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 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1115 struct sk_buff *msg, u32 portid, u32 seq,
1116 int flags, bool split, long *split_start,
1117 long *band_start, long *chan_start)
1120 struct nlattr *nl_bands, *nl_band;
1121 struct nlattr *nl_freqs, *nl_freq;
1122 struct nlattr *nl_cmds;
1123 enum ieee80211_band band;
1124 struct ieee80211_channel *chan;
1126 const struct ieee80211_txrx_stypes *mgmt_stypes =
1127 dev->wiphy.mgmt_stypes;
1128 long start = 0, start_chan = 0, start_band = 0;
1131 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1135 /* allow always using the variables */
1137 split_start = &start;
1138 band_start = &start_band;
1139 chan_start = &start_chan;
1142 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1143 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1144 wiphy_name(&dev->wiphy)) ||
1145 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1146 cfg80211_rdev_list_generation))
1147 goto nla_put_failure;
1149 switch (*split_start) {
1151 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1152 dev->wiphy.retry_short) ||
1153 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1154 dev->wiphy.retry_long) ||
1155 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1156 dev->wiphy.frag_threshold) ||
1157 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1158 dev->wiphy.rts_threshold) ||
1159 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1160 dev->wiphy.coverage_class) ||
1161 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1162 dev->wiphy.max_scan_ssids) ||
1163 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1164 dev->wiphy.max_sched_scan_ssids) ||
1165 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1166 dev->wiphy.max_scan_ie_len) ||
1167 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1168 dev->wiphy.max_sched_scan_ie_len) ||
1169 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1170 dev->wiphy.max_match_sets))
1171 goto nla_put_failure;
1173 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1174 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1175 goto nla_put_failure;
1176 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1177 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1178 goto nla_put_failure;
1179 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1180 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1181 goto nla_put_failure;
1182 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1183 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1184 goto nla_put_failure;
1185 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1186 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1187 goto nla_put_failure;
1188 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1189 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1190 goto nla_put_failure;
1191 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1192 nla_put_flag(msg, WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1193 goto nla_put_failure;
1199 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1200 sizeof(u32) * dev->wiphy.n_cipher_suites,
1201 dev->wiphy.cipher_suites))
1202 goto nla_put_failure;
1204 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1205 dev->wiphy.max_num_pmkids))
1206 goto nla_put_failure;
1208 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1209 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1210 goto nla_put_failure;
1212 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1213 dev->wiphy.available_antennas_tx) ||
1214 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1215 dev->wiphy.available_antennas_rx))
1216 goto nla_put_failure;
1218 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1219 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1220 dev->wiphy.probe_resp_offload))
1221 goto nla_put_failure;
1223 if ((dev->wiphy.available_antennas_tx ||
1224 dev->wiphy.available_antennas_rx) &&
1225 dev->ops->get_antenna) {
1226 u32 tx_ant = 0, rx_ant = 0;
1228 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1230 if (nla_put_u32(msg,
1231 NL80211_ATTR_WIPHY_ANTENNA_TX,
1234 NL80211_ATTR_WIPHY_ANTENNA_RX,
1236 goto nla_put_failure;
1244 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1245 dev->wiphy.interface_modes))
1246 goto nla_put_failure;
1251 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1253 goto nla_put_failure;
1255 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1256 struct ieee80211_supported_band *sband;
1258 sband = dev->wiphy.bands[band];
1263 nl_band = nla_nest_start(msg, band);
1265 goto nla_put_failure;
1267 switch (*chan_start) {
1269 if (nl80211_send_band_rateinfo(msg, sband))
1270 goto nla_put_failure;
1275 /* add frequencies */
1276 nl_freqs = nla_nest_start(
1277 msg, NL80211_BAND_ATTR_FREQS);
1279 goto nla_put_failure;
1281 for (i = *chan_start - 1;
1282 i < sband->n_channels;
1284 nl_freq = nla_nest_start(msg, i);
1286 goto nla_put_failure;
1288 chan = &sband->channels[i];
1290 if (nl80211_msg_put_channel(msg, chan,
1292 goto nla_put_failure;
1294 nla_nest_end(msg, nl_freq);
1298 if (i < sband->n_channels)
1299 *chan_start = i + 2;
1302 nla_nest_end(msg, nl_freqs);
1305 nla_nest_end(msg, nl_band);
1308 /* start again here */
1314 nla_nest_end(msg, nl_bands);
1316 if (band < IEEE80211_NUM_BANDS)
1317 *band_start = band + 1;
1321 /* if bands & channels are done, continue outside */
1322 if (*band_start == 0 && *chan_start == 0)
1327 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1329 goto nla_put_failure;
1332 #define CMD(op, n) \
1334 if (dev->ops->op) { \
1336 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1337 goto nla_put_failure; \
1341 CMD(add_virtual_intf, NEW_INTERFACE);
1342 CMD(change_virtual_intf, SET_INTERFACE);
1343 CMD(add_key, NEW_KEY);
1344 CMD(start_ap, START_AP);
1345 CMD(add_station, NEW_STATION);
1346 CMD(add_mpath, NEW_MPATH);
1347 CMD(update_mesh_config, SET_MESH_CONFIG);
1348 CMD(change_bss, SET_BSS);
1349 CMD(auth, AUTHENTICATE);
1350 CMD(assoc, ASSOCIATE);
1351 CMD(deauth, DEAUTHENTICATE);
1352 CMD(disassoc, DISASSOCIATE);
1353 CMD(join_ibss, JOIN_IBSS);
1354 CMD(join_mesh, JOIN_MESH);
1355 CMD(set_pmksa, SET_PMKSA);
1356 CMD(del_pmksa, DEL_PMKSA);
1357 CMD(flush_pmksa, FLUSH_PMKSA);
1358 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1359 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1360 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1361 CMD(mgmt_tx, FRAME);
1362 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1363 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1365 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1366 goto nla_put_failure;
1368 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1369 dev->ops->join_mesh) {
1371 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1372 goto nla_put_failure;
1374 CMD(set_wds_peer, SET_WDS_PEER);
1375 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1376 CMD(tdls_mgmt, TDLS_MGMT);
1377 CMD(tdls_oper, TDLS_OPER);
1379 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1380 CMD(sched_scan_start, START_SCHED_SCAN);
1381 CMD(probe_client, PROBE_CLIENT);
1382 CMD(set_noack_map, SET_NOACK_MAP);
1383 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1385 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1386 goto nla_put_failure;
1388 CMD(start_p2p_device, START_P2P_DEVICE);
1389 CMD(set_mcast_rate, SET_MCAST_RATE);
1391 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1392 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1395 #ifdef CONFIG_NL80211_TESTMODE
1396 CMD(testmode_cmd, TESTMODE);
1401 if (dev->ops->connect || dev->ops->auth) {
1403 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1404 goto nla_put_failure;
1407 if (dev->ops->disconnect || dev->ops->deauth) {
1409 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1410 goto nla_put_failure;
1413 nla_nest_end(msg, nl_cmds);
1418 if (dev->ops->remain_on_channel &&
1419 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1421 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1422 dev->wiphy.max_remain_on_channel_duration))
1423 goto nla_put_failure;
1425 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1426 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1427 goto nla_put_failure;
1429 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1430 goto nla_put_failure;
1436 if (nl80211_send_wowlan(msg, dev, split))
1437 goto nla_put_failure;
1445 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1446 dev->wiphy.software_iftypes))
1447 goto nla_put_failure;
1449 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
1450 goto nla_put_failure;
1456 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1457 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1458 dev->wiphy.ap_sme_capa))
1459 goto nla_put_failure;
1461 features = dev->wiphy.features;
1463 * We can only add the per-channel limit information if the
1464 * dump is split, otherwise it makes it too big. Therefore
1465 * only advertise it in that case.
1468 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1469 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1470 goto nla_put_failure;
1472 if (dev->wiphy.ht_capa_mod_mask &&
1473 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1474 sizeof(*dev->wiphy.ht_capa_mod_mask),
1475 dev->wiphy.ht_capa_mod_mask))
1476 goto nla_put_failure;
1478 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1479 dev->wiphy.max_acl_mac_addrs &&
1480 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1481 dev->wiphy.max_acl_mac_addrs))
1482 goto nla_put_failure;
1485 * Any information below this point is only available to
1486 * applications that can deal with it being split. This
1487 * helps ensure that newly added capabilities don't break
1488 * older tools by overrunning their buffers.
1490 * We still increment split_start so that in the split
1491 * case we'll continue with more data in the next round,
1492 * but break unconditionally so unsplit data stops here.
1497 if (dev->wiphy.extended_capabilities &&
1498 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1499 dev->wiphy.extended_capabilities_len,
1500 dev->wiphy.extended_capabilities) ||
1501 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1502 dev->wiphy.extended_capabilities_len,
1503 dev->wiphy.extended_capabilities_mask)))
1504 goto nla_put_failure;
1506 if (dev->wiphy.vht_capa_mod_mask &&
1507 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1508 sizeof(*dev->wiphy.vht_capa_mod_mask),
1509 dev->wiphy.vht_capa_mod_mask))
1510 goto nla_put_failure;
1516 return genlmsg_end(msg, hdr);
1519 genlmsg_cancel(msg, hdr);
1523 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1526 int start = cb->args[0];
1527 struct cfg80211_registered_device *dev;
1528 s64 filter_wiphy = -1;
1533 /* will be zeroed in nlmsg_parse() */
1534 tb = kmalloc(sizeof(*tb) * (NL80211_ATTR_MAX + 1), GFP_KERNEL);
1539 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1540 tb, NL80211_ATTR_MAX, nl80211_policy);
1542 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1543 if (tb[NL80211_ATTR_WIPHY])
1544 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1545 if (tb[NL80211_ATTR_WDEV])
1546 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1547 if (tb[NL80211_ATTR_IFINDEX]) {
1548 struct net_device *netdev;
1549 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1551 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1557 if (netdev->ieee80211_ptr) {
1559 netdev->ieee80211_ptr->wiphy);
1560 filter_wiphy = dev->wiphy_idx;
1567 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1568 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1572 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1574 /* attempt to fit multiple wiphy data chunks into the skb */
1576 ret = nl80211_send_wiphy(dev, skb,
1577 NETLINK_CB(cb->skb).portid,
1580 split, &cb->args[1],
1585 * If sending the wiphy data didn't fit (ENOBUFS
1586 * or EMSGSIZE returned), this SKB is still
1587 * empty (so it's not too big because another
1588 * wiphy dataset is already in the skb) and
1589 * we've not tried to adjust the dump allocation
1590 * yet ... then adjust the alloc size to be
1591 * bigger, and return 1 but with the empty skb.
1592 * This results in an empty message being RX'ed
1593 * in userspace, but that is ignored.
1595 * We can then retry with the larger buffer.
1597 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1599 cb->min_dump_alloc < 4096) {
1600 cb->min_dump_alloc = 4096;
1607 } while (cb->args[1] > 0);
1617 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1619 struct sk_buff *msg;
1620 struct cfg80211_registered_device *dev = info->user_ptr[0];
1622 msg = nlmsg_new(4096, GFP_KERNEL);
1626 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1627 false, NULL, NULL, NULL) < 0) {
1632 return genlmsg_reply(msg, info);
1635 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1636 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1637 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1638 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1639 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1640 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1643 static int parse_txq_params(struct nlattr *tb[],
1644 struct ieee80211_txq_params *txq_params)
1646 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1647 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1648 !tb[NL80211_TXQ_ATTR_AIFS])
1651 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1652 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1653 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1654 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1655 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1657 if (txq_params->ac >= NL80211_NUM_ACS)
1663 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1666 * You can only set the channel explicitly for WDS interfaces,
1667 * all others have their channel managed via their respective
1668 * "establish a connection" command (connect, join, ...)
1670 * For AP/GO and mesh mode, the channel can be set with the
1671 * channel userspace API, but is only stored and passed to the
1672 * low-level driver when the AP starts or the mesh is joined.
1673 * This is for backward compatibility, userspace can also give
1674 * the channel in the start-ap or join-mesh commands instead.
1676 * Monitors are special as they are normally slaved to
1677 * whatever else is going on, so they have their own special
1678 * operation to set the monitor channel if possible.
1681 wdev->iftype == NL80211_IFTYPE_AP ||
1682 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1683 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1684 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1687 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1688 struct genl_info *info,
1689 struct cfg80211_chan_def *chandef)
1693 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1696 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1698 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1699 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1700 chandef->center_freq1 = control_freq;
1701 chandef->center_freq2 = 0;
1703 /* Primary channel not allowed */
1704 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1707 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1708 enum nl80211_channel_type chantype;
1710 chantype = nla_get_u32(
1711 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1714 case NL80211_CHAN_NO_HT:
1715 case NL80211_CHAN_HT20:
1716 case NL80211_CHAN_HT40PLUS:
1717 case NL80211_CHAN_HT40MINUS:
1718 cfg80211_chandef_create(chandef, chandef->chan,
1724 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1726 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1727 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1728 chandef->center_freq1 =
1730 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1731 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1732 chandef->center_freq2 =
1734 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1737 if (!cfg80211_chandef_valid(chandef))
1740 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1741 IEEE80211_CHAN_DISABLED))
1744 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1745 chandef->width == NL80211_CHAN_WIDTH_10) &&
1746 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1752 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1753 struct wireless_dev *wdev,
1754 struct genl_info *info)
1756 struct cfg80211_chan_def chandef;
1758 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1761 iftype = wdev->iftype;
1763 if (!nl80211_can_set_dev_channel(wdev))
1766 result = nl80211_parse_chandef(rdev, info, &chandef);
1771 case NL80211_IFTYPE_AP:
1772 case NL80211_IFTYPE_P2P_GO:
1773 if (wdev->beacon_interval) {
1777 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1781 wdev->preset_chandef = chandef;
1784 case NL80211_IFTYPE_MESH_POINT:
1785 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1787 case NL80211_IFTYPE_MONITOR:
1788 result = cfg80211_set_monitor_channel(rdev, &chandef);
1797 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1799 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1800 struct net_device *netdev = info->user_ptr[1];
1802 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1805 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1808 struct net_device *dev = info->user_ptr[1];
1809 struct wireless_dev *wdev = dev->ieee80211_ptr;
1812 if (!info->attrs[NL80211_ATTR_MAC])
1815 if (netif_running(dev))
1818 if (!rdev->ops->set_wds_peer)
1821 if (wdev->iftype != NL80211_IFTYPE_WDS)
1824 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1825 return rdev_set_wds_peer(rdev, dev, bssid);
1829 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1831 struct cfg80211_registered_device *rdev;
1832 struct net_device *netdev = NULL;
1833 struct wireless_dev *wdev;
1834 int result = 0, rem_txq_params = 0;
1835 struct nlattr *nl_txq_params;
1837 u8 retry_short = 0, retry_long = 0;
1838 u32 frag_threshold = 0, rts_threshold = 0;
1839 u8 coverage_class = 0;
1844 * Try to find the wiphy and netdev. Normally this
1845 * function shouldn't need the netdev, but this is
1846 * done for backward compatibility -- previously
1847 * setting the channel was done per wiphy, but now
1848 * it is per netdev. Previous userland like hostapd
1849 * also passed a netdev to set_wiphy, so that it is
1850 * possible to let that go to the right netdev!
1853 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1854 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1856 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1857 if (netdev && netdev->ieee80211_ptr)
1858 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1864 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1867 return PTR_ERR(rdev);
1872 wdev = netdev->ieee80211_ptr;
1875 * end workaround code, by now the rdev is available
1876 * and locked, and wdev may or may not be NULL.
1879 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1880 result = cfg80211_dev_rename(
1881 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1886 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1887 struct ieee80211_txq_params txq_params;
1888 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1890 if (!rdev->ops->set_txq_params) {
1891 result = -EOPNOTSUPP;
1900 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1901 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1906 if (!netif_running(netdev)) {
1911 nla_for_each_nested(nl_txq_params,
1912 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1914 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1915 nla_data(nl_txq_params),
1916 nla_len(nl_txq_params),
1918 result = parse_txq_params(tb, &txq_params);
1922 result = rdev_set_txq_params(rdev, netdev,
1929 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1930 result = __nl80211_set_channel(rdev,
1931 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1937 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1938 struct wireless_dev *txp_wdev = wdev;
1939 enum nl80211_tx_power_setting type;
1942 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1945 if (!rdev->ops->set_tx_power) {
1946 result = -EOPNOTSUPP;
1950 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1951 type = nla_get_u32(info->attrs[idx]);
1953 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1954 (type != NL80211_TX_POWER_AUTOMATIC)) {
1959 if (type != NL80211_TX_POWER_AUTOMATIC) {
1960 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1961 mbm = nla_get_u32(info->attrs[idx]);
1964 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1969 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1970 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1972 if ((!rdev->wiphy.available_antennas_tx &&
1973 !rdev->wiphy.available_antennas_rx) ||
1974 !rdev->ops->set_antenna) {
1975 result = -EOPNOTSUPP;
1979 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1980 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1982 /* reject antenna configurations which don't match the
1983 * available antenna masks, except for the "all" mask */
1984 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1985 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1990 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1991 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1993 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2000 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2001 retry_short = nla_get_u8(
2002 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2003 if (retry_short == 0) {
2007 changed |= WIPHY_PARAM_RETRY_SHORT;
2010 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2011 retry_long = nla_get_u8(
2012 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2013 if (retry_long == 0) {
2017 changed |= WIPHY_PARAM_RETRY_LONG;
2020 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2021 frag_threshold = nla_get_u32(
2022 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2023 if (frag_threshold < 256) {
2027 if (frag_threshold != (u32) -1) {
2029 * Fragments (apart from the last one) are required to
2030 * have even length. Make the fragmentation code
2031 * simpler by stripping LSB should someone try to use
2032 * odd threshold value.
