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;
1196 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1197 sizeof(u32) * dev->wiphy.n_cipher_suites,
1198 dev->wiphy.cipher_suites))
1199 goto nla_put_failure;
1201 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1202 dev->wiphy.max_num_pmkids))
1203 goto nla_put_failure;
1205 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1206 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1207 goto nla_put_failure;
1209 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1210 dev->wiphy.available_antennas_tx) ||
1211 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1212 dev->wiphy.available_antennas_rx))
1213 goto nla_put_failure;
1215 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1216 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1217 dev->wiphy.probe_resp_offload))
1218 goto nla_put_failure;
1220 if ((dev->wiphy.available_antennas_tx ||
1221 dev->wiphy.available_antennas_rx) &&
1222 dev->ops->get_antenna) {
1223 u32 tx_ant = 0, rx_ant = 0;
1225 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1227 if (nla_put_u32(msg,
1228 NL80211_ATTR_WIPHY_ANTENNA_TX,
1231 NL80211_ATTR_WIPHY_ANTENNA_RX,
1233 goto nla_put_failure;
1241 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1242 dev->wiphy.interface_modes))
1243 goto nla_put_failure;
1248 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1250 goto nla_put_failure;
1252 for (band = *band_start; band < IEEE80211_NUM_BANDS; band++) {
1253 struct ieee80211_supported_band *sband;
1255 sband = dev->wiphy.bands[band];
1260 nl_band = nla_nest_start(msg, band);
1262 goto nla_put_failure;
1264 switch (*chan_start) {
1266 if (nl80211_send_band_rateinfo(msg, sband))
1267 goto nla_put_failure;
1272 /* add frequencies */
1273 nl_freqs = nla_nest_start(
1274 msg, NL80211_BAND_ATTR_FREQS);
1276 goto nla_put_failure;
1278 for (i = *chan_start - 1;
1279 i < sband->n_channels;
1281 nl_freq = nla_nest_start(msg, i);
1283 goto nla_put_failure;
1285 chan = &sband->channels[i];
1287 if (nl80211_msg_put_channel(msg, chan,
1289 goto nla_put_failure;
1291 nla_nest_end(msg, nl_freq);
1295 if (i < sband->n_channels)
1296 *chan_start = i + 2;
1299 nla_nest_end(msg, nl_freqs);
1302 nla_nest_end(msg, nl_band);
1305 /* start again here */
1311 nla_nest_end(msg, nl_bands);
1313 if (band < IEEE80211_NUM_BANDS)
1314 *band_start = band + 1;
1318 /* if bands & channels are done, continue outside */
1319 if (*band_start == 0 && *chan_start == 0)
1324 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1326 goto nla_put_failure;
1329 #define CMD(op, n) \
1331 if (dev->ops->op) { \
1333 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1334 goto nla_put_failure; \
1338 CMD(add_virtual_intf, NEW_INTERFACE);
1339 CMD(change_virtual_intf, SET_INTERFACE);
1340 CMD(add_key, NEW_KEY);
1341 CMD(start_ap, START_AP);
1342 CMD(add_station, NEW_STATION);
1343 CMD(add_mpath, NEW_MPATH);
1344 CMD(update_mesh_config, SET_MESH_CONFIG);
1345 CMD(change_bss, SET_BSS);
1346 CMD(auth, AUTHENTICATE);
1347 CMD(assoc, ASSOCIATE);
1348 CMD(deauth, DEAUTHENTICATE);
1349 CMD(disassoc, DISASSOCIATE);
1350 CMD(join_ibss, JOIN_IBSS);
1351 CMD(join_mesh, JOIN_MESH);
1352 CMD(set_pmksa, SET_PMKSA);
1353 CMD(del_pmksa, DEL_PMKSA);
1354 CMD(flush_pmksa, FLUSH_PMKSA);
1355 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1356 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1357 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1358 CMD(mgmt_tx, FRAME);
1359 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1360 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1362 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1363 goto nla_put_failure;
1365 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1366 dev->ops->join_mesh) {
1368 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1369 goto nla_put_failure;
1371 CMD(set_wds_peer, SET_WDS_PEER);
1372 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1373 CMD(tdls_mgmt, TDLS_MGMT);
1374 CMD(tdls_oper, TDLS_OPER);
1376 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1377 CMD(sched_scan_start, START_SCHED_SCAN);
1378 CMD(probe_client, PROBE_CLIENT);
1379 CMD(set_noack_map, SET_NOACK_MAP);
1380 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1382 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1383 goto nla_put_failure;
1385 CMD(start_p2p_device, START_P2P_DEVICE);
1386 CMD(set_mcast_rate, SET_MCAST_RATE);
1388 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1389 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1392 #ifdef CONFIG_NL80211_TESTMODE
1393 CMD(testmode_cmd, TESTMODE);
1398 if (dev->ops->connect || dev->ops->auth) {
1400 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1401 goto nla_put_failure;
1404 if (dev->ops->disconnect || dev->ops->deauth) {
1406 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1407 goto nla_put_failure;
1410 nla_nest_end(msg, nl_cmds);
1415 if (dev->ops->remain_on_channel &&
1416 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1418 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1419 dev->wiphy.max_remain_on_channel_duration))
1420 goto nla_put_failure;
1422 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1423 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1424 goto nla_put_failure;
1426 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1427 goto nla_put_failure;
1433 if (nl80211_send_wowlan(msg, dev, split))
1434 goto nla_put_failure;
1442 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1443 dev->wiphy.software_iftypes))
1444 goto nla_put_failure;
1446 if (nl80211_put_iface_combinations(&dev->wiphy, msg, split))
1447 goto nla_put_failure;
1453 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1454 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1455 dev->wiphy.ap_sme_capa))
1456 goto nla_put_failure;
1458 features = dev->wiphy.features;
1460 * We can only add the per-channel limit information if the
1461 * dump is split, otherwise it makes it too big. Therefore
1462 * only advertise it in that case.
1465 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1466 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1467 goto nla_put_failure;
1469 if (dev->wiphy.ht_capa_mod_mask &&
1470 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1471 sizeof(*dev->wiphy.ht_capa_mod_mask),
1472 dev->wiphy.ht_capa_mod_mask))
1473 goto nla_put_failure;
1475 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1476 dev->wiphy.max_acl_mac_addrs &&
1477 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1478 dev->wiphy.max_acl_mac_addrs))
1479 goto nla_put_failure;
1482 * Any information below this point is only available to
1483 * applications that can deal with it being split. This
1484 * helps ensure that newly added capabilities don't break
1485 * older tools by overrunning their buffers.
1487 * We still increment split_start so that in the split
1488 * case we'll continue with more data in the next round,
1489 * but break unconditionally so unsplit data stops here.
1494 if (dev->wiphy.extended_capabilities &&
1495 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1496 dev->wiphy.extended_capabilities_len,
1497 dev->wiphy.extended_capabilities) ||
1498 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1499 dev->wiphy.extended_capabilities_len,
1500 dev->wiphy.extended_capabilities_mask)))
1501 goto nla_put_failure;
1503 if (dev->wiphy.vht_capa_mod_mask &&
1504 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1505 sizeof(*dev->wiphy.vht_capa_mod_mask),
1506 dev->wiphy.vht_capa_mod_mask))
1507 goto nla_put_failure;
1513 return genlmsg_end(msg, hdr);
1516 genlmsg_cancel(msg, hdr);
1520 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1523 int start = cb->args[0];
1524 struct cfg80211_registered_device *dev;
1525 s64 filter_wiphy = -1;
1527 struct nlattr **tb = nl80211_fam.attrbuf;
1531 res = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1532 tb, nl80211_fam.maxattr, nl80211_policy);
1534 split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1535 if (tb[NL80211_ATTR_WIPHY])
1536 filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1537 if (tb[NL80211_ATTR_WDEV])
1538 filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1539 if (tb[NL80211_ATTR_IFINDEX]) {
1540 struct net_device *netdev;
1541 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1543 netdev = dev_get_by_index(sock_net(skb->sk), ifidx);
1548 if (netdev->ieee80211_ptr) {
1550 netdev->ieee80211_ptr->wiphy);
1551 filter_wiphy = dev->wiphy_idx;
1557 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1558 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1562 if (filter_wiphy != -1 && dev->wiphy_idx != filter_wiphy)
1564 /* attempt to fit multiple wiphy data chunks into the skb */
1566 ret = nl80211_send_wiphy(dev, skb,
1567 NETLINK_CB(cb->skb).portid,
1570 split, &cb->args[1],
1575 * If sending the wiphy data didn't fit (ENOBUFS
1576 * or EMSGSIZE returned), this SKB is still
1577 * empty (so it's not too big because another
1578 * wiphy dataset is already in the skb) and
1579 * we've not tried to adjust the dump allocation
1580 * yet ... then adjust the alloc size to be
1581 * bigger, and return 1 but with the empty skb.
1582 * This results in an empty message being RX'ed
1583 * in userspace, but that is ignored.
1585 * We can then retry with the larger buffer.
1587 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1589 cb->min_dump_alloc < 4096) {
1590 cb->min_dump_alloc = 4096;
1597 } while (cb->args[1] > 0);
1607 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1609 struct sk_buff *msg;
1610 struct cfg80211_registered_device *dev = info->user_ptr[0];
1612 msg = nlmsg_new(4096, GFP_KERNEL);
1616 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1617 false, NULL, NULL, NULL) < 0) {
1622 return genlmsg_reply(msg, info);
1625 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1626 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1627 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1628 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1629 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1630 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1633 static int parse_txq_params(struct nlattr *tb[],
1634 struct ieee80211_txq_params *txq_params)
1636 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1637 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1638 !tb[NL80211_TXQ_ATTR_AIFS])
1641 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1642 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1643 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1644 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1645 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1647 if (txq_params->ac >= NL80211_NUM_ACS)
1653 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1656 * You can only set the channel explicitly for WDS interfaces,
1657 * all others have their channel managed via their respective
1658 * "establish a connection" command (connect, join, ...)
1660 * For AP/GO and mesh mode, the channel can be set with the
1661 * channel userspace API, but is only stored and passed to the
1662 * low-level driver when the AP starts or the mesh is joined.
1663 * This is for backward compatibility, userspace can also give
1664 * the channel in the start-ap or join-mesh commands instead.
1666 * Monitors are special as they are normally slaved to
1667 * whatever else is going on, so they have their own special
1668 * operation to set the monitor channel if possible.
1671 wdev->iftype == NL80211_IFTYPE_AP ||
1672 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1673 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1674 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1677 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1678 struct genl_info *info,
1679 struct cfg80211_chan_def *chandef)
1683 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1686 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1688 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1689 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1690 chandef->center_freq1 = control_freq;
1691 chandef->center_freq2 = 0;
1693 /* Primary channel not allowed */
1694 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1697 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1698 enum nl80211_channel_type chantype;
1700 chantype = nla_get_u32(
1701 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1704 case NL80211_CHAN_NO_HT:
1705 case NL80211_CHAN_HT20:
1706 case NL80211_CHAN_HT40PLUS:
1707 case NL80211_CHAN_HT40MINUS:
1708 cfg80211_chandef_create(chandef, chandef->chan,
1714 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1716 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1717 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1718 chandef->center_freq1 =
1720 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1721 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1722 chandef->center_freq2 =
1724 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1727 if (!cfg80211_chandef_valid(chandef))
1730 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1731 IEEE80211_CHAN_DISABLED))
1737 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1738 struct wireless_dev *wdev,
1739 struct genl_info *info)
1741 struct cfg80211_chan_def chandef;
1743 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1746 iftype = wdev->iftype;
1748 if (!nl80211_can_set_dev_channel(wdev))
1751 result = nl80211_parse_chandef(rdev, info, &chandef);
1756 case NL80211_IFTYPE_AP:
1757 case NL80211_IFTYPE_P2P_GO:
1758 if (wdev->beacon_interval) {
1762 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1766 wdev->preset_chandef = chandef;
1769 case NL80211_IFTYPE_MESH_POINT:
1770 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1772 case NL80211_IFTYPE_MONITOR:
1773 result = cfg80211_set_monitor_channel(rdev, &chandef);
1782 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1784 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1785 struct net_device *netdev = info->user_ptr[1];
1787 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1790 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1793 struct net_device *dev = info->user_ptr[1];
1794 struct wireless_dev *wdev = dev->ieee80211_ptr;
1797 if (!info->attrs[NL80211_ATTR_MAC])
1800 if (netif_running(dev))
1803 if (!rdev->ops->set_wds_peer)
1806 if (wdev->iftype != NL80211_IFTYPE_WDS)
1809 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1810 return rdev_set_wds_peer(rdev, dev, bssid);
1814 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1816 struct cfg80211_registered_device *rdev;
1817 struct net_device *netdev = NULL;
1818 struct wireless_dev *wdev;
1819 int result = 0, rem_txq_params = 0;
1820 struct nlattr *nl_txq_params;
1822 u8 retry_short = 0, retry_long = 0;
1823 u32 frag_threshold = 0, rts_threshold = 0;
1824 u8 coverage_class = 0;
1829 * Try to find the wiphy and netdev. Normally this
1830 * function shouldn't need the netdev, but this is
1831 * done for backward compatibility -- previously
1832 * setting the channel was done per wiphy, but now
1833 * it is per netdev. Previous userland like hostapd
1834 * also passed a netdev to set_wiphy, so that it is
1835 * possible to let that go to the right netdev!
1838 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1839 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1841 netdev = dev_get_by_index(genl_info_net(info), ifindex);
1842 if (netdev && netdev->ieee80211_ptr)
1843 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1849 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1852 return PTR_ERR(rdev);
1857 wdev = netdev->ieee80211_ptr;
1860 * end workaround code, by now the rdev is available
1861 * and locked, and wdev may or may not be NULL.
1864 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
1865 result = cfg80211_dev_rename(
1866 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
1871 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
1872 struct ieee80211_txq_params txq_params;
1873 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
1875 if (!rdev->ops->set_txq_params) {
1876 result = -EOPNOTSUPP;
1885 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
1886 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
1891 if (!netif_running(netdev)) {
1896 nla_for_each_nested(nl_txq_params,
1897 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
1899 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
1900 nla_data(nl_txq_params),
1901 nla_len(nl_txq_params),
1903 result = parse_txq_params(tb, &txq_params);
1907 result = rdev_set_txq_params(rdev, netdev,
1914 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
1915 result = __nl80211_set_channel(rdev,
1916 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
1922 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
1923 struct wireless_dev *txp_wdev = wdev;
1924 enum nl80211_tx_power_setting type;
1927 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
1930 if (!rdev->ops->set_tx_power) {
1931 result = -EOPNOTSUPP;
1935 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
1936 type = nla_get_u32(info->attrs[idx]);
1938 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
1939 (type != NL80211_TX_POWER_AUTOMATIC)) {
1944 if (type != NL80211_TX_POWER_AUTOMATIC) {
1945 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
1946 mbm = nla_get_u32(info->attrs[idx]);
1949 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
1954 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
1955 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
1957 if ((!rdev->wiphy.available_antennas_tx &&
1958 !rdev->wiphy.available_antennas_rx) ||
1959 !rdev->ops->set_antenna) {
1960 result = -EOPNOTSUPP;
1964 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
1965 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
1967 /* reject antenna configurations which don't match the
1968 * available antenna masks, except for the "all" mask */
1969 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
1970 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx))) {
1975 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
1976 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
1978 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
1985 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
1986 retry_short = nla_get_u8(
1987 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
1988 if (retry_short == 0) {
1992 changed |= WIPHY_PARAM_RETRY_SHORT;
1995 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
1996 retry_long = nla_get_u8(
1997 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
1998 if (retry_long == 0) {
2002 changed |= WIPHY_PARAM_RETRY_LONG;
2005 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2006 frag_threshold = nla_get_u32(
2007 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2008 if (frag_threshold < 256) {
2012 if (frag_threshold != (u32) -1) {
2014 * Fragments (apart from the last one) are required to
2015 * have even length. Make the fragmentation code
2016 * simpler by stripping LSB should someone try to use
2017 * odd threshold value.
2019 frag_threshold &= ~0x1;
2021 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2024 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2025 rts_threshold = nla_get_u32(
2026 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2027 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2030 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2031 coverage_class = nla_get_u8(
2032 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2033 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2037 u8 old_retry_short, old_retry_long;
2038 u32 old_frag_threshold, old_rts_threshold;
2039 u8 old_coverage_class;
2041 if (!rdev->ops->set_wiphy_params) {
2042 result = -EOPNOTSUPP;
2046 old_retry_short = rdev->wiphy.retry_short;
2047 old_retry_long = rdev->wiphy.retry_long;
2048 old_frag_threshold = rdev->wiphy.frag_threshold;
2049 old_rts_threshold = rdev->wiphy.rts_threshold;
2050 old_coverage_class = rdev->wiphy.coverage_class;
2052 if (changed & WIPHY_PARAM_RETRY_SHORT)
2053 rdev->wiphy.retry_short = retry_short;
2054 if (changed & WIPHY_PARAM_RETRY_LONG)
2055 rdev->wiphy.retry_long = retry_long;
2056 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2057 rdev->wiphy.frag_threshold = frag_threshold;
2058 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2059 rdev->wiphy.rts_threshold = rts_threshold;
2060 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2061 rdev->wiphy.coverage_class = coverage_class;
2063 result = rdev_set_wiphy_params(rdev, changed);
2065 rdev->wiphy.retry_short = old_retry_short;
2066 rdev->wiphy.retry_long = old_retry_long;
2067 rdev->wiphy.frag_threshold = old_frag_threshold;
2068 rdev->wiphy.rts_threshold = old_rts_threshold;
2069 rdev->wiphy.coverage_class = old_coverage_class;
2079 static inline u64 wdev_id(struct wireless_dev *wdev)
2081 return (u64)wdev->identifier |
2082 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2085 static int nl80211_send_chandef(struct sk_buff *msg,
2086 struct cfg80211_chan_def *chandef)
2088 WARN_ON(!cfg80211_chandef_valid(chandef));
2090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2091 chandef->chan->center_freq))
2093 switch (chandef->width) {
2094 case NL80211_CHAN_WIDTH_20_NOHT:
2095 case NL80211_CHAN_WIDTH_20:
2096 case NL80211_CHAN_WIDTH_40:
2097 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2098 cfg80211_get_chandef_type(chandef)))
2104 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2106 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2108 if (chandef->center_freq2 &&
2109 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2114 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2115 struct cfg80211_registered_device *rdev,
2116 struct wireless_dev *wdev)
2118 struct net_device *dev = wdev->netdev;
2121 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2126 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2127 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2128 goto nla_put_failure;
2130 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2131 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2132 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2133 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2134 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2135 rdev->devlist_generation ^
2136 (cfg80211_rdev_list_generation << 2)))
2137 goto nla_put_failure;
2139 if (rdev->ops->get_channel) {
2141 struct cfg80211_chan_def chandef;
2143 ret = rdev_get_channel(rdev, wdev, &chandef);
2145 if (nl80211_send_chandef(msg, &chandef))
2146 goto nla_put_failure;
2150 if (wdev->ssid_len) {
2151 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2152 goto nla_put_failure;
2155 return genlmsg_end(msg, hdr);
2158 genlmsg_cancel(msg, hdr);
2162 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2166 int wp_start = cb->args[0];
2167 int if_start = cb->args[1];
2168 struct cfg80211_registered_device *rdev;
2169 struct wireless_dev *wdev;
2172 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2173 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2175 if (wp_idx < wp_start) {
2181 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2182 if (if_idx < if_start) {
2186 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2187 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2199 cb->args[0] = wp_idx;
2200 cb->args[1] = if_idx;
2205 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2207 struct sk_buff *msg;
2208 struct cfg80211_registered_device *dev = info->user_ptr[0];
2209 struct wireless_dev *wdev = info->user_ptr[1];
2211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2215 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2221 return genlmsg_reply(msg, info);
2224 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2225 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2226 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2227 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2228 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2229 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2230 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2233 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2235 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2243 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2244 nla, mntr_flags_policy))
2247 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2249 *mntrflags |= (1<<flag);
2254 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2255 struct net_device *netdev, u8 use_4addr,
2256 enum nl80211_iftype iftype)
2259 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2265 case NL80211_IFTYPE_AP_VLAN:
2266 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2269 case NL80211_IFTYPE_STATION:
2270 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2280 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2283 struct vif_params params;
2285 enum nl80211_iftype otype, ntype;
2286 struct net_device *dev = info->user_ptr[1];
2287 u32 _flags, *flags = NULL;
2288 bool change = false;
2290 memset(¶ms, 0, sizeof(params));
2292 otype = ntype = dev->ieee80211_ptr->iftype;
2294 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2295 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2298 if (ntype > NL80211_IFTYPE_MAX)
2302 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2303 struct wireless_dev *wdev = dev->ieee80211_ptr;
2305 if (ntype != NL80211_IFTYPE_MESH_POINT)
2307 if (netif_running(dev))
2311 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2312 IEEE80211_MAX_MESH_ID_LEN);
2313 wdev->mesh_id_up_len =
2314 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2315 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2316 wdev->mesh_id_up_len);
2320 if (info->attrs[NL80211_ATTR_4ADDR]) {
2321 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2323 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2327 params.use_4addr = -1;
2330 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2331 if (ntype != NL80211_IFTYPE_MONITOR)
2333 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2342 if (flags && (*flags & NL80211_MNTR_FLAG_ACTIVE) &&
2343 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2347 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2351 if (!err && params.use_4addr != -1)
2352 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2357 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2359 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2360 struct vif_params params;
2361 struct wireless_dev *wdev;
2362 struct sk_buff *msg;
2364 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2367 memset(¶ms, 0, sizeof(params));
2369 if (!info->attrs[NL80211_ATTR_IFNAME])
2372 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2373 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2374 if (type > NL80211_IFTYPE_MAX)
2378 if (!rdev->ops->add_virtual_intf ||
2379 !(rdev->wiphy.interface_modes & (1 << type)))
2382 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2383 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2385 if (!is_valid_ether_addr(params.macaddr))
2386 return -EADDRNOTAVAIL;
2389 if (info->attrs[NL80211_ATTR_4ADDR]) {
2390 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2391 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2396 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2400 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2401 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2404 if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
2405 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2408 wdev = rdev_add_virtual_intf(rdev,
2409 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2410 type, err ? NULL : &flags, ¶ms);
2413 return PTR_ERR(wdev);
2417 case NL80211_IFTYPE_MESH_POINT:
2418 if (!info->attrs[NL80211_ATTR_MESH_ID])
2421 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2422 IEEE80211_MAX_MESH_ID_LEN);
2423 wdev->mesh_id_up_len =
2424 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2425 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2426 wdev->mesh_id_up_len);
2429 case NL80211_IFTYPE_P2P_DEVICE:
2431 * P2P Device doesn't have a netdev, so doesn't go
2432 * through the netdev notifier and must be added here
2434 mutex_init(&wdev->mtx);
2435 INIT_LIST_HEAD(&wdev->event_list);
2436 spin_lock_init(&wdev->event_lock);
2437 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2438 spin_lock_init(&wdev->mgmt_registrations_lock);
2440 wdev->identifier = ++rdev->wdev_id;
2441 list_add_rcu(&wdev->list, &rdev->wdev_list);
2442 rdev->devlist_generation++;
2448 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2454 return genlmsg_reply(msg, info);
2457 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2460 struct wireless_dev *wdev = info->user_ptr[1];
2462 if (!rdev->ops->del_virtual_intf)
2466 * If we remove a wireless device without a netdev then clear
2467 * user_ptr[1] so that nl80211_post_doit won't dereference it
2468 * to check if it needs to do dev_put(). Otherwise it crashes
2469 * since the wdev has been freed, unlike with a netdev where
2470 * we need the dev_put() for the netdev to really be freed.
