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_BINARY },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
385 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
386 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
387 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
388 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
389 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
392 /* policy for the key attributes */
393 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
394 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
395 [NL80211_KEY_IDX] = { .type = NLA_U8 },
396 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
397 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
398 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
399 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
400 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
401 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
404 /* policy for the key default flags */
405 static const struct nla_policy
406 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
407 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
408 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
411 /* policy for WoWLAN attributes */
412 static const struct nla_policy
413 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
414 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
418 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
419 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
422 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
425 static const struct nla_policy
426 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
427 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
428 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
429 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
430 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
431 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
432 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
434 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
436 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
437 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
439 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
440 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
444 /* policy for coalesce rule attributes */
445 static const struct nla_policy
446 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
447 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
448 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
449 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
452 /* policy for GTK rekey offload attributes */
453 static const struct nla_policy
454 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
455 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
456 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
457 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
460 static const struct nla_policy
461 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
462 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
463 .len = IEEE80211_MAX_SSID_LEN },
464 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
467 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
468 struct netlink_callback *cb,
469 struct cfg80211_registered_device **rdev,
470 struct wireless_dev **wdev)
477 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
478 nl80211_fam.attrbuf, nl80211_fam.maxattr,
483 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
484 nl80211_fam.attrbuf);
486 err = PTR_ERR(*wdev);
489 *rdev = wiphy_to_rdev((*wdev)->wiphy);
490 /* 0 is the first index - add 1 to parse only once */
491 cb->args[0] = (*rdev)->wiphy_idx + 1;
492 cb->args[1] = (*wdev)->identifier;
494 /* subtract the 1 again here */
495 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
496 struct wireless_dev *tmp;
502 *rdev = wiphy_to_rdev(wiphy);
505 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
506 if (tmp->identifier == cb->args[1]) {
524 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
530 static bool is_valid_ie_attr(const struct nlattr *attr)
538 pos = nla_data(attr);
559 /* message building helper */
560 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
563 /* since there is no private header just add the generic one */
564 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
567 static int nl80211_msg_put_channel(struct sk_buff *msg,
568 struct ieee80211_channel *chan,
571 /* Some channels must be completely excluded from the
572 * list to protect old user-space tools from breaking
574 if (!large && chan->flags &
575 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
578 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
580 goto nla_put_failure;
582 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
583 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
584 goto nla_put_failure;
585 if (chan->flags & IEEE80211_CHAN_NO_IR) {
586 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
587 goto nla_put_failure;
588 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
589 goto nla_put_failure;
591 if (chan->flags & IEEE80211_CHAN_RADAR) {
592 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
593 goto nla_put_failure;
597 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
601 goto nla_put_failure;
602 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
604 goto nla_put_failure;
606 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
608 goto nla_put_failure;
613 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
614 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
615 goto nla_put_failure;
616 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
617 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
618 goto nla_put_failure;
619 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
620 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
621 goto nla_put_failure;
622 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
623 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
624 goto nla_put_failure;
625 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
626 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
627 goto nla_put_failure;
628 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
629 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
630 goto nla_put_failure;
631 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
632 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
633 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
636 goto nla_put_failure;
639 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
640 DBM_TO_MBM(chan->max_power)))
641 goto nla_put_failure;
649 /* netlink command implementations */
656 bool def_uni, def_multi;
659 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
661 struct nlattr *tb[NL80211_KEY_MAX + 1];
662 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
667 k->def = !!tb[NL80211_KEY_DEFAULT];
668 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
677 if (tb[NL80211_KEY_IDX])
678 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
680 if (tb[NL80211_KEY_DATA]) {
681 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
682 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
685 if (tb[NL80211_KEY_SEQ]) {
686 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
687 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
690 if (tb[NL80211_KEY_CIPHER])
691 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
693 if (tb[NL80211_KEY_TYPE]) {
694 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
695 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
699 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
700 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
701 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
702 tb[NL80211_KEY_DEFAULT_TYPES],
703 nl80211_key_default_policy);
707 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
708 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
714 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
716 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
717 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
718 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
721 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
722 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
723 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
726 if (info->attrs[NL80211_ATTR_KEY_IDX])
727 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
729 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
730 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
732 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
733 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
742 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
743 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
744 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
748 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
749 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
750 int err = nla_parse_nested(
751 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
752 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
753 nl80211_key_default_policy);
757 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
758 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
764 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
768 memset(k, 0, sizeof(*k));
772 if (info->attrs[NL80211_ATTR_KEY])
773 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
775 err = nl80211_parse_key_old(info, k);
780 if (k->def && k->defmgmt)
784 if (k->def_uni || !k->def_multi)
790 if (k->idx < 4 || k->idx > 5)
793 if (k->idx < 0 || k->idx > 3)
796 if (k->idx < 0 || k->idx > 5)
804 static struct cfg80211_cached_keys *
805 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
806 struct nlattr *keys, bool *no_ht)
808 struct key_parse parse;
810 struct cfg80211_cached_keys *result;
811 int rem, err, def = 0;
813 result = kzalloc(sizeof(*result), GFP_KERNEL);
815 return ERR_PTR(-ENOMEM);
818 result->defmgmt = -1;
820 nla_for_each_nested(key, keys, rem) {
821 memset(&parse, 0, sizeof(parse));
824 err = nl80211_parse_key_new(key, &parse);
830 if (parse.idx < 0 || parse.idx > 4)
836 result->def = parse.idx;
837 if (!parse.def_uni || !parse.def_multi)
839 } else if (parse.defmgmt)
841 err = cfg80211_validate_key_settings(rdev, &parse.p,
842 parse.idx, false, NULL);
845 result->params[parse.idx].cipher = parse.p.cipher;
846 result->params[parse.idx].key_len = parse.p.key_len;
847 result->params[parse.idx].key = result->data[parse.idx];
848 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
850 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
851 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
863 static int nl80211_key_allowed(struct wireless_dev *wdev)
865 ASSERT_WDEV_LOCK(wdev);
867 switch (wdev->iftype) {
868 case NL80211_IFTYPE_AP:
869 case NL80211_IFTYPE_AP_VLAN:
870 case NL80211_IFTYPE_P2P_GO:
871 case NL80211_IFTYPE_MESH_POINT:
873 case NL80211_IFTYPE_ADHOC:
874 case NL80211_IFTYPE_STATION:
875 case NL80211_IFTYPE_P2P_CLIENT:
876 if (!wdev->current_bss)
886 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
889 struct ieee80211_channel *chan;
893 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
894 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
899 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
901 struct nlattr *nl_modes = nla_nest_start(msg, attr);
905 goto nla_put_failure;
909 if ((ifmodes & 1) && nla_put_flag(msg, i))
910 goto nla_put_failure;
915 nla_nest_end(msg, nl_modes);
922 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
926 struct nlattr *nl_combis;
929 nl_combis = nla_nest_start(msg,
930 NL80211_ATTR_INTERFACE_COMBINATIONS);
932 goto nla_put_failure;
934 for (i = 0; i < wiphy->n_iface_combinations; i++) {
935 const struct ieee80211_iface_combination *c;
936 struct nlattr *nl_combi, *nl_limits;
938 c = &wiphy->iface_combinations[i];
940 nl_combi = nla_nest_start(msg, i + 1);
942 goto nla_put_failure;
944 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
946 goto nla_put_failure;
948 for (j = 0; j < c->n_limits; j++) {
949 struct nlattr *nl_limit;
951 nl_limit = nla_nest_start(msg, j + 1);
953 goto nla_put_failure;
954 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
956 goto nla_put_failure;
957 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
959 goto nla_put_failure;
960 nla_nest_end(msg, nl_limit);
963 nla_nest_end(msg, nl_limits);
965 if (c->beacon_int_infra_match &&
966 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
967 goto nla_put_failure;
968 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
969 c->num_different_channels) ||
970 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
972 goto nla_put_failure;
974 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
975 c->radar_detect_widths) ||
976 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
977 c->radar_detect_regions)))
978 goto nla_put_failure;
980 nla_nest_end(msg, nl_combi);
983 nla_nest_end(msg, nl_combis);
991 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
994 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
995 struct nlattr *nl_tcp;
1000 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1004 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1005 tcp->data_payload_max))
1008 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1009 tcp->data_payload_max))
1012 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1015 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1016 sizeof(*tcp->tok), tcp->tok))
1019 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1020 tcp->data_interval_max))
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1024 tcp->wake_payload_max))
1027 nla_nest_end(msg, nl_tcp);
1031 static int nl80211_send_wowlan(struct sk_buff *msg,
1032 struct cfg80211_registered_device *rdev,
1035 struct nlattr *nl_wowlan;
1037 if (!rdev->wiphy.wowlan)
1040 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1044 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1045 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1046 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1047 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1048 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1049 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1050 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1051 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1052 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1062 if (rdev->wiphy.wowlan->n_patterns) {
1063 struct nl80211_pattern_support pat = {
1064 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1065 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1066 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1067 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1070 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1075 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1078 nla_nest_end(msg, nl_wowlan);
1084 static int nl80211_send_coalesce(struct sk_buff *msg,
1085 struct cfg80211_registered_device *rdev)
1087 struct nl80211_coalesce_rule_support rule;
1089 if (!rdev->wiphy.coalesce)
1092 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1093 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1094 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1095 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1096 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1097 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1099 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1105 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1106 struct ieee80211_supported_band *sband)
1108 struct nlattr *nl_rates, *nl_rate;
1109 struct ieee80211_rate *rate;
1113 if (sband->ht_cap.ht_supported &&
1114 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1115 sizeof(sband->ht_cap.mcs),
1116 &sband->ht_cap.mcs) ||
1117 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1118 sband->ht_cap.cap) ||
1119 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1120 sband->ht_cap.ampdu_factor) ||
1121 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1122 sband->ht_cap.ampdu_density)))
1126 if (sband->vht_cap.vht_supported &&
1127 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1128 sizeof(sband->vht_cap.vht_mcs),
1129 &sband->vht_cap.vht_mcs) ||
1130 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1131 sband->vht_cap.cap)))
1135 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1139 for (i = 0; i < sband->n_bitrates; i++) {
1140 nl_rate = nla_nest_start(msg, i);
1144 rate = &sband->bitrates[i];
1145 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1148 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1150 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1153 nla_nest_end(msg, nl_rate);
1156 nla_nest_end(msg, nl_rates);
1162 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1163 const struct ieee80211_txrx_stypes *mgmt_stypes)
1166 struct nlattr *nl_ftypes, *nl_ifs;
1167 enum nl80211_iftype ift;
1173 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1177 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1178 nl_ftypes = nla_nest_start(msg, ift);
1182 stypes = mgmt_stypes[ift].tx;
1185 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1186 (i << 4) | IEEE80211_FTYPE_MGMT))
1191 nla_nest_end(msg, nl_ftypes);
1194 nla_nest_end(msg, nl_ifs);
1196 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1200 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1201 nl_ftypes = nla_nest_start(msg, ift);
1205 stypes = mgmt_stypes[ift].rx;
1208 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1209 (i << 4) | IEEE80211_FTYPE_MGMT))
1214 nla_nest_end(msg, nl_ftypes);
1216 nla_nest_end(msg, nl_ifs);
1221 struct nl80211_dump_wiphy_state {
1224 long split_start, band_start, chan_start;
1228 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1229 enum nl80211_commands cmd,
1230 struct sk_buff *msg, u32 portid, u32 seq,
1231 int flags, struct nl80211_dump_wiphy_state *state)
1234 struct nlattr *nl_bands, *nl_band;
1235 struct nlattr *nl_freqs, *nl_freq;
1236 struct nlattr *nl_cmds;
1237 enum ieee80211_band band;
1238 struct ieee80211_channel *chan;
1240 const struct ieee80211_txrx_stypes *mgmt_stypes =
1241 rdev->wiphy.mgmt_stypes;
1244 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1248 if (WARN_ON(!state))
1251 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1252 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1253 wiphy_name(&rdev->wiphy)) ||
1254 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1255 cfg80211_rdev_list_generation))
1256 goto nla_put_failure;
1258 if (cmd != NL80211_CMD_NEW_WIPHY)
1261 switch (state->split_start) {
1263 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1264 rdev->wiphy.retry_short) ||
1265 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1266 rdev->wiphy.retry_long) ||
1267 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1268 rdev->wiphy.frag_threshold) ||
1269 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1270 rdev->wiphy.rts_threshold) ||
1271 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1272 rdev->wiphy.coverage_class) ||
1273 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1274 rdev->wiphy.max_scan_ssids) ||
1275 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1276 rdev->wiphy.max_sched_scan_ssids) ||
1277 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1278 rdev->wiphy.max_scan_ie_len) ||
1279 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1280 rdev->wiphy.max_sched_scan_ie_len) ||
1281 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1282 rdev->wiphy.max_match_sets))
1283 goto nla_put_failure;
1285 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1286 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1287 goto nla_put_failure;
1288 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1289 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1290 goto nla_put_failure;
1291 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1292 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1293 goto nla_put_failure;
1294 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1295 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1296 goto nla_put_failure;
1297 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1298 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1299 goto nla_put_failure;
1300 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1301 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1302 goto nla_put_failure;
1303 state->split_start++;
1307 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1308 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1309 rdev->wiphy.cipher_suites))
1310 goto nla_put_failure;
1312 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1313 rdev->wiphy.max_num_pmkids))
1314 goto nla_put_failure;
1316 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1317 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1318 goto nla_put_failure;
1320 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1321 rdev->wiphy.available_antennas_tx) ||
1322 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1323 rdev->wiphy.available_antennas_rx))
1324 goto nla_put_failure;
1326 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1327 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1328 rdev->wiphy.probe_resp_offload))
1329 goto nla_put_failure;
1331 if ((rdev->wiphy.available_antennas_tx ||
1332 rdev->wiphy.available_antennas_rx) &&
1333 rdev->ops->get_antenna) {
1334 u32 tx_ant = 0, rx_ant = 0;
1336 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1338 if (nla_put_u32(msg,
1339 NL80211_ATTR_WIPHY_ANTENNA_TX,
1342 NL80211_ATTR_WIPHY_ANTENNA_RX,
1344 goto nla_put_failure;
1348 state->split_start++;
1352 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1353 rdev->wiphy.interface_modes))
1354 goto nla_put_failure;
1355 state->split_start++;
1359 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1361 goto nla_put_failure;
1363 for (band = state->band_start;
1364 band < IEEE80211_NUM_BANDS; band++) {
1365 struct ieee80211_supported_band *sband;
1367 sband = rdev->wiphy.bands[band];
1372 nl_band = nla_nest_start(msg, band);
1374 goto nla_put_failure;
1376 switch (state->chan_start) {
1378 if (nl80211_send_band_rateinfo(msg, sband))
1379 goto nla_put_failure;
1380 state->chan_start++;
1384 /* add frequencies */
1385 nl_freqs = nla_nest_start(
1386 msg, NL80211_BAND_ATTR_FREQS);
1388 goto nla_put_failure;
1390 for (i = state->chan_start - 1;
1391 i < sband->n_channels;
1393 nl_freq = nla_nest_start(msg, i);
1395 goto nla_put_failure;
1397 chan = &sband->channels[i];
1399 if (nl80211_msg_put_channel(
1402 goto nla_put_failure;
1404 nla_nest_end(msg, nl_freq);
1408 if (i < sband->n_channels)
1409 state->chan_start = i + 2;
1411 state->chan_start = 0;
1412 nla_nest_end(msg, nl_freqs);
1415 nla_nest_end(msg, nl_band);
1418 /* start again here */
1419 if (state->chan_start)
1424 nla_nest_end(msg, nl_bands);
1426 if (band < IEEE80211_NUM_BANDS)
1427 state->band_start = band + 1;
1429 state->band_start = 0;
1431 /* if bands & channels are done, continue outside */
1432 if (state->band_start == 0 && state->chan_start == 0)
1433 state->split_start++;
1437 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1439 goto nla_put_failure;
1442 #define CMD(op, n) \
1444 if (rdev->ops->op) { \
1446 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1447 goto nla_put_failure; \
1451 CMD(add_virtual_intf, NEW_INTERFACE);
1452 CMD(change_virtual_intf, SET_INTERFACE);
1453 CMD(add_key, NEW_KEY);
1454 CMD(start_ap, START_AP);
1455 CMD(add_station, NEW_STATION);
1456 CMD(add_mpath, NEW_MPATH);
1457 CMD(update_mesh_config, SET_MESH_CONFIG);
1458 CMD(change_bss, SET_BSS);
1459 CMD(auth, AUTHENTICATE);
1460 CMD(assoc, ASSOCIATE);
1461 CMD(deauth, DEAUTHENTICATE);
1462 CMD(disassoc, DISASSOCIATE);
1463 CMD(join_ibss, JOIN_IBSS);
1464 CMD(join_mesh, JOIN_MESH);
1465 CMD(set_pmksa, SET_PMKSA);
1466 CMD(del_pmksa, DEL_PMKSA);
1467 CMD(flush_pmksa, FLUSH_PMKSA);
1468 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1469 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1470 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1471 CMD(mgmt_tx, FRAME);
1472 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1473 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1475 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1476 goto nla_put_failure;
1478 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1479 rdev->ops->join_mesh) {
1481 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1482 goto nla_put_failure;
1484 CMD(set_wds_peer, SET_WDS_PEER);
1485 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1486 CMD(tdls_mgmt, TDLS_MGMT);
1487 CMD(tdls_oper, TDLS_OPER);
1489 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1490 CMD(sched_scan_start, START_SCHED_SCAN);
1491 CMD(probe_client, PROBE_CLIENT);
1492 CMD(set_noack_map, SET_NOACK_MAP);
1493 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1495 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1496 goto nla_put_failure;
1498 CMD(start_p2p_device, START_P2P_DEVICE);
1499 CMD(set_mcast_rate, SET_MCAST_RATE);
1500 #ifdef CONFIG_NL80211_TESTMODE
1501 CMD(testmode_cmd, TESTMODE);
1504 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1505 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1506 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1507 CMD(channel_switch, CHANNEL_SWITCH);
1508 CMD(set_qos_map, SET_QOS_MAP);
1510 /* add into the if now */
1513 if (rdev->ops->connect || rdev->ops->auth) {
1515 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1516 goto nla_put_failure;
1519 if (rdev->ops->disconnect || rdev->ops->deauth) {
1521 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1522 goto nla_put_failure;
1525 nla_nest_end(msg, nl_cmds);
1526 state->split_start++;
1530 if (rdev->ops->remain_on_channel &&
1531 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1533 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1534 rdev->wiphy.max_remain_on_channel_duration))
1535 goto nla_put_failure;
1537 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1538 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1539 goto nla_put_failure;
1541 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1542 goto nla_put_failure;
1543 state->split_start++;
1548 if (nl80211_send_wowlan(msg, rdev, state->split))
1549 goto nla_put_failure;
1550 state->split_start++;
1554 state->split_start++;
1557 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1558 rdev->wiphy.software_iftypes))
1559 goto nla_put_failure;
1561 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1563 goto nla_put_failure;
1565 state->split_start++;
1569 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1570 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1571 rdev->wiphy.ap_sme_capa))
1572 goto nla_put_failure;
1574 features = rdev->wiphy.features;
1576 * We can only add the per-channel limit information if the
1577 * dump is split, otherwise it makes it too big. Therefore
1578 * only advertise it in that case.
1581 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1582 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1583 goto nla_put_failure;
1585 if (rdev->wiphy.ht_capa_mod_mask &&
1586 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1587 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1588 rdev->wiphy.ht_capa_mod_mask))
1589 goto nla_put_failure;
1591 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1592 rdev->wiphy.max_acl_mac_addrs &&
1593 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1594 rdev->wiphy.max_acl_mac_addrs))
1595 goto nla_put_failure;
1598 * Any information below this point is only available to
1599 * applications that can deal with it being split. This
1600 * helps ensure that newly added capabilities don't break
1601 * older tools by overrunning their buffers.
1603 * We still increment split_start so that in the split
1604 * case we'll continue with more data in the next round,
1605 * but break unconditionally so unsplit data stops here.
1607 state->split_start++;
1610 if (rdev->wiphy.extended_capabilities &&
1611 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1612 rdev->wiphy.extended_capabilities_len,
1613 rdev->wiphy.extended_capabilities) ||
1614 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1615 rdev->wiphy.extended_capabilities_len,
1616 rdev->wiphy.extended_capabilities_mask)))
1617 goto nla_put_failure;
1619 if (rdev->wiphy.vht_capa_mod_mask &&
1620 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1621 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1622 rdev->wiphy.vht_capa_mod_mask))
1623 goto nla_put_failure;
1625 state->split_start++;
1628 if (nl80211_send_coalesce(msg, rdev))
1629 goto nla_put_failure;
1631 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1632 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1633 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1634 goto nla_put_failure;
1636 if (rdev->wiphy.max_ap_assoc_sta &&
1637 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1638 rdev->wiphy.max_ap_assoc_sta))
1639 goto nla_put_failure;
1641 state->split_start++;
1644 if (rdev->wiphy.n_vendor_commands) {
1645 const struct nl80211_vendor_cmd_info *info;
1646 struct nlattr *nested;
1648 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1650 goto nla_put_failure;
1652 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1653 info = &rdev->wiphy.vendor_commands[i].info;
1654 if (nla_put(msg, i + 1, sizeof(*info), info))
1655 goto nla_put_failure;
1657 nla_nest_end(msg, nested);
1660 if (rdev->wiphy.n_vendor_events) {
1661 const struct nl80211_vendor_cmd_info *info;
1662 struct nlattr *nested;
1664 nested = nla_nest_start(msg,
1665 NL80211_ATTR_VENDOR_EVENTS);
1667 goto nla_put_failure;
1669 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1670 info = &rdev->wiphy.vendor_events[i];
1671 if (nla_put(msg, i + 1, sizeof(*info), info))
1672 goto nla_put_failure;
1674 nla_nest_end(msg, nested);
1676 state->split_start++;
1679 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1680 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1681 rdev->wiphy.max_num_csa_counters))
1682 goto nla_put_failure;
1685 state->split_start = 0;
1689 return genlmsg_end(msg, hdr);
1692 genlmsg_cancel(msg, hdr);
1696 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1697 struct netlink_callback *cb,
1698 struct nl80211_dump_wiphy_state *state)
1700 struct nlattr **tb = nl80211_fam.attrbuf;
1701 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1702 tb, nl80211_fam.maxattr, nl80211_policy);
1703 /* ignore parse errors for backward compatibility */
1707 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1708 if (tb[NL80211_ATTR_WIPHY])
1709 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1710 if (tb[NL80211_ATTR_WDEV])
1711 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1712 if (tb[NL80211_ATTR_IFINDEX]) {
1713 struct net_device *netdev;
1714 struct cfg80211_registered_device *rdev;
1715 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1717 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1720 if (netdev->ieee80211_ptr) {
1721 rdev = wiphy_to_rdev(
1722 netdev->ieee80211_ptr->wiphy);
1723 state->filter_wiphy = rdev->wiphy_idx;
1730 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1733 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1734 struct cfg80211_registered_device *rdev;
1738 state = kzalloc(sizeof(*state), GFP_KERNEL);
1743 state->filter_wiphy = -1;
1744 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1750 cb->args[0] = (long)state;
1753 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1754 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1756 if (++idx <= state->start)
1758 if (state->filter_wiphy != -1 &&
1759 state->filter_wiphy != rdev->wiphy_idx)
1761 /* attempt to fit multiple wiphy data chunks into the skb */
1763 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1765 NETLINK_CB(cb->skb).portid,
1767 NLM_F_MULTI, state);
1770 * If sending the wiphy data didn't fit (ENOBUFS
1771 * or EMSGSIZE returned), this SKB is still
1772 * empty (so it's not too big because another
1773 * wiphy dataset is already in the skb) and
1774 * we've not tried to adjust the dump allocation
1775 * yet ... then adjust the alloc size to be
1776 * bigger, and return 1 but with the empty skb.
1777 * This results in an empty message being RX'ed
1778 * in userspace, but that is ignored.
1780 * We can then retry with the larger buffer.
1782 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1783 !skb->len && !state->split &&
1784 cb->min_dump_alloc < 4096) {
1785 cb->min_dump_alloc = 4096;
1786 state->split_start = 0;
1793 } while (state->split_start > 0);
1803 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1805 kfree((void *)cb->args[0]);
1809 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1811 struct sk_buff *msg;
1812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1813 struct nl80211_dump_wiphy_state state = {};
1815 msg = nlmsg_new(4096, GFP_KERNEL);
1819 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1820 info->snd_portid, info->snd_seq, 0,
1826 return genlmsg_reply(msg, info);
1829 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1830 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1831 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1832 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1833 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1834 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1837 static int parse_txq_params(struct nlattr *tb[],
1838 struct ieee80211_txq_params *txq_params)
1840 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1841 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1842 !tb[NL80211_TXQ_ATTR_AIFS])
1845 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1846 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1847 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1848 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1849 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1851 if (txq_params->ac >= NL80211_NUM_ACS)
1857 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1860 * You can only set the channel explicitly for WDS interfaces,
1861 * all others have their channel managed via their respective
1862 * "establish a connection" command (connect, join, ...)
