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;
560 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
565 goto nla_put_failure;
566 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
567 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
568 goto nla_put_failure;
569 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
570 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
571 goto nla_put_failure;
573 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
574 DBM_TO_MBM(chan->max_power)))
575 goto nla_put_failure;
583 /* netlink command implementations */
590 bool def_uni, def_multi;
593 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
595 struct nlattr *tb[NL80211_KEY_MAX + 1];
596 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
601 k->def = !!tb[NL80211_KEY_DEFAULT];
602 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
611 if (tb[NL80211_KEY_IDX])
612 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
614 if (tb[NL80211_KEY_DATA]) {
615 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
616 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
619 if (tb[NL80211_KEY_SEQ]) {
620 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
621 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
624 if (tb[NL80211_KEY_CIPHER])
625 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
627 if (tb[NL80211_KEY_TYPE]) {
628 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
629 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
633 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
634 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
635 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
636 tb[NL80211_KEY_DEFAULT_TYPES],
637 nl80211_key_default_policy);
641 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
642 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
648 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
650 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
651 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
652 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
655 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
656 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
657 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
660 if (info->attrs[NL80211_ATTR_KEY_IDX])
661 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
663 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
664 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
666 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
667 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
676 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
677 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
678 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
682 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
683 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
684 int err = nla_parse_nested(
685 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
686 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
687 nl80211_key_default_policy);
691 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
692 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
698 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
702 memset(k, 0, sizeof(*k));
706 if (info->attrs[NL80211_ATTR_KEY])
707 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
709 err = nl80211_parse_key_old(info, k);
714 if (k->def && k->defmgmt)
718 if (k->def_uni || !k->def_multi)
724 if (k->idx < 4 || k->idx > 5)
727 if (k->idx < 0 || k->idx > 3)
730 if (k->idx < 0 || k->idx > 5)
738 static struct cfg80211_cached_keys *
739 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
740 struct nlattr *keys, bool *no_ht)
742 struct key_parse parse;
744 struct cfg80211_cached_keys *result;
745 int rem, err, def = 0;
747 result = kzalloc(sizeof(*result), GFP_KERNEL);
749 return ERR_PTR(-ENOMEM);
752 result->defmgmt = -1;
754 nla_for_each_nested(key, keys, rem) {
755 memset(&parse, 0, sizeof(parse));
758 err = nl80211_parse_key_new(key, &parse);
764 if (parse.idx < 0 || parse.idx > 4)
770 result->def = parse.idx;
771 if (!parse.def_uni || !parse.def_multi)
773 } else if (parse.defmgmt)
775 err = cfg80211_validate_key_settings(rdev, &parse.p,
776 parse.idx, false, NULL);
779 result->params[parse.idx].cipher = parse.p.cipher;
780 result->params[parse.idx].key_len = parse.p.key_len;
781 result->params[parse.idx].key = result->data[parse.idx];
782 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
784 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
785 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
797 static int nl80211_key_allowed(struct wireless_dev *wdev)
799 ASSERT_WDEV_LOCK(wdev);
801 switch (wdev->iftype) {
802 case NL80211_IFTYPE_AP:
803 case NL80211_IFTYPE_AP_VLAN:
804 case NL80211_IFTYPE_P2P_GO:
805 case NL80211_IFTYPE_MESH_POINT:
807 case NL80211_IFTYPE_ADHOC:
808 if (!wdev->current_bss)
811 case NL80211_IFTYPE_STATION:
812 case NL80211_IFTYPE_P2P_CLIENT:
813 if (wdev->sme_state != CFG80211_SME_CONNECTED)
823 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
825 struct nlattr *nl_modes = nla_nest_start(msg, attr);
829 goto nla_put_failure;
833 if ((ifmodes & 1) && nla_put_flag(msg, i))
834 goto nla_put_failure;
839 nla_nest_end(msg, nl_modes);
846 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
849 struct nlattr *nl_combis;
852 nl_combis = nla_nest_start(msg,
853 NL80211_ATTR_INTERFACE_COMBINATIONS);
855 goto nla_put_failure;
857 for (i = 0; i < wiphy->n_iface_combinations; i++) {
858 const struct ieee80211_iface_combination *c;
859 struct nlattr *nl_combi, *nl_limits;
861 c = &wiphy->iface_combinations[i];
863 nl_combi = nla_nest_start(msg, i + 1);
865 goto nla_put_failure;
867 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
869 goto nla_put_failure;
871 for (j = 0; j < c->n_limits; j++) {
872 struct nlattr *nl_limit;
874 nl_limit = nla_nest_start(msg, j + 1);
876 goto nla_put_failure;
877 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
879 goto nla_put_failure;
880 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
882 goto nla_put_failure;
883 nla_nest_end(msg, nl_limit);
886 nla_nest_end(msg, nl_limits);
888 if (c->beacon_int_infra_match &&
889 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
890 goto nla_put_failure;
891 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
892 c->num_different_channels) ||
893 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
895 goto nla_put_failure;
897 nla_nest_end(msg, nl_combi);
900 nla_nest_end(msg, nl_combis);
908 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
911 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp;
912 struct nlattr *nl_tcp;
917 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
921 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
922 tcp->data_payload_max))
925 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
926 tcp->data_payload_max))
929 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
932 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
933 sizeof(*tcp->tok), tcp->tok))
936 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
937 tcp->data_interval_max))
940 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
941 tcp->wake_payload_max))
944 nla_nest_end(msg, nl_tcp);
949 static int nl80211_send_wiphy(struct sk_buff *msg, u32 portid, u32 seq, int flags,
950 struct cfg80211_registered_device *dev)
953 struct nlattr *nl_bands, *nl_band;
954 struct nlattr *nl_freqs, *nl_freq;
955 struct nlattr *nl_rates, *nl_rate;
956 struct nlattr *nl_cmds;
957 enum ieee80211_band band;
958 struct ieee80211_channel *chan;
959 struct ieee80211_rate *rate;
961 const struct ieee80211_txrx_stypes *mgmt_stypes =
962 dev->wiphy.mgmt_stypes;
964 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
968 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
969 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy)) ||
970 nla_put_u32(msg, NL80211_ATTR_GENERATION,
971 cfg80211_rdev_list_generation) ||
972 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
973 dev->wiphy.retry_short) ||
974 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
975 dev->wiphy.retry_long) ||
976 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
977 dev->wiphy.frag_threshold) ||
978 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
979 dev->wiphy.rts_threshold) ||
980 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
981 dev->wiphy.coverage_class) ||
982 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
983 dev->wiphy.max_scan_ssids) ||
984 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
985 dev->wiphy.max_sched_scan_ssids) ||
986 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
987 dev->wiphy.max_scan_ie_len) ||
988 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
989 dev->wiphy.max_sched_scan_ie_len) ||
990 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
991 dev->wiphy.max_match_sets))
992 goto nla_put_failure;
994 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
995 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
996 goto nla_put_failure;
997 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
998 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
999 goto nla_put_failure;
1000 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1001 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1002 goto nla_put_failure;
1003 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1004 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1005 goto nla_put_failure;
1006 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1007 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1008 goto nla_put_failure;
1009 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1010 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1011 goto nla_put_failure;
1013 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1014 sizeof(u32) * dev->wiphy.n_cipher_suites,
1015 dev->wiphy.cipher_suites))
1016 goto nla_put_failure;
1018 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1019 dev->wiphy.max_num_pmkids))
1020 goto nla_put_failure;
1022 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1023 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1024 goto nla_put_failure;
1026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1027 dev->wiphy.available_antennas_tx) ||
1028 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1029 dev->wiphy.available_antennas_rx))
1030 goto nla_put_failure;
1032 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1033 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1034 dev->wiphy.probe_resp_offload))
1035 goto nla_put_failure;
1037 if ((dev->wiphy.available_antennas_tx ||
1038 dev->wiphy.available_antennas_rx) && dev->ops->get_antenna) {
1039 u32 tx_ant = 0, rx_ant = 0;
1041 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1043 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_TX,
1045 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_RX,
1047 goto nla_put_failure;
1051 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1052 dev->wiphy.interface_modes))
1053 goto nla_put_failure;
1055 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1057 goto nla_put_failure;
1059 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1060 if (!dev->wiphy.bands[band])
1063 nl_band = nla_nest_start(msg, band);
1065 goto nla_put_failure;
1068 if (dev->wiphy.bands[band]->ht_cap.ht_supported &&
1069 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1070 sizeof(dev->wiphy.bands[band]->ht_cap.mcs),
1071 &dev->wiphy.bands[band]->ht_cap.mcs) ||
1072 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1073 dev->wiphy.bands[band]->ht_cap.cap) ||
1074 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1075 dev->wiphy.bands[band]->ht_cap.ampdu_factor) ||
1076 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1077 dev->wiphy.bands[band]->ht_cap.ampdu_density)))
1078 goto nla_put_failure;
1081 if (dev->wiphy.bands[band]->vht_cap.vht_supported &&
1082 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1083 sizeof(dev->wiphy.bands[band]->vht_cap.vht_mcs),
1084 &dev->wiphy.bands[band]->vht_cap.vht_mcs) ||
1085 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1086 dev->wiphy.bands[band]->vht_cap.cap)))
1087 goto nla_put_failure;
1089 /* add frequencies */
1090 nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
1092 goto nla_put_failure;
1094 for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
1095 nl_freq = nla_nest_start(msg, i);
1097 goto nla_put_failure;
1099 chan = &dev->wiphy.bands[band]->channels[i];
1101 if (nl80211_msg_put_channel(msg, chan))
1102 goto nla_put_failure;
1104 nla_nest_end(msg, nl_freq);
1107 nla_nest_end(msg, nl_freqs);
1110 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1112 goto nla_put_failure;
1114 for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
1115 nl_rate = nla_nest_start(msg, i);
1117 goto nla_put_failure;
1119 rate = &dev->wiphy.bands[band]->bitrates[i];
1120 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1122 goto nla_put_failure;
1123 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1125 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1126 goto nla_put_failure;
1128 nla_nest_end(msg, nl_rate);
1131 nla_nest_end(msg, nl_rates);
1133 nla_nest_end(msg, nl_band);
1135 nla_nest_end(msg, nl_bands);
1137 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1139 goto nla_put_failure;
1142 #define CMD(op, n) \
1144 if (dev->ops->op) { \
1146 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1147 goto nla_put_failure; \
1151 CMD(add_virtual_intf, NEW_INTERFACE);
1152 CMD(change_virtual_intf, SET_INTERFACE);
1153 CMD(add_key, NEW_KEY);
1154 CMD(start_ap, START_AP);
1155 CMD(add_station, NEW_STATION);
1156 CMD(add_mpath, NEW_MPATH);
1157 CMD(update_mesh_config, SET_MESH_CONFIG);
1158 CMD(change_bss, SET_BSS);
1159 CMD(auth, AUTHENTICATE);
1160 CMD(assoc, ASSOCIATE);
1161 CMD(deauth, DEAUTHENTICATE);
1162 CMD(disassoc, DISASSOCIATE);
1163 CMD(join_ibss, JOIN_IBSS);
1164 CMD(join_mesh, JOIN_MESH);
1165 CMD(set_pmksa, SET_PMKSA);
1166 CMD(del_pmksa, DEL_PMKSA);
1167 CMD(flush_pmksa, FLUSH_PMKSA);
1168 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1169 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1170 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1171 CMD(mgmt_tx, FRAME);
1172 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1173 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1175 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1176 goto nla_put_failure;
1178 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1179 dev->ops->join_mesh) {
1181 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1182 goto nla_put_failure;
1184 CMD(set_wds_peer, SET_WDS_PEER);
1185 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1186 CMD(tdls_mgmt, TDLS_MGMT);
1187 CMD(tdls_oper, TDLS_OPER);
1189 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1190 CMD(sched_scan_start, START_SCHED_SCAN);
1191 CMD(probe_client, PROBE_CLIENT);
1192 CMD(set_noack_map, SET_NOACK_MAP);
1193 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1195 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1196 goto nla_put_failure;
1198 CMD(start_p2p_device, START_P2P_DEVICE);
1199 CMD(set_mcast_rate, SET_MCAST_RATE);
1201 #ifdef CONFIG_NL80211_TESTMODE
1202 CMD(testmode_cmd, TESTMODE);
1207 if (dev->ops->connect || dev->ops->auth) {
1209 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1210 goto nla_put_failure;
1213 if (dev->ops->disconnect || dev->ops->deauth) {
1215 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1216 goto nla_put_failure;
1219 nla_nest_end(msg, nl_cmds);
1221 if (dev->ops->remain_on_channel &&
1222 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1223 nla_put_u32(msg, NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1224 dev->wiphy.max_remain_on_channel_duration))
1225 goto nla_put_failure;
1227 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1228 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1229 goto nla_put_failure;
1233 struct nlattr *nl_ftypes, *nl_ifs;
1234 enum nl80211_iftype ift;
1236 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1238 goto nla_put_failure;
1240 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1241 nl_ftypes = nla_nest_start(msg, ift);
1243 goto nla_put_failure;
1245 stypes = mgmt_stypes[ift].tx;
1248 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1249 (i << 4) | IEEE80211_FTYPE_MGMT))
1250 goto nla_put_failure;
1254 nla_nest_end(msg, nl_ftypes);
1257 nla_nest_end(msg, nl_ifs);
1259 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1261 goto nla_put_failure;
1263 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1264 nl_ftypes = nla_nest_start(msg, ift);
1266 goto nla_put_failure;
1268 stypes = mgmt_stypes[ift].rx;
1271 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1272 (i << 4) | IEEE80211_FTYPE_MGMT))
1273 goto nla_put_failure;
1277 nla_nest_end(msg, nl_ftypes);
1279 nla_nest_end(msg, nl_ifs);
1283 if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
1284 struct nlattr *nl_wowlan;
1286 nl_wowlan = nla_nest_start(msg,
1287 NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1289 goto nla_put_failure;
1291 if (((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY) &&
1292 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1293 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT) &&
1294 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1295 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1296 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1297 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1299 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1301 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1303 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1305 ((dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1307 goto nla_put_failure;
1308 if (dev->wiphy.wowlan.n_patterns) {
1309 struct nl80211_wowlan_pattern_support pat = {
1310 .max_patterns = dev->wiphy.wowlan.n_patterns,
1312 dev->wiphy.wowlan.pattern_min_len,
1314 dev->wiphy.wowlan.pattern_max_len,
1316 dev->wiphy.wowlan.max_pkt_offset,
1318 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1320 goto nla_put_failure;
1323 if (nl80211_send_wowlan_tcp_caps(dev, msg))
1324 goto nla_put_failure;
1326 nla_nest_end(msg, nl_wowlan);
1330 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1331 dev->wiphy.software_iftypes))
1332 goto nla_put_failure;
1334 if (nl80211_put_iface_combinations(&dev->wiphy, msg))
1335 goto nla_put_failure;
1337 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1338 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1339 dev->wiphy.ap_sme_capa))
1340 goto nla_put_failure;
1342 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS,
1343 dev->wiphy.features))
1344 goto nla_put_failure;
1346 if (dev->wiphy.ht_capa_mod_mask &&
1347 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1348 sizeof(*dev->wiphy.ht_capa_mod_mask),
1349 dev->wiphy.ht_capa_mod_mask))
1350 goto nla_put_failure;
1352 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1353 dev->wiphy.max_acl_mac_addrs &&
1354 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1355 dev->wiphy.max_acl_mac_addrs))
1356 goto nla_put_failure;
1358 if (dev->wiphy.extended_capabilities &&
1359 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1360 dev->wiphy.extended_capabilities_len,
1361 dev->wiphy.extended_capabilities) ||
1362 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1363 dev->wiphy.extended_capabilities_len,
1364 dev->wiphy.extended_capabilities_mask)))
1365 goto nla_put_failure;
1367 return genlmsg_end(msg, hdr);
1370 genlmsg_cancel(msg, hdr);
1374 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1377 int start = cb->args[0];
1378 struct cfg80211_registered_device *dev;
1380 mutex_lock(&cfg80211_mutex);
1381 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1382 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1386 if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).portid,
1387 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1393 mutex_unlock(&cfg80211_mutex);
1400 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1402 struct sk_buff *msg;
1403 struct cfg80211_registered_device *dev = info->user_ptr[0];
1405 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
1409 if (nl80211_send_wiphy(msg, info->snd_portid, info->snd_seq, 0, dev) < 0) {
1414 return genlmsg_reply(msg, info);
1417 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1418 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1419 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1420 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1421 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1422 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1425 static int parse_txq_params(struct nlattr *tb[],
1426 struct ieee80211_txq_params *txq_params)
1428 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1429 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1430 !tb[NL80211_TXQ_ATTR_AIFS])
1433 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1434 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1435 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1436 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1437 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1439 if (txq_params->ac >= NL80211_NUM_ACS)
1445 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1448 * You can only set the channel explicitly for WDS interfaces,
1449 * all others have their channel managed via their respective
1450 * "establish a connection" command (connect, join, ...)
1452 * For AP/GO and mesh mode, the channel can be set with the
1453 * channel userspace API, but is only stored and passed to the
1454 * low-level driver when the AP starts or the mesh is joined.
1455 * This is for backward compatibility, userspace can also give
1456 * the channel in the start-ap or join-mesh commands instead.
1458 * Monitors are special as they are normally slaved to
1459 * whatever else is going on, so they have their own special
1460 * operation to set the monitor channel if possible.
1463 wdev->iftype == NL80211_IFTYPE_AP ||
1464 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1465 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1466 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1469 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1470 struct genl_info *info,
1471 struct cfg80211_chan_def *chandef)
1475 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1478 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1480 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1481 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1482 chandef->center_freq1 = control_freq;
1483 chandef->center_freq2 = 0;
1485 /* Primary channel not allowed */
1486 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1489 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1490 enum nl80211_channel_type chantype;
1492 chantype = nla_get_u32(
1493 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1496 case NL80211_CHAN_NO_HT:
1497 case NL80211_CHAN_HT20:
1498 case NL80211_CHAN_HT40PLUS:
1499 case NL80211_CHAN_HT40MINUS:
1500 cfg80211_chandef_create(chandef, chandef->chan,
1506 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1508 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1509 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1510 chandef->center_freq1 =
1512 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1513 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1514 chandef->center_freq2 =
1516 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1519 if (!cfg80211_chandef_valid(chandef))
1522 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1523 IEEE80211_CHAN_DISABLED))
1529 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1530 struct wireless_dev *wdev,
1531 struct genl_info *info)
1533 struct cfg80211_chan_def chandef;
1535 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1538 iftype = wdev->iftype;
1540 if (!nl80211_can_set_dev_channel(wdev))
1543 result = nl80211_parse_chandef(rdev, info, &chandef);
1547 mutex_lock(&rdev->devlist_mtx);
1549 case NL80211_IFTYPE_AP:
1550 case NL80211_IFTYPE_P2P_GO:
1551 if (wdev->beacon_interval) {
1555 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1559 wdev->preset_chandef = chandef;
1562 case NL80211_IFTYPE_MESH_POINT:
1563 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1565 case NL80211_IFTYPE_MONITOR:
1566 result = cfg80211_set_monitor_channel(rdev, &chandef);
1571 mutex_unlock(&rdev->devlist_mtx);
1576 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1578 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1579 struct net_device *netdev = info->user_ptr[1];
1581 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1584 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1587 struct net_device *dev = info->user_ptr[1];
1588 struct wireless_dev *wdev = dev->ieee80211_ptr;
1591 if (!info->attrs[NL80211_ATTR_MAC])
1594 if (netif_running(dev))
1597 if (!rdev->ops->set_wds_peer)
1600 if (wdev->iftype != NL80211_IFTYPE_WDS)
1603 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1604 return rdev_set_wds_peer(rdev, dev, bssid);
1608 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1610 struct cfg80211_registered_device *rdev;
1611 struct net_device *netdev = NULL;
1612 struct wireless_dev *wdev;
1613 int result = 0, rem_txq_params = 0;
1614 struct nlattr *nl_txq_params;
1616 u8 retry_short = 0, retry_long = 0;
1617 u32 frag_threshold = 0, rts_threshold = 0;
1618 u8 coverage_class = 0;
1621 * Try to find the wiphy and netdev. Normally this
1622 * function shouldn't need the netdev, but this is
1623 * done for backward compatibility -- previously
1624 * setting the channel was done per wiphy, but now
1625 * it is per netdev. Previous userland like hostapd
1626 * also passed a netdev to set_wiphy, so that it is
1627 * possible to let that go to the right netdev!
1629 mutex_lock(&cfg80211_mutex);
1631 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1632 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1634 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1635 if (netdev && netdev->ieee80211_ptr) {
1636 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1637 mutex_lock(&rdev->mtx);
1643 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1646 mutex_unlock(&cfg80211_mutex);
1647 return PTR_ERR(rdev);
1653 mutex_lock(&rdev->mtx);
1655 wdev = netdev->ieee80211_ptr;
1658 * end workaround code, by now the rdev is available
1659 * and locked, and wdev may or may not be NULL.
