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 },
389 /* policy for the key attributes */
390 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
391 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
392 [NL80211_KEY_IDX] = { .type = NLA_U8 },
393 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
394 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
395 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
396 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
397 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
398 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
401 /* policy for the key default flags */
402 static const struct nla_policy
403 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
404 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
405 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
408 /* policy for WoWLAN attributes */
409 static const struct nla_policy
410 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
411 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
413 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
415 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
422 static const struct nla_policy
423 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
424 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
425 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
426 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
427 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
428 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
429 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
430 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
431 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
434 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
436 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
438 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
441 /* policy for coalesce rule attributes */
442 static const struct nla_policy
443 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
444 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
445 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
446 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
449 /* policy for GTK rekey offload attributes */
450 static const struct nla_policy
451 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
452 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
453 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
454 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
457 static const struct nla_policy
458 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
459 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
460 .len = IEEE80211_MAX_SSID_LEN },
461 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
464 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
465 struct netlink_callback *cb,
466 struct cfg80211_registered_device **rdev,
467 struct wireless_dev **wdev)
474 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
475 nl80211_fam.attrbuf, nl80211_fam.maxattr,
480 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
481 nl80211_fam.attrbuf);
483 err = PTR_ERR(*wdev);
486 *rdev = wiphy_to_dev((*wdev)->wiphy);
487 /* 0 is the first index - add 1 to parse only once */
488 cb->args[0] = (*rdev)->wiphy_idx + 1;
489 cb->args[1] = (*wdev)->identifier;
491 /* subtract the 1 again here */
492 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
493 struct wireless_dev *tmp;
499 *rdev = wiphy_to_dev(wiphy);
502 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
503 if (tmp->identifier == cb->args[1]) {
521 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
527 static bool is_valid_ie_attr(const struct nlattr *attr)
535 pos = nla_data(attr);
556 /* message building helper */
557 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
560 /* since there is no private header just add the generic one */
561 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
564 static int nl80211_msg_put_channel(struct sk_buff *msg,
565 struct ieee80211_channel *chan,
568 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
570 goto nla_put_failure;
572 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
573 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
574 goto nla_put_failure;
575 if (chan->flags & IEEE80211_CHAN_NO_IR) {
576 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
577 goto nla_put_failure;
578 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
579 goto nla_put_failure;
581 if (chan->flags & IEEE80211_CHAN_RADAR) {
582 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
583 goto nla_put_failure;
587 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
589 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
591 goto nla_put_failure;
592 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
594 goto nla_put_failure;
599 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
600 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
601 goto nla_put_failure;
602 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
603 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
604 goto nla_put_failure;
605 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
606 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
607 goto nla_put_failure;
608 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
609 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
610 goto nla_put_failure;
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
614 DBM_TO_MBM(chan->max_power)))
615 goto nla_put_failure;
623 /* netlink command implementations */
630 bool def_uni, def_multi;
633 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
635 struct nlattr *tb[NL80211_KEY_MAX + 1];
636 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
641 k->def = !!tb[NL80211_KEY_DEFAULT];
642 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
651 if (tb[NL80211_KEY_IDX])
652 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
654 if (tb[NL80211_KEY_DATA]) {
655 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
656 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
659 if (tb[NL80211_KEY_SEQ]) {
660 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
661 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
664 if (tb[NL80211_KEY_CIPHER])
665 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
667 if (tb[NL80211_KEY_TYPE]) {
668 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
669 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
673 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
674 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
675 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
676 tb[NL80211_KEY_DEFAULT_TYPES],
677 nl80211_key_default_policy);
681 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
682 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
688 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
690 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
691 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
692 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
695 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
696 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
697 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
700 if (info->attrs[NL80211_ATTR_KEY_IDX])
701 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
703 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
704 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
706 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
707 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
716 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
717 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
718 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
722 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
723 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
724 int err = nla_parse_nested(
725 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
726 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
727 nl80211_key_default_policy);
731 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
732 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
738 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
742 memset(k, 0, sizeof(*k));
746 if (info->attrs[NL80211_ATTR_KEY])
747 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
749 err = nl80211_parse_key_old(info, k);
754 if (k->def && k->defmgmt)
758 if (k->def_uni || !k->def_multi)
764 if (k->idx < 4 || k->idx > 5)
767 if (k->idx < 0 || k->idx > 3)
770 if (k->idx < 0 || k->idx > 5)
778 static struct cfg80211_cached_keys *
779 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
780 struct nlattr *keys, bool *no_ht)
782 struct key_parse parse;
784 struct cfg80211_cached_keys *result;
785 int rem, err, def = 0;
787 result = kzalloc(sizeof(*result), GFP_KERNEL);
789 return ERR_PTR(-ENOMEM);
792 result->defmgmt = -1;
794 nla_for_each_nested(key, keys, rem) {
795 memset(&parse, 0, sizeof(parse));
798 err = nl80211_parse_key_new(key, &parse);
804 if (parse.idx < 0 || parse.idx > 4)
810 result->def = parse.idx;
811 if (!parse.def_uni || !parse.def_multi)
813 } else if (parse.defmgmt)
815 err = cfg80211_validate_key_settings(rdev, &parse.p,
816 parse.idx, false, NULL);
819 result->params[parse.idx].cipher = parse.p.cipher;
820 result->params[parse.idx].key_len = parse.p.key_len;
821 result->params[parse.idx].key = result->data[parse.idx];
822 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
824 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
825 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
837 static int nl80211_key_allowed(struct wireless_dev *wdev)
839 ASSERT_WDEV_LOCK(wdev);
841 switch (wdev->iftype) {
842 case NL80211_IFTYPE_AP:
843 case NL80211_IFTYPE_AP_VLAN:
844 case NL80211_IFTYPE_P2P_GO:
845 case NL80211_IFTYPE_MESH_POINT:
847 case NL80211_IFTYPE_ADHOC:
848 case NL80211_IFTYPE_STATION:
849 case NL80211_IFTYPE_P2P_CLIENT:
850 if (!wdev->current_bss)
860 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
863 struct ieee80211_channel *chan;
867 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
868 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
873 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
875 struct nlattr *nl_modes = nla_nest_start(msg, attr);
879 goto nla_put_failure;
883 if ((ifmodes & 1) && nla_put_flag(msg, i))
884 goto nla_put_failure;
889 nla_nest_end(msg, nl_modes);
896 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
900 struct nlattr *nl_combis;
903 nl_combis = nla_nest_start(msg,
904 NL80211_ATTR_INTERFACE_COMBINATIONS);
906 goto nla_put_failure;
908 for (i = 0; i < wiphy->n_iface_combinations; i++) {
909 const struct ieee80211_iface_combination *c;
910 struct nlattr *nl_combi, *nl_limits;
912 c = &wiphy->iface_combinations[i];
914 nl_combi = nla_nest_start(msg, i + 1);
916 goto nla_put_failure;
918 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
920 goto nla_put_failure;
922 for (j = 0; j < c->n_limits; j++) {
923 struct nlattr *nl_limit;
925 nl_limit = nla_nest_start(msg, j + 1);
927 goto nla_put_failure;
928 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
930 goto nla_put_failure;
931 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
933 goto nla_put_failure;
934 nla_nest_end(msg, nl_limit);
937 nla_nest_end(msg, nl_limits);
939 if (c->beacon_int_infra_match &&
940 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
941 goto nla_put_failure;
942 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
943 c->num_different_channels) ||
944 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
946 goto nla_put_failure;
948 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
949 c->radar_detect_widths))
950 goto nla_put_failure;
952 nla_nest_end(msg, nl_combi);
955 nla_nest_end(msg, nl_combis);
963 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
966 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
967 struct nlattr *nl_tcp;
972 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
976 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
977 tcp->data_payload_max))
980 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
981 tcp->data_payload_max))
984 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
987 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
988 sizeof(*tcp->tok), tcp->tok))
991 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
992 tcp->data_interval_max))
995 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
996 tcp->wake_payload_max))
999 nla_nest_end(msg, nl_tcp);
1003 static int nl80211_send_wowlan(struct sk_buff *msg,
1004 struct cfg80211_registered_device *dev,
1007 struct nlattr *nl_wowlan;
1009 if (!dev->wiphy.wowlan)
1012 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1016 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1017 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1018 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1019 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1020 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1021 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1022 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1023 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1024 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1025 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1026 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1027 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1028 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1029 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1030 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1031 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1034 if (dev->wiphy.wowlan->n_patterns) {
1035 struct nl80211_pattern_support pat = {
1036 .max_patterns = dev->wiphy.wowlan->n_patterns,
1037 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1038 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1039 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
1042 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1047 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1050 nla_nest_end(msg, nl_wowlan);
1056 static int nl80211_send_coalesce(struct sk_buff *msg,
1057 struct cfg80211_registered_device *dev)
1059 struct nl80211_coalesce_rule_support rule;
1061 if (!dev->wiphy.coalesce)
1064 rule.max_rules = dev->wiphy.coalesce->n_rules;
1065 rule.max_delay = dev->wiphy.coalesce->max_delay;
1066 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1067 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1068 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1069 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1071 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1077 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1078 struct ieee80211_supported_band *sband)
1080 struct nlattr *nl_rates, *nl_rate;
1081 struct ieee80211_rate *rate;
1085 if (sband->ht_cap.ht_supported &&
1086 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1087 sizeof(sband->ht_cap.mcs),
1088 &sband->ht_cap.mcs) ||
1089 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1090 sband->ht_cap.cap) ||
1091 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1092 sband->ht_cap.ampdu_factor) ||
1093 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1094 sband->ht_cap.ampdu_density)))
1098 if (sband->vht_cap.vht_supported &&
1099 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1100 sizeof(sband->vht_cap.vht_mcs),
1101 &sband->vht_cap.vht_mcs) ||
1102 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1103 sband->vht_cap.cap)))
1107 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1111 for (i = 0; i < sband->n_bitrates; i++) {
1112 nl_rate = nla_nest_start(msg, i);
1116 rate = &sband->bitrates[i];
1117 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1120 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1122 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1125 nla_nest_end(msg, nl_rate);
1128 nla_nest_end(msg, nl_rates);
1134 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1135 const struct ieee80211_txrx_stypes *mgmt_stypes)
1138 struct nlattr *nl_ftypes, *nl_ifs;
1139 enum nl80211_iftype ift;
1145 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1149 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1150 nl_ftypes = nla_nest_start(msg, ift);
1154 stypes = mgmt_stypes[ift].tx;
1157 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1158 (i << 4) | IEEE80211_FTYPE_MGMT))
1163 nla_nest_end(msg, nl_ftypes);
1166 nla_nest_end(msg, nl_ifs);
1168 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1172 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1173 nl_ftypes = nla_nest_start(msg, ift);
1177 stypes = mgmt_stypes[ift].rx;
1180 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1181 (i << 4) | IEEE80211_FTYPE_MGMT))
1186 nla_nest_end(msg, nl_ftypes);
1188 nla_nest_end(msg, nl_ifs);
1193 struct nl80211_dump_wiphy_state {
1196 long split_start, band_start, chan_start;
1200 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1201 struct sk_buff *msg, u32 portid, u32 seq,
1202 int flags, struct nl80211_dump_wiphy_state *state)
1205 struct nlattr *nl_bands, *nl_band;
1206 struct nlattr *nl_freqs, *nl_freq;
1207 struct nlattr *nl_cmds;
1208 enum ieee80211_band band;
1209 struct ieee80211_channel *chan;
1211 const struct ieee80211_txrx_stypes *mgmt_stypes =
1212 dev->wiphy.mgmt_stypes;
1215 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1219 if (WARN_ON(!state))
1222 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1223 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1224 wiphy_name(&dev->wiphy)) ||
1225 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1226 cfg80211_rdev_list_generation))
1227 goto nla_put_failure;
1229 switch (state->split_start) {
1231 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1232 dev->wiphy.retry_short) ||
1233 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1234 dev->wiphy.retry_long) ||
1235 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1236 dev->wiphy.frag_threshold) ||
1237 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1238 dev->wiphy.rts_threshold) ||
1239 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1240 dev->wiphy.coverage_class) ||
1241 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1242 dev->wiphy.max_scan_ssids) ||
1243 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1244 dev->wiphy.max_sched_scan_ssids) ||
1245 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1246 dev->wiphy.max_scan_ie_len) ||
1247 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1248 dev->wiphy.max_sched_scan_ie_len) ||
1249 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1250 dev->wiphy.max_match_sets))
1251 goto nla_put_failure;
1253 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1254 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1255 goto nla_put_failure;
1256 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1257 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1258 goto nla_put_failure;
1259 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1260 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1261 goto nla_put_failure;
1262 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1263 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1264 goto nla_put_failure;
1265 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1266 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1267 goto nla_put_failure;
1268 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1269 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1270 goto nla_put_failure;
1271 state->split_start++;
1275 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1276 sizeof(u32) * dev->wiphy.n_cipher_suites,
1277 dev->wiphy.cipher_suites))
1278 goto nla_put_failure;
1280 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1281 dev->wiphy.max_num_pmkids))
1282 goto nla_put_failure;
1284 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1285 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1286 goto nla_put_failure;
1288 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1289 dev->wiphy.available_antennas_tx) ||
1290 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1291 dev->wiphy.available_antennas_rx))
1292 goto nla_put_failure;
1294 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1295 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1296 dev->wiphy.probe_resp_offload))
1297 goto nla_put_failure;
1299 if ((dev->wiphy.available_antennas_tx ||
1300 dev->wiphy.available_antennas_rx) &&
1301 dev->ops->get_antenna) {
1302 u32 tx_ant = 0, rx_ant = 0;
1304 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1306 if (nla_put_u32(msg,
1307 NL80211_ATTR_WIPHY_ANTENNA_TX,
1310 NL80211_ATTR_WIPHY_ANTENNA_RX,
1312 goto nla_put_failure;
1316 state->split_start++;
1320 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1321 dev->wiphy.interface_modes))
1322 goto nla_put_failure;
1323 state->split_start++;
1327 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1329 goto nla_put_failure;
1331 for (band = state->band_start;
1332 band < IEEE80211_NUM_BANDS; band++) {
1333 struct ieee80211_supported_band *sband;
1335 sband = dev->wiphy.bands[band];
1340 nl_band = nla_nest_start(msg, band);
1342 goto nla_put_failure;
1344 switch (state->chan_start) {
1346 if (nl80211_send_band_rateinfo(msg, sband))
1347 goto nla_put_failure;
1348 state->chan_start++;
1352 /* add frequencies */
1353 nl_freqs = nla_nest_start(
1354 msg, NL80211_BAND_ATTR_FREQS);
1356 goto nla_put_failure;
1358 for (i = state->chan_start - 1;
1359 i < sband->n_channels;
1361 nl_freq = nla_nest_start(msg, i);
1363 goto nla_put_failure;
1365 chan = &sband->channels[i];
1367 if (nl80211_msg_put_channel(
1370 goto nla_put_failure;
1372 nla_nest_end(msg, nl_freq);
1376 if (i < sband->n_channels)
1377 state->chan_start = i + 2;
1379 state->chan_start = 0;
1380 nla_nest_end(msg, nl_freqs);
1383 nla_nest_end(msg, nl_band);
1386 /* start again here */
1387 if (state->chan_start)
1392 nla_nest_end(msg, nl_bands);
1394 if (band < IEEE80211_NUM_BANDS)
1395 state->band_start = band + 1;
1397 state->band_start = 0;
1399 /* if bands & channels are done, continue outside */
1400 if (state->band_start == 0 && state->chan_start == 0)
1401 state->split_start++;
1405 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1407 goto nla_put_failure;
1410 #define CMD(op, n) \
1412 if (dev->ops->op) { \
1414 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1415 goto nla_put_failure; \
1419 CMD(add_virtual_intf, NEW_INTERFACE);
1420 CMD(change_virtual_intf, SET_INTERFACE);
1421 CMD(add_key, NEW_KEY);
1422 CMD(start_ap, START_AP);
1423 CMD(add_station, NEW_STATION);
1424 CMD(add_mpath, NEW_MPATH);
1425 CMD(update_mesh_config, SET_MESH_CONFIG);
1426 CMD(change_bss, SET_BSS);
1427 CMD(auth, AUTHENTICATE);
1428 CMD(assoc, ASSOCIATE);
1429 CMD(deauth, DEAUTHENTICATE);
1430 CMD(disassoc, DISASSOCIATE);
1431 CMD(join_ibss, JOIN_IBSS);
1432 CMD(join_mesh, JOIN_MESH);
1433 CMD(set_pmksa, SET_PMKSA);
1434 CMD(del_pmksa, DEL_PMKSA);
1435 CMD(flush_pmksa, FLUSH_PMKSA);
1436 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1437 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1438 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1439 CMD(mgmt_tx, FRAME);
1440 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1441 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1443 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1444 goto nla_put_failure;
1446 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1447 dev->ops->join_mesh) {
1449 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1450 goto nla_put_failure;
1452 CMD(set_wds_peer, SET_WDS_PEER);
1453 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1454 CMD(tdls_mgmt, TDLS_MGMT);
1455 CMD(tdls_oper, TDLS_OPER);
1457 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1458 CMD(sched_scan_start, START_SCHED_SCAN);
1459 CMD(probe_client, PROBE_CLIENT);
1460 CMD(set_noack_map, SET_NOACK_MAP);
1461 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1463 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1464 goto nla_put_failure;
1466 CMD(start_p2p_device, START_P2P_DEVICE);
1467 CMD(set_mcast_rate, SET_MCAST_RATE);
1469 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1470 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1471 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1472 CMD(channel_switch, CHANNEL_SWITCH);
1474 CMD(set_qos_map, SET_QOS_MAP);
1476 #ifdef CONFIG_NL80211_TESTMODE
1477 CMD(testmode_cmd, TESTMODE);
1482 if (dev->ops->connect || dev->ops->auth) {
1484 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1485 goto nla_put_failure;
1488 if (dev->ops->disconnect || dev->ops->deauth) {
1490 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1491 goto nla_put_failure;
1494 nla_nest_end(msg, nl_cmds);
1495 state->split_start++;
1499 if (dev->ops->remain_on_channel &&
1500 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1502 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1503 dev->wiphy.max_remain_on_channel_duration))
1504 goto nla_put_failure;
1506 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1507 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1508 goto nla_put_failure;
1510 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1511 goto nla_put_failure;
1512 state->split_start++;
1517 if (nl80211_send_wowlan(msg, dev, state->split))
1518 goto nla_put_failure;
1519 state->split_start++;
1523 state->split_start++;
1526 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1527 dev->wiphy.software_iftypes))
1528 goto nla_put_failure;
1530 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1532 goto nla_put_failure;
1534 state->split_start++;
1538 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1539 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1540 dev->wiphy.ap_sme_capa))
1541 goto nla_put_failure;
1543 features = dev->wiphy.features;
1545 * We can only add the per-channel limit information if the
1546 * dump is split, otherwise it makes it too big. Therefore
1547 * only advertise it in that case.
1550 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1551 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1552 goto nla_put_failure;
1554 if (dev->wiphy.ht_capa_mod_mask &&
1555 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1556 sizeof(*dev->wiphy.ht_capa_mod_mask),
1557 dev->wiphy.ht_capa_mod_mask))
1558 goto nla_put_failure;
1560 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1561 dev->wiphy.max_acl_mac_addrs &&
1562 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1563 dev->wiphy.max_acl_mac_addrs))
1564 goto nla_put_failure;
1567 * Any information below this point is only available to
1568 * applications that can deal with it being split. This
1569 * helps ensure that newly added capabilities don't break
1570 * older tools by overrunning their buffers.
1572 * We still increment split_start so that in the split
1573 * case we'll continue with more data in the next round,
1574 * but break unconditionally so unsplit data stops here.
1576 state->split_start++;
1579 if (dev->wiphy.extended_capabilities &&
1580 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1581 dev->wiphy.extended_capabilities_len,
1582 dev->wiphy.extended_capabilities) ||
1583 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1584 dev->wiphy.extended_capabilities_len,
1585 dev->wiphy.extended_capabilities_mask)))
1586 goto nla_put_failure;
1588 if (dev->wiphy.vht_capa_mod_mask &&
1589 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1590 sizeof(*dev->wiphy.vht_capa_mod_mask),
1591 dev->wiphy.vht_capa_mod_mask))
1592 goto nla_put_failure;
1594 state->split_start++;
1597 if (nl80211_send_coalesce(msg, dev))
1598 goto nla_put_failure;
1600 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1601 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1602 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1603 goto nla_put_failure;
1605 if (dev->wiphy.max_ap_assoc_sta &&
1606 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1607 dev->wiphy.max_ap_assoc_sta))
1608 goto nla_put_failure;
1610 state->split_start++;
1613 if (dev->wiphy.n_vendor_commands) {
1614 const struct nl80211_vendor_cmd_info *info;
1615 struct nlattr *nested;
1617 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1619 goto nla_put_failure;
1621 for (i = 0; i < dev->wiphy.n_vendor_commands; i++) {
1622 info = &dev->wiphy.vendor_commands[i].info;
1623 if (nla_put(msg, i + 1, sizeof(*info), info))
1624 goto nla_put_failure;
1626 nla_nest_end(msg, nested);
1629 if (dev->wiphy.n_vendor_events) {
1630 const struct nl80211_vendor_cmd_info *info;
1631 struct nlattr *nested;
1633 nested = nla_nest_start(msg,
1634 NL80211_ATTR_VENDOR_EVENTS);
1636 goto nla_put_failure;
1638 for (i = 0; i < dev->wiphy.n_vendor_events; i++) {
1639 info = &dev->wiphy.vendor_events[i];
1640 if (nla_put(msg, i + 1, sizeof(*info), info))
1641 goto nla_put_failure;
1643 nla_nest_end(msg, nested);
1647 state->split_start = 0;
1650 return genlmsg_end(msg, hdr);
1653 genlmsg_cancel(msg, hdr);
1657 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1658 struct netlink_callback *cb,
1659 struct nl80211_dump_wiphy_state *state)
1661 struct nlattr **tb = nl80211_fam.attrbuf;
1662 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1663 tb, nl80211_fam.maxattr, nl80211_policy);
1664 /* ignore parse errors for backward compatibility */
1668 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1669 if (tb[NL80211_ATTR_WIPHY])
1670 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1671 if (tb[NL80211_ATTR_WDEV])
1672 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1673 if (tb[NL80211_ATTR_IFINDEX]) {
1674 struct net_device *netdev;
1675 struct cfg80211_registered_device *rdev;
1676 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1678 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1681 if (netdev->ieee80211_ptr) {
1682 rdev = wiphy_to_dev(
1683 netdev->ieee80211_ptr->wiphy);
1684 state->filter_wiphy = rdev->wiphy_idx;
1691 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1694 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1695 struct cfg80211_registered_device *dev;
1699 state = kzalloc(sizeof(*state), GFP_KERNEL);
1704 state->filter_wiphy = -1;
1705 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1711 cb->args[0] = (long)state;
1714 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1715 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1717 if (++idx <= state->start)
1719 if (state->filter_wiphy != -1 &&
1720 state->filter_wiphy != dev->wiphy_idx)
1722 /* attempt to fit multiple wiphy data chunks into the skb */
1724 ret = nl80211_send_wiphy(dev, skb,
1725 NETLINK_CB(cb->skb).portid,
1727 NLM_F_MULTI, state);
1730 * If sending the wiphy data didn't fit (ENOBUFS
1731 * or EMSGSIZE returned), this SKB is still
1732 * empty (so it's not too big because another
1733 * wiphy dataset is already in the skb) and
1734 * we've not tried to adjust the dump allocation
1735 * yet ... then adjust the alloc size to be
1736 * bigger, and return 1 but with the empty skb.
1737 * This results in an empty message being RX'ed
1738 * in userspace, but that is ignored.
1740 * We can then retry with the larger buffer.
1742 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1743 !skb->len && !state->split &&
1744 cb->min_dump_alloc < 4096) {
1745 cb->min_dump_alloc = 4096;
1746 state->split_start = 0;
1753 } while (state->split_start > 0);
1763 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1765 kfree((void *)cb->args[0]);
1769 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1771 struct sk_buff *msg;
1772 struct cfg80211_registered_device *dev = info->user_ptr[0];
1773 struct nl80211_dump_wiphy_state state = {};
1775 msg = nlmsg_new(4096, GFP_KERNEL);
1779 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1785 return genlmsg_reply(msg, info);
1788 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1789 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1790 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1791 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1792 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1793 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1796 static int parse_txq_params(struct nlattr *tb[],
1797 struct ieee80211_txq_params *txq_params)
1799 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1800 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1801 !tb[NL80211_TXQ_ATTR_AIFS])
1804 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1805 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1806 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1807 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1808 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1810 if (txq_params->ac >= NL80211_NUM_ACS)
1816 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1819 * You can only set the channel explicitly for WDS interfaces,
1820 * all others have their channel managed via their respective
1821 * "establish a connection" command (connect, join, ...)
