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_GENL_NAME, /* 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];
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 list_for_each_entry(wdev, &rdev->wdev_list, list) {
84 if (have_ifidx && wdev->netdev &&
85 wdev->netdev->ifindex == ifidx) {
89 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
101 return ERR_PTR(-ENODEV);
104 static struct cfg80211_registered_device *
105 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
107 struct cfg80211_registered_device *rdev = NULL, *tmp;
108 struct net_device *netdev;
112 if (!attrs[NL80211_ATTR_WIPHY] &&
113 !attrs[NL80211_ATTR_IFINDEX] &&
114 !attrs[NL80211_ATTR_WDEV])
115 return ERR_PTR(-EINVAL);
117 if (attrs[NL80211_ATTR_WIPHY])
118 rdev = cfg80211_rdev_by_wiphy_idx(
119 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
121 if (attrs[NL80211_ATTR_WDEV]) {
122 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
123 struct wireless_dev *wdev;
126 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
128 /* make sure wdev exists */
129 list_for_each_entry(wdev, &tmp->wdev_list, list) {
130 if (wdev->identifier != (u32)wdev_id)
139 if (rdev && tmp != rdev)
140 return ERR_PTR(-EINVAL);
145 if (attrs[NL80211_ATTR_IFINDEX]) {
146 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
147 netdev = dev_get_by_index(netns, ifindex);
149 if (netdev->ieee80211_ptr)
151 netdev->ieee80211_ptr->wiphy);
157 /* not wireless device -- return error */
159 return ERR_PTR(-EINVAL);
161 /* mismatch -- return error */
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
170 return ERR_PTR(-ENODEV);
172 if (netns != wiphy_net(&rdev->wiphy))
173 return ERR_PTR(-ENODEV);
179 * This function returns a pointer to the driver
180 * that the genl_info item that is passed refers to.
182 * The result of this can be a PTR_ERR and hence must
183 * be checked with IS_ERR() for errors.
185 static struct cfg80211_registered_device *
186 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
188 return __cfg80211_rdev_from_attrs(netns, info->attrs);
191 /* policy for the attributes */
192 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
193 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
194 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
196 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
198 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
199 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
200 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
201 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
202 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
204 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
205 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
206 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
207 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
208 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
210 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
211 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
212 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
214 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
215 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
217 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
218 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
219 .len = WLAN_MAX_KEY_LEN },
220 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
221 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
222 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
223 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
224 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
226 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
227 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
228 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
229 .len = IEEE80211_MAX_DATA_LEN },
230 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
231 .len = IEEE80211_MAX_DATA_LEN },
232 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
233 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
234 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
235 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
236 .len = NL80211_MAX_SUPP_RATES },
237 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
238 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
239 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
240 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
241 .len = IEEE80211_MAX_MESH_ID_LEN },
242 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
244 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
245 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
247 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
248 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
249 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
250 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
251 .len = NL80211_MAX_SUPP_RATES },
252 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
254 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
255 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
257 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
259 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
260 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
261 .len = IEEE80211_MAX_DATA_LEN },
262 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
263 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
265 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
266 .len = IEEE80211_MAX_SSID_LEN },
267 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
268 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
269 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
270 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
271 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
272 [NL80211_ATTR_STA_FLAGS2] = {
273 .len = sizeof(struct nl80211_sta_flag_update),
275 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
276 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
277 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
278 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
279 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
280 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
281 [NL80211_ATTR_PID] = { .type = NLA_U32 },
282 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
283 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
284 .len = WLAN_PMKID_LEN },
285 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
286 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
287 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
288 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
289 .len = IEEE80211_MAX_DATA_LEN },
290 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
291 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
292 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
293 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
294 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
295 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
296 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
297 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
299 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
300 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
301 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
302 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
303 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
304 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
305 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
306 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
307 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
308 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
309 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
312 .len = IEEE80211_MAX_DATA_LEN },
313 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
314 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
315 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
316 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
317 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
318 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
319 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
320 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
321 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
322 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
323 .len = IEEE80211_MAX_DATA_LEN },
324 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
325 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
326 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
327 .len = NL80211_HT_CAPABILITY_LEN
329 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
330 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
331 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
332 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
333 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
334 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
335 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
336 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
337 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
338 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
339 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
340 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
341 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
342 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
343 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
344 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
346 .len = NL80211_VHT_CAPABILITY_LEN,
348 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
349 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
350 .len = IEEE80211_MAX_DATA_LEN },
351 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
354 /* policy for the key attributes */
355 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
356 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
357 [NL80211_KEY_IDX] = { .type = NLA_U8 },
358 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
359 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
360 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
361 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
362 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
363 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
366 /* policy for the key default flags */
367 static const struct nla_policy
368 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
369 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
370 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
373 /* policy for WoWLAN attributes */
374 static const struct nla_policy
375 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
376 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
377 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
378 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
379 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
380 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
381 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
382 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
383 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
384 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
387 static const struct nla_policy
388 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
389 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
390 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
391 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
392 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
393 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
394 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
395 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
396 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
398 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
399 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
401 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
402 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
403 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
406 /* policy for GTK rekey offload attributes */
407 static const struct nla_policy
408 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
409 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
410 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
411 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
414 static const struct nla_policy
415 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
416 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
417 .len = IEEE80211_MAX_SSID_LEN },
418 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
421 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
422 struct netlink_callback *cb,
423 struct cfg80211_registered_device **rdev,
424 struct wireless_dev **wdev)
431 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
432 nl80211_fam.attrbuf, nl80211_fam.maxattr,
437 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
438 nl80211_fam.attrbuf);
440 err = PTR_ERR(*wdev);
443 *rdev = wiphy_to_dev((*wdev)->wiphy);
444 cb->args[0] = (*rdev)->wiphy_idx;
445 cb->args[1] = (*wdev)->identifier;
447 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
448 struct wireless_dev *tmp;
454 *rdev = wiphy_to_dev(wiphy);
457 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
458 if (tmp->identifier == cb->args[1]) {
476 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
482 static bool is_valid_ie_attr(const struct nlattr *attr)
490 pos = nla_data(attr);
511 /* message building helper */
512 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
515 /* since there is no private header just add the generic one */
516 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
519 static int nl80211_msg_put_channel(struct sk_buff *msg,
520 struct ieee80211_channel *chan,
523 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
525 goto nla_put_failure;
527 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
528 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
529 goto nla_put_failure;
530 if ((chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) &&
531 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN))
532 goto nla_put_failure;
533 if ((chan->flags & IEEE80211_CHAN_NO_IBSS) &&
534 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IBSS))
535 goto nla_put_failure;
536 if (chan->flags & IEEE80211_CHAN_RADAR) {
537 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
538 goto nla_put_failure;
542 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
544 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
546 goto nla_put_failure;
547 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
549 goto nla_put_failure;
554 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
555 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
556 goto nla_put_failure;
557 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
558 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
559 goto nla_put_failure;
560 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
561 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
562 goto nla_put_failure;
563 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
564 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
565 goto nla_put_failure;
568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
569 DBM_TO_MBM(chan->max_power)))
570 goto nla_put_failure;
578 /* netlink command implementations */
585 bool def_uni, def_multi;
588 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
590 struct nlattr *tb[NL80211_KEY_MAX + 1];
591 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
596 k->def = !!tb[NL80211_KEY_DEFAULT];
597 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
606 if (tb[NL80211_KEY_IDX])
607 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
609 if (tb[NL80211_KEY_DATA]) {
610 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
611 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
614 if (tb[NL80211_KEY_SEQ]) {
615 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
616 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
619 if (tb[NL80211_KEY_CIPHER])
620 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
622 if (tb[NL80211_KEY_TYPE]) {
623 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
624 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
628 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
629 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
630 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
631 tb[NL80211_KEY_DEFAULT_TYPES],
632 nl80211_key_default_policy);
636 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
637 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
643 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
645 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
646 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
647 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
650 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
651 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
652 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
655 if (info->attrs[NL80211_ATTR_KEY_IDX])
656 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
658 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
659 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
661 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
662 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
671 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
672 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
673 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
677 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
678 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
679 int err = nla_parse_nested(
680 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
681 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
682 nl80211_key_default_policy);
686 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
687 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
693 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
697 memset(k, 0, sizeof(*k));
701 if (info->attrs[NL80211_ATTR_KEY])
702 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
704 err = nl80211_parse_key_old(info, k);
709 if (k->def && k->defmgmt)
713 if (k->def_uni || !k->def_multi)
719 if (k->idx < 4 || k->idx > 5)
722 if (k->idx < 0 || k->idx > 3)
725 if (k->idx < 0 || k->idx > 5)
733 static struct cfg80211_cached_keys *
734 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
735 struct nlattr *keys, bool *no_ht)
737 struct key_parse parse;
739 struct cfg80211_cached_keys *result;
740 int rem, err, def = 0;
742 result = kzalloc(sizeof(*result), GFP_KERNEL);
744 return ERR_PTR(-ENOMEM);
747 result->defmgmt = -1;
749 nla_for_each_nested(key, keys, rem) {
750 memset(&parse, 0, sizeof(parse));
753 err = nl80211_parse_key_new(key, &parse);
759 if (parse.idx < 0 || parse.idx > 4)
765 result->def = parse.idx;
766 if (!parse.def_uni || !parse.def_multi)
768 } else if (parse.defmgmt)
770 err = cfg80211_validate_key_settings(rdev, &parse.p,
771 parse.idx, false, NULL);
774 result->params[parse.idx].cipher = parse.p.cipher;
775 result->params[parse.idx].key_len = parse.p.key_len;
776 result->params[parse.idx].key = result->data[parse.idx];
777 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
779 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
780 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
792 static int nl80211_key_allowed(struct wireless_dev *wdev)
794 ASSERT_WDEV_LOCK(wdev);
796 switch (wdev->iftype) {
797 case NL80211_IFTYPE_AP:
798 case NL80211_IFTYPE_AP_VLAN:
799 case NL80211_IFTYPE_P2P_GO:
800 case NL80211_IFTYPE_MESH_POINT:
802 case NL80211_IFTYPE_ADHOC:
803 case NL80211_IFTYPE_STATION:
804 case NL80211_IFTYPE_P2P_CLIENT:
805 if (!wdev->current_bss)
815 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
817 struct nlattr *nl_modes = nla_nest_start(msg, attr);
821 goto nla_put_failure;
825 if ((ifmodes & 1) && nla_put_flag(msg, i))
826 goto nla_put_failure;
831 nla_nest_end(msg, nl_modes);
838 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
842 struct nlattr *nl_combis;
845 nl_combis = nla_nest_start(msg,
846 NL80211_ATTR_INTERFACE_COMBINATIONS);
848 goto nla_put_failure;
850 for (i = 0; i < wiphy->n_iface_combinations; i++) {
851 const struct ieee80211_iface_combination *c;
852 struct nlattr *nl_combi, *nl_limits;
854 c = &wiphy->iface_combinations[i];
856 nl_combi = nla_nest_start(msg, i + 1);
858 goto nla_put_failure;
860 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
862 goto nla_put_failure;
864 for (j = 0; j < c->n_limits; j++) {
865 struct nlattr *nl_limit;
867 nl_limit = nla_nest_start(msg, j + 1);
869 goto nla_put_failure;
870 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
872 goto nla_put_failure;
873 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
875 goto nla_put_failure;
876 nla_nest_end(msg, nl_limit);
879 nla_nest_end(msg, nl_limits);
881 if (c->beacon_int_infra_match &&
882 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
883 goto nla_put_failure;
884 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
885 c->num_different_channels) ||
886 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
888 goto nla_put_failure;
890 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
891 c->radar_detect_widths))
892 goto nla_put_failure;
894 nla_nest_end(msg, nl_combi);
897 nla_nest_end(msg, nl_combis);
905 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
908 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
909 struct nlattr *nl_tcp;
914 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
918 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
919 tcp->data_payload_max))
922 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
923 tcp->data_payload_max))
926 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
929 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
930 sizeof(*tcp->tok), tcp->tok))
933 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
934 tcp->data_interval_max))
937 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
938 tcp->wake_payload_max))
941 nla_nest_end(msg, nl_tcp);
945 static int nl80211_send_wowlan(struct sk_buff *msg,
946 struct cfg80211_registered_device *dev,
949 struct nlattr *nl_wowlan;
951 if (!dev->wiphy.wowlan)
954 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
958 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
959 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
960 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
961 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
962 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
963 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
964 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
965 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
966 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
967 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
968 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
969 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
970 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
971 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
972 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
973 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
976 if (dev->wiphy.wowlan->n_patterns) {
977 struct nl80211_wowlan_pattern_support pat = {
978 .max_patterns = dev->wiphy.wowlan->n_patterns,
979 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
980 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
981 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
984 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
989 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
992 nla_nest_end(msg, nl_wowlan);
998 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
999 struct ieee80211_supported_band *sband)
1001 struct nlattr *nl_rates, *nl_rate;
1002 struct ieee80211_rate *rate;
1006 if (sband->ht_cap.ht_supported &&
1007 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1008 sizeof(sband->ht_cap.mcs),
1009 &sband->ht_cap.mcs) ||
1010 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1011 sband->ht_cap.cap) ||
1012 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1013 sband->ht_cap.ampdu_factor) ||
1014 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1015 sband->ht_cap.ampdu_density)))
1019 if (sband->vht_cap.vht_supported &&
1020 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1021 sizeof(sband->vht_cap.vht_mcs),
1022 &sband->vht_cap.vht_mcs) ||
1023 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1024 sband->vht_cap.cap)))
1028 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1032 for (i = 0; i < sband->n_bitrates; i++) {
1033 nl_rate = nla_nest_start(msg, i);
1037 rate = &sband->bitrates[i];
1038 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1041 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1043 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1046 nla_nest_end(msg, nl_rate);
1049 nla_nest_end(msg, nl_rates);
1055 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1056 const struct ieee80211_txrx_stypes *mgmt_stypes)
1059 struct nlattr *nl_ftypes, *nl_ifs;
1060 enum nl80211_iftype ift;
1066 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1070 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1071 nl_ftypes = nla_nest_start(msg, ift);
1075 stypes = mgmt_stypes[ift].tx;
1078 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1079 (i << 4) | IEEE80211_FTYPE_MGMT))
1084 nla_nest_end(msg, nl_ftypes);
1087 nla_nest_end(msg, nl_ifs);
1089 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1093 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1094 nl_ftypes = nla_nest_start(msg, ift);
1098 stypes = mgmt_stypes[ift].rx;
1101 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1102 (i << 4) | IEEE80211_FTYPE_MGMT))
1107 nla_nest_end(msg, nl_ftypes);
1109 nla_nest_end(msg, nl_ifs);
1114 struct nl80211_dump_wiphy_state {
1117 long split_start, band_start, chan_start;
1121 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1122 struct sk_buff *msg, u32 portid, u32 seq,
1123 int flags, struct nl80211_dump_wiphy_state *state)
1126 struct nlattr *nl_bands, *nl_band;
1127 struct nlattr *nl_freqs, *nl_freq;
1128 struct nlattr *nl_cmds;
1129 enum ieee80211_band band;
1130 struct ieee80211_channel *chan;
1132 const struct ieee80211_txrx_stypes *mgmt_stypes =
1133 dev->wiphy.mgmt_stypes;
1136 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1140 if (WARN_ON(!state))
1143 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1144 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1145 wiphy_name(&dev->wiphy)) ||
1146 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1147 cfg80211_rdev_list_generation))
1148 goto nla_put_failure;
1150 switch (state->split_start) {
1152 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1153 dev->wiphy.retry_short) ||
1154 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1155 dev->wiphy.retry_long) ||
1156 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1157 dev->wiphy.frag_threshold) ||
1158 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1159 dev->wiphy.rts_threshold) ||
1160 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1161 dev->wiphy.coverage_class) ||
1162 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1163 dev->wiphy.max_scan_ssids) ||
1164 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1165 dev->wiphy.max_sched_scan_ssids) ||
1166 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1167 dev->wiphy.max_scan_ie_len) ||
1168 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1169 dev->wiphy.max_sched_scan_ie_len) ||
1170 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1171 dev->wiphy.max_match_sets))
1172 goto nla_put_failure;
1174 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1175 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1176 goto nla_put_failure;
1177 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1178 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1179 goto nla_put_failure;
1180 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1181 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1182 goto nla_put_failure;
1183 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1184 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1185 goto nla_put_failure;
1186 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1187 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1188 goto nla_put_failure;
1189 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1190 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1191 goto nla_put_failure;
1192 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1193 nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1194 goto nla_put_failure;
1196 state->split_start++;
1200 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1201 sizeof(u32) * dev->wiphy.n_cipher_suites,
1202 dev->wiphy.cipher_suites))
1203 goto nla_put_failure;
1205 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1206 dev->wiphy.max_num_pmkids))
1207 goto nla_put_failure;
1209 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1210 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1211 goto nla_put_failure;
1213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1214 dev->wiphy.available_antennas_tx) ||
1215 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1216 dev->wiphy.available_antennas_rx))
1217 goto nla_put_failure;
1219 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1220 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1221 dev->wiphy.probe_resp_offload))
1222 goto nla_put_failure;
1224 if ((dev->wiphy.available_antennas_tx ||
1225 dev->wiphy.available_antennas_rx) &&
1226 dev->ops->get_antenna) {
1227 u32 tx_ant = 0, rx_ant = 0;
1229 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1231 if (nla_put_u32(msg,
1232 NL80211_ATTR_WIPHY_ANTENNA_TX,
1235 NL80211_ATTR_WIPHY_ANTENNA_RX,
1237 goto nla_put_failure;
1241 state->split_start++;
1245 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1246 dev->wiphy.interface_modes))
1247 goto nla_put_failure;
1248 state->split_start++;
1252 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1254 goto nla_put_failure;
1256 for (band = state->band_start;
1257 band < IEEE80211_NUM_BANDS; band++) {
1258 struct ieee80211_supported_band *sband;
1260 sband = dev->wiphy.bands[band];
1265 nl_band = nla_nest_start(msg, band);
1267 goto nla_put_failure;
1269 switch (state->chan_start) {
1271 if (nl80211_send_band_rateinfo(msg, sband))
1272 goto nla_put_failure;
1273 state->chan_start++;
1277 /* add frequencies */
1278 nl_freqs = nla_nest_start(
1279 msg, NL80211_BAND_ATTR_FREQS);
1281 goto nla_put_failure;
1283 for (i = state->chan_start - 1;
1284 i < sband->n_channels;
1286 nl_freq = nla_nest_start(msg, i);
1288 goto nla_put_failure;
1290 chan = &sband->channels[i];
1292 if (nl80211_msg_put_channel(
1295 goto nla_put_failure;
1297 nla_nest_end(msg, nl_freq);
1301 if (i < sband->n_channels)
1302 state->chan_start = i + 2;
1304 state->chan_start = 0;
1305 nla_nest_end(msg, nl_freqs);
1308 nla_nest_end(msg, nl_band);
1311 /* start again here */
1312 if (state->chan_start)
1317 nla_nest_end(msg, nl_bands);
1319 if (band < IEEE80211_NUM_BANDS)
1320 state->band_start = band + 1;
1322 state->band_start = 0;
1324 /* if bands & channels are done, continue outside */
1325 if (state->band_start == 0 && state->chan_start == 0)
1326 state->split_start++;
1330 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1332 goto nla_put_failure;
1335 #define CMD(op, n) \
1337 if (dev->ops->op) { \
1339 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1340 goto nla_put_failure; \
1344 CMD(add_virtual_intf, NEW_INTERFACE);
1345 CMD(change_virtual_intf, SET_INTERFACE);
1346 CMD(add_key, NEW_KEY);
1347 CMD(start_ap, START_AP);
1348 CMD(add_station, NEW_STATION);
1349 CMD(add_mpath, NEW_MPATH);
1350 CMD(update_mesh_config, SET_MESH_CONFIG);
1351 CMD(change_bss, SET_BSS);
1352 CMD(auth, AUTHENTICATE);
1353 CMD(assoc, ASSOCIATE);
1354 CMD(deauth, DEAUTHENTICATE);
1355 CMD(disassoc, DISASSOCIATE);
1356 CMD(join_ibss, JOIN_IBSS);
1357 CMD(join_mesh, JOIN_MESH);
1358 CMD(set_pmksa, SET_PMKSA);
1359 CMD(del_pmksa, DEL_PMKSA);
1360 CMD(flush_pmksa, FLUSH_PMKSA);
1361 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1362 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1363 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1364 CMD(mgmt_tx, FRAME);
1365 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1366 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1368 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1369 goto nla_put_failure;
1371 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1372 dev->ops->join_mesh) {
1374 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1375 goto nla_put_failure;
1377 CMD(set_wds_peer, SET_WDS_PEER);
1378 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1379 CMD(tdls_mgmt, TDLS_MGMT);
1380 CMD(tdls_oper, TDLS_OPER);
1382 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1383 CMD(sched_scan_start, START_SCHED_SCAN);
1384 CMD(probe_client, PROBE_CLIENT);
1385 CMD(set_noack_map, SET_NOACK_MAP);
1386 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1388 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1389 goto nla_put_failure;
1391 CMD(start_p2p_device, START_P2P_DEVICE);
1392 CMD(set_mcast_rate, SET_MCAST_RATE);
1394 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1395 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1398 #ifdef CONFIG_NL80211_TESTMODE
1399 CMD(testmode_cmd, TESTMODE);
1404 if (dev->ops->connect || dev->ops->auth) {
1406 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1407 goto nla_put_failure;
1410 if (dev->ops->disconnect || dev->ops->deauth) {
1412 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1413 goto nla_put_failure;
1416 nla_nest_end(msg, nl_cmds);
1417 state->split_start++;
1421 if (dev->ops->remain_on_channel &&
1422 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1424 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1425 dev->wiphy.max_remain_on_channel_duration))
1426 goto nla_put_failure;
1428 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1429 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1430 goto nla_put_failure;
1432 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1433 goto nla_put_failure;
1434 state->split_start++;
1439 if (nl80211_send_wowlan(msg, dev, state->split))
1440 goto nla_put_failure;
1441 state->split_start++;
1445 state->split_start++;
1448 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1449 dev->wiphy.software_iftypes))
1450 goto nla_put_failure;
1452 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1454 goto nla_put_failure;
1456 state->split_start++;
1460 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1461 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1462 dev->wiphy.ap_sme_capa))
1463 goto nla_put_failure;
1465 features = dev->wiphy.features;
1467 * We can only add the per-channel limit information if the
1468 * dump is split, otherwise it makes it too big. Therefore
1469 * only advertise it in that case.
1472 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1473 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1474 goto nla_put_failure;
1476 if (dev->wiphy.ht_capa_mod_mask &&
1477 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1478 sizeof(*dev->wiphy.ht_capa_mod_mask),
1479 dev->wiphy.ht_capa_mod_mask))
1480 goto nla_put_failure;
1482 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1483 dev->wiphy.max_acl_mac_addrs &&
1484 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1485 dev->wiphy.max_acl_mac_addrs))
1486 goto nla_put_failure;
1489 * Any information below this point is only available to
1490 * applications that can deal with it being split. This
1491 * helps ensure that newly added capabilities don't break
1492 * older tools by overrunning their buffers.