1662 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1663 result = cfg80211_dev_rename(
1664 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1666 mutex_unlock(&cfg80211_mutex);
1671 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1672 struct ieee80211_txq_params txq_params;
1673 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1675 if (!rdev->ops->set_txq_params) {
1676 result = -EOPNOTSUPP;
1685 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1686 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1691 if (!netif_running(netdev)) {
1696 nla_for_each_nested(nl_txq_params,
1697 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1699 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1700 nla_data(nl_txq_params),
1701 nla_len(nl_txq_params),
1703 result = parse_txq_params(tb, &txq_params);
1707 result = rdev_set_txq_params(rdev, netdev,
1714 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1715 result = __nl80211_set_channel(rdev,
1716 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1722 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1723 struct wireless_dev *txp_wdev = wdev;
1724 enum nl80211_tx_power_setting type;
1727 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1730 if (!rdev->ops->set_tx_power) {
1731 result = -EOPNOTSUPP;
1735 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1736 type = nla_get_u32(info->attrs[idx]);
1738 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1739 (type != NL80211_TX_POWER_AUTOMATIC)) {
1744 if (type != NL80211_TX_POWER_AUTOMATIC) {
1745 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1746 mbm = nla_get_u32(info->attrs[idx]);
1749 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1754 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1755 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1757 if ((!rdev->wiphy.available_antennas_tx &&
1758 !rdev->wiphy.available_antennas_rx) ||
1759 !rdev->ops->set_antenna) {
1760 result = -EOPNOTSUPP;
1764 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1765 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1767 /* reject antenna configurations which don't match the
1768 * available antenna masks, except for the "all" mask */
1769 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1770 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1775 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1776 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1778 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1785 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1786 retry_short = nla_get_u8(
1787 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1788 if (retry_short == 0) {
1792 changed |= WIPHY_PARAM_RETRY_SHORT;
1795 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1796 retry_long = nla_get_u8(
1797 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1798 if (retry_long == 0) {
1802 changed |= WIPHY_PARAM_RETRY_LONG;
1805 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
1806 frag_threshold = nla_get_u32(
1807 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
1808 if (frag_threshold < 256) {
1812 if (frag_threshold != (u32) -1) {
1814 * Fragments (apart from the last one) are required to
1815 * have even length. Make the fragmentation code
1816 * simpler by stripping LSB should someone try to use
1817 * odd threshold value.
1819 frag_threshold &= ~0x1;
1821 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
1824 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
1825 rts_threshold = nla_get_u32(
1826 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
1827 changed |= WIPHY_PARAM_RTS_THRESHOLD;
1830 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
1831 coverage_class = nla_get_u8(
1832 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
1833 changed |= WIPHY_PARAM_COVERAGE_CLASS;
1837 u8 old_retry_short, old_retry_long;
1838 u32 old_frag_threshold, old_rts_threshold;
1839 u8 old_coverage_class;
1841 if (!rdev->ops->set_wiphy_params) {
1842 result = -EOPNOTSUPP;
1846 old_retry_short = rdev->wiphy.retry_short;
1847 old_retry_long = rdev->wiphy.retry_long;
1848 old_frag_threshold = rdev->wiphy.frag_threshold;
1849 old_rts_threshold = rdev->wiphy.rts_threshold;
1850 old_coverage_class = rdev->wiphy.coverage_class;
1852 if (changed & WIPHY_PARAM_RETRY_SHORT)
1853 rdev->wiphy.retry_short = retry_short;
1854 if (changed & WIPHY_PARAM_RETRY_LONG)
1855 rdev->wiphy.retry_long = retry_long;
1856 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
1857 rdev->wiphy.frag_threshold = frag_threshold;
1858 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
1859 rdev->wiphy.rts_threshold = rts_threshold;
1860 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
1861 rdev->wiphy.coverage_class = coverage_class;
1863 result = rdev_set_wiphy_params(rdev, changed);
1865 rdev->wiphy.retry_short = old_retry_short;
1866 rdev->wiphy.retry_long = old_retry_long;
1867 rdev->wiphy.frag_threshold = old_frag_threshold;
1868 rdev->wiphy.rts_threshold = old_rts_threshold;
1869 rdev->wiphy.coverage_class = old_coverage_class;
1874 mutex_unlock(&rdev->mtx);
1880 static inline u64 wdev_id(struct wireless_dev *wdev)
1882 return (u64)wdev->identifier |
1883 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
1886 static int nl80211_send_chandef(struct sk_buff *msg,
1887 struct cfg80211_chan_def *chandef)
1889 WARN_ON(!cfg80211_chandef_valid(chandef));
1891 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
1892 chandef->chan->center_freq))
1894 switch (chandef->width) {
1895 case NL80211_CHAN_WIDTH_20_NOHT:
1896 case NL80211_CHAN_WIDTH_20:
1897 case NL80211_CHAN_WIDTH_40:
1898 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
1899 cfg80211_get_chandef_type(chandef)))
1905 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
1907 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
1909 if (chandef->center_freq2 &&
1910 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
1915 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
1916 struct cfg80211_registered_device *rdev,
1917 struct wireless_dev *wdev)
1919 struct net_device *dev = wdev->netdev;
1922 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
1927 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
1928 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
1929 goto nla_put_failure;
1931 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1932 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
1933 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
1934 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
1935 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1936 rdev->devlist_generation ^
1937 (cfg80211_rdev_list_generation << 2)))
1938 goto nla_put_failure;
1940 if (rdev->ops->get_channel) {
1942 struct cfg80211_chan_def chandef;
1944 ret = rdev_get_channel(rdev, wdev, &chandef);
1946 if (nl80211_send_chandef(msg, &chandef))
1947 goto nla_put_failure;
1951 if (wdev->ssid_len) {
1952 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
1953 goto nla_put_failure;
1956 return genlmsg_end(msg, hdr);
1959 genlmsg_cancel(msg, hdr);
1963 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
1967 int wp_start = cb->args[0];
1968 int if_start = cb->args[1];
1969 struct cfg80211_registered_device *rdev;
1970 struct wireless_dev *wdev;
1972 mutex_lock(&cfg80211_mutex);
1973 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1974 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1976 if (wp_idx < wp_start) {
1982 mutex_lock(&rdev->devlist_mtx);
1983 list_for_each_entry(wdev, &rdev->wdev_list, list) {
1984 if (if_idx < if_start) {
1988 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
1989 cb->nlh->nlmsg_seq, NLM_F_MULTI,
1991 mutex_unlock(&rdev->devlist_mtx);
1996 mutex_unlock(&rdev->devlist_mtx);
2001 mutex_unlock(&cfg80211_mutex);
2003 cb->args[0] = wp_idx;
2004 cb->args[1] = if_idx;
2009 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2011 struct sk_buff *msg;
2012 struct cfg80211_registered_device *dev = info->user_ptr[0];
2013 struct wireless_dev *wdev = info->user_ptr[1];
2015 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2019 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2025 return genlmsg_reply(msg, info);
2028 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2029 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2030 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2031 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2032 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2033 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2036 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2038 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2046 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2047 nla, mntr_flags_policy))
2050 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2052 *mntrflags |= (1<<flag);
2057 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2058 struct net_device *netdev, u8 use_4addr,
2059 enum nl80211_iftype iftype)
2062 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2068 case NL80211_IFTYPE_AP_VLAN:
2069 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2072 case NL80211_IFTYPE_STATION:
2073 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2083 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2085 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2086 struct vif_params params;
2088 enum nl80211_iftype otype, ntype;
2089 struct net_device *dev = info->user_ptr[1];
2090 u32 _flags, *flags = NULL;
2091 bool change = false;
2093 memset(¶ms, 0, sizeof(params));
2095 otype = ntype = dev->ieee80211_ptr->iftype;
2097 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2098 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2101 if (ntype > NL80211_IFTYPE_MAX)
2105 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2106 struct wireless_dev *wdev = dev->ieee80211_ptr;
2108 if (ntype != NL80211_IFTYPE_MESH_POINT)
2110 if (netif_running(dev))
2114 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2115 IEEE80211_MAX_MESH_ID_LEN);
2116 wdev->mesh_id_up_len =
2117 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2118 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2119 wdev->mesh_id_up_len);
2123 if (info->attrs[NL80211_ATTR_4ADDR]) {
2124 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2126 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2130 params.use_4addr = -1;
2133 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2134 if (ntype != NL80211_IFTYPE_MONITOR)
2136 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2146 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2150 if (!err && params.use_4addr != -1)
2151 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2156 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2159 struct vif_params params;
2160 struct wireless_dev *wdev;
2161 struct sk_buff *msg;
2163 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2166 memset(¶ms, 0, sizeof(params));
2168 if (!info->attrs[NL80211_ATTR_IFNAME])
2171 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2172 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2173 if (type > NL80211_IFTYPE_MAX)
2177 if (!rdev->ops->add_virtual_intf ||
2178 !(rdev->wiphy.interface_modes & (1 << type)))
2181 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2182 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2184 if (!is_valid_ether_addr(params.macaddr))
2185 return -EADDRNOTAVAIL;
2188 if (info->attrs[NL80211_ATTR_4ADDR]) {
2189 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2190 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2199 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2200 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2202 wdev = rdev_add_virtual_intf(rdev,
2203 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2204 type, err ? NULL : &flags, ¶ms);
2207 return PTR_ERR(wdev);
2211 case NL80211_IFTYPE_MESH_POINT:
2212 if (!info->attrs[NL80211_ATTR_MESH_ID])
2215 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2216 IEEE80211_MAX_MESH_ID_LEN);
2217 wdev->mesh_id_up_len =
2218 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2219 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2220 wdev->mesh_id_up_len);
2223 case NL80211_IFTYPE_P2P_DEVICE:
2225 * P2P Device doesn't have a netdev, so doesn't go
2226 * through the netdev notifier and must be added here
2228 mutex_init(&wdev->mtx);
2229 INIT_LIST_HEAD(&wdev->event_list);
2230 spin_lock_init(&wdev->event_lock);
2231 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2232 spin_lock_init(&wdev->mgmt_registrations_lock);
2234 mutex_lock(&rdev->devlist_mtx);
2235 wdev->identifier = ++rdev->wdev_id;
2236 list_add_rcu(&wdev->list, &rdev->wdev_list);
2237 rdev->devlist_generation++;
2238 mutex_unlock(&rdev->devlist_mtx);
2244 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2250 return genlmsg_reply(msg, info);
2253 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2256 struct wireless_dev *wdev = info->user_ptr[1];
2258 if (!rdev->ops->del_virtual_intf)
2262 * If we remove a wireless device without a netdev then clear
2263 * user_ptr[1] so that nl80211_post_doit won't dereference it
2264 * to check if it needs to do dev_put(). Otherwise it crashes
2265 * since the wdev has been freed, unlike with a netdev where
2266 * we need the dev_put() for the netdev to really be freed.
2269 info->user_ptr[1] = NULL;
2271 return rdev_del_virtual_intf(rdev, wdev);
2274 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2276 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2277 struct net_device *dev = info->user_ptr[1];
2280 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2283 if (!rdev->ops->set_noack_map)
2286 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2288 return rdev_set_noack_map(rdev, dev, noack_map);
2291 struct get_key_cookie {
2292 struct sk_buff *msg;
2297 static void get_key_callback(void *c, struct key_params *params)
2300 struct get_key_cookie *cookie = c;
2303 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2304 params->key_len, params->key)) ||
2306 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2307 params->seq_len, params->seq)) ||
2309 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2311 goto nla_put_failure;
2313 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2315 goto nla_put_failure;
2318 nla_put(cookie->msg, NL80211_KEY_DATA,
2319 params->key_len, params->key)) ||
2321 nla_put(cookie->msg, NL80211_KEY_SEQ,
2322 params->seq_len, params->seq)) ||
2324 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2326 goto nla_put_failure;
2328 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2329 goto nla_put_failure;
2331 nla_nest_end(cookie->msg, key);
2338 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2342 struct net_device *dev = info->user_ptr[1];
2344 const u8 *mac_addr = NULL;
2346 struct get_key_cookie cookie = {
2350 struct sk_buff *msg;
2352 if (info->attrs[NL80211_ATTR_KEY_IDX])
2353 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2358 if (info->attrs[NL80211_ATTR_MAC])
2359 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2361 pairwise = !!mac_addr;
2362 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2363 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2364 if (kt >= NUM_NL80211_KEYTYPES)
2366 if (kt != NL80211_KEYTYPE_GROUP &&
2367 kt != NL80211_KEYTYPE_PAIRWISE)
2369 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2372 if (!rdev->ops->get_key)
2375 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2379 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2380 NL80211_CMD_NEW_KEY);
2382 return PTR_ERR(hdr);
2385 cookie.idx = key_idx;
2387 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2388 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2389 goto nla_put_failure;
2391 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2392 goto nla_put_failure;
2394 if (pairwise && mac_addr &&
2395 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2398 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2405 goto nla_put_failure;
2407 genlmsg_end(msg, hdr);
2408 return genlmsg_reply(msg, info);
2417 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2420 struct key_parse key;
2422 struct net_device *dev = info->user_ptr[1];
2424 err = nl80211_parse_key(info, &key);
2431 /* only support setting default key */
2432 if (!key.def && !key.defmgmt)
2435 wdev_lock(dev->ieee80211_ptr);
2438 if (!rdev->ops->set_default_key) {
2443 err = nl80211_key_allowed(dev->ieee80211_ptr);
2447 err = rdev_set_default_key(rdev, dev, key.idx,
2448 key.def_uni, key.def_multi);
2453 #ifdef CONFIG_CFG80211_WEXT
2454 dev->ieee80211_ptr->wext.default_key = key.idx;
2457 if (key.def_uni || !key.def_multi) {
2462 if (!rdev->ops->set_default_mgmt_key) {
2467 err = nl80211_key_allowed(dev->ieee80211_ptr);
2471 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2475 #ifdef CONFIG_CFG80211_WEXT
2476 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2481 wdev_unlock(dev->ieee80211_ptr);
2486 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2490 struct net_device *dev = info->user_ptr[1];
2491 struct key_parse key;
2492 const u8 *mac_addr = NULL;
2494 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->add_key)
2519 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2520 key.type == NL80211_KEYTYPE_PAIRWISE,
2524 wdev_lock(dev->ieee80211_ptr);
2525 err = nl80211_key_allowed(dev->ieee80211_ptr);
2527 err = rdev_add_key(rdev, dev, key.idx,
2528 key.type == NL80211_KEYTYPE_PAIRWISE,
2530 wdev_unlock(dev->ieee80211_ptr);
2535 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2539 struct net_device *dev = info->user_ptr[1];
2540 u8 *mac_addr = NULL;
2541 struct key_parse key;
2543 err = nl80211_parse_key(info, &key);
2547 if (info->attrs[NL80211_ATTR_MAC])
2548 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2550 if (key.type == -1) {
2552 key.type = NL80211_KEYTYPE_PAIRWISE;
2554 key.type = NL80211_KEYTYPE_GROUP;
2558 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2559 key.type != NL80211_KEYTYPE_GROUP)
2562 if (!rdev->ops->del_key)
2565 wdev_lock(dev->ieee80211_ptr);
2566 err = nl80211_key_allowed(dev->ieee80211_ptr);
2568 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2569 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2573 err = rdev_del_key(rdev, dev, key.idx,
2574 key.type == NL80211_KEYTYPE_PAIRWISE,
2577 #ifdef CONFIG_CFG80211_WEXT
2579 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2580 dev->ieee80211_ptr->wext.default_key = -1;
2581 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2582 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2585 wdev_unlock(dev->ieee80211_ptr);
2590 /* This function returns an error or the number of nested attributes */
2591 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2593 struct nlattr *attr;
2594 int n_entries = 0, tmp;
2596 nla_for_each_nested(attr, nl_attr, tmp) {
2597 if (nla_len(attr) != ETH_ALEN)
2607 * This function parses ACL information and allocates memory for ACL data.
2608 * On successful return, the calling function is responsible to free the
2609 * ACL buffer returned by this function.
2611 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2612 struct genl_info *info)
2614 enum nl80211_acl_policy acl_policy;
2615 struct nlattr *attr;
2616 struct cfg80211_acl_data *acl;
2617 int i = 0, n_entries, tmp;
2619 if (!wiphy->max_acl_mac_addrs)
2620 return ERR_PTR(-EOPNOTSUPP);
2622 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2623 return ERR_PTR(-EINVAL);
2625 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2626 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2627 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2628 return ERR_PTR(-EINVAL);
2630 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2631 return ERR_PTR(-EINVAL);
2633 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2635 return ERR_PTR(n_entries);
2637 if (n_entries > wiphy->max_acl_mac_addrs)
2638 return ERR_PTR(-ENOTSUPP);
2640 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2643 return ERR_PTR(-ENOMEM);
2645 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2646 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2650 acl->n_acl_entries = n_entries;
2651 acl->acl_policy = acl_policy;
2656 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2658 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2659 struct net_device *dev = info->user_ptr[1];
2660 struct cfg80211_acl_data *acl;
2663 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2664 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2667 if (!dev->ieee80211_ptr->beacon_interval)
2670 acl = parse_acl_data(&rdev->wiphy, info);
2672 return PTR_ERR(acl);
2674 err = rdev_set_mac_acl(rdev, dev, acl);
2681 static int nl80211_parse_beacon(struct genl_info *info,
2682 struct cfg80211_beacon_data *bcn)
2684 bool haveinfo = false;
2686 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2687 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2688 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2689 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2692 memset(bcn, 0, sizeof(*bcn));
2694 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2695 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2696 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2702 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2703 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2705 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2712 if (info->attrs[NL80211_ATTR_IE]) {
2713 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2714 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2717 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2718 bcn->proberesp_ies =
2719 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2720 bcn->proberesp_ies_len =
2721 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2724 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2725 bcn->assocresp_ies =
2726 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2727 bcn->assocresp_ies_len =
2728 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2731 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2733 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2734 bcn->probe_resp_len =
2735 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2741 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2742 struct cfg80211_ap_settings *params)
2744 struct wireless_dev *wdev;
2747 mutex_lock(&rdev->devlist_mtx);
2749 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2750 if (wdev->iftype != NL80211_IFTYPE_AP &&
2751 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2754 if (!wdev->preset_chandef.chan)
2757 params->chandef = wdev->preset_chandef;
2762 mutex_unlock(&rdev->devlist_mtx);
2767 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2768 enum nl80211_auth_type auth_type,
2769 enum nl80211_commands cmd)
2771 if (auth_type > NL80211_AUTHTYPE_MAX)
2775 case NL80211_CMD_AUTHENTICATE:
2776 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2777 auth_type == NL80211_AUTHTYPE_SAE)
2780 case NL80211_CMD_CONNECT:
2781 case NL80211_CMD_START_AP:
2782 /* SAE not supported yet */
2783 if (auth_type == NL80211_AUTHTYPE_SAE)
2791 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2793 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2794 struct net_device *dev = info->user_ptr[1];
2795 struct wireless_dev *wdev = dev->ieee80211_ptr;
2796 struct cfg80211_ap_settings params;
2798 u8 radar_detect_width = 0;
2800 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2801 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2804 if (!rdev->ops->start_ap)
2807 if (wdev->beacon_interval)
2810 memset(¶ms, 0, sizeof(params));
2812 /* these are required for START_AP */
2813 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
2814 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
2815 !info->attrs[NL80211_ATTR_BEACON_HEAD])
2818 err = nl80211_parse_beacon(info, ¶ms.beacon);
2822 params.beacon_interval =
2823 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
2824 params.dtim_period =
2825 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
2827 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
2832 * In theory, some of these attributes should be required here
2833 * but since they were not used when the command was originally
2834 * added, keep them optional for old user space programs to let
2835 * them continue to work with drivers that do not need the
2836 * additional information -- drivers must check!
2838 if (info->attrs[NL80211_ATTR_SSID]) {
2839 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
2841 nla_len(info->attrs[NL80211_ATTR_SSID]);
2842 if (params.ssid_len == 0 ||
2843 params.ssid_len > IEEE80211_MAX_SSID_LEN)
2847 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
2848 params.hidden_ssid = nla_get_u32(
2849 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
2850 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
2851 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
2852 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
2856 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
2858 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
2859 params.auth_type = nla_get_u32(
2860 info->attrs[NL80211_ATTR_AUTH_TYPE]);
2861 if (!nl80211_valid_auth_type(rdev, params.auth_type,
2862 NL80211_CMD_START_AP))
2865 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
2867 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
2868 NL80211_MAX_NR_CIPHER_SUITES);
2872 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
2873 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
2875 params.inactivity_timeout = nla_get_u16(
2876 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
2879 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
2880 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2882 params.p2p_ctwindow =
2883 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
2884 if (params.p2p_ctwindow > 127)
2886 if (params.p2p_ctwindow != 0 &&
2887 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
2891 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
2894 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2896 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
2899 params.p2p_opp_ps = tmp;
2900 if (params.p2p_opp_ps != 0 &&
2901 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
2905 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2906 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
2909 } else if (wdev->preset_chandef.chan) {
2910 params.chandef = wdev->preset_chandef;
2911 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
2914 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
2917 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
2921 radar_detect_width = BIT(params.chandef.width);
2922 params.radar_required = true;
2925 mutex_lock(&rdev->devlist_mtx);
2926 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
2927 params.chandef.chan,
2929 radar_detect_width);
2930 mutex_unlock(&rdev->devlist_mtx);
2935 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
2936 params.acl = parse_acl_data(&rdev->wiphy, info);
2937 if (IS_ERR(params.acl))
2938 return PTR_ERR(params.acl);
2941 err = rdev_start_ap(rdev, dev, ¶ms);
2943 wdev->preset_chandef = params.chandef;
2944 wdev->beacon_interval = params.beacon_interval;
2945 wdev->channel = params.chandef.chan;
2946 wdev->ssid_len = params.ssid_len;
2947 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
2955 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
2957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2958 struct net_device *dev = info->user_ptr[1];
2959 struct wireless_dev *wdev = dev->ieee80211_ptr;
2960 struct cfg80211_beacon_data params;
2963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2967 if (!rdev->ops->change_beacon)
2970 if (!wdev->beacon_interval)
2973 err = nl80211_parse_beacon(info, ¶ms);
2977 return rdev_change_beacon(rdev, dev, ¶ms);
2980 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
2982 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2983 struct net_device *dev = info->user_ptr[1];
2985 return cfg80211_stop_ap(rdev, dev);
2988 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
2989 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
2990 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
2991 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
2992 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
2993 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
2994 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
2997 static int parse_station_flags(struct genl_info *info,
2998 enum nl80211_iftype iftype,
2999 struct station_parameters *params)
3001 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3006 * Try parsing the new attribute first so userspace
3007 * can specify both for older kernels.
