211_IFTYPE_AP:
2994 case NL80211_IFTYPE_AP_VLAN:
2995 case NL80211_IFTYPE_P2P_GO:
2996 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
2997 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
2998 BIT(NL80211_STA_FLAG_WME) |
2999 BIT(NL80211_STA_FLAG_MFP);
3001 case NL80211_IFTYPE_P2P_CLIENT:
3002 case NL80211_IFTYPE_STATION:
3003 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3004 BIT(NL80211_STA_FLAG_TDLS_PEER);
3006 case NL80211_IFTYPE_MESH_POINT:
3007 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3008 BIT(NL80211_STA_FLAG_MFP) |
3009 BIT(NL80211_STA_FLAG_AUTHORIZED);
3014 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3016 params->sta_flags_set |= (1<<flag);
3018 /* no longer support new API additions in old API */
3019 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3027 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3030 struct nlattr *rate;
3034 rate = nla_nest_start(msg, attr);
3038 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3039 bitrate = cfg80211_calculate_bitrate(info);
3040 /* report 16-bit bitrate only if we can */
3041 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3043 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3045 if (bitrate_compat > 0 &&
3046 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3049 if (info->flags & RATE_INFO_FLAGS_MCS) {
3050 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3052 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3053 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3055 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3056 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3058 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3059 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3061 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3063 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3064 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3066 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3067 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3069 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3070 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3072 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3073 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3075 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3076 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3080 nla_nest_end(msg, rate);
3084 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3086 struct cfg80211_registered_device *rdev,
3087 struct net_device *dev,
3088 const u8 *mac_addr, struct station_info *sinfo)
3091 struct nlattr *sinfoattr, *bss_param;
3093 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3097 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3098 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3099 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3100 goto nla_put_failure;
3102 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3104 goto nla_put_failure;
3105 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3106 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3107 sinfo->connected_time))
3108 goto nla_put_failure;
3109 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3110 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3111 sinfo->inactive_time))
3112 goto nla_put_failure;
3113 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3114 STATION_INFO_RX_BYTES64)) &&
3115 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3116 (u32)sinfo->rx_bytes))
3117 goto nla_put_failure;
3118 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3119 NL80211_STA_INFO_TX_BYTES64)) &&
3120 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3121 (u32)sinfo->tx_bytes))
3122 goto nla_put_failure;
3123 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3124 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3126 goto nla_put_failure;
3127 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3128 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3130 goto nla_put_failure;
3131 if ((sinfo->filled & STATION_INFO_LLID) &&
3132 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3133 goto nla_put_failure;
3134 if ((sinfo->filled & STATION_INFO_PLID) &&
3135 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3136 goto nla_put_failure;
3137 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3138 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3139 sinfo->plink_state))
3140 goto nla_put_failure;
3141 switch (rdev->wiphy.signal_type) {
3142 case CFG80211_SIGNAL_TYPE_MBM:
3143 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3144 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3146 goto nla_put_failure;
3147 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3148 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3150 goto nla_put_failure;
3155 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3156 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3157 NL80211_STA_INFO_TX_BITRATE))
3158 goto nla_put_failure;
3160 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3161 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3162 NL80211_STA_INFO_RX_BITRATE))
3163 goto nla_put_failure;
3165 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3166 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3168 goto nla_put_failure;
3169 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3170 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3172 goto nla_put_failure;
3173 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3174 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3176 goto nla_put_failure;
3177 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3178 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3180 goto nla_put_failure;
3181 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3182 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3183 sinfo->beacon_loss_count))
3184 goto nla_put_failure;
3185 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3186 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3188 goto nla_put_failure;
3189 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3190 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3192 goto nla_put_failure;
3193 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3194 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3196 goto nla_put_failure;
3197 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3198 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3200 goto nla_put_failure;
3202 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3203 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3204 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3205 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3206 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3207 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3208 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3209 sinfo->bss_param.dtim_period) ||
3210 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3211 sinfo->bss_param.beacon_interval))
3212 goto nla_put_failure;
3214 nla_nest_end(msg, bss_param);
3216 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3217 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3218 sizeof(struct nl80211_sta_flag_update),
3220 goto nla_put_failure;
3221 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3222 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3224 goto nla_put_failure;
3225 nla_nest_end(msg, sinfoattr);
3227 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3228 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3229 sinfo->assoc_req_ies))
3230 goto nla_put_failure;
3232 return genlmsg_end(msg, hdr);
3235 genlmsg_cancel(msg, hdr);
3239 static int nl80211_dump_station(struct sk_buff *skb,
3240 struct netlink_callback *cb)
3242 struct station_info sinfo;
3243 struct cfg80211_registered_device *dev;
3244 struct net_device *netdev;
3245 u8 mac_addr[ETH_ALEN];
3246 int sta_idx = cb->args[1];
3249 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3253 if (!dev->ops->dump_station) {
3259 memset(&sinfo, 0, sizeof(sinfo));
3260 err = rdev_dump_station(dev, netdev, sta_idx,
3267 if (nl80211_send_station(skb,
3268 NETLINK_CB(cb->skb).portid,
3269 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3270 dev, netdev, mac_addr,
3279 cb->args[1] = sta_idx;
3282 nl80211_finish_netdev_dump(dev);
3287 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3290 struct net_device *dev = info->user_ptr[1];
3291 struct station_info sinfo;
3292 struct sk_buff *msg;
3293 u8 *mac_addr = NULL;
3296 memset(&sinfo, 0, sizeof(sinfo));
3298 if (!info->attrs[NL80211_ATTR_MAC])
3301 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3303 if (!rdev->ops->get_station)
3306 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3310 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3314 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3315 rdev, dev, mac_addr, &sinfo) < 0) {
3320 return genlmsg_reply(msg, info);
3324 * Get vlan interface making sure it is running and on the right wiphy.
3326 static struct net_device *get_vlan(struct genl_info *info,
3327 struct cfg80211_registered_device *rdev)
3329 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3330 struct net_device *v;
3336 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3338 return ERR_PTR(-ENODEV);
3340 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3345 if (!netif_running(v)) {
3353 return ERR_PTR(ret);
3356 static struct nla_policy
3357 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3358 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3359 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3362 static int nl80211_set_station_tdls(struct genl_info *info,
3363 struct station_parameters *params)
3365 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3369 /* Dummy STA entry gets updated once the peer capabilities are known */
3370 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3372 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3373 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3375 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3377 /* parse WME attributes if present */
3378 if (!info->attrs[NL80211_ATTR_STA_WME])
3381 nla = info->attrs[NL80211_ATTR_STA_WME];
3382 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3383 nl80211_sta_wme_policy);
3387 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3388 params->uapsd_queues = nla_get_u8(
3389 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3390 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3393 if (tb[NL80211_STA_WME_MAX_SP])
3394 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3396 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3399 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3404 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3406 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3408 struct net_device *dev = info->user_ptr[1];
3409 struct station_parameters params;
3410 u8 *mac_addr = NULL;
3412 memset(¶ms, 0, sizeof(params));
3414 params.listen_interval = -1;
3415 params.plink_state = -1;
3417 if (info->attrs[NL80211_ATTR_STA_AID])
3420 if (!info->attrs[NL80211_ATTR_MAC])
3423 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3425 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3426 params.supported_rates =
3427 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3428 params.supported_rates_len =
3429 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3432 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3434 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3435 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3438 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3440 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3441 params.ext_capab_len =
3442 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3445 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3448 if (!rdev->ops->change_station)
3451 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3454 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3455 params.plink_action =
3456 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3458 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3459 params.plink_state =
3460 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3462 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3463 enum nl80211_mesh_power_mode pm = nla_get_u32(
3464 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3466 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3467 pm > NL80211_MESH_POWER_MAX)
3470 params.local_pm = pm;
3473 switch (dev->ieee80211_ptr->iftype) {
3474 case NL80211_IFTYPE_AP:
3475 case NL80211_IFTYPE_AP_VLAN:
3476 case NL80211_IFTYPE_P2P_GO:
3477 /* disallow mesh-specific things */
3478 if (params.plink_action)
3480 if (params.local_pm)
3483 /* TDLS can't be set, ... */
3484 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3487 * ... but don't bother the driver with it. This works around
3488 * a hostapd/wpa_supplicant issue -- it always includes the
3489 * TLDS_PEER flag in the mask even for AP mode.
3491 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3493 /* accept only the listed bits */
3494 if (params.sta_flags_mask &
3495 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3496 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3497 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3498 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3499 BIT(NL80211_STA_FLAG_WME) |
3500 BIT(NL80211_STA_FLAG_MFP)))
3503 /* but authenticated/associated only if driver handles it */
3504 if (!(rdev->wiphy.features &
3505 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3506 params.sta_flags_mask &
3507 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3508 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3511 /* reject other things that can't change */
3512 if (params.supported_rates)
3514 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3516 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3518 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3519 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3522 /* must be last in here for error handling */
3523 params.vlan = get_vlan(info, rdev);
3524 if (IS_ERR(params.vlan))
3525 return PTR_ERR(params.vlan);
3527 case NL80211_IFTYPE_P2P_CLIENT:
3528 case NL80211_IFTYPE_STATION:
3530 * Don't allow userspace to change the TDLS_PEER flag,
3531 * but silently ignore attempts to change it since we
3532 * don't have state here to verify that it doesn't try
3533 * to change the flag.
3535 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3536 /* Include parameters for TDLS peer (driver will check) */
3537 err = nl80211_set_station_tdls(info, ¶ms);
3540 /* disallow things sta doesn't support */
3541 if (params.plink_action)
3543 if (params.local_pm)
3545 /* reject any changes other than AUTHORIZED or WME (for TDLS) */
3546 if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3547 BIT(NL80211_STA_FLAG_WME)))
3550 case NL80211_IFTYPE_ADHOC:
3551 /* disallow things sta doesn't support */
3552 if (params.plink_action)
3554 if (params.local_pm)
3556 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3557 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3559 /* reject any changes other than AUTHORIZED */
3560 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3563 case NL80211_IFTYPE_MESH_POINT:
3564 /* disallow things mesh doesn't support */
3567 if (params.supported_rates)
3569 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3571 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3573 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3574 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3577 * No special handling for TDLS here -- the userspace
3578 * mesh code doesn't have this bug.
3580 if (params.sta_flags_mask &
3581 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3582 BIT(NL80211_STA_FLAG_MFP) |
3583 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3590 /* be aware of params.vlan when changing code here */
3592 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3595 dev_put(params.vlan);
3600 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3602 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3604 struct net_device *dev = info->user_ptr[1];
3605 struct station_parameters params;
3606 u8 *mac_addr = NULL;
3608 memset(¶ms, 0, sizeof(params));
3610 if (!info->attrs[NL80211_ATTR_MAC])
3613 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3616 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3619 if (!info->attrs[NL80211_ATTR_STA_AID])
3622 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3623 params.supported_rates =
3624 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3625 params.supported_rates_len =
3626 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3627 params.listen_interval =
3628 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3630 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3631 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3634 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3636 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3637 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3640 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3642 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3643 params.ext_capab_len =
3644 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3647 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3649 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3651 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3653 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3655 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3656 params.plink_action =
3657 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3659 if (!rdev->ops->add_station)
3662 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3665 switch (dev->ieee80211_ptr->iftype) {
3666 case NL80211_IFTYPE_AP:
3667 case NL80211_IFTYPE_AP_VLAN:
3668 case NL80211_IFTYPE_P2P_GO:
3669 /* parse WME attributes if sta is WME capable */
3670 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3671 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3672 info->attrs[NL80211_ATTR_STA_WME]) {
3673 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3676 nla = info->attrs[NL80211_ATTR_STA_WME];
3677 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3678 nl80211_sta_wme_policy);
3682 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3683 params.uapsd_queues =
3684 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3685 if (params.uapsd_queues &
3686 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3689 if (tb[NL80211_STA_WME_MAX_SP])
3691 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3694 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3697 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3699 /* TDLS peers cannot be added */
3700 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3702 /* but don't bother the driver with it */
3703 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3705 /* allow authenticated/associated only if driver handles it */
3706 if (!(rdev->wiphy.features &
3707 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3708 params.sta_flags_mask &
3709 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3710 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3713 /* must be last in here for error handling */
3714 params.vlan = get_vlan(info, rdev);
3715 if (IS_ERR(params.vlan))
3716 return PTR_ERR(params.vlan);
3718 case NL80211_IFTYPE_MESH_POINT:
3719 /* associated is disallowed */
3720 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3722 /* TDLS peers cannot be added */
3723 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3726 case NL80211_IFTYPE_STATION:
3727 /* associated is disallowed */
3728 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3730 /* Only TDLS peers can be added */
3731 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3733 /* Can only add if TDLS ... */
3734 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3736 /* ... with external setup is supported */
3737 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3744 /* be aware of params.vlan when changing code here */
3746 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3749 dev_put(params.vlan);
3753 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3755 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3756 struct net_device *dev = info->user_ptr[1];
3757 u8 *mac_addr = NULL;
3759 if (info->attrs[NL80211_ATTR_MAC])
3760 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3762 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3763 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3764 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3765 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3768 if (!rdev->ops->del_station)
3771 return rdev_del_station(rdev, dev, mac_addr);
3774 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3775 int flags, struct net_device *dev,
3776 u8 *dst, u8 *next_hop,
3777 struct mpath_info *pinfo)
3780 struct nlattr *pinfoattr;
3782 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3786 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3787 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3788 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3789 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3790 goto nla_put_failure;
3792 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3794 goto nla_put_failure;
3795 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3796 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3798 goto nla_put_failure;
3799 if (((pinfo->filled & MPATH_INFO_SN) &&
3800 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3801 ((pinfo->filled & MPATH_INFO_METRIC) &&
3802 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3804 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3805 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3807 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3808 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3810 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3811 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3812 pinfo->discovery_timeout)) ||
3813 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3814 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3815 pinfo->discovery_retries)))
3816 goto nla_put_failure;
3818 nla_nest_end(msg, pinfoattr);
3820 return genlmsg_end(msg, hdr);
3823 genlmsg_cancel(msg, hdr);
3827 static int nl80211_dump_mpath(struct sk_buff *skb,
3828 struct netlink_callback *cb)
3830 struct mpath_info pinfo;
3831 struct cfg80211_registered_device *dev;
3832 struct net_device *netdev;
3834 u8 next_hop[ETH_ALEN];
3835 int path_idx = cb->args[1];
3838 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3842 if (!dev->ops->dump_mpath) {