1823 * For AP/GO and mesh mode, the channel can be set with the
1824 * channel userspace API, but is only stored and passed to the
1825 * low-level driver when the AP starts or the mesh is joined.
1826 * This is for backward compatibility, userspace can also give
1827 * the channel in the start-ap or join-mesh commands instead.
1829 * Monitors are special as they are normally slaved to
1830 * whatever else is going on, so they have their own special
1831 * operation to set the monitor channel if possible.
1834 wdev->iftype == NL80211_IFTYPE_AP ||
1835 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1836 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1837 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1840 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1841 struct genl_info *info,
1842 struct cfg80211_chan_def *chandef)
1846 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1849 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1851 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1852 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1853 chandef->center_freq1 = control_freq;
1854 chandef->center_freq2 = 0;
1856 /* Primary channel not allowed */
1857 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1860 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1861 enum nl80211_channel_type chantype;
1863 chantype = nla_get_u32(
1864 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1867 case NL80211_CHAN_NO_HT:
1868 case NL80211_CHAN_HT20:
1869 case NL80211_CHAN_HT40PLUS:
1870 case NL80211_CHAN_HT40MINUS:
1871 cfg80211_chandef_create(chandef, chandef->chan,
1877 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1879 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1880 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1881 chandef->center_freq1 =
1883 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1884 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1885 chandef->center_freq2 =
1887 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1890 if (!cfg80211_chandef_valid(chandef))
1893 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1894 IEEE80211_CHAN_DISABLED))
1897 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1898 chandef->width == NL80211_CHAN_WIDTH_10) &&
1899 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1905 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1906 struct wireless_dev *wdev,
1907 struct genl_info *info)
1909 struct cfg80211_chan_def chandef;
1911 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1914 iftype = wdev->iftype;
1916 if (!nl80211_can_set_dev_channel(wdev))
1919 result = nl80211_parse_chandef(rdev, info, &chandef);
1924 case NL80211_IFTYPE_AP:
1925 case NL80211_IFTYPE_P2P_GO:
1926 if (wdev->beacon_interval) {
1930 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1934 wdev->preset_chandef = chandef;
1937 case NL80211_IFTYPE_MESH_POINT:
1938 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1940 case NL80211_IFTYPE_MONITOR:
1941 result = cfg80211_set_monitor_channel(rdev, &chandef);
1950 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1952 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1953 struct net_device *netdev = info->user_ptr[1];
1955 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1958 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1961 struct net_device *dev = info->user_ptr[1];
1962 struct wireless_dev *wdev = dev->ieee80211_ptr;
1965 if (!info->attrs[NL80211_ATTR_MAC])
1968 if (netif_running(dev))
1971 if (!rdev->ops->set_wds_peer)
1974 if (wdev->iftype != NL80211_IFTYPE_WDS)
1977 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1978 return rdev_set_wds_peer(rdev, dev, bssid);
1982 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1984 struct cfg80211_registered_device *rdev;
1985 struct net_device *netdev = NULL;
1986 struct wireless_dev *wdev;
1987 int result = 0, rem_txq_params = 0;
1988 struct nlattr *nl_txq_params;
1990 u8 retry_short = 0, retry_long = 0;
1991 u32 frag_threshold = 0, rts_threshold = 0;
1992 u8 coverage_class = 0;
1997 * Try to find the wiphy and netdev. Normally this
1998 * function shouldn't need the netdev, but this is
1999 * done for backward compatibility -- previously
2000 * setting the channel was done per wiphy, but now
2001 * it is per netdev. Previous userland like hostapd
2002 * also passed a netdev to set_wiphy, so that it is
2003 * possible to let that go to the right netdev!
2006 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2007 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2009 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2010 if (netdev && netdev->ieee80211_ptr)
2011 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
2017 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2020 return PTR_ERR(rdev);
2025 wdev = netdev->ieee80211_ptr;
2028 * end workaround code, by now the rdev is available
2029 * and locked, and wdev may or may not be NULL.
2032 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2033 result = cfg80211_dev_rename(
2034 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2039 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2040 struct ieee80211_txq_params txq_params;
2041 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2043 if (!rdev->ops->set_txq_params)
2049 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2050 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2053 if (!netif_running(netdev))
2056 nla_for_each_nested(nl_txq_params,
2057 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2059 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2060 nla_data(nl_txq_params),
2061 nla_len(nl_txq_params),
2065 result = parse_txq_params(tb, &txq_params);
2069 result = rdev_set_txq_params(rdev, netdev,
2076 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2077 result = __nl80211_set_channel(rdev,
2078 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2084 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2085 struct wireless_dev *txp_wdev = wdev;
2086 enum nl80211_tx_power_setting type;
2089 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2092 if (!rdev->ops->set_tx_power)
2095 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2096 type = nla_get_u32(info->attrs[idx]);
2098 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2099 (type != NL80211_TX_POWER_AUTOMATIC))
2102 if (type != NL80211_TX_POWER_AUTOMATIC) {
2103 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2104 mbm = nla_get_u32(info->attrs[idx]);
2107 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2112 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2113 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2115 if ((!rdev->wiphy.available_antennas_tx &&
2116 !rdev->wiphy.available_antennas_rx) ||
2117 !rdev->ops->set_antenna)
2120 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2121 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2123 /* reject antenna configurations which don't match the
2124 * available antenna masks, except for the "all" mask */
2125 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2126 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2129 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2130 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2132 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2139 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2140 retry_short = nla_get_u8(
2141 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2142 if (retry_short == 0)
2145 changed |= WIPHY_PARAM_RETRY_SHORT;
2148 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2149 retry_long = nla_get_u8(
2150 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2151 if (retry_long == 0)
2154 changed |= WIPHY_PARAM_RETRY_LONG;
2157 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2158 frag_threshold = nla_get_u32(
2159 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2160 if (frag_threshold < 256)
2163 if (frag_threshold != (u32) -1) {
2165 * Fragments (apart from the last one) are required to
2166 * have even length. Make the fragmentation code
2167 * simpler by stripping LSB should someone try to use
2168 * odd threshold value.
2170 frag_threshold &= ~0x1;
2172 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2175 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2176 rts_threshold = nla_get_u32(
2177 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2178 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2181 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2182 coverage_class = nla_get_u8(
2183 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2184 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2188 u8 old_retry_short, old_retry_long;
2189 u32 old_frag_threshold, old_rts_threshold;
2190 u8 old_coverage_class;
2192 if (!rdev->ops->set_wiphy_params)
2195 old_retry_short = rdev->wiphy.retry_short;
2196 old_retry_long = rdev->wiphy.retry_long;
2197 old_frag_threshold = rdev->wiphy.frag_threshold;
2198 old_rts_threshold = rdev->wiphy.rts_threshold;
2199 old_coverage_class = rdev->wiphy.coverage_class;
2201 if (changed & WIPHY_PARAM_RETRY_SHORT)
2202 rdev->wiphy.retry_short = retry_short;
2203 if (changed & WIPHY_PARAM_RETRY_LONG)
2204 rdev->wiphy.retry_long = retry_long;
2205 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2206 rdev->wiphy.frag_threshold = frag_threshold;
2207 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2208 rdev->wiphy.rts_threshold = rts_threshold;
2209 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2210 rdev->wiphy.coverage_class = coverage_class;
2212 result = rdev_set_wiphy_params(rdev, changed);
2214 rdev->wiphy.retry_short = old_retry_short;
2215 rdev->wiphy.retry_long = old_retry_long;
2216 rdev->wiphy.frag_threshold = old_frag_threshold;
2217 rdev->wiphy.rts_threshold = old_rts_threshold;
2218 rdev->wiphy.coverage_class = old_coverage_class;
2224 static inline u64 wdev_id(struct wireless_dev *wdev)
2226 return (u64)wdev->identifier |
2227 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2230 static int nl80211_send_chandef(struct sk_buff *msg,
2231 const struct cfg80211_chan_def *chandef)
2233 WARN_ON(!cfg80211_chandef_valid(chandef));
2235 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2236 chandef->chan->center_freq))
2238 switch (chandef->width) {
2239 case NL80211_CHAN_WIDTH_20_NOHT:
2240 case NL80211_CHAN_WIDTH_20:
2241 case NL80211_CHAN_WIDTH_40:
2242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2243 cfg80211_get_chandef_type(chandef)))
2249 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2251 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2253 if (chandef->center_freq2 &&
2254 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2259 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2260 struct cfg80211_registered_device *rdev,
2261 struct wireless_dev *wdev)
2263 struct net_device *dev = wdev->netdev;
2266 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2271 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2272 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2273 goto nla_put_failure;
2275 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2276 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2277 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2278 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2279 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2280 rdev->devlist_generation ^
2281 (cfg80211_rdev_list_generation << 2)))
2282 goto nla_put_failure;
2284 if (rdev->ops->get_channel) {
2286 struct cfg80211_chan_def chandef;
2288 ret = rdev_get_channel(rdev, wdev, &chandef);
2290 if (nl80211_send_chandef(msg, &chandef))
2291 goto nla_put_failure;
2295 if (wdev->ssid_len) {
2296 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2297 goto nla_put_failure;
2300 return genlmsg_end(msg, hdr);
2303 genlmsg_cancel(msg, hdr);
2307 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2311 int wp_start = cb->args[0];
2312 int if_start = cb->args[1];
2313 struct cfg80211_registered_device *rdev;
2314 struct wireless_dev *wdev;
2317 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2318 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2320 if (wp_idx < wp_start) {
2326 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2327 if (if_idx < if_start) {
2331 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2332 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2344 cb->args[0] = wp_idx;
2345 cb->args[1] = if_idx;
2350 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2352 struct sk_buff *msg;
2353 struct cfg80211_registered_device *dev = info->user_ptr[0];
2354 struct wireless_dev *wdev = info->user_ptr[1];
2356 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2360 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2366 return genlmsg_reply(msg, info);
2369 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2370 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2371 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2372 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2373 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2374 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2375 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2378 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2380 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2388 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2389 nla, mntr_flags_policy))
2392 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2394 *mntrflags |= (1<<flag);
2399 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2400 struct net_device *netdev, u8 use_4addr,
2401 enum nl80211_iftype iftype)
2404 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2410 case NL80211_IFTYPE_AP_VLAN:
2411 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2414 case NL80211_IFTYPE_STATION:
2415 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2425 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2428 struct vif_params params;
2430 enum nl80211_iftype otype, ntype;
2431 struct net_device *dev = info->user_ptr[1];
2432 u32 _flags, *flags = NULL;
2433 bool change = false;
2435 memset(¶ms, 0, sizeof(params));
2437 otype = ntype = dev->ieee80211_ptr->iftype;
2439 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2440 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2443 if (ntype > NL80211_IFTYPE_MAX)
2447 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2448 struct wireless_dev *wdev = dev->ieee80211_ptr;
2450 if (ntype != NL80211_IFTYPE_MESH_POINT)
2452 if (netif_running(dev))
2456 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2457 IEEE80211_MAX_MESH_ID_LEN);
2458 wdev->mesh_id_up_len =
2459 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2460 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2461 wdev->mesh_id_up_len);
2465 if (info->attrs[NL80211_ATTR_4ADDR]) {
2466 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2468 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2472 params.use_4addr = -1;
2475 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2476 if (ntype != NL80211_IFTYPE_MONITOR)
2478 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2487 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2488 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2492 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2496 if (!err && params.use_4addr != -1)
2497 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2502 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2504 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2505 struct vif_params params;
2506 struct wireless_dev *wdev;
2507 struct sk_buff *msg;
2509 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2512 memset(¶ms, 0, sizeof(params));
2514 if (!info->attrs[NL80211_ATTR_IFNAME])
2517 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2518 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2519 if (type > NL80211_IFTYPE_MAX)
2523 if (!rdev->ops->add_virtual_intf ||
2524 !(rdev->wiphy.interface_modes & (1 << type)))
2527 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2528 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2530 if (!is_valid_ether_addr(params.macaddr))
2531 return -EADDRNOTAVAIL;
2534 if (info->attrs[NL80211_ATTR_4ADDR]) {
2535 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2536 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2541 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2545 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2546 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2549 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2550 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2553 wdev = rdev_add_virtual_intf(rdev,
2554 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2555 type, err ? NULL : &flags, ¶ms);
2558 return PTR_ERR(wdev);
2562 case NL80211_IFTYPE_MESH_POINT:
2563 if (!info->attrs[NL80211_ATTR_MESH_ID])
2566 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2567 IEEE80211_MAX_MESH_ID_LEN);
2568 wdev->mesh_id_up_len =
2569 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2570 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2571 wdev->mesh_id_up_len);
2574 case NL80211_IFTYPE_P2P_DEVICE:
2576 * P2P Device doesn't have a netdev, so doesn't go
2577 * through the netdev notifier and must be added here
2579 mutex_init(&wdev->mtx);
2580 INIT_LIST_HEAD(&wdev->event_list);
2581 spin_lock_init(&wdev->event_lock);
2582 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2583 spin_lock_init(&wdev->mgmt_registrations_lock);
2585 wdev->identifier = ++rdev->wdev_id;
2586 list_add_rcu(&wdev->list, &rdev->wdev_list);
2587 rdev->devlist_generation++;
2593 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2599 return genlmsg_reply(msg, info);
2602 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2604 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2605 struct wireless_dev *wdev = info->user_ptr[1];
2607 if (!rdev->ops->del_virtual_intf)
2611 * If we remove a wireless device without a netdev then clear
2612 * user_ptr[1] so that nl80211_post_doit won't dereference it
2613 * to check if it needs to do dev_put(). Otherwise it crashes
2614 * since the wdev has been freed, unlike with a netdev where
2615 * we need the dev_put() for the netdev to really be freed.
2618 info->user_ptr[1] = NULL;
2620 return rdev_del_virtual_intf(rdev, wdev);
2623 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2626 struct net_device *dev = info->user_ptr[1];
2629 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2632 if (!rdev->ops->set_noack_map)
2635 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2637 return rdev_set_noack_map(rdev, dev, noack_map);
2640 struct get_key_cookie {
2641 struct sk_buff *msg;
2646 static void get_key_callback(void *c, struct key_params *params)
2649 struct get_key_cookie *cookie = c;
2652 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2653 params->key_len, params->key)) ||
2655 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2656 params->seq_len, params->seq)) ||
2658 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2660 goto nla_put_failure;
2662 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2664 goto nla_put_failure;
2667 nla_put(cookie->msg, NL80211_KEY_DATA,
2668 params->key_len, params->key)) ||
2670 nla_put(cookie->msg, NL80211_KEY_SEQ,
2671 params->seq_len, params->seq)) ||
2673 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2675 goto nla_put_failure;
2677 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2678 goto nla_put_failure;
2680 nla_nest_end(cookie->msg, key);
2687 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2691 struct net_device *dev = info->user_ptr[1];
2693 const u8 *mac_addr = NULL;
2695 struct get_key_cookie cookie = {
2699 struct sk_buff *msg;
2701 if (info->attrs[NL80211_ATTR_KEY_IDX])
2702 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2707 if (info->attrs[NL80211_ATTR_MAC])
2708 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2710 pairwise = !!mac_addr;
2711 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2712 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2713 if (kt >= NUM_NL80211_KEYTYPES)
2715 if (kt != NL80211_KEYTYPE_GROUP &&
2716 kt != NL80211_KEYTYPE_PAIRWISE)
2718 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2721 if (!rdev->ops->get_key)
2724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2728 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2729 NL80211_CMD_NEW_KEY);
2731 goto nla_put_failure;
2734 cookie.idx = key_idx;
2736 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2737 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2738 goto nla_put_failure;
2740 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2741 goto nla_put_failure;
2743 if (pairwise && mac_addr &&
2744 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2747 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2754 goto nla_put_failure;
2756 genlmsg_end(msg, hdr);
2757 return genlmsg_reply(msg, info);
2766 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2769 struct key_parse key;
2771 struct net_device *dev = info->user_ptr[1];
2773 err = nl80211_parse_key(info, &key);
2780 /* only support setting default key */
2781 if (!key.def && !key.defmgmt)
2784 wdev_lock(dev->ieee80211_ptr);
2787 if (!rdev->ops->set_default_key) {
2792 err = nl80211_key_allowed(dev->ieee80211_ptr);
2796 err = rdev_set_default_key(rdev, dev, key.idx,
2797 key.def_uni, key.def_multi);
2802 #ifdef CONFIG_CFG80211_WEXT
2803 dev->ieee80211_ptr->wext.default_key = key.idx;
2806 if (key.def_uni || !key.def_multi) {
2811 if (!rdev->ops->set_default_mgmt_key) {
2816 err = nl80211_key_allowed(dev->ieee80211_ptr);
2820 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2824 #ifdef CONFIG_CFG80211_WEXT
2825 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2830 wdev_unlock(dev->ieee80211_ptr);
2835 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2837 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2839 struct net_device *dev = info->user_ptr[1];
2840 struct key_parse key;
2841 const u8 *mac_addr = NULL;
2843 err = nl80211_parse_key(info, &key);
2850 if (info->attrs[NL80211_ATTR_MAC])
2851 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2853 if (key.type == -1) {
2855 key.type = NL80211_KEYTYPE_PAIRWISE;
2857 key.type = NL80211_KEYTYPE_GROUP;
2861 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2862 key.type != NL80211_KEYTYPE_GROUP)
2865 if (!rdev->ops->add_key)
2868 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2869 key.type == NL80211_KEYTYPE_PAIRWISE,
2873 wdev_lock(dev->ieee80211_ptr);
2874 err = nl80211_key_allowed(dev->ieee80211_ptr);
2876 err = rdev_add_key(rdev, dev, key.idx,
2877 key.type == NL80211_KEYTYPE_PAIRWISE,
2879 wdev_unlock(dev->ieee80211_ptr);
2884 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2886 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2888 struct net_device *dev = info->user_ptr[1];
2889 u8 *mac_addr = NULL;
2890 struct key_parse key;
2892 err = nl80211_parse_key(info, &key);
2896 if (info->attrs[NL80211_ATTR_MAC])
2897 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2899 if (key.type == -1) {
2901 key.type = NL80211_KEYTYPE_PAIRWISE;
2903 key.type = NL80211_KEYTYPE_GROUP;
2907 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2908 key.type != NL80211_KEYTYPE_GROUP)
2911 if (!rdev->ops->del_key)
2914 wdev_lock(dev->ieee80211_ptr);
2915 err = nl80211_key_allowed(dev->ieee80211_ptr);
2917 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2918 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2922 err = rdev_del_key(rdev, dev, key.idx,
2923 key.type == NL80211_KEYTYPE_PAIRWISE,
2926 #ifdef CONFIG_CFG80211_WEXT
2928 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2929 dev->ieee80211_ptr->wext.default_key = -1;
2930 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2931 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2934 wdev_unlock(dev->ieee80211_ptr);
2939 /* This function returns an error or the number of nested attributes */
2940 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2942 struct nlattr *attr;
2943 int n_entries = 0, tmp;
2945 nla_for_each_nested(attr, nl_attr, tmp) {
2946 if (nla_len(attr) != ETH_ALEN)
2956 * This function parses ACL information and allocates memory for ACL data.
2957 * On successful return, the calling function is responsible to free the
2958 * ACL buffer returned by this function.
2960 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2961 struct genl_info *info)
2963 enum nl80211_acl_policy acl_policy;
2964 struct nlattr *attr;
2965 struct cfg80211_acl_data *acl;
2966 int i = 0, n_entries, tmp;
2968 if (!wiphy->max_acl_mac_addrs)
2969 return ERR_PTR(-EOPNOTSUPP);
2971 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2972 return ERR_PTR(-EINVAL);
2974 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2975 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2976 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2977 return ERR_PTR(-EINVAL);
2979 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2980 return ERR_PTR(-EINVAL);
2982 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2984 return ERR_PTR(n_entries);
2986 if (n_entries > wiphy->max_acl_mac_addrs)
2987 return ERR_PTR(-ENOTSUPP);
2989 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2992 return ERR_PTR(-ENOMEM);
2994 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2995 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2999 acl->n_acl_entries = n_entries;
3000 acl->acl_policy = acl_policy;
3005 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3007 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3008 struct net_device *dev = info->user_ptr[1];
3009 struct cfg80211_acl_data *acl;
3012 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3013 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3016 if (!dev->ieee80211_ptr->beacon_interval)
3019 acl = parse_acl_data(&rdev->wiphy, info);
3021 return PTR_ERR(acl);
3023 err = rdev_set_mac_acl(rdev, dev, acl);
3030 static int nl80211_parse_beacon(struct nlattr *attrs[],
3031 struct cfg80211_beacon_data *bcn)
3033 bool haveinfo = false;
3035 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3036 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3037 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3038 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3041 memset(bcn, 0, sizeof(*bcn));
3043 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3044 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3045 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3051 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3052 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3053 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3060 if (attrs[NL80211_ATTR_IE]) {
3061 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3062 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3065 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3066 bcn->proberesp_ies =
3067 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3068 bcn->proberesp_ies_len =
3069 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3072 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3073 bcn->assocresp_ies =
3074 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3075 bcn->assocresp_ies_len =
3076 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3079 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3080 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3081 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3087 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3088 struct cfg80211_ap_settings *params)
3090 struct wireless_dev *wdev;
3093 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3094 if (wdev->iftype != NL80211_IFTYPE_AP &&
3095 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3098 if (!wdev->preset_chandef.chan)
3101 params->chandef = wdev->preset_chandef;
3109 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3110 enum nl80211_auth_type auth_type,
3111 enum nl80211_commands cmd)
3113 if (auth_type > NL80211_AUTHTYPE_MAX)
3117 case NL80211_CMD_AUTHENTICATE:
3118 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3119 auth_type == NL80211_AUTHTYPE_SAE)
3122 case NL80211_CMD_CONNECT:
3123 case NL80211_CMD_START_AP:
3124 /* SAE not supported yet */
3125 if (auth_type == NL80211_AUTHTYPE_SAE)
3133 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3135 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3136 struct net_device *dev = info->user_ptr[1];
3137 struct wireless_dev *wdev = dev->ieee80211_ptr;
3138 struct cfg80211_ap_settings params;
3140 u8 radar_detect_width = 0;
3142 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3143 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3146 if (!rdev->ops->start_ap)
3149 if (wdev->beacon_interval)
3152 memset(¶ms, 0, sizeof(params));
3154 /* these are required for START_AP */
3155 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3156 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3157 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3160 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3164 params.beacon_interval =
3165 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3166 params.dtim_period =
3167 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3169 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3174 * In theory, some of these attributes should be required here
3175 * but since they were not used when the command was originally
3176 * added, keep them optional for old user space programs to let
3177 * them continue to work with drivers that do not need the
3178 * additional information -- drivers must check!