1494 * We still increment split_start so that in the split
1495 * case we'll continue with more data in the next round,
1496 * but break unconditionally so unsplit data stops here.
1498 state->split_start++;
1501 if (dev->wiphy.extended_capabilities &&
1502 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1503 dev->wiphy.extended_capabilities_len,
1504 dev->wiphy.extended_capabilities) ||
1505 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1506 dev->wiphy.extended_capabilities_len,
1507 dev->wiphy.extended_capabilities_mask)))
1508 goto nla_put_failure;
1510 if (dev->wiphy.vht_capa_mod_mask &&
1511 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1512 sizeof(*dev->wiphy.vht_capa_mod_mask),
1513 dev->wiphy.vht_capa_mod_mask))
1514 goto nla_put_failure;
1517 state->split_start = 0;
1520 return genlmsg_end(msg, hdr);
1523 genlmsg_cancel(msg, hdr);
1527 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1528 struct netlink_callback *cb,
1529 struct nl80211_dump_wiphy_state *state)
1531 struct nlattr **tb = nl80211_fam.attrbuf;
1532 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1533 tb, nl80211_fam.maxattr, nl80211_policy);
1534 /* ignore parse errors for backward compatibility */
1538 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1539 if (tb[NL80211_ATTR_WIPHY])
1540 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1541 if (tb[NL80211_ATTR_WDEV])
1542 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1543 if (tb[NL80211_ATTR_IFINDEX]) {
1544 struct net_device *netdev;
1545 struct cfg80211_registered_device *rdev;
1546 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1548 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1551 if (netdev->ieee80211_ptr) {
1552 rdev = wiphy_to_dev(
1553 netdev->ieee80211_ptr->wiphy);
1554 state->filter_wiphy = rdev->wiphy_idx;
1562 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1565 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1566 struct cfg80211_registered_device *dev;
1570 state = kzalloc(sizeof(*state), GFP_KERNEL);
1573 state->filter_wiphy = -1;
1574 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1580 cb->args[0] = (long)state;
1583 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1584 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1586 if (++idx <= state->start)
1588 if (state->filter_wiphy != -1 &&
1589 state->filter_wiphy != dev->wiphy_idx)
1591 /* attempt to fit multiple wiphy data chunks into the skb */
1593 ret = nl80211_send_wiphy(dev, skb,
1594 NETLINK_CB(cb->skb).portid,
1596 NLM_F_MULTI, state);
1599 * If sending the wiphy data didn't fit (ENOBUFS
1600 * or EMSGSIZE returned), this SKB is still
1601 * empty (so it's not too big because another
1602 * wiphy dataset is already in the skb) and
1603 * we've not tried to adjust the dump allocation
1604 * yet ... then adjust the alloc size to be
1605 * bigger, and return 1 but with the empty skb.
1606 * This results in an empty message being RX'ed
1607 * in userspace, but that is ignored.
1609 * We can then retry with the larger buffer.
1611 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1613 cb->min_dump_alloc < 4096) {
1614 cb->min_dump_alloc = 4096;
1621 } while (state->split_start > 0);
1631 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1633 kfree((void *)cb->args[0]);
1637 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1639 struct sk_buff *msg;
1640 struct cfg80211_registered_device *dev = info->user_ptr[0];
1641 struct nl80211_dump_wiphy_state state = {};
1643 msg = nlmsg_new(4096, GFP_KERNEL);
1647 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1653 return genlmsg_reply(msg, info);
1656 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1657 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1658 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1659 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1660 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1661 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1664 static int parse_txq_params(struct nlattr *tb[],
1665 struct ieee80211_txq_params *txq_params)
1667 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1668 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1669 !tb[NL80211_TXQ_ATTR_AIFS])
1672 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1673 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1674 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1675 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1676 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1678 if (txq_params->ac >= NL80211_NUM_ACS)
1684 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1687 * You can only set the channel explicitly for WDS interfaces,
1688 * all others have their channel managed via their respective
1689 * "establish a connection" command (connect, join, ...)
1691 * For AP/GO and mesh mode, the channel can be set with the
1692 * channel userspace API, but is only stored and passed to the
1693 * low-level driver when the AP starts or the mesh is joined.
1694 * This is for backward compatibility, userspace can also give
1695 * the channel in the start-ap or join-mesh commands instead.
1697 * Monitors are special as they are normally slaved to
1698 * whatever else is going on, so they have their own special
1699 * operation to set the monitor channel if possible.
1702 wdev->iftype == NL80211_IFTYPE_AP ||
1703 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1704 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1705 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1708 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1709 struct genl_info *info,
1710 struct cfg80211_chan_def *chandef)
1714 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1717 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1719 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1720 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1721 chandef->center_freq1 = control_freq;
1722 chandef->center_freq2 = 0;
1724 /* Primary channel not allowed */
1725 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1728 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1729 enum nl80211_channel_type chantype;
1731 chantype = nla_get_u32(
1732 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1735 case NL80211_CHAN_NO_HT:
1736 case NL80211_CHAN_HT20:
1737 case NL80211_CHAN_HT40PLUS:
1738 case NL80211_CHAN_HT40MINUS:
1739 cfg80211_chandef_create(chandef, chandef->chan,
1745 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1747 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1748 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1749 chandef->center_freq1 =
1751 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1752 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1753 chandef->center_freq2 =
1755 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1758 if (!cfg80211_chandef_valid(chandef))
1761 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1762 IEEE80211_CHAN_DISABLED))
1765 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1766 chandef->width == NL80211_CHAN_WIDTH_10) &&
1767 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1773 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1774 struct wireless_dev *wdev,
1775 struct genl_info *info)
1777 struct cfg80211_chan_def chandef;
1779 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1782 iftype = wdev->iftype;
1784 if (!nl80211_can_set_dev_channel(wdev))
1787 result = nl80211_parse_chandef(rdev, info, &chandef);
1792 case NL80211_IFTYPE_AP:
1793 case NL80211_IFTYPE_P2P_GO:
1794 if (wdev->beacon_interval) {
1798 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1802 wdev->preset_chandef = chandef;
1805 case NL80211_IFTYPE_MESH_POINT:
1806 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1808 case NL80211_IFTYPE_MONITOR:
1809 result = cfg80211_set_monitor_channel(rdev, &chandef);
1818 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1821 struct net_device *netdev = info->user_ptr[1];
1823 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1826 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1828 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1829 struct net_device *dev = info->user_ptr[1];
1830 struct wireless_dev *wdev = dev->ieee80211_ptr;
1833 if (!info->attrs[NL80211_ATTR_MAC])
1836 if (netif_running(dev))
1839 if (!rdev->ops->set_wds_peer)
1842 if (wdev->iftype != NL80211_IFTYPE_WDS)
1845 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1846 return rdev_set_wds_peer(rdev, dev, bssid);
1850 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1852 struct cfg80211_registered_device *rdev;
1853 struct net_device *netdev = NULL;
1854 struct wireless_dev *wdev;
1855 int result = 0, rem_txq_params = 0;
1856 struct nlattr *nl_txq_params;
1858 u8 retry_short = 0, retry_long = 0;
1859 u32 frag_threshold = 0, rts_threshold = 0;
1860 u8 coverage_class = 0;
1865 * Try to find the wiphy and netdev. Normally this
1866 * function shouldn't need the netdev, but this is
1867 * done for backward compatibility -- previously
1868 * setting the channel was done per wiphy, but now
1869 * it is per netdev. Previous userland like hostapd
1870 * also passed a netdev to set_wiphy, so that it is
1871 * possible to let that go to the right netdev!
1874 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1875 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1877 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1878 if (netdev && netdev->ieee80211_ptr)
1879 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1885 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1888 return PTR_ERR(rdev);
1893 wdev = netdev->ieee80211_ptr;
1896 * end workaround code, by now the rdev is available
1897 * and locked, and wdev may or may not be NULL.
1900 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1901 result = cfg80211_dev_rename(
1902 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1907 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1908 struct ieee80211_txq_params txq_params;
1909 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1911 if (!rdev->ops->set_txq_params) {
1912 result = -EOPNOTSUPP;
1921 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1922 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1927 if (!netif_running(netdev)) {
1932 nla_for_each_nested(nl_txq_params,
1933 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1935 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1936 nla_data(nl_txq_params),
1937 nla_len(nl_txq_params),
1939 result = parse_txq_params(tb, &txq_params);
1943 result = rdev_set_txq_params(rdev, netdev,
1950 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1951 result = __nl80211_set_channel(rdev,
1952 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1958 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1959 struct wireless_dev *txp_wdev = wdev;
1960 enum nl80211_tx_power_setting type;
1963 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1966 if (!rdev->ops->set_tx_power) {
1967 result = -EOPNOTSUPP;
1971 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1972 type = nla_get_u32(info->attrs[idx]);
1974 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1975 (type != NL80211_TX_POWER_AUTOMATIC)) {
1980 if (type != NL80211_TX_POWER_AUTOMATIC) {
1981 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1982 mbm = nla_get_u32(info->attrs[idx]);
1985 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1990 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1991 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1993 if ((!rdev->wiphy.available_antennas_tx &&
1994 !rdev->wiphy.available_antennas_rx) ||
1995 !rdev->ops->set_antenna) {
1996 result = -EOPNOTSUPP;
2000 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2001 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2003 /* reject antenna configurations which don't match the
2004 * available antenna masks, except for the "all" mask */
2005 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2006 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
2011 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2012 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2014 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2021 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2022 retry_short = nla_get_u8(
2023 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2024 if (retry_short == 0) {
2028 changed |= WIPHY_PARAM_RETRY_SHORT;
2031 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2032 retry_long = nla_get_u8(
2033 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2034 if (retry_long == 0) {
2038 changed |= WIPHY_PARAM_RETRY_LONG;
2041 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2042 frag_threshold = nla_get_u32(
2043 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2044 if (frag_threshold < 256) {
2048 if (frag_threshold != (u32) -1) {
2050 * Fragments (apart from the last one) are required to
2051 * have even length. Make the fragmentation code
2052 * simpler by stripping LSB should someone try to use
2053 * odd threshold value.
2055 frag_threshold &= ~0x1;
2057 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2060 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2061 rts_threshold = nla_get_u32(
2062 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2063 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2066 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2067 coverage_class = nla_get_u8(
2068 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2069 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2073 u8 old_retry_short, old_retry_long;
2074 u32 old_frag_threshold, old_rts_threshold;
2075 u8 old_coverage_class;
2077 if (!rdev->ops->set_wiphy_params) {
2078 result = -EOPNOTSUPP;
2082 old_retry_short = rdev->wiphy.retry_short;
2083 old_retry_long = rdev->wiphy.retry_long;
2084 old_frag_threshold = rdev->wiphy.frag_threshold;
2085 old_rts_threshold = rdev->wiphy.rts_threshold;
2086 old_coverage_class = rdev->wiphy.coverage_class;
2088 if (changed & WIPHY_PARAM_RETRY_SHORT)
2089 rdev->wiphy.retry_short = retry_short;
2090 if (changed & WIPHY_PARAM_RETRY_LONG)
2091 rdev->wiphy.retry_long = retry_long;
2092 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2093 rdev->wiphy.frag_threshold = frag_threshold;
2094 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2095 rdev->wiphy.rts_threshold = rts_threshold;
2096 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2097 rdev->wiphy.coverage_class = coverage_class;
2099 result = rdev_set_wiphy_params(rdev, changed);
2101 rdev->wiphy.retry_short = old_retry_short;
2102 rdev->wiphy.retry_long = old_retry_long;
2103 rdev->wiphy.frag_threshold = old_frag_threshold;
2104 rdev->wiphy.rts_threshold = old_rts_threshold;
2105 rdev->wiphy.coverage_class = old_coverage_class;
2115 static inline u64 wdev_id(struct wireless_dev *wdev)
2117 return (u64)wdev->identifier |
2118 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2121 static int nl80211_send_chandef(struct sk_buff *msg,
2122 struct cfg80211_chan_def *chandef)
2124 WARN_ON(!cfg80211_chandef_valid(chandef));
2126 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2127 chandef->chan->center_freq))
2129 switch (chandef->width) {
2130 case NL80211_CHAN_WIDTH_20_NOHT:
2131 case NL80211_CHAN_WIDTH_20:
2132 case NL80211_CHAN_WIDTH_40:
2133 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2134 cfg80211_get_chandef_type(chandef)))
2140 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2142 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2144 if (chandef->center_freq2 &&
2145 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2150 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2151 struct cfg80211_registered_device *rdev,
2152 struct wireless_dev *wdev)
2154 struct net_device *dev = wdev->netdev;
2157 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2162 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2163 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2164 goto nla_put_failure;
2166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2167 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2168 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2169 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2170 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2171 rdev->devlist_generation ^
2172 (cfg80211_rdev_list_generation << 2)))
2173 goto nla_put_failure;
2175 if (rdev->ops->get_channel) {
2177 struct cfg80211_chan_def chandef;
2179 ret = rdev_get_channel(rdev, wdev, &chandef);
2181 if (nl80211_send_chandef(msg, &chandef))
2182 goto nla_put_failure;
2186 if (wdev->ssid_len) {
2187 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2188 goto nla_put_failure;
2191 return genlmsg_end(msg, hdr);
2194 genlmsg_cancel(msg, hdr);
2198 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2202 int wp_start = cb->args[0];
2203 int if_start = cb->args[1];
2204 struct cfg80211_registered_device *rdev;
2205 struct wireless_dev *wdev;
2208 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2209 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2211 if (wp_idx < wp_start) {
2217 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2218 if (if_idx < if_start) {
2222 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2223 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2235 cb->args[0] = wp_idx;
2236 cb->args[1] = if_idx;
2241 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2243 struct sk_buff *msg;
2244 struct cfg80211_registered_device *dev = info->user_ptr[0];
2245 struct wireless_dev *wdev = info->user_ptr[1];
2247 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2251 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2257 return genlmsg_reply(msg, info);
2260 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2261 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2262 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2263 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2264 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2265 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2266 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2269 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2271 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2279 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2280 nla, mntr_flags_policy))
2283 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2285 *mntrflags |= (1<<flag);
2290 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2291 struct net_device *netdev, u8 use_4addr,
2292 enum nl80211_iftype iftype)
2295 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2301 case NL80211_IFTYPE_AP_VLAN:
2302 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2305 case NL80211_IFTYPE_STATION:
2306 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2316 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2319 struct vif_params params;
2321 enum nl80211_iftype otype, ntype;
2322 struct net_device *dev = info->user_ptr[1];
2323 u32 _flags, *flags = NULL;
2324 bool change = false;
2326 memset(¶ms, 0, sizeof(params));
2328 otype = ntype = dev->ieee80211_ptr->iftype;
2330 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2331 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2334 if (ntype > NL80211_IFTYPE_MAX)
2338 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2339 struct wireless_dev *wdev = dev->ieee80211_ptr;
2341 if (ntype != NL80211_IFTYPE_MESH_POINT)
2343 if (netif_running(dev))
2347 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2348 IEEE80211_MAX_MESH_ID_LEN);
2349 wdev->mesh_id_up_len =
2350 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2351 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2352 wdev->mesh_id_up_len);
2356 if (info->attrs[NL80211_ATTR_4ADDR]) {
2357 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2359 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2363 params.use_4addr = -1;
2366 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2367 if (ntype != NL80211_IFTYPE_MONITOR)
2369 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2378 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2379 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2383 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2387 if (!err && params.use_4addr != -1)
2388 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2393 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2396 struct vif_params params;
2397 struct wireless_dev *wdev;
2398 struct sk_buff *msg;
2400 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2403 memset(¶ms, 0, sizeof(params));
2405 if (!info->attrs[NL80211_ATTR_IFNAME])
2408 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2409 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2410 if (type > NL80211_IFTYPE_MAX)
2414 if (!rdev->ops->add_virtual_intf ||
2415 !(rdev->wiphy.interface_modes & (1 << type)))
2418 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2419 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2421 if (!is_valid_ether_addr(params.macaddr))
2422 return -EADDRNOTAVAIL;
2425 if (info->attrs[NL80211_ATTR_4ADDR]) {
2426 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2427 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2436 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2437 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2440 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2441 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2444 wdev = rdev_add_virtual_intf(rdev,
2445 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2446 type, err ? NULL : &flags, ¶ms);
2449 return PTR_ERR(wdev);
2453 case NL80211_IFTYPE_MESH_POINT:
2454 if (!info->attrs[NL80211_ATTR_MESH_ID])
2457 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2458 IEEE80211_MAX_MESH_ID_LEN);
2459 wdev->mesh_id_up_len =
2460 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2461 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2462 wdev->mesh_id_up_len);
2465 case NL80211_IFTYPE_P2P_DEVICE:
2467 * P2P Device doesn't have a netdev, so doesn't go
2468 * through the netdev notifier and must be added here
2470 mutex_init(&wdev->mtx);
2471 INIT_LIST_HEAD(&wdev->event_list);
2472 spin_lock_init(&wdev->event_lock);
2473 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2474 spin_lock_init(&wdev->mgmt_registrations_lock);
2476 wdev->identifier = ++rdev->wdev_id;
2477 list_add_rcu(&wdev->list, &rdev->wdev_list);
2478 rdev->devlist_generation++;
2484 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2490 return genlmsg_reply(msg, info);
2493 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2496 struct wireless_dev *wdev = info->user_ptr[1];
2498 if (!rdev->ops->del_virtual_intf)
2502 * If we remove a wireless device without a netdev then clear
2503 * user_ptr[1] so that nl80211_post_doit won't dereference it
2504 * to check if it needs to do dev_put(). Otherwise it crashes
2505 * since the wdev has been freed, unlike with a netdev where
2506 * we need the dev_put() for the netdev to really be freed.
2509 info->user_ptr[1] = NULL;
2511 return rdev_del_virtual_intf(rdev, wdev);
2514 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2517 struct net_device *dev = info->user_ptr[1];
2520 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2523 if (!rdev->ops->set_noack_map)
2526 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2528 return rdev_set_noack_map(rdev, dev, noack_map);
2531 struct get_key_cookie {
2532 struct sk_buff *msg;
2537 static void get_key_callback(void *c, struct key_params *params)
2540 struct get_key_cookie *cookie = c;
2543 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2544 params->key_len, params->key)) ||
2546 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2547 params->seq_len, params->seq)) ||
2549 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2551 goto nla_put_failure;
2553 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2555 goto nla_put_failure;
2558 nla_put(cookie->msg, NL80211_KEY_DATA,
2559 params->key_len, params->key)) ||
2561 nla_put(cookie->msg, NL80211_KEY_SEQ,
2562 params->seq_len, params->seq)) ||
2564 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2566 goto nla_put_failure;
2568 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2569 goto nla_put_failure;
2571 nla_nest_end(cookie->msg, key);
2578 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2582 struct net_device *dev = info->user_ptr[1];
2584 const u8 *mac_addr = NULL;
2586 struct get_key_cookie cookie = {
2590 struct sk_buff *msg;
2592 if (info->attrs[NL80211_ATTR_KEY_IDX])
2593 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2598 if (info->attrs[NL80211_ATTR_MAC])
2599 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2601 pairwise = !!mac_addr;
2602 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2603 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2604 if (kt >= NUM_NL80211_KEYTYPES)
2606 if (kt != NL80211_KEYTYPE_GROUP &&
2607 kt != NL80211_KEYTYPE_PAIRWISE)
2609 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2612 if (!rdev->ops->get_key)
2615 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2619 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2620 NL80211_CMD_NEW_KEY);
2622 return PTR_ERR(hdr);
2625 cookie.idx = key_idx;
2627 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2628 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2629 goto nla_put_failure;
2631 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2632 goto nla_put_failure;
2634 if (pairwise && mac_addr &&
2635 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2638 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2645 goto nla_put_failure;
2647 genlmsg_end(msg, hdr);
2648 return genlmsg_reply(msg, info);
2657 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2659 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2660 struct key_parse key;
2662 struct net_device *dev = info->user_ptr[1];
2664 err = nl80211_parse_key(info, &key);
2671 /* only support setting default key */
2672 if (!key.def && !key.defmgmt)
2675 wdev_lock(dev->ieee80211_ptr);
2678 if (!rdev->ops->set_default_key) {
2683 err = nl80211_key_allowed(dev->ieee80211_ptr);
2687 err = rdev_set_default_key(rdev, dev, key.idx,
2688 key.def_uni, key.def_multi);
2693 #ifdef CONFIG_CFG80211_WEXT
2694 dev->ieee80211_ptr->wext.default_key = key.idx;
2697 if (key.def_uni || !key.def_multi) {
2702 if (!rdev->ops->set_default_mgmt_key) {
2707 err = nl80211_key_allowed(dev->ieee80211_ptr);
2711 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2715 #ifdef CONFIG_CFG80211_WEXT
2716 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2721 wdev_unlock(dev->ieee80211_ptr);
2726 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2728 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2730 struct net_device *dev = info->user_ptr[1];
2731 struct key_parse key;
2732 const u8 *mac_addr = NULL;
2734 err = nl80211_parse_key(info, &key);
2741 if (info->attrs[NL80211_ATTR_MAC])
2742 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2744 if (key.type == -1) {
2746 key.type = NL80211_KEYTYPE_PAIRWISE;
2748 key.type = NL80211_KEYTYPE_GROUP;
2752 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2753 key.type != NL80211_KEYTYPE_GROUP)
2756 if (!rdev->ops->add_key)
2759 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2760 key.type == NL80211_KEYTYPE_PAIRWISE,
2764 wdev_lock(dev->ieee80211_ptr);
2765 err = nl80211_key_allowed(dev->ieee80211_ptr);
2767 err = rdev_add_key(rdev, dev, key.idx,
2768 key.type == NL80211_KEYTYPE_PAIRWISE,
2770 wdev_unlock(dev->ieee80211_ptr);
2775 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2779 struct net_device *dev = info->user_ptr[1];
2780 u8 *mac_addr = NULL;
2781 struct key_parse key;
2783 err = nl80211_parse_key(info, &key);
2787 if (info->attrs[NL80211_ATTR_MAC])
2788 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2790 if (key.type == -1) {
2792 key.type = NL80211_KEYTYPE_PAIRWISE;
2794 key.type = NL80211_KEYTYPE_GROUP;
2798 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2799 key.type != NL80211_KEYTYPE_GROUP)
2802 if (!rdev->ops->del_key)
2805 wdev_lock(dev->ieee80211_ptr);
2806 err = nl80211_key_allowed(dev->ieee80211_ptr);
2808 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2809 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2813 err = rdev_del_key(rdev, dev, key.idx,
2814 key.type == NL80211_KEYTYPE_PAIRWISE,
2817 #ifdef CONFIG_CFG80211_WEXT
2819 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2820 dev->ieee80211_ptr->wext.default_key = -1;
2821 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2822 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2825 wdev_unlock(dev->ieee80211_ptr);
2830 /* This function returns an error or the number of nested attributes */
2831 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2833 struct nlattr *attr;
2834 int n_entries = 0, tmp;
2836 nla_for_each_nested(attr, nl_attr, tmp) {
2837 if (nla_len(attr) != ETH_ALEN)
2847 * This function parses ACL information and allocates memory for ACL data.