3847 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3853 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3860 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3861 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3862 netdev, dst, next_hop,
3871 cb->args[1] = path_idx;
3874 nl80211_finish_netdev_dump(dev);
3878 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3880 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3882 struct net_device *dev = info->user_ptr[1];
3883 struct mpath_info pinfo;
3884 struct sk_buff *msg;
3886 u8 next_hop[ETH_ALEN];
3888 memset(&pinfo, 0, sizeof(pinfo));
3890 if (!info->attrs[NL80211_ATTR_MAC])
3893 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3895 if (!rdev->ops->get_mpath)
3898 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3901 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3905 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3909 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3910 dev, dst, next_hop, &pinfo) < 0) {
3915 return genlmsg_reply(msg, info);
3918 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3920 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3921 struct net_device *dev = info->user_ptr[1];
3923 u8 *next_hop = NULL;
3925 if (!info->attrs[NL80211_ATTR_MAC])
3928 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3931 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3932 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3934 if (!rdev->ops->change_mpath)
3937 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3940 return rdev_change_mpath(rdev, dev, dst, next_hop);
3943 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3946 struct net_device *dev = info->user_ptr[1];
3948 u8 *next_hop = NULL;
3950 if (!info->attrs[NL80211_ATTR_MAC])
3953 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3956 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3957 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3959 if (!rdev->ops->add_mpath)
3962 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3965 return rdev_add_mpath(rdev, dev, dst, next_hop);
3968 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
3970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3971 struct net_device *dev = info->user_ptr[1];
3974 if (info->attrs[NL80211_ATTR_MAC])
3975 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3977 if (!rdev->ops->del_mpath)
3980 return rdev_del_mpath(rdev, dev, dst);
3983 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
3985 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3986 struct net_device *dev = info->user_ptr[1];
3987 struct bss_parameters params;
3989 memset(¶ms, 0, sizeof(params));
3990 /* default to not changing parameters */
3991 params.use_cts_prot = -1;
3992 params.use_short_preamble = -1;
3993 params.use_short_slot_time = -1;
3994 params.ap_isolate = -1;
3995 params.ht_opmode = -1;
3996 params.p2p_ctwindow = -1;
3997 params.p2p_opp_ps = -1;
3999 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4000 params.use_cts_prot =
4001 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4002 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4003 params.use_short_preamble =
4004 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4005 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4006 params.use_short_slot_time =
4007 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4008 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4009 params.basic_rates =
4010 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4011 params.basic_rates_len =
4012 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4014 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4015 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4016 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4018 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4020 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4021 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4023 params.p2p_ctwindow =
4024 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4025 if (params.p2p_ctwindow < 0)
4027 if (params.p2p_ctwindow != 0 &&
4028 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4032 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4035 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4037 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4040 params.p2p_opp_ps = tmp;
4041 if (params.p2p_opp_ps &&
4042 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4046 if (!rdev->ops->change_bss)
4049 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4050 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4053 return rdev_change_bss(rdev, dev, ¶ms);
4056 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4057 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4058 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4059 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4060 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4061 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4062 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4065 static int parse_reg_rule(struct nlattr *tb[],
4066 struct ieee80211_reg_rule *reg_rule)
4068 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4069 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4071 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4073 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4075 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4077 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4079 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4082 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4084 freq_range->start_freq_khz =
4085 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4086 freq_range->end_freq_khz =
4087 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4088 freq_range->max_bandwidth_khz =
4089 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4091 power_rule->max_eirp =
4092 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4094 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4095 power_rule->max_antenna_gain =
4096 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4101 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4105 enum nl80211_user_reg_hint_type user_reg_hint_type;
4108 * You should only get this when cfg80211 hasn't yet initialized
4109 * completely when built-in to the kernel right between the time
4110 * window between nl80211_init() and regulatory_init(), if that is
4113 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4114 return -EINPROGRESS;
4116 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4119 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4121 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4122 user_reg_hint_type =
4123 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4125 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4127 switch (user_reg_hint_type) {
4128 case NL80211_USER_REG_HINT_USER:
4129 case NL80211_USER_REG_HINT_CELL_BASE:
4135 r = regulatory_hint_user(data, user_reg_hint_type);
4140 static int nl80211_get_mesh_config(struct sk_buff *skb,
4141 struct genl_info *info)
4143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4144 struct net_device *dev = info->user_ptr[1];
4145 struct wireless_dev *wdev = dev->ieee80211_ptr;
4146 struct mesh_config cur_params;
4149 struct nlattr *pinfoattr;
4150 struct sk_buff *msg;
4152 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4155 if (!rdev->ops->get_mesh_config)
4159 /* If not connected, get default parameters */
4160 if (!wdev->mesh_id_len)
4161 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4163 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4169 /* Draw up a netlink message to send back */
4170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4173 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4174 NL80211_CMD_GET_MESH_CONFIG);
4177 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4179 goto nla_put_failure;
4180 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4181 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4182 cur_params.dot11MeshRetryTimeout) ||
4183 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4184 cur_params.dot11MeshConfirmTimeout) ||
4185 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4186 cur_params.dot11MeshHoldingTimeout) ||
4187 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4188 cur_params.dot11MeshMaxPeerLinks) ||
4189 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4190 cur_params.dot11MeshMaxRetries) ||
4191 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4192 cur_params.dot11MeshTTL) ||
4193 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4194 cur_params.element_ttl) ||
4195 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4196 cur_params.auto_open_plinks) ||
4197 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4198 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4199 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4200 cur_params.dot11MeshHWMPmaxPREQretries) ||
4201 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4202 cur_params.path_refresh_time) ||
4203 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4204 cur_params.min_discovery_timeout) ||
4205 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4206 cur_params.dot11MeshHWMPactivePathTimeout) ||
4207 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4208 cur_params.dot11MeshHWMPpreqMinInterval) ||
4209 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4210 cur_params.dot11MeshHWMPperrMinInterval) ||
4211 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4212 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4213 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4214 cur_params.dot11MeshHWMPRootMode) ||
4215 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4216 cur_params.dot11MeshHWMPRannInterval) ||
4217 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4218 cur_params.dot11MeshGateAnnouncementProtocol) ||
4219 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4220 cur_params.dot11MeshForwarding) ||
4221 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4222 cur_params.rssi_threshold) ||
4223 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4224 cur_params.ht_opmode) ||
4225 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4226 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4227 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4228 cur_params.dot11MeshHWMProotInterval) ||
4229 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4230 cur_params.dot11MeshHWMPconfirmationInterval) ||
4231 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4232 cur_params.power_mode) ||
4233 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4234 cur_params.dot11MeshAwakeWindowDuration))
4235 goto nla_put_failure;
4236 nla_nest_end(msg, pinfoattr);
4237 genlmsg_end(msg, hdr);
4238 return genlmsg_reply(msg, info);
4241 genlmsg_cancel(msg, hdr);
4247 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4248 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4249 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4250 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4251 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4252 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4253 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4254 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4255 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4256 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4257 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4258 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4259 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4260 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4261 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4262 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4263 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4264 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4265 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4266 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4267 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4268 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4269 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4270 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4271 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4272 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4273 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4274 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4277 static const struct nla_policy
4278 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4279 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4280 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4281 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4282 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4283 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4284 .len = IEEE80211_MAX_DATA_LEN },
4285 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4288 static int nl80211_parse_mesh_config(struct genl_info *info,
4289 struct mesh_config *cfg,
4292 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4295 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4298 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4300 cfg->param = fn(tb[attr]); \
4301 mask |= (1 << (attr - 1)); \
4306 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4308 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4309 info->attrs[NL80211_ATTR_MESH_CONFIG],
4310 nl80211_meshconf_params_policy))
4313 /* This makes sure that there aren't more than 32 mesh config
4314 * parameters (otherwise our bitfield scheme would not work.) */
4315 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4317 /* Fill in the params struct */
4318 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4319 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4321 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4322 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4324 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4325 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4327 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4328 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4330 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4331 mask, NL80211_MESHCONF_MAX_RETRIES,
4333 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4334 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4335 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4336 mask, NL80211_MESHCONF_ELEMENT_TTL,
4338 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4339 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4341 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4343 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4345 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4346 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4348 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4349 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4351 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4352 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4354 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4356 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4358 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4360 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4362 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4364 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4366 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4367 dot11MeshHWMPnetDiameterTraversalTime,
4369 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4371 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4372 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4374 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4375 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4377 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4378 dot11MeshGateAnnouncementProtocol, 0, 1,
4379 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4381 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4382 mask, NL80211_MESHCONF_FORWARDING,
4384 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4385 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4388 mask, NL80211_MESHCONF_HT_OPMODE,
4390 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4392 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4394 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4395 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4397 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4398 dot11MeshHWMPconfirmationInterval,
4400 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4402 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4403 NL80211_MESH_POWER_ACTIVE,
4404 NL80211_MESH_POWER_MAX,
4405 mask, NL80211_MESHCONF_POWER_MODE,
4407 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4409 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4415 #undef FILL_IN_MESH_PARAM_IF_SET
4418 static int nl80211_parse_mesh_setup(struct genl_info *info,
4419 struct mesh_setup *setup)
4421 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4423 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4425 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4426 info->attrs[NL80211_ATTR_MESH_SETUP],
4427 nl80211_mesh_setup_params_policy))
4430 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4431 setup->sync_method =
4432 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4433 IEEE80211_SYNC_METHOD_VENDOR :
4434 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4436 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4437 setup->path_sel_proto =
4438 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4439 IEEE80211_PATH_PROTOCOL_VENDOR :
4440 IEEE80211_PATH_PROTOCOL_HWMP;
4442 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4443 setup->path_metric =
4444 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4445 IEEE80211_PATH_METRIC_VENDOR :
4446 IEEE80211_PATH_METRIC_AIRTIME;
4449 if (tb[NL80211_MESH_SETUP_IE]) {
4450 struct nlattr *ieattr =
4451 tb[NL80211_MESH_SETUP_IE];
4452 if (!is_valid_ie_attr(ieattr))
4454 setup->ie = nla_data(ieattr);
4455 setup->ie_len = nla_len(ieattr);
4457 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4458 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4463 static int nl80211_update_mesh_config(struct sk_buff *skb,
4464 struct genl_info *info)
4466 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4467 struct net_device *dev = info->user_ptr[1];
4468 struct wireless_dev *wdev = dev->ieee80211_ptr;
4469 struct mesh_config cfg;
4473 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4476 if (!rdev->ops->update_mesh_config)
4479 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4484 if (!wdev->mesh_id_len)
4488 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4495 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4497 const struct ieee80211_regdomain *regdom;
4498 struct sk_buff *msg;
4500 struct nlattr *nl_reg_rules;
4504 mutex_lock(&cfg80211_mutex);
4506 if (!cfg80211_regdomain)
4509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4515 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4516 NL80211_CMD_GET_REG);
4520 if (reg_last_request_cell_base() &&
4521 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4522 NL80211_USER_REG_HINT_CELL_BASE))
4523 goto nla_put_failure;
4526 regdom = rcu_dereference(cfg80211_regdomain);
4528 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4529 (regdom->dfs_region &&
4530 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4531 goto nla_put_failure_rcu;
4533 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4535 goto nla_put_failure_rcu;
4537 for (i = 0; i < regdom->n_reg_rules; i++) {
4538 struct nlattr *nl_reg_rule;
4539 const struct ieee80211_reg_rule *reg_rule;
4540 const struct ieee80211_freq_range *freq_range;
4541 const struct ieee80211_power_rule *power_rule;
4543 reg_rule = ®dom->reg_rules[i];
4544 freq_range = ®_rule->freq_range;
4545 power_rule = ®_rule->power_rule;
4547 nl_reg_rule = nla_nest_start(msg, i);
4549 goto nla_put_failure_rcu;
4551 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4553 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4554 freq_range->start_freq_khz) ||
4555 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4556 freq_range->end_freq_khz) ||
4557 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4558 freq_range->max_bandwidth_khz) ||
4559 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4560 power_rule->max_antenna_gain) ||
4561 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4562 power_rule->max_eirp))
4563 goto nla_put_failure_rcu;
4565 nla_nest_end(msg, nl_reg_rule);
4569 nla_nest_end(msg, nl_reg_rules);
4571 genlmsg_end(msg, hdr);
4572 err = genlmsg_reply(msg, info);
4575 nla_put_failure_rcu:
4578 genlmsg_cancel(msg, hdr);
4583 mutex_unlock(&cfg80211_mutex);
4587 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4589 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4590 struct nlattr *nl_reg_rule;
4591 char *alpha2 = NULL;
4592 int rem_reg_rules = 0, r = 0;
4593 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4595 struct ieee80211_regdomain *rd = NULL;
4597 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4600 if (!info->attrs[NL80211_ATTR_REG_RULES])
4603 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4605 if (info->attrs[NL80211_ATTR_DFS_REGION])
4606 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4608 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4611 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4615 size_of_regd = sizeof(struct ieee80211_regdomain) +
4616 num_rules * sizeof(struct ieee80211_reg_rule);
4618 rd = kzalloc(size_of_regd, GFP_KERNEL);
4622 rd->n_reg_rules = num_rules;
4623 rd->alpha2[0] = alpha2[0];
4624 rd->alpha2[1] = alpha2[1];
4627 * Disable DFS master mode if the DFS region was
4628 * not supported or known on this kernel.
4630 if (reg_supported_dfs_region(dfs_region))
4631 rd->dfs_region = dfs_region;
4633 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4635 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4636 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4638 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4644 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4650 mutex_lock(&cfg80211_mutex);
4653 /* set_regdom took ownership */
4655 mutex_unlock(&cfg80211_mutex);
4662 static int validate_scan_freqs(struct nlattr *freqs)
4664 struct nlattr *attr1, *attr2;
4665 int n_channels = 0, tmp1, tmp2;
4667 nla_for_each_nested(attr1, freqs, tmp1) {
4670 * Some hardware has a limited channel list for
4671 * scanning, and it is pretty much nonsensical
4672 * to scan for a channel twice, so disallow that
4673 * and don't require drivers to check that the
4674 * channel list they get isn't longer than what
4675 * they can scan, as long as they can scan all
4676 * the channels they registered at once.