3180 if (info->attrs[NL80211_ATTR_SSID]) {
3181 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3183 nla_len(info->attrs[NL80211_ATTR_SSID]);
3184 if (params.ssid_len == 0 ||
3185 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3189 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3190 params.hidden_ssid = nla_get_u32(
3191 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3192 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3193 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3194 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3198 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3200 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3201 params.auth_type = nla_get_u32(
3202 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3203 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3204 NL80211_CMD_START_AP))
3207 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3209 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3210 NL80211_MAX_NR_CIPHER_SUITES);
3214 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3215 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3217 params.inactivity_timeout = nla_get_u16(
3218 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3221 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3222 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3224 params.p2p_ctwindow =
3225 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3226 if (params.p2p_ctwindow > 127)
3228 if (params.p2p_ctwindow != 0 &&
3229 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3233 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3236 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3238 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3241 params.p2p_opp_ps = tmp;
3242 if (params.p2p_opp_ps != 0 &&
3243 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3247 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3248 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3251 } else if (wdev->preset_chandef.chan) {
3252 params.chandef = wdev->preset_chandef;
3253 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3256 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3259 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3263 radar_detect_width = BIT(params.chandef.width);
3264 params.radar_required = true;
3267 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3268 params.chandef.chan,
3270 radar_detect_width);
3274 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3275 params.acl = parse_acl_data(&rdev->wiphy, info);
3276 if (IS_ERR(params.acl))
3277 return PTR_ERR(params.acl);
3281 err = rdev_start_ap(rdev, dev, ¶ms);
3283 wdev->preset_chandef = params.chandef;
3284 wdev->beacon_interval = params.beacon_interval;
3285 wdev->chandef = params.chandef;
3286 wdev->ssid_len = params.ssid_len;
3287 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3296 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3298 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3299 struct net_device *dev = info->user_ptr[1];
3300 struct wireless_dev *wdev = dev->ieee80211_ptr;
3301 struct cfg80211_beacon_data params;
3304 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3305 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3308 if (!rdev->ops->change_beacon)
3311 if (!wdev->beacon_interval)
3314 err = nl80211_parse_beacon(info->attrs, ¶ms);
3319 err = rdev_change_beacon(rdev, dev, ¶ms);
3325 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3327 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3328 struct net_device *dev = info->user_ptr[1];
3330 return cfg80211_stop_ap(rdev, dev);
3333 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3334 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3335 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3336 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3337 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3338 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3339 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3342 static int parse_station_flags(struct genl_info *info,
3343 enum nl80211_iftype iftype,
3344 struct station_parameters *params)
3346 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3351 * Try parsing the new attribute first so userspace
3352 * can specify both for older kernels.
3354 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3356 struct nl80211_sta_flag_update *sta_flags;
3358 sta_flags = nla_data(nla);
3359 params->sta_flags_mask = sta_flags->mask;
3360 params->sta_flags_set = sta_flags->set;
3361 params->sta_flags_set &= params->sta_flags_mask;
3362 if ((params->sta_flags_mask |
3363 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3368 /* if present, parse the old attribute */
3370 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3374 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3375 nla, sta_flags_policy))
3379 * Only allow certain flags for interface types so that
3380 * other attributes are silently ignored. Remember that
3381 * this is backward compatibility code with old userspace
3382 * and shouldn't be hit in other cases anyway.
3385 case NL80211_IFTYPE_AP:
3386 case NL80211_IFTYPE_AP_VLAN:
3387 case NL80211_IFTYPE_P2P_GO:
3388 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3389 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3390 BIT(NL80211_STA_FLAG_WME) |
3391 BIT(NL80211_STA_FLAG_MFP);
3393 case NL80211_IFTYPE_P2P_CLIENT:
3394 case NL80211_IFTYPE_STATION:
3395 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3396 BIT(NL80211_STA_FLAG_TDLS_PEER);
3398 case NL80211_IFTYPE_MESH_POINT:
3399 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3400 BIT(NL80211_STA_FLAG_MFP) |
3401 BIT(NL80211_STA_FLAG_AUTHORIZED);
3406 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3408 params->sta_flags_set |= (1<<flag);
3410 /* no longer support new API additions in old API */
3411 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3419 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3422 struct nlattr *rate;
3426 rate = nla_nest_start(msg, attr);
3430 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3431 bitrate = cfg80211_calculate_bitrate(info);
3432 /* report 16-bit bitrate only if we can */
3433 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3435 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3437 if (bitrate_compat > 0 &&
3438 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3441 if (info->flags & RATE_INFO_FLAGS_MCS) {
3442 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3444 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3445 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3447 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3448 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3450 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3451 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3453 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3455 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3456 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3458 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3459 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3461 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3462 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3464 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3465 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3467 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3468 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3472 nla_nest_end(msg, rate);
3476 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3485 attr = nla_nest_start(msg, id);
3489 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3490 if (!(mask & BIT(i)))
3493 if (nla_put_u8(msg, i, signal[i]))
3497 nla_nest_end(msg, attr);
3502 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3504 struct cfg80211_registered_device *rdev,
3505 struct net_device *dev,
3506 const u8 *mac_addr, struct station_info *sinfo)
3509 struct nlattr *sinfoattr, *bss_param;
3511 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3515 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3516 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3517 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3518 goto nla_put_failure;
3520 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3522 goto nla_put_failure;
3523 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3524 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3525 sinfo->connected_time))
3526 goto nla_put_failure;
3527 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3528 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3529 sinfo->inactive_time))
3530 goto nla_put_failure;
3531 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3532 STATION_INFO_RX_BYTES64)) &&
3533 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3534 (u32)sinfo->rx_bytes))
3535 goto nla_put_failure;
3536 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3537 STATION_INFO_TX_BYTES64)) &&
3538 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3539 (u32)sinfo->tx_bytes))
3540 goto nla_put_failure;
3541 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3542 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3544 goto nla_put_failure;
3545 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3546 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3548 goto nla_put_failure;
3549 if ((sinfo->filled & STATION_INFO_LLID) &&
3550 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3551 goto nla_put_failure;
3552 if ((sinfo->filled & STATION_INFO_PLID) &&
3553 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3554 goto nla_put_failure;
3555 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3556 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3557 sinfo->plink_state))
3558 goto nla_put_failure;
3559 switch (rdev->wiphy.signal_type) {
3560 case CFG80211_SIGNAL_TYPE_MBM:
3561 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3562 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3564 goto nla_put_failure;
3565 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3566 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3568 goto nla_put_failure;
3573 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3574 if (!nl80211_put_signal(msg, sinfo->chains,
3575 sinfo->chain_signal,
3576 NL80211_STA_INFO_CHAIN_SIGNAL))
3577 goto nla_put_failure;
3579 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3580 if (!nl80211_put_signal(msg, sinfo->chains,
3581 sinfo->chain_signal_avg,
3582 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3583 goto nla_put_failure;
3585 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3586 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3587 NL80211_STA_INFO_TX_BITRATE))
3588 goto nla_put_failure;
3590 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3591 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3592 NL80211_STA_INFO_RX_BITRATE))
3593 goto nla_put_failure;
3595 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3596 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3598 goto nla_put_failure;
3599 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3600 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3602 goto nla_put_failure;
3603 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3604 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3606 goto nla_put_failure;
3607 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3608 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3610 goto nla_put_failure;
3611 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3612 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3613 sinfo->beacon_loss_count))
3614 goto nla_put_failure;
3615 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3616 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3618 goto nla_put_failure;
3619 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3620 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3622 goto nla_put_failure;
3623 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3624 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3626 goto nla_put_failure;
3627 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3628 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3630 goto nla_put_failure;
3632 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3633 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3634 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3635 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3636 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3637 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3638 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3639 sinfo->bss_param.dtim_period) ||
3640 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3641 sinfo->bss_param.beacon_interval))
3642 goto nla_put_failure;
3644 nla_nest_end(msg, bss_param);
3646 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3647 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3648 sizeof(struct nl80211_sta_flag_update),
3650 goto nla_put_failure;
3651 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3652 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3654 goto nla_put_failure;
3655 nla_nest_end(msg, sinfoattr);
3657 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3658 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3659 sinfo->assoc_req_ies))
3660 goto nla_put_failure;
3662 return genlmsg_end(msg, hdr);
3665 genlmsg_cancel(msg, hdr);
3669 static int nl80211_dump_station(struct sk_buff *skb,
3670 struct netlink_callback *cb)
3672 struct station_info sinfo;
3673 struct cfg80211_registered_device *dev;
3674 struct wireless_dev *wdev;
3675 u8 mac_addr[ETH_ALEN];
3676 int sta_idx = cb->args[2];
3679 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3683 if (!wdev->netdev) {
3688 if (!dev->ops->dump_station) {
3694 memset(&sinfo, 0, sizeof(sinfo));
3695 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3702 if (nl80211_send_station(skb,
3703 NETLINK_CB(cb->skb).portid,
3704 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3705 dev, wdev->netdev, mac_addr,
3714 cb->args[2] = sta_idx;
3717 nl80211_finish_wdev_dump(dev);
3722 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3725 struct net_device *dev = info->user_ptr[1];
3726 struct station_info sinfo;
3727 struct sk_buff *msg;
3728 u8 *mac_addr = NULL;
3731 memset(&sinfo, 0, sizeof(sinfo));
3733 if (!info->attrs[NL80211_ATTR_MAC])
3736 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3738 if (!rdev->ops->get_station)
3741 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3745 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3749 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3750 rdev, dev, mac_addr, &sinfo) < 0) {
3755 return genlmsg_reply(msg, info);
3758 int cfg80211_check_station_change(struct wiphy *wiphy,
3759 struct station_parameters *params,
3760 enum cfg80211_station_type statype)
3762 if (params->listen_interval != -1)
3767 /* When you run into this, adjust the code below for the new flag */
3768 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3771 case CFG80211_STA_MESH_PEER_KERNEL:
3772 case CFG80211_STA_MESH_PEER_USER:
3774 * No ignoring the TDLS flag here -- the userspace mesh
3775 * code doesn't have the bug of including TDLS in the
3778 if (params->sta_flags_mask &
3779 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3780 BIT(NL80211_STA_FLAG_MFP) |
3781 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3784 case CFG80211_STA_TDLS_PEER_SETUP:
3785 case CFG80211_STA_TDLS_PEER_ACTIVE:
3786 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3788 /* ignore since it can't change */
3789 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3792 /* disallow mesh-specific things */
3793 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3795 if (params->local_pm)
3797 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3801 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3802 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3803 /* TDLS can't be set, ... */
3804 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3807 * ... but don't bother the driver with it. This works around
3808 * a hostapd/wpa_supplicant issue -- it always includes the
3809 * TLDS_PEER flag in the mask even for AP mode.
3811 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3814 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3815 /* reject other things that can't change */
3816 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3818 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3820 if (params->supported_rates)
3822 if (params->ext_capab || params->ht_capa || params->vht_capa)
3826 if (statype != CFG80211_STA_AP_CLIENT) {
3832 case CFG80211_STA_AP_MLME_CLIENT:
3833 /* Use this only for authorizing/unauthorizing a station */
3834 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3837 case CFG80211_STA_AP_CLIENT:
3838 /* accept only the listed bits */
3839 if (params->sta_flags_mask &
3840 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3841 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3842 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3843 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3844 BIT(NL80211_STA_FLAG_WME) |
3845 BIT(NL80211_STA_FLAG_MFP)))
3848 /* but authenticated/associated only if driver handles it */
3849 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3850 params->sta_flags_mask &
3851 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3852 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3855 case CFG80211_STA_IBSS:
3856 case CFG80211_STA_AP_STA:
3857 /* reject any changes other than AUTHORIZED */
3858 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3861 case CFG80211_STA_TDLS_PEER_SETUP:
3862 /* reject any changes other than AUTHORIZED or WME */
3863 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3864 BIT(NL80211_STA_FLAG_WME)))
3866 /* force (at least) rates when authorizing */
3867 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3868 !params->supported_rates)
3871 case CFG80211_STA_TDLS_PEER_ACTIVE:
3872 /* reject any changes */
3874 case CFG80211_STA_MESH_PEER_KERNEL:
3875 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3878 case CFG80211_STA_MESH_PEER_USER:
3879 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3886 EXPORT_SYMBOL(cfg80211_check_station_change);
3889 * Get vlan interface making sure it is running and on the right wiphy.
3891 static struct net_device *get_vlan(struct genl_info *info,
3892 struct cfg80211_registered_device *rdev)
3894 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3895 struct net_device *v;
3901 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3903 return ERR_PTR(-ENODEV);
3905 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3910 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3911 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3912 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3917 if (!netif_running(v)) {
3925 return ERR_PTR(ret);
3928 static const struct nla_policy
3929 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
3930 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3931 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3934 static int nl80211_parse_sta_wme(struct genl_info *info,
3935 struct station_parameters *params)
3937 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3941 /* parse WME attributes if present */
3942 if (!info->attrs[NL80211_ATTR_STA_WME])
3945 nla = info->attrs[NL80211_ATTR_STA_WME];
3946 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3947 nl80211_sta_wme_policy);
3951 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3952 params->uapsd_queues = nla_get_u8(
3953 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3954 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3957 if (tb[NL80211_STA_WME_MAX_SP])
3958 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3960 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3963 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3968 static int nl80211_parse_sta_channel_info(struct genl_info *info,
3969 struct station_parameters *params)
3971 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3972 params->supported_channels =
3973 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3974 params->supported_channels_len =
3975 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3977 * Need to include at least one (first channel, number of
3978 * channels) tuple for each subband, and must have proper
3979 * tuples for the rest of the data as well.
3981 if (params->supported_channels_len < 2)
3983 if (params->supported_channels_len % 2)
3987 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3988 params->supported_oper_classes =
3989 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3990 params->supported_oper_classes_len =
3991 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3993 * The value of the Length field of the Supported Operating
3994 * Classes element is between 2 and 253.
3996 if (params->supported_oper_classes_len < 2 ||
3997 params->supported_oper_classes_len > 253)
4003 static int nl80211_set_station_tdls(struct genl_info *info,
4004 struct station_parameters *params)
4007 /* Dummy STA entry gets updated once the peer capabilities are known */
4008 if (info->attrs[NL80211_ATTR_PEER_AID])
4009 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4010 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4012 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4013 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4015 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4017 err = nl80211_parse_sta_channel_info(info, params);
4021 return nl80211_parse_sta_wme(info, params);
4024 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4026 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4027 struct net_device *dev = info->user_ptr[1];
4028 struct station_parameters params;
4032 memset(¶ms, 0, sizeof(params));
4034 params.listen_interval = -1;
4036 if (!rdev->ops->change_station)
4039 if (info->attrs[NL80211_ATTR_STA_AID])
4042 if (!info->attrs[NL80211_ATTR_MAC])
4045 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4047 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4048 params.supported_rates =
4049 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4050 params.supported_rates_len =
4051 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4054 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4056 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4057 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4060 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4062 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4063 params.ext_capab_len =
4064 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4067 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4070 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4073 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4074 params.plink_action =
4075 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4076 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4080 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4081 params.plink_state =
4082 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4083 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4085 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4088 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4089 enum nl80211_mesh_power_mode pm = nla_get_u32(
4090 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4092 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4093 pm > NL80211_MESH_POWER_MAX)
4096 params.local_pm = pm;
4099 /* Include parameters for TDLS peer (will check later) */
4100 err = nl80211_set_station_tdls(info, ¶ms);
4104 params.vlan = get_vlan(info, rdev);
4105 if (IS_ERR(params.vlan))
4106 return PTR_ERR(params.vlan);
4108 switch (dev->ieee80211_ptr->iftype) {
4109 case NL80211_IFTYPE_AP:
4110 case NL80211_IFTYPE_AP_VLAN:
4111 case NL80211_IFTYPE_P2P_GO:
4112 case NL80211_IFTYPE_P2P_CLIENT:
4113 case NL80211_IFTYPE_STATION:
4114 case NL80211_IFTYPE_ADHOC:
4115 case NL80211_IFTYPE_MESH_POINT:
4122 /* driver will call cfg80211_check_station_change() */
4123 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4127 dev_put(params.vlan);
4132 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4136 struct net_device *dev = info->user_ptr[1];
4137 struct station_parameters params;
4138 u8 *mac_addr = NULL;
4140 memset(¶ms, 0, sizeof(params));
4142 if (!rdev->ops->add_station)
4145 if (!info->attrs[NL80211_ATTR_MAC])
4148 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4151 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4154 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4155 !info->attrs[NL80211_ATTR_PEER_AID])
4158 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4159 params.supported_rates =
4160 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4161 params.supported_rates_len =
4162 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4163 params.listen_interval =
4164 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4166 if (info->attrs[NL80211_ATTR_PEER_AID])
4167 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4169 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4170 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4173 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4175 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4176 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4179 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4181 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4182 params.ext_capab_len =
4183 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4186 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4188 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4190 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4192 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4194 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4195 params.opmode_notif_used = true;
4196 params.opmode_notif =
4197 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4200 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4201 params.plink_action =
4202 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4203 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4207 err = nl80211_parse_sta_channel_info(info, ¶ms);
4211 err = nl80211_parse_sta_wme(info, ¶ms);
4215 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4218 /* When you run into this, adjust the code below for the new flag */
4219 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4221 switch (dev->ieee80211_ptr->iftype) {
4222 case NL80211_IFTYPE_AP:
4223 case NL80211_IFTYPE_AP_VLAN:
4224 case NL80211_IFTYPE_P2P_GO:
4225 /* ignore WME attributes if iface/sta is not capable */
4226 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4227 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4228 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4230 /* TDLS peers cannot be added */
4231 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4232 info->attrs[NL80211_ATTR_PEER_AID])
4234 /* but don't bother the driver with it */
4235 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4237 /* allow authenticated/associated only if driver handles it */
4238 if (!(rdev->wiphy.features &
4239 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4240 params.sta_flags_mask &
4241 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4242 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4245 /* must be last in here for error handling */
4246 params.vlan = get_vlan(info, rdev);
4247 if (IS_ERR(params.vlan))
4248 return PTR_ERR(params.vlan);
4250 case NL80211_IFTYPE_MESH_POINT:
4251 /* ignore uAPSD data */
4252 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4254 /* associated is disallowed */
4255 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4257 /* TDLS peers cannot be added */
4258 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4259 info->attrs[NL80211_ATTR_PEER_AID])
4262 case NL80211_IFTYPE_STATION:
4263 case NL80211_IFTYPE_P2P_CLIENT:
4264 /* ignore uAPSD data */
4265 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4267 /* these are disallowed */
4268 if (params.sta_flags_mask &
4269 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4270 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4272 /* Only TDLS peers can be added */
4273 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4275 /* Can only add if TDLS ... */
4276 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4278 /* ... with external setup is supported */
4279 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4282 * Older wpa_supplicant versions always mark the TDLS peer
4283 * as authorized, but it shouldn't yet be.
