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(const struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35 static void nl80211_post_doit(const 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 /* multicast groups */
51 enum nl80211_multicast_groups {
54 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60 static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
66 #ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
71 /* returns ERR_PTR values */
72 static struct wireless_dev *
73 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
98 if (wiphy_net(&rdev->wiphy) != netns)
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
122 return ERR_PTR(-ENODEV);
125 static struct cfg80211_registered_device *
126 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
133 if (!attrs[NL80211_ATTR_WIPHY] &&
134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
136 return ERR_PTR(-EINVAL);
138 if (attrs[NL80211_ATTR_WIPHY])
139 rdev = cfg80211_rdev_by_wiphy_idx(
140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 /* make sure wdev exists */
150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
168 netdev = __dev_get_by_index(netns, ifindex);
170 if (netdev->ieee80211_ptr)
172 netdev->ieee80211_ptr->wiphy);
176 /* not wireless device -- return error */
178 return ERR_PTR(-EINVAL);
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
189 return ERR_PTR(-ENODEV);
191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
204 static struct cfg80211_registered_device *
205 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
210 /* policy for the attributes */
211 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_MESH_ID_LEN },
261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
385 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
386 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
387 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
390 /* policy for the key attributes */
391 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
392 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
393 [NL80211_KEY_IDX] = { .type = NLA_U8 },
394 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
395 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
396 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
397 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
398 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
399 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
402 /* policy for the key default flags */
403 static const struct nla_policy
404 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
405 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
406 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
409 /* policy for WoWLAN attributes */
410 static const struct nla_policy
411 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
412 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
413 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
416 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
423 static const struct nla_policy
424 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
425 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
426 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
427 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
428 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
429 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
430 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
431 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
432 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
434 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
435 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
437 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
438 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
439 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
442 /* policy for coalesce rule attributes */
443 static const struct nla_policy
444 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
445 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
446 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
447 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
450 /* policy for GTK rekey offload attributes */
451 static const struct nla_policy
452 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
453 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
454 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
455 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
458 static const struct nla_policy
459 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
460 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
461 .len = IEEE80211_MAX_SSID_LEN },
462 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
465 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
466 struct netlink_callback *cb,
467 struct cfg80211_registered_device **rdev,
468 struct wireless_dev **wdev)
475 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
476 nl80211_fam.attrbuf, nl80211_fam.maxattr,
481 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
482 nl80211_fam.attrbuf);
484 err = PTR_ERR(*wdev);
487 *rdev = wiphy_to_dev((*wdev)->wiphy);
488 /* 0 is the first index - add 1 to parse only once */
489 cb->args[0] = (*rdev)->wiphy_idx + 1;
490 cb->args[1] = (*wdev)->identifier;
492 /* subtract the 1 again here */
493 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
494 struct wireless_dev *tmp;
500 *rdev = wiphy_to_dev(wiphy);
503 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
504 if (tmp->identifier == cb->args[1]) {
522 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
528 static bool is_valid_ie_attr(const struct nlattr *attr)
536 pos = nla_data(attr);
557 /* message building helper */
558 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
561 /* since there is no private header just add the generic one */
562 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
565 static int nl80211_msg_put_channel(struct sk_buff *msg,
566 struct ieee80211_channel *chan,
569 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
571 goto nla_put_failure;
573 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
574 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
575 goto nla_put_failure;
576 if (chan->flags & IEEE80211_CHAN_NO_IR) {
577 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
578 goto nla_put_failure;
579 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
580 goto nla_put_failure;
582 if (chan->flags & IEEE80211_CHAN_RADAR) {
583 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
584 goto nla_put_failure;
588 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
590 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
592 goto nla_put_failure;
593 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
595 goto nla_put_failure;
597 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
599 goto nla_put_failure;
604 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
605 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
606 goto nla_put_failure;
607 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
608 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
609 goto nla_put_failure;
610 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
611 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
612 goto nla_put_failure;
613 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
614 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
615 goto nla_put_failure;
618 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
619 DBM_TO_MBM(chan->max_power)))
620 goto nla_put_failure;
628 /* netlink command implementations */
635 bool def_uni, def_multi;
638 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
640 struct nlattr *tb[NL80211_KEY_MAX + 1];
641 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
646 k->def = !!tb[NL80211_KEY_DEFAULT];
647 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
656 if (tb[NL80211_KEY_IDX])
657 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
659 if (tb[NL80211_KEY_DATA]) {
660 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
661 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
664 if (tb[NL80211_KEY_SEQ]) {
665 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
666 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
669 if (tb[NL80211_KEY_CIPHER])
670 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
672 if (tb[NL80211_KEY_TYPE]) {
673 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
674 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
678 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
679 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
680 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
681 tb[NL80211_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_old(struct genl_info *info, struct key_parse *k)
695 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
696 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
697 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
700 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
701 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
702 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
705 if (info->attrs[NL80211_ATTR_KEY_IDX])
706 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
708 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
709 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
711 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
712 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
721 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
722 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
723 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
727 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
728 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
729 int err = nla_parse_nested(
730 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
731 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
732 nl80211_key_default_policy);
736 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
737 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
743 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
747 memset(k, 0, sizeof(*k));
751 if (info->attrs[NL80211_ATTR_KEY])
752 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
754 err = nl80211_parse_key_old(info, k);
759 if (k->def && k->defmgmt)
763 if (k->def_uni || !k->def_multi)
769 if (k->idx < 4 || k->idx > 5)
772 if (k->idx < 0 || k->idx > 3)
775 if (k->idx < 0 || k->idx > 5)
783 static struct cfg80211_cached_keys *
784 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
785 struct nlattr *keys, bool *no_ht)
787 struct key_parse parse;
789 struct cfg80211_cached_keys *result;
790 int rem, err, def = 0;
792 result = kzalloc(sizeof(*result), GFP_KERNEL);
794 return ERR_PTR(-ENOMEM);
797 result->defmgmt = -1;
799 nla_for_each_nested(key, keys, rem) {
800 memset(&parse, 0, sizeof(parse));
803 err = nl80211_parse_key_new(key, &parse);
809 if (parse.idx < 0 || parse.idx > 4)
815 result->def = parse.idx;
816 if (!parse.def_uni || !parse.def_multi)
818 } else if (parse.defmgmt)
820 err = cfg80211_validate_key_settings(rdev, &parse.p,
821 parse.idx, false, NULL);
824 result->params[parse.idx].cipher = parse.p.cipher;
825 result->params[parse.idx].key_len = parse.p.key_len;
826 result->params[parse.idx].key = result->data[parse.idx];
827 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
829 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
830 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
842 static int nl80211_key_allowed(struct wireless_dev *wdev)
844 ASSERT_WDEV_LOCK(wdev);
846 switch (wdev->iftype) {
847 case NL80211_IFTYPE_AP:
848 case NL80211_IFTYPE_AP_VLAN:
849 case NL80211_IFTYPE_P2P_GO:
850 case NL80211_IFTYPE_MESH_POINT:
852 case NL80211_IFTYPE_ADHOC:
853 case NL80211_IFTYPE_STATION:
854 case NL80211_IFTYPE_P2P_CLIENT:
855 if (!wdev->current_bss)
865 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
868 struct ieee80211_channel *chan;
872 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
873 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
878 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
880 struct nlattr *nl_modes = nla_nest_start(msg, attr);
884 goto nla_put_failure;
888 if ((ifmodes & 1) && nla_put_flag(msg, i))
889 goto nla_put_failure;
894 nla_nest_end(msg, nl_modes);
901 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
905 struct nlattr *nl_combis;
908 nl_combis = nla_nest_start(msg,
909 NL80211_ATTR_INTERFACE_COMBINATIONS);
911 goto nla_put_failure;
913 for (i = 0; i < wiphy->n_iface_combinations; i++) {
914 const struct ieee80211_iface_combination *c;
915 struct nlattr *nl_combi, *nl_limits;
917 c = &wiphy->iface_combinations[i];
919 nl_combi = nla_nest_start(msg, i + 1);
921 goto nla_put_failure;
923 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
925 goto nla_put_failure;
927 for (j = 0; j < c->n_limits; j++) {
928 struct nlattr *nl_limit;
930 nl_limit = nla_nest_start(msg, j + 1);
932 goto nla_put_failure;
933 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
935 goto nla_put_failure;
936 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
938 goto nla_put_failure;
939 nla_nest_end(msg, nl_limit);
942 nla_nest_end(msg, nl_limits);
944 if (c->beacon_int_infra_match &&
945 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
946 goto nla_put_failure;
947 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
948 c->num_different_channels) ||
949 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
951 goto nla_put_failure;
953 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
954 c->radar_detect_widths))
955 goto nla_put_failure;
957 nla_nest_end(msg, nl_combi);
960 nla_nest_end(msg, nl_combis);
968 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
971 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
972 struct nlattr *nl_tcp;
977 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
981 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
982 tcp->data_payload_max))
985 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
986 tcp->data_payload_max))
989 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
992 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
993 sizeof(*tcp->tok), tcp->tok))
996 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
997 tcp->data_interval_max))
1000 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1001 tcp->wake_payload_max))
1004 nla_nest_end(msg, nl_tcp);
1008 static int nl80211_send_wowlan(struct sk_buff *msg,
1009 struct cfg80211_registered_device *dev,
1012 struct nlattr *nl_wowlan;
1014 if (!dev->wiphy.wowlan)
1017 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1021 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1022 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1023 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1024 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1025 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1026 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1027 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1028 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1029 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1030 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1031 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1032 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1033 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1034 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1035 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1036 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1039 if (dev->wiphy.wowlan->n_patterns) {
1040 struct nl80211_pattern_support pat = {
1041 .max_patterns = dev->wiphy.wowlan->n_patterns,
1042 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1043 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1044 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
1047 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1052 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1055 nla_nest_end(msg, nl_wowlan);
1061 static int nl80211_send_coalesce(struct sk_buff *msg,
1062 struct cfg80211_registered_device *dev)
1064 struct nl80211_coalesce_rule_support rule;
1066 if (!dev->wiphy.coalesce)
1069 rule.max_rules = dev->wiphy.coalesce->n_rules;
1070 rule.max_delay = dev->wiphy.coalesce->max_delay;
1071 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1072 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1073 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1074 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1076 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1082 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1083 struct ieee80211_supported_band *sband)
1085 struct nlattr *nl_rates, *nl_rate;
1086 struct ieee80211_rate *rate;
1090 if (sband->ht_cap.ht_supported &&
1091 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1092 sizeof(sband->ht_cap.mcs),
1093 &sband->ht_cap.mcs) ||
1094 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1095 sband->ht_cap.cap) ||
1096 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1097 sband->ht_cap.ampdu_factor) ||
1098 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1099 sband->ht_cap.ampdu_density)))
1103 if (sband->vht_cap.vht_supported &&
1104 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1105 sizeof(sband->vht_cap.vht_mcs),
1106 &sband->vht_cap.vht_mcs) ||
1107 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1108 sband->vht_cap.cap)))
1112 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1116 for (i = 0; i < sband->n_bitrates; i++) {
1117 nl_rate = nla_nest_start(msg, i);
1121 rate = &sband->bitrates[i];
1122 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1125 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1127 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1130 nla_nest_end(msg, nl_rate);
1133 nla_nest_end(msg, nl_rates);
1139 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1140 const struct ieee80211_txrx_stypes *mgmt_stypes)
1143 struct nlattr *nl_ftypes, *nl_ifs;
1144 enum nl80211_iftype ift;
1150 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1154 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1155 nl_ftypes = nla_nest_start(msg, ift);
1159 stypes = mgmt_stypes[ift].tx;
1162 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1163 (i << 4) | IEEE80211_FTYPE_MGMT))
1168 nla_nest_end(msg, nl_ftypes);
1171 nla_nest_end(msg, nl_ifs);
1173 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1177 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1178 nl_ftypes = nla_nest_start(msg, ift);
1182 stypes = mgmt_stypes[ift].rx;
1185 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1186 (i << 4) | IEEE80211_FTYPE_MGMT))
1191 nla_nest_end(msg, nl_ftypes);
1193 nla_nest_end(msg, nl_ifs);
1198 struct nl80211_dump_wiphy_state {
1201 long split_start, band_start, chan_start;
1205 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1206 struct sk_buff *msg, u32 portid, u32 seq,
1207 int flags, struct nl80211_dump_wiphy_state *state)
1210 struct nlattr *nl_bands, *nl_band;
1211 struct nlattr *nl_freqs, *nl_freq;
1212 struct nlattr *nl_cmds;
1213 enum ieee80211_band band;
1214 struct ieee80211_channel *chan;
1216 const struct ieee80211_txrx_stypes *mgmt_stypes =
1217 dev->wiphy.mgmt_stypes;
1220 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1224 if (WARN_ON(!state))
1227 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1228 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1229 wiphy_name(&dev->wiphy)) ||
1230 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1231 cfg80211_rdev_list_generation))
1232 goto nla_put_failure;
1234 switch (state->split_start) {
1236 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1237 dev->wiphy.retry_short) ||
1238 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1239 dev->wiphy.retry_long) ||
1240 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1241 dev->wiphy.frag_threshold) ||
1242 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1243 dev->wiphy.rts_threshold) ||
1244 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1245 dev->wiphy.coverage_class) ||
1246 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1247 dev->wiphy.max_scan_ssids) ||
1248 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1249 dev->wiphy.max_sched_scan_ssids) ||
1250 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1251 dev->wiphy.max_scan_ie_len) ||
1252 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1253 dev->wiphy.max_sched_scan_ie_len) ||
1254 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1255 dev->wiphy.max_match_sets))
1256 goto nla_put_failure;
1258 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1259 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1260 goto nla_put_failure;
1261 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1262 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1263 goto nla_put_failure;
1264 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1265 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1266 goto nla_put_failure;
1267 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1268 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1269 goto nla_put_failure;
1270 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1271 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1272 goto nla_put_failure;
1273 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1274 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1275 goto nla_put_failure;
1276 state->split_start++;
1280 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1281 sizeof(u32) * dev->wiphy.n_cipher_suites,
1282 dev->wiphy.cipher_suites))
1283 goto nla_put_failure;
1285 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1286 dev->wiphy.max_num_pmkids))
1287 goto nla_put_failure;
1289 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1290 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1291 goto nla_put_failure;
1293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1294 dev->wiphy.available_antennas_tx) ||
1295 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1296 dev->wiphy.available_antennas_rx))
1297 goto nla_put_failure;
1299 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1300 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1301 dev->wiphy.probe_resp_offload))
1302 goto nla_put_failure;
1304 if ((dev->wiphy.available_antennas_tx ||
1305 dev->wiphy.available_antennas_rx) &&
1306 dev->ops->get_antenna) {
1307 u32 tx_ant = 0, rx_ant = 0;
1309 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1311 if (nla_put_u32(msg,
1312 NL80211_ATTR_WIPHY_ANTENNA_TX,
1315 NL80211_ATTR_WIPHY_ANTENNA_RX,
1317 goto nla_put_failure;
1321 state->split_start++;
1325 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1326 dev->wiphy.interface_modes))
1327 goto nla_put_failure;
1328 state->split_start++;
1332 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1334 goto nla_put_failure;
1336 for (band = state->band_start;
1337 band < IEEE80211_NUM_BANDS; band++) {
1338 struct ieee80211_supported_band *sband;
1340 sband = dev->wiphy.bands[band];
1345 nl_band = nla_nest_start(msg, band);
1347 goto nla_put_failure;
1349 switch (state->chan_start) {
1351 if (nl80211_send_band_rateinfo(msg, sband))
1352 goto nla_put_failure;
1353 state->chan_start++;
1357 /* add frequencies */
1358 nl_freqs = nla_nest_start(
1359 msg, NL80211_BAND_ATTR_FREQS);
1361 goto nla_put_failure;
1363 for (i = state->chan_start - 1;
1364 i < sband->n_channels;
1366 nl_freq = nla_nest_start(msg, i);
1368 goto nla_put_failure;
1370 chan = &sband->channels[i];
1372 if (nl80211_msg_put_channel(
1375 goto nla_put_failure;
1377 nla_nest_end(msg, nl_freq);
1381 if (i < sband->n_channels)
1382 state->chan_start = i + 2;
1384 state->chan_start = 0;
1385 nla_nest_end(msg, nl_freqs);
1388 nla_nest_end(msg, nl_band);
1391 /* start again here */
1392 if (state->chan_start)
1397 nla_nest_end(msg, nl_bands);
1399 if (band < IEEE80211_NUM_BANDS)
1400 state->band_start = band + 1;
1402 state->band_start = 0;
1404 /* if bands & channels are done, continue outside */
1405 if (state->band_start == 0 && state->chan_start == 0)
1406 state->split_start++;
1410 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1412 goto nla_put_failure;
1415 #define CMD(op, n) \
1417 if (dev->ops->op) { \
1419 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1420 goto nla_put_failure; \
1424 CMD(add_virtual_intf, NEW_INTERFACE);
1425 CMD(change_virtual_intf, SET_INTERFACE);
1426 CMD(add_key, NEW_KEY);
1427 CMD(start_ap, START_AP);
1428 CMD(add_station, NEW_STATION);
1429 CMD(add_mpath, NEW_MPATH);
1430 CMD(update_mesh_config, SET_MESH_CONFIG);
1431 CMD(change_bss, SET_BSS);
1432 CMD(auth, AUTHENTICATE);
1433 CMD(assoc, ASSOCIATE);
1434 CMD(deauth, DEAUTHENTICATE);
1435 CMD(disassoc, DISASSOCIATE);
1436 CMD(join_ibss, JOIN_IBSS);
1437 CMD(join_mesh, JOIN_MESH);
1438 CMD(set_pmksa, SET_PMKSA);
1439 CMD(del_pmksa, DEL_PMKSA);
1440 CMD(flush_pmksa, FLUSH_PMKSA);
1441 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1442 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1443 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1444 CMD(mgmt_tx, FRAME);
1445 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1446 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1448 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1449 goto nla_put_failure;
1451 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1452 dev->ops->join_mesh) {
1454 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1455 goto nla_put_failure;
1457 CMD(set_wds_peer, SET_WDS_PEER);
1458 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1459 CMD(tdls_mgmt, TDLS_MGMT);
1460 CMD(tdls_oper, TDLS_OPER);
1462 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1463 CMD(sched_scan_start, START_SCHED_SCAN);
1464 CMD(probe_client, PROBE_CLIENT);
1465 CMD(set_noack_map, SET_NOACK_MAP);
1466 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1468 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1469 goto nla_put_failure;
1471 CMD(start_p2p_device, START_P2P_DEVICE);
1472 CMD(set_mcast_rate, SET_MCAST_RATE);
1474 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1475 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1476 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1477 CMD(channel_switch, CHANNEL_SWITCH);
1479 CMD(set_qos_map, SET_QOS_MAP);
1481 #ifdef CONFIG_NL80211_TESTMODE
1482 CMD(testmode_cmd, TESTMODE);
1487 if (dev->ops->connect || dev->ops->auth) {
1489 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1490 goto nla_put_failure;
1493 if (dev->ops->disconnect || dev->ops->deauth) {
1495 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1496 goto nla_put_failure;
1499 nla_nest_end(msg, nl_cmds);
1500 state->split_start++;
1504 if (dev->ops->remain_on_channel &&
1505 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1507 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1508 dev->wiphy.max_remain_on_channel_duration))
1509 goto nla_put_failure;
1511 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1512 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1513 goto nla_put_failure;
1515 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1516 goto nla_put_failure;
1517 state->split_start++;
1522 if (nl80211_send_wowlan(msg, dev, state->split))
1523 goto nla_put_failure;
1524 state->split_start++;
1528 state->split_start++;
1531 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1532 dev->wiphy.software_iftypes))
1533 goto nla_put_failure;
1535 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1537 goto nla_put_failure;
1539 state->split_start++;
1543 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1544 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1545 dev->wiphy.ap_sme_capa))
1546 goto nla_put_failure;
1548 features = dev->wiphy.features;
1550 * We can only add the per-channel limit information if the
1551 * dump is split, otherwise it makes it too big. Therefore
1552 * only advertise it in that case.
1555 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1556 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1557 goto nla_put_failure;
1559 if (dev->wiphy.ht_capa_mod_mask &&
1560 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1561 sizeof(*dev->wiphy.ht_capa_mod_mask),
1562 dev->wiphy.ht_capa_mod_mask))
1563 goto nla_put_failure;
1565 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1566 dev->wiphy.max_acl_mac_addrs &&
1567 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1568 dev->wiphy.max_acl_mac_addrs))
1569 goto nla_put_failure;
1572 * Any information below this point is only available to
1573 * applications that can deal with it being split. This
1574 * helps ensure that newly added capabilities don't break
1575 * older tools by overrunning their buffers.
1577 * We still increment split_start so that in the split
1578 * case we'll continue with more data in the next round,
1579 * but break unconditionally so unsplit data stops here.
1581 state->split_start++;
1584 if (dev->wiphy.extended_capabilities &&
1585 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1586 dev->wiphy.extended_capabilities_len,
1587 dev->wiphy.extended_capabilities) ||
1588 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1589 dev->wiphy.extended_capabilities_len,
1590 dev->wiphy.extended_capabilities_mask)))
1591 goto nla_put_failure;
1593 if (dev->wiphy.vht_capa_mod_mask &&
1594 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1595 sizeof(*dev->wiphy.vht_capa_mod_mask),
1596 dev->wiphy.vht_capa_mod_mask))
1597 goto nla_put_failure;
1599 state->split_start++;
1602 if (nl80211_send_coalesce(msg, dev))
1603 goto nla_put_failure;
1605 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1606 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1607 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1608 goto nla_put_failure;
1610 if (dev->wiphy.max_ap_assoc_sta &&
1611 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1612 dev->wiphy.max_ap_assoc_sta))
1613 goto nla_put_failure;
1615 state->split_start++;
1618 if (dev->wiphy.n_vendor_commands) {
1619 const struct nl80211_vendor_cmd_info *info;
1620 struct nlattr *nested;
1622 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1624 goto nla_put_failure;
1626 for (i = 0; i < dev->wiphy.n_vendor_commands; i++) {
1627 info = &dev->wiphy.vendor_commands[i].info;
1628 if (nla_put(msg, i + 1, sizeof(*info), info))
1629 goto nla_put_failure;
1631 nla_nest_end(msg, nested);
1634 if (dev->wiphy.n_vendor_events) {
1635 const struct nl80211_vendor_cmd_info *info;
1636 struct nlattr *nested;
1638 nested = nla_nest_start(msg,
1639 NL80211_ATTR_VENDOR_EVENTS);
1641 goto nla_put_failure;
1643 for (i = 0; i < dev->wiphy.n_vendor_events; i++) {
1644 info = &dev->wiphy.vendor_events[i];
1645 if (nla_put(msg, i + 1, sizeof(*info), info))
1646 goto nla_put_failure;
1648 nla_nest_end(msg, nested);
1652 state->split_start = 0;
1655 return genlmsg_end(msg, hdr);
1658 genlmsg_cancel(msg, hdr);
1662 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1663 struct netlink_callback *cb,
1664 struct nl80211_dump_wiphy_state *state)
1666 struct nlattr **tb = nl80211_fam.attrbuf;
1667 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1668 tb, nl80211_fam.maxattr, nl80211_policy);
1669 /* ignore parse errors for backward compatibility */
1673 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1674 if (tb[NL80211_ATTR_WIPHY])
1675 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1676 if (tb[NL80211_ATTR_WDEV])
1677 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1678 if (tb[NL80211_ATTR_IFINDEX]) {
1679 struct net_device *netdev;
1680 struct cfg80211_registered_device *rdev;
1681 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1683 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1686 if (netdev->ieee80211_ptr) {
1687 rdev = wiphy_to_dev(
1688 netdev->ieee80211_ptr->wiphy);
1689 state->filter_wiphy = rdev->wiphy_idx;
1696 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1699 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1700 struct cfg80211_registered_device *dev;
1704 state = kzalloc(sizeof(*state), GFP_KERNEL);
1709 state->filter_wiphy = -1;
1710 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1716 cb->args[0] = (long)state;
1719 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1720 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1722 if (++idx <= state->start)
1724 if (state->filter_wiphy != -1 &&
1725 state->filter_wiphy != dev->wiphy_idx)
1727 /* attempt to fit multiple wiphy data chunks into the skb */
1729 ret = nl80211_send_wiphy(dev, skb,
1730 NETLINK_CB(cb->skb).portid,
1732 NLM_F_MULTI, state);
1735 * If sending the wiphy data didn't fit (ENOBUFS
1736 * or EMSGSIZE returned), this SKB is still
1737 * empty (so it's not too big because another
1738 * wiphy dataset is already in the skb) and
1739 * we've not tried to adjust the dump allocation
1740 * yet ... then adjust the alloc size to be
1741 * bigger, and return 1 but with the empty skb.