4678 nla_for_each_nested(attr2, freqs, tmp2)
4679 if (attr1 != attr2 &&
4680 nla_get_u32(attr1) == nla_get_u32(attr2))
4687 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4690 struct wireless_dev *wdev = info->user_ptr[1];
4691 struct cfg80211_scan_request *request;
4692 struct nlattr *attr;
4693 struct wiphy *wiphy;
4694 int err, tmp, n_ssids = 0, n_channels, i;
4697 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4700 wiphy = &rdev->wiphy;
4702 if (!rdev->ops->scan)
4705 mutex_lock(&rdev->sched_scan_mtx);
4706 if (rdev->scan_req) {
4711 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4712 n_channels = validate_scan_freqs(
4713 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4719 enum ieee80211_band band;
4722 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4723 if (wiphy->bands[band])
4724 n_channels += wiphy->bands[band]->n_channels;
4727 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4728 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4731 if (n_ssids > wiphy->max_scan_ssids) {
4736 if (info->attrs[NL80211_ATTR_IE])
4737 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4741 if (ie_len > wiphy->max_scan_ie_len) {
4746 request = kzalloc(sizeof(*request)
4747 + sizeof(*request->ssids) * n_ssids
4748 + sizeof(*request->channels) * n_channels
4749 + ie_len, GFP_KERNEL);
4756 request->ssids = (void *)&request->channels[n_channels];
4757 request->n_ssids = n_ssids;
4760 request->ie = (void *)(request->ssids + n_ssids);
4762 request->ie = (void *)(request->channels + n_channels);
4766 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4767 /* user specified, bail out if channel not found */
4768 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4769 struct ieee80211_channel *chan;
4771 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4778 /* ignore disabled channels */
4779 if (chan->flags & IEEE80211_CHAN_DISABLED)
4782 request->channels[i] = chan;
4786 enum ieee80211_band band;
4789 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4791 if (!wiphy->bands[band])
4793 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4794 struct ieee80211_channel *chan;
4796 chan = &wiphy->bands[band]->channels[j];
4798 if (chan->flags & IEEE80211_CHAN_DISABLED)
4801 request->channels[i] = chan;
4812 request->n_channels = i;
4815 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4816 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4817 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4821 request->ssids[i].ssid_len = nla_len(attr);
4822 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4827 if (info->attrs[NL80211_ATTR_IE]) {
4828 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4829 memcpy((void *)request->ie,
4830 nla_data(info->attrs[NL80211_ATTR_IE]),
4834 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4835 if (wiphy->bands[i])
4837 (1 << wiphy->bands[i]->n_bitrates) - 1;
4839 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4840 nla_for_each_nested(attr,
4841 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4843 enum ieee80211_band band = nla_type(attr);
4845 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4849 err = ieee80211_get_ratemask(wiphy->bands[band],
4852 &request->rates[band]);
4858 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4859 request->flags = nla_get_u32(
4860 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4861 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4862 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4863 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4864 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4871 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4873 request->wdev = wdev;
4874 request->wiphy = &rdev->wiphy;
4875 request->scan_start = jiffies;
4877 rdev->scan_req = request;
4878 err = rdev_scan(rdev, request);
4881 nl80211_send_scan_start(rdev, wdev);
4883 dev_hold(wdev->netdev);
4886 rdev->scan_req = NULL;
4891 mutex_unlock(&rdev->sched_scan_mtx);
4895 static int nl80211_start_sched_scan(struct sk_buff *skb,
4896 struct genl_info *info)
4898 struct cfg80211_sched_scan_request *request;
4899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4900 struct net_device *dev = info->user_ptr[1];
4901 struct nlattr *attr;
4902 struct wiphy *wiphy;
4903 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4905 enum ieee80211_band band;
4907 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4909 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4910 !rdev->ops->sched_scan_start)
4913 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4916 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4919 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4923 wiphy = &rdev->wiphy;
4925 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4926 n_channels = validate_scan_freqs(
4927 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4933 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4934 if (wiphy->bands[band])
4935 n_channels += wiphy->bands[band]->n_channels;
4938 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4939 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4943 if (n_ssids > wiphy->max_sched_scan_ssids)
4946 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4947 nla_for_each_nested(attr,
4948 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4952 if (n_match_sets > wiphy->max_match_sets)
4955 if (info->attrs[NL80211_ATTR_IE])
4956 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4960 if (ie_len > wiphy->max_sched_scan_ie_len)
4963 mutex_lock(&rdev->sched_scan_mtx);
4965 if (rdev->sched_scan_req) {
4970 request = kzalloc(sizeof(*request)
4971 + sizeof(*request->ssids) * n_ssids
4972 + sizeof(*request->match_sets) * n_match_sets
4973 + sizeof(*request->channels) * n_channels
4974 + ie_len, GFP_KERNEL);
4981 request->ssids = (void *)&request->channels[n_channels];
4982 request->n_ssids = n_ssids;
4985 request->ie = (void *)(request->ssids + n_ssids);
4987 request->ie = (void *)(request->channels + n_channels);
4992 request->match_sets = (void *)(request->ie + ie_len);
4993 else if (request->ssids)
4994 request->match_sets =
4995 (void *)(request->ssids + n_ssids);
4997 request->match_sets =
4998 (void *)(request->channels + n_channels);
5000 request->n_match_sets = n_match_sets;
5003 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5004 /* user specified, bail out if channel not found */
5005 nla_for_each_nested(attr,
5006 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5008 struct ieee80211_channel *chan;
5010 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5017 /* ignore disabled channels */
5018 if (chan->flags & IEEE80211_CHAN_DISABLED)
5021 request->channels[i] = chan;
5026 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5028 if (!wiphy->bands[band])
5030 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5031 struct ieee80211_channel *chan;
5033 chan = &wiphy->bands[band]->channels[j];
5035 if (chan->flags & IEEE80211_CHAN_DISABLED)
5038 request->channels[i] = chan;
5049 request->n_channels = i;
5052 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5053 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5055 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5059 request->ssids[i].ssid_len = nla_len(attr);
5060 memcpy(request->ssids[i].ssid, nla_data(attr),
5067 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5068 nla_for_each_nested(attr,
5069 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5071 struct nlattr *ssid, *rssi;
5073 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5074 nla_data(attr), nla_len(attr),
5075 nl80211_match_policy);
5076 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5078 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5082 memcpy(request->match_sets[i].ssid.ssid,
5083 nla_data(ssid), nla_len(ssid));
5084 request->match_sets[i].ssid.ssid_len =
5087 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5089 request->rssi_thold = nla_get_u32(rssi);
5091 request->rssi_thold =
5092 NL80211_SCAN_RSSI_THOLD_OFF;
5097 if (info->attrs[NL80211_ATTR_IE]) {
5098 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5099 memcpy((void *)request->ie,
5100 nla_data(info->attrs[NL80211_ATTR_IE]),
5104 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5105 request->flags = nla_get_u32(
5106 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5107 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5108 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5109 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5110 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5117 request->wiphy = &rdev->wiphy;
5118 request->interval = interval;
5119 request->scan_start = jiffies;
5121 err = rdev_sched_scan_start(rdev, dev, request);
5123 rdev->sched_scan_req = request;
5124 nl80211_send_sched_scan(rdev, dev,
5125 NL80211_CMD_START_SCHED_SCAN);
5132 mutex_unlock(&rdev->sched_scan_mtx);
5136 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5137 struct genl_info *info)
5139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5142 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5143 !rdev->ops->sched_scan_stop)
5146 mutex_lock(&rdev->sched_scan_mtx);
5147 err = __cfg80211_stop_sched_scan(rdev, false);
5148 mutex_unlock(&rdev->sched_scan_mtx);
5153 static int nl80211_start_radar_detection(struct sk_buff *skb,
5154 struct genl_info *info)
5156 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5157 struct net_device *dev = info->user_ptr[1];
5158 struct wireless_dev *wdev = dev->ieee80211_ptr;
5159 struct cfg80211_chan_def chandef;
5162 err = nl80211_parse_chandef(rdev, info, &chandef);
5166 if (wdev->cac_started)
5169 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5176 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5179 if (!rdev->ops->start_radar_detection)
5182 mutex_lock(&rdev->devlist_mtx);
5183 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5184 chandef.chan, CHAN_MODE_SHARED,
5185 BIT(chandef.width));
5189 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5191 wdev->channel = chandef.chan;
5192 wdev->cac_started = true;
5193 wdev->cac_start_time = jiffies;
5196 mutex_unlock(&rdev->devlist_mtx);
5201 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5203 struct cfg80211_registered_device *rdev,
5204 struct wireless_dev *wdev,
5205 struct cfg80211_internal_bss *intbss)
5207 struct cfg80211_bss *res = &intbss->pub;
5208 const struct cfg80211_bss_ies *ies;
5213 ASSERT_WDEV_LOCK(wdev);
5215 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5216 NL80211_CMD_NEW_SCAN_RESULTS);
5220 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5222 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5223 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5224 goto nla_put_failure;
5226 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5228 goto nla_put_failure;
5229 if ((!is_zero_ether_addr(res->bssid) &&
5230 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5231 goto nla_put_failure;
5234 ies = rcu_dereference(res->ies);
5236 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5237 goto fail_unlock_rcu;
5239 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5240 ies->len, ies->data))
5241 goto fail_unlock_rcu;
5243 ies = rcu_dereference(res->beacon_ies);
5245 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5246 goto fail_unlock_rcu;
5247 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5248 ies->len, ies->data))
5249 goto fail_unlock_rcu;
5253 if (res->beacon_interval &&
5254 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5255 goto nla_put_failure;
5256 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5257 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5258 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5259 jiffies_to_msecs(jiffies - intbss->ts)))
5260 goto nla_put_failure;
5262 switch (rdev->wiphy.signal_type) {
5263 case CFG80211_SIGNAL_TYPE_MBM:
5264 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5265 goto nla_put_failure;
5267 case CFG80211_SIGNAL_TYPE_UNSPEC:
5268 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5269 goto nla_put_failure;
5275 switch (wdev->iftype) {
5276 case NL80211_IFTYPE_P2P_CLIENT:
5277 case NL80211_IFTYPE_STATION:
5278 if (intbss == wdev->current_bss &&
5279 nla_put_u32(msg, NL80211_BSS_STATUS,
5280 NL80211_BSS_STATUS_ASSOCIATED))
5281 goto nla_put_failure;
5283 case NL80211_IFTYPE_ADHOC:
5284 if (intbss == wdev->current_bss &&
5285 nla_put_u32(msg, NL80211_BSS_STATUS,
5286 NL80211_BSS_STATUS_IBSS_JOINED))
5287 goto nla_put_failure;
5293 nla_nest_end(msg, bss);
5295 return genlmsg_end(msg, hdr);
5300 genlmsg_cancel(msg, hdr);
5304 static int nl80211_dump_scan(struct sk_buff *skb,
5305 struct netlink_callback *cb)
5307 struct cfg80211_registered_device *rdev;
5308 struct net_device *dev;
5309 struct cfg80211_internal_bss *scan;
5310 struct wireless_dev *wdev;
5311 int start = cb->args[1], idx = 0;
5314 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5318 wdev = dev->ieee80211_ptr;
5321 spin_lock_bh(&rdev->bss_lock);
5322 cfg80211_bss_expire(rdev);
5324 cb->seq = rdev->bss_generation;
5326 list_for_each_entry(scan, &rdev->bss_list, list) {
5329 if (nl80211_send_bss(skb, cb,
5330 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5331 rdev, wdev, scan) < 0) {
5337 spin_unlock_bh(&rdev->bss_lock);
5341 nl80211_finish_netdev_dump(rdev);
5346 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5347 int flags, struct net_device *dev,
5348 struct survey_info *survey)
5351 struct nlattr *infoattr;
5353 hdr = nl80211hdr_put(msg, portid, seq, flags,
5354 NL80211_CMD_NEW_SURVEY_RESULTS);
5358 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5359 goto nla_put_failure;
5361 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5363 goto nla_put_failure;
5365 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5366 survey->channel->center_freq))
5367 goto nla_put_failure;
5369 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5370 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5371 goto nla_put_failure;
5372 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5373 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5374 goto nla_put_failure;
5375 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5376 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5377 survey->channel_time))
5378 goto nla_put_failure;
5379 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5380 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5381 survey->channel_time_busy))
5382 goto nla_put_failure;
5383 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5384 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5385 survey->channel_time_ext_busy))
5386 goto nla_put_failure;
5387 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5388 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5389 survey->channel_time_rx))
5390 goto nla_put_failure;
5391 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5392 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5393 survey->channel_time_tx))
5394 goto nla_put_failure;
5396 nla_nest_end(msg, infoattr);
5398 return genlmsg_end(msg, hdr);
5401 genlmsg_cancel(msg, hdr);
5405 static int nl80211_dump_survey(struct sk_buff *skb,
5406 struct netlink_callback *cb)
5408 struct survey_info survey;
5409 struct cfg80211_registered_device *dev;
5410 struct net_device *netdev;
5411 int survey_idx = cb->args[1];
5414 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5418 if (!dev->ops->dump_survey) {
5424 struct ieee80211_channel *chan;
5426 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
5432 /* Survey without a channel doesn't make sense */
5433 if (!survey.channel) {
5438 chan = ieee80211_get_channel(&dev->wiphy,
5439 survey.channel->center_freq);
5440 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5445 if (nl80211_send_survey(skb,
5446 NETLINK_CB(cb->skb).portid,
5447 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5455 cb->args[1] = survey_idx;
5458 nl80211_finish_netdev_dump(dev);
5462 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5464 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5465 NL80211_WPA_VERSION_2));
5468 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5471 struct net_device *dev = info->user_ptr[1];
5472 struct ieee80211_channel *chan;
5473 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5474 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5475 enum nl80211_auth_type auth_type;
5476 struct key_parse key;
5477 bool local_state_change;
5479 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5482 if (!info->attrs[NL80211_ATTR_MAC])
5485 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5488 if (!info->attrs[NL80211_ATTR_SSID])
5491 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5494 err = nl80211_parse_key(info, &key);
5499 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5501 if (!key.p.key || !key.p.key_len)
5503 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5504 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5505 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5506 key.p.key_len != WLAN_KEY_LEN_WEP104))
5518 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5519 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5528 if (!rdev->ops->auth)
5531 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5532 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5535 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5536 chan = ieee80211_get_channel(&rdev->wiphy,
5537 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5538 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5541 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5542 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5544 if (info->attrs[NL80211_ATTR_IE]) {
5545 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5546 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5549 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5550 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5553 if (auth_type == NL80211_AUTHTYPE_SAE &&
5554 !info->attrs[NL80211_ATTR_SAE_DATA])
5557 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5558 if (auth_type != NL80211_AUTHTYPE_SAE)
5560 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5561 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5562 /* need to include at least Auth Transaction and Status Code */
5563 if (sae_data_len < 4)
5567 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5570 * Since we no longer track auth state, ignore
5571 * requests to only change local state.