2034 frag_threshold &= ~0x1;
2036 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2039 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2040 rts_threshold = nla_get_u32(
2041 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2042 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2045 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2046 coverage_class = nla_get_u8(
2047 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2048 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2052 u8 old_retry_short, old_retry_long;
2053 u32 old_frag_threshold, old_rts_threshold;
2054 u8 old_coverage_class;
2056 if (!rdev->ops->set_wiphy_params) {
2057 result = -EOPNOTSUPP;
2061 old_retry_short = rdev->wiphy.retry_short;
2062 old_retry_long = rdev->wiphy.retry_long;
2063 old_frag_threshold = rdev->wiphy.frag_threshold;
2064 old_rts_threshold = rdev->wiphy.rts_threshold;
2065 old_coverage_class = rdev->wiphy.coverage_class;
2067 if (changed & WIPHY_PARAM_RETRY_SHORT)
2068 rdev->wiphy.retry_short = retry_short;
2069 if (changed & WIPHY_PARAM_RETRY_LONG)
2070 rdev->wiphy.retry_long = retry_long;
2071 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2072 rdev->wiphy.frag_threshold = frag_threshold;
2073 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2074 rdev->wiphy.rts_threshold = rts_threshold;
2075 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2076 rdev->wiphy.coverage_class = coverage_class;
2078 result = rdev_set_wiphy_params(rdev, changed);
2080 rdev->wiphy.retry_short = old_retry_short;
2081 rdev->wiphy.retry_long = old_retry_long;
2082 rdev->wiphy.frag_threshold = old_frag_threshold;
2083 rdev->wiphy.rts_threshold = old_rts_threshold;
2084 rdev->wiphy.coverage_class = old_coverage_class;
2094 static inline u64 wdev_id(struct wireless_dev *wdev)
2096 return (u64)wdev->identifier |
2097 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2100 static int nl80211_send_chandef(struct sk_buff *msg,
2101 struct cfg80211_chan_def *chandef)
2103 WARN_ON(!cfg80211_chandef_valid(chandef));
2105 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2106 chandef->chan->center_freq))
2108 switch (chandef->width) {
2109 case NL80211_CHAN_WIDTH_20_NOHT:
2110 case NL80211_CHAN_WIDTH_20:
2111 case NL80211_CHAN_WIDTH_40:
2112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2113 cfg80211_get_chandef_type(chandef)))
2119 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2121 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2123 if (chandef->center_freq2 &&
2124 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2129 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2130 struct cfg80211_registered_device *rdev,
2131 struct wireless_dev *wdev)
2133 struct net_device *dev = wdev->netdev;
2136 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2141 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2142 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2143 goto nla_put_failure;
2145 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2146 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2147 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2148 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2149 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2150 rdev->devlist_generation ^
2151 (cfg80211_rdev_list_generation << 2)))
2152 goto nla_put_failure;
2154 if (rdev->ops->get_channel) {
2156 struct cfg80211_chan_def chandef;
2158 ret = rdev_get_channel(rdev, wdev, &chandef);
2160 if (nl80211_send_chandef(msg, &chandef))
2161 goto nla_put_failure;
2165 if (wdev->ssid_len) {
2166 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2167 goto nla_put_failure;
2170 return genlmsg_end(msg, hdr);
2173 genlmsg_cancel(msg, hdr);
2177 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2181 int wp_start = cb->args[0];
2182 int if_start = cb->args[1];
2183 struct cfg80211_registered_device *rdev;
2184 struct wireless_dev *wdev;
2187 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2188 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2190 if (wp_idx < wp_start) {
2196 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2197 if (if_idx < if_start) {
2201 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2202 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2214 cb->args[0] = wp_idx;
2215 cb->args[1] = if_idx;
2220 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2222 struct sk_buff *msg;
2223 struct cfg80211_registered_device *dev = info->user_ptr[0];
2224 struct wireless_dev *wdev = info->user_ptr[1];
2226 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2230 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2236 return genlmsg_reply(msg, info);
2239 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2240 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2241 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2242 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2243 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2244 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2245 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2248 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2250 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2258 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2259 nla, mntr_flags_policy))
2262 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2264 *mntrflags |= (1<<flag);
2269 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2270 struct net_device *netdev, u8 use_4addr,
2271 enum nl80211_iftype iftype)
2274 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2280 case NL80211_IFTYPE_AP_VLAN:
2281 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2284 case NL80211_IFTYPE_STATION:
2285 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2295 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2297 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2298 struct vif_params params;
2300 enum nl80211_iftype otype, ntype;
2301 struct net_device *dev = info->user_ptr[1];
2302 u32 _flags, *flags = NULL;
2303 bool change = false;
2305 memset(¶ms, 0, sizeof(params));
2307 otype = ntype = dev->ieee80211_ptr->iftype;
2309 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2310 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2313 if (ntype > NL80211_IFTYPE_MAX)
2317 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2318 struct wireless_dev *wdev = dev->ieee80211_ptr;
2320 if (ntype != NL80211_IFTYPE_MESH_POINT)
2322 if (netif_running(dev))
2326 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2327 IEEE80211_MAX_MESH_ID_LEN);
2328 wdev->mesh_id_up_len =
2329 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2330 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2331 wdev->mesh_id_up_len);
2335 if (info->attrs[NL80211_ATTR_4ADDR]) {
2336 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2338 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2342 params.use_4addr = -1;
2345 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2346 if (ntype != NL80211_IFTYPE_MONITOR)
2348 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2357 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2358 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2362 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2366 if (!err && params.use_4addr != -1)
2367 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2372 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2375 struct vif_params params;
2376 struct wireless_dev *wdev;
2377 struct sk_buff *msg;
2379 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2382 memset(¶ms, 0, sizeof(params));
2384 if (!info->attrs[NL80211_ATTR_IFNAME])
2387 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2388 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2389 if (type > NL80211_IFTYPE_MAX)
2393 if (!rdev->ops->add_virtual_intf ||
2394 !(rdev->wiphy.interface_modes & (1 << type)))
2397 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2398 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2400 if (!is_valid_ether_addr(params.macaddr))
2401 return -EADDRNOTAVAIL;
2404 if (info->attrs[NL80211_ATTR_4ADDR]) {
2405 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2406 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2411 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2415 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2416 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2419 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2420 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2423 wdev = rdev_add_virtual_intf(rdev,
2424 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2425 type, err ? NULL : &flags, ¶ms);
2428 return PTR_ERR(wdev);
2432 case NL80211_IFTYPE_MESH_POINT:
2433 if (!info->attrs[NL80211_ATTR_MESH_ID])
2436 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2437 IEEE80211_MAX_MESH_ID_LEN);
2438 wdev->mesh_id_up_len =
2439 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2440 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2441 wdev->mesh_id_up_len);
2444 case NL80211_IFTYPE_P2P_DEVICE:
2446 * P2P Device doesn't have a netdev, so doesn't go
2447 * through the netdev notifier and must be added here
2449 mutex_init(&wdev->mtx);
2450 INIT_LIST_HEAD(&wdev->event_list);
2451 spin_lock_init(&wdev->event_lock);
2452 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2453 spin_lock_init(&wdev->mgmt_registrations_lock);
2455 wdev->identifier = ++rdev->wdev_id;
2456 list_add_rcu(&wdev->list, &rdev->wdev_list);
2457 rdev->devlist_generation++;
2463 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2469 return genlmsg_reply(msg, info);
2472 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2475 struct wireless_dev *wdev = info->user_ptr[1];
2477 if (!rdev->ops->del_virtual_intf)
2481 * If we remove a wireless device without a netdev then clear
2482 * user_ptr[1] so that nl80211_post_doit won't dereference it
2483 * to check if it needs to do dev_put(). Otherwise it crashes
2484 * since the wdev has been freed, unlike with a netdev where
2485 * we need the dev_put() for the netdev to really be freed.
2488 info->user_ptr[1] = NULL;
2490 return rdev_del_virtual_intf(rdev, wdev);
2493 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2495 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2496 struct net_device *dev = info->user_ptr[1];
2499 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2502 if (!rdev->ops->set_noack_map)
2505 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2507 return rdev_set_noack_map(rdev, dev, noack_map);
2510 struct get_key_cookie {
2511 struct sk_buff *msg;
2516 static void get_key_callback(void *c, struct key_params *params)
2519 struct get_key_cookie *cookie = c;
2522 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2523 params->key_len, params->key)) ||
2525 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2526 params->seq_len, params->seq)) ||
2528 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2530 goto nla_put_failure;
2532 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2534 goto nla_put_failure;
2537 nla_put(cookie->msg, NL80211_KEY_DATA,
2538 params->key_len, params->key)) ||
2540 nla_put(cookie->msg, NL80211_KEY_SEQ,
2541 params->seq_len, params->seq)) ||
2543 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2545 goto nla_put_failure;
2547 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2548 goto nla_put_failure;
2550 nla_nest_end(cookie->msg, key);
2557 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2561 struct net_device *dev = info->user_ptr[1];
2563 const u8 *mac_addr = NULL;
2565 struct get_key_cookie cookie = {
2569 struct sk_buff *msg;
2571 if (info->attrs[NL80211_ATTR_KEY_IDX])
2572 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2577 if (info->attrs[NL80211_ATTR_MAC])
2578 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2580 pairwise = !!mac_addr;
2581 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2582 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2583 if (kt >= NUM_NL80211_KEYTYPES)
2585 if (kt != NL80211_KEYTYPE_GROUP &&
2586 kt != NL80211_KEYTYPE_PAIRWISE)
2588 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2591 if (!rdev->ops->get_key)
2594 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2598 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2599 NL80211_CMD_NEW_KEY);
2601 return PTR_ERR(hdr);
2604 cookie.idx = key_idx;
2606 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2607 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2608 goto nla_put_failure;
2610 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2611 goto nla_put_failure;
2613 if (pairwise && mac_addr &&
2614 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2617 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2624 goto nla_put_failure;
2626 genlmsg_end(msg, hdr);
2627 return genlmsg_reply(msg, info);
2636 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2639 struct key_parse key;
2641 struct net_device *dev = info->user_ptr[1];
2643 err = nl80211_parse_key(info, &key);
2650 /* only support setting default key */
2651 if (!key.def && !key.defmgmt)
2654 wdev_lock(dev->ieee80211_ptr);
2657 if (!rdev->ops->set_default_key) {
2662 err = nl80211_key_allowed(dev->ieee80211_ptr);
2666 err = rdev_set_default_key(rdev, dev, key.idx,
2667 key.def_uni, key.def_multi);
2672 #ifdef CONFIG_CFG80211_WEXT
2673 dev->ieee80211_ptr->wext.default_key = key.idx;
2676 if (key.def_uni || !key.def_multi) {
2681 if (!rdev->ops->set_default_mgmt_key) {
2686 err = nl80211_key_allowed(dev->ieee80211_ptr);
2690 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2694 #ifdef CONFIG_CFG80211_WEXT
2695 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2700 wdev_unlock(dev->ieee80211_ptr);
2705 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2707 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2709 struct net_device *dev = info->user_ptr[1];
2710 struct key_parse key;
2711 const u8 *mac_addr = NULL;
2713 err = nl80211_parse_key(info, &key);
2720 if (info->attrs[NL80211_ATTR_MAC])
2721 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2723 if (key.type == -1) {
2725 key.type = NL80211_KEYTYPE_PAIRWISE;
2727 key.type = NL80211_KEYTYPE_GROUP;
2731 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2732 key.type != NL80211_KEYTYPE_GROUP)
2735 if (!rdev->ops->add_key)
2738 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2739 key.type == NL80211_KEYTYPE_PAIRWISE,
2743 wdev_lock(dev->ieee80211_ptr);
2744 err = nl80211_key_allowed(dev->ieee80211_ptr);
2746 err = rdev_add_key(rdev, dev, key.idx,
2747 key.type == NL80211_KEYTYPE_PAIRWISE,
2749 wdev_unlock(dev->ieee80211_ptr);
2754 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2758 struct net_device *dev = info->user_ptr[1];
2759 u8 *mac_addr = NULL;
2760 struct key_parse key;
2762 err = nl80211_parse_key(info, &key);
2766 if (info->attrs[NL80211_ATTR_MAC])
2767 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2769 if (key.type == -1) {
2771 key.type = NL80211_KEYTYPE_PAIRWISE;
2773 key.type = NL80211_KEYTYPE_GROUP;
2777 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2778 key.type != NL80211_KEYTYPE_GROUP)
2781 if (!rdev->ops->del_key)
2784 wdev_lock(dev->ieee80211_ptr);
2785 err = nl80211_key_allowed(dev->ieee80211_ptr);
2787 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2788 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2792 err = rdev_del_key(rdev, dev, key.idx,
2793 key.type == NL80211_KEYTYPE_PAIRWISE,
2796 #ifdef CONFIG_CFG80211_WEXT
2798 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2799 dev->ieee80211_ptr->wext.default_key = -1;
2800 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2801 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2804 wdev_unlock(dev->ieee80211_ptr);
2809 /* This function returns an error or the number of nested attributes */
2810 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2812 struct nlattr *attr;
2813 int n_entries = 0, tmp;
2815 nla_for_each_nested(attr, nl_attr, tmp) {
2816 if (nla_len(attr) != ETH_ALEN)
2826 * This function parses ACL information and allocates memory for ACL data.
2827 * On successful return, the calling function is responsible to free the
2828 * ACL buffer returned by this function.
2830 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2831 struct genl_info *info)
2833 enum nl80211_acl_policy acl_policy;
2834 struct nlattr *attr;
2835 struct cfg80211_acl_data *acl;
2836 int i = 0, n_entries, tmp;
2838 if (!wiphy->max_acl_mac_addrs)
2839 return ERR_PTR(-EOPNOTSUPP);
2841 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2842 return ERR_PTR(-EINVAL);
2844 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2845 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2846 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2847 return ERR_PTR(-EINVAL);
2849 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2850 return ERR_PTR(-EINVAL);
2852 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2854 return ERR_PTR(n_entries);
2856 if (n_entries > wiphy->max_acl_mac_addrs)
2857 return ERR_PTR(-ENOTSUPP);
2859 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2862 return ERR_PTR(-ENOMEM);
2864 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2865 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2869 acl->n_acl_entries = n_entries;
2870 acl->acl_policy = acl_policy;
2875 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2878 struct net_device *dev = info->user_ptr[1];
2879 struct cfg80211_acl_data *acl;
2882 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2883 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2886 if (!dev->ieee80211_ptr->beacon_interval)
2889 acl = parse_acl_data(&rdev->wiphy, info);
2891 return PTR_ERR(acl);
2893 err = rdev_set_mac_acl(rdev, dev, acl);
2900 static int nl80211_parse_beacon(struct nlattr *attrs[],
2901 struct cfg80211_beacon_data *bcn)
2903 bool haveinfo = false;
2905 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
2906 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
2907 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2908 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2911 memset(bcn, 0, sizeof(*bcn));
2913 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
2914 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
2915 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
2921 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
2922 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
2923 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
2930 if (attrs[NL80211_ATTR_IE]) {
2931 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
2932 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
2935 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2936 bcn->proberesp_ies =
2937 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
2938 bcn->proberesp_ies_len =
2939 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
2942 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2943 bcn->assocresp_ies =
2944 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2945 bcn->assocresp_ies_len =
2946 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2949 if (attrs[NL80211_ATTR_PROBE_RESP]) {
2950 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
2951 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
2957 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2958 struct cfg80211_ap_settings *params)
2960 struct wireless_dev *wdev;
2963 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2964 if (wdev->iftype != NL80211_IFTYPE_AP &&
2965 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2968 if (!wdev->preset_chandef.chan)
2971 params->chandef = wdev->preset_chandef;
2979 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2980 enum nl80211_auth_type auth_type,
2981 enum nl80211_commands cmd)
2983 if (auth_type > NL80211_AUTHTYPE_MAX)
2987 case NL80211_CMD_AUTHENTICATE:
2988 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2989 auth_type == NL80211_AUTHTYPE_SAE)
2992 case NL80211_CMD_CONNECT:
2993 case NL80211_CMD_START_AP:
2994 /* SAE not supported yet */
2995 if (auth_type == NL80211_AUTHTYPE_SAE)
3003 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3006 struct net_device *dev = info->user_ptr[1];
3007 struct wireless_dev *wdev = dev->ieee80211_ptr;
3008 struct cfg80211_ap_settings params;
3010 u8 radar_detect_width = 0;
3012 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3013 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3016 if (!rdev->ops->start_ap)
3019 if (wdev->beacon_interval)
3022 memset(¶ms, 0, sizeof(params));
3024 /* these are required for START_AP */
3025 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3026 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3027 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3030 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3034 params.beacon_interval =
3035 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3036 params.dtim_period =
3037 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3039 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3044 * In theory, some of these attributes should be required here
3045 * but since they were not used when the command was originally
3046 * added, keep them optional for old user space programs to let
3047 * them continue to work with drivers that do not need the
3048 * additional information -- drivers must check!
3050 if (info->attrs[NL80211_ATTR_SSID]) {
3051 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3053 nla_len(info->attrs[NL80211_ATTR_SSID]);
3054 if (params.ssid_len == 0 ||
3055 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3059 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3060 params.hidden_ssid = nla_get_u32(
3061 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3062 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3063 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3064 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3068 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3070 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3071 params.auth_type = nla_get_u32(
3072 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3073 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3074 NL80211_CMD_START_AP))
3077 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3079 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3080 NL80211_MAX_NR_CIPHER_SUITES);
3084 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3085 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3087 params.inactivity_timeout = nla_get_u16(
3088 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3091 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3092 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3094 params.p2p_ctwindow =
3095 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3096 if (params.p2p_ctwindow > 127)
3098 if (params.p2p_ctwindow != 0 &&
3099 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3103 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3106 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3108 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3111 params.p2p_opp_ps = tmp;
3112 if (params.p2p_opp_ps != 0 &&
3113 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3117 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3118 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3121 } else if (wdev->preset_chandef.chan) {
3122 params.chandef = wdev->preset_chandef;
3123 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3126 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3129 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3133 radar_detect_width = BIT(params.chandef.width);
3134 params.radar_required = true;
3137 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3138 params.chandef.chan,
3140 radar_detect_width);
3144 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3145 params.acl = parse_acl_data(&rdev->wiphy, info);
3146 if (IS_ERR(params.acl))
3147 return PTR_ERR(params.acl);
3150 err = rdev_start_ap(rdev, dev, ¶ms);
3152 wdev->preset_chandef = params.chandef;
3153 wdev->beacon_interval = params.beacon_interval;
3154 wdev->channel = params.chandef.chan;
3155 wdev->ssid_len = params.ssid_len;
3156 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3164 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3166 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3167 struct net_device *dev = info->user_ptr[1];
3168 struct wireless_dev *wdev = dev->ieee80211_ptr;
3169 struct cfg80211_beacon_data params;
3172 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3173 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3176 if (!rdev->ops->change_beacon)
3179 if (!wdev->beacon_interval)
3182 err = nl80211_parse_beacon(info->attrs, ¶ms);
3186 return rdev_change_beacon(rdev, dev, ¶ms);
3189 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3191 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3192 struct net_device *dev = info->user_ptr[1];
3194 return cfg80211_stop_ap(rdev, dev);
3197 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3198 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3199 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3200 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3201 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3202 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3203 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3206 static int parse_station_flags(struct genl_info *info,
3207 enum nl80211_iftype iftype,
3208 struct station_parameters *params)
3210 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3215 * Try parsing the new attribute first so userspace
3216 * can specify both for older kernels.
3218 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3220 struct nl80211_sta_flag_update *sta_flags;
3222 sta_flags = nla_data(nla);
3223 params->sta_flags_mask = sta_flags->mask;
3224 params->sta_flags_set = sta_flags->set;
3225 params->sta_flags_set &= params->sta_flags_mask;
3226 if ((params->sta_flags_mask |
3227 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3232 /* if present, parse the old attribute */
3234 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3238 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3239 nla, sta_flags_policy))
3243 * Only allow certain flags for interface types so that
3244 * other attributes are silently ignored. Remember that
3245 * this is backward compatibility code with old userspace
3246 * and shouldn't be hit in other cases anyway.
3249 case NL80211_IFTYPE_AP:
3250 case NL80211_IFTYPE_AP_VLAN:
3251 case NL80211_IFTYPE_P2P_GO:
3252 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3253 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3254 BIT(NL80211_STA_FLAG_WME) |
3255 BIT(NL80211_STA_FLAG_MFP);
3257 case NL80211_IFTYPE_P2P_CLIENT:
3258 case NL80211_IFTYPE_STATION:
3259 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3260 BIT(NL80211_STA_FLAG_TDLS_PEER);
3262 case NL80211_IFTYPE_MESH_POINT:
3263 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3264 BIT(NL80211_STA_FLAG_MFP) |
3265 BIT(NL80211_STA_FLAG_AUTHORIZED);
3270 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3272 params->sta_flags_set |= (1<<flag);
3274 /* no longer support new API additions in old API */
3275 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3283 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3286 struct nlattr *rate;
3290 rate = nla_nest_start(msg, attr);
3294 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3295 bitrate = cfg80211_calculate_bitrate(info);
3296 /* report 16-bit bitrate only if we can */
3297 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3299 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3301 if (bitrate_compat > 0 &&
3302 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3305 if (info->flags & RATE_INFO_FLAGS_MCS) {
3306 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3308 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3309 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3311 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3312 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3314 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3315 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3317 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3319 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3320 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3322 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3323 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3325 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3326 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3328 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3329 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3331 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3332 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3336 nla_nest_end(msg, rate);
3340 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3349 attr = nla_nest_start(msg, id);
3353 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3354 if (!(mask & BIT(i)))
3357 if (nla_put_u8(msg, i, signal[i]))
3361 nla_nest_end(msg, attr);
3366 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3368 struct cfg80211_registered_device *rdev,
3369 struct net_device *dev,
3370 const u8 *mac_addr, struct station_info *sinfo)
3373 struct nlattr *sinfoattr, *bss_param;
3375 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3379 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3380 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3381 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3382 goto nla_put_failure;
3384 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3386 goto nla_put_failure;
3387 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3388 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3389 sinfo->connected_time))
3390 goto nla_put_failure;
3391 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3392 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3393 sinfo->inactive_time))
3394 goto nla_put_failure;
3395 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3396 STATION_INFO_RX_BYTES64)) &&
3397 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3398 (u32)sinfo->rx_bytes))
3399 goto nla_put_failure;
3400 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3401 STATION_INFO_TX_BYTES64)) &&
3402 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3403 (u32)sinfo->tx_bytes))
3404 goto nla_put_failure;
3405 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3406 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3408 goto nla_put_failure;
3409 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3410 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3412 goto nla_put_failure;
3413 if ((sinfo->filled & STATION_INFO_LLID) &&
3414 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3415 goto nla_put_failure;
3416 if ((sinfo->filled & STATION_INFO_PLID) &&
3417 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3418 goto nla_put_failure;
3419 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3420 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3421 sinfo->plink_state))
3422 goto nla_put_failure;
3423 switch (rdev->wiphy.signal_type) {
3424 case CFG80211_SIGNAL_TYPE_MBM:
3425 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3426 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3428 goto nla_put_failure;
3429 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3430 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3432 goto nla_put_failure;
3437 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3438 if (!nl80211_put_signal(msg, sinfo->chains,
3439 sinfo->chain_signal,
3440 NL80211_STA_INFO_CHAIN_SIGNAL))
3441 goto nla_put_failure;
3443 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3444 if (!nl80211_put_signal(msg, sinfo->chains,
3445 sinfo->chain_signal_avg,
3446 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3447 goto nla_put_failure;
3449 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3450 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3451 NL80211_STA_INFO_TX_BITRATE))
3452 goto nla_put_failure;
3454 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3455 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3456 NL80211_STA_INFO_RX_BITRATE))
3457 goto nla_put_failure;
3459 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3460 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3462 goto nla_put_failure;
3463 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3464 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3466 goto nla_put_failure;
3467 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3468 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3470 goto nla_put_failure;
3471 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3472 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3474 goto nla_put_failure;
3475 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3476 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3477 sinfo->beacon_loss_count))
3478 goto nla_put_failure;
3479 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3480 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3482 goto nla_put_failure;
3483 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3484 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3486 goto nla_put_failure;
3487 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3488 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3490 goto nla_put_failure;
3491 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3492 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3494 goto nla_put_failure;
3496 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3497 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3498 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3499 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3500 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3501 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3502 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3503 sinfo->bss_param.dtim_period) ||
3504 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3505 sinfo->bss_param.beacon_interval))
3506 goto nla_put_failure;
3508 nla_nest_end(msg, bss_param);
3510 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3511 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3512 sizeof(struct nl80211_sta_flag_update),
3514 goto nla_put_failure;
3515 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3516 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3518 goto nla_put_failure;
3519 nla_nest_end(msg, sinfoattr);
3521 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3522 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3523 sinfo->assoc_req_ies))
3524 goto nla_put_failure;
3526 return genlmsg_end(msg, hdr);
3529 genlmsg_cancel(msg, hdr);
3533 static int nl80211_dump_station(struct sk_buff *skb,
3534 struct netlink_callback *cb)
3536 struct station_info sinfo;
3537 struct cfg80211_registered_device *dev;
3538 struct wireless_dev *wdev;
3539 u8 mac_addr[ETH_ALEN];
3540 int sta_idx = cb->args[2];
3543 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3547 if (!wdev->netdev) {
3552 if (!dev->ops->dump_station) {
3558 memset(&sinfo, 0, sizeof(sinfo));
3559 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3566 if (nl80211_send_station(skb,
3567 NETLINK_CB(cb->skb).portid,
3568 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3569 dev, wdev->netdev, mac_addr,
3578 cb->args[2] = sta_idx;
3581 nl80211_finish_wdev_dump(dev);
3586 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3589 struct net_device *dev = info->user_ptr[1];
3590 struct station_info sinfo;
3591 struct sk_buff *msg;
3592 u8 *mac_addr = NULL;
3595 memset(&sinfo, 0, sizeof(sinfo));
3597 if (!info->attrs[NL80211_ATTR_MAC])
3600 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3602 if (!rdev->ops->get_station)
3605 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3609 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3613 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3614 rdev, dev, mac_addr, &sinfo) < 0) {
3619 return genlmsg_reply(msg, info);
3622 int cfg80211_check_station_change(struct wiphy *wiphy,
3623 struct station_parameters *params,
3624 enum cfg80211_station_type statype)
3626 if (params->listen_interval != -1)
3631 /* When you run into this, adjust the code below for the new flag */
3632 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3635 case CFG80211_STA_MESH_PEER_KERNEL:
3636 case CFG80211_STA_MESH_PEER_USER:
3638 * No ignoring the TDLS flag here -- the userspace mesh
3639 * code doesn't have the bug of including TDLS in the
3642 if (params->sta_flags_mask &
3643 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3644 BIT(NL80211_STA_FLAG_MFP) |
3645 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3648 case CFG80211_STA_TDLS_PEER_SETUP:
3649 case CFG80211_STA_TDLS_PEER_ACTIVE:
3650 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3652 /* ignore since it can't change */
3653 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3656 /* disallow mesh-specific things */
3657 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3659 if (params->local_pm)
3661 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3665 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3666 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3667 /* TDLS can't be set, ... */
3668 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3671 * ... but don't bother the driver with it. This works around
3672 * a hostapd/wpa_supplicant issue -- it always includes the
3673 * TLDS_PEER flag in the mask even for AP mode.