2848 * On successful return, the calling function is responsible to free the
2849 * ACL buffer returned by this function.
2851 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2852 struct genl_info *info)
2854 enum nl80211_acl_policy acl_policy;
2855 struct nlattr *attr;
2856 struct cfg80211_acl_data *acl;
2857 int i = 0, n_entries, tmp;
2859 if (!wiphy->max_acl_mac_addrs)
2860 return ERR_PTR(-EOPNOTSUPP);
2862 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2863 return ERR_PTR(-EINVAL);
2865 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2866 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2867 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2868 return ERR_PTR(-EINVAL);
2870 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2871 return ERR_PTR(-EINVAL);
2873 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2875 return ERR_PTR(n_entries);
2877 if (n_entries > wiphy->max_acl_mac_addrs)
2878 return ERR_PTR(-ENOTSUPP);
2880 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2883 return ERR_PTR(-ENOMEM);
2885 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2886 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2890 acl->n_acl_entries = n_entries;
2891 acl->acl_policy = acl_policy;
2896 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2899 struct net_device *dev = info->user_ptr[1];
2900 struct cfg80211_acl_data *acl;
2903 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2904 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2907 if (!dev->ieee80211_ptr->beacon_interval)
2910 acl = parse_acl_data(&rdev->wiphy, info);
2912 return PTR_ERR(acl);
2914 err = rdev_set_mac_acl(rdev, dev, acl);
2921 static int nl80211_parse_beacon(struct nlattr *attrs[],
2922 struct cfg80211_beacon_data *bcn)
2924 bool haveinfo = false;
2926 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2927 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2928 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2929 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2932 memset(bcn, 0, sizeof(*bcn));
2934 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
2935 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
2936 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
2942 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
2943 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
2944 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
2951 if (attrs[NL80211_ATTR_IE]) {
2952 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
2953 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
2956 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2957 bcn->proberesp_ies =
2958 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
2959 bcn->proberesp_ies_len =
2960 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
2963 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2964 bcn->assocresp_ies =
2965 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2966 bcn->assocresp_ies_len =
2967 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2970 if (attrs[NL80211_ATTR_PROBE_RESP]) {
2971 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
2972 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
2978 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2979 struct cfg80211_ap_settings *params)
2981 struct wireless_dev *wdev;
2984 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2985 if (wdev->iftype != NL80211_IFTYPE_AP &&
2986 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2989 if (!wdev->preset_chandef.chan)
2992 params->chandef = wdev->preset_chandef;
3000 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3001 enum nl80211_auth_type auth_type,
3002 enum nl80211_commands cmd)
3004 if (auth_type > NL80211_AUTHTYPE_MAX)
3008 case NL80211_CMD_AUTHENTICATE:
3009 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3010 auth_type == NL80211_AUTHTYPE_SAE)
3013 case NL80211_CMD_CONNECT:
3014 case NL80211_CMD_START_AP:
3015 /* SAE not supported yet */
3016 if (auth_type == NL80211_AUTHTYPE_SAE)
3024 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3027 struct net_device *dev = info->user_ptr[1];
3028 struct wireless_dev *wdev = dev->ieee80211_ptr;
3029 struct cfg80211_ap_settings params;
3031 u8 radar_detect_width = 0;
3033 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3034 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3037 if (!rdev->ops->start_ap)
3040 if (wdev->beacon_interval)
3043 memset(¶ms, 0, sizeof(params));
3045 /* these are required for START_AP */
3046 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3047 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3048 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3051 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3055 params.beacon_interval =
3056 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3057 params.dtim_period =
3058 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3060 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3065 * In theory, some of these attributes should be required here
3066 * but since they were not used when the command was originally
3067 * added, keep them optional for old user space programs to let
3068 * them continue to work with drivers that do not need the
3069 * additional information -- drivers must check!
3071 if (info->attrs[NL80211_ATTR_SSID]) {
3072 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3074 nla_len(info->attrs[NL80211_ATTR_SSID]);
3075 if (params.ssid_len == 0 ||
3076 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3080 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3081 params.hidden_ssid = nla_get_u32(
3082 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3083 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3084 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3085 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3089 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3091 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3092 params.auth_type = nla_get_u32(
3093 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3094 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3095 NL80211_CMD_START_AP))
3098 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3100 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3101 NL80211_MAX_NR_CIPHER_SUITES);
3105 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3106 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3108 params.inactivity_timeout = nla_get_u16(
3109 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3112 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3113 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3115 params.p2p_ctwindow =
3116 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3117 if (params.p2p_ctwindow > 127)
3119 if (params.p2p_ctwindow != 0 &&
3120 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3124 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3127 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3129 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3132 params.p2p_opp_ps = tmp;
3133 if (params.p2p_opp_ps != 0 &&
3134 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3138 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3139 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3142 } else if (wdev->preset_chandef.chan) {
3143 params.chandef = wdev->preset_chandef;
3144 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3147 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3150 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3154 radar_detect_width = BIT(params.chandef.width);
3155 params.radar_required = true;
3158 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3159 params.chandef.chan,
3161 radar_detect_width);
3165 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3166 params.acl = parse_acl_data(&rdev->wiphy, info);
3167 if (IS_ERR(params.acl))
3168 return PTR_ERR(params.acl);
3171 err = rdev_start_ap(rdev, dev, ¶ms);
3173 wdev->preset_chandef = params.chandef;
3174 wdev->beacon_interval = params.beacon_interval;
3175 wdev->channel = params.chandef.chan;
3176 wdev->ssid_len = params.ssid_len;
3177 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3185 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3188 struct net_device *dev = info->user_ptr[1];
3189 struct wireless_dev *wdev = dev->ieee80211_ptr;
3190 struct cfg80211_beacon_data params;
3193 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3194 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3197 if (!rdev->ops->change_beacon)
3200 if (!wdev->beacon_interval)
3203 err = nl80211_parse_beacon(info->attrs, ¶ms);
3207 return rdev_change_beacon(rdev, dev, ¶ms);
3210 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3213 struct net_device *dev = info->user_ptr[1];
3215 return cfg80211_stop_ap(rdev, dev);
3218 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3219 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3220 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3221 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3222 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3223 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3224 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3227 static int parse_station_flags(struct genl_info *info,
3228 enum nl80211_iftype iftype,
3229 struct station_parameters *params)
3231 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3236 * Try parsing the new attribute first so userspace
3237 * can specify both for older kernels.
3239 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3241 struct nl80211_sta_flag_update *sta_flags;
3243 sta_flags = nla_data(nla);
3244 params->sta_flags_mask = sta_flags->mask;
3245 params->sta_flags_set = sta_flags->set;
3246 params->sta_flags_set &= params->sta_flags_mask;
3247 if ((params->sta_flags_mask |
3248 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3253 /* if present, parse the old attribute */
3255 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3259 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3260 nla, sta_flags_policy))
3264 * Only allow certain flags for interface types so that
3265 * other attributes are silently ignored. Remember that
3266 * this is backward compatibility code with old userspace
3267 * and shouldn't be hit in other cases anyway.
3270 case NL80211_IFTYPE_AP:
3271 case NL80211_IFTYPE_AP_VLAN:
3272 case NL80211_IFTYPE_P2P_GO:
3273 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3274 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3275 BIT(NL80211_STA_FLAG_WME) |
3276 BIT(NL80211_STA_FLAG_MFP);
3278 case NL80211_IFTYPE_P2P_CLIENT:
3279 case NL80211_IFTYPE_STATION:
3280 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3281 BIT(NL80211_STA_FLAG_TDLS_PEER);
3283 case NL80211_IFTYPE_MESH_POINT:
3284 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3285 BIT(NL80211_STA_FLAG_MFP) |
3286 BIT(NL80211_STA_FLAG_AUTHORIZED);
3291 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3293 params->sta_flags_set |= (1<<flag);
3295 /* no longer support new API additions in old API */
3296 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3304 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3307 struct nlattr *rate;
3311 rate = nla_nest_start(msg, attr);
3315 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3316 bitrate = cfg80211_calculate_bitrate(info);
3317 /* report 16-bit bitrate only if we can */
3318 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3320 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3322 if (bitrate_compat > 0 &&
3323 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3326 if (info->flags & RATE_INFO_FLAGS_MCS) {
3327 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3329 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3330 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3332 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3333 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3335 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3336 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3338 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3340 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3341 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3343 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3344 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3346 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3347 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3349 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3350 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3352 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3353 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3357 nla_nest_end(msg, rate);
3361 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3370 attr = nla_nest_start(msg, id);
3374 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3375 if (!(mask & BIT(i)))
3378 if (nla_put_u8(msg, i, signal[i]))
3382 nla_nest_end(msg, attr);
3387 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3389 struct cfg80211_registered_device *rdev,
3390 struct net_device *dev,
3391 const u8 *mac_addr, struct station_info *sinfo)
3394 struct nlattr *sinfoattr, *bss_param;
3396 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3400 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3401 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3402 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3403 goto nla_put_failure;
3405 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3407 goto nla_put_failure;
3408 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3409 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3410 sinfo->connected_time))
3411 goto nla_put_failure;
3412 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3413 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3414 sinfo->inactive_time))
3415 goto nla_put_failure;
3416 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3417 STATION_INFO_RX_BYTES64)) &&
3418 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3419 (u32)sinfo->rx_bytes))
3420 goto nla_put_failure;
3421 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3422 STATION_INFO_TX_BYTES64)) &&
3423 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3424 (u32)sinfo->tx_bytes))
3425 goto nla_put_failure;
3426 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3427 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3429 goto nla_put_failure;
3430 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3431 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3433 goto nla_put_failure;
3434 if ((sinfo->filled & STATION_INFO_LLID) &&
3435 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3436 goto nla_put_failure;
3437 if ((sinfo->filled & STATION_INFO_PLID) &&
3438 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3439 goto nla_put_failure;
3440 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3441 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3442 sinfo->plink_state))
3443 goto nla_put_failure;
3444 switch (rdev->wiphy.signal_type) {
3445 case CFG80211_SIGNAL_TYPE_MBM:
3446 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3447 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3449 goto nla_put_failure;
3450 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3451 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3453 goto nla_put_failure;
3458 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3459 if (!nl80211_put_signal(msg, sinfo->chains,
3460 sinfo->chain_signal,
3461 NL80211_STA_INFO_CHAIN_SIGNAL))
3462 goto nla_put_failure;
3464 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3465 if (!nl80211_put_signal(msg, sinfo->chains,
3466 sinfo->chain_signal_avg,
3467 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3468 goto nla_put_failure;
3470 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3471 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3472 NL80211_STA_INFO_TX_BITRATE))
3473 goto nla_put_failure;
3475 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3476 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3477 NL80211_STA_INFO_RX_BITRATE))
3478 goto nla_put_failure;
3480 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3481 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3483 goto nla_put_failure;
3484 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3485 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3487 goto nla_put_failure;
3488 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3489 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3491 goto nla_put_failure;
3492 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3493 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3495 goto nla_put_failure;
3496 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3497 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3498 sinfo->beacon_loss_count))
3499 goto nla_put_failure;
3500 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3501 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3503 goto nla_put_failure;
3504 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3505 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3507 goto nla_put_failure;
3508 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3509 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3511 goto nla_put_failure;
3512 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3513 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3515 goto nla_put_failure;
3517 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3518 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3519 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3520 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3521 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3522 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3523 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3524 sinfo->bss_param.dtim_period) ||
3525 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3526 sinfo->bss_param.beacon_interval))
3527 goto nla_put_failure;
3529 nla_nest_end(msg, bss_param);
3531 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3532 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3533 sizeof(struct nl80211_sta_flag_update),
3535 goto nla_put_failure;
3536 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3537 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3539 goto nla_put_failure;
3540 nla_nest_end(msg, sinfoattr);
3542 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3543 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3544 sinfo->assoc_req_ies))
3545 goto nla_put_failure;
3547 return genlmsg_end(msg, hdr);
3550 genlmsg_cancel(msg, hdr);
3554 static int nl80211_dump_station(struct sk_buff *skb,
3555 struct netlink_callback *cb)
3557 struct station_info sinfo;
3558 struct cfg80211_registered_device *dev;
3559 struct wireless_dev *wdev;
3560 u8 mac_addr[ETH_ALEN];
3561 int sta_idx = cb->args[2];
3564 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3568 if (!wdev->netdev) {
3573 if (!dev->ops->dump_station) {
3579 memset(&sinfo, 0, sizeof(sinfo));
3580 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3587 if (nl80211_send_station(skb,
3588 NETLINK_CB(cb->skb).portid,
3589 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3590 dev, wdev->netdev, mac_addr,
3599 cb->args[2] = sta_idx;
3602 nl80211_finish_wdev_dump(dev);
3607 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3610 struct net_device *dev = info->user_ptr[1];
3611 struct station_info sinfo;
3612 struct sk_buff *msg;
3613 u8 *mac_addr = NULL;
3616 memset(&sinfo, 0, sizeof(sinfo));
3618 if (!info->attrs[NL80211_ATTR_MAC])
3621 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3623 if (!rdev->ops->get_station)
3626 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3630 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3634 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3635 rdev, dev, mac_addr, &sinfo) < 0) {
3640 return genlmsg_reply(msg, info);
3643 int cfg80211_check_station_change(struct wiphy *wiphy,
3644 struct station_parameters *params,
3645 enum cfg80211_station_type statype)
3647 if (params->listen_interval != -1)
3652 /* When you run into this, adjust the code below for the new flag */
3653 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3656 case CFG80211_STA_MESH_PEER_KERNEL:
3657 case CFG80211_STA_MESH_PEER_USER:
3659 * No ignoring the TDLS flag here -- the userspace mesh
3660 * code doesn't have the bug of including TDLS in the
3663 if (params->sta_flags_mask &
3664 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3665 BIT(NL80211_STA_FLAG_MFP) |
3666 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3669 case CFG80211_STA_TDLS_PEER_SETUP:
3670 case CFG80211_STA_TDLS_PEER_ACTIVE:
3671 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3673 /* ignore since it can't change */
3674 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3677 /* disallow mesh-specific things */
3678 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3680 if (params->local_pm)
3682 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3686 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3687 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3688 /* TDLS can't be set, ... */
3689 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3692 * ... but don't bother the driver with it. This works around
3693 * a hostapd/wpa_supplicant issue -- it always includes the
3694 * TLDS_PEER flag in the mask even for AP mode.
3696 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3699 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3700 /* reject other things that can't change */
3701 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3703 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3705 if (params->supported_rates)
3707 if (params->ext_capab || params->ht_capa || params->vht_capa)
3711 if (statype != CFG80211_STA_AP_CLIENT) {
3717 case CFG80211_STA_AP_MLME_CLIENT:
3718 /* Use this only for authorizing/unauthorizing a station */
3719 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3722 case CFG80211_STA_AP_CLIENT:
3723 /* accept only the listed bits */
3724 if (params->sta_flags_mask &
3725 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3726 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3727 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3728 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3729 BIT(NL80211_STA_FLAG_WME) |
3730 BIT(NL80211_STA_FLAG_MFP)))
3733 /* but authenticated/associated only if driver handles it */
3734 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3735 params->sta_flags_mask &
3736 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3737 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3740 case CFG80211_STA_IBSS:
3741 case CFG80211_STA_AP_STA:
3742 /* reject any changes other than AUTHORIZED */
3743 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3746 case CFG80211_STA_TDLS_PEER_SETUP:
3747 /* reject any changes other than AUTHORIZED or WME */
3748 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3749 BIT(NL80211_STA_FLAG_WME)))
3751 /* force (at least) rates when authorizing */
3752 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3753 !params->supported_rates)
3756 case CFG80211_STA_TDLS_PEER_ACTIVE:
3757 /* reject any changes */
3759 case CFG80211_STA_MESH_PEER_KERNEL:
3760 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3763 case CFG80211_STA_MESH_PEER_USER:
3764 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3771 EXPORT_SYMBOL(cfg80211_check_station_change);
3774 * Get vlan interface making sure it is running and on the right wiphy.
3776 static struct net_device *get_vlan(struct genl_info *info,
3777 struct cfg80211_registered_device *rdev)
3779 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3780 struct net_device *v;
3786 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3788 return ERR_PTR(-ENODEV);
3790 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3795 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3796 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3797 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3802 if (!netif_running(v)) {
3810 return ERR_PTR(ret);
3813 static struct nla_policy
3814 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3815 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3816 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3819 static int nl80211_parse_sta_wme(struct genl_info *info,
3820 struct station_parameters *params)
3822 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3826 /* parse WME attributes if present */
3827 if (!info->attrs[NL80211_ATTR_STA_WME])
3830 nla = info->attrs[NL80211_ATTR_STA_WME];
3831 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3832 nl80211_sta_wme_policy);
3836 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3837 params->uapsd_queues = nla_get_u8(
3838 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3839 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3842 if (tb[NL80211_STA_WME_MAX_SP])
3843 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3845 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3848 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3853 static int nl80211_set_station_tdls(struct genl_info *info,
3854 struct station_parameters *params)
3856 /* Dummy STA entry gets updated once the peer capabilities are known */
3857 if (info->attrs[NL80211_ATTR_PEER_AID])
3858 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3859 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3861 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3862 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3864 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3866 return nl80211_parse_sta_wme(info, params);
3869 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3872 struct net_device *dev = info->user_ptr[1];
3873 struct station_parameters params;
3877 memset(¶ms, 0, sizeof(params));
3879 params.listen_interval = -1;
3881 if (!rdev->ops->change_station)
3884 if (info->attrs[NL80211_ATTR_STA_AID])
3887 if (!info->attrs[NL80211_ATTR_MAC])
3890 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3892 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3893 params.supported_rates =
3894 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3895 params.supported_rates_len =
3896 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3899 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3901 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3902 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3905 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3907 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3908 params.ext_capab_len =
3909 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3912 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3915 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3918 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
3919 params.plink_action =
3920 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3921 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3925 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
3926 params.plink_state =
3927 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3928 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3930 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3933 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3934 enum nl80211_mesh_power_mode pm = nla_get_u32(
3935 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3937 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3938 pm > NL80211_MESH_POWER_MAX)
3941 params.local_pm = pm;
3944 /* Include parameters for TDLS peer (will check later) */
3945 err = nl80211_set_station_tdls(info, ¶ms);
3949 params.vlan = get_vlan(info, rdev);
3950 if (IS_ERR(params.vlan))
3951 return PTR_ERR(params.vlan);
3953 switch (dev->ieee80211_ptr->iftype) {
3954 case NL80211_IFTYPE_AP:
3955 case NL80211_IFTYPE_AP_VLAN:
3956 case NL80211_IFTYPE_P2P_GO:
3957 case NL80211_IFTYPE_P2P_CLIENT:
3958 case NL80211_IFTYPE_STATION:
3959 case NL80211_IFTYPE_ADHOC:
3960 case NL80211_IFTYPE_MESH_POINT:
3967 /* driver will call cfg80211_check_station_change() */
3968 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3972 dev_put(params.vlan);
3977 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3979 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3981 struct net_device *dev = info->user_ptr[1];
3982 struct station_parameters params;
3983 u8 *mac_addr = NULL;
3985 memset(¶ms, 0, sizeof(params));
3987 if (!rdev->ops->add_station)
3990 if (!info->attrs[NL80211_ATTR_MAC])
3993 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3996 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3999 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4000 !info->attrs[NL80211_ATTR_PEER_AID])
4003 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4004 params.supported_rates =
4005 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4006 params.supported_rates_len =
4007 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4008 params.listen_interval =
4009 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4011 if (info->attrs[NL80211_ATTR_PEER_AID])
4012 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4014 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4015 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4018 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4020 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4021 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4024 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4026 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4027 params.ext_capab_len =
4028 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4031 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4033 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4035 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4037 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4039 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4040 params.plink_action =
4041 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4042 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4046 err = nl80211_parse_sta_wme(info, ¶ms);
4050 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4053 /* When you run into this, adjust the code below for the new flag */
4054 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4056 switch (dev->ieee80211_ptr->iftype) {
4057 case NL80211_IFTYPE_AP:
4058 case NL80211_IFTYPE_AP_VLAN:
4059 case NL80211_IFTYPE_P2P_GO:
4060 /* ignore WME attributes if iface/sta is not capable */
4061 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4062 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4063 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4065 /* TDLS peers cannot be added */
4066 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4067 info->attrs[NL80211_ATTR_PEER_AID])
4069 /* but don't bother the driver with it */
4070 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4072 /* allow authenticated/associated only if driver handles it */
4073 if (!(rdev->wiphy.features &
4074 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4075 params.sta_flags_mask &
4076 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4077 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4080 /* must be last in here for error handling */
4081 params.vlan = get_vlan(info, rdev);
4082 if (IS_ERR(params.vlan))
4083 return PTR_ERR(params.vlan);
4085 case NL80211_IFTYPE_MESH_POINT:
4086 /* ignore uAPSD data */
4087 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4089 /* associated is disallowed */
4090 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4092 /* TDLS peers cannot be added */
4093 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4094 info->attrs[NL80211_ATTR_PEER_AID])
4097 case NL80211_IFTYPE_STATION:
4098 case NL80211_IFTYPE_P2P_CLIENT:
4099 /* ignore uAPSD data */
4100 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4102 /* these are disallowed */
4103 if (params.sta_flags_mask &
4104 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4105 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4107 /* Only TDLS peers can be added */
4108 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4110 /* Can only add if TDLS ... */
4111 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4113 /* ... with external setup is supported */
4114 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4117 * Older wpa_supplicant versions always mark the TDLS peer
4118 * as authorized, but it shouldn't yet be.