3009 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3011 struct nl80211_sta_flag_update *sta_flags;
3013 sta_flags = nla_data(nla);
3014 params->sta_flags_mask = sta_flags->mask;
3015 params->sta_flags_set = sta_flags->set;
3016 if ((params->sta_flags_mask |
3017 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3022 /* if present, parse the old attribute */
3024 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3028 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3029 nla, sta_flags_policy))
3033 * Only allow certain flags for interface types so that
3034 * other attributes are silently ignored. Remember that
3035 * this is backward compatibility code with old userspace
3036 * and shouldn't be hit in other cases anyway.
3039 case NL80211_IFTYPE_AP:
3040 case NL80211_IFTYPE_AP_VLAN:
3041 case NL80211_IFTYPE_P2P_GO:
3042 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3043 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3044 BIT(NL80211_STA_FLAG_WME) |
3045 BIT(NL80211_STA_FLAG_MFP);
3047 case NL80211_IFTYPE_P2P_CLIENT:
3048 case NL80211_IFTYPE_STATION:
3049 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3050 BIT(NL80211_STA_FLAG_TDLS_PEER);
3052 case NL80211_IFTYPE_MESH_POINT:
3053 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3054 BIT(NL80211_STA_FLAG_MFP) |
3055 BIT(NL80211_STA_FLAG_AUTHORIZED);
3060 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3062 params->sta_flags_set |= (1<<flag);
3064 /* no longer support new API additions in old API */
3065 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3073 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3076 struct nlattr *rate;
3080 rate = nla_nest_start(msg, attr);
3084 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3085 bitrate = cfg80211_calculate_bitrate(info);
3086 /* report 16-bit bitrate only if we can */
3087 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3089 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3091 if (bitrate_compat > 0 &&
3092 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3095 if (info->flags & RATE_INFO_FLAGS_MCS) {
3096 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3098 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3099 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3101 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3102 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3104 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3105 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3107 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3109 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3110 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3112 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3113 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3115 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3116 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3118 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3119 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3121 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3122 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3126 nla_nest_end(msg, rate);
3130 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3132 struct cfg80211_registered_device *rdev,
3133 struct net_device *dev,
3134 const u8 *mac_addr, struct station_info *sinfo)
3137 struct nlattr *sinfoattr, *bss_param;
3139 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3143 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3144 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3145 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3146 goto nla_put_failure;
3148 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3150 goto nla_put_failure;
3151 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3152 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3153 sinfo->connected_time))
3154 goto nla_put_failure;
3155 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3156 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3157 sinfo->inactive_time))
3158 goto nla_put_failure;
3159 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3160 STATION_INFO_RX_BYTES64)) &&
3161 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3162 (u32)sinfo->rx_bytes))
3163 goto nla_put_failure;
3164 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3165 NL80211_STA_INFO_TX_BYTES64)) &&
3166 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3167 (u32)sinfo->tx_bytes))
3168 goto nla_put_failure;
3169 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3170 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3172 goto nla_put_failure;
3173 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3174 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3176 goto nla_put_failure;
3177 if ((sinfo->filled & STATION_INFO_LLID) &&
3178 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3179 goto nla_put_failure;
3180 if ((sinfo->filled & STATION_INFO_PLID) &&
3181 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3182 goto nla_put_failure;
3183 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3184 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3185 sinfo->plink_state))
3186 goto nla_put_failure;
3187 switch (rdev->wiphy.signal_type) {
3188 case CFG80211_SIGNAL_TYPE_MBM:
3189 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3190 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3192 goto nla_put_failure;
3193 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3194 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3196 goto nla_put_failure;
3201 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3202 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3203 NL80211_STA_INFO_TX_BITRATE))
3204 goto nla_put_failure;
3206 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3207 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3208 NL80211_STA_INFO_RX_BITRATE))
3209 goto nla_put_failure;
3211 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3212 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3214 goto nla_put_failure;
3215 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3216 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3218 goto nla_put_failure;
3219 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3220 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3222 goto nla_put_failure;
3223 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3224 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3226 goto nla_put_failure;
3227 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3228 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3229 sinfo->beacon_loss_count))
3230 goto nla_put_failure;
3231 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3232 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3234 goto nla_put_failure;
3235 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3236 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3238 goto nla_put_failure;
3239 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3240 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3242 goto nla_put_failure;
3243 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3244 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3246 goto nla_put_failure;
3248 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3249 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3250 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3251 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3252 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3253 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3254 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3255 sinfo->bss_param.dtim_period) ||
3256 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3257 sinfo->bss_param.beacon_interval))
3258 goto nla_put_failure;
3260 nla_nest_end(msg, bss_param);
3262 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3263 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3264 sizeof(struct nl80211_sta_flag_update),
3266 goto nla_put_failure;
3267 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3268 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3270 goto nla_put_failure;
3271 nla_nest_end(msg, sinfoattr);
3273 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3274 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3275 sinfo->assoc_req_ies))
3276 goto nla_put_failure;
3278 return genlmsg_end(msg, hdr);
3281 genlmsg_cancel(msg, hdr);
3285 static int nl80211_dump_station(struct sk_buff *skb,
3286 struct netlink_callback *cb)
3288 struct station_info sinfo;
3289 struct cfg80211_registered_device *dev;
3290 struct net_device *netdev;
3291 u8 mac_addr[ETH_ALEN];
3292 int sta_idx = cb->args[1];
3295 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3299 if (!dev->ops->dump_station) {
3305 memset(&sinfo, 0, sizeof(sinfo));
3306 err = rdev_dump_station(dev, netdev, sta_idx,
3313 if (nl80211_send_station(skb,
3314 NETLINK_CB(cb->skb).portid,
3315 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3316 dev, netdev, mac_addr,
3325 cb->args[1] = sta_idx;
3328 nl80211_finish_netdev_dump(dev);
3333 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3335 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3336 struct net_device *dev = info->user_ptr[1];
3337 struct station_info sinfo;
3338 struct sk_buff *msg;
3339 u8 *mac_addr = NULL;
3342 memset(&sinfo, 0, sizeof(sinfo));
3344 if (!info->attrs[NL80211_ATTR_MAC])
3347 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3349 if (!rdev->ops->get_station)
3352 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3356 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3360 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3361 rdev, dev, mac_addr, &sinfo) < 0) {
3366 return genlmsg_reply(msg, info);
3370 * Get vlan interface making sure it is running and on the right wiphy.
3372 static struct net_device *get_vlan(struct genl_info *info,
3373 struct cfg80211_registered_device *rdev)
3375 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3376 struct net_device *v;
3382 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3384 return ERR_PTR(-ENODEV);
3386 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3391 if (!netif_running(v)) {
3399 return ERR_PTR(ret);
3402 static struct nla_policy
3403 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3404 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3405 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3408 static int nl80211_set_station_tdls(struct genl_info *info,
3409 struct station_parameters *params)
3411 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3415 /* Dummy STA entry gets updated once the peer capabilities are known */
3416 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3418 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3419 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3421 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3423 /* parse WME attributes if present */
3424 if (!info->attrs[NL80211_ATTR_STA_WME])
3427 nla = info->attrs[NL80211_ATTR_STA_WME];
3428 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3429 nl80211_sta_wme_policy);
3433 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3434 params->uapsd_queues = nla_get_u8(
3435 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3436 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3439 if (tb[NL80211_STA_WME_MAX_SP])
3440 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3442 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3445 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3450 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3452 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3454 struct net_device *dev = info->user_ptr[1];
3455 struct station_parameters params;
3456 u8 *mac_addr = NULL;
3458 memset(¶ms, 0, sizeof(params));
3460 params.listen_interval = -1;
3461 params.plink_state = -1;
3463 if (info->attrs[NL80211_ATTR_STA_AID])
3466 if (!info->attrs[NL80211_ATTR_MAC])
3469 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3471 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3472 params.supported_rates =
3473 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3474 params.supported_rates_len =
3475 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3478 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3480 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3481 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3484 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3486 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3487 params.ext_capab_len =
3488 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3491 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3494 if (!rdev->ops->change_station)
3497 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3500 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3501 params.plink_action =
3502 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3504 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
3505 params.plink_state =
3506 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3508 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3509 enum nl80211_mesh_power_mode pm = nla_get_u32(
3510 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3512 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3513 pm > NL80211_MESH_POWER_MAX)
3516 params.local_pm = pm;
3519 switch (dev->ieee80211_ptr->iftype) {
3520 case NL80211_IFTYPE_AP:
3521 case NL80211_IFTYPE_AP_VLAN:
3522 case NL80211_IFTYPE_P2P_GO:
3523 /* disallow mesh-specific things */
3524 if (params.plink_action)
3526 if (params.local_pm)
3529 /* TDLS can't be set, ... */
3530 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3533 * ... but don't bother the driver with it. This works around
3534 * a hostapd/wpa_supplicant issue -- it always includes the
3535 * TLDS_PEER flag in the mask even for AP mode.
3537 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3539 /* accept only the listed bits */
3540 if (params.sta_flags_mask &
3541 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3542 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3543 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3544 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3545 BIT(NL80211_STA_FLAG_WME) |
3546 BIT(NL80211_STA_FLAG_MFP)))
3549 /* but authenticated/associated only if driver handles it */
3550 if (!(rdev->wiphy.features &
3551 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3552 params.sta_flags_mask &
3553 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3554 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3557 /* reject other things that can't change */
3558 if (params.supported_rates)
3560 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3562 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3564 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3565 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3568 /* must be last in here for error handling */
3569 params.vlan = get_vlan(info, rdev);
3570 if (IS_ERR(params.vlan))
3571 return PTR_ERR(params.vlan);
3573 case NL80211_IFTYPE_P2P_CLIENT:
3574 case NL80211_IFTYPE_STATION:
3576 * Don't allow userspace to change the TDLS_PEER flag,
3577 * but silently ignore attempts to change it since we
3578 * don't have state here to verify that it doesn't try
3579 * to change the flag.
3581 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3582 /* Include parameters for TDLS peer (driver will check) */
3583 err = nl80211_set_station_tdls(info, ¶ms);
3586 /* disallow things sta doesn't support */
3587 if (params.plink_action)
3589 if (params.local_pm)
3591 /* reject any changes other than AUTHORIZED or WME (for TDLS) */
3592 if (params.sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3593 BIT(NL80211_STA_FLAG_WME)))
3596 case NL80211_IFTYPE_ADHOC:
3597 /* disallow things sta doesn't support */
3598 if (params.plink_action)
3600 if (params.local_pm)
3602 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3603 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3605 /* reject any changes other than AUTHORIZED */
3606 if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3609 case NL80211_IFTYPE_MESH_POINT:
3610 /* disallow things mesh doesn't support */
3613 if (params.supported_rates)
3615 if (info->attrs[NL80211_ATTR_STA_CAPABILITY])
3617 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY])
3619 if (info->attrs[NL80211_ATTR_HT_CAPABILITY] ||
3620 info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3623 * No special handling for TDLS here -- the userspace
3624 * mesh code doesn't have this bug.
3626 if (params.sta_flags_mask &
3627 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3628 BIT(NL80211_STA_FLAG_MFP) |
3629 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3636 /* be aware of params.vlan when changing code here */
3638 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3641 dev_put(params.vlan);
3646 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3650 struct net_device *dev = info->user_ptr[1];
3651 struct station_parameters params;
3652 u8 *mac_addr = NULL;
3654 memset(¶ms, 0, sizeof(params));
3656 if (!info->attrs[NL80211_ATTR_MAC])
3659 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3662 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3665 if (!info->attrs[NL80211_ATTR_STA_AID])
3668 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3669 params.supported_rates =
3670 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3671 params.supported_rates_len =
3672 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3673 params.listen_interval =
3674 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3676 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3677 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3680 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3682 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3683 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3686 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3688 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3689 params.ext_capab_len =
3690 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3693 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3695 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3697 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3699 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3701 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION])
3702 params.plink_action =
3703 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3705 if (!rdev->ops->add_station)
3708 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3711 switch (dev->ieee80211_ptr->iftype) {
3712 case NL80211_IFTYPE_AP:
3713 case NL80211_IFTYPE_AP_VLAN:
3714 case NL80211_IFTYPE_P2P_GO:
3715 /* parse WME attributes if sta is WME capable */
3716 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
3717 (params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)) &&
3718 info->attrs[NL80211_ATTR_STA_WME]) {
3719 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3722 nla = info->attrs[NL80211_ATTR_STA_WME];
3723 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3724 nl80211_sta_wme_policy);
3728 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3729 params.uapsd_queues =
3730 nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
3731 if (params.uapsd_queues &
3732 ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3735 if (tb[NL80211_STA_WME_MAX_SP])
3737 nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3740 ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3743 params.sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3745 /* TDLS peers cannot be added */
3746 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3748 /* but don't bother the driver with it */
3749 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3751 /* allow authenticated/associated only if driver handles it */
3752 if (!(rdev->wiphy.features &
3753 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3754 params.sta_flags_mask &
3755 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3756 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3759 /* must be last in here for error handling */
3760 params.vlan = get_vlan(info, rdev);
3761 if (IS_ERR(params.vlan))
3762 return PTR_ERR(params.vlan);
3764 case NL80211_IFTYPE_MESH_POINT:
3765 /* associated is disallowed */
3766 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3768 /* TDLS peers cannot be added */
3769 if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3772 case NL80211_IFTYPE_STATION:
3773 /* associated is disallowed */
3774 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
3776 /* Only TDLS peers can be added */
3777 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3779 /* Can only add if TDLS ... */
3780 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
3782 /* ... with external setup is supported */
3783 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3790 /* be aware of params.vlan when changing code here */
3792 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
3795 dev_put(params.vlan);
3799 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
3801 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3802 struct net_device *dev = info->user_ptr[1];
3803 u8 *mac_addr = NULL;
3805 if (info->attrs[NL80211_ATTR_MAC])
3806 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3808 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3809 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3810 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
3811 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3814 if (!rdev->ops->del_station)
3817 return rdev_del_station(rdev, dev, mac_addr);
3820 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
3821 int flags, struct net_device *dev,
3822 u8 *dst, u8 *next_hop,
3823 struct mpath_info *pinfo)
3826 struct nlattr *pinfoattr;
3828 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3832 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3833 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
3834 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
3835 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
3836 goto nla_put_failure;
3838 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
3840 goto nla_put_failure;
3841 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
3842 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
3844 goto nla_put_failure;
3845 if (((pinfo->filled & MPATH_INFO_SN) &&
3846 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
3847 ((pinfo->filled & MPATH_INFO_METRIC) &&
3848 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
3850 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
3851 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
3853 ((pinfo->filled & MPATH_INFO_FLAGS) &&
3854 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
3856 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
3857 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
3858 pinfo->discovery_timeout)) ||
3859 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
3860 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
3861 pinfo->discovery_retries)))
3862 goto nla_put_failure;
3864 nla_nest_end(msg, pinfoattr);
3866 return genlmsg_end(msg, hdr);
3869 genlmsg_cancel(msg, hdr);
3873 static int nl80211_dump_mpath(struct sk_buff *skb,
3874 struct netlink_callback *cb)
3876 struct mpath_info pinfo;
3877 struct cfg80211_registered_device *dev;
3878 struct net_device *netdev;
3880 u8 next_hop[ETH_ALEN];
3881 int path_idx = cb->args[1];
3884 err = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
3888 if (!dev->ops->dump_mpath) {
3893 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) {
3899 err = rdev_dump_mpath(dev, netdev, path_idx, dst, next_hop,
3906 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
3907 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3908 netdev, dst, next_hop,
3917 cb->args[1] = path_idx;
3920 nl80211_finish_netdev_dump(dev);
3924 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
3926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3928 struct net_device *dev = info->user_ptr[1];
3929 struct mpath_info pinfo;
3930 struct sk_buff *msg;
3932 u8 next_hop[ETH_ALEN];
3934 memset(&pinfo, 0, sizeof(pinfo));
3936 if (!info->attrs[NL80211_ATTR_MAC])
3939 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3941 if (!rdev->ops->get_mpath)
3944 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3947 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
3951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3955 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
3956 dev, dst, next_hop, &pinfo) < 0) {
3961 return genlmsg_reply(msg, info);
3964 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
3966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3967 struct net_device *dev = info->user_ptr[1];
3969 u8 *next_hop = NULL;
3971 if (!info->attrs[NL80211_ATTR_MAC])
3974 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
3977 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
3978 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
3980 if (!rdev->ops->change_mpath)
3983 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
3986 return rdev_change_mpath(rdev, dev, dst, next_hop);
3989 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
3991 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3992 struct net_device *dev = info->user_ptr[1];
3994 u8 *next_hop = NULL;
3996 if (!info->attrs[NL80211_ATTR_MAC])
3999 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4002 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4003 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4005 if (!rdev->ops->add_mpath)
4008 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4011 return rdev_add_mpath(rdev, dev, dst, next_hop);
4014 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4017 struct net_device *dev = info->user_ptr[1];
4020 if (info->attrs[NL80211_ATTR_MAC])
4021 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4023 if (!rdev->ops->del_mpath)
4026 return rdev_del_mpath(rdev, dev, dst);
4029 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4032 struct net_device *dev = info->user_ptr[1];
4033 struct bss_parameters params;
4035 memset(¶ms, 0, sizeof(params));
4036 /* default to not changing parameters */
4037 params.use_cts_prot = -1;
4038 params.use_short_preamble = -1;
4039 params.use_short_slot_time = -1;
4040 params.ap_isolate = -1;
4041 params.ht_opmode = -1;
4042 params.p2p_ctwindow = -1;
4043 params.p2p_opp_ps = -1;
4045 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4046 params.use_cts_prot =
4047 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4048 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4049 params.use_short_preamble =
4050 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4051 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4052 params.use_short_slot_time =
4053 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4054 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4055 params.basic_rates =
4056 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4057 params.basic_rates_len =
4058 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4060 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4061 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4062 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4064 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4066 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4067 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4069 params.p2p_ctwindow =
4070 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4071 if (params.p2p_ctwindow < 0)
4073 if (params.p2p_ctwindow != 0 &&
4074 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4078 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4081 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4083 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4086 params.p2p_opp_ps = tmp;
4087 if (params.p2p_opp_ps &&
4088 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4092 if (!rdev->ops->change_bss)
4095 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4096 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4099 return rdev_change_bss(rdev, dev, ¶ms);
4102 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4103 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4104 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4105 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4106 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4107 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4108 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4111 static int parse_reg_rule(struct nlattr *tb[],
4112 struct ieee80211_reg_rule *reg_rule)
4114 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4115 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4117 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4119 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4121 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4123 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4125 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4128 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4130 freq_range->start_freq_khz =
4131 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4132 freq_range->end_freq_khz =
4133 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4134 freq_range->max_bandwidth_khz =
4135 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4137 power_rule->max_eirp =
4138 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4140 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4141 power_rule->max_antenna_gain =
4142 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4147 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4151 enum nl80211_user_reg_hint_type user_reg_hint_type;
4154 * You should only get this when cfg80211 hasn't yet initialized
4155 * completely when built-in to the kernel right between the time
4156 * window between nl80211_init() and regulatory_init(), if that is
4159 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4160 return -EINPROGRESS;
4162 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4165 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4167 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4168 user_reg_hint_type =
4169 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4171 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4173 switch (user_reg_hint_type) {
4174 case NL80211_USER_REG_HINT_USER:
4175 case NL80211_USER_REG_HINT_CELL_BASE:
4181 r = regulatory_hint_user(data, user_reg_hint_type);
4186 static int nl80211_get_mesh_config(struct sk_buff *skb,
4187 struct genl_info *info)
4189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4190 struct net_device *dev = info->user_ptr[1];
4191 struct wireless_dev *wdev = dev->ieee80211_ptr;
4192 struct mesh_config cur_params;
4195 struct nlattr *pinfoattr;
4196 struct sk_buff *msg;
4198 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4201 if (!rdev->ops->get_mesh_config)
4205 /* If not connected, get default parameters */
4206 if (!wdev->mesh_id_len)
4207 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4209 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4215 /* Draw up a netlink message to send back */
4216 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4219 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4220 NL80211_CMD_GET_MESH_CONFIG);
4223 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4225 goto nla_put_failure;
4226 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4227 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4228 cur_params.dot11MeshRetryTimeout) ||
4229 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4230 cur_params.dot11MeshConfirmTimeout) ||
4231 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4232 cur_params.dot11MeshHoldingTimeout) ||
4233 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4234 cur_params.dot11MeshMaxPeerLinks) ||
4235 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4236 cur_params.dot11MeshMaxRetries) ||
4237 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4238 cur_params.dot11MeshTTL) ||
4239 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4240 cur_params.element_ttl) ||
4241 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4242 cur_params.auto_open_plinks) ||
4243 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4244 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4245 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4246 cur_params.dot11MeshHWMPmaxPREQretries) ||