3675 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3678 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3679 /* reject other things that can't change */
3680 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3682 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3684 if (params->supported_rates)
3686 if (params->ext_capab || params->ht_capa || params->vht_capa)
3690 if (statype != CFG80211_STA_AP_CLIENT) {
3696 case CFG80211_STA_AP_MLME_CLIENT:
3697 /* Use this only for authorizing/unauthorizing a station */
3698 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3701 case CFG80211_STA_AP_CLIENT:
3702 /* accept only the listed bits */
3703 if (params->sta_flags_mask &
3704 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3705 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3706 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3707 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3708 BIT(NL80211_STA_FLAG_WME) |
3709 BIT(NL80211_STA_FLAG_MFP)))
3712 /* but authenticated/associated only if driver handles it */
3713 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3714 params->sta_flags_mask &
3715 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3716 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3719 case CFG80211_STA_IBSS:
3720 case CFG80211_STA_AP_STA:
3721 /* reject any changes other than AUTHORIZED */
3722 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3725 case CFG80211_STA_TDLS_PEER_SETUP:
3726 /* reject any changes other than AUTHORIZED or WME */
3727 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3728 BIT(NL80211_STA_FLAG_WME)))
3730 /* force (at least) rates when authorizing */
3731 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3732 !params->supported_rates)
3735 case CFG80211_STA_TDLS_PEER_ACTIVE:
3736 /* reject any changes */
3738 case CFG80211_STA_MESH_PEER_KERNEL:
3739 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3742 case CFG80211_STA_MESH_PEER_USER:
3743 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3750 EXPORT_SYMBOL(cfg80211_check_station_change);
3753 * Get vlan interface making sure it is running and on the right wiphy.
3755 static struct net_device *get_vlan(struct genl_info *info,
3756 struct cfg80211_registered_device *rdev)
3758 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3759 struct net_device *v;
3765 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3767 return ERR_PTR(-ENODEV);
3769 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3774 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3775 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3776 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3781 if (!netif_running(v)) {
3789 return ERR_PTR(ret);
3792 static struct nla_policy
3793 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3794 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3795 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3798 static int nl80211_parse_sta_wme(struct genl_info *info,
3799 struct station_parameters *params)
3801 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3805 /* parse WME attributes if present */
3806 if (!info->attrs[NL80211_ATTR_STA_WME])
3809 nla = info->attrs[NL80211_ATTR_STA_WME];
3810 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3811 nl80211_sta_wme_policy);
3815 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3816 params->uapsd_queues = nla_get_u8(
3817 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3818 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3821 if (tb[NL80211_STA_WME_MAX_SP])
3822 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3824 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3827 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3832 static int nl80211_set_station_tdls(struct genl_info *info,
3833 struct station_parameters *params)
3835 /* Dummy STA entry gets updated once the peer capabilities are known */
3836 if (info->attrs[NL80211_ATTR_PEER_AID])
3837 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3838 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3840 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3841 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3843 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3845 return nl80211_parse_sta_wme(info, params);
3848 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3851 struct net_device *dev = info->user_ptr[1];
3852 struct station_parameters params;
3856 memset(¶ms, 0, sizeof(params));
3858 params.listen_interval = -1;
3860 if (!rdev->ops->change_station)
3863 if (info->attrs[NL80211_ATTR_STA_AID])
3866 if (!info->attrs[NL80211_ATTR_MAC])
3869 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3871 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3872 params.supported_rates =
3873 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3874 params.supported_rates_len =
3875 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3878 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3880 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3881 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3884 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3886 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3887 params.ext_capab_len =
3888 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3891 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3894 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3897 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
3898 params.plink_action =
3899 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3900 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3904 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
3905 params.plink_state =
3906 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3907 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3909 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3912 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3913 enum nl80211_mesh_power_mode pm = nla_get_u32(
3914 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3916 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3917 pm > NL80211_MESH_POWER_MAX)
3920 params.local_pm = pm;
3923 /* Include parameters for TDLS peer (will check later) */
3924 err = nl80211_set_station_tdls(info, ¶ms);
3928 params.vlan = get_vlan(info, rdev);
3929 if (IS_ERR(params.vlan))
3930 return PTR_ERR(params.vlan);
3932 switch (dev->ieee80211_ptr->iftype) {
3933 case NL80211_IFTYPE_AP:
3934 case NL80211_IFTYPE_AP_VLAN:
3935 case NL80211_IFTYPE_P2P_GO:
3936 case NL80211_IFTYPE_P2P_CLIENT:
3937 case NL80211_IFTYPE_STATION:
3938 case NL80211_IFTYPE_ADHOC:
3939 case NL80211_IFTYPE_MESH_POINT:
3946 /* driver will call cfg80211_check_station_change() */
3947 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3951 dev_put(params.vlan);
3956 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3960 struct net_device *dev = info->user_ptr[1];
3961 struct station_parameters params;
3962 u8 *mac_addr = NULL;
3964 memset(¶ms, 0, sizeof(params));
3966 if (!rdev->ops->add_station)
3969 if (!info->attrs[NL80211_ATTR_MAC])
3972 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3975 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3978 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3979 !info->attrs[NL80211_ATTR_PEER_AID])
3982 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3983 params.supported_rates =
3984 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3985 params.supported_rates_len =
3986 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3987 params.listen_interval =
3988 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3990 if (info->attrs[NL80211_ATTR_PEER_AID])
3991 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3993 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3994 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3997 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3999 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4000 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4003 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4005 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4006 params.ext_capab_len =
4007 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4010 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4012 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4014 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4016 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4018 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4019 params.plink_action =
4020 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4021 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4025 err = nl80211_parse_sta_wme(info, ¶ms);
4029 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4032 /* When you run into this, adjust the code below for the new flag */
4033 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4035 switch (dev->ieee80211_ptr->iftype) {
4036 case NL80211_IFTYPE_AP:
4037 case NL80211_IFTYPE_AP_VLAN:
4038 case NL80211_IFTYPE_P2P_GO:
4039 /* ignore WME attributes if iface/sta is not capable */
4040 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4041 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4042 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4044 /* TDLS peers cannot be added */
4045 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4046 info->attrs[NL80211_ATTR_PEER_AID])
4048 /* but don't bother the driver with it */
4049 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4051 /* allow authenticated/associated only if driver handles it */
4052 if (!(rdev->wiphy.features &
4053 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4054 params.sta_flags_mask &
4055 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4056 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4059 /* must be last in here for error handling */
4060 params.vlan = get_vlan(info, rdev);
4061 if (IS_ERR(params.vlan))
4062 return PTR_ERR(params.vlan);
4064 case NL80211_IFTYPE_MESH_POINT:
4065 /* ignore uAPSD data */
4066 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4068 /* associated is disallowed */
4069 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4071 /* TDLS peers cannot be added */
4072 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4073 info->attrs[NL80211_ATTR_PEER_AID])
4076 case NL80211_IFTYPE_STATION:
4077 case NL80211_IFTYPE_P2P_CLIENT:
4078 /* ignore uAPSD data */
4079 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4081 /* these are disallowed */
4082 if (params.sta_flags_mask &
4083 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4084 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4086 /* Only TDLS peers can be added */
4087 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4089 /* Can only add if TDLS ... */
4090 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4092 /* ... with external setup is supported */
4093 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4096 * Older wpa_supplicant versions always mark the TDLS peer
4097 * as authorized, but it shouldn't yet be.
4099 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4105 /* be aware of params.vlan when changing code here */
4107 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4110 dev_put(params.vlan);
4114 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4117 struct net_device *dev = info->user_ptr[1];
4118 u8 *mac_addr = NULL;
4120 if (info->attrs[NL80211_ATTR_MAC])
4121 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4123 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4124 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4125 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4126 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4129 if (!rdev->ops->del_station)
4132 return rdev_del_station(rdev, dev, mac_addr);
4135 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4136 int flags, struct net_device *dev,
4137 u8 *dst, u8 *next_hop,
4138 struct mpath_info *pinfo)
4141 struct nlattr *pinfoattr;
4143 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4147 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4148 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4149 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4150 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4151 goto nla_put_failure;
4153 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4155 goto nla_put_failure;
4156 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4157 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4159 goto nla_put_failure;
4160 if (((pinfo->filled & MPATH_INFO_SN) &&
4161 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4162 ((pinfo->filled & MPATH_INFO_METRIC) &&
4163 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4165 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4166 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4168 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4169 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4171 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4172 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4173 pinfo->discovery_timeout)) ||
4174 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4175 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4176 pinfo->discovery_retries)))
4177 goto nla_put_failure;
4179 nla_nest_end(msg, pinfoattr);
4181 return genlmsg_end(msg, hdr);
4184 genlmsg_cancel(msg, hdr);
4188 static int nl80211_dump_mpath(struct sk_buff *skb,
4189 struct netlink_callback *cb)
4191 struct mpath_info pinfo;
4192 struct cfg80211_registered_device *dev;
4193 struct wireless_dev *wdev;
4195 u8 next_hop[ETH_ALEN];
4196 int path_idx = cb->args[2];
4199 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4203 if (!dev->ops->dump_mpath) {
4208 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4214 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4221 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4222 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4223 wdev->netdev, dst, next_hop,
4232 cb->args[2] = path_idx;
4235 nl80211_finish_wdev_dump(dev);
4239 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4243 struct net_device *dev = info->user_ptr[1];
4244 struct mpath_info pinfo;
4245 struct sk_buff *msg;
4247 u8 next_hop[ETH_ALEN];
4249 memset(&pinfo, 0, sizeof(pinfo));
4251 if (!info->attrs[NL80211_ATTR_MAC])
4254 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4256 if (!rdev->ops->get_mpath)
4259 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4262 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4266 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4270 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4271 dev, dst, next_hop, &pinfo) < 0) {
4276 return genlmsg_reply(msg, info);
4279 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4282 struct net_device *dev = info->user_ptr[1];
4284 u8 *next_hop = NULL;
4286 if (!info->attrs[NL80211_ATTR_MAC])
4289 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4292 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4293 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4295 if (!rdev->ops->change_mpath)
4298 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4301 return rdev_change_mpath(rdev, dev, dst, next_hop);
4304 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4307 struct net_device *dev = info->user_ptr[1];
4309 u8 *next_hop = NULL;
4311 if (!info->attrs[NL80211_ATTR_MAC])
4314 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4317 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4318 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4320 if (!rdev->ops->add_mpath)
4323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4326 return rdev_add_mpath(rdev, dev, dst, next_hop);
4329 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4331 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4332 struct net_device *dev = info->user_ptr[1];
4335 if (info->attrs[NL80211_ATTR_MAC])
4336 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4338 if (!rdev->ops->del_mpath)
4341 return rdev_del_mpath(rdev, dev, dst);
4344 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4347 struct net_device *dev = info->user_ptr[1];
4348 struct bss_parameters params;
4350 memset(¶ms, 0, sizeof(params));
4351 /* default to not changing parameters */
4352 params.use_cts_prot = -1;
4353 params.use_short_preamble = -1;
4354 params.use_short_slot_time = -1;
4355 params.ap_isolate = -1;
4356 params.ht_opmode = -1;
4357 params.p2p_ctwindow = -1;
4358 params.p2p_opp_ps = -1;
4360 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4361 params.use_cts_prot =
4362 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4363 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4364 params.use_short_preamble =
4365 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4366 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4367 params.use_short_slot_time =
4368 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4369 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4370 params.basic_rates =
4371 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4372 params.basic_rates_len =
4373 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4375 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4376 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4377 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4379 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4381 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4382 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4384 params.p2p_ctwindow =
4385 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4386 if (params.p2p_ctwindow < 0)
4388 if (params.p2p_ctwindow != 0 &&
4389 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4393 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4398 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4401 params.p2p_opp_ps = tmp;
4402 if (params.p2p_opp_ps &&
4403 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4407 if (!rdev->ops->change_bss)
4410 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4414 return rdev_change_bss(rdev, dev, ¶ms);
4417 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4418 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4419 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4420 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4421 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4422 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4423 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4426 static int parse_reg_rule(struct nlattr *tb[],
4427 struct ieee80211_reg_rule *reg_rule)
4429 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4430 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4432 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4434 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4436 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4438 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4440 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4443 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4445 freq_range->start_freq_khz =
4446 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4447 freq_range->end_freq_khz =
4448 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4449 freq_range->max_bandwidth_khz =
4450 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4452 power_rule->max_eirp =
4453 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4455 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4456 power_rule->max_antenna_gain =
4457 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4462 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4466 enum nl80211_user_reg_hint_type user_reg_hint_type;
4469 * You should only get this when cfg80211 hasn't yet initialized
4470 * completely when built-in to the kernel right between the time
4471 * window between nl80211_init() and regulatory_init(), if that is
4474 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4475 return -EINPROGRESS;
4477 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4480 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4482 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4483 user_reg_hint_type =
4484 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4486 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4488 switch (user_reg_hint_type) {
4489 case NL80211_USER_REG_HINT_USER:
4490 case NL80211_USER_REG_HINT_CELL_BASE:
4496 r = regulatory_hint_user(data, user_reg_hint_type);
4501 static int nl80211_get_mesh_config(struct sk_buff *skb,
4502 struct genl_info *info)
4504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4505 struct net_device *dev = info->user_ptr[1];
4506 struct wireless_dev *wdev = dev->ieee80211_ptr;
4507 struct mesh_config cur_params;
4510 struct nlattr *pinfoattr;
4511 struct sk_buff *msg;
4513 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4516 if (!rdev->ops->get_mesh_config)
4520 /* If not connected, get default parameters */
4521 if (!wdev->mesh_id_len)
4522 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4524 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4530 /* Draw up a netlink message to send back */
4531 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4534 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4535 NL80211_CMD_GET_MESH_CONFIG);
4538 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4540 goto nla_put_failure;
4541 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4542 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4543 cur_params.dot11MeshRetryTimeout) ||
4544 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4545 cur_params.dot11MeshConfirmTimeout) ||
4546 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4547 cur_params.dot11MeshHoldingTimeout) ||
4548 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4549 cur_params.dot11MeshMaxPeerLinks) ||
4550 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4551 cur_params.dot11MeshMaxRetries) ||
4552 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4553 cur_params.dot11MeshTTL) ||
4554 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4555 cur_params.element_ttl) ||
4556 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4557 cur_params.auto_open_plinks) ||
4558 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4559 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4560 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4561 cur_params.dot11MeshHWMPmaxPREQretries) ||
4562 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4563 cur_params.path_refresh_time) ||
4564 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4565 cur_params.min_discovery_timeout) ||
4566 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4567 cur_params.dot11MeshHWMPactivePathTimeout) ||
4568 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4569 cur_params.dot11MeshHWMPpreqMinInterval) ||
4570 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4571 cur_params.dot11MeshHWMPperrMinInterval) ||
4572 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4573 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4574 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4575 cur_params.dot11MeshHWMPRootMode) ||
4576 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4577 cur_params.dot11MeshHWMPRannInterval) ||
4578 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4579 cur_params.dot11MeshGateAnnouncementProtocol) ||
4580 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4581 cur_params.dot11MeshForwarding) ||
4582 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4583 cur_params.rssi_threshold) ||
4584 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4585 cur_params.ht_opmode) ||
4586 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4587 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4588 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4589 cur_params.dot11MeshHWMProotInterval) ||
4590 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4591 cur_params.dot11MeshHWMPconfirmationInterval) ||
4592 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4593 cur_params.power_mode) ||
4594 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4595 cur_params.dot11MeshAwakeWindowDuration) ||
4596 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4597 cur_params.plink_timeout))
4598 goto nla_put_failure;
4599 nla_nest_end(msg, pinfoattr);
4600 genlmsg_end(msg, hdr);
4601 return genlmsg_reply(msg, info);
4604 genlmsg_cancel(msg, hdr);
4610 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4611 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4612 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4613 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4614 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4615 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4616 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4617 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4618 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4619 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4620 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4621 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4622 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4623 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4624 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4625 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4626 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4627 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4628 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4629 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4630 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4631 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4632 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4633 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4634 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4635 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4636 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4637 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4638 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4641 static const struct nla_policy
4642 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4643 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4644 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4645 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4646 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4647 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4648 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4649 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4650 .len = IEEE80211_MAX_DATA_LEN },
4651 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4654 static int nl80211_parse_mesh_config(struct genl_info *info,
4655 struct mesh_config *cfg,
4658 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4661 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4664 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4666 cfg->param = fn(tb[attr]); \
4667 mask |= (1 << (attr - 1)); \
4672 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4674 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4675 info->attrs[NL80211_ATTR_MESH_CONFIG],
4676 nl80211_meshconf_params_policy))
4679 /* This makes sure that there aren't more than 32 mesh config
4680 * parameters (otherwise our bitfield scheme would not work.) */
4681 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4683 /* Fill in the params struct */
4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4685 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4688 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4690 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4691 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4693 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4694 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4696 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4697 mask, NL80211_MESHCONF_MAX_RETRIES,
4699 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4700 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4701 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4702 mask, NL80211_MESHCONF_ELEMENT_TTL,
4704 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4705 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4707 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4709 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4711 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4712 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4714 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4715 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4717 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4718 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4722 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4724 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4726 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4730 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4732 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4733 dot11MeshHWMPnetDiameterTraversalTime,
4735 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4737 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4738 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4740 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4741 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4743 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4744 dot11MeshGateAnnouncementProtocol, 0, 1,
4745 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4747 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4748 mask, NL80211_MESHCONF_FORWARDING,
4750 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4751 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4753 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4754 mask, NL80211_MESHCONF_HT_OPMODE,
4756 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4758 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4760 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4761 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4763 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4764 dot11MeshHWMPconfirmationInterval,
4766 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4768 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4769 NL80211_MESH_POWER_ACTIVE,
4770 NL80211_MESH_POWER_MAX,
4771 mask, NL80211_MESHCONF_POWER_MODE,
4773 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4775 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4776 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4777 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4784 #undef FILL_IN_MESH_PARAM_IF_SET
4787 static int nl80211_parse_mesh_setup(struct genl_info *info,
4788 struct mesh_setup *setup)
4790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4791 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4793 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4795 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4796 info->attrs[NL80211_ATTR_MESH_SETUP],
4797 nl80211_mesh_setup_params_policy))
4800 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4801 setup->sync_method =
4802 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4803 IEEE80211_SYNC_METHOD_VENDOR :
4804 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4806 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4807 setup->path_sel_proto =
4808 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4809 IEEE80211_PATH_PROTOCOL_VENDOR :
4810 IEEE80211_PATH_PROTOCOL_HWMP;
4812 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4813 setup->path_metric =
4814 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4815 IEEE80211_PATH_METRIC_VENDOR :
4816 IEEE80211_PATH_METRIC_AIRTIME;
4819 if (tb[NL80211_MESH_SETUP_IE]) {
4820 struct nlattr *ieattr =
4821 tb[NL80211_MESH_SETUP_IE];
4822 if (!is_valid_ie_attr(ieattr))
4824 setup->ie = nla_data(ieattr);
4825 setup->ie_len = nla_len(ieattr);
4827 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4828 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4830 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
4831 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4832 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4833 if (setup->is_secure)
4834 setup->user_mpm = true;
4836 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4837 if (!setup->user_mpm)
4840 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4846 static int nl80211_update_mesh_config(struct sk_buff *skb,
4847 struct genl_info *info)
4849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4850 struct net_device *dev = info->user_ptr[1];
4851 struct wireless_dev *wdev = dev->ieee80211_ptr;
4852 struct mesh_config cfg;
4856 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4859 if (!rdev->ops->update_mesh_config)
4862 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4867 if (!wdev->mesh_id_len)
4871 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4878 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4880 const struct ieee80211_regdomain *regdom;
4881 struct sk_buff *msg;
4883 struct nlattr *nl_reg_rules;
4886 if (!cfg80211_regdomain)
4889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4893 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4894 NL80211_CMD_GET_REG);
4898 if (reg_last_request_cell_base() &&
4899 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4900 NL80211_USER_REG_HINT_CELL_BASE))
4901 goto nla_put_failure;
4904 regdom = rcu_dereference(cfg80211_regdomain);
4906 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4907 (regdom->dfs_region &&
4908 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4909 goto nla_put_failure_rcu;
4911 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4913 goto nla_put_failure_rcu;
4915 for (i = 0; i < regdom->n_reg_rules; i++) {
4916 struct nlattr *nl_reg_rule;
4917 const struct ieee80211_reg_rule *reg_rule;
4918 const struct ieee80211_freq_range *freq_range;
4919 const struct ieee80211_power_rule *power_rule;
4921 reg_rule = ®dom->reg_rules[i];
4922 freq_range = ®_rule->freq_range;
4923 power_rule = ®_rule->power_rule;
4925 nl_reg_rule = nla_nest_start(msg, i);
4927 goto nla_put_failure_rcu;
4929 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4931 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4932 freq_range->start_freq_khz) ||
4933 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4934 freq_range->end_freq_khz) ||
4935 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4936 freq_range->max_bandwidth_khz) ||
4937 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4938 power_rule->max_antenna_gain) ||
4939 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4940 power_rule->max_eirp))
4941 goto nla_put_failure_rcu;
4943 nla_nest_end(msg, nl_reg_rule);
4947 nla_nest_end(msg, nl_reg_rules);
4949 genlmsg_end(msg, hdr);
4950 return genlmsg_reply(msg, info);
4952 nla_put_failure_rcu:
4955 genlmsg_cancel(msg, hdr);
4961 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4963 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4964 struct nlattr *nl_reg_rule;
4965 char *alpha2 = NULL;
4966 int rem_reg_rules = 0, r = 0;
4967 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4969 struct ieee80211_regdomain *rd = NULL;
4971 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4974 if (!info->attrs[NL80211_ATTR_REG_RULES])
4977 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4979 if (info->attrs[NL80211_ATTR_DFS_REGION])
4980 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4982 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4985 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4989 size_of_regd = sizeof(struct ieee80211_regdomain) +
4990 num_rules * sizeof(struct ieee80211_reg_rule);
4992 rd = kzalloc(size_of_regd, GFP_KERNEL);
4996 rd->n_reg_rules = num_rules;
4997 rd->alpha2[0] = alpha2[0];
4998 rd->alpha2[1] = alpha2[1];
5001 * Disable DFS master mode if the DFS region was
5002 * not supported or known on this kernel.