4120 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4126 /* be aware of params.vlan when changing code here */
4128 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4131 dev_put(params.vlan);
4135 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4138 struct net_device *dev = info->user_ptr[1];
4139 u8 *mac_addr = NULL;
4141 if (info->attrs[NL80211_ATTR_MAC])
4142 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4144 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4145 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4146 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4147 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4150 if (!rdev->ops->del_station)
4153 return rdev_del_station(rdev, dev, mac_addr);
4156 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4157 int flags, struct net_device *dev,
4158 u8 *dst, u8 *next_hop,
4159 struct mpath_info *pinfo)
4162 struct nlattr *pinfoattr;
4164 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4168 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4169 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4170 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4171 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4172 goto nla_put_failure;
4174 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4176 goto nla_put_failure;
4177 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4178 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4180 goto nla_put_failure;
4181 if (((pinfo->filled & MPATH_INFO_SN) &&
4182 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4183 ((pinfo->filled & MPATH_INFO_METRIC) &&
4184 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4186 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4187 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4189 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4190 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4192 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4193 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4194 pinfo->discovery_timeout)) ||
4195 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4196 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4197 pinfo->discovery_retries)))
4198 goto nla_put_failure;
4200 nla_nest_end(msg, pinfoattr);
4202 return genlmsg_end(msg, hdr);
4205 genlmsg_cancel(msg, hdr);
4209 static int nl80211_dump_mpath(struct sk_buff *skb,
4210 struct netlink_callback *cb)
4212 struct mpath_info pinfo;
4213 struct cfg80211_registered_device *dev;
4214 struct wireless_dev *wdev;
4216 u8 next_hop[ETH_ALEN];
4217 int path_idx = cb->args[2];
4220 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4224 if (!dev->ops->dump_mpath) {
4229 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4235 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4242 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4243 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4244 wdev->netdev, dst, next_hop,
4253 cb->args[2] = path_idx;
4256 nl80211_finish_wdev_dump(dev);
4260 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4264 struct net_device *dev = info->user_ptr[1];
4265 struct mpath_info pinfo;
4266 struct sk_buff *msg;
4268 u8 next_hop[ETH_ALEN];
4270 memset(&pinfo, 0, sizeof(pinfo));
4272 if (!info->attrs[NL80211_ATTR_MAC])
4275 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4277 if (!rdev->ops->get_mpath)
4280 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4283 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4287 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4291 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4292 dev, dst, next_hop, &pinfo) < 0) {
4297 return genlmsg_reply(msg, info);
4300 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4303 struct net_device *dev = info->user_ptr[1];
4305 u8 *next_hop = NULL;
4307 if (!info->attrs[NL80211_ATTR_MAC])
4310 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4313 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4314 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4316 if (!rdev->ops->change_mpath)
4319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4322 return rdev_change_mpath(rdev, dev, dst, next_hop);
4325 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4328 struct net_device *dev = info->user_ptr[1];
4330 u8 *next_hop = NULL;
4332 if (!info->attrs[NL80211_ATTR_MAC])
4335 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4338 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4339 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4341 if (!rdev->ops->add_mpath)
4344 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4347 return rdev_add_mpath(rdev, dev, dst, next_hop);
4350 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4352 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4353 struct net_device *dev = info->user_ptr[1];
4356 if (info->attrs[NL80211_ATTR_MAC])
4357 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4359 if (!rdev->ops->del_mpath)
4362 return rdev_del_mpath(rdev, dev, dst);
4365 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4367 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4368 struct net_device *dev = info->user_ptr[1];
4369 struct bss_parameters params;
4371 memset(¶ms, 0, sizeof(params));
4372 /* default to not changing parameters */
4373 params.use_cts_prot = -1;
4374 params.use_short_preamble = -1;
4375 params.use_short_slot_time = -1;
4376 params.ap_isolate = -1;
4377 params.ht_opmode = -1;
4378 params.p2p_ctwindow = -1;
4379 params.p2p_opp_ps = -1;
4381 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4382 params.use_cts_prot =
4383 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4384 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4385 params.use_short_preamble =
4386 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4387 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4388 params.use_short_slot_time =
4389 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4390 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4391 params.basic_rates =
4392 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4393 params.basic_rates_len =
4394 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4396 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4397 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4398 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4400 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4402 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4403 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4405 params.p2p_ctwindow =
4406 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4407 if (params.p2p_ctwindow < 0)
4409 if (params.p2p_ctwindow != 0 &&
4410 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4414 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4417 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4419 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4422 params.p2p_opp_ps = tmp;
4423 if (params.p2p_opp_ps &&
4424 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4428 if (!rdev->ops->change_bss)
4431 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4432 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4435 return rdev_change_bss(rdev, dev, ¶ms);
4438 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4439 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4440 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4441 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4442 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4443 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4444 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4447 static int parse_reg_rule(struct nlattr *tb[],
4448 struct ieee80211_reg_rule *reg_rule)
4450 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4451 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4453 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4455 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4457 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4459 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4461 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4464 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4466 freq_range->start_freq_khz =
4467 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4468 freq_range->end_freq_khz =
4469 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4470 freq_range->max_bandwidth_khz =
4471 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4473 power_rule->max_eirp =
4474 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4476 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4477 power_rule->max_antenna_gain =
4478 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4483 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4487 enum nl80211_user_reg_hint_type user_reg_hint_type;
4490 * You should only get this when cfg80211 hasn't yet initialized
4491 * completely when built-in to the kernel right between the time
4492 * window between nl80211_init() and regulatory_init(), if that is
4495 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4496 return -EINPROGRESS;
4498 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4501 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4503 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4504 user_reg_hint_type =
4505 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4507 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4509 switch (user_reg_hint_type) {
4510 case NL80211_USER_REG_HINT_USER:
4511 case NL80211_USER_REG_HINT_CELL_BASE:
4517 r = regulatory_hint_user(data, user_reg_hint_type);
4522 static int nl80211_get_mesh_config(struct sk_buff *skb,
4523 struct genl_info *info)
4525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4526 struct net_device *dev = info->user_ptr[1];
4527 struct wireless_dev *wdev = dev->ieee80211_ptr;
4528 struct mesh_config cur_params;
4531 struct nlattr *pinfoattr;
4532 struct sk_buff *msg;
4534 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4537 if (!rdev->ops->get_mesh_config)
4541 /* If not connected, get default parameters */
4542 if (!wdev->mesh_id_len)
4543 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4545 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4551 /* Draw up a netlink message to send back */
4552 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4555 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4556 NL80211_CMD_GET_MESH_CONFIG);
4559 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4561 goto nla_put_failure;
4562 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4563 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4564 cur_params.dot11MeshRetryTimeout) ||
4565 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4566 cur_params.dot11MeshConfirmTimeout) ||
4567 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4568 cur_params.dot11MeshHoldingTimeout) ||
4569 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4570 cur_params.dot11MeshMaxPeerLinks) ||
4571 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4572 cur_params.dot11MeshMaxRetries) ||
4573 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4574 cur_params.dot11MeshTTL) ||
4575 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4576 cur_params.element_ttl) ||
4577 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4578 cur_params.auto_open_plinks) ||
4579 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4580 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4581 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4582 cur_params.dot11MeshHWMPmaxPREQretries) ||
4583 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4584 cur_params.path_refresh_time) ||
4585 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4586 cur_params.min_discovery_timeout) ||
4587 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4588 cur_params.dot11MeshHWMPactivePathTimeout) ||
4589 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4590 cur_params.dot11MeshHWMPpreqMinInterval) ||
4591 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4592 cur_params.dot11MeshHWMPperrMinInterval) ||
4593 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4594 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4595 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4596 cur_params.dot11MeshHWMPRootMode) ||
4597 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4598 cur_params.dot11MeshHWMPRannInterval) ||
4599 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4600 cur_params.dot11MeshGateAnnouncementProtocol) ||
4601 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4602 cur_params.dot11MeshForwarding) ||
4603 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4604 cur_params.rssi_threshold) ||
4605 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4606 cur_params.ht_opmode) ||
4607 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4608 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4609 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4610 cur_params.dot11MeshHWMProotInterval) ||
4611 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4612 cur_params.dot11MeshHWMPconfirmationInterval) ||
4613 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4614 cur_params.power_mode) ||
4615 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4616 cur_params.dot11MeshAwakeWindowDuration) ||
4617 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4618 cur_params.plink_timeout))
4619 goto nla_put_failure;
4620 nla_nest_end(msg, pinfoattr);
4621 genlmsg_end(msg, hdr);
4622 return genlmsg_reply(msg, info);
4625 genlmsg_cancel(msg, hdr);
4631 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4632 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4633 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4634 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4635 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4636 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4637 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4638 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4639 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4640 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4641 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4642 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4643 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4644 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4645 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4646 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4647 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4648 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4649 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4650 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4651 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4652 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4653 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4654 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4655 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4656 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4657 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4658 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4659 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4662 static const struct nla_policy
4663 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4664 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4665 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4666 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4667 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4668 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4669 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4670 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4671 .len = IEEE80211_MAX_DATA_LEN },
4672 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4675 static int nl80211_parse_mesh_config(struct genl_info *info,
4676 struct mesh_config *cfg,
4679 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4682 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4685 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4687 cfg->param = fn(tb[attr]); \
4688 mask |= (1 << (attr - 1)); \
4693 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4695 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4696 info->attrs[NL80211_ATTR_MESH_CONFIG],
4697 nl80211_meshconf_params_policy))
4700 /* This makes sure that there aren't more than 32 mesh config
4701 * parameters (otherwise our bitfield scheme would not work.) */
4702 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4704 /* Fill in the params struct */
4705 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4706 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4708 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4709 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4712 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4714 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4715 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4718 mask, NL80211_MESHCONF_MAX_RETRIES,
4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4721 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4722 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4723 mask, NL80211_MESHCONF_ELEMENT_TTL,
4725 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4726 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4730 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4732 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4733 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4735 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4736 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4738 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4739 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4743 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4745 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4747 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4749 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4751 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4753 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4754 dot11MeshHWMPnetDiameterTraversalTime,
4756 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4758 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4759 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4761 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4762 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4764 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4765 dot11MeshGateAnnouncementProtocol, 0, 1,
4766 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4768 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4769 mask, NL80211_MESHCONF_FORWARDING,
4771 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4772 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4774 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4775 mask, NL80211_MESHCONF_HT_OPMODE,
4777 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4779 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4781 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4782 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4784 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4785 dot11MeshHWMPconfirmationInterval,
4787 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4789 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4790 NL80211_MESH_POWER_ACTIVE,
4791 NL80211_MESH_POWER_MAX,
4792 mask, NL80211_MESHCONF_POWER_MODE,
4794 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4796 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4797 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4798 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4805 #undef FILL_IN_MESH_PARAM_IF_SET
4808 static int nl80211_parse_mesh_setup(struct genl_info *info,
4809 struct mesh_setup *setup)
4811 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4812 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4814 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4816 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4817 info->attrs[NL80211_ATTR_MESH_SETUP],
4818 nl80211_mesh_setup_params_policy))
4821 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4822 setup->sync_method =
4823 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4824 IEEE80211_SYNC_METHOD_VENDOR :
4825 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4827 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4828 setup->path_sel_proto =
4829 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4830 IEEE80211_PATH_PROTOCOL_VENDOR :
4831 IEEE80211_PATH_PROTOCOL_HWMP;
4833 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4834 setup->path_metric =
4835 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4836 IEEE80211_PATH_METRIC_VENDOR :
4837 IEEE80211_PATH_METRIC_AIRTIME;
4840 if (tb[NL80211_MESH_SETUP_IE]) {
4841 struct nlattr *ieattr =
4842 tb[NL80211_MESH_SETUP_IE];
4843 if (!is_valid_ie_attr(ieattr))
4845 setup->ie = nla_data(ieattr);
4846 setup->ie_len = nla_len(ieattr);
4848 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4849 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4851 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
4852 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4853 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4854 if (setup->is_secure)
4855 setup->user_mpm = true;
4857 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4858 if (!setup->user_mpm)
4861 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4867 static int nl80211_update_mesh_config(struct sk_buff *skb,
4868 struct genl_info *info)
4870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4871 struct net_device *dev = info->user_ptr[1];
4872 struct wireless_dev *wdev = dev->ieee80211_ptr;
4873 struct mesh_config cfg;
4877 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4880 if (!rdev->ops->update_mesh_config)
4883 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4888 if (!wdev->mesh_id_len)
4892 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4899 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4901 const struct ieee80211_regdomain *regdom;
4902 struct sk_buff *msg;
4904 struct nlattr *nl_reg_rules;
4907 if (!cfg80211_regdomain)
4910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4914 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4915 NL80211_CMD_GET_REG);
4919 if (reg_last_request_cell_base() &&
4920 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4921 NL80211_USER_REG_HINT_CELL_BASE))
4922 goto nla_put_failure;
4925 regdom = rcu_dereference(cfg80211_regdomain);
4927 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4928 (regdom->dfs_region &&
4929 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4930 goto nla_put_failure_rcu;
4932 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4934 goto nla_put_failure_rcu;
4936 for (i = 0; i < regdom->n_reg_rules; i++) {
4937 struct nlattr *nl_reg_rule;
4938 const struct ieee80211_reg_rule *reg_rule;
4939 const struct ieee80211_freq_range *freq_range;
4940 const struct ieee80211_power_rule *power_rule;
4942 reg_rule = ®dom->reg_rules[i];
4943 freq_range = ®_rule->freq_range;
4944 power_rule = ®_rule->power_rule;
4946 nl_reg_rule = nla_nest_start(msg, i);
4948 goto nla_put_failure_rcu;
4950 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4952 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4953 freq_range->start_freq_khz) ||
4954 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4955 freq_range->end_freq_khz) ||
4956 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4957 freq_range->max_bandwidth_khz) ||
4958 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4959 power_rule->max_antenna_gain) ||
4960 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4961 power_rule->max_eirp))
4962 goto nla_put_failure_rcu;
4964 nla_nest_end(msg, nl_reg_rule);
4968 nla_nest_end(msg, nl_reg_rules);
4970 genlmsg_end(msg, hdr);
4971 return genlmsg_reply(msg, info);
4973 nla_put_failure_rcu:
4976 genlmsg_cancel(msg, hdr);
4982 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4984 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4985 struct nlattr *nl_reg_rule;
4986 char *alpha2 = NULL;
4987 int rem_reg_rules = 0, r = 0;
4988 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4990 struct ieee80211_regdomain *rd = NULL;
4992 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4995 if (!info->attrs[NL80211_ATTR_REG_RULES])
4998 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5000 if (info->attrs[NL80211_ATTR_DFS_REGION])
5001 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5003 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5006 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5010 size_of_regd = sizeof(struct ieee80211_regdomain) +
5011 num_rules * sizeof(struct ieee80211_reg_rule);
5013 rd = kzalloc(size_of_regd, GFP_KERNEL);
5017 rd->n_reg_rules = num_rules;
5018 rd->alpha2[0] = alpha2[0];
5019 rd->alpha2[1] = alpha2[1];
5022 * Disable DFS master mode if the DFS region was
5023 * not supported or known on this kernel.
5025 if (reg_supported_dfs_region(dfs_region))
5026 rd->dfs_region = dfs_region;
5028 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5030 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5031 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5033 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5039 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5046 /* set_regdom took ownership */
5054 static int validate_scan_freqs(struct nlattr *freqs)
5056 struct nlattr *attr1, *attr2;
5057 int n_channels = 0, tmp1, tmp2;
5059 nla_for_each_nested(attr1, freqs, tmp1) {
5062 * Some hardware has a limited channel list for
5063 * scanning, and it is pretty much nonsensical
5064 * to scan for a channel twice, so disallow that
5065 * and don't require drivers to check that the
5066 * channel list they get isn't longer than what
5067 * they can scan, as long as they can scan all
5068 * the channels they registered at once.
5070 nla_for_each_nested(attr2, freqs, tmp2)
5071 if (attr1 != attr2 &&
5072 nla_get_u32(attr1) == nla_get_u32(attr2))
5079 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5081 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5082 struct wireless_dev *wdev = info->user_ptr[1];
5083 struct cfg80211_scan_request *request;
5084 struct nlattr *attr;
5085 struct wiphy *wiphy;
5086 int err, tmp, n_ssids = 0, n_channels, i;
5089 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5092 wiphy = &rdev->wiphy;
5094 if (!rdev->ops->scan)
5097 if (rdev->scan_req) {
5102 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5103 n_channels = validate_scan_freqs(
5104 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5110 enum ieee80211_band band;
5113 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5114 if (wiphy->bands[band])
5115 n_channels += wiphy->bands[band]->n_channels;
5118 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5119 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5122 if (n_ssids > wiphy->max_scan_ssids) {
5127 if (info->attrs[NL80211_ATTR_IE])
5128 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5132 if (ie_len > wiphy->max_scan_ie_len) {
5137 request = kzalloc(sizeof(*request)
5138 + sizeof(*request->ssids) * n_ssids
5139 + sizeof(*request->channels) * n_channels
5140 + ie_len, GFP_KERNEL);
5147 request->ssids = (void *)&request->channels[n_channels];
5148 request->n_ssids = n_ssids;
5151 request->ie = (void *)(request->ssids + n_ssids);
5153 request->ie = (void *)(request->channels + n_channels);
5157 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5158 /* user specified, bail out if channel not found */
5159 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5160 struct ieee80211_channel *chan;
5162 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5169 /* ignore disabled channels */
5170 if (chan->flags & IEEE80211_CHAN_DISABLED)
5173 request->channels[i] = chan;
5177 enum ieee80211_band band;
5180 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5182 if (!wiphy->bands[band])
5184 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5185 struct ieee80211_channel *chan;
5187 chan = &wiphy->bands[band]->channels[j];
5189 if (chan->flags & IEEE80211_CHAN_DISABLED)
5192 request->channels[i] = chan;
5203 request->n_channels = i;
5206 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5207 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5208 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5212 request->ssids[i].ssid_len = nla_len(attr);
5213 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5218 if (info->attrs[NL80211_ATTR_IE]) {
5219 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5220 memcpy((void *)request->ie,
5221 nla_data(info->attrs[NL80211_ATTR_IE]),
5225 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5226 if (wiphy->bands[i])
5228 (1 << wiphy->bands[i]->n_bitrates) - 1;
5230 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5231 nla_for_each_nested(attr,
5232 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5234 enum ieee80211_band band = nla_type(attr);
5236 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5240 err = ieee80211_get_ratemask(wiphy->bands[band],
5243 &request->rates[band]);
5249 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5250 request->flags = nla_get_u32(
5251 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5252 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5253 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5254 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5255 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5262 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5264 request->wdev = wdev;
5265 request->wiphy = &rdev->wiphy;
5266 request->scan_start = jiffies;
5268 rdev->scan_req = request;
5269 err = rdev_scan(rdev, request);
5272 nl80211_send_scan_start(rdev, wdev);
5274 dev_hold(wdev->netdev);
5277 rdev->scan_req = NULL;
5285 static int nl80211_start_sched_scan(struct sk_buff *skb,
5286 struct genl_info *info)
5288 struct cfg80211_sched_scan_request *request;
5289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5290 struct net_device *dev = info->user_ptr[1];
5291 struct nlattr *attr;
5292 struct wiphy *wiphy;
5293 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5295 enum ieee80211_band band;
5297 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5299 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5300 !rdev->ops->sched_scan_start)
5303 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5306 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5309 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5313 wiphy = &rdev->wiphy;
5315 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5316 n_channels = validate_scan_freqs(
5317 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5323 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5324 if (wiphy->bands[band])
5325 n_channels += wiphy->bands[band]->n_channels;
5328 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5329 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5333 if (n_ssids > wiphy->max_sched_scan_ssids)
5336 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5337 nla_for_each_nested(attr,
5338 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5342 if (n_match_sets > wiphy->max_match_sets)
5345 if (info->attrs[NL80211_ATTR_IE])
5346 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5350 if (ie_len > wiphy->max_sched_scan_ie_len)
5353 if (rdev->sched_scan_req) {
5358 request = kzalloc(sizeof(*request)
5359 + sizeof(*request->ssids) * n_ssids
5360 + sizeof(*request->match_sets) * n_match_sets
5361 + sizeof(*request->channels) * n_channels
5362 + ie_len, GFP_KERNEL);
5369 request->ssids = (void *)&request->channels[n_channels];
5370 request->n_ssids = n_ssids;
5373 request->ie = (void *)(request->ssids + n_ssids);
5375 request->ie = (void *)(request->channels + n_channels);
5380 request->match_sets = (void *)(request->ie + ie_len);
5381 else if (request->ssids)
5382 request->match_sets =
5383 (void *)(request->ssids + n_ssids);
5385 request->match_sets =
5386 (void *)(request->channels + n_channels);
5388 request->n_match_sets = n_match_sets;
5391 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5392 /* user specified, bail out if channel not found */
5393 nla_for_each_nested(attr,
5394 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5396 struct ieee80211_channel *chan;
5398 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5405 /* ignore disabled channels */
5406 if (chan->flags & IEEE80211_CHAN_DISABLED)
5409 request->channels[i] = chan;
5414 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5416 if (!wiphy->bands[band])
5418 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5419 struct ieee80211_channel *chan;
5421 chan = &wiphy->bands[band]->channels[j];
5423 if (chan->flags & IEEE80211_CHAN_DISABLED)
5426 request->channels[i] = chan;
5437 request->n_channels = i;
5440 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5441 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5443 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5447 request->ssids[i].ssid_len = nla_len(attr);
5448 memcpy(request->ssids[i].ssid, nla_data(attr),
5455 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5456 nla_for_each_nested(attr,
5457 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5459 struct nlattr *ssid, *rssi;
5461 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5462 nla_data(attr), nla_len(attr),
5463 nl80211_match_policy);
5464 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5466 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5470 memcpy(request->match_sets[i].ssid.ssid,
5471 nla_data(ssid), nla_len(ssid));
5472 request->match_sets[i].ssid.ssid_len =
5475 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5477 request->rssi_thold = nla_get_u32(rssi);
5479 request->rssi_thold =
5480 NL80211_SCAN_RSSI_THOLD_OFF;
5485 if (info->attrs[NL80211_ATTR_IE]) {
5486 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5487 memcpy((void *)request->ie,
5488 nla_data(info->attrs[NL80211_ATTR_IE]),
5492 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5493 request->flags = nla_get_u32(
5494 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5495 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5496 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5497 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5498 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5505 request->wiphy = &rdev->wiphy;
5506 request->interval = interval;
5507 request->scan_start = jiffies;
5509 err = rdev_sched_scan_start(rdev, dev, request);
5511 rdev->sched_scan_req = request;
5512 nl80211_send_sched_scan(rdev, dev,
5513 NL80211_CMD_START_SCHED_SCAN);
5523 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5524 struct genl_info *info)
5526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5528 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5529 !rdev->ops->sched_scan_stop)
5532 return __cfg80211_stop_sched_scan(rdev, false);
5535 static int nl80211_start_radar_detection(struct sk_buff *skb,
5536 struct genl_info *info)
5538 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5539 struct net_device *dev = info->user_ptr[1];
5540 struct wireless_dev *wdev = dev->ieee80211_ptr;
5541 struct cfg80211_chan_def chandef;
5544 err = nl80211_parse_chandef(rdev, info, &chandef);
5548 if (wdev->cac_started)
5551 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5558 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5561 if (!rdev->ops->start_radar_detection)
5564 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5565 chandef.chan, CHAN_MODE_SHARED,
5566 BIT(chandef.width));
5570 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5572 wdev->channel = chandef.chan;
5573 wdev->cac_started = true;
5574 wdev->cac_start_time = jiffies;
5579 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5581 struct cfg80211_registered_device *rdev,
5582 struct wireless_dev *wdev,
5583 struct cfg80211_internal_bss *intbss)
5585 struct cfg80211_bss *res = &intbss->pub;
5586 const struct cfg80211_bss_ies *ies;
5591 ASSERT_WDEV_LOCK(wdev);
5593 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5594 NL80211_CMD_NEW_SCAN_RESULTS);
5598 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5600 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5601 goto nla_put_failure;
5603 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5604 goto nla_put_failure;
5605 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5606 goto nla_put_failure;
5608 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5610 goto nla_put_failure;
5611 if ((!is_zero_ether_addr(res->bssid) &&
5612 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5613 goto nla_put_failure;
5616 ies = rcu_dereference(res->ies);
5618 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5619 goto fail_unlock_rcu;
5621 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5622 ies->len, ies->data))
5623 goto fail_unlock_rcu;
5625 ies = rcu_dereference(res->beacon_ies);
5627 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5628 goto fail_unlock_rcu;
5629 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5630 ies->len, ies->data))
5631 goto fail_unlock_rcu;
5635 if (res->beacon_interval &&
5636 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5637 goto nla_put_failure;
5638 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5639 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5640 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5641 jiffies_to_msecs(jiffies - intbss->ts)))
5642 goto nla_put_failure;
5644 switch (rdev->wiphy.signal_type) {
5645 case CFG80211_SIGNAL_TYPE_MBM:
5646 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5647 goto nla_put_failure;
5649 case CFG80211_SIGNAL_TYPE_UNSPEC:
5650 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5651 goto nla_put_failure;
5657 switch (wdev->iftype) {
5658 case NL80211_IFTYPE_P2P_CLIENT:
5659 case NL80211_IFTYPE_STATION:
5660 if (intbss == wdev->current_bss &&
5661 nla_put_u32(msg, NL80211_BSS_STATUS,
5662 NL80211_BSS_STATUS_ASSOCIATED))
5663 goto nla_put_failure;
5665 case NL80211_IFTYPE_ADHOC:
5666 if (intbss == wdev->current_bss &&
5667 nla_put_u32(msg, NL80211_BSS_STATUS,
5668 NL80211_BSS_STATUS_IBSS_JOINED))
5669 goto nla_put_failure;
5675 nla_nest_end(msg, bss);
5677 return genlmsg_end(msg, hdr);
5682 genlmsg_cancel(msg, hdr);
5686 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
5688 struct cfg80211_registered_device *rdev;
5689 struct cfg80211_internal_bss *scan;
5690 struct wireless_dev *wdev;
5691 int start = cb->args[2], idx = 0;
5694 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5699 spin_lock_bh(&rdev->bss_lock);
5700 cfg80211_bss_expire(rdev);
5702 cb->seq = rdev->bss_generation;
5704 list_for_each_entry(scan, &rdev->bss_list, list) {
5707 if (nl80211_send_bss(skb, cb,
5708 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5709 rdev, wdev, scan) < 0) {
5715 spin_unlock_bh(&rdev->bss_lock);
5719 nl80211_finish_wdev_dump(rdev);
5724 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5725 int flags, struct net_device *dev,
5726 struct survey_info *survey)
5729 struct nlattr *infoattr;
5731 hdr = nl80211hdr_put(msg, portid, seq, flags,
5732 NL80211_CMD_NEW_SURVEY_RESULTS);
5736 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5737 goto nla_put_failure;
5739 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5741 goto nla_put_failure;
5743 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5744 survey->channel->center_freq))
5745 goto nla_put_failure;
5747 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5748 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5749 goto nla_put_failure;
5750 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5751 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5752 goto nla_put_failure;
5753 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5754 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5755 survey->channel_time))
5756 goto nla_put_failure;
5757 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5758 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5759 survey->channel_time_busy))
5760 goto nla_put_failure;
5761 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5762 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5763 survey->channel_time_ext_busy))
5764 goto nla_put_failure;
5765 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5766 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5767 survey->channel_time_rx))
5768 goto nla_put_failure;
5769 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5770 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5771 survey->channel_time_tx))
5772 goto nla_put_failure;
5774 nla_nest_end(msg, infoattr);
5776 return genlmsg_end(msg, hdr);
5779 genlmsg_cancel(msg, hdr);
5783 static int nl80211_dump_survey(struct sk_buff *skb,
5784 struct netlink_callback *cb)
5786 struct survey_info survey;
5787 struct cfg80211_registered_device *dev;
5788 struct wireless_dev *wdev;
5789 int survey_idx = cb->args[2];
5792 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
5796 if (!wdev->netdev) {
5801 if (!dev->ops->dump_survey) {
5807 struct ieee80211_channel *chan;
5809 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
5815 /* Survey without a channel doesn't make sense */
5816 if (!survey.channel) {
5821 chan = ieee80211_get_channel(&dev->wiphy,
5822 survey.channel->center_freq);
5823 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5828 if (nl80211_send_survey(skb,
5829 NETLINK_CB(cb->skb).portid,
5830 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5831 wdev->netdev, &survey) < 0)
5837 cb->args[2] = survey_idx;
5840 nl80211_finish_wdev_dump(dev);
5844 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5846 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5847 NL80211_WPA_VERSION_2));
5850 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5853 struct net_device *dev = info->user_ptr[1];
5854 struct ieee80211_channel *chan;
5855 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5856 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5857 enum nl80211_auth_type auth_type;
5858 struct key_parse key;
5859 bool local_state_change;
5861 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5864 if (!info->attrs[NL80211_ATTR_MAC])
5867 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5870 if (!info->attrs[NL80211_ATTR_SSID])
5873 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5876 err = nl80211_parse_key(info, &key);
5881 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5883 if (!key.p.key || !key.p.key_len)
5885 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5886 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5887 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5888 key.p.key_len != WLAN_KEY_LEN_WEP104))
5900 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5901 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5910 if (!rdev->ops->auth)
5913 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5914 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5917 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5918 chan = ieee80211_get_channel(&rdev->wiphy,
5919 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5920 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5923 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5924 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5926 if (info->attrs[NL80211_ATTR_IE]) {
5927 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5928 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5931 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5932 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5935 if (auth_type == NL80211_AUTHTYPE_SAE &&
5936 !info->attrs[NL80211_ATTR_SAE_DATA])
5939 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5940 if (auth_type != NL80211_AUTHTYPE_SAE)
5942 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5943 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5944 /* need to include at least Auth Transaction and Status Code */
5945 if (sae_data_len < 4)
5949 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5952 * Since we no longer track auth state, ignore
5953 * requests to only change local state.
