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);
1501 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1502 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1503 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1504 CMD(channel_switch, CHANNEL_SWITCH);
1506 CMD(set_qos_map, SET_QOS_MAP);
1508 #ifdef CONFIG_NL80211_TESTMODE
1509 CMD(testmode_cmd, TESTMODE);
1514 if (rdev->ops->connect || rdev->ops->auth) {
1516 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1517 goto nla_put_failure;
1520 if (rdev->ops->disconnect || rdev->ops->deauth) {
1522 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1523 goto nla_put_failure;
1526 nla_nest_end(msg, nl_cmds);
1527 state->split_start++;
1531 if (rdev->ops->remain_on_channel &&
1532 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1534 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1535 rdev->wiphy.max_remain_on_channel_duration))
1536 goto nla_put_failure;
1538 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1539 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1540 goto nla_put_failure;
1542 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1543 goto nla_put_failure;
1544 state->split_start++;
1549 if (nl80211_send_wowlan(msg, rdev, state->split))
1550 goto nla_put_failure;
1551 state->split_start++;
1555 state->split_start++;
1558 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1559 rdev->wiphy.software_iftypes))
1560 goto nla_put_failure;
1562 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1564 goto nla_put_failure;
1566 state->split_start++;
1570 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1571 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1572 rdev->wiphy.ap_sme_capa))
1573 goto nla_put_failure;
1575 features = rdev->wiphy.features;
1577 * We can only add the per-channel limit information if the
1578 * dump is split, otherwise it makes it too big. Therefore
1579 * only advertise it in that case.
1582 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1583 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1584 goto nla_put_failure;
1586 if (rdev->wiphy.ht_capa_mod_mask &&
1587 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1588 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1589 rdev->wiphy.ht_capa_mod_mask))
1590 goto nla_put_failure;
1592 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1593 rdev->wiphy.max_acl_mac_addrs &&
1594 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1595 rdev->wiphy.max_acl_mac_addrs))
1596 goto nla_put_failure;
1599 * Any information below this point is only available to
1600 * applications that can deal with it being split. This
1601 * helps ensure that newly added capabilities don't break
1602 * older tools by overrunning their buffers.
1604 * We still increment split_start so that in the split
1605 * case we'll continue with more data in the next round,
1606 * but break unconditionally so unsplit data stops here.
1608 state->split_start++;
1611 if (rdev->wiphy.extended_capabilities &&
1612 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1613 rdev->wiphy.extended_capabilities_len,
1614 rdev->wiphy.extended_capabilities) ||
1615 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1616 rdev->wiphy.extended_capabilities_len,
1617 rdev->wiphy.extended_capabilities_mask)))
1618 goto nla_put_failure;
1620 if (rdev->wiphy.vht_capa_mod_mask &&
1621 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1622 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1623 rdev->wiphy.vht_capa_mod_mask))
1624 goto nla_put_failure;
1626 state->split_start++;
1629 if (nl80211_send_coalesce(msg, rdev))
1630 goto nla_put_failure;
1632 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1633 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1634 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1635 goto nla_put_failure;
1637 if (rdev->wiphy.max_ap_assoc_sta &&
1638 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1639 rdev->wiphy.max_ap_assoc_sta))
1640 goto nla_put_failure;
1642 state->split_start++;
1645 if (rdev->wiphy.n_vendor_commands) {
1646 const struct nl80211_vendor_cmd_info *info;
1647 struct nlattr *nested;
1649 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1651 goto nla_put_failure;
1653 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1654 info = &rdev->wiphy.vendor_commands[i].info;
1655 if (nla_put(msg, i + 1, sizeof(*info), info))
1656 goto nla_put_failure;
1658 nla_nest_end(msg, nested);
1661 if (rdev->wiphy.n_vendor_events) {
1662 const struct nl80211_vendor_cmd_info *info;
1663 struct nlattr *nested;
1665 nested = nla_nest_start(msg,
1666 NL80211_ATTR_VENDOR_EVENTS);
1668 goto nla_put_failure;
1670 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1671 info = &rdev->wiphy.vendor_events[i];
1672 if (nla_put(msg, i + 1, sizeof(*info), info))
1673 goto nla_put_failure;
1675 nla_nest_end(msg, nested);
1677 state->split_start++;
1680 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1681 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1682 rdev->wiphy.max_num_csa_counters))
1683 goto nla_put_failure;
1686 state->split_start = 0;
1690 return genlmsg_end(msg, hdr);
1693 genlmsg_cancel(msg, hdr);
1697 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1698 struct netlink_callback *cb,
1699 struct nl80211_dump_wiphy_state *state)
1701 struct nlattr **tb = nl80211_fam.attrbuf;
1702 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1703 tb, nl80211_fam.maxattr, nl80211_policy);
1704 /* ignore parse errors for backward compatibility */
1708 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1709 if (tb[NL80211_ATTR_WIPHY])
1710 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1711 if (tb[NL80211_ATTR_WDEV])
1712 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1713 if (tb[NL80211_ATTR_IFINDEX]) {
1714 struct net_device *netdev;
1715 struct cfg80211_registered_device *rdev;
1716 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1718 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1721 if (netdev->ieee80211_ptr) {
1722 rdev = wiphy_to_rdev(
1723 netdev->ieee80211_ptr->wiphy);
1724 state->filter_wiphy = rdev->wiphy_idx;
1731 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1734 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1735 struct cfg80211_registered_device *rdev;
1739 state = kzalloc(sizeof(*state), GFP_KERNEL);
1744 state->filter_wiphy = -1;
1745 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1751 cb->args[0] = (long)state;
1754 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1755 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1757 if (++idx <= state->start)
1759 if (state->filter_wiphy != -1 &&
1760 state->filter_wiphy != rdev->wiphy_idx)
1762 /* attempt to fit multiple wiphy data chunks into the skb */
1764 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1766 NETLINK_CB(cb->skb).portid,
1768 NLM_F_MULTI, state);
1771 * If sending the wiphy data didn't fit (ENOBUFS
1772 * or EMSGSIZE returned), this SKB is still
1773 * empty (so it's not too big because another
1774 * wiphy dataset is already in the skb) and
1775 * we've not tried to adjust the dump allocation
1776 * yet ... then adjust the alloc size to be
1777 * bigger, and return 1 but with the empty skb.
1778 * This results in an empty message being RX'ed
1779 * in userspace, but that is ignored.
1781 * We can then retry with the larger buffer.
1783 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1784 !skb->len && !state->split &&
1785 cb->min_dump_alloc < 4096) {
1786 cb->min_dump_alloc = 4096;
1787 state->split_start = 0;
1794 } while (state->split_start > 0);
1804 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1806 kfree((void *)cb->args[0]);
1810 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1812 struct sk_buff *msg;
1813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1814 struct nl80211_dump_wiphy_state state = {};
1816 msg = nlmsg_new(4096, GFP_KERNEL);
1820 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1821 info->snd_portid, info->snd_seq, 0,
1827 return genlmsg_reply(msg, info);
1830 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1831 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1832 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1833 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1834 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1835 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1838 static int parse_txq_params(struct nlattr *tb[],
1839 struct ieee80211_txq_params *txq_params)
1841 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1842 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1843 !tb[NL80211_TXQ_ATTR_AIFS])
1846 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1847 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1848 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1849 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1850 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1852 if (txq_params->ac >= NL80211_NUM_ACS)
1858 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1861 * You can only set the channel explicitly for WDS interfaces,
1862 * all others have their channel managed via their respective
1863 * "establish a connection" command (connect, join, ...)
1865 * For AP/GO and mesh mode, the channel can be set with the
1866 * channel userspace API, but is only stored and passed to the
1867 * low-level driver when the AP starts or the mesh is joined.
1868 * This is for backward compatibility, userspace can also give
1869 * the channel in the start-ap or join-mesh commands instead.
1871 * Monitors are special as they are normally slaved to
1872 * whatever else is going on, so they have their own special
1873 * operation to set the monitor channel if possible.
1876 wdev->iftype == NL80211_IFTYPE_AP ||
1877 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1878 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1879 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1882 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1883 struct genl_info *info,
1884 struct cfg80211_chan_def *chandef)
1888 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1891 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1893 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1894 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1895 chandef->center_freq1 = control_freq;
1896 chandef->center_freq2 = 0;
1898 /* Primary channel not allowed */
1899 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1902 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1903 enum nl80211_channel_type chantype;
1905 chantype = nla_get_u32(
1906 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1909 case NL80211_CHAN_NO_HT:
1910 case NL80211_CHAN_HT20:
1911 case NL80211_CHAN_HT40PLUS:
1912 case NL80211_CHAN_HT40MINUS:
1913 cfg80211_chandef_create(chandef, chandef->chan,
1919 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1921 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1922 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1923 chandef->center_freq1 =
1925 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1926 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1927 chandef->center_freq2 =
1929 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1932 if (!cfg80211_chandef_valid(chandef))
1935 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1936 IEEE80211_CHAN_DISABLED))
1939 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1940 chandef->width == NL80211_CHAN_WIDTH_10) &&
1941 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1947 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1948 struct net_device *dev,
1949 struct genl_info *info)
1951 struct cfg80211_chan_def chandef;
1953 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1954 struct wireless_dev *wdev = NULL;
1957 wdev = dev->ieee80211_ptr;
1958 if (!nl80211_can_set_dev_channel(wdev))
1961 iftype = wdev->iftype;
1963 result = nl80211_parse_chandef(rdev, info, &chandef);
1968 case NL80211_IFTYPE_AP:
1969 case NL80211_IFTYPE_P2P_GO:
1970 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
1974 if (wdev->beacon_interval) {
1975 if (!dev || !rdev->ops->set_ap_chanwidth ||
1976 !(rdev->wiphy.features &
1977 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1982 /* Only allow dynamic channel width changes */
1983 if (chandef.chan != wdev->preset_chandef.chan) {
1987 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
1991 wdev->preset_chandef = chandef;
1994 case NL80211_IFTYPE_MESH_POINT:
1995 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1997 case NL80211_IFTYPE_MONITOR:
1998 result = cfg80211_set_monitor_channel(rdev, &chandef);
2007 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2010 struct net_device *netdev = info->user_ptr[1];
2012 return __nl80211_set_channel(rdev, netdev, info);
2015 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2018 struct net_device *dev = info->user_ptr[1];
2019 struct wireless_dev *wdev = dev->ieee80211_ptr;
2022 if (!info->attrs[NL80211_ATTR_MAC])
2025 if (netif_running(dev))
2028 if (!rdev->ops->set_wds_peer)
2031 if (wdev->iftype != NL80211_IFTYPE_WDS)
2034 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2035 return rdev_set_wds_peer(rdev, dev, bssid);
2039 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2041 struct cfg80211_registered_device *rdev;
2042 struct net_device *netdev = NULL;
2043 struct wireless_dev *wdev;
2044 int result = 0, rem_txq_params = 0;
2045 struct nlattr *nl_txq_params;
2047 u8 retry_short = 0, retry_long = 0;
2048 u32 frag_threshold = 0, rts_threshold = 0;
2049 u8 coverage_class = 0;
2054 * Try to find the wiphy and netdev. Normally this
2055 * function shouldn't need the netdev, but this is
2056 * done for backward compatibility -- previously
2057 * setting the channel was done per wiphy, but now
2058 * it is per netdev. Previous userland like hostapd
2059 * also passed a netdev to set_wiphy, so that it is
2060 * possible to let that go to the right netdev!
2063 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2064 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2066 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2067 if (netdev && netdev->ieee80211_ptr)
2068 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2074 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2077 return PTR_ERR(rdev);
2082 wdev = netdev->ieee80211_ptr;
2085 * end workaround code, by now the rdev is available
2086 * and locked, and wdev may or may not be NULL.
2089 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2090 result = cfg80211_dev_rename(
2091 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2096 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2097 struct ieee80211_txq_params txq_params;
2098 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2100 if (!rdev->ops->set_txq_params)
2106 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2107 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2110 if (!netif_running(netdev))
2113 nla_for_each_nested(nl_txq_params,
2114 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2116 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2117 nla_data(nl_txq_params),
2118 nla_len(nl_txq_params),
2122 result = parse_txq_params(tb, &txq_params);
2126 result = rdev_set_txq_params(rdev, netdev,
2133 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2134 result = __nl80211_set_channel(
2136 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2142 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2143 struct wireless_dev *txp_wdev = wdev;
2144 enum nl80211_tx_power_setting type;
2147 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2150 if (!rdev->ops->set_tx_power)
2153 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2154 type = nla_get_u32(info->attrs[idx]);
2156 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2157 (type != NL80211_TX_POWER_AUTOMATIC))
2160 if (type != NL80211_TX_POWER_AUTOMATIC) {
2161 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2162 mbm = nla_get_u32(info->attrs[idx]);
2165 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2170 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2171 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2173 if ((!rdev->wiphy.available_antennas_tx &&
2174 !rdev->wiphy.available_antennas_rx) ||
2175 !rdev->ops->set_antenna)
2178 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2179 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2181 /* reject antenna configurations which don't match the
2182 * available antenna masks, except for the "all" mask */
2183 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2184 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2187 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2188 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2190 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2197 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2198 retry_short = nla_get_u8(
2199 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2200 if (retry_short == 0)
2203 changed |= WIPHY_PARAM_RETRY_SHORT;
2206 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2207 retry_long = nla_get_u8(
2208 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2209 if (retry_long == 0)
2212 changed |= WIPHY_PARAM_RETRY_LONG;
2215 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2216 frag_threshold = nla_get_u32(
2217 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2218 if (frag_threshold < 256)
2221 if (frag_threshold != (u32) -1) {
2223 * Fragments (apart from the last one) are required to
2224 * have even length. Make the fragmentation code
2225 * simpler by stripping LSB should someone try to use
2226 * odd threshold value.
2228 frag_threshold &= ~0x1;
2230 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2233 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2234 rts_threshold = nla_get_u32(
2235 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2236 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2239 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2240 coverage_class = nla_get_u8(
2241 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2242 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2246 u8 old_retry_short, old_retry_long;
2247 u32 old_frag_threshold, old_rts_threshold;
2248 u8 old_coverage_class;
2250 if (!rdev->ops->set_wiphy_params)
2253 old_retry_short = rdev->wiphy.retry_short;
2254 old_retry_long = rdev->wiphy.retry_long;
2255 old_frag_threshold = rdev->wiphy.frag_threshold;
2256 old_rts_threshold = rdev->wiphy.rts_threshold;
2257 old_coverage_class = rdev->wiphy.coverage_class;
2259 if (changed & WIPHY_PARAM_RETRY_SHORT)
2260 rdev->wiphy.retry_short = retry_short;
2261 if (changed & WIPHY_PARAM_RETRY_LONG)
2262 rdev->wiphy.retry_long = retry_long;
2263 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2264 rdev->wiphy.frag_threshold = frag_threshold;
2265 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2266 rdev->wiphy.rts_threshold = rts_threshold;
2267 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2268 rdev->wiphy.coverage_class = coverage_class;
2270 result = rdev_set_wiphy_params(rdev, changed);
2272 rdev->wiphy.retry_short = old_retry_short;
2273 rdev->wiphy.retry_long = old_retry_long;
2274 rdev->wiphy.frag_threshold = old_frag_threshold;
2275 rdev->wiphy.rts_threshold = old_rts_threshold;
2276 rdev->wiphy.coverage_class = old_coverage_class;
2282 static inline u64 wdev_id(struct wireless_dev *wdev)
2284 return (u64)wdev->identifier |
2285 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2288 static int nl80211_send_chandef(struct sk_buff *msg,
2289 const struct cfg80211_chan_def *chandef)
2291 WARN_ON(!cfg80211_chandef_valid(chandef));
2293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2294 chandef->chan->center_freq))
2296 switch (chandef->width) {
2297 case NL80211_CHAN_WIDTH_20_NOHT:
2298 case NL80211_CHAN_WIDTH_20:
2299 case NL80211_CHAN_WIDTH_40:
2300 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2301 cfg80211_get_chandef_type(chandef)))
2307 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2309 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2311 if (chandef->center_freq2 &&
2312 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2317 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2318 struct cfg80211_registered_device *rdev,
2319 struct wireless_dev *wdev)
2321 struct net_device *dev = wdev->netdev;
2324 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2329 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2330 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2331 goto nla_put_failure;
2333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2334 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2335 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2336 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2337 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2338 rdev->devlist_generation ^
2339 (cfg80211_rdev_list_generation << 2)))
2340 goto nla_put_failure;
2342 if (rdev->ops->get_channel) {
2344 struct cfg80211_chan_def chandef;
2346 ret = rdev_get_channel(rdev, wdev, &chandef);
2348 if (nl80211_send_chandef(msg, &chandef))
2349 goto nla_put_failure;
2353 if (wdev->ssid_len) {
2354 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2355 goto nla_put_failure;
2358 return genlmsg_end(msg, hdr);
2361 genlmsg_cancel(msg, hdr);
2365 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2369 int wp_start = cb->args[0];
2370 int if_start = cb->args[1];
2371 struct cfg80211_registered_device *rdev;
2372 struct wireless_dev *wdev;
2375 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2376 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2378 if (wp_idx < wp_start) {
2384 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2385 if (if_idx < if_start) {
2389 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2390 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2402 cb->args[0] = wp_idx;
2403 cb->args[1] = if_idx;
2408 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2410 struct sk_buff *msg;
2411 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2412 struct wireless_dev *wdev = info->user_ptr[1];
2414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2418 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2424 return genlmsg_reply(msg, info);
2427 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2428 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2429 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2430 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2431 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2432 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2433 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2436 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2438 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2446 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2447 nla, mntr_flags_policy))
2450 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2452 *mntrflags |= (1<<flag);
2457 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2458 struct net_device *netdev, u8 use_4addr,
2459 enum nl80211_iftype iftype)
2462 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2468 case NL80211_IFTYPE_AP_VLAN:
2469 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2472 case NL80211_IFTYPE_STATION:
2473 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2483 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2485 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2486 struct vif_params params;
2488 enum nl80211_iftype otype, ntype;
2489 struct net_device *dev = info->user_ptr[1];
2490 u32 _flags, *flags = NULL;
2491 bool change = false;
2493 memset(¶ms, 0, sizeof(params));
2495 otype = ntype = dev->ieee80211_ptr->iftype;
2497 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2498 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2501 if (ntype > NL80211_IFTYPE_MAX)
2505 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2506 struct wireless_dev *wdev = dev->ieee80211_ptr;
2508 if (ntype != NL80211_IFTYPE_MESH_POINT)
2510 if (netif_running(dev))
2514 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2515 IEEE80211_MAX_MESH_ID_LEN);
2516 wdev->mesh_id_up_len =
2517 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2518 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2519 wdev->mesh_id_up_len);
2523 if (info->attrs[NL80211_ATTR_4ADDR]) {
2524 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2526 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2530 params.use_4addr = -1;
2533 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2534 if (ntype != NL80211_IFTYPE_MONITOR)
2536 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2545 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2546 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2550 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2554 if (!err && params.use_4addr != -1)
2555 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2560 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2563 struct vif_params params;
2564 struct wireless_dev *wdev;
2565 struct sk_buff *msg;
2567 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2570 /* to avoid failing a new interface creation due to pending removal */
2571 cfg80211_destroy_ifaces(rdev);
2573 memset(¶ms, 0, sizeof(params));
2575 if (!info->attrs[NL80211_ATTR_IFNAME])
2578 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2579 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2580 if (type > NL80211_IFTYPE_MAX)
2584 if (!rdev->ops->add_virtual_intf ||
2585 !(rdev->wiphy.interface_modes & (1 << type)))
2588 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2589 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2591 if (!is_valid_ether_addr(params.macaddr))
2592 return -EADDRNOTAVAIL;
2595 if (info->attrs[NL80211_ATTR_4ADDR]) {
2596 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2597 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2602 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2606 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2607 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2610 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2611 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2614 wdev = rdev_add_virtual_intf(rdev,
2615 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2616 type, err ? NULL : &flags, ¶ms);
2619 return PTR_ERR(wdev);
2622 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2623 wdev->owner_nlportid = info->snd_portid;
2626 case NL80211_IFTYPE_MESH_POINT:
2627 if (!info->attrs[NL80211_ATTR_MESH_ID])
2630 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2631 IEEE80211_MAX_MESH_ID_LEN);
2632 wdev->mesh_id_up_len =
2633 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2634 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2635 wdev->mesh_id_up_len);
2638 case NL80211_IFTYPE_P2P_DEVICE:
2640 * P2P Device doesn't have a netdev, so doesn't go
2641 * through the netdev notifier and must be added here
2643 mutex_init(&wdev->mtx);
2644 INIT_LIST_HEAD(&wdev->event_list);
2645 spin_lock_init(&wdev->event_lock);
2646 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2647 spin_lock_init(&wdev->mgmt_registrations_lock);
2649 wdev->identifier = ++rdev->wdev_id;
2650 list_add_rcu(&wdev->list, &rdev->wdev_list);
2651 rdev->devlist_generation++;
2657 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2663 return genlmsg_reply(msg, info);
2666 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2668 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2669 struct wireless_dev *wdev = info->user_ptr[1];
2671 if (!rdev->ops->del_virtual_intf)
2675 * If we remove a wireless device without a netdev then clear
2676 * user_ptr[1] so that nl80211_post_doit won't dereference it
2677 * to check if it needs to do dev_put(). Otherwise it crashes
2678 * since the wdev has been freed, unlike with a netdev where
2679 * we need the dev_put() for the netdev to really be freed.