5004 if (reg_supported_dfs_region(dfs_region))
5005 rd->dfs_region = dfs_region;
5007 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5009 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5010 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5012 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5018 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5025 /* set_regdom took ownership */
5033 static int validate_scan_freqs(struct nlattr *freqs)
5035 struct nlattr *attr1, *attr2;
5036 int n_channels = 0, tmp1, tmp2;
5038 nla_for_each_nested(attr1, freqs, tmp1) {
5041 * Some hardware has a limited channel list for
5042 * scanning, and it is pretty much nonsensical
5043 * to scan for a channel twice, so disallow that
5044 * and don't require drivers to check that the
5045 * channel list they get isn't longer than what
5046 * they can scan, as long as they can scan all
5047 * the channels they registered at once.
5049 nla_for_each_nested(attr2, freqs, tmp2)
5050 if (attr1 != attr2 &&
5051 nla_get_u32(attr1) == nla_get_u32(attr2))
5058 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5061 struct wireless_dev *wdev = info->user_ptr[1];
5062 struct cfg80211_scan_request *request;
5063 struct nlattr *attr;
5064 struct wiphy *wiphy;
5065 int err, tmp, n_ssids = 0, n_channels, i;
5068 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5071 wiphy = &rdev->wiphy;
5073 if (!rdev->ops->scan)
5076 if (rdev->scan_req) {
5081 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5082 n_channels = validate_scan_freqs(
5083 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5089 enum ieee80211_band band;
5092 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5093 if (wiphy->bands[band])
5094 n_channels += wiphy->bands[band]->n_channels;
5097 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5098 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5101 if (n_ssids > wiphy->max_scan_ssids) {
5106 if (info->attrs[NL80211_ATTR_IE])
5107 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5111 if (ie_len > wiphy->max_scan_ie_len) {
5116 request = kzalloc(sizeof(*request)
5117 + sizeof(*request->ssids) * n_ssids
5118 + sizeof(*request->channels) * n_channels
5119 + ie_len, GFP_KERNEL);
5126 request->ssids = (void *)&request->channels[n_channels];
5127 request->n_ssids = n_ssids;
5130 request->ie = (void *)(request->ssids + n_ssids);
5132 request->ie = (void *)(request->channels + n_channels);
5136 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5137 /* user specified, bail out if channel not found */
5138 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5139 struct ieee80211_channel *chan;
5141 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5148 /* ignore disabled channels */
5149 if (chan->flags & IEEE80211_CHAN_DISABLED)
5152 request->channels[i] = chan;
5156 enum ieee80211_band band;
5159 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5161 if (!wiphy->bands[band])
5163 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5164 struct ieee80211_channel *chan;
5166 chan = &wiphy->bands[band]->channels[j];
5168 if (chan->flags & IEEE80211_CHAN_DISABLED)
5171 request->channels[i] = chan;
5182 request->n_channels = i;
5185 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5186 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5187 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5191 request->ssids[i].ssid_len = nla_len(attr);
5192 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5197 if (info->attrs[NL80211_ATTR_IE]) {
5198 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5199 memcpy((void *)request->ie,
5200 nla_data(info->attrs[NL80211_ATTR_IE]),
5204 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5205 if (wiphy->bands[i])
5207 (1 << wiphy->bands[i]->n_bitrates) - 1;
5209 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5210 nla_for_each_nested(attr,
5211 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5213 enum ieee80211_band band = nla_type(attr);
5215 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5219 err = ieee80211_get_ratemask(wiphy->bands[band],
5222 &request->rates[band]);
5228 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5229 request->flags = nla_get_u32(
5230 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5231 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5232 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5233 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5234 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5241 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5243 request->wdev = wdev;
5244 request->wiphy = &rdev->wiphy;
5245 request->scan_start = jiffies;
5247 rdev->scan_req = request;
5248 err = rdev_scan(rdev, request);
5251 nl80211_send_scan_start(rdev, wdev);
5253 dev_hold(wdev->netdev);
5256 rdev->scan_req = NULL;
5264 static int nl80211_start_sched_scan(struct sk_buff *skb,
5265 struct genl_info *info)
5267 struct cfg80211_sched_scan_request *request;
5268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5269 struct net_device *dev = info->user_ptr[1];
5270 struct nlattr *attr;
5271 struct wiphy *wiphy;
5272 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5274 enum ieee80211_band band;
5276 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5278 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5279 !rdev->ops->sched_scan_start)
5282 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5285 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5288 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5292 wiphy = &rdev->wiphy;
5294 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5295 n_channels = validate_scan_freqs(
5296 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5302 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5303 if (wiphy->bands[band])
5304 n_channels += wiphy->bands[band]->n_channels;
5307 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5308 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5312 if (n_ssids > wiphy->max_sched_scan_ssids)
5315 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5316 nla_for_each_nested(attr,
5317 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5321 if (n_match_sets > wiphy->max_match_sets)
5324 if (info->attrs[NL80211_ATTR_IE])
5325 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5329 if (ie_len > wiphy->max_sched_scan_ie_len)
5332 if (rdev->sched_scan_req) {
5337 request = kzalloc(sizeof(*request)
5338 + sizeof(*request->ssids) * n_ssids
5339 + sizeof(*request->match_sets) * n_match_sets
5340 + sizeof(*request->channels) * n_channels
5341 + ie_len, GFP_KERNEL);
5348 request->ssids = (void *)&request->channels[n_channels];
5349 request->n_ssids = n_ssids;
5352 request->ie = (void *)(request->ssids + n_ssids);
5354 request->ie = (void *)(request->channels + n_channels);
5359 request->match_sets = (void *)(request->ie + ie_len);
5360 else if (request->ssids)
5361 request->match_sets =
5362 (void *)(request->ssids + n_ssids);
5364 request->match_sets =
5365 (void *)(request->channels + n_channels);
5367 request->n_match_sets = n_match_sets;
5370 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5371 /* user specified, bail out if channel not found */
5372 nla_for_each_nested(attr,
5373 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5375 struct ieee80211_channel *chan;
5377 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5384 /* ignore disabled channels */
5385 if (chan->flags & IEEE80211_CHAN_DISABLED)
5388 request->channels[i] = chan;
5393 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5395 if (!wiphy->bands[band])
5397 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5398 struct ieee80211_channel *chan;
5400 chan = &wiphy->bands[band]->channels[j];
5402 if (chan->flags & IEEE80211_CHAN_DISABLED)
5405 request->channels[i] = chan;
5416 request->n_channels = i;
5419 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5420 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5422 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5426 request->ssids[i].ssid_len = nla_len(attr);
5427 memcpy(request->ssids[i].ssid, nla_data(attr),
5434 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5435 nla_for_each_nested(attr,
5436 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5438 struct nlattr *ssid, *rssi;
5440 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5441 nla_data(attr), nla_len(attr),
5442 nl80211_match_policy);
5443 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5445 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5449 memcpy(request->match_sets[i].ssid.ssid,
5450 nla_data(ssid), nla_len(ssid));
5451 request->match_sets[i].ssid.ssid_len =
5454 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5456 request->rssi_thold = nla_get_u32(rssi);
5458 request->rssi_thold =
5459 NL80211_SCAN_RSSI_THOLD_OFF;
5464 if (info->attrs[NL80211_ATTR_IE]) {
5465 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5466 memcpy((void *)request->ie,
5467 nla_data(info->attrs[NL80211_ATTR_IE]),
5471 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5472 request->flags = nla_get_u32(
5473 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5474 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5475 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5476 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5477 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5484 request->wiphy = &rdev->wiphy;
5485 request->interval = interval;
5486 request->scan_start = jiffies;
5488 err = rdev_sched_scan_start(rdev, dev, request);
5490 rdev->sched_scan_req = request;
5491 nl80211_send_sched_scan(rdev, dev,
5492 NL80211_CMD_START_SCHED_SCAN);
5502 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5503 struct genl_info *info)
5505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5507 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5508 !rdev->ops->sched_scan_stop)
5511 return __cfg80211_stop_sched_scan(rdev, false);
5514 static int nl80211_start_radar_detection(struct sk_buff *skb,
5515 struct genl_info *info)
5517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5518 struct net_device *dev = info->user_ptr[1];
5519 struct wireless_dev *wdev = dev->ieee80211_ptr;
5520 struct cfg80211_chan_def chandef;
5523 err = nl80211_parse_chandef(rdev, info, &chandef);
5527 if (wdev->cac_started)
5530 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5537 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5540 if (!rdev->ops->start_radar_detection)
5543 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5544 chandef.chan, CHAN_MODE_SHARED,
5545 BIT(chandef.width));
5549 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5551 wdev->channel = chandef.chan;
5552 wdev->cac_started = true;
5553 wdev->cac_start_time = jiffies;
5558 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5560 struct cfg80211_registered_device *rdev,
5561 struct wireless_dev *wdev,
5562 struct cfg80211_internal_bss *intbss)
5564 struct cfg80211_bss *res = &intbss->pub;
5565 const struct cfg80211_bss_ies *ies;
5570 ASSERT_WDEV_LOCK(wdev);
5572 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5573 NL80211_CMD_NEW_SCAN_RESULTS);
5577 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5579 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5580 goto nla_put_failure;
5582 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5583 goto nla_put_failure;
5584 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5585 goto nla_put_failure;
5587 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5589 goto nla_put_failure;
5590 if ((!is_zero_ether_addr(res->bssid) &&
5591 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5592 goto nla_put_failure;
5595 ies = rcu_dereference(res->ies);
5597 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5598 goto fail_unlock_rcu;
5600 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5601 ies->len, ies->data))
5602 goto fail_unlock_rcu;
5604 ies = rcu_dereference(res->beacon_ies);
5606 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5607 goto fail_unlock_rcu;
5608 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5609 ies->len, ies->data))
5610 goto fail_unlock_rcu;
5614 if (res->beacon_interval &&
5615 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5616 goto nla_put_failure;
5617 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5618 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5619 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5620 jiffies_to_msecs(jiffies - intbss->ts)))
5621 goto nla_put_failure;
5623 switch (rdev->wiphy.signal_type) {
5624 case CFG80211_SIGNAL_TYPE_MBM:
5625 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5626 goto nla_put_failure;
5628 case CFG80211_SIGNAL_TYPE_UNSPEC:
5629 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5630 goto nla_put_failure;
5636 switch (wdev->iftype) {
5637 case NL80211_IFTYPE_P2P_CLIENT:
5638 case NL80211_IFTYPE_STATION:
5639 if (intbss == wdev->current_bss &&
5640 nla_put_u32(msg, NL80211_BSS_STATUS,
5641 NL80211_BSS_STATUS_ASSOCIATED))
5642 goto nla_put_failure;
5644 case NL80211_IFTYPE_ADHOC:
5645 if (intbss == wdev->current_bss &&
5646 nla_put_u32(msg, NL80211_BSS_STATUS,
5647 NL80211_BSS_STATUS_IBSS_JOINED))
5648 goto nla_put_failure;
5654 nla_nest_end(msg, bss);
5656 return genlmsg_end(msg, hdr);
5661 genlmsg_cancel(msg, hdr);
5665 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
5667 struct cfg80211_registered_device *rdev;
5668 struct cfg80211_internal_bss *scan;
5669 struct wireless_dev *wdev;
5670 int start = cb->args[2], idx = 0;
5673 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5678 spin_lock_bh(&rdev->bss_lock);
5679 cfg80211_bss_expire(rdev);
5681 cb->seq = rdev->bss_generation;
5683 list_for_each_entry(scan, &rdev->bss_list, list) {
5686 if (nl80211_send_bss(skb, cb,
5687 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5688 rdev, wdev, scan) < 0) {
5694 spin_unlock_bh(&rdev->bss_lock);
5698 nl80211_finish_wdev_dump(rdev);
5703 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5704 int flags, struct net_device *dev,
5705 struct survey_info *survey)
5708 struct nlattr *infoattr;
5710 hdr = nl80211hdr_put(msg, portid, seq, flags,
5711 NL80211_CMD_NEW_SURVEY_RESULTS);
5715 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5716 goto nla_put_failure;
5718 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5720 goto nla_put_failure;
5722 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5723 survey->channel->center_freq))
5724 goto nla_put_failure;
5726 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5727 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5728 goto nla_put_failure;
5729 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5730 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5731 goto nla_put_failure;
5732 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5733 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5734 survey->channel_time))
5735 goto nla_put_failure;
5736 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5737 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5738 survey->channel_time_busy))
5739 goto nla_put_failure;
5740 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5741 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5742 survey->channel_time_ext_busy))
5743 goto nla_put_failure;
5744 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5745 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5746 survey->channel_time_rx))
5747 goto nla_put_failure;
5748 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5749 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5750 survey->channel_time_tx))
5751 goto nla_put_failure;
5753 nla_nest_end(msg, infoattr);
5755 return genlmsg_end(msg, hdr);
5758 genlmsg_cancel(msg, hdr);
5762 static int nl80211_dump_survey(struct sk_buff *skb,
5763 struct netlink_callback *cb)
5765 struct survey_info survey;
5766 struct cfg80211_registered_device *dev;
5767 struct wireless_dev *wdev;
5768 int survey_idx = cb->args[2];
5771 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
5775 if (!wdev->netdev) {
5780 if (!dev->ops->dump_survey) {
5786 struct ieee80211_channel *chan;
5788 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
5794 /* Survey without a channel doesn't make sense */
5795 if (!survey.channel) {
5800 chan = ieee80211_get_channel(&dev->wiphy,
5801 survey.channel->center_freq);
5802 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5807 if (nl80211_send_survey(skb,
5808 NETLINK_CB(cb->skb).portid,
5809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5810 wdev->netdev, &survey) < 0)
5816 cb->args[2] = survey_idx;
5819 nl80211_finish_wdev_dump(dev);
5823 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5825 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5826 NL80211_WPA_VERSION_2));
5829 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5832 struct net_device *dev = info->user_ptr[1];
5833 struct ieee80211_channel *chan;
5834 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5835 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5836 enum nl80211_auth_type auth_type;
5837 struct key_parse key;
5838 bool local_state_change;
5840 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5843 if (!info->attrs[NL80211_ATTR_MAC])
5846 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5849 if (!info->attrs[NL80211_ATTR_SSID])
5852 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5855 err = nl80211_parse_key(info, &key);
5860 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5862 if (!key.p.key || !key.p.key_len)
5864 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5865 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5866 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5867 key.p.key_len != WLAN_KEY_LEN_WEP104))
5879 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5880 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5889 if (!rdev->ops->auth)
5892 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5893 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5896 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5897 chan = ieee80211_get_channel(&rdev->wiphy,
5898 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5899 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5902 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5903 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5905 if (info->attrs[NL80211_ATTR_IE]) {
5906 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5907 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5910 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5911 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5914 if (auth_type == NL80211_AUTHTYPE_SAE &&
5915 !info->attrs[NL80211_ATTR_SAE_DATA])
5918 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5919 if (auth_type != NL80211_AUTHTYPE_SAE)
5921 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5922 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5923 /* need to include at least Auth Transaction and Status Code */
5924 if (sae_data_len < 4)
5928 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5931 * Since we no longer track auth state, ignore
5932 * requests to only change local state.