1742 * This results in an empty message being RX'ed
1743 * in userspace, but that is ignored.
1745 * We can then retry with the larger buffer.
1747 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1748 !skb->len && !state->split &&
1749 cb->min_dump_alloc < 4096) {
1750 cb->min_dump_alloc = 4096;
1751 state->split_start = 0;
1758 } while (state->split_start > 0);
1768 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1770 kfree((void *)cb->args[0]);
1774 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1776 struct sk_buff *msg;
1777 struct cfg80211_registered_device *dev = info->user_ptr[0];
1778 struct nl80211_dump_wiphy_state state = {};
1780 msg = nlmsg_new(4096, GFP_KERNEL);
1784 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1790 return genlmsg_reply(msg, info);
1793 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1794 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1795 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1796 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1797 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1798 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1801 static int parse_txq_params(struct nlattr *tb[],
1802 struct ieee80211_txq_params *txq_params)
1804 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1805 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1806 !tb[NL80211_TXQ_ATTR_AIFS])
1809 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1810 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1811 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1812 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1813 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1815 if (txq_params->ac >= NL80211_NUM_ACS)
1821 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1824 * You can only set the channel explicitly for WDS interfaces,
1825 * all others have their channel managed via their respective
1826 * "establish a connection" command (connect, join, ...)
1828 * For AP/GO and mesh mode, the channel can be set with the
1829 * channel userspace API, but is only stored and passed to the
1830 * low-level driver when the AP starts or the mesh is joined.
1831 * This is for backward compatibility, userspace can also give
1832 * the channel in the start-ap or join-mesh commands instead.
1834 * Monitors are special as they are normally slaved to
1835 * whatever else is going on, so they have their own special
1836 * operation to set the monitor channel if possible.
1839 wdev->iftype == NL80211_IFTYPE_AP ||
1840 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1841 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1842 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1845 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1846 struct genl_info *info,
1847 struct cfg80211_chan_def *chandef)
1851 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1854 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1856 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1857 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1858 chandef->center_freq1 = control_freq;
1859 chandef->center_freq2 = 0;
1861 /* Primary channel not allowed */
1862 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1865 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1866 enum nl80211_channel_type chantype;
1868 chantype = nla_get_u32(
1869 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1872 case NL80211_CHAN_NO_HT:
1873 case NL80211_CHAN_HT20:
1874 case NL80211_CHAN_HT40PLUS:
1875 case NL80211_CHAN_HT40MINUS:
1876 cfg80211_chandef_create(chandef, chandef->chan,
1882 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1884 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1885 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1886 chandef->center_freq1 =
1888 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1889 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1890 chandef->center_freq2 =
1892 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1895 if (!cfg80211_chandef_valid(chandef))
1898 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1899 IEEE80211_CHAN_DISABLED))
1902 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1903 chandef->width == NL80211_CHAN_WIDTH_10) &&
1904 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1910 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1911 struct wireless_dev *wdev,
1912 struct genl_info *info)
1914 struct cfg80211_chan_def chandef;
1916 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1919 iftype = wdev->iftype;
1921 if (!nl80211_can_set_dev_channel(wdev))
1924 result = nl80211_parse_chandef(rdev, info, &chandef);
1929 case NL80211_IFTYPE_AP:
1930 case NL80211_IFTYPE_P2P_GO:
1931 if (wdev->beacon_interval) {
1935 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1939 wdev->preset_chandef = chandef;
1942 case NL80211_IFTYPE_MESH_POINT:
1943 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1945 case NL80211_IFTYPE_MONITOR:
1946 result = cfg80211_set_monitor_channel(rdev, &chandef);
1955 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1958 struct net_device *netdev = info->user_ptr[1];
1960 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1963 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1965 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1966 struct net_device *dev = info->user_ptr[1];
1967 struct wireless_dev *wdev = dev->ieee80211_ptr;
1970 if (!info->attrs[NL80211_ATTR_MAC])
1973 if (netif_running(dev))
1976 if (!rdev->ops->set_wds_peer)
1979 if (wdev->iftype != NL80211_IFTYPE_WDS)
1982 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1983 return rdev_set_wds_peer(rdev, dev, bssid);
1987 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1989 struct cfg80211_registered_device *rdev;
1990 struct net_device *netdev = NULL;
1991 struct wireless_dev *wdev;
1992 int result = 0, rem_txq_params = 0;
1993 struct nlattr *nl_txq_params;
1995 u8 retry_short = 0, retry_long = 0;
1996 u32 frag_threshold = 0, rts_threshold = 0;
1997 u8 coverage_class = 0;
2002 * Try to find the wiphy and netdev. Normally this
2003 * function shouldn't need the netdev, but this is
2004 * done for backward compatibility -- previously
2005 * setting the channel was done per wiphy, but now
2006 * it is per netdev. Previous userland like hostapd
2007 * also passed a netdev to set_wiphy, so that it is
2008 * possible to let that go to the right netdev!
2011 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2012 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2014 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2015 if (netdev && netdev->ieee80211_ptr)
2016 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
2022 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2025 return PTR_ERR(rdev);
2030 wdev = netdev->ieee80211_ptr;
2033 * end workaround code, by now the rdev is available
2034 * and locked, and wdev may or may not be NULL.
2037 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2038 result = cfg80211_dev_rename(
2039 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2044 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2045 struct ieee80211_txq_params txq_params;
2046 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2048 if (!rdev->ops->set_txq_params)
2054 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2055 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2058 if (!netif_running(netdev))
2061 nla_for_each_nested(nl_txq_params,
2062 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2064 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2065 nla_data(nl_txq_params),
2066 nla_len(nl_txq_params),
2070 result = parse_txq_params(tb, &txq_params);
2074 result = rdev_set_txq_params(rdev, netdev,
2081 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2082 result = __nl80211_set_channel(rdev,
2083 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2089 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2090 struct wireless_dev *txp_wdev = wdev;
2091 enum nl80211_tx_power_setting type;
2094 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2097 if (!rdev->ops->set_tx_power)
2100 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2101 type = nla_get_u32(info->attrs[idx]);
2103 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2104 (type != NL80211_TX_POWER_AUTOMATIC))
2107 if (type != NL80211_TX_POWER_AUTOMATIC) {
2108 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2109 mbm = nla_get_u32(info->attrs[idx]);
2112 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2117 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2118 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2120 if ((!rdev->wiphy.available_antennas_tx &&
2121 !rdev->wiphy.available_antennas_rx) ||
2122 !rdev->ops->set_antenna)
2125 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2126 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2128 /* reject antenna configurations which don't match the
2129 * available antenna masks, except for the "all" mask */
2130 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2131 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2134 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2135 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2137 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2144 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2145 retry_short = nla_get_u8(
2146 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2147 if (retry_short == 0)
2150 changed |= WIPHY_PARAM_RETRY_SHORT;
2153 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2154 retry_long = nla_get_u8(
2155 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2156 if (retry_long == 0)
2159 changed |= WIPHY_PARAM_RETRY_LONG;
2162 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2163 frag_threshold = nla_get_u32(
2164 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2165 if (frag_threshold < 256)
2168 if (frag_threshold != (u32) -1) {
2170 * Fragments (apart from the last one) are required to
2171 * have even length. Make the fragmentation code
2172 * simpler by stripping LSB should someone try to use
2173 * odd threshold value.
2175 frag_threshold &= ~0x1;
2177 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2180 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2181 rts_threshold = nla_get_u32(
2182 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2183 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2186 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2187 coverage_class = nla_get_u8(
2188 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2189 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2193 u8 old_retry_short, old_retry_long;
2194 u32 old_frag_threshold, old_rts_threshold;
2195 u8 old_coverage_class;
2197 if (!rdev->ops->set_wiphy_params)
2200 old_retry_short = rdev->wiphy.retry_short;
2201 old_retry_long = rdev->wiphy.retry_long;
2202 old_frag_threshold = rdev->wiphy.frag_threshold;
2203 old_rts_threshold = rdev->wiphy.rts_threshold;
2204 old_coverage_class = rdev->wiphy.coverage_class;
2206 if (changed & WIPHY_PARAM_RETRY_SHORT)
2207 rdev->wiphy.retry_short = retry_short;
2208 if (changed & WIPHY_PARAM_RETRY_LONG)
2209 rdev->wiphy.retry_long = retry_long;
2210 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2211 rdev->wiphy.frag_threshold = frag_threshold;
2212 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2213 rdev->wiphy.rts_threshold = rts_threshold;
2214 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2215 rdev->wiphy.coverage_class = coverage_class;
2217 result = rdev_set_wiphy_params(rdev, changed);
2219 rdev->wiphy.retry_short = old_retry_short;
2220 rdev->wiphy.retry_long = old_retry_long;
2221 rdev->wiphy.frag_threshold = old_frag_threshold;
2222 rdev->wiphy.rts_threshold = old_rts_threshold;
2223 rdev->wiphy.coverage_class = old_coverage_class;
2229 static inline u64 wdev_id(struct wireless_dev *wdev)
2231 return (u64)wdev->identifier |
2232 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2235 static int nl80211_send_chandef(struct sk_buff *msg,
2236 const struct cfg80211_chan_def *chandef)
2238 WARN_ON(!cfg80211_chandef_valid(chandef));
2240 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2241 chandef->chan->center_freq))
2243 switch (chandef->width) {
2244 case NL80211_CHAN_WIDTH_20_NOHT:
2245 case NL80211_CHAN_WIDTH_20:
2246 case NL80211_CHAN_WIDTH_40:
2247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2248 cfg80211_get_chandef_type(chandef)))
2254 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2256 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2258 if (chandef->center_freq2 &&
2259 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2264 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2265 struct cfg80211_registered_device *rdev,
2266 struct wireless_dev *wdev)
2268 struct net_device *dev = wdev->netdev;
2271 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2276 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2277 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2278 goto nla_put_failure;
2280 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2281 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2282 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2283 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2284 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2285 rdev->devlist_generation ^
2286 (cfg80211_rdev_list_generation << 2)))
2287 goto nla_put_failure;
2289 if (rdev->ops->get_channel) {
2291 struct cfg80211_chan_def chandef;
2293 ret = rdev_get_channel(rdev, wdev, &chandef);
2295 if (nl80211_send_chandef(msg, &chandef))
2296 goto nla_put_failure;
2300 if (wdev->ssid_len) {
2301 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2302 goto nla_put_failure;
2305 return genlmsg_end(msg, hdr);
2308 genlmsg_cancel(msg, hdr);
2312 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2316 int wp_start = cb->args[0];
2317 int if_start = cb->args[1];
2318 struct cfg80211_registered_device *rdev;
2319 struct wireless_dev *wdev;
2322 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2323 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2325 if (wp_idx < wp_start) {
2331 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2332 if (if_idx < if_start) {
2336 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2337 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2349 cb->args[0] = wp_idx;
2350 cb->args[1] = if_idx;
2355 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2357 struct sk_buff *msg;
2358 struct cfg80211_registered_device *dev = info->user_ptr[0];
2359 struct wireless_dev *wdev = info->user_ptr[1];
2361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2365 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2371 return genlmsg_reply(msg, info);
2374 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2375 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2376 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2377 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2378 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2379 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2380 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2383 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2385 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2393 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2394 nla, mntr_flags_policy))
2397 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2399 *mntrflags |= (1<<flag);
2404 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2405 struct net_device *netdev, u8 use_4addr,
2406 enum nl80211_iftype iftype)
2409 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2415 case NL80211_IFTYPE_AP_VLAN:
2416 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2419 case NL80211_IFTYPE_STATION:
2420 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2430 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2433 struct vif_params params;
2435 enum nl80211_iftype otype, ntype;
2436 struct net_device *dev = info->user_ptr[1];
2437 u32 _flags, *flags = NULL;
2438 bool change = false;
2440 memset(¶ms, 0, sizeof(params));
2442 otype = ntype = dev->ieee80211_ptr->iftype;
2444 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2445 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2448 if (ntype > NL80211_IFTYPE_MAX)
2452 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2453 struct wireless_dev *wdev = dev->ieee80211_ptr;
2455 if (ntype != NL80211_IFTYPE_MESH_POINT)
2457 if (netif_running(dev))
2461 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2462 IEEE80211_MAX_MESH_ID_LEN);
2463 wdev->mesh_id_up_len =
2464 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2465 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2466 wdev->mesh_id_up_len);
2470 if (info->attrs[NL80211_ATTR_4ADDR]) {
2471 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2473 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2477 params.use_4addr = -1;
2480 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2481 if (ntype != NL80211_IFTYPE_MONITOR)
2483 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2492 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2493 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2497 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2501 if (!err && params.use_4addr != -1)
2502 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2507 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2510 struct vif_params params;
2511 struct wireless_dev *wdev;
2512 struct sk_buff *msg;
2514 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2517 memset(¶ms, 0, sizeof(params));
2519 if (!info->attrs[NL80211_ATTR_IFNAME])
2522 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2523 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2524 if (type > NL80211_IFTYPE_MAX)
2528 if (!rdev->ops->add_virtual_intf ||
2529 !(rdev->wiphy.interface_modes & (1 << type)))
2532 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2533 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2535 if (!is_valid_ether_addr(params.macaddr))
2536 return -EADDRNOTAVAIL;
2539 if (info->attrs[NL80211_ATTR_4ADDR]) {
2540 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2541 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2550 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2551 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2554 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2555 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2558 wdev = rdev_add_virtual_intf(rdev,
2559 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2560 type, err ? NULL : &flags, ¶ms);
2563 return PTR_ERR(wdev);
2567 case NL80211_IFTYPE_MESH_POINT:
2568 if (!info->attrs[NL80211_ATTR_MESH_ID])
2571 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2572 IEEE80211_MAX_MESH_ID_LEN);
2573 wdev->mesh_id_up_len =
2574 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2575 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2576 wdev->mesh_id_up_len);
2579 case NL80211_IFTYPE_P2P_DEVICE:
2581 * P2P Device doesn't have a netdev, so doesn't go
2582 * through the netdev notifier and must be added here
2584 mutex_init(&wdev->mtx);
2585 INIT_LIST_HEAD(&wdev->event_list);
2586 spin_lock_init(&wdev->event_lock);
2587 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2588 spin_lock_init(&wdev->mgmt_registrations_lock);
2590 wdev->identifier = ++rdev->wdev_id;
2591 list_add_rcu(&wdev->list, &rdev->wdev_list);
2592 rdev->devlist_generation++;
2598 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2604 return genlmsg_reply(msg, info);
2607 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2609 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2610 struct wireless_dev *wdev = info->user_ptr[1];
2612 if (!rdev->ops->del_virtual_intf)
2616 * If we remove a wireless device without a netdev then clear
2617 * user_ptr[1] so that nl80211_post_doit won't dereference it
2618 * to check if it needs to do dev_put(). Otherwise it crashes
2619 * since the wdev has been freed, unlike with a netdev where
2620 * we need the dev_put() for the netdev to really be freed.
2623 info->user_ptr[1] = NULL;
2625 return rdev_del_virtual_intf(rdev, wdev);
2628 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2630 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2631 struct net_device *dev = info->user_ptr[1];
2634 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2637 if (!rdev->ops->set_noack_map)
2640 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2642 return rdev_set_noack_map(rdev, dev, noack_map);
2645 struct get_key_cookie {
2646 struct sk_buff *msg;
2651 static void get_key_callback(void *c, struct key_params *params)
2654 struct get_key_cookie *cookie = c;
2657 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2658 params->key_len, params->key)) ||
2660 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2661 params->seq_len, params->seq)) ||
2663 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2665 goto nla_put_failure;
2667 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2669 goto nla_put_failure;
2672 nla_put(cookie->msg, NL80211_KEY_DATA,
2673 params->key_len, params->key)) ||
2675 nla_put(cookie->msg, NL80211_KEY_SEQ,
2676 params->seq_len, params->seq)) ||
2678 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2680 goto nla_put_failure;
2682 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2683 goto nla_put_failure;
2685 nla_nest_end(cookie->msg, key);
2692 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2694 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2696 struct net_device *dev = info->user_ptr[1];
2698 const u8 *mac_addr = NULL;
2700 struct get_key_cookie cookie = {
2704 struct sk_buff *msg;
2706 if (info->attrs[NL80211_ATTR_KEY_IDX])
2707 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2712 if (info->attrs[NL80211_ATTR_MAC])
2713 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2715 pairwise = !!mac_addr;
2716 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2717 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2718 if (kt >= NUM_NL80211_KEYTYPES)
2720 if (kt != NL80211_KEYTYPE_GROUP &&
2721 kt != NL80211_KEYTYPE_PAIRWISE)
2723 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2726 if (!rdev->ops->get_key)
2729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2733 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2734 NL80211_CMD_NEW_KEY);
2736 goto nla_put_failure;
2739 cookie.idx = key_idx;
2741 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2742 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2743 goto nla_put_failure;
2745 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2746 goto nla_put_failure;
2748 if (pairwise && mac_addr &&
2749 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2752 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2759 goto nla_put_failure;
2761 genlmsg_end(msg, hdr);
2762 return genlmsg_reply(msg, info);
2771 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2774 struct key_parse key;
2776 struct net_device *dev = info->user_ptr[1];
2778 err = nl80211_parse_key(info, &key);
2785 /* only support setting default key */
2786 if (!key.def && !key.defmgmt)
2789 wdev_lock(dev->ieee80211_ptr);
2792 if (!rdev->ops->set_default_key) {
2797 err = nl80211_key_allowed(dev->ieee80211_ptr);
2801 err = rdev_set_default_key(rdev, dev, key.idx,
2802 key.def_uni, key.def_multi);
2807 #ifdef CONFIG_CFG80211_WEXT
2808 dev->ieee80211_ptr->wext.default_key = key.idx;
2811 if (key.def_uni || !key.def_multi) {
2816 if (!rdev->ops->set_default_mgmt_key) {
2821 err = nl80211_key_allowed(dev->ieee80211_ptr);
2825 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2829 #ifdef CONFIG_CFG80211_WEXT
2830 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2835 wdev_unlock(dev->ieee80211_ptr);
2840 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2842 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2844 struct net_device *dev = info->user_ptr[1];
2845 struct key_parse key;
2846 const u8 *mac_addr = NULL;
2848 err = nl80211_parse_key(info, &key);
2855 if (info->attrs[NL80211_ATTR_MAC])
2856 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2858 if (key.type == -1) {
2860 key.type = NL80211_KEYTYPE_PAIRWISE;
2862 key.type = NL80211_KEYTYPE_GROUP;
2866 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2867 key.type != NL80211_KEYTYPE_GROUP)
2870 if (!rdev->ops->add_key)
2873 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2874 key.type == NL80211_KEYTYPE_PAIRWISE,
2878 wdev_lock(dev->ieee80211_ptr);
2879 err = nl80211_key_allowed(dev->ieee80211_ptr);
2881 err = rdev_add_key(rdev, dev, key.idx,
2882 key.type == NL80211_KEYTYPE_PAIRWISE,
2884 wdev_unlock(dev->ieee80211_ptr);
2889 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2891 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2893 struct net_device *dev = info->user_ptr[1];
2894 u8 *mac_addr = NULL;
2895 struct key_parse key;
2897 err = nl80211_parse_key(info, &key);
2901 if (info->attrs[NL80211_ATTR_MAC])
2902 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2904 if (key.type == -1) {
2906 key.type = NL80211_KEYTYPE_PAIRWISE;
2908 key.type = NL80211_KEYTYPE_GROUP;
2912 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2913 key.type != NL80211_KEYTYPE_GROUP)
2916 if (!rdev->ops->del_key)
2919 wdev_lock(dev->ieee80211_ptr);
2920 err = nl80211_key_allowed(dev->ieee80211_ptr);
2922 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2923 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2927 err = rdev_del_key(rdev, dev, key.idx,
2928 key.type == NL80211_KEYTYPE_PAIRWISE,
2931 #ifdef CONFIG_CFG80211_WEXT
2933 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2934 dev->ieee80211_ptr->wext.default_key = -1;
2935 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2936 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2939 wdev_unlock(dev->ieee80211_ptr);
2944 /* This function returns an error or the number of nested attributes */
2945 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2947 struct nlattr *attr;
2948 int n_entries = 0, tmp;
2950 nla_for_each_nested(attr, nl_attr, tmp) {
2951 if (nla_len(attr) != ETH_ALEN)
2961 * This function parses ACL information and allocates memory for ACL data.
2962 * On successful return, the calling function is responsible to free the
2963 * ACL buffer returned by this function.
2965 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2966 struct genl_info *info)
2968 enum nl80211_acl_policy acl_policy;
2969 struct nlattr *attr;
2970 struct cfg80211_acl_data *acl;
2971 int i = 0, n_entries, tmp;
2973 if (!wiphy->max_acl_mac_addrs)
2974 return ERR_PTR(-EOPNOTSUPP);
2976 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2977 return ERR_PTR(-EINVAL);
2979 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2980 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2981 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2982 return ERR_PTR(-EINVAL);
2984 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2985 return ERR_PTR(-EINVAL);
2987 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2989 return ERR_PTR(n_entries);
2991 if (n_entries > wiphy->max_acl_mac_addrs)
2992 return ERR_PTR(-ENOTSUPP);
2994 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2997 return ERR_PTR(-ENOMEM);
2999 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3000 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3004 acl->n_acl_entries = n_entries;
3005 acl->acl_policy = acl_policy;
3010 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3012 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3013 struct net_device *dev = info->user_ptr[1];
3014 struct cfg80211_acl_data *acl;
3017 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3018 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3021 if (!dev->ieee80211_ptr->beacon_interval)
3024 acl = parse_acl_data(&rdev->wiphy, info);
3026 return PTR_ERR(acl);
3028 err = rdev_set_mac_acl(rdev, dev, acl);
3035 static int nl80211_parse_beacon(struct nlattr *attrs[],
3036 struct cfg80211_beacon_data *bcn)
3038 bool haveinfo = false;
3040 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3041 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3042 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3043 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3046 memset(bcn, 0, sizeof(*bcn));
3048 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3049 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3050 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3056 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3057 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3058 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3065 if (attrs[NL80211_ATTR_IE]) {
3066 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3067 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3070 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3071 bcn->proberesp_ies =
3072 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3073 bcn->proberesp_ies_len =
3074 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3077 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3078 bcn->assocresp_ies =
3079 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3080 bcn->assocresp_ies_len =
3081 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3084 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3085 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3086 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3092 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3093 struct cfg80211_ap_settings *params)
3095 struct wireless_dev *wdev;
3098 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3099 if (wdev->iftype != NL80211_IFTYPE_AP &&
3100 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3103 if (!wdev->preset_chandef.chan)
3106 params->chandef = wdev->preset_chandef;
3114 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3115 enum nl80211_auth_type auth_type,
3116 enum nl80211_commands cmd)
3118 if (auth_type > NL80211_AUTHTYPE_MAX)
3122 case NL80211_CMD_AUTHENTICATE:
3123 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3124 auth_type == NL80211_AUTHTYPE_SAE)
3127 case NL80211_CMD_CONNECT:
3128 case NL80211_CMD_START_AP:
3129 /* SAE not supported yet */
3130 if (auth_type == NL80211_AUTHTYPE_SAE)
3138 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3141 struct net_device *dev = info->user_ptr[1];
3142 struct wireless_dev *wdev = dev->ieee80211_ptr;
3143 struct cfg80211_ap_settings params;
3145 u8 radar_detect_width = 0;
3147 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3148 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3151 if (!rdev->ops->start_ap)
3154 if (wdev->beacon_interval)
3157 memset(¶ms, 0, sizeof(params));
3159 /* these are required for START_AP */
3160 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3161 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3162 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3165 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3169 params.beacon_interval =
3170 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3171 params.dtim_period =
3172 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3174 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3179 * In theory, some of these attributes should be required here
3180 * but since they were not used when the command was originally
3181 * added, keep them optional for old user space programs to let
3182 * them continue to work with drivers that do not need the
3183 * additional information -- drivers must check!