5573 if (local_state_change)
5576 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5577 ssid, ssid_len, ie, ie_len,
5578 key.p.key, key.p.key_len, key.idx,
5579 sae_data, sae_data_len);
5582 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5583 struct genl_info *info,
5584 struct cfg80211_crypto_settings *settings,
5587 memset(settings, 0, sizeof(*settings));
5589 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5591 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5593 proto = nla_get_u16(
5594 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5595 settings->control_port_ethertype = cpu_to_be16(proto);
5596 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5599 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5600 settings->control_port_no_encrypt = true;
5602 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5604 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5608 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5609 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5610 settings->n_ciphers_pairwise = len / sizeof(u32);
5612 if (len % sizeof(u32))
5615 if (settings->n_ciphers_pairwise > cipher_limit)
5618 memcpy(settings->ciphers_pairwise, data, len);
5620 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5621 if (!cfg80211_supported_cipher_suite(
5623 settings->ciphers_pairwise[i]))
5627 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5628 settings->cipher_group =
5629 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5630 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5631 settings->cipher_group))
5635 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5636 settings->wpa_versions =
5637 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5638 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5642 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5646 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5647 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5648 settings->n_akm_suites = len / sizeof(u32);
5650 if (len % sizeof(u32))
5653 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5656 memcpy(settings->akm_suites, data, len);
5662 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5664 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5665 struct net_device *dev = info->user_ptr[1];
5666 struct cfg80211_crypto_settings crypto;
5667 struct ieee80211_channel *chan;
5668 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5669 int err, ssid_len, ie_len = 0;
5670 bool use_mfp = false;
5672 struct ieee80211_ht_cap *ht_capa = NULL;
5673 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5675 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5678 if (!info->attrs[NL80211_ATTR_MAC] ||
5679 !info->attrs[NL80211_ATTR_SSID] ||
5680 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5683 if (!rdev->ops->assoc)
5686 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5687 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5690 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5692 chan = ieee80211_get_channel(&rdev->wiphy,
5693 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5694 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5697 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5698 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5700 if (info->attrs[NL80211_ATTR_IE]) {
5701 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5702 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5705 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5706 enum nl80211_mfp mfp =
5707 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5708 if (mfp == NL80211_MFP_REQUIRED)
5710 else if (mfp != NL80211_MFP_NO)
5714 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5715 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5717 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5718 flags |= ASSOC_REQ_DISABLE_HT;
5720 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5722 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5724 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5727 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5730 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5732 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5733 ssid, ssid_len, ie, ie_len, use_mfp,
5734 &crypto, flags, ht_capa,
5740 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5743 struct net_device *dev = info->user_ptr[1];
5744 const u8 *ie = NULL, *bssid;
5747 bool local_state_change;
5749 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5752 if (!info->attrs[NL80211_ATTR_MAC])
5755 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5758 if (!rdev->ops->deauth)
5761 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5762 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5765 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5767 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5768 if (reason_code == 0) {
5769 /* Reason Code 0 is reserved */
5773 if (info->attrs[NL80211_ATTR_IE]) {
5774 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5775 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5778 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5780 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5781 local_state_change);
5784 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5786 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5787 struct net_device *dev = info->user_ptr[1];
5788 const u8 *ie = NULL, *bssid;
5791 bool local_state_change;
5793 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5796 if (!info->attrs[NL80211_ATTR_MAC])
5799 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5802 if (!rdev->ops->disassoc)
5805 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5806 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5809 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5811 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5812 if (reason_code == 0) {
5813 /* Reason Code 0 is reserved */
5817 if (info->attrs[NL80211_ATTR_IE]) {
5818 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5819 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5822 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5824 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5825 local_state_change);
5829 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5830 int mcast_rate[IEEE80211_NUM_BANDS],
5833 struct wiphy *wiphy = &rdev->wiphy;
5837 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5838 struct ieee80211_supported_band *sband;
5840 sband = wiphy->bands[band];
5844 for (i = 0; i < sband->n_bitrates; i++) {
5845 if (sband->bitrates[i].bitrate == rateval) {
5846 mcast_rate[band] = i + 1;
5856 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5858 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5859 struct net_device *dev = info->user_ptr[1];
5860 struct cfg80211_ibss_params ibss;
5861 struct wiphy *wiphy;
5862 struct cfg80211_cached_keys *connkeys = NULL;
5865 memset(&ibss, 0, sizeof(ibss));
5867 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5870 if (!info->attrs[NL80211_ATTR_SSID] ||
5871 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5874 ibss.beacon_interval = 100;
5876 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5877 ibss.beacon_interval =
5878 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5879 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5883 if (!rdev->ops->join_ibss)
5886 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5889 wiphy = &rdev->wiphy;
5891 if (info->attrs[NL80211_ATTR_MAC]) {
5892 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5894 if (!is_valid_ether_addr(ibss.bssid))
5897 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5898 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5900 if (info->attrs[NL80211_ATTR_IE]) {
5901 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5902 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5905 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5909 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
5912 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5914 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5915 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5918 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5919 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5921 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5923 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5925 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5926 struct ieee80211_supported_band *sband =
5927 wiphy->bands[ibss.chandef.chan->band];
5929 err = ieee80211_get_ratemask(sband, rates, n_rates,
5935 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5936 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5937 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5940 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5943 connkeys = nl80211_parse_connkeys(rdev,
5944 info->attrs[NL80211_ATTR_KEYS],
5946 if (IS_ERR(connkeys))
5947 return PTR_ERR(connkeys);
5949 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5957 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5959 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5965 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
5967 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5968 struct net_device *dev = info->user_ptr[1];
5970 if (!rdev->ops->leave_ibss)
5973 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5976 return cfg80211_leave_ibss(rdev, dev, false);
5979 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
5981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5982 struct net_device *dev = info->user_ptr[1];
5983 int mcast_rate[IEEE80211_NUM_BANDS];
5987 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
5988 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
5991 if (!rdev->ops->set_mcast_rate)
5994 memset(mcast_rate, 0, sizeof(mcast_rate));
5996 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
5999 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6000 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6003 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6009 #ifdef CONFIG_NL80211_TESTMODE
6010 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6014 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6019 if (!info->attrs[NL80211_ATTR_TESTDATA])
6023 if (rdev->ops->testmode_cmd) {
6024 rdev->testmode_info = info;
6025 err = rdev_testmode_cmd(rdev,
6026 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6027 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6028 rdev->testmode_info = NULL;
6034 static int nl80211_testmode_dump(struct sk_buff *skb,
6035 struct netlink_callback *cb)
6037 struct cfg80211_registered_device *rdev;
6045 * 0 is a valid index, but not valid for args[0],
6046 * so we need to offset by 1.
6048 phy_idx = cb->args[0] - 1;
6050 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6051 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6056 mutex_lock(&cfg80211_mutex);
6057 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6058 nl80211_fam.attrbuf);
6060 mutex_unlock(&cfg80211_mutex);
6061 return PTR_ERR(rdev);
6063 phy_idx = rdev->wiphy_idx;
6065 mutex_unlock(&cfg80211_mutex);
6067 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6069 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6073 data = nla_data((void *)cb->args[1]);
6074 data_len = nla_len((void *)cb->args[1]);
6077 mutex_lock(&cfg80211_mutex);
6078 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6080 mutex_unlock(&cfg80211_mutex);
6083 cfg80211_lock_rdev(rdev);
6084 mutex_unlock(&cfg80211_mutex);
6086 if (!rdev->ops->testmode_dump) {
6092 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6093 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6094 NL80211_CMD_TESTMODE);
6095 struct nlattr *tmdata;
6097 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6098 genlmsg_cancel(skb, hdr);
6102 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6104 genlmsg_cancel(skb, hdr);
6107 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6108 nla_nest_end(skb, tmdata);
6110 if (err == -ENOBUFS || err == -ENOENT) {
6111 genlmsg_cancel(skb, hdr);
6114 genlmsg_cancel(skb, hdr);
6118 genlmsg_end(skb, hdr);
6123 cb->args[0] = phy_idx + 1;
6125 cfg80211_unlock_rdev(rdev);
6129 static struct sk_buff *
6130 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6131 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6133 struct sk_buff *skb;
6135 struct nlattr *data;
6137 skb = nlmsg_new(approxlen + 100, gfp);
6141 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6147 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6148 goto nla_put_failure;
6149 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6151 ((void **)skb->cb)[0] = rdev;
6152 ((void **)skb->cb)[1] = hdr;
6153 ((void **)skb->cb)[2] = data;
6162 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6165 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6167 if (WARN_ON(!rdev->testmode_info))
6170 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6171 rdev->testmode_info->snd_portid,
6172 rdev->testmode_info->snd_seq,
6175 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6177 int cfg80211_testmode_reply(struct sk_buff *skb)
6179 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6180 void *hdr = ((void **)skb->cb)[1];
6181 struct nlattr *data = ((void **)skb->cb)[2];
6183 if (WARN_ON(!rdev->testmode_info)) {
6188 nla_nest_end(skb, data);
6189 genlmsg_end(skb, hdr);
6190 return genlmsg_reply(skb, rdev->testmode_info);
6192 EXPORT_SYMBOL(cfg80211_testmode_reply);
6194 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6195 int approxlen, gfp_t gfp)
6197 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6199 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6201 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6203 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6205 void *hdr = ((void **)skb->cb)[1];
6206 struct nlattr *data = ((void **)skb->cb)[2];
6208 nla_nest_end(skb, data);
6209 genlmsg_end(skb, hdr);
6210 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6212 EXPORT_SYMBOL(cfg80211_testmode_event);
6215 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6217 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6218 struct net_device *dev = info->user_ptr[1];
6219 struct cfg80211_connect_params connect;
6220 struct wiphy *wiphy;
6221 struct cfg80211_cached_keys *connkeys = NULL;
6224 memset(&connect, 0, sizeof(connect));
6226 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6229 if (!info->attrs[NL80211_ATTR_SSID] ||
6230 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6233 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6235 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6236 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6237 NL80211_CMD_CONNECT))
6240 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6242 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6244 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6245 NL80211_MAX_NR_CIPHER_SUITES);
6249 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6250 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6253 wiphy = &rdev->wiphy;
6255 connect.bg_scan_period = -1;
6256 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6257 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6258 connect.bg_scan_period =
6259 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6262 if (info->attrs[NL80211_ATTR_MAC])
6263 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6264 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6265 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6267 if (info->attrs[NL80211_ATTR_IE]) {
6268 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6269 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6272 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6273 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6274 if (connect.mfp != NL80211_MFP_REQUIRED &&
6275 connect.mfp != NL80211_MFP_NO)
6278 connect.mfp = NL80211_MFP_NO;
6281 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6283 ieee80211_get_channel(wiphy,
6284 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6285 if (!connect.channel ||
6286 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6290 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6291 connkeys = nl80211_parse_connkeys(rdev,
6292 info->attrs[NL80211_ATTR_KEYS], NULL);
6293 if (IS_ERR(connkeys))
6294 return PTR_ERR(connkeys);
6297 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6298 connect.flags |= ASSOC_REQ_DISABLE_HT;
6300 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6301 memcpy(&connect.ht_capa_mask,
6302 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6303 sizeof(connect.ht_capa_mask));
6305 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6306 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6310 memcpy(&connect.ht_capa,
6311 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6312 sizeof(connect.ht_capa));
6315 err = cfg80211_connect(rdev, dev, &connect, connkeys);
6321 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6324 struct net_device *dev = info->user_ptr[1];
6327 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6328 reason = WLAN_REASON_DEAUTH_LEAVING;
6330 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6335 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6336 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6339 return cfg80211_disconnect(rdev, dev, reason, true);
6342 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6344 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6349 if (!info->attrs[NL80211_ATTR_PID])
6352 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6354 net = get_net_ns_by_pid(pid);
6356 return PTR_ERR(net);
6360 /* check if anything to do */
6361 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6362 err = cfg80211_switch_netns(rdev, net);
6368 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6371 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6372 struct cfg80211_pmksa *pmksa) = NULL;
6373 struct net_device *dev = info->user_ptr[1];
6374 struct cfg80211_pmksa pmksa;
6376 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6378 if (!info->attrs[NL80211_ATTR_MAC])
6381 if (!info->attrs[NL80211_ATTR_PMKID])
6384 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6385 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6387 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6388 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6391 switch (info->genlhdr->cmd) {
6392 case NL80211_CMD_SET_PMKSA:
6393 rdev_ops = rdev->ops->set_pmksa;
6395 case NL80211_CMD_DEL_PMKSA:
6396 rdev_ops = rdev->ops->del_pmksa;
6406 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6409 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6412 struct net_device *dev = info->user_ptr[1];
6414 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6415 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6418 if (!rdev->ops->flush_pmksa)
6421 return rdev_flush_pmksa(rdev, dev);
6424 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6427 struct net_device *dev = info->user_ptr[1];
6428 u8 action_code, dialog_token;
6432 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6433 !rdev->ops->tdls_mgmt)
6436 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6437 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6438 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6439 !info->attrs[NL80211_ATTR_IE] ||
6440 !info->attrs[NL80211_ATTR_MAC])
6443 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6444 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6445 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6446 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6448 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6449 dialog_token, status_code,
6450 nla_data(info->attrs[NL80211_ATTR_IE]),
6451 nla_len(info->attrs[NL80211_ATTR_IE]));
6454 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6456 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6457 struct net_device *dev = info->user_ptr[1];
6458 enum nl80211_tdls_operation operation;
6461 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6462 !rdev->ops->tdls_oper)
6465 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6466 !info->attrs[NL80211_ATTR_MAC])
6469 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6470 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6472 return rdev_tdls_oper(rdev, dev, peer, operation);
6475 static int nl80211_remain_on_channel(struct sk_buff *skb,
6476 struct genl_info *info)
6478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6479 struct wireless_dev *wdev = info->user_ptr[1];
6480 struct cfg80211_chan_def chandef;
6481 struct sk_buff *msg;
6487 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6488 !info->attrs[NL80211_ATTR_DURATION])
6491 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6493 if (!rdev->ops->remain_on_channel ||
6494 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6498 * We should be on that channel for at least a minimum amount of
6499 * time (10ms) but no longer than the driver supports.
6501 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6502 duration > rdev->wiphy.max_remain_on_channel_duration)
6505 err = nl80211_parse_chandef(rdev, info, &chandef);
6509 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6513 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6514 NL80211_CMD_REMAIN_ON_CHANNEL);
6521 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6527 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6528 goto nla_put_failure;
6530 genlmsg_end(msg, hdr);
6532 return genlmsg_reply(msg, info);
6541 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6542 struct genl_info *info)
6544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6545 struct wireless_dev *wdev = info->user_ptr[1];
6548 if (!info->attrs[NL80211_ATTR_COOKIE])
6551 if (!rdev->ops->cancel_remain_on_channel)
6554 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6556 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6559 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6560 u8 *rates, u8 rates_len)
6565 for (i = 0; i < rates_len; i++) {
6566 int rate = (rates[i] & 0x7f) * 5;
6568 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6569 struct ieee80211_rate *srate =
6570 &sband->bitrates[ridx];
6571 if (rate == srate->bitrate) {
6576 if (ridx == sband->n_bitrates)
6577 return 0; /* rate not found */
6583 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6584 u8 *rates, u8 rates_len,
6585 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6589 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6591 for (i = 0; i < rates_len; i++) {
6594 ridx = rates[i] / 8;
6595 rbit = BIT(rates[i] % 8);
6597 /* check validity */
6598 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6601 /* check availability */
6602 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6611 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6612 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6613 .len = NL80211_MAX_SUPP_RATES },
6614 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6615 .len = NL80211_MAX_SUPP_HT_RATES },
6618 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6619 struct genl_info *info)
6621 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6623 struct cfg80211_bitrate_mask mask;
6625 struct net_device *dev = info->user_ptr[1];
6626 struct nlattr *tx_rates;
6627 struct ieee80211_supported_band *sband;
6629 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6632 if (!rdev->ops->set_bitrate_mask)
6635 memset(&mask, 0, sizeof(mask));
6636 /* Default to all rates enabled */
6637 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6638 sband = rdev->wiphy.bands[i];
6639 mask.control[i].legacy =
6640 sband ? (1 << sband->n_bitrates) - 1 : 0;
6642 memcpy(mask.control[i].mcs,
6643 sband->ht_cap.mcs.rx_mask,
6644 sizeof(mask.control[i].mcs));
6646 memset(mask.control[i].mcs, 0,
6647 sizeof(mask.control[i].mcs));
6651 * The nested attribute uses enum nl80211_band as the index. This maps
6652 * directly to the enum ieee80211_band values used in cfg80211.