2682 info->user_ptr[1] = NULL;
2684 return rdev_del_virtual_intf(rdev, wdev);
2687 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2690 struct net_device *dev = info->user_ptr[1];
2693 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2696 if (!rdev->ops->set_noack_map)
2699 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2701 return rdev_set_noack_map(rdev, dev, noack_map);
2704 struct get_key_cookie {
2705 struct sk_buff *msg;
2710 static void get_key_callback(void *c, struct key_params *params)
2713 struct get_key_cookie *cookie = c;
2716 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2717 params->key_len, params->key)) ||
2719 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2720 params->seq_len, params->seq)) ||
2722 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2724 goto nla_put_failure;
2726 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2728 goto nla_put_failure;
2731 nla_put(cookie->msg, NL80211_KEY_DATA,
2732 params->key_len, params->key)) ||
2734 nla_put(cookie->msg, NL80211_KEY_SEQ,
2735 params->seq_len, params->seq)) ||
2737 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2739 goto nla_put_failure;
2741 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2742 goto nla_put_failure;
2744 nla_nest_end(cookie->msg, key);
2751 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2755 struct net_device *dev = info->user_ptr[1];
2757 const u8 *mac_addr = NULL;
2759 struct get_key_cookie cookie = {
2763 struct sk_buff *msg;
2765 if (info->attrs[NL80211_ATTR_KEY_IDX])
2766 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2771 if (info->attrs[NL80211_ATTR_MAC])
2772 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2774 pairwise = !!mac_addr;
2775 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2776 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2777 if (kt >= NUM_NL80211_KEYTYPES)
2779 if (kt != NL80211_KEYTYPE_GROUP &&
2780 kt != NL80211_KEYTYPE_PAIRWISE)
2782 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2785 if (!rdev->ops->get_key)
2788 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2792 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2793 NL80211_CMD_NEW_KEY);
2795 goto nla_put_failure;
2798 cookie.idx = key_idx;
2800 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2801 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2802 goto nla_put_failure;
2804 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2805 goto nla_put_failure;
2807 if (pairwise && mac_addr &&
2808 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2811 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2818 goto nla_put_failure;
2820 genlmsg_end(msg, hdr);
2821 return genlmsg_reply(msg, info);
2830 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2833 struct key_parse key;
2835 struct net_device *dev = info->user_ptr[1];
2837 err = nl80211_parse_key(info, &key);
2844 /* only support setting default key */
2845 if (!key.def && !key.defmgmt)
2848 wdev_lock(dev->ieee80211_ptr);
2851 if (!rdev->ops->set_default_key) {
2856 err = nl80211_key_allowed(dev->ieee80211_ptr);
2860 err = rdev_set_default_key(rdev, dev, key.idx,
2861 key.def_uni, key.def_multi);
2866 #ifdef CONFIG_CFG80211_WEXT
2867 dev->ieee80211_ptr->wext.default_key = key.idx;
2870 if (key.def_uni || !key.def_multi) {
2875 if (!rdev->ops->set_default_mgmt_key) {
2880 err = nl80211_key_allowed(dev->ieee80211_ptr);
2884 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2888 #ifdef CONFIG_CFG80211_WEXT
2889 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2894 wdev_unlock(dev->ieee80211_ptr);
2899 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2903 struct net_device *dev = info->user_ptr[1];
2904 struct key_parse key;
2905 const u8 *mac_addr = NULL;
2907 err = nl80211_parse_key(info, &key);
2914 if (info->attrs[NL80211_ATTR_MAC])
2915 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2917 if (key.type == -1) {
2919 key.type = NL80211_KEYTYPE_PAIRWISE;
2921 key.type = NL80211_KEYTYPE_GROUP;
2925 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2926 key.type != NL80211_KEYTYPE_GROUP)
2929 if (!rdev->ops->add_key)
2932 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2933 key.type == NL80211_KEYTYPE_PAIRWISE,
2937 wdev_lock(dev->ieee80211_ptr);
2938 err = nl80211_key_allowed(dev->ieee80211_ptr);
2940 err = rdev_add_key(rdev, dev, key.idx,
2941 key.type == NL80211_KEYTYPE_PAIRWISE,
2943 wdev_unlock(dev->ieee80211_ptr);
2948 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2952 struct net_device *dev = info->user_ptr[1];
2953 u8 *mac_addr = NULL;
2954 struct key_parse key;
2956 err = nl80211_parse_key(info, &key);
2960 if (info->attrs[NL80211_ATTR_MAC])
2961 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2963 if (key.type == -1) {
2965 key.type = NL80211_KEYTYPE_PAIRWISE;
2967 key.type = NL80211_KEYTYPE_GROUP;
2971 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2972 key.type != NL80211_KEYTYPE_GROUP)
2975 if (!rdev->ops->del_key)
2978 wdev_lock(dev->ieee80211_ptr);
2979 err = nl80211_key_allowed(dev->ieee80211_ptr);
2981 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2982 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2986 err = rdev_del_key(rdev, dev, key.idx,
2987 key.type == NL80211_KEYTYPE_PAIRWISE,
2990 #ifdef CONFIG_CFG80211_WEXT
2992 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2993 dev->ieee80211_ptr->wext.default_key = -1;
2994 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2995 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2998 wdev_unlock(dev->ieee80211_ptr);
3003 /* This function returns an error or the number of nested attributes */
3004 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3006 struct nlattr *attr;
3007 int n_entries = 0, tmp;
3009 nla_for_each_nested(attr, nl_attr, tmp) {
3010 if (nla_len(attr) != ETH_ALEN)
3020 * This function parses ACL information and allocates memory for ACL data.
3021 * On successful return, the calling function is responsible to free the
3022 * ACL buffer returned by this function.
3024 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3025 struct genl_info *info)
3027 enum nl80211_acl_policy acl_policy;
3028 struct nlattr *attr;
3029 struct cfg80211_acl_data *acl;
3030 int i = 0, n_entries, tmp;
3032 if (!wiphy->max_acl_mac_addrs)
3033 return ERR_PTR(-EOPNOTSUPP);
3035 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3036 return ERR_PTR(-EINVAL);
3038 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3039 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3040 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3041 return ERR_PTR(-EINVAL);
3043 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3044 return ERR_PTR(-EINVAL);
3046 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3048 return ERR_PTR(n_entries);
3050 if (n_entries > wiphy->max_acl_mac_addrs)
3051 return ERR_PTR(-ENOTSUPP);
3053 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3056 return ERR_PTR(-ENOMEM);
3058 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3059 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3063 acl->n_acl_entries = n_entries;
3064 acl->acl_policy = acl_policy;
3069 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3071 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3072 struct net_device *dev = info->user_ptr[1];
3073 struct cfg80211_acl_data *acl;
3076 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3077 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3080 if (!dev->ieee80211_ptr->beacon_interval)
3083 acl = parse_acl_data(&rdev->wiphy, info);
3085 return PTR_ERR(acl);
3087 err = rdev_set_mac_acl(rdev, dev, acl);
3094 static int nl80211_parse_beacon(struct nlattr *attrs[],
3095 struct cfg80211_beacon_data *bcn)
3097 bool haveinfo = false;
3099 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3100 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3101 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3102 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3105 memset(bcn, 0, sizeof(*bcn));
3107 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3108 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3109 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3115 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3116 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3117 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3124 if (attrs[NL80211_ATTR_IE]) {
3125 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3126 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3129 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3130 bcn->proberesp_ies =
3131 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3132 bcn->proberesp_ies_len =
3133 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3136 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3137 bcn->assocresp_ies =
3138 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3139 bcn->assocresp_ies_len =
3140 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3143 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3144 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3145 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3151 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3152 struct cfg80211_ap_settings *params)
3154 struct wireless_dev *wdev;
3157 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3158 if (wdev->iftype != NL80211_IFTYPE_AP &&
3159 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3162 if (!wdev->preset_chandef.chan)
3165 params->chandef = wdev->preset_chandef;
3173 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3174 enum nl80211_auth_type auth_type,
3175 enum nl80211_commands cmd)
3177 if (auth_type > NL80211_AUTHTYPE_MAX)
3181 case NL80211_CMD_AUTHENTICATE:
3182 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3183 auth_type == NL80211_AUTHTYPE_SAE)
3186 case NL80211_CMD_CONNECT:
3187 case NL80211_CMD_START_AP:
3188 /* SAE not supported yet */
3189 if (auth_type == NL80211_AUTHTYPE_SAE)
3197 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3199 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3200 struct net_device *dev = info->user_ptr[1];
3201 struct wireless_dev *wdev = dev->ieee80211_ptr;
3202 struct cfg80211_ap_settings params;
3205 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3206 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3209 if (!rdev->ops->start_ap)
3212 if (wdev->beacon_interval)
3215 memset(¶ms, 0, sizeof(params));
3217 /* these are required for START_AP */
3218 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3219 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3220 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3223 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3227 params.beacon_interval =
3228 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3229 params.dtim_period =
3230 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3232 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3237 * In theory, some of these attributes should be required here
3238 * but since they were not used when the command was originally
3239 * added, keep them optional for old user space programs to let
3240 * them continue to work with drivers that do not need the
3241 * additional information -- drivers must check!
3243 if (info->attrs[NL80211_ATTR_SSID]) {
3244 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3246 nla_len(info->attrs[NL80211_ATTR_SSID]);
3247 if (params.ssid_len == 0 ||
3248 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3252 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3253 params.hidden_ssid = nla_get_u32(
3254 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3255 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3256 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3257 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3261 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3263 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3264 params.auth_type = nla_get_u32(
3265 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3266 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3267 NL80211_CMD_START_AP))
3270 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3272 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3273 NL80211_MAX_NR_CIPHER_SUITES);
3277 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3278 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3280 params.inactivity_timeout = nla_get_u16(
3281 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3284 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3285 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3287 params.p2p_ctwindow =
3288 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3289 if (params.p2p_ctwindow > 127)
3291 if (params.p2p_ctwindow != 0 &&
3292 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3296 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3299 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3301 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3304 params.p2p_opp_ps = tmp;
3305 if (params.p2p_opp_ps != 0 &&
3306 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3310 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3311 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3314 } else if (wdev->preset_chandef.chan) {
3315 params.chandef = wdev->preset_chandef;
3316 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3319 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
3323 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3324 params.acl = parse_acl_data(&rdev->wiphy, info);
3325 if (IS_ERR(params.acl))
3326 return PTR_ERR(params.acl);
3330 err = rdev_start_ap(rdev, dev, ¶ms);
3332 wdev->preset_chandef = params.chandef;
3333 wdev->beacon_interval = params.beacon_interval;
3334 wdev->chandef = params.chandef;
3335 wdev->ssid_len = params.ssid_len;
3336 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3345 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3348 struct net_device *dev = info->user_ptr[1];
3349 struct wireless_dev *wdev = dev->ieee80211_ptr;
3350 struct cfg80211_beacon_data params;
3353 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3354 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3357 if (!rdev->ops->change_beacon)
3360 if (!wdev->beacon_interval)
3363 err = nl80211_parse_beacon(info->attrs, ¶ms);
3368 err = rdev_change_beacon(rdev, dev, ¶ms);
3374 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3376 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3377 struct net_device *dev = info->user_ptr[1];
3379 return cfg80211_stop_ap(rdev, dev, false);
3382 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3383 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3384 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3385 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3386 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3387 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3388 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3391 static int parse_station_flags(struct genl_info *info,
3392 enum nl80211_iftype iftype,
3393 struct station_parameters *params)
3395 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3400 * Try parsing the new attribute first so userspace
3401 * can specify both for older kernels.
3403 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3405 struct nl80211_sta_flag_update *sta_flags;
3407 sta_flags = nla_data(nla);
3408 params->sta_flags_mask = sta_flags->mask;
3409 params->sta_flags_set = sta_flags->set;
3410 params->sta_flags_set &= params->sta_flags_mask;
3411 if ((params->sta_flags_mask |
3412 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3417 /* if present, parse the old attribute */
3419 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3423 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3424 nla, sta_flags_policy))
3428 * Only allow certain flags for interface types so that
3429 * other attributes are silently ignored. Remember that
3430 * this is backward compatibility code with old userspace
3431 * and shouldn't be hit in other cases anyway.
3434 case NL80211_IFTYPE_AP:
3435 case NL80211_IFTYPE_AP_VLAN:
3436 case NL80211_IFTYPE_P2P_GO:
3437 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3438 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3439 BIT(NL80211_STA_FLAG_WME) |
3440 BIT(NL80211_STA_FLAG_MFP);
3442 case NL80211_IFTYPE_P2P_CLIENT:
3443 case NL80211_IFTYPE_STATION:
3444 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3445 BIT(NL80211_STA_FLAG_TDLS_PEER);
3447 case NL80211_IFTYPE_MESH_POINT:
3448 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3449 BIT(NL80211_STA_FLAG_MFP) |
3450 BIT(NL80211_STA_FLAG_AUTHORIZED);
3455 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3457 params->sta_flags_set |= (1<<flag);
3459 /* no longer support new API additions in old API */
3460 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3468 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3471 struct nlattr *rate;
3475 rate = nla_nest_start(msg, attr);
3479 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3480 bitrate = cfg80211_calculate_bitrate(info);
3481 /* report 16-bit bitrate only if we can */
3482 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3484 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3486 if (bitrate_compat > 0 &&
3487 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3490 if (info->flags & RATE_INFO_FLAGS_MCS) {
3491 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3493 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3494 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3496 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3497 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3499 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3500 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3502 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3504 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3505 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3507 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3508 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3510 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3511 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3513 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3514 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3516 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3517 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3521 nla_nest_end(msg, rate);
3525 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3534 attr = nla_nest_start(msg, id);
3538 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3539 if (!(mask & BIT(i)))
3542 if (nla_put_u8(msg, i, signal[i]))
3546 nla_nest_end(msg, attr);
3551 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3553 struct cfg80211_registered_device *rdev,
3554 struct net_device *dev,
3555 const u8 *mac_addr, struct station_info *sinfo)
3558 struct nlattr *sinfoattr, *bss_param;
3560 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3564 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3565 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3566 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3567 goto nla_put_failure;
3569 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3571 goto nla_put_failure;
3572 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3573 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3574 sinfo->connected_time))
3575 goto nla_put_failure;
3576 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3577 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3578 sinfo->inactive_time))
3579 goto nla_put_failure;
3580 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3581 STATION_INFO_RX_BYTES64)) &&
3582 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3583 (u32)sinfo->rx_bytes))
3584 goto nla_put_failure;
3585 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3586 STATION_INFO_TX_BYTES64)) &&
3587 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3588 (u32)sinfo->tx_bytes))
3589 goto nla_put_failure;
3590 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3591 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3593 goto nla_put_failure;
3594 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3595 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3597 goto nla_put_failure;
3598 if ((sinfo->filled & STATION_INFO_LLID) &&
3599 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3600 goto nla_put_failure;
3601 if ((sinfo->filled & STATION_INFO_PLID) &&
3602 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3603 goto nla_put_failure;
3604 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3605 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3606 sinfo->plink_state))
3607 goto nla_put_failure;
3608 switch (rdev->wiphy.signal_type) {
3609 case CFG80211_SIGNAL_TYPE_MBM:
3610 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3611 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3613 goto nla_put_failure;
3614 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3615 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3617 goto nla_put_failure;
3622 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3623 if (!nl80211_put_signal(msg, sinfo->chains,
3624 sinfo->chain_signal,
3625 NL80211_STA_INFO_CHAIN_SIGNAL))
3626 goto nla_put_failure;
3628 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3629 if (!nl80211_put_signal(msg, sinfo->chains,
3630 sinfo->chain_signal_avg,
3631 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3632 goto nla_put_failure;
3634 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3635 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3636 NL80211_STA_INFO_TX_BITRATE))
3637 goto nla_put_failure;
3639 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3640 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3641 NL80211_STA_INFO_RX_BITRATE))
3642 goto nla_put_failure;
3644 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3645 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3647 goto nla_put_failure;
3648 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3649 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3651 goto nla_put_failure;
3652 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3653 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3655 goto nla_put_failure;
3656 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3657 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3659 goto nla_put_failure;
3660 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3661 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3662 sinfo->expected_throughput))
3663 goto nla_put_failure;
3664 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3665 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3666 sinfo->beacon_loss_count))
3667 goto nla_put_failure;
3668 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3669 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3671 goto nla_put_failure;
3672 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3673 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3675 goto nla_put_failure;
3676 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3677 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3679 goto nla_put_failure;
3680 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3681 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3683 goto nla_put_failure;
3685 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3686 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3687 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3688 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3689 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3690 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3691 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3692 sinfo->bss_param.dtim_period) ||
3693 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3694 sinfo->bss_param.beacon_interval))
3695 goto nla_put_failure;
3697 nla_nest_end(msg, bss_param);
3699 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3700 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3701 sizeof(struct nl80211_sta_flag_update),
3703 goto nla_put_failure;
3704 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3705 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3707 goto nla_put_failure;
3708 nla_nest_end(msg, sinfoattr);
3710 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3711 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3712 sinfo->assoc_req_ies))
3713 goto nla_put_failure;
3715 return genlmsg_end(msg, hdr);
3718 genlmsg_cancel(msg, hdr);
3722 static int nl80211_dump_station(struct sk_buff *skb,
3723 struct netlink_callback *cb)
3725 struct station_info sinfo;
3726 struct cfg80211_registered_device *rdev;
3727 struct wireless_dev *wdev;
3728 u8 mac_addr[ETH_ALEN];
3729 int sta_idx = cb->args[2];
3732 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3736 if (!wdev->netdev) {
3741 if (!rdev->ops->dump_station) {
3747 memset(&sinfo, 0, sizeof(sinfo));
3748 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3755 if (nl80211_send_station(skb,
3756 NETLINK_CB(cb->skb).portid,
3757 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3758 rdev, wdev->netdev, mac_addr,
3767 cb->args[2] = sta_idx;
3770 nl80211_finish_wdev_dump(rdev);
3775 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3777 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3778 struct net_device *dev = info->user_ptr[1];
3779 struct station_info sinfo;
3780 struct sk_buff *msg;
3781 u8 *mac_addr = NULL;
3784 memset(&sinfo, 0, sizeof(sinfo));
3786 if (!info->attrs[NL80211_ATTR_MAC])
3789 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3791 if (!rdev->ops->get_station)
3794 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3798 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3802 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3803 rdev, dev, mac_addr, &sinfo) < 0) {
3808 return genlmsg_reply(msg, info);
3811 int cfg80211_check_station_change(struct wiphy *wiphy,
3812 struct station_parameters *params,
3813 enum cfg80211_station_type statype)
3815 if (params->listen_interval != -1)
3820 /* When you run into this, adjust the code below for the new flag */
3821 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3824 case CFG80211_STA_MESH_PEER_KERNEL:
3825 case CFG80211_STA_MESH_PEER_USER:
3827 * No ignoring the TDLS flag here -- the userspace mesh
3828 * code doesn't have the bug of including TDLS in the
3831 if (params->sta_flags_mask &
3832 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3833 BIT(NL80211_STA_FLAG_MFP) |
3834 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3837 case CFG80211_STA_TDLS_PEER_SETUP:
3838 case CFG80211_STA_TDLS_PEER_ACTIVE:
3839 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3841 /* ignore since it can't change */
3842 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3845 /* disallow mesh-specific things */
3846 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3848 if (params->local_pm)
3850 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3854 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3855 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3856 /* TDLS can't be set, ... */
3857 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3860 * ... but don't bother the driver with it. This works around
3861 * a hostapd/wpa_supplicant issue -- it always includes the
3862 * TLDS_PEER flag in the mask even for AP mode.
3864 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3867 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3868 /* reject other things that can't change */
3869 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3871 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3873 if (params->supported_rates)
3875 if (params->ext_capab || params->ht_capa || params->vht_capa)
3879 if (statype != CFG80211_STA_AP_CLIENT) {
3885 case CFG80211_STA_AP_MLME_CLIENT:
3886 /* Use this only for authorizing/unauthorizing a station */
3887 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3890 case CFG80211_STA_AP_CLIENT:
3891 /* accept only the listed bits */
3892 if (params->sta_flags_mask &
3893 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3894 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3895 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3896 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3897 BIT(NL80211_STA_FLAG_WME) |
3898 BIT(NL80211_STA_FLAG_MFP)))
3901 /* but authenticated/associated only if driver handles it */
3902 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3903 params->sta_flags_mask &
3904 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3905 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3908 case CFG80211_STA_IBSS:
3909 case CFG80211_STA_AP_STA:
3910 /* reject any changes other than AUTHORIZED */
3911 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3914 case CFG80211_STA_TDLS_PEER_SETUP:
3915 /* reject any changes other than AUTHORIZED or WME */
3916 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3917 BIT(NL80211_STA_FLAG_WME)))
3919 /* force (at least) rates when authorizing */
3920 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3921 !params->supported_rates)
3924 case CFG80211_STA_TDLS_PEER_ACTIVE:
3925 /* reject any changes */
3927 case CFG80211_STA_MESH_PEER_KERNEL:
3928 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3931 case CFG80211_STA_MESH_PEER_USER:
3932 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3939 EXPORT_SYMBOL(cfg80211_check_station_change);
3942 * Get vlan interface making sure it is running and on the right wiphy.
3944 static struct net_device *get_vlan(struct genl_info *info,
3945 struct cfg80211_registered_device *rdev)
3947 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3948 struct net_device *v;
3954 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3956 return ERR_PTR(-ENODEV);
3958 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3963 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3964 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3965 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3970 if (!netif_running(v)) {
3978 return ERR_PTR(ret);
3981 static const struct nla_policy
3982 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
3983 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3984 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3987 static int nl80211_parse_sta_wme(struct genl_info *info,
3988 struct station_parameters *params)
3990 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3994 /* parse WME attributes if present */
3995 if (!info->attrs[NL80211_ATTR_STA_WME])
3998 nla = info->attrs[NL80211_ATTR_STA_WME];
3999 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4000 nl80211_sta_wme_policy);
4004 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4005 params->uapsd_queues = nla_get_u8(
4006 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4007 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4010 if (tb[NL80211_STA_WME_MAX_SP])
4011 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4013 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4016 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4021 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4022 struct station_parameters *params)
4024 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4025 params->supported_channels =
4026 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4027 params->supported_channels_len =
4028 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4030 * Need to include at least one (first channel, number of
4031 * channels) tuple for each subband, and must have proper
4032 * tuples for the rest of the data as well.
4034 if (params->supported_channels_len < 2)
4036 if (params->supported_channels_len % 2)
4040 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4041 params->supported_oper_classes =
4042 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4043 params->supported_oper_classes_len =
4044 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4046 * The value of the Length field of the Supported Operating
4047 * Classes element is between 2 and 253.