3185 if (info->attrs[NL80211_ATTR_SSID]) {
3186 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3188 nla_len(info->attrs[NL80211_ATTR_SSID]);
3189 if (params.ssid_len == 0 ||
3190 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3194 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3195 params.hidden_ssid = nla_get_u32(
3196 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3197 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3198 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3199 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3203 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3205 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3206 params.auth_type = nla_get_u32(
3207 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3208 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3209 NL80211_CMD_START_AP))
3212 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3214 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3215 NL80211_MAX_NR_CIPHER_SUITES);
3219 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3220 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3222 params.inactivity_timeout = nla_get_u16(
3223 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3226 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3227 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3229 params.p2p_ctwindow =
3230 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3231 if (params.p2p_ctwindow > 127)
3233 if (params.p2p_ctwindow != 0 &&
3234 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3238 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3241 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3243 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3246 params.p2p_opp_ps = tmp;
3247 if (params.p2p_opp_ps != 0 &&
3248 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3252 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3253 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3256 } else if (wdev->preset_chandef.chan) {
3257 params.chandef = wdev->preset_chandef;
3258 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3261 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3264 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3268 radar_detect_width = BIT(params.chandef.width);
3269 params.radar_required = true;
3272 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3273 params.chandef.chan,
3275 radar_detect_width);
3279 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3280 params.acl = parse_acl_data(&rdev->wiphy, info);
3281 if (IS_ERR(params.acl))
3282 return PTR_ERR(params.acl);
3286 err = rdev_start_ap(rdev, dev, ¶ms);
3288 wdev->preset_chandef = params.chandef;
3289 wdev->beacon_interval = params.beacon_interval;
3290 wdev->chandef = params.chandef;
3291 wdev->ssid_len = params.ssid_len;
3292 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3301 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3304 struct net_device *dev = info->user_ptr[1];
3305 struct wireless_dev *wdev = dev->ieee80211_ptr;
3306 struct cfg80211_beacon_data params;
3309 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3310 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3313 if (!rdev->ops->change_beacon)
3316 if (!wdev->beacon_interval)
3319 err = nl80211_parse_beacon(info->attrs, ¶ms);
3324 err = rdev_change_beacon(rdev, dev, ¶ms);
3330 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3332 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3333 struct net_device *dev = info->user_ptr[1];
3335 return cfg80211_stop_ap(rdev, dev, false);
3338 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3339 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3340 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3341 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3342 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3343 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3344 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3347 static int parse_station_flags(struct genl_info *info,
3348 enum nl80211_iftype iftype,
3349 struct station_parameters *params)
3351 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3356 * Try parsing the new attribute first so userspace
3357 * can specify both for older kernels.
3359 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3361 struct nl80211_sta_flag_update *sta_flags;
3363 sta_flags = nla_data(nla);
3364 params->sta_flags_mask = sta_flags->mask;
3365 params->sta_flags_set = sta_flags->set;
3366 params->sta_flags_set &= params->sta_flags_mask;
3367 if ((params->sta_flags_mask |
3368 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3373 /* if present, parse the old attribute */
3375 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3379 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3380 nla, sta_flags_policy))
3384 * Only allow certain flags for interface types so that
3385 * other attributes are silently ignored. Remember that
3386 * this is backward compatibility code with old userspace
3387 * and shouldn't be hit in other cases anyway.
3390 case NL80211_IFTYPE_AP:
3391 case NL80211_IFTYPE_AP_VLAN:
3392 case NL80211_IFTYPE_P2P_GO:
3393 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3394 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3395 BIT(NL80211_STA_FLAG_WME) |
3396 BIT(NL80211_STA_FLAG_MFP);
3398 case NL80211_IFTYPE_P2P_CLIENT:
3399 case NL80211_IFTYPE_STATION:
3400 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3401 BIT(NL80211_STA_FLAG_TDLS_PEER);
3403 case NL80211_IFTYPE_MESH_POINT:
3404 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3405 BIT(NL80211_STA_FLAG_MFP) |
3406 BIT(NL80211_STA_FLAG_AUTHORIZED);
3411 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3413 params->sta_flags_set |= (1<<flag);
3415 /* no longer support new API additions in old API */
3416 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3424 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3427 struct nlattr *rate;
3431 rate = nla_nest_start(msg, attr);
3435 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3436 bitrate = cfg80211_calculate_bitrate(info);
3437 /* report 16-bit bitrate only if we can */
3438 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3440 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3442 if (bitrate_compat > 0 &&
3443 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3446 if (info->flags & RATE_INFO_FLAGS_MCS) {
3447 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3449 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3450 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3452 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3453 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3455 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3456 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3458 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3460 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3461 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3463 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3464 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3466 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3467 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3469 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3470 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3472 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3473 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3477 nla_nest_end(msg, rate);
3481 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3490 attr = nla_nest_start(msg, id);
3494 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3495 if (!(mask & BIT(i)))
3498 if (nla_put_u8(msg, i, signal[i]))
3502 nla_nest_end(msg, attr);
3507 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3509 struct cfg80211_registered_device *rdev,
3510 struct net_device *dev,
3511 const u8 *mac_addr, struct station_info *sinfo)
3514 struct nlattr *sinfoattr, *bss_param;
3516 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3520 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3521 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3522 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3523 goto nla_put_failure;
3525 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3527 goto nla_put_failure;
3528 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3529 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3530 sinfo->connected_time))
3531 goto nla_put_failure;
3532 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3533 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3534 sinfo->inactive_time))
3535 goto nla_put_failure;
3536 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3537 STATION_INFO_RX_BYTES64)) &&
3538 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3539 (u32)sinfo->rx_bytes))
3540 goto nla_put_failure;
3541 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3542 STATION_INFO_TX_BYTES64)) &&
3543 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3544 (u32)sinfo->tx_bytes))
3545 goto nla_put_failure;
3546 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3547 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3549 goto nla_put_failure;
3550 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3551 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3553 goto nla_put_failure;
3554 if ((sinfo->filled & STATION_INFO_LLID) &&
3555 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3556 goto nla_put_failure;
3557 if ((sinfo->filled & STATION_INFO_PLID) &&
3558 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3559 goto nla_put_failure;
3560 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3561 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3562 sinfo->plink_state))
3563 goto nla_put_failure;
3564 switch (rdev->wiphy.signal_type) {
3565 case CFG80211_SIGNAL_TYPE_MBM:
3566 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3567 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3569 goto nla_put_failure;
3570 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3571 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3573 goto nla_put_failure;
3578 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3579 if (!nl80211_put_signal(msg, sinfo->chains,
3580 sinfo->chain_signal,
3581 NL80211_STA_INFO_CHAIN_SIGNAL))
3582 goto nla_put_failure;
3584 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3585 if (!nl80211_put_signal(msg, sinfo->chains,
3586 sinfo->chain_signal_avg,
3587 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3588 goto nla_put_failure;
3590 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3591 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3592 NL80211_STA_INFO_TX_BITRATE))
3593 goto nla_put_failure;
3595 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3596 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3597 NL80211_STA_INFO_RX_BITRATE))
3598 goto nla_put_failure;
3600 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3601 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3603 goto nla_put_failure;
3604 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3605 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3607 goto nla_put_failure;
3608 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3609 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3611 goto nla_put_failure;
3612 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3613 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3615 goto nla_put_failure;
3616 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3617 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3618 sinfo->beacon_loss_count))
3619 goto nla_put_failure;
3620 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3621 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3623 goto nla_put_failure;
3624 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3625 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3627 goto nla_put_failure;
3628 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3629 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3631 goto nla_put_failure;
3632 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3633 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3635 goto nla_put_failure;
3637 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3638 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3639 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3640 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3641 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3642 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3643 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3644 sinfo->bss_param.dtim_period) ||
3645 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3646 sinfo->bss_param.beacon_interval))
3647 goto nla_put_failure;
3649 nla_nest_end(msg, bss_param);
3651 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3652 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3653 sizeof(struct nl80211_sta_flag_update),
3655 goto nla_put_failure;
3656 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3657 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3659 goto nla_put_failure;
3660 nla_nest_end(msg, sinfoattr);
3662 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3663 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3664 sinfo->assoc_req_ies))
3665 goto nla_put_failure;
3667 return genlmsg_end(msg, hdr);
3670 genlmsg_cancel(msg, hdr);
3674 static int nl80211_dump_station(struct sk_buff *skb,
3675 struct netlink_callback *cb)
3677 struct station_info sinfo;
3678 struct cfg80211_registered_device *dev;
3679 struct wireless_dev *wdev;
3680 u8 mac_addr[ETH_ALEN];
3681 int sta_idx = cb->args[2];
3684 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3688 if (!wdev->netdev) {
3693 if (!dev->ops->dump_station) {
3699 memset(&sinfo, 0, sizeof(sinfo));
3700 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3707 if (nl80211_send_station(skb,
3708 NETLINK_CB(cb->skb).portid,
3709 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3710 dev, wdev->netdev, mac_addr,
3719 cb->args[2] = sta_idx;
3722 nl80211_finish_wdev_dump(dev);
3727 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3730 struct net_device *dev = info->user_ptr[1];
3731 struct station_info sinfo;
3732 struct sk_buff *msg;
3733 u8 *mac_addr = NULL;
3736 memset(&sinfo, 0, sizeof(sinfo));
3738 if (!info->attrs[NL80211_ATTR_MAC])
3741 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3743 if (!rdev->ops->get_station)
3746 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3750 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3754 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3755 rdev, dev, mac_addr, &sinfo) < 0) {
3760 return genlmsg_reply(msg, info);
3763 int cfg80211_check_station_change(struct wiphy *wiphy,
3764 struct station_parameters *params,
3765 enum cfg80211_station_type statype)
3767 if (params->listen_interval != -1)
3772 /* When you run into this, adjust the code below for the new flag */
3773 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3776 case CFG80211_STA_MESH_PEER_KERNEL:
3777 case CFG80211_STA_MESH_PEER_USER:
3779 * No ignoring the TDLS flag here -- the userspace mesh
3780 * code doesn't have the bug of including TDLS in the
3783 if (params->sta_flags_mask &
3784 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3785 BIT(NL80211_STA_FLAG_MFP) |
3786 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3789 case CFG80211_STA_TDLS_PEER_SETUP:
3790 case CFG80211_STA_TDLS_PEER_ACTIVE:
3791 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3793 /* ignore since it can't change */
3794 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3797 /* disallow mesh-specific things */
3798 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3800 if (params->local_pm)
3802 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3806 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3807 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3808 /* TDLS can't be set, ... */
3809 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3812 * ... but don't bother the driver with it. This works around
3813 * a hostapd/wpa_supplicant issue -- it always includes the
3814 * TLDS_PEER flag in the mask even for AP mode.
3816 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3819 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3820 /* reject other things that can't change */
3821 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3823 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3825 if (params->supported_rates)
3827 if (params->ext_capab || params->ht_capa || params->vht_capa)
3831 if (statype != CFG80211_STA_AP_CLIENT) {
3837 case CFG80211_STA_AP_MLME_CLIENT:
3838 /* Use this only for authorizing/unauthorizing a station */
3839 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3842 case CFG80211_STA_AP_CLIENT:
3843 /* accept only the listed bits */
3844 if (params->sta_flags_mask &
3845 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3846 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3847 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3848 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3849 BIT(NL80211_STA_FLAG_WME) |
3850 BIT(NL80211_STA_FLAG_MFP)))
3853 /* but authenticated/associated only if driver handles it */
3854 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3855 params->sta_flags_mask &
3856 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3857 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3860 case CFG80211_STA_IBSS:
3861 case CFG80211_STA_AP_STA:
3862 /* reject any changes other than AUTHORIZED */
3863 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3866 case CFG80211_STA_TDLS_PEER_SETUP:
3867 /* reject any changes other than AUTHORIZED or WME */
3868 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3869 BIT(NL80211_STA_FLAG_WME)))
3871 /* force (at least) rates when authorizing */
3872 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3873 !params->supported_rates)
3876 case CFG80211_STA_TDLS_PEER_ACTIVE:
3877 /* reject any changes */
3879 case CFG80211_STA_MESH_PEER_KERNEL:
3880 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3883 case CFG80211_STA_MESH_PEER_USER:
3884 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3891 EXPORT_SYMBOL(cfg80211_check_station_change);
3894 * Get vlan interface making sure it is running and on the right wiphy.
3896 static struct net_device *get_vlan(struct genl_info *info,
3897 struct cfg80211_registered_device *rdev)
3899 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3900 struct net_device *v;
3906 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3908 return ERR_PTR(-ENODEV);
3910 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3915 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3916 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3917 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3922 if (!netif_running(v)) {
3930 return ERR_PTR(ret);
3933 static const struct nla_policy
3934 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
3935 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3936 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3939 static int nl80211_parse_sta_wme(struct genl_info *info,
3940 struct station_parameters *params)
3942 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3946 /* parse WME attributes if present */
3947 if (!info->attrs[NL80211_ATTR_STA_WME])
3950 nla = info->attrs[NL80211_ATTR_STA_WME];
3951 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3952 nl80211_sta_wme_policy);
3956 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3957 params->uapsd_queues = nla_get_u8(
3958 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3959 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3962 if (tb[NL80211_STA_WME_MAX_SP])
3963 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3965 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3968 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3973 static int nl80211_parse_sta_channel_info(struct genl_info *info,
3974 struct station_parameters *params)
3976 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3977 params->supported_channels =
3978 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3979 params->supported_channels_len =
3980 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3982 * Need to include at least one (first channel, number of
3983 * channels) tuple for each subband, and must have proper
3984 * tuples for the rest of the data as well.
3986 if (params->supported_channels_len < 2)
3988 if (params->supported_channels_len % 2)
3992 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3993 params->supported_oper_classes =
3994 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3995 params->supported_oper_classes_len =
3996 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3998 * The value of the Length field of the Supported Operating
3999 * Classes element is between 2 and 253.
4001 if (params->supported_oper_classes_len < 2 ||
4002 params->supported_oper_classes_len > 253)
4008 static int nl80211_set_station_tdls(struct genl_info *info,
4009 struct station_parameters *params)
4012 /* Dummy STA entry gets updated once the peer capabilities are known */
4013 if (info->attrs[NL80211_ATTR_PEER_AID])
4014 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4015 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4017 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4018 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4020 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4022 err = nl80211_parse_sta_channel_info(info, params);
4026 return nl80211_parse_sta_wme(info, params);
4029 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4032 struct net_device *dev = info->user_ptr[1];
4033 struct station_parameters params;
4037 memset(¶ms, 0, sizeof(params));
4039 params.listen_interval = -1;
4041 if (!rdev->ops->change_station)
4044 if (info->attrs[NL80211_ATTR_STA_AID])
4047 if (!info->attrs[NL80211_ATTR_MAC])
4050 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4052 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4053 params.supported_rates =
4054 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4055 params.supported_rates_len =
4056 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4059 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4061 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4062 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4065 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4067 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4068 params.ext_capab_len =
4069 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4072 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4075 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4078 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4079 params.plink_action =
4080 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4081 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4085 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4086 params.plink_state =
4087 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4088 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4090 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4093 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4094 enum nl80211_mesh_power_mode pm = nla_get_u32(
4095 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4097 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4098 pm > NL80211_MESH_POWER_MAX)
4101 params.local_pm = pm;
4104 /* Include parameters for TDLS peer (will check later) */
4105 err = nl80211_set_station_tdls(info, ¶ms);
4109 params.vlan = get_vlan(info, rdev);
4110 if (IS_ERR(params.vlan))
4111 return PTR_ERR(params.vlan);
4113 switch (dev->ieee80211_ptr->iftype) {
4114 case NL80211_IFTYPE_AP:
4115 case NL80211_IFTYPE_AP_VLAN:
4116 case NL80211_IFTYPE_P2P_GO:
4117 case NL80211_IFTYPE_P2P_CLIENT:
4118 case NL80211_IFTYPE_STATION:
4119 case NL80211_IFTYPE_ADHOC:
4120 case NL80211_IFTYPE_MESH_POINT:
4127 /* driver will call cfg80211_check_station_change() */
4128 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4132 dev_put(params.vlan);
4137 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4141 struct net_device *dev = info->user_ptr[1];
4142 struct station_parameters params;
4143 u8 *mac_addr = NULL;
4145 memset(¶ms, 0, sizeof(params));
4147 if (!rdev->ops->add_station)
4150 if (!info->attrs[NL80211_ATTR_MAC])
4153 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4156 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4159 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4160 !info->attrs[NL80211_ATTR_PEER_AID])
4163 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4164 params.supported_rates =
4165 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4166 params.supported_rates_len =
4167 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4168 params.listen_interval =
4169 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4171 if (info->attrs[NL80211_ATTR_PEER_AID])
4172 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4174 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4175 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4178 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4180 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4181 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4184 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4186 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4187 params.ext_capab_len =
4188 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4191 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4193 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4195 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4197 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4199 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4200 params.opmode_notif_used = true;
4201 params.opmode_notif =
4202 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4205 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4206 params.plink_action =
4207 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4208 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4212 err = nl80211_parse_sta_channel_info(info, ¶ms);
4216 err = nl80211_parse_sta_wme(info, ¶ms);
4220 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4223 /* When you run into this, adjust the code below for the new flag */
4224 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4226 switch (dev->ieee80211_ptr->iftype) {
4227 case NL80211_IFTYPE_AP:
4228 case NL80211_IFTYPE_AP_VLAN:
4229 case NL80211_IFTYPE_P2P_GO:
4230 /* ignore WME attributes if iface/sta is not capable */
4231 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4232 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4233 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4235 /* TDLS peers cannot be added */
4236 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4237 info->attrs[NL80211_ATTR_PEER_AID])
4239 /* but don't bother the driver with it */
4240 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4242 /* allow authenticated/associated only if driver handles it */
4243 if (!(rdev->wiphy.features &
4244 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4245 params.sta_flags_mask &
4246 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4247 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4250 /* must be last in here for error handling */
4251 params.vlan = get_vlan(info, rdev);
4252 if (IS_ERR(params.vlan))
4253 return PTR_ERR(params.vlan);
4255 case NL80211_IFTYPE_MESH_POINT:
4256 /* ignore uAPSD data */
4257 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4259 /* associated is disallowed */
4260 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4262 /* TDLS peers cannot be added */
4263 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4264 info->attrs[NL80211_ATTR_PEER_AID])
4267 case NL80211_IFTYPE_STATION:
4268 case NL80211_IFTYPE_P2P_CLIENT:
4269 /* ignore uAPSD data */
4270 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4272 /* these are disallowed */
4273 if (params.sta_flags_mask &
4274 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4275 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4277 /* Only TDLS peers can be added */
4278 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4280 /* Can only add if TDLS ... */
4281 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4283 /* ... with external setup is supported */
4284 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4287 * Older wpa_supplicant versions always mark the TDLS peer
4288 * as authorized, but it shouldn't yet be.