6654 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6655 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6657 enum ieee80211_band band = nla_type(tx_rates);
6658 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6660 sband = rdev->wiphy.bands[band];
6663 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6664 nla_len(tx_rates), nl80211_txattr_policy);
6665 if (tb[NL80211_TXRATE_LEGACY]) {
6666 mask.control[band].legacy = rateset_to_mask(
6668 nla_data(tb[NL80211_TXRATE_LEGACY]),
6669 nla_len(tb[NL80211_TXRATE_LEGACY]));
6670 if ((mask.control[band].legacy == 0) &&
6671 nla_len(tb[NL80211_TXRATE_LEGACY]))
6674 if (tb[NL80211_TXRATE_MCS]) {
6675 if (!ht_rateset_to_mask(
6677 nla_data(tb[NL80211_TXRATE_MCS]),
6678 nla_len(tb[NL80211_TXRATE_MCS]),
6679 mask.control[band].mcs))
6683 if (mask.control[band].legacy == 0) {
6684 /* don't allow empty legacy rates if HT
6685 * is not even supported. */
6686 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6689 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6690 if (mask.control[band].mcs[i])
6693 /* legacy and mcs rates may not be both empty */
6694 if (i == IEEE80211_HT_MCS_MASK_LEN)
6699 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6702 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6705 struct wireless_dev *wdev = info->user_ptr[1];
6706 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6708 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6711 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6712 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6714 switch (wdev->iftype) {
6715 case NL80211_IFTYPE_STATION:
6716 case NL80211_IFTYPE_ADHOC:
6717 case NL80211_IFTYPE_P2P_CLIENT:
6718 case NL80211_IFTYPE_AP:
6719 case NL80211_IFTYPE_AP_VLAN:
6720 case NL80211_IFTYPE_MESH_POINT:
6721 case NL80211_IFTYPE_P2P_GO:
6722 case NL80211_IFTYPE_P2P_DEVICE:
6728 /* not much point in registering if we can't reply */
6729 if (!rdev->ops->mgmt_tx)
6732 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6733 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6734 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6737 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6740 struct wireless_dev *wdev = info->user_ptr[1];
6741 struct cfg80211_chan_def chandef;
6745 struct sk_buff *msg = NULL;
6746 unsigned int wait = 0;
6747 bool offchan, no_cck, dont_wait_for_ack;
6749 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6751 if (!info->attrs[NL80211_ATTR_FRAME])
6754 if (!rdev->ops->mgmt_tx)
6757 switch (wdev->iftype) {
6758 case NL80211_IFTYPE_STATION:
6759 case NL80211_IFTYPE_ADHOC:
6760 case NL80211_IFTYPE_P2P_CLIENT:
6761 case NL80211_IFTYPE_AP:
6762 case NL80211_IFTYPE_AP_VLAN:
6763 case NL80211_IFTYPE_MESH_POINT:
6764 case NL80211_IFTYPE_P2P_GO:
6765 case NL80211_IFTYPE_P2P_DEVICE:
6771 if (info->attrs[NL80211_ATTR_DURATION]) {
6772 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6774 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6777 * We should wait on the channel for at least a minimum amount
6778 * of time (10ms) but no longer than the driver supports.
6780 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6781 wait > rdev->wiphy.max_remain_on_channel_duration)
6786 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6788 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6791 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6793 err = nl80211_parse_chandef(rdev, info, &chandef);
6797 if (!dont_wait_for_ack) {
6798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6802 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6811 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
6812 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6813 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6814 no_cck, dont_wait_for_ack, &cookie);
6819 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6820 goto nla_put_failure;
6822 genlmsg_end(msg, hdr);
6823 return genlmsg_reply(msg, info);
6835 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6838 struct wireless_dev *wdev = info->user_ptr[1];
6841 if (!info->attrs[NL80211_ATTR_COOKIE])
6844 if (!rdev->ops->mgmt_tx_cancel_wait)
6847 switch (wdev->iftype) {
6848 case NL80211_IFTYPE_STATION:
6849 case NL80211_IFTYPE_ADHOC:
6850 case NL80211_IFTYPE_P2P_CLIENT:
6851 case NL80211_IFTYPE_AP:
6852 case NL80211_IFTYPE_AP_VLAN:
6853 case NL80211_IFTYPE_P2P_GO:
6854 case NL80211_IFTYPE_P2P_DEVICE:
6860 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6862 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6865 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6868 struct wireless_dev *wdev;
6869 struct net_device *dev = info->user_ptr[1];
6874 if (!info->attrs[NL80211_ATTR_PS_STATE])
6877 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6879 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6882 wdev = dev->ieee80211_ptr;
6884 if (!rdev->ops->set_power_mgmt)
6887 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6889 if (state == wdev->ps)
6892 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6898 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6901 enum nl80211_ps_state ps_state;
6902 struct wireless_dev *wdev;
6903 struct net_device *dev = info->user_ptr[1];
6904 struct sk_buff *msg;
6908 wdev = dev->ieee80211_ptr;
6910 if (!rdev->ops->set_power_mgmt)
6913 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6917 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6918 NL80211_CMD_GET_POWER_SAVE);
6925 ps_state = NL80211_PS_ENABLED;
6927 ps_state = NL80211_PS_DISABLED;
6929 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6930 goto nla_put_failure;
6932 genlmsg_end(msg, hdr);
6933 return genlmsg_reply(msg, info);
6942 static struct nla_policy
6943 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6944 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6945 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6946 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6947 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6948 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6949 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6952 static int nl80211_set_cqm_txe(struct genl_info *info,
6953 u32 rate, u32 pkts, u32 intvl)
6955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6956 struct wireless_dev *wdev;
6957 struct net_device *dev = info->user_ptr[1];
6959 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
6962 wdev = dev->ieee80211_ptr;
6964 if (!rdev->ops->set_cqm_txe_config)
6967 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6968 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6971 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
6974 static int nl80211_set_cqm_rssi(struct genl_info *info,
6975 s32 threshold, u32 hysteresis)
6977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6978 struct wireless_dev *wdev;
6979 struct net_device *dev = info->user_ptr[1];
6984 wdev = dev->ieee80211_ptr;
6986 if (!rdev->ops->set_cqm_rssi_config)
6989 if (wdev->iftype != NL80211_IFTYPE_STATION &&
6990 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
6993 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
6996 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
6998 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7002 cqm = info->attrs[NL80211_ATTR_CQM];
7008 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7009 nl80211_attr_cqm_policy);
7013 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7014 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7017 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7018 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7019 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
7020 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7021 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7022 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7023 u32 rate, pkts, intvl;
7024 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7025 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7026 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7027 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7035 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7038 struct net_device *dev = info->user_ptr[1];
7039 struct mesh_config cfg;
7040 struct mesh_setup setup;
7043 /* start with default */
7044 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7045 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7047 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7048 /* and parse parameters if given */
7049 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7054 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7055 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7058 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7059 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7061 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7062 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7063 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7066 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7067 setup.beacon_interval =
7068 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7069 if (setup.beacon_interval < 10 ||
7070 setup.beacon_interval > 10000)
7074 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7076 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7077 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7081 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7082 /* parse additional setup parameters if given */
7083 err = nl80211_parse_mesh_setup(info, &setup);
7088 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7089 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7093 /* cfg80211_join_mesh() will sort it out */
7094 setup.chandef.chan = NULL;
7097 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7100 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7102 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7103 struct net_device *dev = info->user_ptr[1];
7105 return cfg80211_leave_mesh(rdev, dev);
7109 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7110 struct cfg80211_registered_device *rdev)
7112 struct nlattr *nl_pats, *nl_pat;
7115 if (!rdev->wowlan->n_patterns)
7118 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7122 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7123 nl_pat = nla_nest_start(msg, i + 1);
7126 pat_len = rdev->wowlan->patterns[i].pattern_len;
7127 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7128 DIV_ROUND_UP(pat_len, 8),
7129 rdev->wowlan->patterns[i].mask) ||
7130 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7131 pat_len, rdev->wowlan->patterns[i].pattern) ||
7132 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7133 rdev->wowlan->patterns[i].pkt_offset))
7135 nla_nest_end(msg, nl_pat);
7137 nla_nest_end(msg, nl_pats);
7142 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7143 struct cfg80211_wowlan_tcp *tcp)
7145 struct nlattr *nl_tcp;
7150 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7154 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7155 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7156 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7157 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7158 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7159 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7160 tcp->payload_len, tcp->payload) ||
7161 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7162 tcp->data_interval) ||
7163 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7164 tcp->wake_len, tcp->wake_data) ||
7165 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7166 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7169 if (tcp->payload_seq.len &&
7170 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7171 sizeof(tcp->payload_seq), &tcp->payload_seq))
7174 if (tcp->payload_tok.len &&
7175 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7176 sizeof(tcp->payload_tok) + tcp->tokens_size,
7183 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7185 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7186 struct sk_buff *msg;
7188 u32 size = NLMSG_DEFAULT_SIZE;
7190 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7191 !rdev->wiphy.wowlan.tcp)
7194 if (rdev->wowlan && rdev->wowlan->tcp) {
7195 /* adjust size to have room for all the data */
7196 size += rdev->wowlan->tcp->tokens_size +
7197 rdev->wowlan->tcp->payload_len +
7198 rdev->wowlan->tcp->wake_len +
7199 rdev->wowlan->tcp->wake_len / 8;
7202 msg = nlmsg_new(size, GFP_KERNEL);
7206 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7207 NL80211_CMD_GET_WOWLAN);
7209 goto nla_put_failure;
7212 struct nlattr *nl_wowlan;
7214 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7216 goto nla_put_failure;
7218 if ((rdev->wowlan->any &&
7219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7220 (rdev->wowlan->disconnect &&
7221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7222 (rdev->wowlan->magic_pkt &&
7223 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7224 (rdev->wowlan->gtk_rekey_failure &&
7225 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7226 (rdev->wowlan->eap_identity_req &&
7227 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7228 (rdev->wowlan->four_way_handshake &&
7229 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7230 (rdev->wowlan->rfkill_release &&
7231 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7232 goto nla_put_failure;
7234 if (nl80211_send_wowlan_patterns(msg, rdev))
7235 goto nla_put_failure;
7237 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7238 goto nla_put_failure;
7240 nla_nest_end(msg, nl_wowlan);
7243 genlmsg_end(msg, hdr);
7244 return genlmsg_reply(msg, info);
7251 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7252 struct nlattr *attr,
7253 struct cfg80211_wowlan *trig)
7255 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7256 struct cfg80211_wowlan_tcp *cfg;
7257 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7258 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7260 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7263 if (!rdev->wiphy.wowlan.tcp)
7266 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7267 nla_data(attr), nla_len(attr),
7268 nl80211_wowlan_tcp_policy);
7272 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7273 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7274 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7275 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7276 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7277 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7278 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7279 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7282 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7283 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7286 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7287 rdev->wiphy.wowlan.tcp->data_interval_max)
7290 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7291 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7294 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7295 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7298 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7299 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7301 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7302 tokens_size = tokln - sizeof(*tok);
7304 if (!tok->len || tokens_size % tok->len)
7306 if (!rdev->wiphy.wowlan.tcp->tok)
7308 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7310 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7312 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7314 if (tok->offset + tok->len > data_size)
7318 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7319 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7320 if (!rdev->wiphy.wowlan.tcp->seq)
7322 if (seq->len == 0 || seq->len > 4)
7324 if (seq->len + seq->offset > data_size)
7328 size = sizeof(*cfg);
7330 size += wake_size + wake_mask_size;