4049 if (params->supported_oper_classes_len < 2 ||
4050 params->supported_oper_classes_len > 253)
4056 static int nl80211_set_station_tdls(struct genl_info *info,
4057 struct station_parameters *params)
4060 /* Dummy STA entry gets updated once the peer capabilities are known */
4061 if (info->attrs[NL80211_ATTR_PEER_AID])
4062 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4063 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4065 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4066 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4068 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4070 err = nl80211_parse_sta_channel_info(info, params);
4074 return nl80211_parse_sta_wme(info, params);
4077 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4079 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4080 struct net_device *dev = info->user_ptr[1];
4081 struct station_parameters params;
4085 memset(¶ms, 0, sizeof(params));
4087 params.listen_interval = -1;
4089 if (!rdev->ops->change_station)
4092 if (info->attrs[NL80211_ATTR_STA_AID])
4095 if (!info->attrs[NL80211_ATTR_MAC])
4098 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4100 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4101 params.supported_rates =
4102 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4103 params.supported_rates_len =
4104 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4107 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4109 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4110 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4113 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4115 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4116 params.ext_capab_len =
4117 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4120 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4123 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4126 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4127 params.plink_action =
4128 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4129 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4133 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4134 params.plink_state =
4135 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4136 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4138 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4141 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4142 enum nl80211_mesh_power_mode pm = nla_get_u32(
4143 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4145 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4146 pm > NL80211_MESH_POWER_MAX)
4149 params.local_pm = pm;
4152 /* Include parameters for TDLS peer (will check later) */
4153 err = nl80211_set_station_tdls(info, ¶ms);
4157 params.vlan = get_vlan(info, rdev);
4158 if (IS_ERR(params.vlan))
4159 return PTR_ERR(params.vlan);
4161 switch (dev->ieee80211_ptr->iftype) {
4162 case NL80211_IFTYPE_AP:
4163 case NL80211_IFTYPE_AP_VLAN:
4164 case NL80211_IFTYPE_P2P_GO:
4165 case NL80211_IFTYPE_P2P_CLIENT:
4166 case NL80211_IFTYPE_STATION:
4167 case NL80211_IFTYPE_ADHOC:
4168 case NL80211_IFTYPE_MESH_POINT:
4175 /* driver will call cfg80211_check_station_change() */
4176 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4180 dev_put(params.vlan);
4185 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4187 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4189 struct net_device *dev = info->user_ptr[1];
4190 struct station_parameters params;
4191 u8 *mac_addr = NULL;
4193 memset(¶ms, 0, sizeof(params));
4195 if (!rdev->ops->add_station)
4198 if (!info->attrs[NL80211_ATTR_MAC])
4201 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4204 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4207 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4208 !info->attrs[NL80211_ATTR_PEER_AID])
4211 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4212 params.supported_rates =
4213 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4214 params.supported_rates_len =
4215 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4216 params.listen_interval =
4217 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4219 if (info->attrs[NL80211_ATTR_PEER_AID])
4220 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4222 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4223 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4226 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4228 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4229 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4232 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4234 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4235 params.ext_capab_len =
4236 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4239 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4241 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4243 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4245 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4247 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4248 params.opmode_notif_used = true;
4249 params.opmode_notif =
4250 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4253 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4254 params.plink_action =
4255 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4256 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4260 err = nl80211_parse_sta_channel_info(info, ¶ms);
4264 err = nl80211_parse_sta_wme(info, ¶ms);
4268 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4271 /* When you run into this, adjust the code below for the new flag */
4272 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4274 switch (dev->ieee80211_ptr->iftype) {
4275 case NL80211_IFTYPE_AP:
4276 case NL80211_IFTYPE_AP_VLAN:
4277 case NL80211_IFTYPE_P2P_GO:
4278 /* ignore WME attributes if iface/sta is not capable */
4279 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4280 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4281 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4283 /* TDLS peers cannot be added */
4284 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4285 info->attrs[NL80211_ATTR_PEER_AID])
4287 /* but don't bother the driver with it */
4288 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4290 /* allow authenticated/associated only if driver handles it */
4291 if (!(rdev->wiphy.features &
4292 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4293 params.sta_flags_mask &
4294 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4295 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4298 /* must be last in here for error handling */
4299 params.vlan = get_vlan(info, rdev);
4300 if (IS_ERR(params.vlan))
4301 return PTR_ERR(params.vlan);
4303 case NL80211_IFTYPE_MESH_POINT:
4304 /* ignore uAPSD data */
4305 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4307 /* associated is disallowed */
4308 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4310 /* TDLS peers cannot be added */
4311 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4312 info->attrs[NL80211_ATTR_PEER_AID])
4315 case NL80211_IFTYPE_STATION:
4316 case NL80211_IFTYPE_P2P_CLIENT:
4317 /* ignore uAPSD data */
4318 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4320 /* these are disallowed */
4321 if (params.sta_flags_mask &
4322 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4323 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4325 /* Only TDLS peers can be added */
4326 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4328 /* Can only add if TDLS ... */
4329 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4331 /* ... with external setup is supported */
4332 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4335 * Older wpa_supplicant versions always mark the TDLS peer
4336 * as authorized, but it shouldn't yet be.
4338 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4344 /* be aware of params.vlan when changing code here */
4346 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4349 dev_put(params.vlan);
4353 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4356 struct net_device *dev = info->user_ptr[1];
4357 u8 *mac_addr = NULL;
4359 if (info->attrs[NL80211_ATTR_MAC])
4360 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4362 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4363 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4368 if (!rdev->ops->del_station)
4371 return rdev_del_station(rdev, dev, mac_addr);
4374 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4375 int flags, struct net_device *dev,
4376 u8 *dst, u8 *next_hop,
4377 struct mpath_info *pinfo)
4380 struct nlattr *pinfoattr;
4382 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4386 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4387 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4388 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4389 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4390 goto nla_put_failure;
4392 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4394 goto nla_put_failure;
4395 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4396 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4398 goto nla_put_failure;
4399 if (((pinfo->filled & MPATH_INFO_SN) &&
4400 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4401 ((pinfo->filled & MPATH_INFO_METRIC) &&
4402 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4404 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4405 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4407 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4408 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4410 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4411 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4412 pinfo->discovery_timeout)) ||
4413 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4414 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4415 pinfo->discovery_retries)))
4416 goto nla_put_failure;
4418 nla_nest_end(msg, pinfoattr);
4420 return genlmsg_end(msg, hdr);
4423 genlmsg_cancel(msg, hdr);
4427 static int nl80211_dump_mpath(struct sk_buff *skb,
4428 struct netlink_callback *cb)
4430 struct mpath_info pinfo;
4431 struct cfg80211_registered_device *rdev;
4432 struct wireless_dev *wdev;
4434 u8 next_hop[ETH_ALEN];
4435 int path_idx = cb->args[2];
4438 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4442 if (!rdev->ops->dump_mpath) {
4447 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4453 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4460 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4461 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4462 wdev->netdev, dst, next_hop,
4471 cb->args[2] = path_idx;
4474 nl80211_finish_wdev_dump(rdev);
4478 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4482 struct net_device *dev = info->user_ptr[1];
4483 struct mpath_info pinfo;
4484 struct sk_buff *msg;
4486 u8 next_hop[ETH_ALEN];
4488 memset(&pinfo, 0, sizeof(pinfo));
4490 if (!info->attrs[NL80211_ATTR_MAC])
4493 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4495 if (!rdev->ops->get_mpath)
4498 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4501 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4505 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4509 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4510 dev, dst, next_hop, &pinfo) < 0) {
4515 return genlmsg_reply(msg, info);
4518 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4520 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4521 struct net_device *dev = info->user_ptr[1];
4523 u8 *next_hop = NULL;
4525 if (!info->attrs[NL80211_ATTR_MAC])
4528 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4531 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4532 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4534 if (!rdev->ops->change_mpath)
4537 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4540 return rdev_change_mpath(rdev, dev, dst, next_hop);
4543 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4546 struct net_device *dev = info->user_ptr[1];
4548 u8 *next_hop = NULL;
4550 if (!info->attrs[NL80211_ATTR_MAC])
4553 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4556 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4557 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4559 if (!rdev->ops->add_mpath)
4562 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4565 return rdev_add_mpath(rdev, dev, dst, next_hop);
4568 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4571 struct net_device *dev = info->user_ptr[1];
4574 if (info->attrs[NL80211_ATTR_MAC])
4575 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4577 if (!rdev->ops->del_mpath)
4580 return rdev_del_mpath(rdev, dev, dst);
4583 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4585 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4586 struct net_device *dev = info->user_ptr[1];
4587 struct wireless_dev *wdev = dev->ieee80211_ptr;
4588 struct bss_parameters params;
4591 memset(¶ms, 0, sizeof(params));
4592 /* default to not changing parameters */
4593 params.use_cts_prot = -1;
4594 params.use_short_preamble = -1;
4595 params.use_short_slot_time = -1;
4596 params.ap_isolate = -1;
4597 params.ht_opmode = -1;
4598 params.p2p_ctwindow = -1;
4599 params.p2p_opp_ps = -1;
4601 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4602 params.use_cts_prot =
4603 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4604 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4605 params.use_short_preamble =
4606 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4607 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4608 params.use_short_slot_time =
4609 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4610 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4611 params.basic_rates =
4612 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4613 params.basic_rates_len =
4614 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4616 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4617 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4618 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4620 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4622 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4623 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4625 params.p2p_ctwindow =
4626 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4627 if (params.p2p_ctwindow < 0)
4629 if (params.p2p_ctwindow != 0 &&
4630 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4634 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4637 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4639 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4642 params.p2p_opp_ps = tmp;
4643 if (params.p2p_opp_ps &&
4644 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4648 if (!rdev->ops->change_bss)
4651 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4652 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4656 err = rdev_change_bss(rdev, dev, ¶ms);
4662 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4663 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4664 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4665 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4666 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4667 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4668 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4669 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4672 static int parse_reg_rule(struct nlattr *tb[],
4673 struct ieee80211_reg_rule *reg_rule)
4675 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4676 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4678 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4680 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4682 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4684 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4686 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4689 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4691 freq_range->start_freq_khz =
4692 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4693 freq_range->end_freq_khz =
4694 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4695 freq_range->max_bandwidth_khz =
4696 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4698 power_rule->max_eirp =
4699 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4701 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4702 power_rule->max_antenna_gain =
4703 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4705 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4706 reg_rule->dfs_cac_ms =
4707 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4712 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4715 enum nl80211_user_reg_hint_type user_reg_hint_type;
4718 * You should only get this when cfg80211 hasn't yet initialized
4719 * completely when built-in to the kernel right between the time
4720 * window between nl80211_init() and regulatory_init(), if that is
4723 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4724 return -EINPROGRESS;
4726 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4727 user_reg_hint_type =
4728 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4730 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4732 switch (user_reg_hint_type) {
4733 case NL80211_USER_REG_HINT_USER:
4734 case NL80211_USER_REG_HINT_CELL_BASE:
4735 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4738 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4739 return regulatory_hint_user(data, user_reg_hint_type);
4740 case NL80211_USER_REG_HINT_INDOOR:
4741 return regulatory_hint_indoor_user();
4747 static int nl80211_get_mesh_config(struct sk_buff *skb,
4748 struct genl_info *info)
4750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4751 struct net_device *dev = info->user_ptr[1];
4752 struct wireless_dev *wdev = dev->ieee80211_ptr;
4753 struct mesh_config cur_params;
4756 struct nlattr *pinfoattr;
4757 struct sk_buff *msg;
4759 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4762 if (!rdev->ops->get_mesh_config)
4766 /* If not connected, get default parameters */
4767 if (!wdev->mesh_id_len)
4768 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4770 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4776 /* Draw up a netlink message to send back */
4777 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4780 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4781 NL80211_CMD_GET_MESH_CONFIG);
4784 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4786 goto nla_put_failure;
4787 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4788 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4789 cur_params.dot11MeshRetryTimeout) ||
4790 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4791 cur_params.dot11MeshConfirmTimeout) ||
4792 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4793 cur_params.dot11MeshHoldingTimeout) ||
4794 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4795 cur_params.dot11MeshMaxPeerLinks) ||
4796 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4797 cur_params.dot11MeshMaxRetries) ||
4798 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4799 cur_params.dot11MeshTTL) ||
4800 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4801 cur_params.element_ttl) ||
4802 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4803 cur_params.auto_open_plinks) ||
4804 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4805 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4806 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4807 cur_params.dot11MeshHWMPmaxPREQretries) ||
4808 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4809 cur_params.path_refresh_time) ||
4810 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4811 cur_params.min_discovery_timeout) ||
4812 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4813 cur_params.dot11MeshHWMPactivePathTimeout) ||
4814 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4815 cur_params.dot11MeshHWMPpreqMinInterval) ||
4816 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4817 cur_params.dot11MeshHWMPperrMinInterval) ||
4818 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4819 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4820 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4821 cur_params.dot11MeshHWMPRootMode) ||
4822 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4823 cur_params.dot11MeshHWMPRannInterval) ||
4824 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4825 cur_params.dot11MeshGateAnnouncementProtocol) ||
4826 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4827 cur_params.dot11MeshForwarding) ||
4828 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4829 cur_params.rssi_threshold) ||
4830 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4831 cur_params.ht_opmode) ||
4832 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4833 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4834 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4835 cur_params.dot11MeshHWMProotInterval) ||
4836 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4837 cur_params.dot11MeshHWMPconfirmationInterval) ||
4838 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4839 cur_params.power_mode) ||
4840 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4841 cur_params.dot11MeshAwakeWindowDuration) ||
4842 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4843 cur_params.plink_timeout))
4844 goto nla_put_failure;
4845 nla_nest_end(msg, pinfoattr);
4846 genlmsg_end(msg, hdr);
4847 return genlmsg_reply(msg, info);
4850 genlmsg_cancel(msg, hdr);
4856 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4857 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4858 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4859 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4860 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4861 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4862 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4863 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4864 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4865 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4866 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4867 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4868 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4869 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4870 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4871 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4872 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4873 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4874 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4875 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4876 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4877 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4878 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4879 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4880 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4881 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4882 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4883 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4884 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4887 static const struct nla_policy
4888 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4889 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4890 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4891 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4892 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4893 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4894 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4895 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4896 .len = IEEE80211_MAX_DATA_LEN },
4897 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4900 static int nl80211_parse_mesh_config(struct genl_info *info,
4901 struct mesh_config *cfg,
4904 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4907 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4910 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4912 cfg->param = fn(tb[attr]); \
4913 mask |= (1 << (attr - 1)); \
4918 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4920 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4921 info->attrs[NL80211_ATTR_MESH_CONFIG],
4922 nl80211_meshconf_params_policy))
4925 /* This makes sure that there aren't more than 32 mesh config
4926 * parameters (otherwise our bitfield scheme would not work.) */
4927 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4929 /* Fill in the params struct */
4930 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4931 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4933 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4934 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4936 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4937 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4939 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4940 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4942 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4943 mask, NL80211_MESHCONF_MAX_RETRIES,
4945 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4946 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4947 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4948 mask, NL80211_MESHCONF_ELEMENT_TTL,
4950 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4951 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4953 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4955 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4957 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4958 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4960 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4961 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4963 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4964 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4966 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4968 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4970 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4972 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4976 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4978 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4979 dot11MeshHWMPnetDiameterTraversalTime,
4981 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4984 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4986 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4987 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4989 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4990 dot11MeshGateAnnouncementProtocol, 0, 1,
4991 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4993 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4994 mask, NL80211_MESHCONF_FORWARDING,
4996 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
4997 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4999 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5000 mask, NL80211_MESHCONF_HT_OPMODE,
5002 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5004 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5006 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5007 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5009 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5010 dot11MeshHWMPconfirmationInterval,
5012 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5015 NL80211_MESH_POWER_ACTIVE,
5016 NL80211_MESH_POWER_MAX,
5017 mask, NL80211_MESHCONF_POWER_MODE,
5019 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5021 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5022 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5023 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5030 #undef FILL_IN_MESH_PARAM_IF_SET
5033 static int nl80211_parse_mesh_setup(struct genl_info *info,
5034 struct mesh_setup *setup)
5036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5037 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5039 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5041 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5042 info->attrs[NL80211_ATTR_MESH_SETUP],
5043 nl80211_mesh_setup_params_policy))
5046 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5047 setup->sync_method =
5048 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5049 IEEE80211_SYNC_METHOD_VENDOR :
5050 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5052 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5053 setup->path_sel_proto =
5054 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5055 IEEE80211_PATH_PROTOCOL_VENDOR :
5056 IEEE80211_PATH_PROTOCOL_HWMP;
5058 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5059 setup->path_metric =
5060 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5061 IEEE80211_PATH_METRIC_VENDOR :
5062 IEEE80211_PATH_METRIC_AIRTIME;
5065 if (tb[NL80211_MESH_SETUP_IE]) {
5066 struct nlattr *ieattr =
5067 tb[NL80211_MESH_SETUP_IE];
5068 if (!is_valid_ie_attr(ieattr))
5070 setup->ie = nla_data(ieattr);
5071 setup->ie_len = nla_len(ieattr);
5073 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5074 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5076 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5077 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5078 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5079 if (setup->is_secure)
5080 setup->user_mpm = true;
5082 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5083 if (!setup->user_mpm)
5086 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5092 static int nl80211_update_mesh_config(struct sk_buff *skb,
5093 struct genl_info *info)
5095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5096 struct net_device *dev = info->user_ptr[1];
5097 struct wireless_dev *wdev = dev->ieee80211_ptr;
5098 struct mesh_config cfg;
5102 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5105 if (!rdev->ops->update_mesh_config)
5108 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5113 if (!wdev->mesh_id_len)
5117 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5124 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5126 const struct ieee80211_regdomain *regdom;
5127 struct sk_buff *msg;
5129 struct nlattr *nl_reg_rules;
5132 if (!cfg80211_regdomain)
5135 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5139 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5140 NL80211_CMD_GET_REG);
5144 if (reg_last_request_cell_base() &&
5145 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5146 NL80211_USER_REG_HINT_CELL_BASE))
5147 goto nla_put_failure;
5150 regdom = rcu_dereference(cfg80211_regdomain);
5152 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5153 (regdom->dfs_region &&
5154 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5155 goto nla_put_failure_rcu;
5157 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5159 goto nla_put_failure_rcu;
5161 for (i = 0; i < regdom->n_reg_rules; i++) {
5162 struct nlattr *nl_reg_rule;
5163 const struct ieee80211_reg_rule *reg_rule;
5164 const struct ieee80211_freq_range *freq_range;
5165 const struct ieee80211_power_rule *power_rule;
5166 unsigned int max_bandwidth_khz;
5168 reg_rule = ®dom->reg_rules[i];
5169 freq_range = ®_rule->freq_range;
5170 power_rule = ®_rule->power_rule;
5172 nl_reg_rule = nla_nest_start(msg, i);
5174 goto nla_put_failure_rcu;
5176 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5177 if (!max_bandwidth_khz)
5178 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5181 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5183 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5184 freq_range->start_freq_khz) ||
5185 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5186 freq_range->end_freq_khz) ||
5187 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5188 max_bandwidth_khz) ||
5189 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5190 power_rule->max_antenna_gain) ||
5191 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5192 power_rule->max_eirp) ||
5193 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5194 reg_rule->dfs_cac_ms))
5195 goto nla_put_failure_rcu;
5197 nla_nest_end(msg, nl_reg_rule);
5201 nla_nest_end(msg, nl_reg_rules);
5203 genlmsg_end(msg, hdr);
5204 return genlmsg_reply(msg, info);
5206 nla_put_failure_rcu:
5209 genlmsg_cancel(msg, hdr);
5215 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5217 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5218 struct nlattr *nl_reg_rule;
5219 char *alpha2 = NULL;
5220 int rem_reg_rules = 0, r = 0;
5221 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5222 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5223 struct ieee80211_regdomain *rd = NULL;
5225 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5228 if (!info->attrs[NL80211_ATTR_REG_RULES])
5231 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5233 if (info->attrs[NL80211_ATTR_DFS_REGION])
5234 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5236 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5239 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5243 if (!reg_is_valid_request(alpha2))
5246 size_of_regd = sizeof(struct ieee80211_regdomain) +
5247 num_rules * sizeof(struct ieee80211_reg_rule);
5249 rd = kzalloc(size_of_regd, GFP_KERNEL);
5253 rd->n_reg_rules = num_rules;
5254 rd->alpha2[0] = alpha2[0];
5255 rd->alpha2[1] = alpha2[1];
5258 * Disable DFS master mode if the DFS region was
5259 * not supported or known on this kernel.
5261 if (reg_supported_dfs_region(dfs_region))
5262 rd->dfs_region = dfs_region;
5264 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5266 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5267 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5271 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5277 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5284 /* set_regdom took ownership */
5292 static int validate_scan_freqs(struct nlattr *freqs)
5294 struct nlattr *attr1, *attr2;
5295 int n_channels = 0, tmp1, tmp2;
5297 nla_for_each_nested(attr1, freqs, tmp1) {
5300 * Some hardware has a limited channel list for
5301 * scanning, and it is pretty much nonsensical
5302 * to scan for a channel twice, so disallow that
5303 * and don't require drivers to check that the
5304 * channel list they get isn't longer than what
5305 * they can scan, as long as they can scan all
5306 * the channels they registered at once.
5308 nla_for_each_nested(attr2, freqs, tmp2)
5309 if (attr1 != attr2 &&
5310 nla_get_u32(attr1) == nla_get_u32(attr2))
5317 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5320 struct wireless_dev *wdev = info->user_ptr[1];
5321 struct cfg80211_scan_request *request;
5322 struct nlattr *attr;
5323 struct wiphy *wiphy;
5324 int err, tmp, n_ssids = 0, n_channels, i;
5327 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5330 wiphy = &rdev->wiphy;
5332 if (!rdev->ops->scan)
5335 if (rdev->scan_req || rdev->scan_msg) {
5340 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5341 n_channels = validate_scan_freqs(
5342 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5348 n_channels = ieee80211_get_num_supported_channels(wiphy);
5351 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5352 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5355 if (n_ssids > wiphy->max_scan_ssids) {
5360 if (info->attrs[NL80211_ATTR_IE])
5361 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5365 if (ie_len > wiphy->max_scan_ie_len) {
5370 request = kzalloc(sizeof(*request)
5371 + sizeof(*request->ssids) * n_ssids
5372 + sizeof(*request->channels) * n_channels
5373 + ie_len, GFP_KERNEL);
5380 request->ssids = (void *)&request->channels[n_channels];
5381 request->n_ssids = n_ssids;
5384 request->ie = (void *)(request->ssids + n_ssids);
5386 request->ie = (void *)(request->channels + n_channels);
5390 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5391 /* user specified, bail out if channel not found */
5392 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5393 struct ieee80211_channel *chan;
5395 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5402 /* ignore disabled channels */
5403 if (chan->flags & IEEE80211_CHAN_DISABLED)
5406 request->channels[i] = chan;
5410 enum ieee80211_band band;
5413 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5415 if (!wiphy->bands[band])
5417 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5418 struct ieee80211_channel *chan;
5420 chan = &wiphy->bands[band]->channels[j];
5422 if (chan->flags & IEEE80211_CHAN_DISABLED)
5425 request->channels[i] = chan;
5436 request->n_channels = i;
5439 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5440 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5441 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5445 request->ssids[i].ssid_len = nla_len(attr);
5446 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5451 if (info->attrs[NL80211_ATTR_IE]) {
5452 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5453 memcpy((void *)request->ie,
5454 nla_data(info->attrs[NL80211_ATTR_IE]),
5458 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5459 if (wiphy->bands[i])
5461 (1 << wiphy->bands[i]->n_bitrates) - 1;
5463 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5464 nla_for_each_nested(attr,
5465 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5467 enum ieee80211_band band = nla_type(attr);
5469 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5474 if (!wiphy->bands[band])
5477 err = ieee80211_get_ratemask(wiphy->bands[band],
5480 &request->rates[band]);
5486 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5487 request->flags = nla_get_u32(
5488 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5489 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5490 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5497 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5499 request->wdev = wdev;
5500 request->wiphy = &rdev->wiphy;
5501 request->scan_start = jiffies;
5503 rdev->scan_req = request;
5504 err = rdev_scan(rdev, request);
5507 nl80211_send_scan_start(rdev, wdev);
5509 dev_hold(wdev->netdev);
5512 rdev->scan_req = NULL;
5520 static int nl80211_start_sched_scan(struct sk_buff *skb,
5521 struct genl_info *info)
5523 struct cfg80211_sched_scan_request *request;
5524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5525 struct net_device *dev = info->user_ptr[1];
5526 struct nlattr *attr;
5527 struct wiphy *wiphy;
5528 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5530 enum ieee80211_band band;
5532 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5533 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5535 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5536 !rdev->ops->sched_scan_start)
5539 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5542 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5545 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5549 wiphy = &rdev->wiphy;
5551 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5552 n_channels = validate_scan_freqs(
5553 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5557 n_channels = ieee80211_get_num_supported_channels(wiphy);
5560 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5561 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5565 if (n_ssids > wiphy->max_sched_scan_ssids)
5569 * First, count the number of 'real' matchsets. Due to an issue with
5570 * the old implementation, matchsets containing only the RSSI attribute
5571 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5572 * RSSI for all matchsets, rather than their own matchset for reporting
5573 * all APs with a strong RSSI. This is needed to be compatible with
5574 * older userspace that treated a matchset with only the RSSI as the
5575 * global RSSI for all other matchsets - if there are other matchsets.