4290 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4296 /* be aware of params.vlan when changing code here */
4298 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4301 dev_put(params.vlan);
4305 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4308 struct net_device *dev = info->user_ptr[1];
4309 u8 *mac_addr = NULL;
4311 if (info->attrs[NL80211_ATTR_MAC])
4312 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4314 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4315 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4316 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4317 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4320 if (!rdev->ops->del_station)
4323 return rdev_del_station(rdev, dev, mac_addr);
4326 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4327 int flags, struct net_device *dev,
4328 u8 *dst, u8 *next_hop,
4329 struct mpath_info *pinfo)
4332 struct nlattr *pinfoattr;
4334 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4338 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4339 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4340 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4341 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4342 goto nla_put_failure;
4344 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4346 goto nla_put_failure;
4347 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4348 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4350 goto nla_put_failure;
4351 if (((pinfo->filled & MPATH_INFO_SN) &&
4352 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4353 ((pinfo->filled & MPATH_INFO_METRIC) &&
4354 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4356 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4357 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4359 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4360 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4362 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4363 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4364 pinfo->discovery_timeout)) ||
4365 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4366 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4367 pinfo->discovery_retries)))
4368 goto nla_put_failure;
4370 nla_nest_end(msg, pinfoattr);
4372 return genlmsg_end(msg, hdr);
4375 genlmsg_cancel(msg, hdr);
4379 static int nl80211_dump_mpath(struct sk_buff *skb,
4380 struct netlink_callback *cb)
4382 struct mpath_info pinfo;
4383 struct cfg80211_registered_device *dev;
4384 struct wireless_dev *wdev;
4386 u8 next_hop[ETH_ALEN];
4387 int path_idx = cb->args[2];
4390 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4394 if (!dev->ops->dump_mpath) {
4399 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4405 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4412 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4413 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4414 wdev->netdev, dst, next_hop,
4423 cb->args[2] = path_idx;
4426 nl80211_finish_wdev_dump(dev);
4430 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4432 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4434 struct net_device *dev = info->user_ptr[1];
4435 struct mpath_info pinfo;
4436 struct sk_buff *msg;
4438 u8 next_hop[ETH_ALEN];
4440 memset(&pinfo, 0, sizeof(pinfo));
4442 if (!info->attrs[NL80211_ATTR_MAC])
4445 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4447 if (!rdev->ops->get_mpath)
4450 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4453 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4461 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4462 dev, dst, next_hop, &pinfo) < 0) {
4467 return genlmsg_reply(msg, info);
4470 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4473 struct net_device *dev = info->user_ptr[1];
4475 u8 *next_hop = NULL;
4477 if (!info->attrs[NL80211_ATTR_MAC])
4480 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4483 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4484 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4486 if (!rdev->ops->change_mpath)
4489 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4492 return rdev_change_mpath(rdev, dev, dst, next_hop);
4495 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4498 struct net_device *dev = info->user_ptr[1];
4500 u8 *next_hop = NULL;
4502 if (!info->attrs[NL80211_ATTR_MAC])
4505 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4508 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4509 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4511 if (!rdev->ops->add_mpath)
4514 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4517 return rdev_add_mpath(rdev, dev, dst, next_hop);
4520 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4523 struct net_device *dev = info->user_ptr[1];
4526 if (info->attrs[NL80211_ATTR_MAC])
4527 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4529 if (!rdev->ops->del_mpath)
4532 return rdev_del_mpath(rdev, dev, dst);
4535 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4538 struct net_device *dev = info->user_ptr[1];
4539 struct wireless_dev *wdev = dev->ieee80211_ptr;
4540 struct bss_parameters params;
4543 memset(¶ms, 0, sizeof(params));
4544 /* default to not changing parameters */
4545 params.use_cts_prot = -1;
4546 params.use_short_preamble = -1;
4547 params.use_short_slot_time = -1;
4548 params.ap_isolate = -1;
4549 params.ht_opmode = -1;
4550 params.p2p_ctwindow = -1;
4551 params.p2p_opp_ps = -1;
4553 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4554 params.use_cts_prot =
4555 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4556 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4557 params.use_short_preamble =
4558 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4559 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4560 params.use_short_slot_time =
4561 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4562 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4563 params.basic_rates =
4564 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4565 params.basic_rates_len =
4566 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4568 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4569 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4570 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4572 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4574 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4577 params.p2p_ctwindow =
4578 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4579 if (params.p2p_ctwindow < 0)
4581 if (params.p2p_ctwindow != 0 &&
4582 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4586 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4589 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4591 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4594 params.p2p_opp_ps = tmp;
4595 if (params.p2p_opp_ps &&
4596 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4600 if (!rdev->ops->change_bss)
4603 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4604 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4608 err = rdev_change_bss(rdev, dev, ¶ms);
4614 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4615 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4616 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4617 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4618 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4619 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4620 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4621 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4624 static int parse_reg_rule(struct nlattr *tb[],
4625 struct ieee80211_reg_rule *reg_rule)
4627 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4628 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4630 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4632 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4634 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4636 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4638 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4641 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4643 freq_range->start_freq_khz =
4644 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4645 freq_range->end_freq_khz =
4646 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4647 freq_range->max_bandwidth_khz =
4648 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4650 power_rule->max_eirp =
4651 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4653 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4654 power_rule->max_antenna_gain =
4655 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4657 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4658 reg_rule->dfs_cac_ms =
4659 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4664 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4668 enum nl80211_user_reg_hint_type user_reg_hint_type;
4671 * You should only get this when cfg80211 hasn't yet initialized
4672 * completely when built-in to the kernel right between the time
4673 * window between nl80211_init() and regulatory_init(), if that is
4676 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4677 return -EINPROGRESS;
4679 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4682 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4684 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4685 user_reg_hint_type =
4686 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4688 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4690 switch (user_reg_hint_type) {
4691 case NL80211_USER_REG_HINT_USER:
4692 case NL80211_USER_REG_HINT_CELL_BASE:
4698 r = regulatory_hint_user(data, user_reg_hint_type);
4703 static int nl80211_get_mesh_config(struct sk_buff *skb,
4704 struct genl_info *info)
4706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4707 struct net_device *dev = info->user_ptr[1];
4708 struct wireless_dev *wdev = dev->ieee80211_ptr;
4709 struct mesh_config cur_params;
4712 struct nlattr *pinfoattr;
4713 struct sk_buff *msg;
4715 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4718 if (!rdev->ops->get_mesh_config)
4722 /* If not connected, get default parameters */
4723 if (!wdev->mesh_id_len)
4724 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4726 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4732 /* Draw up a netlink message to send back */
4733 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4736 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4737 NL80211_CMD_GET_MESH_CONFIG);
4740 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4742 goto nla_put_failure;
4743 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4744 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4745 cur_params.dot11MeshRetryTimeout) ||
4746 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4747 cur_params.dot11MeshConfirmTimeout) ||
4748 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4749 cur_params.dot11MeshHoldingTimeout) ||
4750 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4751 cur_params.dot11MeshMaxPeerLinks) ||
4752 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4753 cur_params.dot11MeshMaxRetries) ||
4754 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4755 cur_params.dot11MeshTTL) ||
4756 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4757 cur_params.element_ttl) ||
4758 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4759 cur_params.auto_open_plinks) ||
4760 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4761 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4762 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4763 cur_params.dot11MeshHWMPmaxPREQretries) ||
4764 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4765 cur_params.path_refresh_time) ||
4766 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4767 cur_params.min_discovery_timeout) ||
4768 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4769 cur_params.dot11MeshHWMPactivePathTimeout) ||
4770 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4771 cur_params.dot11MeshHWMPpreqMinInterval) ||
4772 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4773 cur_params.dot11MeshHWMPperrMinInterval) ||
4774 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4775 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4776 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4777 cur_params.dot11MeshHWMPRootMode) ||
4778 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4779 cur_params.dot11MeshHWMPRannInterval) ||
4780 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4781 cur_params.dot11MeshGateAnnouncementProtocol) ||
4782 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4783 cur_params.dot11MeshForwarding) ||
4784 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4785 cur_params.rssi_threshold) ||
4786 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4787 cur_params.ht_opmode) ||
4788 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4789 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4790 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4791 cur_params.dot11MeshHWMProotInterval) ||
4792 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4793 cur_params.dot11MeshHWMPconfirmationInterval) ||
4794 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4795 cur_params.power_mode) ||
4796 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4797 cur_params.dot11MeshAwakeWindowDuration) ||
4798 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4799 cur_params.plink_timeout))
4800 goto nla_put_failure;
4801 nla_nest_end(msg, pinfoattr);
4802 genlmsg_end(msg, hdr);
4803 return genlmsg_reply(msg, info);
4806 genlmsg_cancel(msg, hdr);
4812 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4813 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4814 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4815 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4816 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4817 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4818 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4819 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4820 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4821 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4822 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4823 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4824 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4825 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4826 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4827 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4828 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4829 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4830 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4831 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4832 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4833 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4834 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4835 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4836 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4837 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4838 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4839 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4840 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4843 static const struct nla_policy
4844 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4845 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4846 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4847 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4848 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4849 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4850 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4851 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4852 .len = IEEE80211_MAX_DATA_LEN },
4853 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4856 static int nl80211_parse_mesh_config(struct genl_info *info,
4857 struct mesh_config *cfg,
4860 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4863 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4866 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4868 cfg->param = fn(tb[attr]); \
4869 mask |= (1 << (attr - 1)); \
4874 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4876 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4877 info->attrs[NL80211_ATTR_MESH_CONFIG],
4878 nl80211_meshconf_params_policy))
4881 /* This makes sure that there aren't more than 32 mesh config
4882 * parameters (otherwise our bitfield scheme would not work.) */
4883 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4885 /* Fill in the params struct */
4886 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4887 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4889 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4890 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4893 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4895 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4896 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4899 mask, NL80211_MESHCONF_MAX_RETRIES,
4901 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4902 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4903 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4904 mask, NL80211_MESHCONF_ELEMENT_TTL,
4906 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4907 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4909 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4911 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4913 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4914 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4916 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4917 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4920 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4922 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4924 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4926 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4928 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4932 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4935 dot11MeshHWMPnetDiameterTraversalTime,
4937 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4940 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4942 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4943 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4945 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4946 dot11MeshGateAnnouncementProtocol, 0, 1,
4947 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4950 mask, NL80211_MESHCONF_FORWARDING,
4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
4953 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4955 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4956 mask, NL80211_MESHCONF_HT_OPMODE,
4958 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4960 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4962 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4963 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4966 dot11MeshHWMPconfirmationInterval,
4968 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4971 NL80211_MESH_POWER_ACTIVE,
4972 NL80211_MESH_POWER_MAX,
4973 mask, NL80211_MESHCONF_POWER_MODE,
4975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4977 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4979 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4986 #undef FILL_IN_MESH_PARAM_IF_SET
4989 static int nl80211_parse_mesh_setup(struct genl_info *info,
4990 struct mesh_setup *setup)
4992 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4993 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4995 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4997 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4998 info->attrs[NL80211_ATTR_MESH_SETUP],
4999 nl80211_mesh_setup_params_policy))
5002 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5003 setup->sync_method =
5004 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5005 IEEE80211_SYNC_METHOD_VENDOR :
5006 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5008 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5009 setup->path_sel_proto =
5010 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5011 IEEE80211_PATH_PROTOCOL_VENDOR :
5012 IEEE80211_PATH_PROTOCOL_HWMP;
5014 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5015 setup->path_metric =
5016 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5017 IEEE80211_PATH_METRIC_VENDOR :
5018 IEEE80211_PATH_METRIC_AIRTIME;
5021 if (tb[NL80211_MESH_SETUP_IE]) {
5022 struct nlattr *ieattr =
5023 tb[NL80211_MESH_SETUP_IE];
5024 if (!is_valid_ie_attr(ieattr))
5026 setup->ie = nla_data(ieattr);
5027 setup->ie_len = nla_len(ieattr);
5029 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5030 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5032 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5033 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5034 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5035 if (setup->is_secure)
5036 setup->user_mpm = true;
5038 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5039 if (!setup->user_mpm)
5042 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5048 static int nl80211_update_mesh_config(struct sk_buff *skb,
5049 struct genl_info *info)
5051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5052 struct net_device *dev = info->user_ptr[1];
5053 struct wireless_dev *wdev = dev->ieee80211_ptr;
5054 struct mesh_config cfg;
5058 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5061 if (!rdev->ops->update_mesh_config)
5064 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5069 if (!wdev->mesh_id_len)
5073 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5080 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5082 const struct ieee80211_regdomain *regdom;
5083 struct sk_buff *msg;
5085 struct nlattr *nl_reg_rules;
5088 if (!cfg80211_regdomain)
5091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5095 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5096 NL80211_CMD_GET_REG);
5100 if (reg_last_request_cell_base() &&
5101 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5102 NL80211_USER_REG_HINT_CELL_BASE))
5103 goto nla_put_failure;
5106 regdom = rcu_dereference(cfg80211_regdomain);
5108 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5109 (regdom->dfs_region &&
5110 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5111 goto nla_put_failure_rcu;
5113 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5115 goto nla_put_failure_rcu;
5117 for (i = 0; i < regdom->n_reg_rules; i++) {
5118 struct nlattr *nl_reg_rule;
5119 const struct ieee80211_reg_rule *reg_rule;
5120 const struct ieee80211_freq_range *freq_range;
5121 const struct ieee80211_power_rule *power_rule;
5122 unsigned int max_bandwidth_khz;
5124 reg_rule = ®dom->reg_rules[i];
5125 freq_range = ®_rule->freq_range;
5126 power_rule = ®_rule->power_rule;
5128 nl_reg_rule = nla_nest_start(msg, i);
5130 goto nla_put_failure_rcu;
5132 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5133 if (!max_bandwidth_khz)
5134 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5137 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5139 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5140 freq_range->start_freq_khz) ||
5141 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5142 freq_range->end_freq_khz) ||
5143 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5144 max_bandwidth_khz) ||
5145 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5146 power_rule->max_antenna_gain) ||
5147 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5148 power_rule->max_eirp) ||
5149 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5150 reg_rule->dfs_cac_ms))
5151 goto nla_put_failure_rcu;
5153 nla_nest_end(msg, nl_reg_rule);
5157 nla_nest_end(msg, nl_reg_rules);
5159 genlmsg_end(msg, hdr);
5160 return genlmsg_reply(msg, info);
5162 nla_put_failure_rcu:
5165 genlmsg_cancel(msg, hdr);
5171 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5173 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5174 struct nlattr *nl_reg_rule;
5175 char *alpha2 = NULL;
5176 int rem_reg_rules = 0, r = 0;
5177 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5178 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5179 struct ieee80211_regdomain *rd = NULL;
5181 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5184 if (!info->attrs[NL80211_ATTR_REG_RULES])
5187 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5189 if (info->attrs[NL80211_ATTR_DFS_REGION])
5190 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5192 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5195 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5199 if (!reg_is_valid_request(alpha2))
5202 size_of_regd = sizeof(struct ieee80211_regdomain) +
5203 num_rules * sizeof(struct ieee80211_reg_rule);
5205 rd = kzalloc(size_of_regd, GFP_KERNEL);
5209 rd->n_reg_rules = num_rules;
5210 rd->alpha2[0] = alpha2[0];
5211 rd->alpha2[1] = alpha2[1];
5214 * Disable DFS master mode if the DFS region was
5215 * not supported or known on this kernel.
5217 if (reg_supported_dfs_region(dfs_region))
5218 rd->dfs_region = dfs_region;
5220 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5222 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5223 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5227 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5233 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5240 /* set_regdom took ownership */
5248 static int validate_scan_freqs(struct nlattr *freqs)
5250 struct nlattr *attr1, *attr2;
5251 int n_channels = 0, tmp1, tmp2;
5253 nla_for_each_nested(attr1, freqs, tmp1) {
5256 * Some hardware has a limited channel list for
5257 * scanning, and it is pretty much nonsensical
5258 * to scan for a channel twice, so disallow that
5259 * and don't require drivers to check that the
5260 * channel list they get isn't longer than what
5261 * they can scan, as long as they can scan all
5262 * the channels they registered at once.
5264 nla_for_each_nested(attr2, freqs, tmp2)
5265 if (attr1 != attr2 &&
5266 nla_get_u32(attr1) == nla_get_u32(attr2))
5273 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5275 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5276 struct wireless_dev *wdev = info->user_ptr[1];
5277 struct cfg80211_scan_request *request;
5278 struct nlattr *attr;
5279 struct wiphy *wiphy;
5280 int err, tmp, n_ssids = 0, n_channels, i;
5283 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5286 wiphy = &rdev->wiphy;
5288 if (!rdev->ops->scan)
5291 if (rdev->scan_req || rdev->scan_msg) {
5296 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5297 n_channels = validate_scan_freqs(
5298 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5304 n_channels = ieee80211_get_num_supported_channels(wiphy);
5307 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5308 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5311 if (n_ssids > wiphy->max_scan_ssids) {
5316 if (info->attrs[NL80211_ATTR_IE])
5317 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5321 if (ie_len > wiphy->max_scan_ie_len) {
5326 request = kzalloc(sizeof(*request)
5327 + sizeof(*request->ssids) * n_ssids
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);
5346 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5347 /* user specified, bail out if channel not found */
5348 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5349 struct ieee80211_channel *chan;
5351 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5358 /* ignore disabled channels */
5359 if (chan->flags & IEEE80211_CHAN_DISABLED)
5362 request->channels[i] = chan;
5366 enum ieee80211_band band;
5369 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5371 if (!wiphy->bands[band])
5373 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5374 struct ieee80211_channel *chan;
5376 chan = &wiphy->bands[band]->channels[j];
5378 if (chan->flags & IEEE80211_CHAN_DISABLED)
5381 request->channels[i] = chan;
5392 request->n_channels = i;
5395 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5396 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5397 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5401 request->ssids[i].ssid_len = nla_len(attr);
5402 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5407 if (info->attrs[NL80211_ATTR_IE]) {
5408 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5409 memcpy((void *)request->ie,
5410 nla_data(info->attrs[NL80211_ATTR_IE]),
5414 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5415 if (wiphy->bands[i])
5417 (1 << wiphy->bands[i]->n_bitrates) - 1;
5419 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5420 nla_for_each_nested(attr,
5421 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5423 enum ieee80211_band band = nla_type(attr);
5425 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5430 if (!wiphy->bands[band])
5433 err = ieee80211_get_ratemask(wiphy->bands[band],
5436 &request->rates[band]);
5442 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5443 request->flags = nla_get_u32(
5444 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5445 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5446 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5453 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5455 request->wdev = wdev;
5456 request->wiphy = &rdev->wiphy;
5457 request->scan_start = jiffies;
5459 rdev->scan_req = request;
5460 err = rdev_scan(rdev, request);
5463 nl80211_send_scan_start(rdev, wdev);
5465 dev_hold(wdev->netdev);
5468 rdev->scan_req = NULL;
5476 static int nl80211_start_sched_scan(struct sk_buff *skb,
5477 struct genl_info *info)
5479 struct cfg80211_sched_scan_request *request;
5480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5481 struct net_device *dev = info->user_ptr[1];
5482 struct nlattr *attr;
5483 struct wiphy *wiphy;
5484 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5486 enum ieee80211_band band;
5488 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5489 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5491 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5492 !rdev->ops->sched_scan_start)
5495 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5498 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5501 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5505 wiphy = &rdev->wiphy;
5507 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5508 n_channels = validate_scan_freqs(
5509 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5513 n_channels = ieee80211_get_num_supported_channels(wiphy);
5516 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5517 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5521 if (n_ssids > wiphy->max_sched_scan_ssids)
5525 * First, count the number of 'real' matchsets. Due to an issue with
5526 * the old implementation, matchsets containing only the RSSI attribute
5527 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5528 * RSSI for all matchsets, rather than their own matchset for reporting
5529 * all APs with a strong RSSI. This is needed to be compatible with
5530 * older userspace that treated a matchset with only the RSSI as the
5531 * global RSSI for all other matchsets - if there are other matchsets.
5533 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5534 nla_for_each_nested(attr,
5535 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5537 struct nlattr *rssi;
5539 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5540 nla_data(attr), nla_len(attr),
5541 nl80211_match_policy);
5544 /* add other standalone attributes here */
5545 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5549 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5551 default_match_rssi = nla_get_s32(rssi);
5555 /* However, if there's no other matchset, add the RSSI one */
5556 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5559 if (n_match_sets > wiphy->max_match_sets)
5562 if (info->attrs[NL80211_ATTR_IE])
5563 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5567 if (ie_len > wiphy->max_sched_scan_ie_len)
5570 if (rdev->sched_scan_req) {
5575 request = kzalloc(sizeof(*request)
5576 + sizeof(*request->ssids) * n_ssids
5577 + sizeof(*request->match_sets) * n_match_sets
5578 + sizeof(*request->channels) * n_channels
5579 + ie_len, GFP_KERNEL);
5586 request->ssids = (void *)&request->channels[n_channels];
5587 request->n_ssids = n_ssids;
5590 request->ie = (void *)(request->ssids + n_ssids);
5592 request->ie = (void *)(request->channels + n_channels);
5597 request->match_sets = (void *)(request->ie + ie_len);
5598 else if (request->ssids)
5599 request->match_sets =
5600 (void *)(request->ssids + n_ssids);
5602 request->match_sets =
5603 (void *)(request->channels + n_channels);
5605 request->n_match_sets = n_match_sets;
5608 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5609 /* user specified, bail out if channel not found */
5610 nla_for_each_nested(attr,
5611 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5613 struct ieee80211_channel *chan;
5615 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5622 /* ignore disabled channels */
5623 if (chan->flags & IEEE80211_CHAN_DISABLED)
5626 request->channels[i] = chan;
5631 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5633 if (!wiphy->bands[band])
5635 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5636 struct ieee80211_channel *chan;
5638 chan = &wiphy->bands[band]->channels[j];
5640 if (chan->flags & IEEE80211_CHAN_DISABLED)
5643 request->channels[i] = chan;
5654 request->n_channels = i;
5657 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5658 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5660 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5664 request->ssids[i].ssid_len = nla_len(attr);
5665 memcpy(request->ssids[i].ssid, nla_data(attr),
5672 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5673 nla_for_each_nested(attr,
5674 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5676 struct nlattr *ssid, *rssi;
5678 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5679 nla_data(attr), nla_len(attr),
5680 nl80211_match_policy);
5683 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5685 if (WARN_ON(i >= n_match_sets)) {
5686 /* this indicates a programming error,
5687 * the loop above should have verified
5694 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5698 memcpy(request->match_sets[i].ssid.ssid,
5699 nla_data(ssid), nla_len(ssid));
5700 request->match_sets[i].ssid.ssid_len =
5702 /* special attribute - old implemenation w/a */
5703 request->match_sets[i].rssi_thold =
5705 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5707 request->match_sets[i].rssi_thold =
5713 /* there was no other matchset, so the RSSI one is alone */
5715 request->match_sets[0].rssi_thold = default_match_rssi;
5717 request->min_rssi_thold = INT_MAX;
5718 for (i = 0; i < n_match_sets; i++)
5719 request->min_rssi_thold =
5720 min(request->match_sets[i].rssi_thold,
5721 request->min_rssi_thold);
5723 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
5727 request->ie_len = ie_len;
5728 memcpy((void *)request->ie,
5729 nla_data(info->attrs[NL80211_ATTR_IE]),
5733 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5734 request->flags = nla_get_u32(
5735 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5736 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5737 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5744 request->wiphy = &rdev->wiphy;
5745 request->interval = interval;
5746 request->scan_start = jiffies;
5748 err = rdev_sched_scan_start(rdev, dev, request);
5750 rdev->sched_scan_req = request;
5751 nl80211_send_sched_scan(rdev, dev,
5752 NL80211_CMD_START_SCHED_SCAN);
5762 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5763 struct genl_info *info)
5765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5767 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5768 !rdev->ops->sched_scan_stop)
5771 return __cfg80211_stop_sched_scan(rdev, false);
5774 static int nl80211_start_radar_detection(struct sk_buff *skb,
5775 struct genl_info *info)
5777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5778 struct net_device *dev = info->user_ptr[1];
5779 struct wireless_dev *wdev = dev->ieee80211_ptr;
5780 struct cfg80211_chan_def chandef;
5781 enum nl80211_dfs_regions dfs_region;
5782 unsigned int cac_time_ms;
5785 dfs_region = reg_get_dfs_region(wdev->wiphy);
5786 if (dfs_region == NL80211_DFS_UNSET)
5789 err = nl80211_parse_chandef(rdev, info, &chandef);
5793 if (netif_carrier_ok(dev))
5796 if (wdev->cac_started)
5799 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5806 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5809 if (!rdev->ops->start_radar_detection)
5812 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5813 chandef.chan, CHAN_MODE_SHARED,
5814 BIT(chandef.width));
5818 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5819 if (WARN_ON(!cac_time_ms))
5820 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5822 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5825 wdev->chandef = chandef;
5826 wdev->cac_started = true;
5827 wdev->cac_start_time = jiffies;
5828 wdev->cac_time_ms = cac_time_ms;
5833 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5836 struct net_device *dev = info->user_ptr[1];
5837 struct wireless_dev *wdev = dev->ieee80211_ptr;
5838 struct cfg80211_csa_settings params;
5839 /* csa_attrs is defined static to avoid waste of stack size - this
5840 * function is called under RTNL lock, so this should not be a problem.
5842 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5843 u8 radar_detect_width = 0;
5845 bool need_new_beacon = false;
5847 if (!rdev->ops->channel_switch ||
5848 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5851 switch (dev->ieee80211_ptr->iftype) {
5852 case NL80211_IFTYPE_AP:
5853 case NL80211_IFTYPE_P2P_GO:
5854 need_new_beacon = true;
5856 /* useless if AP is not running */
5857 if (!wdev->beacon_interval)
5860 case NL80211_IFTYPE_ADHOC:
5861 if (!wdev->ssid_len)
5864 case NL80211_IFTYPE_MESH_POINT:
5865 if (!wdev->mesh_id_len)
5872 memset(¶ms, 0, sizeof(params));
5874 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5875 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5878 /* only important for AP, IBSS and mesh create IEs internally */
5879 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5882 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5884 if (!need_new_beacon)
5887 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5891 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5892 info->attrs[NL80211_ATTR_CSA_IES],
5897 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5901 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5904 params.counter_offset_beacon =
5905 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5906 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5909 /* sanity check - counters should be the same */
5910 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5914 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5915 params.counter_offset_presp =
5916 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5917 if (params.counter_offset_presp >=
5918 params.beacon_csa.probe_resp_len)
5921 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5927 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
5931 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
5934 switch (dev->ieee80211_ptr->iftype) {
5935 case NL80211_IFTYPE_AP:
5936 case NL80211_IFTYPE_P2P_GO:
5937 case NL80211_IFTYPE_ADHOC:
5938 case NL80211_IFTYPE_MESH_POINT:
5939 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5944 radar_detect_width = BIT(params.chandef.width);
5945 params.radar_required = true;
5952 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5953 params.chandef.chan,
5955 radar_detect_width);
5959 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5960 params.block_tx = true;
5963 err = rdev_channel_switch(rdev, dev, ¶ms);
5969 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5971 struct cfg80211_registered_device *rdev,
5972 struct wireless_dev *wdev,
5973 struct cfg80211_internal_bss *intbss)
5975 struct cfg80211_bss *res = &intbss->pub;
5976 const struct cfg80211_bss_ies *ies;
5981 ASSERT_WDEV_LOCK(wdev);
5983 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5984 NL80211_CMD_NEW_SCAN_RESULTS);
5988 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5990 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5991 goto nla_put_failure;
5993 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5994 goto nla_put_failure;
5995 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5996 goto nla_put_failure;
5998 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6000 goto nla_put_failure;
6001 if ((!is_zero_ether_addr(res->bssid) &&
6002 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6003 goto nla_put_failure;
6006 ies = rcu_dereference(res->ies);
6008 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6009 goto fail_unlock_rcu;
6011 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6012 ies->len, ies->data))
6013 goto fail_unlock_rcu;
6015 ies = rcu_dereference(res->beacon_ies);
6017 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6018 goto fail_unlock_rcu;
6019 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6020 ies->len, ies->data))
6021 goto fail_unlock_rcu;
6025 if (res->beacon_interval &&
6026 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6027 goto nla_put_failure;
6028 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6029 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6030 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6031 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6032 jiffies_to_msecs(jiffies - intbss->ts)))
6033 goto nla_put_failure;
6035 switch (rdev->wiphy.signal_type) {
6036 case CFG80211_SIGNAL_TYPE_MBM:
6037 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6038 goto nla_put_failure;
6040 case CFG80211_SIGNAL_TYPE_UNSPEC:
6041 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6042 goto nla_put_failure;
6048 switch (wdev->iftype) {
6049 case NL80211_IFTYPE_P2P_CLIENT:
6050 case NL80211_IFTYPE_STATION:
6051 if (intbss == wdev->current_bss &&
6052 nla_put_u32(msg, NL80211_BSS_STATUS,
6053 NL80211_BSS_STATUS_ASSOCIATED))
6054 goto nla_put_failure;
6056 case NL80211_IFTYPE_ADHOC:
6057 if (intbss == wdev->current_bss &&
6058 nla_put_u32(msg, NL80211_BSS_STATUS,
6059 NL80211_BSS_STATUS_IBSS_JOINED))
6060 goto nla_put_failure;
6066 nla_nest_end(msg, bss);
6068 return genlmsg_end(msg, hdr);
6073 genlmsg_cancel(msg, hdr);
6077 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6079 struct cfg80211_registered_device *rdev;
6080 struct cfg80211_internal_bss *scan;
6081 struct wireless_dev *wdev;
6082 int start = cb->args[2], idx = 0;
6085 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6090 spin_lock_bh(&rdev->bss_lock);
6091 cfg80211_bss_expire(rdev);
6093 cb->seq = rdev->bss_generation;
6095 list_for_each_entry(scan, &rdev->bss_list, list) {
6098 if (nl80211_send_bss(skb, cb,
6099 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6100 rdev, wdev, scan) < 0) {
6106 spin_unlock_bh(&rdev->bss_lock);
6110 nl80211_finish_wdev_dump(rdev);
6115 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6116 int flags, struct net_device *dev,
6117 struct survey_info *survey)
6120 struct nlattr *infoattr;
6122 hdr = nl80211hdr_put(msg, portid, seq, flags,
6123 NL80211_CMD_NEW_SURVEY_RESULTS);
6127 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6128 goto nla_put_failure;
6130 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6132 goto nla_put_failure;
6134 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6135 survey->channel->center_freq))
6136 goto nla_put_failure;
6138 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6139 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6140 goto nla_put_failure;
6141 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6142 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6143 goto nla_put_failure;
6144 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6145 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6146 survey->channel_time))
6147 goto nla_put_failure;
6148 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6149 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6150 survey->channel_time_busy))
6151 goto nla_put_failure;
6152 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6153 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6154 survey->channel_time_ext_busy))
6155 goto nla_put_failure;
6156 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6157 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6158 survey->channel_time_rx))
6159 goto nla_put_failure;
6160 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6161 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6162 survey->channel_time_tx))
6163 goto nla_put_failure;
6165 nla_nest_end(msg, infoattr);
6167 return genlmsg_end(msg, hdr);
6170 genlmsg_cancel(msg, hdr);
6174 static int nl80211_dump_survey(struct sk_buff *skb,
6175 struct netlink_callback *cb)
6177 struct survey_info survey;
6178 struct cfg80211_registered_device *dev;
6179 struct wireless_dev *wdev;
6180 int survey_idx = cb->args[2];
6183 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
6187 if (!wdev->netdev) {
6192 if (!dev->ops->dump_survey) {
6198 struct ieee80211_channel *chan;
6200 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
6206 /* Survey without a channel doesn't make sense */
6207 if (!survey.channel) {
6212 chan = ieee80211_get_channel(&dev->wiphy,
6213 survey.channel->center_freq);
6214 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6219 if (nl80211_send_survey(skb,
6220 NETLINK_CB(cb->skb).portid,
6221 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6222 wdev->netdev, &survey) < 0)
6228 cb->args[2] = survey_idx;
6231 nl80211_finish_wdev_dump(dev);
6235 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6237 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6238 NL80211_WPA_VERSION_2));
6241 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6244 struct net_device *dev = info->user_ptr[1];
6245 struct ieee80211_channel *chan;
6246 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6247 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6248 enum nl80211_auth_type auth_type;
6249 struct key_parse key;
6250 bool local_state_change;
6252 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6255 if (!info->attrs[NL80211_ATTR_MAC])
6258 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6261 if (!info->attrs[NL80211_ATTR_SSID])
6264 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6267 err = nl80211_parse_key(info, &key);
6272 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6274 if (!key.p.key || !key.p.key_len)
6276 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6277 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6278 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6279 key.p.key_len != WLAN_KEY_LEN_WEP104))
6291 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6292 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6301 if (!rdev->ops->auth)
6304 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6305 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6308 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6309 chan = nl80211_get_valid_chan(&rdev->wiphy,
6310 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6314 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6315 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6317 if (info->attrs[NL80211_ATTR_IE]) {
6318 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6319 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6322 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6323 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6326 if (auth_type == NL80211_AUTHTYPE_SAE &&
6327 !info->attrs[NL80211_ATTR_SAE_DATA])
6330 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6331 if (auth_type != NL80211_AUTHTYPE_SAE)
6333 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6334 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6335 /* need to include at least Auth Transaction and Status Code */
6336 if (sae_data_len < 4)
6340 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6343 * Since we no longer track auth state, ignore
6344 * requests to only change local state.