7331 size += tokens_size;
7333 cfg = kzalloc(size, GFP_KERNEL);
7336 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7337 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7338 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7340 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7341 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7345 /* allocate a socket and port for it and use it */
7346 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7347 IPPROTO_TCP, &cfg->sock, 1);
7352 if (inet_csk_get_port(cfg->sock->sk, port)) {
7353 sock_release(cfg->sock);
7357 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7363 cfg->src_port = port;
7366 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7367 cfg->payload_len = data_size;
7368 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7369 memcpy((void *)cfg->payload,
7370 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7373 cfg->payload_seq = *seq;
7374 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7375 cfg->wake_len = wake_size;
7376 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7377 memcpy((void *)cfg->wake_data,
7378 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7380 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7381 data_size + wake_size;
7382 memcpy((void *)cfg->wake_mask,
7383 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7386 cfg->tokens_size = tokens_size;
7387 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7395 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7397 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7398 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7399 struct cfg80211_wowlan new_triggers = {};
7400 struct cfg80211_wowlan *ntrig;
7401 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7403 bool prev_enabled = rdev->wowlan;
7405 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7406 !rdev->wiphy.wowlan.tcp)
7409 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7410 cfg80211_rdev_free_wowlan(rdev);
7411 rdev->wowlan = NULL;
7415 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7416 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7417 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7418 nl80211_wowlan_policy);
7422 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7423 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7425 new_triggers.any = true;
7428 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7429 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7431 new_triggers.disconnect = true;
7434 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7435 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7437 new_triggers.magic_pkt = true;
7440 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7443 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7444 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7446 new_triggers.gtk_rekey_failure = true;
7449 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7450 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7452 new_triggers.eap_identity_req = true;
7455 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7456 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7458 new_triggers.four_way_handshake = true;
7461 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7462 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7464 new_triggers.rfkill_release = true;
7467 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7470 int rem, pat_len, mask_len, pkt_offset;
7471 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7473 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7476 if (n_patterns > wowlan->n_patterns)
7479 new_triggers.patterns = kcalloc(n_patterns,
7480 sizeof(new_triggers.patterns[0]),
7482 if (!new_triggers.patterns)
7485 new_triggers.n_patterns = n_patterns;
7488 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7490 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7491 nla_data(pat), nla_len(pat), NULL);
7493 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7494 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7496 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7497 mask_len = DIV_ROUND_UP(pat_len, 8);
7498 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7501 if (pat_len > wowlan->pattern_max_len ||
7502 pat_len < wowlan->pattern_min_len)
7505 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7508 pkt_offset = nla_get_u32(
7509 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7510 if (pkt_offset > wowlan->max_pkt_offset)
7512 new_triggers.patterns[i].pkt_offset = pkt_offset;
7514 new_triggers.patterns[i].mask =
7515 kmalloc(mask_len + pat_len, GFP_KERNEL);
7516 if (!new_triggers.patterns[i].mask) {
7520 new_triggers.patterns[i].pattern =
7521 new_triggers.patterns[i].mask + mask_len;
7522 memcpy(new_triggers.patterns[i].mask,
7523 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7525 new_triggers.patterns[i].pattern_len = pat_len;
7526 memcpy(new_triggers.patterns[i].pattern,
7527 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7533 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7534 err = nl80211_parse_wowlan_tcp(
7535 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7541 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7546 cfg80211_rdev_free_wowlan(rdev);
7547 rdev->wowlan = ntrig;
7550 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
7551 rdev_set_wakeup(rdev, rdev->wowlan);
7555 for (i = 0; i < new_triggers.n_patterns; i++)
7556 kfree(new_triggers.patterns[i].mask);
7557 kfree(new_triggers.patterns);
7558 if (new_triggers.tcp && new_triggers.tcp->sock)
7559 sock_release(new_triggers.tcp->sock);
7560 kfree(new_triggers.tcp);
7565 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7567 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7568 struct net_device *dev = info->user_ptr[1];
7569 struct wireless_dev *wdev = dev->ieee80211_ptr;
7570 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7571 struct cfg80211_gtk_rekey_data rekey_data;
7574 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7577 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7578 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7579 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7580 nl80211_rekey_policy);
7584 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7586 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7588 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7591 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7593 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7595 memcpy(rekey_data.replay_ctr,
7596 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7597 NL80211_REPLAY_CTR_LEN);
7600 if (!wdev->current_bss) {
7605 if (!rdev->ops->set_rekey_data) {
7610 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
7616 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7617 struct genl_info *info)
7619 struct net_device *dev = info->user_ptr[1];
7620 struct wireless_dev *wdev = dev->ieee80211_ptr;
7622 if (wdev->iftype != NL80211_IFTYPE_AP &&
7623 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7626 if (wdev->ap_unexpected_nlportid)
7629 wdev->ap_unexpected_nlportid = info->snd_portid;
7633 static int nl80211_probe_client(struct sk_buff *skb,
7634 struct genl_info *info)
7636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7637 struct net_device *dev = info->user_ptr[1];
7638 struct wireless_dev *wdev = dev->ieee80211_ptr;
7639 struct sk_buff *msg;
7645 if (wdev->iftype != NL80211_IFTYPE_AP &&
7646 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7649 if (!info->attrs[NL80211_ATTR_MAC])
7652 if (!rdev->ops->probe_client)
7655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7659 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7660 NL80211_CMD_PROBE_CLIENT);
7667 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7669 err = rdev_probe_client(rdev, dev, addr, &cookie);
7673 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7674 goto nla_put_failure;
7676 genlmsg_end(msg, hdr);
7678 return genlmsg_reply(msg, info);
7687 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7690 struct cfg80211_beacon_registration *reg, *nreg;
7693 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7696 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7700 /* First, check if already registered. */
7701 spin_lock_bh(&rdev->beacon_registrations_lock);
7702 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7703 if (reg->nlportid == info->snd_portid) {
7708 /* Add it to the list */
7709 nreg->nlportid = info->snd_portid;
7710 list_add(&nreg->list, &rdev->beacon_registrations);
7712 spin_unlock_bh(&rdev->beacon_registrations_lock);
7716 spin_unlock_bh(&rdev->beacon_registrations_lock);
7721 static int nl80211_start_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];
7727 if (!rdev->ops->start_p2p_device)
7730 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7733 if (wdev->p2p_started)
7736 mutex_lock(&rdev->devlist_mtx);
7737 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7738 mutex_unlock(&rdev->devlist_mtx);
7742 err = rdev_start_p2p_device(rdev, wdev);
7746 wdev->p2p_started = true;
7747 mutex_lock(&rdev->devlist_mtx);
7749 mutex_unlock(&rdev->devlist_mtx);
7754 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7757 struct wireless_dev *wdev = info->user_ptr[1];
7759 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7762 if (!rdev->ops->stop_p2p_device)
7765 mutex_lock(&rdev->sched_scan_mtx);
7766 cfg80211_stop_p2p_device(rdev, wdev);
7767 mutex_unlock(&rdev->sched_scan_mtx);
7772 #define NL80211_FLAG_NEED_WIPHY 0x01
7773 #define NL80211_FLAG_NEED_NETDEV 0x02
7774 #define NL80211_FLAG_NEED_RTNL 0x04
7775 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7776 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7777 NL80211_FLAG_CHECK_NETDEV_UP)
7778 #define NL80211_FLAG_NEED_WDEV 0x10
7779 /* If a netdev is associated, it must be UP, P2P must be started */
7780 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7781 NL80211_FLAG_CHECK_NETDEV_UP)
7783 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7784 struct genl_info *info)
7786 struct cfg80211_registered_device *rdev;
7787 struct wireless_dev *wdev;
7788 struct net_device *dev;
7789 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7794 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7795 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7799 return PTR_ERR(rdev);
7801 info->user_ptr[0] = rdev;
7802 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7803 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7804 mutex_lock(&cfg80211_mutex);
7805 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7808 mutex_unlock(&cfg80211_mutex);
7811 return PTR_ERR(wdev);
7815 rdev = wiphy_to_dev(wdev->wiphy);
7817 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7819 mutex_unlock(&cfg80211_mutex);
7825 info->user_ptr[1] = dev;
7827 info->user_ptr[1] = wdev;
7831 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7832 !netif_running(dev)) {
7833 mutex_unlock(&cfg80211_mutex);
7840 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7841 if (!wdev->p2p_started) {
7842 mutex_unlock(&cfg80211_mutex);
7849 cfg80211_lock_rdev(rdev);
7851 mutex_unlock(&cfg80211_mutex);
7853 info->user_ptr[0] = rdev;
7859 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7860 struct genl_info *info)
7862 if (info->user_ptr[0])
7863 cfg80211_unlock_rdev(info->user_ptr[0]);
7864 if (info->user_ptr[1]) {
7865 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7866 struct wireless_dev *wdev = info->user_ptr[1];
7869 dev_put(wdev->netdev);
7871 dev_put(info->user_ptr[1]);
7874 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7878 static struct genl_ops nl80211_ops[] = {
7880 .cmd = NL80211_CMD_GET_WIPHY,
7881 .doit = nl80211_get_wiphy,
7882 .dumpit = nl80211_dump_wiphy,
7883 .policy = nl80211_policy,
7884 /* can be retrieved by unprivileged users */
7885 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7888 .cmd = NL80211_CMD_SET_WIPHY,
7889 .doit = nl80211_set_wiphy,
7890 .policy = nl80211_policy,
7891 .flags = GENL_ADMIN_PERM,
7892 .internal_flags = NL80211_FLAG_NEED_RTNL,
7895 .cmd = NL80211_CMD_GET_INTERFACE,
7896 .doit = nl80211_get_interface,
7897 .dumpit = nl80211_dump_interface,
7898 .policy = nl80211_policy,
7899 /* can be retrieved by unprivileged users */
7900 .internal_flags = NL80211_FLAG_NEED_WDEV,
7903 .cmd = NL80211_CMD_SET_INTERFACE,
7904 .doit = nl80211_set_interface,
7905 .policy = nl80211_policy,
7906 .flags = GENL_ADMIN_PERM,
7907 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7908 NL80211_FLAG_NEED_RTNL,
7911 .cmd = NL80211_CMD_NEW_INTERFACE,
7912 .doit = nl80211_new_interface,
7913 .policy = nl80211_policy,
7914 .flags = GENL_ADMIN_PERM,
7915 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7916 NL80211_FLAG_NEED_RTNL,
7919 .cmd = NL80211_CMD_DEL_INTERFACE,
7920 .doit = nl80211_del_interface,
7921 .policy = nl80211_policy,
7922 .flags = GENL_ADMIN_PERM,
7923 .internal_flags = NL80211_FLAG_NEED_WDEV |
7924 NL80211_FLAG_NEED_RTNL,
7927 .cmd = NL80211_CMD_GET_KEY,
7928 .doit = nl80211_get_key,
7929 .policy = nl80211_policy,
7930 .flags = GENL_ADMIN_PERM,
7931 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7932 NL80211_FLAG_NEED_RTNL,
7935 .cmd = NL80211_CMD_SET_KEY,
7936 .doit = nl80211_set_key,
7937 .policy = nl80211_policy,
7938 .flags = GENL_ADMIN_PERM,
7939 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7940 NL80211_FLAG_NEED_RTNL,
7943 .cmd = NL80211_CMD_NEW_KEY,
7944 .doit = nl80211_new_key,
7945 .policy = nl80211_policy,
7946 .flags = GENL_ADMIN_PERM,
7947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7948 NL80211_FLAG_NEED_RTNL,
7951 .cmd = NL80211_CMD_DEL_KEY,
7952 .doit = nl80211_del_key,
7953 .policy = nl80211_policy,
7954 .flags = GENL_ADMIN_PERM,
7955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7956 NL80211_FLAG_NEED_RTNL,
7959 .cmd = NL80211_CMD_SET_BEACON,
7960 .policy = nl80211_policy,
7961 .flags = GENL_ADMIN_PERM,
7962 .doit = nl80211_set_beacon,
7963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7964 NL80211_FLAG_NEED_RTNL,
7967 .cmd = NL80211_CMD_START_AP,
7968 .policy = nl80211_policy,
7969 .flags = GENL_ADMIN_PERM,
7970 .doit = nl80211_start_ap,
7971 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7972 NL80211_FLAG_NEED_RTNL,
7975 .cmd = NL80211_CMD_STOP_AP,
7976 .policy = nl80211_policy,
7977 .flags = GENL_ADMIN_PERM,
7978 .doit = nl80211_stop_ap,
7979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7980 NL80211_FLAG_NEED_RTNL,
7983 .cmd = NL80211_CMD_GET_STATION,
7984 .doit = nl80211_get_station,
7985 .dumpit = nl80211_dump_station,
7986 .policy = nl80211_policy,
7987 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7988 NL80211_FLAG_NEED_RTNL,
7991 .cmd = NL80211_CMD_SET_STATION,
7992 .doit = nl80211_set_station,
7993 .policy = nl80211_policy,
7994 .flags = GENL_ADMIN_PERM,
7995 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7996 NL80211_FLAG_NEED_RTNL,
7999 .cmd = NL80211_CMD_NEW_STATION,
8000 .doit = nl80211_new_station,
8001 .policy = nl80211_policy,
8002 .flags = GENL_ADMIN_PERM,
8003 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8004 NL80211_FLAG_NEED_RTNL,
8007 .cmd = NL80211_CMD_DEL_STATION,
8008 .doit = nl80211_del_station,
8009 .policy = nl80211_policy,
8010 .flags = GENL_ADMIN_PERM,
8011 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8012 NL80211_FLAG_NEED_RTNL,
8015 .cmd = NL80211_CMD_GET_MPATH,
8016 .doit = nl80211_get_mpath,
8017 .dumpit = nl80211_dump_mpath,
8018 .policy = nl80211_policy,
8019 .flags = GENL_ADMIN_PERM,
8020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8021 NL80211_FLAG_NEED_RTNL,
8024 .cmd = NL80211_CMD_SET_MPATH,
8025 .doit = nl80211_set_mpath,
8026 .policy = nl80211_policy,
8027 .flags = GENL_ADMIN_PERM,
8028 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8029 NL80211_FLAG_NEED_RTNL,
8032 .cmd = NL80211_CMD_NEW_MPATH,
8033 .doit = nl80211_new_mpath,
8034 .policy = nl80211_policy,
8035 .flags = GENL_ADMIN_PERM,