5934 if (local_state_change)
5937 wdev_lock(dev->ieee80211_ptr);
5938 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5939 ssid, ssid_len, ie, ie_len,
5940 key.p.key, key.p.key_len, key.idx,
5941 sae_data, sae_data_len);
5942 wdev_unlock(dev->ieee80211_ptr);
5946 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5947 struct genl_info *info,
5948 struct cfg80211_crypto_settings *settings,
5951 memset(settings, 0, sizeof(*settings));
5953 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5955 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5957 proto = nla_get_u16(
5958 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5959 settings->control_port_ethertype = cpu_to_be16(proto);
5960 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5963 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5964 settings->control_port_no_encrypt = true;
5966 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5968 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5972 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5973 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5974 settings->n_ciphers_pairwise = len / sizeof(u32);
5976 if (len % sizeof(u32))
5979 if (settings->n_ciphers_pairwise > cipher_limit)
5982 memcpy(settings->ciphers_pairwise, data, len);
5984 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5985 if (!cfg80211_supported_cipher_suite(
5987 settings->ciphers_pairwise[i]))
5991 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5992 settings->cipher_group =
5993 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5994 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5995 settings->cipher_group))
5999 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6000 settings->wpa_versions =
6001 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6002 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6006 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6010 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6011 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6012 settings->n_akm_suites = len / sizeof(u32);
6014 if (len % sizeof(u32))
6017 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6020 memcpy(settings->akm_suites, data, len);
6026 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6029 struct net_device *dev = info->user_ptr[1];
6030 struct ieee80211_channel *chan;
6031 struct cfg80211_assoc_request req = {};
6032 const u8 *bssid, *ssid;
6033 int err, ssid_len = 0;
6035 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6038 if (!info->attrs[NL80211_ATTR_MAC] ||
6039 !info->attrs[NL80211_ATTR_SSID] ||
6040 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6043 if (!rdev->ops->assoc)
6046 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6047 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6050 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6052 chan = ieee80211_get_channel(&rdev->wiphy,
6053 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6054 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6057 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6058 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6060 if (info->attrs[NL80211_ATTR_IE]) {
6061 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6062 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6065 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6066 enum nl80211_mfp mfp =
6067 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6068 if (mfp == NL80211_MFP_REQUIRED)
6070 else if (mfp != NL80211_MFP_NO)
6074 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6075 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6077 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6078 req.flags |= ASSOC_REQ_DISABLE_HT;
6080 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6081 memcpy(&req.ht_capa_mask,
6082 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6083 sizeof(req.ht_capa_mask));
6085 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6086 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6088 memcpy(&req.ht_capa,
6089 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6090 sizeof(req.ht_capa));
6093 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6094 req.flags |= ASSOC_REQ_DISABLE_VHT;
6096 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6097 memcpy(&req.vht_capa_mask,
6098 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6099 sizeof(req.vht_capa_mask));
6101 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6102 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6104 memcpy(&req.vht_capa,
6105 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6106 sizeof(req.vht_capa));
6109 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6111 wdev_lock(dev->ieee80211_ptr);
6112 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6113 ssid, ssid_len, &req);
6114 wdev_unlock(dev->ieee80211_ptr);
6120 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6123 struct net_device *dev = info->user_ptr[1];
6124 const u8 *ie = NULL, *bssid;
6125 int ie_len = 0, err;
6127 bool local_state_change;
6129 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6132 if (!info->attrs[NL80211_ATTR_MAC])
6135 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6138 if (!rdev->ops->deauth)
6141 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6142 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6145 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6147 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6148 if (reason_code == 0) {
6149 /* Reason Code 0 is reserved */
6153 if (info->attrs[NL80211_ATTR_IE]) {
6154 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6155 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6158 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6160 wdev_lock(dev->ieee80211_ptr);
6161 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6162 local_state_change);
6163 wdev_unlock(dev->ieee80211_ptr);
6167 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6169 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6170 struct net_device *dev = info->user_ptr[1];
6171 const u8 *ie = NULL, *bssid;
6172 int ie_len = 0, err;
6174 bool local_state_change;
6176 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6179 if (!info->attrs[NL80211_ATTR_MAC])
6182 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6185 if (!rdev->ops->disassoc)
6188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6192 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6194 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6195 if (reason_code == 0) {
6196 /* Reason Code 0 is reserved */
6200 if (info->attrs[NL80211_ATTR_IE]) {
6201 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6202 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6205 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6207 wdev_lock(dev->ieee80211_ptr);
6208 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6209 local_state_change);
6210 wdev_unlock(dev->ieee80211_ptr);
6215 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6216 int mcast_rate[IEEE80211_NUM_BANDS],
6219 struct wiphy *wiphy = &rdev->wiphy;
6223 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6224 struct ieee80211_supported_band *sband;
6226 sband = wiphy->bands[band];
6230 for (i = 0; i < sband->n_bitrates; i++) {
6231 if (sband->bitrates[i].bitrate == rateval) {
6232 mcast_rate[band] = i + 1;
6242 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6244 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6245 struct net_device *dev = info->user_ptr[1];
6246 struct cfg80211_ibss_params ibss;
6247 struct wiphy *wiphy;
6248 struct cfg80211_cached_keys *connkeys = NULL;
6251 memset(&ibss, 0, sizeof(ibss));
6253 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6256 if (!info->attrs[NL80211_ATTR_SSID] ||
6257 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6260 ibss.beacon_interval = 100;
6262 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6263 ibss.beacon_interval =
6264 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6265 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6269 if (!rdev->ops->join_ibss)
6272 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6275 wiphy = &rdev->wiphy;
6277 if (info->attrs[NL80211_ATTR_MAC]) {
6278 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6280 if (!is_valid_ether_addr(ibss.bssid))
6283 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6284 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6286 if (info->attrs[NL80211_ATTR_IE]) {
6287 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6288 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6291 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6295 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6298 switch (ibss.chandef.width) {
6299 case NL80211_CHAN_WIDTH_20_NOHT:
6301 case NL80211_CHAN_WIDTH_20:
6302 case NL80211_CHAN_WIDTH_40:
6303 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6309 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6310 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6312 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6314 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6316 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6317 struct ieee80211_supported_band *sband =
6318 wiphy->bands[ibss.chandef.chan->band];
6320 err = ieee80211_get_ratemask(sband, rates, n_rates,
6326 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6327 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6328 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6331 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6334 connkeys = nl80211_parse_connkeys(rdev,
6335 info->attrs[NL80211_ATTR_KEYS],
6337 if (IS_ERR(connkeys))
6338 return PTR_ERR(connkeys);
6340 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6348 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6350 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6356 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6359 struct net_device *dev = info->user_ptr[1];
6361 if (!rdev->ops->leave_ibss)
6364 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6367 return cfg80211_leave_ibss(rdev, dev, false);
6370 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6372 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6373 struct net_device *dev = info->user_ptr[1];
6374 int mcast_rate[IEEE80211_NUM_BANDS];
6378 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6379 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6382 if (!rdev->ops->set_mcast_rate)
6385 memset(mcast_rate, 0, sizeof(mcast_rate));
6387 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6390 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6391 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6394 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6400 #ifdef CONFIG_NL80211_TESTMODE
6401 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6405 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6410 if (!info->attrs[NL80211_ATTR_TESTDATA])
6414 if (rdev->ops->testmode_cmd) {
6415 rdev->testmode_info = info;
6416 err = rdev_testmode_cmd(rdev,
6417 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6418 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6419 rdev->testmode_info = NULL;
6425 static int nl80211_testmode_dump(struct sk_buff *skb,
6426 struct netlink_callback *cb)
6428 struct cfg80211_registered_device *rdev;
6438 * 0 is a valid index, but not valid for args[0],
6439 * so we need to offset by 1.
6441 phy_idx = cb->args[0] - 1;
6443 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6444 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6449 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6450 nl80211_fam.attrbuf);
6452 err = PTR_ERR(rdev);
6455 phy_idx = rdev->wiphy_idx;
6458 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6460 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6464 data = nla_data((void *)cb->args[1]);
6465 data_len = nla_len((void *)cb->args[1]);
6468 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6474 if (!rdev->ops->testmode_dump) {
6480 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6481 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6482 NL80211_CMD_TESTMODE);
6483 struct nlattr *tmdata;
6485 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6486 genlmsg_cancel(skb, hdr);
6490 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6492 genlmsg_cancel(skb, hdr);
6495 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6496 nla_nest_end(skb, tmdata);
6498 if (err == -ENOBUFS || err == -ENOENT) {
6499 genlmsg_cancel(skb, hdr);
6502 genlmsg_cancel(skb, hdr);
6506 genlmsg_end(skb, hdr);
6511 cb->args[0] = phy_idx + 1;
6517 static struct sk_buff *
6518 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6519 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6521 struct sk_buff *skb;
6523 struct nlattr *data;
6525 skb = nlmsg_new(approxlen + 100, gfp);
6529 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6535 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6536 goto nla_put_failure;
6537 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6539 ((void **)skb->cb)[0] = rdev;
6540 ((void **)skb->cb)[1] = hdr;
6541 ((void **)skb->cb)[2] = data;
6550 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6553 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6555 if (WARN_ON(!rdev->testmode_info))
6558 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6559 rdev->testmode_info->snd_portid,
6560 rdev->testmode_info->snd_seq,
6563 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6565 int cfg80211_testmode_reply(struct sk_buff *skb)
6567 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6568 void *hdr = ((void **)skb->cb)[1];
6569 struct nlattr *data = ((void **)skb->cb)[2];
6571 if (WARN_ON(!rdev->testmode_info)) {
6576 nla_nest_end(skb, data);
6577 genlmsg_end(skb, hdr);
6578 return genlmsg_reply(skb, rdev->testmode_info);
6580 EXPORT_SYMBOL(cfg80211_testmode_reply);
6582 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6583 int approxlen, gfp_t gfp)
6585 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6587 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6589 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6591 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6593 void *hdr = ((void **)skb->cb)[1];
6594 struct nlattr *data = ((void **)skb->cb)[2];
6596 nla_nest_end(skb, data);
6597 genlmsg_end(skb, hdr);
6598 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6600 EXPORT_SYMBOL(cfg80211_testmode_event);
6603 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6606 struct net_device *dev = info->user_ptr[1];
6607 struct cfg80211_connect_params connect;
6608 struct wiphy *wiphy;
6609 struct cfg80211_cached_keys *connkeys = NULL;
6612 memset(&connect, 0, sizeof(connect));
6614 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6617 if (!info->attrs[NL80211_ATTR_SSID] ||
6618 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6621 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6623 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6624 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6625 NL80211_CMD_CONNECT))
6628 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6630 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6632 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6633 NL80211_MAX_NR_CIPHER_SUITES);
6637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6638 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6641 wiphy = &rdev->wiphy;
6643 connect.bg_scan_period = -1;
6644 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6645 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6646 connect.bg_scan_period =
6647 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6650 if (info->attrs[NL80211_ATTR_MAC])
6651 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6652 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6653 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6655 if (info->attrs[NL80211_ATTR_IE]) {
6656 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6657 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6660 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6661 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6662 if (connect.mfp != NL80211_MFP_REQUIRED &&
6663 connect.mfp != NL80211_MFP_NO)
6666 connect.mfp = NL80211_MFP_NO;
6669 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6671 ieee80211_get_channel(wiphy,
6672 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6673 if (!connect.channel ||
6674 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6678 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6679 connkeys = nl80211_parse_connkeys(rdev,
6680 info->attrs[NL80211_ATTR_KEYS], NULL);
6681 if (IS_ERR(connkeys))
6682 return PTR_ERR(connkeys);
6685 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6686 connect.flags |= ASSOC_REQ_DISABLE_HT;
6688 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6689 memcpy(&connect.ht_capa_mask,
6690 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6691 sizeof(connect.ht_capa_mask));
6693 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6694 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6698 memcpy(&connect.ht_capa,
6699 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6700 sizeof(connect.ht_capa));
6703 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6704 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6706 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6707 memcpy(&connect.vht_capa_mask,
6708 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6709 sizeof(connect.vht_capa_mask));
6711 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6712 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6716 memcpy(&connect.vht_capa,
6717 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6718 sizeof(connect.vht_capa));
6721 wdev_lock(dev->ieee80211_ptr);
6722 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6723 wdev_unlock(dev->ieee80211_ptr);
6729 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6731 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6732 struct net_device *dev = info->user_ptr[1];
6736 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6737 reason = WLAN_REASON_DEAUTH_LEAVING;
6739 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6744 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6745 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6748 wdev_lock(dev->ieee80211_ptr);
6749 ret = cfg80211_disconnect(rdev, dev, reason, true);
6750 wdev_unlock(dev->ieee80211_ptr);
6754 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6756 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6761 if (!info->attrs[NL80211_ATTR_PID])
6764 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6766 net = get_net_ns_by_pid(pid);
6768 return PTR_ERR(net);
6772 /* check if anything to do */
6773 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6774 err = cfg80211_switch_netns(rdev, net);
6780 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6782 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6783 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6784 struct cfg80211_pmksa *pmksa) = NULL;
6785 struct net_device *dev = info->user_ptr[1];
6786 struct cfg80211_pmksa pmksa;
6788 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6790 if (!info->attrs[NL80211_ATTR_MAC])
6793 if (!info->attrs[NL80211_ATTR_PMKID])
6796 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6797 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6799 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6800 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6803 switch (info->genlhdr->cmd) {
6804 case NL80211_CMD_SET_PMKSA:
6805 rdev_ops = rdev->ops->set_pmksa;
6807 case NL80211_CMD_DEL_PMKSA:
6808 rdev_ops = rdev->ops->del_pmksa;
6818 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6821 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6824 struct net_device *dev = info->user_ptr[1];
6826 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6827 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6830 if (!rdev->ops->flush_pmksa)
6833 return rdev_flush_pmksa(rdev, dev);
6836 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6839 struct net_device *dev = info->user_ptr[1];
6840 u8 action_code, dialog_token;
6844 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6845 !rdev->ops->tdls_mgmt)
6848 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6849 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6850 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6851 !info->attrs[NL80211_ATTR_IE] ||
6852 !info->attrs[NL80211_ATTR_MAC])
6855 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6856 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6857 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6858 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6860 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6861 dialog_token, status_code,
6862 nla_data(info->attrs[NL80211_ATTR_IE]),
6863 nla_len(info->attrs[NL80211_ATTR_IE]));
6866 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6869 struct net_device *dev = info->user_ptr[1];
6870 enum nl80211_tdls_operation operation;
6873 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6874 !rdev->ops->tdls_oper)
6877 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6878 !info->attrs[NL80211_ATTR_MAC])
6881 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6882 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6884 return rdev_tdls_oper(rdev, dev, peer, operation);
6887 static int nl80211_remain_on_channel(struct sk_buff *skb,
6888 struct genl_info *info)
6890 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6891 struct wireless_dev *wdev = info->user_ptr[1];
6892 struct cfg80211_chan_def chandef;
6893 struct sk_buff *msg;
6899 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6900 !info->attrs[NL80211_ATTR_DURATION])
6903 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6905 if (!rdev->ops->remain_on_channel ||
6906 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6910 * We should be on that channel for at least a minimum amount of
6911 * time (10ms) but no longer than the driver supports.
6913 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6914 duration > rdev->wiphy.max_remain_on_channel_duration)
6917 err = nl80211_parse_chandef(rdev, info, &chandef);
6921 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6925 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6926 NL80211_CMD_REMAIN_ON_CHANNEL);
6933 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6939 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6940 goto nla_put_failure;
6942 genlmsg_end(msg, hdr);
6944 return genlmsg_reply(msg, info);
6953 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6954 struct genl_info *info)
6956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6957 struct wireless_dev *wdev = info->user_ptr[1];
6960 if (!info->attrs[NL80211_ATTR_COOKIE])
6963 if (!rdev->ops->cancel_remain_on_channel)
6966 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6968 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6971 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6972 u8 *rates, u8 rates_len)
6977 for (i = 0; i < rates_len; i++) {
6978 int rate = (rates[i] & 0x7f) * 5;
6980 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6981 struct ieee80211_rate *srate =
6982 &sband->bitrates[ridx];
6983 if (rate == srate->bitrate) {
6988 if (ridx == sband->n_bitrates)
6989 return 0; /* rate not found */
6995 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6996 u8 *rates, u8 rates_len,
6997 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7001 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7003 for (i = 0; i < rates_len; i++) {
7006 ridx = rates[i] / 8;
7007 rbit = BIT(rates[i] % 8);
7009 /* check validity */
7010 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7013 /* check availability */
7014 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7023 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7024 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7025 .len = NL80211_MAX_SUPP_RATES },
7026 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7027 .len = NL80211_MAX_SUPP_HT_RATES },
7030 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7031 struct genl_info *info)
7033 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7035 struct cfg80211_bitrate_mask mask;
7037 struct net_device *dev = info->user_ptr[1];
7038 struct nlattr *tx_rates;
7039 struct ieee80211_supported_band *sband;
7041 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7044 if (!rdev->ops->set_bitrate_mask)
7047 memset(&mask, 0, sizeof(mask));
7048 /* Default to all rates enabled */
7049 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7050 sband = rdev->wiphy.bands[i];
7051 mask.control[i].legacy =
7052 sband ? (1 << sband->n_bitrates) - 1 : 0;
7054 memcpy(mask.control[i].mcs,
7055 sband->ht_cap.mcs.rx_mask,
7056 sizeof(mask.control[i].mcs));
7058 memset(mask.control[i].mcs, 0,
7059 sizeof(mask.control[i].mcs));
7063 * The nested attribute uses enum nl80211_band as the index. This maps
7064 * directly to the enum ieee80211_band values used in cfg80211.
7066 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7067 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7069 enum ieee80211_band band = nla_type(tx_rates);
7070 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7072 sband = rdev->wiphy.bands[band];
7075 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7076 nla_len(tx_rates), nl80211_txattr_policy);
7077 if (tb[NL80211_TXRATE_LEGACY]) {
7078 mask.control[band].legacy = rateset_to_mask(
7080 nla_data(tb[NL80211_TXRATE_LEGACY]),
7081 nla_len(tb[NL80211_TXRATE_LEGACY]));
7082 if ((mask.control[band].legacy == 0) &&
7083 nla_len(tb[NL80211_TXRATE_LEGACY]))
7086 if (tb[NL80211_TXRATE_MCS]) {
7087 if (!ht_rateset_to_mask(
7089 nla_data(tb[NL80211_TXRATE_MCS]),
7090 nla_len(tb[NL80211_TXRATE_MCS]),
7091 mask.control[band].mcs))
7095 if (mask.control[band].legacy == 0) {
7096 /* don't allow empty legacy rates if HT
7097 * is not even supported. */
7098 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7101 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7102 if (mask.control[band].mcs[i])
7105 /* legacy and mcs rates may not be both empty */
7106 if (i == IEEE80211_HT_MCS_MASK_LEN)
7111 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7114 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7117 struct wireless_dev *wdev = info->user_ptr[1];
7118 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7120 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7123 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7124 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7126 switch (wdev->iftype) {
7127 case NL80211_IFTYPE_STATION:
7128 case NL80211_IFTYPE_ADHOC:
7129 case NL80211_IFTYPE_P2P_CLIENT:
7130 case NL80211_IFTYPE_AP:
7131 case NL80211_IFTYPE_AP_VLAN:
7132 case NL80211_IFTYPE_MESH_POINT:
7133 case NL80211_IFTYPE_P2P_GO:
7134 case NL80211_IFTYPE_P2P_DEVICE:
7140 /* not much point in registering if we can't reply */
7141 if (!rdev->ops->mgmt_tx)
7144 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7145 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7146 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7149 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7151 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7152 struct wireless_dev *wdev = info->user_ptr[1];
7153 struct cfg80211_chan_def chandef;
7157 struct sk_buff *msg = NULL;
7158 unsigned int wait = 0;
7159 bool offchan, no_cck, dont_wait_for_ack;
7161 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
7163 if (!info->attrs[NL80211_ATTR_FRAME])
7166 if (!rdev->ops->mgmt_tx)
7169 switch (wdev->iftype) {
7170 case NL80211_IFTYPE_P2P_DEVICE:
7171 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7173 case NL80211_IFTYPE_STATION:
7174 case NL80211_IFTYPE_ADHOC:
7175 case NL80211_IFTYPE_P2P_CLIENT:
7176 case NL80211_IFTYPE_AP:
7177 case NL80211_IFTYPE_AP_VLAN:
7178 case NL80211_IFTYPE_MESH_POINT:
7179 case NL80211_IFTYPE_P2P_GO:
7185 if (info->attrs[NL80211_ATTR_DURATION]) {
7186 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7188 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7191 * We should wait on the channel for at least a minimum amount
7192 * of time (10ms) but no longer than the driver supports.