5577 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5578 nla_for_each_nested(attr,
5579 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5581 struct nlattr *rssi;
5583 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5584 nla_data(attr), nla_len(attr),
5585 nl80211_match_policy);
5588 /* add other standalone attributes here */
5589 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5593 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5595 default_match_rssi = nla_get_s32(rssi);
5599 /* However, if there's no other matchset, add the RSSI one */
5600 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5603 if (n_match_sets > wiphy->max_match_sets)
5606 if (info->attrs[NL80211_ATTR_IE])
5607 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5611 if (ie_len > wiphy->max_sched_scan_ie_len)
5614 if (rdev->sched_scan_req) {
5619 request = kzalloc(sizeof(*request)
5620 + sizeof(*request->ssids) * n_ssids
5621 + sizeof(*request->match_sets) * n_match_sets
5622 + sizeof(*request->channels) * n_channels
5623 + ie_len, GFP_KERNEL);
5630 request->ssids = (void *)&request->channels[n_channels];
5631 request->n_ssids = n_ssids;
5634 request->ie = (void *)(request->ssids + n_ssids);
5636 request->ie = (void *)(request->channels + n_channels);
5641 request->match_sets = (void *)(request->ie + ie_len);
5642 else if (request->ssids)
5643 request->match_sets =
5644 (void *)(request->ssids + n_ssids);
5646 request->match_sets =
5647 (void *)(request->channels + n_channels);
5649 request->n_match_sets = n_match_sets;
5652 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5653 /* user specified, bail out if channel not found */
5654 nla_for_each_nested(attr,
5655 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5657 struct ieee80211_channel *chan;
5659 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5666 /* ignore disabled channels */
5667 if (chan->flags & IEEE80211_CHAN_DISABLED)
5670 request->channels[i] = chan;
5675 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5677 if (!wiphy->bands[band])
5679 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5680 struct ieee80211_channel *chan;
5682 chan = &wiphy->bands[band]->channels[j];
5684 if (chan->flags & IEEE80211_CHAN_DISABLED)
5687 request->channels[i] = chan;
5698 request->n_channels = i;
5701 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5702 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5704 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5708 request->ssids[i].ssid_len = nla_len(attr);
5709 memcpy(request->ssids[i].ssid, nla_data(attr),
5716 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5717 nla_for_each_nested(attr,
5718 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5720 struct nlattr *ssid, *rssi;
5722 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5723 nla_data(attr), nla_len(attr),
5724 nl80211_match_policy);
5727 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5729 if (WARN_ON(i >= n_match_sets)) {
5730 /* this indicates a programming error,
5731 * the loop above should have verified
5738 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5742 memcpy(request->match_sets[i].ssid.ssid,
5743 nla_data(ssid), nla_len(ssid));
5744 request->match_sets[i].ssid.ssid_len =
5746 /* special attribute - old implemenation w/a */
5747 request->match_sets[i].rssi_thold =
5749 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5751 request->match_sets[i].rssi_thold =
5757 /* there was no other matchset, so the RSSI one is alone */
5759 request->match_sets[0].rssi_thold = default_match_rssi;
5761 request->min_rssi_thold = INT_MAX;
5762 for (i = 0; i < n_match_sets; i++)
5763 request->min_rssi_thold =
5764 min(request->match_sets[i].rssi_thold,
5765 request->min_rssi_thold);
5767 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
5771 request->ie_len = ie_len;
5772 memcpy((void *)request->ie,
5773 nla_data(info->attrs[NL80211_ATTR_IE]),
5777 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5778 request->flags = nla_get_u32(
5779 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5780 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5781 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5788 request->wiphy = &rdev->wiphy;
5789 request->interval = interval;
5790 request->scan_start = jiffies;
5792 err = rdev_sched_scan_start(rdev, dev, request);
5794 rdev->sched_scan_req = request;
5795 nl80211_send_sched_scan(rdev, dev,
5796 NL80211_CMD_START_SCHED_SCAN);
5806 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5807 struct genl_info *info)
5809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5811 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5812 !rdev->ops->sched_scan_stop)
5815 return __cfg80211_stop_sched_scan(rdev, false);
5818 static int nl80211_start_radar_detection(struct sk_buff *skb,
5819 struct genl_info *info)
5821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5822 struct net_device *dev = info->user_ptr[1];
5823 struct wireless_dev *wdev = dev->ieee80211_ptr;
5824 struct cfg80211_chan_def chandef;
5825 enum nl80211_dfs_regions dfs_region;
5826 unsigned int cac_time_ms;
5829 dfs_region = reg_get_dfs_region(wdev->wiphy);
5830 if (dfs_region == NL80211_DFS_UNSET)
5833 err = nl80211_parse_chandef(rdev, info, &chandef);
5837 if (netif_carrier_ok(dev))
5840 if (wdev->cac_started)
5843 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
5851 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5854 if (!rdev->ops->start_radar_detection)
5857 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5858 if (WARN_ON(!cac_time_ms))
5859 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5861 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5864 wdev->chandef = chandef;
5865 wdev->cac_started = true;
5866 wdev->cac_start_time = jiffies;
5867 wdev->cac_time_ms = cac_time_ms;
5872 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5875 struct net_device *dev = info->user_ptr[1];
5876 struct wireless_dev *wdev = dev->ieee80211_ptr;
5877 struct cfg80211_csa_settings params;
5878 /* csa_attrs is defined static to avoid waste of stack size - this
5879 * function is called under RTNL lock, so this should not be a problem.
5881 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5882 u8 radar_detect_width = 0;
5884 bool need_new_beacon = false;
5887 if (!rdev->ops->channel_switch ||
5888 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5891 switch (dev->ieee80211_ptr->iftype) {
5892 case NL80211_IFTYPE_AP:
5893 case NL80211_IFTYPE_P2P_GO:
5894 need_new_beacon = true;
5896 /* useless if AP is not running */
5897 if (!wdev->beacon_interval)
5900 case NL80211_IFTYPE_ADHOC:
5901 if (!wdev->ssid_len)
5904 case NL80211_IFTYPE_MESH_POINT:
5905 if (!wdev->mesh_id_len)
5912 memset(¶ms, 0, sizeof(params));
5914 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5915 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5918 /* only important for AP, IBSS and mesh create IEs internally */
5919 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5922 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5924 if (!need_new_beacon)
5927 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5931 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5932 info->attrs[NL80211_ATTR_CSA_IES],
5937 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5941 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5944 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5945 if (!len || (len % sizeof(u16)))
5948 params.n_counter_offsets_beacon = len / sizeof(u16);
5949 if (rdev->wiphy.max_num_csa_counters &&
5950 (params.n_counter_offsets_beacon >
5951 rdev->wiphy.max_num_csa_counters))
5954 params.counter_offsets_beacon =
5955 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5957 /* sanity checks - counters should fit and be the same */
5958 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5959 u16 offset = params.counter_offsets_beacon[i];
5961 if (offset >= params.beacon_csa.tail_len)
5964 if (params.beacon_csa.tail[offset] != params.count)
5968 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5969 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5970 if (!len || (len % sizeof(u16)))
5973 params.n_counter_offsets_presp = len / sizeof(u16);
5974 if (rdev->wiphy.max_num_csa_counters &&
5975 (params.n_counter_offsets_beacon >
5976 rdev->wiphy.max_num_csa_counters))
5979 params.counter_offsets_presp =
5980 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5982 /* sanity checks - counters should fit and be the same */
5983 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5984 u16 offset = params.counter_offsets_presp[i];
5986 if (offset >= params.beacon_csa.probe_resp_len)
5989 if (params.beacon_csa.probe_resp[offset] !=
5996 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6000 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
6004 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6011 radar_detect_width = BIT(params.chandef.width);
6012 params.radar_required = true;
6015 /* TODO: I left this here for now. With channel switch, the
6016 * verification is a bit more complicated, because we only do
6017 * it later when the channel switch really happens.
6019 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
6020 params.chandef.chan,
6022 radar_detect_width);
6026 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6027 params.block_tx = true;
6030 err = rdev_channel_switch(rdev, dev, ¶ms);
6036 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6038 struct cfg80211_registered_device *rdev,
6039 struct wireless_dev *wdev,
6040 struct cfg80211_internal_bss *intbss)
6042 struct cfg80211_bss *res = &intbss->pub;
6043 const struct cfg80211_bss_ies *ies;
6048 ASSERT_WDEV_LOCK(wdev);
6050 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6051 NL80211_CMD_NEW_SCAN_RESULTS);
6055 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6057 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6058 goto nla_put_failure;
6060 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6061 goto nla_put_failure;
6062 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6063 goto nla_put_failure;
6065 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6067 goto nla_put_failure;
6068 if ((!is_zero_ether_addr(res->bssid) &&
6069 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6070 goto nla_put_failure;
6073 ies = rcu_dereference(res->ies);
6075 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6076 goto fail_unlock_rcu;
6078 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6079 ies->len, ies->data))
6080 goto fail_unlock_rcu;
6082 ies = rcu_dereference(res->beacon_ies);
6084 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6085 goto fail_unlock_rcu;
6086 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6087 ies->len, ies->data))
6088 goto fail_unlock_rcu;
6092 if (res->beacon_interval &&
6093 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6094 goto nla_put_failure;
6095 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6096 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6097 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6098 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6099 jiffies_to_msecs(jiffies - intbss->ts)))
6100 goto nla_put_failure;
6102 switch (rdev->wiphy.signal_type) {
6103 case CFG80211_SIGNAL_TYPE_MBM:
6104 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6105 goto nla_put_failure;
6107 case CFG80211_SIGNAL_TYPE_UNSPEC:
6108 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6109 goto nla_put_failure;
6115 switch (wdev->iftype) {
6116 case NL80211_IFTYPE_P2P_CLIENT:
6117 case NL80211_IFTYPE_STATION:
6118 if (intbss == wdev->current_bss &&
6119 nla_put_u32(msg, NL80211_BSS_STATUS,
6120 NL80211_BSS_STATUS_ASSOCIATED))
6121 goto nla_put_failure;
6123 case NL80211_IFTYPE_ADHOC:
6124 if (intbss == wdev->current_bss &&
6125 nla_put_u32(msg, NL80211_BSS_STATUS,
6126 NL80211_BSS_STATUS_IBSS_JOINED))
6127 goto nla_put_failure;
6133 nla_nest_end(msg, bss);
6135 return genlmsg_end(msg, hdr);
6140 genlmsg_cancel(msg, hdr);
6144 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6146 struct cfg80211_registered_device *rdev;
6147 struct cfg80211_internal_bss *scan;
6148 struct wireless_dev *wdev;
6149 int start = cb->args[2], idx = 0;
6152 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6157 spin_lock_bh(&rdev->bss_lock);
6158 cfg80211_bss_expire(rdev);
6160 cb->seq = rdev->bss_generation;
6162 list_for_each_entry(scan, &rdev->bss_list, list) {
6165 if (nl80211_send_bss(skb, cb,
6166 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6167 rdev, wdev, scan) < 0) {
6173 spin_unlock_bh(&rdev->bss_lock);
6177 nl80211_finish_wdev_dump(rdev);
6182 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6183 int flags, struct net_device *dev,
6184 struct survey_info *survey)
6187 struct nlattr *infoattr;
6189 hdr = nl80211hdr_put(msg, portid, seq, flags,
6190 NL80211_CMD_NEW_SURVEY_RESULTS);
6194 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6195 goto nla_put_failure;
6197 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6199 goto nla_put_failure;
6201 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6202 survey->channel->center_freq))
6203 goto nla_put_failure;
6205 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6206 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6207 goto nla_put_failure;
6208 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6209 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6210 goto nla_put_failure;
6211 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6212 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6213 survey->channel_time))
6214 goto nla_put_failure;
6215 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6216 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6217 survey->channel_time_busy))
6218 goto nla_put_failure;
6219 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6220 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6221 survey->channel_time_ext_busy))
6222 goto nla_put_failure;
6223 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6224 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6225 survey->channel_time_rx))
6226 goto nla_put_failure;
6227 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6228 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6229 survey->channel_time_tx))
6230 goto nla_put_failure;
6232 nla_nest_end(msg, infoattr);
6234 return genlmsg_end(msg, hdr);
6237 genlmsg_cancel(msg, hdr);
6241 static int nl80211_dump_survey(struct sk_buff *skb,
6242 struct netlink_callback *cb)
6244 struct survey_info survey;
6245 struct cfg80211_registered_device *rdev;
6246 struct wireless_dev *wdev;
6247 int survey_idx = cb->args[2];
6250 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6254 if (!wdev->netdev) {
6259 if (!rdev->ops->dump_survey) {
6265 struct ieee80211_channel *chan;
6267 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6273 /* Survey without a channel doesn't make sense */
6274 if (!survey.channel) {
6279 chan = ieee80211_get_channel(&rdev->wiphy,
6280 survey.channel->center_freq);
6281 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6286 if (nl80211_send_survey(skb,
6287 NETLINK_CB(cb->skb).portid,
6288 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6289 wdev->netdev, &survey) < 0)
6295 cb->args[2] = survey_idx;
6298 nl80211_finish_wdev_dump(rdev);
6302 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6304 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6305 NL80211_WPA_VERSION_2));
6308 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6311 struct net_device *dev = info->user_ptr[1];
6312 struct ieee80211_channel *chan;
6313 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6314 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6315 enum nl80211_auth_type auth_type;
6316 struct key_parse key;
6317 bool local_state_change;
6319 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6322 if (!info->attrs[NL80211_ATTR_MAC])
6325 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6328 if (!info->attrs[NL80211_ATTR_SSID])
6331 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6334 err = nl80211_parse_key(info, &key);
6339 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6341 if (!key.p.key || !key.p.key_len)
6343 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6344 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6345 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6346 key.p.key_len != WLAN_KEY_LEN_WEP104))
6358 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6359 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6368 if (!rdev->ops->auth)
6371 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6372 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6375 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6376 chan = nl80211_get_valid_chan(&rdev->wiphy,
6377 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6381 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6382 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6384 if (info->attrs[NL80211_ATTR_IE]) {
6385 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6386 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6389 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6390 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6393 if (auth_type == NL80211_AUTHTYPE_SAE &&
6394 !info->attrs[NL80211_ATTR_SAE_DATA])
6397 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6398 if (auth_type != NL80211_AUTHTYPE_SAE)
6400 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6401 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6402 /* need to include at least Auth Transaction and Status Code */
6403 if (sae_data_len < 4)
6407 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6410 * Since we no longer track auth state, ignore
6411 * requests to only change local state.
6413 if (local_state_change)
6416 wdev_lock(dev->ieee80211_ptr);
6417 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6418 ssid, ssid_len, ie, ie_len,
6419 key.p.key, key.p.key_len, key.idx,
6420 sae_data, sae_data_len);
6421 wdev_unlock(dev->ieee80211_ptr);
6425 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6426 struct genl_info *info,
6427 struct cfg80211_crypto_settings *settings,
6430 memset(settings, 0, sizeof(*settings));
6432 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6434 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6436 proto = nla_get_u16(
6437 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6438 settings->control_port_ethertype = cpu_to_be16(proto);
6439 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6442 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6443 settings->control_port_no_encrypt = true;
6445 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6447 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6451 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6452 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6453 settings->n_ciphers_pairwise = len / sizeof(u32);
6455 if (len % sizeof(u32))
6458 if (settings->n_ciphers_pairwise > cipher_limit)
6461 memcpy(settings->ciphers_pairwise, data, len);
6463 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6464 if (!cfg80211_supported_cipher_suite(
6466 settings->ciphers_pairwise[i]))
6470 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6471 settings->cipher_group =
6472 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6473 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6474 settings->cipher_group))
6478 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6479 settings->wpa_versions =
6480 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6481 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6485 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6489 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6490 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6491 settings->n_akm_suites = len / sizeof(u32);
6493 if (len % sizeof(u32))
6496 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6499 memcpy(settings->akm_suites, data, len);
6505 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6508 struct net_device *dev = info->user_ptr[1];
6509 struct ieee80211_channel *chan;
6510 struct cfg80211_assoc_request req = {};
6511 const u8 *bssid, *ssid;
6512 int err, ssid_len = 0;
6514 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6517 if (!info->attrs[NL80211_ATTR_MAC] ||
6518 !info->attrs[NL80211_ATTR_SSID] ||
6519 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6522 if (!rdev->ops->assoc)
6525 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6526 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6529 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6531 chan = nl80211_get_valid_chan(&rdev->wiphy,
6532 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6536 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6537 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6539 if (info->attrs[NL80211_ATTR_IE]) {
6540 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6541 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6544 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6545 enum nl80211_mfp mfp =
6546 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6547 if (mfp == NL80211_MFP_REQUIRED)
6549 else if (mfp != NL80211_MFP_NO)
6553 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6554 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6556 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6557 req.flags |= ASSOC_REQ_DISABLE_HT;
6559 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6560 memcpy(&req.ht_capa_mask,
6561 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6562 sizeof(req.ht_capa_mask));
6564 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6565 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6567 memcpy(&req.ht_capa,
6568 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6569 sizeof(req.ht_capa));
6572 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6573 req.flags |= ASSOC_REQ_DISABLE_VHT;
6575 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6576 memcpy(&req.vht_capa_mask,
6577 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6578 sizeof(req.vht_capa_mask));
6580 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6581 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6583 memcpy(&req.vht_capa,
6584 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6585 sizeof(req.vht_capa));
6588 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6590 wdev_lock(dev->ieee80211_ptr);
6591 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6592 ssid, ssid_len, &req);
6593 wdev_unlock(dev->ieee80211_ptr);
6599 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6602 struct net_device *dev = info->user_ptr[1];
6603 const u8 *ie = NULL, *bssid;
6604 int ie_len = 0, err;
6606 bool local_state_change;
6608 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6611 if (!info->attrs[NL80211_ATTR_MAC])
6614 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6617 if (!rdev->ops->deauth)
6620 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6621 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6624 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6626 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6627 if (reason_code == 0) {
6628 /* Reason Code 0 is reserved */
6632 if (info->attrs[NL80211_ATTR_IE]) {
6633 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6634 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6637 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6639 wdev_lock(dev->ieee80211_ptr);
6640 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6641 local_state_change);
6642 wdev_unlock(dev->ieee80211_ptr);
6646 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6648 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6649 struct net_device *dev = info->user_ptr[1];
6650 const u8 *ie = NULL, *bssid;
6651 int ie_len = 0, err;
6653 bool local_state_change;
6655 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6658 if (!info->attrs[NL80211_ATTR_MAC])
6661 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6664 if (!rdev->ops->disassoc)
6667 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6668 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6671 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6673 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6674 if (reason_code == 0) {
6675 /* Reason Code 0 is reserved */
6679 if (info->attrs[NL80211_ATTR_IE]) {
6680 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6681 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6684 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6686 wdev_lock(dev->ieee80211_ptr);
6687 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6688 local_state_change);
6689 wdev_unlock(dev->ieee80211_ptr);
6694 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6695 int mcast_rate[IEEE80211_NUM_BANDS],
6698 struct wiphy *wiphy = &rdev->wiphy;
6702 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6703 struct ieee80211_supported_band *sband;
6705 sband = wiphy->bands[band];
6709 for (i = 0; i < sband->n_bitrates; i++) {
6710 if (sband->bitrates[i].bitrate == rateval) {
6711 mcast_rate[band] = i + 1;
6721 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6723 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6724 struct net_device *dev = info->user_ptr[1];
6725 struct cfg80211_ibss_params ibss;
6726 struct wiphy *wiphy;
6727 struct cfg80211_cached_keys *connkeys = NULL;
6730 memset(&ibss, 0, sizeof(ibss));
6732 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6735 if (!info->attrs[NL80211_ATTR_SSID] ||
6736 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6739 ibss.beacon_interval = 100;
6741 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6742 ibss.beacon_interval =
6743 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6744 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6748 if (!rdev->ops->join_ibss)
6751 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6754 wiphy = &rdev->wiphy;
6756 if (info->attrs[NL80211_ATTR_MAC]) {
6757 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6759 if (!is_valid_ether_addr(ibss.bssid))
6762 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6763 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6765 if (info->attrs[NL80211_ATTR_IE]) {
6766 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6767 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6770 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6774 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6775 NL80211_IFTYPE_ADHOC))
6778 switch (ibss.chandef.width) {
6779 case NL80211_CHAN_WIDTH_5:
6780 case NL80211_CHAN_WIDTH_10:
6781 case NL80211_CHAN_WIDTH_20_NOHT:
6783 case NL80211_CHAN_WIDTH_20:
6784 case NL80211_CHAN_WIDTH_40:
6785 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6791 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6792 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6794 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6796 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6798 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6799 struct ieee80211_supported_band *sband =
6800 wiphy->bands[ibss.chandef.chan->band];
6802 err = ieee80211_get_ratemask(sband, rates, n_rates,
6808 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6809 memcpy(&ibss.ht_capa_mask,
6810 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6811 sizeof(ibss.ht_capa_mask));
6813 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6814 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6816 memcpy(&ibss.ht_capa,
6817 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6818 sizeof(ibss.ht_capa));
6821 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6822 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6823 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6826 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6829 connkeys = nl80211_parse_connkeys(rdev,
6830 info->attrs[NL80211_ATTR_KEYS],
6832 if (IS_ERR(connkeys))
6833 return PTR_ERR(connkeys);
6835 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6843 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6845 ibss.userspace_handles_dfs =
6846 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6848 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6854 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6857 struct net_device *dev = info->user_ptr[1];
6859 if (!rdev->ops->leave_ibss)
6862 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6865 return cfg80211_leave_ibss(rdev, dev, false);
6868 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6871 struct net_device *dev = info->user_ptr[1];
6872 int mcast_rate[IEEE80211_NUM_BANDS];
6876 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6877 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6880 if (!rdev->ops->set_mcast_rate)
6883 memset(mcast_rate, 0, sizeof(mcast_rate));
6885 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6888 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6889 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6892 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6897 static struct sk_buff *
6898 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6899 int approxlen, u32 portid, u32 seq,
6900 enum nl80211_commands cmd,
6901 enum nl80211_attrs attr,
6902 const struct nl80211_vendor_cmd_info *info,
6905 struct sk_buff *skb;
6907 struct nlattr *data;
6909 skb = nlmsg_new(approxlen + 100, gfp);
6913 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6919 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6920 goto nla_put_failure;
6923 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6925 goto nla_put_failure;
6926 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6928 goto nla_put_failure;
6931 data = nla_nest_start(skb, attr);
6933 ((void **)skb->cb)[0] = rdev;
6934 ((void **)skb->cb)[1] = hdr;
6935 ((void **)skb->cb)[2] = data;
6944 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6945 enum nl80211_commands cmd,
6946 enum nl80211_attrs attr,
6947 int vendor_event_idx,
6948 int approxlen, gfp_t gfp)
6950 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6951 const struct nl80211_vendor_cmd_info *info;
6954 case NL80211_CMD_TESTMODE:
6955 if (WARN_ON(vendor_event_idx != -1))
6959 case NL80211_CMD_VENDOR:
6960 if (WARN_ON(vendor_event_idx < 0 ||
6961 vendor_event_idx >= wiphy->n_vendor_events))
6963 info = &wiphy->vendor_events[vendor_event_idx];
6970 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6971 cmd, attr, info, gfp);
6973 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6975 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6977 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6978 void *hdr = ((void **)skb->cb)[1];
6979 struct nlattr *data = ((void **)skb->cb)[2];
6980 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6982 nla_nest_end(skb, data);
6983 genlmsg_end(skb, hdr);
6985 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6986 mcgrp = NL80211_MCGRP_VENDOR;
6988 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6991 EXPORT_SYMBOL(__cfg80211_send_event_skb);
6993 #ifdef CONFIG_NL80211_TESTMODE
6994 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6997 struct wireless_dev *wdev =
6998 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7001 if (!rdev->ops->testmode_cmd)
7005 err = PTR_ERR(wdev);
7009 } else if (wdev->wiphy != &rdev->wiphy) {
7013 if (!info->attrs[NL80211_ATTR_TESTDATA])
7016 rdev->cur_cmd_info = info;
7017 err = rdev_testmode_cmd(rdev, wdev,
7018 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7019 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7020 rdev->cur_cmd_info = NULL;
7025 static int nl80211_testmode_dump(struct sk_buff *skb,
7026 struct netlink_callback *cb)
7028 struct cfg80211_registered_device *rdev;
7038 * 0 is a valid index, but not valid for args[0],
7039 * so we need to offset by 1.