2473 info->user_ptr[1] = NULL;
2475 return rdev_del_virtual_intf(rdev, wdev);
2478 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2481 struct net_device *dev = info->user_ptr[1];
2484 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2487 if (!rdev->ops->set_noack_map)
2490 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2492 return rdev_set_noack_map(rdev, dev, noack_map);
2495 struct get_key_cookie {
2496 struct sk_buff *msg;
2501 static void get_key_callback(void *c, struct key_params *params)
2504 struct get_key_cookie *cookie = c;
2507 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2508 params->key_len, params->key)) ||
2510 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2511 params->seq_len, params->seq)) ||
2513 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2515 goto nla_put_failure;
2517 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2519 goto nla_put_failure;
2522 nla_put(cookie->msg, NL80211_KEY_DATA,
2523 params->key_len, params->key)) ||
2525 nla_put(cookie->msg, NL80211_KEY_SEQ,
2526 params->seq_len, params->seq)) ||
2528 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2530 goto nla_put_failure;
2532 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2533 goto nla_put_failure;
2535 nla_nest_end(cookie->msg, key);
2542 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2546 struct net_device *dev = info->user_ptr[1];
2548 const u8 *mac_addr = NULL;
2550 struct get_key_cookie cookie = {
2554 struct sk_buff *msg;
2556 if (info->attrs[NL80211_ATTR_KEY_IDX])
2557 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2562 if (info->attrs[NL80211_ATTR_MAC])
2563 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2565 pairwise = !!mac_addr;
2566 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2567 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2568 if (kt >= NUM_NL80211_KEYTYPES)
2570 if (kt != NL80211_KEYTYPE_GROUP &&
2571 kt != NL80211_KEYTYPE_PAIRWISE)
2573 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2576 if (!rdev->ops->get_key)
2579 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2583 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2584 NL80211_CMD_NEW_KEY);
2586 return PTR_ERR(hdr);
2589 cookie.idx = key_idx;
2591 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2592 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2593 goto nla_put_failure;
2595 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2596 goto nla_put_failure;
2598 if (pairwise && mac_addr &&
2599 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2602 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2609 goto nla_put_failure;
2611 genlmsg_end(msg, hdr);
2612 return genlmsg_reply(msg, info);
2621 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2624 struct key_parse key;
2626 struct net_device *dev = info->user_ptr[1];
2628 err = nl80211_parse_key(info, &key);
2635 /* only support setting default key */
2636 if (!key.def && !key.defmgmt)
2639 wdev_lock(dev->ieee80211_ptr);
2642 if (!rdev->ops->set_default_key) {
2647 err = nl80211_key_allowed(dev->ieee80211_ptr);
2651 err = rdev_set_default_key(rdev, dev, key.idx,
2652 key.def_uni, key.def_multi);
2657 #ifdef CONFIG_CFG80211_WEXT
2658 dev->ieee80211_ptr->wext.default_key = key.idx;
2661 if (key.def_uni || !key.def_multi) {
2666 if (!rdev->ops->set_default_mgmt_key) {
2671 err = nl80211_key_allowed(dev->ieee80211_ptr);
2675 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2679 #ifdef CONFIG_CFG80211_WEXT
2680 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2685 wdev_unlock(dev->ieee80211_ptr);
2690 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2694 struct net_device *dev = info->user_ptr[1];
2695 struct key_parse key;
2696 const u8 *mac_addr = NULL;
2698 err = nl80211_parse_key(info, &key);
2705 if (info->attrs[NL80211_ATTR_MAC])
2706 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2708 if (key.type == -1) {
2710 key.type = NL80211_KEYTYPE_PAIRWISE;
2712 key.type = NL80211_KEYTYPE_GROUP;
2716 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2717 key.type != NL80211_KEYTYPE_GROUP)
2720 if (!rdev->ops->add_key)
2723 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2724 key.type == NL80211_KEYTYPE_PAIRWISE,
2728 wdev_lock(dev->ieee80211_ptr);
2729 err = nl80211_key_allowed(dev->ieee80211_ptr);
2731 err = rdev_add_key(rdev, dev, key.idx,
2732 key.type == NL80211_KEYTYPE_PAIRWISE,
2734 wdev_unlock(dev->ieee80211_ptr);
2739 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2743 struct net_device *dev = info->user_ptr[1];
2744 u8 *mac_addr = NULL;
2745 struct key_parse key;
2747 err = nl80211_parse_key(info, &key);
2751 if (info->attrs[NL80211_ATTR_MAC])
2752 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2754 if (key.type == -1) {
2756 key.type = NL80211_KEYTYPE_PAIRWISE;
2758 key.type = NL80211_KEYTYPE_GROUP;
2762 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2763 key.type != NL80211_KEYTYPE_GROUP)
2766 if (!rdev->ops->del_key)
2769 wdev_lock(dev->ieee80211_ptr);
2770 err = nl80211_key_allowed(dev->ieee80211_ptr);
2772 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2773 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2777 err = rdev_del_key(rdev, dev, key.idx,
2778 key.type == NL80211_KEYTYPE_PAIRWISE,
2781 #ifdef CONFIG_CFG80211_WEXT
2783 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2784 dev->ieee80211_ptr->wext.default_key = -1;
2785 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2786 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2789 wdev_unlock(dev->ieee80211_ptr);
2794 /* This function returns an error or the number of nested attributes */
2795 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2797 struct nlattr *attr;
2798 int n_entries = 0, tmp;
2800 nla_for_each_nested(attr, nl_attr, tmp) {
2801 if (nla_len(attr) != ETH_ALEN)
2811 * This function parses ACL information and allocates memory for ACL data.
2812 * On successful return, the calling function is responsible to free the
2813 * ACL buffer returned by this function.
2815 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2816 struct genl_info *info)
2818 enum nl80211_acl_policy acl_policy;
2819 struct nlattr *attr;
2820 struct cfg80211_acl_data *acl;
2821 int i = 0, n_entries, tmp;
2823 if (!wiphy->max_acl_mac_addrs)
2824 return ERR_PTR(-EOPNOTSUPP);
2826 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2827 return ERR_PTR(-EINVAL);
2829 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2830 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2831 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2832 return ERR_PTR(-EINVAL);
2834 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2835 return ERR_PTR(-EINVAL);
2837 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2839 return ERR_PTR(n_entries);
2841 if (n_entries > wiphy->max_acl_mac_addrs)
2842 return ERR_PTR(-ENOTSUPP);
2844 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2847 return ERR_PTR(-ENOMEM);
2849 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2850 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2854 acl->n_acl_entries = n_entries;
2855 acl->acl_policy = acl_policy;
2860 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2863 struct net_device *dev = info->user_ptr[1];
2864 struct cfg80211_acl_data *acl;
2867 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2868 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2871 if (!dev->ieee80211_ptr->beacon_interval)
2874 acl = parse_acl_data(&rdev->wiphy, info);
2876 return PTR_ERR(acl);
2878 err = rdev_set_mac_acl(rdev, dev, acl);
2885 static int nl80211_parse_beacon(struct genl_info *info,
2886 struct cfg80211_beacon_data *bcn)
2888 bool haveinfo = false;
2890 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_BEACON_TAIL]) ||
2891 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]) ||
2892 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
2893 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]))
2896 memset(bcn, 0, sizeof(*bcn));
2898 if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
2899 bcn->head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2900 bcn->head_len = nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
2906 if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
2907 bcn->tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2909 nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
2916 if (info->attrs[NL80211_ATTR_IE]) {
2917 bcn->beacon_ies = nla_data(info->attrs[NL80211_ATTR_IE]);
2918 bcn->beacon_ies_len = nla_len(info->attrs[NL80211_ATTR_IE]);
2921 if (info->attrs[NL80211_ATTR_IE_PROBE_RESP]) {
2922 bcn->proberesp_ies =
2923 nla_data(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2924 bcn->proberesp_ies_len =
2925 nla_len(info->attrs[NL80211_ATTR_IE_PROBE_RESP]);
2928 if (info->attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
2929 bcn->assocresp_ies =
2930 nla_data(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2931 bcn->assocresp_ies_len =
2932 nla_len(info->attrs[NL80211_ATTR_IE_ASSOC_RESP]);
2935 if (info->attrs[NL80211_ATTR_PROBE_RESP]) {
2937 nla_data(info->attrs[NL80211_ATTR_PROBE_RESP]);
2938 bcn->probe_resp_len =
2939 nla_len(info->attrs[NL80211_ATTR_PROBE_RESP]);
2945 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
2946 struct cfg80211_ap_settings *params)
2948 struct wireless_dev *wdev;
2951 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2952 if (wdev->iftype != NL80211_IFTYPE_AP &&
2953 wdev->iftype != NL80211_IFTYPE_P2P_GO)
2956 if (!wdev->preset_chandef.chan)
2959 params->chandef = wdev->preset_chandef;
2967 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
2968 enum nl80211_auth_type auth_type,
2969 enum nl80211_commands cmd)
2971 if (auth_type > NL80211_AUTHTYPE_MAX)
2975 case NL80211_CMD_AUTHENTICATE:
2976 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
2977 auth_type == NL80211_AUTHTYPE_SAE)
2980 case NL80211_CMD_CONNECT:
2981 case NL80211_CMD_START_AP:
2982 /* SAE not supported yet */
2983 if (auth_type == NL80211_AUTHTYPE_SAE)
2991 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
2993 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2994 struct net_device *dev = info->user_ptr[1];
2995 struct wireless_dev *wdev = dev->ieee80211_ptr;
2996 struct cfg80211_ap_settings params;
2998 u8 radar_detect_width = 0;
3000 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3001 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3004 if (!rdev->ops->start_ap)
3007 if (wdev->beacon_interval)
3010 memset(¶ms, 0, sizeof(params));
3012 /* these are required for START_AP */
3013 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3014 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3015 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3018 err = nl80211_parse_beacon(info, ¶ms.beacon);
3022 params.beacon_interval =
3023 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3024 params.dtim_period =
3025 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3027 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3032 * In theory, some of these attributes should be required here
3033 * but since they were not used when the command was originally
3034 * added, keep them optional for old user space programs to let
3035 * them continue to work with drivers that do not need the
3036 * additional information -- drivers must check!
3038 if (info->attrs[NL80211_ATTR_SSID]) {
3039 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3041 nla_len(info->attrs[NL80211_ATTR_SSID]);
3042 if (params.ssid_len == 0 ||
3043 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3047 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3048 params.hidden_ssid = nla_get_u32(
3049 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3050 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3051 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3052 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3056 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3058 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3059 params.auth_type = nla_get_u32(
3060 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3061 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3062 NL80211_CMD_START_AP))
3065 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3067 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3068 NL80211_MAX_NR_CIPHER_SUITES);
3072 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3073 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3075 params.inactivity_timeout = nla_get_u16(
3076 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3079 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3080 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3082 params.p2p_ctwindow =
3083 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3084 if (params.p2p_ctwindow > 127)
3086 if (params.p2p_ctwindow != 0 &&
3087 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3091 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3094 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3096 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3099 params.p2p_opp_ps = tmp;
3100 if (params.p2p_opp_ps != 0 &&
3101 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3105 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3106 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3109 } else if (wdev->preset_chandef.chan) {
3110 params.chandef = wdev->preset_chandef;
3111 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3114 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3117 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3121 radar_detect_width = BIT(params.chandef.width);
3122 params.radar_required = true;
3125 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3126 params.chandef.chan,
3128 radar_detect_width);
3132 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3133 params.acl = parse_acl_data(&rdev->wiphy, info);
3134 if (IS_ERR(params.acl))
3135 return PTR_ERR(params.acl);
3138 err = rdev_start_ap(rdev, dev, ¶ms);
3140 wdev->preset_chandef = params.chandef;
3141 wdev->beacon_interval = params.beacon_interval;
3142 wdev->channel = params.chandef.chan;
3143 wdev->ssid_len = params.ssid_len;
3144 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3152 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3154 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3155 struct net_device *dev = info->user_ptr[1];
3156 struct wireless_dev *wdev = dev->ieee80211_ptr;
3157 struct cfg80211_beacon_data params;
3160 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3161 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3164 if (!rdev->ops->change_beacon)
3167 if (!wdev->beacon_interval)
3170 err = nl80211_parse_beacon(info, ¶ms);
3174 return rdev_change_beacon(rdev, dev, ¶ms);
3177 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3179 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3180 struct net_device *dev = info->user_ptr[1];
3182 return cfg80211_stop_ap(rdev, dev);
3185 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3186 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3187 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3188 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3189 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3190 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3191 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3194 static int parse_station_flags(struct genl_info *info,
3195 enum nl80211_iftype iftype,
3196 struct station_parameters *params)
3198 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3203 * Try parsing the new attribute first so userspace
3204 * can specify both for older kernels.
3206 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3208 struct nl80211_sta_flag_update *sta_flags;
3210 sta_flags = nla_data(nla);
3211 params->sta_flags_mask = sta_flags->mask;
3212 params->sta_flags_set = sta_flags->set;
3213 params->sta_flags_set &= params->sta_flags_mask;
3214 if ((params->sta_flags_mask |
3215 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3220 /* if present, parse the old attribute */
3222 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3226 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3227 nla, sta_flags_policy))
3231 * Only allow certain flags for interface types so that
3232 * other attributes are silently ignored. Remember that
3233 * this is backward compatibility code with old userspace
3234 * and shouldn't be hit in other cases anyway.
3237 case NL80211_IFTYPE_AP:
3238 case NL80211_IFTYPE_AP_VLAN:
3239 case NL80211_IFTYPE_P2P_GO:
3240 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3241 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3242 BIT(NL80211_STA_FLAG_WME) |
3243 BIT(NL80211_STA_FLAG_MFP);
3245 case NL80211_IFTYPE_P2P_CLIENT:
3246 case NL80211_IFTYPE_STATION:
3247 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3248 BIT(NL80211_STA_FLAG_TDLS_PEER);
3250 case NL80211_IFTYPE_MESH_POINT:
3251 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3252 BIT(NL80211_STA_FLAG_MFP) |
3253 BIT(NL80211_STA_FLAG_AUTHORIZED);
3258 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3260 params->sta_flags_set |= (1<<flag);
3262 /* no longer support new API additions in old API */
3263 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3271 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3274 struct nlattr *rate;
3278 rate = nla_nest_start(msg, attr);
3282 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3283 bitrate = cfg80211_calculate_bitrate(info);
3284 /* report 16-bit bitrate only if we can */
3285 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3287 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3289 if (bitrate_compat > 0 &&
3290 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3293 if (info->flags & RATE_INFO_FLAGS_MCS) {
3294 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3296 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3297 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3299 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3300 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3302 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3303 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3305 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3307 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3308 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3310 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3311 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3313 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3314 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3316 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3317 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3319 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3320 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3324 nla_nest_end(msg, rate);
3328 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3337 attr = nla_nest_start(msg, id);
3341 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3342 if (!(mask & BIT(i)))
3345 if (nla_put_u8(msg, i, signal[i]))
3349 nla_nest_end(msg, attr);
3354 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3356 struct cfg80211_registered_device *rdev,
3357 struct net_device *dev,
3358 const u8 *mac_addr, struct station_info *sinfo)
3361 struct nlattr *sinfoattr, *bss_param;
3363 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3367 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3368 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3369 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3370 goto nla_put_failure;
3372 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3374 goto nla_put_failure;
3375 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3376 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3377 sinfo->connected_time))
3378 goto nla_put_failure;
3379 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3380 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3381 sinfo->inactive_time))
3382 goto nla_put_failure;
3383 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3384 STATION_INFO_RX_BYTES64)) &&
3385 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3386 (u32)sinfo->rx_bytes))
3387 goto nla_put_failure;
3388 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3389 STATION_INFO_TX_BYTES64)) &&
3390 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3391 (u32)sinfo->tx_bytes))
3392 goto nla_put_failure;
3393 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3394 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3396 goto nla_put_failure;
3397 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3398 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3400 goto nla_put_failure;
3401 if ((sinfo->filled & STATION_INFO_LLID) &&
3402 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3403 goto nla_put_failure;
3404 if ((sinfo->filled & STATION_INFO_PLID) &&
3405 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3406 goto nla_put_failure;
3407 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3408 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3409 sinfo->plink_state))
3410 goto nla_put_failure;
3411 switch (rdev->wiphy.signal_type) {
3412 case CFG80211_SIGNAL_TYPE_MBM:
3413 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3414 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3416 goto nla_put_failure;
3417 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3418 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3420 goto nla_put_failure;
3425 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3426 if (!nl80211_put_signal(msg, sinfo->chains,
3427 sinfo->chain_signal,
3428 NL80211_STA_INFO_CHAIN_SIGNAL))
3429 goto nla_put_failure;
3431 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3432 if (!nl80211_put_signal(msg, sinfo->chains,
3433 sinfo->chain_signal_avg,
3434 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3435 goto nla_put_failure;
3437 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3438 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3439 NL80211_STA_INFO_TX_BITRATE))
3440 goto nla_put_failure;
3442 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3443 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3444 NL80211_STA_INFO_RX_BITRATE))
3445 goto nla_put_failure;
3447 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3448 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3450 goto nla_put_failure;
3451 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3452 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3454 goto nla_put_failure;
3455 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3456 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3458 goto nla_put_failure;
3459 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3460 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3462 goto nla_put_failure;
3463 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3464 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3465 sinfo->beacon_loss_count))
3466 goto nla_put_failure;
3467 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3468 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3470 goto nla_put_failure;
3471 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3472 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3474 goto nla_put_failure;
3475 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3476 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3478 goto nla_put_failure;
3479 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3480 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3482 goto nla_put_failure;
3484 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3485 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3486 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3487 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3488 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3489 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3490 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3491 sinfo->bss_param.dtim_period) ||
3492 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3493 sinfo->bss_param.beacon_interval))
3494 goto nla_put_failure;
3496 nla_nest_end(msg, bss_param);
3498 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3499 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3500 sizeof(struct nl80211_sta_flag_update),
3502 goto nla_put_failure;
3503 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3504 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3506 goto nla_put_failure;
3507 nla_nest_end(msg, sinfoattr);
3509 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3510 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3511 sinfo->assoc_req_ies))
3512 goto nla_put_failure;
3514 return genlmsg_end(msg, hdr);
3517 genlmsg_cancel(msg, hdr);
3521 static int nl80211_dump_station(struct sk_buff *skb,
3522 struct netlink_callback *cb)
3524 struct station_info sinfo;
3525 struct cfg80211_registered_device *dev;
3526 struct wireless_dev *wdev;
3527 u8 mac_addr[ETH_ALEN];
3528 int sta_idx = cb->args[2];
3531 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3535 if (!wdev->netdev) {
3540 if (!dev->ops->dump_station) {
3546 memset(&sinfo, 0, sizeof(sinfo));
3547 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3554 if (nl80211_send_station(skb,
3555 NETLINK_CB(cb->skb).portid,
3556 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3557 dev, wdev->netdev, mac_addr,
3566 cb->args[2] = sta_idx;
3569 nl80211_finish_wdev_dump(dev);
3574 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3577 struct net_device *dev = info->user_ptr[1];
3578 struct station_info sinfo;
3579 struct sk_buff *msg;
3580 u8 *mac_addr = NULL;
3583 memset(&sinfo, 0, sizeof(sinfo));
3585 if (!info->attrs[NL80211_ATTR_MAC])
3588 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3590 if (!rdev->ops->get_station)
3593 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3601 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3602 rdev, dev, mac_addr, &sinfo) < 0) {
3607 return genlmsg_reply(msg, info);
3610 int cfg80211_check_station_change(struct wiphy *wiphy,
3611 struct station_parameters *params,
3612 enum cfg80211_station_type statype)
3614 if (params->listen_interval != -1)
3619 /* When you run into this, adjust the code below for the new flag */
3620 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3623 case CFG80211_STA_MESH_PEER_KERNEL:
3624 case CFG80211_STA_MESH_PEER_USER:
3626 * No ignoring the TDLS flag here -- the userspace mesh
3627 * code doesn't have the bug of including TDLS in the
3630 if (params->sta_flags_mask &
3631 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3632 BIT(NL80211_STA_FLAG_MFP) |
3633 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3636 case CFG80211_STA_TDLS_PEER_SETUP:
3637 case CFG80211_STA_TDLS_PEER_ACTIVE:
3638 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3640 /* ignore since it can't change */
3641 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3644 /* disallow mesh-specific things */
3645 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3647 if (params->local_pm)
3649 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3653 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3654 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3655 /* TDLS can't be set, ... */
3656 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3659 * ... but don't bother the driver with it. This works around
3660 * a hostapd/wpa_supplicant issue -- it always includes the
3661 * TLDS_PEER flag in the mask even for AP mode.