7194 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7195 wait > rdev->wiphy.max_remain_on_channel_duration)
7200 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7202 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7205 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7207 /* get the channel if any has been specified, otherwise pass NULL to
7208 * the driver. The latter will use the current one
7210 chandef.chan = NULL;
7211 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7212 err = nl80211_parse_chandef(rdev, info, &chandef);
7217 if (!chandef.chan && offchan)
7220 if (!dont_wait_for_ack) {
7221 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7225 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7234 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
7235 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7236 nla_len(info->attrs[NL80211_ATTR_FRAME]),
7237 no_cck, dont_wait_for_ack, &cookie);
7242 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7243 goto nla_put_failure;
7245 genlmsg_end(msg, hdr);
7246 return genlmsg_reply(msg, info);
7258 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7260 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7261 struct wireless_dev *wdev = info->user_ptr[1];
7264 if (!info->attrs[NL80211_ATTR_COOKIE])
7267 if (!rdev->ops->mgmt_tx_cancel_wait)
7270 switch (wdev->iftype) {
7271 case NL80211_IFTYPE_STATION:
7272 case NL80211_IFTYPE_ADHOC:
7273 case NL80211_IFTYPE_P2P_CLIENT:
7274 case NL80211_IFTYPE_AP:
7275 case NL80211_IFTYPE_AP_VLAN:
7276 case NL80211_IFTYPE_P2P_GO:
7277 case NL80211_IFTYPE_P2P_DEVICE:
7283 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7285 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7288 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7291 struct wireless_dev *wdev;
7292 struct net_device *dev = info->user_ptr[1];
7297 if (!info->attrs[NL80211_ATTR_PS_STATE])
7300 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7302 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7305 wdev = dev->ieee80211_ptr;
7307 if (!rdev->ops->set_power_mgmt)
7310 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7312 if (state == wdev->ps)
7315 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7321 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7323 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7324 enum nl80211_ps_state ps_state;
7325 struct wireless_dev *wdev;
7326 struct net_device *dev = info->user_ptr[1];
7327 struct sk_buff *msg;
7331 wdev = dev->ieee80211_ptr;
7333 if (!rdev->ops->set_power_mgmt)
7336 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7340 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7341 NL80211_CMD_GET_POWER_SAVE);
7348 ps_state = NL80211_PS_ENABLED;
7350 ps_state = NL80211_PS_DISABLED;
7352 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7353 goto nla_put_failure;
7355 genlmsg_end(msg, hdr);
7356 return genlmsg_reply(msg, info);
7365 static struct nla_policy
7366 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7367 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7368 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7369 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7370 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7371 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7372 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7375 static int nl80211_set_cqm_txe(struct genl_info *info,
7376 u32 rate, u32 pkts, u32 intvl)
7378 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7379 struct wireless_dev *wdev;
7380 struct net_device *dev = info->user_ptr[1];
7382 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7385 wdev = dev->ieee80211_ptr;
7387 if (!rdev->ops->set_cqm_txe_config)
7390 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7391 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7394 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7397 static int nl80211_set_cqm_rssi(struct genl_info *info,
7398 s32 threshold, u32 hysteresis)
7400 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7401 struct wireless_dev *wdev;
7402 struct net_device *dev = info->user_ptr[1];
7407 wdev = dev->ieee80211_ptr;
7409 if (!rdev->ops->set_cqm_rssi_config)
7412 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7413 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7416 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7419 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7421 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7425 cqm = info->attrs[NL80211_ATTR_CQM];
7431 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7432 nl80211_attr_cqm_policy);
7436 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7437 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7440 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7441 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7442 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
7443 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7444 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7445 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7446 u32 rate, pkts, intvl;
7447 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7448 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7449 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7450 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7458 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7460 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7461 struct net_device *dev = info->user_ptr[1];
7462 struct mesh_config cfg;
7463 struct mesh_setup setup;
7466 /* start with default */
7467 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7468 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7470 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7471 /* and parse parameters if given */
7472 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7477 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7478 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7481 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7482 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7484 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7485 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7486 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7489 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7490 setup.beacon_interval =
7491 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7492 if (setup.beacon_interval < 10 ||
7493 setup.beacon_interval > 10000)
7497 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7499 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7500 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7504 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7505 /* parse additional setup parameters if given */
7506 err = nl80211_parse_mesh_setup(info, &setup);
7512 cfg.auto_open_plinks = false;
7514 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7515 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7519 /* cfg80211_join_mesh() will sort it out */
7520 setup.chandef.chan = NULL;
7523 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7524 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7526 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7527 struct ieee80211_supported_band *sband;
7529 if (!setup.chandef.chan)
7532 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7534 err = ieee80211_get_ratemask(sband, rates, n_rates,
7535 &setup.basic_rates);
7540 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7543 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7546 struct net_device *dev = info->user_ptr[1];
7548 return cfg80211_leave_mesh(rdev, dev);
7552 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7553 struct cfg80211_registered_device *rdev)
7555 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
7556 struct nlattr *nl_pats, *nl_pat;
7559 if (!wowlan->n_patterns)
7562 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7566 for (i = 0; i < wowlan->n_patterns; i++) {
7567 nl_pat = nla_nest_start(msg, i + 1);
7570 pat_len = wowlan->patterns[i].pattern_len;
7571 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7572 DIV_ROUND_UP(pat_len, 8),
7573 wowlan->patterns[i].mask) ||
7574 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7575 pat_len, wowlan->patterns[i].pattern) ||
7576 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7577 wowlan->patterns[i].pkt_offset))
7579 nla_nest_end(msg, nl_pat);
7581 nla_nest_end(msg, nl_pats);
7586 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7587 struct cfg80211_wowlan_tcp *tcp)
7589 struct nlattr *nl_tcp;
7594 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7598 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7599 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7600 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7601 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7602 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7603 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7604 tcp->payload_len, tcp->payload) ||
7605 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7606 tcp->data_interval) ||
7607 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7608 tcp->wake_len, tcp->wake_data) ||
7609 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7610 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7613 if (tcp->payload_seq.len &&
7614 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7615 sizeof(tcp->payload_seq), &tcp->payload_seq))
7618 if (tcp->payload_tok.len &&
7619 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7620 sizeof(tcp->payload_tok) + tcp->tokens_size,
7624 nla_nest_end(msg, nl_tcp);
7629 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7632 struct sk_buff *msg;
7634 u32 size = NLMSG_DEFAULT_SIZE;
7636 if (!rdev->wiphy.wowlan)
7639 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
7640 /* adjust size to have room for all the data */
7641 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7642 rdev->wiphy.wowlan_config->tcp->payload_len +
7643 rdev->wiphy.wowlan_config->tcp->wake_len +
7644 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
7647 msg = nlmsg_new(size, GFP_KERNEL);
7651 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7652 NL80211_CMD_GET_WOWLAN);
7654 goto nla_put_failure;
7656 if (rdev->wiphy.wowlan_config) {
7657 struct nlattr *nl_wowlan;
7659 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7661 goto nla_put_failure;
7663 if ((rdev->wiphy.wowlan_config->any &&
7664 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7665 (rdev->wiphy.wowlan_config->disconnect &&
7666 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7667 (rdev->wiphy.wowlan_config->magic_pkt &&
7668 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7669 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
7670 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7671 (rdev->wiphy.wowlan_config->eap_identity_req &&
7672 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7673 (rdev->wiphy.wowlan_config->four_way_handshake &&
7674 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7675 (rdev->wiphy.wowlan_config->rfkill_release &&
7676 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7677 goto nla_put_failure;
7679 if (nl80211_send_wowlan_patterns(msg, rdev))
7680 goto nla_put_failure;
7682 if (nl80211_send_wowlan_tcp(msg,
7683 rdev->wiphy.wowlan_config->tcp))
7684 goto nla_put_failure;
7686 nla_nest_end(msg, nl_wowlan);
7689 genlmsg_end(msg, hdr);
7690 return genlmsg_reply(msg, info);
7697 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7698 struct nlattr *attr,
7699 struct cfg80211_wowlan *trig)
7701 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7702 struct cfg80211_wowlan_tcp *cfg;
7703 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7704 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7706 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7709 if (!rdev->wiphy.wowlan->tcp)
7712 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7713 nla_data(attr), nla_len(attr),
7714 nl80211_wowlan_tcp_policy);
7718 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7719 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7720 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7721 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7722 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7723 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7724 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7725 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7728 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7729 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
7732 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7733 rdev->wiphy.wowlan->tcp->data_interval_max ||
7734 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
7737 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7738 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
7741 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7742 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7745 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7746 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7748 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7749 tokens_size = tokln - sizeof(*tok);
7751 if (!tok->len || tokens_size % tok->len)
7753 if (!rdev->wiphy.wowlan->tcp->tok)
7755 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
7757 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
7759 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
7761 if (tok->offset + tok->len > data_size)
7765 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7766 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7767 if (!rdev->wiphy.wowlan->tcp->seq)
7769 if (seq->len == 0 || seq->len > 4)
7771 if (seq->len + seq->offset > data_size)
7775 size = sizeof(*cfg);
7777 size += wake_size + wake_mask_size;
7778 size += tokens_size;
7780 cfg = kzalloc(size, GFP_KERNEL);
7783 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7784 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7785 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7787 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7788 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7792 /* allocate a socket and port for it and use it */
7793 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7794 IPPROTO_TCP, &cfg->sock, 1);
7799 if (inet_csk_get_port(cfg->sock->sk, port)) {
7800 sock_release(cfg->sock);
7804 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7810 cfg->src_port = port;
7813 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7814 cfg->payload_len = data_size;
7815 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7816 memcpy((void *)cfg->payload,
7817 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7820 cfg->payload_seq = *seq;
7821 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7822 cfg->wake_len = wake_size;
7823 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7824 memcpy((void *)cfg->wake_data,
7825 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7827 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7828 data_size + wake_size;
7829 memcpy((void *)cfg->wake_mask,
7830 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7833 cfg->tokens_size = tokens_size;
7834 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7842 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7844 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7845 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7846 struct cfg80211_wowlan new_triggers = {};
7847 struct cfg80211_wowlan *ntrig;
7848 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
7850 bool prev_enabled = rdev->wiphy.wowlan_config;
7855 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7856 cfg80211_rdev_free_wowlan(rdev);
7857 rdev->wiphy.wowlan_config = NULL;
7861 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7862 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7863 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7864 nl80211_wowlan_policy);
7868 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7869 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7871 new_triggers.any = true;
7874 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7875 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7877 new_triggers.disconnect = true;
7880 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7881 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7883 new_triggers.magic_pkt = true;
7886 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7889 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7890 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7892 new_triggers.gtk_rekey_failure = true;
7895 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7896 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7898 new_triggers.eap_identity_req = true;
7901 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7902 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7904 new_triggers.four_way_handshake = true;
7907 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7908 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7910 new_triggers.rfkill_release = true;
7913 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7916 int rem, pat_len, mask_len, pkt_offset;
7917 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7919 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7922 if (n_patterns > wowlan->n_patterns)
7925 new_triggers.patterns = kcalloc(n_patterns,
7926 sizeof(new_triggers.patterns[0]),
7928 if (!new_triggers.patterns)
7931 new_triggers.n_patterns = n_patterns;
7934 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7936 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7937 nla_data(pat), nla_len(pat), NULL);
7939 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7940 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7942 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7943 mask_len = DIV_ROUND_UP(pat_len, 8);
7944 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7947 if (pat_len > wowlan->pattern_max_len ||
7948 pat_len < wowlan->pattern_min_len)
7951 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7954 pkt_offset = nla_get_u32(
7955 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7956 if (pkt_offset > wowlan->max_pkt_offset)
7958 new_triggers.patterns[i].pkt_offset = pkt_offset;
7960 new_triggers.patterns[i].mask =
7961 kmalloc(mask_len + pat_len, GFP_KERNEL);
7962 if (!new_triggers.patterns[i].mask) {
7966 new_triggers.patterns[i].pattern =
7967 new_triggers.patterns[i].mask + mask_len;
7968 memcpy(new_triggers.patterns[i].mask,
7969 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7971 new_triggers.patterns[i].pattern_len = pat_len;
7972 memcpy(new_triggers.patterns[i].pattern,
7973 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7979 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7980 err = nl80211_parse_wowlan_tcp(
7981 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7987 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7992 cfg80211_rdev_free_wowlan(rdev);
7993 rdev->wiphy.wowlan_config = ntrig;
7996 if (rdev->ops->set_wakeup &&
7997 prev_enabled != !!rdev->wiphy.wowlan_config)
7998 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8002 for (i = 0; i < new_triggers.n_patterns; i++)
8003 kfree(new_triggers.patterns[i].mask);
8004 kfree(new_triggers.patterns);
8005 if (new_triggers.tcp && new_triggers.tcp->sock)
8006 sock_release(new_triggers.tcp->sock);
8007 kfree(new_triggers.tcp);
8012 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8015 struct net_device *dev = info->user_ptr[1];
8016 struct wireless_dev *wdev = dev->ieee80211_ptr;
8017 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8018 struct cfg80211_gtk_rekey_data rekey_data;
8021 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8024 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8025 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8026 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8027 nl80211_rekey_policy);
8031 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8033 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8035 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8038 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8040 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8042 memcpy(rekey_data.replay_ctr,
8043 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8044 NL80211_REPLAY_CTR_LEN);
8047 if (!wdev->current_bss) {
8052 if (!rdev->ops->set_rekey_data) {
8057 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8063 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8064 struct genl_info *info)
8066 struct net_device *dev = info->user_ptr[1];
8067 struct wireless_dev *wdev = dev->ieee80211_ptr;
8069 if (wdev->iftype != NL80211_IFTYPE_AP &&
8070 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8073 if (wdev->ap_unexpected_nlportid)
8076 wdev->ap_unexpected_nlportid = info->snd_portid;
8080 static int nl80211_probe_client(struct sk_buff *skb,
8081 struct genl_info *info)
8083 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8084 struct net_device *dev = info->user_ptr[1];
8085 struct wireless_dev *wdev = dev->ieee80211_ptr;
8086 struct sk_buff *msg;
8092 if (wdev->iftype != NL80211_IFTYPE_AP &&
8093 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8096 if (!info->attrs[NL80211_ATTR_MAC])
8099 if (!rdev->ops->probe_client)
8102 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8106 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8107 NL80211_CMD_PROBE_CLIENT);
8114 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8116 err = rdev_probe_client(rdev, dev, addr, &cookie);
8120 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8121 goto nla_put_failure;
8123 genlmsg_end(msg, hdr);
8125 return genlmsg_reply(msg, info);
8134 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8136 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8137 struct cfg80211_beacon_registration *reg, *nreg;
8140 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8143 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8147 /* First, check if already registered. */
8148 spin_lock_bh(&rdev->beacon_registrations_lock);
8149 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8150 if (reg->nlportid == info->snd_portid) {
8155 /* Add it to the list */
8156 nreg->nlportid = info->snd_portid;
8157 list_add(&nreg->list, &rdev->beacon_registrations);
8159 spin_unlock_bh(&rdev->beacon_registrations_lock);
8163 spin_unlock_bh(&rdev->beacon_registrations_lock);
8168 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8171 struct wireless_dev *wdev = info->user_ptr[1];
8174 if (!rdev->ops->start_p2p_device)
8177 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8180 if (wdev->p2p_started)
8183 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8187 err = rdev_start_p2p_device(rdev, wdev);
8191 wdev->p2p_started = true;
8197 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8200 struct wireless_dev *wdev = info->user_ptr[1];
8202 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8205 if (!rdev->ops->stop_p2p_device)
8208 cfg80211_stop_p2p_device(rdev, wdev);
8213 static int nl80211_get_protocol_features(struct sk_buff *skb,
8214 struct genl_info *info)
8217 struct sk_buff *msg;
8219 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8223 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8224 NL80211_CMD_GET_PROTOCOL_FEATURES);
8226 goto nla_put_failure;
8228 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8229 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8230 goto nla_put_failure;
8232 genlmsg_end(msg, hdr);
8233 return genlmsg_reply(msg, info);
8240 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8243 struct cfg80211_update_ft_ies_params ft_params;
8244 struct net_device *dev = info->user_ptr[1];
8246 if (!rdev->ops->update_ft_ies)
8249 if (!info->attrs[NL80211_ATTR_MDID] ||
8250 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8253 memset(&ft_params, 0, sizeof(ft_params));
8254 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8255 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8256 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8258 return rdev_update_ft_ies(rdev, dev, &ft_params);
8261 static int nl80211_crit_protocol_start(struct sk_buff *skb,