7041 phy_idx = cb->args[0] - 1;
7043 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7044 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7049 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7050 nl80211_fam.attrbuf);
7052 err = PTR_ERR(rdev);
7055 phy_idx = rdev->wiphy_idx;
7058 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7060 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7064 data = nla_data((void *)cb->args[1]);
7065 data_len = nla_len((void *)cb->args[1]);
7068 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7074 if (!rdev->ops->testmode_dump) {
7080 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7081 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7082 NL80211_CMD_TESTMODE);
7083 struct nlattr *tmdata;
7088 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7089 genlmsg_cancel(skb, hdr);
7093 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7095 genlmsg_cancel(skb, hdr);
7098 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7099 nla_nest_end(skb, tmdata);
7101 if (err == -ENOBUFS || err == -ENOENT) {
7102 genlmsg_cancel(skb, hdr);
7105 genlmsg_cancel(skb, hdr);
7109 genlmsg_end(skb, hdr);
7114 cb->args[0] = phy_idx + 1;
7121 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7124 struct net_device *dev = info->user_ptr[1];
7125 struct cfg80211_connect_params connect;
7126 struct wiphy *wiphy;
7127 struct cfg80211_cached_keys *connkeys = NULL;
7130 memset(&connect, 0, sizeof(connect));
7132 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7135 if (!info->attrs[NL80211_ATTR_SSID] ||
7136 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7139 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7141 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7142 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7143 NL80211_CMD_CONNECT))
7146 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7148 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7150 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7151 NL80211_MAX_NR_CIPHER_SUITES);
7155 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7156 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7159 wiphy = &rdev->wiphy;
7161 connect.bg_scan_period = -1;
7162 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7163 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7164 connect.bg_scan_period =
7165 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7168 if (info->attrs[NL80211_ATTR_MAC])
7169 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7170 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7171 connect.bssid_hint =
7172 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7173 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7174 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7176 if (info->attrs[NL80211_ATTR_IE]) {
7177 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7178 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7181 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7182 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7183 if (connect.mfp != NL80211_MFP_REQUIRED &&
7184 connect.mfp != NL80211_MFP_NO)
7187 connect.mfp = NL80211_MFP_NO;
7190 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7191 connect.channel = nl80211_get_valid_chan(
7192 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7193 if (!connect.channel)
7195 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7196 connect.channel_hint = nl80211_get_valid_chan(
7197 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7198 if (!connect.channel_hint)
7202 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7203 connkeys = nl80211_parse_connkeys(rdev,
7204 info->attrs[NL80211_ATTR_KEYS], NULL);
7205 if (IS_ERR(connkeys))
7206 return PTR_ERR(connkeys);
7209 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7210 connect.flags |= ASSOC_REQ_DISABLE_HT;
7212 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7213 memcpy(&connect.ht_capa_mask,
7214 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7215 sizeof(connect.ht_capa_mask));
7217 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7218 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7222 memcpy(&connect.ht_capa,
7223 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7224 sizeof(connect.ht_capa));
7227 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7228 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7230 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7231 memcpy(&connect.vht_capa_mask,
7232 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7233 sizeof(connect.vht_capa_mask));
7235 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7236 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7240 memcpy(&connect.vht_capa,
7241 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7242 sizeof(connect.vht_capa));
7245 wdev_lock(dev->ieee80211_ptr);
7246 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7247 wdev_unlock(dev->ieee80211_ptr);
7253 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7255 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7256 struct net_device *dev = info->user_ptr[1];
7260 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7261 reason = WLAN_REASON_DEAUTH_LEAVING;
7263 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7268 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7269 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7272 wdev_lock(dev->ieee80211_ptr);
7273 ret = cfg80211_disconnect(rdev, dev, reason, true);
7274 wdev_unlock(dev->ieee80211_ptr);
7278 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7285 if (!info->attrs[NL80211_ATTR_PID])
7288 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7290 net = get_net_ns_by_pid(pid);
7292 return PTR_ERR(net);
7296 /* check if anything to do */
7297 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7298 err = cfg80211_switch_netns(rdev, net);
7304 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7307 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7308 struct cfg80211_pmksa *pmksa) = NULL;
7309 struct net_device *dev = info->user_ptr[1];
7310 struct cfg80211_pmksa pmksa;
7312 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7314 if (!info->attrs[NL80211_ATTR_MAC])
7317 if (!info->attrs[NL80211_ATTR_PMKID])
7320 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7321 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7324 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7327 switch (info->genlhdr->cmd) {
7328 case NL80211_CMD_SET_PMKSA:
7329 rdev_ops = rdev->ops->set_pmksa;
7331 case NL80211_CMD_DEL_PMKSA:
7332 rdev_ops = rdev->ops->del_pmksa;
7342 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7345 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7347 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7348 struct net_device *dev = info->user_ptr[1];
7350 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7351 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7354 if (!rdev->ops->flush_pmksa)
7357 return rdev_flush_pmksa(rdev, dev);
7360 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7363 struct net_device *dev = info->user_ptr[1];
7364 u8 action_code, dialog_token;
7365 u32 peer_capability = 0;
7369 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7370 !rdev->ops->tdls_mgmt)
7373 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7374 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7375 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7376 !info->attrs[NL80211_ATTR_IE] ||
7377 !info->attrs[NL80211_ATTR_MAC])
7380 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7381 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7382 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7383 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7384 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7386 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7388 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7389 dialog_token, status_code, peer_capability,
7390 nla_data(info->attrs[NL80211_ATTR_IE]),
7391 nla_len(info->attrs[NL80211_ATTR_IE]));
7394 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7396 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7397 struct net_device *dev = info->user_ptr[1];
7398 enum nl80211_tdls_operation operation;
7401 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7402 !rdev->ops->tdls_oper)
7405 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7406 !info->attrs[NL80211_ATTR_MAC])
7409 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7410 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7412 return rdev_tdls_oper(rdev, dev, peer, operation);
7415 static int nl80211_remain_on_channel(struct sk_buff *skb,
7416 struct genl_info *info)
7418 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7419 struct wireless_dev *wdev = info->user_ptr[1];
7420 struct cfg80211_chan_def chandef;
7421 struct sk_buff *msg;
7427 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7428 !info->attrs[NL80211_ATTR_DURATION])
7431 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7433 if (!rdev->ops->remain_on_channel ||
7434 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7438 * We should be on that channel for at least a minimum amount of
7439 * time (10ms) but no longer than the driver supports.
7441 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7442 duration > rdev->wiphy.max_remain_on_channel_duration)
7445 err = nl80211_parse_chandef(rdev, info, &chandef);
7449 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7453 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7454 NL80211_CMD_REMAIN_ON_CHANNEL);
7460 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7466 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7467 goto nla_put_failure;
7469 genlmsg_end(msg, hdr);
7471 return genlmsg_reply(msg, info);
7480 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7481 struct genl_info *info)
7483 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7484 struct wireless_dev *wdev = info->user_ptr[1];
7487 if (!info->attrs[NL80211_ATTR_COOKIE])
7490 if (!rdev->ops->cancel_remain_on_channel)
7493 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7495 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7498 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7499 u8 *rates, u8 rates_len)
7504 for (i = 0; i < rates_len; i++) {
7505 int rate = (rates[i] & 0x7f) * 5;
7507 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7508 struct ieee80211_rate *srate =
7509 &sband->bitrates[ridx];
7510 if (rate == srate->bitrate) {
7515 if (ridx == sband->n_bitrates)
7516 return 0; /* rate not found */
7522 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7523 u8 *rates, u8 rates_len,
7524 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7528 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7530 for (i = 0; i < rates_len; i++) {
7533 ridx = rates[i] / 8;
7534 rbit = BIT(rates[i] % 8);
7536 /* check validity */
7537 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7540 /* check availability */
7541 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7550 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7554 switch (vht_mcs_map) {
7555 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7557 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7560 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7563 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7573 static void vht_build_mcs_mask(u16 vht_mcs_map,
7574 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7578 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7579 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7584 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7585 struct nl80211_txrate_vht *txrate,
7586 u16 mcs[NL80211_VHT_NSS_MAX])
7588 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7589 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7592 if (!sband->vht_cap.vht_supported)
7595 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7597 /* Build vht_mcs_mask from VHT capabilities */
7598 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7600 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7601 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7602 mcs[i] = txrate->mcs[i];
7610 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7611 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7612 .len = NL80211_MAX_SUPP_RATES },
7613 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7614 .len = NL80211_MAX_SUPP_HT_RATES },
7615 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7616 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7619 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7620 struct genl_info *info)
7622 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7623 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7624 struct cfg80211_bitrate_mask mask;
7626 struct net_device *dev = info->user_ptr[1];
7627 struct nlattr *tx_rates;
7628 struct ieee80211_supported_band *sband;
7631 if (!rdev->ops->set_bitrate_mask)
7634 memset(&mask, 0, sizeof(mask));
7635 /* Default to all rates enabled */
7636 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7637 sband = rdev->wiphy.bands[i];
7642 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7643 memcpy(mask.control[i].ht_mcs,
7644 sband->ht_cap.mcs.rx_mask,
7645 sizeof(mask.control[i].ht_mcs));
7647 if (!sband->vht_cap.vht_supported)
7650 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7651 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7654 /* if no rates are given set it back to the defaults */
7655 if (!info->attrs[NL80211_ATTR_TX_RATES])
7659 * The nested attribute uses enum nl80211_band as the index. This maps
7660 * directly to the enum ieee80211_band values used in cfg80211.
7662 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7663 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7664 enum ieee80211_band band = nla_type(tx_rates);
7667 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7669 sband = rdev->wiphy.bands[band];
7672 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7673 nla_len(tx_rates), nl80211_txattr_policy);
7676 if (tb[NL80211_TXRATE_LEGACY]) {
7677 mask.control[band].legacy = rateset_to_mask(
7679 nla_data(tb[NL80211_TXRATE_LEGACY]),
7680 nla_len(tb[NL80211_TXRATE_LEGACY]));
7681 if ((mask.control[band].legacy == 0) &&
7682 nla_len(tb[NL80211_TXRATE_LEGACY]))
7685 if (tb[NL80211_TXRATE_HT]) {
7686 if (!ht_rateset_to_mask(
7688 nla_data(tb[NL80211_TXRATE_HT]),
7689 nla_len(tb[NL80211_TXRATE_HT]),
7690 mask.control[band].ht_mcs))
7693 if (tb[NL80211_TXRATE_VHT]) {
7694 if (!vht_set_mcs_mask(
7696 nla_data(tb[NL80211_TXRATE_VHT]),
7697 mask.control[band].vht_mcs))
7700 if (tb[NL80211_TXRATE_GI]) {
7701 mask.control[band].gi =
7702 nla_get_u8(tb[NL80211_TXRATE_GI]);
7703 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7707 if (mask.control[band].legacy == 0) {
7708 /* don't allow empty legacy rates if HT or VHT
7709 * are not even supported.
7711 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7712 rdev->wiphy.bands[band]->vht_cap.vht_supported))
7715 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7716 if (mask.control[band].ht_mcs[i])
7719 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7720 if (mask.control[band].vht_mcs[i])
7723 /* legacy and mcs rates may not be both empty */
7729 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7732 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7734 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7735 struct wireless_dev *wdev = info->user_ptr[1];
7736 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7738 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7741 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7742 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7744 switch (wdev->iftype) {
7745 case NL80211_IFTYPE_STATION:
7746 case NL80211_IFTYPE_ADHOC:
7747 case NL80211_IFTYPE_P2P_CLIENT:
7748 case NL80211_IFTYPE_AP:
7749 case NL80211_IFTYPE_AP_VLAN:
7750 case NL80211_IFTYPE_MESH_POINT:
7751 case NL80211_IFTYPE_P2P_GO:
7752 case NL80211_IFTYPE_P2P_DEVICE:
7758 /* not much point in registering if we can't reply */
7759 if (!rdev->ops->mgmt_tx)
7762 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7763 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7764 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7767 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7770 struct wireless_dev *wdev = info->user_ptr[1];
7771 struct cfg80211_chan_def chandef;
7775 struct sk_buff *msg = NULL;
7776 struct cfg80211_mgmt_tx_params params = {
7777 .dont_wait_for_ack =
7778 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7781 if (!info->attrs[NL80211_ATTR_FRAME])
7784 if (!rdev->ops->mgmt_tx)
7787 switch (wdev->iftype) {
7788 case NL80211_IFTYPE_P2P_DEVICE:
7789 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7791 case NL80211_IFTYPE_STATION:
7792 case NL80211_IFTYPE_ADHOC:
7793 case NL80211_IFTYPE_P2P_CLIENT:
7794 case NL80211_IFTYPE_AP:
7795 case NL80211_IFTYPE_AP_VLAN:
7796 case NL80211_IFTYPE_MESH_POINT:
7797 case NL80211_IFTYPE_P2P_GO:
7803 if (info->attrs[NL80211_ATTR_DURATION]) {
7804 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7806 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7809 * We should wait on the channel for at least a minimum amount
7810 * of time (10ms) but no longer than the driver supports.