5955 if (local_state_change)
5958 wdev_lock(dev->ieee80211_ptr);
5959 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5960 ssid, ssid_len, ie, ie_len,
5961 key.p.key, key.p.key_len, key.idx,
5962 sae_data, sae_data_len);
5963 wdev_unlock(dev->ieee80211_ptr);
5967 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5968 struct genl_info *info,
5969 struct cfg80211_crypto_settings *settings,
5972 memset(settings, 0, sizeof(*settings));
5974 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5976 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5978 proto = nla_get_u16(
5979 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5980 settings->control_port_ethertype = cpu_to_be16(proto);
5981 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5984 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5985 settings->control_port_no_encrypt = true;
5987 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5989 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5993 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5994 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5995 settings->n_ciphers_pairwise = len / sizeof(u32);
5997 if (len % sizeof(u32))
6000 if (settings->n_ciphers_pairwise > cipher_limit)
6003 memcpy(settings->ciphers_pairwise, data, len);
6005 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6006 if (!cfg80211_supported_cipher_suite(
6008 settings->ciphers_pairwise[i]))
6012 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6013 settings->cipher_group =
6014 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6015 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6016 settings->cipher_group))
6020 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6021 settings->wpa_versions =
6022 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6023 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6027 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6031 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6032 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6033 settings->n_akm_suites = len / sizeof(u32);
6035 if (len % sizeof(u32))
6038 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6041 memcpy(settings->akm_suites, data, len);
6047 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6050 struct net_device *dev = info->user_ptr[1];
6051 struct ieee80211_channel *chan;
6052 struct cfg80211_assoc_request req = {};
6053 const u8 *bssid, *ssid;
6054 int err, ssid_len = 0;
6056 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6059 if (!info->attrs[NL80211_ATTR_MAC] ||
6060 !info->attrs[NL80211_ATTR_SSID] ||
6061 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6064 if (!rdev->ops->assoc)
6067 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6068 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6071 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6073 chan = ieee80211_get_channel(&rdev->wiphy,
6074 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6075 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6078 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6079 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6081 if (info->attrs[NL80211_ATTR_IE]) {
6082 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6083 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6086 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6087 enum nl80211_mfp mfp =
6088 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6089 if (mfp == NL80211_MFP_REQUIRED)
6091 else if (mfp != NL80211_MFP_NO)
6095 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6096 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6098 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6099 req.flags |= ASSOC_REQ_DISABLE_HT;
6101 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6102 memcpy(&req.ht_capa_mask,
6103 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6104 sizeof(req.ht_capa_mask));
6106 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6107 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6109 memcpy(&req.ht_capa,
6110 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6111 sizeof(req.ht_capa));
6114 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6115 req.flags |= ASSOC_REQ_DISABLE_VHT;
6117 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6118 memcpy(&req.vht_capa_mask,
6119 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6120 sizeof(req.vht_capa_mask));
6122 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6123 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6125 memcpy(&req.vht_capa,
6126 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6127 sizeof(req.vht_capa));
6130 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6132 wdev_lock(dev->ieee80211_ptr);
6133 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6134 ssid, ssid_len, &req);
6135 wdev_unlock(dev->ieee80211_ptr);
6141 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6143 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6144 struct net_device *dev = info->user_ptr[1];
6145 const u8 *ie = NULL, *bssid;
6146 int ie_len = 0, err;
6148 bool local_state_change;
6150 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6153 if (!info->attrs[NL80211_ATTR_MAC])
6156 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6159 if (!rdev->ops->deauth)
6162 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6163 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6166 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6168 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6169 if (reason_code == 0) {
6170 /* Reason Code 0 is reserved */
6174 if (info->attrs[NL80211_ATTR_IE]) {
6175 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6176 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6179 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6181 wdev_lock(dev->ieee80211_ptr);
6182 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6183 local_state_change);
6184 wdev_unlock(dev->ieee80211_ptr);
6188 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6190 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6191 struct net_device *dev = info->user_ptr[1];
6192 const u8 *ie = NULL, *bssid;
6193 int ie_len = 0, err;
6195 bool local_state_change;
6197 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6200 if (!info->attrs[NL80211_ATTR_MAC])
6203 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6206 if (!rdev->ops->disassoc)
6209 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6210 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6213 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6215 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6216 if (reason_code == 0) {
6217 /* Reason Code 0 is reserved */
6221 if (info->attrs[NL80211_ATTR_IE]) {
6222 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6223 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6226 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6228 wdev_lock(dev->ieee80211_ptr);
6229 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6230 local_state_change);
6231 wdev_unlock(dev->ieee80211_ptr);
6236 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6237 int mcast_rate[IEEE80211_NUM_BANDS],
6240 struct wiphy *wiphy = &rdev->wiphy;
6244 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6245 struct ieee80211_supported_band *sband;
6247 sband = wiphy->bands[band];
6251 for (i = 0; i < sband->n_bitrates; i++) {
6252 if (sband->bitrates[i].bitrate == rateval) {
6253 mcast_rate[band] = i + 1;
6263 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6265 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6266 struct net_device *dev = info->user_ptr[1];
6267 struct cfg80211_ibss_params ibss;
6268 struct wiphy *wiphy;
6269 struct cfg80211_cached_keys *connkeys = NULL;
6272 memset(&ibss, 0, sizeof(ibss));
6274 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6277 if (!info->attrs[NL80211_ATTR_SSID] ||
6278 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6281 ibss.beacon_interval = 100;
6283 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6284 ibss.beacon_interval =
6285 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6286 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6290 if (!rdev->ops->join_ibss)
6293 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6296 wiphy = &rdev->wiphy;
6298 if (info->attrs[NL80211_ATTR_MAC]) {
6299 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6301 if (!is_valid_ether_addr(ibss.bssid))
6304 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6305 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6307 if (info->attrs[NL80211_ATTR_IE]) {
6308 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6309 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6312 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6316 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6319 switch (ibss.chandef.width) {
6320 case NL80211_CHAN_WIDTH_20_NOHT:
6322 case NL80211_CHAN_WIDTH_20:
6323 case NL80211_CHAN_WIDTH_40:
6324 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6330 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6331 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6333 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6335 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6337 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6338 struct ieee80211_supported_band *sband =
6339 wiphy->bands[ibss.chandef.chan->band];
6341 err = ieee80211_get_ratemask(sband, rates, n_rates,
6347 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6348 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6349 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6352 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6355 connkeys = nl80211_parse_connkeys(rdev,
6356 info->attrs[NL80211_ATTR_KEYS],
6358 if (IS_ERR(connkeys))
6359 return PTR_ERR(connkeys);
6361 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6369 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6371 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6377 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6379 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6380 struct net_device *dev = info->user_ptr[1];
6382 if (!rdev->ops->leave_ibss)
6385 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6388 return cfg80211_leave_ibss(rdev, dev, false);
6391 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6393 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6394 struct net_device *dev = info->user_ptr[1];
6395 int mcast_rate[IEEE80211_NUM_BANDS];
6399 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6400 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6403 if (!rdev->ops->set_mcast_rate)
6406 memset(mcast_rate, 0, sizeof(mcast_rate));
6408 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6411 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6412 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6415 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6421 #ifdef CONFIG_NL80211_TESTMODE
6422 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6426 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6428 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6431 if (!info->attrs[NL80211_ATTR_TESTDATA])
6435 if (rdev->ops->testmode_cmd) {
6436 rdev->testmode_info = info;
6437 err = rdev_testmode_cmd(rdev,
6438 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6439 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6440 rdev->testmode_info = NULL;
6446 static int nl80211_testmode_dump(struct sk_buff *skb,
6447 struct netlink_callback *cb)
6449 struct cfg80211_registered_device *rdev;
6459 * 0 is a valid index, but not valid for args[0],
6460 * so we need to offset by 1.
6462 phy_idx = cb->args[0] - 1;
6464 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6465 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6470 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6471 nl80211_fam.attrbuf);
6473 err = PTR_ERR(rdev);
6476 phy_idx = rdev->wiphy_idx;
6479 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6481 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6485 data = nla_data((void *)cb->args[1]);
6486 data_len = nla_len((void *)cb->args[1]);
6489 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6495 if (!rdev->ops->testmode_dump) {
6501 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6502 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6503 NL80211_CMD_TESTMODE);
6504 struct nlattr *tmdata;
6506 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6507 genlmsg_cancel(skb, hdr);
6511 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6513 genlmsg_cancel(skb, hdr);
6516 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6517 nla_nest_end(skb, tmdata);
6519 if (err == -ENOBUFS || err == -ENOENT) {
6520 genlmsg_cancel(skb, hdr);
6523 genlmsg_cancel(skb, hdr);
6527 genlmsg_end(skb, hdr);
6532 cb->args[0] = phy_idx + 1;
6538 static struct sk_buff *
6539 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6540 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6542 struct sk_buff *skb;
6544 struct nlattr *data;
6546 skb = nlmsg_new(approxlen + 100, gfp);
6550 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6556 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6557 goto nla_put_failure;
6558 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6560 ((void **)skb->cb)[0] = rdev;
6561 ((void **)skb->cb)[1] = hdr;
6562 ((void **)skb->cb)[2] = data;
6571 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6574 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6576 if (WARN_ON(!rdev->testmode_info))
6579 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6580 rdev->testmode_info->snd_portid,
6581 rdev->testmode_info->snd_seq,
6584 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6586 int cfg80211_testmode_reply(struct sk_buff *skb)
6588 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6589 void *hdr = ((void **)skb->cb)[1];
6590 struct nlattr *data = ((void **)skb->cb)[2];
6592 if (WARN_ON(!rdev->testmode_info)) {
6597 nla_nest_end(skb, data);
6598 genlmsg_end(skb, hdr);
6599 return genlmsg_reply(skb, rdev->testmode_info);
6601 EXPORT_SYMBOL(cfg80211_testmode_reply);
6603 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6604 int approxlen, gfp_t gfp)
6606 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6608 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6610 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6612 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6614 void *hdr = ((void **)skb->cb)[1];
6615 struct nlattr *data = ((void **)skb->cb)[2];
6617 nla_nest_end(skb, data);
6618 genlmsg_end(skb, hdr);
6619 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6621 EXPORT_SYMBOL(cfg80211_testmode_event);
6624 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6626 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6627 struct net_device *dev = info->user_ptr[1];
6628 struct cfg80211_connect_params connect;
6629 struct wiphy *wiphy;
6630 struct cfg80211_cached_keys *connkeys = NULL;
6633 memset(&connect, 0, sizeof(connect));
6635 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6638 if (!info->attrs[NL80211_ATTR_SSID] ||
6639 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6642 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6644 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6645 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6646 NL80211_CMD_CONNECT))
6649 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6651 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6653 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6654 NL80211_MAX_NR_CIPHER_SUITES);
6658 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6659 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6662 wiphy = &rdev->wiphy;
6664 connect.bg_scan_period = -1;
6665 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6666 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6667 connect.bg_scan_period =
6668 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6671 if (info->attrs[NL80211_ATTR_MAC])
6672 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6673 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6674 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6676 if (info->attrs[NL80211_ATTR_IE]) {
6677 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6678 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6681 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6682 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6683 if (connect.mfp != NL80211_MFP_REQUIRED &&
6684 connect.mfp != NL80211_MFP_NO)
6687 connect.mfp = NL80211_MFP_NO;
6690 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6692 ieee80211_get_channel(wiphy,
6693 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6694 if (!connect.channel ||
6695 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6699 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6700 connkeys = nl80211_parse_connkeys(rdev,
6701 info->attrs[NL80211_ATTR_KEYS], NULL);
6702 if (IS_ERR(connkeys))
6703 return PTR_ERR(connkeys);
6706 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6707 connect.flags |= ASSOC_REQ_DISABLE_HT;
6709 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6710 memcpy(&connect.ht_capa_mask,
6711 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6712 sizeof(connect.ht_capa_mask));
6714 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6715 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6719 memcpy(&connect.ht_capa,
6720 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6721 sizeof(connect.ht_capa));
6724 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6725 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6727 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6728 memcpy(&connect.vht_capa_mask,
6729 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6730 sizeof(connect.vht_capa_mask));
6732 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6733 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6737 memcpy(&connect.vht_capa,
6738 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6739 sizeof(connect.vht_capa));
6742 wdev_lock(dev->ieee80211_ptr);
6743 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6744 wdev_unlock(dev->ieee80211_ptr);
6750 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6753 struct net_device *dev = info->user_ptr[1];
6757 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6758 reason = WLAN_REASON_DEAUTH_LEAVING;
6760 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6765 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6766 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6769 wdev_lock(dev->ieee80211_ptr);
6770 ret = cfg80211_disconnect(rdev, dev, reason, true);
6771 wdev_unlock(dev->ieee80211_ptr);
6775 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6782 if (!info->attrs[NL80211_ATTR_PID])
6785 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6787 net = get_net_ns_by_pid(pid);
6789 return PTR_ERR(net);
6793 /* check if anything to do */
6794 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6795 err = cfg80211_switch_netns(rdev, net);
6801 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6804 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6805 struct cfg80211_pmksa *pmksa) = NULL;
6806 struct net_device *dev = info->user_ptr[1];
6807 struct cfg80211_pmksa pmksa;
6809 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6811 if (!info->attrs[NL80211_ATTR_MAC])
6814 if (!info->attrs[NL80211_ATTR_PMKID])
6817 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6818 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6820 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6821 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6824 switch (info->genlhdr->cmd) {
6825 case NL80211_CMD_SET_PMKSA:
6826 rdev_ops = rdev->ops->set_pmksa;
6828 case NL80211_CMD_DEL_PMKSA:
6829 rdev_ops = rdev->ops->del_pmksa;
6839 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6842 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6844 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6845 struct net_device *dev = info->user_ptr[1];
6847 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6848 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6851 if (!rdev->ops->flush_pmksa)
6854 return rdev_flush_pmksa(rdev, dev);
6857 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6859 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6860 struct net_device *dev = info->user_ptr[1];
6861 u8 action_code, dialog_token;
6865 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6866 !rdev->ops->tdls_mgmt)
6869 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6870 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6871 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6872 !info->attrs[NL80211_ATTR_IE] ||
6873 !info->attrs[NL80211_ATTR_MAC])
6876 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6877 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6878 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6879 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6881 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6882 dialog_token, status_code,
6883 nla_data(info->attrs[NL80211_ATTR_IE]),
6884 nla_len(info->attrs[NL80211_ATTR_IE]));
6887 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6889 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6890 struct net_device *dev = info->user_ptr[1];
6891 enum nl80211_tdls_operation operation;
6894 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6895 !rdev->ops->tdls_oper)
6898 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6899 !info->attrs[NL80211_ATTR_MAC])
6902 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6903 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6905 return rdev_tdls_oper(rdev, dev, peer, operation);
6908 static int nl80211_remain_on_channel(struct sk_buff *skb,
6909 struct genl_info *info)
6911 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6912 struct wireless_dev *wdev = info->user_ptr[1];
6913 struct cfg80211_chan_def chandef;
6914 struct sk_buff *msg;
6920 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6921 !info->attrs[NL80211_ATTR_DURATION])
6924 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6926 if (!rdev->ops->remain_on_channel ||
6927 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6931 * We should be on that channel for at least a minimum amount of
6932 * time (10ms) but no longer than the driver supports.
6934 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6935 duration > rdev->wiphy.max_remain_on_channel_duration)
6938 err = nl80211_parse_chandef(rdev, info, &chandef);
6942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6946 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6947 NL80211_CMD_REMAIN_ON_CHANNEL);
6954 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6960 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6961 goto nla_put_failure;
6963 genlmsg_end(msg, hdr);
6965 return genlmsg_reply(msg, info);
6974 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6975 struct genl_info *info)
6977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6978 struct wireless_dev *wdev = info->user_ptr[1];
6981 if (!info->attrs[NL80211_ATTR_COOKIE])
6984 if (!rdev->ops->cancel_remain_on_channel)
6987 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6989 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6992 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6993 u8 *rates, u8 rates_len)
6998 for (i = 0; i < rates_len; i++) {
6999 int rate = (rates[i] & 0x7f) * 5;
7001 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7002 struct ieee80211_rate *srate =
7003 &sband->bitrates[ridx];
7004 if (rate == srate->bitrate) {
7009 if (ridx == sband->n_bitrates)
7010 return 0; /* rate not found */
7016 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7017 u8 *rates, u8 rates_len,
7018 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7022 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7024 for (i = 0; i < rates_len; i++) {
7027 ridx = rates[i] / 8;
7028 rbit = BIT(rates[i] % 8);
7030 /* check validity */
7031 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7034 /* check availability */
7035 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7044 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7045 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7046 .len = NL80211_MAX_SUPP_RATES },
7047 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7048 .len = NL80211_MAX_SUPP_HT_RATES },
7051 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7052 struct genl_info *info)
7054 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7056 struct cfg80211_bitrate_mask mask;
7058 struct net_device *dev = info->user_ptr[1];
7059 struct nlattr *tx_rates;
7060 struct ieee80211_supported_band *sband;
7062 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7065 if (!rdev->ops->set_bitrate_mask)
7068 memset(&mask, 0, sizeof(mask));
7069 /* Default to all rates enabled */
7070 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7071 sband = rdev->wiphy.bands[i];
7072 mask.control[i].legacy =
7073 sband ? (1 << sband->n_bitrates) - 1 : 0;
7075 memcpy(mask.control[i].mcs,
7076 sband->ht_cap.mcs.rx_mask,
7077 sizeof(mask.control[i].mcs));
7079 memset(mask.control[i].mcs, 0,
7080 sizeof(mask.control[i].mcs));
7084 * The nested attribute uses enum nl80211_band as the index. This maps
7085 * directly to the enum ieee80211_band values used in cfg80211.