8262 struct genl_info *info)
8264 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8265 struct wireless_dev *wdev = info->user_ptr[1];
8266 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8270 if (!rdev->ops->crit_proto_start)
8273 if (WARN_ON(!rdev->ops->crit_proto_stop))
8276 if (rdev->crit_proto_nlportid)
8279 /* determine protocol if provided */
8280 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8281 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8283 if (proto >= NUM_NL80211_CRIT_PROTO)
8286 /* timeout must be provided */
8287 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8291 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8293 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8296 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8298 rdev->crit_proto_nlportid = info->snd_portid;
8303 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8304 struct genl_info *info)
8306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8307 struct wireless_dev *wdev = info->user_ptr[1];
8309 if (!rdev->ops->crit_proto_stop)
8312 if (rdev->crit_proto_nlportid) {
8313 rdev->crit_proto_nlportid = 0;
8314 rdev_crit_proto_stop(rdev, wdev);
8319 #define NL80211_FLAG_NEED_WIPHY 0x01
8320 #define NL80211_FLAG_NEED_NETDEV 0x02
8321 #define NL80211_FLAG_NEED_RTNL 0x04
8322 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8323 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8324 NL80211_FLAG_CHECK_NETDEV_UP)
8325 #define NL80211_FLAG_NEED_WDEV 0x10
8326 /* If a netdev is associated, it must be UP, P2P must be started */
8327 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8328 NL80211_FLAG_CHECK_NETDEV_UP)
8330 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8331 struct genl_info *info)
8333 struct cfg80211_registered_device *rdev;
8334 struct wireless_dev *wdev;
8335 struct net_device *dev;
8336 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8341 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
8342 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
8346 return PTR_ERR(rdev);
8348 info->user_ptr[0] = rdev;
8349 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8350 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8353 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8358 return PTR_ERR(wdev);
8362 rdev = wiphy_to_dev(wdev->wiphy);
8364 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8371 info->user_ptr[1] = dev;
8373 info->user_ptr[1] = wdev;
8377 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8378 !netif_running(dev)) {
8385 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8386 if (!wdev->p2p_started) {
8393 info->user_ptr[0] = rdev;
8399 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8400 struct genl_info *info)
8402 if (info->user_ptr[1]) {
8403 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8404 struct wireless_dev *wdev = info->user_ptr[1];
8407 dev_put(wdev->netdev);
8409 dev_put(info->user_ptr[1]);
8412 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8416 static struct genl_ops nl80211_ops[] = {
8418 .cmd = NL80211_CMD_GET_WIPHY,
8419 .doit = nl80211_get_wiphy,
8420 .dumpit = nl80211_dump_wiphy,
8421 .policy = nl80211_policy,
8422 /* can be retrieved by unprivileged users */
8423 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8424 NL80211_FLAG_NEED_RTNL,
8427 .cmd = NL80211_CMD_SET_WIPHY,
8428 .doit = nl80211_set_wiphy,
8429 .policy = nl80211_policy,
8430 .flags = GENL_ADMIN_PERM,
8431 .internal_flags = NL80211_FLAG_NEED_RTNL,
8434 .cmd = NL80211_CMD_GET_INTERFACE,
8435 .doit = nl80211_get_interface,
8436 .dumpit = nl80211_dump_interface,
8437 .policy = nl80211_policy,
8438 /* can be retrieved by unprivileged users */
8439 .internal_flags = NL80211_FLAG_NEED_WDEV |
8440 NL80211_FLAG_NEED_RTNL,
8443 .cmd = NL80211_CMD_SET_INTERFACE,
8444 .doit = nl80211_set_interface,
8445 .policy = nl80211_policy,
8446 .flags = GENL_ADMIN_PERM,
8447 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8448 NL80211_FLAG_NEED_RTNL,
8451 .cmd = NL80211_CMD_NEW_INTERFACE,
8452 .doit = nl80211_new_interface,
8453 .policy = nl80211_policy,
8454 .flags = GENL_ADMIN_PERM,
8455 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8456 NL80211_FLAG_NEED_RTNL,
8459 .cmd = NL80211_CMD_DEL_INTERFACE,
8460 .doit = nl80211_del_interface,
8461 .policy = nl80211_policy,
8462 .flags = GENL_ADMIN_PERM,
8463 .internal_flags = NL80211_FLAG_NEED_WDEV |
8464 NL80211_FLAG_NEED_RTNL,
8467 .cmd = NL80211_CMD_GET_KEY,
8468 .doit = nl80211_get_key,
8469 .policy = nl80211_policy,
8470 .flags = GENL_ADMIN_PERM,
8471 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8472 NL80211_FLAG_NEED_RTNL,
8475 .cmd = NL80211_CMD_SET_KEY,
8476 .doit = nl80211_set_key,
8477 .policy = nl80211_policy,
8478 .flags = GENL_ADMIN_PERM,
8479 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8480 NL80211_FLAG_NEED_RTNL,
8483 .cmd = NL80211_CMD_NEW_KEY,
8484 .doit = nl80211_new_key,
8485 .policy = nl80211_policy,
8486 .flags = GENL_ADMIN_PERM,
8487 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8488 NL80211_FLAG_NEED_RTNL,
8491 .cmd = NL80211_CMD_DEL_KEY,
8492 .doit = nl80211_del_key,
8493 .policy = nl80211_policy,
8494 .flags = GENL_ADMIN_PERM,
8495 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8496 NL80211_FLAG_NEED_RTNL,
8499 .cmd = NL80211_CMD_SET_BEACON,
8500 .policy = nl80211_policy,
8501 .flags = GENL_ADMIN_PERM,
8502 .doit = nl80211_set_beacon,
8503 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8504 NL80211_FLAG_NEED_RTNL,
8507 .cmd = NL80211_CMD_START_AP,
8508 .policy = nl80211_policy,
8509 .flags = GENL_ADMIN_PERM,
8510 .doit = nl80211_start_ap,
8511 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8512 NL80211_FLAG_NEED_RTNL,
8515 .cmd = NL80211_CMD_STOP_AP,
8516 .policy = nl80211_policy,
8517 .flags = GENL_ADMIN_PERM,
8518 .doit = nl80211_stop_ap,
8519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8520 NL80211_FLAG_NEED_RTNL,
8523 .cmd = NL80211_CMD_GET_STATION,
8524 .doit = nl80211_get_station,
8525 .dumpit = nl80211_dump_station,
8526 .policy = nl80211_policy,
8527 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8528 NL80211_FLAG_NEED_RTNL,
8531 .cmd = NL80211_CMD_SET_STATION,
8532 .doit = nl80211_set_station,
8533 .policy = nl80211_policy,
8534 .flags = GENL_ADMIN_PERM,
8535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8536 NL80211_FLAG_NEED_RTNL,
8539 .cmd = NL80211_CMD_NEW_STATION,
8540 .doit = nl80211_new_station,
8541 .policy = nl80211_policy,
8542 .flags = GENL_ADMIN_PERM,
8543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8544 NL80211_FLAG_NEED_RTNL,
8547 .cmd = NL80211_CMD_DEL_STATION,
8548 .doit = nl80211_del_station,
8549 .policy = nl80211_policy,
8550 .flags = GENL_ADMIN_PERM,
8551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8552 NL80211_FLAG_NEED_RTNL,
8555 .cmd = NL80211_CMD_GET_MPATH,
8556 .doit = nl80211_get_mpath,
8557 .dumpit = nl80211_dump_mpath,
8558 .policy = nl80211_policy,
8559 .flags = GENL_ADMIN_PERM,
8560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8561 NL80211_FLAG_NEED_RTNL,
8564 .cmd = NL80211_CMD_SET_MPATH,
8565 .doit = nl80211_set_mpath,
8566 .policy = nl80211_policy,
8567 .flags = GENL_ADMIN_PERM,
8568 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8569 NL80211_FLAG_NEED_RTNL,
8572 .cmd = NL80211_CMD_NEW_MPATH,
8573 .doit = nl80211_new_mpath,
8574 .policy = nl80211_policy,
8575 .flags = GENL_ADMIN_PERM,
8576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8577 NL80211_FLAG_NEED_RTNL,
8580 .cmd = NL80211_CMD_DEL_MPATH,
8581 .doit = nl80211_del_mpath,
8582 .policy = nl80211_policy,
8583 .flags = GENL_ADMIN_PERM,
8584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8585 NL80211_FLAG_NEED_RTNL,
8588 .cmd = NL80211_CMD_SET_BSS,
8589 .doit = nl80211_set_bss,
8590 .policy = nl80211_policy,
8591 .flags = GENL_ADMIN_PERM,
8592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8593 NL80211_FLAG_NEED_RTNL,
8596 .cmd = NL80211_CMD_GET_REG,
8597 .doit = nl80211_get_reg,
8598 .policy = nl80211_policy,
8599 .internal_flags = NL80211_FLAG_NEED_RTNL,
8600 /* can be retrieved by unprivileged users */
8603 .cmd = NL80211_CMD_SET_REG,
8604 .doit = nl80211_set_reg,
8605 .policy = nl80211_policy,
8606 .flags = GENL_ADMIN_PERM,
8607 .internal_flags = NL80211_FLAG_NEED_RTNL,
8610 .cmd = NL80211_CMD_REQ_SET_REG,
8611 .doit = nl80211_req_set_reg,
8612 .policy = nl80211_policy,
8613 .flags = GENL_ADMIN_PERM,
8616 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8617 .doit = nl80211_get_mesh_config,
8618 .policy = nl80211_policy,
8619 /* can be retrieved by unprivileged users */
8620 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8621 NL80211_FLAG_NEED_RTNL,
8624 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8625 .doit = nl80211_update_mesh_config,
8626 .policy = nl80211_policy,
8627 .flags = GENL_ADMIN_PERM,
8628 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8629 NL80211_FLAG_NEED_RTNL,
8632 .cmd = NL80211_CMD_TRIGGER_SCAN,
8633 .doit = nl80211_trigger_scan,
8634 .policy = nl80211_policy,
8635 .flags = GENL_ADMIN_PERM,
8636 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8637 NL80211_FLAG_NEED_RTNL,
8640 .cmd = NL80211_CMD_GET_SCAN,
8641 .policy = nl80211_policy,
8642 .dumpit = nl80211_dump_scan,
8645 .cmd = NL80211_CMD_START_SCHED_SCAN,
8646 .doit = nl80211_start_sched_scan,
8647 .policy = nl80211_policy,
8648 .flags = GENL_ADMIN_PERM,
8649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8650 NL80211_FLAG_NEED_RTNL,
8653 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8654 .doit = nl80211_stop_sched_scan,
8655 .policy = nl80211_policy,
8656 .flags = GENL_ADMIN_PERM,
8657 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8658 NL80211_FLAG_NEED_RTNL,
8661 .cmd = NL80211_CMD_AUTHENTICATE,
8662 .doit = nl80211_authenticate,
8663 .policy = nl80211_policy,
8664 .flags = GENL_ADMIN_PERM,
8665 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8666 NL80211_FLAG_NEED_RTNL,
8669 .cmd = NL80211_CMD_ASSOCIATE,
8670 .doit = nl80211_associate,
8671 .policy = nl80211_policy,
8672 .flags = GENL_ADMIN_PERM,
8673 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8674 NL80211_FLAG_NEED_RTNL,
8677 .cmd = NL80211_CMD_DEAUTHENTICATE,
8678 .doit = nl80211_deauthenticate,
8679 .policy = nl80211_policy,
8680 .flags = GENL_ADMIN_PERM,
8681 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8682 NL80211_FLAG_NEED_RTNL,
8685 .cmd = NL80211_CMD_DISASSOCIATE,
8686 .doit = nl80211_disassociate,
8687 .policy = nl80211_policy,
8688 .flags = GENL_ADMIN_PERM,
8689 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8690 NL80211_FLAG_NEED_RTNL,
8693 .cmd = NL80211_CMD_JOIN_IBSS,
8694 .doit = nl80211_join_ibss,
8695 .policy = nl80211_policy,
8696 .flags = GENL_ADMIN_PERM,
8697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8698 NL80211_FLAG_NEED_RTNL,
8701 .cmd = NL80211_CMD_LEAVE_IBSS,
8702 .doit = nl80211_leave_ibss,
8703 .policy = nl80211_policy,
8704 .flags = GENL_ADMIN_PERM,
8705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8706 NL80211_FLAG_NEED_RTNL,
8708 #ifdef CONFIG_NL80211_TESTMODE
8710 .cmd = NL80211_CMD_TESTMODE,
8711 .doit = nl80211_testmode_do,
8712 .dumpit = nl80211_testmode_dump,
8713 .policy = nl80211_policy,
8714 .flags = GENL_ADMIN_PERM,
8715 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8716 NL80211_FLAG_NEED_RTNL,
8720 .cmd = NL80211_CMD_CONNECT,
8721 .doit = nl80211_connect,
8722 .policy = nl80211_policy,
8723 .flags = GENL_ADMIN_PERM,
8724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8725 NL80211_FLAG_NEED_RTNL,
8728 .cmd = NL80211_CMD_DISCONNECT,
8729 .doit = nl80211_disconnect,
8730 .policy = nl80211_policy,
8731 .flags = GENL_ADMIN_PERM,
8732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8733 NL80211_FLAG_NEED_RTNL,
8736 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8737 .doit = nl80211_wiphy_netns,
8738 .policy = nl80211_policy,
8739 .flags = GENL_ADMIN_PERM,
8740 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8741 NL80211_FLAG_NEED_RTNL,
8744 .cmd = NL80211_CMD_GET_SURVEY,
8745 .policy = nl80211_policy,
8746 .dumpit = nl80211_dump_survey,
8749 .cmd = NL80211_CMD_SET_PMKSA,
8750 .doit = nl80211_setdel_pmksa,
8751 .policy = nl80211_policy,
8752 .flags = GENL_ADMIN_PERM,
8753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8754 NL80211_FLAG_NEED_RTNL,
8757 .cmd = NL80211_CMD_DEL_PMKSA,
8758 .doit = nl80211_setdel_pmksa,
8759 .policy = nl80211_policy,
8760 .flags = GENL_ADMIN_PERM,
8761 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8762 NL80211_FLAG_NEED_RTNL,
8765 .cmd = NL80211_CMD_FLUSH_PMKSA,
8766 .doit = nl80211_flush_pmksa,
8767 .policy = nl80211_policy,
8768 .flags = GENL_ADMIN_PERM,
8769 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8770 NL80211_FLAG_NEED_RTNL,
8773 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8774 .doit = nl80211_remain_on_channel,
8775 .policy = nl80211_policy,
8776 .flags = GENL_ADMIN_PERM,
8777 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8778 NL80211_FLAG_NEED_RTNL,
8781 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8782 .doit = nl80211_cancel_remain_on_channel,
8783 .policy = nl80211_policy,
8784 .flags = GENL_ADMIN_PERM,
8785 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8786 NL80211_FLAG_NEED_RTNL,
8789 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8790 .doit = nl80211_set_tx_bitrate_mask,
8791 .policy = nl80211_policy,
8792 .flags = GENL_ADMIN_PERM,
8793 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8794 NL80211_FLAG_NEED_RTNL,
8797 .cmd = NL80211_CMD_REGISTER_FRAME,
8798 .doit = nl80211_register_mgmt,
8799 .policy = nl80211_policy,
8800 .flags = GENL_ADMIN_PERM,
8801 .internal_flags = NL80211_FLAG_NEED_WDEV |
8802 NL80211_FLAG_NEED_RTNL,
8805 .cmd = NL80211_CMD_FRAME,
8806 .doit = nl80211_tx_mgmt,
8807 .policy = nl80211_policy,
8808 .flags = GENL_ADMIN_PERM,
8809 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8810 NL80211_FLAG_NEED_RTNL,
8813 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8814 .doit = nl80211_tx_mgmt_cancel_wait,
8815 .policy = nl80211_policy,
8816 .flags = GENL_ADMIN_PERM,
8817 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8818 NL80211_FLAG_NEED_RTNL,
8821 .cmd = NL80211_CMD_SET_POWER_SAVE,
8822 .doit = nl80211_set_power_save,
8823 .policy = nl80211_policy,
8824 .flags = GENL_ADMIN_PERM,
8825 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8826 NL80211_FLAG_NEED_RTNL,
8829 .cmd = NL80211_CMD_GET_POWER_SAVE,
8830 .doit = nl80211_get_power_save,
8831 .policy = nl80211_policy,
8832 /* can be retrieved by unprivileged users */
8833 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8834 NL80211_FLAG_NEED_RTNL,
8837 .cmd = NL80211_CMD_SET_CQM,
8838 .doit = nl80211_set_cqm,
8839 .policy = nl80211_policy,
8840 .flags = GENL_ADMIN_PERM,
8841 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8842 NL80211_FLAG_NEED_RTNL,
8845 .cmd = NL80211_CMD_SET_CHANNEL,
8846 .doit = nl80211_set_channel,
8847 .policy = nl80211_policy,
8848 .flags = GENL_ADMIN_PERM,
8849 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8850 NL80211_FLAG_NEED_RTNL,
8853 .cmd = NL80211_CMD_SET_WDS_PEER,
8854 .doit = nl80211_set_wds_peer,
8855 .policy = nl80211_policy,
8856 .flags = GENL_ADMIN_PERM,
8857 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8858 NL80211_FLAG_NEED_RTNL,
8861 .cmd = NL80211_CMD_JOIN_MESH,
8862 .doit = nl80211_join_mesh,
8863 .policy = nl80211_policy,
8864 .flags = GENL_ADMIN_PERM,
8865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8866 NL80211_FLAG_NEED_RTNL,
8869 .cmd = NL80211_CMD_LEAVE_MESH,
8870 .doit = nl80211_leave_mesh,
8871 .policy = nl80211_policy,
8872 .flags = GENL_ADMIN_PERM,
8873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8874 NL80211_FLAG_NEED_RTNL,
8878 .cmd = NL80211_CMD_GET_WOWLAN,
8879 .doit = nl80211_get_wowlan,
8880 .policy = nl80211_policy,
8881 /* can be retrieved by unprivileged users */
8882 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8883 NL80211_FLAG_NEED_RTNL,
8886 .cmd = NL80211_CMD_SET_WOWLAN,
8887 .doit = nl80211_set_wowlan,
8888 .policy = nl80211_policy,
8889 .flags = GENL_ADMIN_PERM,
8890 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8891 NL80211_FLAG_NEED_RTNL,
8895 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8896 .doit = nl80211_set_rekey_data,
8897 .policy = nl80211_policy,
8898 .flags = GENL_ADMIN_PERM,
8899 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8900 NL80211_FLAG_NEED_RTNL,
8903 .cmd = NL80211_CMD_TDLS_MGMT,
8904 .doit = nl80211_tdls_mgmt,
8905 .policy = nl80211_policy,
8906 .flags = GENL_ADMIN_PERM,
8907 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8908 NL80211_FLAG_NEED_RTNL,
8911 .cmd = NL80211_CMD_TDLS_OPER,
8912 .doit = nl80211_tdls_oper,
8913 .policy = nl80211_policy,
8914 .flags = GENL_ADMIN_PERM,
8915 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8916 NL80211_FLAG_NEED_RTNL,
8919 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8920 .doit = nl80211_register_unexpected_frame,
8921 .policy = nl80211_policy,
8922 .flags = GENL_ADMIN_PERM,
8923 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8924 NL80211_FLAG_NEED_RTNL,
8927 .cmd = NL80211_CMD_PROBE_CLIENT,
8928 .doit = nl80211_probe_client,
8929 .policy = nl80211_policy,
8930 .flags = GENL_ADMIN_PERM,
8931 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8932 NL80211_FLAG_NEED_RTNL,
8935 .cmd = NL80211_CMD_REGISTER_BEACONS,
8936 .doit = nl80211_register_beacons,
8937 .policy = nl80211_policy,
8938 .flags = GENL_ADMIN_PERM,
8939 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8940 NL80211_FLAG_NEED_RTNL,
8943 .cmd = NL80211_CMD_SET_NOACK_MAP,
8944 .doit = nl80211_set_noack_map,
8945 .policy = nl80211_policy,
8946 .flags = GENL_ADMIN_PERM,
8947 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8948 NL80211_FLAG_NEED_RTNL,
8951 .cmd = NL80211_CMD_START_P2P_DEVICE,
8952 .doit = nl80211_start_p2p_device,
8953 .policy = nl80211_policy,
8954 .flags = GENL_ADMIN_PERM,
8955 .internal_flags = NL80211_FLAG_NEED_WDEV |
8956 NL80211_FLAG_NEED_RTNL,
8959 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8960 .doit = nl80211_stop_p2p_device,
8961 .policy = nl80211_policy,
8962 .flags = GENL_ADMIN_PERM,
8963 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8964 NL80211_FLAG_NEED_RTNL,
8967 .cmd = NL80211_CMD_SET_MCAST_RATE,
8968 .doit = nl80211_set_mcast_rate,
8969 .policy = nl80211_policy,
8970 .flags = GENL_ADMIN_PERM,
8971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8972 NL80211_FLAG_NEED_RTNL,
8975 .cmd = NL80211_CMD_SET_MAC_ACL,
8976 .doit = nl80211_set_mac_acl,
8977 .policy = nl80211_policy,
8978 .flags = GENL_ADMIN_PERM,
8979 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8980 NL80211_FLAG_NEED_RTNL,
8983 .cmd = NL80211_CMD_RADAR_DETECT,
8984 .doit = nl80211_start_radar_detection,
8985 .policy = nl80211_policy,
8986 .flags = GENL_ADMIN_PERM,
8987 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8988 NL80211_FLAG_NEED_RTNL,
8991 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8992 .doit = nl80211_get_protocol_features,
8993 .policy = nl80211_policy,
8996 .cmd = NL80211_CMD_UPDATE_FT_IES,
8997 .doit = nl80211_update_ft_ies,
8998 .policy = nl80211_policy,
8999 .flags = GENL_ADMIN_PERM,
9000 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9001 NL80211_FLAG_NEED_RTNL,
9004 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9005 .doit = nl80211_crit_protocol_start,
9006 .policy = nl80211_policy,
9007 .flags = GENL_ADMIN_PERM,
9008 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9009 NL80211_FLAG_NEED_RTNL,
9012 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9013 .doit = nl80211_crit_protocol_stop,
9014 .policy = nl80211_policy,
9015 .flags = GENL_ADMIN_PERM,
9016 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9017 NL80211_FLAG_NEED_RTNL,
9021 static struct genl_multicast_group nl80211_mlme_mcgrp = {
9025 /* multicast groups */
9026 static struct genl_multicast_group nl80211_config_mcgrp = {
9029 static struct genl_multicast_group nl80211_scan_mcgrp = {
9032 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9033 .name = "regulatory",
9036 /* notification functions */
9038 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9040 struct sk_buff *msg;
9042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9046 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
9047 false, NULL, NULL, NULL) < 0) {
9052 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9053 nl80211_config_mcgrp.id, GFP_KERNEL);
9056 static int nl80211_add_scan_req(struct sk_buff *msg,
9057 struct cfg80211_registered_device *rdev)
9059 struct cfg80211_scan_request *req = rdev->scan_req;
9060 struct nlattr *nest;
9066 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9068 goto nla_put_failure;
9069 for (i = 0; i < req->n_ssids; i++) {
9070 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9071 goto nla_put_failure;
9073 nla_nest_end(msg, nest);
9075 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9077 goto nla_put_failure;
9078 for (i = 0; i < req->n_channels; i++) {
9079 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9080 goto nla_put_failure;
9082 nla_nest_end(msg, nest);
9085 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9086 goto nla_put_failure;
9089 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9096 static int nl80211_send_scan_msg(struct sk_buff *msg,
9097 struct cfg80211_registered_device *rdev,
9098 struct wireless_dev *wdev,
9099 u32 portid, u32 seq, int flags,
9104 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9108 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9109 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9110 wdev->netdev->ifindex)) ||
9111 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9112 goto nla_put_failure;
9114 /* ignore errors and send incomplete event anyway */
9115 nl80211_add_scan_req(msg, rdev);
9117 return genlmsg_end(msg, hdr);
9120 genlmsg_cancel(msg, hdr);
9125 nl80211_send_sched_scan_msg(struct sk_buff *msg,
9126 struct cfg80211_registered_device *rdev,
9127 struct net_device *netdev,
9128 u32 portid, u32 seq, int flags, u32 cmd)
9132 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9136 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9137 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9138 goto nla_put_failure;
9140 return genlmsg_end(msg, hdr);
9143 genlmsg_cancel(msg, hdr);
9147 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
9148 struct wireless_dev *wdev)
9150 struct sk_buff *msg;
9152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9156 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9157 NL80211_CMD_TRIGGER_SCAN) < 0) {
9162 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9163 nl80211_scan_mcgrp.id, GFP_KERNEL);
9166 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
9167 struct wireless_dev *wdev)
9169 struct sk_buff *msg;
9171 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9175 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9176 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
9181 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9182 nl80211_scan_mcgrp.id, GFP_KERNEL);
9185 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
9186 struct wireless_dev *wdev)
9188 struct sk_buff *msg;
9190 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9194 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9195 NL80211_CMD_SCAN_ABORTED) < 0) {
9200 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9201 nl80211_scan_mcgrp.id, GFP_KERNEL);
9204 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9205 struct net_device *netdev)
9207 struct sk_buff *msg;
9209 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9213 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9214 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9219 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9220 nl80211_scan_mcgrp.id, GFP_KERNEL);
9223 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9224 struct net_device *netdev, u32 cmd)
9226 struct sk_buff *msg;
9228 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9232 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9237 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9238 nl80211_scan_mcgrp.id, GFP_KERNEL);
9242 * This can happen on global regulatory changes or device specific settings
9243 * based on custom world regulatory domains.