4247 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4248 cur_params.path_refresh_time) ||
4249 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4250 cur_params.min_discovery_timeout) ||
4251 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4252 cur_params.dot11MeshHWMPactivePathTimeout) ||
4253 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4254 cur_params.dot11MeshHWMPpreqMinInterval) ||
4255 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4256 cur_params.dot11MeshHWMPperrMinInterval) ||
4257 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4258 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4259 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4260 cur_params.dot11MeshHWMPRootMode) ||
4261 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4262 cur_params.dot11MeshHWMPRannInterval) ||
4263 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4264 cur_params.dot11MeshGateAnnouncementProtocol) ||
4265 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4266 cur_params.dot11MeshForwarding) ||
4267 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4268 cur_params.rssi_threshold) ||
4269 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4270 cur_params.ht_opmode) ||
4271 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4272 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4273 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4274 cur_params.dot11MeshHWMProotInterval) ||
4275 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4276 cur_params.dot11MeshHWMPconfirmationInterval) ||
4277 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4278 cur_params.power_mode) ||
4279 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4280 cur_params.dot11MeshAwakeWindowDuration))
4281 goto nla_put_failure;
4282 nla_nest_end(msg, pinfoattr);
4283 genlmsg_end(msg, hdr);
4284 return genlmsg_reply(msg, info);
4287 genlmsg_cancel(msg, hdr);
4293 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4294 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4295 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4296 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4297 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4298 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4299 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4300 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4301 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4302 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4303 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4304 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4305 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4306 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4307 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4308 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4309 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4310 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4311 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4312 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4313 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4314 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4315 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4316 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4317 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4318 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4319 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4320 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4323 static const struct nla_policy
4324 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4325 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4326 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4327 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4328 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4329 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4330 .len = IEEE80211_MAX_DATA_LEN },
4331 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4334 static int nl80211_parse_mesh_config(struct genl_info *info,
4335 struct mesh_config *cfg,
4338 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4341 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4344 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4346 cfg->param = fn(tb[attr]); \
4347 mask |= (1 << (attr - 1)); \
4352 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4354 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4355 info->attrs[NL80211_ATTR_MESH_CONFIG],
4356 nl80211_meshconf_params_policy))
4359 /* This makes sure that there aren't more than 32 mesh config
4360 * parameters (otherwise our bitfield scheme would not work.) */
4361 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4363 /* Fill in the params struct */
4364 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4365 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4367 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4368 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4370 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4371 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4373 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4374 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4376 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4377 mask, NL80211_MESHCONF_MAX_RETRIES,
4379 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4380 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4381 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4382 mask, NL80211_MESHCONF_ELEMENT_TTL,
4384 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4385 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4387 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4389 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4391 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4392 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4394 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4395 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4397 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4398 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4400 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4402 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4404 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4406 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4408 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4410 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4412 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4413 dot11MeshHWMPnetDiameterTraversalTime,
4415 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4417 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4418 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4420 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4421 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4423 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4424 dot11MeshGateAnnouncementProtocol, 0, 1,
4425 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4427 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4428 mask, NL80211_MESHCONF_FORWARDING,
4430 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4431 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4433 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4434 mask, NL80211_MESHCONF_HT_OPMODE,
4436 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4438 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4440 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4441 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4443 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4444 dot11MeshHWMPconfirmationInterval,
4446 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4448 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4449 NL80211_MESH_POWER_ACTIVE,
4450 NL80211_MESH_POWER_MAX,
4451 mask, NL80211_MESHCONF_POWER_MODE,
4453 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4455 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4461 #undef FILL_IN_MESH_PARAM_IF_SET
4464 static int nl80211_parse_mesh_setup(struct genl_info *info,
4465 struct mesh_setup *setup)
4467 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4469 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4471 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4472 info->attrs[NL80211_ATTR_MESH_SETUP],
4473 nl80211_mesh_setup_params_policy))
4476 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4477 setup->sync_method =
4478 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4479 IEEE80211_SYNC_METHOD_VENDOR :
4480 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4482 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4483 setup->path_sel_proto =
4484 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4485 IEEE80211_PATH_PROTOCOL_VENDOR :
4486 IEEE80211_PATH_PROTOCOL_HWMP;
4488 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4489 setup->path_metric =
4490 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4491 IEEE80211_PATH_METRIC_VENDOR :
4492 IEEE80211_PATH_METRIC_AIRTIME;
4495 if (tb[NL80211_MESH_SETUP_IE]) {
4496 struct nlattr *ieattr =
4497 tb[NL80211_MESH_SETUP_IE];
4498 if (!is_valid_ie_attr(ieattr))
4500 setup->ie = nla_data(ieattr);
4501 setup->ie_len = nla_len(ieattr);
4503 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4504 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4509 static int nl80211_update_mesh_config(struct sk_buff *skb,
4510 struct genl_info *info)
4512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4513 struct net_device *dev = info->user_ptr[1];
4514 struct wireless_dev *wdev = dev->ieee80211_ptr;
4515 struct mesh_config cfg;
4519 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4522 if (!rdev->ops->update_mesh_config)
4525 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4530 if (!wdev->mesh_id_len)
4534 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4541 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4543 const struct ieee80211_regdomain *regdom;
4544 struct sk_buff *msg;
4546 struct nlattr *nl_reg_rules;
4550 mutex_lock(&cfg80211_mutex);
4552 if (!cfg80211_regdomain)
4555 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4561 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4562 NL80211_CMD_GET_REG);
4566 if (reg_last_request_cell_base() &&
4567 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4568 NL80211_USER_REG_HINT_CELL_BASE))
4569 goto nla_put_failure;
4572 regdom = rcu_dereference(cfg80211_regdomain);
4574 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4575 (regdom->dfs_region &&
4576 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4577 goto nla_put_failure_rcu;
4579 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4581 goto nla_put_failure_rcu;
4583 for (i = 0; i < regdom->n_reg_rules; i++) {
4584 struct nlattr *nl_reg_rule;
4585 const struct ieee80211_reg_rule *reg_rule;
4586 const struct ieee80211_freq_range *freq_range;
4587 const struct ieee80211_power_rule *power_rule;
4589 reg_rule = ®dom->reg_rules[i];
4590 freq_range = ®_rule->freq_range;
4591 power_rule = ®_rule->power_rule;
4593 nl_reg_rule = nla_nest_start(msg, i);
4595 goto nla_put_failure_rcu;
4597 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4599 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4600 freq_range->start_freq_khz) ||
4601 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4602 freq_range->end_freq_khz) ||
4603 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4604 freq_range->max_bandwidth_khz) ||
4605 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4606 power_rule->max_antenna_gain) ||
4607 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4608 power_rule->max_eirp))
4609 goto nla_put_failure_rcu;
4611 nla_nest_end(msg, nl_reg_rule);
4615 nla_nest_end(msg, nl_reg_rules);
4617 genlmsg_end(msg, hdr);
4618 err = genlmsg_reply(msg, info);
4621 nla_put_failure_rcu:
4624 genlmsg_cancel(msg, hdr);
4629 mutex_unlock(&cfg80211_mutex);
4633 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4635 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4636 struct nlattr *nl_reg_rule;
4637 char *alpha2 = NULL;
4638 int rem_reg_rules = 0, r = 0;
4639 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4641 struct ieee80211_regdomain *rd = NULL;
4643 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4646 if (!info->attrs[NL80211_ATTR_REG_RULES])
4649 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4651 if (info->attrs[NL80211_ATTR_DFS_REGION])
4652 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4654 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4657 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4661 size_of_regd = sizeof(struct ieee80211_regdomain) +
4662 num_rules * sizeof(struct ieee80211_reg_rule);
4664 rd = kzalloc(size_of_regd, GFP_KERNEL);
4668 rd->n_reg_rules = num_rules;
4669 rd->alpha2[0] = alpha2[0];
4670 rd->alpha2[1] = alpha2[1];
4673 * Disable DFS master mode if the DFS region was
4674 * not supported or known on this kernel.
4676 if (reg_supported_dfs_region(dfs_region))
4677 rd->dfs_region = dfs_region;
4679 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4681 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4682 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
4684 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
4690 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
4696 mutex_lock(&cfg80211_mutex);
4699 /* set_regdom took ownership */
4701 mutex_unlock(&cfg80211_mutex);
4708 static int validate_scan_freqs(struct nlattr *freqs)
4710 struct nlattr *attr1, *attr2;
4711 int n_channels = 0, tmp1, tmp2;
4713 nla_for_each_nested(attr1, freqs, tmp1) {
4716 * Some hardware has a limited channel list for
4717 * scanning, and it is pretty much nonsensical
4718 * to scan for a channel twice, so disallow that
4719 * and don't require drivers to check that the
4720 * channel list they get isn't longer than what
4721 * they can scan, as long as they can scan all
4722 * the channels they registered at once.
4724 nla_for_each_nested(attr2, freqs, tmp2)
4725 if (attr1 != attr2 &&
4726 nla_get_u32(attr1) == nla_get_u32(attr2))
4733 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
4735 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4736 struct wireless_dev *wdev = info->user_ptr[1];
4737 struct cfg80211_scan_request *request;
4738 struct nlattr *attr;
4739 struct wiphy *wiphy;
4740 int err, tmp, n_ssids = 0, n_channels, i;
4743 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4746 wiphy = &rdev->wiphy;
4748 if (!rdev->ops->scan)
4754 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4755 n_channels = validate_scan_freqs(
4756 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4760 enum ieee80211_band band;
4763 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4764 if (wiphy->bands[band])
4765 n_channels += wiphy->bands[band]->n_channels;
4768 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4769 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
4772 if (n_ssids > wiphy->max_scan_ssids)
4775 if (info->attrs[NL80211_ATTR_IE])
4776 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4780 if (ie_len > wiphy->max_scan_ie_len)
4783 request = kzalloc(sizeof(*request)
4784 + sizeof(*request->ssids) * n_ssids
4785 + sizeof(*request->channels) * n_channels
4786 + ie_len, GFP_KERNEL);
4791 request->ssids = (void *)&request->channels[n_channels];
4792 request->n_ssids = n_ssids;
4795 request->ie = (void *)(request->ssids + n_ssids);
4797 request->ie = (void *)(request->channels + n_channels);
4801 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4802 /* user specified, bail out if channel not found */
4803 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
4804 struct ieee80211_channel *chan;
4806 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
4813 /* ignore disabled channels */
4814 if (chan->flags & IEEE80211_CHAN_DISABLED)
4817 request->channels[i] = chan;
4821 enum ieee80211_band band;
4824 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
4826 if (!wiphy->bands[band])
4828 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
4829 struct ieee80211_channel *chan;
4831 chan = &wiphy->bands[band]->channels[j];
4833 if (chan->flags & IEEE80211_CHAN_DISABLED)
4836 request->channels[i] = chan;
4847 request->n_channels = i;
4850 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
4851 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
4852 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
4856 request->ssids[i].ssid_len = nla_len(attr);
4857 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
4862 if (info->attrs[NL80211_ATTR_IE]) {
4863 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4864 memcpy((void *)request->ie,
4865 nla_data(info->attrs[NL80211_ATTR_IE]),
4869 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4870 if (wiphy->bands[i])
4872 (1 << wiphy->bands[i]->n_bitrates) - 1;
4874 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
4875 nla_for_each_nested(attr,
4876 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
4878 enum ieee80211_band band = nla_type(attr);
4880 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
4884 err = ieee80211_get_ratemask(wiphy->bands[band],
4887 &request->rates[band]);
4893 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
4894 request->flags = nla_get_u32(
4895 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
4896 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
4897 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
4898 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
4899 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
4906 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
4908 request->wdev = wdev;
4909 request->wiphy = &rdev->wiphy;
4910 request->scan_start = jiffies;
4912 rdev->scan_req = request;
4913 err = rdev_scan(rdev, request);
4916 nl80211_send_scan_start(rdev, wdev);
4918 dev_hold(wdev->netdev);
4921 rdev->scan_req = NULL;
4928 static int nl80211_start_sched_scan(struct sk_buff *skb,
4929 struct genl_info *info)
4931 struct cfg80211_sched_scan_request *request;
4932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4933 struct net_device *dev = info->user_ptr[1];
4934 struct nlattr *attr;
4935 struct wiphy *wiphy;
4936 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
4938 enum ieee80211_band band;
4940 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
4942 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
4943 !rdev->ops->sched_scan_start)
4946 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
4949 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
4952 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
4956 wiphy = &rdev->wiphy;
4958 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
4959 n_channels = validate_scan_freqs(
4960 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
4966 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
4967 if (wiphy->bands[band])
4968 n_channels += wiphy->bands[band]->n_channels;
4971 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
4972 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
4976 if (n_ssids > wiphy->max_sched_scan_ssids)
4979 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
4980 nla_for_each_nested(attr,
4981 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
4985 if (n_match_sets > wiphy->max_match_sets)
4988 if (info->attrs[NL80211_ATTR_IE])
4989 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
4993 if (ie_len > wiphy->max_sched_scan_ie_len)
4996 mutex_lock(&rdev->sched_scan_mtx);
4998 if (rdev->sched_scan_req) {
5003 request = kzalloc(sizeof(*request)
5004 + sizeof(*request->ssids) * n_ssids
5005 + sizeof(*request->match_sets) * n_match_sets
5006 + sizeof(*request->channels) * n_channels
5007 + ie_len, GFP_KERNEL);
5014 request->ssids = (void *)&request->channels[n_channels];
5015 request->n_ssids = n_ssids;
5018 request->ie = (void *)(request->ssids + n_ssids);
5020 request->ie = (void *)(request->channels + n_channels);
5025 request->match_sets = (void *)(request->ie + ie_len);
5026 else if (request->ssids)
5027 request->match_sets =
5028 (void *)(request->ssids + n_ssids);
5030 request->match_sets =
5031 (void *)(request->channels + n_channels);
5033 request->n_match_sets = n_match_sets;
5036 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5037 /* user specified, bail out if channel not found */
5038 nla_for_each_nested(attr,
5039 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5041 struct ieee80211_channel *chan;
5043 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5050 /* ignore disabled channels */
5051 if (chan->flags & IEEE80211_CHAN_DISABLED)
5054 request->channels[i] = chan;
5059 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5061 if (!wiphy->bands[band])
5063 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5064 struct ieee80211_channel *chan;
5066 chan = &wiphy->bands[band]->channels[j];
5068 if (chan->flags & IEEE80211_CHAN_DISABLED)
5071 request->channels[i] = chan;
5082 request->n_channels = i;
5085 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5086 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5088 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5092 request->ssids[i].ssid_len = nla_len(attr);
5093 memcpy(request->ssids[i].ssid, nla_data(attr),
5100 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5101 nla_for_each_nested(attr,
5102 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5104 struct nlattr *ssid, *rssi;
5106 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5107 nla_data(attr), nla_len(attr),
5108 nl80211_match_policy);
5109 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5111 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5115 memcpy(request->match_sets[i].ssid.ssid,
5116 nla_data(ssid), nla_len(ssid));
5117 request->match_sets[i].ssid.ssid_len =
5120 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5122 request->rssi_thold = nla_get_u32(rssi);
5124 request->rssi_thold =
5125 NL80211_SCAN_RSSI_THOLD_OFF;
5130 if (info->attrs[NL80211_ATTR_IE]) {
5131 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5132 memcpy((void *)request->ie,
5133 nla_data(info->attrs[NL80211_ATTR_IE]),
5137 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5138 request->flags = nla_get_u32(
5139 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5140 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5141 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5142 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5143 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5150 request->wiphy = &rdev->wiphy;
5151 request->interval = interval;
5152 request->scan_start = jiffies;
5154 err = rdev_sched_scan_start(rdev, dev, request);
5156 rdev->sched_scan_req = request;
5157 nl80211_send_sched_scan(rdev, dev,
5158 NL80211_CMD_START_SCHED_SCAN);
5165 mutex_unlock(&rdev->sched_scan_mtx);
5169 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5170 struct genl_info *info)
5172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5175 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5176 !rdev->ops->sched_scan_stop)
5179 mutex_lock(&rdev->sched_scan_mtx);
5180 err = __cfg80211_stop_sched_scan(rdev, false);
5181 mutex_unlock(&rdev->sched_scan_mtx);
5186 static int nl80211_start_radar_detection(struct sk_buff *skb,
5187 struct genl_info *info)
5189 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5190 struct net_device *dev = info->user_ptr[1];
5191 struct wireless_dev *wdev = dev->ieee80211_ptr;
5192 struct cfg80211_chan_def chandef;
5195 err = nl80211_parse_chandef(rdev, info, &chandef);
5199 if (wdev->cac_started)
5202 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5209 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5212 if (!rdev->ops->start_radar_detection)
5215 mutex_lock(&rdev->devlist_mtx);
5216 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5217 chandef.chan, CHAN_MODE_SHARED,
5218 BIT(chandef.width));
5222 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5224 wdev->channel = chandef.chan;
5225 wdev->cac_started = true;
5226 wdev->cac_start_time = jiffies;
5229 mutex_unlock(&rdev->devlist_mtx);
5234 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5236 struct cfg80211_registered_device *rdev,
5237 struct wireless_dev *wdev,
5238 struct cfg80211_internal_bss *intbss)
5240 struct cfg80211_bss *res = &intbss->pub;
5241 const struct cfg80211_bss_ies *ies;
5246 ASSERT_WDEV_LOCK(wdev);
5248 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5249 NL80211_CMD_NEW_SCAN_RESULTS);
5253 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5255 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation) ||
5256 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5257 goto nla_put_failure;
5259 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5261 goto nla_put_failure;
5262 if ((!is_zero_ether_addr(res->bssid) &&
5263 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5264 goto nla_put_failure;
5267 ies = rcu_dereference(res->ies);
5269 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5270 goto fail_unlock_rcu;
5272 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5273 ies->len, ies->data))
5274 goto fail_unlock_rcu;
5276 ies = rcu_dereference(res->beacon_ies);
5278 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5279 goto fail_unlock_rcu;
5280 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5281 ies->len, ies->data))
5282 goto fail_unlock_rcu;
5286 if (res->beacon_interval &&
5287 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5288 goto nla_put_failure;
5289 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5290 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5291 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5292 jiffies_to_msecs(jiffies - intbss->ts)))
5293 goto nla_put_failure;
5295 switch (rdev->wiphy.signal_type) {
5296 case CFG80211_SIGNAL_TYPE_MBM:
5297 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5298 goto nla_put_failure;
5300 case CFG80211_SIGNAL_TYPE_UNSPEC:
5301 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5302 goto nla_put_failure;
5308 switch (wdev->iftype) {
5309 case NL80211_IFTYPE_P2P_CLIENT:
5310 case NL80211_IFTYPE_STATION:
5311 if (intbss == wdev->current_bss &&
5312 nla_put_u32(msg, NL80211_BSS_STATUS,
5313 NL80211_BSS_STATUS_ASSOCIATED))
5314 goto nla_put_failure;
5316 case NL80211_IFTYPE_ADHOC:
5317 if (intbss == wdev->current_bss &&
5318 nla_put_u32(msg, NL80211_BSS_STATUS,
5319 NL80211_BSS_STATUS_IBSS_JOINED))
5320 goto nla_put_failure;
5326 nla_nest_end(msg, bss);
5328 return genlmsg_end(msg, hdr);
5333 genlmsg_cancel(msg, hdr);
5337 static int nl80211_dump_scan(struct sk_buff *skb,
5338 struct netlink_callback *cb)
5340 struct cfg80211_registered_device *rdev;
5341 struct net_device *dev;
5342 struct cfg80211_internal_bss *scan;
5343 struct wireless_dev *wdev;
5344 int start = cb->args[1], idx = 0;
5347 err = nl80211_prepare_netdev_dump(skb, cb, &rdev, &dev);
5351 wdev = dev->ieee80211_ptr;
5354 spin_lock_bh(&rdev->bss_lock);
5355 cfg80211_bss_expire(rdev);
5357 cb->seq = rdev->bss_generation;
5359 list_for_each_entry(scan, &rdev->bss_list, list) {
5362 if (nl80211_send_bss(skb, cb,
5363 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5364 rdev, wdev, scan) < 0) {
5370 spin_unlock_bh(&rdev->bss_lock);
5374 nl80211_finish_netdev_dump(rdev);
5379 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5380 int flags, struct net_device *dev,
5381 struct survey_info *survey)
5384 struct nlattr *infoattr;
5386 hdr = nl80211hdr_put(msg, portid, seq, flags,
5387 NL80211_CMD_NEW_SURVEY_RESULTS);
5391 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5392 goto nla_put_failure;
5394 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5396 goto nla_put_failure;
5398 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5399 survey->channel->center_freq))
5400 goto nla_put_failure;
5402 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5403 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5404 goto nla_put_failure;
5405 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5406 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5407 goto nla_put_failure;
5408 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5409 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5410 survey->channel_time))
5411 goto nla_put_failure;
5412 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5413 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5414 survey->channel_time_busy))
5415 goto nla_put_failure;
5416 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5417 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5418 survey->channel_time_ext_busy))
5419 goto nla_put_failure;
5420 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5421 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5422 survey->channel_time_rx))
5423 goto nla_put_failure;
5424 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5425 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5426 survey->channel_time_tx))
5427 goto nla_put_failure;
5429 nla_nest_end(msg, infoattr);
5431 return genlmsg_end(msg, hdr);
5434 genlmsg_cancel(msg, hdr);
5438 static int nl80211_dump_survey(struct sk_buff *skb,
5439 struct netlink_callback *cb)
5441 struct survey_info survey;
5442 struct cfg80211_registered_device *dev;
5443 struct net_device *netdev;
5444 int survey_idx = cb->args[1];
5447 res = nl80211_prepare_netdev_dump(skb, cb, &dev, &netdev);
5451 if (!dev->ops->dump_survey) {
5457 struct ieee80211_channel *chan;
5459 res = rdev_dump_survey(dev, netdev, survey_idx, &survey);
5465 /* Survey without a channel doesn't make sense */
5466 if (!survey.channel) {
5471 chan = ieee80211_get_channel(&dev->wiphy,
5472 survey.channel->center_freq);
5473 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5478 if (nl80211_send_survey(skb,
5479 NETLINK_CB(cb->skb).portid,
5480 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5488 cb->args[1] = survey_idx;
5491 nl80211_finish_netdev_dump(dev);
5495 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5497 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5498 NL80211_WPA_VERSION_2));
5501 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5504 struct net_device *dev = info->user_ptr[1];
5505 struct ieee80211_channel *chan;
5506 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5507 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5508 enum nl80211_auth_type auth_type;
5509 struct key_parse key;
5510 bool local_state_change;
5512 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5515 if (!info->attrs[NL80211_ATTR_MAC])
5518 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5521 if (!info->attrs[NL80211_ATTR_SSID])
5524 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5527 err = nl80211_parse_key(info, &key);
5532 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5534 if (!key.p.key || !key.p.key_len)
5536 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5537 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5538 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5539 key.p.key_len != WLAN_KEY_LEN_WEP104))
5551 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5552 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5561 if (!rdev->ops->auth)
5564 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5565 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5568 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5569 chan = ieee80211_get_channel(&rdev->wiphy,
5570 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5571 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5574 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5575 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5577 if (info->attrs[NL80211_ATTR_IE]) {
5578 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5579 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5582 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5583 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5586 if (auth_type == NL80211_AUTHTYPE_SAE &&
5587 !info->attrs[NL80211_ATTR_SAE_DATA])
5590 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5591 if (auth_type != NL80211_AUTHTYPE_SAE)
5593 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5594 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5595 /* need to include at least Auth Transaction and Status Code */
5596 if (sae_data_len < 4)
5600 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5603 * Since we no longer track auth state, ignore
5604 * requests to only change local state.