1864 * For AP/GO and mesh mode, the channel can be set with the
1865 * channel userspace API, but is only stored and passed to the
1866 * low-level driver when the AP starts or the mesh is joined.
1867 * This is for backward compatibility, userspace can also give
1868 * the channel in the start-ap or join-mesh commands instead.
1870 * Monitors are special as they are normally slaved to
1871 * whatever else is going on, so they have their own special
1872 * operation to set the monitor channel if possible.
1875 wdev->iftype == NL80211_IFTYPE_AP ||
1876 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1877 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1878 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1881 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1882 struct genl_info *info,
1883 struct cfg80211_chan_def *chandef)
1887 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1890 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1892 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1893 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1894 chandef->center_freq1 = control_freq;
1895 chandef->center_freq2 = 0;
1897 /* Primary channel not allowed */
1898 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1901 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1902 enum nl80211_channel_type chantype;
1904 chantype = nla_get_u32(
1905 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1908 case NL80211_CHAN_NO_HT:
1909 case NL80211_CHAN_HT20:
1910 case NL80211_CHAN_HT40PLUS:
1911 case NL80211_CHAN_HT40MINUS:
1912 cfg80211_chandef_create(chandef, chandef->chan,
1918 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1920 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1921 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1922 chandef->center_freq1 =
1924 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1925 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1926 chandef->center_freq2 =
1928 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1931 if (!cfg80211_chandef_valid(chandef))
1934 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1935 IEEE80211_CHAN_DISABLED))
1938 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1939 chandef->width == NL80211_CHAN_WIDTH_10) &&
1940 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1946 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1947 struct net_device *dev,
1948 struct genl_info *info)
1950 struct cfg80211_chan_def chandef;
1952 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1953 struct wireless_dev *wdev = NULL;
1956 wdev = dev->ieee80211_ptr;
1957 if (!nl80211_can_set_dev_channel(wdev))
1960 iftype = wdev->iftype;
1962 result = nl80211_parse_chandef(rdev, info, &chandef);
1967 case NL80211_IFTYPE_AP:
1968 case NL80211_IFTYPE_P2P_GO:
1969 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
1973 if (wdev->beacon_interval) {
1974 if (!dev || !rdev->ops->set_ap_chanwidth ||
1975 !(rdev->wiphy.features &
1976 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1981 /* Only allow dynamic channel width changes */
1982 if (chandef.chan != wdev->preset_chandef.chan) {
1986 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1990 wdev->preset_chandef = chandef;
1993 case NL80211_IFTYPE_MESH_POINT:
1994 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1996 case NL80211_IFTYPE_MONITOR:
1997 result = cfg80211_set_monitor_channel(rdev, &chandef);
2006 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2008 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2009 struct net_device *netdev = info->user_ptr[1];
2011 return __nl80211_set_channel(rdev, netdev, info);
2014 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2016 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2017 struct net_device *dev = info->user_ptr[1];
2018 struct wireless_dev *wdev = dev->ieee80211_ptr;
2021 if (!info->attrs[NL80211_ATTR_MAC])
2024 if (netif_running(dev))
2027 if (!rdev->ops->set_wds_peer)
2030 if (wdev->iftype != NL80211_IFTYPE_WDS)
2033 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2034 return rdev_set_wds_peer(rdev, dev, bssid);
2038 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2040 struct cfg80211_registered_device *rdev;
2041 struct net_device *netdev = NULL;
2042 struct wireless_dev *wdev;
2043 int result = 0, rem_txq_params = 0;
2044 struct nlattr *nl_txq_params;
2046 u8 retry_short = 0, retry_long = 0;
2047 u32 frag_threshold = 0, rts_threshold = 0;
2048 u8 coverage_class = 0;
2053 * Try to find the wiphy and netdev. Normally this
2054 * function shouldn't need the netdev, but this is
2055 * done for backward compatibility -- previously
2056 * setting the channel was done per wiphy, but now
2057 * it is per netdev. Previous userland like hostapd
2058 * also passed a netdev to set_wiphy, so that it is
2059 * possible to let that go to the right netdev!
2062 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2063 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2065 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2066 if (netdev && netdev->ieee80211_ptr)
2067 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2073 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2076 return PTR_ERR(rdev);
2081 wdev = netdev->ieee80211_ptr;
2084 * end workaround code, by now the rdev is available
2085 * and locked, and wdev may or may not be NULL.
2088 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2089 result = cfg80211_dev_rename(
2090 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2095 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2096 struct ieee80211_txq_params txq_params;
2097 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2099 if (!rdev->ops->set_txq_params)
2105 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2106 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2109 if (!netif_running(netdev))
2112 nla_for_each_nested(nl_txq_params,
2113 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2115 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2116 nla_data(nl_txq_params),
2117 nla_len(nl_txq_params),
2121 result = parse_txq_params(tb, &txq_params);
2125 result = rdev_set_txq_params(rdev, netdev,
2132 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2133 result = __nl80211_set_channel(
2135 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2141 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2142 struct wireless_dev *txp_wdev = wdev;
2143 enum nl80211_tx_power_setting type;
2146 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2149 if (!rdev->ops->set_tx_power)
2152 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2153 type = nla_get_u32(info->attrs[idx]);
2155 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2156 (type != NL80211_TX_POWER_AUTOMATIC))
2159 if (type != NL80211_TX_POWER_AUTOMATIC) {
2160 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2161 mbm = nla_get_u32(info->attrs[idx]);
2164 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2169 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2170 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2172 if ((!rdev->wiphy.available_antennas_tx &&
2173 !rdev->wiphy.available_antennas_rx) ||
2174 !rdev->ops->set_antenna)
2177 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2178 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2180 /* reject antenna configurations which don't match the
2181 * available antenna masks, except for the "all" mask */
2182 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2183 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2186 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2187 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2189 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2196 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2197 retry_short = nla_get_u8(
2198 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2199 if (retry_short == 0)
2202 changed |= WIPHY_PARAM_RETRY_SHORT;
2205 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2206 retry_long = nla_get_u8(
2207 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2208 if (retry_long == 0)
2211 changed |= WIPHY_PARAM_RETRY_LONG;
2214 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2215 frag_threshold = nla_get_u32(
2216 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2217 if (frag_threshold < 256)
2220 if (frag_threshold != (u32) -1) {
2222 * Fragments (apart from the last one) are required to
2223 * have even length. Make the fragmentation code
2224 * simpler by stripping LSB should someone try to use
2225 * odd threshold value.
2227 frag_threshold &= ~0x1;
2229 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2232 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2233 rts_threshold = nla_get_u32(
2234 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2235 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2238 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2239 coverage_class = nla_get_u8(
2240 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2241 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2245 u8 old_retry_short, old_retry_long;
2246 u32 old_frag_threshold, old_rts_threshold;
2247 u8 old_coverage_class;
2249 if (!rdev->ops->set_wiphy_params)
2252 old_retry_short = rdev->wiphy.retry_short;
2253 old_retry_long = rdev->wiphy.retry_long;
2254 old_frag_threshold = rdev->wiphy.frag_threshold;
2255 old_rts_threshold = rdev->wiphy.rts_threshold;
2256 old_coverage_class = rdev->wiphy.coverage_class;
2258 if (changed & WIPHY_PARAM_RETRY_SHORT)
2259 rdev->wiphy.retry_short = retry_short;
2260 if (changed & WIPHY_PARAM_RETRY_LONG)
2261 rdev->wiphy.retry_long = retry_long;
2262 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2263 rdev->wiphy.frag_threshold = frag_threshold;
2264 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2265 rdev->wiphy.rts_threshold = rts_threshold;
2266 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2267 rdev->wiphy.coverage_class = coverage_class;
2269 result = rdev_set_wiphy_params(rdev, changed);
2271 rdev->wiphy.retry_short = old_retry_short;
2272 rdev->wiphy.retry_long = old_retry_long;
2273 rdev->wiphy.frag_threshold = old_frag_threshold;
2274 rdev->wiphy.rts_threshold = old_rts_threshold;
2275 rdev->wiphy.coverage_class = old_coverage_class;
2281 static inline u64 wdev_id(struct wireless_dev *wdev)
2283 return (u64)wdev->identifier |
2284 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2287 static int nl80211_send_chandef(struct sk_buff *msg,
2288 const struct cfg80211_chan_def *chandef)
2290 WARN_ON(!cfg80211_chandef_valid(chandef));
2292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2293 chandef->chan->center_freq))
2295 switch (chandef->width) {
2296 case NL80211_CHAN_WIDTH_20_NOHT:
2297 case NL80211_CHAN_WIDTH_20:
2298 case NL80211_CHAN_WIDTH_40:
2299 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2300 cfg80211_get_chandef_type(chandef)))
2306 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2308 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2310 if (chandef->center_freq2 &&
2311 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2316 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2317 struct cfg80211_registered_device *rdev,
2318 struct wireless_dev *wdev)
2320 struct net_device *dev = wdev->netdev;
2323 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2328 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2329 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2330 goto nla_put_failure;
2332 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2333 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2334 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2335 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2336 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2337 rdev->devlist_generation ^
2338 (cfg80211_rdev_list_generation << 2)))
2339 goto nla_put_failure;
2341 if (rdev->ops->get_channel) {
2343 struct cfg80211_chan_def chandef;
2345 ret = rdev_get_channel(rdev, wdev, &chandef);
2347 if (nl80211_send_chandef(msg, &chandef))
2348 goto nla_put_failure;
2352 if (wdev->ssid_len) {
2353 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2354 goto nla_put_failure;
2357 return genlmsg_end(msg, hdr);
2360 genlmsg_cancel(msg, hdr);
2364 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2368 int wp_start = cb->args[0];
2369 int if_start = cb->args[1];
2370 struct cfg80211_registered_device *rdev;
2371 struct wireless_dev *wdev;
2374 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2375 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2377 if (wp_idx < wp_start) {
2383 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2384 if (if_idx < if_start) {
2388 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2389 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2401 cb->args[0] = wp_idx;
2402 cb->args[1] = if_idx;
2407 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2409 struct sk_buff *msg;
2410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2411 struct wireless_dev *wdev = info->user_ptr[1];
2413 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2417 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2423 return genlmsg_reply(msg, info);
2426 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2427 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2428 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2429 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2430 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2431 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2432 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2435 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2437 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2445 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2446 nla, mntr_flags_policy))
2449 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2451 *mntrflags |= (1<<flag);
2456 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2457 struct net_device *netdev, u8 use_4addr,
2458 enum nl80211_iftype iftype)
2461 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2467 case NL80211_IFTYPE_AP_VLAN:
2468 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2471 case NL80211_IFTYPE_STATION:
2472 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2482 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2484 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2485 struct vif_params params;
2487 enum nl80211_iftype otype, ntype;
2488 struct net_device *dev = info->user_ptr[1];
2489 u32 _flags, *flags = NULL;
2490 bool change = false;
2492 memset(¶ms, 0, sizeof(params));
2494 otype = ntype = dev->ieee80211_ptr->iftype;
2496 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2497 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2500 if (ntype > NL80211_IFTYPE_MAX)
2504 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2505 struct wireless_dev *wdev = dev->ieee80211_ptr;
2507 if (ntype != NL80211_IFTYPE_MESH_POINT)
2509 if (netif_running(dev))
2513 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2514 IEEE80211_MAX_MESH_ID_LEN);
2515 wdev->mesh_id_up_len =
2516 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2517 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2518 wdev->mesh_id_up_len);
2522 if (info->attrs[NL80211_ATTR_4ADDR]) {
2523 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2525 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2529 params.use_4addr = -1;
2532 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2533 if (ntype != NL80211_IFTYPE_MONITOR)
2535 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2544 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2545 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2549 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2553 if (!err && params.use_4addr != -1)
2554 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2559 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2562 struct vif_params params;
2563 struct wireless_dev *wdev;
2564 struct sk_buff *msg;
2566 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2569 /* to avoid failing a new interface creation due to pending removal */
2570 cfg80211_destroy_ifaces(rdev);
2572 memset(¶ms, 0, sizeof(params));
2574 if (!info->attrs[NL80211_ATTR_IFNAME])
2577 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2578 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2579 if (type > NL80211_IFTYPE_MAX)
2583 if (!rdev->ops->add_virtual_intf ||
2584 !(rdev->wiphy.interface_modes & (1 << type)))
2587 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2588 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2590 if (!is_valid_ether_addr(params.macaddr))
2591 return -EADDRNOTAVAIL;
2594 if (info->attrs[NL80211_ATTR_4ADDR]) {
2595 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2596 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2605 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2606 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2609 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2610 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2613 wdev = rdev_add_virtual_intf(rdev,
2614 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2615 type, err ? NULL : &flags, ¶ms);
2618 return PTR_ERR(wdev);
2621 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2622 wdev->owner_nlportid = info->snd_portid;
2625 case NL80211_IFTYPE_MESH_POINT:
2626 if (!info->attrs[NL80211_ATTR_MESH_ID])
2629 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2630 IEEE80211_MAX_MESH_ID_LEN);
2631 wdev->mesh_id_up_len =
2632 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2633 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2634 wdev->mesh_id_up_len);
2637 case NL80211_IFTYPE_P2P_DEVICE:
2639 * P2P Device doesn't have a netdev, so doesn't go
2640 * through the netdev notifier and must be added here
2642 mutex_init(&wdev->mtx);
2643 INIT_LIST_HEAD(&wdev->event_list);
2644 spin_lock_init(&wdev->event_lock);
2645 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2646 spin_lock_init(&wdev->mgmt_registrations_lock);
2648 wdev->identifier = ++rdev->wdev_id;
2649 list_add_rcu(&wdev->list, &rdev->wdev_list);
2650 rdev->devlist_generation++;
2656 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2662 return genlmsg_reply(msg, info);
2665 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2668 struct wireless_dev *wdev = info->user_ptr[1];
2670 if (!rdev->ops->del_virtual_intf)
2674 * If we remove a wireless device without a netdev then clear
2675 * user_ptr[1] so that nl80211_post_doit won't dereference it
2676 * to check if it needs to do dev_put(). Otherwise it crashes
2677 * since the wdev has been freed, unlike with a netdev where
2678 * we need the dev_put() for the netdev to really be freed.
2681 info->user_ptr[1] = NULL;
2683 return rdev_del_virtual_intf(rdev, wdev);
2686 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2689 struct net_device *dev = info->user_ptr[1];
2692 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2695 if (!rdev->ops->set_noack_map)
2698 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2700 return rdev_set_noack_map(rdev, dev, noack_map);
2703 struct get_key_cookie {
2704 struct sk_buff *msg;
2709 static void get_key_callback(void *c, struct key_params *params)
2712 struct get_key_cookie *cookie = c;
2715 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2716 params->key_len, params->key)) ||
2718 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2719 params->seq_len, params->seq)) ||
2721 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2723 goto nla_put_failure;
2725 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2727 goto nla_put_failure;
2730 nla_put(cookie->msg, NL80211_KEY_DATA,
2731 params->key_len, params->key)) ||
2733 nla_put(cookie->msg, NL80211_KEY_SEQ,
2734 params->seq_len, params->seq)) ||
2736 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2738 goto nla_put_failure;
2740 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2741 goto nla_put_failure;
2743 nla_nest_end(cookie->msg, key);
2750 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2754 struct net_device *dev = info->user_ptr[1];
2756 const u8 *mac_addr = NULL;
2758 struct get_key_cookie cookie = {
2762 struct sk_buff *msg;
2764 if (info->attrs[NL80211_ATTR_KEY_IDX])
2765 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2770 if (info->attrs[NL80211_ATTR_MAC])
2771 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2773 pairwise = !!mac_addr;
2774 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2775 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2776 if (kt >= NUM_NL80211_KEYTYPES)
2778 if (kt != NL80211_KEYTYPE_GROUP &&
2779 kt != NL80211_KEYTYPE_PAIRWISE)
2781 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2784 if (!rdev->ops->get_key)
2787 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2791 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2792 NL80211_CMD_NEW_KEY);
2794 goto nla_put_failure;
2797 cookie.idx = key_idx;
2799 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2800 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2801 goto nla_put_failure;
2803 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2804 goto nla_put_failure;
2806 if (pairwise && mac_addr &&
2807 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2810 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2817 goto nla_put_failure;
2819 genlmsg_end(msg, hdr);
2820 return genlmsg_reply(msg, info);
2829 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2831 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2832 struct key_parse key;
2834 struct net_device *dev = info->user_ptr[1];
2836 err = nl80211_parse_key(info, &key);
2843 /* only support setting default key */
2844 if (!key.def && !key.defmgmt)
2847 wdev_lock(dev->ieee80211_ptr);
2850 if (!rdev->ops->set_default_key) {
2855 err = nl80211_key_allowed(dev->ieee80211_ptr);
2859 err = rdev_set_default_key(rdev, dev, key.idx,
2860 key.def_uni, key.def_multi);
2865 #ifdef CONFIG_CFG80211_WEXT
2866 dev->ieee80211_ptr->wext.default_key = key.idx;
2869 if (key.def_uni || !key.def_multi) {
2874 if (!rdev->ops->set_default_mgmt_key) {
2879 err = nl80211_key_allowed(dev->ieee80211_ptr);
2883 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2887 #ifdef CONFIG_CFG80211_WEXT
2888 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2893 wdev_unlock(dev->ieee80211_ptr);
2898 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2902 struct net_device *dev = info->user_ptr[1];
2903 struct key_parse key;
2904 const u8 *mac_addr = NULL;
2906 err = nl80211_parse_key(info, &key);
2913 if (info->attrs[NL80211_ATTR_MAC])
2914 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2916 if (key.type == -1) {
2918 key.type = NL80211_KEYTYPE_PAIRWISE;
2920 key.type = NL80211_KEYTYPE_GROUP;
2924 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2925 key.type != NL80211_KEYTYPE_GROUP)
2928 if (!rdev->ops->add_key)
2931 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2932 key.type == NL80211_KEYTYPE_PAIRWISE,
2936 wdev_lock(dev->ieee80211_ptr);
2937 err = nl80211_key_allowed(dev->ieee80211_ptr);
2939 err = rdev_add_key(rdev, dev, key.idx,
2940 key.type == NL80211_KEYTYPE_PAIRWISE,
2942 wdev_unlock(dev->ieee80211_ptr);
2947 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2949 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2951 struct net_device *dev = info->user_ptr[1];
2952 u8 *mac_addr = NULL;
2953 struct key_parse key;
2955 err = nl80211_parse_key(info, &key);
2959 if (info->attrs[NL80211_ATTR_MAC])
2960 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2962 if (key.type == -1) {
2964 key.type = NL80211_KEYTYPE_PAIRWISE;
2966 key.type = NL80211_KEYTYPE_GROUP;
2970 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2971 key.type != NL80211_KEYTYPE_GROUP)
2974 if (!rdev->ops->del_key)
2977 wdev_lock(dev->ieee80211_ptr);
2978 err = nl80211_key_allowed(dev->ieee80211_ptr);
2980 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2981 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2985 err = rdev_del_key(rdev, dev, key.idx,
2986 key.type == NL80211_KEYTYPE_PAIRWISE,
2989 #ifdef CONFIG_CFG80211_WEXT
2991 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2992 dev->ieee80211_ptr->wext.default_key = -1;
2993 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2994 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2997 wdev_unlock(dev->ieee80211_ptr);
3002 /* This function returns an error or the number of nested attributes */
3003 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3005 struct nlattr *attr;
3006 int n_entries = 0, tmp;
3008 nla_for_each_nested(attr, nl_attr, tmp) {
3009 if (nla_len(attr) != ETH_ALEN)
3019 * This function parses ACL information and allocates memory for ACL data.
3020 * On successful return, the calling function is responsible to free the
3021 * ACL buffer returned by this function.
3023 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3024 struct genl_info *info)
3026 enum nl80211_acl_policy acl_policy;
3027 struct nlattr *attr;
3028 struct cfg80211_acl_data *acl;
3029 int i = 0, n_entries, tmp;
3031 if (!wiphy->max_acl_mac_addrs)
3032 return ERR_PTR(-EOPNOTSUPP);
3034 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3035 return ERR_PTR(-EINVAL);
3037 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3038 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3039 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3040 return ERR_PTR(-EINVAL);
3042 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3043 return ERR_PTR(-EINVAL);
3045 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3047 return ERR_PTR(n_entries);
3049 if (n_entries > wiphy->max_acl_mac_addrs)
3050 return ERR_PTR(-ENOTSUPP);
3052 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3055 return ERR_PTR(-ENOMEM);
3057 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3058 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3062 acl->n_acl_entries = n_entries;
3063 acl->acl_policy = acl_policy;
3068 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3070 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3071 struct net_device *dev = info->user_ptr[1];
3072 struct cfg80211_acl_data *acl;
3075 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3076 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3079 if (!dev->ieee80211_ptr->beacon_interval)
3082 acl = parse_acl_data(&rdev->wiphy, info);
3084 return PTR_ERR(acl);
3086 err = rdev_set_mac_acl(rdev, dev, acl);
3093 static int nl80211_parse_beacon(struct nlattr *attrs[],
3094 struct cfg80211_beacon_data *bcn)
3096 bool haveinfo = false;
3098 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3099 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3100 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3101 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3104 memset(bcn, 0, sizeof(*bcn));
3106 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3107 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3108 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3114 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3115 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3116 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3123 if (attrs[NL80211_ATTR_IE]) {
3124 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3125 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3128 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3129 bcn->proberesp_ies =
3130 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3131 bcn->proberesp_ies_len =
3132 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3135 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3136 bcn->assocresp_ies =
3137 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3138 bcn->assocresp_ies_len =
3139 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3142 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3143 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3144 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3150 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3151 struct cfg80211_ap_settings *params)
3153 struct wireless_dev *wdev;
3156 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3157 if (wdev->iftype != NL80211_IFTYPE_AP &&
3158 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3161 if (!wdev->preset_chandef.chan)
3164 params->chandef = wdev->preset_chandef;
3172 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3173 enum nl80211_auth_type auth_type,
3174 enum nl80211_commands cmd)
3176 if (auth_type > NL80211_AUTHTYPE_MAX)
3180 case NL80211_CMD_AUTHENTICATE:
3181 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3182 auth_type == NL80211_AUTHTYPE_SAE)
3185 case NL80211_CMD_CONNECT:
3186 case NL80211_CMD_START_AP:
3187 /* SAE not supported yet */
3188 if (auth_type == NL80211_AUTHTYPE_SAE)
3196 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3199 struct net_device *dev = info->user_ptr[1];
3200 struct wireless_dev *wdev = dev->ieee80211_ptr;
3201 struct cfg80211_ap_settings params;
3204 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3205 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3208 if (!rdev->ops->start_ap)
3211 if (wdev->beacon_interval)
3214 memset(¶ms, 0, sizeof(params));
3216 /* these are required for START_AP */
3217 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3218 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3219 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3222 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3226 params.beacon_interval =
3227 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3228 params.dtim_period =
3229 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3231 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3236 * In theory, some of these attributes should be required here
3237 * but since they were not used when the command was originally
3238 * added, keep them optional for old user space programs to let
3239 * them continue to work with drivers that do not need the
3240 * additional information -- drivers must check!
3242 if (info->attrs[NL80211_ATTR_SSID]) {
3243 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3245 nla_len(info->attrs[NL80211_ATTR_SSID]);
3246 if (params.ssid_len == 0 ||
3247 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3251 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3252 params.hidden_ssid = nla_get_u32(
3253 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3254 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3255 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3256 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3260 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3262 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3263 params.auth_type = nla_get_u32(
3264 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3265 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3266 NL80211_CMD_START_AP))
3269 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3271 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3272 NL80211_MAX_NR_CIPHER_SUITES);
3276 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3277 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3279 params.inactivity_timeout = nla_get_u16(
3280 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3283 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3284 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3286 params.p2p_ctwindow =
3287 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3288 if (params.p2p_ctwindow > 127)
3290 if (params.p2p_ctwindow != 0 &&
3291 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3295 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3298 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3300 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3303 params.p2p_opp_ps = tmp;
3304 if (params.p2p_opp_ps != 0 &&
3305 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3309 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3310 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3313 } else if (wdev->preset_chandef.chan) {
3314 params.chandef = wdev->preset_chandef;
3315 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3318 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
3322 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3323 params.acl = parse_acl_data(&rdev->wiphy, info);
3324 if (IS_ERR(params.acl))
3325 return PTR_ERR(params.acl);
3329 err = rdev_start_ap(rdev, dev, ¶ms);
3331 wdev->preset_chandef = params.chandef;
3332 wdev->beacon_interval = params.beacon_interval;
3333 wdev->chandef = params.chandef;
3334 wdev->ssid_len = params.ssid_len;
3335 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3344 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3347 struct net_device *dev = info->user_ptr[1];
3348 struct wireless_dev *wdev = dev->ieee80211_ptr;
3349 struct cfg80211_beacon_data params;
3352 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3353 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3356 if (!rdev->ops->change_beacon)
3359 if (!wdev->beacon_interval)
3362 err = nl80211_parse_beacon(info->attrs, ¶ms);
3367 err = rdev_change_beacon(rdev, dev, ¶ms);
3373 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3375 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3376 struct net_device *dev = info->user_ptr[1];
3378 return cfg80211_stop_ap(rdev, dev, false);
3381 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3382 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3383 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3384 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3385 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3386 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3387 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3390 static int parse_station_flags(struct genl_info *info,
3391 enum nl80211_iftype iftype,
3392 struct station_parameters *params)
3394 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3399 * Try parsing the new attribute first so userspace
3400 * can specify both for older kernels.