7087 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7088 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7090 enum ieee80211_band band = nla_type(tx_rates);
7091 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7093 sband = rdev->wiphy.bands[band];
7096 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7097 nla_len(tx_rates), nl80211_txattr_policy);
7098 if (tb[NL80211_TXRATE_LEGACY]) {
7099 mask.control[band].legacy = rateset_to_mask(
7101 nla_data(tb[NL80211_TXRATE_LEGACY]),
7102 nla_len(tb[NL80211_TXRATE_LEGACY]));
7103 if ((mask.control[band].legacy == 0) &&
7104 nla_len(tb[NL80211_TXRATE_LEGACY]))
7107 if (tb[NL80211_TXRATE_MCS]) {
7108 if (!ht_rateset_to_mask(
7110 nla_data(tb[NL80211_TXRATE_MCS]),
7111 nla_len(tb[NL80211_TXRATE_MCS]),
7112 mask.control[band].mcs))
7116 if (mask.control[band].legacy == 0) {
7117 /* don't allow empty legacy rates if HT
7118 * is not even supported. */
7119 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7122 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7123 if (mask.control[band].mcs[i])
7126 /* legacy and mcs rates may not be both empty */
7127 if (i == IEEE80211_HT_MCS_MASK_LEN)
7132 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7135 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7138 struct wireless_dev *wdev = info->user_ptr[1];
7139 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7141 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7144 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7145 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7147 switch (wdev->iftype) {
7148 case NL80211_IFTYPE_STATION:
7149 case NL80211_IFTYPE_ADHOC:
7150 case NL80211_IFTYPE_P2P_CLIENT:
7151 case NL80211_IFTYPE_AP:
7152 case NL80211_IFTYPE_AP_VLAN:
7153 case NL80211_IFTYPE_MESH_POINT:
7154 case NL80211_IFTYPE_P2P_GO:
7155 case NL80211_IFTYPE_P2P_DEVICE:
7161 /* not much point in registering if we can't reply */
7162 if (!rdev->ops->mgmt_tx)
7165 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7166 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7167 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7170 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7173 struct wireless_dev *wdev = info->user_ptr[1];
7174 struct cfg80211_chan_def chandef;
7178 struct sk_buff *msg = NULL;
7179 unsigned int wait = 0;
7180 bool offchan, no_cck, dont_wait_for_ack;
7182 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
7184 if (!info->attrs[NL80211_ATTR_FRAME])
7187 if (!rdev->ops->mgmt_tx)
7190 switch (wdev->iftype) {
7191 case NL80211_IFTYPE_P2P_DEVICE:
7192 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7194 case NL80211_IFTYPE_STATION:
7195 case NL80211_IFTYPE_ADHOC:
7196 case NL80211_IFTYPE_P2P_CLIENT:
7197 case NL80211_IFTYPE_AP:
7198 case NL80211_IFTYPE_AP_VLAN:
7199 case NL80211_IFTYPE_MESH_POINT:
7200 case NL80211_IFTYPE_P2P_GO:
7206 if (info->attrs[NL80211_ATTR_DURATION]) {
7207 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7209 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7212 * We should wait on the channel for at least a minimum amount
7213 * of time (10ms) but no longer than the driver supports.
7215 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7216 wait > rdev->wiphy.max_remain_on_channel_duration)
7221 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7223 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7226 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7228 /* get the channel if any has been specified, otherwise pass NULL to
7229 * the driver. The latter will use the current one
7231 chandef.chan = NULL;
7232 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7233 err = nl80211_parse_chandef(rdev, info, &chandef);
7238 if (!chandef.chan && offchan)
7241 if (!dont_wait_for_ack) {
7242 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7246 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7255 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
7256 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7257 nla_len(info->attrs[NL80211_ATTR_FRAME]),
7258 no_cck, dont_wait_for_ack, &cookie);
7263 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7264 goto nla_put_failure;
7266 genlmsg_end(msg, hdr);
7267 return genlmsg_reply(msg, info);
7279 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7282 struct wireless_dev *wdev = info->user_ptr[1];
7285 if (!info->attrs[NL80211_ATTR_COOKIE])
7288 if (!rdev->ops->mgmt_tx_cancel_wait)
7291 switch (wdev->iftype) {
7292 case NL80211_IFTYPE_STATION:
7293 case NL80211_IFTYPE_ADHOC:
7294 case NL80211_IFTYPE_P2P_CLIENT:
7295 case NL80211_IFTYPE_AP:
7296 case NL80211_IFTYPE_AP_VLAN:
7297 case NL80211_IFTYPE_P2P_GO:
7298 case NL80211_IFTYPE_P2P_DEVICE:
7304 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7306 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7309 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7312 struct wireless_dev *wdev;
7313 struct net_device *dev = info->user_ptr[1];
7318 if (!info->attrs[NL80211_ATTR_PS_STATE])
7321 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7323 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7326 wdev = dev->ieee80211_ptr;
7328 if (!rdev->ops->set_power_mgmt)
7331 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7333 if (state == wdev->ps)
7336 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7342 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7344 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7345 enum nl80211_ps_state ps_state;
7346 struct wireless_dev *wdev;
7347 struct net_device *dev = info->user_ptr[1];
7348 struct sk_buff *msg;
7352 wdev = dev->ieee80211_ptr;
7354 if (!rdev->ops->set_power_mgmt)
7357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7361 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7362 NL80211_CMD_GET_POWER_SAVE);
7369 ps_state = NL80211_PS_ENABLED;
7371 ps_state = NL80211_PS_DISABLED;
7373 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7374 goto nla_put_failure;
7376 genlmsg_end(msg, hdr);
7377 return genlmsg_reply(msg, info);
7386 static struct nla_policy
7387 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7388 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7389 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7390 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7391 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7392 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7393 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7396 static int nl80211_set_cqm_txe(struct genl_info *info,
7397 u32 rate, u32 pkts, u32 intvl)
7399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7400 struct wireless_dev *wdev;
7401 struct net_device *dev = info->user_ptr[1];
7403 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7406 wdev = dev->ieee80211_ptr;
7408 if (!rdev->ops->set_cqm_txe_config)
7411 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7412 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7415 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7418 static int nl80211_set_cqm_rssi(struct genl_info *info,
7419 s32 threshold, u32 hysteresis)
7421 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7422 struct wireless_dev *wdev;
7423 struct net_device *dev = info->user_ptr[1];
7428 wdev = dev->ieee80211_ptr;
7430 if (!rdev->ops->set_cqm_rssi_config)
7433 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7434 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7437 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7440 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7442 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7446 cqm = info->attrs[NL80211_ATTR_CQM];
7452 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7453 nl80211_attr_cqm_policy);
7457 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7458 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7461 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7462 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7463 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
7464 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7465 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7466 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7467 u32 rate, pkts, intvl;
7468 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7469 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7470 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7471 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7479 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7482 struct net_device *dev = info->user_ptr[1];
7483 struct mesh_config cfg;
7484 struct mesh_setup setup;
7487 /* start with default */
7488 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7489 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7491 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7492 /* and parse parameters if given */
7493 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7498 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7499 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7502 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7503 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7505 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7506 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7507 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7510 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7511 setup.beacon_interval =
7512 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7513 if (setup.beacon_interval < 10 ||
7514 setup.beacon_interval > 10000)
7518 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7520 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7521 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7525 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7526 /* parse additional setup parameters if given */
7527 err = nl80211_parse_mesh_setup(info, &setup);
7533 cfg.auto_open_plinks = false;
7535 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7536 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7540 /* cfg80211_join_mesh() will sort it out */
7541 setup.chandef.chan = NULL;
7544 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7545 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7547 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7548 struct ieee80211_supported_band *sband;
7550 if (!setup.chandef.chan)
7553 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7555 err = ieee80211_get_ratemask(sband, rates, n_rates,
7556 &setup.basic_rates);
7561 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7564 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7567 struct net_device *dev = info->user_ptr[1];
7569 return cfg80211_leave_mesh(rdev, dev);
7573 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7574 struct cfg80211_registered_device *rdev)
7576 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
7577 struct nlattr *nl_pats, *nl_pat;
7580 if (!wowlan->n_patterns)
7583 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7587 for (i = 0; i < wowlan->n_patterns; i++) {
7588 nl_pat = nla_nest_start(msg, i + 1);
7591 pat_len = wowlan->patterns[i].pattern_len;
7592 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7593 DIV_ROUND_UP(pat_len, 8),
7594 wowlan->patterns[i].mask) ||
7595 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7596 pat_len, wowlan->patterns[i].pattern) ||
7597 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7598 wowlan->patterns[i].pkt_offset))
7600 nla_nest_end(msg, nl_pat);
7602 nla_nest_end(msg, nl_pats);
7607 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7608 struct cfg80211_wowlan_tcp *tcp)
7610 struct nlattr *nl_tcp;
7615 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7619 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7620 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7621 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7622 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7623 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7624 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7625 tcp->payload_len, tcp->payload) ||
7626 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7627 tcp->data_interval) ||
7628 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7629 tcp->wake_len, tcp->wake_data) ||
7630 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7631 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7634 if (tcp->payload_seq.len &&
7635 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7636 sizeof(tcp->payload_seq), &tcp->payload_seq))
7639 if (tcp->payload_tok.len &&
7640 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7641 sizeof(tcp->payload_tok) + tcp->tokens_size,
7645 nla_nest_end(msg, nl_tcp);
7650 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7652 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7653 struct sk_buff *msg;
7655 u32 size = NLMSG_DEFAULT_SIZE;
7657 if (!rdev->wiphy.wowlan)
7660 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
7661 /* adjust size to have room for all the data */
7662 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7663 rdev->wiphy.wowlan_config->tcp->payload_len +
7664 rdev->wiphy.wowlan_config->tcp->wake_len +
7665 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
7668 msg = nlmsg_new(size, GFP_KERNEL);
7672 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7673 NL80211_CMD_GET_WOWLAN);
7675 goto nla_put_failure;
7677 if (rdev->wiphy.wowlan_config) {
7678 struct nlattr *nl_wowlan;
7680 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7682 goto nla_put_failure;
7684 if ((rdev->wiphy.wowlan_config->any &&
7685 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7686 (rdev->wiphy.wowlan_config->disconnect &&
7687 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7688 (rdev->wiphy.wowlan_config->magic_pkt &&
7689 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7690 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
7691 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7692 (rdev->wiphy.wowlan_config->eap_identity_req &&
7693 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7694 (rdev->wiphy.wowlan_config->four_way_handshake &&
7695 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7696 (rdev->wiphy.wowlan_config->rfkill_release &&
7697 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7698 goto nla_put_failure;
7700 if (nl80211_send_wowlan_patterns(msg, rdev))
7701 goto nla_put_failure;
7703 if (nl80211_send_wowlan_tcp(msg,
7704 rdev->wiphy.wowlan_config->tcp))
7705 goto nla_put_failure;
7707 nla_nest_end(msg, nl_wowlan);
7710 genlmsg_end(msg, hdr);
7711 return genlmsg_reply(msg, info);
7718 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7719 struct nlattr *attr,
7720 struct cfg80211_wowlan *trig)
7722 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7723 struct cfg80211_wowlan_tcp *cfg;
7724 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7725 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7727 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7730 if (!rdev->wiphy.wowlan->tcp)
7733 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7734 nla_data(attr), nla_len(attr),
7735 nl80211_wowlan_tcp_policy);
7739 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7740 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7741 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7742 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7743 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7744 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7745 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7746 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7749 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7750 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
7753 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7754 rdev->wiphy.wowlan->tcp->data_interval_max ||
7755 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
7758 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7759 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
7762 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7763 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7766 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7767 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7769 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7770 tokens_size = tokln - sizeof(*tok);
7772 if (!tok->len || tokens_size % tok->len)
7774 if (!rdev->wiphy.wowlan->tcp->tok)
7776 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
7778 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
7780 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
7782 if (tok->offset + tok->len > data_size)
7786 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7787 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7788 if (!rdev->wiphy.wowlan->tcp->seq)
7790 if (seq->len == 0 || seq->len > 4)
7792 if (seq->len + seq->offset > data_size)
7796 size = sizeof(*cfg);
7798 size += wake_size + wake_mask_size;
7799 size += tokens_size;
7801 cfg = kzalloc(size, GFP_KERNEL);
7804 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7805 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7806 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7808 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7809 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7813 /* allocate a socket and port for it and use it */
7814 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7815 IPPROTO_TCP, &cfg->sock, 1);
7820 if (inet_csk_get_port(cfg->sock->sk, port)) {
7821 sock_release(cfg->sock);
7825 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7831 cfg->src_port = port;
7834 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7835 cfg->payload_len = data_size;
7836 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7837 memcpy((void *)cfg->payload,
7838 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7841 cfg->payload_seq = *seq;
7842 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7843 cfg->wake_len = wake_size;
7844 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7845 memcpy((void *)cfg->wake_data,
7846 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7848 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7849 data_size + wake_size;
7850 memcpy((void *)cfg->wake_mask,
7851 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7854 cfg->tokens_size = tokens_size;
7855 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7863 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7866 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7867 struct cfg80211_wowlan new_triggers = {};
7868 struct cfg80211_wowlan *ntrig;
7869 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
7871 bool prev_enabled = rdev->wiphy.wowlan_config;
7876 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7877 cfg80211_rdev_free_wowlan(rdev);
7878 rdev->wiphy.wowlan_config = NULL;
7882 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7883 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7884 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7885 nl80211_wowlan_policy);
7889 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7890 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7892 new_triggers.any = true;
7895 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7896 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7898 new_triggers.disconnect = true;
7901 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7902 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7904 new_triggers.magic_pkt = true;
7907 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7910 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7911 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7913 new_triggers.gtk_rekey_failure = true;
7916 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7917 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7919 new_triggers.eap_identity_req = true;
7922 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7923 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7925 new_triggers.four_way_handshake = true;
7928 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7929 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7931 new_triggers.rfkill_release = true;
7934 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7937 int rem, pat_len, mask_len, pkt_offset;
7938 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7940 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7943 if (n_patterns > wowlan->n_patterns)
7946 new_triggers.patterns = kcalloc(n_patterns,
7947 sizeof(new_triggers.patterns[0]),
7949 if (!new_triggers.patterns)
7952 new_triggers.n_patterns = n_patterns;
7955 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7957 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7958 nla_data(pat), nla_len(pat), NULL);
7960 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7961 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7963 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7964 mask_len = DIV_ROUND_UP(pat_len, 8);
7965 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7968 if (pat_len > wowlan->pattern_max_len ||
7969 pat_len < wowlan->pattern_min_len)
7972 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7975 pkt_offset = nla_get_u32(
7976 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7977 if (pkt_offset > wowlan->max_pkt_offset)
7979 new_triggers.patterns[i].pkt_offset = pkt_offset;
7981 new_triggers.patterns[i].mask =
7982 kmalloc(mask_len + pat_len, GFP_KERNEL);
7983 if (!new_triggers.patterns[i].mask) {
7987 new_triggers.patterns[i].pattern =
7988 new_triggers.patterns[i].mask + mask_len;
7989 memcpy(new_triggers.patterns[i].mask,
7990 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7992 new_triggers.patterns[i].pattern_len = pat_len;
7993 memcpy(new_triggers.patterns[i].pattern,
7994 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
8000 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8001 err = nl80211_parse_wowlan_tcp(
8002 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8008 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8013 cfg80211_rdev_free_wowlan(rdev);
8014 rdev->wiphy.wowlan_config = ntrig;
8017 if (rdev->ops->set_wakeup &&
8018 prev_enabled != !!rdev->wiphy.wowlan_config)
8019 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8023 for (i = 0; i < new_triggers.n_patterns; i++)
8024 kfree(new_triggers.patterns[i].mask);
8025 kfree(new_triggers.patterns);
8026 if (new_triggers.tcp && new_triggers.tcp->sock)
8027 sock_release(new_triggers.tcp->sock);
8028 kfree(new_triggers.tcp);
8033 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8036 struct net_device *dev = info->user_ptr[1];
8037 struct wireless_dev *wdev = dev->ieee80211_ptr;
8038 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8039 struct cfg80211_gtk_rekey_data rekey_data;
8042 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8045 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8046 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8047 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8048 nl80211_rekey_policy);
8052 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8054 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8056 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8059 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8061 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8063 memcpy(rekey_data.replay_ctr,
8064 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8065 NL80211_REPLAY_CTR_LEN);
8068 if (!wdev->current_bss) {
8073 if (!rdev->ops->set_rekey_data) {
8078 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8084 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8085 struct genl_info *info)
8087 struct net_device *dev = info->user_ptr[1];
8088 struct wireless_dev *wdev = dev->ieee80211_ptr;
8090 if (wdev->iftype != NL80211_IFTYPE_AP &&
8091 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8094 if (wdev->ap_unexpected_nlportid)
8097 wdev->ap_unexpected_nlportid = info->snd_portid;
8101 static int nl80211_probe_client(struct sk_buff *skb,
8102 struct genl_info *info)
8104 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8105 struct net_device *dev = info->user_ptr[1];
8106 struct wireless_dev *wdev = dev->ieee80211_ptr;
8107 struct sk_buff *msg;
8113 if (wdev->iftype != NL80211_IFTYPE_AP &&
8114 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8117 if (!info->attrs[NL80211_ATTR_MAC])
8120 if (!rdev->ops->probe_client)
8123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8127 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8128 NL80211_CMD_PROBE_CLIENT);
8135 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8137 err = rdev_probe_client(rdev, dev, addr, &cookie);
8141 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8142 goto nla_put_failure;
8144 genlmsg_end(msg, hdr);
8146 return genlmsg_reply(msg, info);
8155 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8158 struct cfg80211_beacon_registration *reg, *nreg;
8161 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8164 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8168 /* First, check if already registered. */
8169 spin_lock_bh(&rdev->beacon_registrations_lock);
8170 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8171 if (reg->nlportid == info->snd_portid) {
8176 /* Add it to the list */
8177 nreg->nlportid = info->snd_portid;
8178 list_add(&nreg->list, &rdev->beacon_registrations);
8180 spin_unlock_bh(&rdev->beacon_registrations_lock);
8184 spin_unlock_bh(&rdev->beacon_registrations_lock);
8189 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8192 struct wireless_dev *wdev = info->user_ptr[1];
8195 if (!rdev->ops->start_p2p_device)
8198 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8201 if (wdev->p2p_started)
8204 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8208 err = rdev_start_p2p_device(rdev, wdev);