3663 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3666 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3667 /* reject other things that can't change */
3668 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3670 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3672 if (params->supported_rates)
3674 if (params->ext_capab || params->ht_capa || params->vht_capa)
3678 if (statype != CFG80211_STA_AP_CLIENT) {
3684 case CFG80211_STA_AP_MLME_CLIENT:
3685 /* Use this only for authorizing/unauthorizing a station */
3686 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3689 case CFG80211_STA_AP_CLIENT:
3690 /* accept only the listed bits */
3691 if (params->sta_flags_mask &
3692 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3693 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3694 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3695 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3696 BIT(NL80211_STA_FLAG_WME) |
3697 BIT(NL80211_STA_FLAG_MFP)))
3700 /* but authenticated/associated only if driver handles it */
3701 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3702 params->sta_flags_mask &
3703 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3704 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3707 case CFG80211_STA_IBSS:
3708 case CFG80211_STA_AP_STA:
3709 /* reject any changes other than AUTHORIZED */
3710 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3713 case CFG80211_STA_TDLS_PEER_SETUP:
3714 /* reject any changes other than AUTHORIZED or WME */
3715 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3716 BIT(NL80211_STA_FLAG_WME)))
3718 /* force (at least) rates when authorizing */
3719 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3720 !params->supported_rates)
3723 case CFG80211_STA_TDLS_PEER_ACTIVE:
3724 /* reject any changes */
3726 case CFG80211_STA_MESH_PEER_KERNEL:
3727 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3730 case CFG80211_STA_MESH_PEER_USER:
3731 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3738 EXPORT_SYMBOL(cfg80211_check_station_change);
3741 * Get vlan interface making sure it is running and on the right wiphy.
3743 static struct net_device *get_vlan(struct genl_info *info,
3744 struct cfg80211_registered_device *rdev)
3746 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3747 struct net_device *v;
3753 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3755 return ERR_PTR(-ENODEV);
3757 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3762 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3763 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3764 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3769 if (!netif_running(v)) {
3777 return ERR_PTR(ret);
3780 static struct nla_policy
3781 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3782 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3783 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3786 static int nl80211_parse_sta_wme(struct genl_info *info,
3787 struct station_parameters *params)
3789 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3793 /* parse WME attributes if present */
3794 if (!info->attrs[NL80211_ATTR_STA_WME])
3797 nla = info->attrs[NL80211_ATTR_STA_WME];
3798 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3799 nl80211_sta_wme_policy);
3803 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3804 params->uapsd_queues = nla_get_u8(
3805 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3806 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3809 if (tb[NL80211_STA_WME_MAX_SP])
3810 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3812 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3815 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3820 static int nl80211_set_station_tdls(struct genl_info *info,
3821 struct station_parameters *params)
3823 /* Dummy STA entry gets updated once the peer capabilities are known */
3824 if (info->attrs[NL80211_ATTR_PEER_AID])
3825 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3826 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3828 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3829 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3831 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3833 return nl80211_parse_sta_wme(info, params);
3836 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
3838 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3839 struct net_device *dev = info->user_ptr[1];
3840 struct station_parameters params;
3844 memset(¶ms, 0, sizeof(params));
3846 params.listen_interval = -1;
3848 if (!rdev->ops->change_station)
3851 if (info->attrs[NL80211_ATTR_STA_AID])
3854 if (!info->attrs[NL80211_ATTR_MAC])
3857 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3859 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
3860 params.supported_rates =
3861 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3862 params.supported_rates_len =
3863 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3866 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3868 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3869 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3872 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3874 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3875 params.ext_capab_len =
3876 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3879 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3882 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
3885 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
3886 params.plink_action =
3887 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
3888 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
3892 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
3893 params.plink_state =
3894 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
3895 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
3897 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
3900 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
3901 enum nl80211_mesh_power_mode pm = nla_get_u32(
3902 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
3904 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
3905 pm > NL80211_MESH_POWER_MAX)
3908 params.local_pm = pm;
3911 /* Include parameters for TDLS peer (will check later) */
3912 err = nl80211_set_station_tdls(info, ¶ms);
3916 params.vlan = get_vlan(info, rdev);
3917 if (IS_ERR(params.vlan))
3918 return PTR_ERR(params.vlan);
3920 switch (dev->ieee80211_ptr->iftype) {
3921 case NL80211_IFTYPE_AP:
3922 case NL80211_IFTYPE_AP_VLAN:
3923 case NL80211_IFTYPE_P2P_GO:
3924 case NL80211_IFTYPE_P2P_CLIENT:
3925 case NL80211_IFTYPE_STATION:
3926 case NL80211_IFTYPE_ADHOC:
3927 case NL80211_IFTYPE_MESH_POINT:
3934 /* driver will call cfg80211_check_station_change() */
3935 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
3939 dev_put(params.vlan);
3944 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
3946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3948 struct net_device *dev = info->user_ptr[1];
3949 struct station_parameters params;
3950 u8 *mac_addr = NULL;
3952 memset(¶ms, 0, sizeof(params));
3954 if (!rdev->ops->add_station)
3957 if (!info->attrs[NL80211_ATTR_MAC])
3960 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
3963 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
3966 if (!info->attrs[NL80211_ATTR_STA_AID] &&
3967 !info->attrs[NL80211_ATTR_PEER_AID])
3970 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3971 params.supported_rates =
3972 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3973 params.supported_rates_len =
3974 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
3975 params.listen_interval =
3976 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
3978 if (info->attrs[NL80211_ATTR_PEER_AID])
3979 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3981 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
3982 if (!params.aid || params.aid > IEEE80211_MAX_AID)
3985 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
3987 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
3988 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
3991 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
3993 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3994 params.ext_capab_len =
3995 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
3998 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4000 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4002 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4004 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4006 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4007 params.plink_action =
4008 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4009 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4013 err = nl80211_parse_sta_wme(info, ¶ms);
4017 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4020 /* When you run into this, adjust the code below for the new flag */
4021 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4023 switch (dev->ieee80211_ptr->iftype) {
4024 case NL80211_IFTYPE_AP:
4025 case NL80211_IFTYPE_AP_VLAN:
4026 case NL80211_IFTYPE_P2P_GO:
4027 /* ignore WME attributes if iface/sta is not capable */
4028 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4029 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4030 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4032 /* TDLS peers cannot be added */
4033 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4034 info->attrs[NL80211_ATTR_PEER_AID])
4036 /* but don't bother the driver with it */
4037 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4039 /* allow authenticated/associated only if driver handles it */
4040 if (!(rdev->wiphy.features &
4041 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4042 params.sta_flags_mask &
4043 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4044 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4047 /* must be last in here for error handling */
4048 params.vlan = get_vlan(info, rdev);
4049 if (IS_ERR(params.vlan))
4050 return PTR_ERR(params.vlan);
4052 case NL80211_IFTYPE_MESH_POINT:
4053 /* ignore uAPSD data */
4054 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4056 /* associated is disallowed */
4057 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4059 /* TDLS peers cannot be added */
4060 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4061 info->attrs[NL80211_ATTR_PEER_AID])
4064 case NL80211_IFTYPE_STATION:
4065 case NL80211_IFTYPE_P2P_CLIENT:
4066 /* ignore uAPSD data */
4067 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4069 /* these are disallowed */
4070 if (params.sta_flags_mask &
4071 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4072 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4074 /* Only TDLS peers can be added */
4075 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4077 /* Can only add if TDLS ... */
4078 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4080 /* ... with external setup is supported */
4081 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4084 * Older wpa_supplicant versions always mark the TDLS peer
4085 * as authorized, but it shouldn't yet be.
4087 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4093 /* be aware of params.vlan when changing code here */
4095 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4098 dev_put(params.vlan);
4102 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4104 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4105 struct net_device *dev = info->user_ptr[1];
4106 u8 *mac_addr = NULL;
4108 if (info->attrs[NL80211_ATTR_MAC])
4109 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4111 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4112 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4113 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4114 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4117 if (!rdev->ops->del_station)
4120 return rdev_del_station(rdev, dev, mac_addr);
4123 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4124 int flags, struct net_device *dev,
4125 u8 *dst, u8 *next_hop,
4126 struct mpath_info *pinfo)
4129 struct nlattr *pinfoattr;
4131 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4135 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4136 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4137 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4138 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4139 goto nla_put_failure;
4141 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4143 goto nla_put_failure;
4144 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4145 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4147 goto nla_put_failure;
4148 if (((pinfo->filled & MPATH_INFO_SN) &&
4149 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4150 ((pinfo->filled & MPATH_INFO_METRIC) &&
4151 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4153 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4154 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4156 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4157 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4159 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4160 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4161 pinfo->discovery_timeout)) ||
4162 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4163 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4164 pinfo->discovery_retries)))
4165 goto nla_put_failure;
4167 nla_nest_end(msg, pinfoattr);
4169 return genlmsg_end(msg, hdr);
4172 genlmsg_cancel(msg, hdr);
4176 static int nl80211_dump_mpath(struct sk_buff *skb,
4177 struct netlink_callback *cb)
4179 struct mpath_info pinfo;
4180 struct cfg80211_registered_device *dev;
4181 struct wireless_dev *wdev;
4183 u8 next_hop[ETH_ALEN];
4184 int path_idx = cb->args[2];
4187 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4191 if (!dev->ops->dump_mpath) {
4196 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4202 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4209 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4210 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4211 wdev->netdev, dst, next_hop,
4220 cb->args[2] = path_idx;
4223 nl80211_finish_wdev_dump(dev);
4227 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4231 struct net_device *dev = info->user_ptr[1];
4232 struct mpath_info pinfo;
4233 struct sk_buff *msg;
4235 u8 next_hop[ETH_ALEN];
4237 memset(&pinfo, 0, sizeof(pinfo));
4239 if (!info->attrs[NL80211_ATTR_MAC])
4242 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4244 if (!rdev->ops->get_mpath)
4247 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4250 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4254 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4258 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4259 dev, dst, next_hop, &pinfo) < 0) {
4264 return genlmsg_reply(msg, info);
4267 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4270 struct net_device *dev = info->user_ptr[1];
4272 u8 *next_hop = NULL;
4274 if (!info->attrs[NL80211_ATTR_MAC])
4277 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4280 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4281 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4283 if (!rdev->ops->change_mpath)
4286 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4289 return rdev_change_mpath(rdev, dev, dst, next_hop);
4292 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4295 struct net_device *dev = info->user_ptr[1];
4297 u8 *next_hop = NULL;
4299 if (!info->attrs[NL80211_ATTR_MAC])
4302 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4305 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4306 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4308 if (!rdev->ops->add_mpath)
4311 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4314 return rdev_add_mpath(rdev, dev, dst, next_hop);
4317 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4320 struct net_device *dev = info->user_ptr[1];
4323 if (info->attrs[NL80211_ATTR_MAC])
4324 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4326 if (!rdev->ops->del_mpath)
4329 return rdev_del_mpath(rdev, dev, dst);
4332 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4334 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4335 struct net_device *dev = info->user_ptr[1];
4336 struct bss_parameters params;
4338 memset(¶ms, 0, sizeof(params));
4339 /* default to not changing parameters */
4340 params.use_cts_prot = -1;
4341 params.use_short_preamble = -1;
4342 params.use_short_slot_time = -1;
4343 params.ap_isolate = -1;
4344 params.ht_opmode = -1;
4345 params.p2p_ctwindow = -1;
4346 params.p2p_opp_ps = -1;
4348 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4349 params.use_cts_prot =
4350 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4351 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4352 params.use_short_preamble =
4353 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4354 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4355 params.use_short_slot_time =
4356 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4357 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4358 params.basic_rates =
4359 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4360 params.basic_rates_len =
4361 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4363 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4364 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4365 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4367 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4369 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4372 params.p2p_ctwindow =
4373 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4374 if (params.p2p_ctwindow < 0)
4376 if (params.p2p_ctwindow != 0 &&
4377 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4381 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4384 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4386 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4389 params.p2p_opp_ps = tmp;
4390 if (params.p2p_opp_ps &&
4391 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4395 if (!rdev->ops->change_bss)
4398 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4399 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4402 return rdev_change_bss(rdev, dev, ¶ms);
4405 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4406 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4407 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4408 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4409 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4410 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4411 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4414 static int parse_reg_rule(struct nlattr *tb[],
4415 struct ieee80211_reg_rule *reg_rule)
4417 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4418 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4420 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4422 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4424 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4426 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4428 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4431 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4433 freq_range->start_freq_khz =
4434 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4435 freq_range->end_freq_khz =
4436 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4437 freq_range->max_bandwidth_khz =
4438 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4440 power_rule->max_eirp =
4441 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4443 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4444 power_rule->max_antenna_gain =
4445 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4450 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4454 enum nl80211_user_reg_hint_type user_reg_hint_type;
4457 * You should only get this when cfg80211 hasn't yet initialized
4458 * completely when built-in to the kernel right between the time
4459 * window between nl80211_init() and regulatory_init(), if that is
4462 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4463 return -EINPROGRESS;
4465 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4468 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4470 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4471 user_reg_hint_type =
4472 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4474 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4476 switch (user_reg_hint_type) {
4477 case NL80211_USER_REG_HINT_USER:
4478 case NL80211_USER_REG_HINT_CELL_BASE:
4484 r = regulatory_hint_user(data, user_reg_hint_type);
4489 static int nl80211_get_mesh_config(struct sk_buff *skb,
4490 struct genl_info *info)
4492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4493 struct net_device *dev = info->user_ptr[1];
4494 struct wireless_dev *wdev = dev->ieee80211_ptr;
4495 struct mesh_config cur_params;
4498 struct nlattr *pinfoattr;
4499 struct sk_buff *msg;
4501 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4504 if (!rdev->ops->get_mesh_config)
4508 /* If not connected, get default parameters */
4509 if (!wdev->mesh_id_len)
4510 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4512 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4518 /* Draw up a netlink message to send back */
4519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4522 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4523 NL80211_CMD_GET_MESH_CONFIG);
4526 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4528 goto nla_put_failure;
4529 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4530 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4531 cur_params.dot11MeshRetryTimeout) ||
4532 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4533 cur_params.dot11MeshConfirmTimeout) ||
4534 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4535 cur_params.dot11MeshHoldingTimeout) ||
4536 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4537 cur_params.dot11MeshMaxPeerLinks) ||
4538 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4539 cur_params.dot11MeshMaxRetries) ||
4540 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4541 cur_params.dot11MeshTTL) ||
4542 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4543 cur_params.element_ttl) ||
4544 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4545 cur_params.auto_open_plinks) ||
4546 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4547 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4548 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4549 cur_params.dot11MeshHWMPmaxPREQretries) ||
4550 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4551 cur_params.path_refresh_time) ||
4552 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4553 cur_params.min_discovery_timeout) ||
4554 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4555 cur_params.dot11MeshHWMPactivePathTimeout) ||
4556 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4557 cur_params.dot11MeshHWMPpreqMinInterval) ||
4558 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4559 cur_params.dot11MeshHWMPperrMinInterval) ||
4560 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4561 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4562 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4563 cur_params.dot11MeshHWMPRootMode) ||
4564 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4565 cur_params.dot11MeshHWMPRannInterval) ||
4566 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4567 cur_params.dot11MeshGateAnnouncementProtocol) ||
4568 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4569 cur_params.dot11MeshForwarding) ||
4570 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4571 cur_params.rssi_threshold) ||
4572 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4573 cur_params.ht_opmode) ||
4574 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4575 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4576 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4577 cur_params.dot11MeshHWMProotInterval) ||
4578 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4579 cur_params.dot11MeshHWMPconfirmationInterval) ||
4580 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4581 cur_params.power_mode) ||
4582 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4583 cur_params.dot11MeshAwakeWindowDuration) ||
4584 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4585 cur_params.plink_timeout))
4586 goto nla_put_failure;
4587 nla_nest_end(msg, pinfoattr);
4588 genlmsg_end(msg, hdr);
4589 return genlmsg_reply(msg, info);
4592 genlmsg_cancel(msg, hdr);
4598 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4599 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4600 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4601 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4602 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4603 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4604 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4605 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4606 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4607 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4608 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4609 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4610 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4611 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4612 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4613 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4614 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4615 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4616 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4617 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4618 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4619 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4620 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4621 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4622 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4623 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4624 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4625 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4626 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4629 static const struct nla_policy
4630 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4631 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4632 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4633 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4634 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4635 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4636 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4637 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4638 .len = IEEE80211_MAX_DATA_LEN },
4639 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4642 static int nl80211_parse_mesh_config(struct genl_info *info,
4643 struct mesh_config *cfg,
4646 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4649 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4652 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4654 cfg->param = fn(tb[attr]); \
4655 mask |= (1 << (attr - 1)); \
4660 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4662 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4663 info->attrs[NL80211_ATTR_MESH_CONFIG],
4664 nl80211_meshconf_params_policy))
4667 /* This makes sure that there aren't more than 32 mesh config
4668 * parameters (otherwise our bitfield scheme would not work.) */
4669 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4671 /* Fill in the params struct */
4672 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4673 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4675 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4676 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4678 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4679 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4681 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4682 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4684 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4685 mask, NL80211_MESHCONF_MAX_RETRIES,
4687 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4688 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4689 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4690 mask, NL80211_MESHCONF_ELEMENT_TTL,
4692 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4693 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4695 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4697 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4699 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4700 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4702 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4703 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4705 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4706 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4708 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4710 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4712 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4714 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4716 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4718 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4720 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4721 dot11MeshHWMPnetDiameterTraversalTime,
4723 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4725 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4726 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4728 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4729 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4731 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4732 dot11MeshGateAnnouncementProtocol, 0, 1,
4733 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4735 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4736 mask, NL80211_MESHCONF_FORWARDING,
4738 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, 1, 255,
4739 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4741 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4742 mask, NL80211_MESHCONF_HT_OPMODE,
4744 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4746 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4748 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4749 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4751 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4752 dot11MeshHWMPconfirmationInterval,
4754 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4756 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4757 NL80211_MESH_POWER_ACTIVE,
4758 NL80211_MESH_POWER_MAX,
4759 mask, NL80211_MESHCONF_POWER_MODE,
4761 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4763 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4764 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4765 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4772 #undef FILL_IN_MESH_PARAM_IF_SET
4775 static int nl80211_parse_mesh_setup(struct genl_info *info,
4776 struct mesh_setup *setup)
4778 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4779 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4781 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4783 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4784 info->attrs[NL80211_ATTR_MESH_SETUP],
4785 nl80211_mesh_setup_params_policy))
4788 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4789 setup->sync_method =
4790 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4791 IEEE80211_SYNC_METHOD_VENDOR :
4792 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4794 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4795 setup->path_sel_proto =
4796 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4797 IEEE80211_PATH_PROTOCOL_VENDOR :
4798 IEEE80211_PATH_PROTOCOL_HWMP;
4800 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4801 setup->path_metric =
4802 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4803 IEEE80211_PATH_METRIC_VENDOR :
4804 IEEE80211_PATH_METRIC_AIRTIME;
4807 if (tb[NL80211_MESH_SETUP_IE]) {
4808 struct nlattr *ieattr =
4809 tb[NL80211_MESH_SETUP_IE];
4810 if (!is_valid_ie_attr(ieattr))
4812 setup->ie = nla_data(ieattr);
4813 setup->ie_len = nla_len(ieattr);
4815 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4816 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4818 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
4819 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
4820 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
4821 if (setup->is_secure)
4822 setup->user_mpm = true;
4824 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
4825 if (!setup->user_mpm)
4828 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
4834 static int nl80211_update_mesh_config(struct sk_buff *skb,
4835 struct genl_info *info)
4837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4838 struct net_device *dev = info->user_ptr[1];
4839 struct wireless_dev *wdev = dev->ieee80211_ptr;
4840 struct mesh_config cfg;
4844 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4847 if (!rdev->ops->update_mesh_config)
4850 err = nl80211_parse_mesh_config(info, &cfg, &mask);
4855 if (!wdev->mesh_id_len)
4859 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
4866 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
4868 const struct ieee80211_regdomain *regdom;
4869 struct sk_buff *msg;
4871 struct nlattr *nl_reg_rules;
4874 if (!cfg80211_regdomain)
4877 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4881 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4882 NL80211_CMD_GET_REG);
4886 if (reg_last_request_cell_base() &&
4887 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
4888 NL80211_USER_REG_HINT_CELL_BASE))
4889 goto nla_put_failure;
4892 regdom = rcu_dereference(cfg80211_regdomain);
4894 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
4895 (regdom->dfs_region &&
4896 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
4897 goto nla_put_failure_rcu;
4899 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
4901 goto nla_put_failure_rcu;
4903 for (i = 0; i < regdom->n_reg_rules; i++) {
4904 struct nlattr *nl_reg_rule;
4905 const struct ieee80211_reg_rule *reg_rule;
4906 const struct ieee80211_freq_range *freq_range;
4907 const struct ieee80211_power_rule *power_rule;
4909 reg_rule = ®dom->reg_rules[i];
4910 freq_range = ®_rule->freq_range;
4911 power_rule = ®_rule->power_rule;
4913 nl_reg_rule = nla_nest_start(msg, i);
4915 goto nla_put_failure_rcu;
4917 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
4919 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
4920 freq_range->start_freq_khz) ||
4921 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
4922 freq_range->end_freq_khz) ||
4923 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
4924 freq_range->max_bandwidth_khz) ||
4925 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
4926 power_rule->max_antenna_gain) ||
4927 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
4928 power_rule->max_eirp))
4929 goto nla_put_failure_rcu;
4931 nla_nest_end(msg, nl_reg_rule);
4935 nla_nest_end(msg, nl_reg_rules);
4937 genlmsg_end(msg, hdr);
4938 return genlmsg_reply(msg, info);
4940 nla_put_failure_rcu:
4943 genlmsg_cancel(msg, hdr);
4949 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
4951 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
4952 struct nlattr *nl_reg_rule;
4953 char *alpha2 = NULL;
4954 int rem_reg_rules = 0, r = 0;
4955 u32 num_rules = 0, rule_idx = 0, size_of_regd;
4957 struct ieee80211_regdomain *rd = NULL;
4959 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4962 if (!info->attrs[NL80211_ATTR_REG_RULES])
4965 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4967 if (info->attrs[NL80211_ATTR_DFS_REGION])
4968 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
4970 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4973 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
4977 size_of_regd = sizeof(struct ieee80211_regdomain) +
4978 num_rules * sizeof(struct ieee80211_reg_rule);
4980 rd = kzalloc(size_of_regd, GFP_KERNEL);
4984 rd->n_reg_rules = num_rules;
4985 rd->alpha2[0] = alpha2[0];
4986 rd->alpha2[1] = alpha2[1];
4989 * Disable DFS master mode if the DFS region was
4990 * not supported or known on this kernel.