3402 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3404 struct nl80211_sta_flag_update *sta_flags;
3406 sta_flags = nla_data(nla);
3407 params->sta_flags_mask = sta_flags->mask;
3408 params->sta_flags_set = sta_flags->set;
3409 params->sta_flags_set &= params->sta_flags_mask;
3410 if ((params->sta_flags_mask |
3411 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3416 /* if present, parse the old attribute */
3418 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3422 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3423 nla, sta_flags_policy))
3427 * Only allow certain flags for interface types so that
3428 * other attributes are silently ignored. Remember that
3429 * this is backward compatibility code with old userspace
3430 * and shouldn't be hit in other cases anyway.
3433 case NL80211_IFTYPE_AP:
3434 case NL80211_IFTYPE_AP_VLAN:
3435 case NL80211_IFTYPE_P2P_GO:
3436 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3437 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3438 BIT(NL80211_STA_FLAG_WME) |
3439 BIT(NL80211_STA_FLAG_MFP);
3441 case NL80211_IFTYPE_P2P_CLIENT:
3442 case NL80211_IFTYPE_STATION:
3443 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3444 BIT(NL80211_STA_FLAG_TDLS_PEER);
3446 case NL80211_IFTYPE_MESH_POINT:
3447 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3448 BIT(NL80211_STA_FLAG_MFP) |
3449 BIT(NL80211_STA_FLAG_AUTHORIZED);
3454 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3456 params->sta_flags_set |= (1<<flag);
3458 /* no longer support new API additions in old API */
3459 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3467 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3470 struct nlattr *rate;
3474 rate = nla_nest_start(msg, attr);
3478 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3479 bitrate = cfg80211_calculate_bitrate(info);
3480 /* report 16-bit bitrate only if we can */
3481 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3483 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3485 if (bitrate_compat > 0 &&
3486 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3489 if (info->flags & RATE_INFO_FLAGS_MCS) {
3490 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3492 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3493 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3495 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3496 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3498 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3499 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3501 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3503 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3504 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3506 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3507 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3509 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3510 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3512 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3513 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3515 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3516 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3520 nla_nest_end(msg, rate);
3524 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3533 attr = nla_nest_start(msg, id);
3537 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3538 if (!(mask & BIT(i)))
3541 if (nla_put_u8(msg, i, signal[i]))
3545 nla_nest_end(msg, attr);
3550 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3552 struct cfg80211_registered_device *rdev,
3553 struct net_device *dev,
3554 const u8 *mac_addr, struct station_info *sinfo)
3557 struct nlattr *sinfoattr, *bss_param;
3559 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3563 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3564 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3565 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3566 goto nla_put_failure;
3568 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3570 goto nla_put_failure;
3571 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3572 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3573 sinfo->connected_time))
3574 goto nla_put_failure;
3575 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3576 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3577 sinfo->inactive_time))
3578 goto nla_put_failure;
3579 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3580 STATION_INFO_RX_BYTES64)) &&
3581 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3582 (u32)sinfo->rx_bytes))
3583 goto nla_put_failure;
3584 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3585 STATION_INFO_TX_BYTES64)) &&
3586 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3587 (u32)sinfo->tx_bytes))
3588 goto nla_put_failure;
3589 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3590 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3592 goto nla_put_failure;
3593 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3594 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3596 goto nla_put_failure;
3597 if ((sinfo->filled & STATION_INFO_LLID) &&
3598 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3599 goto nla_put_failure;
3600 if ((sinfo->filled & STATION_INFO_PLID) &&
3601 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3602 goto nla_put_failure;
3603 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3604 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3605 sinfo->plink_state))
3606 goto nla_put_failure;
3607 switch (rdev->wiphy.signal_type) {
3608 case CFG80211_SIGNAL_TYPE_MBM:
3609 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3610 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3612 goto nla_put_failure;
3613 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3614 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3616 goto nla_put_failure;
3621 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3622 if (!nl80211_put_signal(msg, sinfo->chains,
3623 sinfo->chain_signal,
3624 NL80211_STA_INFO_CHAIN_SIGNAL))
3625 goto nla_put_failure;
3627 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3628 if (!nl80211_put_signal(msg, sinfo->chains,
3629 sinfo->chain_signal_avg,
3630 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3631 goto nla_put_failure;
3633 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3634 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3635 NL80211_STA_INFO_TX_BITRATE))
3636 goto nla_put_failure;
3638 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3639 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3640 NL80211_STA_INFO_RX_BITRATE))
3641 goto nla_put_failure;
3643 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3644 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3646 goto nla_put_failure;
3647 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3648 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3650 goto nla_put_failure;
3651 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3652 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3654 goto nla_put_failure;
3655 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3656 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3658 goto nla_put_failure;
3659 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3660 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3661 sinfo->expected_throughput))
3662 goto nla_put_failure;
3663 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3664 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3665 sinfo->beacon_loss_count))
3666 goto nla_put_failure;
3667 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3668 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3670 goto nla_put_failure;
3671 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3672 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3674 goto nla_put_failure;
3675 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3676 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3678 goto nla_put_failure;
3679 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3680 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3682 goto nla_put_failure;
3684 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3685 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3686 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3687 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3688 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3689 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3690 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3691 sinfo->bss_param.dtim_period) ||
3692 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3693 sinfo->bss_param.beacon_interval))
3694 goto nla_put_failure;
3696 nla_nest_end(msg, bss_param);
3698 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3699 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3700 sizeof(struct nl80211_sta_flag_update),
3702 goto nla_put_failure;
3703 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3704 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3706 goto nla_put_failure;
3707 nla_nest_end(msg, sinfoattr);
3709 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3710 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3711 sinfo->assoc_req_ies))
3712 goto nla_put_failure;
3714 return genlmsg_end(msg, hdr);
3717 genlmsg_cancel(msg, hdr);
3721 static int nl80211_dump_station(struct sk_buff *skb,
3722 struct netlink_callback *cb)
3724 struct station_info sinfo;
3725 struct cfg80211_registered_device *rdev;
3726 struct wireless_dev *wdev;
3727 u8 mac_addr[ETH_ALEN];
3728 int sta_idx = cb->args[2];
3731 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3735 if (!wdev->netdev) {
3740 if (!rdev->ops->dump_station) {
3746 memset(&sinfo, 0, sizeof(sinfo));
3747 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3754 if (nl80211_send_station(skb,
3755 NETLINK_CB(cb->skb).portid,
3756 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3757 rdev, wdev->netdev, mac_addr,
3766 cb->args[2] = sta_idx;
3769 nl80211_finish_wdev_dump(rdev);
3774 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3776 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3777 struct net_device *dev = info->user_ptr[1];
3778 struct station_info sinfo;
3779 struct sk_buff *msg;
3780 u8 *mac_addr = NULL;
3783 memset(&sinfo, 0, sizeof(sinfo));
3785 if (!info->attrs[NL80211_ATTR_MAC])
3788 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3790 if (!rdev->ops->get_station)
3793 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3797 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3801 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3802 rdev, dev, mac_addr, &sinfo) < 0) {
3807 return genlmsg_reply(msg, info);
3810 int cfg80211_check_station_change(struct wiphy *wiphy,
3811 struct station_parameters *params,
3812 enum cfg80211_station_type statype)
3814 if (params->listen_interval != -1)
3819 /* When you run into this, adjust the code below for the new flag */
3820 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3823 case CFG80211_STA_MESH_PEER_KERNEL:
3824 case CFG80211_STA_MESH_PEER_USER:
3826 * No ignoring the TDLS flag here -- the userspace mesh
3827 * code doesn't have the bug of including TDLS in the
3830 if (params->sta_flags_mask &
3831 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3832 BIT(NL80211_STA_FLAG_MFP) |
3833 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3836 case CFG80211_STA_TDLS_PEER_SETUP:
3837 case CFG80211_STA_TDLS_PEER_ACTIVE:
3838 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3840 /* ignore since it can't change */
3841 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3844 /* disallow mesh-specific things */
3845 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3847 if (params->local_pm)
3849 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3853 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3854 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3855 /* TDLS can't be set, ... */
3856 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3859 * ... but don't bother the driver with it. This works around
3860 * a hostapd/wpa_supplicant issue -- it always includes the
3861 * TLDS_PEER flag in the mask even for AP mode.
3863 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3866 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3867 /* reject other things that can't change */
3868 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3870 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3872 if (params->supported_rates)
3874 if (params->ext_capab || params->ht_capa || params->vht_capa)
3878 if (statype != CFG80211_STA_AP_CLIENT) {
3884 case CFG80211_STA_AP_MLME_CLIENT:
3885 /* Use this only for authorizing/unauthorizing a station */
3886 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3889 case CFG80211_STA_AP_CLIENT:
3890 /* accept only the listed bits */
3891 if (params->sta_flags_mask &
3892 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3893 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3894 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3895 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3896 BIT(NL80211_STA_FLAG_WME) |
3897 BIT(NL80211_STA_FLAG_MFP)))
3900 /* but authenticated/associated only if driver handles it */
3901 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3902 params->sta_flags_mask &
3903 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3904 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3907 case CFG80211_STA_IBSS:
3908 case CFG80211_STA_AP_STA:
3909 /* reject any changes other than AUTHORIZED */
3910 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3913 case CFG80211_STA_TDLS_PEER_SETUP:
3914 /* reject any changes other than AUTHORIZED or WME */
3915 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3916 BIT(NL80211_STA_FLAG_WME)))
3918 /* force (at least) rates when authorizing */
3919 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3920 !params->supported_rates)
3923 case CFG80211_STA_TDLS_PEER_ACTIVE:
3924 /* reject any changes */
3926 case CFG80211_STA_MESH_PEER_KERNEL:
3927 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3930 case CFG80211_STA_MESH_PEER_USER:
3931 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3938 EXPORT_SYMBOL(cfg80211_check_station_change);
3941 * Get vlan interface making sure it is running and on the right wiphy.
3943 static struct net_device *get_vlan(struct genl_info *info,
3944 struct cfg80211_registered_device *rdev)
3946 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3947 struct net_device *v;
3953 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3955 return ERR_PTR(-ENODEV);
3957 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3962 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3963 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3964 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3969 if (!netif_running(v)) {
3977 return ERR_PTR(ret);
3980 static const struct nla_policy
3981 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
3982 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3983 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3986 static int nl80211_parse_sta_wme(struct genl_info *info,
3987 struct station_parameters *params)
3989 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3993 /* parse WME attributes if present */
3994 if (!info->attrs[NL80211_ATTR_STA_WME])
3997 nla = info->attrs[NL80211_ATTR_STA_WME];
3998 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3999 nl80211_sta_wme_policy);
4003 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4004 params->uapsd_queues = nla_get_u8(
4005 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4006 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4009 if (tb[NL80211_STA_WME_MAX_SP])
4010 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4012 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4015 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4020 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4021 struct station_parameters *params)
4023 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4024 params->supported_channels =
4025 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4026 params->supported_channels_len =
4027 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4029 * Need to include at least one (first channel, number of
4030 * channels) tuple for each subband, and must have proper
4031 * tuples for the rest of the data as well.
4033 if (params->supported_channels_len < 2)
4035 if (params->supported_channels_len % 2)
4039 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4040 params->supported_oper_classes =
4041 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4042 params->supported_oper_classes_len =
4043 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4045 * The value of the Length field of the Supported Operating
4046 * Classes element is between 2 and 253.
4048 if (params->supported_oper_classes_len < 2 ||
4049 params->supported_oper_classes_len > 253)
4055 static int nl80211_set_station_tdls(struct genl_info *info,
4056 struct station_parameters *params)
4059 /* Dummy STA entry gets updated once the peer capabilities are known */
4060 if (info->attrs[NL80211_ATTR_PEER_AID])
4061 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4062 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4064 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4065 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4067 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4069 err = nl80211_parse_sta_channel_info(info, params);
4073 return nl80211_parse_sta_wme(info, params);
4076 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4078 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4079 struct net_device *dev = info->user_ptr[1];
4080 struct station_parameters params;
4084 memset(¶ms, 0, sizeof(params));
4086 params.listen_interval = -1;
4088 if (!rdev->ops->change_station)
4091 if (info->attrs[NL80211_ATTR_STA_AID])
4094 if (!info->attrs[NL80211_ATTR_MAC])
4097 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4099 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4100 params.supported_rates =
4101 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4102 params.supported_rates_len =
4103 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4106 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4108 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4109 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4112 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4114 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4115 params.ext_capab_len =
4116 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4119 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4122 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4125 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4126 params.plink_action =
4127 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4128 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4132 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4133 params.plink_state =
4134 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4135 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4137 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4140 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4141 enum nl80211_mesh_power_mode pm = nla_get_u32(
4142 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4144 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4145 pm > NL80211_MESH_POWER_MAX)
4148 params.local_pm = pm;
4151 /* Include parameters for TDLS peer (will check later) */
4152 err = nl80211_set_station_tdls(info, ¶ms);
4156 params.vlan = get_vlan(info, rdev);
4157 if (IS_ERR(params.vlan))
4158 return PTR_ERR(params.vlan);
4160 switch (dev->ieee80211_ptr->iftype) {
4161 case NL80211_IFTYPE_AP:
4162 case NL80211_IFTYPE_AP_VLAN:
4163 case NL80211_IFTYPE_P2P_GO:
4164 case NL80211_IFTYPE_P2P_CLIENT:
4165 case NL80211_IFTYPE_STATION:
4166 case NL80211_IFTYPE_ADHOC:
4167 case NL80211_IFTYPE_MESH_POINT:
4174 /* driver will call cfg80211_check_station_change() */
4175 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4179 dev_put(params.vlan);
4184 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4188 struct net_device *dev = info->user_ptr[1];
4189 struct station_parameters params;
4190 u8 *mac_addr = NULL;
4192 memset(¶ms, 0, sizeof(params));
4194 if (!rdev->ops->add_station)
4197 if (!info->attrs[NL80211_ATTR_MAC])
4200 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4203 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4206 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4207 !info->attrs[NL80211_ATTR_PEER_AID])
4210 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4211 params.supported_rates =
4212 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4213 params.supported_rates_len =
4214 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4215 params.listen_interval =
4216 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4218 if (info->attrs[NL80211_ATTR_PEER_AID])
4219 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4221 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4222 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4225 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4227 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4228 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4231 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4233 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4234 params.ext_capab_len =
4235 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4238 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4240 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4242 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4244 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4246 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4247 params.opmode_notif_used = true;
4248 params.opmode_notif =
4249 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4252 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4253 params.plink_action =
4254 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4255 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4259 err = nl80211_parse_sta_channel_info(info, ¶ms);
4263 err = nl80211_parse_sta_wme(info, ¶ms);
4267 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4270 /* When you run into this, adjust the code below for the new flag */
4271 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4273 switch (dev->ieee80211_ptr->iftype) {
4274 case NL80211_IFTYPE_AP:
4275 case NL80211_IFTYPE_AP_VLAN:
4276 case NL80211_IFTYPE_P2P_GO:
4277 /* ignore WME attributes if iface/sta is not capable */
4278 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4279 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4280 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4282 /* TDLS peers cannot be added */
4283 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4284 info->attrs[NL80211_ATTR_PEER_AID])
4286 /* but don't bother the driver with it */
4287 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4289 /* allow authenticated/associated only if driver handles it */
4290 if (!(rdev->wiphy.features &
4291 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4292 params.sta_flags_mask &
4293 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4294 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4297 /* must be last in here for error handling */
4298 params.vlan = get_vlan(info, rdev);
4299 if (IS_ERR(params.vlan))
4300 return PTR_ERR(params.vlan);
4302 case NL80211_IFTYPE_MESH_POINT:
4303 /* ignore uAPSD data */
4304 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4306 /* associated is disallowed */
4307 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4309 /* TDLS peers cannot be added */
4310 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4311 info->attrs[NL80211_ATTR_PEER_AID])
4314 case NL80211_IFTYPE_STATION:
4315 case NL80211_IFTYPE_P2P_CLIENT:
4316 /* ignore uAPSD data */
4317 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4319 /* these are disallowed */
4320 if (params.sta_flags_mask &
4321 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4322 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4324 /* Only TDLS peers can be added */
4325 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4327 /* Can only add if TDLS ... */
4328 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4330 /* ... with external setup is supported */
4331 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4334 * Older wpa_supplicant versions always mark the TDLS peer
4335 * as authorized, but it shouldn't yet be.