8212 wdev->p2p_started = true;
8218 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8220 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8221 struct wireless_dev *wdev = info->user_ptr[1];
8223 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8226 if (!rdev->ops->stop_p2p_device)
8229 cfg80211_stop_p2p_device(rdev, wdev);
8234 static int nl80211_get_protocol_features(struct sk_buff *skb,
8235 struct genl_info *info)
8238 struct sk_buff *msg;
8240 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8244 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8245 NL80211_CMD_GET_PROTOCOL_FEATURES);
8247 goto nla_put_failure;
8249 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8250 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8251 goto nla_put_failure;
8253 genlmsg_end(msg, hdr);
8254 return genlmsg_reply(msg, info);
8261 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8264 struct cfg80211_update_ft_ies_params ft_params;
8265 struct net_device *dev = info->user_ptr[1];
8267 if (!rdev->ops->update_ft_ies)
8270 if (!info->attrs[NL80211_ATTR_MDID] ||
8271 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8274 memset(&ft_params, 0, sizeof(ft_params));
8275 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8276 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8277 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8279 return rdev_update_ft_ies(rdev, dev, &ft_params);
8282 static int nl80211_crit_protocol_start(struct sk_buff *skb,
8283 struct genl_info *info)
8285 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8286 struct wireless_dev *wdev = info->user_ptr[1];
8287 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8291 if (!rdev->ops->crit_proto_start)
8294 if (WARN_ON(!rdev->ops->crit_proto_stop))
8297 if (rdev->crit_proto_nlportid)
8300 /* determine protocol if provided */
8301 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8302 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8304 if (proto >= NUM_NL80211_CRIT_PROTO)
8307 /* timeout must be provided */
8308 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8312 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8314 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8317 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8319 rdev->crit_proto_nlportid = info->snd_portid;
8324 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8325 struct genl_info *info)
8327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8328 struct wireless_dev *wdev = info->user_ptr[1];
8330 if (!rdev->ops->crit_proto_stop)
8333 if (rdev->crit_proto_nlportid) {
8334 rdev->crit_proto_nlportid = 0;
8335 rdev_crit_proto_stop(rdev, wdev);
8340 #define NL80211_FLAG_NEED_WIPHY 0x01
8341 #define NL80211_FLAG_NEED_NETDEV 0x02
8342 #define NL80211_FLAG_NEED_RTNL 0x04
8343 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8344 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8345 NL80211_FLAG_CHECK_NETDEV_UP)
8346 #define NL80211_FLAG_NEED_WDEV 0x10
8347 /* If a netdev is associated, it must be UP, P2P must be started */
8348 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8349 NL80211_FLAG_CHECK_NETDEV_UP)
8351 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8352 struct genl_info *info)
8354 struct cfg80211_registered_device *rdev;
8355 struct wireless_dev *wdev;
8356 struct net_device *dev;
8357 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8362 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
8363 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
8367 return PTR_ERR(rdev);
8369 info->user_ptr[0] = rdev;
8370 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8371 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8374 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8379 return PTR_ERR(wdev);
8383 rdev = wiphy_to_dev(wdev->wiphy);
8385 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8392 info->user_ptr[1] = dev;
8394 info->user_ptr[1] = wdev;
8398 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8399 !netif_running(dev)) {
8406 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8407 if (!wdev->p2p_started) {
8414 info->user_ptr[0] = rdev;
8420 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8421 struct genl_info *info)
8423 if (info->user_ptr[1]) {
8424 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8425 struct wireless_dev *wdev = info->user_ptr[1];
8428 dev_put(wdev->netdev);
8430 dev_put(info->user_ptr[1]);
8433 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8437 static struct genl_ops nl80211_ops[] = {
8439 .cmd = NL80211_CMD_GET_WIPHY,
8440 .doit = nl80211_get_wiphy,
8441 .dumpit = nl80211_dump_wiphy,
8442 .done = nl80211_dump_wiphy_done,
8443 .policy = nl80211_policy,
8444 /* can be retrieved by unprivileged users */
8445 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8446 NL80211_FLAG_NEED_RTNL,
8449 .cmd = NL80211_CMD_SET_WIPHY,
8450 .doit = nl80211_set_wiphy,
8451 .policy = nl80211_policy,
8452 .flags = GENL_ADMIN_PERM,
8453 .internal_flags = NL80211_FLAG_NEED_RTNL,
8456 .cmd = NL80211_CMD_GET_INTERFACE,
8457 .doit = nl80211_get_interface,
8458 .dumpit = nl80211_dump_interface,
8459 .policy = nl80211_policy,
8460 /* can be retrieved by unprivileged users */
8461 .internal_flags = NL80211_FLAG_NEED_WDEV |
8462 NL80211_FLAG_NEED_RTNL,
8465 .cmd = NL80211_CMD_SET_INTERFACE,
8466 .doit = nl80211_set_interface,
8467 .policy = nl80211_policy,
8468 .flags = GENL_ADMIN_PERM,
8469 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8470 NL80211_FLAG_NEED_RTNL,
8473 .cmd = NL80211_CMD_NEW_INTERFACE,
8474 .doit = nl80211_new_interface,
8475 .policy = nl80211_policy,
8476 .flags = GENL_ADMIN_PERM,
8477 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8478 NL80211_FLAG_NEED_RTNL,
8481 .cmd = NL80211_CMD_DEL_INTERFACE,
8482 .doit = nl80211_del_interface,
8483 .policy = nl80211_policy,
8484 .flags = GENL_ADMIN_PERM,
8485 .internal_flags = NL80211_FLAG_NEED_WDEV |
8486 NL80211_FLAG_NEED_RTNL,
8489 .cmd = NL80211_CMD_GET_KEY,
8490 .doit = nl80211_get_key,
8491 .policy = nl80211_policy,
8492 .flags = GENL_ADMIN_PERM,
8493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8494 NL80211_FLAG_NEED_RTNL,
8497 .cmd = NL80211_CMD_SET_KEY,
8498 .doit = nl80211_set_key,
8499 .policy = nl80211_policy,
8500 .flags = GENL_ADMIN_PERM,
8501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8502 NL80211_FLAG_NEED_RTNL,
8505 .cmd = NL80211_CMD_NEW_KEY,
8506 .doit = nl80211_new_key,
8507 .policy = nl80211_policy,
8508 .flags = GENL_ADMIN_PERM,
8509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8510 NL80211_FLAG_NEED_RTNL,
8513 .cmd = NL80211_CMD_DEL_KEY,
8514 .doit = nl80211_del_key,
8515 .policy = nl80211_policy,
8516 .flags = GENL_ADMIN_PERM,
8517 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8518 NL80211_FLAG_NEED_RTNL,
8521 .cmd = NL80211_CMD_SET_BEACON,
8522 .policy = nl80211_policy,
8523 .flags = GENL_ADMIN_PERM,
8524 .doit = nl80211_set_beacon,
8525 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8526 NL80211_FLAG_NEED_RTNL,
8529 .cmd = NL80211_CMD_START_AP,
8530 .policy = nl80211_policy,
8531 .flags = GENL_ADMIN_PERM,
8532 .doit = nl80211_start_ap,
8533 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8534 NL80211_FLAG_NEED_RTNL,
8537 .cmd = NL80211_CMD_STOP_AP,
8538 .policy = nl80211_policy,
8539 .flags = GENL_ADMIN_PERM,
8540 .doit = nl80211_stop_ap,
8541 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8542 NL80211_FLAG_NEED_RTNL,
8545 .cmd = NL80211_CMD_GET_STATION,
8546 .doit = nl80211_get_station,
8547 .dumpit = nl80211_dump_station,
8548 .policy = nl80211_policy,
8549 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8550 NL80211_FLAG_NEED_RTNL,
8553 .cmd = NL80211_CMD_SET_STATION,
8554 .doit = nl80211_set_station,
8555 .policy = nl80211_policy,
8556 .flags = GENL_ADMIN_PERM,
8557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8558 NL80211_FLAG_NEED_RTNL,
8561 .cmd = NL80211_CMD_NEW_STATION,
8562 .doit = nl80211_new_station,
8563 .policy = nl80211_policy,
8564 .flags = GENL_ADMIN_PERM,
8565 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8566 NL80211_FLAG_NEED_RTNL,
8569 .cmd = NL80211_CMD_DEL_STATION,
8570 .doit = nl80211_del_station,
8571 .policy = nl80211_policy,
8572 .flags = GENL_ADMIN_PERM,
8573 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8574 NL80211_FLAG_NEED_RTNL,
8577 .cmd = NL80211_CMD_GET_MPATH,
8578 .doit = nl80211_get_mpath,
8579 .dumpit = nl80211_dump_mpath,
8580 .policy = nl80211_policy,
8581 .flags = GENL_ADMIN_PERM,
8582 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8583 NL80211_FLAG_NEED_RTNL,
8586 .cmd = NL80211_CMD_SET_MPATH,
8587 .doit = nl80211_set_mpath,
8588 .policy = nl80211_policy,
8589 .flags = GENL_ADMIN_PERM,
8590 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8591 NL80211_FLAG_NEED_RTNL,
8594 .cmd = NL80211_CMD_NEW_MPATH,
8595 .doit = nl80211_new_mpath,
8596 .policy = nl80211_policy,
8597 .flags = GENL_ADMIN_PERM,
8598 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8599 NL80211_FLAG_NEED_RTNL,
8602 .cmd = NL80211_CMD_DEL_MPATH,
8603 .doit = nl80211_del_mpath,
8604 .policy = nl80211_policy,
8605 .flags = GENL_ADMIN_PERM,
8606 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8607 NL80211_FLAG_NEED_RTNL,
8610 .cmd = NL80211_CMD_SET_BSS,
8611 .doit = nl80211_set_bss,
8612 .policy = nl80211_policy,
8613 .flags = GENL_ADMIN_PERM,
8614 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8615 NL80211_FLAG_NEED_RTNL,
8618 .cmd = NL80211_CMD_GET_REG,
8619 .doit = nl80211_get_reg,
8620 .policy = nl80211_policy,
8621 .internal_flags = NL80211_FLAG_NEED_RTNL,
8622 /* can be retrieved by unprivileged users */
8625 .cmd = NL80211_CMD_SET_REG,
8626 .doit = nl80211_set_reg,
8627 .policy = nl80211_policy,
8628 .flags = GENL_ADMIN_PERM,
8629 .internal_flags = NL80211_FLAG_NEED_RTNL,
8632 .cmd = NL80211_CMD_REQ_SET_REG,
8633 .doit = nl80211_req_set_reg,
8634 .policy = nl80211_policy,
8635 .flags = GENL_ADMIN_PERM,
8638 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8639 .doit = nl80211_get_mesh_config,
8640 .policy = nl80211_policy,
8641 /* can be retrieved by unprivileged users */
8642 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8643 NL80211_FLAG_NEED_RTNL,
8646 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8647 .doit = nl80211_update_mesh_config,
8648 .policy = nl80211_policy,
8649 .flags = GENL_ADMIN_PERM,
8650 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8651 NL80211_FLAG_NEED_RTNL,
8654 .cmd = NL80211_CMD_TRIGGER_SCAN,
8655 .doit = nl80211_trigger_scan,
8656 .policy = nl80211_policy,
8657 .flags = GENL_ADMIN_PERM,
8658 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8659 NL80211_FLAG_NEED_RTNL,
8662 .cmd = NL80211_CMD_GET_SCAN,
8663 .policy = nl80211_policy,
8664 .dumpit = nl80211_dump_scan,
8667 .cmd = NL80211_CMD_START_SCHED_SCAN,
8668 .doit = nl80211_start_sched_scan,
8669 .policy = nl80211_policy,
8670 .flags = GENL_ADMIN_PERM,
8671 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8672 NL80211_FLAG_NEED_RTNL,
8675 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8676 .doit = nl80211_stop_sched_scan,
8677 .policy = nl80211_policy,
8678 .flags = GENL_ADMIN_PERM,
8679 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8680 NL80211_FLAG_NEED_RTNL,
8683 .cmd = NL80211_CMD_AUTHENTICATE,
8684 .doit = nl80211_authenticate,
8685 .policy = nl80211_policy,
8686 .flags = GENL_ADMIN_PERM,
8687 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8688 NL80211_FLAG_NEED_RTNL,
8691 .cmd = NL80211_CMD_ASSOCIATE,
8692 .doit = nl80211_associate,
8693 .policy = nl80211_policy,
8694 .flags = GENL_ADMIN_PERM,
8695 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8696 NL80211_FLAG_NEED_RTNL,
8699 .cmd = NL80211_CMD_DEAUTHENTICATE,
8700 .doit = nl80211_deauthenticate,
8701 .policy = nl80211_policy,
8702 .flags = GENL_ADMIN_PERM,
8703 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8704 NL80211_FLAG_NEED_RTNL,
8707 .cmd = NL80211_CMD_DISASSOCIATE,
8708 .doit = nl80211_disassociate,
8709 .policy = nl80211_policy,
8710 .flags = GENL_ADMIN_PERM,
8711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8712 NL80211_FLAG_NEED_RTNL,
8715 .cmd = NL80211_CMD_JOIN_IBSS,
8716 .doit = nl80211_join_ibss,
8717 .policy = nl80211_policy,
8718 .flags = GENL_ADMIN_PERM,
8719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8720 NL80211_FLAG_NEED_RTNL,
8723 .cmd = NL80211_CMD_LEAVE_IBSS,
8724 .doit = nl80211_leave_ibss,
8725 .policy = nl80211_policy,
8726 .flags = GENL_ADMIN_PERM,
8727 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8728 NL80211_FLAG_NEED_RTNL,
8730 #ifdef CONFIG_NL80211_TESTMODE
8732 .cmd = NL80211_CMD_TESTMODE,
8733 .doit = nl80211_testmode_do,
8734 .dumpit = nl80211_testmode_dump,
8735 .policy = nl80211_policy,
8736 .flags = GENL_ADMIN_PERM,
8737 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8738 NL80211_FLAG_NEED_RTNL,
8742 .cmd = NL80211_CMD_CONNECT,
8743 .doit = nl80211_connect,
8744 .policy = nl80211_policy,
8745 .flags = GENL_ADMIN_PERM,
8746 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8747 NL80211_FLAG_NEED_RTNL,
8750 .cmd = NL80211_CMD_DISCONNECT,
8751 .doit = nl80211_disconnect,
8752 .policy = nl80211_policy,
8753 .flags = GENL_ADMIN_PERM,
8754 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8755 NL80211_FLAG_NEED_RTNL,
8758 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8759 .doit = nl80211_wiphy_netns,
8760 .policy = nl80211_policy,
8761 .flags = GENL_ADMIN_PERM,
8762 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8763 NL80211_FLAG_NEED_RTNL,
8766 .cmd = NL80211_CMD_GET_SURVEY,
8767 .policy = nl80211_policy,
8768 .dumpit = nl80211_dump_survey,
8771 .cmd = NL80211_CMD_SET_PMKSA,
8772 .doit = nl80211_setdel_pmksa,
8773 .policy = nl80211_policy,
8774 .flags = GENL_ADMIN_PERM,
8775 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8776 NL80211_FLAG_NEED_RTNL,
8779 .cmd = NL80211_CMD_DEL_PMKSA,
8780 .doit = nl80211_setdel_pmksa,
8781 .policy = nl80211_policy,
8782 .flags = GENL_ADMIN_PERM,
8783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8784 NL80211_FLAG_NEED_RTNL,
8787 .cmd = NL80211_CMD_FLUSH_PMKSA,
8788 .doit = nl80211_flush_pmksa,
8789 .policy = nl80211_policy,
8790 .flags = GENL_ADMIN_PERM,
8791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8792 NL80211_FLAG_NEED_RTNL,
8795 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8796 .doit = nl80211_remain_on_channel,
8797 .policy = nl80211_policy,
8798 .flags = GENL_ADMIN_PERM,
8799 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8800 NL80211_FLAG_NEED_RTNL,
8803 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8804 .doit = nl80211_cancel_remain_on_channel,
8805 .policy = nl80211_policy,
8806 .flags = GENL_ADMIN_PERM,
8807 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8808 NL80211_FLAG_NEED_RTNL,
8811 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8812 .doit = nl80211_set_tx_bitrate_mask,
8813 .policy = nl80211_policy,
8814 .flags = GENL_ADMIN_PERM,
8815 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8816 NL80211_FLAG_NEED_RTNL,
8819 .cmd = NL80211_CMD_REGISTER_FRAME,
8820 .doit = nl80211_register_mgmt,
8821 .policy = nl80211_policy,
8822 .flags = GENL_ADMIN_PERM,
8823 .internal_flags = NL80211_FLAG_NEED_WDEV |
8824 NL80211_FLAG_NEED_RTNL,
8827 .cmd = NL80211_CMD_FRAME,
8828 .doit = nl80211_tx_mgmt,
8829 .policy = nl80211_policy,
8830 .flags = GENL_ADMIN_PERM,
8831 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8832 NL80211_FLAG_NEED_RTNL,
8835 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8836 .doit = nl80211_tx_mgmt_cancel_wait,
8837 .policy = nl80211_policy,
8838 .flags = GENL_ADMIN_PERM,
8839 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8840 NL80211_FLAG_NEED_RTNL,
8843 .cmd = NL80211_CMD_SET_POWER_SAVE,
8844 .doit = nl80211_set_power_save,
8845 .policy = nl80211_policy,
8846 .flags = GENL_ADMIN_PERM,
8847 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8848 NL80211_FLAG_NEED_RTNL,
8851 .cmd = NL80211_CMD_GET_POWER_SAVE,
8852 .doit = nl80211_get_power_save,
8853 .policy = nl80211_policy,
8854 /* can be retrieved by unprivileged users */
8855 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8856 NL80211_FLAG_NEED_RTNL,
8859 .cmd = NL80211_CMD_SET_CQM,
8860 .doit = nl80211_set_cqm,
8861 .policy = nl80211_policy,
8862 .flags = GENL_ADMIN_PERM,
8863 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8864 NL80211_FLAG_NEED_RTNL,
8867 .cmd = NL80211_CMD_SET_CHANNEL,
8868 .doit = nl80211_set_channel,
8869 .policy = nl80211_policy,
8870 .flags = GENL_ADMIN_PERM,
8871 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8872 NL80211_FLAG_NEED_RTNL,
8875 .cmd = NL80211_CMD_SET_WDS_PEER,
8876 .doit = nl80211_set_wds_peer,
8877 .policy = nl80211_policy,
8878 .flags = GENL_ADMIN_PERM,
8879 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8880 NL80211_FLAG_NEED_RTNL,
8883 .cmd = NL80211_CMD_JOIN_MESH,
8884 .doit = nl80211_join_mesh,
8885 .policy = nl80211_policy,
8886 .flags = GENL_ADMIN_PERM,
8887 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8888 NL80211_FLAG_NEED_RTNL,
8891 .cmd = NL80211_CMD_LEAVE_MESH,
8892 .doit = nl80211_leave_mesh,
8893 .policy = nl80211_policy,
8894 .flags = GENL_ADMIN_PERM,
8895 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8896 NL80211_FLAG_NEED_RTNL,
8900 .cmd = NL80211_CMD_GET_WOWLAN,
8901 .doit = nl80211_get_wowlan,
8902 .policy = nl80211_policy,
8903 /* can be retrieved by unprivileged users */
8904 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8905 NL80211_FLAG_NEED_RTNL,
8908 .cmd = NL80211_CMD_SET_WOWLAN,
8909 .doit = nl80211_set_wowlan,
8910 .policy = nl80211_policy,
8911 .flags = GENL_ADMIN_PERM,
8912 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8913 NL80211_FLAG_NEED_RTNL,
8917 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8918 .doit = nl80211_set_rekey_data,
8919 .policy = nl80211_policy,
8920 .flags = GENL_ADMIN_PERM,
8921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8922 NL80211_FLAG_NEED_RTNL,
8925 .cmd = NL80211_CMD_TDLS_MGMT,
8926 .doit = nl80211_tdls_mgmt,
8927 .policy = nl80211_policy,
8928 .flags = GENL_ADMIN_PERM,
8929 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8930 NL80211_FLAG_NEED_RTNL,
8933 .cmd = NL80211_CMD_TDLS_OPER,
8934 .doit = nl80211_tdls_oper,
8935 .policy = nl80211_policy,
8936 .flags = GENL_ADMIN_PERM,
8937 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8938 NL80211_FLAG_NEED_RTNL,
8941 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8942 .doit = nl80211_register_unexpected_frame,
8943 .policy = nl80211_policy,
8944 .flags = GENL_ADMIN_PERM,
8945 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8946 NL80211_FLAG_NEED_RTNL,
8949 .cmd = NL80211_CMD_PROBE_CLIENT,
8950 .doit = nl80211_probe_client,
8951 .policy = nl80211_policy,
8952 .flags = GENL_ADMIN_PERM,
8953 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8954 NL80211_FLAG_NEED_RTNL,
8957 .cmd = NL80211_CMD_REGISTER_BEACONS,
8958 .doit = nl80211_register_beacons,
8959 .policy = nl80211_policy,
8960 .flags = GENL_ADMIN_PERM,
8961 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8962 NL80211_FLAG_NEED_RTNL,
8965 .cmd = NL80211_CMD_SET_NOACK_MAP,
8966 .doit = nl80211_set_noack_map,
8967 .policy = nl80211_policy,
8968 .flags = GENL_ADMIN_PERM,
8969 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8970 NL80211_FLAG_NEED_RTNL,
8973 .cmd = NL80211_CMD_START_P2P_DEVICE,
8974 .doit = nl80211_start_p2p_device,
8975 .policy = nl80211_policy,
8976 .flags = GENL_ADMIN_PERM,
8977 .internal_flags = NL80211_FLAG_NEED_WDEV |
8978 NL80211_FLAG_NEED_RTNL,
8981 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8982 .doit = nl80211_stop_p2p_device,
8983 .policy = nl80211_policy,
8984 .flags = GENL_ADMIN_PERM,
8985 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8986 NL80211_FLAG_NEED_RTNL,
8989 .cmd = NL80211_CMD_SET_MCAST_RATE,
8990 .doit = nl80211_set_mcast_rate,
8991 .policy = nl80211_policy,
8992 .flags = GENL_ADMIN_PERM,
8993 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8994 NL80211_FLAG_NEED_RTNL,
8997 .cmd = NL80211_CMD_SET_MAC_ACL,
8998 .doit = nl80211_set_mac_acl,
8999 .policy = nl80211_policy,
9000 .flags = GENL_ADMIN_PERM,
9001 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9002 NL80211_FLAG_NEED_RTNL,
9005 .cmd = NL80211_CMD_RADAR_DETECT,
9006 .doit = nl80211_start_radar_detection,
9007 .policy = nl80211_policy,
9008 .flags = GENL_ADMIN_PERM,
9009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9010 NL80211_FLAG_NEED_RTNL,
9013 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9014 .doit = nl80211_get_protocol_features,
9015 .policy = nl80211_policy,
9018 .cmd = NL80211_CMD_UPDATE_FT_IES,
9019 .doit = nl80211_update_ft_ies,
9020 .policy = nl80211_policy,
9021 .flags = GENL_ADMIN_PERM,
9022 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9023 NL80211_FLAG_NEED_RTNL,
9026 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9027 .doit = nl80211_crit_protocol_start,
9028 .policy = nl80211_policy,
9029 .flags = GENL_ADMIN_PERM,
9030 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9031 NL80211_FLAG_NEED_RTNL,
9034 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9035 .doit = nl80211_crit_protocol_stop,
9036 .policy = nl80211_policy,
9037 .flags = GENL_ADMIN_PERM,
9038 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9039 NL80211_FLAG_NEED_RTNL,
9043 static struct genl_multicast_group nl80211_mlme_mcgrp = {
9047 /* multicast groups */
9048 static struct genl_multicast_group nl80211_config_mcgrp = {
9051 static struct genl_multicast_group nl80211_scan_mcgrp = {
9054 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9055 .name = "regulatory",
9058 /* notification functions */
9060 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9062 struct sk_buff *msg;
9063 struct nl80211_dump_wiphy_state state = {};
9065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9069 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
9074 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9075 nl80211_config_mcgrp.id, GFP_KERNEL);
9078 static int nl80211_add_scan_req(struct sk_buff *msg,
9079 struct cfg80211_registered_device *rdev)
9081 struct cfg80211_scan_request *req = rdev->scan_req;
9082 struct nlattr *nest;
9088 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9090 goto nla_put_failure;
9091 for (i = 0; i < req->n_ssids; i++) {
9092 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9093 goto nla_put_failure;
9095 nla_nest_end(msg, nest);
9097 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9099 goto nla_put_failure;
9100 for (i = 0; i < req->n_channels; i++) {
9101 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9102 goto nla_put_failure;
9104 nla_nest_end(msg, nest);
9107 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9108 goto nla_put_failure;
9111 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9118 static int nl80211_send_scan_msg(struct sk_buff *msg,
9119 struct cfg80211_registered_device *rdev,
9120 struct wireless_dev *wdev,
9121 u32 portid, u32 seq, int flags,
9126 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9130 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9131 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9132 wdev->netdev->ifindex)) ||
9133 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9134 goto nla_put_failure;
9136 /* ignore errors and send incomplete event anyway */
9137 nl80211_add_scan_req(msg, rdev);
9139 return genlmsg_end(msg, hdr);
9142 genlmsg_cancel(msg, hdr);
9147 nl80211_send_sched_scan_msg(struct sk_buff *msg,
9148 struct cfg80211_registered_device *rdev,
9149 struct net_device *netdev,
9150 u32 portid, u32 seq, int flags, u32 cmd)
9154 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9158 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9159 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9160 goto nla_put_failure;
9162 return genlmsg_end(msg, hdr);
9165 genlmsg_cancel(msg, hdr);
9169 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
9170 struct wireless_dev *wdev)
9172 struct sk_buff *msg;
9174 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9178 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9179 NL80211_CMD_TRIGGER_SCAN) < 0) {
9184 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9185 nl80211_scan_mcgrp.id, GFP_KERNEL);
9188 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
9189 struct wireless_dev *wdev)
9191 struct sk_buff *msg;
9193 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9197 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9198 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
9203 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9204 nl80211_scan_mcgrp.id, GFP_KERNEL);
9207 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
9208 struct wireless_dev *wdev)
9210 struct sk_buff *msg;
9212 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9216 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9217 NL80211_CMD_SCAN_ABORTED) < 0) {
9222 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9223 nl80211_scan_mcgrp.id, GFP_KERNEL);
9226 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9227 struct net_device *netdev)
9229 struct sk_buff *msg;
9231 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9235 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9236 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9241 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9242 nl80211_scan_mcgrp.id, GFP_KERNEL);
9245 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9246 struct net_device *netdev, u32 cmd)
9248 struct sk_buff *msg;
9250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9254 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9259 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9260 nl80211_scan_mcgrp.id, GFP_KERNEL);
9264 * This can happen on global regulatory changes or device specific settings
9265 * based on custom world regulatory domains.