5606 if (local_state_change)
5609 return cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5610 ssid, ssid_len, ie, ie_len,
5611 key.p.key, key.p.key_len, key.idx,
5612 sae_data, sae_data_len);
5615 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5616 struct genl_info *info,
5617 struct cfg80211_crypto_settings *settings,
5620 memset(settings, 0, sizeof(*settings));
5622 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5624 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5626 proto = nla_get_u16(
5627 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5628 settings->control_port_ethertype = cpu_to_be16(proto);
5629 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5632 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5633 settings->control_port_no_encrypt = true;
5635 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5637 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5641 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5642 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5643 settings->n_ciphers_pairwise = len / sizeof(u32);
5645 if (len % sizeof(u32))
5648 if (settings->n_ciphers_pairwise > cipher_limit)
5651 memcpy(settings->ciphers_pairwise, data, len);
5653 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5654 if (!cfg80211_supported_cipher_suite(
5656 settings->ciphers_pairwise[i]))
5660 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5661 settings->cipher_group =
5662 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5663 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5664 settings->cipher_group))
5668 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5669 settings->wpa_versions =
5670 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5671 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5675 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5679 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5680 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
5681 settings->n_akm_suites = len / sizeof(u32);
5683 if (len % sizeof(u32))
5686 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
5689 memcpy(settings->akm_suites, data, len);
5695 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
5697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5698 struct net_device *dev = info->user_ptr[1];
5699 struct cfg80211_crypto_settings crypto;
5700 struct ieee80211_channel *chan;
5701 const u8 *bssid, *ssid, *ie = NULL, *prev_bssid = NULL;
5702 int err, ssid_len, ie_len = 0;
5703 bool use_mfp = false;
5705 struct ieee80211_ht_cap *ht_capa = NULL;
5706 struct ieee80211_ht_cap *ht_capa_mask = NULL;
5708 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5711 if (!info->attrs[NL80211_ATTR_MAC] ||
5712 !info->attrs[NL80211_ATTR_SSID] ||
5713 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
5716 if (!rdev->ops->assoc)
5719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5720 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5723 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5725 chan = ieee80211_get_channel(&rdev->wiphy,
5726 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5727 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5730 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5731 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5733 if (info->attrs[NL80211_ATTR_IE]) {
5734 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5735 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5738 if (info->attrs[NL80211_ATTR_USE_MFP]) {
5739 enum nl80211_mfp mfp =
5740 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
5741 if (mfp == NL80211_MFP_REQUIRED)
5743 else if (mfp != NL80211_MFP_NO)
5747 if (info->attrs[NL80211_ATTR_PREV_BSSID])
5748 prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
5750 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
5751 flags |= ASSOC_REQ_DISABLE_HT;
5753 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
5755 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]);
5757 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
5760 ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
5763 err = nl80211_crypto_settings(rdev, info, &crypto, 1);
5765 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
5766 ssid, ssid_len, ie, ie_len, use_mfp,
5767 &crypto, flags, ht_capa,
5773 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
5775 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5776 struct net_device *dev = info->user_ptr[1];
5777 const u8 *ie = NULL, *bssid;
5780 bool local_state_change;
5782 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5785 if (!info->attrs[NL80211_ATTR_MAC])
5788 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5791 if (!rdev->ops->deauth)
5794 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5795 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5798 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5800 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5801 if (reason_code == 0) {
5802 /* Reason Code 0 is reserved */
5806 if (info->attrs[NL80211_ATTR_IE]) {
5807 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5808 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5811 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5813 return cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
5814 local_state_change);
5817 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
5819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5820 struct net_device *dev = info->user_ptr[1];
5821 const u8 *ie = NULL, *bssid;
5824 bool local_state_change;
5826 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5829 if (!info->attrs[NL80211_ATTR_MAC])
5832 if (!info->attrs[NL80211_ATTR_REASON_CODE])
5835 if (!rdev->ops->disassoc)
5838 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5839 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5842 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5844 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
5845 if (reason_code == 0) {
5846 /* Reason Code 0 is reserved */
5850 if (info->attrs[NL80211_ATTR_IE]) {
5851 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5852 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5855 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5857 return cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
5858 local_state_change);
5862 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
5863 int mcast_rate[IEEE80211_NUM_BANDS],
5866 struct wiphy *wiphy = &rdev->wiphy;
5870 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5871 struct ieee80211_supported_band *sband;
5873 sband = wiphy->bands[band];
5877 for (i = 0; i < sband->n_bitrates; i++) {
5878 if (sband->bitrates[i].bitrate == rateval) {
5879 mcast_rate[band] = i + 1;
5889 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
5891 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5892 struct net_device *dev = info->user_ptr[1];
5893 struct cfg80211_ibss_params ibss;
5894 struct wiphy *wiphy;
5895 struct cfg80211_cached_keys *connkeys = NULL;
5898 memset(&ibss, 0, sizeof(ibss));
5900 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5903 if (!info->attrs[NL80211_ATTR_SSID] ||
5904 !nla_len(info->attrs[NL80211_ATTR_SSID]))
5907 ibss.beacon_interval = 100;
5909 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
5910 ibss.beacon_interval =
5911 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
5912 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
5916 if (!rdev->ops->join_ibss)
5919 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
5922 wiphy = &rdev->wiphy;
5924 if (info->attrs[NL80211_ATTR_MAC]) {
5925 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5927 if (!is_valid_ether_addr(ibss.bssid))
5930 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5931 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5933 if (info->attrs[NL80211_ATTR_IE]) {
5934 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5935 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5938 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
5942 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
5945 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
5947 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
5948 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
5951 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
5952 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
5954 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
5956 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5958 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
5959 struct ieee80211_supported_band *sband =
5960 wiphy->bands[ibss.chandef.chan->band];
5962 err = ieee80211_get_ratemask(sband, rates, n_rates,
5968 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
5969 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
5970 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
5973 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
5976 connkeys = nl80211_parse_connkeys(rdev,
5977 info->attrs[NL80211_ATTR_KEYS],
5979 if (IS_ERR(connkeys))
5980 return PTR_ERR(connkeys);
5982 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
5990 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
5992 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
5998 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6000 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6001 struct net_device *dev = info->user_ptr[1];
6003 if (!rdev->ops->leave_ibss)
6006 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6009 return cfg80211_leave_ibss(rdev, dev, false);
6012 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6015 struct net_device *dev = info->user_ptr[1];
6016 int mcast_rate[IEEE80211_NUM_BANDS];
6020 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6021 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6024 if (!rdev->ops->set_mcast_rate)
6027 memset(mcast_rate, 0, sizeof(mcast_rate));
6029 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6032 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6033 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6036 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6042 #ifdef CONFIG_NL80211_TESTMODE
6043 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6047 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6052 if (!info->attrs[NL80211_ATTR_TESTDATA])
6056 if (rdev->ops->testmode_cmd) {
6057 rdev->testmode_info = info;
6058 err = rdev_testmode_cmd(rdev,
6059 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6060 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6061 rdev->testmode_info = NULL;
6067 static int nl80211_testmode_dump(struct sk_buff *skb,
6068 struct netlink_callback *cb)
6070 struct cfg80211_registered_device *rdev;
6078 * 0 is a valid index, but not valid for args[0],
6079 * so we need to offset by 1.
6081 phy_idx = cb->args[0] - 1;
6083 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6084 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6089 mutex_lock(&cfg80211_mutex);
6090 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6091 nl80211_fam.attrbuf);
6093 mutex_unlock(&cfg80211_mutex);
6094 return PTR_ERR(rdev);
6096 phy_idx = rdev->wiphy_idx;
6098 mutex_unlock(&cfg80211_mutex);
6100 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6102 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6106 data = nla_data((void *)cb->args[1]);
6107 data_len = nla_len((void *)cb->args[1]);
6110 mutex_lock(&cfg80211_mutex);
6111 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6113 mutex_unlock(&cfg80211_mutex);
6116 cfg80211_lock_rdev(rdev);
6117 mutex_unlock(&cfg80211_mutex);
6119 if (!rdev->ops->testmode_dump) {
6125 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6126 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6127 NL80211_CMD_TESTMODE);
6128 struct nlattr *tmdata;
6130 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6131 genlmsg_cancel(skb, hdr);
6135 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6137 genlmsg_cancel(skb, hdr);
6140 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6141 nla_nest_end(skb, tmdata);
6143 if (err == -ENOBUFS || err == -ENOENT) {
6144 genlmsg_cancel(skb, hdr);
6147 genlmsg_cancel(skb, hdr);
6151 genlmsg_end(skb, hdr);
6156 cb->args[0] = phy_idx + 1;
6158 cfg80211_unlock_rdev(rdev);
6162 static struct sk_buff *
6163 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6164 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6166 struct sk_buff *skb;
6168 struct nlattr *data;
6170 skb = nlmsg_new(approxlen + 100, gfp);
6174 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6180 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6181 goto nla_put_failure;
6182 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6184 ((void **)skb->cb)[0] = rdev;
6185 ((void **)skb->cb)[1] = hdr;
6186 ((void **)skb->cb)[2] = data;
6195 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6198 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6200 if (WARN_ON(!rdev->testmode_info))
6203 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6204 rdev->testmode_info->snd_portid,
6205 rdev->testmode_info->snd_seq,
6208 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6210 int cfg80211_testmode_reply(struct sk_buff *skb)
6212 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6213 void *hdr = ((void **)skb->cb)[1];
6214 struct nlattr *data = ((void **)skb->cb)[2];
6216 if (WARN_ON(!rdev->testmode_info)) {
6221 nla_nest_end(skb, data);
6222 genlmsg_end(skb, hdr);
6223 return genlmsg_reply(skb, rdev->testmode_info);
6225 EXPORT_SYMBOL(cfg80211_testmode_reply);
6227 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6228 int approxlen, gfp_t gfp)
6230 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6232 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6234 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6236 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6238 void *hdr = ((void **)skb->cb)[1];
6239 struct nlattr *data = ((void **)skb->cb)[2];
6241 nla_nest_end(skb, data);
6242 genlmsg_end(skb, hdr);
6243 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6245 EXPORT_SYMBOL(cfg80211_testmode_event);
6248 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6250 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6251 struct net_device *dev = info->user_ptr[1];
6252 struct cfg80211_connect_params connect;
6253 struct wiphy *wiphy;
6254 struct cfg80211_cached_keys *connkeys = NULL;
6257 memset(&connect, 0, sizeof(connect));
6259 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6262 if (!info->attrs[NL80211_ATTR_SSID] ||
6263 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6266 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6268 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6269 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6270 NL80211_CMD_CONNECT))
6273 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6275 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6277 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6278 NL80211_MAX_NR_CIPHER_SUITES);
6282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6286 wiphy = &rdev->wiphy;
6288 connect.bg_scan_period = -1;
6289 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6290 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6291 connect.bg_scan_period =
6292 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6295 if (info->attrs[NL80211_ATTR_MAC])
6296 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6297 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6298 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6300 if (info->attrs[NL80211_ATTR_IE]) {
6301 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6302 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6305 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6306 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6307 if (connect.mfp != NL80211_MFP_REQUIRED &&
6308 connect.mfp != NL80211_MFP_NO)
6311 connect.mfp = NL80211_MFP_NO;
6314 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6316 ieee80211_get_channel(wiphy,
6317 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6318 if (!connect.channel ||
6319 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6323 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6324 connkeys = nl80211_parse_connkeys(rdev,
6325 info->attrs[NL80211_ATTR_KEYS], NULL);
6326 if (IS_ERR(connkeys))
6327 return PTR_ERR(connkeys);
6330 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6331 connect.flags |= ASSOC_REQ_DISABLE_HT;
6333 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6334 memcpy(&connect.ht_capa_mask,
6335 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6336 sizeof(connect.ht_capa_mask));
6338 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6339 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6343 memcpy(&connect.ht_capa,
6344 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6345 sizeof(connect.ht_capa));
6348 err = cfg80211_connect(rdev, dev, &connect, connkeys);
6354 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6357 struct net_device *dev = info->user_ptr[1];
6360 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6361 reason = WLAN_REASON_DEAUTH_LEAVING;
6363 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6369 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6372 return cfg80211_disconnect(rdev, dev, reason, true);
6375 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6377 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6382 if (!info->attrs[NL80211_ATTR_PID])
6385 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6387 net = get_net_ns_by_pid(pid);
6389 return PTR_ERR(net);
6393 /* check if anything to do */
6394 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6395 err = cfg80211_switch_netns(rdev, net);
6401 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6404 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6405 struct cfg80211_pmksa *pmksa) = NULL;
6406 struct net_device *dev = info->user_ptr[1];
6407 struct cfg80211_pmksa pmksa;
6409 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6411 if (!info->attrs[NL80211_ATTR_MAC])
6414 if (!info->attrs[NL80211_ATTR_PMKID])
6417 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6418 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6420 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6421 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6424 switch (info->genlhdr->cmd) {
6425 case NL80211_CMD_SET_PMKSA:
6426 rdev_ops = rdev->ops->set_pmksa;
6428 case NL80211_CMD_DEL_PMKSA:
6429 rdev_ops = rdev->ops->del_pmksa;
6439 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6442 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6445 struct net_device *dev = info->user_ptr[1];
6447 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6448 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6451 if (!rdev->ops->flush_pmksa)
6454 return rdev_flush_pmksa(rdev, dev);
6457 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6460 struct net_device *dev = info->user_ptr[1];
6461 u8 action_code, dialog_token;
6465 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6466 !rdev->ops->tdls_mgmt)
6469 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6470 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6471 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6472 !info->attrs[NL80211_ATTR_IE] ||
6473 !info->attrs[NL80211_ATTR_MAC])
6476 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6477 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6478 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6479 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6481 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6482 dialog_token, status_code,
6483 nla_data(info->attrs[NL80211_ATTR_IE]),
6484 nla_len(info->attrs[NL80211_ATTR_IE]));
6487 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6490 struct net_device *dev = info->user_ptr[1];
6491 enum nl80211_tdls_operation operation;
6494 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6495 !rdev->ops->tdls_oper)
6498 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6499 !info->attrs[NL80211_ATTR_MAC])
6502 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6503 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6505 return rdev_tdls_oper(rdev, dev, peer, operation);
6508 static int nl80211_remain_on_channel(struct sk_buff *skb,
6509 struct genl_info *info)
6511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6512 struct wireless_dev *wdev = info->user_ptr[1];
6513 struct cfg80211_chan_def chandef;
6514 struct sk_buff *msg;
6520 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6521 !info->attrs[NL80211_ATTR_DURATION])
6524 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6526 if (!rdev->ops->remain_on_channel ||
6527 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6531 * We should be on that channel for at least a minimum amount of
6532 * time (10ms) but no longer than the driver supports.
6534 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6535 duration > rdev->wiphy.max_remain_on_channel_duration)
6538 err = nl80211_parse_chandef(rdev, info, &chandef);
6542 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6546 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6547 NL80211_CMD_REMAIN_ON_CHANNEL);
6554 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6560 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6561 goto nla_put_failure;
6563 genlmsg_end(msg, hdr);
6565 return genlmsg_reply(msg, info);
6574 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6575 struct genl_info *info)
6577 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6578 struct wireless_dev *wdev = info->user_ptr[1];
6581 if (!info->attrs[NL80211_ATTR_COOKIE])
6584 if (!rdev->ops->cancel_remain_on_channel)
6587 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6589 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6592 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6593 u8 *rates, u8 rates_len)
6598 for (i = 0; i < rates_len; i++) {
6599 int rate = (rates[i] & 0x7f) * 5;
6601 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6602 struct ieee80211_rate *srate =
6603 &sband->bitrates[ridx];
6604 if (rate == srate->bitrate) {
6609 if (ridx == sband->n_bitrates)
6610 return 0; /* rate not found */
6616 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6617 u8 *rates, u8 rates_len,
6618 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6622 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6624 for (i = 0; i < rates_len; i++) {
6627 ridx = rates[i] / 8;
6628 rbit = BIT(rates[i] % 8);
6630 /* check validity */
6631 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6634 /* check availability */
6635 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
6644 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
6645 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
6646 .len = NL80211_MAX_SUPP_RATES },
6647 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
6648 .len = NL80211_MAX_SUPP_HT_RATES },
6651 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
6652 struct genl_info *info)
6654 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
6655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6656 struct cfg80211_bitrate_mask mask;
6658 struct net_device *dev = info->user_ptr[1];
6659 struct nlattr *tx_rates;
6660 struct ieee80211_supported_band *sband;
6662 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
6665 if (!rdev->ops->set_bitrate_mask)
6668 memset(&mask, 0, sizeof(mask));
6669 /* Default to all rates enabled */
6670 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
6671 sband = rdev->wiphy.bands[i];
6672 mask.control[i].legacy =
6673 sband ? (1 << sband->n_bitrates) - 1 : 0;
6675 memcpy(mask.control[i].mcs,
6676 sband->ht_cap.mcs.rx_mask,
6677 sizeof(mask.control[i].mcs));
6679 memset(mask.control[i].mcs, 0,
6680 sizeof(mask.control[i].mcs));
6684 * The nested attribute uses enum nl80211_band as the index. This maps
6685 * directly to the enum ieee80211_band values used in cfg80211.