4337 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4343 /* be aware of params.vlan when changing code here */
4345 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4348 dev_put(params.vlan);
4352 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4354 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4355 struct net_device *dev = info->user_ptr[1];
4356 u8 *mac_addr = NULL;
4358 if (info->attrs[NL80211_ATTR_MAC])
4359 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4363 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4367 if (!rdev->ops->del_station)
4370 return rdev_del_station(rdev, dev, mac_addr);
4373 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4374 int flags, struct net_device *dev,
4375 u8 *dst, u8 *next_hop,
4376 struct mpath_info *pinfo)
4379 struct nlattr *pinfoattr;
4381 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4385 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4386 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4387 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4388 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4389 goto nla_put_failure;
4391 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4393 goto nla_put_failure;
4394 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4395 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4397 goto nla_put_failure;
4398 if (((pinfo->filled & MPATH_INFO_SN) &&
4399 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4400 ((pinfo->filled & MPATH_INFO_METRIC) &&
4401 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4403 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4404 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4406 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4407 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4409 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4410 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4411 pinfo->discovery_timeout)) ||
4412 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4413 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4414 pinfo->discovery_retries)))
4415 goto nla_put_failure;
4417 nla_nest_end(msg, pinfoattr);
4419 return genlmsg_end(msg, hdr);
4422 genlmsg_cancel(msg, hdr);
4426 static int nl80211_dump_mpath(struct sk_buff *skb,
4427 struct netlink_callback *cb)
4429 struct mpath_info pinfo;
4430 struct cfg80211_registered_device *rdev;
4431 struct wireless_dev *wdev;
4433 u8 next_hop[ETH_ALEN];
4434 int path_idx = cb->args[2];
4437 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4441 if (!rdev->ops->dump_mpath) {
4446 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4452 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4459 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4460 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4461 wdev->netdev, dst, next_hop,
4470 cb->args[2] = path_idx;
4473 nl80211_finish_wdev_dump(rdev);
4477 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4481 struct net_device *dev = info->user_ptr[1];
4482 struct mpath_info pinfo;
4483 struct sk_buff *msg;
4485 u8 next_hop[ETH_ALEN];
4487 memset(&pinfo, 0, sizeof(pinfo));
4489 if (!info->attrs[NL80211_ATTR_MAC])
4492 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4494 if (!rdev->ops->get_mpath)
4497 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4500 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4504 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4508 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4509 dev, dst, next_hop, &pinfo) < 0) {
4514 return genlmsg_reply(msg, info);
4517 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4520 struct net_device *dev = info->user_ptr[1];
4522 u8 *next_hop = NULL;
4524 if (!info->attrs[NL80211_ATTR_MAC])
4527 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4530 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4531 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4533 if (!rdev->ops->change_mpath)
4536 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4539 return rdev_change_mpath(rdev, dev, dst, next_hop);
4542 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4544 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4545 struct net_device *dev = info->user_ptr[1];
4547 u8 *next_hop = NULL;
4549 if (!info->attrs[NL80211_ATTR_MAC])
4552 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4555 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4556 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4558 if (!rdev->ops->add_mpath)
4561 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4564 return rdev_add_mpath(rdev, dev, dst, next_hop);
4567 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4570 struct net_device *dev = info->user_ptr[1];
4573 if (info->attrs[NL80211_ATTR_MAC])
4574 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4576 if (!rdev->ops->del_mpath)
4579 return rdev_del_mpath(rdev, dev, dst);
4582 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4584 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4585 struct net_device *dev = info->user_ptr[1];
4586 struct wireless_dev *wdev = dev->ieee80211_ptr;
4587 struct bss_parameters params;
4590 memset(¶ms, 0, sizeof(params));
4591 /* default to not changing parameters */
4592 params.use_cts_prot = -1;
4593 params.use_short_preamble = -1;
4594 params.use_short_slot_time = -1;
4595 params.ap_isolate = -1;
4596 params.ht_opmode = -1;
4597 params.p2p_ctwindow = -1;
4598 params.p2p_opp_ps = -1;
4600 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4601 params.use_cts_prot =
4602 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4603 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4604 params.use_short_preamble =
4605 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4606 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4607 params.use_short_slot_time =
4608 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4609 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4610 params.basic_rates =
4611 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4612 params.basic_rates_len =
4613 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4615 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4616 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4617 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4619 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4621 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4622 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4624 params.p2p_ctwindow =
4625 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4626 if (params.p2p_ctwindow < 0)
4628 if (params.p2p_ctwindow != 0 &&
4629 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4633 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4636 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4638 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4641 params.p2p_opp_ps = tmp;
4642 if (params.p2p_opp_ps &&
4643 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4647 if (!rdev->ops->change_bss)
4650 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4651 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4655 err = rdev_change_bss(rdev, dev, ¶ms);
4661 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4662 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4663 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4664 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4665 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4666 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4667 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4668 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4671 static int parse_reg_rule(struct nlattr *tb[],
4672 struct ieee80211_reg_rule *reg_rule)
4674 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4675 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4677 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4679 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4681 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4683 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4685 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4688 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4690 freq_range->start_freq_khz =
4691 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4692 freq_range->end_freq_khz =
4693 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4694 freq_range->max_bandwidth_khz =
4695 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4697 power_rule->max_eirp =
4698 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4700 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4701 power_rule->max_antenna_gain =
4702 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4704 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4705 reg_rule->dfs_cac_ms =
4706 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4711 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4714 enum nl80211_user_reg_hint_type user_reg_hint_type;
4717 * You should only get this when cfg80211 hasn't yet initialized
4718 * completely when built-in to the kernel right between the time
4719 * window between nl80211_init() and regulatory_init(), if that is
4722 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4723 return -EINPROGRESS;
4725 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4726 user_reg_hint_type =
4727 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4729 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4731 switch (user_reg_hint_type) {
4732 case NL80211_USER_REG_HINT_USER:
4733 case NL80211_USER_REG_HINT_CELL_BASE:
4734 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4737 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4738 return regulatory_hint_user(data, user_reg_hint_type);
4739 case NL80211_USER_REG_HINT_INDOOR:
4740 return regulatory_hint_indoor_user();
4746 static int nl80211_get_mesh_config(struct sk_buff *skb,
4747 struct genl_info *info)
4749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4750 struct net_device *dev = info->user_ptr[1];
4751 struct wireless_dev *wdev = dev->ieee80211_ptr;
4752 struct mesh_config cur_params;
4755 struct nlattr *pinfoattr;
4756 struct sk_buff *msg;
4758 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4761 if (!rdev->ops->get_mesh_config)
4765 /* If not connected, get default parameters */
4766 if (!wdev->mesh_id_len)
4767 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4769 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4775 /* Draw up a netlink message to send back */
4776 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4779 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4780 NL80211_CMD_GET_MESH_CONFIG);
4783 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4785 goto nla_put_failure;
4786 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4787 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4788 cur_params.dot11MeshRetryTimeout) ||
4789 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4790 cur_params.dot11MeshConfirmTimeout) ||
4791 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4792 cur_params.dot11MeshHoldingTimeout) ||
4793 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4794 cur_params.dot11MeshMaxPeerLinks) ||
4795 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4796 cur_params.dot11MeshMaxRetries) ||
4797 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4798 cur_params.dot11MeshTTL) ||
4799 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4800 cur_params.element_ttl) ||
4801 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4802 cur_params.auto_open_plinks) ||
4803 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4804 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4805 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4806 cur_params.dot11MeshHWMPmaxPREQretries) ||
4807 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4808 cur_params.path_refresh_time) ||
4809 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4810 cur_params.min_discovery_timeout) ||
4811 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4812 cur_params.dot11MeshHWMPactivePathTimeout) ||
4813 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4814 cur_params.dot11MeshHWMPpreqMinInterval) ||
4815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4816 cur_params.dot11MeshHWMPperrMinInterval) ||
4817 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4818 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4819 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4820 cur_params.dot11MeshHWMPRootMode) ||
4821 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4822 cur_params.dot11MeshHWMPRannInterval) ||
4823 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4824 cur_params.dot11MeshGateAnnouncementProtocol) ||
4825 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4826 cur_params.dot11MeshForwarding) ||
4827 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4828 cur_params.rssi_threshold) ||
4829 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4830 cur_params.ht_opmode) ||
4831 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4832 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4833 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4834 cur_params.dot11MeshHWMProotInterval) ||
4835 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4836 cur_params.dot11MeshHWMPconfirmationInterval) ||
4837 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4838 cur_params.power_mode) ||
4839 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4840 cur_params.dot11MeshAwakeWindowDuration) ||
4841 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4842 cur_params.plink_timeout))
4843 goto nla_put_failure;
4844 nla_nest_end(msg, pinfoattr);
4845 genlmsg_end(msg, hdr);
4846 return genlmsg_reply(msg, info);
4849 genlmsg_cancel(msg, hdr);
4855 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4856 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4857 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4858 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4859 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4860 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4861 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4862 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4863 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4864 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4865 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4866 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4867 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4868 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4869 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4870 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4871 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4872 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4873 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4874 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4875 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4876 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4877 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4878 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4879 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4880 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4881 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4882 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4883 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4886 static const struct nla_policy
4887 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4888 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4889 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4890 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4891 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4892 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4893 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4894 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4895 .len = IEEE80211_MAX_DATA_LEN },
4896 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4899 static int nl80211_parse_mesh_config(struct genl_info *info,
4900 struct mesh_config *cfg,
4903 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4906 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4909 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4911 cfg->param = fn(tb[attr]); \
4912 mask |= (1 << (attr - 1)); \
4917 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4919 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4920 info->attrs[NL80211_ATTR_MESH_CONFIG],
4921 nl80211_meshconf_params_policy))
4924 /* This makes sure that there aren't more than 32 mesh config
4925 * parameters (otherwise our bitfield scheme would not work.) */
4926 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4928 /* Fill in the params struct */
4929 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4930 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4932 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4933 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4935 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4936 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4938 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4939 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4942 mask, NL80211_MESHCONF_MAX_RETRIES,
4944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4945 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4947 mask, NL80211_MESHCONF_ELEMENT_TTL,
4949 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4950 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4952 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4954 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4956 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4957 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4959 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4960 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4962 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4963 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4965 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4967 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4969 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4971 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4973 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4975 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4978 dot11MeshHWMPnetDiameterTraversalTime,
4980 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4982 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4983 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4985 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4986 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4988 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4989 dot11MeshGateAnnouncementProtocol, 0, 1,
4990 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4992 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4993 mask, NL80211_MESHCONF_FORWARDING,
4995 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
4996 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4998 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4999 mask, NL80211_MESHCONF_HT_OPMODE,
5001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5003 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5005 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5006 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5008 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5009 dot11MeshHWMPconfirmationInterval,
5011 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5013 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5014 NL80211_MESH_POWER_ACTIVE,
5015 NL80211_MESH_POWER_MAX,
5016 mask, NL80211_MESHCONF_POWER_MODE,
5018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5020 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5021 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5022 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5029 #undef FILL_IN_MESH_PARAM_IF_SET
5032 static int nl80211_parse_mesh_setup(struct genl_info *info,
5033 struct mesh_setup *setup)
5035 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5036 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5038 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5040 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5041 info->attrs[NL80211_ATTR_MESH_SETUP],
5042 nl80211_mesh_setup_params_policy))
5045 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5046 setup->sync_method =
5047 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5048 IEEE80211_SYNC_METHOD_VENDOR :
5049 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5051 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5052 setup->path_sel_proto =
5053 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5054 IEEE80211_PATH_PROTOCOL_VENDOR :
5055 IEEE80211_PATH_PROTOCOL_HWMP;
5057 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5058 setup->path_metric =
5059 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5060 IEEE80211_PATH_METRIC_VENDOR :
5061 IEEE80211_PATH_METRIC_AIRTIME;
5064 if (tb[NL80211_MESH_SETUP_IE]) {
5065 struct nlattr *ieattr =
5066 tb[NL80211_MESH_SETUP_IE];
5067 if (!is_valid_ie_attr(ieattr))
5069 setup->ie = nla_data(ieattr);
5070 setup->ie_len = nla_len(ieattr);
5072 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5073 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5075 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5076 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5077 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5078 if (setup->is_secure)
5079 setup->user_mpm = true;
5081 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5082 if (!setup->user_mpm)
5085 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5091 static int nl80211_update_mesh_config(struct sk_buff *skb,
5092 struct genl_info *info)
5094 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5095 struct net_device *dev = info->user_ptr[1];
5096 struct wireless_dev *wdev = dev->ieee80211_ptr;
5097 struct mesh_config cfg;
5101 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5104 if (!rdev->ops->update_mesh_config)
5107 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5112 if (!wdev->mesh_id_len)
5116 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5123 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5125 const struct ieee80211_regdomain *regdom;
5126 struct sk_buff *msg;
5128 struct nlattr *nl_reg_rules;
5131 if (!cfg80211_regdomain)
5134 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5138 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5139 NL80211_CMD_GET_REG);
5143 if (reg_last_request_cell_base() &&
5144 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5145 NL80211_USER_REG_HINT_CELL_BASE))
5146 goto nla_put_failure;
5149 regdom = rcu_dereference(cfg80211_regdomain);
5151 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5152 (regdom->dfs_region &&
5153 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5154 goto nla_put_failure_rcu;
5156 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5158 goto nla_put_failure_rcu;
5160 for (i = 0; i < regdom->n_reg_rules; i++) {
5161 struct nlattr *nl_reg_rule;
5162 const struct ieee80211_reg_rule *reg_rule;
5163 const struct ieee80211_freq_range *freq_range;
5164 const struct ieee80211_power_rule *power_rule;
5165 unsigned int max_bandwidth_khz;
5167 reg_rule = ®dom->reg_rules[i];
5168 freq_range = ®_rule->freq_range;
5169 power_rule = ®_rule->power_rule;
5171 nl_reg_rule = nla_nest_start(msg, i);
5173 goto nla_put_failure_rcu;
5175 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5176 if (!max_bandwidth_khz)
5177 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5180 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5182 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5183 freq_range->start_freq_khz) ||
5184 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5185 freq_range->end_freq_khz) ||
5186 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5187 max_bandwidth_khz) ||
5188 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5189 power_rule->max_antenna_gain) ||
5190 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5191 power_rule->max_eirp) ||
5192 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5193 reg_rule->dfs_cac_ms))
5194 goto nla_put_failure_rcu;
5196 nla_nest_end(msg, nl_reg_rule);
5200 nla_nest_end(msg, nl_reg_rules);
5202 genlmsg_end(msg, hdr);
5203 return genlmsg_reply(msg, info);
5205 nla_put_failure_rcu:
5208 genlmsg_cancel(msg, hdr);
5214 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5216 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5217 struct nlattr *nl_reg_rule;
5218 char *alpha2 = NULL;
5219 int rem_reg_rules = 0, r = 0;
5220 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5221 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5222 struct ieee80211_regdomain *rd = NULL;
5224 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5227 if (!info->attrs[NL80211_ATTR_REG_RULES])
5230 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5232 if (info->attrs[NL80211_ATTR_DFS_REGION])
5233 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5235 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5238 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5242 if (!reg_is_valid_request(alpha2))
5245 size_of_regd = sizeof(struct ieee80211_regdomain) +
5246 num_rules * sizeof(struct ieee80211_reg_rule);
5248 rd = kzalloc(size_of_regd, GFP_KERNEL);
5252 rd->n_reg_rules = num_rules;
5253 rd->alpha2[0] = alpha2[0];
5254 rd->alpha2[1] = alpha2[1];
5257 * Disable DFS master mode if the DFS region was
5258 * not supported or known on this kernel.
5260 if (reg_supported_dfs_region(dfs_region))
5261 rd->dfs_region = dfs_region;
5263 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5265 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5266 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5270 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5276 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5283 /* set_regdom took ownership */
5291 static int validate_scan_freqs(struct nlattr *freqs)
5293 struct nlattr *attr1, *attr2;
5294 int n_channels = 0, tmp1, tmp2;
5296 nla_for_each_nested(attr1, freqs, tmp1) {
5299 * Some hardware has a limited channel list for
5300 * scanning, and it is pretty much nonsensical
5301 * to scan for a channel twice, so disallow that
5302 * and don't require drivers to check that the
5303 * channel list they get isn't longer than what
5304 * they can scan, as long as they can scan all
5305 * the channels they registered at once.
5307 nla_for_each_nested(attr2, freqs, tmp2)
5308 if (attr1 != attr2 &&
5309 nla_get_u32(attr1) == nla_get_u32(attr2))
5316 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5319 struct wireless_dev *wdev = info->user_ptr[1];
5320 struct cfg80211_scan_request *request;
5321 struct nlattr *attr;
5322 struct wiphy *wiphy;
5323 int err, tmp, n_ssids = 0, n_channels, i;
5326 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5329 wiphy = &rdev->wiphy;
5331 if (!rdev->ops->scan)
5334 if (rdev->scan_req || rdev->scan_msg) {
5339 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5340 n_channels = validate_scan_freqs(
5341 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5347 n_channels = ieee80211_get_num_supported_channels(wiphy);
5350 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5351 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5354 if (n_ssids > wiphy->max_scan_ssids) {
5359 if (info->attrs[NL80211_ATTR_IE])
5360 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5364 if (ie_len > wiphy->max_scan_ie_len) {
5369 request = kzalloc(sizeof(*request)
5370 + sizeof(*request->ssids) * n_ssids
5371 + sizeof(*request->channels) * n_channels
5372 + ie_len, GFP_KERNEL);
5379 request->ssids = (void *)&request->channels[n_channels];
5380 request->n_ssids = n_ssids;
5383 request->ie = (void *)(request->ssids + n_ssids);
5385 request->ie = (void *)(request->channels + n_channels);
5389 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5390 /* user specified, bail out if channel not found */
5391 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5392 struct ieee80211_channel *chan;
5394 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5401 /* ignore disabled channels */
5402 if (chan->flags & IEEE80211_CHAN_DISABLED)
5405 request->channels[i] = chan;
5409 enum ieee80211_band band;
5412 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5414 if (!wiphy->bands[band])
5416 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5417 struct ieee80211_channel *chan;
5419 chan = &wiphy->bands[band]->channels[j];
5421 if (chan->flags & IEEE80211_CHAN_DISABLED)
5424 request->channels[i] = chan;
5435 request->n_channels = i;
5438 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5439 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5440 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5444 request->ssids[i].ssid_len = nla_len(attr);
5445 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5450 if (info->attrs[NL80211_ATTR_IE]) {
5451 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5452 memcpy((void *)request->ie,
5453 nla_data(info->attrs[NL80211_ATTR_IE]),
5457 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5458 if (wiphy->bands[i])
5460 (1 << wiphy->bands[i]->n_bitrates) - 1;
5462 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5463 nla_for_each_nested(attr,
5464 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5466 enum ieee80211_band band = nla_type(attr);
5468 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5473 if (!wiphy->bands[band])
5476 err = ieee80211_get_ratemask(wiphy->bands[band],
5479 &request->rates[band]);
5485 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5486 request->flags = nla_get_u32(
5487 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5488 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5489 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5496 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5498 request->wdev = wdev;
5499 request->wiphy = &rdev->wiphy;
5500 request->scan_start = jiffies;
5502 rdev->scan_req = request;
5503 err = rdev_scan(rdev, request);
5506 nl80211_send_scan_start(rdev, wdev);
5508 dev_hold(wdev->netdev);
5511 rdev->scan_req = NULL;
5519 static int nl80211_start_sched_scan(struct sk_buff *skb,
5520 struct genl_info *info)
5522 struct cfg80211_sched_scan_request *request;
5523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5524 struct net_device *dev = info->user_ptr[1];
5525 struct nlattr *attr;
5526 struct wiphy *wiphy;
5527 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5529 enum ieee80211_band band;
5531 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5532 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5534 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5535 !rdev->ops->sched_scan_start)
5538 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5541 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5544 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5548 wiphy = &rdev->wiphy;
5550 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5551 n_channels = validate_scan_freqs(
5552 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5556 n_channels = ieee80211_get_num_supported_channels(wiphy);
5559 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5560 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5564 if (n_ssids > wiphy->max_sched_scan_ssids)
5568 * First, count the number of 'real' matchsets. Due to an issue with
5569 * the old implementation, matchsets containing only the RSSI attribute
5570 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5571 * RSSI for all matchsets, rather than their own matchset for reporting
5572 * all APs with a strong RSSI. This is needed to be compatible with
5573 * older userspace that treated a matchset with only the RSSI as the
5574 * global RSSI for all other matchsets - if there are other matchsets.
5576 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5577 nla_for_each_nested(attr,
5578 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5580 struct nlattr *rssi;
5582 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5583 nla_data(attr), nla_len(attr),
5584 nl80211_match_policy);
5587 /* add other standalone attributes here */
5588 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5592 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5594 default_match_rssi = nla_get_s32(rssi);
5598 /* However, if there's no other matchset, add the RSSI one */
5599 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5602 if (n_match_sets > wiphy->max_match_sets)
5605 if (info->attrs[NL80211_ATTR_IE])
5606 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5610 if (ie_len > wiphy->max_sched_scan_ie_len)
5613 if (rdev->sched_scan_req) {
5618 request = kzalloc(sizeof(*request)
5619 + sizeof(*request->ssids) * n_ssids
5620 + sizeof(*request->match_sets) * n_match_sets
5621 + sizeof(*request->channels) * n_channels
5622 + ie_len, GFP_KERNEL);
5629 request->ssids = (void *)&request->channels[n_channels];
5630 request->n_ssids = n_ssids;
5633 request->ie = (void *)(request->ssids + n_ssids);
5635 request->ie = (void *)(request->channels + n_channels);
5640 request->match_sets = (void *)(request->ie + ie_len);
5641 else if (request->ssids)
5642 request->match_sets =
5643 (void *)(request->ssids + n_ssids);
5645 request->match_sets =
5646 (void *)(request->channels + n_channels);
5648 request->n_match_sets = n_match_sets;
5651 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5652 /* user specified, bail out if channel not found */
5653 nla_for_each_nested(attr,
5654 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5656 struct ieee80211_channel *chan;
5658 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5665 /* ignore disabled channels */
5666 if (chan->flags & IEEE80211_CHAN_DISABLED)
5669 request->channels[i] = chan;
5674 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5676 if (!wiphy->bands[band])
5678 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5679 struct ieee80211_channel *chan;
5681 chan = &wiphy->bands[band]->channels[j];
5683 if (chan->flags & IEEE80211_CHAN_DISABLED)
5686 request->channels[i] = chan;
5697 request->n_channels = i;
5700 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5701 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5703 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5707 request->ssids[i].ssid_len = nla_len(attr);
5708 memcpy(request->ssids[i].ssid, nla_data(attr),
5715 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5716 nla_for_each_nested(attr,
5717 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5719 struct nlattr *ssid, *rssi;
5721 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5722 nla_data(attr), nla_len(attr),
5723 nl80211_match_policy);
5726 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5728 if (WARN_ON(i >= n_match_sets)) {
5729 /* this indicates a programming error,
5730 * the loop above should have verified
5737 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5741 memcpy(request->match_sets[i].ssid.ssid,
5742 nla_data(ssid), nla_len(ssid));
5743 request->match_sets[i].ssid.ssid_len =
5745 /* special attribute - old implemenation w/a */
5746 request->match_sets[i].rssi_thold =
5748 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5750 request->match_sets[i].rssi_thold =
5756 /* there was no other matchset, so the RSSI one is alone */
5758 request->match_sets[0].rssi_thold = default_match_rssi;
5760 request->min_rssi_thold = INT_MAX;
5761 for (i = 0; i < n_match_sets; i++)
5762 request->min_rssi_thold =
5763 min(request->match_sets[i].rssi_thold,
5764 request->min_rssi_thold);
5766 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
5770 request->ie_len = ie_len;
5771 memcpy((void *)request->ie,
5772 nla_data(info->attrs[NL80211_ATTR_IE]),
5776 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5777 request->flags = nla_get_u32(
5778 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5779 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5780 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5787 request->wiphy = &rdev->wiphy;
5788 request->interval = interval;
5789 request->scan_start = jiffies;
5791 err = rdev_sched_scan_start(rdev, dev, request);
5793 rdev->sched_scan_req = request;
5794 nl80211_send_sched_scan(rdev, dev,
5795 NL80211_CMD_START_SCHED_SCAN);
5805 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5806 struct genl_info *info)
5808 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5810 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5811 !rdev->ops->sched_scan_stop)
5814 return __cfg80211_stop_sched_scan(rdev, false);
5817 static int nl80211_start_radar_detection(struct sk_buff *skb,
5818 struct genl_info *info)
5820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5821 struct net_device *dev = info->user_ptr[1];
5822 struct wireless_dev *wdev = dev->ieee80211_ptr;
5823 struct cfg80211_chan_def chandef;
5824 enum nl80211_dfs_regions dfs_region;
5825 unsigned int cac_time_ms;
5828 dfs_region = reg_get_dfs_region(wdev->wiphy);
5829 if (dfs_region == NL80211_DFS_UNSET)
5832 err = nl80211_parse_chandef(rdev, info, &chandef);
5836 if (netif_carrier_ok(dev))
5839 if (wdev->cac_started)
5842 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
5850 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5853 if (!rdev->ops->start_radar_detection)
5856 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5857 if (WARN_ON(!cac_time_ms))
5858 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5860 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5863 wdev->chandef = chandef;
5864 wdev->cac_started = true;
5865 wdev->cac_start_time = jiffies;
5866 wdev->cac_time_ms = cac_time_ms;
5871 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5873 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5874 struct net_device *dev = info->user_ptr[1];
5875 struct wireless_dev *wdev = dev->ieee80211_ptr;
5876 struct cfg80211_csa_settings params;
5877 /* csa_attrs is defined static to avoid waste of stack size - this
5878 * function is called under RTNL lock, so this should not be a problem.
5880 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5881 u8 radar_detect_width = 0;
5883 bool need_new_beacon = false;
5886 if (!rdev->ops->channel_switch ||
5887 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5890 switch (dev->ieee80211_ptr->iftype) {
5891 case NL80211_IFTYPE_AP:
5892 case NL80211_IFTYPE_P2P_GO:
5893 need_new_beacon = true;
5895 /* useless if AP is not running */
5896 if (!wdev->beacon_interval)
5899 case NL80211_IFTYPE_ADHOC:
5900 if (!wdev->ssid_len)
5903 case NL80211_IFTYPE_MESH_POINT:
5904 if (!wdev->mesh_id_len)
5911 memset(¶ms, 0, sizeof(params));
5913 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5914 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5917 /* only important for AP, IBSS and mesh create IEs internally */
5918 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5921 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5923 if (!need_new_beacon)
5926 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5930 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5931 info->attrs[NL80211_ATTR_CSA_IES],
5936 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5940 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5943 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5944 if (!len || (len % sizeof(u16)))
5947 params.n_counter_offsets_beacon = len / sizeof(u16);
5948 if (rdev->wiphy.max_num_csa_counters &&
5949 (params.n_counter_offsets_beacon >
5950 rdev->wiphy.max_num_csa_counters))
5953 params.counter_offsets_beacon =
5954 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5956 /* sanity checks - counters should fit and be the same */
5957 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5958 u16 offset = params.counter_offsets_beacon[i];
5960 if (offset >= params.beacon_csa.tail_len)
5963 if (params.beacon_csa.tail[offset] != params.count)
5967 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5968 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5969 if (!len || (len % sizeof(u16)))
5972 params.n_counter_offsets_presp = len / sizeof(u16);
5973 if (rdev->wiphy.max_num_csa_counters &&
5974 (params.n_counter_offsets_beacon >
5975 rdev->wiphy.max_num_csa_counters))
5978 params.counter_offsets_presp =
5979 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5981 /* sanity checks - counters should fit and be the same */
5982 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5983 u16 offset = params.counter_offsets_presp[i];
5985 if (offset >= params.beacon_csa.probe_resp_len)
5988 if (params.beacon_csa.probe_resp[offset] !=
5995 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
5999 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
6003 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6010 radar_detect_width = BIT(params.chandef.width);
6011 params.radar_required = true;
6014 /* TODO: I left this here for now. With channel switch, the
6015 * verification is a bit more complicated, because we only do
6016 * it later when the channel switch really happens.
6018 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
6019 params.chandef.chan,
6021 radar_detect_width);
6025 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6026 params.block_tx = true;
6029 err = rdev_channel_switch(rdev, dev, ¶ms);
6035 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6037 struct cfg80211_registered_device *rdev,
6038 struct wireless_dev *wdev,
6039 struct cfg80211_internal_bss *intbss)
6041 struct cfg80211_bss *res = &intbss->pub;
6042 const struct cfg80211_bss_ies *ies;
6047 ASSERT_WDEV_LOCK(wdev);
6049 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6050 NL80211_CMD_NEW_SCAN_RESULTS);
6054 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6056 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6057 goto nla_put_failure;
6059 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6060 goto nla_put_failure;
6061 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6062 goto nla_put_failure;
6064 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6066 goto nla_put_failure;
6067 if ((!is_zero_ether_addr(res->bssid) &&
6068 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6069 goto nla_put_failure;
6072 ies = rcu_dereference(res->ies);
6074 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6075 goto fail_unlock_rcu;
6077 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6078 ies->len, ies->data))
6079 goto fail_unlock_rcu;
6081 ies = rcu_dereference(res->beacon_ies);
6083 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6084 goto fail_unlock_rcu;
6085 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6086 ies->len, ies->data))
6087 goto fail_unlock_rcu;
6091 if (res->beacon_interval &&
6092 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6093 goto nla_put_failure;
6094 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6095 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6096 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6097 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6098 jiffies_to_msecs(jiffies - intbss->ts)))
6099 goto nla_put_failure;
6101 switch (rdev->wiphy.signal_type) {
6102 case CFG80211_SIGNAL_TYPE_MBM:
6103 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6104 goto nla_put_failure;
6106 case CFG80211_SIGNAL_TYPE_UNSPEC:
6107 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6108 goto nla_put_failure;
6114 switch (wdev->iftype) {
6115 case NL80211_IFTYPE_P2P_CLIENT:
6116 case NL80211_IFTYPE_STATION:
6117 if (intbss == wdev->current_bss &&
6118 nla_put_u32(msg, NL80211_BSS_STATUS,
6119 NL80211_BSS_STATUS_ASSOCIATED))
6120 goto nla_put_failure;
6122 case NL80211_IFTYPE_ADHOC:
6123 if (intbss == wdev->current_bss &&
6124 nla_put_u32(msg, NL80211_BSS_STATUS,
6125 NL80211_BSS_STATUS_IBSS_JOINED))
6126 goto nla_put_failure;
6132 nla_nest_end(msg, bss);
6134 return genlmsg_end(msg, hdr);
6139 genlmsg_cancel(msg, hdr);
6143 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6145 struct cfg80211_registered_device *rdev;
6146 struct cfg80211_internal_bss *scan;
6147 struct wireless_dev *wdev;
6148 int start = cb->args[2], idx = 0;
6151 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6156 spin_lock_bh(&rdev->bss_lock);
6157 cfg80211_bss_expire(rdev);
6159 cb->seq = rdev->bss_generation;
6161 list_for_each_entry(scan, &rdev->bss_list, list) {
6164 if (nl80211_send_bss(skb, cb,
6165 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6166 rdev, wdev, scan) < 0) {
6172 spin_unlock_bh(&rdev->bss_lock);
6176 nl80211_finish_wdev_dump(rdev);
6181 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6182 int flags, struct net_device *dev,
6183 struct survey_info *survey)
6186 struct nlattr *infoattr;
6188 hdr = nl80211hdr_put(msg, portid, seq, flags,
6189 NL80211_CMD_NEW_SURVEY_RESULTS);
6193 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6194 goto nla_put_failure;
6196 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6198 goto nla_put_failure;
6200 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6201 survey->channel->center_freq))
6202 goto nla_put_failure;
6204 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6205 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6206 goto nla_put_failure;
6207 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6208 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6209 goto nla_put_failure;
6210 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6211 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6212 survey->channel_time))
6213 goto nla_put_failure;
6214 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6215 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6216 survey->channel_time_busy))
6217 goto nla_put_failure;
6218 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6219 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6220 survey->channel_time_ext_busy))
6221 goto nla_put_failure;
6222 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6223 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6224 survey->channel_time_rx))
6225 goto nla_put_failure;
6226 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6227 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6228 survey->channel_time_tx))
6229 goto nla_put_failure;
6231 nla_nest_end(msg, infoattr);
6233 return genlmsg_end(msg, hdr);
6236 genlmsg_cancel(msg, hdr);
6240 static int nl80211_dump_survey(struct sk_buff *skb,
6241 struct netlink_callback *cb)
6243 struct survey_info survey;
6244 struct cfg80211_registered_device *rdev;
6245 struct wireless_dev *wdev;
6246 int survey_idx = cb->args[2];
6249 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6253 if (!wdev->netdev) {
6258 if (!rdev->ops->dump_survey) {
6264 struct ieee80211_channel *chan;
6266 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6272 /* Survey without a channel doesn't make sense */
6273 if (!survey.channel) {
6278 chan = ieee80211_get_channel(&rdev->wiphy,
6279 survey.channel->center_freq);
6280 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6285 if (nl80211_send_survey(skb,
6286 NETLINK_CB(cb->skb).portid,
6287 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6288 wdev->netdev, &survey) < 0)
6294 cb->args[2] = survey_idx;
6297 nl80211_finish_wdev_dump(rdev);
6301 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6303 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6304 NL80211_WPA_VERSION_2));
6307 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6310 struct net_device *dev = info->user_ptr[1];
6311 struct ieee80211_channel *chan;
6312 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6313 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6314 enum nl80211_auth_type auth_type;
6315 struct key_parse key;
6316 bool local_state_change;
6318 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6321 if (!info->attrs[NL80211_ATTR_MAC])
6324 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6327 if (!info->attrs[NL80211_ATTR_SSID])
6330 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6333 err = nl80211_parse_key(info, &key);
6338 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6340 if (!key.p.key || !key.p.key_len)
6342 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6343 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6344 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6345 key.p.key_len != WLAN_KEY_LEN_WEP104))
6357 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6358 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6367 if (!rdev->ops->auth)
6370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6371 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6374 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6375 chan = nl80211_get_valid_chan(&rdev->wiphy,
6376 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6380 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6381 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6383 if (info->attrs[NL80211_ATTR_IE]) {
6384 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6385 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6388 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6389 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6392 if (auth_type == NL80211_AUTHTYPE_SAE &&
6393 !info->attrs[NL80211_ATTR_SAE_DATA])
6396 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6397 if (auth_type != NL80211_AUTHTYPE_SAE)
6399 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6400 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6401 /* need to include at least Auth Transaction and Status Code */
6402 if (sae_data_len < 4)
6406 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6409 * Since we no longer track auth state, ignore
6410 * requests to only change local state.