4992 if (reg_supported_dfs_region(dfs_region))
4993 rd->dfs_region = dfs_region;
4995 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
4997 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
4998 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5000 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5006 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5013 /* set_regdom took ownership */
5021 static int validate_scan_freqs(struct nlattr *freqs)
5023 struct nlattr *attr1, *attr2;
5024 int n_channels = 0, tmp1, tmp2;
5026 nla_for_each_nested(attr1, freqs, tmp1) {
5029 * Some hardware has a limited channel list for
5030 * scanning, and it is pretty much nonsensical
5031 * to scan for a channel twice, so disallow that
5032 * and don't require drivers to check that the
5033 * channel list they get isn't longer than what
5034 * they can scan, as long as they can scan all
5035 * the channels they registered at once.
5037 nla_for_each_nested(attr2, freqs, tmp2)
5038 if (attr1 != attr2 &&
5039 nla_get_u32(attr1) == nla_get_u32(attr2))
5046 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5049 struct wireless_dev *wdev = info->user_ptr[1];
5050 struct cfg80211_scan_request *request;
5051 struct nlattr *attr;
5052 struct wiphy *wiphy;
5053 int err, tmp, n_ssids = 0, n_channels, i;
5056 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5059 wiphy = &rdev->wiphy;
5061 if (!rdev->ops->scan)
5064 if (rdev->scan_req) {
5069 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5070 n_channels = validate_scan_freqs(
5071 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5077 enum ieee80211_band band;
5080 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5081 if (wiphy->bands[band])
5082 n_channels += wiphy->bands[band]->n_channels;
5085 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5086 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5089 if (n_ssids > wiphy->max_scan_ssids) {
5094 if (info->attrs[NL80211_ATTR_IE])
5095 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5099 if (ie_len > wiphy->max_scan_ie_len) {
5104 request = kzalloc(sizeof(*request)
5105 + sizeof(*request->ssids) * n_ssids
5106 + sizeof(*request->channels) * n_channels
5107 + ie_len, GFP_KERNEL);
5114 request->ssids = (void *)&request->channels[n_channels];
5115 request->n_ssids = n_ssids;
5118 request->ie = (void *)(request->ssids + n_ssids);
5120 request->ie = (void *)(request->channels + n_channels);
5124 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5125 /* user specified, bail out if channel not found */
5126 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5127 struct ieee80211_channel *chan;
5129 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5136 /* ignore disabled channels */
5137 if (chan->flags & IEEE80211_CHAN_DISABLED)
5140 request->channels[i] = chan;
5144 enum ieee80211_band band;
5147 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5149 if (!wiphy->bands[band])
5151 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5152 struct ieee80211_channel *chan;
5154 chan = &wiphy->bands[band]->channels[j];
5156 if (chan->flags & IEEE80211_CHAN_DISABLED)
5159 request->channels[i] = chan;
5170 request->n_channels = i;
5173 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5174 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5175 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5179 request->ssids[i].ssid_len = nla_len(attr);
5180 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5185 if (info->attrs[NL80211_ATTR_IE]) {
5186 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5187 memcpy((void *)request->ie,
5188 nla_data(info->attrs[NL80211_ATTR_IE]),
5192 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5193 if (wiphy->bands[i])
5195 (1 << wiphy->bands[i]->n_bitrates) - 1;
5197 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5198 nla_for_each_nested(attr,
5199 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5201 enum ieee80211_band band = nla_type(attr);
5203 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5207 err = ieee80211_get_ratemask(wiphy->bands[band],
5210 &request->rates[band]);
5216 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5217 request->flags = nla_get_u32(
5218 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5219 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5220 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5221 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5222 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5229 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5231 request->wdev = wdev;
5232 request->wiphy = &rdev->wiphy;
5233 request->scan_start = jiffies;
5235 rdev->scan_req = request;
5236 err = rdev_scan(rdev, request);
5239 nl80211_send_scan_start(rdev, wdev);
5241 dev_hold(wdev->netdev);
5244 rdev->scan_req = NULL;
5252 static int nl80211_start_sched_scan(struct sk_buff *skb,
5253 struct genl_info *info)
5255 struct cfg80211_sched_scan_request *request;
5256 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5257 struct net_device *dev = info->user_ptr[1];
5258 struct nlattr *attr;
5259 struct wiphy *wiphy;
5260 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5262 enum ieee80211_band band;
5264 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5266 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5267 !rdev->ops->sched_scan_start)
5270 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5273 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5276 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5280 wiphy = &rdev->wiphy;
5282 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5283 n_channels = validate_scan_freqs(
5284 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5290 for (band = 0; band < IEEE80211_NUM_BANDS; band++)
5291 if (wiphy->bands[band])
5292 n_channels += wiphy->bands[band]->n_channels;
5295 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5296 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5300 if (n_ssids > wiphy->max_sched_scan_ssids)
5303 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5304 nla_for_each_nested(attr,
5305 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5309 if (n_match_sets > wiphy->max_match_sets)
5312 if (info->attrs[NL80211_ATTR_IE])
5313 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5317 if (ie_len > wiphy->max_sched_scan_ie_len)
5320 if (rdev->sched_scan_req) {
5325 request = kzalloc(sizeof(*request)
5326 + sizeof(*request->ssids) * n_ssids
5327 + sizeof(*request->match_sets) * n_match_sets
5328 + sizeof(*request->channels) * n_channels
5329 + ie_len, GFP_KERNEL);
5336 request->ssids = (void *)&request->channels[n_channels];
5337 request->n_ssids = n_ssids;
5340 request->ie = (void *)(request->ssids + n_ssids);
5342 request->ie = (void *)(request->channels + n_channels);
5347 request->match_sets = (void *)(request->ie + ie_len);
5348 else if (request->ssids)
5349 request->match_sets =
5350 (void *)(request->ssids + n_ssids);
5352 request->match_sets =
5353 (void *)(request->channels + n_channels);
5355 request->n_match_sets = n_match_sets;
5358 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5359 /* user specified, bail out if channel not found */
5360 nla_for_each_nested(attr,
5361 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5363 struct ieee80211_channel *chan;
5365 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5372 /* ignore disabled channels */
5373 if (chan->flags & IEEE80211_CHAN_DISABLED)
5376 request->channels[i] = chan;
5381 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5383 if (!wiphy->bands[band])
5385 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5386 struct ieee80211_channel *chan;
5388 chan = &wiphy->bands[band]->channels[j];
5390 if (chan->flags & IEEE80211_CHAN_DISABLED)
5393 request->channels[i] = chan;
5404 request->n_channels = i;
5407 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5408 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5410 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5414 request->ssids[i].ssid_len = nla_len(attr);
5415 memcpy(request->ssids[i].ssid, nla_data(attr),
5422 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5423 nla_for_each_nested(attr,
5424 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5426 struct nlattr *ssid, *rssi;
5428 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5429 nla_data(attr), nla_len(attr),
5430 nl80211_match_policy);
5431 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5433 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5437 memcpy(request->match_sets[i].ssid.ssid,
5438 nla_data(ssid), nla_len(ssid));
5439 request->match_sets[i].ssid.ssid_len =
5442 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5444 request->rssi_thold = nla_get_u32(rssi);
5446 request->rssi_thold =
5447 NL80211_SCAN_RSSI_THOLD_OFF;
5452 if (info->attrs[NL80211_ATTR_IE]) {
5453 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5454 memcpy((void *)request->ie,
5455 nla_data(info->attrs[NL80211_ATTR_IE]),
5459 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5460 request->flags = nla_get_u32(
5461 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5462 if (((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5463 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) ||
5464 ((request->flags & NL80211_SCAN_FLAG_FLUSH) &&
5465 !(wiphy->features & NL80211_FEATURE_SCAN_FLUSH))) {
5472 request->wiphy = &rdev->wiphy;
5473 request->interval = interval;
5474 request->scan_start = jiffies;
5476 err = rdev_sched_scan_start(rdev, dev, request);
5478 rdev->sched_scan_req = request;
5479 nl80211_send_sched_scan(rdev, dev,
5480 NL80211_CMD_START_SCHED_SCAN);
5490 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5491 struct genl_info *info)
5493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5495 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5496 !rdev->ops->sched_scan_stop)
5499 return __cfg80211_stop_sched_scan(rdev, false);
5502 static int nl80211_start_radar_detection(struct sk_buff *skb,
5503 struct genl_info *info)
5505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5506 struct net_device *dev = info->user_ptr[1];
5507 struct wireless_dev *wdev = dev->ieee80211_ptr;
5508 struct cfg80211_chan_def chandef;
5511 err = nl80211_parse_chandef(rdev, info, &chandef);
5515 if (wdev->cac_started)
5518 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5525 if (chandef.chan->dfs_state != NL80211_DFS_USABLE)
5528 if (!rdev->ops->start_radar_detection)
5531 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5532 chandef.chan, CHAN_MODE_SHARED,
5533 BIT(chandef.width));
5537 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5539 wdev->channel = chandef.chan;
5540 wdev->cac_started = true;
5541 wdev->cac_start_time = jiffies;
5546 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5548 struct cfg80211_registered_device *rdev,
5549 struct wireless_dev *wdev,
5550 struct cfg80211_internal_bss *intbss)
5552 struct cfg80211_bss *res = &intbss->pub;
5553 const struct cfg80211_bss_ies *ies;
5558 ASSERT_WDEV_LOCK(wdev);
5560 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5561 NL80211_CMD_NEW_SCAN_RESULTS);
5565 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5567 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5568 goto nla_put_failure;
5570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5571 goto nla_put_failure;
5572 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5573 goto nla_put_failure;
5575 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5577 goto nla_put_failure;
5578 if ((!is_zero_ether_addr(res->bssid) &&
5579 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5580 goto nla_put_failure;
5583 ies = rcu_dereference(res->ies);
5585 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5586 goto fail_unlock_rcu;
5588 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5589 ies->len, ies->data))
5590 goto fail_unlock_rcu;
5592 ies = rcu_dereference(res->beacon_ies);
5594 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5595 goto fail_unlock_rcu;
5596 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5597 ies->len, ies->data))
5598 goto fail_unlock_rcu;
5602 if (res->beacon_interval &&
5603 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5604 goto nla_put_failure;
5605 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5606 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5607 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5608 jiffies_to_msecs(jiffies - intbss->ts)))
5609 goto nla_put_failure;
5611 switch (rdev->wiphy.signal_type) {
5612 case CFG80211_SIGNAL_TYPE_MBM:
5613 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5614 goto nla_put_failure;
5616 case CFG80211_SIGNAL_TYPE_UNSPEC:
5617 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5618 goto nla_put_failure;
5624 switch (wdev->iftype) {
5625 case NL80211_IFTYPE_P2P_CLIENT:
5626 case NL80211_IFTYPE_STATION:
5627 if (intbss == wdev->current_bss &&
5628 nla_put_u32(msg, NL80211_BSS_STATUS,
5629 NL80211_BSS_STATUS_ASSOCIATED))
5630 goto nla_put_failure;
5632 case NL80211_IFTYPE_ADHOC:
5633 if (intbss == wdev->current_bss &&
5634 nla_put_u32(msg, NL80211_BSS_STATUS,
5635 NL80211_BSS_STATUS_IBSS_JOINED))
5636 goto nla_put_failure;
5642 nla_nest_end(msg, bss);
5644 return genlmsg_end(msg, hdr);
5649 genlmsg_cancel(msg, hdr);
5653 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
5655 struct cfg80211_registered_device *rdev;
5656 struct cfg80211_internal_bss *scan;
5657 struct wireless_dev *wdev;
5658 int start = cb->args[2], idx = 0;
5661 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5666 spin_lock_bh(&rdev->bss_lock);
5667 cfg80211_bss_expire(rdev);
5669 cb->seq = rdev->bss_generation;
5671 list_for_each_entry(scan, &rdev->bss_list, list) {
5674 if (nl80211_send_bss(skb, cb,
5675 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5676 rdev, wdev, scan) < 0) {
5682 spin_unlock_bh(&rdev->bss_lock);
5686 nl80211_finish_wdev_dump(rdev);
5691 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
5692 int flags, struct net_device *dev,
5693 struct survey_info *survey)
5696 struct nlattr *infoattr;
5698 hdr = nl80211hdr_put(msg, portid, seq, flags,
5699 NL80211_CMD_NEW_SURVEY_RESULTS);
5703 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
5704 goto nla_put_failure;
5706 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
5708 goto nla_put_failure;
5710 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
5711 survey->channel->center_freq))
5712 goto nla_put_failure;
5714 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
5715 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
5716 goto nla_put_failure;
5717 if ((survey->filled & SURVEY_INFO_IN_USE) &&
5718 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
5719 goto nla_put_failure;
5720 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
5721 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
5722 survey->channel_time))
5723 goto nla_put_failure;
5724 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
5725 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
5726 survey->channel_time_busy))
5727 goto nla_put_failure;
5728 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
5729 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
5730 survey->channel_time_ext_busy))
5731 goto nla_put_failure;
5732 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
5733 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
5734 survey->channel_time_rx))
5735 goto nla_put_failure;
5736 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
5737 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
5738 survey->channel_time_tx))
5739 goto nla_put_failure;
5741 nla_nest_end(msg, infoattr);
5743 return genlmsg_end(msg, hdr);
5746 genlmsg_cancel(msg, hdr);
5750 static int nl80211_dump_survey(struct sk_buff *skb,
5751 struct netlink_callback *cb)
5753 struct survey_info survey;
5754 struct cfg80211_registered_device *dev;
5755 struct wireless_dev *wdev;
5756 int survey_idx = cb->args[2];
5759 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
5763 if (!wdev->netdev) {
5768 if (!dev->ops->dump_survey) {
5774 struct ieee80211_channel *chan;
5776 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
5782 /* Survey without a channel doesn't make sense */
5783 if (!survey.channel) {
5788 chan = ieee80211_get_channel(&dev->wiphy,
5789 survey.channel->center_freq);
5790 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
5795 if (nl80211_send_survey(skb,
5796 NETLINK_CB(cb->skb).portid,
5797 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5798 wdev->netdev, &survey) < 0)
5804 cb->args[2] = survey_idx;
5807 nl80211_finish_wdev_dump(dev);
5811 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
5813 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
5814 NL80211_WPA_VERSION_2));
5817 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
5819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5820 struct net_device *dev = info->user_ptr[1];
5821 struct ieee80211_channel *chan;
5822 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
5823 int err, ssid_len, ie_len = 0, sae_data_len = 0;
5824 enum nl80211_auth_type auth_type;
5825 struct key_parse key;
5826 bool local_state_change;
5828 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5831 if (!info->attrs[NL80211_ATTR_MAC])
5834 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
5837 if (!info->attrs[NL80211_ATTR_SSID])
5840 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
5843 err = nl80211_parse_key(info, &key);
5848 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
5850 if (!key.p.key || !key.p.key_len)
5852 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
5853 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
5854 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
5855 key.p.key_len != WLAN_KEY_LEN_WEP104))
5867 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
5868 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
5877 if (!rdev->ops->auth)
5880 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
5881 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
5884 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
5885 chan = ieee80211_get_channel(&rdev->wiphy,
5886 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
5887 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
5890 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
5891 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
5893 if (info->attrs[NL80211_ATTR_IE]) {
5894 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
5895 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5898 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
5899 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
5902 if (auth_type == NL80211_AUTHTYPE_SAE &&
5903 !info->attrs[NL80211_ATTR_SAE_DATA])
5906 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
5907 if (auth_type != NL80211_AUTHTYPE_SAE)
5909 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
5910 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
5911 /* need to include at least Auth Transaction and Status Code */
5912 if (sae_data_len < 4)
5916 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
5919 * Since we no longer track auth state, ignore
5920 * requests to only change local state.