9245 void nl80211_send_reg_change_event(struct regulatory_request *request)
9247 struct sk_buff *msg;
9250 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9254 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9260 /* Userspace can always count this one always being set */
9261 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9262 goto nla_put_failure;
9264 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9265 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9266 NL80211_REGDOM_TYPE_WORLD))
9267 goto nla_put_failure;
9268 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9269 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9270 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9271 goto nla_put_failure;
9272 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9273 request->intersect) {
9274 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9275 NL80211_REGDOM_TYPE_INTERSECTION))
9276 goto nla_put_failure;
9278 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9279 NL80211_REGDOM_TYPE_COUNTRY) ||
9280 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9282 goto nla_put_failure;
9285 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9286 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9287 goto nla_put_failure;
9289 genlmsg_end(msg, hdr);
9292 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9299 genlmsg_cancel(msg, hdr);
9303 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9304 struct net_device *netdev,
9305 const u8 *buf, size_t len,
9306 enum nl80211_commands cmd, gfp_t gfp)
9308 struct sk_buff *msg;
9311 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9315 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9322 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9323 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9324 goto nla_put_failure;
9326 genlmsg_end(msg, hdr);
9328 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9329 nl80211_mlme_mcgrp.id, gfp);
9333 genlmsg_cancel(msg, hdr);
9337 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
9338 struct net_device *netdev, const u8 *buf,
9339 size_t len, gfp_t gfp)
9341 nl80211_send_mlme_event(rdev, netdev, buf, len,
9342 NL80211_CMD_AUTHENTICATE, gfp);
9345 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9346 struct net_device *netdev, const u8 *buf,
9347 size_t len, gfp_t gfp)
9349 nl80211_send_mlme_event(rdev, netdev, buf, len,
9350 NL80211_CMD_ASSOCIATE, gfp);
9353 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
9354 struct net_device *netdev, const u8 *buf,
9355 size_t len, gfp_t gfp)
9357 nl80211_send_mlme_event(rdev, netdev, buf, len,
9358 NL80211_CMD_DEAUTHENTICATE, gfp);
9361 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9362 struct net_device *netdev, const u8 *buf,
9363 size_t len, gfp_t gfp)
9365 nl80211_send_mlme_event(rdev, netdev, buf, len,
9366 NL80211_CMD_DISASSOCIATE, gfp);
9369 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9372 struct wireless_dev *wdev = dev->ieee80211_ptr;
9373 struct wiphy *wiphy = wdev->wiphy;
9374 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9375 const struct ieee80211_mgmt *mgmt = (void *)buf;
9378 if (WARN_ON(len < 2))
9381 if (ieee80211_is_deauth(mgmt->frame_control))
9382 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9384 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
9386 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9387 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
9389 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
9391 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9392 struct net_device *netdev, int cmd,
9393 const u8 *addr, gfp_t gfp)
9395 struct sk_buff *msg;
9398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9402 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9408 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9409 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9410 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9411 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9412 goto nla_put_failure;
9414 genlmsg_end(msg, hdr);
9416 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9417 nl80211_mlme_mcgrp.id, gfp);
9421 genlmsg_cancel(msg, hdr);
9425 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
9426 struct net_device *netdev, const u8 *addr,
9429 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
9433 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
9434 struct net_device *netdev, const u8 *addr,
9437 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9441 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9442 struct net_device *netdev, const u8 *bssid,
9443 const u8 *req_ie, size_t req_ie_len,
9444 const u8 *resp_ie, size_t resp_ie_len,
9445 u16 status, gfp_t gfp)
9447 struct sk_buff *msg;
9450 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9454 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9460 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9461 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9462 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9463 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9465 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9467 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9468 goto nla_put_failure;
9470 genlmsg_end(msg, hdr);
9472 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9473 nl80211_mlme_mcgrp.id, gfp);
9477 genlmsg_cancel(msg, hdr);
9482 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9483 struct net_device *netdev, const u8 *bssid,
9484 const u8 *req_ie, size_t req_ie_len,
9485 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9487 struct sk_buff *msg;
9490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9502 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9504 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9506 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9507 goto nla_put_failure;
9509 genlmsg_end(msg, hdr);
9511 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9512 nl80211_mlme_mcgrp.id, gfp);
9516 genlmsg_cancel(msg, hdr);
9521 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9522 struct net_device *netdev, u16 reason,
9523 const u8 *ie, size_t ie_len, bool from_ap)
9525 struct sk_buff *msg;
9528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9538 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9539 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9540 (from_ap && reason &&
9541 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9543 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9544 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9545 goto nla_put_failure;
9547 genlmsg_end(msg, hdr);
9549 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9550 nl80211_mlme_mcgrp.id, GFP_KERNEL);
9554 genlmsg_cancel(msg, hdr);
9559 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9560 struct net_device *netdev, const u8 *bssid,
9563 struct sk_buff *msg;
9566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9570 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9576 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9577 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9578 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9579 goto nla_put_failure;
9581 genlmsg_end(msg, hdr);
9583 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9584 nl80211_mlme_mcgrp.id, gfp);
9588 genlmsg_cancel(msg, hdr);
9592 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9593 const u8* ie, u8 ie_len, gfp_t gfp)
9595 struct wireless_dev *wdev = dev->ieee80211_ptr;
9596 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9597 struct sk_buff *msg;
9600 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9603 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9609 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9615 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9616 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9617 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9619 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9620 goto nla_put_failure;
9622 genlmsg_end(msg, hdr);
9624 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9625 nl80211_mlme_mcgrp.id, gfp);
9629 genlmsg_cancel(msg, hdr);
9632 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
9634 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9635 struct net_device *netdev, const u8 *addr,
9636 enum nl80211_key_type key_type, int key_id,
9637 const u8 *tsc, gfp_t gfp)
9639 struct sk_buff *msg;
9642 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9646 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9652 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9653 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9654 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9655 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9657 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9658 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9659 goto nla_put_failure;
9661 genlmsg_end(msg, hdr);
9663 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9664 nl80211_mlme_mcgrp.id, gfp);
9668 genlmsg_cancel(msg, hdr);
9672 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9673 struct ieee80211_channel *channel_before,
9674 struct ieee80211_channel *channel_after)
9676 struct sk_buff *msg;
9678 struct nlattr *nl_freq;
9680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9691 * Since we are applying the beacon hint to a wiphy we know its
9692 * wiphy_idx is valid
9694 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9695 goto nla_put_failure;
9698 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9700 goto nla_put_failure;
9701 if (nl80211_msg_put_channel(msg, channel_before, false))
9702 goto nla_put_failure;
9703 nla_nest_end(msg, nl_freq);
9706 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9708 goto nla_put_failure;
9709 if (nl80211_msg_put_channel(msg, channel_after, false))
9710 goto nla_put_failure;
9711 nla_nest_end(msg, nl_freq);
9713 genlmsg_end(msg, hdr);
9716 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9723 genlmsg_cancel(msg, hdr);
9727 static void nl80211_send_remain_on_chan_event(
9728 int cmd, struct cfg80211_registered_device *rdev,
9729 struct wireless_dev *wdev, u64 cookie,
9730 struct ieee80211_channel *chan,
9731 unsigned int duration, gfp_t gfp)
9733 struct sk_buff *msg;
9736 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9740 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9746 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9747 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9748 wdev->netdev->ifindex)) ||
9749 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9750 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9751 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9752 NL80211_CHAN_NO_HT) ||
9753 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9754 goto nla_put_failure;
9756 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9757 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9758 goto nla_put_failure;
9760 genlmsg_end(msg, hdr);
9762 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9763 nl80211_mlme_mcgrp.id, gfp);
9767 genlmsg_cancel(msg, hdr);
9771 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9772 struct ieee80211_channel *chan,
9773 unsigned int duration, gfp_t gfp)
9775 struct wiphy *wiphy = wdev->wiphy;
9776 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9778 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9779 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9780 rdev, wdev, cookie, chan,
9783 EXPORT_SYMBOL(cfg80211_ready_on_channel);
9785 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9786 struct ieee80211_channel *chan,
9789 struct wiphy *wiphy = wdev->wiphy;
9790 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9792 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9793 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9794 rdev, wdev, cookie, chan, 0, gfp);
9796 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9798 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9799 struct station_info *sinfo, gfp_t gfp)
9801 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9802 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9803 struct sk_buff *msg;
9805 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9811 if (nl80211_send_station(msg, 0, 0, 0,
9812 rdev, dev, mac_addr, sinfo) < 0) {
9817 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9818 nl80211_mlme_mcgrp.id, gfp);
9820 EXPORT_SYMBOL(cfg80211_new_sta);
9822 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
9824 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9825 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9826 struct sk_buff *msg;
9829 trace_cfg80211_del_sta(dev, mac_addr);
9831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9835 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9841 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9842 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9843 goto nla_put_failure;
9845 genlmsg_end(msg, hdr);
9847 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9848 nl80211_mlme_mcgrp.id, gfp);
9852 genlmsg_cancel(msg, hdr);
9855 EXPORT_SYMBOL(cfg80211_del_sta);
9857 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9858 enum nl80211_connect_failed_reason reason,
9861 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9862 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9863 struct sk_buff *msg;
9866 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9870 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9876 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9877 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9878 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9879 goto nla_put_failure;
9881 genlmsg_end(msg, hdr);
9883 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9884 nl80211_mlme_mcgrp.id, gfp);
9888 genlmsg_cancel(msg, hdr);
9891 EXPORT_SYMBOL(cfg80211_conn_failed);
9893 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9894 const u8 *addr, gfp_t gfp)
9896 struct wireless_dev *wdev = dev->ieee80211_ptr;
9897 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9898 struct sk_buff *msg;
9900 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9905 msg = nlmsg_new(100, gfp);
9909 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9915 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9916 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9917 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9918 goto nla_put_failure;
9920 genlmsg_end(msg, hdr);
9921 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9925 genlmsg_cancel(msg, hdr);
9930 bool cfg80211_rx_spurious_frame(struct net_device *dev,
9931 const u8 *addr, gfp_t gfp)
9933 struct wireless_dev *wdev = dev->ieee80211_ptr;
9936 trace_cfg80211_rx_spurious_frame(dev, addr);
9938 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9939 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9940 trace_cfg80211_return_bool(false);
9943 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9945 trace_cfg80211_return_bool(ret);
9948 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
9950 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9951 const u8 *addr, gfp_t gfp)
9953 struct wireless_dev *wdev = dev->ieee80211_ptr;
9956 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9958 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9959 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9960 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9961 trace_cfg80211_return_bool(false);
9964 ret = __nl80211_unexpected_frame(dev,
9965 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9967 trace_cfg80211_return_bool(ret);
9970 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
9972 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9973 struct wireless_dev *wdev, u32 nlportid,
9974 int freq, int sig_dbm,
9975 const u8 *buf, size_t len, gfp_t gfp)
9977 struct net_device *netdev = wdev->netdev;
9978 struct sk_buff *msg;
9981 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9985 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9991 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9992 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9993 netdev->ifindex)) ||
9994 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9995 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9997 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9998 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9999 goto nla_put_failure;
10001 genlmsg_end(msg, hdr);
10003 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10006 genlmsg_cancel(msg, hdr);
10011 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10012 const u8 *buf, size_t len, bool ack, gfp_t gfp)
10014 struct wiphy *wiphy = wdev->wiphy;
10015 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10016 struct net_device *netdev = wdev->netdev;
10017 struct sk_buff *msg;
10020 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10022 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10026 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10032 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10033 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10034 netdev->ifindex)) ||
10035 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10036 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10037 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10038 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10039 goto nla_put_failure;
10041 genlmsg_end(msg, hdr);
10043 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10047 genlmsg_cancel(msg, hdr);
10050 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
10052 void cfg80211_cqm_rssi_notify(struct net_device *dev,
10053 enum nl80211_cqm_rssi_threshold_event rssi_event,
10056 struct wireless_dev *wdev = dev->ieee80211_ptr;
10057 struct wiphy *wiphy = wdev->wiphy;
10058 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10059 struct sk_buff *msg;
10060 struct nlattr *pinfoattr;
10063 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10065 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10069 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10075 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10076 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
10077 goto nla_put_failure;
10079 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10081 goto nla_put_failure;
10083 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10085 goto nla_put_failure;
10087 nla_nest_end(msg, pinfoattr);
10089 genlmsg_end(msg, hdr);
10091 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10092 nl80211_mlme_mcgrp.id, gfp);
10096 genlmsg_cancel(msg, hdr);
10099 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
10101 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10102 struct net_device *netdev, const u8 *bssid,
10103 const u8 *replay_ctr, gfp_t gfp)
10105 struct sk_buff *msg;
10106 struct nlattr *rekey_attr;
10109 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10113 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10119 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10120 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10121 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10122 goto nla_put_failure;
10124 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10126 goto nla_put_failure;
10128 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10129 NL80211_REPLAY_CTR_LEN, replay_ctr))
10130 goto nla_put_failure;
10132 nla_nest_end(msg, rekey_attr);
10134 genlmsg_end(msg, hdr);
10136 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10137 nl80211_mlme_mcgrp.id, gfp);
10141 genlmsg_cancel(msg, hdr);
10145 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10146 const u8 *replay_ctr, gfp_t gfp)
10148 struct wireless_dev *wdev = dev->ieee80211_ptr;
10149 struct wiphy *wiphy = wdev->wiphy;
10150 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10152 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10153 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10155 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10158 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10159 struct net_device *netdev, int index,
10160 const u8 *bssid, bool preauth, gfp_t gfp)
10162 struct sk_buff *msg;
10163 struct nlattr *attr;
10166 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10170 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10176 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10177 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10178 goto nla_put_failure;
10180 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10182 goto nla_put_failure;
10184 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10185 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10187 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10188 goto nla_put_failure;
10190 nla_nest_end(msg, attr);
10192 genlmsg_end(msg, hdr);
10194 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10195 nl80211_mlme_mcgrp.id, gfp);
10199 genlmsg_cancel(msg, hdr);
10203 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10204 const u8 *bssid, bool preauth, gfp_t gfp)
10206 struct wireless_dev *wdev = dev->ieee80211_ptr;
10207 struct wiphy *wiphy = wdev->wiphy;
10208 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10210 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10211 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10213 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10215 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10216 struct net_device *netdev,
10217 struct cfg80211_chan_def *chandef,
10220 struct sk_buff *msg;
10223 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10227 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10233 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10234 goto nla_put_failure;
10236 if (nl80211_send_chandef(msg, chandef))
10237 goto nla_put_failure;
10239 genlmsg_end(msg, hdr);
10241 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10242 nl80211_mlme_mcgrp.id, gfp);
10246 genlmsg_cancel(msg, hdr);
10250 void cfg80211_ch_switch_notify(struct net_device *dev,
10251 struct cfg80211_chan_def *chandef)
10253 struct wireless_dev *wdev = dev->ieee80211_ptr;
10254 struct wiphy *wiphy = wdev->wiphy;
10255 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10257 trace_cfg80211_ch_switch_notify(dev, chandef);
10261 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10262 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10265 wdev->channel = chandef->chan;
10266 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10271 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10273 void cfg80211_cqm_txe_notify(struct net_device *dev,
10274 const u8 *peer, u32 num_packets,
10275 u32 rate, u32 intvl, gfp_t gfp)
10277 struct wireless_dev *wdev = dev->ieee80211_ptr;
10278 struct wiphy *wiphy = wdev->wiphy;
10279 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10280 struct sk_buff *msg;
10281 struct nlattr *pinfoattr;
10284 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10295 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10296 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10297 goto nla_put_failure;
10299 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10301 goto nla_put_failure;
10303 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10304 goto nla_put_failure;
10306 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10307 goto nla_put_failure;
10309 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10310 goto nla_put_failure;
10312 nla_nest_end(msg, pinfoattr);
10314 genlmsg_end(msg, hdr);
10316 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10317 nl80211_mlme_mcgrp.id, gfp);
10321 genlmsg_cancel(msg, hdr);
10324 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
10327 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10328 struct cfg80211_chan_def *chandef,
10329 enum nl80211_radar_event event,
10330 struct net_device *netdev, gfp_t gfp)
10332 struct sk_buff *msg;
10335 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10339 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10345 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10346 goto nla_put_failure;
10348 /* NOP and radar events don't need a netdev parameter */
10350 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10352 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10353 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10354 goto nla_put_failure;
10357 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10358 goto nla_put_failure;
10360 if (nl80211_send_chandef(msg, chandef))
10361 goto nla_put_failure;
10363 genlmsg_end(msg, hdr);
10365 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10366 nl80211_mlme_mcgrp.id, gfp);
10370 genlmsg_cancel(msg, hdr);
10374 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10375 const u8 *peer, u32 num_packets, gfp_t gfp)
10377 struct wireless_dev *wdev = dev->ieee80211_ptr;
10378 struct wiphy *wiphy = wdev->wiphy;
10379 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10380 struct sk_buff *msg;
10381 struct nlattr *pinfoattr;
10384 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10386 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10390 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10396 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10397 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10398 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10399 goto nla_put_failure;
10401 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10403 goto nla_put_failure;
10405 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10406 goto nla_put_failure;
10408 nla_nest_end(msg, pinfoattr);
10410 genlmsg_end(msg, hdr);
10412 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10413 nl80211_mlme_mcgrp.id, gfp);
10417 genlmsg_cancel(msg, hdr);
10420 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
10422 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10423 u64 cookie, bool acked, gfp_t gfp)
10425 struct wireless_dev *wdev = dev->ieee80211_ptr;
10426 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10427 struct sk_buff *msg;
10430 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10437 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10444 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10445 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10446 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10447 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10448 goto nla_put_failure;
10450 genlmsg_end(msg, hdr);
10452 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10453 nl80211_mlme_mcgrp.id, gfp);
10457 genlmsg_cancel(msg, hdr);
10460 EXPORT_SYMBOL(cfg80211_probe_status);
10462 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10463 const u8 *frame, size_t len,
10464 int freq, int sig_dbm)
10466 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10467 struct sk_buff *msg;
10469 struct cfg80211_beacon_registration *reg;
10471 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10473 spin_lock_bh(&rdev->beacon_registrations_lock);
10474 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10475 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10477 spin_unlock_bh(&rdev->beacon_registrations_lock);
10481 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10483 goto nla_put_failure;
10485 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10487 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10489 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10490 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10491 goto nla_put_failure;
10493 genlmsg_end(msg, hdr);
10495 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10497 spin_unlock_bh(&rdev->beacon_registrations_lock);
10501 spin_unlock_bh(&rdev->beacon_registrations_lock);
10503 genlmsg_cancel(msg, hdr);
10506 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10509 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10510 struct cfg80211_wowlan_wakeup *wakeup,
10513 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10514 struct sk_buff *msg;
10518 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10521 size += wakeup->packet_present_len;
10523 msg = nlmsg_new(size, gfp);
10527 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10531 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10532 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10535 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10536 wdev->netdev->ifindex))
10540 struct nlattr *reasons;
10542 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10544 if (wakeup->disconnect &&
10545 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10547 if (wakeup->magic_pkt &&
10548 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10550 if (wakeup->gtk_rekey_failure &&
10551 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10553 if (wakeup->eap_identity_req &&
10554 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10556 if (wakeup->four_way_handshake &&
10557 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10559 if (wakeup->rfkill_release &&
10560 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10563 if (wakeup->pattern_idx >= 0 &&
10564 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10565 wakeup->pattern_idx))
10568 if (wakeup->tcp_match)
10569 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10571 if (wakeup->tcp_connlost)
10573 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10575 if (wakeup->tcp_nomoretokens)
10577 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10579 if (wakeup->packet) {
10580 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10581 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10583 if (!wakeup->packet_80211) {
10585 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10587 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10590 if (wakeup->packet_len &&
10591 nla_put_u32(msg, len_attr, wakeup->packet_len))
10594 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10599 nla_nest_end(msg, reasons);
10602 genlmsg_end(msg, hdr);
10604 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10605 nl80211_mlme_mcgrp.id, gfp);
10611 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10614 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10615 enum nl80211_tdls_operation oper,
10616 u16 reason_code, gfp_t gfp)
10618 struct wireless_dev *wdev = dev->ieee80211_ptr;
10619 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10620 struct sk_buff *msg;
10623 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10626 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10630 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10636 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10637 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10638 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10639 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10640 (reason_code > 0 &&
10641 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10642 goto nla_put_failure;
10644 genlmsg_end(msg, hdr);
10646 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10647 nl80211_mlme_mcgrp.id, gfp);
10651 genlmsg_cancel(msg, hdr);
10654 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10656 static int nl80211_netlink_notify(struct notifier_block * nb,
10657 unsigned long state,
10660 struct netlink_notify *notify = _notify;
10661 struct cfg80211_registered_device *rdev;
10662 struct wireless_dev *wdev;
10663 struct cfg80211_beacon_registration *reg, *tmp;
10665 if (state != NETLINK_URELEASE)
10666 return NOTIFY_DONE;
10670 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
10671 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
10672 cfg80211_mlme_unregister_socket(wdev, notify->portid);
10674 spin_lock_bh(&rdev->beacon_registrations_lock);
10675 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10677 if (reg->nlportid == notify->portid) {
10678 list_del(®->list);
10683 spin_unlock_bh(&rdev->beacon_registrations_lock);
10688 return NOTIFY_DONE;
10691 static struct notifier_block nl80211_netlink_notifier = {
10692 .notifier_call = nl80211_netlink_notify,
10695 void cfg80211_ft_event(struct net_device *netdev,
10696 struct cfg80211_ft_event_params *ft_event)
10698 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10699 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10700 struct sk_buff *msg;
10703 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10705 if (!ft_event->target_ap)
10708 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10712 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10718 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10719 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10720 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10722 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10723 if (ft_event->ric_ies)
10724 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10725 ft_event->ric_ies);
10727 genlmsg_end(msg, hdr);
10729 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10730 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10732 EXPORT_SYMBOL(cfg80211_ft_event);
10734 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10736 struct cfg80211_registered_device *rdev;
10737 struct sk_buff *msg;
10741 rdev = wiphy_to_dev(wdev->wiphy);
10742 if (!rdev->crit_proto_nlportid)
10745 nlportid = rdev->crit_proto_nlportid;
10746 rdev->crit_proto_nlportid = 0;
10748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10754 goto nla_put_failure;
10756 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10757 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10758 goto nla_put_failure;
10760 genlmsg_end(msg, hdr);
10762 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10767 genlmsg_cancel(msg, hdr);
10771 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10773 /* initialisation/exit functions */
10775 int nl80211_init(void)
10779 err = genl_register_family_with_ops(&nl80211_fam,
10780 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10784 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10788 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10792 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10796 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10800 #ifdef CONFIG_NL80211_TESTMODE
10801 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10806 err = netlink_register_notifier(&nl80211_netlink_notifier);
10812 genl_unregister_family(&nl80211_fam);
10816 void nl80211_exit(void)
10818 netlink_unregister_notifier(&nl80211_netlink_notifier);
10819 genl_unregister_family(&nl80211_fam);