6412 if (local_state_change)
6415 wdev_lock(dev->ieee80211_ptr);
6416 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6417 ssid, ssid_len, ie, ie_len,
6418 key.p.key, key.p.key_len, key.idx,
6419 sae_data, sae_data_len);
6420 wdev_unlock(dev->ieee80211_ptr);
6424 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6425 struct genl_info *info,
6426 struct cfg80211_crypto_settings *settings,
6429 memset(settings, 0, sizeof(*settings));
6431 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6433 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6435 proto = nla_get_u16(
6436 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6437 settings->control_port_ethertype = cpu_to_be16(proto);
6438 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6441 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6442 settings->control_port_no_encrypt = true;
6444 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6446 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6450 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6451 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6452 settings->n_ciphers_pairwise = len / sizeof(u32);
6454 if (len % sizeof(u32))
6457 if (settings->n_ciphers_pairwise > cipher_limit)
6460 memcpy(settings->ciphers_pairwise, data, len);
6462 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6463 if (!cfg80211_supported_cipher_suite(
6465 settings->ciphers_pairwise[i]))
6469 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6470 settings->cipher_group =
6471 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6472 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6473 settings->cipher_group))
6477 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6478 settings->wpa_versions =
6479 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6480 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6484 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6488 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6489 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6490 settings->n_akm_suites = len / sizeof(u32);
6492 if (len % sizeof(u32))
6495 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6498 memcpy(settings->akm_suites, data, len);
6504 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6506 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6507 struct net_device *dev = info->user_ptr[1];
6508 struct ieee80211_channel *chan;
6509 struct cfg80211_assoc_request req = {};
6510 const u8 *bssid, *ssid;
6511 int err, ssid_len = 0;
6513 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6516 if (!info->attrs[NL80211_ATTR_MAC] ||
6517 !info->attrs[NL80211_ATTR_SSID] ||
6518 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6521 if (!rdev->ops->assoc)
6524 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6525 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6528 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6530 chan = nl80211_get_valid_chan(&rdev->wiphy,
6531 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6535 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6536 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6538 if (info->attrs[NL80211_ATTR_IE]) {
6539 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6540 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6543 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6544 enum nl80211_mfp mfp =
6545 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6546 if (mfp == NL80211_MFP_REQUIRED)
6548 else if (mfp != NL80211_MFP_NO)
6552 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6553 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6555 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6556 req.flags |= ASSOC_REQ_DISABLE_HT;
6558 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6559 memcpy(&req.ht_capa_mask,
6560 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6561 sizeof(req.ht_capa_mask));
6563 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6564 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6566 memcpy(&req.ht_capa,
6567 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6568 sizeof(req.ht_capa));
6571 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6572 req.flags |= ASSOC_REQ_DISABLE_VHT;
6574 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6575 memcpy(&req.vht_capa_mask,
6576 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6577 sizeof(req.vht_capa_mask));
6579 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6580 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6582 memcpy(&req.vht_capa,
6583 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6584 sizeof(req.vht_capa));
6587 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6589 wdev_lock(dev->ieee80211_ptr);
6590 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6591 ssid, ssid_len, &req);
6592 wdev_unlock(dev->ieee80211_ptr);
6598 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6600 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6601 struct net_device *dev = info->user_ptr[1];
6602 const u8 *ie = NULL, *bssid;
6603 int ie_len = 0, err;
6605 bool local_state_change;
6607 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6610 if (!info->attrs[NL80211_ATTR_MAC])
6613 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6616 if (!rdev->ops->deauth)
6619 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6620 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6623 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6625 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6626 if (reason_code == 0) {
6627 /* Reason Code 0 is reserved */
6631 if (info->attrs[NL80211_ATTR_IE]) {
6632 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6633 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6636 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6638 wdev_lock(dev->ieee80211_ptr);
6639 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6640 local_state_change);
6641 wdev_unlock(dev->ieee80211_ptr);
6645 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6647 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6648 struct net_device *dev = info->user_ptr[1];
6649 const u8 *ie = NULL, *bssid;
6650 int ie_len = 0, err;
6652 bool local_state_change;
6654 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6657 if (!info->attrs[NL80211_ATTR_MAC])
6660 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6663 if (!rdev->ops->disassoc)
6666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6667 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6670 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6672 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6673 if (reason_code == 0) {
6674 /* Reason Code 0 is reserved */
6678 if (info->attrs[NL80211_ATTR_IE]) {
6679 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6680 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6683 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6685 wdev_lock(dev->ieee80211_ptr);
6686 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6687 local_state_change);
6688 wdev_unlock(dev->ieee80211_ptr);
6693 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6694 int mcast_rate[IEEE80211_NUM_BANDS],
6697 struct wiphy *wiphy = &rdev->wiphy;
6701 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6702 struct ieee80211_supported_band *sband;
6704 sband = wiphy->bands[band];
6708 for (i = 0; i < sband->n_bitrates; i++) {
6709 if (sband->bitrates[i].bitrate == rateval) {
6710 mcast_rate[band] = i + 1;
6720 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6722 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6723 struct net_device *dev = info->user_ptr[1];
6724 struct cfg80211_ibss_params ibss;
6725 struct wiphy *wiphy;
6726 struct cfg80211_cached_keys *connkeys = NULL;
6729 memset(&ibss, 0, sizeof(ibss));
6731 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6734 if (!info->attrs[NL80211_ATTR_SSID] ||
6735 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6738 ibss.beacon_interval = 100;
6740 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6741 ibss.beacon_interval =
6742 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6743 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6747 if (!rdev->ops->join_ibss)
6750 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6753 wiphy = &rdev->wiphy;
6755 if (info->attrs[NL80211_ATTR_MAC]) {
6756 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6758 if (!is_valid_ether_addr(ibss.bssid))
6761 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6762 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6764 if (info->attrs[NL80211_ATTR_IE]) {
6765 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6766 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6769 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6773 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6774 NL80211_IFTYPE_ADHOC))
6777 switch (ibss.chandef.width) {
6778 case NL80211_CHAN_WIDTH_5:
6779 case NL80211_CHAN_WIDTH_10:
6780 case NL80211_CHAN_WIDTH_20_NOHT:
6782 case NL80211_CHAN_WIDTH_20:
6783 case NL80211_CHAN_WIDTH_40:
6784 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6790 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6791 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6793 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6795 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6797 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6798 struct ieee80211_supported_band *sband =
6799 wiphy->bands[ibss.chandef.chan->band];
6801 err = ieee80211_get_ratemask(sband, rates, n_rates,
6807 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6808 memcpy(&ibss.ht_capa_mask,
6809 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6810 sizeof(ibss.ht_capa_mask));
6812 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6813 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6815 memcpy(&ibss.ht_capa,
6816 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6817 sizeof(ibss.ht_capa));
6820 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6821 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6822 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6825 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6828 connkeys = nl80211_parse_connkeys(rdev,
6829 info->attrs[NL80211_ATTR_KEYS],
6831 if (IS_ERR(connkeys))
6832 return PTR_ERR(connkeys);
6834 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6842 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6844 ibss.userspace_handles_dfs =
6845 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6847 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6853 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6855 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6856 struct net_device *dev = info->user_ptr[1];
6858 if (!rdev->ops->leave_ibss)
6861 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6864 return cfg80211_leave_ibss(rdev, dev, false);
6867 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6870 struct net_device *dev = info->user_ptr[1];
6871 int mcast_rate[IEEE80211_NUM_BANDS];
6875 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6876 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6879 if (!rdev->ops->set_mcast_rate)
6882 memset(mcast_rate, 0, sizeof(mcast_rate));
6884 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6887 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6888 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6891 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6896 static struct sk_buff *
6897 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6898 int approxlen, u32 portid, u32 seq,
6899 enum nl80211_commands cmd,
6900 enum nl80211_attrs attr,
6901 const struct nl80211_vendor_cmd_info *info,
6904 struct sk_buff *skb;
6906 struct nlattr *data;
6908 skb = nlmsg_new(approxlen + 100, gfp);
6912 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6918 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6919 goto nla_put_failure;
6922 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6924 goto nla_put_failure;
6925 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6927 goto nla_put_failure;
6930 data = nla_nest_start(skb, attr);
6932 ((void **)skb->cb)[0] = rdev;
6933 ((void **)skb->cb)[1] = hdr;
6934 ((void **)skb->cb)[2] = data;
6943 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6944 enum nl80211_commands cmd,
6945 enum nl80211_attrs attr,
6946 int vendor_event_idx,
6947 int approxlen, gfp_t gfp)
6949 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6950 const struct nl80211_vendor_cmd_info *info;
6953 case NL80211_CMD_TESTMODE:
6954 if (WARN_ON(vendor_event_idx != -1))
6958 case NL80211_CMD_VENDOR:
6959 if (WARN_ON(vendor_event_idx < 0 ||
6960 vendor_event_idx >= wiphy->n_vendor_events))
6962 info = &wiphy->vendor_events[vendor_event_idx];
6969 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6970 cmd, attr, info, gfp);
6972 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6974 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6976 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6977 void *hdr = ((void **)skb->cb)[1];
6978 struct nlattr *data = ((void **)skb->cb)[2];
6979 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6981 nla_nest_end(skb, data);
6982 genlmsg_end(skb, hdr);
6984 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6985 mcgrp = NL80211_MCGRP_VENDOR;
6987 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6990 EXPORT_SYMBOL(__cfg80211_send_event_skb);
6992 #ifdef CONFIG_NL80211_TESTMODE
6993 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6995 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6996 struct wireless_dev *wdev =
6997 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7000 if (!rdev->ops->testmode_cmd)
7004 err = PTR_ERR(wdev);
7008 } else if (wdev->wiphy != &rdev->wiphy) {
7012 if (!info->attrs[NL80211_ATTR_TESTDATA])
7015 rdev->cur_cmd_info = info;
7016 err = rdev_testmode_cmd(rdev, wdev,
7017 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7018 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7019 rdev->cur_cmd_info = NULL;
7024 static int nl80211_testmode_dump(struct sk_buff *skb,
7025 struct netlink_callback *cb)
7027 struct cfg80211_registered_device *rdev;
7037 * 0 is a valid index, but not valid for args[0],
7038 * so we need to offset by 1.
7040 phy_idx = cb->args[0] - 1;
7042 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7043 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7048 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7049 nl80211_fam.attrbuf);
7051 err = PTR_ERR(rdev);
7054 phy_idx = rdev->wiphy_idx;
7057 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7059 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7063 data = nla_data((void *)cb->args[1]);
7064 data_len = nla_len((void *)cb->args[1]);
7067 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7073 if (!rdev->ops->testmode_dump) {
7079 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7080 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7081 NL80211_CMD_TESTMODE);
7082 struct nlattr *tmdata;
7087 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7088 genlmsg_cancel(skb, hdr);
7092 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7094 genlmsg_cancel(skb, hdr);
7097 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7098 nla_nest_end(skb, tmdata);
7100 if (err == -ENOBUFS || err == -ENOENT) {
7101 genlmsg_cancel(skb, hdr);
7104 genlmsg_cancel(skb, hdr);
7108 genlmsg_end(skb, hdr);
7113 cb->args[0] = phy_idx + 1;
7120 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7123 struct net_device *dev = info->user_ptr[1];
7124 struct cfg80211_connect_params connect;
7125 struct wiphy *wiphy;
7126 struct cfg80211_cached_keys *connkeys = NULL;
7129 memset(&connect, 0, sizeof(connect));
7131 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7134 if (!info->attrs[NL80211_ATTR_SSID] ||
7135 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7138 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7140 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7141 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7142 NL80211_CMD_CONNECT))
7145 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7147 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7149 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7150 NL80211_MAX_NR_CIPHER_SUITES);
7154 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7155 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7158 wiphy = &rdev->wiphy;
7160 connect.bg_scan_period = -1;
7161 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7162 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7163 connect.bg_scan_period =
7164 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7167 if (info->attrs[NL80211_ATTR_MAC])
7168 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7169 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7170 connect.bssid_hint =
7171 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7172 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7173 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7175 if (info->attrs[NL80211_ATTR_IE]) {
7176 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7177 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7180 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7181 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7182 if (connect.mfp != NL80211_MFP_REQUIRED &&
7183 connect.mfp != NL80211_MFP_NO)
7186 connect.mfp = NL80211_MFP_NO;
7189 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7190 connect.channel = nl80211_get_valid_chan(
7191 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7192 if (!connect.channel)
7194 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7195 connect.channel_hint = nl80211_get_valid_chan(
7196 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7197 if (!connect.channel_hint)
7201 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7202 connkeys = nl80211_parse_connkeys(rdev,
7203 info->attrs[NL80211_ATTR_KEYS], NULL);
7204 if (IS_ERR(connkeys))
7205 return PTR_ERR(connkeys);
7208 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7209 connect.flags |= ASSOC_REQ_DISABLE_HT;
7211 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7212 memcpy(&connect.ht_capa_mask,
7213 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7214 sizeof(connect.ht_capa_mask));
7216 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7217 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7221 memcpy(&connect.ht_capa,
7222 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7223 sizeof(connect.ht_capa));
7226 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7227 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7229 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7230 memcpy(&connect.vht_capa_mask,
7231 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7232 sizeof(connect.vht_capa_mask));
7234 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7235 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7239 memcpy(&connect.vht_capa,
7240 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7241 sizeof(connect.vht_capa));
7244 wdev_lock(dev->ieee80211_ptr);
7245 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7246 wdev_unlock(dev->ieee80211_ptr);
7252 static int nl80211_disconnect(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];
7259 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7260 reason = WLAN_REASON_DEAUTH_LEAVING;
7262 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7267 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7268 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7271 wdev_lock(dev->ieee80211_ptr);
7272 ret = cfg80211_disconnect(rdev, dev, reason, true);
7273 wdev_unlock(dev->ieee80211_ptr);
7277 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7284 if (!info->attrs[NL80211_ATTR_PID])
7287 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7289 net = get_net_ns_by_pid(pid);
7291 return PTR_ERR(net);
7295 /* check if anything to do */
7296 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7297 err = cfg80211_switch_netns(rdev, net);
7303 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7305 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7306 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7307 struct cfg80211_pmksa *pmksa) = NULL;
7308 struct net_device *dev = info->user_ptr[1];
7309 struct cfg80211_pmksa pmksa;
7311 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7313 if (!info->attrs[NL80211_ATTR_MAC])
7316 if (!info->attrs[NL80211_ATTR_PMKID])
7319 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7320 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7322 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7323 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7326 switch (info->genlhdr->cmd) {
7327 case NL80211_CMD_SET_PMKSA:
7328 rdev_ops = rdev->ops->set_pmksa;
7330 case NL80211_CMD_DEL_PMKSA:
7331 rdev_ops = rdev->ops->del_pmksa;
7341 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7344 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7347 struct net_device *dev = info->user_ptr[1];
7349 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7350 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7353 if (!rdev->ops->flush_pmksa)
7356 return rdev_flush_pmksa(rdev, dev);
7359 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7361 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7362 struct net_device *dev = info->user_ptr[1];
7363 u8 action_code, dialog_token;
7364 u32 peer_capability = 0;
7368 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7369 !rdev->ops->tdls_mgmt)
7372 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7373 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7374 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7375 !info->attrs[NL80211_ATTR_IE] ||
7376 !info->attrs[NL80211_ATTR_MAC])
7379 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7380 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7381 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7382 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7383 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7385 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7387 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7388 dialog_token, status_code, peer_capability,
7389 nla_data(info->attrs[NL80211_ATTR_IE]),
7390 nla_len(info->attrs[NL80211_ATTR_IE]));
7393 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7395 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7396 struct net_device *dev = info->user_ptr[1];
7397 enum nl80211_tdls_operation operation;
7400 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7401 !rdev->ops->tdls_oper)
7404 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7405 !info->attrs[NL80211_ATTR_MAC])
7408 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7409 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7411 return rdev_tdls_oper(rdev, dev, peer, operation);
7414 static int nl80211_remain_on_channel(struct sk_buff *skb,
7415 struct genl_info *info)
7417 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7418 struct wireless_dev *wdev = info->user_ptr[1];
7419 struct cfg80211_chan_def chandef;
7420 struct sk_buff *msg;
7426 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7427 !info->attrs[NL80211_ATTR_DURATION])
7430 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7432 if (!rdev->ops->remain_on_channel ||
7433 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7437 * We should be on that channel for at least a minimum amount of
7438 * time (10ms) but no longer than the driver supports.
7440 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7441 duration > rdev->wiphy.max_remain_on_channel_duration)
7444 err = nl80211_parse_chandef(rdev, info, &chandef);
7448 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7452 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7453 NL80211_CMD_REMAIN_ON_CHANNEL);
7459 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7465 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7466 goto nla_put_failure;
7468 genlmsg_end(msg, hdr);
7470 return genlmsg_reply(msg, info);
7479 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7480 struct genl_info *info)
7482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7483 struct wireless_dev *wdev = info->user_ptr[1];
7486 if (!info->attrs[NL80211_ATTR_COOKIE])
7489 if (!rdev->ops->cancel_remain_on_channel)
7492 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7494 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7497 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7498 u8 *rates, u8 rates_len)
7503 for (i = 0; i < rates_len; i++) {
7504 int rate = (rates[i] & 0x7f) * 5;
7506 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7507 struct ieee80211_rate *srate =
7508 &sband->bitrates[ridx];
7509 if (rate == srate->bitrate) {
7514 if (ridx == sband->n_bitrates)
7515 return 0; /* rate not found */
7521 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7522 u8 *rates, u8 rates_len,
7523 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7527 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7529 for (i = 0; i < rates_len; i++) {
7532 ridx = rates[i] / 8;
7533 rbit = BIT(rates[i] % 8);
7535 /* check validity */
7536 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7539 /* check availability */
7540 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7549 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7553 switch (vht_mcs_map) {
7554 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7556 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7559 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7562 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7572 static void vht_build_mcs_mask(u16 vht_mcs_map,
7573 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7577 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7578 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7583 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7584 struct nl80211_txrate_vht *txrate,
7585 u16 mcs[NL80211_VHT_NSS_MAX])
7587 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7588 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7591 if (!sband->vht_cap.vht_supported)
7594 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7596 /* Build vht_mcs_mask from VHT capabilities */
7597 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7599 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7600 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7601 mcs[i] = txrate->mcs[i];
7609 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7610 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7611 .len = NL80211_MAX_SUPP_RATES },
7612 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7613 .len = NL80211_MAX_SUPP_HT_RATES },
7614 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7615 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7618 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7619 struct genl_info *info)
7621 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7623 struct cfg80211_bitrate_mask mask;
7625 struct net_device *dev = info->user_ptr[1];
7626 struct nlattr *tx_rates;
7627 struct ieee80211_supported_band *sband;
7630 if (!rdev->ops->set_bitrate_mask)
7633 memset(&mask, 0, sizeof(mask));
7634 /* Default to all rates enabled */
7635 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7636 sband = rdev->wiphy.bands[i];
7641 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7642 memcpy(mask.control[i].ht_mcs,
7643 sband->ht_cap.mcs.rx_mask,
7644 sizeof(mask.control[i].ht_mcs));
7646 if (!sband->vht_cap.vht_supported)
7649 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7650 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7653 /* if no rates are given set it back to the defaults */
7654 if (!info->attrs[NL80211_ATTR_TX_RATES])
7658 * The nested attribute uses enum nl80211_band as the index. This maps
7659 * directly to the enum ieee80211_band values used in cfg80211.
7661 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7662 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7663 enum ieee80211_band band = nla_type(tx_rates);
7666 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7668 sband = rdev->wiphy.bands[band];
7671 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7672 nla_len(tx_rates), nl80211_txattr_policy);
7675 if (tb[NL80211_TXRATE_LEGACY]) {
7676 mask.control[band].legacy = rateset_to_mask(
7678 nla_data(tb[NL80211_TXRATE_LEGACY]),
7679 nla_len(tb[NL80211_TXRATE_LEGACY]));
7680 if ((mask.control[band].legacy == 0) &&
7681 nla_len(tb[NL80211_TXRATE_LEGACY]))
7684 if (tb[NL80211_TXRATE_HT]) {
7685 if (!ht_rateset_to_mask(
7687 nla_data(tb[NL80211_TXRATE_HT]),
7688 nla_len(tb[NL80211_TXRATE_HT]),
7689 mask.control[band].ht_mcs))
7692 if (tb[NL80211_TXRATE_VHT]) {
7693 if (!vht_set_mcs_mask(
7695 nla_data(tb[NL80211_TXRATE_VHT]),
7696 mask.control[band].vht_mcs))
7699 if (tb[NL80211_TXRATE_GI]) {
7700 mask.control[band].gi =
7701 nla_get_u8(tb[NL80211_TXRATE_GI]);
7702 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7706 if (mask.control[band].legacy == 0) {
7707 /* don't allow empty legacy rates if HT or VHT
7708 * are not even supported.