5922 if (local_state_change)
5925 wdev_lock(dev->ieee80211_ptr);
5926 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
5927 ssid, ssid_len, ie, ie_len,
5928 key.p.key, key.p.key_len, key.idx,
5929 sae_data, sae_data_len);
5930 wdev_unlock(dev->ieee80211_ptr);
5934 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
5935 struct genl_info *info,
5936 struct cfg80211_crypto_settings *settings,
5939 memset(settings, 0, sizeof(*settings));
5941 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
5943 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
5945 proto = nla_get_u16(
5946 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
5947 settings->control_port_ethertype = cpu_to_be16(proto);
5948 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
5951 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
5952 settings->control_port_no_encrypt = true;
5954 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
5956 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
5960 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5961 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
5962 settings->n_ciphers_pairwise = len / sizeof(u32);
5964 if (len % sizeof(u32))
5967 if (settings->n_ciphers_pairwise > cipher_limit)
5970 memcpy(settings->ciphers_pairwise, data, len);
5972 for (i = 0; i < settings->n_ciphers_pairwise; i++)
5973 if (!cfg80211_supported_cipher_suite(
5975 settings->ciphers_pairwise[i]))
5979 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
5980 settings->cipher_group =
5981 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
5982 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
5983 settings->cipher_group))
5987 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
5988 settings->wpa_versions =
5989 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
5990 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
5994 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
5998 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
5999 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6000 settings->n_akm_suites = len / sizeof(u32);
6002 if (len % sizeof(u32))
6005 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6008 memcpy(settings->akm_suites, data, len);
6014 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6017 struct net_device *dev = info->user_ptr[1];
6018 struct ieee80211_channel *chan;
6019 struct cfg80211_assoc_request req = {};
6020 const u8 *bssid, *ssid;
6021 int err, ssid_len = 0;
6023 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6026 if (!info->attrs[NL80211_ATTR_MAC] ||
6027 !info->attrs[NL80211_ATTR_SSID] ||
6028 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6031 if (!rdev->ops->assoc)
6034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6035 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6038 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6040 chan = ieee80211_get_channel(&rdev->wiphy,
6041 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6042 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6045 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6046 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6048 if (info->attrs[NL80211_ATTR_IE]) {
6049 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6050 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6053 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6054 enum nl80211_mfp mfp =
6055 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6056 if (mfp == NL80211_MFP_REQUIRED)
6058 else if (mfp != NL80211_MFP_NO)
6062 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6063 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6065 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6066 req.flags |= ASSOC_REQ_DISABLE_HT;
6068 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6069 memcpy(&req.ht_capa_mask,
6070 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6071 sizeof(req.ht_capa_mask));
6073 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6074 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6076 memcpy(&req.ht_capa,
6077 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6078 sizeof(req.ht_capa));
6081 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6082 req.flags |= ASSOC_REQ_DISABLE_VHT;
6084 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6085 memcpy(&req.vht_capa_mask,
6086 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6087 sizeof(req.vht_capa_mask));
6089 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6090 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6092 memcpy(&req.vht_capa,
6093 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6094 sizeof(req.vht_capa));
6097 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6099 wdev_lock(dev->ieee80211_ptr);
6100 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6101 ssid, ssid_len, &req);
6102 wdev_unlock(dev->ieee80211_ptr);
6108 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6111 struct net_device *dev = info->user_ptr[1];
6112 const u8 *ie = NULL, *bssid;
6113 int ie_len = 0, err;
6115 bool local_state_change;
6117 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6120 if (!info->attrs[NL80211_ATTR_MAC])
6123 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6126 if (!rdev->ops->deauth)
6129 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6130 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6133 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6135 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6136 if (reason_code == 0) {
6137 /* Reason Code 0 is reserved */
6141 if (info->attrs[NL80211_ATTR_IE]) {
6142 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6143 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6146 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6148 wdev_lock(dev->ieee80211_ptr);
6149 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6150 local_state_change);
6151 wdev_unlock(dev->ieee80211_ptr);
6155 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6157 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6158 struct net_device *dev = info->user_ptr[1];
6159 const u8 *ie = NULL, *bssid;
6160 int ie_len = 0, err;
6162 bool local_state_change;
6164 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6167 if (!info->attrs[NL80211_ATTR_MAC])
6170 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6173 if (!rdev->ops->disassoc)
6176 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6177 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6180 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6182 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6183 if (reason_code == 0) {
6184 /* Reason Code 0 is reserved */
6188 if (info->attrs[NL80211_ATTR_IE]) {
6189 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6190 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6193 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6195 wdev_lock(dev->ieee80211_ptr);
6196 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6197 local_state_change);
6198 wdev_unlock(dev->ieee80211_ptr);
6203 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6204 int mcast_rate[IEEE80211_NUM_BANDS],
6207 struct wiphy *wiphy = &rdev->wiphy;
6211 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6212 struct ieee80211_supported_band *sband;
6214 sband = wiphy->bands[band];
6218 for (i = 0; i < sband->n_bitrates; i++) {
6219 if (sband->bitrates[i].bitrate == rateval) {
6220 mcast_rate[band] = i + 1;
6230 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6232 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6233 struct net_device *dev = info->user_ptr[1];
6234 struct cfg80211_ibss_params ibss;
6235 struct wiphy *wiphy;
6236 struct cfg80211_cached_keys *connkeys = NULL;
6239 memset(&ibss, 0, sizeof(ibss));
6241 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6244 if (!info->attrs[NL80211_ATTR_SSID] ||
6245 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6248 ibss.beacon_interval = 100;
6250 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6251 ibss.beacon_interval =
6252 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6253 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6257 if (!rdev->ops->join_ibss)
6260 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6263 wiphy = &rdev->wiphy;
6265 if (info->attrs[NL80211_ATTR_MAC]) {
6266 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6268 if (!is_valid_ether_addr(ibss.bssid))
6271 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6272 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6274 if (info->attrs[NL80211_ATTR_IE]) {
6275 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6276 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6279 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6283 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6286 if (ibss.chandef.width > NL80211_CHAN_WIDTH_40)
6288 if (ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
6289 !(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
6292 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6293 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6295 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6297 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6299 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6300 struct ieee80211_supported_band *sband =
6301 wiphy->bands[ibss.chandef.chan->band];
6303 err = ieee80211_get_ratemask(sband, rates, n_rates,
6309 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6310 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6311 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6314 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6317 connkeys = nl80211_parse_connkeys(rdev,
6318 info->attrs[NL80211_ATTR_KEYS],
6320 if (IS_ERR(connkeys))
6321 return PTR_ERR(connkeys);
6323 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6331 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6333 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6339 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6342 struct net_device *dev = info->user_ptr[1];
6344 if (!rdev->ops->leave_ibss)
6347 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6350 return cfg80211_leave_ibss(rdev, dev, false);
6353 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6356 struct net_device *dev = info->user_ptr[1];
6357 int mcast_rate[IEEE80211_NUM_BANDS];
6361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6365 if (!rdev->ops->set_mcast_rate)
6368 memset(mcast_rate, 0, sizeof(mcast_rate));
6370 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6373 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6374 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6377 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6383 #ifdef CONFIG_NL80211_TESTMODE
6384 static struct genl_multicast_group nl80211_testmode_mcgrp = {
6388 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6393 if (!info->attrs[NL80211_ATTR_TESTDATA])
6397 if (rdev->ops->testmode_cmd) {
6398 rdev->testmode_info = info;
6399 err = rdev_testmode_cmd(rdev,
6400 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6401 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6402 rdev->testmode_info = NULL;
6408 static int nl80211_testmode_dump(struct sk_buff *skb,
6409 struct netlink_callback *cb)
6411 struct cfg80211_registered_device *rdev;
6421 * 0 is a valid index, but not valid for args[0],
6422 * so we need to offset by 1.
6424 phy_idx = cb->args[0] - 1;
6426 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6427 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6432 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6433 nl80211_fam.attrbuf);
6435 err = PTR_ERR(rdev);
6438 phy_idx = rdev->wiphy_idx;
6441 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6443 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6447 data = nla_data((void *)cb->args[1]);
6448 data_len = nla_len((void *)cb->args[1]);
6451 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6457 if (!rdev->ops->testmode_dump) {
6463 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6464 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6465 NL80211_CMD_TESTMODE);
6466 struct nlattr *tmdata;
6468 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6469 genlmsg_cancel(skb, hdr);
6473 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6475 genlmsg_cancel(skb, hdr);
6478 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6479 nla_nest_end(skb, tmdata);
6481 if (err == -ENOBUFS || err == -ENOENT) {
6482 genlmsg_cancel(skb, hdr);
6485 genlmsg_cancel(skb, hdr);
6489 genlmsg_end(skb, hdr);
6494 cb->args[0] = phy_idx + 1;
6500 static struct sk_buff *
6501 __cfg80211_testmode_alloc_skb(struct cfg80211_registered_device *rdev,
6502 int approxlen, u32 portid, u32 seq, gfp_t gfp)
6504 struct sk_buff *skb;
6506 struct nlattr *data;
6508 skb = nlmsg_new(approxlen + 100, gfp);
6512 hdr = nl80211hdr_put(skb, portid, seq, 0, NL80211_CMD_TESTMODE);
6518 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6519 goto nla_put_failure;
6520 data = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6522 ((void **)skb->cb)[0] = rdev;
6523 ((void **)skb->cb)[1] = hdr;
6524 ((void **)skb->cb)[2] = data;
6533 struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
6536 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6538 if (WARN_ON(!rdev->testmode_info))
6541 return __cfg80211_testmode_alloc_skb(rdev, approxlen,
6542 rdev->testmode_info->snd_portid,
6543 rdev->testmode_info->snd_seq,
6546 EXPORT_SYMBOL(cfg80211_testmode_alloc_reply_skb);
6548 int cfg80211_testmode_reply(struct sk_buff *skb)
6550 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6551 void *hdr = ((void **)skb->cb)[1];
6552 struct nlattr *data = ((void **)skb->cb)[2];
6554 if (WARN_ON(!rdev->testmode_info)) {
6559 nla_nest_end(skb, data);
6560 genlmsg_end(skb, hdr);
6561 return genlmsg_reply(skb, rdev->testmode_info);
6563 EXPORT_SYMBOL(cfg80211_testmode_reply);
6565 struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
6566 int approxlen, gfp_t gfp)
6568 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6570 return __cfg80211_testmode_alloc_skb(rdev, approxlen, 0, 0, gfp);
6572 EXPORT_SYMBOL(cfg80211_testmode_alloc_event_skb);
6574 void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
6576 void *hdr = ((void **)skb->cb)[1];
6577 struct nlattr *data = ((void **)skb->cb)[2];
6579 nla_nest_end(skb, data);
6580 genlmsg_end(skb, hdr);
6581 genlmsg_multicast(skb, 0, nl80211_testmode_mcgrp.id, gfp);
6583 EXPORT_SYMBOL(cfg80211_testmode_event);
6586 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6589 struct net_device *dev = info->user_ptr[1];
6590 struct cfg80211_connect_params connect;
6591 struct wiphy *wiphy;
6592 struct cfg80211_cached_keys *connkeys = NULL;
6595 memset(&connect, 0, sizeof(connect));
6597 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6600 if (!info->attrs[NL80211_ATTR_SSID] ||
6601 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6604 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6606 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6607 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6608 NL80211_CMD_CONNECT))
6611 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6613 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6615 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6616 NL80211_MAX_NR_CIPHER_SUITES);
6620 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6621 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6624 wiphy = &rdev->wiphy;
6626 connect.bg_scan_period = -1;
6627 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6628 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6629 connect.bg_scan_period =
6630 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6633 if (info->attrs[NL80211_ATTR_MAC])
6634 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6635 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6636 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6638 if (info->attrs[NL80211_ATTR_IE]) {
6639 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6640 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6643 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6644 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6645 if (connect.mfp != NL80211_MFP_REQUIRED &&
6646 connect.mfp != NL80211_MFP_NO)
6649 connect.mfp = NL80211_MFP_NO;
6652 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
6654 ieee80211_get_channel(wiphy,
6655 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6656 if (!connect.channel ||
6657 connect.channel->flags & IEEE80211_CHAN_DISABLED)
6661 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6662 connkeys = nl80211_parse_connkeys(rdev,
6663 info->attrs[NL80211_ATTR_KEYS], NULL);
6664 if (IS_ERR(connkeys))
6665 return PTR_ERR(connkeys);
6668 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6669 connect.flags |= ASSOC_REQ_DISABLE_HT;
6671 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6672 memcpy(&connect.ht_capa_mask,
6673 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6674 sizeof(connect.ht_capa_mask));
6676 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6677 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
6681 memcpy(&connect.ht_capa,
6682 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6683 sizeof(connect.ht_capa));
6686 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6687 connect.flags |= ASSOC_REQ_DISABLE_VHT;
6689 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6690 memcpy(&connect.vht_capa_mask,
6691 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6692 sizeof(connect.vht_capa_mask));
6694 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6695 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
6699 memcpy(&connect.vht_capa,
6700 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6701 sizeof(connect.vht_capa));
6704 wdev_lock(dev->ieee80211_ptr);
6705 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
6706 wdev_unlock(dev->ieee80211_ptr);
6712 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
6714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6715 struct net_device *dev = info->user_ptr[1];
6719 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6720 reason = WLAN_REASON_DEAUTH_LEAVING;
6722 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6727 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6728 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6731 wdev_lock(dev->ieee80211_ptr);
6732 ret = cfg80211_disconnect(rdev, dev, reason, true);
6733 wdev_unlock(dev->ieee80211_ptr);
6737 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
6739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6744 if (!info->attrs[NL80211_ATTR_PID])
6747 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
6749 net = get_net_ns_by_pid(pid);
6751 return PTR_ERR(net);
6755 /* check if anything to do */
6756 if (!net_eq(wiphy_net(&rdev->wiphy), net))
6757 err = cfg80211_switch_netns(rdev, net);
6763 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
6765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6766 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
6767 struct cfg80211_pmksa *pmksa) = NULL;
6768 struct net_device *dev = info->user_ptr[1];
6769 struct cfg80211_pmksa pmksa;
6771 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
6773 if (!info->attrs[NL80211_ATTR_MAC])
6776 if (!info->attrs[NL80211_ATTR_PMKID])
6779 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
6780 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6782 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6783 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6786 switch (info->genlhdr->cmd) {
6787 case NL80211_CMD_SET_PMKSA:
6788 rdev_ops = rdev->ops->set_pmksa;
6790 case NL80211_CMD_DEL_PMKSA:
6791 rdev_ops = rdev->ops->del_pmksa;
6801 return rdev_ops(&rdev->wiphy, dev, &pmksa);
6804 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
6806 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6807 struct net_device *dev = info->user_ptr[1];
6809 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6810 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6813 if (!rdev->ops->flush_pmksa)
6816 return rdev_flush_pmksa(rdev, dev);
6819 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
6821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6822 struct net_device *dev = info->user_ptr[1];
6823 u8 action_code, dialog_token;
6827 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6828 !rdev->ops->tdls_mgmt)
6831 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
6832 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
6833 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
6834 !info->attrs[NL80211_ATTR_IE] ||
6835 !info->attrs[NL80211_ATTR_MAC])
6838 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6839 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
6840 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
6841 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
6843 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
6844 dialog_token, status_code,
6845 nla_data(info->attrs[NL80211_ATTR_IE]),
6846 nla_len(info->attrs[NL80211_ATTR_IE]));
6849 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
6851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6852 struct net_device *dev = info->user_ptr[1];
6853 enum nl80211_tdls_operation operation;
6856 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
6857 !rdev->ops->tdls_oper)
6860 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
6861 !info->attrs[NL80211_ATTR_MAC])
6864 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
6865 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
6867 return rdev_tdls_oper(rdev, dev, peer, operation);
6870 static int nl80211_remain_on_channel(struct sk_buff *skb,
6871 struct genl_info *info)
6873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6874 struct wireless_dev *wdev = info->user_ptr[1];
6875 struct cfg80211_chan_def chandef;
6876 struct sk_buff *msg;
6882 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6883 !info->attrs[NL80211_ATTR_DURATION])
6886 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
6888 if (!rdev->ops->remain_on_channel ||
6889 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
6893 * We should be on that channel for at least a minimum amount of
6894 * time (10ms) but no longer than the driver supports.
6896 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
6897 duration > rdev->wiphy.max_remain_on_channel_duration)
6900 err = nl80211_parse_chandef(rdev, info, &chandef);
6904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
6908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
6909 NL80211_CMD_REMAIN_ON_CHANNEL);
6916 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
6922 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
6923 goto nla_put_failure;
6925 genlmsg_end(msg, hdr);
6927 return genlmsg_reply(msg, info);
6936 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
6937 struct genl_info *info)
6939 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6940 struct wireless_dev *wdev = info->user_ptr[1];
6943 if (!info->attrs[NL80211_ATTR_COOKIE])
6946 if (!rdev->ops->cancel_remain_on_channel)
6949 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
6951 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
6954 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
6955 u8 *rates, u8 rates_len)
6960 for (i = 0; i < rates_len; i++) {
6961 int rate = (rates[i] & 0x7f) * 5;
6963 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
6964 struct ieee80211_rate *srate =
6965 &sband->bitrates[ridx];
6966 if (rate == srate->bitrate) {
6971 if (ridx == sband->n_bitrates)
6972 return 0; /* rate not found */
6978 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
6979 u8 *rates, u8 rates_len,
6980 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
6984 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
6986 for (i = 0; i < rates_len; i++) {
6989 ridx = rates[i] / 8;
6990 rbit = BIT(rates[i] % 8);
6992 /* check validity */
6993 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
6996 /* check availability */
6997 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7006 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7007 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7008 .len = NL80211_MAX_SUPP_RATES },
7009 [NL80211_TXRATE_MCS] = { .type = NLA_BINARY,
7010 .len = NL80211_MAX_SUPP_HT_RATES },
7013 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7014 struct genl_info *info)
7016 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7018 struct cfg80211_bitrate_mask mask;
7020 struct net_device *dev = info->user_ptr[1];
7021 struct nlattr *tx_rates;
7022 struct ieee80211_supported_band *sband;
7024 if (info->attrs[NL80211_ATTR_TX_RATES] == NULL)
7027 if (!rdev->ops->set_bitrate_mask)
7030 memset(&mask, 0, sizeof(mask));
7031 /* Default to all rates enabled */
7032 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7033 sband = rdev->wiphy.bands[i];
7034 mask.control[i].legacy =
7035 sband ? (1 << sband->n_bitrates) - 1 : 0;
7037 memcpy(mask.control[i].mcs,
7038 sband->ht_cap.mcs.rx_mask,
7039 sizeof(mask.control[i].mcs));
7041 memset(mask.control[i].mcs, 0,
7042 sizeof(mask.control[i].mcs));
7046 * The nested attribute uses enum nl80211_band as the index. This maps
7047 * directly to the enum ieee80211_band values used in cfg80211.
7049 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7050 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7052 enum ieee80211_band band = nla_type(tx_rates);
7053 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7055 sband = rdev->wiphy.bands[band];
7058 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7059 nla_len(tx_rates), nl80211_txattr_policy);
7060 if (tb[NL80211_TXRATE_LEGACY]) {
7061 mask.control[band].legacy = rateset_to_mask(
7063 nla_data(tb[NL80211_TXRATE_LEGACY]),
7064 nla_len(tb[NL80211_TXRATE_LEGACY]));
7065 if ((mask.control[band].legacy == 0) &&
7066 nla_len(tb[NL80211_TXRATE_LEGACY]))
7069 if (tb[NL80211_TXRATE_MCS]) {
7070 if (!ht_rateset_to_mask(
7072 nla_data(tb[NL80211_TXRATE_MCS]),
7073 nla_len(tb[NL80211_TXRATE_MCS]),
7074 mask.control[band].mcs))
7078 if (mask.control[band].legacy == 0) {
7079 /* don't allow empty legacy rates if HT
7080 * is not even supported. */
7081 if (!rdev->wiphy.bands[band]->ht_cap.ht_supported)
7084 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7085 if (mask.control[band].mcs[i])
7088 /* legacy and mcs rates may not be both empty */
7089 if (i == IEEE80211_HT_MCS_MASK_LEN)
7094 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7097 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7100 struct wireless_dev *wdev = info->user_ptr[1];
7101 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7103 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7106 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7107 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7109 switch (wdev->iftype) {
7110 case NL80211_IFTYPE_STATION:
7111 case NL80211_IFTYPE_ADHOC:
7112 case NL80211_IFTYPE_P2P_CLIENT:
7113 case NL80211_IFTYPE_AP:
7114 case NL80211_IFTYPE_AP_VLAN:
7115 case NL80211_IFTYPE_MESH_POINT:
7116 case NL80211_IFTYPE_P2P_GO:
7117 case NL80211_IFTYPE_P2P_DEVICE:
7123 /* not much point in registering if we can't reply */
7124 if (!rdev->ops->mgmt_tx)
7127 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7128 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7129 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7132 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7135 struct wireless_dev *wdev = info->user_ptr[1];
7136 struct cfg80211_chan_def chandef;
7140 struct sk_buff *msg = NULL;
7141 unsigned int wait = 0;
7142 bool offchan, no_cck, dont_wait_for_ack;
7144 dont_wait_for_ack = info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK];
7146 if (!info->attrs[NL80211_ATTR_FRAME])
7149 if (!rdev->ops->mgmt_tx)
7152 switch (wdev->iftype) {
7153 case NL80211_IFTYPE_P2P_DEVICE:
7154 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7156 case NL80211_IFTYPE_STATION:
7157 case NL80211_IFTYPE_ADHOC:
7158 case NL80211_IFTYPE_P2P_CLIENT:
7159 case NL80211_IFTYPE_AP:
7160 case NL80211_IFTYPE_AP_VLAN:
7161 case NL80211_IFTYPE_MESH_POINT:
7162 case NL80211_IFTYPE_P2P_GO:
7168 if (info->attrs[NL80211_ATTR_DURATION]) {
7169 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7171 wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7174 * We should wait on the channel for at least a minimum amount
7175 * of time (10ms) but no longer than the driver supports.