4285 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4291 /* be aware of params.vlan when changing code here */
4293 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4296 dev_put(params.vlan);
4300 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4302 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4303 struct net_device *dev = info->user_ptr[1];
4304 u8 *mac_addr = NULL;
4306 if (info->attrs[NL80211_ATTR_MAC])
4307 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4309 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4310 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4311 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4312 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4315 if (!rdev->ops->del_station)
4318 return rdev_del_station(rdev, dev, mac_addr);
4321 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4322 int flags, struct net_device *dev,
4323 u8 *dst, u8 *next_hop,
4324 struct mpath_info *pinfo)
4327 struct nlattr *pinfoattr;
4329 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4333 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4334 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4335 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4336 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4337 goto nla_put_failure;
4339 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4341 goto nla_put_failure;
4342 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4343 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4345 goto nla_put_failure;
4346 if (((pinfo->filled & MPATH_INFO_SN) &&
4347 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4348 ((pinfo->filled & MPATH_INFO_METRIC) &&
4349 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4351 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4352 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4354 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4355 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4357 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4358 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4359 pinfo->discovery_timeout)) ||
4360 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4361 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4362 pinfo->discovery_retries)))
4363 goto nla_put_failure;
4365 nla_nest_end(msg, pinfoattr);
4367 return genlmsg_end(msg, hdr);
4370 genlmsg_cancel(msg, hdr);
4374 static int nl80211_dump_mpath(struct sk_buff *skb,
4375 struct netlink_callback *cb)
4377 struct mpath_info pinfo;
4378 struct cfg80211_registered_device *dev;
4379 struct wireless_dev *wdev;
4381 u8 next_hop[ETH_ALEN];
4382 int path_idx = cb->args[2];
4385 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4389 if (!dev->ops->dump_mpath) {
4394 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4400 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4407 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4408 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4409 wdev->netdev, dst, next_hop,
4418 cb->args[2] = path_idx;
4421 nl80211_finish_wdev_dump(dev);
4425 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4427 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4429 struct net_device *dev = info->user_ptr[1];
4430 struct mpath_info pinfo;
4431 struct sk_buff *msg;
4433 u8 next_hop[ETH_ALEN];
4435 memset(&pinfo, 0, sizeof(pinfo));
4437 if (!info->attrs[NL80211_ATTR_MAC])
4440 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4442 if (!rdev->ops->get_mpath)
4445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4448 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4452 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4456 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4457 dev, dst, next_hop, &pinfo) < 0) {
4462 return genlmsg_reply(msg, info);
4465 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4468 struct net_device *dev = info->user_ptr[1];
4470 u8 *next_hop = NULL;
4472 if (!info->attrs[NL80211_ATTR_MAC])
4475 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4478 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4479 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4481 if (!rdev->ops->change_mpath)
4484 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4487 return rdev_change_mpath(rdev, dev, dst, next_hop);
4490 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4492 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4493 struct net_device *dev = info->user_ptr[1];
4495 u8 *next_hop = NULL;
4497 if (!info->attrs[NL80211_ATTR_MAC])
4500 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4503 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4504 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4506 if (!rdev->ops->add_mpath)
4509 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4512 return rdev_add_mpath(rdev, dev, dst, next_hop);
4515 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4517 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4518 struct net_device *dev = info->user_ptr[1];
4521 if (info->attrs[NL80211_ATTR_MAC])
4522 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4524 if (!rdev->ops->del_mpath)
4527 return rdev_del_mpath(rdev, dev, dst);
4530 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4532 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4533 struct net_device *dev = info->user_ptr[1];
4534 struct wireless_dev *wdev = dev->ieee80211_ptr;
4535 struct bss_parameters params;
4538 memset(¶ms, 0, sizeof(params));
4539 /* default to not changing parameters */
4540 params.use_cts_prot = -1;
4541 params.use_short_preamble = -1;
4542 params.use_short_slot_time = -1;
4543 params.ap_isolate = -1;
4544 params.ht_opmode = -1;
4545 params.p2p_ctwindow = -1;
4546 params.p2p_opp_ps = -1;
4548 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4549 params.use_cts_prot =
4550 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4551 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4552 params.use_short_preamble =
4553 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4554 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4555 params.use_short_slot_time =
4556 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4557 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4558 params.basic_rates =
4559 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4560 params.basic_rates_len =
4561 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4563 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4564 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4565 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4567 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4569 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4570 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4572 params.p2p_ctwindow =
4573 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4574 if (params.p2p_ctwindow < 0)
4576 if (params.p2p_ctwindow != 0 &&
4577 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4581 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4586 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4589 params.p2p_opp_ps = tmp;
4590 if (params.p2p_opp_ps &&
4591 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4595 if (!rdev->ops->change_bss)
4598 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4599 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4603 err = rdev_change_bss(rdev, dev, ¶ms);
4609 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4610 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4611 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4612 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4613 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4614 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4615 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4618 static int parse_reg_rule(struct nlattr *tb[],
4619 struct ieee80211_reg_rule *reg_rule)
4621 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4622 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4624 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4626 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4628 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4630 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4633 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4635 freq_range->start_freq_khz =
4636 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4637 freq_range->end_freq_khz =
4638 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4639 if (tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4640 freq_range->max_bandwidth_khz =
4641 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4643 power_rule->max_eirp =
4644 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4646 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4647 power_rule->max_antenna_gain =
4648 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4653 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4657 enum nl80211_user_reg_hint_type user_reg_hint_type;
4660 * You should only get this when cfg80211 hasn't yet initialized
4661 * completely when built-in to the kernel right between the time
4662 * window between nl80211_init() and regulatory_init(), if that is
4665 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4666 return -EINPROGRESS;
4668 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4671 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4673 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4674 user_reg_hint_type =
4675 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4677 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4679 switch (user_reg_hint_type) {
4680 case NL80211_USER_REG_HINT_USER:
4681 case NL80211_USER_REG_HINT_CELL_BASE:
4687 r = regulatory_hint_user(data, user_reg_hint_type);
4692 static int nl80211_get_mesh_config(struct sk_buff *skb,
4693 struct genl_info *info)
4695 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4696 struct net_device *dev = info->user_ptr[1];
4697 struct wireless_dev *wdev = dev->ieee80211_ptr;
4698 struct mesh_config cur_params;
4701 struct nlattr *pinfoattr;
4702 struct sk_buff *msg;
4704 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4707 if (!rdev->ops->get_mesh_config)
4711 /* If not connected, get default parameters */
4712 if (!wdev->mesh_id_len)
4713 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4715 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4721 /* Draw up a netlink message to send back */
4722 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4725 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4726 NL80211_CMD_GET_MESH_CONFIG);
4729 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4731 goto nla_put_failure;
4732 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4733 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4734 cur_params.dot11MeshRetryTimeout) ||
4735 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4736 cur_params.dot11MeshConfirmTimeout) ||
4737 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4738 cur_params.dot11MeshHoldingTimeout) ||
4739 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4740 cur_params.dot11MeshMaxPeerLinks) ||
4741 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4742 cur_params.dot11MeshMaxRetries) ||
4743 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4744 cur_params.dot11MeshTTL) ||
4745 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4746 cur_params.element_ttl) ||
4747 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4748 cur_params.auto_open_plinks) ||
4749 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4750 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4751 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4752 cur_params.dot11MeshHWMPmaxPREQretries) ||
4753 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4754 cur_params.path_refresh_time) ||
4755 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4756 cur_params.min_discovery_timeout) ||
4757 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4758 cur_params.dot11MeshHWMPactivePathTimeout) ||
4759 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4760 cur_params.dot11MeshHWMPpreqMinInterval) ||
4761 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4762 cur_params.dot11MeshHWMPperrMinInterval) ||
4763 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4764 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4765 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4766 cur_params.dot11MeshHWMPRootMode) ||
4767 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4768 cur_params.dot11MeshHWMPRannInterval) ||
4769 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4770 cur_params.dot11MeshGateAnnouncementProtocol) ||
4771 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4772 cur_params.dot11MeshForwarding) ||
4773 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4774 cur_params.rssi_threshold) ||
4775 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4776 cur_params.ht_opmode) ||
4777 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4778 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4779 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4780 cur_params.dot11MeshHWMProotInterval) ||
4781 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4782 cur_params.dot11MeshHWMPconfirmationInterval) ||
4783 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4784 cur_params.power_mode) ||
4785 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4786 cur_params.dot11MeshAwakeWindowDuration) ||
4787 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4788 cur_params.plink_timeout))
4789 goto nla_put_failure;
4790 nla_nest_end(msg, pinfoattr);
4791 genlmsg_end(msg, hdr);
4792 return genlmsg_reply(msg, info);
4795 genlmsg_cancel(msg, hdr);
4801 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4802 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4803 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4804 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4805 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4806 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4807 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4808 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4809 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4810 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4811 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4812 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4813 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4814 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4815 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4816 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4817 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4818 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4819 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4820 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4821 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4822 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4823 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4824 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4825 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4826 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4827 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4828 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4829 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4832 static const struct nla_policy
4833 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4834 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4835 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4836 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4837 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4838 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4839 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4840 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4841 .len = IEEE80211_MAX_DATA_LEN },
4842 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4845 static int nl80211_parse_mesh_config(struct genl_info *info,
4846 struct mesh_config *cfg,
4849 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4852 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4855 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4857 cfg->param = fn(tb[attr]); \
4858 mask |= (1 << (attr - 1)); \
4863 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4865 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4866 info->attrs[NL80211_ATTR_MESH_CONFIG],
4867 nl80211_meshconf_params_policy))
4870 /* This makes sure that there aren't more than 32 mesh config
4871 * parameters (otherwise our bitfield scheme would not work.) */
4872 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4874 /* Fill in the params struct */
4875 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4876 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4878 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4879 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4881 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4882 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4884 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4885 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4887 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4888 mask, NL80211_MESHCONF_MAX_RETRIES,
4890 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4891 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4893 mask, NL80211_MESHCONF_ELEMENT_TTL,
4895 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4896 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4898 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4900 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4902 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4903 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4905 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4906 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4908 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4909 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4913 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4915 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4917 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4919 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4921 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4923 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4924 dot11MeshHWMPnetDiameterTraversalTime,
4926 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4929 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4932 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4935 dot11MeshGateAnnouncementProtocol, 0, 1,
4936 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4939 mask, NL80211_MESHCONF_FORWARDING,
4941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
4942 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4945 mask, NL80211_MESHCONF_HT_OPMODE,
4947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4949 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4951 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4952 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4954 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4955 dot11MeshHWMPconfirmationInterval,
4957 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4960 NL80211_MESH_POWER_ACTIVE,
4961 NL80211_MESH_POWER_MAX,
4962 mask, NL80211_MESHCONF_POWER_MODE,
4964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4966 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4968 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4975 #undef FILL_IN_MESH_PARAM_IF_SET
4978 static int nl80211_parse_mesh_setup(struct genl_info *info,
4979 struct mesh_setup *setup)
4981 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4982 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4984 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4986 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4987 info->attrs[NL80211_ATTR_MESH_SETUP],
4988 nl80211_mesh_setup_params_policy))
4991 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4992 setup->sync_method =
4993 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4994 IEEE80211_SYNC_METHOD_VENDOR :
4995 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4997 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4998 setup->path_sel_proto =
4999 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5000 IEEE80211_PATH_PROTOCOL_VENDOR :
5001 IEEE80211_PATH_PROTOCOL_HWMP;
5003 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5004 setup->path_metric =
5005 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5006 IEEE80211_PATH_METRIC_VENDOR :
5007 IEEE80211_PATH_METRIC_AIRTIME;
5010 if (tb[NL80211_MESH_SETUP_IE]) {
5011 struct nlattr *ieattr =
5012 tb[NL80211_MESH_SETUP_IE];
5013 if (!is_valid_ie_attr(ieattr))
5015 setup->ie = nla_data(ieattr);
5016 setup->ie_len = nla_len(ieattr);
5018 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5019 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5021 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5022 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5023 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5024 if (setup->is_secure)
5025 setup->user_mpm = true;
5027 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5028 if (!setup->user_mpm)
5031 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5037 static int nl80211_update_mesh_config(struct sk_buff *skb,
5038 struct genl_info *info)
5040 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5041 struct net_device *dev = info->user_ptr[1];
5042 struct wireless_dev *wdev = dev->ieee80211_ptr;
5043 struct mesh_config cfg;
5047 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5050 if (!rdev->ops->update_mesh_config)
5053 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5058 if (!wdev->mesh_id_len)
5062 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5069 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5071 const struct ieee80211_regdomain *regdom;
5072 struct sk_buff *msg;
5074 struct nlattr *nl_reg_rules;
5077 if (!cfg80211_regdomain)
5080 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5084 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5085 NL80211_CMD_GET_REG);
5089 if (reg_last_request_cell_base() &&
5090 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5091 NL80211_USER_REG_HINT_CELL_BASE))
5092 goto nla_put_failure;
5095 regdom = rcu_dereference(cfg80211_regdomain);
5097 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5098 (regdom->dfs_region &&
5099 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5100 goto nla_put_failure_rcu;
5102 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5104 goto nla_put_failure_rcu;
5106 for (i = 0; i < regdom->n_reg_rules; i++) {
5107 struct nlattr *nl_reg_rule;
5108 const struct ieee80211_reg_rule *reg_rule;
5109 const struct ieee80211_freq_range *freq_range;
5110 const struct ieee80211_power_rule *power_rule;
5111 unsigned int max_bandwidth_khz;
5113 reg_rule = ®dom->reg_rules[i];
5114 freq_range = ®_rule->freq_range;
5115 power_rule = ®_rule->power_rule;
5117 nl_reg_rule = nla_nest_start(msg, i);
5119 goto nla_put_failure_rcu;
5121 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5122 if (!max_bandwidth_khz)
5123 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5126 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5128 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5129 freq_range->start_freq_khz) ||
5130 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5131 freq_range->end_freq_khz) ||
5132 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5133 max_bandwidth_khz) ||
5134 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5135 power_rule->max_antenna_gain) ||
5136 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5137 power_rule->max_eirp))
5138 goto nla_put_failure_rcu;
5140 nla_nest_end(msg, nl_reg_rule);
5144 nla_nest_end(msg, nl_reg_rules);
5146 genlmsg_end(msg, hdr);
5147 return genlmsg_reply(msg, info);
5149 nla_put_failure_rcu:
5152 genlmsg_cancel(msg, hdr);
5158 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5160 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5161 struct nlattr *nl_reg_rule;
5162 char *alpha2 = NULL;
5163 int rem_reg_rules = 0, r = 0;
5164 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5165 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5166 struct ieee80211_regdomain *rd = NULL;
5168 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5171 if (!info->attrs[NL80211_ATTR_REG_RULES])
5174 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5176 if (info->attrs[NL80211_ATTR_DFS_REGION])
5177 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5179 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5182 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5186 if (!reg_is_valid_request(alpha2))
5189 size_of_regd = sizeof(struct ieee80211_regdomain) +
5190 num_rules * sizeof(struct ieee80211_reg_rule);
5192 rd = kzalloc(size_of_regd, GFP_KERNEL);
5196 rd->n_reg_rules = num_rules;
5197 rd->alpha2[0] = alpha2[0];
5198 rd->alpha2[1] = alpha2[1];
5201 * Disable DFS master mode if the DFS region was
5202 * not supported or known on this kernel.
5204 if (reg_supported_dfs_region(dfs_region))
5205 rd->dfs_region = dfs_region;
5207 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5209 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5210 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5214 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5220 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5227 /* set_regdom took ownership */
5235 static int validate_scan_freqs(struct nlattr *freqs)
5237 struct nlattr *attr1, *attr2;
5238 int n_channels = 0, tmp1, tmp2;
5240 nla_for_each_nested(attr1, freqs, tmp1) {
5243 * Some hardware has a limited channel list for
5244 * scanning, and it is pretty much nonsensical
5245 * to scan for a channel twice, so disallow that
5246 * and don't require drivers to check that the
5247 * channel list they get isn't longer than what
5248 * they can scan, as long as they can scan all
5249 * the channels they registered at once.
5251 nla_for_each_nested(attr2, freqs, tmp2)
5252 if (attr1 != attr2 &&
5253 nla_get_u32(attr1) == nla_get_u32(attr2))
5260 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5263 struct wireless_dev *wdev = info->user_ptr[1];
5264 struct cfg80211_scan_request *request;
5265 struct nlattr *attr;
5266 struct wiphy *wiphy;
5267 int err, tmp, n_ssids = 0, n_channels, i;
5270 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5273 wiphy = &rdev->wiphy;
5275 if (!rdev->ops->scan)
5278 if (rdev->scan_req || rdev->scan_msg) {
5283 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5284 n_channels = validate_scan_freqs(
5285 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5291 n_channels = ieee80211_get_num_supported_channels(wiphy);
5294 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5295 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5298 if (n_ssids > wiphy->max_scan_ssids) {
5303 if (info->attrs[NL80211_ATTR_IE])
5304 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5308 if (ie_len > wiphy->max_scan_ie_len) {
5313 request = kzalloc(sizeof(*request)
5314 + sizeof(*request->ssids) * n_ssids
5315 + sizeof(*request->channels) * n_channels
5316 + ie_len, GFP_KERNEL);
5323 request->ssids = (void *)&request->channels[n_channels];
5324 request->n_ssids = n_ssids;
5327 request->ie = (void *)(request->ssids + n_ssids);
5329 request->ie = (void *)(request->channels + n_channels);
5333 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5334 /* user specified, bail out if channel not found */
5335 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5336 struct ieee80211_channel *chan;
5338 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5345 /* ignore disabled channels */
5346 if (chan->flags & IEEE80211_CHAN_DISABLED)
5349 request->channels[i] = chan;
5353 enum ieee80211_band band;
5356 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5358 if (!wiphy->bands[band])
5360 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5361 struct ieee80211_channel *chan;
5363 chan = &wiphy->bands[band]->channels[j];
5365 if (chan->flags & IEEE80211_CHAN_DISABLED)
5368 request->channels[i] = chan;
5379 request->n_channels = i;
5382 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5383 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5384 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5388 request->ssids[i].ssid_len = nla_len(attr);
5389 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5394 if (info->attrs[NL80211_ATTR_IE]) {
5395 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5396 memcpy((void *)request->ie,
5397 nla_data(info->attrs[NL80211_ATTR_IE]),
5401 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5402 if (wiphy->bands[i])
5404 (1 << wiphy->bands[i]->n_bitrates) - 1;
5406 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5407 nla_for_each_nested(attr,
5408 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5410 enum ieee80211_band band = nla_type(attr);
5412 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5417 if (!wiphy->bands[band])
5420 err = ieee80211_get_ratemask(wiphy->bands[band],
5423 &request->rates[band]);
5429 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5430 request->flags = nla_get_u32(
5431 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5432 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5433 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5440 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5442 request->wdev = wdev;
5443 request->wiphy = &rdev->wiphy;
5444 request->scan_start = jiffies;
5446 rdev->scan_req = request;
5447 err = rdev_scan(rdev, request);
5450 nl80211_send_scan_start(rdev, wdev);
5452 dev_hold(wdev->netdev);
5455 rdev->scan_req = NULL;
5463 static int nl80211_start_sched_scan(struct sk_buff *skb,
5464 struct genl_info *info)
5466 struct cfg80211_sched_scan_request *request;
5467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5468 struct net_device *dev = info->user_ptr[1];
5469 struct nlattr *attr;
5470 struct wiphy *wiphy;
5471 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5473 enum ieee80211_band band;
5475 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5476 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5478 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5479 !rdev->ops->sched_scan_start)
5482 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5485 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5488 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5492 wiphy = &rdev->wiphy;
5494 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5495 n_channels = validate_scan_freqs(
5496 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5500 n_channels = ieee80211_get_num_supported_channels(wiphy);
5503 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5504 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5508 if (n_ssids > wiphy->max_sched_scan_ssids)
5512 * First, count the number of 'real' matchsets. Due to an issue with
5513 * the old implementation, matchsets containing only the RSSI attribute
5514 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5515 * RSSI for all matchsets, rather than their own matchset for reporting
5516 * all APs with a strong RSSI. This is needed to be compatible with
5517 * older userspace that treated a matchset with only the RSSI as the
5518 * global RSSI for all other matchsets - if there are other matchsets.
5520 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5521 nla_for_each_nested(attr,
5522 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5524 struct nlattr *rssi;
5526 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5527 nla_data(attr), nla_len(attr),
5528 nl80211_match_policy);
5531 /* add other standalone attributes here */
5532 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5536 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5538 default_match_rssi = nla_get_s32(rssi);
5542 /* However, if there's no other matchset, add the RSSI one */
5543 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5546 if (n_match_sets > wiphy->max_match_sets)
5549 if (info->attrs[NL80211_ATTR_IE])
5550 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5554 if (ie_len > wiphy->max_sched_scan_ie_len)
5557 if (rdev->sched_scan_req) {
5562 request = kzalloc(sizeof(*request)
5563 + sizeof(*request->ssids) * n_ssids
5564 + sizeof(*request->match_sets) * n_match_sets
5565 + sizeof(*request->channels) * n_channels
5566 + ie_len, GFP_KERNEL);
5573 request->ssids = (void *)&request->channels[n_channels];
5574 request->n_ssids = n_ssids;
5577 request->ie = (void *)(request->ssids + n_ssids);
5579 request->ie = (void *)(request->channels + n_channels);
5584 request->match_sets = (void *)(request->ie + ie_len);
5585 else if (request->ssids)
5586 request->match_sets =
5587 (void *)(request->ssids + n_ssids);
5589 request->match_sets =
5590 (void *)(request->channels + n_channels);
5592 request->n_match_sets = n_match_sets;
5595 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5596 /* user specified, bail out if channel not found */
5597 nla_for_each_nested(attr,
5598 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5600 struct ieee80211_channel *chan;
5602 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5609 /* ignore disabled channels */
5610 if (chan->flags & IEEE80211_CHAN_DISABLED)
5613 request->channels[i] = chan;
5618 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5620 if (!wiphy->bands[band])
5622 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5623 struct ieee80211_channel *chan;
5625 chan = &wiphy->bands[band]->channels[j];
5627 if (chan->flags & IEEE80211_CHAN_DISABLED)
5630 request->channels[i] = chan;
5641 request->n_channels = i;
5644 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5645 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5647 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5651 request->ssids[i].ssid_len = nla_len(attr);
5652 memcpy(request->ssids[i].ssid, nla_data(attr),
5659 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5660 nla_for_each_nested(attr,
5661 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5663 struct nlattr *ssid, *rssi;
5665 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5666 nla_data(attr), nla_len(attr),
5667 nl80211_match_policy);
5670 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5672 if (WARN_ON(i >= n_match_sets)) {
5673 /* this indicates a programming error,
5674 * the loop above should have verified
5681 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5685 memcpy(request->match_sets[i].ssid.ssid,
5686 nla_data(ssid), nla_len(ssid));
5687 request->match_sets[i].ssid.ssid_len =
5689 /* special attribute - old implemenation w/a */
5690 request->match_sets[i].rssi_thold =
5692 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5694 request->match_sets[i].rssi_thold =
5700 /* there was no other matchset, so the RSSI one is alone */
5702 request->match_sets[0].rssi_thold = default_match_rssi;
5704 request->min_rssi_thold = INT_MAX;
5705 for (i = 0; i < n_match_sets; i++)
5706 request->min_rssi_thold =
5707 min(request->match_sets[i].rssi_thold,
5708 request->min_rssi_thold);
5710 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
5713 if (info->attrs[NL80211_ATTR_IE]) {
5714 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5715 memcpy((void *)request->ie,
5716 nla_data(info->attrs[NL80211_ATTR_IE]),
5720 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5721 request->flags = nla_get_u32(
5722 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5723 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5724 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5731 request->wiphy = &rdev->wiphy;
5732 request->interval = interval;
5733 request->scan_start = jiffies;
5735 err = rdev_sched_scan_start(rdev, dev, request);
5737 rdev->sched_scan_req = request;
5738 nl80211_send_sched_scan(rdev, dev,
5739 NL80211_CMD_START_SCHED_SCAN);
5749 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5750 struct genl_info *info)
5752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5754 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5755 !rdev->ops->sched_scan_stop)
5758 return __cfg80211_stop_sched_scan(rdev, false);
5761 static int nl80211_start_radar_detection(struct sk_buff *skb,
5762 struct genl_info *info)
5764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5765 struct net_device *dev = info->user_ptr[1];
5766 struct wireless_dev *wdev = dev->ieee80211_ptr;
5767 struct cfg80211_chan_def chandef;
5768 enum nl80211_dfs_regions dfs_region;
5771 dfs_region = reg_get_dfs_region(wdev->wiphy);
5772 if (dfs_region == NL80211_DFS_UNSET)
5775 err = nl80211_parse_chandef(rdev, info, &chandef);
5779 if (netif_carrier_ok(dev))
5782 if (wdev->cac_started)
5785 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5792 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5795 if (!rdev->ops->start_radar_detection)
5798 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5799 chandef.chan, CHAN_MODE_SHARED,
5800 BIT(chandef.width));
5804 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5806 wdev->chandef = chandef;
5807 wdev->cac_started = true;
5808 wdev->cac_start_time = jiffies;
5813 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5815 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5816 struct net_device *dev = info->user_ptr[1];
5817 struct wireless_dev *wdev = dev->ieee80211_ptr;
5818 struct cfg80211_csa_settings params;
5819 /* csa_attrs is defined static to avoid waste of stack size - this
5820 * function is called under RTNL lock, so this should not be a problem.
5822 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5823 u8 radar_detect_width = 0;
5825 bool need_new_beacon = false;
5827 if (!rdev->ops->channel_switch ||
5828 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5831 switch (dev->ieee80211_ptr->iftype) {
5832 case NL80211_IFTYPE_AP:
5833 case NL80211_IFTYPE_P2P_GO:
5834 need_new_beacon = true;
5836 /* useless if AP is not running */
5837 if (!wdev->beacon_interval)
5840 case NL80211_IFTYPE_ADHOC:
5841 if (!wdev->ssid_len)
5844 case NL80211_IFTYPE_MESH_POINT:
5845 if (!wdev->mesh_id_len)
5852 memset(¶ms, 0, sizeof(params));
5854 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5855 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5858 /* only important for AP, IBSS and mesh create IEs internally */
5859 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5862 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5864 if (!need_new_beacon)
5867 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5871 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5872 info->attrs[NL80211_ATTR_CSA_IES],
5877 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5881 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5884 params.counter_offset_beacon =
5885 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5886 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5889 /* sanity check - counters should be the same */
5890 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5894 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5895 params.counter_offset_presp =
5896 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5897 if (params.counter_offset_presp >=
5898 params.beacon_csa.probe_resp_len)
5901 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5907 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
5911 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
5914 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5915 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5916 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
5917 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5922 radar_detect_width = BIT(params.chandef.width);
5923 params.radar_required = true;
5927 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5928 params.chandef.chan,
5930 radar_detect_width);
5934 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5935 params.block_tx = true;
5938 err = rdev_channel_switch(rdev, dev, ¶ms);
5944 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5946 struct cfg80211_registered_device *rdev,
5947 struct wireless_dev *wdev,
5948 struct cfg80211_internal_bss *intbss)
5950 struct cfg80211_bss *res = &intbss->pub;
5951 const struct cfg80211_bss_ies *ies;
5956 ASSERT_WDEV_LOCK(wdev);
5958 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5959 NL80211_CMD_NEW_SCAN_RESULTS);
5963 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5965 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5966 goto nla_put_failure;
5968 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5969 goto nla_put_failure;
5970 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5971 goto nla_put_failure;
5973 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5975 goto nla_put_failure;
5976 if ((!is_zero_ether_addr(res->bssid) &&
5977 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5978 goto nla_put_failure;
5981 ies = rcu_dereference(res->ies);
5983 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5984 goto fail_unlock_rcu;
5986 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5987 ies->len, ies->data))
5988 goto fail_unlock_rcu;
5990 ies = rcu_dereference(res->beacon_ies);
5992 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5993 goto fail_unlock_rcu;
5994 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5995 ies->len, ies->data))
5996 goto fail_unlock_rcu;
6000 if (res->beacon_interval &&
6001 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6002 goto nla_put_failure;
6003 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6004 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6005 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6006 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6007 jiffies_to_msecs(jiffies - intbss->ts)))
6008 goto nla_put_failure;
6010 switch (rdev->wiphy.signal_type) {
6011 case CFG80211_SIGNAL_TYPE_MBM:
6012 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6013 goto nla_put_failure;
6015 case CFG80211_SIGNAL_TYPE_UNSPEC:
6016 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6017 goto nla_put_failure;
6023 switch (wdev->iftype) {
6024 case NL80211_IFTYPE_P2P_CLIENT:
6025 case NL80211_IFTYPE_STATION:
6026 if (intbss == wdev->current_bss &&
6027 nla_put_u32(msg, NL80211_BSS_STATUS,
6028 NL80211_BSS_STATUS_ASSOCIATED))
6029 goto nla_put_failure;
6031 case NL80211_IFTYPE_ADHOC:
6032 if (intbss == wdev->current_bss &&
6033 nla_put_u32(msg, NL80211_BSS_STATUS,
6034 NL80211_BSS_STATUS_IBSS_JOINED))
6035 goto nla_put_failure;
6041 nla_nest_end(msg, bss);
6043 return genlmsg_end(msg, hdr);
6048 genlmsg_cancel(msg, hdr);
6052 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6054 struct cfg80211_registered_device *rdev;
6055 struct cfg80211_internal_bss *scan;
6056 struct wireless_dev *wdev;
6057 int start = cb->args[2], idx = 0;
6060 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6065 spin_lock_bh(&rdev->bss_lock);
6066 cfg80211_bss_expire(rdev);
6068 cb->seq = rdev->bss_generation;
6070 list_for_each_entry(scan, &rdev->bss_list, list) {
6073 if (nl80211_send_bss(skb, cb,
6074 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6075 rdev, wdev, scan) < 0) {
6081 spin_unlock_bh(&rdev->bss_lock);
6085 nl80211_finish_wdev_dump(rdev);
6090 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6091 int flags, struct net_device *dev,
6092 struct survey_info *survey)
6095 struct nlattr *infoattr;
6097 hdr = nl80211hdr_put(msg, portid, seq, flags,
6098 NL80211_CMD_NEW_SURVEY_RESULTS);
6102 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6103 goto nla_put_failure;
6105 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6107 goto nla_put_failure;
6109 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6110 survey->channel->center_freq))
6111 goto nla_put_failure;
6113 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6114 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6115 goto nla_put_failure;
6116 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6117 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6118 goto nla_put_failure;
6119 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6120 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6121 survey->channel_time))
6122 goto nla_put_failure;
6123 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6124 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6125 survey->channel_time_busy))
6126 goto nla_put_failure;
6127 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6128 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6129 survey->channel_time_ext_busy))
6130 goto nla_put_failure;
6131 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6132 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6133 survey->channel_time_rx))
6134 goto nla_put_failure;
6135 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6136 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6137 survey->channel_time_tx))
6138 goto nla_put_failure;
6140 nla_nest_end(msg, infoattr);
6142 return genlmsg_end(msg, hdr);
6145 genlmsg_cancel(msg, hdr);
6149 static int nl80211_dump_survey(struct sk_buff *skb,
6150 struct netlink_callback *cb)
6152 struct survey_info survey;
6153 struct cfg80211_registered_device *dev;
6154 struct wireless_dev *wdev;
6155 int survey_idx = cb->args[2];
6158 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
6162 if (!wdev->netdev) {
6167 if (!dev->ops->dump_survey) {
6173 struct ieee80211_channel *chan;
6175 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
6181 /* Survey without a channel doesn't make sense */
6182 if (!survey.channel) {
6187 chan = ieee80211_get_channel(&dev->wiphy,
6188 survey.channel->center_freq);
6189 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6194 if (nl80211_send_survey(skb,
6195 NETLINK_CB(cb->skb).portid,
6196 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6197 wdev->netdev, &survey) < 0)
6203 cb->args[2] = survey_idx;
6206 nl80211_finish_wdev_dump(dev);
6210 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6212 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6213 NL80211_WPA_VERSION_2));
6216 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6219 struct net_device *dev = info->user_ptr[1];
6220 struct ieee80211_channel *chan;
6221 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6222 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6223 enum nl80211_auth_type auth_type;
6224 struct key_parse key;
6225 bool local_state_change;
6227 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6230 if (!info->attrs[NL80211_ATTR_MAC])
6233 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6236 if (!info->attrs[NL80211_ATTR_SSID])
6239 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6242 err = nl80211_parse_key(info, &key);
6247 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6249 if (!key.p.key || !key.p.key_len)
6251 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6252 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6253 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6254 key.p.key_len != WLAN_KEY_LEN_WEP104))
6266 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6267 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6276 if (!rdev->ops->auth)
6279 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6280 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6283 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6284 chan = nl80211_get_valid_chan(&rdev->wiphy,
6285 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6289 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6290 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6292 if (info->attrs[NL80211_ATTR_IE]) {
6293 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6294 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6297 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6298 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6301 if (auth_type == NL80211_AUTHTYPE_SAE &&
6302 !info->attrs[NL80211_ATTR_SAE_DATA])
6305 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6306 if (auth_type != NL80211_AUTHTYPE_SAE)
6308 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6309 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6310 /* need to include at least Auth Transaction and Status Code */
6311 if (sae_data_len < 4)
6315 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6318 * Since we no longer track auth state, ignore
6319 * requests to only change local state.