7812 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7813 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7818 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7820 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7823 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7825 /* get the channel if any has been specified, otherwise pass NULL to
7826 * the driver. The latter will use the current one
7828 chandef.chan = NULL;
7829 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7830 err = nl80211_parse_chandef(rdev, info, &chandef);
7835 if (!chandef.chan && params.offchan)
7838 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7839 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7841 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7842 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7845 if (len % sizeof(u16))
7848 params.n_csa_offsets = len / sizeof(u16);
7849 params.csa_offsets =
7850 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7852 /* check that all the offsets fit the frame */
7853 for (i = 0; i < params.n_csa_offsets; i++) {
7854 if (params.csa_offsets[i] >= params.len)
7859 if (!params.dont_wait_for_ack) {
7860 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7864 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7872 params.chan = chandef.chan;
7873 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7878 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7879 goto nla_put_failure;
7881 genlmsg_end(msg, hdr);
7882 return genlmsg_reply(msg, info);
7894 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7896 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7897 struct wireless_dev *wdev = info->user_ptr[1];
7900 if (!info->attrs[NL80211_ATTR_COOKIE])
7903 if (!rdev->ops->mgmt_tx_cancel_wait)
7906 switch (wdev->iftype) {
7907 case NL80211_IFTYPE_STATION:
7908 case NL80211_IFTYPE_ADHOC:
7909 case NL80211_IFTYPE_P2P_CLIENT:
7910 case NL80211_IFTYPE_AP:
7911 case NL80211_IFTYPE_AP_VLAN:
7912 case NL80211_IFTYPE_P2P_GO:
7913 case NL80211_IFTYPE_P2P_DEVICE:
7919 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7921 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7924 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7927 struct wireless_dev *wdev;
7928 struct net_device *dev = info->user_ptr[1];
7933 if (!info->attrs[NL80211_ATTR_PS_STATE])
7936 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7938 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7941 wdev = dev->ieee80211_ptr;
7943 if (!rdev->ops->set_power_mgmt)
7946 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7948 if (state == wdev->ps)
7951 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7957 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7960 enum nl80211_ps_state ps_state;
7961 struct wireless_dev *wdev;
7962 struct net_device *dev = info->user_ptr[1];
7963 struct sk_buff *msg;
7967 wdev = dev->ieee80211_ptr;
7969 if (!rdev->ops->set_power_mgmt)
7972 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7976 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7977 NL80211_CMD_GET_POWER_SAVE);
7984 ps_state = NL80211_PS_ENABLED;
7986 ps_state = NL80211_PS_DISABLED;
7988 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7989 goto nla_put_failure;
7991 genlmsg_end(msg, hdr);
7992 return genlmsg_reply(msg, info);
8001 static const struct nla_policy
8002 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8003 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8004 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8005 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8006 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8007 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8008 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8011 static int nl80211_set_cqm_txe(struct genl_info *info,
8012 u32 rate, u32 pkts, u32 intvl)
8014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8015 struct net_device *dev = info->user_ptr[1];
8016 struct wireless_dev *wdev = dev->ieee80211_ptr;
8018 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8021 if (!rdev->ops->set_cqm_txe_config)
8024 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8025 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8028 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8031 static int nl80211_set_cqm_rssi(struct genl_info *info,
8032 s32 threshold, u32 hysteresis)
8034 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8035 struct net_device *dev = info->user_ptr[1];
8036 struct wireless_dev *wdev = dev->ieee80211_ptr;
8041 /* disabling - hysteresis should also be zero then */
8045 if (!rdev->ops->set_cqm_rssi_config)
8048 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8049 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8052 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8055 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8057 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8061 cqm = info->attrs[NL80211_ATTR_CQM];
8065 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8066 nl80211_attr_cqm_policy);
8070 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8071 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8072 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8073 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8075 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8078 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8079 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8080 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8081 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8082 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8083 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8085 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8091 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8094 struct net_device *dev = info->user_ptr[1];
8095 struct mesh_config cfg;
8096 struct mesh_setup setup;
8099 /* start with default */
8100 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8101 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8103 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8104 /* and parse parameters if given */
8105 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8110 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8111 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8114 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8115 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8117 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8118 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8119 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8122 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8123 setup.beacon_interval =
8124 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8125 if (setup.beacon_interval < 10 ||
8126 setup.beacon_interval > 10000)
8130 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8132 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8133 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8137 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8138 /* parse additional setup parameters if given */
8139 err = nl80211_parse_mesh_setup(info, &setup);
8145 cfg.auto_open_plinks = false;
8147 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8148 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8152 /* cfg80211_join_mesh() will sort it out */
8153 setup.chandef.chan = NULL;
8156 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8157 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8159 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8160 struct ieee80211_supported_band *sband;
8162 if (!setup.chandef.chan)
8165 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8167 err = ieee80211_get_ratemask(sband, rates, n_rates,
8168 &setup.basic_rates);
8173 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8176 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8178 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8179 struct net_device *dev = info->user_ptr[1];
8181 return cfg80211_leave_mesh(rdev, dev);
8185 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8186 struct cfg80211_registered_device *rdev)
8188 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8189 struct nlattr *nl_pats, *nl_pat;
8192 if (!wowlan->n_patterns)
8195 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8199 for (i = 0; i < wowlan->n_patterns; i++) {
8200 nl_pat = nla_nest_start(msg, i + 1);
8203 pat_len = wowlan->patterns[i].pattern_len;
8204 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8205 wowlan->patterns[i].mask) ||
8206 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8207 wowlan->patterns[i].pattern) ||
8208 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8209 wowlan->patterns[i].pkt_offset))
8211 nla_nest_end(msg, nl_pat);
8213 nla_nest_end(msg, nl_pats);
8218 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8219 struct cfg80211_wowlan_tcp *tcp)
8221 struct nlattr *nl_tcp;
8226 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8230 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8231 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8232 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8233 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8234 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8235 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8236 tcp->payload_len, tcp->payload) ||
8237 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8238 tcp->data_interval) ||
8239 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8240 tcp->wake_len, tcp->wake_data) ||
8241 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8242 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8245 if (tcp->payload_seq.len &&
8246 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8247 sizeof(tcp->payload_seq), &tcp->payload_seq))
8250 if (tcp->payload_tok.len &&
8251 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8252 sizeof(tcp->payload_tok) + tcp->tokens_size,
8256 nla_nest_end(msg, nl_tcp);
8261 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8264 struct sk_buff *msg;
8266 u32 size = NLMSG_DEFAULT_SIZE;
8268 if (!rdev->wiphy.wowlan)
8271 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8272 /* adjust size to have room for all the data */
8273 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8274 rdev->wiphy.wowlan_config->tcp->payload_len +
8275 rdev->wiphy.wowlan_config->tcp->wake_len +
8276 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8279 msg = nlmsg_new(size, GFP_KERNEL);
8283 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8284 NL80211_CMD_GET_WOWLAN);
8286 goto nla_put_failure;
8288 if (rdev->wiphy.wowlan_config) {
8289 struct nlattr *nl_wowlan;
8291 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8293 goto nla_put_failure;
8295 if ((rdev->wiphy.wowlan_config->any &&
8296 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8297 (rdev->wiphy.wowlan_config->disconnect &&
8298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8299 (rdev->wiphy.wowlan_config->magic_pkt &&
8300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8301 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8303 (rdev->wiphy.wowlan_config->eap_identity_req &&
8304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8305 (rdev->wiphy.wowlan_config->four_way_handshake &&
8306 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8307 (rdev->wiphy.wowlan_config->rfkill_release &&
8308 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8309 goto nla_put_failure;
8311 if (nl80211_send_wowlan_patterns(msg, rdev))
8312 goto nla_put_failure;
8314 if (nl80211_send_wowlan_tcp(msg,
8315 rdev->wiphy.wowlan_config->tcp))
8316 goto nla_put_failure;
8318 nla_nest_end(msg, nl_wowlan);
8321 genlmsg_end(msg, hdr);
8322 return genlmsg_reply(msg, info);
8329 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8330 struct nlattr *attr,
8331 struct cfg80211_wowlan *trig)
8333 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8334 struct cfg80211_wowlan_tcp *cfg;
8335 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8336 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8338 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8341 if (!rdev->wiphy.wowlan->tcp)
8344 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8345 nla_data(attr), nla_len(attr),
8346 nl80211_wowlan_tcp_policy);
8350 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8351 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8352 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8353 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8354 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8355 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8356 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8357 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8360 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8361 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8364 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8365 rdev->wiphy.wowlan->tcp->data_interval_max ||
8366 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8369 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8370 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8373 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8374 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8377 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8378 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8380 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8381 tokens_size = tokln - sizeof(*tok);
8383 if (!tok->len || tokens_size % tok->len)
8385 if (!rdev->wiphy.wowlan->tcp->tok)
8387 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8389 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8391 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8393 if (tok->offset + tok->len > data_size)
8397 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8398 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8399 if (!rdev->wiphy.wowlan->tcp->seq)
8401 if (seq->len == 0 || seq->len > 4)
8403 if (seq->len + seq->offset > data_size)
8407 size = sizeof(*cfg);
8409 size += wake_size + wake_mask_size;
8410 size += tokens_size;
8412 cfg = kzalloc(size, GFP_KERNEL);
8415 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8416 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8417 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8419 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8420 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8424 /* allocate a socket and port for it and use it */
8425 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8426 IPPROTO_TCP, &cfg->sock, 1);
8431 if (inet_csk_get_port(cfg->sock->sk, port)) {
8432 sock_release(cfg->sock);
8436 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8442 cfg->src_port = port;
8445 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8446 cfg->payload_len = data_size;
8447 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8448 memcpy((void *)cfg->payload,
8449 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8452 cfg->payload_seq = *seq;
8453 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8454 cfg->wake_len = wake_size;
8455 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8456 memcpy((void *)cfg->wake_data,
8457 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8459 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8460 data_size + wake_size;
8461 memcpy((void *)cfg->wake_mask,
8462 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8465 cfg->tokens_size = tokens_size;
8466 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8474 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8476 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8477 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8478 struct cfg80211_wowlan new_triggers = {};
8479 struct cfg80211_wowlan *ntrig;
8480 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8482 bool prev_enabled = rdev->wiphy.wowlan_config;
8487 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8488 cfg80211_rdev_free_wowlan(rdev);
8489 rdev->wiphy.wowlan_config = NULL;
8493 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8494 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8495 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8496 nl80211_wowlan_policy);
8500 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8501 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8503 new_triggers.any = true;
8506 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8507 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8509 new_triggers.disconnect = true;
8512 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8513 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8515 new_triggers.magic_pkt = true;
8518 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8521 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8522 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8524 new_triggers.gtk_rekey_failure = true;
8527 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8528 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8530 new_triggers.eap_identity_req = true;
8533 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8534 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8536 new_triggers.four_way_handshake = true;
8539 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8540 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8542 new_triggers.rfkill_release = true;
8545 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8548 int rem, pat_len, mask_len, pkt_offset;
8549 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8551 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8554 if (n_patterns > wowlan->n_patterns)
8557 new_triggers.patterns = kcalloc(n_patterns,
8558 sizeof(new_triggers.patterns[0]),
8560 if (!new_triggers.patterns)
8563 new_triggers.n_patterns = n_patterns;
8566 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8570 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8571 nla_len(pat), NULL);
8573 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8574 !pat_tb[NL80211_PKTPAT_PATTERN])
8576 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8577 mask_len = DIV_ROUND_UP(pat_len, 8);
8578 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8580 if (pat_len > wowlan->pattern_max_len ||
8581 pat_len < wowlan->pattern_min_len)
8584 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8587 pkt_offset = nla_get_u32(
8588 pat_tb[NL80211_PKTPAT_OFFSET]);
8589 if (pkt_offset > wowlan->max_pkt_offset)
8591 new_triggers.patterns[i].pkt_offset = pkt_offset;
8593 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8598 new_triggers.patterns[i].mask = mask_pat;
8599 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8601 mask_pat += mask_len;
8602 new_triggers.patterns[i].pattern = mask_pat;
8603 new_triggers.patterns[i].pattern_len = pat_len;
8605 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8611 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8612 err = nl80211_parse_wowlan_tcp(
8613 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8619 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8624 cfg80211_rdev_free_wowlan(rdev);
8625 rdev->wiphy.wowlan_config = ntrig;
8628 if (rdev->ops->set_wakeup &&
8629 prev_enabled != !!rdev->wiphy.wowlan_config)
8630 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8634 for (i = 0; i < new_triggers.n_patterns; i++)
8635 kfree(new_triggers.patterns[i].mask);
8636 kfree(new_triggers.patterns);
8637 if (new_triggers.tcp && new_triggers.tcp->sock)
8638 sock_release(new_triggers.tcp->sock);
8639 kfree(new_triggers.tcp);
8644 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8645 struct cfg80211_registered_device *rdev)
8647 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8649 struct cfg80211_coalesce_rules *rule;
8651 if (!rdev->coalesce->n_rules)
8654 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8658 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8659 nl_rule = nla_nest_start(msg, i + 1);
8663 rule = &rdev->coalesce->rules[i];
8664 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8668 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8672 nl_pats = nla_nest_start(msg,
8673 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8677 for (j = 0; j < rule->n_patterns; j++) {
8678 nl_pat = nla_nest_start(msg, j + 1);
8681 pat_len = rule->patterns[j].pattern_len;
8682 if (nla_put(msg, NL80211_PKTPAT_MASK,
8683 DIV_ROUND_UP(pat_len, 8),
8684 rule->patterns[j].mask) ||
8685 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8686 rule->patterns[j].pattern) ||
8687 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8688 rule->patterns[j].pkt_offset))
8690 nla_nest_end(msg, nl_pat);
8692 nla_nest_end(msg, nl_pats);
8693 nla_nest_end(msg, nl_rule);
8695 nla_nest_end(msg, nl_rules);
8700 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8702 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8703 struct sk_buff *msg;
8706 if (!rdev->wiphy.coalesce)
8709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8713 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8714 NL80211_CMD_GET_COALESCE);
8716 goto nla_put_failure;
8718 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8719 goto nla_put_failure;
8721 genlmsg_end(msg, hdr);
8722 return genlmsg_reply(msg, info);
8729 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8731 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8733 struct cfg80211_coalesce_rules *rule;
8738 for (i = 0; i < coalesce->n_rules; i++) {
8739 rule = &coalesce->rules[i];
8740 for (j = 0; j < rule->n_patterns; j++)
8741 kfree(rule->patterns[j].mask);
8742 kfree(rule->patterns);
8744 kfree(coalesce->rules);
8746 rdev->coalesce = NULL;
8749 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8750 struct nlattr *rule,
8751 struct cfg80211_coalesce_rules *new_rule)
8754 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8755 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8756 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8757 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8759 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8760 nla_len(rule), nl80211_coalesce_policy);
8764 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8766 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8767 if (new_rule->delay > coalesce->max_delay)
8770 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8771 new_rule->condition =
8772 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8773 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8774 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8777 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8780 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8783 if (n_patterns > coalesce->n_patterns)
8786 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8788 if (!new_rule->patterns)
8791 new_rule->n_patterns = n_patterns;
8794 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8798 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8799 nla_len(pat), NULL);
8800 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8801 !pat_tb[NL80211_PKTPAT_PATTERN])
8803 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8804 mask_len = DIV_ROUND_UP(pat_len, 8);
8805 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8807 if (pat_len > coalesce->pattern_max_len ||
8808 pat_len < coalesce->pattern_min_len)
8811 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8814 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8815 if (pkt_offset > coalesce->max_pkt_offset)
8817 new_rule->patterns[i].pkt_offset = pkt_offset;
8819 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8823 new_rule->patterns[i].mask = mask_pat;
8824 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8827 mask_pat += mask_len;
8828 new_rule->patterns[i].pattern = mask_pat;
8829 new_rule->patterns[i].pattern_len = pat_len;
8830 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8838 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8840 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8841 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8842 struct cfg80211_coalesce new_coalesce = {};
8843 struct cfg80211_coalesce *n_coalesce;
8844 int err, rem_rule, n_rules = 0, i, j;
8845 struct nlattr *rule;
8846 struct cfg80211_coalesce_rules *tmp_rule;
8848 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8851 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8852 cfg80211_rdev_free_coalesce(rdev);
8853 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8857 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8860 if (n_rules > coalesce->n_rules)
8863 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8865 if (!new_coalesce.rules)
8868 new_coalesce.n_rules = n_rules;
8871 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8873 err = nl80211_parse_coalesce_rule(rdev, rule,
8874 &new_coalesce.rules[i]);
8881 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8885 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8890 cfg80211_rdev_free_coalesce(rdev);
8891 rdev->coalesce = n_coalesce;
8895 for (i = 0; i < new_coalesce.n_rules; i++) {
8896 tmp_rule = &new_coalesce.rules[i];
8897 for (j = 0; j < tmp_rule->n_patterns; j++)
8898 kfree(tmp_rule->patterns[j].mask);
8899 kfree(tmp_rule->patterns);
8901 kfree(new_coalesce.rules);
8906 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8909 struct net_device *dev = info->user_ptr[1];
8910 struct wireless_dev *wdev = dev->ieee80211_ptr;
8911 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8912 struct cfg80211_gtk_rekey_data rekey_data;
8915 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8918 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8919 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8920 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8921 nl80211_rekey_policy);
8925 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8927 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8929 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8932 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8934 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8936 memcpy(rekey_data.replay_ctr,
8937 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8938 NL80211_REPLAY_CTR_LEN);
8941 if (!wdev->current_bss) {
8946 if (!rdev->ops->set_rekey_data) {
8951 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8957 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8958 struct genl_info *info)
8960 struct net_device *dev = info->user_ptr[1];
8961 struct wireless_dev *wdev = dev->ieee80211_ptr;
8963 if (wdev->iftype != NL80211_IFTYPE_AP &&
8964 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8967 if (wdev->ap_unexpected_nlportid)
8970 wdev->ap_unexpected_nlportid = info->snd_portid;
8974 static int nl80211_probe_client(struct sk_buff *skb,
8975 struct genl_info *info)
8977 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8978 struct net_device *dev = info->user_ptr[1];
8979 struct wireless_dev *wdev = dev->ieee80211_ptr;
8980 struct sk_buff *msg;
8986 if (wdev->iftype != NL80211_IFTYPE_AP &&
8987 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8990 if (!info->attrs[NL80211_ATTR_MAC])
8993 if (!rdev->ops->probe_client)
8996 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9000 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9001 NL80211_CMD_PROBE_CLIENT);
9007 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9009 err = rdev_probe_client(rdev, dev, addr, &cookie);
9013 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9014 goto nla_put_failure;
9016 genlmsg_end(msg, hdr);
9018 return genlmsg_reply(msg, info);
9027 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9030 struct cfg80211_beacon_registration *reg, *nreg;
9033 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9036 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9040 /* First, check if already registered. */
9041 spin_lock_bh(&rdev->beacon_registrations_lock);
9042 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9043 if (reg->nlportid == info->snd_portid) {
9048 /* Add it to the list */
9049 nreg->nlportid = info->snd_portid;
9050 list_add(&nreg->list, &rdev->beacon_registrations);
9052 spin_unlock_bh(&rdev->beacon_registrations_lock);
9056 spin_unlock_bh(&rdev->beacon_registrations_lock);
9061 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9064 struct wireless_dev *wdev = info->user_ptr[1];
9067 if (!rdev->ops->start_p2p_device)
9070 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9073 if (wdev->p2p_started)
9076 if (rfkill_blocked(rdev->rfkill))
9079 err = rdev_start_p2p_device(rdev, wdev);
9083 wdev->p2p_started = true;
9089 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9092 struct wireless_dev *wdev = info->user_ptr[1];
9094 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9097 if (!rdev->ops->stop_p2p_device)
9100 cfg80211_stop_p2p_device(rdev, wdev);
9105 static int nl80211_get_protocol_features(struct sk_buff *skb,
9106 struct genl_info *info)
9109 struct sk_buff *msg;
9111 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9115 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9116 NL80211_CMD_GET_PROTOCOL_FEATURES);
9118 goto nla_put_failure;
9120 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9121 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9122 goto nla_put_failure;