7177 if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7178 wait > rdev->wiphy.max_remain_on_channel_duration)
7183 offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7185 if (offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7188 no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7190 /* get the channel if any has been specified, otherwise pass NULL to
7191 * the driver. The latter will use the current one
7193 chandef.chan = NULL;
7194 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7195 err = nl80211_parse_chandef(rdev, info, &chandef);
7200 if (!chandef.chan && offchan)
7203 if (!dont_wait_for_ack) {
7204 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7208 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7217 err = cfg80211_mlme_mgmt_tx(rdev, wdev, chandef.chan, offchan, wait,
7218 nla_data(info->attrs[NL80211_ATTR_FRAME]),
7219 nla_len(info->attrs[NL80211_ATTR_FRAME]),
7220 no_cck, dont_wait_for_ack, &cookie);
7225 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7226 goto nla_put_failure;
7228 genlmsg_end(msg, hdr);
7229 return genlmsg_reply(msg, info);
7241 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7244 struct wireless_dev *wdev = info->user_ptr[1];
7247 if (!info->attrs[NL80211_ATTR_COOKIE])
7250 if (!rdev->ops->mgmt_tx_cancel_wait)
7253 switch (wdev->iftype) {
7254 case NL80211_IFTYPE_STATION:
7255 case NL80211_IFTYPE_ADHOC:
7256 case NL80211_IFTYPE_P2P_CLIENT:
7257 case NL80211_IFTYPE_AP:
7258 case NL80211_IFTYPE_AP_VLAN:
7259 case NL80211_IFTYPE_P2P_GO:
7260 case NL80211_IFTYPE_P2P_DEVICE:
7266 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7268 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7271 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7274 struct wireless_dev *wdev;
7275 struct net_device *dev = info->user_ptr[1];
7280 if (!info->attrs[NL80211_ATTR_PS_STATE])
7283 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7285 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7288 wdev = dev->ieee80211_ptr;
7290 if (!rdev->ops->set_power_mgmt)
7293 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7295 if (state == wdev->ps)
7298 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7304 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7307 enum nl80211_ps_state ps_state;
7308 struct wireless_dev *wdev;
7309 struct net_device *dev = info->user_ptr[1];
7310 struct sk_buff *msg;
7314 wdev = dev->ieee80211_ptr;
7316 if (!rdev->ops->set_power_mgmt)
7319 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7323 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7324 NL80211_CMD_GET_POWER_SAVE);
7331 ps_state = NL80211_PS_ENABLED;
7333 ps_state = NL80211_PS_DISABLED;
7335 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7336 goto nla_put_failure;
7338 genlmsg_end(msg, hdr);
7339 return genlmsg_reply(msg, info);
7348 static struct nla_policy
7349 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7350 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7351 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7352 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7353 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7354 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7355 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7358 static int nl80211_set_cqm_txe(struct genl_info *info,
7359 u32 rate, u32 pkts, u32 intvl)
7361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7362 struct wireless_dev *wdev;
7363 struct net_device *dev = info->user_ptr[1];
7365 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7368 wdev = dev->ieee80211_ptr;
7370 if (!rdev->ops->set_cqm_txe_config)
7373 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7374 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7377 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7380 static int nl80211_set_cqm_rssi(struct genl_info *info,
7381 s32 threshold, u32 hysteresis)
7383 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7384 struct wireless_dev *wdev;
7385 struct net_device *dev = info->user_ptr[1];
7390 wdev = dev->ieee80211_ptr;
7392 if (!rdev->ops->set_cqm_rssi_config)
7395 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7396 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7399 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7402 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7404 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7408 cqm = info->attrs[NL80211_ATTR_CQM];
7414 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7415 nl80211_attr_cqm_policy);
7419 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7420 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7423 threshold = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7424 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7425 err = nl80211_set_cqm_rssi(info, threshold, hysteresis);
7426 } else if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7427 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7428 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7429 u32 rate, pkts, intvl;
7430 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7431 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7432 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7433 err = nl80211_set_cqm_txe(info, rate, pkts, intvl);
7441 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7444 struct net_device *dev = info->user_ptr[1];
7445 struct mesh_config cfg;
7446 struct mesh_setup setup;
7449 /* start with default */
7450 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7451 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7453 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7454 /* and parse parameters if given */
7455 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7460 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7461 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7464 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7465 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7467 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7468 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7469 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7472 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7473 setup.beacon_interval =
7474 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7475 if (setup.beacon_interval < 10 ||
7476 setup.beacon_interval > 10000)
7480 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7482 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7483 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7487 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7488 /* parse additional setup parameters if given */
7489 err = nl80211_parse_mesh_setup(info, &setup);
7495 cfg.auto_open_plinks = false;
7497 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7498 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7502 /* cfg80211_join_mesh() will sort it out */
7503 setup.chandef.chan = NULL;
7506 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7507 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7509 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7510 struct ieee80211_supported_band *sband;
7512 if (!setup.chandef.chan)
7515 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7517 err = ieee80211_get_ratemask(sband, rates, n_rates,
7518 &setup.basic_rates);
7523 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7526 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7529 struct net_device *dev = info->user_ptr[1];
7531 return cfg80211_leave_mesh(rdev, dev);
7535 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7536 struct cfg80211_registered_device *rdev)
7538 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
7539 struct nlattr *nl_pats, *nl_pat;
7542 if (!wowlan->n_patterns)
7545 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7549 for (i = 0; i < wowlan->n_patterns; i++) {
7550 nl_pat = nla_nest_start(msg, i + 1);
7553 pat_len = wowlan->patterns[i].pattern_len;
7554 if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
7555 DIV_ROUND_UP(pat_len, 8),
7556 wowlan->patterns[i].mask) ||
7557 nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
7558 pat_len, wowlan->patterns[i].pattern) ||
7559 nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
7560 wowlan->patterns[i].pkt_offset))
7562 nla_nest_end(msg, nl_pat);
7564 nla_nest_end(msg, nl_pats);
7569 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7570 struct cfg80211_wowlan_tcp *tcp)
7572 struct nlattr *nl_tcp;
7577 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
7581 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
7582 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
7583 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
7584 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
7585 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
7586 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
7587 tcp->payload_len, tcp->payload) ||
7588 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
7589 tcp->data_interval) ||
7590 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
7591 tcp->wake_len, tcp->wake_data) ||
7592 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
7593 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
7596 if (tcp->payload_seq.len &&
7597 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
7598 sizeof(tcp->payload_seq), &tcp->payload_seq))
7601 if (tcp->payload_tok.len &&
7602 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
7603 sizeof(tcp->payload_tok) + tcp->tokens_size,
7607 nla_nest_end(msg, nl_tcp);
7612 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
7614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7615 struct sk_buff *msg;
7617 u32 size = NLMSG_DEFAULT_SIZE;
7619 if (!rdev->wiphy.wowlan)
7622 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
7623 /* adjust size to have room for all the data */
7624 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
7625 rdev->wiphy.wowlan_config->tcp->payload_len +
7626 rdev->wiphy.wowlan_config->tcp->wake_len +
7627 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
7630 msg = nlmsg_new(size, GFP_KERNEL);
7634 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7635 NL80211_CMD_GET_WOWLAN);
7637 goto nla_put_failure;
7639 if (rdev->wiphy.wowlan_config) {
7640 struct nlattr *nl_wowlan;
7642 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
7644 goto nla_put_failure;
7646 if ((rdev->wiphy.wowlan_config->any &&
7647 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
7648 (rdev->wiphy.wowlan_config->disconnect &&
7649 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
7650 (rdev->wiphy.wowlan_config->magic_pkt &&
7651 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
7652 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
7653 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
7654 (rdev->wiphy.wowlan_config->eap_identity_req &&
7655 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
7656 (rdev->wiphy.wowlan_config->four_way_handshake &&
7657 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
7658 (rdev->wiphy.wowlan_config->rfkill_release &&
7659 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
7660 goto nla_put_failure;
7662 if (nl80211_send_wowlan_patterns(msg, rdev))
7663 goto nla_put_failure;
7665 if (nl80211_send_wowlan_tcp(msg,
7666 rdev->wiphy.wowlan_config->tcp))
7667 goto nla_put_failure;
7669 nla_nest_end(msg, nl_wowlan);
7672 genlmsg_end(msg, hdr);
7673 return genlmsg_reply(msg, info);
7680 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
7681 struct nlattr *attr,
7682 struct cfg80211_wowlan *trig)
7684 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
7685 struct cfg80211_wowlan_tcp *cfg;
7686 struct nl80211_wowlan_tcp_data_token *tok = NULL;
7687 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
7689 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
7692 if (!rdev->wiphy.wowlan->tcp)
7695 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
7696 nla_data(attr), nla_len(attr),
7697 nl80211_wowlan_tcp_policy);
7701 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
7702 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
7703 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
7704 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
7705 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
7706 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
7707 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
7708 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
7711 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
7712 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
7715 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
7716 rdev->wiphy.wowlan->tcp->data_interval_max ||
7717 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
7720 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
7721 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
7724 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
7725 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
7728 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
7729 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7731 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
7732 tokens_size = tokln - sizeof(*tok);
7734 if (!tok->len || tokens_size % tok->len)
7736 if (!rdev->wiphy.wowlan->tcp->tok)
7738 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
7740 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
7742 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
7744 if (tok->offset + tok->len > data_size)
7748 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
7749 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
7750 if (!rdev->wiphy.wowlan->tcp->seq)
7752 if (seq->len == 0 || seq->len > 4)
7754 if (seq->len + seq->offset > data_size)
7758 size = sizeof(*cfg);
7760 size += wake_size + wake_mask_size;
7761 size += tokens_size;
7763 cfg = kzalloc(size, GFP_KERNEL);
7766 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
7767 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
7768 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
7770 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
7771 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
7775 /* allocate a socket and port for it and use it */
7776 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
7777 IPPROTO_TCP, &cfg->sock, 1);
7782 if (inet_csk_get_port(cfg->sock->sk, port)) {
7783 sock_release(cfg->sock);
7787 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
7793 cfg->src_port = port;
7796 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
7797 cfg->payload_len = data_size;
7798 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
7799 memcpy((void *)cfg->payload,
7800 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
7803 cfg->payload_seq = *seq;
7804 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
7805 cfg->wake_len = wake_size;
7806 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
7807 memcpy((void *)cfg->wake_data,
7808 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
7810 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
7811 data_size + wake_size;
7812 memcpy((void *)cfg->wake_mask,
7813 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
7816 cfg->tokens_size = tokens_size;
7817 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
7825 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
7827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7828 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
7829 struct cfg80211_wowlan new_triggers = {};
7830 struct cfg80211_wowlan *ntrig;
7831 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
7833 bool prev_enabled = rdev->wiphy.wowlan_config;
7838 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
7839 cfg80211_rdev_free_wowlan(rdev);
7840 rdev->wiphy.wowlan_config = NULL;
7844 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
7845 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7846 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
7847 nl80211_wowlan_policy);
7851 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
7852 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
7854 new_triggers.any = true;
7857 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
7858 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
7860 new_triggers.disconnect = true;
7863 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
7864 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
7866 new_triggers.magic_pkt = true;
7869 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
7872 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
7873 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
7875 new_triggers.gtk_rekey_failure = true;
7878 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
7879 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
7881 new_triggers.eap_identity_req = true;
7884 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
7885 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
7887 new_triggers.four_way_handshake = true;
7890 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
7891 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
7893 new_triggers.rfkill_release = true;
7896 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
7899 int rem, pat_len, mask_len, pkt_offset;
7900 struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
7902 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7905 if (n_patterns > wowlan->n_patterns)
7908 new_triggers.patterns = kcalloc(n_patterns,
7909 sizeof(new_triggers.patterns[0]),
7911 if (!new_triggers.patterns)
7914 new_triggers.n_patterns = n_patterns;
7917 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
7919 nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
7920 nla_data(pat), nla_len(pat), NULL);
7922 if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
7923 !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
7925 pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
7926 mask_len = DIV_ROUND_UP(pat_len, 8);
7927 if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
7930 if (pat_len > wowlan->pattern_max_len ||
7931 pat_len < wowlan->pattern_min_len)
7934 if (!pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET])
7937 pkt_offset = nla_get_u32(
7938 pat_tb[NL80211_WOWLAN_PKTPAT_OFFSET]);
7939 if (pkt_offset > wowlan->max_pkt_offset)
7941 new_triggers.patterns[i].pkt_offset = pkt_offset;
7943 new_triggers.patterns[i].mask =
7944 kmalloc(mask_len + pat_len, GFP_KERNEL);
7945 if (!new_triggers.patterns[i].mask) {
7949 new_triggers.patterns[i].pattern =
7950 new_triggers.patterns[i].mask + mask_len;
7951 memcpy(new_triggers.patterns[i].mask,
7952 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
7954 new_triggers.patterns[i].pattern_len = pat_len;
7955 memcpy(new_triggers.patterns[i].pattern,
7956 nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
7962 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
7963 err = nl80211_parse_wowlan_tcp(
7964 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
7970 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
7975 cfg80211_rdev_free_wowlan(rdev);
7976 rdev->wiphy.wowlan_config = ntrig;
7979 if (rdev->ops->set_wakeup &&
7980 prev_enabled != !!rdev->wiphy.wowlan_config)
7981 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
7985 for (i = 0; i < new_triggers.n_patterns; i++)
7986 kfree(new_triggers.patterns[i].mask);
7987 kfree(new_triggers.patterns);
7988 if (new_triggers.tcp && new_triggers.tcp->sock)
7989 sock_release(new_triggers.tcp->sock);
7990 kfree(new_triggers.tcp);
7995 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
7997 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7998 struct net_device *dev = info->user_ptr[1];
7999 struct wireless_dev *wdev = dev->ieee80211_ptr;
8000 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8001 struct cfg80211_gtk_rekey_data rekey_data;
8004 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8007 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8008 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8009 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8010 nl80211_rekey_policy);
8014 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8016 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8018 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8021 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8023 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8025 memcpy(rekey_data.replay_ctr,
8026 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8027 NL80211_REPLAY_CTR_LEN);
8030 if (!wdev->current_bss) {
8035 if (!rdev->ops->set_rekey_data) {
8040 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8046 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8047 struct genl_info *info)
8049 struct net_device *dev = info->user_ptr[1];
8050 struct wireless_dev *wdev = dev->ieee80211_ptr;
8052 if (wdev->iftype != NL80211_IFTYPE_AP &&
8053 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8056 if (wdev->ap_unexpected_nlportid)
8059 wdev->ap_unexpected_nlportid = info->snd_portid;
8063 static int nl80211_probe_client(struct sk_buff *skb,
8064 struct genl_info *info)
8066 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8067 struct net_device *dev = info->user_ptr[1];
8068 struct wireless_dev *wdev = dev->ieee80211_ptr;
8069 struct sk_buff *msg;
8075 if (wdev->iftype != NL80211_IFTYPE_AP &&
8076 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8079 if (!info->attrs[NL80211_ATTR_MAC])
8082 if (!rdev->ops->probe_client)
8085 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8089 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8090 NL80211_CMD_PROBE_CLIENT);
8097 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8099 err = rdev_probe_client(rdev, dev, addr, &cookie);
8103 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8104 goto nla_put_failure;
8106 genlmsg_end(msg, hdr);
8108 return genlmsg_reply(msg, info);
8117 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8120 struct cfg80211_beacon_registration *reg, *nreg;
8123 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8126 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8130 /* First, check if already registered. */
8131 spin_lock_bh(&rdev->beacon_registrations_lock);
8132 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8133 if (reg->nlportid == info->snd_portid) {
8138 /* Add it to the list */
8139 nreg->nlportid = info->snd_portid;
8140 list_add(&nreg->list, &rdev->beacon_registrations);
8142 spin_unlock_bh(&rdev->beacon_registrations_lock);
8146 spin_unlock_bh(&rdev->beacon_registrations_lock);
8151 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8154 struct wireless_dev *wdev = info->user_ptr[1];
8157 if (!rdev->ops->start_p2p_device)
8160 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8163 if (wdev->p2p_started)
8166 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8170 err = rdev_start_p2p_device(rdev, wdev);
8174 wdev->p2p_started = true;
8180 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8182 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8183 struct wireless_dev *wdev = info->user_ptr[1];
8185 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8188 if (!rdev->ops->stop_p2p_device)
8191 cfg80211_stop_p2p_device(rdev, wdev);
8196 static int nl80211_get_protocol_features(struct sk_buff *skb,
8197 struct genl_info *info)
8200 struct sk_buff *msg;
8202 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8206 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8207 NL80211_CMD_GET_PROTOCOL_FEATURES);
8209 goto nla_put_failure;
8211 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8212 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8213 goto nla_put_failure;
8215 genlmsg_end(msg, hdr);
8216 return genlmsg_reply(msg, info);
8223 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8226 struct cfg80211_update_ft_ies_params ft_params;
8227 struct net_device *dev = info->user_ptr[1];
8229 if (!rdev->ops->update_ft_ies)
8232 if (!info->attrs[NL80211_ATTR_MDID] ||
8233 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8236 memset(&ft_params, 0, sizeof(ft_params));
8237 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8238 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8239 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8241 return rdev_update_ft_ies(rdev, dev, &ft_params);