6346 if (local_state_change)
6349 wdev_lock(dev->ieee80211_ptr);
6350 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6351 ssid, ssid_len, ie, ie_len,
6352 key.p.key, key.p.key_len, key.idx,
6353 sae_data, sae_data_len);
6354 wdev_unlock(dev->ieee80211_ptr);
6358 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6359 struct genl_info *info,
6360 struct cfg80211_crypto_settings *settings,
6363 memset(settings, 0, sizeof(*settings));
6365 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6367 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6369 proto = nla_get_u16(
6370 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6371 settings->control_port_ethertype = cpu_to_be16(proto);
6372 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6375 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6376 settings->control_port_no_encrypt = true;
6378 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6380 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6384 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6385 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6386 settings->n_ciphers_pairwise = len / sizeof(u32);
6388 if (len % sizeof(u32))
6391 if (settings->n_ciphers_pairwise > cipher_limit)
6394 memcpy(settings->ciphers_pairwise, data, len);
6396 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6397 if (!cfg80211_supported_cipher_suite(
6399 settings->ciphers_pairwise[i]))
6403 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6404 settings->cipher_group =
6405 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6406 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6407 settings->cipher_group))
6411 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6412 settings->wpa_versions =
6413 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6414 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6418 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6422 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6423 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6424 settings->n_akm_suites = len / sizeof(u32);
6426 if (len % sizeof(u32))
6429 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6432 memcpy(settings->akm_suites, data, len);
6438 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6440 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6441 struct net_device *dev = info->user_ptr[1];
6442 struct ieee80211_channel *chan;
6443 struct cfg80211_assoc_request req = {};
6444 const u8 *bssid, *ssid;
6445 int err, ssid_len = 0;
6447 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6450 if (!info->attrs[NL80211_ATTR_MAC] ||
6451 !info->attrs[NL80211_ATTR_SSID] ||
6452 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6455 if (!rdev->ops->assoc)
6458 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6459 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6462 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6464 chan = nl80211_get_valid_chan(&rdev->wiphy,
6465 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6469 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6470 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6472 if (info->attrs[NL80211_ATTR_IE]) {
6473 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6474 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6477 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6478 enum nl80211_mfp mfp =
6479 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6480 if (mfp == NL80211_MFP_REQUIRED)
6482 else if (mfp != NL80211_MFP_NO)
6486 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6487 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6489 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6490 req.flags |= ASSOC_REQ_DISABLE_HT;
6492 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6493 memcpy(&req.ht_capa_mask,
6494 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6495 sizeof(req.ht_capa_mask));
6497 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6498 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6500 memcpy(&req.ht_capa,
6501 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6502 sizeof(req.ht_capa));
6505 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6506 req.flags |= ASSOC_REQ_DISABLE_VHT;
6508 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6509 memcpy(&req.vht_capa_mask,
6510 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6511 sizeof(req.vht_capa_mask));
6513 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6514 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6516 memcpy(&req.vht_capa,
6517 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6518 sizeof(req.vht_capa));
6521 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6523 wdev_lock(dev->ieee80211_ptr);
6524 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6525 ssid, ssid_len, &req);
6526 wdev_unlock(dev->ieee80211_ptr);
6532 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6535 struct net_device *dev = info->user_ptr[1];
6536 const u8 *ie = NULL, *bssid;
6537 int ie_len = 0, err;
6539 bool local_state_change;
6541 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6544 if (!info->attrs[NL80211_ATTR_MAC])
6547 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6550 if (!rdev->ops->deauth)
6553 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6554 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6557 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6559 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6560 if (reason_code == 0) {
6561 /* Reason Code 0 is reserved */
6565 if (info->attrs[NL80211_ATTR_IE]) {
6566 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6567 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6570 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6572 wdev_lock(dev->ieee80211_ptr);
6573 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6574 local_state_change);
6575 wdev_unlock(dev->ieee80211_ptr);
6579 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6581 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6582 struct net_device *dev = info->user_ptr[1];
6583 const u8 *ie = NULL, *bssid;
6584 int ie_len = 0, err;
6586 bool local_state_change;
6588 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6591 if (!info->attrs[NL80211_ATTR_MAC])
6594 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6597 if (!rdev->ops->disassoc)
6600 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6601 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6604 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6606 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6607 if (reason_code == 0) {
6608 /* Reason Code 0 is reserved */
6612 if (info->attrs[NL80211_ATTR_IE]) {
6613 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6614 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6617 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6619 wdev_lock(dev->ieee80211_ptr);
6620 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6621 local_state_change);
6622 wdev_unlock(dev->ieee80211_ptr);
6627 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6628 int mcast_rate[IEEE80211_NUM_BANDS],
6631 struct wiphy *wiphy = &rdev->wiphy;
6635 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6636 struct ieee80211_supported_band *sband;
6638 sband = wiphy->bands[band];
6642 for (i = 0; i < sband->n_bitrates; i++) {
6643 if (sband->bitrates[i].bitrate == rateval) {
6644 mcast_rate[band] = i + 1;
6654 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6657 struct net_device *dev = info->user_ptr[1];
6658 struct cfg80211_ibss_params ibss;
6659 struct wiphy *wiphy;
6660 struct cfg80211_cached_keys *connkeys = NULL;
6663 memset(&ibss, 0, sizeof(ibss));
6665 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6668 if (!info->attrs[NL80211_ATTR_SSID] ||
6669 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6672 ibss.beacon_interval = 100;
6674 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6675 ibss.beacon_interval =
6676 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6677 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6681 if (!rdev->ops->join_ibss)
6684 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6687 wiphy = &rdev->wiphy;
6689 if (info->attrs[NL80211_ATTR_MAC]) {
6690 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6692 if (!is_valid_ether_addr(ibss.bssid))
6695 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6696 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6698 if (info->attrs[NL80211_ATTR_IE]) {
6699 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6700 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6703 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6707 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6710 switch (ibss.chandef.width) {
6711 case NL80211_CHAN_WIDTH_5:
6712 case NL80211_CHAN_WIDTH_10:
6713 case NL80211_CHAN_WIDTH_20_NOHT:
6715 case NL80211_CHAN_WIDTH_20:
6716 case NL80211_CHAN_WIDTH_40:
6717 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6723 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6724 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6726 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6728 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6730 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6731 struct ieee80211_supported_band *sband =
6732 wiphy->bands[ibss.chandef.chan->band];
6734 err = ieee80211_get_ratemask(sband, rates, n_rates,
6740 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6741 memcpy(&ibss.ht_capa_mask,
6742 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6743 sizeof(ibss.ht_capa_mask));
6745 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6746 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6748 memcpy(&ibss.ht_capa,
6749 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6750 sizeof(ibss.ht_capa));
6753 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6754 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6755 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6758 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6761 connkeys = nl80211_parse_connkeys(rdev,
6762 info->attrs[NL80211_ATTR_KEYS],
6764 if (IS_ERR(connkeys))
6765 return PTR_ERR(connkeys);
6767 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6775 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6777 ibss.userspace_handles_dfs =
6778 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6780 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6786 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6788 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6789 struct net_device *dev = info->user_ptr[1];
6791 if (!rdev->ops->leave_ibss)
6794 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6797 return cfg80211_leave_ibss(rdev, dev, false);
6800 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6803 struct net_device *dev = info->user_ptr[1];
6804 int mcast_rate[IEEE80211_NUM_BANDS];
6808 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6809 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6812 if (!rdev->ops->set_mcast_rate)
6815 memset(mcast_rate, 0, sizeof(mcast_rate));
6817 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6820 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6821 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6824 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6829 static struct sk_buff *
6830 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6831 int approxlen, u32 portid, u32 seq,
6832 enum nl80211_commands cmd,
6833 enum nl80211_attrs attr,
6834 const struct nl80211_vendor_cmd_info *info,
6837 struct sk_buff *skb;
6839 struct nlattr *data;
6841 skb = nlmsg_new(approxlen + 100, gfp);
6845 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6851 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6852 goto nla_put_failure;
6855 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6857 goto nla_put_failure;
6858 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6860 goto nla_put_failure;
6863 data = nla_nest_start(skb, attr);
6865 ((void **)skb->cb)[0] = rdev;
6866 ((void **)skb->cb)[1] = hdr;
6867 ((void **)skb->cb)[2] = data;
6876 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6877 enum nl80211_commands cmd,
6878 enum nl80211_attrs attr,
6879 int vendor_event_idx,
6880 int approxlen, gfp_t gfp)
6882 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6883 const struct nl80211_vendor_cmd_info *info;
6886 case NL80211_CMD_TESTMODE:
6887 if (WARN_ON(vendor_event_idx != -1))
6891 case NL80211_CMD_VENDOR:
6892 if (WARN_ON(vendor_event_idx < 0 ||
6893 vendor_event_idx >= wiphy->n_vendor_events))
6895 info = &wiphy->vendor_events[vendor_event_idx];
6902 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6903 cmd, attr, info, gfp);
6905 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6907 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6909 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6910 void *hdr = ((void **)skb->cb)[1];
6911 struct nlattr *data = ((void **)skb->cb)[2];
6912 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6914 nla_nest_end(skb, data);
6915 genlmsg_end(skb, hdr);
6917 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6918 mcgrp = NL80211_MCGRP_VENDOR;
6920 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6923 EXPORT_SYMBOL(__cfg80211_send_event_skb);
6925 #ifdef CONFIG_NL80211_TESTMODE
6926 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6928 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6929 struct wireless_dev *wdev =
6930 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
6933 if (!rdev->ops->testmode_cmd)
6937 err = PTR_ERR(wdev);
6941 } else if (wdev->wiphy != &rdev->wiphy) {
6945 if (!info->attrs[NL80211_ATTR_TESTDATA])
6948 rdev->cur_cmd_info = info;
6949 err = rdev_testmode_cmd(rdev, wdev,
6950 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6951 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6952 rdev->cur_cmd_info = NULL;
6957 static int nl80211_testmode_dump(struct sk_buff *skb,
6958 struct netlink_callback *cb)
6960 struct cfg80211_registered_device *rdev;
6970 * 0 is a valid index, but not valid for args[0],
6971 * so we need to offset by 1.
6973 phy_idx = cb->args[0] - 1;
6975 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6976 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6981 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6982 nl80211_fam.attrbuf);
6984 err = PTR_ERR(rdev);
6987 phy_idx = rdev->wiphy_idx;
6990 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6992 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6996 data = nla_data((void *)cb->args[1]);
6997 data_len = nla_len((void *)cb->args[1]);
7000 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7006 if (!rdev->ops->testmode_dump) {
7012 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7013 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7014 NL80211_CMD_TESTMODE);
7015 struct nlattr *tmdata;
7020 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7021 genlmsg_cancel(skb, hdr);
7025 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7027 genlmsg_cancel(skb, hdr);
7030 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7031 nla_nest_end(skb, tmdata);
7033 if (err == -ENOBUFS || err == -ENOENT) {
7034 genlmsg_cancel(skb, hdr);
7037 genlmsg_cancel(skb, hdr);
7041 genlmsg_end(skb, hdr);
7046 cb->args[0] = phy_idx + 1;
7053 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7055 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7056 struct net_device *dev = info->user_ptr[1];
7057 struct cfg80211_connect_params connect;
7058 struct wiphy *wiphy;
7059 struct cfg80211_cached_keys *connkeys = NULL;
7062 memset(&connect, 0, sizeof(connect));
7064 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7067 if (!info->attrs[NL80211_ATTR_SSID] ||
7068 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7071 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7073 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7074 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7075 NL80211_CMD_CONNECT))
7078 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7080 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7082 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7083 NL80211_MAX_NR_CIPHER_SUITES);
7087 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7088 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7091 wiphy = &rdev->wiphy;
7093 connect.bg_scan_period = -1;
7094 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7095 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7096 connect.bg_scan_period =
7097 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7100 if (info->attrs[NL80211_ATTR_MAC])
7101 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7102 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7103 connect.bssid_hint =
7104 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7105 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7106 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7108 if (info->attrs[NL80211_ATTR_IE]) {
7109 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7110 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7113 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7114 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7115 if (connect.mfp != NL80211_MFP_REQUIRED &&
7116 connect.mfp != NL80211_MFP_NO)
7119 connect.mfp = NL80211_MFP_NO;
7122 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7123 connect.channel = nl80211_get_valid_chan(
7124 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7125 if (!connect.channel)
7127 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7128 connect.channel_hint = nl80211_get_valid_chan(
7129 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7130 if (!connect.channel_hint)
7134 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7135 connkeys = nl80211_parse_connkeys(rdev,
7136 info->attrs[NL80211_ATTR_KEYS], NULL);
7137 if (IS_ERR(connkeys))
7138 return PTR_ERR(connkeys);
7141 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7142 connect.flags |= ASSOC_REQ_DISABLE_HT;
7144 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7145 memcpy(&connect.ht_capa_mask,
7146 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7147 sizeof(connect.ht_capa_mask));
7149 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7150 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7154 memcpy(&connect.ht_capa,
7155 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7156 sizeof(connect.ht_capa));
7159 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7160 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7162 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7163 memcpy(&connect.vht_capa_mask,
7164 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7165 sizeof(connect.vht_capa_mask));
7167 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7168 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7172 memcpy(&connect.vht_capa,
7173 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7174 sizeof(connect.vht_capa));
7177 wdev_lock(dev->ieee80211_ptr);
7178 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7179 wdev_unlock(dev->ieee80211_ptr);
7185 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7188 struct net_device *dev = info->user_ptr[1];
7192 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7193 reason = WLAN_REASON_DEAUTH_LEAVING;
7195 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7200 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7201 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7204 wdev_lock(dev->ieee80211_ptr);
7205 ret = cfg80211_disconnect(rdev, dev, reason, true);
7206 wdev_unlock(dev->ieee80211_ptr);
7210 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7217 if (!info->attrs[NL80211_ATTR_PID])
7220 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7222 net = get_net_ns_by_pid(pid);
7224 return PTR_ERR(net);
7228 /* check if anything to do */
7229 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7230 err = cfg80211_switch_netns(rdev, net);
7236 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7238 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7239 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7240 struct cfg80211_pmksa *pmksa) = NULL;
7241 struct net_device *dev = info->user_ptr[1];
7242 struct cfg80211_pmksa pmksa;
7244 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7246 if (!info->attrs[NL80211_ATTR_MAC])
7249 if (!info->attrs[NL80211_ATTR_PMKID])
7252 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7253 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7255 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7256 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7259 switch (info->genlhdr->cmd) {
7260 case NL80211_CMD_SET_PMKSA:
7261 rdev_ops = rdev->ops->set_pmksa;
7263 case NL80211_CMD_DEL_PMKSA:
7264 rdev_ops = rdev->ops->del_pmksa;
7274 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7277 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7280 struct net_device *dev = info->user_ptr[1];
7282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7286 if (!rdev->ops->flush_pmksa)
7289 return rdev_flush_pmksa(rdev, dev);
7292 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7294 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7295 struct net_device *dev = info->user_ptr[1];
7296 u8 action_code, dialog_token;
7297 u32 peer_capability = 0;
7301 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7302 !rdev->ops->tdls_mgmt)
7305 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7306 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7307 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7308 !info->attrs[NL80211_ATTR_IE] ||
7309 !info->attrs[NL80211_ATTR_MAC])
7312 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7313 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7314 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7315 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7316 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7318 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7320 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7321 dialog_token, status_code, peer_capability,
7322 nla_data(info->attrs[NL80211_ATTR_IE]),
7323 nla_len(info->attrs[NL80211_ATTR_IE]));
7326 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7328 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7329 struct net_device *dev = info->user_ptr[1];
7330 enum nl80211_tdls_operation operation;
7333 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7334 !rdev->ops->tdls_oper)
7337 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7338 !info->attrs[NL80211_ATTR_MAC])
7341 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7342 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7344 return rdev_tdls_oper(rdev, dev, peer, operation);
7347 static int nl80211_remain_on_channel(struct sk_buff *skb,
7348 struct genl_info *info)
7350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7351 struct wireless_dev *wdev = info->user_ptr[1];
7352 struct cfg80211_chan_def chandef;
7353 struct sk_buff *msg;
7359 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7360 !info->attrs[NL80211_ATTR_DURATION])
7363 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7365 if (!rdev->ops->remain_on_channel ||
7366 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7370 * We should be on that channel for at least a minimum amount of
7371 * time (10ms) but no longer than the driver supports.
7373 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7374 duration > rdev->wiphy.max_remain_on_channel_duration)
7377 err = nl80211_parse_chandef(rdev, info, &chandef);
7381 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7385 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7386 NL80211_CMD_REMAIN_ON_CHANNEL);
7392 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7398 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7399 goto nla_put_failure;
7401 genlmsg_end(msg, hdr);
7403 return genlmsg_reply(msg, info);
7412 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7413 struct genl_info *info)
7415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7416 struct wireless_dev *wdev = info->user_ptr[1];
7419 if (!info->attrs[NL80211_ATTR_COOKIE])
7422 if (!rdev->ops->cancel_remain_on_channel)
7425 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7427 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7430 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7431 u8 *rates, u8 rates_len)
7436 for (i = 0; i < rates_len; i++) {
7437 int rate = (rates[i] & 0x7f) * 5;
7439 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7440 struct ieee80211_rate *srate =
7441 &sband->bitrates[ridx];
7442 if (rate == srate->bitrate) {
7447 if (ridx == sband->n_bitrates)
7448 return 0; /* rate not found */
7454 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7455 u8 *rates, u8 rates_len,
7456 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7460 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7462 for (i = 0; i < rates_len; i++) {
7465 ridx = rates[i] / 8;
7466 rbit = BIT(rates[i] % 8);
7468 /* check validity */
7469 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7472 /* check availability */
7473 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7482 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7486 switch (vht_mcs_map) {
7487 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7489 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7492 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7495 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7505 static void vht_build_mcs_mask(u16 vht_mcs_map,
7506 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7510 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7511 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7516 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7517 struct nl80211_txrate_vht *txrate,
7518 u16 mcs[NL80211_VHT_NSS_MAX])
7520 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7521 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7524 if (!sband->vht_cap.vht_supported)
7527 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7529 /* Build vht_mcs_mask from VHT capabilities */
7530 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7532 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7533 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7534 mcs[i] = txrate->mcs[i];
7542 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7543 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7544 .len = NL80211_MAX_SUPP_RATES },
7545 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7546 .len = NL80211_MAX_SUPP_HT_RATES },
7547 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7548 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7551 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7552 struct genl_info *info)
7554 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7556 struct cfg80211_bitrate_mask mask;
7558 struct net_device *dev = info->user_ptr[1];
7559 struct nlattr *tx_rates;
7560 struct ieee80211_supported_band *sband;
7563 if (!rdev->ops->set_bitrate_mask)
7566 memset(&mask, 0, sizeof(mask));
7567 /* Default to all rates enabled */
7568 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7569 sband = rdev->wiphy.bands[i];
7574 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7575 memcpy(mask.control[i].ht_mcs,
7576 sband->ht_cap.mcs.rx_mask,
7577 sizeof(mask.control[i].ht_mcs));
7579 if (!sband->vht_cap.vht_supported)
7582 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7583 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7586 /* if no rates are given set it back to the defaults */
7587 if (!info->attrs[NL80211_ATTR_TX_RATES])
7591 * The nested attribute uses enum nl80211_band as the index. This maps
7592 * directly to the enum ieee80211_band values used in cfg80211.
7594 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7595 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7596 enum ieee80211_band band = nla_type(tx_rates);
7599 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7601 sband = rdev->wiphy.bands[band];
7604 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7605 nla_len(tx_rates), nl80211_txattr_policy);
7608 if (tb[NL80211_TXRATE_LEGACY]) {
7609 mask.control[band].legacy = rateset_to_mask(
7611 nla_data(tb[NL80211_TXRATE_LEGACY]),
7612 nla_len(tb[NL80211_TXRATE_LEGACY]));
7613 if ((mask.control[band].legacy == 0) &&
7614 nla_len(tb[NL80211_TXRATE_LEGACY]))
7617 if (tb[NL80211_TXRATE_HT]) {
7618 if (!ht_rateset_to_mask(
7620 nla_data(tb[NL80211_TXRATE_HT]),
7621 nla_len(tb[NL80211_TXRATE_HT]),
7622 mask.control[band].ht_mcs))
7625 if (tb[NL80211_TXRATE_VHT]) {
7626 if (!vht_set_mcs_mask(
7628 nla_data(tb[NL80211_TXRATE_VHT]),
7629 mask.control[band].vht_mcs))
7632 if (tb[NL80211_TXRATE_GI]) {
7633 mask.control[band].gi =
7634 nla_get_u8(tb[NL80211_TXRATE_GI]);
7635 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7639 if (mask.control[band].legacy == 0) {
7640 /* don't allow empty legacy rates if HT or VHT
7641 * are not even supported.