7710 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7711 rdev->wiphy.bands[band]->vht_cap.vht_supported))
7714 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7715 if (mask.control[band].ht_mcs[i])
7718 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7719 if (mask.control[band].vht_mcs[i])
7722 /* legacy and mcs rates may not be both empty */
7728 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7731 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7733 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7734 struct wireless_dev *wdev = info->user_ptr[1];
7735 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7737 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7740 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7741 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7743 switch (wdev->iftype) {
7744 case NL80211_IFTYPE_STATION:
7745 case NL80211_IFTYPE_ADHOC:
7746 case NL80211_IFTYPE_P2P_CLIENT:
7747 case NL80211_IFTYPE_AP:
7748 case NL80211_IFTYPE_AP_VLAN:
7749 case NL80211_IFTYPE_MESH_POINT:
7750 case NL80211_IFTYPE_P2P_GO:
7751 case NL80211_IFTYPE_P2P_DEVICE:
7757 /* not much point in registering if we can't reply */
7758 if (!rdev->ops->mgmt_tx)
7761 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7762 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7763 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7766 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7768 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7769 struct wireless_dev *wdev = info->user_ptr[1];
7770 struct cfg80211_chan_def chandef;
7774 struct sk_buff *msg = NULL;
7775 struct cfg80211_mgmt_tx_params params = {
7776 .dont_wait_for_ack =
7777 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7780 if (!info->attrs[NL80211_ATTR_FRAME])
7783 if (!rdev->ops->mgmt_tx)
7786 switch (wdev->iftype) {
7787 case NL80211_IFTYPE_P2P_DEVICE:
7788 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7790 case NL80211_IFTYPE_STATION:
7791 case NL80211_IFTYPE_ADHOC:
7792 case NL80211_IFTYPE_P2P_CLIENT:
7793 case NL80211_IFTYPE_AP:
7794 case NL80211_IFTYPE_AP_VLAN:
7795 case NL80211_IFTYPE_MESH_POINT:
7796 case NL80211_IFTYPE_P2P_GO:
7802 if (info->attrs[NL80211_ATTR_DURATION]) {
7803 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7805 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7808 * We should wait on the channel for at least a minimum amount
7809 * of time (10ms) but no longer than the driver supports.
7811 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7812 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7817 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7819 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7822 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7824 /* get the channel if any has been specified, otherwise pass NULL to
7825 * the driver. The latter will use the current one
7827 chandef.chan = NULL;
7828 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7829 err = nl80211_parse_chandef(rdev, info, &chandef);
7834 if (!chandef.chan && params.offchan)
7837 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7838 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7840 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7841 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7844 if (len % sizeof(u16))
7847 params.n_csa_offsets = len / sizeof(u16);
7848 params.csa_offsets =
7849 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7851 /* check that all the offsets fit the frame */
7852 for (i = 0; i < params.n_csa_offsets; i++) {
7853 if (params.csa_offsets[i] >= params.len)
7858 if (!params.dont_wait_for_ack) {
7859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7863 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7871 params.chan = chandef.chan;
7872 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7877 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7878 goto nla_put_failure;
7880 genlmsg_end(msg, hdr);
7881 return genlmsg_reply(msg, info);
7893 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7896 struct wireless_dev *wdev = info->user_ptr[1];
7899 if (!info->attrs[NL80211_ATTR_COOKIE])
7902 if (!rdev->ops->mgmt_tx_cancel_wait)
7905 switch (wdev->iftype) {
7906 case NL80211_IFTYPE_STATION:
7907 case NL80211_IFTYPE_ADHOC:
7908 case NL80211_IFTYPE_P2P_CLIENT:
7909 case NL80211_IFTYPE_AP:
7910 case NL80211_IFTYPE_AP_VLAN:
7911 case NL80211_IFTYPE_P2P_GO:
7912 case NL80211_IFTYPE_P2P_DEVICE:
7918 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7920 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7923 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7926 struct wireless_dev *wdev;
7927 struct net_device *dev = info->user_ptr[1];
7932 if (!info->attrs[NL80211_ATTR_PS_STATE])
7935 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7937 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7940 wdev = dev->ieee80211_ptr;
7942 if (!rdev->ops->set_power_mgmt)
7945 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7947 if (state == wdev->ps)
7950 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7956 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7959 enum nl80211_ps_state ps_state;
7960 struct wireless_dev *wdev;
7961 struct net_device *dev = info->user_ptr[1];
7962 struct sk_buff *msg;
7966 wdev = dev->ieee80211_ptr;
7968 if (!rdev->ops->set_power_mgmt)
7971 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7975 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7976 NL80211_CMD_GET_POWER_SAVE);
7983 ps_state = NL80211_PS_ENABLED;
7985 ps_state = NL80211_PS_DISABLED;
7987 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7988 goto nla_put_failure;
7990 genlmsg_end(msg, hdr);
7991 return genlmsg_reply(msg, info);
8000 static const struct nla_policy
8001 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8002 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8003 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8004 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8005 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8006 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8007 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8010 static int nl80211_set_cqm_txe(struct genl_info *info,
8011 u32 rate, u32 pkts, u32 intvl)
8013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8014 struct net_device *dev = info->user_ptr[1];
8015 struct wireless_dev *wdev = dev->ieee80211_ptr;
8017 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8020 if (!rdev->ops->set_cqm_txe_config)
8023 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8024 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8027 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8030 static int nl80211_set_cqm_rssi(struct genl_info *info,
8031 s32 threshold, u32 hysteresis)
8033 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8034 struct net_device *dev = info->user_ptr[1];
8035 struct wireless_dev *wdev = dev->ieee80211_ptr;
8040 /* disabling - hysteresis should also be zero then */
8044 if (!rdev->ops->set_cqm_rssi_config)
8047 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8048 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8051 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8054 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8056 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8060 cqm = info->attrs[NL80211_ATTR_CQM];
8064 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8065 nl80211_attr_cqm_policy);
8069 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8070 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8071 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8072 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8074 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8077 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8078 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8079 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8080 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8081 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8082 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8084 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8090 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8092 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8093 struct net_device *dev = info->user_ptr[1];
8094 struct mesh_config cfg;
8095 struct mesh_setup setup;
8098 /* start with default */
8099 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8100 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8102 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8103 /* and parse parameters if given */
8104 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8109 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8110 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8113 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8114 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8116 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8117 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8118 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8121 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8122 setup.beacon_interval =
8123 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8124 if (setup.beacon_interval < 10 ||
8125 setup.beacon_interval > 10000)
8129 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8131 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8132 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8136 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8137 /* parse additional setup parameters if given */
8138 err = nl80211_parse_mesh_setup(info, &setup);
8144 cfg.auto_open_plinks = false;
8146 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8147 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8151 /* cfg80211_join_mesh() will sort it out */
8152 setup.chandef.chan = NULL;
8155 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8156 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8158 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8159 struct ieee80211_supported_band *sband;
8161 if (!setup.chandef.chan)
8164 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8166 err = ieee80211_get_ratemask(sband, rates, n_rates,
8167 &setup.basic_rates);
8172 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8175 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8177 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8178 struct net_device *dev = info->user_ptr[1];
8180 return cfg80211_leave_mesh(rdev, dev);
8184 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8185 struct cfg80211_registered_device *rdev)
8187 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8188 struct nlattr *nl_pats, *nl_pat;
8191 if (!wowlan->n_patterns)
8194 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8198 for (i = 0; i < wowlan->n_patterns; i++) {
8199 nl_pat = nla_nest_start(msg, i + 1);
8202 pat_len = wowlan->patterns[i].pattern_len;
8203 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8204 wowlan->patterns[i].mask) ||
8205 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8206 wowlan->patterns[i].pattern) ||
8207 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8208 wowlan->patterns[i].pkt_offset))
8210 nla_nest_end(msg, nl_pat);
8212 nla_nest_end(msg, nl_pats);
8217 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8218 struct cfg80211_wowlan_tcp *tcp)
8220 struct nlattr *nl_tcp;
8225 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8229 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8230 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8231 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8232 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8233 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8234 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8235 tcp->payload_len, tcp->payload) ||
8236 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8237 tcp->data_interval) ||
8238 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8239 tcp->wake_len, tcp->wake_data) ||
8240 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8241 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8244 if (tcp->payload_seq.len &&
8245 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8246 sizeof(tcp->payload_seq), &tcp->payload_seq))
8249 if (tcp->payload_tok.len &&
8250 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8251 sizeof(tcp->payload_tok) + tcp->tokens_size,
8255 nla_nest_end(msg, nl_tcp);
8260 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8262 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8263 struct sk_buff *msg;
8265 u32 size = NLMSG_DEFAULT_SIZE;
8267 if (!rdev->wiphy.wowlan)
8270 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8271 /* adjust size to have room for all the data */
8272 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8273 rdev->wiphy.wowlan_config->tcp->payload_len +
8274 rdev->wiphy.wowlan_config->tcp->wake_len +
8275 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8278 msg = nlmsg_new(size, GFP_KERNEL);
8282 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8283 NL80211_CMD_GET_WOWLAN);
8285 goto nla_put_failure;
8287 if (rdev->wiphy.wowlan_config) {
8288 struct nlattr *nl_wowlan;
8290 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8292 goto nla_put_failure;
8294 if ((rdev->wiphy.wowlan_config->any &&
8295 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8296 (rdev->wiphy.wowlan_config->disconnect &&
8297 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8298 (rdev->wiphy.wowlan_config->magic_pkt &&
8299 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8300 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8301 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8302 (rdev->wiphy.wowlan_config->eap_identity_req &&
8303 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8304 (rdev->wiphy.wowlan_config->four_way_handshake &&
8305 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8306 (rdev->wiphy.wowlan_config->rfkill_release &&
8307 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8308 goto nla_put_failure;
8310 if (nl80211_send_wowlan_patterns(msg, rdev))
8311 goto nla_put_failure;
8313 if (nl80211_send_wowlan_tcp(msg,
8314 rdev->wiphy.wowlan_config->tcp))
8315 goto nla_put_failure;
8317 nla_nest_end(msg, nl_wowlan);
8320 genlmsg_end(msg, hdr);
8321 return genlmsg_reply(msg, info);
8328 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8329 struct nlattr *attr,
8330 struct cfg80211_wowlan *trig)
8332 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8333 struct cfg80211_wowlan_tcp *cfg;
8334 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8335 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8337 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8340 if (!rdev->wiphy.wowlan->tcp)
8343 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8344 nla_data(attr), nla_len(attr),
8345 nl80211_wowlan_tcp_policy);
8349 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8350 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8351 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8352 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8353 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8354 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8355 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8356 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8359 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8360 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8363 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8364 rdev->wiphy.wowlan->tcp->data_interval_max ||
8365 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8368 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8369 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8372 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8373 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8376 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8377 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8379 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8380 tokens_size = tokln - sizeof(*tok);
8382 if (!tok->len || tokens_size % tok->len)
8384 if (!rdev->wiphy.wowlan->tcp->tok)
8386 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8388 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8390 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8392 if (tok->offset + tok->len > data_size)
8396 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8397 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8398 if (!rdev->wiphy.wowlan->tcp->seq)
8400 if (seq->len == 0 || seq->len > 4)
8402 if (seq->len + seq->offset > data_size)
8406 size = sizeof(*cfg);
8408 size += wake_size + wake_mask_size;
8409 size += tokens_size;
8411 cfg = kzalloc(size, GFP_KERNEL);
8414 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8415 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8416 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8418 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8419 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8423 /* allocate a socket and port for it and use it */
8424 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8425 IPPROTO_TCP, &cfg->sock, 1);
8430 if (inet_csk_get_port(cfg->sock->sk, port)) {
8431 sock_release(cfg->sock);
8435 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8441 cfg->src_port = port;
8444 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8445 cfg->payload_len = data_size;
8446 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8447 memcpy((void *)cfg->payload,
8448 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8451 cfg->payload_seq = *seq;
8452 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8453 cfg->wake_len = wake_size;
8454 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8455 memcpy((void *)cfg->wake_data,
8456 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8458 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8459 data_size + wake_size;
8460 memcpy((void *)cfg->wake_mask,
8461 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8464 cfg->tokens_size = tokens_size;
8465 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8473 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8475 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8476 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8477 struct cfg80211_wowlan new_triggers = {};
8478 struct cfg80211_wowlan *ntrig;
8479 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8481 bool prev_enabled = rdev->wiphy.wowlan_config;
8486 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8487 cfg80211_rdev_free_wowlan(rdev);
8488 rdev->wiphy.wowlan_config = NULL;
8492 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8493 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8494 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8495 nl80211_wowlan_policy);
8499 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8500 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8502 new_triggers.any = true;
8505 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8506 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8508 new_triggers.disconnect = true;
8511 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8512 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8514 new_triggers.magic_pkt = true;
8517 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8520 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8521 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8523 new_triggers.gtk_rekey_failure = true;
8526 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8527 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8529 new_triggers.eap_identity_req = true;
8532 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8533 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8535 new_triggers.four_way_handshake = true;
8538 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8539 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8541 new_triggers.rfkill_release = true;
8544 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8547 int rem, pat_len, mask_len, pkt_offset;
8548 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8550 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8553 if (n_patterns > wowlan->n_patterns)
8556 new_triggers.patterns = kcalloc(n_patterns,
8557 sizeof(new_triggers.patterns[0]),
8559 if (!new_triggers.patterns)
8562 new_triggers.n_patterns = n_patterns;
8565 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8569 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8570 nla_len(pat), NULL);
8572 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8573 !pat_tb[NL80211_PKTPAT_PATTERN])
8575 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8576 mask_len = DIV_ROUND_UP(pat_len, 8);
8577 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8579 if (pat_len > wowlan->pattern_max_len ||
8580 pat_len < wowlan->pattern_min_len)
8583 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8586 pkt_offset = nla_get_u32(
8587 pat_tb[NL80211_PKTPAT_OFFSET]);
8588 if (pkt_offset > wowlan->max_pkt_offset)
8590 new_triggers.patterns[i].pkt_offset = pkt_offset;
8592 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8597 new_triggers.patterns[i].mask = mask_pat;
8598 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8600 mask_pat += mask_len;
8601 new_triggers.patterns[i].pattern = mask_pat;
8602 new_triggers.patterns[i].pattern_len = pat_len;
8604 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8610 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8611 err = nl80211_parse_wowlan_tcp(
8612 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8618 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8623 cfg80211_rdev_free_wowlan(rdev);
8624 rdev->wiphy.wowlan_config = ntrig;
8627 if (rdev->ops->set_wakeup &&
8628 prev_enabled != !!rdev->wiphy.wowlan_config)
8629 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8633 for (i = 0; i < new_triggers.n_patterns; i++)
8634 kfree(new_triggers.patterns[i].mask);
8635 kfree(new_triggers.patterns);
8636 if (new_triggers.tcp && new_triggers.tcp->sock)
8637 sock_release(new_triggers.tcp->sock);
8638 kfree(new_triggers.tcp);
8643 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8644 struct cfg80211_registered_device *rdev)
8646 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8648 struct cfg80211_coalesce_rules *rule;
8650 if (!rdev->coalesce->n_rules)
8653 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8657 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8658 nl_rule = nla_nest_start(msg, i + 1);
8662 rule = &rdev->coalesce->rules[i];
8663 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8667 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8671 nl_pats = nla_nest_start(msg,
8672 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8676 for (j = 0; j < rule->n_patterns; j++) {
8677 nl_pat = nla_nest_start(msg, j + 1);
8680 pat_len = rule->patterns[j].pattern_len;
8681 if (nla_put(msg, NL80211_PKTPAT_MASK,
8682 DIV_ROUND_UP(pat_len, 8),
8683 rule->patterns[j].mask) ||
8684 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8685 rule->patterns[j].pattern) ||
8686 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8687 rule->patterns[j].pkt_offset))
8689 nla_nest_end(msg, nl_pat);
8691 nla_nest_end(msg, nl_pats);
8692 nla_nest_end(msg, nl_rule);
8694 nla_nest_end(msg, nl_rules);
8699 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8702 struct sk_buff *msg;
8705 if (!rdev->wiphy.coalesce)
8708 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8712 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8713 NL80211_CMD_GET_COALESCE);
8715 goto nla_put_failure;
8717 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8718 goto nla_put_failure;
8720 genlmsg_end(msg, hdr);
8721 return genlmsg_reply(msg, info);
8728 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8730 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8732 struct cfg80211_coalesce_rules *rule;
8737 for (i = 0; i < coalesce->n_rules; i++) {
8738 rule = &coalesce->rules[i];
8739 for (j = 0; j < rule->n_patterns; j++)
8740 kfree(rule->patterns[j].mask);
8741 kfree(rule->patterns);
8743 kfree(coalesce->rules);
8745 rdev->coalesce = NULL;
8748 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8749 struct nlattr *rule,
8750 struct cfg80211_coalesce_rules *new_rule)
8753 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8754 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8755 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8756 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8758 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8759 nla_len(rule), nl80211_coalesce_policy);
8763 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8765 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8766 if (new_rule->delay > coalesce->max_delay)
8769 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8770 new_rule->condition =
8771 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8772 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8773 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8776 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8779 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8782 if (n_patterns > coalesce->n_patterns)
8785 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8787 if (!new_rule->patterns)
8790 new_rule->n_patterns = n_patterns;
8793 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8797 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8798 nla_len(pat), NULL);
8799 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8800 !pat_tb[NL80211_PKTPAT_PATTERN])
8802 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8803 mask_len = DIV_ROUND_UP(pat_len, 8);
8804 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8806 if (pat_len > coalesce->pattern_max_len ||
8807 pat_len < coalesce->pattern_min_len)
8810 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8813 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8814 if (pkt_offset > coalesce->max_pkt_offset)
8816 new_rule->patterns[i].pkt_offset = pkt_offset;
8818 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8822 new_rule->patterns[i].mask = mask_pat;
8823 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8826 mask_pat += mask_len;
8827 new_rule->patterns[i].pattern = mask_pat;
8828 new_rule->patterns[i].pattern_len = pat_len;
8829 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8837 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8840 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8841 struct cfg80211_coalesce new_coalesce = {};
8842 struct cfg80211_coalesce *n_coalesce;
8843 int err, rem_rule, n_rules = 0, i, j;
8844 struct nlattr *rule;
8845 struct cfg80211_coalesce_rules *tmp_rule;
8847 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8850 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8851 cfg80211_rdev_free_coalesce(rdev);
8852 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8856 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8859 if (n_rules > coalesce->n_rules)
8862 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8864 if (!new_coalesce.rules)
8867 new_coalesce.n_rules = n_rules;
8870 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8872 err = nl80211_parse_coalesce_rule(rdev, rule,
8873 &new_coalesce.rules[i]);
8880 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8884 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8889 cfg80211_rdev_free_coalesce(rdev);
8890 rdev->coalesce = n_coalesce;
8894 for (i = 0; i < new_coalesce.n_rules; i++) {
8895 tmp_rule = &new_coalesce.rules[i];
8896 for (j = 0; j < tmp_rule->n_patterns; j++)
8897 kfree(tmp_rule->patterns[j].mask);
8898 kfree(tmp_rule->patterns);
8900 kfree(new_coalesce.rules);
8905 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8908 struct net_device *dev = info->user_ptr[1];
8909 struct wireless_dev *wdev = dev->ieee80211_ptr;
8910 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8911 struct cfg80211_gtk_rekey_data rekey_data;
8914 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8917 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8918 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8919 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8920 nl80211_rekey_policy);
8924 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8926 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8928 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8931 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8933 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8935 memcpy(rekey_data.replay_ctr,
8936 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8937 NL80211_REPLAY_CTR_LEN);
8940 if (!wdev->current_bss) {
8945 if (!rdev->ops->set_rekey_data) {
8950 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8956 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8957 struct genl_info *info)
8959 struct net_device *dev = info->user_ptr[1];
8960 struct wireless_dev *wdev = dev->ieee80211_ptr;
8962 if (wdev->iftype != NL80211_IFTYPE_AP &&
8963 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8966 if (wdev->ap_unexpected_nlportid)
8969 wdev->ap_unexpected_nlportid = info->snd_portid;
8973 static int nl80211_probe_client(struct sk_buff *skb,
8974 struct genl_info *info)
8976 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8977 struct net_device *dev = info->user_ptr[1];
8978 struct wireless_dev *wdev = dev->ieee80211_ptr;
8979 struct sk_buff *msg;
8985 if (wdev->iftype != NL80211_IFTYPE_AP &&
8986 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8989 if (!info->attrs[NL80211_ATTR_MAC])
8992 if (!rdev->ops->probe_client)
8995 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8999 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9000 NL80211_CMD_PROBE_CLIENT);
9006 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9008 err = rdev_probe_client(rdev, dev, addr, &cookie);
9012 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9013 goto nla_put_failure;
9015 genlmsg_end(msg, hdr);
9017 return genlmsg_reply(msg, info);
9026 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9029 struct cfg80211_beacon_registration *reg, *nreg;
9032 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9035 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9039 /* First, check if already registered. */
9040 spin_lock_bh(&rdev->beacon_registrations_lock);
9041 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9042 if (reg->nlportid == info->snd_portid) {