8244 static int nl80211_crit_protocol_start(struct sk_buff *skb,
8245 struct genl_info *info)
8247 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8248 struct wireless_dev *wdev = info->user_ptr[1];
8249 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8253 if (!rdev->ops->crit_proto_start)
8256 if (WARN_ON(!rdev->ops->crit_proto_stop))
8259 if (rdev->crit_proto_nlportid)
8262 /* determine protocol if provided */
8263 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8264 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8266 if (proto >= NUM_NL80211_CRIT_PROTO)
8269 /* timeout must be provided */
8270 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8274 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8276 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8279 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8281 rdev->crit_proto_nlportid = info->snd_portid;
8286 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8287 struct genl_info *info)
8289 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8290 struct wireless_dev *wdev = info->user_ptr[1];
8292 if (!rdev->ops->crit_proto_stop)
8295 if (rdev->crit_proto_nlportid) {
8296 rdev->crit_proto_nlportid = 0;
8297 rdev_crit_proto_stop(rdev, wdev);
8302 #define NL80211_FLAG_NEED_WIPHY 0x01
8303 #define NL80211_FLAG_NEED_NETDEV 0x02
8304 #define NL80211_FLAG_NEED_RTNL 0x04
8305 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
8306 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
8307 NL80211_FLAG_CHECK_NETDEV_UP)
8308 #define NL80211_FLAG_NEED_WDEV 0x10
8309 /* If a netdev is associated, it must be UP, P2P must be started */
8310 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
8311 NL80211_FLAG_CHECK_NETDEV_UP)
8313 static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
8314 struct genl_info *info)
8316 struct cfg80211_registered_device *rdev;
8317 struct wireless_dev *wdev;
8318 struct net_device *dev;
8319 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
8324 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
8325 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
8329 return PTR_ERR(rdev);
8331 info->user_ptr[0] = rdev;
8332 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
8333 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8336 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
8341 return PTR_ERR(wdev);
8345 rdev = wiphy_to_dev(wdev->wiphy);
8347 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
8354 info->user_ptr[1] = dev;
8356 info->user_ptr[1] = wdev;
8360 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
8361 !netif_running(dev)) {
8368 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
8369 if (!wdev->p2p_started) {
8376 info->user_ptr[0] = rdev;
8382 static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
8383 struct genl_info *info)
8385 if (info->user_ptr[1]) {
8386 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
8387 struct wireless_dev *wdev = info->user_ptr[1];
8390 dev_put(wdev->netdev);
8392 dev_put(info->user_ptr[1]);
8395 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
8399 static struct genl_ops nl80211_ops[] = {
8401 .cmd = NL80211_CMD_GET_WIPHY,
8402 .doit = nl80211_get_wiphy,
8403 .dumpit = nl80211_dump_wiphy,
8404 .policy = nl80211_policy,
8405 /* can be retrieved by unprivileged users */
8406 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8407 NL80211_FLAG_NEED_RTNL,
8410 .cmd = NL80211_CMD_SET_WIPHY,
8411 .doit = nl80211_set_wiphy,
8412 .policy = nl80211_policy,
8413 .flags = GENL_ADMIN_PERM,
8414 .internal_flags = NL80211_FLAG_NEED_RTNL,
8417 .cmd = NL80211_CMD_GET_INTERFACE,
8418 .doit = nl80211_get_interface,
8419 .dumpit = nl80211_dump_interface,
8420 .policy = nl80211_policy,
8421 /* can be retrieved by unprivileged users */
8422 .internal_flags = NL80211_FLAG_NEED_WDEV |
8423 NL80211_FLAG_NEED_RTNL,
8426 .cmd = NL80211_CMD_SET_INTERFACE,
8427 .doit = nl80211_set_interface,
8428 .policy = nl80211_policy,
8429 .flags = GENL_ADMIN_PERM,
8430 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8431 NL80211_FLAG_NEED_RTNL,
8434 .cmd = NL80211_CMD_NEW_INTERFACE,
8435 .doit = nl80211_new_interface,
8436 .policy = nl80211_policy,
8437 .flags = GENL_ADMIN_PERM,
8438 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8439 NL80211_FLAG_NEED_RTNL,
8442 .cmd = NL80211_CMD_DEL_INTERFACE,
8443 .doit = nl80211_del_interface,
8444 .policy = nl80211_policy,
8445 .flags = GENL_ADMIN_PERM,
8446 .internal_flags = NL80211_FLAG_NEED_WDEV |
8447 NL80211_FLAG_NEED_RTNL,
8450 .cmd = NL80211_CMD_GET_KEY,
8451 .doit = nl80211_get_key,
8452 .policy = nl80211_policy,
8453 .flags = GENL_ADMIN_PERM,
8454 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8455 NL80211_FLAG_NEED_RTNL,
8458 .cmd = NL80211_CMD_SET_KEY,
8459 .doit = nl80211_set_key,
8460 .policy = nl80211_policy,
8461 .flags = GENL_ADMIN_PERM,
8462 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8463 NL80211_FLAG_NEED_RTNL,
8466 .cmd = NL80211_CMD_NEW_KEY,
8467 .doit = nl80211_new_key,
8468 .policy = nl80211_policy,
8469 .flags = GENL_ADMIN_PERM,
8470 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8471 NL80211_FLAG_NEED_RTNL,
8474 .cmd = NL80211_CMD_DEL_KEY,
8475 .doit = nl80211_del_key,
8476 .policy = nl80211_policy,
8477 .flags = GENL_ADMIN_PERM,
8478 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8479 NL80211_FLAG_NEED_RTNL,
8482 .cmd = NL80211_CMD_SET_BEACON,
8483 .policy = nl80211_policy,
8484 .flags = GENL_ADMIN_PERM,
8485 .doit = nl80211_set_beacon,
8486 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8487 NL80211_FLAG_NEED_RTNL,
8490 .cmd = NL80211_CMD_START_AP,
8491 .policy = nl80211_policy,
8492 .flags = GENL_ADMIN_PERM,
8493 .doit = nl80211_start_ap,
8494 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8495 NL80211_FLAG_NEED_RTNL,
8498 .cmd = NL80211_CMD_STOP_AP,
8499 .policy = nl80211_policy,
8500 .flags = GENL_ADMIN_PERM,
8501 .doit = nl80211_stop_ap,
8502 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8503 NL80211_FLAG_NEED_RTNL,
8506 .cmd = NL80211_CMD_GET_STATION,
8507 .doit = nl80211_get_station,
8508 .dumpit = nl80211_dump_station,
8509 .policy = nl80211_policy,
8510 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8511 NL80211_FLAG_NEED_RTNL,
8514 .cmd = NL80211_CMD_SET_STATION,
8515 .doit = nl80211_set_station,
8516 .policy = nl80211_policy,
8517 .flags = GENL_ADMIN_PERM,
8518 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8519 NL80211_FLAG_NEED_RTNL,
8522 .cmd = NL80211_CMD_NEW_STATION,
8523 .doit = nl80211_new_station,
8524 .policy = nl80211_policy,
8525 .flags = GENL_ADMIN_PERM,
8526 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8527 NL80211_FLAG_NEED_RTNL,
8530 .cmd = NL80211_CMD_DEL_STATION,
8531 .doit = nl80211_del_station,
8532 .policy = nl80211_policy,
8533 .flags = GENL_ADMIN_PERM,
8534 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8535 NL80211_FLAG_NEED_RTNL,
8538 .cmd = NL80211_CMD_GET_MPATH,
8539 .doit = nl80211_get_mpath,
8540 .dumpit = nl80211_dump_mpath,
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_SET_MPATH,
8548 .doit = nl80211_set_mpath,
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_NEW_MPATH,
8556 .doit = nl80211_new_mpath,
8557 .policy = nl80211_policy,
8558 .flags = GENL_ADMIN_PERM,
8559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8560 NL80211_FLAG_NEED_RTNL,
8563 .cmd = NL80211_CMD_DEL_MPATH,
8564 .doit = nl80211_del_mpath,
8565 .policy = nl80211_policy,
8566 .flags = GENL_ADMIN_PERM,
8567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8568 NL80211_FLAG_NEED_RTNL,
8571 .cmd = NL80211_CMD_SET_BSS,
8572 .doit = nl80211_set_bss,
8573 .policy = nl80211_policy,
8574 .flags = GENL_ADMIN_PERM,
8575 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8576 NL80211_FLAG_NEED_RTNL,
8579 .cmd = NL80211_CMD_GET_REG,
8580 .doit = nl80211_get_reg,
8581 .policy = nl80211_policy,
8582 .internal_flags = NL80211_FLAG_NEED_RTNL,
8583 /* can be retrieved by unprivileged users */
8586 .cmd = NL80211_CMD_SET_REG,
8587 .doit = nl80211_set_reg,
8588 .policy = nl80211_policy,
8589 .flags = GENL_ADMIN_PERM,
8590 .internal_flags = NL80211_FLAG_NEED_RTNL,
8593 .cmd = NL80211_CMD_REQ_SET_REG,
8594 .doit = nl80211_req_set_reg,
8595 .policy = nl80211_policy,
8596 .flags = GENL_ADMIN_PERM,
8599 .cmd = NL80211_CMD_GET_MESH_CONFIG,
8600 .doit = nl80211_get_mesh_config,
8601 .policy = nl80211_policy,
8602 /* can be retrieved by unprivileged users */
8603 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8604 NL80211_FLAG_NEED_RTNL,
8607 .cmd = NL80211_CMD_SET_MESH_CONFIG,
8608 .doit = nl80211_update_mesh_config,
8609 .policy = nl80211_policy,
8610 .flags = GENL_ADMIN_PERM,
8611 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8612 NL80211_FLAG_NEED_RTNL,
8615 .cmd = NL80211_CMD_TRIGGER_SCAN,
8616 .doit = nl80211_trigger_scan,
8617 .policy = nl80211_policy,
8618 .flags = GENL_ADMIN_PERM,
8619 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8620 NL80211_FLAG_NEED_RTNL,
8623 .cmd = NL80211_CMD_GET_SCAN,
8624 .policy = nl80211_policy,
8625 .dumpit = nl80211_dump_scan,
8628 .cmd = NL80211_CMD_START_SCHED_SCAN,
8629 .doit = nl80211_start_sched_scan,
8630 .policy = nl80211_policy,
8631 .flags = GENL_ADMIN_PERM,
8632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8633 NL80211_FLAG_NEED_RTNL,
8636 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
8637 .doit = nl80211_stop_sched_scan,
8638 .policy = nl80211_policy,
8639 .flags = GENL_ADMIN_PERM,
8640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8641 NL80211_FLAG_NEED_RTNL,
8644 .cmd = NL80211_CMD_AUTHENTICATE,
8645 .doit = nl80211_authenticate,
8646 .policy = nl80211_policy,
8647 .flags = GENL_ADMIN_PERM,
8648 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8649 NL80211_FLAG_NEED_RTNL,
8652 .cmd = NL80211_CMD_ASSOCIATE,
8653 .doit = nl80211_associate,
8654 .policy = nl80211_policy,
8655 .flags = GENL_ADMIN_PERM,
8656 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8657 NL80211_FLAG_NEED_RTNL,
8660 .cmd = NL80211_CMD_DEAUTHENTICATE,
8661 .doit = nl80211_deauthenticate,
8662 .policy = nl80211_policy,
8663 .flags = GENL_ADMIN_PERM,
8664 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8665 NL80211_FLAG_NEED_RTNL,
8668 .cmd = NL80211_CMD_DISASSOCIATE,
8669 .doit = nl80211_disassociate,
8670 .policy = nl80211_policy,
8671 .flags = GENL_ADMIN_PERM,
8672 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8673 NL80211_FLAG_NEED_RTNL,
8676 .cmd = NL80211_CMD_JOIN_IBSS,
8677 .doit = nl80211_join_ibss,
8678 .policy = nl80211_policy,
8679 .flags = GENL_ADMIN_PERM,
8680 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8681 NL80211_FLAG_NEED_RTNL,
8684 .cmd = NL80211_CMD_LEAVE_IBSS,
8685 .doit = nl80211_leave_ibss,
8686 .policy = nl80211_policy,
8687 .flags = GENL_ADMIN_PERM,
8688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8689 NL80211_FLAG_NEED_RTNL,
8691 #ifdef CONFIG_NL80211_TESTMODE
8693 .cmd = NL80211_CMD_TESTMODE,
8694 .doit = nl80211_testmode_do,
8695 .dumpit = nl80211_testmode_dump,
8696 .policy = nl80211_policy,
8697 .flags = GENL_ADMIN_PERM,
8698 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8699 NL80211_FLAG_NEED_RTNL,
8703 .cmd = NL80211_CMD_CONNECT,
8704 .doit = nl80211_connect,
8705 .policy = nl80211_policy,
8706 .flags = GENL_ADMIN_PERM,
8707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8708 NL80211_FLAG_NEED_RTNL,
8711 .cmd = NL80211_CMD_DISCONNECT,
8712 .doit = nl80211_disconnect,
8713 .policy = nl80211_policy,
8714 .flags = GENL_ADMIN_PERM,
8715 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8716 NL80211_FLAG_NEED_RTNL,
8719 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
8720 .doit = nl80211_wiphy_netns,
8721 .policy = nl80211_policy,
8722 .flags = GENL_ADMIN_PERM,
8723 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8724 NL80211_FLAG_NEED_RTNL,
8727 .cmd = NL80211_CMD_GET_SURVEY,
8728 .policy = nl80211_policy,
8729 .dumpit = nl80211_dump_survey,
8732 .cmd = NL80211_CMD_SET_PMKSA,
8733 .doit = nl80211_setdel_pmksa,
8734 .policy = nl80211_policy,
8735 .flags = GENL_ADMIN_PERM,
8736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8737 NL80211_FLAG_NEED_RTNL,
8740 .cmd = NL80211_CMD_DEL_PMKSA,
8741 .doit = nl80211_setdel_pmksa,
8742 .policy = nl80211_policy,
8743 .flags = GENL_ADMIN_PERM,
8744 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8745 NL80211_FLAG_NEED_RTNL,
8748 .cmd = NL80211_CMD_FLUSH_PMKSA,
8749 .doit = nl80211_flush_pmksa,
8750 .policy = nl80211_policy,
8751 .flags = GENL_ADMIN_PERM,
8752 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8753 NL80211_FLAG_NEED_RTNL,
8756 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
8757 .doit = nl80211_remain_on_channel,
8758 .policy = nl80211_policy,
8759 .flags = GENL_ADMIN_PERM,
8760 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8761 NL80211_FLAG_NEED_RTNL,
8764 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
8765 .doit = nl80211_cancel_remain_on_channel,
8766 .policy = nl80211_policy,
8767 .flags = GENL_ADMIN_PERM,
8768 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8769 NL80211_FLAG_NEED_RTNL,
8772 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
8773 .doit = nl80211_set_tx_bitrate_mask,
8774 .policy = nl80211_policy,
8775 .flags = GENL_ADMIN_PERM,
8776 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8777 NL80211_FLAG_NEED_RTNL,
8780 .cmd = NL80211_CMD_REGISTER_FRAME,
8781 .doit = nl80211_register_mgmt,
8782 .policy = nl80211_policy,
8783 .flags = GENL_ADMIN_PERM,
8784 .internal_flags = NL80211_FLAG_NEED_WDEV |
8785 NL80211_FLAG_NEED_RTNL,
8788 .cmd = NL80211_CMD_FRAME,
8789 .doit = nl80211_tx_mgmt,
8790 .policy = nl80211_policy,
8791 .flags = GENL_ADMIN_PERM,
8792 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8793 NL80211_FLAG_NEED_RTNL,
8796 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
8797 .doit = nl80211_tx_mgmt_cancel_wait,
8798 .policy = nl80211_policy,
8799 .flags = GENL_ADMIN_PERM,
8800 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8801 NL80211_FLAG_NEED_RTNL,
8804 .cmd = NL80211_CMD_SET_POWER_SAVE,
8805 .doit = nl80211_set_power_save,
8806 .policy = nl80211_policy,
8807 .flags = GENL_ADMIN_PERM,
8808 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8809 NL80211_FLAG_NEED_RTNL,
8812 .cmd = NL80211_CMD_GET_POWER_SAVE,
8813 .doit = nl80211_get_power_save,
8814 .policy = nl80211_policy,
8815 /* can be retrieved by unprivileged users */
8816 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8817 NL80211_FLAG_NEED_RTNL,
8820 .cmd = NL80211_CMD_SET_CQM,
8821 .doit = nl80211_set_cqm,
8822 .policy = nl80211_policy,
8823 .flags = GENL_ADMIN_PERM,
8824 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8825 NL80211_FLAG_NEED_RTNL,
8828 .cmd = NL80211_CMD_SET_CHANNEL,
8829 .doit = nl80211_set_channel,
8830 .policy = nl80211_policy,
8831 .flags = GENL_ADMIN_PERM,
8832 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8833 NL80211_FLAG_NEED_RTNL,
8836 .cmd = NL80211_CMD_SET_WDS_PEER,
8837 .doit = nl80211_set_wds_peer,
8838 .policy = nl80211_policy,
8839 .flags = GENL_ADMIN_PERM,
8840 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8841 NL80211_FLAG_NEED_RTNL,
8844 .cmd = NL80211_CMD_JOIN_MESH,
8845 .doit = nl80211_join_mesh,
8846 .policy = nl80211_policy,
8847 .flags = GENL_ADMIN_PERM,
8848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8849 NL80211_FLAG_NEED_RTNL,
8852 .cmd = NL80211_CMD_LEAVE_MESH,
8853 .doit = nl80211_leave_mesh,
8854 .policy = nl80211_policy,
8855 .flags = GENL_ADMIN_PERM,
8856 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8857 NL80211_FLAG_NEED_RTNL,
8861 .cmd = NL80211_CMD_GET_WOWLAN,
8862 .doit = nl80211_get_wowlan,
8863 .policy = nl80211_policy,
8864 /* can be retrieved by unprivileged users */
8865 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8866 NL80211_FLAG_NEED_RTNL,
8869 .cmd = NL80211_CMD_SET_WOWLAN,
8870 .doit = nl80211_set_wowlan,
8871 .policy = nl80211_policy,
8872 .flags = GENL_ADMIN_PERM,
8873 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8874 NL80211_FLAG_NEED_RTNL,
8878 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
8879 .doit = nl80211_set_rekey_data,
8880 .policy = nl80211_policy,
8881 .flags = GENL_ADMIN_PERM,
8882 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8883 NL80211_FLAG_NEED_RTNL,
8886 .cmd = NL80211_CMD_TDLS_MGMT,
8887 .doit = nl80211_tdls_mgmt,
8888 .policy = nl80211_policy,
8889 .flags = GENL_ADMIN_PERM,
8890 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8891 NL80211_FLAG_NEED_RTNL,
8894 .cmd = NL80211_CMD_TDLS_OPER,
8895 .doit = nl80211_tdls_oper,
8896 .policy = nl80211_policy,
8897 .flags = GENL_ADMIN_PERM,
8898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8899 NL80211_FLAG_NEED_RTNL,
8902 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
8903 .doit = nl80211_register_unexpected_frame,
8904 .policy = nl80211_policy,
8905 .flags = GENL_ADMIN_PERM,
8906 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8907 NL80211_FLAG_NEED_RTNL,
8910 .cmd = NL80211_CMD_PROBE_CLIENT,
8911 .doit = nl80211_probe_client,
8912 .policy = nl80211_policy,
8913 .flags = GENL_ADMIN_PERM,
8914 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8915 NL80211_FLAG_NEED_RTNL,
8918 .cmd = NL80211_CMD_REGISTER_BEACONS,
8919 .doit = nl80211_register_beacons,
8920 .policy = nl80211_policy,
8921 .flags = GENL_ADMIN_PERM,
8922 .internal_flags = NL80211_FLAG_NEED_WIPHY |
8923 NL80211_FLAG_NEED_RTNL,
8926 .cmd = NL80211_CMD_SET_NOACK_MAP,
8927 .doit = nl80211_set_noack_map,
8928 .policy = nl80211_policy,
8929 .flags = GENL_ADMIN_PERM,
8930 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8931 NL80211_FLAG_NEED_RTNL,
8934 .cmd = NL80211_CMD_START_P2P_DEVICE,
8935 .doit = nl80211_start_p2p_device,
8936 .policy = nl80211_policy,
8937 .flags = GENL_ADMIN_PERM,
8938 .internal_flags = NL80211_FLAG_NEED_WDEV |
8939 NL80211_FLAG_NEED_RTNL,
8942 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
8943 .doit = nl80211_stop_p2p_device,
8944 .policy = nl80211_policy,
8945 .flags = GENL_ADMIN_PERM,
8946 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8947 NL80211_FLAG_NEED_RTNL,
8950 .cmd = NL80211_CMD_SET_MCAST_RATE,
8951 .doit = nl80211_set_mcast_rate,
8952 .policy = nl80211_policy,
8953 .flags = GENL_ADMIN_PERM,
8954 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8955 NL80211_FLAG_NEED_RTNL,
8958 .cmd = NL80211_CMD_SET_MAC_ACL,
8959 .doit = nl80211_set_mac_acl,
8960 .policy = nl80211_policy,
8961 .flags = GENL_ADMIN_PERM,
8962 .internal_flags = NL80211_FLAG_NEED_NETDEV |
8963 NL80211_FLAG_NEED_RTNL,
8966 .cmd = NL80211_CMD_RADAR_DETECT,
8967 .doit = nl80211_start_radar_detection,
8968 .policy = nl80211_policy,
8969 .flags = GENL_ADMIN_PERM,
8970 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8971 NL80211_FLAG_NEED_RTNL,
8974 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
8975 .doit = nl80211_get_protocol_features,
8976 .policy = nl80211_policy,
8979 .cmd = NL80211_CMD_UPDATE_FT_IES,
8980 .doit = nl80211_update_ft_ies,
8981 .policy = nl80211_policy,
8982 .flags = GENL_ADMIN_PERM,
8983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
8984 NL80211_FLAG_NEED_RTNL,
8987 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
8988 .doit = nl80211_crit_protocol_start,
8989 .policy = nl80211_policy,
8990 .flags = GENL_ADMIN_PERM,
8991 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
8992 NL80211_FLAG_NEED_RTNL,
8995 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
8996 .doit = nl80211_crit_protocol_stop,
8997 .policy = nl80211_policy,
8998 .flags = GENL_ADMIN_PERM,
8999 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9000 NL80211_FLAG_NEED_RTNL,
9004 static struct genl_multicast_group nl80211_mlme_mcgrp = {
9008 /* multicast groups */
9009 static struct genl_multicast_group nl80211_config_mcgrp = {
9012 static struct genl_multicast_group nl80211_scan_mcgrp = {
9015 static struct genl_multicast_group nl80211_regulatory_mcgrp = {
9016 .name = "regulatory",
9019 /* notification functions */
9021 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9023 struct sk_buff *msg;
9025 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9029 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0,
9030 false, NULL, NULL, NULL) < 0) {
9035 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9036 nl80211_config_mcgrp.id, GFP_KERNEL);
9039 static int nl80211_add_scan_req(struct sk_buff *msg,
9040 struct cfg80211_registered_device *rdev)
9042 struct cfg80211_scan_request *req = rdev->scan_req;
9043 struct nlattr *nest;
9049 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9051 goto nla_put_failure;
9052 for (i = 0; i < req->n_ssids; i++) {
9053 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9054 goto nla_put_failure;
9056 nla_nest_end(msg, nest);
9058 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9060 goto nla_put_failure;
9061 for (i = 0; i < req->n_channels; i++) {
9062 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9063 goto nla_put_failure;
9065 nla_nest_end(msg, nest);
9068 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9069 goto nla_put_failure;
9072 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags);
9079 static int nl80211_send_scan_msg(struct sk_buff *msg,
9080 struct cfg80211_registered_device *rdev,
9081 struct wireless_dev *wdev,
9082 u32 portid, u32 seq, int flags,
9087 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9091 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9092 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9093 wdev->netdev->ifindex)) ||
9094 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9095 goto nla_put_failure;
9097 /* ignore errors and send incomplete event anyway */
9098 nl80211_add_scan_req(msg, rdev);
9100 return genlmsg_end(msg, hdr);
9103 genlmsg_cancel(msg, hdr);
9108 nl80211_send_sched_scan_msg(struct sk_buff *msg,
9109 struct cfg80211_registered_device *rdev,
9110 struct net_device *netdev,
9111 u32 portid, u32 seq, int flags, u32 cmd)
9115 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9119 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9120 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9121 goto nla_put_failure;
9123 return genlmsg_end(msg, hdr);
9126 genlmsg_cancel(msg, hdr);
9130 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
9131 struct wireless_dev *wdev)
9133 struct sk_buff *msg;
9135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9139 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9140 NL80211_CMD_TRIGGER_SCAN) < 0) {
9145 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9146 nl80211_scan_mcgrp.id, GFP_KERNEL);
9149 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
9150 struct wireless_dev *wdev)
9152 struct sk_buff *msg;
9154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9158 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9159 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
9164 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9165 nl80211_scan_mcgrp.id, GFP_KERNEL);
9168 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
9169 struct wireless_dev *wdev)
9171 struct sk_buff *msg;
9173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9177 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
9178 NL80211_CMD_SCAN_ABORTED) < 0) {
9183 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9184 nl80211_scan_mcgrp.id, GFP_KERNEL);
9187 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
9188 struct net_device *netdev)
9190 struct sk_buff *msg;
9192 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9196 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
9197 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
9202 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9203 nl80211_scan_mcgrp.id, GFP_KERNEL);
9206 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
9207 struct net_device *netdev, u32 cmd)
9209 struct sk_buff *msg;
9211 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9215 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
9220 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9221 nl80211_scan_mcgrp.id, GFP_KERNEL);
9225 * This can happen on global regulatory changes or device specific settings
9226 * based on custom world regulatory domains.