7643 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7644 rdev->wiphy.bands[band]->vht_cap.vht_supported))
7647 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7648 if (mask.control[band].ht_mcs[i])
7651 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7652 if (mask.control[band].vht_mcs[i])
7655 /* legacy and mcs rates may not be both empty */
7661 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7664 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7667 struct wireless_dev *wdev = info->user_ptr[1];
7668 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7670 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7673 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7674 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7676 switch (wdev->iftype) {
7677 case NL80211_IFTYPE_STATION:
7678 case NL80211_IFTYPE_ADHOC:
7679 case NL80211_IFTYPE_P2P_CLIENT:
7680 case NL80211_IFTYPE_AP:
7681 case NL80211_IFTYPE_AP_VLAN:
7682 case NL80211_IFTYPE_MESH_POINT:
7683 case NL80211_IFTYPE_P2P_GO:
7684 case NL80211_IFTYPE_P2P_DEVICE:
7690 /* not much point in registering if we can't reply */
7691 if (!rdev->ops->mgmt_tx)
7694 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7695 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7696 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7699 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7702 struct wireless_dev *wdev = info->user_ptr[1];
7703 struct cfg80211_chan_def chandef;
7707 struct sk_buff *msg = NULL;
7708 struct cfg80211_mgmt_tx_params params = {
7709 .dont_wait_for_ack =
7710 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7713 if (!info->attrs[NL80211_ATTR_FRAME])
7716 if (!rdev->ops->mgmt_tx)
7719 switch (wdev->iftype) {
7720 case NL80211_IFTYPE_P2P_DEVICE:
7721 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7723 case NL80211_IFTYPE_STATION:
7724 case NL80211_IFTYPE_ADHOC:
7725 case NL80211_IFTYPE_P2P_CLIENT:
7726 case NL80211_IFTYPE_AP:
7727 case NL80211_IFTYPE_AP_VLAN:
7728 case NL80211_IFTYPE_MESH_POINT:
7729 case NL80211_IFTYPE_P2P_GO:
7735 if (info->attrs[NL80211_ATTR_DURATION]) {
7736 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7738 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7741 * We should wait on the channel for at least a minimum amount
7742 * of time (10ms) but no longer than the driver supports.
7744 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7745 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7750 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7752 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7755 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7757 /* get the channel if any has been specified, otherwise pass NULL to
7758 * the driver. The latter will use the current one
7760 chandef.chan = NULL;
7761 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7762 err = nl80211_parse_chandef(rdev, info, &chandef);
7767 if (!chandef.chan && params.offchan)
7770 if (!params.dont_wait_for_ack) {
7771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7775 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7783 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7784 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7785 params.chan = chandef.chan;
7786 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7791 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7792 goto nla_put_failure;
7794 genlmsg_end(msg, hdr);
7795 return genlmsg_reply(msg, info);
7807 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7810 struct wireless_dev *wdev = info->user_ptr[1];
7813 if (!info->attrs[NL80211_ATTR_COOKIE])
7816 if (!rdev->ops->mgmt_tx_cancel_wait)
7819 switch (wdev->iftype) {
7820 case NL80211_IFTYPE_STATION:
7821 case NL80211_IFTYPE_ADHOC:
7822 case NL80211_IFTYPE_P2P_CLIENT:
7823 case NL80211_IFTYPE_AP:
7824 case NL80211_IFTYPE_AP_VLAN:
7825 case NL80211_IFTYPE_P2P_GO:
7826 case NL80211_IFTYPE_P2P_DEVICE:
7832 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7834 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7837 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7840 struct wireless_dev *wdev;
7841 struct net_device *dev = info->user_ptr[1];
7846 if (!info->attrs[NL80211_ATTR_PS_STATE])
7849 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7851 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7854 wdev = dev->ieee80211_ptr;
7856 if (!rdev->ops->set_power_mgmt)
7859 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7861 if (state == wdev->ps)
7864 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7870 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7873 enum nl80211_ps_state ps_state;
7874 struct wireless_dev *wdev;
7875 struct net_device *dev = info->user_ptr[1];
7876 struct sk_buff *msg;
7880 wdev = dev->ieee80211_ptr;
7882 if (!rdev->ops->set_power_mgmt)
7885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7889 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7890 NL80211_CMD_GET_POWER_SAVE);
7897 ps_state = NL80211_PS_ENABLED;
7899 ps_state = NL80211_PS_DISABLED;
7901 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7902 goto nla_put_failure;
7904 genlmsg_end(msg, hdr);
7905 return genlmsg_reply(msg, info);
7914 static const struct nla_policy
7915 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
7916 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7917 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7918 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7919 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7920 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7921 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7924 static int nl80211_set_cqm_txe(struct genl_info *info,
7925 u32 rate, u32 pkts, u32 intvl)
7927 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7928 struct net_device *dev = info->user_ptr[1];
7929 struct wireless_dev *wdev = dev->ieee80211_ptr;
7931 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7934 if (!rdev->ops->set_cqm_txe_config)
7937 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7938 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7941 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7944 static int nl80211_set_cqm_rssi(struct genl_info *info,
7945 s32 threshold, u32 hysteresis)
7947 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7948 struct net_device *dev = info->user_ptr[1];
7949 struct wireless_dev *wdev = dev->ieee80211_ptr;
7954 /* disabling - hysteresis should also be zero then */
7958 if (!rdev->ops->set_cqm_rssi_config)
7961 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7962 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7965 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7968 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7970 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7974 cqm = info->attrs[NL80211_ATTR_CQM];
7978 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7979 nl80211_attr_cqm_policy);
7983 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7984 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7985 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7986 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7988 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7991 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7992 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7993 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7994 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7995 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7996 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7998 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8004 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8007 struct net_device *dev = info->user_ptr[1];
8008 struct mesh_config cfg;
8009 struct mesh_setup setup;
8012 /* start with default */
8013 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8014 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8016 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8017 /* and parse parameters if given */
8018 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8023 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8024 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8027 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8028 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8030 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8031 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8032 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8035 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8036 setup.beacon_interval =
8037 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8038 if (setup.beacon_interval < 10 ||
8039 setup.beacon_interval > 10000)
8043 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8045 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8046 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8050 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8051 /* parse additional setup parameters if given */
8052 err = nl80211_parse_mesh_setup(info, &setup);
8058 cfg.auto_open_plinks = false;
8060 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8061 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8065 /* cfg80211_join_mesh() will sort it out */
8066 setup.chandef.chan = NULL;
8069 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8070 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8072 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8073 struct ieee80211_supported_band *sband;
8075 if (!setup.chandef.chan)
8078 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8080 err = ieee80211_get_ratemask(sband, rates, n_rates,
8081 &setup.basic_rates);
8086 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8089 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8092 struct net_device *dev = info->user_ptr[1];
8094 return cfg80211_leave_mesh(rdev, dev);
8098 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8099 struct cfg80211_registered_device *rdev)
8101 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8102 struct nlattr *nl_pats, *nl_pat;
8105 if (!wowlan->n_patterns)
8108 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8112 for (i = 0; i < wowlan->n_patterns; i++) {
8113 nl_pat = nla_nest_start(msg, i + 1);
8116 pat_len = wowlan->patterns[i].pattern_len;
8117 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8118 wowlan->patterns[i].mask) ||
8119 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8120 wowlan->patterns[i].pattern) ||
8121 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8122 wowlan->patterns[i].pkt_offset))
8124 nla_nest_end(msg, nl_pat);
8126 nla_nest_end(msg, nl_pats);
8131 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8132 struct cfg80211_wowlan_tcp *tcp)
8134 struct nlattr *nl_tcp;
8139 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8143 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8144 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8145 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8146 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8147 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8148 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8149 tcp->payload_len, tcp->payload) ||
8150 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8151 tcp->data_interval) ||
8152 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8153 tcp->wake_len, tcp->wake_data) ||
8154 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8155 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8158 if (tcp->payload_seq.len &&
8159 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8160 sizeof(tcp->payload_seq), &tcp->payload_seq))
8163 if (tcp->payload_tok.len &&
8164 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8165 sizeof(tcp->payload_tok) + tcp->tokens_size,
8169 nla_nest_end(msg, nl_tcp);
8174 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8176 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8177 struct sk_buff *msg;
8179 u32 size = NLMSG_DEFAULT_SIZE;
8181 if (!rdev->wiphy.wowlan)
8184 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8185 /* adjust size to have room for all the data */
8186 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8187 rdev->wiphy.wowlan_config->tcp->payload_len +
8188 rdev->wiphy.wowlan_config->tcp->wake_len +
8189 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8192 msg = nlmsg_new(size, GFP_KERNEL);
8196 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8197 NL80211_CMD_GET_WOWLAN);
8199 goto nla_put_failure;
8201 if (rdev->wiphy.wowlan_config) {
8202 struct nlattr *nl_wowlan;
8204 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8206 goto nla_put_failure;
8208 if ((rdev->wiphy.wowlan_config->any &&
8209 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8210 (rdev->wiphy.wowlan_config->disconnect &&
8211 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8212 (rdev->wiphy.wowlan_config->magic_pkt &&
8213 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8214 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8215 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8216 (rdev->wiphy.wowlan_config->eap_identity_req &&
8217 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8218 (rdev->wiphy.wowlan_config->four_way_handshake &&
8219 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8220 (rdev->wiphy.wowlan_config->rfkill_release &&
8221 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8222 goto nla_put_failure;
8224 if (nl80211_send_wowlan_patterns(msg, rdev))
8225 goto nla_put_failure;
8227 if (nl80211_send_wowlan_tcp(msg,
8228 rdev->wiphy.wowlan_config->tcp))
8229 goto nla_put_failure;
8231 nla_nest_end(msg, nl_wowlan);
8234 genlmsg_end(msg, hdr);
8235 return genlmsg_reply(msg, info);
8242 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8243 struct nlattr *attr,
8244 struct cfg80211_wowlan *trig)
8246 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8247 struct cfg80211_wowlan_tcp *cfg;
8248 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8249 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8251 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8254 if (!rdev->wiphy.wowlan->tcp)
8257 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8258 nla_data(attr), nla_len(attr),
8259 nl80211_wowlan_tcp_policy);
8263 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8264 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8265 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8266 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8267 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8268 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8269 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8270 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8273 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8274 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8277 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8278 rdev->wiphy.wowlan->tcp->data_interval_max ||
8279 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8282 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8283 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8286 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8287 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8290 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8291 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8293 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8294 tokens_size = tokln - sizeof(*tok);
8296 if (!tok->len || tokens_size % tok->len)
8298 if (!rdev->wiphy.wowlan->tcp->tok)
8300 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8302 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8304 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8306 if (tok->offset + tok->len > data_size)
8310 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8311 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8312 if (!rdev->wiphy.wowlan->tcp->seq)
8314 if (seq->len == 0 || seq->len > 4)
8316 if (seq->len + seq->offset > data_size)
8320 size = sizeof(*cfg);
8322 size += wake_size + wake_mask_size;
8323 size += tokens_size;
8325 cfg = kzalloc(size, GFP_KERNEL);
8328 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8329 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8330 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8332 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8333 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8337 /* allocate a socket and port for it and use it */
8338 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8339 IPPROTO_TCP, &cfg->sock, 1);
8344 if (inet_csk_get_port(cfg->sock->sk, port)) {
8345 sock_release(cfg->sock);
8349 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8355 cfg->src_port = port;
8358 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8359 cfg->payload_len = data_size;
8360 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8361 memcpy((void *)cfg->payload,
8362 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8365 cfg->payload_seq = *seq;
8366 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8367 cfg->wake_len = wake_size;
8368 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8369 memcpy((void *)cfg->wake_data,
8370 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8372 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8373 data_size + wake_size;
8374 memcpy((void *)cfg->wake_mask,
8375 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8378 cfg->tokens_size = tokens_size;
8379 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8387 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8389 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8390 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8391 struct cfg80211_wowlan new_triggers = {};
8392 struct cfg80211_wowlan *ntrig;
8393 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8395 bool prev_enabled = rdev->wiphy.wowlan_config;
8400 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8401 cfg80211_rdev_free_wowlan(rdev);
8402 rdev->wiphy.wowlan_config = NULL;
8406 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8407 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8408 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8409 nl80211_wowlan_policy);
8413 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8414 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8416 new_triggers.any = true;
8419 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8420 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8422 new_triggers.disconnect = true;
8425 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8426 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8428 new_triggers.magic_pkt = true;
8431 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8434 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8435 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8437 new_triggers.gtk_rekey_failure = true;
8440 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8441 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8443 new_triggers.eap_identity_req = true;
8446 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8447 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8449 new_triggers.four_way_handshake = true;
8452 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8453 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8455 new_triggers.rfkill_release = true;
8458 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8461 int rem, pat_len, mask_len, pkt_offset;
8462 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8464 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8467 if (n_patterns > wowlan->n_patterns)
8470 new_triggers.patterns = kcalloc(n_patterns,
8471 sizeof(new_triggers.patterns[0]),
8473 if (!new_triggers.patterns)
8476 new_triggers.n_patterns = n_patterns;
8479 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8481 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8482 nla_len(pat), NULL);
8484 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8485 !pat_tb[NL80211_PKTPAT_PATTERN])
8487 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8488 mask_len = DIV_ROUND_UP(pat_len, 8);
8489 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8491 if (pat_len > wowlan->pattern_max_len ||
8492 pat_len < wowlan->pattern_min_len)
8495 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8498 pkt_offset = nla_get_u32(
8499 pat_tb[NL80211_PKTPAT_OFFSET]);
8500 if (pkt_offset > wowlan->max_pkt_offset)
8502 new_triggers.patterns[i].pkt_offset = pkt_offset;
8504 new_triggers.patterns[i].mask =
8505 kmalloc(mask_len + pat_len, GFP_KERNEL);
8506 if (!new_triggers.patterns[i].mask) {
8510 new_triggers.patterns[i].pattern =
8511 new_triggers.patterns[i].mask + mask_len;
8512 memcpy(new_triggers.patterns[i].mask,
8513 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8515 new_triggers.patterns[i].pattern_len = pat_len;
8516 memcpy(new_triggers.patterns[i].pattern,
8517 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8523 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8524 err = nl80211_parse_wowlan_tcp(
8525 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8531 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8536 cfg80211_rdev_free_wowlan(rdev);
8537 rdev->wiphy.wowlan_config = ntrig;
8540 if (rdev->ops->set_wakeup &&
8541 prev_enabled != !!rdev->wiphy.wowlan_config)
8542 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8546 for (i = 0; i < new_triggers.n_patterns; i++)
8547 kfree(new_triggers.patterns[i].mask);
8548 kfree(new_triggers.patterns);
8549 if (new_triggers.tcp && new_triggers.tcp->sock)
8550 sock_release(new_triggers.tcp->sock);
8551 kfree(new_triggers.tcp);
8556 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8557 struct cfg80211_registered_device *rdev)
8559 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8561 struct cfg80211_coalesce_rules *rule;
8563 if (!rdev->coalesce->n_rules)
8566 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8570 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8571 nl_rule = nla_nest_start(msg, i + 1);
8575 rule = &rdev->coalesce->rules[i];
8576 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8580 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8584 nl_pats = nla_nest_start(msg,
8585 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8589 for (j = 0; j < rule->n_patterns; j++) {
8590 nl_pat = nla_nest_start(msg, j + 1);
8593 pat_len = rule->patterns[j].pattern_len;
8594 if (nla_put(msg, NL80211_PKTPAT_MASK,
8595 DIV_ROUND_UP(pat_len, 8),
8596 rule->patterns[j].mask) ||
8597 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8598 rule->patterns[j].pattern) ||
8599 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8600 rule->patterns[j].pkt_offset))
8602 nla_nest_end(msg, nl_pat);
8604 nla_nest_end(msg, nl_pats);
8605 nla_nest_end(msg, nl_rule);
8607 nla_nest_end(msg, nl_rules);
8612 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8615 struct sk_buff *msg;
8618 if (!rdev->wiphy.coalesce)
8621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8625 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8626 NL80211_CMD_GET_COALESCE);
8628 goto nla_put_failure;
8630 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8631 goto nla_put_failure;
8633 genlmsg_end(msg, hdr);
8634 return genlmsg_reply(msg, info);
8641 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8643 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8645 struct cfg80211_coalesce_rules *rule;
8650 for (i = 0; i < coalesce->n_rules; i++) {
8651 rule = &coalesce->rules[i];
8652 for (j = 0; j < rule->n_patterns; j++)
8653 kfree(rule->patterns[j].mask);
8654 kfree(rule->patterns);
8656 kfree(coalesce->rules);
8658 rdev->coalesce = NULL;
8661 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8662 struct nlattr *rule,
8663 struct cfg80211_coalesce_rules *new_rule)
8666 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8667 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8668 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8669 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8671 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8672 nla_len(rule), nl80211_coalesce_policy);
8676 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8678 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8679 if (new_rule->delay > coalesce->max_delay)
8682 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8683 new_rule->condition =
8684 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8685 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8686 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8689 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8692 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8695 if (n_patterns > coalesce->n_patterns)
8698 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8700 if (!new_rule->patterns)
8703 new_rule->n_patterns = n_patterns;
8706 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8708 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8709 nla_len(pat), NULL);
8710 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8711 !pat_tb[NL80211_PKTPAT_PATTERN])
8713 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8714 mask_len = DIV_ROUND_UP(pat_len, 8);
8715 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8717 if (pat_len > coalesce->pattern_max_len ||
8718 pat_len < coalesce->pattern_min_len)
8721 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8724 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8725 if (pkt_offset > coalesce->max_pkt_offset)
8727 new_rule->patterns[i].pkt_offset = pkt_offset;
8729 new_rule->patterns[i].mask =
8730 kmalloc(mask_len + pat_len, GFP_KERNEL);
8731 if (!new_rule->patterns[i].mask)
8733 new_rule->patterns[i].pattern =
8734 new_rule->patterns[i].mask + mask_len;
8735 memcpy(new_rule->patterns[i].mask,
8736 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8737 new_rule->patterns[i].pattern_len = pat_len;
8738 memcpy(new_rule->patterns[i].pattern,
8739 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8746 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8748 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8749 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8750 struct cfg80211_coalesce new_coalesce = {};
8751 struct cfg80211_coalesce *n_coalesce;
8752 int err, rem_rule, n_rules = 0, i, j;
8753 struct nlattr *rule;
8754 struct cfg80211_coalesce_rules *tmp_rule;
8756 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8759 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8760 cfg80211_rdev_free_coalesce(rdev);
8761 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8765 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8768 if (n_rules > coalesce->n_rules)
8771 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8773 if (!new_coalesce.rules)
8776 new_coalesce.n_rules = n_rules;
8779 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8781 err = nl80211_parse_coalesce_rule(rdev, rule,
8782 &new_coalesce.rules[i]);
8789 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8793 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8798 cfg80211_rdev_free_coalesce(rdev);
8799 rdev->coalesce = n_coalesce;
8803 for (i = 0; i < new_coalesce.n_rules; i++) {
8804 tmp_rule = &new_coalesce.rules[i];
8805 for (j = 0; j < tmp_rule->n_patterns; j++)
8806 kfree(tmp_rule->patterns[j].mask);
8807 kfree(tmp_rule->patterns);
8809 kfree(new_coalesce.rules);
8814 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8817 struct net_device *dev = info->user_ptr[1];
8818 struct wireless_dev *wdev = dev->ieee80211_ptr;
8819 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8820 struct cfg80211_gtk_rekey_data rekey_data;
8823 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8826 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8827 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8828 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8829 nl80211_rekey_policy);
8833 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8835 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8837 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8840 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8842 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8844 memcpy(rekey_data.replay_ctr,
8845 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8846 NL80211_REPLAY_CTR_LEN);
8849 if (!wdev->current_bss) {
8854 if (!rdev->ops->set_rekey_data) {
8859 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8865 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8866 struct genl_info *info)
8868 struct net_device *dev = info->user_ptr[1];
8869 struct wireless_dev *wdev = dev->ieee80211_ptr;
8871 if (wdev->iftype != NL80211_IFTYPE_AP &&
8872 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8875 if (wdev->ap_unexpected_nlportid)
8878 wdev->ap_unexpected_nlportid = info->snd_portid;
8882 static int nl80211_probe_client(struct sk_buff *skb,
8883 struct genl_info *info)
8885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8886 struct net_device *dev = info->user_ptr[1];
8887 struct wireless_dev *wdev = dev->ieee80211_ptr;
8888 struct sk_buff *msg;
8894 if (wdev->iftype != NL80211_IFTYPE_AP &&
8895 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8898 if (!info->attrs[NL80211_ATTR_MAC])
8901 if (!rdev->ops->probe_client)
8904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8909 NL80211_CMD_PROBE_CLIENT);
8915 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8917 err = rdev_probe_client(rdev, dev, addr, &cookie);
8921 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8922 goto nla_put_failure;
8924 genlmsg_end(msg, hdr);
8926 return genlmsg_reply(msg, info);
8935 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8938 struct cfg80211_beacon_registration *reg, *nreg;
8941 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8944 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8948 /* First, check if already registered. */
8949 spin_lock_bh(&rdev->beacon_registrations_lock);
8950 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8951 if (reg->nlportid == info->snd_portid) {
8956 /* Add it to the list */
8957 nreg->nlportid = info->snd_portid;
8958 list_add(&nreg->list, &rdev->beacon_registrations);
8960 spin_unlock_bh(&rdev->beacon_registrations_lock);