6321 if (local_state_change)
6324 wdev_lock(dev->ieee80211_ptr);
6325 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6326 ssid, ssid_len, ie, ie_len,
6327 key.p.key, key.p.key_len, key.idx,
6328 sae_data, sae_data_len);
6329 wdev_unlock(dev->ieee80211_ptr);
6333 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6334 struct genl_info *info,
6335 struct cfg80211_crypto_settings *settings,
6338 memset(settings, 0, sizeof(*settings));
6340 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6342 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6344 proto = nla_get_u16(
6345 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6346 settings->control_port_ethertype = cpu_to_be16(proto);
6347 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6350 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6351 settings->control_port_no_encrypt = true;
6353 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6355 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6359 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6360 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6361 settings->n_ciphers_pairwise = len / sizeof(u32);
6363 if (len % sizeof(u32))
6366 if (settings->n_ciphers_pairwise > cipher_limit)
6369 memcpy(settings->ciphers_pairwise, data, len);
6371 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6372 if (!cfg80211_supported_cipher_suite(
6374 settings->ciphers_pairwise[i]))
6378 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6379 settings->cipher_group =
6380 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6381 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6382 settings->cipher_group))
6386 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6387 settings->wpa_versions =
6388 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6389 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6393 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6397 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6398 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6399 settings->n_akm_suites = len / sizeof(u32);
6401 if (len % sizeof(u32))
6404 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6407 memcpy(settings->akm_suites, data, len);
6413 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6416 struct net_device *dev = info->user_ptr[1];
6417 struct ieee80211_channel *chan;
6418 struct cfg80211_assoc_request req = {};
6419 const u8 *bssid, *ssid;
6420 int err, ssid_len = 0;
6422 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6425 if (!info->attrs[NL80211_ATTR_MAC] ||
6426 !info->attrs[NL80211_ATTR_SSID] ||
6427 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6430 if (!rdev->ops->assoc)
6433 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6434 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6437 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6439 chan = nl80211_get_valid_chan(&rdev->wiphy,
6440 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6444 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6445 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6447 if (info->attrs[NL80211_ATTR_IE]) {
6448 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6449 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6452 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6453 enum nl80211_mfp mfp =
6454 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6455 if (mfp == NL80211_MFP_REQUIRED)
6457 else if (mfp != NL80211_MFP_NO)
6461 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6462 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6464 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6465 req.flags |= ASSOC_REQ_DISABLE_HT;
6467 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6468 memcpy(&req.ht_capa_mask,
6469 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6470 sizeof(req.ht_capa_mask));
6472 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6473 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6475 memcpy(&req.ht_capa,
6476 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6477 sizeof(req.ht_capa));
6480 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6481 req.flags |= ASSOC_REQ_DISABLE_VHT;
6483 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6484 memcpy(&req.vht_capa_mask,
6485 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6486 sizeof(req.vht_capa_mask));
6488 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6489 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6491 memcpy(&req.vht_capa,
6492 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6493 sizeof(req.vht_capa));
6496 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6498 wdev_lock(dev->ieee80211_ptr);
6499 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6500 ssid, ssid_len, &req);
6501 wdev_unlock(dev->ieee80211_ptr);
6507 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6509 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6510 struct net_device *dev = info->user_ptr[1];
6511 const u8 *ie = NULL, *bssid;
6512 int ie_len = 0, err;
6514 bool local_state_change;
6516 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6519 if (!info->attrs[NL80211_ATTR_MAC])
6522 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6525 if (!rdev->ops->deauth)
6528 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6529 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6532 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6534 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6535 if (reason_code == 0) {
6536 /* Reason Code 0 is reserved */
6540 if (info->attrs[NL80211_ATTR_IE]) {
6541 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6542 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6545 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6547 wdev_lock(dev->ieee80211_ptr);
6548 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6549 local_state_change);
6550 wdev_unlock(dev->ieee80211_ptr);
6554 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6557 struct net_device *dev = info->user_ptr[1];
6558 const u8 *ie = NULL, *bssid;
6559 int ie_len = 0, err;
6561 bool local_state_change;
6563 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6566 if (!info->attrs[NL80211_ATTR_MAC])
6569 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6572 if (!rdev->ops->disassoc)
6575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6576 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6579 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6581 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6582 if (reason_code == 0) {
6583 /* Reason Code 0 is reserved */
6587 if (info->attrs[NL80211_ATTR_IE]) {
6588 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6589 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6592 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6594 wdev_lock(dev->ieee80211_ptr);
6595 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6596 local_state_change);
6597 wdev_unlock(dev->ieee80211_ptr);
6602 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6603 int mcast_rate[IEEE80211_NUM_BANDS],
6606 struct wiphy *wiphy = &rdev->wiphy;
6610 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6611 struct ieee80211_supported_band *sband;
6613 sband = wiphy->bands[band];
6617 for (i = 0; i < sband->n_bitrates; i++) {
6618 if (sband->bitrates[i].bitrate == rateval) {
6619 mcast_rate[band] = i + 1;
6629 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6631 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6632 struct net_device *dev = info->user_ptr[1];
6633 struct cfg80211_ibss_params ibss;
6634 struct wiphy *wiphy;
6635 struct cfg80211_cached_keys *connkeys = NULL;
6638 memset(&ibss, 0, sizeof(ibss));
6640 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6643 if (!info->attrs[NL80211_ATTR_SSID] ||
6644 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6647 ibss.beacon_interval = 100;
6649 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6650 ibss.beacon_interval =
6651 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6652 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6656 if (!rdev->ops->join_ibss)
6659 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6662 wiphy = &rdev->wiphy;
6664 if (info->attrs[NL80211_ATTR_MAC]) {
6665 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6667 if (!is_valid_ether_addr(ibss.bssid))
6670 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6671 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6673 if (info->attrs[NL80211_ATTR_IE]) {
6674 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6675 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6678 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6682 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6685 switch (ibss.chandef.width) {
6686 case NL80211_CHAN_WIDTH_5:
6687 case NL80211_CHAN_WIDTH_10:
6688 case NL80211_CHAN_WIDTH_20_NOHT:
6690 case NL80211_CHAN_WIDTH_20:
6691 case NL80211_CHAN_WIDTH_40:
6692 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6698 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6699 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6701 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6703 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6705 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6706 struct ieee80211_supported_band *sband =
6707 wiphy->bands[ibss.chandef.chan->band];
6709 err = ieee80211_get_ratemask(sband, rates, n_rates,
6715 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6716 memcpy(&ibss.ht_capa_mask,
6717 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6718 sizeof(ibss.ht_capa_mask));
6720 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6721 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6723 memcpy(&ibss.ht_capa,
6724 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6725 sizeof(ibss.ht_capa));
6728 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6729 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6730 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6733 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6736 connkeys = nl80211_parse_connkeys(rdev,
6737 info->attrs[NL80211_ATTR_KEYS],
6739 if (IS_ERR(connkeys))
6740 return PTR_ERR(connkeys);
6742 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6750 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6752 ibss.userspace_handles_dfs =
6753 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6755 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6761 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6763 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6764 struct net_device *dev = info->user_ptr[1];
6766 if (!rdev->ops->leave_ibss)
6769 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6772 return cfg80211_leave_ibss(rdev, dev, false);
6775 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6778 struct net_device *dev = info->user_ptr[1];
6779 int mcast_rate[IEEE80211_NUM_BANDS];
6783 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6784 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6787 if (!rdev->ops->set_mcast_rate)
6790 memset(mcast_rate, 0, sizeof(mcast_rate));
6792 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6795 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6796 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6799 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6804 static struct sk_buff *
6805 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6806 int approxlen, u32 portid, u32 seq,
6807 enum nl80211_commands cmd,
6808 enum nl80211_attrs attr,
6809 const struct nl80211_vendor_cmd_info *info,
6812 struct sk_buff *skb;
6814 struct nlattr *data;
6816 skb = nlmsg_new(approxlen + 100, gfp);
6820 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6826 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6827 goto nla_put_failure;
6830 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6832 goto nla_put_failure;
6833 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6835 goto nla_put_failure;
6838 data = nla_nest_start(skb, attr);
6840 ((void **)skb->cb)[0] = rdev;
6841 ((void **)skb->cb)[1] = hdr;
6842 ((void **)skb->cb)[2] = data;
6851 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6852 enum nl80211_commands cmd,
6853 enum nl80211_attrs attr,
6854 int vendor_event_idx,
6855 int approxlen, gfp_t gfp)
6857 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6858 const struct nl80211_vendor_cmd_info *info;
6861 case NL80211_CMD_TESTMODE:
6862 if (WARN_ON(vendor_event_idx != -1))
6866 case NL80211_CMD_VENDOR:
6867 if (WARN_ON(vendor_event_idx < 0 ||
6868 vendor_event_idx >= wiphy->n_vendor_events))
6870 info = &wiphy->vendor_events[vendor_event_idx];
6877 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6878 cmd, attr, info, gfp);
6880 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6882 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6884 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6885 void *hdr = ((void **)skb->cb)[1];
6886 struct nlattr *data = ((void **)skb->cb)[2];
6887 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6889 nla_nest_end(skb, data);
6890 genlmsg_end(skb, hdr);
6892 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6893 mcgrp = NL80211_MCGRP_VENDOR;
6895 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6898 EXPORT_SYMBOL(__cfg80211_send_event_skb);
6900 #ifdef CONFIG_NL80211_TESTMODE
6901 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6904 struct wireless_dev *wdev =
6905 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
6908 if (!rdev->ops->testmode_cmd)
6912 err = PTR_ERR(wdev);
6916 } else if (wdev->wiphy != &rdev->wiphy) {
6920 if (!info->attrs[NL80211_ATTR_TESTDATA])
6923 rdev->cur_cmd_info = info;
6924 err = rdev_testmode_cmd(rdev, wdev,
6925 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6926 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6927 rdev->cur_cmd_info = NULL;
6932 static int nl80211_testmode_dump(struct sk_buff *skb,
6933 struct netlink_callback *cb)
6935 struct cfg80211_registered_device *rdev;
6945 * 0 is a valid index, but not valid for args[0],
6946 * so we need to offset by 1.
6948 phy_idx = cb->args[0] - 1;
6950 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6951 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6956 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6957 nl80211_fam.attrbuf);
6959 err = PTR_ERR(rdev);
6962 phy_idx = rdev->wiphy_idx;
6965 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6967 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6971 data = nla_data((void *)cb->args[1]);
6972 data_len = nla_len((void *)cb->args[1]);
6975 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6981 if (!rdev->ops->testmode_dump) {
6987 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6988 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6989 NL80211_CMD_TESTMODE);
6990 struct nlattr *tmdata;
6995 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6996 genlmsg_cancel(skb, hdr);
7000 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7002 genlmsg_cancel(skb, hdr);
7005 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7006 nla_nest_end(skb, tmdata);
7008 if (err == -ENOBUFS || err == -ENOENT) {
7009 genlmsg_cancel(skb, hdr);
7012 genlmsg_cancel(skb, hdr);
7016 genlmsg_end(skb, hdr);
7021 cb->args[0] = phy_idx + 1;
7028 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7031 struct net_device *dev = info->user_ptr[1];
7032 struct cfg80211_connect_params connect;
7033 struct wiphy *wiphy;
7034 struct cfg80211_cached_keys *connkeys = NULL;
7037 memset(&connect, 0, sizeof(connect));
7039 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7042 if (!info->attrs[NL80211_ATTR_SSID] ||
7043 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7046 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7048 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7049 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7050 NL80211_CMD_CONNECT))
7053 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7055 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7057 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7058 NL80211_MAX_NR_CIPHER_SUITES);
7062 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7063 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7066 wiphy = &rdev->wiphy;
7068 connect.bg_scan_period = -1;
7069 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7070 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7071 connect.bg_scan_period =
7072 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7075 if (info->attrs[NL80211_ATTR_MAC])
7076 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7077 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7078 connect.bssid_hint =
7079 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7080 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7081 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7083 if (info->attrs[NL80211_ATTR_IE]) {
7084 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7085 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7088 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7089 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7090 if (connect.mfp != NL80211_MFP_REQUIRED &&
7091 connect.mfp != NL80211_MFP_NO)
7094 connect.mfp = NL80211_MFP_NO;
7097 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7098 connect.channel = nl80211_get_valid_chan(
7099 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7100 if (!connect.channel)
7102 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7103 connect.channel_hint = nl80211_get_valid_chan(
7104 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7105 if (!connect.channel_hint)
7109 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7110 connkeys = nl80211_parse_connkeys(rdev,
7111 info->attrs[NL80211_ATTR_KEYS], NULL);
7112 if (IS_ERR(connkeys))
7113 return PTR_ERR(connkeys);
7116 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7117 connect.flags |= ASSOC_REQ_DISABLE_HT;
7119 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7120 memcpy(&connect.ht_capa_mask,
7121 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7122 sizeof(connect.ht_capa_mask));
7124 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7125 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7129 memcpy(&connect.ht_capa,
7130 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7131 sizeof(connect.ht_capa));
7134 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7135 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7137 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7138 memcpy(&connect.vht_capa_mask,
7139 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7140 sizeof(connect.vht_capa_mask));
7142 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7143 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7147 memcpy(&connect.vht_capa,
7148 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7149 sizeof(connect.vht_capa));
7152 wdev_lock(dev->ieee80211_ptr);
7153 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7154 wdev_unlock(dev->ieee80211_ptr);
7160 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7162 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7163 struct net_device *dev = info->user_ptr[1];
7167 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7168 reason = WLAN_REASON_DEAUTH_LEAVING;
7170 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7175 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7176 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7179 wdev_lock(dev->ieee80211_ptr);
7180 ret = cfg80211_disconnect(rdev, dev, reason, true);
7181 wdev_unlock(dev->ieee80211_ptr);
7185 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7192 if (!info->attrs[NL80211_ATTR_PID])
7195 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7197 net = get_net_ns_by_pid(pid);
7199 return PTR_ERR(net);
7203 /* check if anything to do */
7204 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7205 err = cfg80211_switch_netns(rdev, net);
7211 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7214 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7215 struct cfg80211_pmksa *pmksa) = NULL;
7216 struct net_device *dev = info->user_ptr[1];
7217 struct cfg80211_pmksa pmksa;
7219 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7221 if (!info->attrs[NL80211_ATTR_MAC])
7224 if (!info->attrs[NL80211_ATTR_PMKID])
7227 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7228 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7230 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7231 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7234 switch (info->genlhdr->cmd) {
7235 case NL80211_CMD_SET_PMKSA:
7236 rdev_ops = rdev->ops->set_pmksa;
7238 case NL80211_CMD_DEL_PMKSA:
7239 rdev_ops = rdev->ops->del_pmksa;
7249 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7252 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7255 struct net_device *dev = info->user_ptr[1];
7257 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7258 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7261 if (!rdev->ops->flush_pmksa)
7264 return rdev_flush_pmksa(rdev, dev);
7267 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7269 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7270 struct net_device *dev = info->user_ptr[1];
7271 u8 action_code, dialog_token;
7275 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7276 !rdev->ops->tdls_mgmt)
7279 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7280 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7281 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7282 !info->attrs[NL80211_ATTR_IE] ||
7283 !info->attrs[NL80211_ATTR_MAC])
7286 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7287 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7288 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7289 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7291 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7292 dialog_token, status_code,
7293 nla_data(info->attrs[NL80211_ATTR_IE]),
7294 nla_len(info->attrs[NL80211_ATTR_IE]));
7297 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7300 struct net_device *dev = info->user_ptr[1];
7301 enum nl80211_tdls_operation operation;
7304 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7305 !rdev->ops->tdls_oper)
7308 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7309 !info->attrs[NL80211_ATTR_MAC])
7312 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7313 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7315 return rdev_tdls_oper(rdev, dev, peer, operation);
7318 static int nl80211_remain_on_channel(struct sk_buff *skb,
7319 struct genl_info *info)
7321 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7322 struct wireless_dev *wdev = info->user_ptr[1];
7323 struct cfg80211_chan_def chandef;
7324 struct sk_buff *msg;
7330 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7331 !info->attrs[NL80211_ATTR_DURATION])
7334 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7336 if (!rdev->ops->remain_on_channel ||
7337 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7341 * We should be on that channel for at least a minimum amount of
7342 * time (10ms) but no longer than the driver supports.
7344 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7345 duration > rdev->wiphy.max_remain_on_channel_duration)
7348 err = nl80211_parse_chandef(rdev, info, &chandef);
7352 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7356 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7357 NL80211_CMD_REMAIN_ON_CHANNEL);
7363 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7369 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7370 goto nla_put_failure;
7372 genlmsg_end(msg, hdr);
7374 return genlmsg_reply(msg, info);
7383 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7384 struct genl_info *info)
7386 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7387 struct wireless_dev *wdev = info->user_ptr[1];
7390 if (!info->attrs[NL80211_ATTR_COOKIE])
7393 if (!rdev->ops->cancel_remain_on_channel)
7396 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7398 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7401 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7402 u8 *rates, u8 rates_len)
7407 for (i = 0; i < rates_len; i++) {
7408 int rate = (rates[i] & 0x7f) * 5;
7410 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7411 struct ieee80211_rate *srate =
7412 &sband->bitrates[ridx];
7413 if (rate == srate->bitrate) {
7418 if (ridx == sband->n_bitrates)
7419 return 0; /* rate not found */
7425 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7426 u8 *rates, u8 rates_len,
7427 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7431 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7433 for (i = 0; i < rates_len; i++) {
7436 ridx = rates[i] / 8;
7437 rbit = BIT(rates[i] % 8);
7439 /* check validity */
7440 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7443 /* check availability */
7444 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7453 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7457 switch (vht_mcs_map) {
7458 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7460 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7463 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7466 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7476 static void vht_build_mcs_mask(u16 vht_mcs_map,
7477 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7481 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7482 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7487 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7488 struct nl80211_txrate_vht *txrate,
7489 u16 mcs[NL80211_VHT_NSS_MAX])
7491 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7492 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7495 if (!sband->vht_cap.vht_supported)
7498 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7500 /* Build vht_mcs_mask from VHT capabilities */
7501 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7503 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7504 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7505 mcs[i] = txrate->mcs[i];
7513 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7514 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7515 .len = NL80211_MAX_SUPP_RATES },
7516 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7517 .len = NL80211_MAX_SUPP_HT_RATES },
7518 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7519 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7522 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7523 struct genl_info *info)
7525 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7527 struct cfg80211_bitrate_mask mask;
7529 struct net_device *dev = info->user_ptr[1];
7530 struct nlattr *tx_rates;
7531 struct ieee80211_supported_band *sband;
7534 if (!rdev->ops->set_bitrate_mask)
7537 memset(&mask, 0, sizeof(mask));
7538 /* Default to all rates enabled */
7539 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7540 sband = rdev->wiphy.bands[i];
7545 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7546 memcpy(mask.control[i].ht_mcs,
7547 sband->ht_cap.mcs.rx_mask,
7548 sizeof(mask.control[i].ht_mcs));
7550 if (!sband->vht_cap.vht_supported)
7553 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7554 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7557 /* if no rates are given set it back to the defaults */
7558 if (!info->attrs[NL80211_ATTR_TX_RATES])
7562 * The nested attribute uses enum nl80211_band as the index. This maps
7563 * directly to the enum ieee80211_band values used in cfg80211.
7565 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7566 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7567 enum ieee80211_band band = nla_type(tx_rates);
7570 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7572 sband = rdev->wiphy.bands[band];
7575 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7576 nla_len(tx_rates), nl80211_txattr_policy);
7579 if (tb[NL80211_TXRATE_LEGACY]) {
7580 mask.control[band].legacy = rateset_to_mask(
7582 nla_data(tb[NL80211_TXRATE_LEGACY]),
7583 nla_len(tb[NL80211_TXRATE_LEGACY]));
7584 if ((mask.control[band].legacy == 0) &&
7585 nla_len(tb[NL80211_TXRATE_LEGACY]))
7588 if (tb[NL80211_TXRATE_HT]) {
7589 if (!ht_rateset_to_mask(
7591 nla_data(tb[NL80211_TXRATE_HT]),
7592 nla_len(tb[NL80211_TXRATE_HT]),
7593 mask.control[band].ht_mcs))
7596 if (tb[NL80211_TXRATE_VHT]) {
7597 if (!vht_set_mcs_mask(
7599 nla_data(tb[NL80211_TXRATE_VHT]),
7600 mask.control[band].vht_mcs))
7603 if (tb[NL80211_TXRATE_GI]) {
7604 mask.control[band].gi =
7605 nla_get_u8(tb[NL80211_TXRATE_GI]);
7606 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7610 if (mask.control[band].legacy == 0) {
7611 /* don't allow empty legacy rates if HT or VHT
7612 * are not even supported.
7614 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7615 rdev->wiphy.bands[band]->vht_cap.vht_supported))
7618 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7619 if (mask.control[band].ht_mcs[i])
7622 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7623 if (mask.control[band].vht_mcs[i])
7626 /* legacy and mcs rates may not be both empty */
7632 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7635 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7637 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7638 struct wireless_dev *wdev = info->user_ptr[1];
7639 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7641 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7644 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7645 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7647 switch (wdev->iftype) {
7648 case NL80211_IFTYPE_STATION:
7649 case NL80211_IFTYPE_ADHOC:
7650 case NL80211_IFTYPE_P2P_CLIENT:
7651 case NL80211_IFTYPE_AP:
7652 case NL80211_IFTYPE_AP_VLAN:
7653 case NL80211_IFTYPE_MESH_POINT:
7654 case NL80211_IFTYPE_P2P_GO:
7655 case NL80211_IFTYPE_P2P_DEVICE:
7661 /* not much point in registering if we can't reply */
7662 if (!rdev->ops->mgmt_tx)
7665 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7666 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7667 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7670 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7673 struct wireless_dev *wdev = info->user_ptr[1];
7674 struct cfg80211_chan_def chandef;
7678 struct sk_buff *msg = NULL;
7679 struct cfg80211_mgmt_tx_params params = {
7680 .dont_wait_for_ack =
7681 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7684 if (!info->attrs[NL80211_ATTR_FRAME])
7687 if (!rdev->ops->mgmt_tx)
7690 switch (wdev->iftype) {
7691 case NL80211_IFTYPE_P2P_DEVICE:
7692 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7694 case NL80211_IFTYPE_STATION:
7695 case NL80211_IFTYPE_ADHOC:
7696 case NL80211_IFTYPE_P2P_CLIENT:
7697 case NL80211_IFTYPE_AP:
7698 case NL80211_IFTYPE_AP_VLAN:
7699 case NL80211_IFTYPE_MESH_POINT:
7700 case NL80211_IFTYPE_P2P_GO:
7706 if (info->attrs[NL80211_ATTR_DURATION]) {
7707 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7709 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7712 * We should wait on the channel for at least a minimum amount
7713 * of time (10ms) but no longer than the driver supports.