6687 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
6688 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
6690 enum ieee80211_band band = nla_type(tx_rates);
6691 if (band < 0 || band >= IEEE80211_NUM_BANDS)
6693 sband = rdev->wiphy.bands[band];
6696 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
6697 nla_len(tx_rates), nl80211_txattr_policy);
6698 if (tb[NL80211_TXRATE_LEGACY]) {
6699 mask.control[band].legacy = rateset_to_mask(
6701 nla_data(tb[NL80211_TXRATE_LEGACY]),
6702 nla_len(tb[NL80211_TXRATE_LEGACY]));
6703 if ((mask.control[band].legacy == 0) &&
6704 nla_len(tb[NL80211_TXRATE_LEGACY]))
6707 if (tb[NL80211_TXRATE_MCS]) {
6708 if (!ht_rateset_to_mask(
6710 nla_data(tb[NL80211_TXRATE_MCS]),
6711 nla_len(tb[NL80211_TXRATE_MCS]),
6712 mask.control[band].mcs))
6716 if (mask.control[band].legacy == 0) {
6717 /* don't allow empty legacy rates if HT
6718 * is not even supported. */
6719 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
6722 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
6723 if (mask.control[band].mcs[i])
6726 /* legacy and mcs rates may not be both empty */
6727 if (i == IEEE80211_HT_MCS_MASK_LEN)
6732 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
6735 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
6737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6738 struct wireless_dev *wdev = info->user_ptr[1];
6739 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
6741 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
6744 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
6745 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
6747 switch (wdev->iftype) {
6748 case NL80211_IFTYPE_STATION:
6749 case NL80211_IFTYPE_ADHOC:
6750 case NL80211_IFTYPE_P2P_CLIENT:
6751 case NL80211_IFTYPE_AP:
6752 case NL80211_IFTYPE_AP_VLAN:
6753 case NL80211_IFTYPE_MESH_POINT:
6754 case NL80211_IFTYPE_P2P_GO:
6755 case NL80211_IFTYPE_P2P_DEVICE:
6761 /* not much point in registering if we can't reply */
6762 if (!rdev->ops->mgmt_tx)
6765 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
6766 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
6767 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
6770 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
6772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6773 struct wireless_dev *wdev = info->user_ptr[1];
6774 struct cfg80211_chan_def chandef;
6778 struct sk_buff *msg = NULL;
6779 unsigned int wait = 0;
6780 bool offchan, no_cck, dont_wait_for_ack;
6782 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
6784 if (!info->attrs[NL80211_ATTR_FRAME])
6787 if (!rdev->ops->mgmt_tx)
6790 switch (wdev->iftype) {
6791 case NL80211_IFTYPE_STATION:
6792 case NL80211_IFTYPE_ADHOC:
6793 case NL80211_IFTYPE_P2P_CLIENT:
6794 case NL80211_IFTYPE_AP:
6795 case NL80211_IFTYPE_AP_VLAN:
6796 case NL80211_IFTYPE_MESH_POINT:
6797 case NL80211_IFTYPE_P2P_GO:
6798 case NL80211_IFTYPE_P2P_DEVICE:
6804 if (info->attrs[NL80211_ATTR_DURATION]) {
6805 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6807 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6810 * We should wait on the channel for at least a minimum amount
6811 * of time (10ms) but no longer than the driver supports.
6813 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6814 wait > rdev->wiphy.max_remain_on_channel_duration)
6819 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
6821 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
6824 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
6826 err = nl80211_parse_chandef(rdev, info, &chandef);
6830 if (!dont_wait_for_ack) {
6831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6835 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6844 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
6845 nla_data(info->attrs[NL80211_ATTR_FRAME]),
6846 nla_len(info->attrs[NL80211_ATTR_FRAME]),
6847 no_cck, dont_wait_for_ack, &cookie);
6852 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6853 goto nla_put_failure;
6855 genlmsg_end(msg, hdr);
6856 return genlmsg_reply(msg, info);
6868 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
6870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6871 struct wireless_dev *wdev = info->user_ptr[1];
6874 if (!info->attrs[NL80211_ATTR_COOKIE])
6877 if (!rdev->ops->mgmt_tx_cancel_wait)
6880 switch (wdev->iftype) {
6881 case NL80211_IFTYPE_STATION:
6882 case NL80211_IFTYPE_ADHOC:
6883 case NL80211_IFTYPE_P2P_CLIENT:
6884 case NL80211_IFTYPE_AP:
6885 case NL80211_IFTYPE_AP_VLAN:
6886 case NL80211_IFTYPE_P2P_GO:
6887 case NL80211_IFTYPE_P2P_DEVICE:
6893 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6895 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
6898 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
6900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6901 struct wireless_dev *wdev;
6902 struct net_device *dev = info->user_ptr[1];
6907 if (!info->attrs[NL80211_ATTR_PS_STATE])
6910 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
6912 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
6915 wdev = dev->ieee80211_ptr;
6917 if (!rdev->ops->set_power_mgmt)
6920 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
6922 if (state == wdev->ps)
6925 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
6931 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
6933 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6934 enum nl80211_ps_state ps_state;
6935 struct wireless_dev *wdev;
6936 struct net_device *dev = info->user_ptr[1];
6937 struct sk_buff *msg;
6941 wdev = dev->ieee80211_ptr;
6943 if (!rdev->ops->set_power_mgmt)
6946 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6950 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6951 NL80211_CMD_GET_POWER_SAVE);
6958 ps_state = NL80211_PS_ENABLED;
6960 ps_state = NL80211_PS_DISABLED;
6962 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
6963 goto nla_put_failure;
6965 genlmsg_end(msg, hdr);
6966 return genlmsg_reply(msg, info);
6975 static struct nla_policy
6976 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
6977 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
6978 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
6979 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
6980 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
6981 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
6982 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
6985 static int nl80211_set_cqm_txe(struct genl_info *info,
6986 u32 rate, u32 pkts, u32 intvl)
6988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6989 struct wireless_dev *wdev;
6990 struct net_device *dev = info->user_ptr[1];
6992 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
6995 wdev = dev->ieee80211_ptr;
6997 if (!rdev->ops->set_cqm_txe_config)
7000 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7001 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7004 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7007 static int nl80211_set_cqm_rssi(struct genl_info *info,
7008 s32 threshold, u32 hysteresis)
7010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7011 struct wireless_dev *wdev;
7012 struct net_device *dev = info->user_ptr[1];
7017 wdev = dev->ieee80211_ptr;
7019 if (!rdev->ops->set_cqm_rssi_config)
7022 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7023 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7026 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7029 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7031 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7035 cqm = info->attrs[NL80211_ATTR_CQM];
7041 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7042 nl80211_attr_cqm_policy);
7046 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7047 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7050 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7051 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7052 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
7053 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7054 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7055 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7056 u32 rate, pkts, intvl;
7057 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7058 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7059 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7060 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7068 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7071 struct net_device *dev = info->user_ptr[1];
7072 struct mesh_config cfg;
7073 struct mesh_setup setup;
7076 /* start with default */
7077 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7078 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7080 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7081 /* and parse parameters if given */
7082 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7087 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7088 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7091 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7092 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7094 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7095 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7096 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7099 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7100 setup.beacon_interval =
7101 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7102 if (setup.beacon_interval < 10 ||
7103 setup.beacon_interval > 10000)
7107 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7109 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7110 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7114 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7115 /* parse additional setup parameters if given */
7116 err = nl80211_parse_mesh_setup(info, &setup);
7121 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7122 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7126 /* cfg80211_join_mesh() will sort it out */
7127 setup.chandef.chan = NULL;
7130 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7133 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7136 struct net_device *dev = info->user_ptr[1];
7138 return cfg80211_leave_mesh(rdev, dev);
7142 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7143 struct cfg80211_registered_device *rdev)
7145 struct nlattr *nl_pats, *nl_pat;
7148 if (!rdev->wowlan->n_patterns)
7151 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7155 for (i = 0; i < rdev->wowlan->n_patterns; i++) {
7156 nl_pat = nla_nest_start(msg, i + 1);
7159 pat_len = rdev->wowlan->patterns[i].pattern_len;
7160 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7161 DIV_ROUND_UP(pat_len, 8),
7162 rdev->wowlan->patterns[i].mask) ||
7163 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7164 pat_len, rdev->wowlan->patterns[i].pattern) ||
7165 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7166 rdev->wowlan->patterns[i].pkt_offset))
7168 nla_nest_end(msg, nl_pat);
7170 nla_nest_end(msg, nl_pats);
7175 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7176 struct cfg80211_wowlan_tcp *tcp)
7178 struct nlattr *nl_tcp;
7183 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7187 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7188 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7189 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7190 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7191 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7192 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7193 tcp->payload_len, tcp->payload) ||
7194 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7195 tcp->data_interval) ||
7196 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7197 tcp->wake_len, tcp->wake_data) ||
7198 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7199 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7202 if (tcp->payload_seq.len &&
7203 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7204 sizeof(tcp->payload_seq), &tcp->payload_seq))
7207 if (tcp->payload_tok.len &&
7208 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7209 sizeof(tcp->payload_tok) + tcp->tokens_size,
7216 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7219 struct sk_buff *msg;
7221 u32 size = NLMSG_DEFAULT_SIZE;
7223 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7224 !rdev->wiphy.wowlan.tcp)
7227 if (rdev->wowlan && rdev->wowlan->tcp) {
7228 /* adjust size to have room for all the data */
7229 size += rdev->wowlan->tcp->tokens_size +
7230 rdev->wowlan->tcp->payload_len +
7231 rdev->wowlan->tcp->wake_len +
7232 rdev->wowlan->tcp->wake_len / 8;
7235 msg = nlmsg_new(size, GFP_KERNEL);
7239 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7240 NL80211_CMD_GET_WOWLAN);
7242 goto nla_put_failure;
7245 struct nlattr *nl_wowlan;
7247 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7249 goto nla_put_failure;
7251 if ((rdev->wowlan->any &&
7252 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7253 (rdev->wowlan->disconnect &&
7254 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7255 (rdev->wowlan->magic_pkt &&
7256 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7257 (rdev->wowlan->gtk_rekey_failure &&
7258 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7259 (rdev->wowlan->eap_identity_req &&
7260 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7261 (rdev->wowlan->four_way_handshake &&
7262 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7263 (rdev->wowlan->rfkill_release &&
7264 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7265 goto nla_put_failure;
7267 if (nl80211_send_wowlan_patterns(msg, rdev))
7268 goto nla_put_failure;
7270 if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp))
7271 goto nla_put_failure;
7273 nla_nest_end(msg, nl_wowlan);
7276 genlmsg_end(msg, hdr);
7277 return genlmsg_reply(msg, info);
7284 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7285 struct nlattr *attr,
7286 struct cfg80211_wowlan *trig)
7288 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7289 struct cfg80211_wowlan_tcp *cfg;
7290 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7291 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7293 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7296 if (!rdev->wiphy.wowlan.tcp)
7299 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7300 nla_data(attr), nla_len(attr),
7301 nl80211_wowlan_tcp_policy);
7305 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7306 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7307 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7308 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7309 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7310 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7311 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7312 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7315 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7316 if (data_size > rdev->wiphy.wowlan.tcp->data_payload_max)
7319 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7320 rdev->wiphy.wowlan.tcp->data_interval_max)
7323 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7324 if (wake_size > rdev->wiphy.wowlan.tcp->wake_payload_max)
7327 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7328 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7331 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7332 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7334 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7335 tokens_size = tokln - sizeof(*tok);
7337 if (!tok->len || tokens_size % tok->len)
7339 if (!rdev->wiphy.wowlan.tcp->tok)
7341 if (tok->len > rdev->wiphy.wowlan.tcp->tok->max_len)
7343 if (tok->len < rdev->wiphy.wowlan.tcp->tok->min_len)
7345 if (tokens_size > rdev->wiphy.wowlan.tcp->tok->bufsize)
7347 if (tok->offset + tok->len > data_size)
7351 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7352 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7353 if (!rdev->wiphy.wowlan.tcp->seq)
7355 if (seq->len == 0 || seq->len > 4)
7357 if (seq->len + seq->offset > data_size)
7361 size = sizeof(*cfg);
7363 size += wake_size + wake_mask_size;
7364 size += tokens_size;
7366 cfg = kzalloc(size, GFP_KERNEL);
7369 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7370 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7371 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7373 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7374 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7378 /* allocate a socket and port for it and use it */
7379 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7380 IPPROTO_TCP, &cfg->sock, 1);
7385 if (inet_csk_get_port(cfg->sock->sk, port)) {
7386 sock_release(cfg->sock);
7390 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7396 cfg->src_port = port;
7399 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7400 cfg->payload_len = data_size;
7401 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7402 memcpy((void *)cfg->payload,
7403 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7406 cfg->payload_seq = *seq;
7407 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7408 cfg->wake_len = wake_size;
7409 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7410 memcpy((void *)cfg->wake_data,
7411 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7413 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7414 data_size + wake_size;
7415 memcpy((void *)cfg->wake_mask,
7416 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7419 cfg->tokens_size = tokens_size;
7420 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7428 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7430 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7431 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7432 struct cfg80211_wowlan new_triggers = {};
7433 struct cfg80211_wowlan *ntrig;
7434 struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
7436 bool prev_enabled = rdev->wowlan;
7438 if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
7439 !rdev->wiphy.wowlan.tcp)
7442 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7443 cfg80211_rdev_free_wowlan(rdev);
7444 rdev->wowlan = NULL;
7448 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7449 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7450 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7451 nl80211_wowlan_policy);
7455 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7456 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7458 new_triggers.any = true;
7461 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7462 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7464 new_triggers.disconnect = true;
7467 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7468 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7470 new_triggers.magic_pkt = true;
7473 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7476 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7477 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7479 new_triggers.gtk_rekey_failure = true;
7482 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7483 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7485 new_triggers.eap_identity_req = true;
7488 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7489 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7491 new_triggers.four_way_handshake = true;
7494 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7495 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7497 new_triggers.rfkill_release = true;
7500 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7503 int rem, pat_len, mask_len, pkt_offset;
7504 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7506 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7509 if (n_patterns > wowlan->n_patterns)
7512 new_triggers.patterns = kcalloc(n_patterns,
7513 sizeof(new_triggers.patterns[0]),
7515 if (!new_triggers.patterns)
7518 new_triggers.n_patterns = n_patterns;
7521 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7523 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7524 nla_data(pat), nla_len(pat), NULL);
7526 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7527 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7529 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7530 mask_len = DIV_ROUND_UP(pat_len, 8);
7531 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7534 if (pat_len > wowlan->pattern_max_len ||
7535 pat_len < wowlan->pattern_min_len)
7538 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7541 pkt_offset = nla_get_u32(
7542 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7543 if (pkt_offset > wowlan->max_pkt_offset)
7545 new_triggers.patterns[i].pkt_offset = pkt_offset;
7547 new_triggers.patterns[i].mask =
7548 kmalloc(mask_len + pat_len, GFP_KERNEL);
7549 if (!new_triggers.patterns[i].mask) {
7553 new_triggers.patterns[i].pattern =
7554 new_triggers.patterns[i].mask + mask_len;
7555 memcpy(new_triggers.patterns[i].mask,
7556 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7558 new_triggers.patterns[i].pattern_len = pat_len;
7559 memcpy(new_triggers.patterns[i].pattern,
7560 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7566 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7567 err = nl80211_parse_wowlan_tcp(
7568 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7574 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7579 cfg80211_rdev_free_wowlan(rdev);
7580 rdev->wowlan = ntrig;
7583 if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan)
7584 rdev_set_wakeup(rdev, rdev->wowlan);
7588 for (i = 0; i < new_triggers.n_patterns; i++)
7589 kfree(new_triggers.patterns[i].mask);
7590 kfree(new_triggers.patterns);
7591 if (new_triggers.tcp && new_triggers.tcp->sock)
7592 sock_release(new_triggers.tcp->sock);
7593 kfree(new_triggers.tcp);
7598 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7601 struct net_device *dev = info->user_ptr[1];
7602 struct wireless_dev *wdev = dev->ieee80211_ptr;
7603 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
7604 struct cfg80211_gtk_rekey_data rekey_data;
7607 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
7610 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
7611 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
7612 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
7613 nl80211_rekey_policy);
7617 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
7619 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
7621 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
7624 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
7626 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
7628 memcpy(rekey_data.replay_ctr,
7629 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
7630 NL80211_REPLAY_CTR_LEN);
7633 if (!wdev->current_bss) {
7638 if (!rdev->ops->set_rekey_data) {
7643 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
7649 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
7650 struct genl_info *info)
7652 struct net_device *dev = info->user_ptr[1];
7653 struct wireless_dev *wdev = dev->ieee80211_ptr;
7655 if (wdev->iftype != NL80211_IFTYPE_AP &&
7656 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7659 if (wdev->ap_unexpected_nlportid)
7662 wdev->ap_unexpected_nlportid = info->snd_portid;
7666 static int nl80211_probe_client(struct sk_buff *skb,
7667 struct genl_info *info)
7669 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7670 struct net_device *dev = info->user_ptr[1];
7671 struct wireless_dev *wdev = dev->ieee80211_ptr;
7672 struct sk_buff *msg;
7678 if (wdev->iftype != NL80211_IFTYPE_AP &&
7679 wdev->iftype != NL80211_IFTYPE_P2P_GO)
7682 if (!info->attrs[NL80211_ATTR_MAC])
7685 if (!rdev->ops->probe_client)
7688 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7692 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7693 NL80211_CMD_PROBE_CLIENT);
7700 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
7702 err = rdev_probe_client(rdev, dev, addr, &cookie);
7706 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7707 goto nla_put_failure;
7709 genlmsg_end(msg, hdr);
7711 return genlmsg_reply(msg, info);
7720 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
