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_TDLS_INITIATOR] = { .type = NLA_FLAG },
341 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
342 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
343 .len = IEEE80211_MAX_DATA_LEN },
344 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
345 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
346 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
347 .len = NL80211_HT_CAPABILITY_LEN
349 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
350 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
351 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
352 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
353 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
354 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
355 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
356 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
357 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
358 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
359 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
360 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
361 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
362 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
363 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
364 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
365 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
366 .len = NL80211_VHT_CAPABILITY_LEN,
368 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
369 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
370 .len = IEEE80211_MAX_DATA_LEN },
371 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
372 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
373 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
374 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
375 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
376 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
378 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
379 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
380 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
381 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
383 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
384 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
385 .len = IEEE80211_QOS_MAP_LEN_MAX },
386 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
387 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
388 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
389 [NL80211_ATTR_IFACE_SOCKET_OWNER] = { .type = NLA_FLAG },
390 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
393 /* policy for the key attributes */
394 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
395 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
396 [NL80211_KEY_IDX] = { .type = NLA_U8 },
397 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
398 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
399 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
400 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
401 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
402 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
405 /* policy for the key default flags */
406 static const struct nla_policy
407 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
408 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
409 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
412 /* policy for WoWLAN attributes */
413 static const struct nla_policy
414 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
415 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
418 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
419 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
420 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
421 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
422 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
426 static const struct nla_policy
427 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
428 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
429 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
430 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
431 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
432 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
433 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
434 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
435 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
437 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
438 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
440 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
441 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
442 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
445 /* policy for coalesce rule attributes */
446 static const struct nla_policy
447 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
448 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
449 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
450 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
453 /* policy for GTK rekey offload attributes */
454 static const struct nla_policy
455 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
456 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
457 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
458 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
461 static const struct nla_policy
462 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
463 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
464 .len = IEEE80211_MAX_SSID_LEN },
465 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
468 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
469 struct netlink_callback *cb,
470 struct cfg80211_registered_device **rdev,
471 struct wireless_dev **wdev)
478 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
479 nl80211_fam.attrbuf, nl80211_fam.maxattr,
484 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
485 nl80211_fam.attrbuf);
487 err = PTR_ERR(*wdev);
490 *rdev = wiphy_to_rdev((*wdev)->wiphy);
491 /* 0 is the first index - add 1 to parse only once */
492 cb->args[0] = (*rdev)->wiphy_idx + 1;
493 cb->args[1] = (*wdev)->identifier;
495 /* subtract the 1 again here */
496 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
497 struct wireless_dev *tmp;
503 *rdev = wiphy_to_rdev(wiphy);
506 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
507 if (tmp->identifier == cb->args[1]) {
525 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
531 static bool is_valid_ie_attr(const struct nlattr *attr)
539 pos = nla_data(attr);
560 /* message building helper */
561 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
564 /* since there is no private header just add the generic one */
565 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
568 static int nl80211_msg_put_channel(struct sk_buff *msg,
569 struct ieee80211_channel *chan,
572 /* Some channels must be completely excluded from the
573 * list to protect old user-space tools from breaking
575 if (!large && chan->flags &
576 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
579 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
581 goto nla_put_failure;
583 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
584 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
585 goto nla_put_failure;
586 if (chan->flags & IEEE80211_CHAN_NO_IR) {
587 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
588 goto nla_put_failure;
589 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
590 goto nla_put_failure;