7715 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7716 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7721 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7723 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7726 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7728 /* get the channel if any has been specified, otherwise pass NULL to
7729 * the driver. The latter will use the current one
7731 chandef.chan = NULL;
7732 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7733 err = nl80211_parse_chandef(rdev, info, &chandef);
7738 if (!chandef.chan && params.offchan)
7741 if (!params.dont_wait_for_ack) {
7742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7746 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7754 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7755 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7756 params.chan = chandef.chan;
7757 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7762 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7763 goto nla_put_failure;
7765 genlmsg_end(msg, hdr);
7766 return genlmsg_reply(msg, info);
7778 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7781 struct wireless_dev *wdev = info->user_ptr[1];
7784 if (!info->attrs[NL80211_ATTR_COOKIE])
7787 if (!rdev->ops->mgmt_tx_cancel_wait)
7790 switch (wdev->iftype) {
7791 case NL80211_IFTYPE_STATION:
7792 case NL80211_IFTYPE_ADHOC:
7793 case NL80211_IFTYPE_P2P_CLIENT:
7794 case NL80211_IFTYPE_AP:
7795 case NL80211_IFTYPE_AP_VLAN:
7796 case NL80211_IFTYPE_P2P_GO:
7797 case NL80211_IFTYPE_P2P_DEVICE:
7803 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7805 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7808 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7811 struct wireless_dev *wdev;
7812 struct net_device *dev = info->user_ptr[1];
7817 if (!info->attrs[NL80211_ATTR_PS_STATE])
7820 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7822 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7825 wdev = dev->ieee80211_ptr;
7827 if (!rdev->ops->set_power_mgmt)
7830 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7832 if (state == wdev->ps)
7835 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7841 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7844 enum nl80211_ps_state ps_state;
7845 struct wireless_dev *wdev;
7846 struct net_device *dev = info->user_ptr[1];
7847 struct sk_buff *msg;
7851 wdev = dev->ieee80211_ptr;
7853 if (!rdev->ops->set_power_mgmt)
7856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7860 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7861 NL80211_CMD_GET_POWER_SAVE);
7868 ps_state = NL80211_PS_ENABLED;
7870 ps_state = NL80211_PS_DISABLED;
7872 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7873 goto nla_put_failure;
7875 genlmsg_end(msg, hdr);
7876 return genlmsg_reply(msg, info);
7885 static const struct nla_policy
7886 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
7887 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7888 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7889 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7890 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7891 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7892 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7895 static int nl80211_set_cqm_txe(struct genl_info *info,
7896 u32 rate, u32 pkts, u32 intvl)
7898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7899 struct net_device *dev = info->user_ptr[1];
7900 struct wireless_dev *wdev = dev->ieee80211_ptr;
7902 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7905 if (!rdev->ops->set_cqm_txe_config)
7908 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7909 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7912 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7915 static int nl80211_set_cqm_rssi(struct genl_info *info,
7916 s32 threshold, u32 hysteresis)
7918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7919 struct net_device *dev = info->user_ptr[1];
7920 struct wireless_dev *wdev = dev->ieee80211_ptr;
7925 /* disabling - hysteresis should also be zero then */
7929 if (!rdev->ops->set_cqm_rssi_config)
7932 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7933 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7936 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7939 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7941 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7945 cqm = info->attrs[NL80211_ATTR_CQM];
7949 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7950 nl80211_attr_cqm_policy);
7954 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7955 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7956 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7957 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7959 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7962 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7963 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7964 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7965 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7966 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7967 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7969 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7975 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7978 struct net_device *dev = info->user_ptr[1];
7979 struct mesh_config cfg;
7980 struct mesh_setup setup;
7983 /* start with default */
7984 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7985 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7987 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7988 /* and parse parameters if given */
7989 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7994 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7995 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7998 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7999 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8001 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8002 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8003 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8006 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8007 setup.beacon_interval =
8008 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8009 if (setup.beacon_interval < 10 ||
8010 setup.beacon_interval > 10000)
8014 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8016 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8017 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8021 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8022 /* parse additional setup parameters if given */
8023 err = nl80211_parse_mesh_setup(info, &setup);
8029 cfg.auto_open_plinks = false;
8031 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8032 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8036 /* cfg80211_join_mesh() will sort it out */
8037 setup.chandef.chan = NULL;
8040 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8041 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8043 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8044 struct ieee80211_supported_band *sband;
8046 if (!setup.chandef.chan)
8049 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8051 err = ieee80211_get_ratemask(sband, rates, n_rates,
8052 &setup.basic_rates);
8057 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8060 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8063 struct net_device *dev = info->user_ptr[1];
8065 return cfg80211_leave_mesh(rdev, dev);
8069 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8070 struct cfg80211_registered_device *rdev)
8072 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8073 struct nlattr *nl_pats, *nl_pat;
8076 if (!wowlan->n_patterns)
8079 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8083 for (i = 0; i < wowlan->n_patterns; i++) {
8084 nl_pat = nla_nest_start(msg, i + 1);
8087 pat_len = wowlan->patterns[i].pattern_len;
8088 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8089 wowlan->patterns[i].mask) ||
8090 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8091 wowlan->patterns[i].pattern) ||
8092 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8093 wowlan->patterns[i].pkt_offset))
8095 nla_nest_end(msg, nl_pat);
8097 nla_nest_end(msg, nl_pats);
8102 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8103 struct cfg80211_wowlan_tcp *tcp)
8105 struct nlattr *nl_tcp;
8110 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8114 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8115 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8116 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8117 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8118 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8119 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8120 tcp->payload_len, tcp->payload) ||
8121 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8122 tcp->data_interval) ||
8123 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8124 tcp->wake_len, tcp->wake_data) ||
8125 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8126 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8129 if (tcp->payload_seq.len &&
8130 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8131 sizeof(tcp->payload_seq), &tcp->payload_seq))
8134 if (tcp->payload_tok.len &&
8135 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8136 sizeof(tcp->payload_tok) + tcp->tokens_size,
8140 nla_nest_end(msg, nl_tcp);
8145 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8147 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8148 struct sk_buff *msg;
8150 u32 size = NLMSG_DEFAULT_SIZE;
8152 if (!rdev->wiphy.wowlan)
8155 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8156 /* adjust size to have room for all the data */
8157 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8158 rdev->wiphy.wowlan_config->tcp->payload_len +
8159 rdev->wiphy.wowlan_config->tcp->wake_len +
8160 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8163 msg = nlmsg_new(size, GFP_KERNEL);
8167 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8168 NL80211_CMD_GET_WOWLAN);
8170 goto nla_put_failure;
8172 if (rdev->wiphy.wowlan_config) {
8173 struct nlattr *nl_wowlan;
8175 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8177 goto nla_put_failure;
8179 if ((rdev->wiphy.wowlan_config->any &&
8180 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8181 (rdev->wiphy.wowlan_config->disconnect &&
8182 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8183 (rdev->wiphy.wowlan_config->magic_pkt &&
8184 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8185 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8186 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8187 (rdev->wiphy.wowlan_config->eap_identity_req &&
8188 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8189 (rdev->wiphy.wowlan_config->four_way_handshake &&
8190 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8191 (rdev->wiphy.wowlan_config->rfkill_release &&
8192 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8193 goto nla_put_failure;
8195 if (nl80211_send_wowlan_patterns(msg, rdev))
8196 goto nla_put_failure;
8198 if (nl80211_send_wowlan_tcp(msg,
8199 rdev->wiphy.wowlan_config->tcp))
8200 goto nla_put_failure;
8202 nla_nest_end(msg, nl_wowlan);
8205 genlmsg_end(msg, hdr);
8206 return genlmsg_reply(msg, info);
8213 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8214 struct nlattr *attr,
8215 struct cfg80211_wowlan *trig)
8217 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8218 struct cfg80211_wowlan_tcp *cfg;
8219 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8220 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8222 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8225 if (!rdev->wiphy.wowlan->tcp)
8228 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8229 nla_data(attr), nla_len(attr),
8230 nl80211_wowlan_tcp_policy);
8234 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8235 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8236 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8237 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8238 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8239 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8240 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8241 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8244 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8245 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8248 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8249 rdev->wiphy.wowlan->tcp->data_interval_max ||
8250 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8253 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8254 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8257 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8258 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8261 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8262 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8264 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8265 tokens_size = tokln - sizeof(*tok);
8267 if (!tok->len || tokens_size % tok->len)
8269 if (!rdev->wiphy.wowlan->tcp->tok)
8271 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8273 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8275 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8277 if (tok->offset + tok->len > data_size)
8281 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8282 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8283 if (!rdev->wiphy.wowlan->tcp->seq)
8285 if (seq->len == 0 || seq->len > 4)
8287 if (seq->len + seq->offset > data_size)
8291 size = sizeof(*cfg);
8293 size += wake_size + wake_mask_size;
8294 size += tokens_size;
8296 cfg = kzalloc(size, GFP_KERNEL);
8299 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8300 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8301 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8303 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8304 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8308 /* allocate a socket and port for it and use it */
8309 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8310 IPPROTO_TCP, &cfg->sock, 1);
8315 if (inet_csk_get_port(cfg->sock->sk, port)) {
8316 sock_release(cfg->sock);
8320 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8326 cfg->src_port = port;
8329 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8330 cfg->payload_len = data_size;
8331 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8332 memcpy((void *)cfg->payload,
8333 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8336 cfg->payload_seq = *seq;
8337 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8338 cfg->wake_len = wake_size;
8339 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8340 memcpy((void *)cfg->wake_data,
8341 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8343 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8344 data_size + wake_size;
8345 memcpy((void *)cfg->wake_mask,
8346 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8349 cfg->tokens_size = tokens_size;
8350 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8358 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8360 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8361 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8362 struct cfg80211_wowlan new_triggers = {};
8363 struct cfg80211_wowlan *ntrig;
8364 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8366 bool prev_enabled = rdev->wiphy.wowlan_config;
8371 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8372 cfg80211_rdev_free_wowlan(rdev);
8373 rdev->wiphy.wowlan_config = NULL;
8377 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8378 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8379 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8380 nl80211_wowlan_policy);
8384 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8385 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8387 new_triggers.any = true;
8390 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8391 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8393 new_triggers.disconnect = true;
8396 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8397 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8399 new_triggers.magic_pkt = true;
8402 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8405 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8406 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8408 new_triggers.gtk_rekey_failure = true;
8411 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8412 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8414 new_triggers.eap_identity_req = true;
8417 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8418 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8420 new_triggers.four_way_handshake = true;
8423 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8424 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8426 new_triggers.rfkill_release = true;
8429 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8432 int rem, pat_len, mask_len, pkt_offset;
8433 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8435 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8438 if (n_patterns > wowlan->n_patterns)
8441 new_triggers.patterns = kcalloc(n_patterns,
8442 sizeof(new_triggers.patterns[0]),
8444 if (!new_triggers.patterns)
8447 new_triggers.n_patterns = n_patterns;
8450 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8452 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8453 nla_len(pat), NULL);
8455 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8456 !pat_tb[NL80211_PKTPAT_PATTERN])
8458 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8459 mask_len = DIV_ROUND_UP(pat_len, 8);
8460 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8462 if (pat_len > wowlan->pattern_max_len ||
8463 pat_len < wowlan->pattern_min_len)
8466 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8469 pkt_offset = nla_get_u32(
8470 pat_tb[NL80211_PKTPAT_OFFSET]);
8471 if (pkt_offset > wowlan->max_pkt_offset)
8473 new_triggers.patterns[i].pkt_offset = pkt_offset;
8475 new_triggers.patterns[i].mask =
8476 kmalloc(mask_len + pat_len, GFP_KERNEL);
8477 if (!new_triggers.patterns[i].mask) {
8481 new_triggers.patterns[i].pattern =
8482 new_triggers.patterns[i].mask + mask_len;
8483 memcpy(new_triggers.patterns[i].mask,
8484 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8486 new_triggers.patterns[i].pattern_len = pat_len;
8487 memcpy(new_triggers.patterns[i].pattern,
8488 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8494 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8495 err = nl80211_parse_wowlan_tcp(
8496 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8502 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8507 cfg80211_rdev_free_wowlan(rdev);
8508 rdev->wiphy.wowlan_config = ntrig;
8511 if (rdev->ops->set_wakeup &&
8512 prev_enabled != !!rdev->wiphy.wowlan_config)
8513 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8517 for (i = 0; i < new_triggers.n_patterns; i++)
8518 kfree(new_triggers.patterns[i].mask);
8519 kfree(new_triggers.patterns);
8520 if (new_triggers.tcp && new_triggers.tcp->sock)
8521 sock_release(new_triggers.tcp->sock);
8522 kfree(new_triggers.tcp);
8527 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8528 struct cfg80211_registered_device *rdev)
8530 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8532 struct cfg80211_coalesce_rules *rule;
8534 if (!rdev->coalesce->n_rules)
8537 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8541 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8542 nl_rule = nla_nest_start(msg, i + 1);
8546 rule = &rdev->coalesce->rules[i];
8547 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8551 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8555 nl_pats = nla_nest_start(msg,
8556 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8560 for (j = 0; j < rule->n_patterns; j++) {
8561 nl_pat = nla_nest_start(msg, j + 1);
8564 pat_len = rule->patterns[j].pattern_len;
8565 if (nla_put(msg, NL80211_PKTPAT_MASK,
8566 DIV_ROUND_UP(pat_len, 8),
8567 rule->patterns[j].mask) ||
8568 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8569 rule->patterns[j].pattern) ||
8570 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8571 rule->patterns[j].pkt_offset))
8573 nla_nest_end(msg, nl_pat);
8575 nla_nest_end(msg, nl_pats);
8576 nla_nest_end(msg, nl_rule);
8578 nla_nest_end(msg, nl_rules);
8583 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8586 struct sk_buff *msg;
8589 if (!rdev->wiphy.coalesce)
8592 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8596 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8597 NL80211_CMD_GET_COALESCE);
8599 goto nla_put_failure;
8601 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8602 goto nla_put_failure;
8604 genlmsg_end(msg, hdr);
8605 return genlmsg_reply(msg, info);
8612 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8614 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8616 struct cfg80211_coalesce_rules *rule;
8621 for (i = 0; i < coalesce->n_rules; i++) {
8622 rule = &coalesce->rules[i];
8623 for (j = 0; j < rule->n_patterns; j++)
8624 kfree(rule->patterns[j].mask);
8625 kfree(rule->patterns);
8627 kfree(coalesce->rules);
8629 rdev->coalesce = NULL;
8632 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8633 struct nlattr *rule,
8634 struct cfg80211_coalesce_rules *new_rule)
8637 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8638 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8639 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8640 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8642 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8643 nla_len(rule), nl80211_coalesce_policy);
8647 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8649 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8650 if (new_rule->delay > coalesce->max_delay)
8653 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8654 new_rule->condition =
8655 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8656 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8657 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8660 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8663 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8666 if (n_patterns > coalesce->n_patterns)
8669 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8671 if (!new_rule->patterns)
8674 new_rule->n_patterns = n_patterns;
8677 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8679 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8680 nla_len(pat), NULL);
8681 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8682 !pat_tb[NL80211_PKTPAT_PATTERN])
8684 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8685 mask_len = DIV_ROUND_UP(pat_len, 8);
8686 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8688 if (pat_len > coalesce->pattern_max_len ||
8689 pat_len < coalesce->pattern_min_len)
8692 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8695 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8696 if (pkt_offset > coalesce->max_pkt_offset)
8698 new_rule->patterns[i].pkt_offset = pkt_offset;
8700 new_rule->patterns[i].mask =
8701 kmalloc(mask_len + pat_len, GFP_KERNEL);
8702 if (!new_rule->patterns[i].mask)
8704 new_rule->patterns[i].pattern =
8705 new_rule->patterns[i].mask + mask_len;
8706 memcpy(new_rule->patterns[i].mask,
8707 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8708 new_rule->patterns[i].pattern_len = pat_len;
8709 memcpy(new_rule->patterns[i].pattern,
8710 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8717 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8719 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8720 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8721 struct cfg80211_coalesce new_coalesce = {};
8722 struct cfg80211_coalesce *n_coalesce;
8723 int err, rem_rule, n_rules = 0, i, j;
8724 struct nlattr *rule;
8725 struct cfg80211_coalesce_rules *tmp_rule;
8727 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8730 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8731 cfg80211_rdev_free_coalesce(rdev);
8732 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8736 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8739 if (n_rules > coalesce->n_rules)
8742 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8744 if (!new_coalesce.rules)
8747 new_coalesce.n_rules = n_rules;
8750 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8752 err = nl80211_parse_coalesce_rule(rdev, rule,
8753 &new_coalesce.rules[i]);
8760 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8764 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8769 cfg80211_rdev_free_coalesce(rdev);
8770 rdev->coalesce = n_coalesce;
8774 for (i = 0; i < new_coalesce.n_rules; i++) {
8775 tmp_rule = &new_coalesce.rules[i];
8776 for (j = 0; j < tmp_rule->n_patterns; j++)
8777 kfree(tmp_rule->patterns[j].mask);
8778 kfree(tmp_rule->patterns);
8780 kfree(new_coalesce.rules);
8785 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8787 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8788 struct net_device *dev = info->user_ptr[1];
8789 struct wireless_dev *wdev = dev->ieee80211_ptr;
8790 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8791 struct cfg80211_gtk_rekey_data rekey_data;
8794 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8797 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8798 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8799 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8800 nl80211_rekey_policy);
8804 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8806 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8808 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8811 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8813 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8815 memcpy(rekey_data.replay_ctr,
8816 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8817 NL80211_REPLAY_CTR_LEN);
8820 if (!wdev->current_bss) {
8825 if (!rdev->ops->set_rekey_data) {
8830 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8836 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8837 struct genl_info *info)
8839 struct net_device *dev = info->user_ptr[1];
8840 struct wireless_dev *wdev = dev->ieee80211_ptr;
8842 if (wdev->iftype != NL80211_IFTYPE_AP &&
8843 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8846 if (wdev->ap_unexpected_nlportid)
8849 wdev->ap_unexpected_nlportid = info->snd_portid;
8853 static int nl80211_probe_client(struct sk_buff *skb,
8854 struct genl_info *info)
8856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8857 struct net_device *dev = info->user_ptr[1];
8858 struct wireless_dev *wdev = dev->ieee80211_ptr;
8859 struct sk_buff *msg;
8865 if (wdev->iftype != NL80211_IFTYPE_AP &&
8866 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8869 if (!info->attrs[NL80211_ATTR_MAC])
8872 if (!rdev->ops->probe_client)
8875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8879 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8880 NL80211_CMD_PROBE_CLIENT);
8886 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8888 err = rdev_probe_client(rdev, dev, addr, &cookie);
8892 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8893 goto nla_put_failure;
8895 genlmsg_end(msg, hdr);
8897 return genlmsg_reply(msg, info);
8906 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8909 struct cfg80211_beacon_registration *reg, *nreg;
8912 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8915 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8919 /* First, check if already registered. */
8920 spin_lock_bh(&rdev->beacon_registrations_lock);
8921 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8922 if (reg->nlportid == info->snd_portid) {
8927 /* Add it to the list */
8928 nreg->nlportid = info->snd_portid;
8929 list_add(&nreg->list, &rdev->beacon_registrations);
8931 spin_unlock_bh(&rdev->beacon_registrations_lock);
8935 spin_unlock_bh(&rdev->beacon_registrations_lock);
8940 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8943 struct wireless_dev *wdev = info->user_ptr[1];
8946 if (!rdev->ops->start_p2p_device)
8949 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8952 if (wdev->p2p_started)
8955 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8959 err = rdev_start_p2p_device(rdev, wdev);
8963 wdev->p2p_started = true;
8969 static int nl80211_stop_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];
8974 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8977 if (!rdev->ops->stop_p2p_device)
8980 cfg80211_stop_p2p_device(rdev, wdev);
8985 static int nl80211_get_protocol_features(struct sk_buff *skb,
8986 struct genl_info *info)
8989 struct sk_buff *msg;