7722 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7723 struct cfg80211_beacon_registration *reg, *nreg;
7726 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
7729 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
7733 /* First, check if already registered. */
7734 spin_lock_bh(&rdev->beacon_registrations_lock);
7735 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
7736 if (reg->nlportid == info->snd_portid) {
7741 /* Add it to the list */
7742 nreg->nlportid = info->snd_portid;
7743 list_add(&nreg->list, &rdev->beacon_registrations);
7745 spin_unlock_bh(&rdev->beacon_registrations_lock);
7749 spin_unlock_bh(&rdev->beacon_registrations_lock);
7754 static int nl80211_start_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];
7760 if (!rdev->ops->start_p2p_device)
7763 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7766 if (wdev->p2p_started)
7769 mutex_lock(&rdev->devlist_mtx);
7770 err = cfg80211_can_add_interface(rdev, wdev->iftype);
7771 mutex_unlock(&rdev->devlist_mtx);
7775 err = rdev_start_p2p_device(rdev, wdev);
7779 wdev->p2p_started = true;
7780 mutex_lock(&rdev->devlist_mtx);
7782 mutex_unlock(&rdev->devlist_mtx);
7787 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
7789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7790 struct wireless_dev *wdev = info->user_ptr[1];
7792 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
7795 if (!rdev->ops->stop_p2p_device)
7798 if (!wdev->p2p_started)
7801 rdev_stop_p2p_device(rdev, wdev);
7802 wdev->p2p_started = false;
7804 mutex_lock(&rdev->devlist_mtx);
7806 mutex_unlock(&rdev->devlist_mtx);
7808 if (WARN_ON(rdev->scan_req && rdev->scan_req->wdev == wdev)) {
7809 rdev->scan_req->aborted = true;
7810 ___cfg80211_scan_done(rdev, true);
7816 #define NL80211_FLAG_NEED_WIPHY 0x01
7817 #define NL80211_FLAG_NEED_NETDEV 0x02
7818 #define NL80211_FLAG_NEED_RTNL 0x04
7819 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
7820 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
7821 NL80211_FLAG_CHECK_NETDEV_UP)
7822 #define NL80211_FLAG_NEED_WDEV 0x10
7823 /* If a netdev is associated, it must be UP, P2P must be started */
7824 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
7825 NL80211_FLAG_CHECK_NETDEV_UP)
7827 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
7828 struct genl_info *info)
7830 struct cfg80211_registered_device *rdev;
7831 struct wireless_dev *wdev;
7832 struct net_device *dev;
7833 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
7838 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
7839 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
7843 return PTR_ERR(rdev);
7845 info->user_ptr[0] = rdev;
7846 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
7847 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7848 mutex_lock(&cfg80211_mutex);
7849 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
7852 mutex_unlock(&cfg80211_mutex);
7855 return PTR_ERR(wdev);
7859 rdev = wiphy_to_dev(wdev->wiphy);
7861 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
7863 mutex_unlock(&cfg80211_mutex);
7869 info->user_ptr[1] = dev;
7871 info->user_ptr[1] = wdev;
7875 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
7876 !netif_running(dev)) {
7877 mutex_unlock(&cfg80211_mutex);
7884 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
7885 if (!wdev->p2p_started) {
7886 mutex_unlock(&cfg80211_mutex);
7893 cfg80211_lock_rdev(rdev);
7895 mutex_unlock(&cfg80211_mutex);
7897 info->user_ptr[0] = rdev;
7903 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
7904 struct genl_info *info)
7906 if (info->user_ptr[0])
7907 cfg80211_unlock_rdev(info->user_ptr[0]);
7908 if (info->user_ptr[1]) {
7909 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
7910 struct wireless_dev *wdev = info->user_ptr[1];
7913 dev_put(wdev->netdev);
7915 dev_put(info->user_ptr[1]);
7918 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
7922 static struct genl_ops nl80211_ops[] = {
7924 .cmd = NL80211_CMD_GET_WIPHY,
7925 .doit = nl80211_get_wiphy,
7926 .dumpit = nl80211_dump_wiphy,
7927 .policy = nl80211_policy,
7928 /* can be retrieved by unprivileged users */
7929 .internal_flags = NL80211_FLAG_NEED_WIPHY,
7932 .cmd = NL80211_CMD_SET_WIPHY,
7933 .doit = nl80211_set_wiphy,
7934 .policy = nl80211_policy,
7935 .flags = GENL_ADMIN_PERM,
7936 .internal_flags = NL80211_FLAG_NEED_RTNL,
7939 .cmd = NL80211_CMD_GET_INTERFACE,
7940 .doit = nl80211_get_interface,
7941 .dumpit = nl80211_dump_interface,
7942 .policy = nl80211_policy,
7943 /* can be retrieved by unprivileged users */
7944 .internal_flags = NL80211_FLAG_NEED_WDEV,
7947 .cmd = NL80211_CMD_SET_INTERFACE,
7948 .doit = nl80211_set_interface,
7949 .policy = nl80211_policy,
7950 .flags = GENL_ADMIN_PERM,
7951 .internal_flags = NL80211_FLAG_NEED_NETDEV |
7952 NL80211_FLAG_NEED_RTNL,
7955 .cmd = NL80211_CMD_NEW_INTERFACE,
7956 .doit = nl80211_new_interface,
7957 .policy = nl80211_policy,
7958 .flags = GENL_ADMIN_PERM,
7959 .internal_flags = NL80211_FLAG_NEED_WIPHY |
7960 NL80211_FLAG_NEED_RTNL,
7963 .cmd = NL80211_CMD_DEL_INTERFACE,
7964 .doit = nl80211_del_interface,
7965 .policy = nl80211_policy,
7966 .flags = GENL_ADMIN_PERM,
7967 .internal_flags = NL80211_FLAG_NEED_WDEV |
7968 NL80211_FLAG_NEED_RTNL,
7971 .cmd = NL80211_CMD_GET_KEY,
7972 .doit = nl80211_get_key,
7973 .policy = nl80211_policy,
7974 .flags = GENL_ADMIN_PERM,
7975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7976 NL80211_FLAG_NEED_RTNL,
7979 .cmd = NL80211_CMD_SET_KEY,
7980 .doit = nl80211_set_key,
7981 .policy = nl80211_policy,
7982 .flags = GENL_ADMIN_PERM,
7983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7984 NL80211_FLAG_NEED_RTNL,
7987 .cmd = NL80211_CMD_NEW_KEY,
7988 .doit = nl80211_new_key,
7989 .policy = nl80211_policy,
7990 .flags = GENL_ADMIN_PERM,
7991 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
7992 NL80211_FLAG_NEED_RTNL,
7995 .cmd = NL80211_CMD_DEL_KEY,
7996 .doit = nl80211_del_key,
7997 .policy = nl80211_policy,
7998 .flags = GENL_ADMIN_PERM,
7999 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8000 NL80211_FLAG_NEED_RTNL,
8003 .cmd = NL80211_CMD_SET_BEACON,
8004 .policy = nl80211_policy,
8005 .flags = GENL_ADMIN_PERM,
8006 .doit = nl80211_set_beacon,
8007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8008 NL80211_FLAG_NEED_RTNL,
8011 .cmd = NL80211_CMD_START_AP,
8012 .policy = nl80211_policy,
8013 .flags = GENL_ADMIN_PERM,
8014 .doit = nl80211_start_ap,
8015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8016 NL80211_FLAG_NEED_RTNL,
8019 .cmd = NL80211_CMD_STOP_AP,
8020 .policy = nl80211_policy,
8021 .flags = GENL_ADMIN_PERM,
8022 .doit = nl80211_stop_ap,
8023 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8024 NL80211_FLAG_NEED_RTNL,
8027 .cmd = NL80211_CMD_GET_STATION,
8028 .doit = nl80211_get_station,
8029 .dumpit = nl80211_dump_station,
8030 .policy = nl80211_policy,
8031 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8032 NL80211_FLAG_NEED_RTNL,
8035 .cmd = NL80211_CMD_SET_STATION,
8036 .doit = nl80211_set_station,
8037 .policy = nl80211_policy,
8038 .flags = GENL_ADMIN_PERM,
8039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8040 NL80211_FLAG_NEED_RTNL,
8043 .cmd = NL80211_CMD_NEW_STATION,
8044 .doit = nl80211_new_station,
8045 .policy = nl80211_policy,
8046 .flags = GENL_ADMIN_PERM,
8047 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8048 NL80211_FLAG_NEED_RTNL,
8051 .cmd = NL80211_CMD_DEL_STATION,
8052 .doit = nl80211_del_station,
8053 .policy = nl80211_policy,
8054 .flags = GENL_ADMIN_PERM,
8055 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8056 NL80211_FLAG_NEED_RTNL,
8059 .cmd = NL80211_CMD_GET_MPATH,
8060 .doit = nl80211_get_mpath,
8061 .dumpit = nl80211_dump_mpath,
8062 .policy = nl80211_policy,
8063 .flags = GENL_ADMIN_PERM,
8064 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8065 NL80211_FLAG_NEED_RTNL,
8068 .cmd = NL80211_CMD_SET_MPATH,
8069 .doit = nl80211_set_mpath,
8070 .policy = nl80211_policy,
8071 .flags = GENL_ADMIN_PERM,
8072 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8073 NL80211_FLAG_NEED_RTNL,
8076 .cmd = NL80211_CMD_NEW_MPATH,
8077 .doit = nl80211_new_mpath,
8078 .policy = nl80211_policy,
8079 .flags = GENL_ADMIN_PERM,
8080 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8081 NL80211_FLAG_NEED_RTNL,
8084 .cmd = NL80211_CMD_DEL_MPATH,
8085 .doit = nl80211_del_mpath,
8086 .policy = nl80211_policy,
8087 .flags = GENL_ADMIN_PERM,
8088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8089 NL80211_FLAG_NEED_RTNL,
8092 .cmd = NL80211_CMD_SET_BSS,
8093 .doit = nl80211_set_bss,
8094 .policy = nl80211_policy,
8095 .flags = GENL_ADMIN_PERM,
8096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8097 NL80211_FLAG_NEED_RTNL,
8100 .cmd = NL80211_CMD_GET_REG,
8101 .doit = nl80211_get_reg,
8102 .policy = nl80211_policy,
8103 /* can be retrieved by unprivileged users */
8106 .cmd = NL80211_CMD_SET_REG,
8107 .doit = nl80211_set_reg,
8108 .policy = nl80211_policy,
8109 .flags = GENL_ADMIN_PERM,
8112 .cmd = NL80211_CMD_REQ_SET_REG,
8113 .doit = nl80211_req_set_reg,
8114 .policy = nl80211_policy,
8115 .flags = GENL_ADMIN_PERM,
8118 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8119 .doit = nl80211_get_mesh_config,
8120 .policy = nl80211_policy,
8121 /* can be retrieved by unprivileged users */
8122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8123 NL80211_FLAG_NEED_RTNL,
8126 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8127 .doit = nl80211_update_mesh_config,
8128 .policy = nl80211_policy,
8129 .flags = GENL_ADMIN_PERM,
8130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8131 NL80211_FLAG_NEED_RTNL,
8134 .cmd = NL80211_CMD_TRIGGER_SCAN,
8135 .doit = nl80211_trigger_scan,
8136 .policy = nl80211_policy,
8137 .flags = GENL_ADMIN_PERM,
8138 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8139 NL80211_FLAG_NEED_RTNL,
8142 .cmd = NL80211_CMD_GET_SCAN,
8143 .policy = nl80211_policy,
8144 .dumpit = nl80211_dump_scan,
8147 .cmd = NL80211_CMD_START_SCHED_SCAN,
8148 .doit = nl80211_start_sched_scan,
8149 .policy = nl80211_policy,
8150 .flags = GENL_ADMIN_PERM,
8151 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8152 NL80211_FLAG_NEED_RTNL,
8155 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8156 .doit = nl80211_stop_sched_scan,
8157 .policy = nl80211_policy,
8158 .flags = GENL_ADMIN_PERM,
8159 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8160 NL80211_FLAG_NEED_RTNL,
8163 .cmd = NL80211_CMD_AUTHENTICATE,
8164 .doit = nl80211_authenticate,
8165 .policy = nl80211_policy,
8166 .flags = GENL_ADMIN_PERM,
8167 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8168 NL80211_FLAG_NEED_RTNL,
8171 .cmd = NL80211_CMD_ASSOCIATE,
8172 .doit = nl80211_associate,
8173 .policy = nl80211_policy,
8174 .flags = GENL_ADMIN_PERM,
8175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8176 NL80211_FLAG_NEED_RTNL,
8179 .cmd = NL80211_CMD_DEAUTHENTICATE,
8180 .doit = nl80211_deauthenticate,
8181 .policy = nl80211_policy,
8182 .flags = GENL_ADMIN_PERM,
8183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8184 NL80211_FLAG_NEED_RTNL,
8187 .cmd = NL80211_CMD_DISASSOCIATE,
8188 .doit = nl80211_disassociate,
8189 .policy = nl80211_policy,
8190 .flags = GENL_ADMIN_PERM,
8191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8192 NL80211_FLAG_NEED_RTNL,
8195 .cmd = NL80211_CMD_JOIN_IBSS,
8196 .doit = nl80211_join_ibss,
8197 .policy = nl80211_policy,
8198 .flags = GENL_ADMIN_PERM,
8199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8200 NL80211_FLAG_NEED_RTNL,
8203 .cmd = NL80211_CMD_LEAVE_IBSS,
8204 .doit = nl80211_leave_ibss,
8205 .policy = nl80211_policy,
8206 .flags = GENL_ADMIN_PERM,
8207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8208 NL80211_FLAG_NEED_RTNL,
8210 #ifdef CONFIG_NL80211_TESTMODE
8212 .cmd = NL80211_CMD_TESTMODE,
8213 .doit = nl80211_testmode_do,
8214 .dumpit = nl80211_testmode_dump,
8215 .policy = nl80211_policy,
8216 .flags = GENL_ADMIN_PERM,
8217 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8218 NL80211_FLAG_NEED_RTNL,
8222 .cmd = NL80211_CMD_CONNECT,
8223 .doit = nl80211_connect,
8224 .policy = nl80211_policy,
8225 .flags = GENL_ADMIN_PERM,
8226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8227 NL80211_FLAG_NEED_RTNL,
8230 .cmd = NL80211_CMD_DISCONNECT,
8231 .doit = nl80211_disconnect,
8232 .policy = nl80211_policy,
8233 .flags = GENL_ADMIN_PERM,
8234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8235 NL80211_FLAG_NEED_RTNL,
8238 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8239 .doit = nl80211_wiphy_netns,
8240 .policy = nl80211_policy,
8241 .flags = GENL_ADMIN_PERM,
8242 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8243 NL80211_FLAG_NEED_RTNL,
8246 .cmd = NL80211_CMD_GET_SURVEY,
8247 .policy = nl80211_policy,
8248 .dumpit = nl80211_dump_survey,
8251 .cmd = NL80211_CMD_SET_PMKSA,
8252 .doit = nl80211_setdel_pmksa,
8253 .policy = nl80211_policy,
8254 .flags = GENL_ADMIN_PERM,
8255 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8256 NL80211_FLAG_NEED_RTNL,
8259 .cmd = NL80211_CMD_DEL_PMKSA,
8260 .doit = nl80211_setdel_pmksa,
8261 .policy = nl80211_policy,
8262 .flags = GENL_ADMIN_PERM,
8263 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8264 NL80211_FLAG_NEED_RTNL,
8267 .cmd = NL80211_CMD_FLUSH_PMKSA,
8268 .doit = nl80211_flush_pmksa,
8269 .policy = nl80211_policy,
8270 .flags = GENL_ADMIN_PERM,
8271 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8272 NL80211_FLAG_NEED_RTNL,
8275 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8276 .doit = nl80211_remain_on_channel,
8277 .policy = nl80211_policy,
8278 .flags = GENL_ADMIN_PERM,
8279 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8280 NL80211_FLAG_NEED_RTNL,
8283 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8284 .doit = nl80211_cancel_remain_on_channel,
8285 .policy = nl80211_policy,
8286 .flags = GENL_ADMIN_PERM,
8287 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8288 NL80211_FLAG_NEED_RTNL,
8291 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8292 .doit = nl80211_set_tx_bitrate_mask,
8293 .policy = nl80211_policy,
8294 .flags = GENL_ADMIN_PERM,
8295 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8296 NL80211_FLAG_NEED_RTNL,
8299 .cmd = NL80211_CMD_REGISTER_FRAME,
8300 .doit = nl80211_register_mgmt,
8301 .policy = nl80211_policy,
8302 .flags = GENL_ADMIN_PERM,
8303 .internal_flags = NL80211_FLAG_NEED_WDEV |
8304 NL80211_FLAG_NEED_RTNL,
8307 .cmd = NL80211_CMD_FRAME,
8308 .doit = nl80211_tx_mgmt,
8309 .policy = nl80211_policy,
8310 .flags = GENL_ADMIN_PERM,
8311 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8312 NL80211_FLAG_NEED_RTNL,
8315 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8316 .doit = nl80211_tx_mgmt_cancel_wait,
8317 .policy = nl80211_policy,
8318 .flags = GENL_ADMIN_PERM,
8319 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8320 NL80211_FLAG_NEED_RTNL,
8323 .cmd = NL80211_CMD_SET_POWER_SAVE,
8324 .doit = nl80211_set_power_save,
8325 .policy = nl80211_policy,
8326 .flags = GENL_ADMIN_PERM,
8327 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8328 NL80211_FLAG_NEED_RTNL,
8331 .cmd = NL80211_CMD_GET_POWER_SAVE,
8332 .doit = nl80211_get_power_save,
8333 .policy = nl80211_policy,
8334 /* can be retrieved by unprivileged users */
8335 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8336 NL80211_FLAG_NEED_RTNL,
8339 .cmd = NL80211_CMD_SET_CQM,
8340 .doit = nl80211_set_cqm,
8341 .policy = nl80211_policy,
8342 .flags = GENL_ADMIN_PERM,
8343 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8344 NL80211_FLAG_NEED_RTNL,
8347 .cmd = NL80211_CMD_SET_CHANNEL,
8348 .doit = nl80211_set_channel,
8349 .policy = nl80211_policy,
8350 .flags = GENL_ADMIN_PERM,
8351 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8352 NL80211_FLAG_NEED_RTNL,
8355 .cmd = NL80211_CMD_SET_WDS_PEER,
8356 .doit = nl80211_set_wds_peer,
8357 .policy = nl80211_policy,
8358 .flags = GENL_ADMIN_PERM,
8359 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8360 NL80211_FLAG_NEED_RTNL,
8363 .cmd = NL80211_CMD_JOIN_MESH,
8364 .doit = nl80211_join_mesh,
8365 .policy = nl80211_policy,
8366 .flags = GENL_ADMIN_PERM,
8367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8368 NL80211_FLAG_NEED_RTNL,
8371 .cmd = NL80211_CMD_LEAVE_MESH,
8372 .doit = nl80211_leave_mesh,
8373 .policy = nl80211_policy,
8374 .flags = GENL_ADMIN_PERM,
8375 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8376 NL80211_FLAG_NEED_RTNL,
8380 .cmd = NL80211_CMD_GET_WOWLAN,
8381 .doit = nl80211_get_wowlan,
8382 .policy = nl80211_policy,
8383 /* can be retrieved by unprivileged users */
8384 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8385 NL80211_FLAG_NEED_RTNL,
8388 .cmd = NL80211_CMD_SET_WOWLAN,
8389 .doit = nl80211_set_wowlan,
8390 .policy = nl80211_policy,
8391 .flags = GENL_ADMIN_PERM,
8392 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8393 NL80211_FLAG_NEED_RTNL,
8397 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8398 .doit = nl80211_set_rekey_data,
8399 .policy = nl80211_policy,
8400 .flags = GENL_ADMIN_PERM,
8401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8402 NL80211_FLAG_NEED_RTNL,
8405 .cmd = NL80211_CMD_TDLS_MGMT,
8406 .doit = nl80211_tdls_mgmt,
8407 .policy = nl80211_policy,
8408 .flags = GENL_ADMIN_PERM,
8409 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8410 NL80211_FLAG_NEED_RTNL,
8413 .cmd = NL80211_CMD_TDLS_OPER,
8414 .doit = nl80211_tdls_oper,
8415 .policy = nl80211_policy,
8416 .flags = GENL_ADMIN_PERM,
8417 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8418 NL80211_FLAG_NEED_RTNL,
8421 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8422 .doit = nl80211_register_unexpected_frame,
8423 .policy = nl80211_policy,
8424 .flags = GENL_ADMIN_PERM,
8425 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8426 NL80211_FLAG_NEED_RTNL,
8429 .cmd = NL80211_CMD_PROBE_CLIENT,
8430 .doit = nl80211_probe_client,
8431 .policy = nl80211_policy,
8432 .flags = GENL_ADMIN_PERM,
8433 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8434 NL80211_FLAG_NEED_RTNL,
8437 .cmd = NL80211_CMD_REGISTER_BEACONS,
8438 .doit = nl80211_register_beacons,
8439 .policy = nl80211_policy,
8440 .flags = GENL_ADMIN_PERM,
8441 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8442 NL80211_FLAG_NEED_RTNL,
8445 .cmd = NL80211_CMD_SET_NOACK_MAP,
8446 .doit = nl80211_set_noack_map,
8447 .policy = nl80211_policy,
8448 .flags = GENL_ADMIN_PERM,
8449 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8450 NL80211_FLAG_NEED_RTNL,
8453 .cmd = NL80211_CMD_START_P2P_DEVICE,
8454 .doit = nl80211_start_p2p_device,
8455 .policy = nl80211_policy,
8456 .flags = GENL_ADMIN_PERM,
8457 .internal_flags = NL80211_FLAG_NEED_WDEV |
8458 NL80211_FLAG_NEED_RTNL,
8461 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8462 .doit = nl80211_stop_p2p_device,
8463 .policy = nl80211_policy,
8464 .flags = GENL_ADMIN_PERM,
8465 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8466 NL80211_FLAG_NEED_RTNL,
8469 .cmd = NL80211_CMD_SET_MCAST_RATE,
8470 .doit = nl80211_set_mcast_rate,
8471 .policy = nl80211_policy,
8472 .flags = GENL_ADMIN_PERM,
8473 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8474 NL80211_FLAG_NEED_RTNL,
8477 .cmd = NL80211_CMD_SET_MAC_ACL,
8478 .doit = nl80211_set_mac_acl,
8479 .policy = nl80211_policy,
8480 .flags = GENL_ADMIN_PERM,
8481 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8482 NL80211_FLAG_NEED_RTNL,
8485 .cmd = NL80211_CMD_RADAR_DETECT,
8486 .doit = nl80211_start_radar_detection,
8487 .policy = nl80211_policy,
8488 .flags = GENL_ADMIN_PERM,
8489 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8490 NL80211_FLAG_NEED_RTNL,
8494 static struct genl_multicast_group nl80211_mlme_mcgrp = {
8498 /* multicast groups */
8499 static struct genl_multicast_group nl80211_config_mcgrp = {
8502 static struct genl_multicast_group nl80211_scan_mcgrp = {
8505 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
8506 .name = "regulatory",
8509 /* notification functions */
8511 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
8513 struct sk_buff *msg;
8515 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8519 if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
8524 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8525 nl80211_config_mcgrp.id, GFP_KERNEL);
8528 static int nl80211_add_scan_req(struct sk_buff *msg,
8529 struct cfg80211_registered_device *rdev)
8531 struct cfg80211_scan_request *req = rdev->scan_req;
8532 struct nlattr *nest;
8535 ASSERT_RDEV_LOCK(rdev);
8540 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
8542 goto nla_put_failure;
8543 for (i = 0; i < req->n_ssids; i++) {
8544 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
8545 goto nla_put_failure;
8547 nla_nest_end(msg, nest);
8549 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8551 goto nla_put_failure;
8552 for (i = 0; i < req->n_channels; i++) {
8553 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
8554 goto nla_put_failure;
8556 nla_nest_end(msg, nest);
8559 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
8560 goto nla_put_failure;
8563 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
8570 static int nl80211_send_scan_msg(struct sk_buff *msg,
8571 struct cfg80211_registered_device *rdev,
8572 struct wireless_dev *wdev,
8573 u32 portid, u32 seq, int flags,
8578 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8582 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8583 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
8584 wdev->netdev->ifindex)) ||
8585 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
8586 goto nla_put_failure;
8588 /* ignore errors and send incomplete event anyway */
8589 nl80211_add_scan_req(msg, rdev);
8591 return genlmsg_end(msg, hdr);
8594 genlmsg_cancel(msg, hdr);
8599 nl80211_send_sched_scan_msg(struct sk_buff *msg,
8600 struct cfg80211_registered_device *rdev,
8601 struct net_device *netdev,
8602 u32 portid, u32 seq, int flags, u32 cmd)
8606 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
8610 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8611 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
8612 goto nla_put_failure;
8614 return genlmsg_end(msg, hdr);
8617 genlmsg_cancel(msg, hdr);
8621 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
8622 struct wireless_dev *wdev)
8624 struct sk_buff *msg;
8626 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8630 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8631 NL80211_CMD_TRIGGER_SCAN) < 0) {
8636 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8637 nl80211_scan_mcgrp.id, GFP_KERNEL);
8640 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
8641 struct wireless_dev *wdev)
8643 struct sk_buff *msg;
8645 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8649 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8650 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
8655 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8656 nl80211_scan_mcgrp.id, GFP_KERNEL);
8659 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
8660 struct wireless_dev *wdev)
8662 struct sk_buff *msg;
8664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8668 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
8669 NL80211_CMD_SCAN_ABORTED) < 0) {
8674 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8675 nl80211_scan_mcgrp.id, GFP_KERNEL);
8678 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
8679 struct net_device *netdev)
8681 struct sk_buff *msg;
8683 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8687 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
8688 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
8693 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8694 nl80211_scan_mcgrp.id, GFP_KERNEL);
8697 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
8698 struct net_device *netdev, u32 cmd)
8700 struct sk_buff *msg;
8702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8706 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
8711 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8712 nl80211_scan_mcgrp.id, GFP_KERNEL);
8716 * This can happen on global regulatory changes or device specific settings
8717 * based on custom world regulatory domains.