9124 genlmsg_end(msg, hdr);
9125 return genlmsg_reply(msg, info);
9132 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9134 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9135 struct cfg80211_update_ft_ies_params ft_params;
9136 struct net_device *dev = info->user_ptr[1];
9138 if (!rdev->ops->update_ft_ies)
9141 if (!info->attrs[NL80211_ATTR_MDID] ||
9142 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9145 memset(&ft_params, 0, sizeof(ft_params));
9146 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9147 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9148 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9150 return rdev_update_ft_ies(rdev, dev, &ft_params);
9153 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9154 struct genl_info *info)
9156 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9157 struct wireless_dev *wdev = info->user_ptr[1];
9158 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9162 if (!rdev->ops->crit_proto_start)
9165 if (WARN_ON(!rdev->ops->crit_proto_stop))
9168 if (rdev->crit_proto_nlportid)
9171 /* determine protocol if provided */
9172 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9173 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9175 if (proto >= NUM_NL80211_CRIT_PROTO)
9178 /* timeout must be provided */
9179 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9183 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9185 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9188 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9190 rdev->crit_proto_nlportid = info->snd_portid;
9195 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9196 struct genl_info *info)
9198 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9199 struct wireless_dev *wdev = info->user_ptr[1];
9201 if (!rdev->ops->crit_proto_stop)
9204 if (rdev->crit_proto_nlportid) {
9205 rdev->crit_proto_nlportid = 0;
9206 rdev_crit_proto_stop(rdev, wdev);
9211 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9213 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9214 struct wireless_dev *wdev =
9215 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9219 if (!rdev->wiphy.vendor_commands)
9223 err = PTR_ERR(wdev);
9227 } else if (wdev->wiphy != &rdev->wiphy) {
9231 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9232 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9235 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9236 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9237 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9238 const struct wiphy_vendor_command *vcmd;
9242 vcmd = &rdev->wiphy.vendor_commands[i];
9244 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9247 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9248 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9251 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9255 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9257 !netif_running(wdev->netdev))
9259 if (!wdev->netdev && !wdev->p2p_started)
9266 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9267 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9268 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9271 rdev->cur_cmd_info = info;
9272 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9274 rdev->cur_cmd_info = NULL;
9281 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9282 enum nl80211_commands cmd,
9283 enum nl80211_attrs attr,
9286 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9288 if (WARN_ON(!rdev->cur_cmd_info))
9291 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9292 rdev->cur_cmd_info->snd_portid,
9293 rdev->cur_cmd_info->snd_seq,
9294 cmd, attr, NULL, GFP_KERNEL);
9296 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9298 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9300 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9301 void *hdr = ((void **)skb->cb)[1];
9302 struct nlattr *data = ((void **)skb->cb)[2];
9304 if (WARN_ON(!rdev->cur_cmd_info)) {
9309 nla_nest_end(skb, data);
9310 genlmsg_end(skb, hdr);
9311 return genlmsg_reply(skb, rdev->cur_cmd_info);
9313 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9316 static int nl80211_set_qos_map(struct sk_buff *skb,
9317 struct genl_info *info)
9319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9320 struct cfg80211_qos_map *qos_map = NULL;
9321 struct net_device *dev = info->user_ptr[1];
9322 u8 *pos, len, num_des, des_len, des;
9325 if (!rdev->ops->set_qos_map)
9328 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9329 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9330 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9332 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9333 len > IEEE80211_QOS_MAP_LEN_MAX)
9336 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9340 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9343 sizeof(struct cfg80211_dscp_exception);
9344 memcpy(qos_map->dscp_exception, pos, des_len);
9345 qos_map->num_des = num_des;
9346 for (des = 0; des < num_des; des++) {
9347 if (qos_map->dscp_exception[des].up > 7) {
9354 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9357 wdev_lock(dev->ieee80211_ptr);
9358 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9360 ret = rdev_set_qos_map(rdev, dev, qos_map);
9361 wdev_unlock(dev->ieee80211_ptr);
9367 #define NL80211_FLAG_NEED_WIPHY 0x01
9368 #define NL80211_FLAG_NEED_NETDEV 0x02
9369 #define NL80211_FLAG_NEED_RTNL 0x04
9370 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9371 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9372 NL80211_FLAG_CHECK_NETDEV_UP)
9373 #define NL80211_FLAG_NEED_WDEV 0x10
9374 /* If a netdev is associated, it must be UP, P2P must be started */
9375 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9376 NL80211_FLAG_CHECK_NETDEV_UP)
9378 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9379 struct genl_info *info)
9381 struct cfg80211_registered_device *rdev;
9382 struct wireless_dev *wdev;
9383 struct net_device *dev;
9384 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9389 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9390 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9394 return PTR_ERR(rdev);
9396 info->user_ptr[0] = rdev;
9397 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9398 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9401 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9406 return PTR_ERR(wdev);
9410 rdev = wiphy_to_rdev(wdev->wiphy);
9412 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9419 info->user_ptr[1] = dev;
9421 info->user_ptr[1] = wdev;
9425 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9426 !netif_running(dev)) {
9433 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9434 if (!wdev->p2p_started) {
9441 info->user_ptr[0] = rdev;
9447 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
9448 struct genl_info *info)
9450 if (info->user_ptr[1]) {
9451 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9452 struct wireless_dev *wdev = info->user_ptr[1];
9455 dev_put(wdev->netdev);
9457 dev_put(info->user_ptr[1]);
9460 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9464 static const struct genl_ops nl80211_ops[] = {
9466 .cmd = NL80211_CMD_GET_WIPHY,
9467 .doit = nl80211_get_wiphy,
9468 .dumpit = nl80211_dump_wiphy,
9469 .done = nl80211_dump_wiphy_done,
9470 .policy = nl80211_policy,
9471 /* can be retrieved by unprivileged users */
9472 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9473 NL80211_FLAG_NEED_RTNL,
9476 .cmd = NL80211_CMD_SET_WIPHY,
9477 .doit = nl80211_set_wiphy,
9478 .policy = nl80211_policy,
9479 .flags = GENL_ADMIN_PERM,
9480 .internal_flags = NL80211_FLAG_NEED_RTNL,
9483 .cmd = NL80211_CMD_GET_INTERFACE,
9484 .doit = nl80211_get_interface,
9485 .dumpit = nl80211_dump_interface,
9486 .policy = nl80211_policy,
9487 /* can be retrieved by unprivileged users */
9488 .internal_flags = NL80211_FLAG_NEED_WDEV |
9489 NL80211_FLAG_NEED_RTNL,
9492 .cmd = NL80211_CMD_SET_INTERFACE,
9493 .doit = nl80211_set_interface,
9494 .policy = nl80211_policy,
9495 .flags = GENL_ADMIN_PERM,
9496 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9497 NL80211_FLAG_NEED_RTNL,
9500 .cmd = NL80211_CMD_NEW_INTERFACE,
9501 .doit = nl80211_new_interface,
9502 .policy = nl80211_policy,
9503 .flags = GENL_ADMIN_PERM,
9504 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9505 NL80211_FLAG_NEED_RTNL,
9508 .cmd = NL80211_CMD_DEL_INTERFACE,
9509 .doit = nl80211_del_interface,
9510 .policy = nl80211_policy,
9511 .flags = GENL_ADMIN_PERM,
9512 .internal_flags = NL80211_FLAG_NEED_WDEV |
9513 NL80211_FLAG_NEED_RTNL,
9516 .cmd = NL80211_CMD_GET_KEY,
9517 .doit = nl80211_get_key,
9518 .policy = nl80211_policy,
9519 .flags = GENL_ADMIN_PERM,
9520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9521 NL80211_FLAG_NEED_RTNL,
9524 .cmd = NL80211_CMD_SET_KEY,
9525 .doit = nl80211_set_key,
9526 .policy = nl80211_policy,
9527 .flags = GENL_ADMIN_PERM,
9528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9529 NL80211_FLAG_NEED_RTNL,
9532 .cmd = NL80211_CMD_NEW_KEY,
9533 .doit = nl80211_new_key,
9534 .policy = nl80211_policy,
9535 .flags = GENL_ADMIN_PERM,
9536 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9537 NL80211_FLAG_NEED_RTNL,
9540 .cmd = NL80211_CMD_DEL_KEY,
9541 .doit = nl80211_del_key,
9542 .policy = nl80211_policy,
9543 .flags = GENL_ADMIN_PERM,
9544 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9545 NL80211_FLAG_NEED_RTNL,
9548 .cmd = NL80211_CMD_SET_BEACON,
9549 .policy = nl80211_policy,
9550 .flags = GENL_ADMIN_PERM,
9551 .doit = nl80211_set_beacon,
9552 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9553 NL80211_FLAG_NEED_RTNL,
9556 .cmd = NL80211_CMD_START_AP,
9557 .policy = nl80211_policy,
9558 .flags = GENL_ADMIN_PERM,
9559 .doit = nl80211_start_ap,
9560 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9561 NL80211_FLAG_NEED_RTNL,
9564 .cmd = NL80211_CMD_STOP_AP,
9565 .policy = nl80211_policy,
9566 .flags = GENL_ADMIN_PERM,
9567 .doit = nl80211_stop_ap,
9568 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9569 NL80211_FLAG_NEED_RTNL,
9572 .cmd = NL80211_CMD_GET_STATION,
9573 .doit = nl80211_get_station,
9574 .dumpit = nl80211_dump_station,
9575 .policy = nl80211_policy,
9576 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9577 NL80211_FLAG_NEED_RTNL,
9580 .cmd = NL80211_CMD_SET_STATION,
9581 .doit = nl80211_set_station,
9582 .policy = nl80211_policy,
9583 .flags = GENL_ADMIN_PERM,
9584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9585 NL80211_FLAG_NEED_RTNL,
9588 .cmd = NL80211_CMD_NEW_STATION,
9589 .doit = nl80211_new_station,
9590 .policy = nl80211_policy,
9591 .flags = GENL_ADMIN_PERM,
9592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9593 NL80211_FLAG_NEED_RTNL,
9596 .cmd = NL80211_CMD_DEL_STATION,
9597 .doit = nl80211_del_station,
9598 .policy = nl80211_policy,
9599 .flags = GENL_ADMIN_PERM,
9600 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9601 NL80211_FLAG_NEED_RTNL,
9604 .cmd = NL80211_CMD_GET_MPATH,
9605 .doit = nl80211_get_mpath,
9606 .dumpit = nl80211_dump_mpath,
9607 .policy = nl80211_policy,
9608 .flags = GENL_ADMIN_PERM,
9609 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9610 NL80211_FLAG_NEED_RTNL,
9613 .cmd = NL80211_CMD_SET_MPATH,
9614 .doit = nl80211_set_mpath,
9615 .policy = nl80211_policy,
9616 .flags = GENL_ADMIN_PERM,
9617 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9618 NL80211_FLAG_NEED_RTNL,
9621 .cmd = NL80211_CMD_NEW_MPATH,
9622 .doit = nl80211_new_mpath,
9623 .policy = nl80211_policy,
9624 .flags = GENL_ADMIN_PERM,
9625 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9626 NL80211_FLAG_NEED_RTNL,
9629 .cmd = NL80211_CMD_DEL_MPATH,
9630 .doit = nl80211_del_mpath,
9631 .policy = nl80211_policy,
9632 .flags = GENL_ADMIN_PERM,
9633 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9634 NL80211_FLAG_NEED_RTNL,
9637 .cmd = NL80211_CMD_SET_BSS,
9638 .doit = nl80211_set_bss,
9639 .policy = nl80211_policy,
9640 .flags = GENL_ADMIN_PERM,
9641 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9642 NL80211_FLAG_NEED_RTNL,
9645 .cmd = NL80211_CMD_GET_REG,
9646 .doit = nl80211_get_reg,
9647 .policy = nl80211_policy,
9648 .internal_flags = NL80211_FLAG_NEED_RTNL,
9649 /* can be retrieved by unprivileged users */
9652 .cmd = NL80211_CMD_SET_REG,
9653 .doit = nl80211_set_reg,
9654 .policy = nl80211_policy,
9655 .flags = GENL_ADMIN_PERM,
9656 .internal_flags = NL80211_FLAG_NEED_RTNL,
9659 .cmd = NL80211_CMD_REQ_SET_REG,
9660 .doit = nl80211_req_set_reg,
9661 .policy = nl80211_policy,
9662 .flags = GENL_ADMIN_PERM,
9665 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9666 .doit = nl80211_get_mesh_config,
9667 .policy = nl80211_policy,
9668 /* can be retrieved by unprivileged users */
9669 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9670 NL80211_FLAG_NEED_RTNL,
9673 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9674 .doit = nl80211_update_mesh_config,
9675 .policy = nl80211_policy,
9676 .flags = GENL_ADMIN_PERM,
9677 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9678 NL80211_FLAG_NEED_RTNL,
9681 .cmd = NL80211_CMD_TRIGGER_SCAN,
9682 .doit = nl80211_trigger_scan,
9683 .policy = nl80211_policy,
9684 .flags = GENL_ADMIN_PERM,
9685 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9686 NL80211_FLAG_NEED_RTNL,
9689 .cmd = NL80211_CMD_GET_SCAN,
9690 .policy = nl80211_policy,
9691 .dumpit = nl80211_dump_scan,
9694 .cmd = NL80211_CMD_START_SCHED_SCAN,
9695 .doit = nl80211_start_sched_scan,
9696 .policy = nl80211_policy,
9697 .flags = GENL_ADMIN_PERM,
9698 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9699 NL80211_FLAG_NEED_RTNL,
9702 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9703 .doit = nl80211_stop_sched_scan,
9704 .policy = nl80211_policy,
9705 .flags = GENL_ADMIN_PERM,
9706 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9707 NL80211_FLAG_NEED_RTNL,
9710 .cmd = NL80211_CMD_AUTHENTICATE,
9711 .doit = nl80211_authenticate,
9712 .policy = nl80211_policy,
9713 .flags = GENL_ADMIN_PERM,
9714 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9715 NL80211_FLAG_NEED_RTNL,
9718 .cmd = NL80211_CMD_ASSOCIATE,
9719 .doit = nl80211_associate,
9720 .policy = nl80211_policy,
9721 .flags = GENL_ADMIN_PERM,
9722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9723 NL80211_FLAG_NEED_RTNL,
9726 .cmd = NL80211_CMD_DEAUTHENTICATE,
9727 .doit = nl80211_deauthenticate,
9728 .policy = nl80211_policy,
9729 .flags = GENL_ADMIN_PERM,
9730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9731 NL80211_FLAG_NEED_RTNL,
9734 .cmd = NL80211_CMD_DISASSOCIATE,
9735 .doit = nl80211_disassociate,
9736 .policy = nl80211_policy,
9737 .flags = GENL_ADMIN_PERM,
9738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9739 NL80211_FLAG_NEED_RTNL,
9742 .cmd = NL80211_CMD_JOIN_IBSS,
9743 .doit = nl80211_join_ibss,
9744 .policy = nl80211_policy,
9745 .flags = GENL_ADMIN_PERM,
9746 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9747 NL80211_FLAG_NEED_RTNL,
9750 .cmd = NL80211_CMD_LEAVE_IBSS,
9751 .doit = nl80211_leave_ibss,
9752 .policy = nl80211_policy,
9753 .flags = GENL_ADMIN_PERM,
9754 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9755 NL80211_FLAG_NEED_RTNL,
9757 #ifdef CONFIG_NL80211_TESTMODE
9759 .cmd = NL80211_CMD_TESTMODE,
9760 .doit = nl80211_testmode_do,
9761 .dumpit = nl80211_testmode_dump,
9762 .policy = nl80211_policy,
9763 .flags = GENL_ADMIN_PERM,
9764 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9765 NL80211_FLAG_NEED_RTNL,
9769 .cmd = NL80211_CMD_CONNECT,
9770 .doit = nl80211_connect,
9771 .policy = nl80211_policy,
9772 .flags = GENL_ADMIN_PERM,
9773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9774 NL80211_FLAG_NEED_RTNL,
9777 .cmd = NL80211_CMD_DISCONNECT,
9778 .doit = nl80211_disconnect,
9779 .policy = nl80211_policy,
9780 .flags = GENL_ADMIN_PERM,
9781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9782 NL80211_FLAG_NEED_RTNL,
9785 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9786 .doit = nl80211_wiphy_netns,
9787 .policy = nl80211_policy,
9788 .flags = GENL_ADMIN_PERM,
9789 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9790 NL80211_FLAG_NEED_RTNL,
9793 .cmd = NL80211_CMD_GET_SURVEY,
9794 .policy = nl80211_policy,
9795 .dumpit = nl80211_dump_survey,
9798 .cmd = NL80211_CMD_SET_PMKSA,
9799 .doit = nl80211_setdel_pmksa,
9800 .policy = nl80211_policy,
9801 .flags = GENL_ADMIN_PERM,
9802 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9803 NL80211_FLAG_NEED_RTNL,
9806 .cmd = NL80211_CMD_DEL_PMKSA,
9807 .doit = nl80211_setdel_pmksa,
9808 .policy = nl80211_policy,
9809 .flags = GENL_ADMIN_PERM,
9810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9811 NL80211_FLAG_NEED_RTNL,
9814 .cmd = NL80211_CMD_FLUSH_PMKSA,
9815 .doit = nl80211_flush_pmksa,
9816 .policy = nl80211_policy,
9817 .flags = GENL_ADMIN_PERM,
9818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9819 NL80211_FLAG_NEED_RTNL,
9822 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9823 .doit = nl80211_remain_on_channel,
9824 .policy = nl80211_policy,
9825 .flags = GENL_ADMIN_PERM,
9826 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9827 NL80211_FLAG_NEED_RTNL,
9830 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9831 .doit = nl80211_cancel_remain_on_channel,
9832 .policy = nl80211_policy,
9833 .flags = GENL_ADMIN_PERM,
9834 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9835 NL80211_FLAG_NEED_RTNL,
9838 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9839 .doit = nl80211_set_tx_bitrate_mask,
9840 .policy = nl80211_policy,
9841 .flags = GENL_ADMIN_PERM,
9842 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9843 NL80211_FLAG_NEED_RTNL,
9846 .cmd = NL80211_CMD_REGISTER_FRAME,
9847 .doit = nl80211_register_mgmt,
9848 .policy = nl80211_policy,
9849 .flags = GENL_ADMIN_PERM,
9850 .internal_flags = NL80211_FLAG_NEED_WDEV |
9851 NL80211_FLAG_NEED_RTNL,
9854 .cmd = NL80211_CMD_FRAME,
9855 .doit = nl80211_tx_mgmt,
9856 .policy = nl80211_policy,
9857 .flags = GENL_ADMIN_PERM,
9858 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9859 NL80211_FLAG_NEED_RTNL,
9862 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9863 .doit = nl80211_tx_mgmt_cancel_wait,
9864 .policy = nl80211_policy,
9865 .flags = GENL_ADMIN_PERM,
9866 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9867 NL80211_FLAG_NEED_RTNL,
9870 .cmd = NL80211_CMD_SET_POWER_SAVE,
9871 .doit = nl80211_set_power_save,
9872 .policy = nl80211_policy,
9873 .flags = GENL_ADMIN_PERM,
9874 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9875 NL80211_FLAG_NEED_RTNL,
9878 .cmd = NL80211_CMD_GET_POWER_SAVE,
9879 .doit = nl80211_get_power_save,
9880 .policy = nl80211_policy,
9881 /* can be retrieved by unprivileged users */
9882 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9883 NL80211_FLAG_NEED_RTNL,
9886 .cmd = NL80211_CMD_SET_CQM,
9887 .doit = nl80211_set_cqm,
9888 .policy = nl80211_policy,
9889 .flags = GENL_ADMIN_PERM,
9890 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9891 NL80211_FLAG_NEED_RTNL,
9894 .cmd = NL80211_CMD_SET_CHANNEL,
9895 .doit = nl80211_set_channel,
9896 .policy = nl80211_policy,
9897 .flags = GENL_ADMIN_PERM,
9898 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9899 NL80211_FLAG_NEED_RTNL,
9902 .cmd = NL80211_CMD_SET_WDS_PEER,
9903 .doit = nl80211_set_wds_peer,
9904 .policy = nl80211_policy,
9905 .flags = GENL_ADMIN_PERM,
9906 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9907 NL80211_FLAG_NEED_RTNL,
9910 .cmd = NL80211_CMD_JOIN_MESH,
9911 .doit = nl80211_join_mesh,
9912 .policy = nl80211_policy,
9913 .flags = GENL_ADMIN_PERM,
9914 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9915 NL80211_FLAG_NEED_RTNL,
9918 .cmd = NL80211_CMD_LEAVE_MESH,
9919 .doit = nl80211_leave_mesh,
9920 .policy = nl80211_policy,
9921 .flags = GENL_ADMIN_PERM,
9922 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9923 NL80211_FLAG_NEED_RTNL,
9927 .cmd = NL80211_CMD_GET_WOWLAN,
9928 .doit = nl80211_get_wowlan,
9929 .policy = nl80211_policy,
9930 /* can be retrieved by unprivileged users */
9931 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9932 NL80211_FLAG_NEED_RTNL,
9935 .cmd = NL80211_CMD_SET_WOWLAN,
9936 .doit = nl80211_set_wowlan,
9937 .policy = nl80211_policy,
9938 .flags = GENL_ADMIN_PERM,
9939 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9940 NL80211_FLAG_NEED_RTNL,
9944 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9945 .doit = nl80211_set_rekey_data,
9946 .policy = nl80211_policy,
9947 .flags = GENL_ADMIN_PERM,
9948 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9949 NL80211_FLAG_NEED_RTNL,
9952 .cmd = NL80211_CMD_TDLS_MGMT,
9953 .doit = nl80211_tdls_mgmt,
9954 .policy = nl80211_policy,
9955 .flags = GENL_ADMIN_PERM,
9956 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9957 NL80211_FLAG_NEED_RTNL,
9960 .cmd = NL80211_CMD_TDLS_OPER,
9961 .doit = nl80211_tdls_oper,
9962 .policy = nl80211_policy,
9963 .flags = GENL_ADMIN_PERM,
9964 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9965 NL80211_FLAG_NEED_RTNL,
9968 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9969 .doit = nl80211_register_unexpected_frame,
9970 .policy = nl80211_policy,
9971 .flags = GENL_ADMIN_PERM,
9972 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9973 NL80211_FLAG_NEED_RTNL,
9976 .cmd = NL80211_CMD_PROBE_CLIENT,
9977 .doit = nl80211_probe_client,
9978 .policy = nl80211_policy,
9979 .flags = GENL_ADMIN_PERM,
9980 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9981 NL80211_FLAG_NEED_RTNL,
9984 .cmd = NL80211_CMD_REGISTER_BEACONS,
9985 .doit = nl80211_register_beacons,
9986 .policy = nl80211_policy,
9987 .flags = GENL_ADMIN_PERM,
9988 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9989 NL80211_FLAG_NEED_RTNL,
9992 .cmd = NL80211_CMD_SET_NOACK_MAP,
9993 .doit = nl80211_set_noack_map,
9994 .policy = nl80211_policy,
9995 .flags = GENL_ADMIN_PERM,
9996 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9997 NL80211_FLAG_NEED_RTNL,
10000 .cmd = NL80211_CMD_START_P2P_DEVICE,
10001 .doit = nl80211_start_p2p_device,
10002 .policy = nl80211_policy,
10003 .flags = GENL_ADMIN_PERM,
10004 .internal_flags = NL80211_FLAG_NEED_WDEV |
10005 NL80211_FLAG_NEED_RTNL,
10008 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10009 .doit = nl80211_stop_p2p_device,
10010 .policy = nl80211_policy,
10011 .flags = GENL_ADMIN_PERM,
10012 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10013 NL80211_FLAG_NEED_RTNL,
10016 .cmd = NL80211_CMD_SET_MCAST_RATE,
10017 .doit = nl80211_set_mcast_rate,
10018 .policy = nl80211_policy,
10019 .flags = GENL_ADMIN_PERM,
10020 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10021 NL80211_FLAG_NEED_RTNL,
10024 .cmd = NL80211_CMD_SET_MAC_ACL,
10025 .doit = nl80211_set_mac_acl,
10026 .policy = nl80211_policy,
10027 .flags = GENL_ADMIN_PERM,
10028 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10029 NL80211_FLAG_NEED_RTNL,
10032 .cmd = NL80211_CMD_RADAR_DETECT,
10033 .doit = nl80211_start_radar_detection,
10034 .policy = nl80211_policy,
10035 .flags = GENL_ADMIN_PERM,
10036 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10037 NL80211_FLAG_NEED_RTNL,
10040 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10041 .doit = nl80211_get_protocol_features,
10042 .policy = nl80211_policy,
10045 .cmd = NL80211_CMD_UPDATE_FT_IES,
10046 .doit = nl80211_update_ft_ies,
10047 .policy = nl80211_policy,
10048 .flags = GENL_ADMIN_PERM,
10049 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10050 NL80211_FLAG_NEED_RTNL,
10053 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10054 .doit = nl80211_crit_protocol_start,
10055 .policy = nl80211_policy,
10056 .flags = GENL_ADMIN_PERM,
10057 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10058 NL80211_FLAG_NEED_RTNL,
10061 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10062 .doit = nl80211_crit_protocol_stop,
10063 .policy = nl80211_policy,
10064 .flags = GENL_ADMIN_PERM,
10065 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10066 NL80211_FLAG_NEED_RTNL,
10069 .cmd = NL80211_CMD_GET_COALESCE,
10070 .doit = nl80211_get_coalesce,
10071 .policy = nl80211_policy,
10072 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10073 NL80211_FLAG_NEED_RTNL,
10076 .cmd = NL80211_CMD_SET_COALESCE,
10077 .doit = nl80211_set_coalesce,
10078 .policy = nl80211_policy,
10079 .flags = GENL_ADMIN_PERM,
10080 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10081 NL80211_FLAG_NEED_RTNL,
10084 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10085 .doit = nl80211_channel_switch,
10086 .policy = nl80211_policy,
10087 .flags = GENL_ADMIN_PERM,
10088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10089 NL80211_FLAG_NEED_RTNL,
10092 .cmd = NL80211_CMD_VENDOR,
10093 .doit = nl80211_vendor_cmd,
10094 .policy = nl80211_policy,
10095 .flags = GENL_ADMIN_PERM,
10096 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10097 NL80211_FLAG_NEED_RTNL,
10100 .cmd = NL80211_CMD_SET_QOS_MAP,
10101 .doit = nl80211_set_qos_map,
10102 .policy = nl80211_policy,
10103 .flags = GENL_ADMIN_PERM,
10104 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10105 NL80211_FLAG_NEED_RTNL,
10109 /* notification functions */
10111 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10112 enum nl80211_commands cmd)
10114 struct sk_buff *msg;
10115 struct nl80211_dump_wiphy_state state = {};
10117 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10118 cmd != NL80211_CMD_DEL_WIPHY);
10120 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10124 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
10129 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10130 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10133 static int nl80211_add_scan_req(struct sk_buff *msg,
10134 struct cfg80211_registered_device *rdev)
10136 struct cfg80211_scan_request *req = rdev->scan_req;
10137 struct nlattr *nest;
10143 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10145 goto nla_put_failure;
10146 for (i = 0; i < req->n_ssids; i++) {
10147 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10148 goto nla_put_failure;
10150 nla_nest_end(msg, nest);
10152 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10154 goto nla_put_failure;
10155 for (i = 0; i < req->n_channels; i++) {
10156 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10157 goto nla_put_failure;
10159 nla_nest_end(msg, nest);
10162 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10163 goto nla_put_failure;
10166 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10167 goto nla_put_failure;
10174 static int nl80211_send_scan_msg(struct sk_buff *msg,
10175 struct cfg80211_registered_device *rdev,
10176 struct wireless_dev *wdev,
10177 u32 portid, u32 seq, int flags,
10182 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10186 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10187 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10188 wdev->netdev->ifindex)) ||
10189 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10190 goto nla_put_failure;
10192 /* ignore errors and send incomplete event anyway */
10193 nl80211_add_scan_req(msg, rdev);
10195 return genlmsg_end(msg, hdr);
10198 genlmsg_cancel(msg, hdr);
10203 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10204 struct cfg80211_registered_device *rdev,
10205 struct net_device *netdev,
10206 u32 portid, u32 seq, int flags, u32 cmd)
10210 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10214 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10215 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10216 goto nla_put_failure;
10218 return genlmsg_end(msg, hdr);
10221 genlmsg_cancel(msg, hdr);
10225 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10226 struct wireless_dev *wdev)
10228 struct sk_buff *msg;
10230 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10234 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10235 NL80211_CMD_TRIGGER_SCAN) < 0) {
10240 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10241 NL80211_MCGRP_SCAN, GFP_KERNEL);
10244 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10245 struct wireless_dev *wdev, bool aborted)
10247 struct sk_buff *msg;
10249 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10253 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10254 aborted ? NL80211_CMD_SCAN_ABORTED :
10255 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10263 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10264 struct sk_buff *msg)
10269 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10270 NL80211_MCGRP_SCAN, GFP_KERNEL);
10273 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10274 struct net_device *netdev)
10276 struct sk_buff *msg;
10278 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10282 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10283 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10288 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10289 NL80211_MCGRP_SCAN, GFP_KERNEL);
10292 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10293 struct net_device *netdev, u32 cmd)
10295 struct sk_buff *msg;
10297 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10301 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10307 NL80211_MCGRP_SCAN, GFP_KERNEL);
10311 * This can happen on global regulatory changes or device specific settings
10312 * based on custom world regulatory domains.