8036 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8037 NL80211_FLAG_NEED_RTNL,
8040 .cmd = NL80211_CMD_DEL_MPATH,
8041 .doit = nl80211_del_mpath,
8042 .policy = nl80211_policy,
8043 .flags = GENL_ADMIN_PERM,
8044 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8045 NL80211_FLAG_NEED_RTNL,
8048 .cmd = NL80211_CMD_SET_BSS,
8049 .doit = nl80211_set_bss,
8050 .policy = nl80211_policy,
8051 .flags = GENL_ADMIN_PERM,
8052 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8053 NL80211_FLAG_NEED_RTNL,
8056 .cmd = NL80211_CMD_GET_REG,
8057 .doit = nl80211_get_reg,
8058 .policy = nl80211_policy,
8059 /* can be retrieved by unprivileged users */
8062 .cmd = NL80211_CMD_SET_REG,
8063 .doit = nl80211_set_reg,
8064 .policy = nl80211_policy,
8065 .flags = GENL_ADMIN_PERM,
8068 .cmd = NL80211_CMD_REQ_SET_REG,
8069 .doit = nl80211_req_set_reg,
8070 .policy = nl80211_policy,
8071 .flags = GENL_ADMIN_PERM,
8074 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8075 .doit = nl80211_get_mesh_config,
8076 .policy = nl80211_policy,
8077 /* can be retrieved by unprivileged users */
8078 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8079 NL80211_FLAG_NEED_RTNL,
8082 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8083 .doit = nl80211_update_mesh_config,
8084 .policy = nl80211_policy,
8085 .flags = GENL_ADMIN_PERM,
8086 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8087 NL80211_FLAG_NEED_RTNL,
8090 .cmd = NL80211_CMD_TRIGGER_SCAN,
8091 .doit = nl80211_trigger_scan,
8092 .policy = nl80211_policy,
8093 .flags = GENL_ADMIN_PERM,
8094 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8095 NL80211_FLAG_NEED_RTNL,
8098 .cmd = NL80211_CMD_GET_SCAN,
8099 .policy = nl80211_policy,
8100 .dumpit = nl80211_dump_scan,
8103 .cmd = NL80211_CMD_START_SCHED_SCAN,
8104 .doit = nl80211_start_sched_scan,
8105 .policy = nl80211_policy,
8106 .flags = GENL_ADMIN_PERM,
8107 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8108 NL80211_FLAG_NEED_RTNL,
8111 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8112 .doit = nl80211_stop_sched_scan,
8113 .policy = nl80211_policy,
8114 .flags = GENL_ADMIN_PERM,
8115 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8116 NL80211_FLAG_NEED_RTNL,
8119 .cmd = NL80211_CMD_AUTHENTICATE,
8120 .doit = nl80211_authenticate,
8121 .policy = nl80211_policy,
8122 .flags = GENL_ADMIN_PERM,
8123 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8124 NL80211_FLAG_NEED_RTNL,
8127 .cmd = NL80211_CMD_ASSOCIATE,
8128 .doit = nl80211_associate,
8129 .policy = nl80211_policy,
8130 .flags = GENL_ADMIN_PERM,
8131 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8132 NL80211_FLAG_NEED_RTNL,
8135 .cmd = NL80211_CMD_DEAUTHENTICATE,
8136 .doit = nl80211_deauthenticate,
8137 .policy = nl80211_policy,
8138 .flags = GENL_ADMIN_PERM,
8139 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8140 NL80211_FLAG_NEED_RTNL,
8143 .cmd = NL80211_CMD_DISASSOCIATE,
8144 .doit = nl80211_disassociate,
8145 .policy = nl80211_policy,
8146 .flags = GENL_ADMIN_PERM,
8147 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8148 NL80211_FLAG_NEED_RTNL,
8151 .cmd = NL80211_CMD_JOIN_IBSS,
8152 .doit = nl80211_join_ibss,
8153 .policy = nl80211_policy,
8154 .flags = GENL_ADMIN_PERM,
8155 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8156 NL80211_FLAG_NEED_RTNL,
8159 .cmd = NL80211_CMD_LEAVE_IBSS,
8160 .doit = nl80211_leave_ibss,
8161 .policy = nl80211_policy,
8162 .flags = GENL_ADMIN_PERM,
8163 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8164 NL80211_FLAG_NEED_RTNL,
8166 #ifdef CONFIG_NL80211_TESTMODE
8168 .cmd = NL80211_CMD_TESTMODE,
8169 .doit = nl80211_testmode_do,
8170 .dumpit = nl80211_testmode_dump,
8171 .policy = nl80211_policy,
8172 .flags = GENL_ADMIN_PERM,
8173 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8174 NL80211_FLAG_NEED_RTNL,
8178 .cmd = NL80211_CMD_CONNECT,
8179 .doit = nl80211_connect,
8180 .policy = nl80211_policy,
8181 .flags = GENL_ADMIN_PERM,
8182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8183 NL80211_FLAG_NEED_RTNL,
8186 .cmd = NL80211_CMD_DISCONNECT,
8187 .doit = nl80211_disconnect,
8188 .policy = nl80211_policy,
8189 .flags = GENL_ADMIN_PERM,
8190 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8191 NL80211_FLAG_NEED_RTNL,
8194 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8195 .doit = nl80211_wiphy_netns,
8196 .policy = nl80211_policy,
8197 .flags = GENL_ADMIN_PERM,
8198 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8199 NL80211_FLAG_NEED_RTNL,
8202 .cmd = NL80211_CMD_GET_SURVEY,
8203 .policy = nl80211_policy,
8204 .dumpit = nl80211_dump_survey,
8207 .cmd = NL80211_CMD_SET_PMKSA,
8208 .doit = nl80211_setdel_pmksa,
8209 .policy = nl80211_policy,
8210 .flags = GENL_ADMIN_PERM,
8211 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8212 NL80211_FLAG_NEED_RTNL,
8215 .cmd = NL80211_CMD_DEL_PMKSA,
8216 .doit = nl80211_setdel_pmksa,
8217 .policy = nl80211_policy,
8218 .flags = GENL_ADMIN_PERM,
8219 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8220 NL80211_FLAG_NEED_RTNL,
8223 .cmd = NL80211_CMD_FLUSH_PMKSA,
8224 .doit = nl80211_flush_pmksa,
8225 .policy = nl80211_policy,
8226 .flags = GENL_ADMIN_PERM,
8227 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8228 NL80211_FLAG_NEED_RTNL,
8231 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8232 .doit = nl80211_remain_on_channel,
8233 .policy = nl80211_policy,
8234 .flags = GENL_ADMIN_PERM,
8235 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8236 NL80211_FLAG_NEED_RTNL,
8239 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8240 .doit = nl80211_cancel_remain_on_channel,
8241 .policy = nl80211_policy,
8242 .flags = GENL_ADMIN_PERM,
8243 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8244 NL80211_FLAG_NEED_RTNL,
8247 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8248 .doit = nl80211_set_tx_bitrate_mask,
8249 .policy = nl80211_policy,
8250 .flags = GENL_ADMIN_PERM,
8251 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8252 NL80211_FLAG_NEED_RTNL,
8255 .cmd = NL80211_CMD_REGISTER_FRAME,
8256 .doit = nl80211_register_mgmt,
8257 .policy = nl80211_policy,
8258 .flags = GENL_ADMIN_PERM,
8259 .internal_flags = NL80211_FLAG_NEED_WDEV |
8260 NL80211_FLAG_NEED_RTNL,
8263 .cmd = NL80211_CMD_FRAME,
8264 .doit = nl80211_tx_mgmt,
8265 .policy = nl80211_policy,
8266 .flags = GENL_ADMIN_PERM,
8267 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8268 NL80211_FLAG_NEED_RTNL,
8271 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8272 .doit = nl80211_tx_mgmt_cancel_wait,
8273 .policy = nl80211_policy,
8274 .flags = GENL_ADMIN_PERM,
8275 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8276 NL80211_FLAG_NEED_RTNL,
8279 .cmd = NL80211_CMD_SET_POWER_SAVE,
8280 .doit = nl80211_set_power_save,
8281 .policy = nl80211_policy,
8282 .flags = GENL_ADMIN_PERM,
8283 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8284 NL80211_FLAG_NEED_RTNL,
8287 .cmd = NL80211_CMD_GET_POWER_SAVE,
8288 .doit = nl80211_get_power_save,
8289 .policy = nl80211_policy,
8290 /* can be retrieved by unprivileged users */
8291 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8292 NL80211_FLAG_NEED_RTNL,
8295 .cmd = NL80211_CMD_SET_CQM,
8296 .doit = nl80211_set_cqm,
8297 .policy = nl80211_policy,
8298 .flags = GENL_ADMIN_PERM,
8299 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8300 NL80211_FLAG_NEED_RTNL,
8303 .cmd = NL80211_CMD_SET_CHANNEL,
8304 .doit = nl80211_set_channel,
8305 .policy = nl80211_policy,
8306 .flags = GENL_ADMIN_PERM,
8307 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8308 NL80211_FLAG_NEED_RTNL,
8311 .cmd = NL80211_CMD_SET_WDS_PEER,
8312 .doit = nl80211_set_wds_peer,
8313 .policy = nl80211_policy,
8314 .flags = GENL_ADMIN_PERM,
8315 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8316 NL80211_FLAG_NEED_RTNL,
8319 .cmd = NL80211_CMD_JOIN_MESH,
8320 .doit = nl80211_join_mesh,
8321 .policy = nl80211_policy,
8322 .flags = GENL_ADMIN_PERM,
8323 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8324 NL80211_FLAG_NEED_RTNL,
8327 .cmd = NL80211_CMD_LEAVE_MESH,
8328 .doit = nl80211_leave_mesh,
8329 .policy = nl80211_policy,
8330 .flags = GENL_ADMIN_PERM,
8331 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8332 NL80211_FLAG_NEED_RTNL,
8336 .cmd = NL80211_CMD_GET_WOWLAN,
8337 .doit = nl80211_get_wowlan,
8338 .policy = nl80211_policy,
8339 /* can be retrieved by unprivileged users */
8340 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8341 NL80211_FLAG_NEED_RTNL,
8344 .cmd = NL80211_CMD_SET_WOWLAN,
8345 .doit = nl80211_set_wowlan,
8346 .policy = nl80211_policy,
8347 .flags = GENL_ADMIN_PERM,
8348 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8349 NL80211_FLAG_NEED_RTNL,
8353 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8354 .doit = nl80211_set_rekey_data,
8355 .policy = nl80211_policy,
8356 .flags = GENL_ADMIN_PERM,
8357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8358 NL80211_FLAG_NEED_RTNL,
8361 .cmd = NL80211_CMD_TDLS_MGMT,
8362 .doit = nl80211_tdls_mgmt,
8363 .policy = nl80211_policy,
8364 .flags = GENL_ADMIN_PERM,
8365 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8366 NL80211_FLAG_NEED_RTNL,
8369 .cmd = NL80211_CMD_TDLS_OPER,
8370 .doit = nl80211_tdls_oper,
8371 .policy = nl80211_policy,
8372 .flags = GENL_ADMIN_PERM,
8373 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8374 NL80211_FLAG_NEED_RTNL,
8377 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8378 .doit = nl80211_register_unexpected_frame,
8379 .policy = nl80211_policy,
8380 .flags = GENL_ADMIN_PERM,
8381 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8382 NL80211_FLAG_NEED_RTNL,
8385 .cmd = NL80211_CMD_PROBE_CLIENT,
8386 .doit = nl80211_probe_client,
8387 .policy = nl80211_policy,
8388 .flags = GENL_ADMIN_PERM,
8389 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8390 NL80211_FLAG_NEED_RTNL,
8393 .cmd = NL80211_CMD_REGISTER_BEACONS,
8394 .doit = nl80211_register_beacons,
8395 .policy = nl80211_policy,
8396 .flags = GENL_ADMIN_PERM,
8397 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8398 NL80211_FLAG_NEED_RTNL,
8401 .cmd = NL80211_CMD_SET_NOACK_MAP,
8402 .doit = nl80211_set_noack_map,
8403 .policy = nl80211_policy,
8404 .flags = GENL_ADMIN_PERM,
8405 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8406 NL80211_FLAG_NEED_RTNL,
8409 .cmd = NL80211_CMD_START_P2P_DEVICE,
8410 .doit = nl80211_start_p2p_device,
8411 .policy = nl80211_policy,
8412 .flags = GENL_ADMIN_PERM,
8413 .internal_flags = NL80211_FLAG_NEED_WDEV |
8414 NL80211_FLAG_NEED_RTNL,
8417 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8418 .doit = nl80211_stop_p2p_device,
8419 .policy = nl80211_policy,
8420 .flags = GENL_ADMIN_PERM,
8421 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8422 NL80211_FLAG_NEED_RTNL,
8425 .cmd = NL80211_CMD_SET_MCAST_RATE,
8426 .doit = nl80211_set_mcast_rate,
8427 .policy = nl80211_policy,
8428 .flags = GENL_ADMIN_PERM,
8429 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8430 NL80211_FLAG_NEED_RTNL,
8433 .cmd = NL80211_CMD_SET_MAC_ACL,
8434 .doit = nl80211_set_mac_acl,
8435 .policy = nl80211_policy,
8436 .flags = GENL_ADMIN_PERM,
8437 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8438 NL80211_FLAG_NEED_RTNL,
8441 .cmd = NL80211_CMD_RADAR_DETECT,
8442 .doit = nl80211_start_radar_detection,
8443 .policy = nl80211_policy,
8444 .flags = GENL_ADMIN_PERM,
8445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8446 NL80211_FLAG_NEED_RTNL,
8450 static struct genl_multicast_group nl80211_mlme_mcgrp = {
8454 /* multicast groups */
8455 static struct genl_multicast_group nl80211_config_mcgrp = {
8458 static struct genl_multicast_group nl80211_scan_mcgrp = {
8461 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8462 .name = "regulatory",
8465 /* notification functions */
8467 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8469 struct sk_buff *msg;
8471 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8475 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8480 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8481 nl80211_config_mcgrp.id, GFP_KERNEL);
8484 static int nl80211_add_scan_req(struct sk_buff *msg,
8485 struct cfg80211_registered_device *rdev)
8487 struct cfg80211_scan_request *req = rdev->scan_req;
8488 struct nlattr *nest;
8491 lockdep_assert_held(&rdev->sched_scan_mtx);
8496 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8498 goto nla_put_failure;
8499 for (i = 0; i < req->n_ssids; i++) {
8500 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8501 goto nla_put_failure;
8503 nla_nest_end(msg, nest);
8505 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8507 goto nla_put_failure;
8508 for (i = 0; i < req->n_channels; i++) {
8509 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8510 goto nla_put_failure;
8512 nla_nest_end(msg, nest);
8515 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8516 goto nla_put_failure;
8519 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8526 static int nl80211_send_scan_msg(struct sk_buff *msg,
8527 struct cfg80211_registered_device *rdev,
8528 struct wireless_dev *wdev,
8529 u32 portid, u32 seq, int flags,
8534 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8538 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8539 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8540 wdev->netdev->ifindex)) ||
8541 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
8542 goto nla_put_failure;
8544 /* ignore errors and send incomplete event anyway */
8545 nl80211_add_scan_req(msg, rdev);
8547 return genlmsg_end(msg, hdr);
8550 genlmsg_cancel(msg, hdr);
8555 nl80211_send_sched_scan_msg(struct sk_buff *msg,
8556 struct cfg80211_registered_device *rdev,
8557 struct net_device *netdev,
8558 u32 portid, u32 seq, int flags, u32 cmd)
8562 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8566 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8567 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8568 goto nla_put_failure;
8570 return genlmsg_end(msg, hdr);
8573 genlmsg_cancel(msg, hdr);
8577 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
8578 struct wireless_dev *wdev)
8580 struct sk_buff *msg;
8582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8586 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8587 NL80211_CMD_TRIGGER_SCAN) < 0) {
8592 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8593 nl80211_scan_mcgrp.id, GFP_KERNEL);
8596 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
8597 struct wireless_dev *wdev)
8599 struct sk_buff *msg;
8601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8605 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8606 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
8611 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8612 nl80211_scan_mcgrp.id, GFP_KERNEL);
8615 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
8616 struct wireless_dev *wdev)
8618 struct sk_buff *msg;
8620 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8624 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8625 NL80211_CMD_SCAN_ABORTED) < 0) {
8630 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8631 nl80211_scan_mcgrp.id, GFP_KERNEL);
8634 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8635 struct net_device *netdev)
8637 struct sk_buff *msg;
8639 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8643 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8644 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8649 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8650 nl80211_scan_mcgrp.id, GFP_KERNEL);
8653 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8654 struct net_device *netdev, u32 cmd)
8656 struct sk_buff *msg;
8658 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8662 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8667 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8668 nl80211_scan_mcgrp.id, GFP_KERNEL);
8672 * This can happen on global regulatory changes or device specific settings
8673 * based on custom world regulatory domains.