592 if (chan->flags & IEEE80211_CHAN_RADAR) {
593 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
594 goto nla_put_failure;
598 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
600 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
602 goto nla_put_failure;
603 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
605 goto nla_put_failure;
607 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
609 goto nla_put_failure;
614 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
615 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
616 goto nla_put_failure;
617 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
618 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
619 goto nla_put_failure;
620 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
621 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
622 goto nla_put_failure;
623 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
624 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
625 goto nla_put_failure;
626 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
627 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
628 goto nla_put_failure;
629 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
630 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
631 goto nla_put_failure;
632 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
633 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
634 goto nla_put_failure;
635 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
637 goto nla_put_failure;
640 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
641 DBM_TO_MBM(chan->max_power)))
642 goto nla_put_failure;
650 /* netlink command implementations */
657 bool def_uni, def_multi;
660 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
662 struct nlattr *tb[NL80211_KEY_MAX + 1];
663 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
668 k->def = !!tb[NL80211_KEY_DEFAULT];
669 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
678 if (tb[NL80211_KEY_IDX])
679 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
681 if (tb[NL80211_KEY_DATA]) {
682 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
683 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
686 if (tb[NL80211_KEY_SEQ]) {
687 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
688 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
691 if (tb[NL80211_KEY_CIPHER])
692 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
694 if (tb[NL80211_KEY_TYPE]) {
695 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
696 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
700 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
701 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
702 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
703 tb[NL80211_KEY_DEFAULT_TYPES],
704 nl80211_key_default_policy);
708 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
709 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
715 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
717 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
718 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
719 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
722 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
723 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
724 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
727 if (info->attrs[NL80211_ATTR_KEY_IDX])
728 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
730 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
731 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
733 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
734 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
743 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
744 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
745 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
749 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
750 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
751 int err = nla_parse_nested(
752 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
753 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
754 nl80211_key_default_policy);
758 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
759 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
765 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
769 memset(k, 0, sizeof(*k));
773 if (info->attrs[NL80211_ATTR_KEY])
774 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
776 err = nl80211_parse_key_old(info, k);
781 if (k->def && k->defmgmt)
785 if (k->def_uni || !k->def_multi)
791 if (k->idx < 4 || k->idx > 5)
794 if (k->idx < 0 || k->idx > 3)
797 if (k->idx < 0 || k->idx > 5)
805 static struct cfg80211_cached_keys *
806 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
807 struct nlattr *keys, bool *no_ht)
809 struct key_parse parse;
811 struct cfg80211_cached_keys *result;
812 int rem, err, def = 0;
814 result = kzalloc(sizeof(*result), GFP_KERNEL);
816 return ERR_PTR(-ENOMEM);
819 result->defmgmt = -1;
821 nla_for_each_nested(key, keys, rem) {
822 memset(&parse, 0, sizeof(parse));
825 err = nl80211_parse_key_new(key, &parse);
831 if (parse.idx < 0 || parse.idx > 4)
837 result->def = parse.idx;
838 if (!parse.def_uni || !parse.def_multi)
840 } else if (parse.defmgmt)
842 err = cfg80211_validate_key_settings(rdev, &parse.p,
843 parse.idx, false, NULL);
846 result->params[parse.idx].cipher = parse.p.cipher;
847 result->params[parse.idx].key_len = parse.p.key_len;
848 result->params[parse.idx].key = result->data[parse.idx];
849 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
851 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
852 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
864 static int nl80211_key_allowed(struct wireless_dev *wdev)
866 ASSERT_WDEV_LOCK(wdev);
868 switch (wdev->iftype) {
869 case NL80211_IFTYPE_AP:
870 case NL80211_IFTYPE_AP_VLAN:
871 case NL80211_IFTYPE_P2P_GO:
872 case NL80211_IFTYPE_MESH_POINT:
874 case NL80211_IFTYPE_ADHOC:
875 case NL80211_IFTYPE_STATION:
876 case NL80211_IFTYPE_P2P_CLIENT:
877 if (!wdev->current_bss)
887 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
890 struct ieee80211_channel *chan;
894 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
895 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
900 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
902 struct nlattr *nl_modes = nla_nest_start(msg, attr);
906 goto nla_put_failure;
910 if ((ifmodes & 1) && nla_put_flag(msg, i))
911 goto nla_put_failure;
916 nla_nest_end(msg, nl_modes);
923 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
927 struct nlattr *nl_combis;
930 nl_combis = nla_nest_start(msg,
931 NL80211_ATTR_INTERFACE_COMBINATIONS);
933 goto nla_put_failure;
935 for (i = 0; i < wiphy->n_iface_combinations; i++) {
936 const struct ieee80211_iface_combination *c;
937 struct nlattr *nl_combi, *nl_limits;
939 c = &wiphy->iface_combinations[i];
941 nl_combi = nla_nest_start(msg, i + 1);
943 goto nla_put_failure;
945 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
947 goto nla_put_failure;
949 for (j = 0; j < c->n_limits; j++) {
950 struct nlattr *nl_limit;
952 nl_limit = nla_nest_start(msg, j + 1);
954 goto nla_put_failure;
955 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
957 goto nla_put_failure;
958 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
960 goto nla_put_failure;
961 nla_nest_end(msg, nl_limit);
964 nla_nest_end(msg, nl_limits);
966 if (c->beacon_int_infra_match &&
967 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
968 goto nla_put_failure;