8964 spin_unlock_bh(&rdev->beacon_registrations_lock);
8969 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8972 struct wireless_dev *wdev = info->user_ptr[1];
8975 if (!rdev->ops->start_p2p_device)
8978 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8981 if (wdev->p2p_started)
8984 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8988 err = rdev_start_p2p_device(rdev, wdev);
8992 wdev->p2p_started = true;
8998 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9000 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9001 struct wireless_dev *wdev = info->user_ptr[1];
9003 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9006 if (!rdev->ops->stop_p2p_device)
9009 cfg80211_stop_p2p_device(rdev, wdev);
9014 static int nl80211_get_protocol_features(struct sk_buff *skb,
9015 struct genl_info *info)
9018 struct sk_buff *msg;
9020 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9024 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9025 NL80211_CMD_GET_PROTOCOL_FEATURES);
9027 goto nla_put_failure;
9029 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9030 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9031 goto nla_put_failure;
9033 genlmsg_end(msg, hdr);
9034 return genlmsg_reply(msg, info);
9041 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9043 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9044 struct cfg80211_update_ft_ies_params ft_params;
9045 struct net_device *dev = info->user_ptr[1];
9047 if (!rdev->ops->update_ft_ies)
9050 if (!info->attrs[NL80211_ATTR_MDID] ||
9051 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9054 memset(&ft_params, 0, sizeof(ft_params));
9055 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9056 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9057 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9059 return rdev_update_ft_ies(rdev, dev, &ft_params);
9062 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9063 struct genl_info *info)
9065 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9066 struct wireless_dev *wdev = info->user_ptr[1];
9067 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9071 if (!rdev->ops->crit_proto_start)
9074 if (WARN_ON(!rdev->ops->crit_proto_stop))
9077 if (rdev->crit_proto_nlportid)
9080 /* determine protocol if provided */
9081 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9082 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9084 if (proto >= NUM_NL80211_CRIT_PROTO)
9087 /* timeout must be provided */
9088 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9092 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9094 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9097 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9099 rdev->crit_proto_nlportid = info->snd_portid;
9104 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9105 struct genl_info *info)
9107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9108 struct wireless_dev *wdev = info->user_ptr[1];
9110 if (!rdev->ops->crit_proto_stop)
9113 if (rdev->crit_proto_nlportid) {
9114 rdev->crit_proto_nlportid = 0;
9115 rdev_crit_proto_stop(rdev, wdev);
9120 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9123 struct wireless_dev *wdev =
9124 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9128 if (!rdev->wiphy.vendor_commands)
9132 err = PTR_ERR(wdev);
9136 } else if (wdev->wiphy != &rdev->wiphy) {
9140 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9141 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9144 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9145 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9146 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9147 const struct wiphy_vendor_command *vcmd;
9151 vcmd = &rdev->wiphy.vendor_commands[i];
9153 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9156 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9157 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9160 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9164 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9166 !netif_running(wdev->netdev))
9168 if (!wdev->netdev && !wdev->p2p_started)
9175 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9176 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9177 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9180 rdev->cur_cmd_info = info;
9181 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9183 rdev->cur_cmd_info = NULL;
9190 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9191 enum nl80211_commands cmd,
9192 enum nl80211_attrs attr,
9195 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9197 if (WARN_ON(!rdev->cur_cmd_info))
9200 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9201 rdev->cur_cmd_info->snd_portid,
9202 rdev->cur_cmd_info->snd_seq,
9203 cmd, attr, NULL, GFP_KERNEL);
9205 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9207 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9209 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9210 void *hdr = ((void **)skb->cb)[1];
9211 struct nlattr *data = ((void **)skb->cb)[2];
9213 if (WARN_ON(!rdev->cur_cmd_info)) {
9218 nla_nest_end(skb, data);
9219 genlmsg_end(skb, hdr);
9220 return genlmsg_reply(skb, rdev->cur_cmd_info);
9222 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9225 static int nl80211_set_qos_map(struct sk_buff *skb,
9226 struct genl_info *info)
9228 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9229 struct cfg80211_qos_map *qos_map = NULL;
9230 struct net_device *dev = info->user_ptr[1];
9231 u8 *pos, len, num_des, des_len, des;
9234 if (!rdev->ops->set_qos_map)
9237 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9238 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9239 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9241 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9242 len > IEEE80211_QOS_MAP_LEN_MAX)
9245 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9249 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9252 sizeof(struct cfg80211_dscp_exception);
9253 memcpy(qos_map->dscp_exception, pos, des_len);
9254 qos_map->num_des = num_des;
9255 for (des = 0; des < num_des; des++) {
9256 if (qos_map->dscp_exception[des].up > 7) {
9263 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9266 wdev_lock(dev->ieee80211_ptr);
9267 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9269 ret = rdev_set_qos_map(rdev, dev, qos_map);
9270 wdev_unlock(dev->ieee80211_ptr);
9276 #define NL80211_FLAG_NEED_WIPHY 0x01
9277 #define NL80211_FLAG_NEED_NETDEV 0x02
9278 #define NL80211_FLAG_NEED_RTNL 0x04
9279 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9280 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9281 NL80211_FLAG_CHECK_NETDEV_UP)
9282 #define NL80211_FLAG_NEED_WDEV 0x10
9283 /* If a netdev is associated, it must be UP, P2P must be started */
9284 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9285 NL80211_FLAG_CHECK_NETDEV_UP)
9287 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9288 struct genl_info *info)
9290 struct cfg80211_registered_device *rdev;
9291 struct wireless_dev *wdev;
9292 struct net_device *dev;
9293 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9298 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9299 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9303 return PTR_ERR(rdev);
9305 info->user_ptr[0] = rdev;
9306 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9307 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9310 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9315 return PTR_ERR(wdev);
9319 rdev = wiphy_to_dev(wdev->wiphy);
9321 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9328 info->user_ptr[1] = dev;
9330 info->user_ptr[1] = wdev;
9334 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9335 !netif_running(dev)) {
9342 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9343 if (!wdev->p2p_started) {
9350 info->user_ptr[0] = rdev;
9356 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
9357 struct genl_info *info)
9359 if (info->user_ptr[1]) {
9360 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9361 struct wireless_dev *wdev = info->user_ptr[1];
9364 dev_put(wdev->netdev);
9366 dev_put(info->user_ptr[1]);
9369 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9373 static const struct genl_ops nl80211_ops[] = {
9375 .cmd = NL80211_CMD_GET_WIPHY,
9376 .doit = nl80211_get_wiphy,
9377 .dumpit = nl80211_dump_wiphy,
9378 .done = nl80211_dump_wiphy_done,
9379 .policy = nl80211_policy,
9380 /* can be retrieved by unprivileged users */
9381 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9382 NL80211_FLAG_NEED_RTNL,
9385 .cmd = NL80211_CMD_SET_WIPHY,
9386 .doit = nl80211_set_wiphy,
9387 .policy = nl80211_policy,
9388 .flags = GENL_ADMIN_PERM,
9389 .internal_flags = NL80211_FLAG_NEED_RTNL,
9392 .cmd = NL80211_CMD_GET_INTERFACE,
9393 .doit = nl80211_get_interface,
9394 .dumpit = nl80211_dump_interface,
9395 .policy = nl80211_policy,
9396 /* can be retrieved by unprivileged users */
9397 .internal_flags = NL80211_FLAG_NEED_WDEV |
9398 NL80211_FLAG_NEED_RTNL,
9401 .cmd = NL80211_CMD_SET_INTERFACE,
9402 .doit = nl80211_set_interface,
9403 .policy = nl80211_policy,
9404 .flags = GENL_ADMIN_PERM,
9405 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9406 NL80211_FLAG_NEED_RTNL,
9409 .cmd = NL80211_CMD_NEW_INTERFACE,
9410 .doit = nl80211_new_interface,
9411 .policy = nl80211_policy,
9412 .flags = GENL_ADMIN_PERM,
9413 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9414 NL80211_FLAG_NEED_RTNL,
9417 .cmd = NL80211_CMD_DEL_INTERFACE,
9418 .doit = nl80211_del_interface,
9419 .policy = nl80211_policy,
9420 .flags = GENL_ADMIN_PERM,
9421 .internal_flags = NL80211_FLAG_NEED_WDEV |
9422 NL80211_FLAG_NEED_RTNL,
9425 .cmd = NL80211_CMD_GET_KEY,
9426 .doit = nl80211_get_key,
9427 .policy = nl80211_policy,
9428 .flags = GENL_ADMIN_PERM,
9429 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9430 NL80211_FLAG_NEED_RTNL,
9433 .cmd = NL80211_CMD_SET_KEY,
9434 .doit = nl80211_set_key,
9435 .policy = nl80211_policy,
9436 .flags = GENL_ADMIN_PERM,
9437 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9438 NL80211_FLAG_NEED_RTNL,
9441 .cmd = NL80211_CMD_NEW_KEY,
9442 .doit = nl80211_new_key,
9443 .policy = nl80211_policy,
9444 .flags = GENL_ADMIN_PERM,
9445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9446 NL80211_FLAG_NEED_RTNL,
9449 .cmd = NL80211_CMD_DEL_KEY,
9450 .doit = nl80211_del_key,
9451 .policy = nl80211_policy,
9452 .flags = GENL_ADMIN_PERM,
9453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9454 NL80211_FLAG_NEED_RTNL,
9457 .cmd = NL80211_CMD_SET_BEACON,
9458 .policy = nl80211_policy,
9459 .flags = GENL_ADMIN_PERM,
9460 .doit = nl80211_set_beacon,
9461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9462 NL80211_FLAG_NEED_RTNL,
9465 .cmd = NL80211_CMD_START_AP,
9466 .policy = nl80211_policy,
9467 .flags = GENL_ADMIN_PERM,
9468 .doit = nl80211_start_ap,
9469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9470 NL80211_FLAG_NEED_RTNL,
9473 .cmd = NL80211_CMD_STOP_AP,
9474 .policy = nl80211_policy,
9475 .flags = GENL_ADMIN_PERM,
9476 .doit = nl80211_stop_ap,
9477 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9478 NL80211_FLAG_NEED_RTNL,
9481 .cmd = NL80211_CMD_GET_STATION,
9482 .doit = nl80211_get_station,
9483 .dumpit = nl80211_dump_station,
9484 .policy = nl80211_policy,
9485 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9486 NL80211_FLAG_NEED_RTNL,
9489 .cmd = NL80211_CMD_SET_STATION,
9490 .doit = nl80211_set_station,
9491 .policy = nl80211_policy,
9492 .flags = GENL_ADMIN_PERM,
9493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9494 NL80211_FLAG_NEED_RTNL,
9497 .cmd = NL80211_CMD_NEW_STATION,
9498 .doit = nl80211_new_station,
9499 .policy = nl80211_policy,
9500 .flags = GENL_ADMIN_PERM,
9501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9502 NL80211_FLAG_NEED_RTNL,
9505 .cmd = NL80211_CMD_DEL_STATION,
9506 .doit = nl80211_del_station,
9507 .policy = nl80211_policy,
9508 .flags = GENL_ADMIN_PERM,
9509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9510 NL80211_FLAG_NEED_RTNL,
9513 .cmd = NL80211_CMD_GET_MPATH,
9514 .doit = nl80211_get_mpath,
9515 .dumpit = nl80211_dump_mpath,
9516 .policy = nl80211_policy,
9517 .flags = GENL_ADMIN_PERM,
9518 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9519 NL80211_FLAG_NEED_RTNL,
9522 .cmd = NL80211_CMD_SET_MPATH,
9523 .doit = nl80211_set_mpath,
9524 .policy = nl80211_policy,
9525 .flags = GENL_ADMIN_PERM,
9526 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9527 NL80211_FLAG_NEED_RTNL,
9530 .cmd = NL80211_CMD_NEW_MPATH,
9531 .doit = nl80211_new_mpath,
9532 .policy = nl80211_policy,
9533 .flags = GENL_ADMIN_PERM,
9534 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9535 NL80211_FLAG_NEED_RTNL,
9538 .cmd = NL80211_CMD_DEL_MPATH,
9539 .doit = nl80211_del_mpath,
9540 .policy = nl80211_policy,
9541 .flags = GENL_ADMIN_PERM,
9542 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9543 NL80211_FLAG_NEED_RTNL,
9546 .cmd = NL80211_CMD_SET_BSS,
9547 .doit = nl80211_set_bss,
9548 .policy = nl80211_policy,
9549 .flags = GENL_ADMIN_PERM,
9550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9551 NL80211_FLAG_NEED_RTNL,
9554 .cmd = NL80211_CMD_GET_REG,
9555 .doit = nl80211_get_reg,
9556 .policy = nl80211_policy,
9557 .internal_flags = NL80211_FLAG_NEED_RTNL,
9558 /* can be retrieved by unprivileged users */
9561 .cmd = NL80211_CMD_SET_REG,
9562 .doit = nl80211_set_reg,
9563 .policy = nl80211_policy,
9564 .flags = GENL_ADMIN_PERM,
9565 .internal_flags = NL80211_FLAG_NEED_RTNL,
9568 .cmd = NL80211_CMD_REQ_SET_REG,
9569 .doit = nl80211_req_set_reg,
9570 .policy = nl80211_policy,
9571 .flags = GENL_ADMIN_PERM,
9574 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9575 .doit = nl80211_get_mesh_config,
9576 .policy = nl80211_policy,
9577 /* can be retrieved by unprivileged users */
9578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9579 NL80211_FLAG_NEED_RTNL,
9582 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9583 .doit = nl80211_update_mesh_config,
9584 .policy = nl80211_policy,
9585 .flags = GENL_ADMIN_PERM,
9586 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9587 NL80211_FLAG_NEED_RTNL,
9590 .cmd = NL80211_CMD_TRIGGER_SCAN,
9591 .doit = nl80211_trigger_scan,
9592 .policy = nl80211_policy,
9593 .flags = GENL_ADMIN_PERM,
9594 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9595 NL80211_FLAG_NEED_RTNL,
9598 .cmd = NL80211_CMD_GET_SCAN,
9599 .policy = nl80211_policy,
9600 .dumpit = nl80211_dump_scan,
9603 .cmd = NL80211_CMD_START_SCHED_SCAN,
9604 .doit = nl80211_start_sched_scan,
9605 .policy = nl80211_policy,
9606 .flags = GENL_ADMIN_PERM,
9607 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9608 NL80211_FLAG_NEED_RTNL,
9611 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9612 .doit = nl80211_stop_sched_scan,
9613 .policy = nl80211_policy,
9614 .flags = GENL_ADMIN_PERM,
9615 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9616 NL80211_FLAG_NEED_RTNL,
9619 .cmd = NL80211_CMD_AUTHENTICATE,
9620 .doit = nl80211_authenticate,
9621 .policy = nl80211_policy,
9622 .flags = GENL_ADMIN_PERM,
9623 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9624 NL80211_FLAG_NEED_RTNL,
9627 .cmd = NL80211_CMD_ASSOCIATE,
9628 .doit = nl80211_associate,
9629 .policy = nl80211_policy,
9630 .flags = GENL_ADMIN_PERM,
9631 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9632 NL80211_FLAG_NEED_RTNL,
9635 .cmd = NL80211_CMD_DEAUTHENTICATE,
9636 .doit = nl80211_deauthenticate,
9637 .policy = nl80211_policy,
9638 .flags = GENL_ADMIN_PERM,
9639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9640 NL80211_FLAG_NEED_RTNL,
9643 .cmd = NL80211_CMD_DISASSOCIATE,
9644 .doit = nl80211_disassociate,
9645 .policy = nl80211_policy,
9646 .flags = GENL_ADMIN_PERM,
9647 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9648 NL80211_FLAG_NEED_RTNL,
9651 .cmd = NL80211_CMD_JOIN_IBSS,
9652 .doit = nl80211_join_ibss,
9653 .policy = nl80211_policy,
9654 .flags = GENL_ADMIN_PERM,
9655 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9656 NL80211_FLAG_NEED_RTNL,
9659 .cmd = NL80211_CMD_LEAVE_IBSS,
9660 .doit = nl80211_leave_ibss,
9661 .policy = nl80211_policy,
9662 .flags = GENL_ADMIN_PERM,
9663 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9664 NL80211_FLAG_NEED_RTNL,
9666 #ifdef CONFIG_NL80211_TESTMODE
9668 .cmd = NL80211_CMD_TESTMODE,
9669 .doit = nl80211_testmode_do,
9670 .dumpit = nl80211_testmode_dump,
9671 .policy = nl80211_policy,
9672 .flags = GENL_ADMIN_PERM,
9673 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9674 NL80211_FLAG_NEED_RTNL,
9678 .cmd = NL80211_CMD_CONNECT,
9679 .doit = nl80211_connect,
9680 .policy = nl80211_policy,
9681 .flags = GENL_ADMIN_PERM,
9682 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9683 NL80211_FLAG_NEED_RTNL,
9686 .cmd = NL80211_CMD_DISCONNECT,
9687 .doit = nl80211_disconnect,
9688 .policy = nl80211_policy,
9689 .flags = GENL_ADMIN_PERM,
9690 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9691 NL80211_FLAG_NEED_RTNL,
9694 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9695 .doit = nl80211_wiphy_netns,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
9698 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9699 NL80211_FLAG_NEED_RTNL,
9702 .cmd = NL80211_CMD_GET_SURVEY,
9703 .policy = nl80211_policy,
9704 .dumpit = nl80211_dump_survey,
9707 .cmd = NL80211_CMD_SET_PMKSA,
9708 .doit = nl80211_setdel_pmksa,
9709 .policy = nl80211_policy,
9710 .flags = GENL_ADMIN_PERM,
9711 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9712 NL80211_FLAG_NEED_RTNL,
9715 .cmd = NL80211_CMD_DEL_PMKSA,
9716 .doit = nl80211_setdel_pmksa,
9717 .policy = nl80211_policy,
9718 .flags = GENL_ADMIN_PERM,
9719 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9720 NL80211_FLAG_NEED_RTNL,
9723 .cmd = NL80211_CMD_FLUSH_PMKSA,
9724 .doit = nl80211_flush_pmksa,
9725 .policy = nl80211_policy,
9726 .flags = GENL_ADMIN_PERM,
9727 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9728 NL80211_FLAG_NEED_RTNL,
9731 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9732 .doit = nl80211_remain_on_channel,
9733 .policy = nl80211_policy,
9734 .flags = GENL_ADMIN_PERM,
9735 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9736 NL80211_FLAG_NEED_RTNL,
9739 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9740 .doit = nl80211_cancel_remain_on_channel,
9741 .policy = nl80211_policy,
9742 .flags = GENL_ADMIN_PERM,
9743 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9744 NL80211_FLAG_NEED_RTNL,
9747 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9748 .doit = nl80211_set_tx_bitrate_mask,
9749 .policy = nl80211_policy,
9750 .flags = GENL_ADMIN_PERM,
9751 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9752 NL80211_FLAG_NEED_RTNL,
9755 .cmd = NL80211_CMD_REGISTER_FRAME,
9756 .doit = nl80211_register_mgmt,
9757 .policy = nl80211_policy,
9758 .flags = GENL_ADMIN_PERM,
9759 .internal_flags = NL80211_FLAG_NEED_WDEV |
9760 NL80211_FLAG_NEED_RTNL,
9763 .cmd = NL80211_CMD_FRAME,
9764 .doit = nl80211_tx_mgmt,
9765 .policy = nl80211_policy,
9766 .flags = GENL_ADMIN_PERM,
9767 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9768 NL80211_FLAG_NEED_RTNL,
9771 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9772 .doit = nl80211_tx_mgmt_cancel_wait,
9773 .policy = nl80211_policy,
9774 .flags = GENL_ADMIN_PERM,
9775 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9776 NL80211_FLAG_NEED_RTNL,
9779 .cmd = NL80211_CMD_SET_POWER_SAVE,
9780 .doit = nl80211_set_power_save,
9781 .policy = nl80211_policy,
9782 .flags = GENL_ADMIN_PERM,
9783 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9784 NL80211_FLAG_NEED_RTNL,
9787 .cmd = NL80211_CMD_GET_POWER_SAVE,
9788 .doit = nl80211_get_power_save,
9789 .policy = nl80211_policy,
9790 /* can be retrieved by unprivileged users */
9791 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9792 NL80211_FLAG_NEED_RTNL,
9795 .cmd = NL80211_CMD_SET_CQM,
9796 .doit = nl80211_set_cqm,
9797 .policy = nl80211_policy,
9798 .flags = GENL_ADMIN_PERM,
9799 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9800 NL80211_FLAG_NEED_RTNL,
9803 .cmd = NL80211_CMD_SET_CHANNEL,
9804 .doit = nl80211_set_channel,
9805 .policy = nl80211_policy,
9806 .flags = GENL_ADMIN_PERM,
9807 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9808 NL80211_FLAG_NEED_RTNL,
9811 .cmd = NL80211_CMD_SET_WDS_PEER,
9812 .doit = nl80211_set_wds_peer,
9813 .policy = nl80211_policy,
9814 .flags = GENL_ADMIN_PERM,
9815 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9816 NL80211_FLAG_NEED_RTNL,
9819 .cmd = NL80211_CMD_JOIN_MESH,
9820 .doit = nl80211_join_mesh,
9821 .policy = nl80211_policy,
9822 .flags = GENL_ADMIN_PERM,
9823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9824 NL80211_FLAG_NEED_RTNL,
9827 .cmd = NL80211_CMD_LEAVE_MESH,
9828 .doit = nl80211_leave_mesh,
9829 .policy = nl80211_policy,
9830 .flags = GENL_ADMIN_PERM,
9831 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9832 NL80211_FLAG_NEED_RTNL,
9836 .cmd = NL80211_CMD_GET_WOWLAN,
9837 .doit = nl80211_get_wowlan,
9838 .policy = nl80211_policy,
9839 /* can be retrieved by unprivileged users */
9840 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9841 NL80211_FLAG_NEED_RTNL,
9844 .cmd = NL80211_CMD_SET_WOWLAN,
9845 .doit = nl80211_set_wowlan,
9846 .policy = nl80211_policy,
9847 .flags = GENL_ADMIN_PERM,
9848 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9849 NL80211_FLAG_NEED_RTNL,
9853 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9854 .doit = nl80211_set_rekey_data,
9855 .policy = nl80211_policy,
9856 .flags = GENL_ADMIN_PERM,
9857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9858 NL80211_FLAG_NEED_RTNL,
9861 .cmd = NL80211_CMD_TDLS_MGMT,
9862 .doit = nl80211_tdls_mgmt,
9863 .policy = nl80211_policy,
9864 .flags = GENL_ADMIN_PERM,
9865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9866 NL80211_FLAG_NEED_RTNL,
9869 .cmd = NL80211_CMD_TDLS_OPER,
9870 .doit = nl80211_tdls_oper,
9871 .policy = nl80211_policy,
9872 .flags = GENL_ADMIN_PERM,
9873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9874 NL80211_FLAG_NEED_RTNL,
9877 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9878 .doit = nl80211_register_unexpected_frame,
9879 .policy = nl80211_policy,
9880 .flags = GENL_ADMIN_PERM,
9881 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9882 NL80211_FLAG_NEED_RTNL,
9885 .cmd = NL80211_CMD_PROBE_CLIENT,
9886 .doit = nl80211_probe_client,
9887 .policy = nl80211_policy,
9888 .flags = GENL_ADMIN_PERM,
9889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9890 NL80211_FLAG_NEED_RTNL,
9893 .cmd = NL80211_CMD_REGISTER_BEACONS,
9894 .doit = nl80211_register_beacons,
9895 .policy = nl80211_policy,
9896 .flags = GENL_ADMIN_PERM,
9897 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9898 NL80211_FLAG_NEED_RTNL,
9901 .cmd = NL80211_CMD_SET_NOACK_MAP,
9902 .doit = nl80211_set_noack_map,
9903 .policy = nl80211_policy,
9904 .flags = GENL_ADMIN_PERM,
9905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9906 NL80211_FLAG_NEED_RTNL,
9909 .cmd = NL80211_CMD_START_P2P_DEVICE,
9910 .doit = nl80211_start_p2p_device,
9911 .policy = nl80211_policy,
9912 .flags = GENL_ADMIN_PERM,
9913 .internal_flags = NL80211_FLAG_NEED_WDEV |
9914 NL80211_FLAG_NEED_RTNL,
9917 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9918 .doit = nl80211_stop_p2p_device,
9919 .policy = nl80211_policy,
9920 .flags = GENL_ADMIN_PERM,
9921 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9922 NL80211_FLAG_NEED_RTNL,
9925 .cmd = NL80211_CMD_SET_MCAST_RATE,
9926 .doit = nl80211_set_mcast_rate,
9927 .policy = nl80211_policy,
9928 .flags = GENL_ADMIN_PERM,
9929 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9930 NL80211_FLAG_NEED_RTNL,
9933 .cmd = NL80211_CMD_SET_MAC_ACL,
9934 .doit = nl80211_set_mac_acl,
9935 .policy = nl80211_policy,
9936 .flags = GENL_ADMIN_PERM,
9937 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9938 NL80211_FLAG_NEED_RTNL,
9941 .cmd = NL80211_CMD_RADAR_DETECT,
9942 .doit = nl80211_start_radar_detection,
9943 .policy = nl80211_policy,
9944 .flags = GENL_ADMIN_PERM,
9945 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9946 NL80211_FLAG_NEED_RTNL,
9949 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9950 .doit = nl80211_get_protocol_features,
9951 .policy = nl80211_policy,
9954 .cmd = NL80211_CMD_UPDATE_FT_IES,
9955 .doit = nl80211_update_ft_ies,
9956 .policy = nl80211_policy,
9957 .flags = GENL_ADMIN_PERM,
9958 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9959 NL80211_FLAG_NEED_RTNL,
9962 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9963 .doit = nl80211_crit_protocol_start,
9964 .policy = nl80211_policy,
9965 .flags = GENL_ADMIN_PERM,
9966 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9967 NL80211_FLAG_NEED_RTNL,
9970 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9971 .doit = nl80211_crit_protocol_stop,
9972 .policy = nl80211_policy,
9973 .flags = GENL_ADMIN_PERM,
9974 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9975 NL80211_FLAG_NEED_RTNL,
9978 .cmd = NL80211_CMD_GET_COALESCE,
9979 .doit = nl80211_get_coalesce,
9980 .policy = nl80211_policy,
9981 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9982 NL80211_FLAG_NEED_RTNL,
9985 .cmd = NL80211_CMD_SET_COALESCE,
9986 .doit = nl80211_set_coalesce,
9987 .policy = nl80211_policy,
9988 .flags = GENL_ADMIN_PERM,
9989 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9990 NL80211_FLAG_NEED_RTNL,
9993 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9994 .doit = nl80211_channel_switch,
9995 .policy = nl80211_policy,
9996 .flags = GENL_ADMIN_PERM,
9997 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9998 NL80211_FLAG_NEED_RTNL,
10001 .cmd = NL80211_CMD_VENDOR,
10002 .doit = nl80211_vendor_cmd,
10003 .policy = nl80211_policy,
10004 .flags = GENL_ADMIN_PERM,
10005 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10006 NL80211_FLAG_NEED_RTNL,
10009 .cmd = NL80211_CMD_SET_QOS_MAP,
10010 .doit = nl80211_set_qos_map,
10011 .policy = nl80211_policy,
10012 .flags = GENL_ADMIN_PERM,
10013 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10014 NL80211_FLAG_NEED_RTNL,
10018 /* notification functions */
10020 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
10022 struct sk_buff *msg;
10023 struct nl80211_dump_wiphy_state state = {};
10025 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10029 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
10034 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10035 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10038 static int nl80211_add_scan_req(struct sk_buff *msg,
10039 struct cfg80211_registered_device *rdev)
10041 struct cfg80211_scan_request *req = rdev->scan_req;
10042 struct nlattr *nest;
10048 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10050 goto nla_put_failure;
10051 for (i = 0; i < req->n_ssids; i++) {
10052 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10053 goto nla_put_failure;
10055 nla_nest_end(msg, nest);
10057 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10059 goto nla_put_failure;
10060 for (i = 0; i < req->n_channels; i++) {
10061 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10062 goto nla_put_failure;
10064 nla_nest_end(msg, nest);
10067 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10068 goto nla_put_failure;
10071 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10072 goto nla_put_failure;
10079 static int nl80211_send_scan_msg(struct sk_buff *msg,
10080 struct cfg80211_registered_device *rdev,
10081 struct wireless_dev *wdev,
10082 u32 portid, u32 seq, int flags,
10087 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10091 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10092 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10093 wdev->netdev->ifindex)) ||
10094 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10095 goto nla_put_failure;
10097 /* ignore errors and send incomplete event anyway */
10098 nl80211_add_scan_req(msg, rdev);
10100 return genlmsg_end(msg, hdr);
10103 genlmsg_cancel(msg, hdr);
10108 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10109 struct cfg80211_registered_device *rdev,
10110 struct net_device *netdev,
10111 u32 portid, u32 seq, int flags, u32 cmd)
10115 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10119 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10120 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10121 goto nla_put_failure;
10123 return genlmsg_end(msg, hdr);
10126 genlmsg_cancel(msg, hdr);
10130 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10131 struct wireless_dev *wdev)
10133 struct sk_buff *msg;
10135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10139 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10140 NL80211_CMD_TRIGGER_SCAN) < 0) {
10145 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10146 NL80211_MCGRP_SCAN, GFP_KERNEL);
10149 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10150 struct wireless_dev *wdev, bool aborted)
10152 struct sk_buff *msg;
10154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10158 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10159 aborted ? NL80211_CMD_SCAN_ABORTED :
10160 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10168 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10169 struct sk_buff *msg)
10174 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10175 NL80211_MCGRP_SCAN, GFP_KERNEL);
10178 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10179 struct net_device *netdev)
10181 struct sk_buff *msg;
10183 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10187 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10188 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10193 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10194 NL80211_MCGRP_SCAN, GFP_KERNEL);
10197 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10198 struct net_device *netdev, u32 cmd)
10200 struct sk_buff *msg;
10202 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10206 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10211 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10212 NL80211_MCGRP_SCAN, GFP_KERNEL);
10216 * This can happen on global regulatory changes or device specific settings
10217 * based on custom world regulatory domains.