9047 /* Add it to the list */
9048 nreg->nlportid = info->snd_portid;
9049 list_add(&nreg->list, &rdev->beacon_registrations);
9051 spin_unlock_bh(&rdev->beacon_registrations_lock);
9055 spin_unlock_bh(&rdev->beacon_registrations_lock);
9060 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9063 struct wireless_dev *wdev = info->user_ptr[1];
9066 if (!rdev->ops->start_p2p_device)
9069 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9072 if (wdev->p2p_started)
9075 if (rfkill_blocked(rdev->rfkill))
9078 err = rdev_start_p2p_device(rdev, wdev);
9082 wdev->p2p_started = true;
9088 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9091 struct wireless_dev *wdev = info->user_ptr[1];
9093 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9096 if (!rdev->ops->stop_p2p_device)
9099 cfg80211_stop_p2p_device(rdev, wdev);
9104 static int nl80211_get_protocol_features(struct sk_buff *skb,
9105 struct genl_info *info)
9108 struct sk_buff *msg;
9110 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9114 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9115 NL80211_CMD_GET_PROTOCOL_FEATURES);
9117 goto nla_put_failure;
9119 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9120 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9121 goto nla_put_failure;
9123 genlmsg_end(msg, hdr);
9124 return genlmsg_reply(msg, info);
9131 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9133 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9134 struct cfg80211_update_ft_ies_params ft_params;
9135 struct net_device *dev = info->user_ptr[1];
9137 if (!rdev->ops->update_ft_ies)
9140 if (!info->attrs[NL80211_ATTR_MDID] ||
9141 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9144 memset(&ft_params, 0, sizeof(ft_params));
9145 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9146 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9147 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9149 return rdev_update_ft_ies(rdev, dev, &ft_params);
9152 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9153 struct genl_info *info)
9155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9156 struct wireless_dev *wdev = info->user_ptr[1];
9157 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9161 if (!rdev->ops->crit_proto_start)
9164 if (WARN_ON(!rdev->ops->crit_proto_stop))
9167 if (rdev->crit_proto_nlportid)
9170 /* determine protocol if provided */
9171 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9172 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9174 if (proto >= NUM_NL80211_CRIT_PROTO)
9177 /* timeout must be provided */
9178 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9182 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9184 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9187 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9189 rdev->crit_proto_nlportid = info->snd_portid;
9194 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9195 struct genl_info *info)
9197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9198 struct wireless_dev *wdev = info->user_ptr[1];
9200 if (!rdev->ops->crit_proto_stop)
9203 if (rdev->crit_proto_nlportid) {
9204 rdev->crit_proto_nlportid = 0;
9205 rdev_crit_proto_stop(rdev, wdev);
9210 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9212 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9213 struct wireless_dev *wdev =
9214 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9218 if (!rdev->wiphy.vendor_commands)
9222 err = PTR_ERR(wdev);
9226 } else if (wdev->wiphy != &rdev->wiphy) {
9230 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9231 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9234 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9235 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9236 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9237 const struct wiphy_vendor_command *vcmd;
9241 vcmd = &rdev->wiphy.vendor_commands[i];
9243 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9246 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9247 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9250 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9254 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9256 !netif_running(wdev->netdev))
9258 if (!wdev->netdev && !wdev->p2p_started)
9265 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9266 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9267 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9270 rdev->cur_cmd_info = info;
9271 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9273 rdev->cur_cmd_info = NULL;
9280 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9281 enum nl80211_commands cmd,
9282 enum nl80211_attrs attr,
9285 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9287 if (WARN_ON(!rdev->cur_cmd_info))
9290 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9291 rdev->cur_cmd_info->snd_portid,
9292 rdev->cur_cmd_info->snd_seq,
9293 cmd, attr, NULL, GFP_KERNEL);
9295 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9297 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9299 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9300 void *hdr = ((void **)skb->cb)[1];
9301 struct nlattr *data = ((void **)skb->cb)[2];
9303 if (WARN_ON(!rdev->cur_cmd_info)) {
9308 nla_nest_end(skb, data);
9309 genlmsg_end(skb, hdr);
9310 return genlmsg_reply(skb, rdev->cur_cmd_info);
9312 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9315 static int nl80211_set_qos_map(struct sk_buff *skb,
9316 struct genl_info *info)
9318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9319 struct cfg80211_qos_map *qos_map = NULL;
9320 struct net_device *dev = info->user_ptr[1];
9321 u8 *pos, len, num_des, des_len, des;
9324 if (!rdev->ops->set_qos_map)
9327 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9328 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9329 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9331 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9332 len > IEEE80211_QOS_MAP_LEN_MAX)
9335 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9339 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9342 sizeof(struct cfg80211_dscp_exception);
9343 memcpy(qos_map->dscp_exception, pos, des_len);
9344 qos_map->num_des = num_des;
9345 for (des = 0; des < num_des; des++) {
9346 if (qos_map->dscp_exception[des].up > 7) {
9353 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9356 wdev_lock(dev->ieee80211_ptr);
9357 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9359 ret = rdev_set_qos_map(rdev, dev, qos_map);
9360 wdev_unlock(dev->ieee80211_ptr);
9366 #define NL80211_FLAG_NEED_WIPHY 0x01
9367 #define NL80211_FLAG_NEED_NETDEV 0x02
9368 #define NL80211_FLAG_NEED_RTNL 0x04
9369 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9370 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9371 NL80211_FLAG_CHECK_NETDEV_UP)
9372 #define NL80211_FLAG_NEED_WDEV 0x10
9373 /* If a netdev is associated, it must be UP, P2P must be started */
9374 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9375 NL80211_FLAG_CHECK_NETDEV_UP)
9377 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9378 struct genl_info *info)
9380 struct cfg80211_registered_device *rdev;
9381 struct wireless_dev *wdev;
9382 struct net_device *dev;
9383 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9388 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9389 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9393 return PTR_ERR(rdev);
9395 info->user_ptr[0] = rdev;
9396 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9397 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9400 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9405 return PTR_ERR(wdev);
9409 rdev = wiphy_to_rdev(wdev->wiphy);
9411 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9418 info->user_ptr[1] = dev;
9420 info->user_ptr[1] = wdev;
9424 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9425 !netif_running(dev)) {
9432 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9433 if (!wdev->p2p_started) {
9440 info->user_ptr[0] = rdev;
9446 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
9447 struct genl_info *info)
9449 if (info->user_ptr[1]) {
9450 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9451 struct wireless_dev *wdev = info->user_ptr[1];
9454 dev_put(wdev->netdev);
9456 dev_put(info->user_ptr[1]);
9459 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9463 static const struct genl_ops nl80211_ops[] = {
9465 .cmd = NL80211_CMD_GET_WIPHY,
9466 .doit = nl80211_get_wiphy,
9467 .dumpit = nl80211_dump_wiphy,
9468 .done = nl80211_dump_wiphy_done,
9469 .policy = nl80211_policy,
9470 /* can be retrieved by unprivileged users */
9471 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9472 NL80211_FLAG_NEED_RTNL,
9475 .cmd = NL80211_CMD_SET_WIPHY,
9476 .doit = nl80211_set_wiphy,
9477 .policy = nl80211_policy,
9478 .flags = GENL_ADMIN_PERM,
9479 .internal_flags = NL80211_FLAG_NEED_RTNL,
9482 .cmd = NL80211_CMD_GET_INTERFACE,
9483 .doit = nl80211_get_interface,
9484 .dumpit = nl80211_dump_interface,
9485 .policy = nl80211_policy,
9486 /* can be retrieved by unprivileged users */
9487 .internal_flags = NL80211_FLAG_NEED_WDEV |
9488 NL80211_FLAG_NEED_RTNL,
9491 .cmd = NL80211_CMD_SET_INTERFACE,
9492 .doit = nl80211_set_interface,
9493 .policy = nl80211_policy,
9494 .flags = GENL_ADMIN_PERM,
9495 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9496 NL80211_FLAG_NEED_RTNL,
9499 .cmd = NL80211_CMD_NEW_INTERFACE,
9500 .doit = nl80211_new_interface,
9501 .policy = nl80211_policy,
9502 .flags = GENL_ADMIN_PERM,
9503 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9504 NL80211_FLAG_NEED_RTNL,
9507 .cmd = NL80211_CMD_DEL_INTERFACE,
9508 .doit = nl80211_del_interface,
9509 .policy = nl80211_policy,
9510 .flags = GENL_ADMIN_PERM,
9511 .internal_flags = NL80211_FLAG_NEED_WDEV |
9512 NL80211_FLAG_NEED_RTNL,
9515 .cmd = NL80211_CMD_GET_KEY,
9516 .doit = nl80211_get_key,
9517 .policy = nl80211_policy,
9518 .flags = GENL_ADMIN_PERM,
9519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9520 NL80211_FLAG_NEED_RTNL,
9523 .cmd = NL80211_CMD_SET_KEY,
9524 .doit = nl80211_set_key,
9525 .policy = nl80211_policy,
9526 .flags = GENL_ADMIN_PERM,
9527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9528 NL80211_FLAG_NEED_RTNL,
9531 .cmd = NL80211_CMD_NEW_KEY,
9532 .doit = nl80211_new_key,
9533 .policy = nl80211_policy,
9534 .flags = GENL_ADMIN_PERM,
9535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9536 NL80211_FLAG_NEED_RTNL,
9539 .cmd = NL80211_CMD_DEL_KEY,
9540 .doit = nl80211_del_key,
9541 .policy = nl80211_policy,
9542 .flags = GENL_ADMIN_PERM,
9543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9544 NL80211_FLAG_NEED_RTNL,
9547 .cmd = NL80211_CMD_SET_BEACON,
9548 .policy = nl80211_policy,
9549 .flags = GENL_ADMIN_PERM,
9550 .doit = nl80211_set_beacon,
9551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9552 NL80211_FLAG_NEED_RTNL,
9555 .cmd = NL80211_CMD_START_AP,
9556 .policy = nl80211_policy,
9557 .flags = GENL_ADMIN_PERM,
9558 .doit = nl80211_start_ap,
9559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9560 NL80211_FLAG_NEED_RTNL,
9563 .cmd = NL80211_CMD_STOP_AP,
9564 .policy = nl80211_policy,
9565 .flags = GENL_ADMIN_PERM,
9566 .doit = nl80211_stop_ap,
9567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9568 NL80211_FLAG_NEED_RTNL,
9571 .cmd = NL80211_CMD_GET_STATION,
9572 .doit = nl80211_get_station,
9573 .dumpit = nl80211_dump_station,
9574 .policy = nl80211_policy,
9575 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9576 NL80211_FLAG_NEED_RTNL,
9579 .cmd = NL80211_CMD_SET_STATION,
9580 .doit = nl80211_set_station,
9581 .policy = nl80211_policy,
9582 .flags = GENL_ADMIN_PERM,
9583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9584 NL80211_FLAG_NEED_RTNL,
9587 .cmd = NL80211_CMD_NEW_STATION,
9588 .doit = nl80211_new_station,
9589 .policy = nl80211_policy,
9590 .flags = GENL_ADMIN_PERM,
9591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9592 NL80211_FLAG_NEED_RTNL,
9595 .cmd = NL80211_CMD_DEL_STATION,
9596 .doit = nl80211_del_station,
9597 .policy = nl80211_policy,
9598 .flags = GENL_ADMIN_PERM,
9599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9600 NL80211_FLAG_NEED_RTNL,
9603 .cmd = NL80211_CMD_GET_MPATH,
9604 .doit = nl80211_get_mpath,
9605 .dumpit = nl80211_dump_mpath,
9606 .policy = nl80211_policy,
9607 .flags = GENL_ADMIN_PERM,
9608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9609 NL80211_FLAG_NEED_RTNL,
9612 .cmd = NL80211_CMD_SET_MPATH,
9613 .doit = nl80211_set_mpath,
9614 .policy = nl80211_policy,
9615 .flags = GENL_ADMIN_PERM,
9616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9617 NL80211_FLAG_NEED_RTNL,
9620 .cmd = NL80211_CMD_NEW_MPATH,
9621 .doit = nl80211_new_mpath,
9622 .policy = nl80211_policy,
9623 .flags = GENL_ADMIN_PERM,
9624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9625 NL80211_FLAG_NEED_RTNL,
9628 .cmd = NL80211_CMD_DEL_MPATH,
9629 .doit = nl80211_del_mpath,
9630 .policy = nl80211_policy,
9631 .flags = GENL_ADMIN_PERM,
9632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9633 NL80211_FLAG_NEED_RTNL,
9636 .cmd = NL80211_CMD_SET_BSS,
9637 .doit = nl80211_set_bss,
9638 .policy = nl80211_policy,
9639 .flags = GENL_ADMIN_PERM,
9640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9641 NL80211_FLAG_NEED_RTNL,
9644 .cmd = NL80211_CMD_GET_REG,
9645 .doit = nl80211_get_reg,
9646 .policy = nl80211_policy,
9647 .internal_flags = NL80211_FLAG_NEED_RTNL,
9648 /* can be retrieved by unprivileged users */
9651 .cmd = NL80211_CMD_SET_REG,
9652 .doit = nl80211_set_reg,
9653 .policy = nl80211_policy,
9654 .flags = GENL_ADMIN_PERM,
9655 .internal_flags = NL80211_FLAG_NEED_RTNL,
9658 .cmd = NL80211_CMD_REQ_SET_REG,
9659 .doit = nl80211_req_set_reg,
9660 .policy = nl80211_policy,
9661 .flags = GENL_ADMIN_PERM,
9664 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9665 .doit = nl80211_get_mesh_config,
9666 .policy = nl80211_policy,
9667 /* can be retrieved by unprivileged users */
9668 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9669 NL80211_FLAG_NEED_RTNL,
9672 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9673 .doit = nl80211_update_mesh_config,
9674 .policy = nl80211_policy,
9675 .flags = GENL_ADMIN_PERM,
9676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9677 NL80211_FLAG_NEED_RTNL,
9680 .cmd = NL80211_CMD_TRIGGER_SCAN,
9681 .doit = nl80211_trigger_scan,
9682 .policy = nl80211_policy,
9683 .flags = GENL_ADMIN_PERM,
9684 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9685 NL80211_FLAG_NEED_RTNL,
9688 .cmd = NL80211_CMD_GET_SCAN,
9689 .policy = nl80211_policy,
9690 .dumpit = nl80211_dump_scan,
9693 .cmd = NL80211_CMD_START_SCHED_SCAN,
9694 .doit = nl80211_start_sched_scan,
9695 .policy = nl80211_policy,
9696 .flags = GENL_ADMIN_PERM,
9697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9698 NL80211_FLAG_NEED_RTNL,
9701 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9702 .doit = nl80211_stop_sched_scan,
9703 .policy = nl80211_policy,
9704 .flags = GENL_ADMIN_PERM,
9705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9706 NL80211_FLAG_NEED_RTNL,
9709 .cmd = NL80211_CMD_AUTHENTICATE,
9710 .doit = nl80211_authenticate,
9711 .policy = nl80211_policy,
9712 .flags = GENL_ADMIN_PERM,
9713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9714 NL80211_FLAG_NEED_RTNL,
9717 .cmd = NL80211_CMD_ASSOCIATE,
9718 .doit = nl80211_associate,
9719 .policy = nl80211_policy,
9720 .flags = GENL_ADMIN_PERM,
9721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9722 NL80211_FLAG_NEED_RTNL,
9725 .cmd = NL80211_CMD_DEAUTHENTICATE,
9726 .doit = nl80211_deauthenticate,
9727 .policy = nl80211_policy,
9728 .flags = GENL_ADMIN_PERM,
9729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9730 NL80211_FLAG_NEED_RTNL,
9733 .cmd = NL80211_CMD_DISASSOCIATE,
9734 .doit = nl80211_disassociate,
9735 .policy = nl80211_policy,
9736 .flags = GENL_ADMIN_PERM,
9737 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9738 NL80211_FLAG_NEED_RTNL,
9741 .cmd = NL80211_CMD_JOIN_IBSS,
9742 .doit = nl80211_join_ibss,
9743 .policy = nl80211_policy,
9744 .flags = GENL_ADMIN_PERM,
9745 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9746 NL80211_FLAG_NEED_RTNL,
9749 .cmd = NL80211_CMD_LEAVE_IBSS,
9750 .doit = nl80211_leave_ibss,
9751 .policy = nl80211_policy,
9752 .flags = GENL_ADMIN_PERM,
9753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9754 NL80211_FLAG_NEED_RTNL,
9756 #ifdef CONFIG_NL80211_TESTMODE
9758 .cmd = NL80211_CMD_TESTMODE,
9759 .doit = nl80211_testmode_do,
9760 .dumpit = nl80211_testmode_dump,
9761 .policy = nl80211_policy,
9762 .flags = GENL_ADMIN_PERM,
9763 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9764 NL80211_FLAG_NEED_RTNL,
9768 .cmd = NL80211_CMD_CONNECT,
9769 .doit = nl80211_connect,
9770 .policy = nl80211_policy,
9771 .flags = GENL_ADMIN_PERM,
9772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9773 NL80211_FLAG_NEED_RTNL,
9776 .cmd = NL80211_CMD_DISCONNECT,
9777 .doit = nl80211_disconnect,
9778 .policy = nl80211_policy,
9779 .flags = GENL_ADMIN_PERM,
9780 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9781 NL80211_FLAG_NEED_RTNL,
9784 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9785 .doit = nl80211_wiphy_netns,
9786 .policy = nl80211_policy,
9787 .flags = GENL_ADMIN_PERM,
9788 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9789 NL80211_FLAG_NEED_RTNL,
9792 .cmd = NL80211_CMD_GET_SURVEY,
9793 .policy = nl80211_policy,
9794 .dumpit = nl80211_dump_survey,
9797 .cmd = NL80211_CMD_SET_PMKSA,
9798 .doit = nl80211_setdel_pmksa,
9799 .policy = nl80211_policy,
9800 .flags = GENL_ADMIN_PERM,
9801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9802 NL80211_FLAG_NEED_RTNL,
9805 .cmd = NL80211_CMD_DEL_PMKSA,
9806 .doit = nl80211_setdel_pmksa,
9807 .policy = nl80211_policy,
9808 .flags = GENL_ADMIN_PERM,
9809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9810 NL80211_FLAG_NEED_RTNL,
9813 .cmd = NL80211_CMD_FLUSH_PMKSA,
9814 .doit = nl80211_flush_pmksa,
9815 .policy = nl80211_policy,
9816 .flags = GENL_ADMIN_PERM,
9817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9818 NL80211_FLAG_NEED_RTNL,
9821 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9822 .doit = nl80211_remain_on_channel,
9823 .policy = nl80211_policy,
9824 .flags = GENL_ADMIN_PERM,
9825 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9826 NL80211_FLAG_NEED_RTNL,
9829 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9830 .doit = nl80211_cancel_remain_on_channel,
9831 .policy = nl80211_policy,
9832 .flags = GENL_ADMIN_PERM,
9833 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9834 NL80211_FLAG_NEED_RTNL,
9837 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9838 .doit = nl80211_set_tx_bitrate_mask,
9839 .policy = nl80211_policy,
9840 .flags = GENL_ADMIN_PERM,
9841 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9842 NL80211_FLAG_NEED_RTNL,
9845 .cmd = NL80211_CMD_REGISTER_FRAME,
9846 .doit = nl80211_register_mgmt,
9847 .policy = nl80211_policy,
9848 .flags = GENL_ADMIN_PERM,
9849 .internal_flags = NL80211_FLAG_NEED_WDEV |
9850 NL80211_FLAG_NEED_RTNL,
9853 .cmd = NL80211_CMD_FRAME,
9854 .doit = nl80211_tx_mgmt,
9855 .policy = nl80211_policy,
9856 .flags = GENL_ADMIN_PERM,
9857 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9858 NL80211_FLAG_NEED_RTNL,
9861 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9862 .doit = nl80211_tx_mgmt_cancel_wait,
9863 .policy = nl80211_policy,
9864 .flags = GENL_ADMIN_PERM,
9865 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9866 NL80211_FLAG_NEED_RTNL,
9869 .cmd = NL80211_CMD_SET_POWER_SAVE,
9870 .doit = nl80211_set_power_save,
9871 .policy = nl80211_policy,
9872 .flags = GENL_ADMIN_PERM,
9873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9874 NL80211_FLAG_NEED_RTNL,
9877 .cmd = NL80211_CMD_GET_POWER_SAVE,
9878 .doit = nl80211_get_power_save,
9879 .policy = nl80211_policy,
9880 /* can be retrieved by unprivileged users */
9881 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9882 NL80211_FLAG_NEED_RTNL,
9885 .cmd = NL80211_CMD_SET_CQM,
9886 .doit = nl80211_set_cqm,
9887 .policy = nl80211_policy,
9888 .flags = GENL_ADMIN_PERM,
9889 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9890 NL80211_FLAG_NEED_RTNL,
9893 .cmd = NL80211_CMD_SET_CHANNEL,
9894 .doit = nl80211_set_channel,
9895 .policy = nl80211_policy,
9896 .flags = GENL_ADMIN_PERM,
9897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9898 NL80211_FLAG_NEED_RTNL,
9901 .cmd = NL80211_CMD_SET_WDS_PEER,
9902 .doit = nl80211_set_wds_peer,
9903 .policy = nl80211_policy,
9904 .flags = GENL_ADMIN_PERM,
9905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9906 NL80211_FLAG_NEED_RTNL,
9909 .cmd = NL80211_CMD_JOIN_MESH,
9910 .doit = nl80211_join_mesh,
9911 .policy = nl80211_policy,
9912 .flags = GENL_ADMIN_PERM,
9913 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9914 NL80211_FLAG_NEED_RTNL,
9917 .cmd = NL80211_CMD_LEAVE_MESH,
9918 .doit = nl80211_leave_mesh,
9919 .policy = nl80211_policy,
9920 .flags = GENL_ADMIN_PERM,
9921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9922 NL80211_FLAG_NEED_RTNL,
9926 .cmd = NL80211_CMD_GET_WOWLAN,
9927 .doit = nl80211_get_wowlan,
9928 .policy = nl80211_policy,
9929 /* can be retrieved by unprivileged users */
9930 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9931 NL80211_FLAG_NEED_RTNL,
9934 .cmd = NL80211_CMD_SET_WOWLAN,
9935 .doit = nl80211_set_wowlan,
9936 .policy = nl80211_policy,
9937 .flags = GENL_ADMIN_PERM,
9938 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9939 NL80211_FLAG_NEED_RTNL,
9943 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9944 .doit = nl80211_set_rekey_data,
9945 .policy = nl80211_policy,
9946 .flags = GENL_ADMIN_PERM,
9947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9948 NL80211_FLAG_NEED_RTNL,
9951 .cmd = NL80211_CMD_TDLS_MGMT,
9952 .doit = nl80211_tdls_mgmt,
9953 .policy = nl80211_policy,
9954 .flags = GENL_ADMIN_PERM,
9955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9956 NL80211_FLAG_NEED_RTNL,
9959 .cmd = NL80211_CMD_TDLS_OPER,
9960 .doit = nl80211_tdls_oper,
9961 .policy = nl80211_policy,
9962 .flags = GENL_ADMIN_PERM,
9963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9964 NL80211_FLAG_NEED_RTNL,
9967 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9968 .doit = nl80211_register_unexpected_frame,
9969 .policy = nl80211_policy,
9970 .flags = GENL_ADMIN_PERM,
9971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9972 NL80211_FLAG_NEED_RTNL,
9975 .cmd = NL80211_CMD_PROBE_CLIENT,
9976 .doit = nl80211_probe_client,
9977 .policy = nl80211_policy,
9978 .flags = GENL_ADMIN_PERM,
9979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9980 NL80211_FLAG_NEED_RTNL,
9983 .cmd = NL80211_CMD_REGISTER_BEACONS,
9984 .doit = nl80211_register_beacons,
9985 .policy = nl80211_policy,
9986 .flags = GENL_ADMIN_PERM,
9987 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9988 NL80211_FLAG_NEED_RTNL,
9991 .cmd = NL80211_CMD_SET_NOACK_MAP,
9992 .doit = nl80211_set_noack_map,
9993 .policy = nl80211_policy,
9994 .flags = GENL_ADMIN_PERM,
9995 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9996 NL80211_FLAG_NEED_RTNL,
9999 .cmd = NL80211_CMD_START_P2P_DEVICE,
10000 .doit = nl80211_start_p2p_device,
10001 .policy = nl80211_policy,
10002 .flags = GENL_ADMIN_PERM,
10003 .internal_flags = NL80211_FLAG_NEED_WDEV |
10004 NL80211_FLAG_NEED_RTNL,
10007 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10008 .doit = nl80211_stop_p2p_device,
10009 .policy = nl80211_policy,
10010 .flags = GENL_ADMIN_PERM,
10011 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10012 NL80211_FLAG_NEED_RTNL,
10015 .cmd = NL80211_CMD_SET_MCAST_RATE,
10016 .doit = nl80211_set_mcast_rate,
10017 .policy = nl80211_policy,
10018 .flags = GENL_ADMIN_PERM,
10019 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10020 NL80211_FLAG_NEED_RTNL,
10023 .cmd = NL80211_CMD_SET_MAC_ACL,
10024 .doit = nl80211_set_mac_acl,
10025 .policy = nl80211_policy,
10026 .flags = GENL_ADMIN_PERM,
10027 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10028 NL80211_FLAG_NEED_RTNL,
10031 .cmd = NL80211_CMD_RADAR_DETECT,
10032 .doit = nl80211_start_radar_detection,
10033 .policy = nl80211_policy,
10034 .flags = GENL_ADMIN_PERM,
10035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10036 NL80211_FLAG_NEED_RTNL,
10039 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10040 .doit = nl80211_get_protocol_features,
10041 .policy = nl80211_policy,
10044 .cmd = NL80211_CMD_UPDATE_FT_IES,
10045 .doit = nl80211_update_ft_ies,
10046 .policy = nl80211_policy,
10047 .flags = GENL_ADMIN_PERM,
10048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10049 NL80211_FLAG_NEED_RTNL,
10052 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10053 .doit = nl80211_crit_protocol_start,
10054 .policy = nl80211_policy,
10055 .flags = GENL_ADMIN_PERM,
10056 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10057 NL80211_FLAG_NEED_RTNL,
10060 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10061 .doit = nl80211_crit_protocol_stop,
10062 .policy = nl80211_policy,
10063 .flags = GENL_ADMIN_PERM,
10064 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10065 NL80211_FLAG_NEED_RTNL,
10068 .cmd = NL80211_CMD_GET_COALESCE,
10069 .doit = nl80211_get_coalesce,
10070 .policy = nl80211_policy,
10071 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10072 NL80211_FLAG_NEED_RTNL,
10075 .cmd = NL80211_CMD_SET_COALESCE,
10076 .doit = nl80211_set_coalesce,
10077 .policy = nl80211_policy,
10078 .flags = GENL_ADMIN_PERM,
10079 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10080 NL80211_FLAG_NEED_RTNL,
10083 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10084 .doit = nl80211_channel_switch,
10085 .policy = nl80211_policy,
10086 .flags = GENL_ADMIN_PERM,
10087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10088 NL80211_FLAG_NEED_RTNL,
10091 .cmd = NL80211_CMD_VENDOR,
10092 .doit = nl80211_vendor_cmd,
10093 .policy = nl80211_policy,
10094 .flags = GENL_ADMIN_PERM,
10095 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10096 NL80211_FLAG_NEED_RTNL,
10099 .cmd = NL80211_CMD_SET_QOS_MAP,
10100 .doit = nl80211_set_qos_map,
10101 .policy = nl80211_policy,
10102 .flags = GENL_ADMIN_PERM,
10103 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10104 NL80211_FLAG_NEED_RTNL,
10108 /* notification functions */
10110 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10111 enum nl80211_commands cmd)
10113 struct sk_buff *msg;
10114 struct nl80211_dump_wiphy_state state = {};
10116 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10117 cmd != NL80211_CMD_DEL_WIPHY);
10119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10123 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
10128 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10129 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10132 static int nl80211_add_scan_req(struct sk_buff *msg,
10133 struct cfg80211_registered_device *rdev)
10135 struct cfg80211_scan_request *req = rdev->scan_req;
10136 struct nlattr *nest;
10142 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10144 goto nla_put_failure;
10145 for (i = 0; i < req->n_ssids; i++) {
10146 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10147 goto nla_put_failure;
10149 nla_nest_end(msg, nest);
10151 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10153 goto nla_put_failure;
10154 for (i = 0; i < req->n_channels; i++) {
10155 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10156 goto nla_put_failure;
10158 nla_nest_end(msg, nest);
10161 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10162 goto nla_put_failure;
10165 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10166 goto nla_put_failure;
10173 static int nl80211_send_scan_msg(struct sk_buff *msg,
10174 struct cfg80211_registered_device *rdev,
10175 struct wireless_dev *wdev,
10176 u32 portid, u32 seq, int flags,
10181 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10185 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10186 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10187 wdev->netdev->ifindex)) ||
10188 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10189 goto nla_put_failure;
10191 /* ignore errors and send incomplete event anyway */
10192 nl80211_add_scan_req(msg, rdev);
10194 return genlmsg_end(msg, hdr);
10197 genlmsg_cancel(msg, hdr);
10202 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10203 struct cfg80211_registered_device *rdev,
10204 struct net_device *netdev,
10205 u32 portid, u32 seq, int flags, u32 cmd)
10209 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10214 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10215 goto nla_put_failure;
10217 return genlmsg_end(msg, hdr);
10220 genlmsg_cancel(msg, hdr);
10224 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10225 struct wireless_dev *wdev)
10227 struct sk_buff *msg;
10229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10233 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10234 NL80211_CMD_TRIGGER_SCAN) < 0) {
10239 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10240 NL80211_MCGRP_SCAN, GFP_KERNEL);
10243 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10244 struct wireless_dev *wdev, bool aborted)
10246 struct sk_buff *msg;
10248 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10252 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10253 aborted ? NL80211_CMD_SCAN_ABORTED :
10254 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10262 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10263 struct sk_buff *msg)
10268 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10269 NL80211_MCGRP_SCAN, GFP_KERNEL);
10272 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10273 struct net_device *netdev)
10275 struct sk_buff *msg;
10277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10281 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10282 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10287 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10288 NL80211_MCGRP_SCAN, GFP_KERNEL);
10291 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10292 struct net_device *netdev, u32 cmd)
10294 struct sk_buff *msg;
10296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10300 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10305 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10306 NL80211_MCGRP_SCAN, GFP_KERNEL);
10310 * This can happen on global regulatory changes or device specific settings
10311 * based on custom world regulatory domains.