8991 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8995 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8996 NL80211_CMD_GET_PROTOCOL_FEATURES);
8998 goto nla_put_failure;
9000 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9001 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9002 goto nla_put_failure;
9004 genlmsg_end(msg, hdr);
9005 return genlmsg_reply(msg, info);
9012 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9015 struct cfg80211_update_ft_ies_params ft_params;
9016 struct net_device *dev = info->user_ptr[1];
9018 if (!rdev->ops->update_ft_ies)
9021 if (!info->attrs[NL80211_ATTR_MDID] ||
9022 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9025 memset(&ft_params, 0, sizeof(ft_params));
9026 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9027 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9028 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9030 return rdev_update_ft_ies(rdev, dev, &ft_params);
9033 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9034 struct genl_info *info)
9036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9037 struct wireless_dev *wdev = info->user_ptr[1];
9038 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9042 if (!rdev->ops->crit_proto_start)
9045 if (WARN_ON(!rdev->ops->crit_proto_stop))
9048 if (rdev->crit_proto_nlportid)
9051 /* determine protocol if provided */
9052 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9053 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9055 if (proto >= NUM_NL80211_CRIT_PROTO)
9058 /* timeout must be provided */
9059 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9063 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9065 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9068 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9070 rdev->crit_proto_nlportid = info->snd_portid;
9075 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9076 struct genl_info *info)
9078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9079 struct wireless_dev *wdev = info->user_ptr[1];
9081 if (!rdev->ops->crit_proto_stop)
9084 if (rdev->crit_proto_nlportid) {
9085 rdev->crit_proto_nlportid = 0;
9086 rdev_crit_proto_stop(rdev, wdev);
9091 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9094 struct wireless_dev *wdev =
9095 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9099 if (!rdev->wiphy.vendor_commands)
9103 err = PTR_ERR(wdev);
9107 } else if (wdev->wiphy != &rdev->wiphy) {
9111 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9112 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9115 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9116 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9117 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9118 const struct wiphy_vendor_command *vcmd;
9122 vcmd = &rdev->wiphy.vendor_commands[i];
9124 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9127 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9128 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9131 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9135 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9137 !netif_running(wdev->netdev))
9139 if (!wdev->netdev && !wdev->p2p_started)
9146 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9147 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9148 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9151 rdev->cur_cmd_info = info;
9152 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9154 rdev->cur_cmd_info = NULL;
9161 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9162 enum nl80211_commands cmd,
9163 enum nl80211_attrs attr,
9166 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9168 if (WARN_ON(!rdev->cur_cmd_info))
9171 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9172 rdev->cur_cmd_info->snd_portid,
9173 rdev->cur_cmd_info->snd_seq,
9174 cmd, attr, NULL, GFP_KERNEL);
9176 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9178 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9180 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9181 void *hdr = ((void **)skb->cb)[1];
9182 struct nlattr *data = ((void **)skb->cb)[2];
9184 if (WARN_ON(!rdev->cur_cmd_info)) {
9189 nla_nest_end(skb, data);
9190 genlmsg_end(skb, hdr);
9191 return genlmsg_reply(skb, rdev->cur_cmd_info);
9193 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9196 static int nl80211_set_qos_map(struct sk_buff *skb,
9197 struct genl_info *info)
9199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9200 struct cfg80211_qos_map *qos_map = NULL;
9201 struct net_device *dev = info->user_ptr[1];
9202 u8 *pos, len, num_des, des_len, des;
9205 if (!rdev->ops->set_qos_map)
9208 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9209 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9210 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9212 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9213 len > IEEE80211_QOS_MAP_LEN_MAX)
9216 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9220 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9223 sizeof(struct cfg80211_dscp_exception);
9224 memcpy(qos_map->dscp_exception, pos, des_len);
9225 qos_map->num_des = num_des;
9226 for (des = 0; des < num_des; des++) {
9227 if (qos_map->dscp_exception[des].up > 7) {
9234 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9237 wdev_lock(dev->ieee80211_ptr);
9238 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9240 ret = rdev_set_qos_map(rdev, dev, qos_map);
9241 wdev_unlock(dev->ieee80211_ptr);
9247 #define NL80211_FLAG_NEED_WIPHY 0x01
9248 #define NL80211_FLAG_NEED_NETDEV 0x02
9249 #define NL80211_FLAG_NEED_RTNL 0x04
9250 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9251 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9252 NL80211_FLAG_CHECK_NETDEV_UP)
9253 #define NL80211_FLAG_NEED_WDEV 0x10
9254 /* If a netdev is associated, it must be UP, P2P must be started */
9255 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9256 NL80211_FLAG_CHECK_NETDEV_UP)
9258 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9259 struct genl_info *info)
9261 struct cfg80211_registered_device *rdev;
9262 struct wireless_dev *wdev;
9263 struct net_device *dev;
9264 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9269 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9270 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9274 return PTR_ERR(rdev);
9276 info->user_ptr[0] = rdev;
9277 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9278 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9281 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9286 return PTR_ERR(wdev);
9290 rdev = wiphy_to_dev(wdev->wiphy);
9292 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9299 info->user_ptr[1] = dev;
9301 info->user_ptr[1] = wdev;
9305 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9306 !netif_running(dev)) {
9313 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9314 if (!wdev->p2p_started) {
9321 info->user_ptr[0] = rdev;
9327 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
9328 struct genl_info *info)
9330 if (info->user_ptr[1]) {
9331 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9332 struct wireless_dev *wdev = info->user_ptr[1];
9335 dev_put(wdev->netdev);
9337 dev_put(info->user_ptr[1]);
9340 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9344 static const struct genl_ops nl80211_ops[] = {
9346 .cmd = NL80211_CMD_GET_WIPHY,
9347 .doit = nl80211_get_wiphy,
9348 .dumpit = nl80211_dump_wiphy,
9349 .done = nl80211_dump_wiphy_done,
9350 .policy = nl80211_policy,
9351 /* can be retrieved by unprivileged users */
9352 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9353 NL80211_FLAG_NEED_RTNL,
9356 .cmd = NL80211_CMD_SET_WIPHY,
9357 .doit = nl80211_set_wiphy,
9358 .policy = nl80211_policy,
9359 .flags = GENL_ADMIN_PERM,
9360 .internal_flags = NL80211_FLAG_NEED_RTNL,
9363 .cmd = NL80211_CMD_GET_INTERFACE,
9364 .doit = nl80211_get_interface,
9365 .dumpit = nl80211_dump_interface,
9366 .policy = nl80211_policy,
9367 /* can be retrieved by unprivileged users */
9368 .internal_flags = NL80211_FLAG_NEED_WDEV |
9369 NL80211_FLAG_NEED_RTNL,
9372 .cmd = NL80211_CMD_SET_INTERFACE,
9373 .doit = nl80211_set_interface,
9374 .policy = nl80211_policy,
9375 .flags = GENL_ADMIN_PERM,
9376 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9377 NL80211_FLAG_NEED_RTNL,
9380 .cmd = NL80211_CMD_NEW_INTERFACE,
9381 .doit = nl80211_new_interface,
9382 .policy = nl80211_policy,
9383 .flags = GENL_ADMIN_PERM,
9384 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9385 NL80211_FLAG_NEED_RTNL,
9388 .cmd = NL80211_CMD_DEL_INTERFACE,
9389 .doit = nl80211_del_interface,
9390 .policy = nl80211_policy,
9391 .flags = GENL_ADMIN_PERM,
9392 .internal_flags = NL80211_FLAG_NEED_WDEV |
9393 NL80211_FLAG_NEED_RTNL,
9396 .cmd = NL80211_CMD_GET_KEY,
9397 .doit = nl80211_get_key,
9398 .policy = nl80211_policy,
9399 .flags = GENL_ADMIN_PERM,
9400 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9401 NL80211_FLAG_NEED_RTNL,
9404 .cmd = NL80211_CMD_SET_KEY,
9405 .doit = nl80211_set_key,
9406 .policy = nl80211_policy,
9407 .flags = GENL_ADMIN_PERM,
9408 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9409 NL80211_FLAG_NEED_RTNL,
9412 .cmd = NL80211_CMD_NEW_KEY,
9413 .doit = nl80211_new_key,
9414 .policy = nl80211_policy,
9415 .flags = GENL_ADMIN_PERM,
9416 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9417 NL80211_FLAG_NEED_RTNL,
9420 .cmd = NL80211_CMD_DEL_KEY,
9421 .doit = nl80211_del_key,
9422 .policy = nl80211_policy,
9423 .flags = GENL_ADMIN_PERM,
9424 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9425 NL80211_FLAG_NEED_RTNL,
9428 .cmd = NL80211_CMD_SET_BEACON,
9429 .policy = nl80211_policy,
9430 .flags = GENL_ADMIN_PERM,
9431 .doit = nl80211_set_beacon,
9432 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9433 NL80211_FLAG_NEED_RTNL,
9436 .cmd = NL80211_CMD_START_AP,
9437 .policy = nl80211_policy,
9438 .flags = GENL_ADMIN_PERM,
9439 .doit = nl80211_start_ap,
9440 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9441 NL80211_FLAG_NEED_RTNL,
9444 .cmd = NL80211_CMD_STOP_AP,
9445 .policy = nl80211_policy,
9446 .flags = GENL_ADMIN_PERM,
9447 .doit = nl80211_stop_ap,
9448 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9449 NL80211_FLAG_NEED_RTNL,
9452 .cmd = NL80211_CMD_GET_STATION,
9453 .doit = nl80211_get_station,
9454 .dumpit = nl80211_dump_station,
9455 .policy = nl80211_policy,
9456 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9457 NL80211_FLAG_NEED_RTNL,
9460 .cmd = NL80211_CMD_SET_STATION,
9461 .doit = nl80211_set_station,
9462 .policy = nl80211_policy,
9463 .flags = GENL_ADMIN_PERM,
9464 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9465 NL80211_FLAG_NEED_RTNL,
9468 .cmd = NL80211_CMD_NEW_STATION,
9469 .doit = nl80211_new_station,
9470 .policy = nl80211_policy,
9471 .flags = GENL_ADMIN_PERM,
9472 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9473 NL80211_FLAG_NEED_RTNL,
9476 .cmd = NL80211_CMD_DEL_STATION,
9477 .doit = nl80211_del_station,
9478 .policy = nl80211_policy,
9479 .flags = GENL_ADMIN_PERM,
9480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9481 NL80211_FLAG_NEED_RTNL,
9484 .cmd = NL80211_CMD_GET_MPATH,
9485 .doit = nl80211_get_mpath,
9486 .dumpit = nl80211_dump_mpath,
9487 .policy = nl80211_policy,
9488 .flags = GENL_ADMIN_PERM,
9489 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9490 NL80211_FLAG_NEED_RTNL,
9493 .cmd = NL80211_CMD_SET_MPATH,
9494 .doit = nl80211_set_mpath,
9495 .policy = nl80211_policy,
9496 .flags = GENL_ADMIN_PERM,
9497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9498 NL80211_FLAG_NEED_RTNL,
9501 .cmd = NL80211_CMD_NEW_MPATH,
9502 .doit = nl80211_new_mpath,
9503 .policy = nl80211_policy,
9504 .flags = GENL_ADMIN_PERM,
9505 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9506 NL80211_FLAG_NEED_RTNL,
9509 .cmd = NL80211_CMD_DEL_MPATH,
9510 .doit = nl80211_del_mpath,
9511 .policy = nl80211_policy,
9512 .flags = GENL_ADMIN_PERM,
9513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9514 NL80211_FLAG_NEED_RTNL,
9517 .cmd = NL80211_CMD_SET_BSS,
9518 .doit = nl80211_set_bss,
9519 .policy = nl80211_policy,
9520 .flags = GENL_ADMIN_PERM,
9521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9522 NL80211_FLAG_NEED_RTNL,
9525 .cmd = NL80211_CMD_GET_REG,
9526 .doit = nl80211_get_reg,
9527 .policy = nl80211_policy,
9528 .internal_flags = NL80211_FLAG_NEED_RTNL,
9529 /* can be retrieved by unprivileged users */
9532 .cmd = NL80211_CMD_SET_REG,
9533 .doit = nl80211_set_reg,
9534 .policy = nl80211_policy,
9535 .flags = GENL_ADMIN_PERM,
9536 .internal_flags = NL80211_FLAG_NEED_RTNL,
9539 .cmd = NL80211_CMD_REQ_SET_REG,
9540 .doit = nl80211_req_set_reg,
9541 .policy = nl80211_policy,
9542 .flags = GENL_ADMIN_PERM,
9545 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9546 .doit = nl80211_get_mesh_config,
9547 .policy = nl80211_policy,
9548 /* can be retrieved by unprivileged users */
9549 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9550 NL80211_FLAG_NEED_RTNL,
9553 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9554 .doit = nl80211_update_mesh_config,
9555 .policy = nl80211_policy,
9556 .flags = GENL_ADMIN_PERM,
9557 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9558 NL80211_FLAG_NEED_RTNL,
9561 .cmd = NL80211_CMD_TRIGGER_SCAN,
9562 .doit = nl80211_trigger_scan,
9563 .policy = nl80211_policy,
9564 .flags = GENL_ADMIN_PERM,
9565 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9566 NL80211_FLAG_NEED_RTNL,
9569 .cmd = NL80211_CMD_GET_SCAN,
9570 .policy = nl80211_policy,
9571 .dumpit = nl80211_dump_scan,
9574 .cmd = NL80211_CMD_START_SCHED_SCAN,
9575 .doit = nl80211_start_sched_scan,
9576 .policy = nl80211_policy,
9577 .flags = GENL_ADMIN_PERM,
9578 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9579 NL80211_FLAG_NEED_RTNL,
9582 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9583 .doit = nl80211_stop_sched_scan,
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_AUTHENTICATE,
9591 .doit = nl80211_authenticate,
9592 .policy = nl80211_policy,
9593 .flags = GENL_ADMIN_PERM,
9594 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9595 NL80211_FLAG_NEED_RTNL,
9598 .cmd = NL80211_CMD_ASSOCIATE,
9599 .doit = nl80211_associate,
9600 .policy = nl80211_policy,
9601 .flags = GENL_ADMIN_PERM,
9602 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9603 NL80211_FLAG_NEED_RTNL,
9606 .cmd = NL80211_CMD_DEAUTHENTICATE,
9607 .doit = nl80211_deauthenticate,
9608 .policy = nl80211_policy,
9609 .flags = GENL_ADMIN_PERM,
9610 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9611 NL80211_FLAG_NEED_RTNL,
9614 .cmd = NL80211_CMD_DISASSOCIATE,
9615 .doit = nl80211_disassociate,
9616 .policy = nl80211_policy,
9617 .flags = GENL_ADMIN_PERM,
9618 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9619 NL80211_FLAG_NEED_RTNL,
9622 .cmd = NL80211_CMD_JOIN_IBSS,
9623 .doit = nl80211_join_ibss,
9624 .policy = nl80211_policy,
9625 .flags = GENL_ADMIN_PERM,
9626 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9627 NL80211_FLAG_NEED_RTNL,
9630 .cmd = NL80211_CMD_LEAVE_IBSS,
9631 .doit = nl80211_leave_ibss,
9632 .policy = nl80211_policy,
9633 .flags = GENL_ADMIN_PERM,
9634 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9635 NL80211_FLAG_NEED_RTNL,
9637 #ifdef CONFIG_NL80211_TESTMODE
9639 .cmd = NL80211_CMD_TESTMODE,
9640 .doit = nl80211_testmode_do,
9641 .dumpit = nl80211_testmode_dump,
9642 .policy = nl80211_policy,
9643 .flags = GENL_ADMIN_PERM,
9644 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9645 NL80211_FLAG_NEED_RTNL,
9649 .cmd = NL80211_CMD_CONNECT,
9650 .doit = nl80211_connect,
9651 .policy = nl80211_policy,
9652 .flags = GENL_ADMIN_PERM,
9653 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9654 NL80211_FLAG_NEED_RTNL,
9657 .cmd = NL80211_CMD_DISCONNECT,
9658 .doit = nl80211_disconnect,
9659 .policy = nl80211_policy,
9660 .flags = GENL_ADMIN_PERM,
9661 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9662 NL80211_FLAG_NEED_RTNL,
9665 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9666 .doit = nl80211_wiphy_netns,
9667 .policy = nl80211_policy,
9668 .flags = GENL_ADMIN_PERM,
9669 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9670 NL80211_FLAG_NEED_RTNL,
9673 .cmd = NL80211_CMD_GET_SURVEY,
9674 .policy = nl80211_policy,
9675 .dumpit = nl80211_dump_survey,
9678 .cmd = NL80211_CMD_SET_PMKSA,
9679 .doit = nl80211_setdel_pmksa,
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_DEL_PMKSA,
9687 .doit = nl80211_setdel_pmksa,
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_FLUSH_PMKSA,
9695 .doit = nl80211_flush_pmksa,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
9698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9699 NL80211_FLAG_NEED_RTNL,
9702 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9703 .doit = nl80211_remain_on_channel,
9704 .policy = nl80211_policy,
9705 .flags = GENL_ADMIN_PERM,
9706 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9707 NL80211_FLAG_NEED_RTNL,
9710 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9711 .doit = nl80211_cancel_remain_on_channel,
9712 .policy = nl80211_policy,
9713 .flags = GENL_ADMIN_PERM,
9714 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9715 NL80211_FLAG_NEED_RTNL,
9718 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9719 .doit = nl80211_set_tx_bitrate_mask,
9720 .policy = nl80211_policy,
9721 .flags = GENL_ADMIN_PERM,
9722 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9723 NL80211_FLAG_NEED_RTNL,
9726 .cmd = NL80211_CMD_REGISTER_FRAME,
9727 .doit = nl80211_register_mgmt,
9728 .policy = nl80211_policy,
9729 .flags = GENL_ADMIN_PERM,
9730 .internal_flags = NL80211_FLAG_NEED_WDEV |
9731 NL80211_FLAG_NEED_RTNL,
9734 .cmd = NL80211_CMD_FRAME,
9735 .doit = nl80211_tx_mgmt,
9736 .policy = nl80211_policy,
9737 .flags = GENL_ADMIN_PERM,
9738 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9739 NL80211_FLAG_NEED_RTNL,
9742 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9743 .doit = nl80211_tx_mgmt_cancel_wait,
9744 .policy = nl80211_policy,
9745 .flags = GENL_ADMIN_PERM,
9746 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9747 NL80211_FLAG_NEED_RTNL,
9750 .cmd = NL80211_CMD_SET_POWER_SAVE,
9751 .doit = nl80211_set_power_save,
9752 .policy = nl80211_policy,
9753 .flags = GENL_ADMIN_PERM,
9754 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9755 NL80211_FLAG_NEED_RTNL,
9758 .cmd = NL80211_CMD_GET_POWER_SAVE,
9759 .doit = nl80211_get_power_save,
9760 .policy = nl80211_policy,
9761 /* can be retrieved by unprivileged users */
9762 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9763 NL80211_FLAG_NEED_RTNL,
9766 .cmd = NL80211_CMD_SET_CQM,
9767 .doit = nl80211_set_cqm,
9768 .policy = nl80211_policy,
9769 .flags = GENL_ADMIN_PERM,
9770 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9771 NL80211_FLAG_NEED_RTNL,
9774 .cmd = NL80211_CMD_SET_CHANNEL,
9775 .doit = nl80211_set_channel,
9776 .policy = nl80211_policy,
9777 .flags = GENL_ADMIN_PERM,
9778 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9779 NL80211_FLAG_NEED_RTNL,
9782 .cmd = NL80211_CMD_SET_WDS_PEER,
9783 .doit = nl80211_set_wds_peer,
9784 .policy = nl80211_policy,
9785 .flags = GENL_ADMIN_PERM,
9786 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9787 NL80211_FLAG_NEED_RTNL,
9790 .cmd = NL80211_CMD_JOIN_MESH,
9791 .doit = nl80211_join_mesh,
9792 .policy = nl80211_policy,
9793 .flags = GENL_ADMIN_PERM,
9794 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9795 NL80211_FLAG_NEED_RTNL,
9798 .cmd = NL80211_CMD_LEAVE_MESH,
9799 .doit = nl80211_leave_mesh,
9800 .policy = nl80211_policy,
9801 .flags = GENL_ADMIN_PERM,
9802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9803 NL80211_FLAG_NEED_RTNL,
9807 .cmd = NL80211_CMD_GET_WOWLAN,
9808 .doit = nl80211_get_wowlan,
9809 .policy = nl80211_policy,
9810 /* can be retrieved by unprivileged users */
9811 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9812 NL80211_FLAG_NEED_RTNL,
9815 .cmd = NL80211_CMD_SET_WOWLAN,
9816 .doit = nl80211_set_wowlan,
9817 .policy = nl80211_policy,
9818 .flags = GENL_ADMIN_PERM,
9819 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9820 NL80211_FLAG_NEED_RTNL,
9824 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9825 .doit = nl80211_set_rekey_data,
9826 .policy = nl80211_policy,
9827 .flags = GENL_ADMIN_PERM,
9828 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9829 NL80211_FLAG_NEED_RTNL,
9832 .cmd = NL80211_CMD_TDLS_MGMT,
9833 .doit = nl80211_tdls_mgmt,
9834 .policy = nl80211_policy,
9835 .flags = GENL_ADMIN_PERM,
9836 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9837 NL80211_FLAG_NEED_RTNL,
9840 .cmd = NL80211_CMD_TDLS_OPER,
9841 .doit = nl80211_tdls_oper,
9842 .policy = nl80211_policy,
9843 .flags = GENL_ADMIN_PERM,
9844 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9845 NL80211_FLAG_NEED_RTNL,
9848 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9849 .doit = nl80211_register_unexpected_frame,
9850 .policy = nl80211_policy,
9851 .flags = GENL_ADMIN_PERM,
9852 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9853 NL80211_FLAG_NEED_RTNL,
9856 .cmd = NL80211_CMD_PROBE_CLIENT,
9857 .doit = nl80211_probe_client,
9858 .policy = nl80211_policy,
9859 .flags = GENL_ADMIN_PERM,
9860 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9861 NL80211_FLAG_NEED_RTNL,
9864 .cmd = NL80211_CMD_REGISTER_BEACONS,
9865 .doit = nl80211_register_beacons,
9866 .policy = nl80211_policy,
9867 .flags = GENL_ADMIN_PERM,
9868 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9869 NL80211_FLAG_NEED_RTNL,
9872 .cmd = NL80211_CMD_SET_NOACK_MAP,
9873 .doit = nl80211_set_noack_map,
9874 .policy = nl80211_policy,
9875 .flags = GENL_ADMIN_PERM,
9876 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9877 NL80211_FLAG_NEED_RTNL,
9880 .cmd = NL80211_CMD_START_P2P_DEVICE,
9881 .doit = nl80211_start_p2p_device,
9882 .policy = nl80211_policy,
9883 .flags = GENL_ADMIN_PERM,
9884 .internal_flags = NL80211_FLAG_NEED_WDEV |
9885 NL80211_FLAG_NEED_RTNL,
9888 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9889 .doit = nl80211_stop_p2p_device,
9890 .policy = nl80211_policy,
9891 .flags = GENL_ADMIN_PERM,
9892 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9893 NL80211_FLAG_NEED_RTNL,
9896 .cmd = NL80211_CMD_SET_MCAST_RATE,
9897 .doit = nl80211_set_mcast_rate,
9898 .policy = nl80211_policy,
9899 .flags = GENL_ADMIN_PERM,
9900 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9901 NL80211_FLAG_NEED_RTNL,
9904 .cmd = NL80211_CMD_SET_MAC_ACL,
9905 .doit = nl80211_set_mac_acl,
9906 .policy = nl80211_policy,
9907 .flags = GENL_ADMIN_PERM,
9908 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9909 NL80211_FLAG_NEED_RTNL,
9912 .cmd = NL80211_CMD_RADAR_DETECT,
9913 .doit = nl80211_start_radar_detection,
9914 .policy = nl80211_policy,
9915 .flags = GENL_ADMIN_PERM,
9916 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9917 NL80211_FLAG_NEED_RTNL,
9920 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9921 .doit = nl80211_get_protocol_features,
9922 .policy = nl80211_policy,
9925 .cmd = NL80211_CMD_UPDATE_FT_IES,
9926 .doit = nl80211_update_ft_ies,
9927 .policy = nl80211_policy,
9928 .flags = GENL_ADMIN_PERM,
9929 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9930 NL80211_FLAG_NEED_RTNL,
9933 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9934 .doit = nl80211_crit_protocol_start,
9935 .policy = nl80211_policy,
9936 .flags = GENL_ADMIN_PERM,
9937 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9938 NL80211_FLAG_NEED_RTNL,
9941 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9942 .doit = nl80211_crit_protocol_stop,
9943 .policy = nl80211_policy,
9944 .flags = GENL_ADMIN_PERM,
9945 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9946 NL80211_FLAG_NEED_RTNL,
9949 .cmd = NL80211_CMD_GET_COALESCE,
9950 .doit = nl80211_get_coalesce,
9951 .policy = nl80211_policy,
9952 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9953 NL80211_FLAG_NEED_RTNL,
9956 .cmd = NL80211_CMD_SET_COALESCE,
9957 .doit = nl80211_set_coalesce,
9958 .policy = nl80211_policy,
9959 .flags = GENL_ADMIN_PERM,
9960 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9961 NL80211_FLAG_NEED_RTNL,
9964 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9965 .doit = nl80211_channel_switch,
9966 .policy = nl80211_policy,
9967 .flags = GENL_ADMIN_PERM,
9968 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9969 NL80211_FLAG_NEED_RTNL,
9972 .cmd = NL80211_CMD_VENDOR,
9973 .doit = nl80211_vendor_cmd,
9974 .policy = nl80211_policy,
9975 .flags = GENL_ADMIN_PERM,
9976 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9977 NL80211_FLAG_NEED_RTNL,
9980 .cmd = NL80211_CMD_SET_QOS_MAP,
9981 .doit = nl80211_set_qos_map,
9982 .policy = nl80211_policy,
9983 .flags = GENL_ADMIN_PERM,
9984 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9985 NL80211_FLAG_NEED_RTNL,
9989 /* notification functions */
9991 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9993 struct sk_buff *msg;
9994 struct nl80211_dump_wiphy_state state = {};
9996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10000 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
10005 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10006 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10009 static int nl80211_add_scan_req(struct sk_buff *msg,
10010 struct cfg80211_registered_device *rdev)
10012 struct cfg80211_scan_request *req = rdev->scan_req;
10013 struct nlattr *nest;
10019 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10021 goto nla_put_failure;
10022 for (i = 0; i < req->n_ssids; i++) {
10023 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10024 goto nla_put_failure;
10026 nla_nest_end(msg, nest);
10028 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10030 goto nla_put_failure;
10031 for (i = 0; i < req->n_channels; i++) {
10032 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10033 goto nla_put_failure;
10035 nla_nest_end(msg, nest);
10038 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10039 goto nla_put_failure;
10042 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10043 goto nla_put_failure;
10050 static int nl80211_send_scan_msg(struct sk_buff *msg,
10051 struct cfg80211_registered_device *rdev,
10052 struct wireless_dev *wdev,
10053 u32 portid, u32 seq, int flags,
10058 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10062 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10063 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10064 wdev->netdev->ifindex)) ||
10065 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10066 goto nla_put_failure;
10068 /* ignore errors and send incomplete event anyway */
10069 nl80211_add_scan_req(msg, rdev);
10071 return genlmsg_end(msg, hdr);
10074 genlmsg_cancel(msg, hdr);
10079 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10080 struct cfg80211_registered_device *rdev,
10081 struct net_device *netdev,
10082 u32 portid, u32 seq, int flags, u32 cmd)
10086 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10090 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10091 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10092 goto nla_put_failure;
10094 return genlmsg_end(msg, hdr);
10097 genlmsg_cancel(msg, hdr);
10101 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10102 struct wireless_dev *wdev)
10104 struct sk_buff *msg;
10106 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10110 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10111 NL80211_CMD_TRIGGER_SCAN) < 0) {
10116 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10117 NL80211_MCGRP_SCAN, GFP_KERNEL);
10120 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10121 struct wireless_dev *wdev, bool aborted)
10123 struct sk_buff *msg;
10125 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10129 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10130 aborted ? NL80211_CMD_SCAN_ABORTED :
10131 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10139 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10140 struct sk_buff *msg)
10145 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10146 NL80211_MCGRP_SCAN, GFP_KERNEL);
10149 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10150 struct net_device *netdev)
10152 struct sk_buff *msg;
10154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10158 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10159 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10164 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10165 NL80211_MCGRP_SCAN, GFP_KERNEL);
10168 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10169 struct net_device *netdev, u32 cmd)
10171 struct sk_buff *msg;
10173 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10177 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10182 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10183 NL80211_MCGRP_SCAN, GFP_KERNEL);
10187 * This can happen on global regulatory changes or device specific settings
10188 * based on custom world regulatory domains.