9228 void nl80211_send_reg_change_event(struct regulatory_request *request)
9230 struct sk_buff *msg;
9233 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9237 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
9243 /* Userspace can always count this one always being set */
9244 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
9245 goto nla_put_failure;
9247 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
9248 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9249 NL80211_REGDOM_TYPE_WORLD))
9250 goto nla_put_failure;
9251 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
9252 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9253 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
9254 goto nla_put_failure;
9255 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
9256 request->intersect) {
9257 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9258 NL80211_REGDOM_TYPE_INTERSECTION))
9259 goto nla_put_failure;
9261 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
9262 NL80211_REGDOM_TYPE_COUNTRY) ||
9263 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
9265 goto nla_put_failure;
9268 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
9269 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
9270 goto nla_put_failure;
9272 genlmsg_end(msg, hdr);
9275 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9282 genlmsg_cancel(msg, hdr);
9286 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
9287 struct net_device *netdev,
9288 const u8 *buf, size_t len,
9289 enum nl80211_commands cmd, gfp_t gfp)
9291 struct sk_buff *msg;
9294 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9298 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9304 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9305 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9306 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9307 goto nla_put_failure;
9309 genlmsg_end(msg, hdr);
9311 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9312 nl80211_mlme_mcgrp.id, gfp);
9316 genlmsg_cancel(msg, hdr);
9320 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
9321 struct net_device *netdev, const u8 *buf,
9322 size_t len, gfp_t gfp)
9324 nl80211_send_mlme_event(rdev, netdev, buf, len,
9325 NL80211_CMD_AUTHENTICATE, gfp);
9328 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
9329 struct net_device *netdev, const u8 *buf,
9330 size_t len, gfp_t gfp)
9332 nl80211_send_mlme_event(rdev, netdev, buf, len,
9333 NL80211_CMD_ASSOCIATE, gfp);
9336 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
9337 struct net_device *netdev, const u8 *buf,
9338 size_t len, gfp_t gfp)
9340 nl80211_send_mlme_event(rdev, netdev, buf, len,
9341 NL80211_CMD_DEAUTHENTICATE, gfp);
9344 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
9345 struct net_device *netdev, const u8 *buf,
9346 size_t len, gfp_t gfp)
9348 nl80211_send_mlme_event(rdev, netdev, buf, len,
9349 NL80211_CMD_DISASSOCIATE, gfp);
9352 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
9355 struct wireless_dev *wdev = dev->ieee80211_ptr;
9356 struct wiphy *wiphy = wdev->wiphy;
9357 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9358 const struct ieee80211_mgmt *mgmt = (void *)buf;
9361 if (WARN_ON(len < 2))
9364 if (ieee80211_is_deauth(mgmt->frame_control))
9365 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
9367 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
9369 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
9370 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
9372 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
9374 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
9375 struct net_device *netdev, int cmd,
9376 const u8 *addr, gfp_t gfp)
9378 struct sk_buff *msg;
9381 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9385 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9391 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9392 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9393 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
9394 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9395 goto nla_put_failure;
9397 genlmsg_end(msg, hdr);
9399 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9400 nl80211_mlme_mcgrp.id, gfp);
9404 genlmsg_cancel(msg, hdr);
9408 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
9409 struct net_device *netdev, const u8 *addr,
9412 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
9416 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
9417 struct net_device *netdev, const u8 *addr,
9420 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
9424 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
9425 struct net_device *netdev, const u8 *bssid,
9426 const u8 *req_ie, size_t req_ie_len,
9427 const u8 *resp_ie, size_t resp_ie_len,
9428 u16 status, gfp_t gfp)
9430 struct sk_buff *msg;
9433 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9437 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
9443 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9444 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9445 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
9446 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
9448 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9450 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9451 goto nla_put_failure;
9453 genlmsg_end(msg, hdr);
9455 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9456 nl80211_mlme_mcgrp.id, gfp);
9460 genlmsg_cancel(msg, hdr);
9465 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
9466 struct net_device *netdev, const u8 *bssid,
9467 const u8 *req_ie, size_t req_ie_len,
9468 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
9470 struct sk_buff *msg;
9473 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9477 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
9483 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9484 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9485 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
9487 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
9489 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
9490 goto nla_put_failure;
9492 genlmsg_end(msg, hdr);
9494 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9495 nl80211_mlme_mcgrp.id, gfp);
9499 genlmsg_cancel(msg, hdr);
9504 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
9505 struct net_device *netdev, u16 reason,
9506 const u8 *ie, size_t ie_len, bool from_ap)
9508 struct sk_buff *msg;
9511 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9515 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
9521 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9522 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9523 (from_ap && reason &&
9524 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
9526 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
9527 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
9528 goto nla_put_failure;
9530 genlmsg_end(msg, hdr);
9532 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9533 nl80211_mlme_mcgrp.id, GFP_KERNEL);
9537 genlmsg_cancel(msg, hdr);
9542 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
9543 struct net_device *netdev, const u8 *bssid,
9546 struct sk_buff *msg;
9549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
9559 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9560 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9561 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
9562 goto nla_put_failure;
9564 genlmsg_end(msg, hdr);
9566 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9567 nl80211_mlme_mcgrp.id, gfp);
9571 genlmsg_cancel(msg, hdr);
9575 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
9576 const u8* ie, u8 ie_len, gfp_t gfp)
9578 struct wireless_dev *wdev = dev->ieee80211_ptr;
9579 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9580 struct sk_buff *msg;
9583 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
9586 trace_cfg80211_notify_new_peer_candidate(dev, addr);
9588 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9592 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
9598 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9599 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9600 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
9602 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
9603 goto nla_put_failure;
9605 genlmsg_end(msg, hdr);
9607 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9608 nl80211_mlme_mcgrp.id, gfp);
9612 genlmsg_cancel(msg, hdr);
9615 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
9617 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
9618 struct net_device *netdev, const u8 *addr,
9619 enum nl80211_key_type key_type, int key_id,
9620 const u8 *tsc, gfp_t gfp)
9622 struct sk_buff *msg;
9625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9629 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
9635 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9636 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
9637 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
9638 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
9640 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
9641 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
9642 goto nla_put_failure;
9644 genlmsg_end(msg, hdr);
9646 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9647 nl80211_mlme_mcgrp.id, gfp);
9651 genlmsg_cancel(msg, hdr);
9655 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
9656 struct ieee80211_channel *channel_before,
9657 struct ieee80211_channel *channel_after)
9659 struct sk_buff *msg;
9661 struct nlattr *nl_freq;
9663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
9667 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
9674 * Since we are applying the beacon hint to a wiphy we know its
9675 * wiphy_idx is valid
9677 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
9678 goto nla_put_failure;
9681 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
9683 goto nla_put_failure;
9684 if (nl80211_msg_put_channel(msg, channel_before, false))
9685 goto nla_put_failure;
9686 nla_nest_end(msg, nl_freq);
9689 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
9691 goto nla_put_failure;
9692 if (nl80211_msg_put_channel(msg, channel_after, false))
9693 goto nla_put_failure;
9694 nla_nest_end(msg, nl_freq);
9696 genlmsg_end(msg, hdr);
9699 genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
9706 genlmsg_cancel(msg, hdr);
9710 static void nl80211_send_remain_on_chan_event(
9711 int cmd, struct cfg80211_registered_device *rdev,
9712 struct wireless_dev *wdev, u64 cookie,
9713 struct ieee80211_channel *chan,
9714 unsigned int duration, gfp_t gfp)
9716 struct sk_buff *msg;
9719 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9723 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9729 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9730 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9731 wdev->netdev->ifindex)) ||
9732 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9733 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
9734 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
9735 NL80211_CHAN_NO_HT) ||
9736 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9737 goto nla_put_failure;
9739 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
9740 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
9741 goto nla_put_failure;
9743 genlmsg_end(msg, hdr);
9745 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9746 nl80211_mlme_mcgrp.id, gfp);
9750 genlmsg_cancel(msg, hdr);
9754 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
9755 struct ieee80211_channel *chan,
9756 unsigned int duration, gfp_t gfp)
9758 struct wiphy *wiphy = wdev->wiphy;
9759 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9761 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
9762 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
9763 rdev, wdev, cookie, chan,
9766 EXPORT_SYMBOL(cfg80211_ready_on_channel);
9768 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
9769 struct ieee80211_channel *chan,
9772 struct wiphy *wiphy = wdev->wiphy;
9773 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9775 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
9776 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9777 rdev, wdev, cookie, chan, 0, gfp);
9779 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
9781 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
9782 struct station_info *sinfo, gfp_t gfp)
9784 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9785 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9786 struct sk_buff *msg;
9788 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
9790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9794 if (nl80211_send_station(msg, 0, 0, 0,
9795 rdev, dev, mac_addr, sinfo) < 0) {
9800 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9801 nl80211_mlme_mcgrp.id, gfp);
9803 EXPORT_SYMBOL(cfg80211_new_sta);
9805 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
9807 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9808 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9809 struct sk_buff *msg;
9812 trace_cfg80211_del_sta(dev, mac_addr);
9814 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9818 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
9824 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9825 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
9826 goto nla_put_failure;
9828 genlmsg_end(msg, hdr);
9830 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9831 nl80211_mlme_mcgrp.id, gfp);
9835 genlmsg_cancel(msg, hdr);
9838 EXPORT_SYMBOL(cfg80211_del_sta);
9840 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
9841 enum nl80211_connect_failed_reason reason,
9844 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
9845 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9846 struct sk_buff *msg;
9849 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
9853 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
9859 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9860 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
9861 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
9862 goto nla_put_failure;
9864 genlmsg_end(msg, hdr);
9866 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
9867 nl80211_mlme_mcgrp.id, gfp);
9871 genlmsg_cancel(msg, hdr);
9874 EXPORT_SYMBOL(cfg80211_conn_failed);
9876 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
9877 const u8 *addr, gfp_t gfp)
9879 struct wireless_dev *wdev = dev->ieee80211_ptr;
9880 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
9881 struct sk_buff *msg;
9883 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
9888 msg = nlmsg_new(100, gfp);
9892 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
9898 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9899 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
9900 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
9901 goto nla_put_failure;
9903 genlmsg_end(msg, hdr);
9904 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9908 genlmsg_cancel(msg, hdr);
9913 bool cfg80211_rx_spurious_frame(struct net_device *dev,
9914 const u8 *addr, gfp_t gfp)
9916 struct wireless_dev *wdev = dev->ieee80211_ptr;
9919 trace_cfg80211_rx_spurious_frame(dev, addr);
9921 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9922 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
9923 trace_cfg80211_return_bool(false);
9926 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
9928 trace_cfg80211_return_bool(ret);
9931 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
9933 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
9934 const u8 *addr, gfp_t gfp)
9936 struct wireless_dev *wdev = dev->ieee80211_ptr;
9939 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
9941 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
9942 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
9943 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
9944 trace_cfg80211_return_bool(false);
9947 ret = __nl80211_unexpected_frame(dev,
9948 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
9950 trace_cfg80211_return_bool(ret);
9953 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
9955 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
9956 struct wireless_dev *wdev, u32 nlportid,
9957 int freq, int sig_dbm,
9958 const u8 *buf, size_t len, gfp_t gfp)
9960 struct net_device *netdev = wdev->netdev;
9961 struct sk_buff *msg;
9964 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
9968 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
9974 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9975 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9976 netdev->ifindex)) ||
9977 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
9978 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
9980 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
9981 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
9982 goto nla_put_failure;
9984 genlmsg_end(msg, hdr);
9986 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
9989 genlmsg_cancel(msg, hdr);
9994 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
9995 const u8 *buf, size_t len, bool ack, gfp_t gfp)
9997 struct wiphy *wiphy = wdev->wiphy;
9998 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9999 struct net_device *netdev = wdev->netdev;
10000 struct sk_buff *msg;
10003 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10005 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10009 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10015 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10016 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10017 netdev->ifindex)) ||
10018 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10019 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10020 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10021 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10022 goto nla_put_failure;
10024 genlmsg_end(msg, hdr);
10026 genlmsg_multicast(msg, 0, nl80211_mlme_mcgrp.id, gfp);
10030 genlmsg_cancel(msg, hdr);
10033 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
10035 void cfg80211_cqm_rssi_notify(struct net_device *dev,
10036 enum nl80211_cqm_rssi_threshold_event rssi_event,
10039 struct wireless_dev *wdev = dev->ieee80211_ptr;
10040 struct wiphy *wiphy = wdev->wiphy;
10041 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10042 struct sk_buff *msg;
10043 struct nlattr *pinfoattr;
10046 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10048 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10052 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10058 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10059 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
10060 goto nla_put_failure;
10062 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10064 goto nla_put_failure;
10066 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10068 goto nla_put_failure;
10070 nla_nest_end(msg, pinfoattr);
10072 genlmsg_end(msg, hdr);
10074 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10075 nl80211_mlme_mcgrp.id, gfp);
10079 genlmsg_cancel(msg, hdr);
10082 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
10084 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10085 struct net_device *netdev, const u8 *bssid,
10086 const u8 *replay_ctr, gfp_t gfp)
10088 struct sk_buff *msg;
10089 struct nlattr *rekey_attr;
10092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10102 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10103 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10104 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10105 goto nla_put_failure;
10107 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10109 goto nla_put_failure;
10111 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10112 NL80211_REPLAY_CTR_LEN, replay_ctr))
10113 goto nla_put_failure;
10115 nla_nest_end(msg, rekey_attr);
10117 genlmsg_end(msg, hdr);
10119 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10120 nl80211_mlme_mcgrp.id, gfp);
10124 genlmsg_cancel(msg, hdr);
10128 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10129 const u8 *replay_ctr, gfp_t gfp)
10131 struct wireless_dev *wdev = dev->ieee80211_ptr;
10132 struct wiphy *wiphy = wdev->wiphy;
10133 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10135 trace_cfg80211_gtk_rekey_notify(dev, bssid);
10136 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
10138 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
10141 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
10142 struct net_device *netdev, int index,
10143 const u8 *bssid, bool preauth, gfp_t gfp)
10145 struct sk_buff *msg;
10146 struct nlattr *attr;
10149 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10153 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
10159 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10160 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10161 goto nla_put_failure;
10163 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
10165 goto nla_put_failure;
10167 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
10168 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
10170 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
10171 goto nla_put_failure;
10173 nla_nest_end(msg, attr);
10175 genlmsg_end(msg, hdr);
10177 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10178 nl80211_mlme_mcgrp.id, gfp);
10182 genlmsg_cancel(msg, hdr);
10186 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
10187 const u8 *bssid, bool preauth, gfp_t gfp)
10189 struct wireless_dev *wdev = dev->ieee80211_ptr;
10190 struct wiphy *wiphy = wdev->wiphy;
10191 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10193 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
10194 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
10196 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
10198 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
10199 struct net_device *netdev,
10200 struct cfg80211_chan_def *chandef,
10203 struct sk_buff *msg;
10206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10210 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
10216 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10217 goto nla_put_failure;
10219 if (nl80211_send_chandef(msg, chandef))
10220 goto nla_put_failure;
10222 genlmsg_end(msg, hdr);
10224 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10225 nl80211_mlme_mcgrp.id, gfp);
10229 genlmsg_cancel(msg, hdr);
10233 void cfg80211_ch_switch_notify(struct net_device *dev,
10234 struct cfg80211_chan_def *chandef)
10236 struct wireless_dev *wdev = dev->ieee80211_ptr;
10237 struct wiphy *wiphy = wdev->wiphy;
10238 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10240 trace_cfg80211_ch_switch_notify(dev, chandef);
10244 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10245 wdev->iftype != NL80211_IFTYPE_P2P_GO))
10248 wdev->channel = chandef->chan;
10249 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
10254 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
10256 void cfg80211_cqm_txe_notify(struct net_device *dev,
10257 const u8 *peer, u32 num_packets,
10258 u32 rate, u32 intvl, gfp_t gfp)
10260 struct wireless_dev *wdev = dev->ieee80211_ptr;
10261 struct wiphy *wiphy = wdev->wiphy;
10262 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10263 struct sk_buff *msg;
10264 struct nlattr *pinfoattr;
10267 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10271 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10277 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10278 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10279 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10280 goto nla_put_failure;
10282 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10284 goto nla_put_failure;
10286 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
10287 goto nla_put_failure;
10289 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
10290 goto nla_put_failure;
10292 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
10293 goto nla_put_failure;
10295 nla_nest_end(msg, pinfoattr);
10297 genlmsg_end(msg, hdr);
10299 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10300 nl80211_mlme_mcgrp.id, gfp);
10304 genlmsg_cancel(msg, hdr);
10307 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
10310 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
10311 struct cfg80211_chan_def *chandef,
10312 enum nl80211_radar_event event,
10313 struct net_device *netdev, gfp_t gfp)
10315 struct sk_buff *msg;
10318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10322 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
10328 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
10329 goto nla_put_failure;
10331 /* NOP and radar events don't need a netdev parameter */
10333 struct wireless_dev *wdev = netdev->ieee80211_ptr;
10335 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10336 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10337 goto nla_put_failure;
10340 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
10341 goto nla_put_failure;
10343 if (nl80211_send_chandef(msg, chandef))
10344 goto nla_put_failure;
10346 genlmsg_end(msg, hdr);
10348 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10349 nl80211_mlme_mcgrp.id, gfp);
10353 genlmsg_cancel(msg, hdr);
10357 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
10358 const u8 *peer, u32 num_packets, gfp_t gfp)
10360 struct wireless_dev *wdev = dev->ieee80211_ptr;
10361 struct wiphy *wiphy = wdev->wiphy;
10362 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10363 struct sk_buff *msg;
10364 struct nlattr *pinfoattr;
10367 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
10369 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10373 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10379 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10380 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10381 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
10382 goto nla_put_failure;
10384 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10386 goto nla_put_failure;
10388 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
10389 goto nla_put_failure;
10391 nla_nest_end(msg, pinfoattr);
10393 genlmsg_end(msg, hdr);
10395 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10396 nl80211_mlme_mcgrp.id, gfp);
10400 genlmsg_cancel(msg, hdr);
10403 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
10405 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
10406 u64 cookie, bool acked, gfp_t gfp)
10408 struct wireless_dev *wdev = dev->ieee80211_ptr;
10409 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10410 struct sk_buff *msg;
10413 trace_cfg80211_probe_status(dev, addr, cookie, acked);
10415 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10420 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
10426 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10427 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10428 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10429 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10430 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
10431 goto nla_put_failure;
10433 genlmsg_end(msg, hdr);
10435 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10436 nl80211_mlme_mcgrp.id, gfp);
10440 genlmsg_cancel(msg, hdr);
10443 EXPORT_SYMBOL(cfg80211_probe_status);
10445 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
10446 const u8 *frame, size_t len,
10447 int freq, int sig_dbm)
10449 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10450 struct sk_buff *msg;
10452 struct cfg80211_beacon_registration *reg;
10454 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
10456 spin_lock_bh(&rdev->beacon_registrations_lock);
10457 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
10458 msg = nlmsg_new(len + 100, GFP_ATOMIC);
10460 spin_unlock_bh(&rdev->beacon_registrations_lock);
10464 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10466 goto nla_put_failure;
10468 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10470 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
10472 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10473 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
10474 goto nla_put_failure;
10476 genlmsg_end(msg, hdr);
10478 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
10480 spin_unlock_bh(&rdev->beacon_registrations_lock);
10484 spin_unlock_bh(&rdev->beacon_registrations_lock);
10486 genlmsg_cancel(msg, hdr);
10489 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
10492 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
10493 struct cfg80211_wowlan_wakeup *wakeup,
10496 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10497 struct sk_buff *msg;
10501 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
10504 size += wakeup->packet_present_len;
10506 msg = nlmsg_new(size, gfp);
10510 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
10514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10515 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10518 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10519 wdev->netdev->ifindex))
10523 struct nlattr *reasons;
10525 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
10527 if (wakeup->disconnect &&
10528 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
10530 if (wakeup->magic_pkt &&
10531 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
10533 if (wakeup->gtk_rekey_failure &&
10534 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
10536 if (wakeup->eap_identity_req &&
10537 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
10539 if (wakeup->four_way_handshake &&
10540 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
10542 if (wakeup->rfkill_release &&
10543 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
10546 if (wakeup->pattern_idx >= 0 &&
10547 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
10548 wakeup->pattern_idx))
10551 if (wakeup->tcp_match)
10552 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH);
10554 if (wakeup->tcp_connlost)
10556 NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST);
10558 if (wakeup->tcp_nomoretokens)
10560 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS);
10562 if (wakeup->packet) {
10563 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
10564 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
10566 if (!wakeup->packet_80211) {
10568 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
10570 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
10573 if (wakeup->packet_len &&
10574 nla_put_u32(msg, len_attr, wakeup->packet_len))
10577 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
10582 nla_nest_end(msg, reasons);
10585 genlmsg_end(msg, hdr);
10587 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10588 nl80211_mlme_mcgrp.id, gfp);
10594 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
10597 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
10598 enum nl80211_tdls_operation oper,
10599 u16 reason_code, gfp_t gfp)
10601 struct wireless_dev *wdev = dev->ieee80211_ptr;
10602 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10603 struct sk_buff *msg;
10606 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
10609 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10613 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
10619 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10620 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10621 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
10622 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
10623 (reason_code > 0 &&
10624 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
10625 goto nla_put_failure;
10627 genlmsg_end(msg, hdr);
10629 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10630 nl80211_mlme_mcgrp.id, gfp);
10634 genlmsg_cancel(msg, hdr);
10637 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
10639 static int nl80211_netlink_notify(struct notifier_block * nb,
10640 unsigned long state,
10643 struct netlink_notify *notify = _notify;
10644 struct cfg80211_registered_device *rdev;
10645 struct wireless_dev *wdev;
10646 struct cfg80211_beacon_registration *reg, *tmp;
10648 if (state != NETLINK_URELEASE)
10649 return NOTIFY_DONE;
10653 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
10654 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
10655 cfg80211_mlme_unregister_socket(wdev, notify->portid);
10657 spin_lock_bh(&rdev->beacon_registrations_lock);
10658 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
10660 if (reg->nlportid == notify->portid) {
10661 list_del(®->list);
10666 spin_unlock_bh(&rdev->beacon_registrations_lock);
10671 return NOTIFY_DONE;
10674 static struct notifier_block nl80211_netlink_notifier = {
10675 .notifier_call = nl80211_netlink_notify,
10678 void cfg80211_ft_event(struct net_device *netdev,
10679 struct cfg80211_ft_event_params *ft_event)
10681 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
10682 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10683 struct sk_buff *msg;
10686 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
10688 if (!ft_event->target_ap)
10691 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10695 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
10701 nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx);
10702 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex);
10703 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap);
10705 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies);
10706 if (ft_event->ric_ies)
10707 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
10708 ft_event->ric_ies);
10710 genlmsg_end(msg, hdr);
10712 genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
10713 nl80211_mlme_mcgrp.id, GFP_KERNEL);
10715 EXPORT_SYMBOL(cfg80211_ft_event);
10717 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
10719 struct cfg80211_registered_device *rdev;
10720 struct sk_buff *msg;
10724 rdev = wiphy_to_dev(wdev->wiphy);
10725 if (!rdev->crit_proto_nlportid)
10728 nlportid = rdev->crit_proto_nlportid;
10729 rdev->crit_proto_nlportid = 0;
10731 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10735 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
10737 goto nla_put_failure;
10739 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10740 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10741 goto nla_put_failure;
10743 genlmsg_end(msg, hdr);
10745 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10750 genlmsg_cancel(msg, hdr);
10754 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
10756 /* initialisation/exit functions */
10758 int nl80211_init(void)
10762 err = genl_register_family_with_ops(&nl80211_fam,
10763 nl80211_ops, ARRAY_SIZE(nl80211_ops));
10767 err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
10771 err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
10775 err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
10779 err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
10783 #ifdef CONFIG_NL80211_TESTMODE
10784 err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
10789 err = netlink_register_notifier(&nl80211_netlink_notifier);
10795 genl_unregister_family(&nl80211_fam);
10799 void nl80211_exit(void)
10801 netlink_unregister_notifier(&nl80211_netlink_notifier);
10802 genl_unregister_family(&nl80211_fam);