10219 void nl80211_send_reg_change_event(struct regulatory_request *request)
10221 struct sk_buff *msg;
10224 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10228 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10234 /* Userspace can always count this one always being set */
10235 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10236 goto nla_put_failure;
10238 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10239 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10240 NL80211_REGDOM_TYPE_WORLD))
10241 goto nla_put_failure;
10242 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10243 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10244 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10245 goto nla_put_failure;
10246 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10247 request->intersect) {
10248 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10249 NL80211_REGDOM_TYPE_INTERSECTION))
10250 goto nla_put_failure;
10252 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10253 NL80211_REGDOM_TYPE_COUNTRY) ||
10254 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10256 goto nla_put_failure;
10259 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10260 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10261 goto nla_put_failure;
10263 genlmsg_end(msg, hdr);
10266 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10267 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10273 genlmsg_cancel(msg, hdr);
10277 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10278 struct net_device *netdev,
10279 const u8 *buf, size_t len,
10280 enum nl80211_commands cmd, gfp_t gfp)
10282 struct sk_buff *msg;
10285 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10289 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10295 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10296 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10297 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10298 goto nla_put_failure;
10300 genlmsg_end(msg, hdr);
10302 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10303 NL80211_MCGRP_MLME, gfp);
10307 genlmsg_cancel(msg, hdr);
10311 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10312 struct net_device *netdev, const u8 *buf,
10313 size_t len, gfp_t gfp)
10315 nl80211_send_mlme_event(rdev, netdev, buf, len,
10316 NL80211_CMD_AUTHENTICATE, gfp);
10319 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10320 struct net_device *netdev, const u8 *buf,
10321 size_t len, gfp_t gfp)
10323 nl80211_send_mlme_event(rdev, netdev, buf, len,
10324 NL80211_CMD_ASSOCIATE, gfp);
10327 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10328 struct net_device *netdev, const u8 *buf,
10329 size_t len, gfp_t gfp)
10331 nl80211_send_mlme_event(rdev, netdev, buf, len,
10332 NL80211_CMD_DEAUTHENTICATE, gfp);
10335 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10336 struct net_device *netdev, const u8 *buf,
10337 size_t len, gfp_t gfp)
10339 nl80211_send_mlme_event(rdev, netdev, buf, len,
10340 NL80211_CMD_DISASSOCIATE, gfp);
10343 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10346 struct wireless_dev *wdev = dev->ieee80211_ptr;
10347 struct wiphy *wiphy = wdev->wiphy;
10348 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10349 const struct ieee80211_mgmt *mgmt = (void *)buf;
10352 if (WARN_ON(len < 2))
10355 if (ieee80211_is_deauth(mgmt->frame_control))
10356 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10358 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10360 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10361 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
10363 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10365 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10366 struct net_device *netdev, int cmd,
10367 const u8 *addr, gfp_t gfp)
10369 struct sk_buff *msg;
10372 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10376 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10382 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10383 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10384 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10385 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10386 goto nla_put_failure;
10388 genlmsg_end(msg, hdr);
10390 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10391 NL80211_MCGRP_MLME, gfp);
10395 genlmsg_cancel(msg, hdr);
10399 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10400 struct net_device *netdev, const u8 *addr,
10403 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10407 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10408 struct net_device *netdev, const u8 *addr,
10411 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10415 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10416 struct net_device *netdev, const u8 *bssid,
10417 const u8 *req_ie, size_t req_ie_len,
10418 const u8 *resp_ie, size_t resp_ie_len,
10419 u16 status, gfp_t gfp)
10421 struct sk_buff *msg;
10424 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10428 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10434 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10435 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10436 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10437 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10439 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10441 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10442 goto nla_put_failure;
10444 genlmsg_end(msg, hdr);
10446 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10447 NL80211_MCGRP_MLME, gfp);
10451 genlmsg_cancel(msg, hdr);
10456 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10457 struct net_device *netdev, const u8 *bssid,
10458 const u8 *req_ie, size_t req_ie_len,
10459 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10461 struct sk_buff *msg;
10464 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10468 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10474 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10475 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10476 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10478 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10480 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10481 goto nla_put_failure;
10483 genlmsg_end(msg, hdr);
10485 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10486 NL80211_MCGRP_MLME, gfp);
10490 genlmsg_cancel(msg, hdr);
10495 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10496 struct net_device *netdev, u16 reason,
10497 const u8 *ie, size_t ie_len, bool from_ap)
10499 struct sk_buff *msg;
10502 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10506 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10512 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10513 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10514 (from_ap && reason &&
10515 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10517 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10518 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10519 goto nla_put_failure;
10521 genlmsg_end(msg, hdr);
10523 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10524 NL80211_MCGRP_MLME, GFP_KERNEL);
10528 genlmsg_cancel(msg, hdr);
10533 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10534 struct net_device *netdev, const u8 *bssid,
10537 struct sk_buff *msg;
10540 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10544 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10550 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10551 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10552 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10553 goto nla_put_failure;
10555 genlmsg_end(msg, hdr);
10557 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10558 NL80211_MCGRP_MLME, gfp);
10562 genlmsg_cancel(msg, hdr);
10566 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10567 const u8* ie, u8 ie_len, gfp_t gfp)
10569 struct wireless_dev *wdev = dev->ieee80211_ptr;
10570 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10571 struct sk_buff *msg;
10574 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10577 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10579 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10583 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10589 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10590 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10591 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10593 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10594 goto nla_put_failure;
10596 genlmsg_end(msg, hdr);
10598 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10599 NL80211_MCGRP_MLME, gfp);
10603 genlmsg_cancel(msg, hdr);
10606 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10608 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10609 struct net_device *netdev, const u8 *addr,
10610 enum nl80211_key_type key_type, int key_id,
10611 const u8 *tsc, gfp_t gfp)
10613 struct sk_buff *msg;
10616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10620 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10626 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10627 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10628 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10629 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10631 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10632 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10633 goto nla_put_failure;
10635 genlmsg_end(msg, hdr);
10637 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10638 NL80211_MCGRP_MLME, gfp);
10642 genlmsg_cancel(msg, hdr);
10646 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10647 struct ieee80211_channel *channel_before,
10648 struct ieee80211_channel *channel_after)
10650 struct sk_buff *msg;
10652 struct nlattr *nl_freq;
10654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10658 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10665 * Since we are applying the beacon hint to a wiphy we know its
10666 * wiphy_idx is valid
10668 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10669 goto nla_put_failure;
10672 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10674 goto nla_put_failure;
10675 if (nl80211_msg_put_channel(msg, channel_before, false))
10676 goto nla_put_failure;
10677 nla_nest_end(msg, nl_freq);
10680 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10682 goto nla_put_failure;
10683 if (nl80211_msg_put_channel(msg, channel_after, false))
10684 goto nla_put_failure;
10685 nla_nest_end(msg, nl_freq);
10687 genlmsg_end(msg, hdr);
10690 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10691 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10697 genlmsg_cancel(msg, hdr);
10701 static void nl80211_send_remain_on_chan_event(
10702 int cmd, struct cfg80211_registered_device *rdev,
10703 struct wireless_dev *wdev, u64 cookie,
10704 struct ieee80211_channel *chan,
10705 unsigned int duration, gfp_t gfp)
10707 struct sk_buff *msg;
10710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10714 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10721 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10722 wdev->netdev->ifindex)) ||
10723 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10724 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
10725 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10726 NL80211_CHAN_NO_HT) ||
10727 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10728 goto nla_put_failure;
10730 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10731 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10732 goto nla_put_failure;
10734 genlmsg_end(msg, hdr);
10736 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10737 NL80211_MCGRP_MLME, gfp);
10741 genlmsg_cancel(msg, hdr);
10745 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10746 struct ieee80211_channel *chan,
10747 unsigned int duration, gfp_t gfp)
10749 struct wiphy *wiphy = wdev->wiphy;
10750 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10752 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
10753 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
10754 rdev, wdev, cookie, chan,
10757 EXPORT_SYMBOL(cfg80211_ready_on_channel);
10759 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10760 struct ieee80211_channel *chan,
10763 struct wiphy *wiphy = wdev->wiphy;
10764 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10766 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
10767 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10768 rdev, wdev, cookie, chan, 0, gfp);
10770 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
10772 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10773 struct station_info *sinfo, gfp_t gfp)
10775 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10776 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10777 struct sk_buff *msg;
10779 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10781 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10785 if (nl80211_send_station(msg, 0, 0, 0,
10786 rdev, dev, mac_addr, sinfo) < 0) {
10791 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10792 NL80211_MCGRP_MLME, gfp);
10794 EXPORT_SYMBOL(cfg80211_new_sta);
10796 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
10798 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10799 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10800 struct sk_buff *msg;
10803 trace_cfg80211_del_sta(dev, mac_addr);
10805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10809 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10815 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10816 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10817 goto nla_put_failure;
10819 genlmsg_end(msg, hdr);
10821 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10822 NL80211_MCGRP_MLME, gfp);
10826 genlmsg_cancel(msg, hdr);
10829 EXPORT_SYMBOL(cfg80211_del_sta);
10831 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10832 enum nl80211_connect_failed_reason reason,
10835 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10836 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10837 struct sk_buff *msg;
10840 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10844 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10850 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10851 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10852 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10853 goto nla_put_failure;
10855 genlmsg_end(msg, hdr);
10857 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10858 NL80211_MCGRP_MLME, gfp);
10862 genlmsg_cancel(msg, hdr);
10865 EXPORT_SYMBOL(cfg80211_conn_failed);
10867 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10868 const u8 *addr, gfp_t gfp)
10870 struct wireless_dev *wdev = dev->ieee80211_ptr;
10871 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10872 struct sk_buff *msg;
10874 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10879 msg = nlmsg_new(100, gfp);
10883 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10889 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10890 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10891 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10892 goto nla_put_failure;
10894 genlmsg_end(msg, hdr);
10895 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10899 genlmsg_cancel(msg, hdr);
10904 bool cfg80211_rx_spurious_frame(struct net_device *dev,
10905 const u8 *addr, gfp_t gfp)
10907 struct wireless_dev *wdev = dev->ieee80211_ptr;
10910 trace_cfg80211_rx_spurious_frame(dev, addr);
10912 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10913 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10914 trace_cfg80211_return_bool(false);
10917 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10919 trace_cfg80211_return_bool(ret);
10922 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
10924 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10925 const u8 *addr, gfp_t gfp)
10927 struct wireless_dev *wdev = dev->ieee80211_ptr;
10930 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10932 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10933 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10934 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10935 trace_cfg80211_return_bool(false);
10938 ret = __nl80211_unexpected_frame(dev,
10939 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10941 trace_cfg80211_return_bool(ret);
10944 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
10946 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
10947 struct wireless_dev *wdev, u32 nlportid,
10948 int freq, int sig_dbm,
10949 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
10951 struct net_device *netdev = wdev->netdev;
10952 struct sk_buff *msg;
10955 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10959 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10965 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10966 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10967 netdev->ifindex)) ||
10968 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10969 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10971 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10972 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10974 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
10975 goto nla_put_failure;
10977 genlmsg_end(msg, hdr);
10979 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10982 genlmsg_cancel(msg, hdr);
10987 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10988 const u8 *buf, size_t len, bool ack, gfp_t gfp)
10990 struct wiphy *wiphy = wdev->wiphy;
10991 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10992 struct net_device *netdev = wdev->netdev;
10993 struct sk_buff *msg;
10996 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10998 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11002 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
11008 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11009 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11010 netdev->ifindex)) ||
11011 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11012 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11013 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11014 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11015 goto nla_put_failure;
11017 genlmsg_end(msg, hdr);
11019 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11020 NL80211_MCGRP_MLME, gfp);
11024 genlmsg_cancel(msg, hdr);
11027 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11029 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11030 enum nl80211_cqm_rssi_threshold_event rssi_event,
11033 struct wireless_dev *wdev = dev->ieee80211_ptr;
11034 struct wiphy *wiphy = wdev->wiphy;
11035 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11036 struct sk_buff *msg;
11037 struct nlattr *pinfoattr;
11040 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11042 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11046 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11053 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11054 goto nla_put_failure;
11056 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11058 goto nla_put_failure;
11060 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11062 goto nla_put_failure;
11064 nla_nest_end(msg, pinfoattr);
11066 genlmsg_end(msg, hdr);
11068 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11069 NL80211_MCGRP_MLME, gfp);
11073 genlmsg_cancel(msg, hdr);
11076 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11078 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11079 struct net_device *netdev, const u8 *bssid,
11080 const u8 *replay_ctr, gfp_t gfp)
11082 struct sk_buff *msg;
11083 struct nlattr *rekey_attr;
11086 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11090 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11096 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11097 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11098 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11099 goto nla_put_failure;
11101 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11103 goto nla_put_failure;
11105 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11106 NL80211_REPLAY_CTR_LEN, replay_ctr))
11107 goto nla_put_failure;
11109 nla_nest_end(msg, rekey_attr);
11111 genlmsg_end(msg, hdr);
11113 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11114 NL80211_MCGRP_MLME, gfp);
11118 genlmsg_cancel(msg, hdr);
11122 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11123 const u8 *replay_ctr, gfp_t gfp)
11125 struct wireless_dev *wdev = dev->ieee80211_ptr;
11126 struct wiphy *wiphy = wdev->wiphy;
11127 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11129 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11130 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11132 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11135 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11136 struct net_device *netdev, int index,
11137 const u8 *bssid, bool preauth, gfp_t gfp)
11139 struct sk_buff *msg;
11140 struct nlattr *attr;
11143 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11147 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11153 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11154 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11155 goto nla_put_failure;
11157 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11159 goto nla_put_failure;
11161 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11162 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11164 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11165 goto nla_put_failure;
11167 nla_nest_end(msg, attr);
11169 genlmsg_end(msg, hdr);
11171 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11172 NL80211_MCGRP_MLME, gfp);
11176 genlmsg_cancel(msg, hdr);
11180 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11181 const u8 *bssid, bool preauth, gfp_t gfp)
11183 struct wireless_dev *wdev = dev->ieee80211_ptr;
11184 struct wiphy *wiphy = wdev->wiphy;
11185 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11187 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11188 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11190 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11192 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11193 struct net_device *netdev,
11194 struct cfg80211_chan_def *chandef,
11197 struct sk_buff *msg;
11200 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11204 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11210 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11211 goto nla_put_failure;
11213 if (nl80211_send_chandef(msg, chandef))
11214 goto nla_put_failure;
11216 genlmsg_end(msg, hdr);
11218 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11219 NL80211_MCGRP_MLME, gfp);
11223 genlmsg_cancel(msg, hdr);
11227 void cfg80211_ch_switch_notify(struct net_device *dev,
11228 struct cfg80211_chan_def *chandef)
11230 struct wireless_dev *wdev = dev->ieee80211_ptr;
11231 struct wiphy *wiphy = wdev->wiphy;
11232 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11234 ASSERT_WDEV_LOCK(wdev);
11236 trace_cfg80211_ch_switch_notify(dev, chandef);
11238 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11239 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11240 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11241 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11244 wdev->chandef = *chandef;
11245 wdev->preset_chandef = *chandef;
11246 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
11248 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11250 void cfg80211_cqm_txe_notify(struct net_device *dev,
11251 const u8 *peer, u32 num_packets,
11252 u32 rate, u32 intvl, gfp_t gfp)
11254 struct wireless_dev *wdev = dev->ieee80211_ptr;
11255 struct wiphy *wiphy = wdev->wiphy;
11256 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11257 struct sk_buff *msg;
11258 struct nlattr *pinfoattr;
11261 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11265 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11271 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11272 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11273 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11274 goto nla_put_failure;
11276 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11278 goto nla_put_failure;
11280 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11281 goto nla_put_failure;
11283 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11284 goto nla_put_failure;
11286 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11287 goto nla_put_failure;
11289 nla_nest_end(msg, pinfoattr);
11291 genlmsg_end(msg, hdr);
11293 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11294 NL80211_MCGRP_MLME, gfp);
11298 genlmsg_cancel(msg, hdr);
11301 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11304 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11305 const struct cfg80211_chan_def *chandef,
11306 enum nl80211_radar_event event,
11307 struct net_device *netdev, gfp_t gfp)
11309 struct sk_buff *msg;
11312 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11316 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11323 goto nla_put_failure;
11325 /* NOP and radar events don't need a netdev parameter */
11327 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11329 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11330 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11331 goto nla_put_failure;
11334 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11335 goto nla_put_failure;
11337 if (nl80211_send_chandef(msg, chandef))
11338 goto nla_put_failure;
11340 genlmsg_end(msg, hdr);
11342 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11343 NL80211_MCGRP_MLME, gfp);
11347 genlmsg_cancel(msg, hdr);
11351 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11352 const u8 *peer, u32 num_packets, gfp_t gfp)
11354 struct wireless_dev *wdev = dev->ieee80211_ptr;
11355 struct wiphy *wiphy = wdev->wiphy;
11356 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11357 struct sk_buff *msg;
11358 struct nlattr *pinfoattr;
11361 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11367 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11373 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11374 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11375 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11376 goto nla_put_failure;
11378 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11380 goto nla_put_failure;
11382 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11383 goto nla_put_failure;
11385 nla_nest_end(msg, pinfoattr);
11387 genlmsg_end(msg, hdr);
11389 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11390 NL80211_MCGRP_MLME, gfp);
11394 genlmsg_cancel(msg, hdr);
11397 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11399 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11400 u64 cookie, bool acked, gfp_t gfp)
11402 struct wireless_dev *wdev = dev->ieee80211_ptr;
11403 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11404 struct sk_buff *msg;
11407 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11409 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11414 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11420 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11421 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11422 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11423 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11424 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11425 goto nla_put_failure;
11427 genlmsg_end(msg, hdr);
11429 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11430 NL80211_MCGRP_MLME, gfp);
11434 genlmsg_cancel(msg, hdr);
11437 EXPORT_SYMBOL(cfg80211_probe_status);
11439 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11440 const u8 *frame, size_t len,
11441 int freq, int sig_dbm)
11443 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11444 struct sk_buff *msg;
11446 struct cfg80211_beacon_registration *reg;
11448 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11450 spin_lock_bh(&rdev->beacon_registrations_lock);
11451 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11452 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11454 spin_unlock_bh(&rdev->beacon_registrations_lock);
11458 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11460 goto nla_put_failure;
11462 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11464 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11466 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11467 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11468 goto nla_put_failure;
11470 genlmsg_end(msg, hdr);
11472 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11474 spin_unlock_bh(&rdev->beacon_registrations_lock);
11478 spin_unlock_bh(&rdev->beacon_registrations_lock);
11480 genlmsg_cancel(msg, hdr);
11483 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11486 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11487 struct cfg80211_wowlan_wakeup *wakeup,
11490 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11491 struct sk_buff *msg;
11495 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11498 size += wakeup->packet_present_len;
11500 msg = nlmsg_new(size, gfp);
11504 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11508 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11509 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11512 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11513 wdev->netdev->ifindex))
11517 struct nlattr *reasons;
11519 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11523 if (wakeup->disconnect &&
11524 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11526 if (wakeup->magic_pkt &&
11527 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11529 if (wakeup->gtk_rekey_failure &&
11530 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11532 if (wakeup->eap_identity_req &&
11533 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11535 if (wakeup->four_way_handshake &&
11536 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11538 if (wakeup->rfkill_release &&
11539 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11542 if (wakeup->pattern_idx >= 0 &&
11543 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11544 wakeup->pattern_idx))
11547 if (wakeup->tcp_match &&
11548 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11551 if (wakeup->tcp_connlost &&
11552 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11555 if (wakeup->tcp_nomoretokens &&
11557 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11560 if (wakeup->packet) {
11561 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11562 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11564 if (!wakeup->packet_80211) {
11566 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11568 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11571 if (wakeup->packet_len &&
11572 nla_put_u32(msg, len_attr, wakeup->packet_len))
11575 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11580 nla_nest_end(msg, reasons);
11583 genlmsg_end(msg, hdr);
11585 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11586 NL80211_MCGRP_MLME, gfp);
11592 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11595 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11596 enum nl80211_tdls_operation oper,
11597 u16 reason_code, gfp_t gfp)
11599 struct wireless_dev *wdev = dev->ieee80211_ptr;
11600 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11601 struct sk_buff *msg;
11604 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11607 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11611 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11617 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11618 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11619 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11620 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11621 (reason_code > 0 &&
11622 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11623 goto nla_put_failure;
11625 genlmsg_end(msg, hdr);
11627 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11628 NL80211_MCGRP_MLME, gfp);
11632 genlmsg_cancel(msg, hdr);
11635 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11637 static int nl80211_netlink_notify(struct notifier_block * nb,
11638 unsigned long state,
11641 struct netlink_notify *notify = _notify;
11642 struct cfg80211_registered_device *rdev;
11643 struct wireless_dev *wdev;
11644 struct cfg80211_beacon_registration *reg, *tmp;
11646 if (state != NETLINK_URELEASE)
11647 return NOTIFY_DONE;
11651 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11652 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
11653 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11655 spin_lock_bh(&rdev->beacon_registrations_lock);
11656 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11658 if (reg->nlportid == notify->portid) {
11659 list_del(®->list);
11664 spin_unlock_bh(&rdev->beacon_registrations_lock);
11669 return NOTIFY_DONE;
11672 static struct notifier_block nl80211_netlink_notifier = {
11673 .notifier_call = nl80211_netlink_notify,
11676 void cfg80211_ft_event(struct net_device *netdev,
11677 struct cfg80211_ft_event_params *ft_event)
11679 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11680 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11681 struct sk_buff *msg;
11684 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11686 if (!ft_event->target_ap)
11689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11693 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11697 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11698 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11699 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11702 if (ft_event->ies &&
11703 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11705 if (ft_event->ric_ies &&
11706 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11707 ft_event->ric_ies))
11710 genlmsg_end(msg, hdr);
11712 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11713 NL80211_MCGRP_MLME, GFP_KERNEL);
11718 EXPORT_SYMBOL(cfg80211_ft_event);
11720 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11722 struct cfg80211_registered_device *rdev;
11723 struct sk_buff *msg;
11727 rdev = wiphy_to_dev(wdev->wiphy);
11728 if (!rdev->crit_proto_nlportid)
11731 nlportid = rdev->crit_proto_nlportid;
11732 rdev->crit_proto_nlportid = 0;
11734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11738 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11740 goto nla_put_failure;
11742 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11743 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11744 goto nla_put_failure;
11746 genlmsg_end(msg, hdr);
11748 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11753 genlmsg_cancel(msg, hdr);
11757 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11759 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11761 struct wiphy *wiphy = wdev->wiphy;
11762 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11763 struct sk_buff *msg;
11766 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11770 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11774 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11775 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11776 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11779 genlmsg_end(msg, hdr);
11781 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11782 NL80211_MCGRP_MLME, GFP_KERNEL);
11788 /* initialisation/exit functions */
11790 int nl80211_init(void)
11794 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11799 err = netlink_register_notifier(&nl80211_netlink_notifier);
11805 genl_unregister_family(&nl80211_fam);
11809 void nl80211_exit(void)
11811 netlink_unregister_notifier(&nl80211_netlink_notifier);
11812 genl_unregister_family(&nl80211_fam);