10190 void nl80211_send_reg_change_event(struct regulatory_request *request)
10192 struct sk_buff *msg;
10195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10199 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10205 /* Userspace can always count this one always being set */
10206 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10207 goto nla_put_failure;
10209 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10210 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10211 NL80211_REGDOM_TYPE_WORLD))
10212 goto nla_put_failure;
10213 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10214 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10215 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10216 goto nla_put_failure;
10217 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10218 request->intersect) {
10219 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10220 NL80211_REGDOM_TYPE_INTERSECTION))
10221 goto nla_put_failure;
10223 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10224 NL80211_REGDOM_TYPE_COUNTRY) ||
10225 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10227 goto nla_put_failure;
10230 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10231 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10232 goto nla_put_failure;
10234 genlmsg_end(msg, hdr);
10237 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10238 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10244 genlmsg_cancel(msg, hdr);
10248 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10249 struct net_device *netdev,
10250 const u8 *buf, size_t len,
10251 enum nl80211_commands cmd, gfp_t gfp)
10253 struct sk_buff *msg;
10256 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10260 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10266 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10267 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10268 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10269 goto nla_put_failure;
10271 genlmsg_end(msg, hdr);
10273 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10274 NL80211_MCGRP_MLME, gfp);
10278 genlmsg_cancel(msg, hdr);
10282 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10283 struct net_device *netdev, const u8 *buf,
10284 size_t len, gfp_t gfp)
10286 nl80211_send_mlme_event(rdev, netdev, buf, len,
10287 NL80211_CMD_AUTHENTICATE, gfp);
10290 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10291 struct net_device *netdev, const u8 *buf,
10292 size_t len, gfp_t gfp)
10294 nl80211_send_mlme_event(rdev, netdev, buf, len,
10295 NL80211_CMD_ASSOCIATE, gfp);
10298 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10299 struct net_device *netdev, const u8 *buf,
10300 size_t len, gfp_t gfp)
10302 nl80211_send_mlme_event(rdev, netdev, buf, len,
10303 NL80211_CMD_DEAUTHENTICATE, gfp);
10306 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10307 struct net_device *netdev, const u8 *buf,
10308 size_t len, gfp_t gfp)
10310 nl80211_send_mlme_event(rdev, netdev, buf, len,
10311 NL80211_CMD_DISASSOCIATE, gfp);
10314 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10317 struct wireless_dev *wdev = dev->ieee80211_ptr;
10318 struct wiphy *wiphy = wdev->wiphy;
10319 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10320 const struct ieee80211_mgmt *mgmt = (void *)buf;
10323 if (WARN_ON(len < 2))
10326 if (ieee80211_is_deauth(mgmt->frame_control))
10327 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10329 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10331 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10332 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
10334 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10336 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10337 struct net_device *netdev, int cmd,
10338 const u8 *addr, gfp_t gfp)
10340 struct sk_buff *msg;
10343 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10347 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10353 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10354 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10355 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10356 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10357 goto nla_put_failure;
10359 genlmsg_end(msg, hdr);
10361 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10362 NL80211_MCGRP_MLME, gfp);
10366 genlmsg_cancel(msg, hdr);
10370 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10371 struct net_device *netdev, const u8 *addr,
10374 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10378 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10379 struct net_device *netdev, const u8 *addr,
10382 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10386 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10387 struct net_device *netdev, const u8 *bssid,
10388 const u8 *req_ie, size_t req_ie_len,
10389 const u8 *resp_ie, size_t resp_ie_len,
10390 u16 status, gfp_t gfp)
10392 struct sk_buff *msg;
10395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10399 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10405 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10406 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10407 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10408 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10410 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10412 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10413 goto nla_put_failure;
10415 genlmsg_end(msg, hdr);
10417 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10418 NL80211_MCGRP_MLME, gfp);
10422 genlmsg_cancel(msg, hdr);
10427 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10428 struct net_device *netdev, const u8 *bssid,
10429 const u8 *req_ie, size_t req_ie_len,
10430 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10432 struct sk_buff *msg;
10435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10446 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10447 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10449 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10451 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10452 goto nla_put_failure;
10454 genlmsg_end(msg, hdr);
10456 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10457 NL80211_MCGRP_MLME, gfp);
10461 genlmsg_cancel(msg, hdr);
10466 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10467 struct net_device *netdev, u16 reason,
10468 const u8 *ie, size_t ie_len, bool from_ap)
10470 struct sk_buff *msg;
10473 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10477 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10483 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10484 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10485 (from_ap && reason &&
10486 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10488 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10489 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10490 goto nla_put_failure;
10492 genlmsg_end(msg, hdr);
10494 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10495 NL80211_MCGRP_MLME, GFP_KERNEL);
10499 genlmsg_cancel(msg, hdr);
10504 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10505 struct net_device *netdev, const u8 *bssid,
10508 struct sk_buff *msg;
10511 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10515 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10521 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10522 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10523 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10524 goto nla_put_failure;
10526 genlmsg_end(msg, hdr);
10528 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10529 NL80211_MCGRP_MLME, gfp);
10533 genlmsg_cancel(msg, hdr);
10537 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10538 const u8* ie, u8 ie_len, gfp_t gfp)
10540 struct wireless_dev *wdev = dev->ieee80211_ptr;
10541 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10542 struct sk_buff *msg;
10545 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10548 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10550 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10554 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10560 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10561 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10562 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10564 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10565 goto nla_put_failure;
10567 genlmsg_end(msg, hdr);
10569 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10570 NL80211_MCGRP_MLME, gfp);
10574 genlmsg_cancel(msg, hdr);
10577 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10579 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10580 struct net_device *netdev, const u8 *addr,
10581 enum nl80211_key_type key_type, int key_id,
10582 const u8 *tsc, gfp_t gfp)
10584 struct sk_buff *msg;
10587 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10591 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10597 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10598 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10599 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10600 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10602 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10603 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10604 goto nla_put_failure;
10606 genlmsg_end(msg, hdr);
10608 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10609 NL80211_MCGRP_MLME, gfp);
10613 genlmsg_cancel(msg, hdr);
10617 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10618 struct ieee80211_channel *channel_before,
10619 struct ieee80211_channel *channel_after)
10621 struct sk_buff *msg;
10623 struct nlattr *nl_freq;
10625 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10629 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10636 * Since we are applying the beacon hint to a wiphy we know its
10637 * wiphy_idx is valid
10639 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10640 goto nla_put_failure;
10643 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10645 goto nla_put_failure;
10646 if (nl80211_msg_put_channel(msg, channel_before, false))
10647 goto nla_put_failure;
10648 nla_nest_end(msg, nl_freq);
10651 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10653 goto nla_put_failure;
10654 if (nl80211_msg_put_channel(msg, channel_after, false))
10655 goto nla_put_failure;
10656 nla_nest_end(msg, nl_freq);
10658 genlmsg_end(msg, hdr);
10661 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10662 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10668 genlmsg_cancel(msg, hdr);
10672 static void nl80211_send_remain_on_chan_event(
10673 int cmd, struct cfg80211_registered_device *rdev,
10674 struct wireless_dev *wdev, u64 cookie,
10675 struct ieee80211_channel *chan,
10676 unsigned int duration, gfp_t gfp)
10678 struct sk_buff *msg;
10681 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10685 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10691 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10692 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10693 wdev->netdev->ifindex)) ||
10694 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10695 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
10696 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10697 NL80211_CHAN_NO_HT) ||
10698 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10699 goto nla_put_failure;
10701 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10702 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10703 goto nla_put_failure;
10705 genlmsg_end(msg, hdr);
10707 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10708 NL80211_MCGRP_MLME, gfp);
10712 genlmsg_cancel(msg, hdr);
10716 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10717 struct ieee80211_channel *chan,
10718 unsigned int duration, gfp_t gfp)
10720 struct wiphy *wiphy = wdev->wiphy;
10721 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10723 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
10724 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
10725 rdev, wdev, cookie, chan,
10728 EXPORT_SYMBOL(cfg80211_ready_on_channel);
10730 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10731 struct ieee80211_channel *chan,
10734 struct wiphy *wiphy = wdev->wiphy;
10735 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10737 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
10738 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10739 rdev, wdev, cookie, chan, 0, gfp);
10741 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
10743 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10744 struct station_info *sinfo, gfp_t gfp)
10746 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10747 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10748 struct sk_buff *msg;
10750 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10756 if (nl80211_send_station(msg, 0, 0, 0,
10757 rdev, dev, mac_addr, sinfo) < 0) {
10762 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10763 NL80211_MCGRP_MLME, gfp);
10765 EXPORT_SYMBOL(cfg80211_new_sta);
10767 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
10769 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10770 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10771 struct sk_buff *msg;
10774 trace_cfg80211_del_sta(dev, mac_addr);
10776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10780 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10786 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10787 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10788 goto nla_put_failure;
10790 genlmsg_end(msg, hdr);
10792 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10793 NL80211_MCGRP_MLME, gfp);
10797 genlmsg_cancel(msg, hdr);
10800 EXPORT_SYMBOL(cfg80211_del_sta);
10802 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10803 enum nl80211_connect_failed_reason reason,
10806 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10807 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10808 struct sk_buff *msg;
10811 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10815 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10821 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10822 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10823 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10824 goto nla_put_failure;
10826 genlmsg_end(msg, hdr);
10828 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10829 NL80211_MCGRP_MLME, gfp);
10833 genlmsg_cancel(msg, hdr);
10836 EXPORT_SYMBOL(cfg80211_conn_failed);
10838 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10839 const u8 *addr, gfp_t gfp)
10841 struct wireless_dev *wdev = dev->ieee80211_ptr;
10842 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10843 struct sk_buff *msg;
10845 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10850 msg = nlmsg_new(100, gfp);
10854 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10860 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10861 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10862 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10863 goto nla_put_failure;
10865 genlmsg_end(msg, hdr);
10866 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10870 genlmsg_cancel(msg, hdr);
10875 bool cfg80211_rx_spurious_frame(struct net_device *dev,
10876 const u8 *addr, gfp_t gfp)
10878 struct wireless_dev *wdev = dev->ieee80211_ptr;
10881 trace_cfg80211_rx_spurious_frame(dev, addr);
10883 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10884 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10885 trace_cfg80211_return_bool(false);
10888 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10890 trace_cfg80211_return_bool(ret);
10893 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
10895 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10896 const u8 *addr, gfp_t gfp)
10898 struct wireless_dev *wdev = dev->ieee80211_ptr;
10901 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10903 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10904 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10905 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10906 trace_cfg80211_return_bool(false);
10909 ret = __nl80211_unexpected_frame(dev,
10910 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10912 trace_cfg80211_return_bool(ret);
10915 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
10917 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
10918 struct wireless_dev *wdev, u32 nlportid,
10919 int freq, int sig_dbm,
10920 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
10922 struct net_device *netdev = wdev->netdev;
10923 struct sk_buff *msg;
10926 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10930 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10936 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10937 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10938 netdev->ifindex)) ||
10939 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10940 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10942 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10943 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10945 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
10946 goto nla_put_failure;
10948 genlmsg_end(msg, hdr);
10950 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10953 genlmsg_cancel(msg, hdr);
10958 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10959 const u8 *buf, size_t len, bool ack, gfp_t gfp)
10961 struct wiphy *wiphy = wdev->wiphy;
10962 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10963 struct net_device *netdev = wdev->netdev;
10964 struct sk_buff *msg;
10967 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10969 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10973 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10979 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10980 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10981 netdev->ifindex)) ||
10982 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10983 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10984 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10985 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10986 goto nla_put_failure;
10988 genlmsg_end(msg, hdr);
10990 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10991 NL80211_MCGRP_MLME, gfp);
10995 genlmsg_cancel(msg, hdr);
10998 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11000 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11001 enum nl80211_cqm_rssi_threshold_event rssi_event,
11004 struct wireless_dev *wdev = dev->ieee80211_ptr;
11005 struct wiphy *wiphy = wdev->wiphy;
11006 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11007 struct sk_buff *msg;
11008 struct nlattr *pinfoattr;
11011 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11017 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11023 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11024 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11025 goto nla_put_failure;
11027 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11029 goto nla_put_failure;
11031 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11033 goto nla_put_failure;
11035 nla_nest_end(msg, pinfoattr);
11037 genlmsg_end(msg, hdr);
11039 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11040 NL80211_MCGRP_MLME, gfp);
11044 genlmsg_cancel(msg, hdr);
11047 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11049 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11050 struct net_device *netdev, const u8 *bssid,
11051 const u8 *replay_ctr, gfp_t gfp)
11053 struct sk_buff *msg;
11054 struct nlattr *rekey_attr;
11057 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11061 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11067 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11068 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11069 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11070 goto nla_put_failure;
11072 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11074 goto nla_put_failure;
11076 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11077 NL80211_REPLAY_CTR_LEN, replay_ctr))
11078 goto nla_put_failure;
11080 nla_nest_end(msg, rekey_attr);
11082 genlmsg_end(msg, hdr);
11084 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11085 NL80211_MCGRP_MLME, gfp);
11089 genlmsg_cancel(msg, hdr);
11093 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11094 const u8 *replay_ctr, gfp_t gfp)
11096 struct wireless_dev *wdev = dev->ieee80211_ptr;
11097 struct wiphy *wiphy = wdev->wiphy;
11098 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11100 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11101 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11103 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11106 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11107 struct net_device *netdev, int index,
11108 const u8 *bssid, bool preauth, gfp_t gfp)
11110 struct sk_buff *msg;
11111 struct nlattr *attr;
11114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11118 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11124 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11125 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11126 goto nla_put_failure;
11128 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11130 goto nla_put_failure;
11132 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11133 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11135 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11136 goto nla_put_failure;
11138 nla_nest_end(msg, attr);
11140 genlmsg_end(msg, hdr);
11142 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11143 NL80211_MCGRP_MLME, gfp);
11147 genlmsg_cancel(msg, hdr);
11151 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11152 const u8 *bssid, bool preauth, gfp_t gfp)
11154 struct wireless_dev *wdev = dev->ieee80211_ptr;
11155 struct wiphy *wiphy = wdev->wiphy;
11156 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11158 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11159 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11161 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11163 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11164 struct net_device *netdev,
11165 struct cfg80211_chan_def *chandef,
11168 struct sk_buff *msg;
11171 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11175 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11181 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11182 goto nla_put_failure;
11184 if (nl80211_send_chandef(msg, chandef))
11185 goto nla_put_failure;
11187 genlmsg_end(msg, hdr);
11189 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11190 NL80211_MCGRP_MLME, gfp);
11194 genlmsg_cancel(msg, hdr);
11198 void cfg80211_ch_switch_notify(struct net_device *dev,
11199 struct cfg80211_chan_def *chandef)
11201 struct wireless_dev *wdev = dev->ieee80211_ptr;
11202 struct wiphy *wiphy = wdev->wiphy;
11203 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11205 ASSERT_WDEV_LOCK(wdev);
11207 trace_cfg80211_ch_switch_notify(dev, chandef);
11209 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11210 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11211 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11212 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11215 wdev->chandef = *chandef;
11216 wdev->preset_chandef = *chandef;
11217 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
11219 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11221 void cfg80211_cqm_txe_notify(struct net_device *dev,
11222 const u8 *peer, u32 num_packets,
11223 u32 rate, u32 intvl, gfp_t gfp)
11225 struct wireless_dev *wdev = dev->ieee80211_ptr;
11226 struct wiphy *wiphy = wdev->wiphy;
11227 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11228 struct sk_buff *msg;
11229 struct nlattr *pinfoattr;
11232 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11236 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11242 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11243 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11244 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11245 goto nla_put_failure;
11247 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11249 goto nla_put_failure;
11251 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11252 goto nla_put_failure;
11254 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11255 goto nla_put_failure;
11257 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11258 goto nla_put_failure;
11260 nla_nest_end(msg, pinfoattr);
11262 genlmsg_end(msg, hdr);
11264 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11265 NL80211_MCGRP_MLME, gfp);
11269 genlmsg_cancel(msg, hdr);
11272 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11275 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11276 const struct cfg80211_chan_def *chandef,
11277 enum nl80211_radar_event event,
11278 struct net_device *netdev, gfp_t gfp)
11280 struct sk_buff *msg;
11283 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11287 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11294 goto nla_put_failure;
11296 /* NOP and radar events don't need a netdev parameter */
11298 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11300 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11301 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11302 goto nla_put_failure;
11305 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11306 goto nla_put_failure;
11308 if (nl80211_send_chandef(msg, chandef))
11309 goto nla_put_failure;
11311 genlmsg_end(msg, hdr);
11313 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11314 NL80211_MCGRP_MLME, gfp);
11318 genlmsg_cancel(msg, hdr);
11322 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11323 const u8 *peer, u32 num_packets, gfp_t gfp)
11325 struct wireless_dev *wdev = dev->ieee80211_ptr;
11326 struct wiphy *wiphy = wdev->wiphy;
11327 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11328 struct sk_buff *msg;
11329 struct nlattr *pinfoattr;
11332 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11334 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11338 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11344 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11345 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11346 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11347 goto nla_put_failure;
11349 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11351 goto nla_put_failure;
11353 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11354 goto nla_put_failure;
11356 nla_nest_end(msg, pinfoattr);
11358 genlmsg_end(msg, hdr);
11360 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11361 NL80211_MCGRP_MLME, gfp);
11365 genlmsg_cancel(msg, hdr);
11368 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11370 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11371 u64 cookie, bool acked, gfp_t gfp)
11373 struct wireless_dev *wdev = dev->ieee80211_ptr;
11374 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11375 struct sk_buff *msg;
11378 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11385 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11391 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11392 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11393 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11394 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11395 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11396 goto nla_put_failure;
11398 genlmsg_end(msg, hdr);
11400 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11401 NL80211_MCGRP_MLME, gfp);
11405 genlmsg_cancel(msg, hdr);
11408 EXPORT_SYMBOL(cfg80211_probe_status);
11410 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11411 const u8 *frame, size_t len,
11412 int freq, int sig_dbm)
11414 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11415 struct sk_buff *msg;
11417 struct cfg80211_beacon_registration *reg;
11419 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11421 spin_lock_bh(&rdev->beacon_registrations_lock);
11422 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11423 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11425 spin_unlock_bh(&rdev->beacon_registrations_lock);
11429 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11431 goto nla_put_failure;
11433 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11435 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11437 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11438 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11439 goto nla_put_failure;
11441 genlmsg_end(msg, hdr);
11443 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11445 spin_unlock_bh(&rdev->beacon_registrations_lock);
11449 spin_unlock_bh(&rdev->beacon_registrations_lock);
11451 genlmsg_cancel(msg, hdr);
11454 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11457 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11458 struct cfg80211_wowlan_wakeup *wakeup,
11461 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11462 struct sk_buff *msg;
11466 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11469 size += wakeup->packet_present_len;
11471 msg = nlmsg_new(size, gfp);
11475 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11479 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11480 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11483 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11484 wdev->netdev->ifindex))
11488 struct nlattr *reasons;
11490 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11494 if (wakeup->disconnect &&
11495 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11497 if (wakeup->magic_pkt &&
11498 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11500 if (wakeup->gtk_rekey_failure &&
11501 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11503 if (wakeup->eap_identity_req &&
11504 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11506 if (wakeup->four_way_handshake &&
11507 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11509 if (wakeup->rfkill_release &&
11510 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11513 if (wakeup->pattern_idx >= 0 &&
11514 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11515 wakeup->pattern_idx))
11518 if (wakeup->tcp_match &&
11519 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11522 if (wakeup->tcp_connlost &&
11523 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11526 if (wakeup->tcp_nomoretokens &&
11528 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11531 if (wakeup->packet) {
11532 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11533 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11535 if (!wakeup->packet_80211) {
11537 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11539 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11542 if (wakeup->packet_len &&
11543 nla_put_u32(msg, len_attr, wakeup->packet_len))
11546 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11551 nla_nest_end(msg, reasons);
11554 genlmsg_end(msg, hdr);
11556 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11557 NL80211_MCGRP_MLME, gfp);
11563 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11566 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11567 enum nl80211_tdls_operation oper,
11568 u16 reason_code, gfp_t gfp)
11570 struct wireless_dev *wdev = dev->ieee80211_ptr;
11571 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11572 struct sk_buff *msg;
11575 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11588 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11589 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11590 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11591 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11592 (reason_code > 0 &&
11593 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11594 goto nla_put_failure;
11596 genlmsg_end(msg, hdr);
11598 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11599 NL80211_MCGRP_MLME, gfp);
11603 genlmsg_cancel(msg, hdr);
11606 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11608 static int nl80211_netlink_notify(struct notifier_block * nb,
11609 unsigned long state,
11612 struct netlink_notify *notify = _notify;
11613 struct cfg80211_registered_device *rdev;
11614 struct wireless_dev *wdev;
11615 struct cfg80211_beacon_registration *reg, *tmp;
11617 if (state != NETLINK_URELEASE)
11618 return NOTIFY_DONE;
11622 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11623 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
11624 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11626 spin_lock_bh(&rdev->beacon_registrations_lock);
11627 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11629 if (reg->nlportid == notify->portid) {
11630 list_del(®->list);
11635 spin_unlock_bh(&rdev->beacon_registrations_lock);
11640 return NOTIFY_DONE;
11643 static struct notifier_block nl80211_netlink_notifier = {
11644 .notifier_call = nl80211_netlink_notify,
11647 void cfg80211_ft_event(struct net_device *netdev,
11648 struct cfg80211_ft_event_params *ft_event)
11650 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11651 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11652 struct sk_buff *msg;
11655 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11657 if (!ft_event->target_ap)
11660 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11664 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11668 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11669 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11670 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11673 if (ft_event->ies &&
11674 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11676 if (ft_event->ric_ies &&
11677 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11678 ft_event->ric_ies))
11681 genlmsg_end(msg, hdr);
11683 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11684 NL80211_MCGRP_MLME, GFP_KERNEL);
11689 EXPORT_SYMBOL(cfg80211_ft_event);
11691 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11693 struct cfg80211_registered_device *rdev;
11694 struct sk_buff *msg;
11698 rdev = wiphy_to_dev(wdev->wiphy);
11699 if (!rdev->crit_proto_nlportid)
11702 nlportid = rdev->crit_proto_nlportid;
11703 rdev->crit_proto_nlportid = 0;
11705 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11709 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11711 goto nla_put_failure;
11713 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11714 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11715 goto nla_put_failure;
11717 genlmsg_end(msg, hdr);
11719 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11724 genlmsg_cancel(msg, hdr);
11728 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11730 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11732 struct wiphy *wiphy = wdev->wiphy;
11733 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11734 struct sk_buff *msg;
11737 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11741 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11745 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11746 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11747 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11750 genlmsg_end(msg, hdr);
11752 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11753 NL80211_MCGRP_MLME, GFP_KERNEL);
11759 /* initialisation/exit functions */
11761 int nl80211_init(void)
11765 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11770 err = netlink_register_notifier(&nl80211_netlink_notifier);
11776 genl_unregister_family(&nl80211_fam);
11780 void nl80211_exit(void)
11782 netlink_unregister_notifier(&nl80211_netlink_notifier);
11783 genl_unregister_family(&nl80211_fam);