10313 void nl80211_send_reg_change_event(struct regulatory_request *request)
10315 struct sk_buff *msg;
10318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10322 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10328 /* Userspace can always count this one always being set */
10329 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10330 goto nla_put_failure;
10332 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10333 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10334 NL80211_REGDOM_TYPE_WORLD))
10335 goto nla_put_failure;
10336 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10337 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10338 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10339 goto nla_put_failure;
10340 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10341 request->intersect) {
10342 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10343 NL80211_REGDOM_TYPE_INTERSECTION))
10344 goto nla_put_failure;
10346 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10347 NL80211_REGDOM_TYPE_COUNTRY) ||
10348 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10350 goto nla_put_failure;
10353 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10354 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10355 goto nla_put_failure;
10357 genlmsg_end(msg, hdr);
10360 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10361 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10367 genlmsg_cancel(msg, hdr);
10371 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10372 struct net_device *netdev,
10373 const u8 *buf, size_t len,
10374 enum nl80211_commands cmd, gfp_t gfp)
10376 struct sk_buff *msg;
10379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10383 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10390 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10391 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10392 goto nla_put_failure;
10394 genlmsg_end(msg, hdr);
10396 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10397 NL80211_MCGRP_MLME, gfp);
10401 genlmsg_cancel(msg, hdr);
10405 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10406 struct net_device *netdev, const u8 *buf,
10407 size_t len, gfp_t gfp)
10409 nl80211_send_mlme_event(rdev, netdev, buf, len,
10410 NL80211_CMD_AUTHENTICATE, gfp);
10413 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10414 struct net_device *netdev, const u8 *buf,
10415 size_t len, gfp_t gfp)
10417 nl80211_send_mlme_event(rdev, netdev, buf, len,
10418 NL80211_CMD_ASSOCIATE, gfp);
10421 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10422 struct net_device *netdev, const u8 *buf,
10423 size_t len, gfp_t gfp)
10425 nl80211_send_mlme_event(rdev, netdev, buf, len,
10426 NL80211_CMD_DEAUTHENTICATE, gfp);
10429 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10430 struct net_device *netdev, const u8 *buf,
10431 size_t len, gfp_t gfp)
10433 nl80211_send_mlme_event(rdev, netdev, buf, len,
10434 NL80211_CMD_DISASSOCIATE, gfp);
10437 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10440 struct wireless_dev *wdev = dev->ieee80211_ptr;
10441 struct wiphy *wiphy = wdev->wiphy;
10442 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10443 const struct ieee80211_mgmt *mgmt = (void *)buf;
10446 if (WARN_ON(len < 2))
10449 if (ieee80211_is_deauth(mgmt->frame_control))
10450 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10452 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10454 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10455 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
10457 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10459 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10460 struct net_device *netdev, int cmd,
10461 const u8 *addr, gfp_t gfp)
10463 struct sk_buff *msg;
10466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10470 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10476 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10478 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10479 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10480 goto nla_put_failure;
10482 genlmsg_end(msg, hdr);
10484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10485 NL80211_MCGRP_MLME, gfp);
10489 genlmsg_cancel(msg, hdr);
10493 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10494 struct net_device *netdev, const u8 *addr,
10497 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10501 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10502 struct net_device *netdev, const u8 *addr,
10505 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10509 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10510 struct net_device *netdev, const u8 *bssid,
10511 const u8 *req_ie, size_t req_ie_len,
10512 const u8 *resp_ie, size_t resp_ie_len,
10513 u16 status, gfp_t gfp)
10515 struct sk_buff *msg;
10518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10522 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10529 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10530 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10531 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10533 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10535 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10536 goto nla_put_failure;
10538 genlmsg_end(msg, hdr);
10540 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10541 NL80211_MCGRP_MLME, gfp);
10545 genlmsg_cancel(msg, hdr);
10550 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10551 struct net_device *netdev, const u8 *bssid,
10552 const u8 *req_ie, size_t req_ie_len,
10553 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10555 struct sk_buff *msg;
10558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10569 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10570 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10572 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10574 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10575 goto nla_put_failure;
10577 genlmsg_end(msg, hdr);
10579 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10580 NL80211_MCGRP_MLME, gfp);
10584 genlmsg_cancel(msg, hdr);
10589 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10590 struct net_device *netdev, u16 reason,
10591 const u8 *ie, size_t ie_len, bool from_ap)
10593 struct sk_buff *msg;
10596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10606 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10607 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10608 (from_ap && reason &&
10609 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10611 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10612 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10613 goto nla_put_failure;
10615 genlmsg_end(msg, hdr);
10617 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10618 NL80211_MCGRP_MLME, GFP_KERNEL);
10622 genlmsg_cancel(msg, hdr);
10627 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10628 struct net_device *netdev, const u8 *bssid,
10631 struct sk_buff *msg;
10634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10638 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10644 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10645 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10646 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10647 goto nla_put_failure;
10649 genlmsg_end(msg, hdr);
10651 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10652 NL80211_MCGRP_MLME, gfp);
10656 genlmsg_cancel(msg, hdr);
10660 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10661 const u8* ie, u8 ie_len, gfp_t gfp)
10663 struct wireless_dev *wdev = dev->ieee80211_ptr;
10664 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
10665 struct sk_buff *msg;
10668 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10671 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10677 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10683 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10685 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10687 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10688 goto nla_put_failure;
10690 genlmsg_end(msg, hdr);
10692 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10693 NL80211_MCGRP_MLME, gfp);
10697 genlmsg_cancel(msg, hdr);
10700 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10702 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10703 struct net_device *netdev, const u8 *addr,
10704 enum nl80211_key_type key_type, int key_id,
10705 const u8 *tsc, gfp_t gfp)
10707 struct sk_buff *msg;
10710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10722 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10723 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10725 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10726 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10727 goto nla_put_failure;
10729 genlmsg_end(msg, hdr);
10731 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10732 NL80211_MCGRP_MLME, gfp);
10736 genlmsg_cancel(msg, hdr);
10740 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10741 struct ieee80211_channel *channel_before,
10742 struct ieee80211_channel *channel_after)
10744 struct sk_buff *msg;
10746 struct nlattr *nl_freq;
10748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10759 * Since we are applying the beacon hint to a wiphy we know its
10760 * wiphy_idx is valid
10762 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10763 goto nla_put_failure;
10766 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10768 goto nla_put_failure;
10769 if (nl80211_msg_put_channel(msg, channel_before, false))
10770 goto nla_put_failure;
10771 nla_nest_end(msg, nl_freq);
10774 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10776 goto nla_put_failure;
10777 if (nl80211_msg_put_channel(msg, channel_after, false))
10778 goto nla_put_failure;
10779 nla_nest_end(msg, nl_freq);
10781 genlmsg_end(msg, hdr);
10784 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10785 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10791 genlmsg_cancel(msg, hdr);
10795 static void nl80211_send_remain_on_chan_event(
10796 int cmd, struct cfg80211_registered_device *rdev,
10797 struct wireless_dev *wdev, u64 cookie,
10798 struct ieee80211_channel *chan,
10799 unsigned int duration, gfp_t gfp)
10801 struct sk_buff *msg;
10804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10808 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10814 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10815 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10816 wdev->netdev->ifindex)) ||
10817 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10818 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
10819 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10820 NL80211_CHAN_NO_HT) ||
10821 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10822 goto nla_put_failure;
10824 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10825 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10826 goto nla_put_failure;
10828 genlmsg_end(msg, hdr);
10830 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10831 NL80211_MCGRP_MLME, gfp);
10835 genlmsg_cancel(msg, hdr);
10839 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10840 struct ieee80211_channel *chan,
10841 unsigned int duration, gfp_t gfp)
10843 struct wiphy *wiphy = wdev->wiphy;
10844 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10846 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
10847 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
10848 rdev, wdev, cookie, chan,
10851 EXPORT_SYMBOL(cfg80211_ready_on_channel);
10853 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10854 struct ieee80211_channel *chan,
10857 struct wiphy *wiphy = wdev->wiphy;
10858 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10860 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
10861 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10862 rdev, wdev, cookie, chan, 0, gfp);
10864 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
10866 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10867 struct station_info *sinfo, gfp_t gfp)
10869 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10870 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10871 struct sk_buff *msg;
10873 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10879 if (nl80211_send_station(msg, 0, 0, 0,
10880 rdev, dev, mac_addr, sinfo) < 0) {
10885 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10886 NL80211_MCGRP_MLME, gfp);
10888 EXPORT_SYMBOL(cfg80211_new_sta);
10890 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
10892 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10893 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10894 struct sk_buff *msg;
10897 trace_cfg80211_del_sta(dev, mac_addr);
10899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10903 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10909 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10911 goto nla_put_failure;
10913 genlmsg_end(msg, hdr);
10915 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10916 NL80211_MCGRP_MLME, gfp);
10920 genlmsg_cancel(msg, hdr);
10923 EXPORT_SYMBOL(cfg80211_del_sta);
10925 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10926 enum nl80211_connect_failed_reason reason,
10929 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10930 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10931 struct sk_buff *msg;
10934 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10938 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10944 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10945 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10946 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10947 goto nla_put_failure;
10949 genlmsg_end(msg, hdr);
10951 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10952 NL80211_MCGRP_MLME, gfp);
10956 genlmsg_cancel(msg, hdr);
10959 EXPORT_SYMBOL(cfg80211_conn_failed);
10961 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10962 const u8 *addr, gfp_t gfp)
10964 struct wireless_dev *wdev = dev->ieee80211_ptr;
10965 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
10966 struct sk_buff *msg;
10968 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10973 msg = nlmsg_new(100, gfp);
10977 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10984 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10985 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10986 goto nla_put_failure;
10988 genlmsg_end(msg, hdr);
10989 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10993 genlmsg_cancel(msg, hdr);
10998 bool cfg80211_rx_spurious_frame(struct net_device *dev,
10999 const u8 *addr, gfp_t gfp)
11001 struct wireless_dev *wdev = dev->ieee80211_ptr;
11004 trace_cfg80211_rx_spurious_frame(dev, addr);
11006 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11007 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11008 trace_cfg80211_return_bool(false);
11011 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11013 trace_cfg80211_return_bool(ret);
11016 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11018 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11019 const u8 *addr, gfp_t gfp)
11021 struct wireless_dev *wdev = dev->ieee80211_ptr;
11024 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11026 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11027 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11028 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11029 trace_cfg80211_return_bool(false);
11032 ret = __nl80211_unexpected_frame(dev,
11033 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11035 trace_cfg80211_return_bool(ret);
11038 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
11040 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
11041 struct wireless_dev *wdev, u32 nlportid,
11042 int freq, int sig_dbm,
11043 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
11045 struct net_device *netdev = wdev->netdev;
11046 struct sk_buff *msg;
11049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11059 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11060 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11061 netdev->ifindex)) ||
11062 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11063 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11065 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11066 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11068 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
11069 goto nla_put_failure;
11071 genlmsg_end(msg, hdr);
11073 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11076 genlmsg_cancel(msg, hdr);
11081 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11082 const u8 *buf, size_t len, bool ack, gfp_t gfp)
11084 struct wiphy *wiphy = wdev->wiphy;
11085 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11086 struct net_device *netdev = wdev->netdev;
11087 struct sk_buff *msg;
11090 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
11102 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11103 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11104 netdev->ifindex)) ||
11105 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11106 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11107 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11108 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11109 goto nla_put_failure;
11111 genlmsg_end(msg, hdr);
11113 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11114 NL80211_MCGRP_MLME, gfp);
11118 genlmsg_cancel(msg, hdr);
11121 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11123 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11124 enum nl80211_cqm_rssi_threshold_event rssi_event,
11127 struct wireless_dev *wdev = dev->ieee80211_ptr;
11128 struct wiphy *wiphy = wdev->wiphy;
11129 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11130 struct sk_buff *msg;
11131 struct nlattr *pinfoattr;
11134 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11140 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11146 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11147 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11148 goto nla_put_failure;
11150 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11152 goto nla_put_failure;
11154 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11156 goto nla_put_failure;
11158 nla_nest_end(msg, pinfoattr);
11160 genlmsg_end(msg, hdr);
11162 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11163 NL80211_MCGRP_MLME, gfp);
11167 genlmsg_cancel(msg, hdr);
11170 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11172 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11173 struct net_device *netdev, const u8 *bssid,
11174 const u8 *replay_ctr, gfp_t gfp)
11176 struct sk_buff *msg;
11177 struct nlattr *rekey_attr;
11180 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11184 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11190 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11191 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11193 goto nla_put_failure;
11195 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11197 goto nla_put_failure;
11199 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11200 NL80211_REPLAY_CTR_LEN, replay_ctr))
11201 goto nla_put_failure;
11203 nla_nest_end(msg, rekey_attr);
11205 genlmsg_end(msg, hdr);
11207 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11208 NL80211_MCGRP_MLME, gfp);
11212 genlmsg_cancel(msg, hdr);
11216 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11217 const u8 *replay_ctr, gfp_t gfp)
11219 struct wireless_dev *wdev = dev->ieee80211_ptr;
11220 struct wiphy *wiphy = wdev->wiphy;
11221 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11223 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11224 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11226 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11229 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11230 struct net_device *netdev, int index,
11231 const u8 *bssid, bool preauth, gfp_t gfp)
11233 struct sk_buff *msg;
11234 struct nlattr *attr;
11237 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11241 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11248 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11249 goto nla_put_failure;
11251 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11253 goto nla_put_failure;
11255 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11256 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11258 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11259 goto nla_put_failure;
11261 nla_nest_end(msg, attr);
11263 genlmsg_end(msg, hdr);
11265 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11266 NL80211_MCGRP_MLME, gfp);
11270 genlmsg_cancel(msg, hdr);
11274 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11275 const u8 *bssid, bool preauth, gfp_t gfp)
11277 struct wireless_dev *wdev = dev->ieee80211_ptr;
11278 struct wiphy *wiphy = wdev->wiphy;
11279 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11281 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11282 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11284 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11286 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11287 struct net_device *netdev,
11288 struct cfg80211_chan_def *chandef,
11291 struct sk_buff *msg;
11294 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11298 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11304 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11305 goto nla_put_failure;
11307 if (nl80211_send_chandef(msg, chandef))
11308 goto nla_put_failure;
11310 genlmsg_end(msg, hdr);
11312 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11313 NL80211_MCGRP_MLME, gfp);
11317 genlmsg_cancel(msg, hdr);
11321 void cfg80211_ch_switch_notify(struct net_device *dev,
11322 struct cfg80211_chan_def *chandef)
11324 struct wireless_dev *wdev = dev->ieee80211_ptr;
11325 struct wiphy *wiphy = wdev->wiphy;
11326 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11328 ASSERT_WDEV_LOCK(wdev);
11330 trace_cfg80211_ch_switch_notify(dev, chandef);
11332 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11333 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11334 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11335 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11338 wdev->chandef = *chandef;
11339 wdev->preset_chandef = *chandef;
11340 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
11342 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11344 void cfg80211_cqm_txe_notify(struct net_device *dev,
11345 const u8 *peer, u32 num_packets,
11346 u32 rate, u32 intvl, gfp_t gfp)
11348 struct wireless_dev *wdev = dev->ieee80211_ptr;
11349 struct wiphy *wiphy = wdev->wiphy;
11350 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11351 struct sk_buff *msg;
11352 struct nlattr *pinfoattr;
11355 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11359 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11365 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11366 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11367 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11368 goto nla_put_failure;
11370 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11372 goto nla_put_failure;
11374 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11375 goto nla_put_failure;
11377 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11378 goto nla_put_failure;
11380 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11381 goto nla_put_failure;
11383 nla_nest_end(msg, pinfoattr);
11385 genlmsg_end(msg, hdr);
11387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11388 NL80211_MCGRP_MLME, gfp);
11392 genlmsg_cancel(msg, hdr);
11395 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11398 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11399 const struct cfg80211_chan_def *chandef,
11400 enum nl80211_radar_event event,
11401 struct net_device *netdev, gfp_t gfp)
11403 struct sk_buff *msg;
11406 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11410 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11416 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11417 goto nla_put_failure;
11419 /* NOP and radar events don't need a netdev parameter */
11421 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11423 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11424 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11425 goto nla_put_failure;
11428 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11429 goto nla_put_failure;
11431 if (nl80211_send_chandef(msg, chandef))
11432 goto nla_put_failure;
11434 genlmsg_end(msg, hdr);
11436 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11437 NL80211_MCGRP_MLME, gfp);
11441 genlmsg_cancel(msg, hdr);
11445 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11446 const u8 *peer, u32 num_packets, gfp_t gfp)
11448 struct wireless_dev *wdev = dev->ieee80211_ptr;
11449 struct wiphy *wiphy = wdev->wiphy;
11450 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11451 struct sk_buff *msg;
11452 struct nlattr *pinfoattr;
11455 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11461 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11467 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11468 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11469 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11470 goto nla_put_failure;
11472 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11474 goto nla_put_failure;
11476 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11477 goto nla_put_failure;
11479 nla_nest_end(msg, pinfoattr);
11481 genlmsg_end(msg, hdr);
11483 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11484 NL80211_MCGRP_MLME, gfp);
11488 genlmsg_cancel(msg, hdr);
11491 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11493 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11494 u64 cookie, bool acked, gfp_t gfp)
11496 struct wireless_dev *wdev = dev->ieee80211_ptr;
11497 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11498 struct sk_buff *msg;
11501 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11503 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11515 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11516 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11517 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11518 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11519 goto nla_put_failure;
11521 genlmsg_end(msg, hdr);
11523 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11524 NL80211_MCGRP_MLME, gfp);
11528 genlmsg_cancel(msg, hdr);
11531 EXPORT_SYMBOL(cfg80211_probe_status);
11533 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11534 const u8 *frame, size_t len,
11535 int freq, int sig_dbm)
11537 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11538 struct sk_buff *msg;
11540 struct cfg80211_beacon_registration *reg;
11542 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11544 spin_lock_bh(&rdev->beacon_registrations_lock);
11545 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11546 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11548 spin_unlock_bh(&rdev->beacon_registrations_lock);
11552 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11554 goto nla_put_failure;
11556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11558 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11560 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11561 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11562 goto nla_put_failure;
11564 genlmsg_end(msg, hdr);
11566 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11568 spin_unlock_bh(&rdev->beacon_registrations_lock);
11572 spin_unlock_bh(&rdev->beacon_registrations_lock);
11574 genlmsg_cancel(msg, hdr);
11577 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11580 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11581 struct cfg80211_wowlan_wakeup *wakeup,
11584 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11585 struct sk_buff *msg;
11589 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11592 size += wakeup->packet_present_len;
11594 msg = nlmsg_new(size, gfp);
11598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11602 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11603 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11606 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11607 wdev->netdev->ifindex))
11611 struct nlattr *reasons;
11613 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11617 if (wakeup->disconnect &&
11618 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11620 if (wakeup->magic_pkt &&
11621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11623 if (wakeup->gtk_rekey_failure &&
11624 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11626 if (wakeup->eap_identity_req &&
11627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11629 if (wakeup->four_way_handshake &&
11630 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11632 if (wakeup->rfkill_release &&
11633 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11636 if (wakeup->pattern_idx >= 0 &&
11637 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11638 wakeup->pattern_idx))
11641 if (wakeup->tcp_match &&
11642 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11645 if (wakeup->tcp_connlost &&
11646 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11649 if (wakeup->tcp_nomoretokens &&
11651 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11654 if (wakeup->packet) {
11655 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11656 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11658 if (!wakeup->packet_80211) {
11660 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11662 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11665 if (wakeup->packet_len &&
11666 nla_put_u32(msg, len_attr, wakeup->packet_len))
11669 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11674 nla_nest_end(msg, reasons);
11677 genlmsg_end(msg, hdr);
11679 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11680 NL80211_MCGRP_MLME, gfp);
11686 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11689 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11690 enum nl80211_tdls_operation oper,
11691 u16 reason_code, gfp_t gfp)
11693 struct wireless_dev *wdev = dev->ieee80211_ptr;
11694 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11695 struct sk_buff *msg;
11698 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11711 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11713 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11714 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11715 (reason_code > 0 &&
11716 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11717 goto nla_put_failure;
11719 genlmsg_end(msg, hdr);
11721 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11722 NL80211_MCGRP_MLME, gfp);
11726 genlmsg_cancel(msg, hdr);
11729 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11731 static int nl80211_netlink_notify(struct notifier_block * nb,
11732 unsigned long state,
11735 struct netlink_notify *notify = _notify;
11736 struct cfg80211_registered_device *rdev;
11737 struct wireless_dev *wdev;
11738 struct cfg80211_beacon_registration *reg, *tmp;
11740 if (state != NETLINK_URELEASE)
11741 return NOTIFY_DONE;
11745 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11746 bool schedule_destroy_work = false;
11748 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
11749 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11751 if (wdev->owner_nlportid == notify->portid)
11752 schedule_destroy_work = true;
11755 spin_lock_bh(&rdev->beacon_registrations_lock);
11756 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11758 if (reg->nlportid == notify->portid) {
11759 list_del(®->list);
11764 spin_unlock_bh(&rdev->beacon_registrations_lock);
11766 if (schedule_destroy_work) {
11767 struct cfg80211_iface_destroy *destroy;
11769 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11771 destroy->nlportid = notify->portid;
11772 spin_lock(&rdev->destroy_list_lock);
11773 list_add(&destroy->list, &rdev->destroy_list);
11774 spin_unlock(&rdev->destroy_list_lock);
11775 schedule_work(&rdev->destroy_work);
11785 static struct notifier_block nl80211_netlink_notifier = {
11786 .notifier_call = nl80211_netlink_notify,
11789 void cfg80211_ft_event(struct net_device *netdev,
11790 struct cfg80211_ft_event_params *ft_event)
11792 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11793 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11794 struct sk_buff *msg;
11797 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11799 if (!ft_event->target_ap)
11802 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11806 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11810 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11811 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11812 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11815 if (ft_event->ies &&
11816 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11818 if (ft_event->ric_ies &&
11819 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11820 ft_event->ric_ies))
11823 genlmsg_end(msg, hdr);
11825 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11826 NL80211_MCGRP_MLME, GFP_KERNEL);
11831 EXPORT_SYMBOL(cfg80211_ft_event);
11833 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11835 struct cfg80211_registered_device *rdev;
11836 struct sk_buff *msg;
11840 rdev = wiphy_to_rdev(wdev->wiphy);
11841 if (!rdev->crit_proto_nlportid)
11844 nlportid = rdev->crit_proto_nlportid;
11845 rdev->crit_proto_nlportid = 0;
11847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11851 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11853 goto nla_put_failure;
11855 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11856 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11857 goto nla_put_failure;
11859 genlmsg_end(msg, hdr);
11861 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11866 genlmsg_cancel(msg, hdr);
11870 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11872 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11874 struct wiphy *wiphy = wdev->wiphy;
11875 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11876 struct sk_buff *msg;
11879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11883 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11888 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11889 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11892 genlmsg_end(msg, hdr);
11894 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11895 NL80211_MCGRP_MLME, GFP_KERNEL);
11901 /* initialisation/exit functions */
11903 int nl80211_init(void)
11907 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11912 err = netlink_register_notifier(&nl80211_netlink_notifier);
11918 genl_unregister_family(&nl80211_fam);
11922 void nl80211_exit(void)
11924 netlink_unregister_notifier(&nl80211_netlink_notifier);
11925 genl_unregister_family(&nl80211_fam);