10314 void nl80211_send_reg_change_event(struct regulatory_request *request)
10316 struct sk_buff *msg;
10319 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10323 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10329 /* Userspace can always count this one always being set */
10330 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10331 goto nla_put_failure;
10333 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10334 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10335 NL80211_REGDOM_TYPE_WORLD))
10336 goto nla_put_failure;
10337 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10338 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10339 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10340 goto nla_put_failure;
10341 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10342 request->intersect) {
10343 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10344 NL80211_REGDOM_TYPE_INTERSECTION))
10345 goto nla_put_failure;
10347 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10348 NL80211_REGDOM_TYPE_COUNTRY) ||
10349 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10351 goto nla_put_failure;
10354 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10355 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10356 goto nla_put_failure;
10358 genlmsg_end(msg, hdr);
10361 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10362 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10368 genlmsg_cancel(msg, hdr);
10372 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10373 struct net_device *netdev,
10374 const u8 *buf, size_t len,
10375 enum nl80211_commands cmd, gfp_t gfp)
10377 struct sk_buff *msg;
10380 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10384 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10390 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10391 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10392 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10393 goto nla_put_failure;
10395 genlmsg_end(msg, hdr);
10397 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10398 NL80211_MCGRP_MLME, gfp);
10402 genlmsg_cancel(msg, hdr);
10406 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10407 struct net_device *netdev, const u8 *buf,
10408 size_t len, gfp_t gfp)
10410 nl80211_send_mlme_event(rdev, netdev, buf, len,
10411 NL80211_CMD_AUTHENTICATE, gfp);
10414 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10415 struct net_device *netdev, const u8 *buf,
10416 size_t len, gfp_t gfp)
10418 nl80211_send_mlme_event(rdev, netdev, buf, len,
10419 NL80211_CMD_ASSOCIATE, gfp);
10422 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10423 struct net_device *netdev, const u8 *buf,
10424 size_t len, gfp_t gfp)
10426 nl80211_send_mlme_event(rdev, netdev, buf, len,
10427 NL80211_CMD_DEAUTHENTICATE, gfp);
10430 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10431 struct net_device *netdev, const u8 *buf,
10432 size_t len, gfp_t gfp)
10434 nl80211_send_mlme_event(rdev, netdev, buf, len,
10435 NL80211_CMD_DISASSOCIATE, gfp);
10438 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10441 struct wireless_dev *wdev = dev->ieee80211_ptr;
10442 struct wiphy *wiphy = wdev->wiphy;
10443 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10444 const struct ieee80211_mgmt *mgmt = (void *)buf;
10447 if (WARN_ON(len < 2))
10450 if (ieee80211_is_deauth(mgmt->frame_control))
10451 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10453 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10455 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10456 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
10458 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10460 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10461 struct net_device *netdev, int cmd,
10462 const u8 *addr, gfp_t gfp)
10464 struct sk_buff *msg;
10467 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10471 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10477 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10478 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10479 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10480 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10481 goto nla_put_failure;
10483 genlmsg_end(msg, hdr);
10485 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10486 NL80211_MCGRP_MLME, gfp);
10490 genlmsg_cancel(msg, hdr);
10494 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10495 struct net_device *netdev, const u8 *addr,
10498 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10502 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10503 struct net_device *netdev, const u8 *addr,
10506 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10510 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10511 struct net_device *netdev, const u8 *bssid,
10512 const u8 *req_ie, size_t req_ie_len,
10513 const u8 *resp_ie, size_t resp_ie_len,
10514 u16 status, gfp_t gfp)
10516 struct sk_buff *msg;
10519 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10523 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10529 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10530 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10531 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10532 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10534 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10536 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10537 goto nla_put_failure;
10539 genlmsg_end(msg, hdr);
10541 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10542 NL80211_MCGRP_MLME, gfp);
10546 genlmsg_cancel(msg, hdr);
10551 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10552 struct net_device *netdev, const u8 *bssid,
10553 const u8 *req_ie, size_t req_ie_len,
10554 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10556 struct sk_buff *msg;
10559 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10563 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10571 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10573 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10575 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10576 goto nla_put_failure;
10578 genlmsg_end(msg, hdr);
10580 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10581 NL80211_MCGRP_MLME, gfp);
10585 genlmsg_cancel(msg, hdr);
10590 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10591 struct net_device *netdev, u16 reason,
10592 const u8 *ie, size_t ie_len, bool from_ap)
10594 struct sk_buff *msg;
10597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10601 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10607 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10608 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10609 (from_ap && reason &&
10610 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10612 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10613 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10614 goto nla_put_failure;
10616 genlmsg_end(msg, hdr);
10618 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10619 NL80211_MCGRP_MLME, GFP_KERNEL);
10623 genlmsg_cancel(msg, hdr);
10628 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10629 struct net_device *netdev, const u8 *bssid,
10632 struct sk_buff *msg;
10635 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10639 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10645 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10646 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10647 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10648 goto nla_put_failure;
10650 genlmsg_end(msg, hdr);
10652 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10653 NL80211_MCGRP_MLME, gfp);
10657 genlmsg_cancel(msg, hdr);
10661 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10662 const u8* ie, u8 ie_len, gfp_t gfp)
10664 struct wireless_dev *wdev = dev->ieee80211_ptr;
10665 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
10666 struct sk_buff *msg;
10669 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10672 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10674 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10678 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10684 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10685 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10686 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10688 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10689 goto nla_put_failure;
10691 genlmsg_end(msg, hdr);
10693 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10694 NL80211_MCGRP_MLME, gfp);
10698 genlmsg_cancel(msg, hdr);
10701 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10703 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10704 struct net_device *netdev, const u8 *addr,
10705 enum nl80211_key_type key_type, int key_id,
10706 const u8 *tsc, gfp_t gfp)
10708 struct sk_buff *msg;
10711 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10715 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10721 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10722 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10723 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10724 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10726 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10727 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10728 goto nla_put_failure;
10730 genlmsg_end(msg, hdr);
10732 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10733 NL80211_MCGRP_MLME, gfp);
10737 genlmsg_cancel(msg, hdr);
10741 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10742 struct ieee80211_channel *channel_before,
10743 struct ieee80211_channel *channel_after)
10745 struct sk_buff *msg;
10747 struct nlattr *nl_freq;
10749 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10753 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10760 * Since we are applying the beacon hint to a wiphy we know its
10761 * wiphy_idx is valid
10763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10764 goto nla_put_failure;
10767 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10769 goto nla_put_failure;
10770 if (nl80211_msg_put_channel(msg, channel_before, false))
10771 goto nla_put_failure;
10772 nla_nest_end(msg, nl_freq);
10775 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10777 goto nla_put_failure;
10778 if (nl80211_msg_put_channel(msg, channel_after, false))
10779 goto nla_put_failure;
10780 nla_nest_end(msg, nl_freq);
10782 genlmsg_end(msg, hdr);
10785 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10786 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10792 genlmsg_cancel(msg, hdr);
10796 static void nl80211_send_remain_on_chan_event(
10797 int cmd, struct cfg80211_registered_device *rdev,
10798 struct wireless_dev *wdev, u64 cookie,
10799 struct ieee80211_channel *chan,
10800 unsigned int duration, gfp_t gfp)
10802 struct sk_buff *msg;
10805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10809 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10815 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10816 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10817 wdev->netdev->ifindex)) ||
10818 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10819 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
10820 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10821 NL80211_CHAN_NO_HT) ||
10822 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10823 goto nla_put_failure;
10825 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10826 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10827 goto nla_put_failure;
10829 genlmsg_end(msg, hdr);
10831 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10832 NL80211_MCGRP_MLME, gfp);
10836 genlmsg_cancel(msg, hdr);
10840 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10841 struct ieee80211_channel *chan,
10842 unsigned int duration, gfp_t gfp)
10844 struct wiphy *wiphy = wdev->wiphy;
10845 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10847 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
10848 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
10849 rdev, wdev, cookie, chan,
10852 EXPORT_SYMBOL(cfg80211_ready_on_channel);
10854 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10855 struct ieee80211_channel *chan,
10858 struct wiphy *wiphy = wdev->wiphy;
10859 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10861 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
10862 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10863 rdev, wdev, cookie, chan, 0, gfp);
10865 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
10867 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10868 struct station_info *sinfo, gfp_t gfp)
10870 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10871 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10872 struct sk_buff *msg;
10874 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10876 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10880 if (nl80211_send_station(msg, 0, 0, 0,
10881 rdev, dev, mac_addr, sinfo) < 0) {
10886 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10887 NL80211_MCGRP_MLME, gfp);
10889 EXPORT_SYMBOL(cfg80211_new_sta);
10891 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
10893 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10894 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10895 struct sk_buff *msg;
10898 trace_cfg80211_del_sta(dev, mac_addr);
10900 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10904 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10910 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10911 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10912 goto nla_put_failure;
10914 genlmsg_end(msg, hdr);
10916 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10917 NL80211_MCGRP_MLME, gfp);
10921 genlmsg_cancel(msg, hdr);
10924 EXPORT_SYMBOL(cfg80211_del_sta);
10926 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10927 enum nl80211_connect_failed_reason reason,
10930 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10931 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10932 struct sk_buff *msg;
10935 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10939 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10945 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10946 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10947 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10948 goto nla_put_failure;
10950 genlmsg_end(msg, hdr);
10952 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10953 NL80211_MCGRP_MLME, gfp);
10957 genlmsg_cancel(msg, hdr);
10960 EXPORT_SYMBOL(cfg80211_conn_failed);
10962 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10963 const u8 *addr, gfp_t gfp)
10965 struct wireless_dev *wdev = dev->ieee80211_ptr;
10966 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
10967 struct sk_buff *msg;
10969 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10974 msg = nlmsg_new(100, gfp);
10978 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10984 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10985 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10986 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10987 goto nla_put_failure;
10989 genlmsg_end(msg, hdr);
10990 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10994 genlmsg_cancel(msg, hdr);
10999 bool cfg80211_rx_spurious_frame(struct net_device *dev,
11000 const u8 *addr, gfp_t gfp)
11002 struct wireless_dev *wdev = dev->ieee80211_ptr;
11005 trace_cfg80211_rx_spurious_frame(dev, addr);
11007 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11008 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11009 trace_cfg80211_return_bool(false);
11012 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11014 trace_cfg80211_return_bool(ret);
11017 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11019 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11020 const u8 *addr, gfp_t gfp)
11022 struct wireless_dev *wdev = dev->ieee80211_ptr;
11025 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11027 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11028 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11029 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11030 trace_cfg80211_return_bool(false);
11033 ret = __nl80211_unexpected_frame(dev,
11034 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11036 trace_cfg80211_return_bool(ret);
11039 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
11041 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
11042 struct wireless_dev *wdev, u32 nlportid,
11043 int freq, int sig_dbm,
11044 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
11046 struct net_device *netdev = wdev->netdev;
11047 struct sk_buff *msg;
11050 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11054 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11060 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11061 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11062 netdev->ifindex)) ||
11063 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11064 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11066 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11067 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11069 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
11070 goto nla_put_failure;
11072 genlmsg_end(msg, hdr);
11074 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11077 genlmsg_cancel(msg, hdr);
11082 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11083 const u8 *buf, size_t len, bool ack, gfp_t gfp)
11085 struct wiphy *wiphy = wdev->wiphy;
11086 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11087 struct net_device *netdev = wdev->netdev;
11088 struct sk_buff *msg;
11091 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11093 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11097 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
11103 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11104 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11105 netdev->ifindex)) ||
11106 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11107 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11108 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11109 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11110 goto nla_put_failure;
11112 genlmsg_end(msg, hdr);
11114 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11115 NL80211_MCGRP_MLME, gfp);
11119 genlmsg_cancel(msg, hdr);
11122 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11124 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11125 enum nl80211_cqm_rssi_threshold_event rssi_event,
11128 struct wireless_dev *wdev = dev->ieee80211_ptr;
11129 struct wiphy *wiphy = wdev->wiphy;
11130 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11131 struct sk_buff *msg;
11132 struct nlattr *pinfoattr;
11135 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11137 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11141 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11147 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11148 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11149 goto nla_put_failure;
11151 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11153 goto nla_put_failure;
11155 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11157 goto nla_put_failure;
11159 nla_nest_end(msg, pinfoattr);
11161 genlmsg_end(msg, hdr);
11163 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11164 NL80211_MCGRP_MLME, gfp);
11168 genlmsg_cancel(msg, hdr);
11171 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11173 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11174 struct net_device *netdev, const u8 *bssid,
11175 const u8 *replay_ctr, gfp_t gfp)
11177 struct sk_buff *msg;
11178 struct nlattr *rekey_attr;
11181 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11185 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11191 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11192 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11193 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11194 goto nla_put_failure;
11196 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11198 goto nla_put_failure;
11200 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11201 NL80211_REPLAY_CTR_LEN, replay_ctr))
11202 goto nla_put_failure;
11204 nla_nest_end(msg, rekey_attr);
11206 genlmsg_end(msg, hdr);
11208 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11209 NL80211_MCGRP_MLME, gfp);
11213 genlmsg_cancel(msg, hdr);
11217 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11218 const u8 *replay_ctr, gfp_t gfp)
11220 struct wireless_dev *wdev = dev->ieee80211_ptr;
11221 struct wiphy *wiphy = wdev->wiphy;
11222 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11224 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11225 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11227 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11230 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11231 struct net_device *netdev, int index,
11232 const u8 *bssid, bool preauth, gfp_t gfp)
11234 struct sk_buff *msg;
11235 struct nlattr *attr;
11238 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11242 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11248 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11249 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11250 goto nla_put_failure;
11252 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11254 goto nla_put_failure;
11256 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11257 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11259 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11260 goto nla_put_failure;
11262 nla_nest_end(msg, attr);
11264 genlmsg_end(msg, hdr);
11266 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11267 NL80211_MCGRP_MLME, gfp);
11271 genlmsg_cancel(msg, hdr);
11275 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11276 const u8 *bssid, bool preauth, gfp_t gfp)
11278 struct wireless_dev *wdev = dev->ieee80211_ptr;
11279 struct wiphy *wiphy = wdev->wiphy;
11280 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11282 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11283 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11285 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11287 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11288 struct net_device *netdev,
11289 struct cfg80211_chan_def *chandef,
11292 struct sk_buff *msg;
11295 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11299 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11305 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11306 goto nla_put_failure;
11308 if (nl80211_send_chandef(msg, chandef))
11309 goto nla_put_failure;
11311 genlmsg_end(msg, hdr);
11313 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11314 NL80211_MCGRP_MLME, gfp);
11318 genlmsg_cancel(msg, hdr);
11322 void cfg80211_ch_switch_notify(struct net_device *dev,
11323 struct cfg80211_chan_def *chandef)
11325 struct wireless_dev *wdev = dev->ieee80211_ptr;
11326 struct wiphy *wiphy = wdev->wiphy;
11327 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11329 ASSERT_WDEV_LOCK(wdev);
11331 trace_cfg80211_ch_switch_notify(dev, chandef);
11333 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11334 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11335 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11336 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11339 wdev->chandef = *chandef;
11340 wdev->preset_chandef = *chandef;
11341 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
11343 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11345 void cfg80211_cqm_txe_notify(struct net_device *dev,
11346 const u8 *peer, u32 num_packets,
11347 u32 rate, u32 intvl, gfp_t gfp)
11349 struct wireless_dev *wdev = dev->ieee80211_ptr;
11350 struct wiphy *wiphy = wdev->wiphy;
11351 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11352 struct sk_buff *msg;
11353 struct nlattr *pinfoattr;
11356 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11360 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11366 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11367 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11368 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11369 goto nla_put_failure;
11371 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11373 goto nla_put_failure;
11375 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11376 goto nla_put_failure;
11378 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11379 goto nla_put_failure;
11381 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11382 goto nla_put_failure;
11384 nla_nest_end(msg, pinfoattr);
11386 genlmsg_end(msg, hdr);
11388 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11389 NL80211_MCGRP_MLME, gfp);
11393 genlmsg_cancel(msg, hdr);
11396 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11399 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11400 const struct cfg80211_chan_def *chandef,
11401 enum nl80211_radar_event event,
11402 struct net_device *netdev, gfp_t gfp)
11404 struct sk_buff *msg;
11407 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11411 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11417 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11418 goto nla_put_failure;
11420 /* NOP and radar events don't need a netdev parameter */
11422 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11424 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11425 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11426 goto nla_put_failure;
11429 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11430 goto nla_put_failure;
11432 if (nl80211_send_chandef(msg, chandef))
11433 goto nla_put_failure;
11435 genlmsg_end(msg, hdr);
11437 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11438 NL80211_MCGRP_MLME, gfp);
11442 genlmsg_cancel(msg, hdr);
11446 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11447 const u8 *peer, u32 num_packets, gfp_t gfp)
11449 struct wireless_dev *wdev = dev->ieee80211_ptr;
11450 struct wiphy *wiphy = wdev->wiphy;
11451 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11452 struct sk_buff *msg;
11453 struct nlattr *pinfoattr;
11456 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11458 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11462 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11468 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11469 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11470 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11471 goto nla_put_failure;
11473 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11475 goto nla_put_failure;
11477 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11478 goto nla_put_failure;
11480 nla_nest_end(msg, pinfoattr);
11482 genlmsg_end(msg, hdr);
11484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11485 NL80211_MCGRP_MLME, gfp);
11489 genlmsg_cancel(msg, hdr);
11492 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11494 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11495 u64 cookie, bool acked, gfp_t gfp)
11497 struct wireless_dev *wdev = dev->ieee80211_ptr;
11498 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11499 struct sk_buff *msg;
11502 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11504 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11509 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11515 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11516 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11517 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11518 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11519 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11520 goto nla_put_failure;
11522 genlmsg_end(msg, hdr);
11524 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11525 NL80211_MCGRP_MLME, gfp);
11529 genlmsg_cancel(msg, hdr);
11532 EXPORT_SYMBOL(cfg80211_probe_status);
11534 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11535 const u8 *frame, size_t len,
11536 int freq, int sig_dbm)
11538 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11539 struct sk_buff *msg;
11541 struct cfg80211_beacon_registration *reg;
11543 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11545 spin_lock_bh(&rdev->beacon_registrations_lock);
11546 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11547 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11549 spin_unlock_bh(&rdev->beacon_registrations_lock);
11553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11555 goto nla_put_failure;
11557 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11559 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11561 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11562 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11563 goto nla_put_failure;
11565 genlmsg_end(msg, hdr);
11567 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11569 spin_unlock_bh(&rdev->beacon_registrations_lock);
11573 spin_unlock_bh(&rdev->beacon_registrations_lock);
11575 genlmsg_cancel(msg, hdr);
11578 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11581 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11582 struct cfg80211_wowlan_wakeup *wakeup,
11585 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11586 struct sk_buff *msg;
11590 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11593 size += wakeup->packet_present_len;
11595 msg = nlmsg_new(size, gfp);
11599 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11603 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11604 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11607 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11608 wdev->netdev->ifindex))
11612 struct nlattr *reasons;
11614 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11618 if (wakeup->disconnect &&
11619 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11621 if (wakeup->magic_pkt &&
11622 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11624 if (wakeup->gtk_rekey_failure &&
11625 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11627 if (wakeup->eap_identity_req &&
11628 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11630 if (wakeup->four_way_handshake &&
11631 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11633 if (wakeup->rfkill_release &&
11634 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11637 if (wakeup->pattern_idx >= 0 &&
11638 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11639 wakeup->pattern_idx))
11642 if (wakeup->tcp_match &&
11643 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11646 if (wakeup->tcp_connlost &&
11647 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11650 if (wakeup->tcp_nomoretokens &&
11652 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11655 if (wakeup->packet) {
11656 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11657 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11659 if (!wakeup->packet_80211) {
11661 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11663 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11666 if (wakeup->packet_len &&
11667 nla_put_u32(msg, len_attr, wakeup->packet_len))
11670 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11675 nla_nest_end(msg, reasons);
11678 genlmsg_end(msg, hdr);
11680 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11681 NL80211_MCGRP_MLME, gfp);
11687 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11690 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11691 enum nl80211_tdls_operation oper,
11692 u16 reason_code, gfp_t gfp)
11694 struct wireless_dev *wdev = dev->ieee80211_ptr;
11695 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11696 struct sk_buff *msg;
11699 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11702 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11706 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11712 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11713 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11714 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11715 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11716 (reason_code > 0 &&
11717 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11718 goto nla_put_failure;
11720 genlmsg_end(msg, hdr);
11722 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11723 NL80211_MCGRP_MLME, gfp);
11727 genlmsg_cancel(msg, hdr);
11730 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11732 static int nl80211_netlink_notify(struct notifier_block * nb,
11733 unsigned long state,
11736 struct netlink_notify *notify = _notify;
11737 struct cfg80211_registered_device *rdev;
11738 struct wireless_dev *wdev;
11739 struct cfg80211_beacon_registration *reg, *tmp;
11741 if (state != NETLINK_URELEASE)
11742 return NOTIFY_DONE;
11746 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11747 bool schedule_destroy_work = false;
11749 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
11750 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11752 if (wdev->owner_nlportid == notify->portid)
11753 schedule_destroy_work = true;
11756 spin_lock_bh(&rdev->beacon_registrations_lock);
11757 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11759 if (reg->nlportid == notify->portid) {
11760 list_del(®->list);
11765 spin_unlock_bh(&rdev->beacon_registrations_lock);
11767 if (schedule_destroy_work) {
11768 struct cfg80211_iface_destroy *destroy;
11770 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11772 destroy->nlportid = notify->portid;
11773 spin_lock(&rdev->destroy_list_lock);
11774 list_add(&destroy->list, &rdev->destroy_list);
11775 spin_unlock(&rdev->destroy_list_lock);
11776 schedule_work(&rdev->destroy_work);
11786 static struct notifier_block nl80211_netlink_notifier = {
11787 .notifier_call = nl80211_netlink_notify,
11790 void cfg80211_ft_event(struct net_device *netdev,
11791 struct cfg80211_ft_event_params *ft_event)
11793 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11794 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11795 struct sk_buff *msg;
11798 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11800 if (!ft_event->target_ap)
11803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11811 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11812 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11813 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11816 if (ft_event->ies &&
11817 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11819 if (ft_event->ric_ies &&
11820 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11821 ft_event->ric_ies))
11824 genlmsg_end(msg, hdr);
11826 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11827 NL80211_MCGRP_MLME, GFP_KERNEL);
11832 EXPORT_SYMBOL(cfg80211_ft_event);
11834 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11836 struct cfg80211_registered_device *rdev;
11837 struct sk_buff *msg;
11841 rdev = wiphy_to_rdev(wdev->wiphy);
11842 if (!rdev->crit_proto_nlportid)
11845 nlportid = rdev->crit_proto_nlportid;
11846 rdev->crit_proto_nlportid = 0;
11848 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11852 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11854 goto nla_put_failure;
11856 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11857 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11858 goto nla_put_failure;
11860 genlmsg_end(msg, hdr);
11862 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11867 genlmsg_cancel(msg, hdr);
11871 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11873 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11875 struct wiphy *wiphy = wdev->wiphy;
11876 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11877 struct sk_buff *msg;
11880 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11884 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11888 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11889 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11890 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11893 genlmsg_end(msg, hdr);
11895 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11896 NL80211_MCGRP_MLME, GFP_KERNEL);
11902 /* initialisation/exit functions */
11904 int nl80211_init(void)
11908 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11913 err = netlink_register_notifier(&nl80211_netlink_notifier);
11919 genl_unregister_family(&nl80211_fam);
11923 void nl80211_exit(void)
11925 netlink_unregister_notifier(&nl80211_netlink_notifier);
11926 genl_unregister_family(&nl80211_fam);