8675 void nl80211_send_reg_change_event(struct regulatory_request *request)
8677 struct sk_buff *msg;
8680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8690 /* Userspace can always count this one always being set */
8691 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8692 goto nla_put_failure;
8694 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8695 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8696 NL80211_REGDOM_TYPE_WORLD))
8697 goto nla_put_failure;
8698 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8699 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8700 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8701 goto nla_put_failure;
8702 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8703 request->intersect) {
8704 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8705 NL80211_REGDOM_TYPE_INTERSECTION))
8706 goto nla_put_failure;
8708 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8709 NL80211_REGDOM_TYPE_COUNTRY) ||
8710 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8712 goto nla_put_failure;
8715 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
8716 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8717 goto nla_put_failure;
8719 genlmsg_end(msg, hdr);
8722 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8729 genlmsg_cancel(msg, hdr);
8733 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8734 struct net_device *netdev,
8735 const u8 *buf, size_t len,
8736 enum nl80211_commands cmd, gfp_t gfp)
8738 struct sk_buff *msg;
8741 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8745 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8751 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8752 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8753 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8754 goto nla_put_failure;
8756 genlmsg_end(msg, hdr);
8758 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8759 nl80211_mlme_mcgrp.id, gfp);
8763 genlmsg_cancel(msg, hdr);
8767 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8768 struct net_device *netdev, const u8 *buf,
8769 size_t len, gfp_t gfp)
8771 nl80211_send_mlme_event(rdev, netdev, buf, len,
8772 NL80211_CMD_AUTHENTICATE, gfp);
8775 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8776 struct net_device *netdev, const u8 *buf,
8777 size_t len, gfp_t gfp)
8779 nl80211_send_mlme_event(rdev, netdev, buf, len,
8780 NL80211_CMD_ASSOCIATE, gfp);
8783 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8784 struct net_device *netdev, const u8 *buf,
8785 size_t len, gfp_t gfp)
8787 nl80211_send_mlme_event(rdev, netdev, buf, len,
8788 NL80211_CMD_DEAUTHENTICATE, gfp);
8791 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8792 struct net_device *netdev, const u8 *buf,
8793 size_t len, gfp_t gfp)
8795 nl80211_send_mlme_event(rdev, netdev, buf, len,
8796 NL80211_CMD_DISASSOCIATE, gfp);
8799 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8800 struct net_device *netdev, const u8 *buf,
8801 size_t len, gfp_t gfp)
8803 nl80211_send_mlme_event(rdev, netdev, buf, len,
8804 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8807 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8808 struct net_device *netdev, const u8 *buf,
8809 size_t len, gfp_t gfp)
8811 nl80211_send_mlme_event(rdev, netdev, buf, len,
8812 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8815 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8816 struct net_device *netdev, int cmd,
8817 const u8 *addr, gfp_t gfp)
8819 struct sk_buff *msg;
8822 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8826 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8832 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8833 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8834 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8835 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8836 goto nla_put_failure;
8838 genlmsg_end(msg, hdr);
8840 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8841 nl80211_mlme_mcgrp.id, gfp);
8845 genlmsg_cancel(msg, hdr);
8849 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8850 struct net_device *netdev, const u8 *addr,
8853 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8857 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8858 struct net_device *netdev, const u8 *addr,
8861 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8865 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8866 struct net_device *netdev, const u8 *bssid,
8867 const u8 *req_ie, size_t req_ie_len,
8868 const u8 *resp_ie, size_t resp_ie_len,
8869 u16 status, gfp_t gfp)
8871 struct sk_buff *msg;
8874 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8878 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8884 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8885 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8886 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8887 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8889 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8891 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8892 goto nla_put_failure;
8894 genlmsg_end(msg, hdr);
8896 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8897 nl80211_mlme_mcgrp.id, gfp);
8901 genlmsg_cancel(msg, hdr);
8906 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8907 struct net_device *netdev, const u8 *bssid,
8908 const u8 *req_ie, size_t req_ie_len,
8909 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8911 struct sk_buff *msg;
8914 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8918 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8924 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8925 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8926 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8928 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8930 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8931 goto nla_put_failure;
8933 genlmsg_end(msg, hdr);
8935 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8936 nl80211_mlme_mcgrp.id, gfp);
8940 genlmsg_cancel(msg, hdr);
8945 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8946 struct net_device *netdev, u16 reason,
8947 const u8 *ie, size_t ie_len, bool from_ap)
8949 struct sk_buff *msg;
8952 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8956 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
8962 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8963 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8964 (from_ap && reason &&
8965 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
8967 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
8968 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
8969 goto nla_put_failure;
8971 genlmsg_end(msg, hdr);
8973 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8974 nl80211_mlme_mcgrp.id, GFP_KERNEL);
8978 genlmsg_cancel(msg, hdr);
8983 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
8984 struct net_device *netdev, const u8 *bssid,
8987 struct sk_buff *msg;
8990 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8994 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9000 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9001 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9002 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9003 goto nla_put_failure;
9005 genlmsg_end(msg, hdr);
9007 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9008 nl80211_mlme_mcgrp.id, gfp);
9012 genlmsg_cancel(msg, hdr);
9016 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
9017 struct net_device *netdev,
9018 const u8 *macaddr, const u8* ie, u8 ie_len,
9021 struct sk_buff *msg;
9024 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9028 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9034 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9035 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9036 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
9038 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9039 goto nla_put_failure;
9041 genlmsg_end(msg, hdr);
9043 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9044 nl80211_mlme_mcgrp.id, gfp);
9048 genlmsg_cancel(msg, hdr);
9052 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9053 struct net_device *netdev, const u8 *addr,
9054 enum nl80211_key_type key_type, int key_id,
9055 const u8 *tsc, gfp_t gfp)
9057 struct sk_buff *msg;
9060 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9064 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9070 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9071 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9072 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9073 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9075 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9076 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9077 goto nla_put_failure;
9079 genlmsg_end(msg, hdr);
9081 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9082 nl80211_mlme_mcgrp.id, gfp);
9086 genlmsg_cancel(msg, hdr);
9090 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9091 struct ieee80211_channel *channel_before,
9092 struct ieee80211_channel *channel_after)
9094 struct sk_buff *msg;
9096 struct nlattr *nl_freq;
9098 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9102 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9109 * Since we are applying the beacon hint to a wiphy we know its
9110 * wiphy_idx is valid
9112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9113 goto nla_put_failure;
9116 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9118 goto nla_put_failure;
9119 if (nl80211_msg_put_channel(msg, channel_before))
9120 goto nla_put_failure;
9121 nla_nest_end(msg, nl_freq);
9124 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9126 goto nla_put_failure;
9127 if (nl80211_msg_put_channel(msg, channel_after))
9128 goto nla_put_failure;
9129 nla_nest_end(msg, nl_freq);
9131 genlmsg_end(msg, hdr);
9134 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9141 genlmsg_cancel(msg, hdr);
9145 static void nl80211_send_remain_on_chan_event(
9146 int cmd, struct cfg80211_registered_device *rdev,
9147 struct wireless_dev *wdev, u64 cookie,
9148 struct ieee80211_channel *chan,
9149 unsigned int duration, gfp_t gfp)
9151 struct sk_buff *msg;
9154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9158 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9164 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9165 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9166 wdev->netdev->ifindex)) ||
9167 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9168 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9169 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9170 NL80211_CHAN_NO_HT) ||
9171 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9172 goto nla_put_failure;
9174 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9175 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9176 goto nla_put_failure;
9178 genlmsg_end(msg, hdr);
9180 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9181 nl80211_mlme_mcgrp.id, gfp);
9185 genlmsg_cancel(msg, hdr);
9189 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
9190 struct wireless_dev *wdev, u64 cookie,
9191 struct ieee80211_channel *chan,
9192 unsigned int duration, gfp_t gfp)
9194 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9195 rdev, wdev, cookie, chan,
9199 void nl80211_send_remain_on_channel_cancel(
9200 struct cfg80211_registered_device *rdev,
9201 struct wireless_dev *wdev,
9202 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9204 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9205 rdev, wdev, cookie, chan, 0, gfp);
9208 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9209 struct net_device *dev, const u8 *mac_addr,
9210 struct station_info *sinfo, gfp_t gfp)
9212 struct sk_buff *msg;
9214 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9218 if (nl80211_send_station(msg, 0, 0, 0,
9219 rdev, dev, mac_addr, sinfo) < 0) {
9224 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9225 nl80211_mlme_mcgrp.id, gfp);
9228 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9229 struct net_device *dev, const u8 *mac_addr,
9232 struct sk_buff *msg;
9235 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9239 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9245 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9246 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9247 goto nla_put_failure;
9249 genlmsg_end(msg, hdr);
9251 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9252 nl80211_mlme_mcgrp.id, gfp);
9256 genlmsg_cancel(msg, hdr);
9260 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9261 struct net_device *dev, const u8 *mac_addr,
9262 enum nl80211_connect_failed_reason reason,
9265 struct sk_buff *msg;
9268 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9278 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9279 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9280 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9281 goto nla_put_failure;
9283 genlmsg_end(msg, hdr);
9285 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9286 nl80211_mlme_mcgrp.id, gfp);
9290 genlmsg_cancel(msg, hdr);
9294 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9295 const u8 *addr, gfp_t gfp)
9297 struct wireless_dev *wdev = dev->ieee80211_ptr;
9298 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9299 struct sk_buff *msg;
9302 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9307 msg = nlmsg_new(100, gfp);
9311 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9317 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9318 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9319 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9320 goto nla_put_failure;
9322 err = genlmsg_end(msg, hdr);
9328 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9332 genlmsg_cancel(msg, hdr);
9337 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9339 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9343 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9344 const u8 *addr, gfp_t gfp)
9346 return __nl80211_unexpected_frame(dev,
9347 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9351 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9352 struct wireless_dev *wdev, u32 nlportid,
9353 int freq, int sig_dbm,
9354 const u8 *buf, size_t len, gfp_t gfp)
9356 struct net_device *netdev = wdev->netdev;
9357 struct sk_buff *msg;
9360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9371 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9372 netdev->ifindex)) ||
9373 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9375 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9376 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9377 goto nla_put_failure;
9379 genlmsg_end(msg, hdr);
9381 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9384 genlmsg_cancel(msg, hdr);
9389 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
9390 struct wireless_dev *wdev, u64 cookie,
9391 const u8 *buf, size_t len, bool ack,
9394 struct net_device *netdev = wdev->netdev;
9395 struct sk_buff *msg;
9398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
9408 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9409 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9410 netdev->ifindex)) ||
9411 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9412 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9413 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9414 goto nla_put_failure;
9416 genlmsg_end(msg, hdr);
9418 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9422 genlmsg_cancel(msg, hdr);
9427 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9428 struct net_device *netdev,
9429 enum nl80211_cqm_rssi_threshold_event rssi_event,
9432 struct sk_buff *msg;
9433 struct nlattr *pinfoattr;
9436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9440 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9446 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9447 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9448 goto nla_put_failure;
9450 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9452 goto nla_put_failure;
9454 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9456 goto nla_put_failure;
9458 nla_nest_end(msg, pinfoattr);
9460 genlmsg_end(msg, hdr);
9462 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9463 nl80211_mlme_mcgrp.id, gfp);
9467 genlmsg_cancel(msg, hdr);
9471 void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9472 struct net_device *netdev, const u8 *bssid,
9473 const u8 *replay_ctr, gfp_t gfp)
9475 struct sk_buff *msg;
9476 struct nlattr *rekey_attr;
9479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9483 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9489 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9490 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9491 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9492 goto nla_put_failure;
9494 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9496 goto nla_put_failure;
9498 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9499 NL80211_REPLAY_CTR_LEN, replay_ctr))
9500 goto nla_put_failure;
9502 nla_nest_end(msg, rekey_attr);
9504 genlmsg_end(msg, hdr);
9506 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9507 nl80211_mlme_mcgrp.id, gfp);
9511 genlmsg_cancel(msg, hdr);
9515 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9516 struct net_device *netdev, int index,
9517 const u8 *bssid, bool preauth, gfp_t gfp)
9519 struct sk_buff *msg;
9520 struct nlattr *attr;
9523 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9527 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9533 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9534 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9535 goto nla_put_failure;
9537 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9539 goto nla_put_failure;
9541 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9542 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9544 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9545 goto nla_put_failure;
9547 nla_nest_end(msg, attr);
9549 genlmsg_end(msg, hdr);
9551 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9552 nl80211_mlme_mcgrp.id, gfp);
9556 genlmsg_cancel(msg, hdr);
9560 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
9561 struct net_device *netdev,
9562 struct cfg80211_chan_def *chandef, gfp_t gfp)
9564 struct sk_buff *msg;
9567 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9571 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9577 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9578 goto nla_put_failure;
9580 if (nl80211_send_chandef(msg, chandef))
9581 goto nla_put_failure;
9583 genlmsg_end(msg, hdr);
9585 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9586 nl80211_mlme_mcgrp.id, gfp);
9590 genlmsg_cancel(msg, hdr);
9595 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9596 struct net_device *netdev, const u8 *peer,
9597 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9599 struct sk_buff *msg;
9600 struct nlattr *pinfoattr;
9603 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9614 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9615 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9616 goto nla_put_failure;
9618 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9620 goto nla_put_failure;
9622 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9623 goto nla_put_failure;
9625 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9626 goto nla_put_failure;
9628 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9629 goto nla_put_failure;
9631 nla_nest_end(msg, pinfoattr);
9633 genlmsg_end(msg, hdr);
9635 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9636 nl80211_mlme_mcgrp.id, gfp);
9640 genlmsg_cancel(msg, hdr);
9645 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9646 struct cfg80211_chan_def *chandef,
9647 enum nl80211_radar_event event,
9648 struct net_device *netdev, gfp_t gfp)
9650 struct sk_buff *msg;
9653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9657 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9663 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9664 goto nla_put_failure;
9666 /* NOP and radar events don't need a netdev parameter */
9668 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9670 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9671 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9672 goto nla_put_failure;
9675 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9676 goto nla_put_failure;
9678 if (nl80211_send_chandef(msg, chandef))
9679 goto nla_put_failure;
9681 if (genlmsg_end(msg, hdr) < 0) {
9686 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9687 nl80211_mlme_mcgrp.id, gfp);
9691 genlmsg_cancel(msg, hdr);
9696 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9697 struct net_device *netdev, const u8 *peer,
9698 u32 num_packets, gfp_t gfp)
9700 struct sk_buff *msg;
9701 struct nlattr *pinfoattr;
9704 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9708 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9714 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9715 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9716 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9717 goto nla_put_failure;
9719 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9721 goto nla_put_failure;
9723 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9724 goto nla_put_failure;
9726 nla_nest_end(msg, pinfoattr);
9728 genlmsg_end(msg, hdr);
9730 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9731 nl80211_mlme_mcgrp.id, gfp);
9735 genlmsg_cancel(msg, hdr);
9739 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9740 u64 cookie, bool acked, gfp_t gfp)
9742 struct wireless_dev *wdev = dev->ieee80211_ptr;
9743 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9744 struct sk_buff *msg;
9748 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9750 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9755 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9761 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9762 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9763 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9764 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9765 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9766 goto nla_put_failure;
9768 err = genlmsg_end(msg, hdr);
9774 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9775 nl80211_mlme_mcgrp.id, gfp);
9779 genlmsg_cancel(msg, hdr);
9782 EXPORT_SYMBOL(cfg80211_probe_status);
9784 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9785 const u8 *frame, size_t len,
9786 int freq, int sig_dbm)
9788 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9789 struct sk_buff *msg;
9791 struct cfg80211_beacon_registration *reg;
9793 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9795 spin_lock_bh(&rdev->beacon_registrations_lock);
9796 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9797 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9799 spin_unlock_bh(&rdev->beacon_registrations_lock);
9803 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9805 goto nla_put_failure;
9807 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9809 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9811 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9812 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9813 goto nla_put_failure;
9815 genlmsg_end(msg, hdr);
9817 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9819 spin_unlock_bh(&rdev->beacon_registrations_lock);
9823 spin_unlock_bh(&rdev->beacon_registrations_lock);
9825 genlmsg_cancel(msg, hdr);
9828 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9831 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9832 struct cfg80211_wowlan_wakeup *wakeup,
9835 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9836 struct sk_buff *msg;
9838 int err, size = 200;
9840 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9843 size += wakeup->packet_present_len;
9845 msg = nlmsg_new(size, gfp);
9849 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9853 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9854 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9857 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9858 wdev->netdev->ifindex))
9862 struct nlattr *reasons;
9864 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9866 if (wakeup->disconnect &&
9867 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9869 if (wakeup->magic_pkt &&
9870 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9872 if (wakeup->gtk_rekey_failure &&
9873 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9875 if (wakeup->eap_identity_req &&
9876 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9878 if (wakeup->four_way_handshake &&
9879 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9881 if (wakeup->rfkill_release &&
9882 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9885 if (wakeup->pattern_idx >= 0 &&
9886 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9887 wakeup->pattern_idx))
9890 if (wakeup->tcp_match)
9891 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9893 if (wakeup->tcp_connlost)
9895 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9897 if (wakeup->tcp_nomoretokens)
9899 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9901 if (wakeup->packet) {
9902 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9903 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9905 if (!wakeup->packet_80211) {
9907 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9909 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9912 if (wakeup->packet_len &&
9913 nla_put_u32(msg, len_attr, wakeup->packet_len))
9916 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9921 nla_nest_end(msg, reasons);
9924 err = genlmsg_end(msg, hdr);
9928 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9929 nl80211_mlme_mcgrp.id, gfp);
9935 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9938 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9939 enum nl80211_tdls_operation oper,
9940 u16 reason_code, gfp_t gfp)
9942 struct wireless_dev *wdev = dev->ieee80211_ptr;
9943 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9944 struct sk_buff *msg;
9948 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9955 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
9961 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9962 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9963 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
9964 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
9966 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
9967 goto nla_put_failure;
9969 err = genlmsg_end(msg, hdr);
9975 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9976 nl80211_mlme_mcgrp.id, gfp);
9980 genlmsg_cancel(msg, hdr);
9983 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
9985 static int nl80211_netlink_notify(struct notifier_block * nb,
9986 unsigned long state,
9989 struct netlink_notify *notify = _notify;
9990 struct cfg80211_registered_device *rdev;
9991 struct wireless_dev *wdev;
9992 struct cfg80211_beacon_registration *reg, *tmp;
9994 if (state != NETLINK_URELEASE)
9999 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
10000 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
10001 cfg80211_mlme_unregister_socket(wdev, notify->portid);
10003 spin_lock_bh(&rdev->beacon_registrations_lock);
10004 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10006 if (reg->nlportid == notify->portid) {
10007 list_del(®->list);
10012 spin_unlock_bh(&rdev->beacon_registrations_lock);
10017 return NOTIFY_DONE;
10020 static struct notifier_block nl80211_netlink_notifier = {
10021 .notifier_call = nl80211_netlink_notify,
10024 /* initialisation/exit functions */
10026 int nl80211_init(void)
10030 err = genl_register_family_with_ops(&nl80211_fam,
10031 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10035 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10039 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10043 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10047 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10051 #ifdef CONFIG_NL80211_TESTMODE
10052 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10057 err = netlink_register_notifier(&nl80211_netlink_notifier);
10063 genl_unregister_family(&nl80211_fam);
10067 void nl80211_exit(void)
10069 netlink_unregister_notifier(&nl80211_netlink_notifier);
10070 genl_unregister_family(&nl80211_fam);