8719 void nl80211_send_reg_change_event(struct regulatory_request *request)
8721 struct sk_buff *msg;
8724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8728 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
8734 /* Userspace can always count this one always being set */
8735 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
8736 goto nla_put_failure;
8738 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
8739 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8740 NL80211_REGDOM_TYPE_WORLD))
8741 goto nla_put_failure;
8742 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
8743 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8744 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
8745 goto nla_put_failure;
8746 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
8747 request->intersect) {
8748 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8749 NL80211_REGDOM_TYPE_INTERSECTION))
8750 goto nla_put_failure;
8752 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
8753 NL80211_REGDOM_TYPE_COUNTRY) ||
8754 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
8756 goto nla_put_failure;
8759 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
8760 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
8761 goto nla_put_failure;
8763 genlmsg_end(msg, hdr);
8766 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
8773 genlmsg_cancel(msg, hdr);
8777 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
8778 struct net_device *netdev,
8779 const u8 *buf, size_t len,
8780 enum nl80211_commands cmd, gfp_t gfp)
8782 struct sk_buff *msg;
8785 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8789 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8795 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8796 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8797 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
8798 goto nla_put_failure;
8800 genlmsg_end(msg, hdr);
8802 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8803 nl80211_mlme_mcgrp.id, gfp);
8807 genlmsg_cancel(msg, hdr);
8811 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
8812 struct net_device *netdev, const u8 *buf,
8813 size_t len, gfp_t gfp)
8815 nl80211_send_mlme_event(rdev, netdev, buf, len,
8816 NL80211_CMD_AUTHENTICATE, gfp);
8819 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
8820 struct net_device *netdev, const u8 *buf,
8821 size_t len, gfp_t gfp)
8823 nl80211_send_mlme_event(rdev, netdev, buf, len,
8824 NL80211_CMD_ASSOCIATE, gfp);
8827 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
8828 struct net_device *netdev, const u8 *buf,
8829 size_t len, gfp_t gfp)
8831 nl80211_send_mlme_event(rdev, netdev, buf, len,
8832 NL80211_CMD_DEAUTHENTICATE, gfp);
8835 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
8836 struct net_device *netdev, const u8 *buf,
8837 size_t len, gfp_t gfp)
8839 nl80211_send_mlme_event(rdev, netdev, buf, len,
8840 NL80211_CMD_DISASSOCIATE, gfp);
8843 void nl80211_send_unprot_deauth(struct cfg80211_registered_device *rdev,
8844 struct net_device *netdev, const u8 *buf,
8845 size_t len, gfp_t gfp)
8847 nl80211_send_mlme_event(rdev, netdev, buf, len,
8848 NL80211_CMD_UNPROT_DEAUTHENTICATE, gfp);
8851 void nl80211_send_unprot_disassoc(struct cfg80211_registered_device *rdev,
8852 struct net_device *netdev, const u8 *buf,
8853 size_t len, gfp_t gfp)
8855 nl80211_send_mlme_event(rdev, netdev, buf, len,
8856 NL80211_CMD_UNPROT_DISASSOCIATE, gfp);
8859 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
8860 struct net_device *netdev, int cmd,
8861 const u8 *addr, gfp_t gfp)
8863 struct sk_buff *msg;
8866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8870 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
8876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8877 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8878 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
8879 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
8880 goto nla_put_failure;
8882 genlmsg_end(msg, hdr);
8884 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8885 nl80211_mlme_mcgrp.id, gfp);
8889 genlmsg_cancel(msg, hdr);
8893 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
8894 struct net_device *netdev, const u8 *addr,
8897 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
8901 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
8902 struct net_device *netdev, const u8 *addr,
8905 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
8909 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
8910 struct net_device *netdev, const u8 *bssid,
8911 const u8 *req_ie, size_t req_ie_len,
8912 const u8 *resp_ie, size_t resp_ie_len,
8913 u16 status, gfp_t gfp)
8915 struct sk_buff *msg;
8918 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8922 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
8928 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8929 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8930 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
8931 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
8933 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8935 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8936 goto nla_put_failure;
8938 genlmsg_end(msg, hdr);
8940 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8941 nl80211_mlme_mcgrp.id, gfp);
8945 genlmsg_cancel(msg, hdr);
8950 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
8951 struct net_device *netdev, const u8 *bssid,
8952 const u8 *req_ie, size_t req_ie_len,
8953 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
8955 struct sk_buff *msg;
8958 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
8962 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
8968 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
8969 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
8970 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
8972 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
8974 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
8975 goto nla_put_failure;
8977 genlmsg_end(msg, hdr);
8979 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
8980 nl80211_mlme_mcgrp.id, gfp);
8984 genlmsg_cancel(msg, hdr);
8989 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
8990 struct net_device *netdev, u16 reason,
8991 const u8 *ie, size_t ie_len, bool from_ap)
8993 struct sk_buff *msg;
8996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9000 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9006 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9007 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9008 (from_ap && reason &&
9009 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9011 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9012 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9013 goto nla_put_failure;
9015 genlmsg_end(msg, hdr);
9017 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9018 nl80211_mlme_mcgrp.id, GFP_KERNEL);
9022 genlmsg_cancel(msg, hdr);
9027 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9028 struct net_device *netdev, const u8 *bssid,
9031 struct sk_buff *msg;
9034 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9038 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9044 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9045 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9046 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9047 goto nla_put_failure;
9049 genlmsg_end(msg, hdr);
9051 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9052 nl80211_mlme_mcgrp.id, gfp);
9056 genlmsg_cancel(msg, hdr);
9060 void nl80211_send_new_peer_candidate(struct cfg80211_registered_device *rdev,
9061 struct net_device *netdev,
9062 const u8 *macaddr, const u8* ie, u8 ie_len,
9065 struct sk_buff *msg;
9068 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9072 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9078 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9079 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9080 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, macaddr) ||
9082 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9083 goto nla_put_failure;
9085 genlmsg_end(msg, hdr);
9087 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9088 nl80211_mlme_mcgrp.id, gfp);
9092 genlmsg_cancel(msg, hdr);
9096 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9097 struct net_device *netdev, const u8 *addr,
9098 enum nl80211_key_type key_type, int key_id,
9099 const u8 *tsc, gfp_t gfp)
9101 struct sk_buff *msg;
9104 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9108 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9114 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9115 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9116 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9117 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9119 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9120 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9121 goto nla_put_failure;
9123 genlmsg_end(msg, hdr);
9125 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9126 nl80211_mlme_mcgrp.id, gfp);
9130 genlmsg_cancel(msg, hdr);
9134 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9135 struct ieee80211_channel *channel_before,
9136 struct ieee80211_channel *channel_after)
9138 struct sk_buff *msg;
9140 struct nlattr *nl_freq;
9142 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9146 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9153 * Since we are applying the beacon hint to a wiphy we know its
9154 * wiphy_idx is valid
9156 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9157 goto nla_put_failure;
9160 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9162 goto nla_put_failure;
9163 if (nl80211_msg_put_channel(msg, channel_before))
9164 goto nla_put_failure;
9165 nla_nest_end(msg, nl_freq);
9168 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9170 goto nla_put_failure;
9171 if (nl80211_msg_put_channel(msg, channel_after))
9172 goto nla_put_failure;
9173 nla_nest_end(msg, nl_freq);
9175 genlmsg_end(msg, hdr);
9178 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9185 genlmsg_cancel(msg, hdr);
9189 static void nl80211_send_remain_on_chan_event(
9190 int cmd, struct cfg80211_registered_device *rdev,
9191 struct wireless_dev *wdev, u64 cookie,
9192 struct ieee80211_channel *chan,
9193 unsigned int duration, gfp_t gfp)
9195 struct sk_buff *msg;
9198 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9202 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9208 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9209 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9210 wdev->netdev->ifindex)) ||
9211 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9212 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9213 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9214 NL80211_CHAN_NO_HT) ||
9215 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9216 goto nla_put_failure;
9218 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9219 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9220 goto nla_put_failure;
9222 genlmsg_end(msg, hdr);
9224 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9225 nl80211_mlme_mcgrp.id, gfp);
9229 genlmsg_cancel(msg, hdr);
9233 void nl80211_send_remain_on_channel(struct cfg80211_registered_device *rdev,
9234 struct wireless_dev *wdev, u64 cookie,
9235 struct ieee80211_channel *chan,
9236 unsigned int duration, gfp_t gfp)
9238 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9239 rdev, wdev, cookie, chan,
9243 void nl80211_send_remain_on_channel_cancel(
9244 struct cfg80211_registered_device *rdev,
9245 struct wireless_dev *wdev,
9246 u64 cookie, struct ieee80211_channel *chan, gfp_t gfp)
9248 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9249 rdev, wdev, cookie, chan, 0, gfp);
9252 void nl80211_send_sta_event(struct cfg80211_registered_device *rdev,
9253 struct net_device *dev, const u8 *mac_addr,
9254 struct station_info *sinfo, gfp_t gfp)
9256 struct sk_buff *msg;
9258 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9262 if (nl80211_send_station(msg, 0, 0, 0,
9263 rdev, dev, mac_addr, sinfo) < 0) {
9268 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9269 nl80211_mlme_mcgrp.id, gfp);
9272 void nl80211_send_sta_del_event(struct cfg80211_registered_device *rdev,
9273 struct net_device *dev, const u8 *mac_addr,
9276 struct sk_buff *msg;
9279 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9283 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9289 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9290 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9291 goto nla_put_failure;
9293 genlmsg_end(msg, hdr);
9295 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9296 nl80211_mlme_mcgrp.id, gfp);
9300 genlmsg_cancel(msg, hdr);
9304 void nl80211_send_conn_failed_event(struct cfg80211_registered_device *rdev,
9305 struct net_device *dev, const u8 *mac_addr,
9306 enum nl80211_connect_failed_reason reason,
9309 struct sk_buff *msg;
9312 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9316 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9322 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9323 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9324 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9325 goto nla_put_failure;
9327 genlmsg_end(msg, hdr);
9329 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9330 nl80211_mlme_mcgrp.id, gfp);
9334 genlmsg_cancel(msg, hdr);
9338 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9339 const u8 *addr, gfp_t gfp)
9341 struct wireless_dev *wdev = dev->ieee80211_ptr;
9342 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9343 struct sk_buff *msg;
9346 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9351 msg = nlmsg_new(100, gfp);
9355 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9361 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9362 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9363 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9364 goto nla_put_failure;
9366 err = genlmsg_end(msg, hdr);
9372 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9376 genlmsg_cancel(msg, hdr);
9381 bool nl80211_unexpected_frame(struct net_device *dev, const u8 *addr, gfp_t gfp)
9383 return __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9387 bool nl80211_unexpected_4addr_frame(struct net_device *dev,
9388 const u8 *addr, gfp_t gfp)
9390 return __nl80211_unexpected_frame(dev,
9391 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9395 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9396 struct wireless_dev *wdev, u32 nlportid,
9397 int freq, int sig_dbm,
9398 const u8 *buf, size_t len, gfp_t gfp)
9400 struct net_device *netdev = wdev->netdev;
9401 struct sk_buff *msg;
9404 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9408 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9414 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9415 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9416 netdev->ifindex)) ||
9417 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9419 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9420 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9421 goto nla_put_failure;
9423 genlmsg_end(msg, hdr);
9425 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9428 genlmsg_cancel(msg, hdr);
9433 void nl80211_send_mgmt_tx_status(struct cfg80211_registered_device *rdev,
9434 struct wireless_dev *wdev, u64 cookie,
9435 const u8 *buf, size_t len, bool ack,
9438 struct net_device *netdev = wdev->netdev;
9439 struct sk_buff *msg;
9442 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9446 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
9452 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9453 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9454 netdev->ifindex)) ||
9455 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
9456 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9457 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
9458 goto nla_put_failure;
9460 genlmsg_end(msg, hdr);
9462 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
9466 genlmsg_cancel(msg, hdr);
9471 nl80211_send_cqm_rssi_notify(struct cfg80211_registered_device *rdev,
9472 struct net_device *netdev,
9473 enum nl80211_cqm_rssi_threshold_event rssi_event,
9476 struct sk_buff *msg;
9477 struct nlattr *pinfoattr;
9480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9484 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9490 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9492 goto nla_put_failure;
9494 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9496 goto nla_put_failure;
9498 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
9500 goto nla_put_failure;
9502 nla_nest_end(msg, pinfoattr);
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_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
9516 struct net_device *netdev, const u8 *bssid,
9517 const u8 *replay_ctr, gfp_t gfp)
9519 struct sk_buff *msg;
9520 struct nlattr *rekey_attr;
9523 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9527 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
9533 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9534 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9535 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9536 goto nla_put_failure;
9538 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
9540 goto nla_put_failure;
9542 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
9543 NL80211_REPLAY_CTR_LEN, replay_ctr))
9544 goto nla_put_failure;
9546 nla_nest_end(msg, rekey_attr);
9548 genlmsg_end(msg, hdr);
9550 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9551 nl80211_mlme_mcgrp.id, gfp);
9555 genlmsg_cancel(msg, hdr);
9559 void nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
9560 struct net_device *netdev, int index,
9561 const u8 *bssid, bool preauth, gfp_t gfp)
9563 struct sk_buff *msg;
9564 struct nlattr *attr;
9567 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9571 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
9577 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9578 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9579 goto nla_put_failure;
9581 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
9583 goto nla_put_failure;
9585 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
9586 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
9588 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
9589 goto nla_put_failure;
9591 nla_nest_end(msg, attr);
9593 genlmsg_end(msg, hdr);
9595 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9596 nl80211_mlme_mcgrp.id, gfp);
9600 genlmsg_cancel(msg, hdr);
9604 void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
9605 struct net_device *netdev,
9606 struct cfg80211_chan_def *chandef, gfp_t gfp)
9608 struct sk_buff *msg;
9611 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9615 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
9621 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9622 goto nla_put_failure;
9624 if (nl80211_send_chandef(msg, chandef))
9625 goto nla_put_failure;
9627 genlmsg_end(msg, hdr);
9629 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9630 nl80211_mlme_mcgrp.id, gfp);
9634 genlmsg_cancel(msg, hdr);
9639 nl80211_send_cqm_txe_notify(struct cfg80211_registered_device *rdev,
9640 struct net_device *netdev, const u8 *peer,
9641 u32 num_packets, u32 rate, u32 intvl, gfp_t gfp)
9643 struct sk_buff *msg;
9644 struct nlattr *pinfoattr;
9647 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9651 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9657 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9658 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9659 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9660 goto nla_put_failure;
9662 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9664 goto nla_put_failure;
9666 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
9667 goto nla_put_failure;
9669 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
9670 goto nla_put_failure;
9672 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
9673 goto nla_put_failure;
9675 nla_nest_end(msg, pinfoattr);
9677 genlmsg_end(msg, hdr);
9679 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9680 nl80211_mlme_mcgrp.id, gfp);
9684 genlmsg_cancel(msg, hdr);
9689 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
9690 struct cfg80211_chan_def *chandef,
9691 enum nl80211_radar_event event,
9692 struct net_device *netdev, gfp_t gfp)
9694 struct sk_buff *msg;
9697 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9701 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
9707 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
9708 goto nla_put_failure;
9710 /* NOP and radar events don't need a netdev parameter */
9712 struct wireless_dev *wdev = netdev->ieee80211_ptr;
9714 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9715 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9716 goto nla_put_failure;
9719 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
9720 goto nla_put_failure;
9722 if (nl80211_send_chandef(msg, chandef))
9723 goto nla_put_failure;
9725 if (genlmsg_end(msg, hdr) < 0) {
9730 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9731 nl80211_mlme_mcgrp.id, gfp);
9735 genlmsg_cancel(msg, hdr);
9740 nl80211_send_cqm_pktloss_notify(struct cfg80211_registered_device *rdev,
9741 struct net_device *netdev, const u8 *peer,
9742 u32 num_packets, gfp_t gfp)
9744 struct sk_buff *msg;
9745 struct nlattr *pinfoattr;
9748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
9758 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9759 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9760 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
9761 goto nla_put_failure;
9763 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
9765 goto nla_put_failure;
9767 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
9768 goto nla_put_failure;
9770 nla_nest_end(msg, pinfoattr);
9772 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);
9783 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
9784 u64 cookie, bool acked, gfp_t gfp)
9786 struct wireless_dev *wdev = dev->ieee80211_ptr;
9787 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9788 struct sk_buff *msg;
9792 trace_cfg80211_probe_status(dev, addr, cookie, acked);
9794 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9799 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
9805 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9806 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9807 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9808 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
9809 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
9810 goto nla_put_failure;
9812 err = genlmsg_end(msg, hdr);
9818 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9819 nl80211_mlme_mcgrp.id, gfp);
9823 genlmsg_cancel(msg, hdr);
9826 EXPORT_SYMBOL(cfg80211_probe_status);
9828 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
9829 const u8 *frame, size_t len,
9830 int freq, int sig_dbm)
9832 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9833 struct sk_buff *msg;
9835 struct cfg80211_beacon_registration *reg;
9837 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
9839 spin_lock_bh(&rdev->beacon_registrations_lock);
9840 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9841 msg = nlmsg_new(len + 100, GFP_ATOMIC);
9843 spin_unlock_bh(&rdev->beacon_registrations_lock);
9847 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9849 goto nla_put_failure;
9851 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9853 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
9855 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9856 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
9857 goto nla_put_failure;
9859 genlmsg_end(msg, hdr);
9861 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
9863 spin_unlock_bh(&rdev->beacon_registrations_lock);
9867 spin_unlock_bh(&rdev->beacon_registrations_lock);
9869 genlmsg_cancel(msg, hdr);
9872 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
9875 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
9876 struct cfg80211_wowlan_wakeup *wakeup,
9879 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9880 struct sk_buff *msg;
9882 int err, size = 200;
9884 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
9887 size += wakeup->packet_present_len;
9889 msg = nlmsg_new(size, gfp);
9893 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
9897 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9898 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9901 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9902 wdev->netdev->ifindex))
9906 struct nlattr *reasons;
9908 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9910 if (wakeup->disconnect &&
9911 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
9913 if (wakeup->magic_pkt &&
9914 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
9916 if (wakeup->gtk_rekey_failure &&
9917 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
9919 if (wakeup->eap_identity_req &&
9920 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
9922 if (wakeup->four_way_handshake &&
9923 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
9925 if (wakeup->rfkill_release &&
9926 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
9929 if (wakeup->pattern_idx >= 0 &&
9930 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
9931 wakeup->pattern_idx))
9934 if (wakeup->tcp_match)
9935 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
9937 if (wakeup->tcp_connlost)
9939 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
9941 if (wakeup->tcp_nomoretokens)
9943 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
9945 if (wakeup->packet) {
9946 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
9947 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
9949 if (!wakeup->packet_80211) {
9951 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
9953 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
9956 if (wakeup->packet_len &&
9957 nla_put_u32(msg, len_attr, wakeup->packet_len))
9960 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
9965 nla_nest_end(msg, reasons);
9968 err = genlmsg_end(msg, hdr);
9972 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9973 nl80211_mlme_mcgrp.id, gfp);
9979 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
9982 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
9983 enum nl80211_tdls_operation oper,
9984 u16 reason_code, gfp_t gfp)
9986 struct wireless_dev *wdev = dev->ieee80211_ptr;
9987 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9988 struct sk_buff *msg;
9992 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
9995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9999 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10005 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10006 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10007 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10008 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10009 (reason_code > 0 &&
10010 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10011 goto nla_put_failure;
10013 err = genlmsg_end(msg, hdr);
10019 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10020 nl80211_mlme_mcgrp.id, gfp);
10024 genlmsg_cancel(msg, hdr);
10027 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10029 static int nl80211_netlink_notify(struct notifier_block * nb,
10030 unsigned long state,
10033 struct netlink_notify *notify = _notify;
10034 struct cfg80211_registered_device *rdev;
10035 struct wireless_dev *wdev;
10036 struct cfg80211_beacon_registration *reg, *tmp;
10038 if (state != NETLINK_URELEASE)
10039 return NOTIFY_DONE;
10043 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
10044 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
10045 cfg80211_mlme_unregister_socket(wdev, notify->portid);
10047 spin_lock_bh(&rdev->beacon_registrations_lock);
10048 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10050 if (reg->nlportid == notify->portid) {
10051 list_del(®->list);
10056 spin_unlock_bh(&rdev->beacon_registrations_lock);
10061 return NOTIFY_DONE;
10064 static struct notifier_block nl80211_netlink_notifier = {
10065 .notifier_call = nl80211_netlink_notify,
10068 /* initialisation/exit functions */
10070 int nl80211_init(void)
10074 err = genl_register_family_with_ops(&nl80211_fam,
10075 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10079 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10083 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10087 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10091 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10095 #ifdef CONFIG_NL80211_TESTMODE
10096 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10101 err = netlink_register_notifier(&nl80211_netlink_notifier);
10107 genl_unregister_family(&nl80211_fam);
10111 void nl80211_exit(void)
10113 netlink_unregister_notifier(&nl80211_netlink_notifier);
10114 genl_unregister_family(&nl80211_fam);