9267 void nl80211_send_reg_change_event(struct regulatory_request *request)
9269 struct sk_buff *msg;
9272 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9276 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9282 /* Userspace can always count this one always being set */
9283 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9284 goto nla_put_failure;
9286 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9287 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9288 NL80211_REGDOM_TYPE_WORLD))
9289 goto nla_put_failure;
9290 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9291 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9292 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9293 goto nla_put_failure;
9294 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9295 request->intersect) {
9296 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9297 NL80211_REGDOM_TYPE_INTERSECTION))
9298 goto nla_put_failure;
9300 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9301 NL80211_REGDOM_TYPE_COUNTRY) ||
9302 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9304 goto nla_put_failure;
9307 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9308 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9309 goto nla_put_failure;
9311 genlmsg_end(msg, hdr);
9314 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9321 genlmsg_cancel(msg, hdr);
9325 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9326 struct net_device *netdev,
9327 const u8 *buf, size_t len,
9328 enum nl80211_commands cmd, gfp_t gfp)
9330 struct sk_buff *msg;
9333 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9337 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9343 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9344 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9345 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9346 goto nla_put_failure;
9348 genlmsg_end(msg, hdr);
9350 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9351 nl80211_mlme_mcgrp.id, gfp);
9355 genlmsg_cancel(msg, hdr);
9359 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
9360 struct net_device *netdev, const u8 *buf,
9361 size_t len, gfp_t gfp)
9363 nl80211_send_mlme_event(rdev, netdev, buf, len,
9364 NL80211_CMD_AUTHENTICATE, gfp);
9367 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9368 struct net_device *netdev, const u8 *buf,
9369 size_t len, gfp_t gfp)
9371 nl80211_send_mlme_event(rdev, netdev, buf, len,
9372 NL80211_CMD_ASSOCIATE, gfp);
9375 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
9376 struct net_device *netdev, const u8 *buf,
9377 size_t len, gfp_t gfp)
9379 nl80211_send_mlme_event(rdev, netdev, buf, len,
9380 NL80211_CMD_DEAUTHENTICATE, gfp);
9383 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9384 struct net_device *netdev, const u8 *buf,
9385 size_t len, gfp_t gfp)
9387 nl80211_send_mlme_event(rdev, netdev, buf, len,
9388 NL80211_CMD_DISASSOCIATE, gfp);
9391 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9394 struct wireless_dev *wdev = dev->ieee80211_ptr;
9395 struct wiphy *wiphy = wdev->wiphy;
9396 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9397 const struct ieee80211_mgmt *mgmt = (void *)buf;
9400 if (WARN_ON(len < 2))
9403 if (ieee80211_is_deauth(mgmt->frame_control))
9404 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9406 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
9408 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9409 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
9411 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
9413 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9414 struct net_device *netdev, int cmd,
9415 const u8 *addr, gfp_t gfp)
9417 struct sk_buff *msg;
9420 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9424 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9430 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9431 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9432 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9433 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9434 goto nla_put_failure;
9436 genlmsg_end(msg, hdr);
9438 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9439 nl80211_mlme_mcgrp.id, gfp);
9443 genlmsg_cancel(msg, hdr);
9447 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
9448 struct net_device *netdev, const u8 *addr,
9451 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
9455 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
9456 struct net_device *netdev, const u8 *addr,
9459 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9463 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9464 struct net_device *netdev, const u8 *bssid,
9465 const u8 *req_ie, size_t req_ie_len,
9466 const u8 *resp_ie, size_t resp_ie_len,
9467 u16 status, gfp_t gfp)
9469 struct sk_buff *msg;
9472 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9476 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9482 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9483 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9484 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9485 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9487 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9489 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9490 goto nla_put_failure;
9492 genlmsg_end(msg, hdr);
9494 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9495 nl80211_mlme_mcgrp.id, gfp);
9499 genlmsg_cancel(msg, hdr);
9504 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9505 struct net_device *netdev, const u8 *bssid,
9506 const u8 *req_ie, size_t req_ie_len,
9507 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9509 struct sk_buff *msg;
9512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9516 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9522 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9523 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9524 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9526 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9528 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9529 goto nla_put_failure;
9531 genlmsg_end(msg, hdr);
9533 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9534 nl80211_mlme_mcgrp.id, gfp);
9538 genlmsg_cancel(msg, hdr);
9543 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9544 struct net_device *netdev, u16 reason,
9545 const u8 *ie, size_t ie_len, bool from_ap)
9547 struct sk_buff *msg;
9550 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9554 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9560 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9561 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9562 (from_ap && reason &&
9563 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9565 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9566 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9567 goto nla_put_failure;
9569 genlmsg_end(msg, hdr);
9571 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9572 nl80211_mlme_mcgrp.id, GFP_KERNEL);
9576 genlmsg_cancel(msg, hdr);
9581 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9582 struct net_device *netdev, const u8 *bssid,
9585 struct sk_buff *msg;
9588 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9592 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9598 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9599 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9600 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9601 goto nla_put_failure;
9603 genlmsg_end(msg, hdr);
9605 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9606 nl80211_mlme_mcgrp.id, gfp);
9610 genlmsg_cancel(msg, hdr);
9614 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9615 const u8* ie, u8 ie_len, gfp_t gfp)
9617 struct wireless_dev *wdev = dev->ieee80211_ptr;
9618 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9619 struct sk_buff *msg;
9622 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9625 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9627 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9631 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9637 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9638 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9639 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9641 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9642 goto nla_put_failure;
9644 genlmsg_end(msg, hdr);
9646 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9647 nl80211_mlme_mcgrp.id, gfp);
9651 genlmsg_cancel(msg, hdr);
9654 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
9656 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9657 struct net_device *netdev, const u8 *addr,
9658 enum nl80211_key_type key_type, int key_id,
9659 const u8 *tsc, gfp_t gfp)
9661 struct sk_buff *msg;
9664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9668 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9674 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9675 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9676 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9677 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9679 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9680 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9681 goto nla_put_failure;
9683 genlmsg_end(msg, hdr);
9685 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9686 nl80211_mlme_mcgrp.id, gfp);
9690 genlmsg_cancel(msg, hdr);
9694 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9695 struct ieee80211_channel *channel_before,
9696 struct ieee80211_channel *channel_after)
9698 struct sk_buff *msg;
9700 struct nlattr *nl_freq;
9702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9706 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9713 * Since we are applying the beacon hint to a wiphy we know its
9714 * wiphy_idx is valid
9716 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9717 goto nla_put_failure;
9720 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9722 goto nla_put_failure;
9723 if (nl80211_msg_put_channel(msg, channel_before, false))
9724 goto nla_put_failure;
9725 nla_nest_end(msg, nl_freq);
9728 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9730 goto nla_put_failure;
9731 if (nl80211_msg_put_channel(msg, channel_after, false))
9732 goto nla_put_failure;
9733 nla_nest_end(msg, nl_freq);
9735 genlmsg_end(msg, hdr);
9738 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9745 genlmsg_cancel(msg, hdr);
9749 static void nl80211_send_remain_on_chan_event(
9750 int cmd, struct cfg80211_registered_device *rdev,
9751 struct wireless_dev *wdev, u64 cookie,
9752 struct ieee80211_channel *chan,
9753 unsigned int duration, gfp_t gfp)
9755 struct sk_buff *msg;
9758 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9762 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9768 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9769 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9770 wdev->netdev->ifindex)) ||
9771 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9772 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9773 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9774 NL80211_CHAN_NO_HT) ||
9775 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9776 goto nla_put_failure;
9778 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9779 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9780 goto nla_put_failure;
9782 genlmsg_end(msg, hdr);
9784 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9785 nl80211_mlme_mcgrp.id, gfp);
9789 genlmsg_cancel(msg, hdr);
9793 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9794 struct ieee80211_channel *chan,
9795 unsigned int duration, gfp_t gfp)
9797 struct wiphy *wiphy = wdev->wiphy;
9798 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9800 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9801 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9802 rdev, wdev, cookie, chan,
9805 EXPORT_SYMBOL(cfg80211_ready_on_channel);
9807 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9808 struct ieee80211_channel *chan,
9811 struct wiphy *wiphy = wdev->wiphy;
9812 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9814 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9815 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9816 rdev, wdev, cookie, chan, 0, gfp);
9818 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9820 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9821 struct station_info *sinfo, gfp_t gfp)
9823 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9824 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9825 struct sk_buff *msg;
9827 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9833 if (nl80211_send_station(msg, 0, 0, 0,
9834 rdev, dev, mac_addr, sinfo) < 0) {
9839 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9840 nl80211_mlme_mcgrp.id, gfp);
9842 EXPORT_SYMBOL(cfg80211_new_sta);
9844 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
9846 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9847 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9848 struct sk_buff *msg;
9851 trace_cfg80211_del_sta(dev, mac_addr);
9853 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9863 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9864 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9865 goto nla_put_failure;
9867 genlmsg_end(msg, hdr);
9869 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9870 nl80211_mlme_mcgrp.id, gfp);
9874 genlmsg_cancel(msg, hdr);
9877 EXPORT_SYMBOL(cfg80211_del_sta);
9879 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9880 enum nl80211_connect_failed_reason reason,
9883 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9884 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9885 struct sk_buff *msg;
9888 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9892 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9898 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9899 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9900 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9901 goto nla_put_failure;
9903 genlmsg_end(msg, hdr);
9905 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9906 nl80211_mlme_mcgrp.id, gfp);
9910 genlmsg_cancel(msg, hdr);
9913 EXPORT_SYMBOL(cfg80211_conn_failed);
9915 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9916 const u8 *addr, gfp_t gfp)
9918 struct wireless_dev *wdev = dev->ieee80211_ptr;
9919 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9920 struct sk_buff *msg;
9922 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9927 msg = nlmsg_new(100, gfp);
9931 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9937 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9938 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9939 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9940 goto nla_put_failure;
9942 genlmsg_end(msg, hdr);
9943 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9947 genlmsg_cancel(msg, hdr);
9952 bool cfg80211_rx_spurious_frame(struct net_device *dev,
9953 const u8 *addr, gfp_t gfp)
9955 struct wireless_dev *wdev = dev->ieee80211_ptr;
9958 trace_cfg80211_rx_spurious_frame(dev, addr);
9960 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9961 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9962 trace_cfg80211_return_bool(false);
9965 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9967 trace_cfg80211_return_bool(ret);
9970 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
9972 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9973 const u8 *addr, gfp_t gfp)
9975 struct wireless_dev *wdev = dev->ieee80211_ptr;
9978 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9980 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9981 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9982 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9983 trace_cfg80211_return_bool(false);
9986 ret = __nl80211_unexpected_frame(dev,
9987 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9989 trace_cfg80211_return_bool(ret);
9992 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
9994 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9995 struct wireless_dev *wdev, u32 nlportid,
9996 int freq, int sig_dbm,
9997 const u8 *buf, size_t len, gfp_t gfp)
9999 struct net_device *netdev = wdev->netdev;
10000 struct sk_buff *msg;
10003 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10007 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10013 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10014 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10015 netdev->ifindex)) ||
10016 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10017 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10019 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10020 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10021 goto nla_put_failure;
10023 genlmsg_end(msg, hdr);
10025 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10028 genlmsg_cancel(msg, hdr);
10033 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10034 const u8 *buf, size_t len, bool ack, gfp_t gfp)
10036 struct wiphy *wiphy = wdev->wiphy;
10037 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10038 struct net_device *netdev = wdev->netdev;
10039 struct sk_buff *msg;
10042 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10044 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10048 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10054 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10055 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10056 netdev->ifindex)) ||
10057 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10058 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10059 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10060 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10061 goto nla_put_failure;
10063 genlmsg_end(msg, hdr);
10065 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10069 genlmsg_cancel(msg, hdr);
10072 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
10074 void cfg80211_cqm_rssi_notify(struct net_device *dev,
10075 enum nl80211_cqm_rssi_threshold_event rssi_event,
10078 struct wireless_dev *wdev = dev->ieee80211_ptr;
10079 struct wiphy *wiphy = wdev->wiphy;
10080 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10081 struct sk_buff *msg;
10082 struct nlattr *pinfoattr;
10085 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10087 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10091 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10097 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10098 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
10099 goto nla_put_failure;
10101 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10103 goto nla_put_failure;
10105 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10107 goto nla_put_failure;
10109 nla_nest_end(msg, pinfoattr);
10111 genlmsg_end(msg, hdr);
10113 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10114 nl80211_mlme_mcgrp.id, gfp);
10118 genlmsg_cancel(msg, hdr);
10121 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
10123 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10124 struct net_device *netdev, const u8 *bssid,
10125 const u8 *replay_ctr, gfp_t gfp)
10127 struct sk_buff *msg;
10128 struct nlattr *rekey_attr;
10131 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10135 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10141 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10142 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10143 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10144 goto nla_put_failure;
10146 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10148 goto nla_put_failure;
10150 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10151 NL80211_REPLAY_CTR_LEN, replay_ctr))
10152 goto nla_put_failure;
10154 nla_nest_end(msg, rekey_attr);
10156 genlmsg_end(msg, hdr);
10158 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10159 nl80211_mlme_mcgrp.id, gfp);
10163 genlmsg_cancel(msg, hdr);
10167 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10168 const u8 *replay_ctr, gfp_t gfp)
10170 struct wireless_dev *wdev = dev->ieee80211_ptr;
10171 struct wiphy *wiphy = wdev->wiphy;
10172 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10174 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10175 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10177 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10180 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10181 struct net_device *netdev, int index,
10182 const u8 *bssid, bool preauth, gfp_t gfp)
10184 struct sk_buff *msg;
10185 struct nlattr *attr;
10188 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10192 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10198 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10199 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10200 goto nla_put_failure;
10202 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10204 goto nla_put_failure;
10206 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10207 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10209 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10210 goto nla_put_failure;
10212 nla_nest_end(msg, attr);
10214 genlmsg_end(msg, hdr);
10216 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10217 nl80211_mlme_mcgrp.id, gfp);
10221 genlmsg_cancel(msg, hdr);
10225 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10226 const u8 *bssid, bool preauth, gfp_t gfp)
10228 struct wireless_dev *wdev = dev->ieee80211_ptr;
10229 struct wiphy *wiphy = wdev->wiphy;
10230 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10232 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10233 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10235 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10237 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10238 struct net_device *netdev,
10239 struct cfg80211_chan_def *chandef,
10242 struct sk_buff *msg;
10245 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10249 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10255 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10256 goto nla_put_failure;
10258 if (nl80211_send_chandef(msg, chandef))
10259 goto nla_put_failure;
10261 genlmsg_end(msg, hdr);
10263 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10264 nl80211_mlme_mcgrp.id, gfp);
10268 genlmsg_cancel(msg, hdr);
10272 void cfg80211_ch_switch_notify(struct net_device *dev,
10273 struct cfg80211_chan_def *chandef)
10275 struct wireless_dev *wdev = dev->ieee80211_ptr;
10276 struct wiphy *wiphy = wdev->wiphy;
10277 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10279 trace_cfg80211_ch_switch_notify(dev, chandef);
10283 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10284 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10287 wdev->channel = chandef->chan;
10288 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10293 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10295 void cfg80211_cqm_txe_notify(struct net_device *dev,
10296 const u8 *peer, u32 num_packets,
10297 u32 rate, u32 intvl, gfp_t gfp)
10299 struct wireless_dev *wdev = dev->ieee80211_ptr;
10300 struct wiphy *wiphy = wdev->wiphy;
10301 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10302 struct sk_buff *msg;
10303 struct nlattr *pinfoattr;
10306 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10310 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10316 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10317 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10318 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10319 goto nla_put_failure;
10321 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10323 goto nla_put_failure;
10325 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10326 goto nla_put_failure;
10328 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10329 goto nla_put_failure;
10331 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10332 goto nla_put_failure;
10334 nla_nest_end(msg, pinfoattr);
10336 genlmsg_end(msg, hdr);
10338 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10339 nl80211_mlme_mcgrp.id, gfp);
10343 genlmsg_cancel(msg, hdr);
10346 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
10349 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10350 struct cfg80211_chan_def *chandef,
10351 enum nl80211_radar_event event,
10352 struct net_device *netdev, gfp_t gfp)
10354 struct sk_buff *msg;
10357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10368 goto nla_put_failure;
10370 /* NOP and radar events don't need a netdev parameter */
10372 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10374 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10375 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10376 goto nla_put_failure;
10379 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10380 goto nla_put_failure;
10382 if (nl80211_send_chandef(msg, chandef))
10383 goto nla_put_failure;
10385 genlmsg_end(msg, hdr);
10387 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10388 nl80211_mlme_mcgrp.id, gfp);
10392 genlmsg_cancel(msg, hdr);
10396 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10397 const u8 *peer, u32 num_packets, gfp_t gfp)
10399 struct wireless_dev *wdev = dev->ieee80211_ptr;
10400 struct wiphy *wiphy = wdev->wiphy;
10401 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10402 struct sk_buff *msg;
10403 struct nlattr *pinfoattr;
10406 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10408 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10412 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10418 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10419 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10420 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10421 goto nla_put_failure;
10423 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10425 goto nla_put_failure;
10427 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10428 goto nla_put_failure;
10430 nla_nest_end(msg, pinfoattr);
10432 genlmsg_end(msg, hdr);
10434 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10435 nl80211_mlme_mcgrp.id, gfp);
10439 genlmsg_cancel(msg, hdr);
10442 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
10444 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10445 u64 cookie, bool acked, gfp_t gfp)
10447 struct wireless_dev *wdev = dev->ieee80211_ptr;
10448 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10449 struct sk_buff *msg;
10452 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10459 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10465 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10466 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10467 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10468 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10469 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10470 goto nla_put_failure;
10472 genlmsg_end(msg, hdr);
10474 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10475 nl80211_mlme_mcgrp.id, gfp);
10479 genlmsg_cancel(msg, hdr);
10482 EXPORT_SYMBOL(cfg80211_probe_status);
10484 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10485 const u8 *frame, size_t len,
10486 int freq, int sig_dbm)
10488 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10489 struct sk_buff *msg;
10491 struct cfg80211_beacon_registration *reg;
10493 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10495 spin_lock_bh(&rdev->beacon_registrations_lock);
10496 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10497 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10499 spin_unlock_bh(&rdev->beacon_registrations_lock);
10503 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10505 goto nla_put_failure;
10507 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10509 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10511 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10512 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10513 goto nla_put_failure;
10515 genlmsg_end(msg, hdr);
10517 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10519 spin_unlock_bh(&rdev->beacon_registrations_lock);
10523 spin_unlock_bh(&rdev->beacon_registrations_lock);
10525 genlmsg_cancel(msg, hdr);
10528 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10531 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10532 struct cfg80211_wowlan_wakeup *wakeup,
10535 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10536 struct sk_buff *msg;
10540 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10543 size += wakeup->packet_present_len;
10545 msg = nlmsg_new(size, gfp);
10549 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10553 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10554 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10557 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10558 wdev->netdev->ifindex))
10562 struct nlattr *reasons;
10564 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10566 if (wakeup->disconnect &&
10567 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10569 if (wakeup->magic_pkt &&
10570 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10572 if (wakeup->gtk_rekey_failure &&
10573 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10575 if (wakeup->eap_identity_req &&
10576 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10578 if (wakeup->four_way_handshake &&
10579 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10581 if (wakeup->rfkill_release &&
10582 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10585 if (wakeup->pattern_idx >= 0 &&
10586 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10587 wakeup->pattern_idx))
10590 if (wakeup->tcp_match)
10591 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10593 if (wakeup->tcp_connlost)
10595 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10597 if (wakeup->tcp_nomoretokens)
10599 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10601 if (wakeup->packet) {
10602 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10603 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10605 if (!wakeup->packet_80211) {
10607 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10609 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10612 if (wakeup->packet_len &&
10613 nla_put_u32(msg, len_attr, wakeup->packet_len))
10616 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10621 nla_nest_end(msg, reasons);
10624 genlmsg_end(msg, hdr);
10626 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10627 nl80211_mlme_mcgrp.id, gfp);
10633 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10636 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10637 enum nl80211_tdls_operation oper,
10638 u16 reason_code, gfp_t gfp)
10640 struct wireless_dev *wdev = dev->ieee80211_ptr;
10641 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10642 struct sk_buff *msg;
10645 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10648 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10652 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10658 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10659 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10660 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10661 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10662 (reason_code > 0 &&
10663 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10664 goto nla_put_failure;
10666 genlmsg_end(msg, hdr);
10668 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10669 nl80211_mlme_mcgrp.id, gfp);
10673 genlmsg_cancel(msg, hdr);
10676 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10678 static int nl80211_netlink_notify(struct notifier_block * nb,
10679 unsigned long state,
10682 struct netlink_notify *notify = _notify;
10683 struct cfg80211_registered_device *rdev;
10684 struct wireless_dev *wdev;
10685 struct cfg80211_beacon_registration *reg, *tmp;
10687 if (state != NETLINK_URELEASE)
10688 return NOTIFY_DONE;
10692 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
10693 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
10694 cfg80211_mlme_unregister_socket(wdev, notify->portid);
10696 spin_lock_bh(&rdev->beacon_registrations_lock);
10697 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10699 if (reg->nlportid == notify->portid) {
10700 list_del(®->list);
10705 spin_unlock_bh(&rdev->beacon_registrations_lock);
10710 return NOTIFY_DONE;
10713 static struct notifier_block nl80211_netlink_notifier = {
10714 .notifier_call = nl80211_netlink_notify,
10717 void cfg80211_ft_event(struct net_device *netdev,
10718 struct cfg80211_ft_event_params *ft_event)
10720 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10721 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10722 struct sk_buff *msg;
10725 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10727 if (!ft_event->target_ap)
10730 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10734 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10740 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10741 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10742 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10744 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10745 if (ft_event->ric_ies)
10746 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10747 ft_event->ric_ies);
10749 genlmsg_end(msg, hdr);
10751 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10752 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10754 EXPORT_SYMBOL(cfg80211_ft_event);
10756 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10758 struct cfg80211_registered_device *rdev;
10759 struct sk_buff *msg;
10763 rdev = wiphy_to_dev(wdev->wiphy);
10764 if (!rdev->crit_proto_nlportid)
10767 nlportid = rdev->crit_proto_nlportid;
10768 rdev->crit_proto_nlportid = 0;
10770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10774 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10776 goto nla_put_failure;
10778 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10779 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10780 goto nla_put_failure;
10782 genlmsg_end(msg, hdr);
10784 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10789 genlmsg_cancel(msg, hdr);
10793 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10795 /* initialisation/exit functions */
10797 int nl80211_init(void)
10801 err = genl_register_family_with_ops(&nl80211_fam,
10802 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10806 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10810 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10814 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10818 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10822 #ifdef CONFIG_NL80211_TESTMODE
10823 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10828 err = netlink_register_notifier(&nl80211_netlink_notifier);
10834 genl_unregister_family(&nl80211_fam);
10838 void nl80211_exit(void)
10840 netlink_unregister_notifier(&nl80211_netlink_notifier);
10841 genl_unregister_family(&nl80211_fam);