969 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
970 c->num_different_channels) ||
971 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
973 goto nla_put_failure;
975 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
976 c->radar_detect_widths) ||
977 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
978 c->radar_detect_regions)))
979 goto nla_put_failure;
981 nla_nest_end(msg, nl_combi);
984 nla_nest_end(msg, nl_combis);
992 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
995 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
996 struct nlattr *nl_tcp;
1001 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1005 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1006 tcp->data_payload_max))
1009 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1010 tcp->data_payload_max))
1013 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1016 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1017 sizeof(*tcp->tok), tcp->tok))
1020 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1021 tcp->data_interval_max))
1024 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1025 tcp->wake_payload_max))
1028 nla_nest_end(msg, nl_tcp);
1032 static int nl80211_send_wowlan(struct sk_buff *msg,
1033 struct cfg80211_registered_device *rdev,
1036 struct nlattr *nl_wowlan;
1038 if (!rdev->wiphy.wowlan)
1041 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1045 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1046 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1047 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1048 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1049 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1051 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1052 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1053 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1055 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1056 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1057 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1058 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1059 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1063 if (rdev->wiphy.wowlan->n_patterns) {
1064 struct nl80211_pattern_support pat = {
1065 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1066 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1067 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1068 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1071 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1076 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1079 nla_nest_end(msg, nl_wowlan);
1085 static int nl80211_send_coalesce(struct sk_buff *msg,
1086 struct cfg80211_registered_device *rdev)
1088 struct nl80211_coalesce_rule_support rule;
1090 if (!rdev->wiphy.coalesce)
1093 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1094 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1095 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1096 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1097 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1098 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1100 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1106 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1107 struct ieee80211_supported_band *sband)
1109 struct nlattr *nl_rates, *nl_rate;
1110 struct ieee80211_rate *rate;
1114 if (sband->ht_cap.ht_supported &&
1115 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1116 sizeof(sband->ht_cap.mcs),
1117 &sband->ht_cap.mcs) ||
1118 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1119 sband->ht_cap.cap) ||
1120 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1121 sband->ht_cap.ampdu_factor) ||
1122 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1123 sband->ht_cap.ampdu_density)))
1127 if (sband->vht_cap.vht_supported &&
1128 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1129 sizeof(sband->vht_cap.vht_mcs),
1130 &sband->vht_cap.vht_mcs) ||
1131 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1132 sband->vht_cap.cap)))
1136 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1140 for (i = 0; i < sband->n_bitrates; i++) {
1141 nl_rate = nla_nest_start(msg, i);
1145 rate = &sband->bitrates[i];
1146 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1149 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1151 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1154 nla_nest_end(msg, nl_rate);
1157 nla_nest_end(msg, nl_rates);
1163 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1164 const struct ieee80211_txrx_stypes *mgmt_stypes)
1167 struct nlattr *nl_ftypes, *nl_ifs;
1168 enum nl80211_iftype ift;
1174 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1178 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1179 nl_ftypes = nla_nest_start(msg, ift);
1183 stypes = mgmt_stypes[ift].tx;
1186 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1187 (i << 4) | IEEE80211_FTYPE_MGMT))
1192 nla_nest_end(msg, nl_ftypes);
1195 nla_nest_end(msg, nl_ifs);
1197 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1201 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1202 nl_ftypes = nla_nest_start(msg, ift);
1206 stypes = mgmt_stypes[ift].rx;
1209 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1210 (i << 4) | IEEE80211_FTYPE_MGMT))
1215 nla_nest_end(msg, nl_ftypes);
1217 nla_nest_end(msg, nl_ifs);
1222 struct nl80211_dump_wiphy_state {
1225 long split_start, band_start, chan_start;
1229 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1230 enum nl80211_commands cmd,
1231 struct sk_buff *msg, u32 portid, u32 seq,
1232 int flags, struct nl80211_dump_wiphy_state *state)
1235 struct nlattr *nl_bands, *nl_band;
1236 struct nlattr *nl_freqs, *nl_freq;
1237 struct nlattr *nl_cmds;
1238 enum ieee80211_band band;
1239 struct ieee80211_channel *chan;
1241 const struct ieee80211_txrx_stypes *mgmt_stypes =
1242 rdev->wiphy.mgmt_stypes;
1245 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1249 if (WARN_ON(!state))
1252 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1253 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1254 wiphy_name(&rdev->wiphy)) ||
1255 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1256 cfg80211_rdev_list_generation))
1257 goto nla_put_failure;
1259 if (cmd != NL80211_CMD_NEW_WIPHY)
1262 switch (state->split_start) {
1264 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1265 rdev->wiphy.retry_short) ||
1266 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1267 rdev->wiphy.retry_long) ||
1268 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1269 rdev->wiphy.frag_threshold) ||
1270 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1271 rdev->wiphy.rts_threshold) ||
1272 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1273 rdev->wiphy.coverage_class) ||
1274 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1275 rdev->wiphy.max_scan_ssids) ||
1276 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1277 rdev->wiphy.max_sched_scan_ssids) ||
1278 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1279 rdev->wiphy.max_scan_ie_len) ||
1280 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1281 rdev->wiphy.max_sched_scan_ie_len) ||
1282 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1283 rdev->wiphy.max_match_sets))
1284 goto nla_put_failure;
1286 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1287 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1288 goto nla_put_failure;
1289 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1290 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1291 goto nla_put_failure;
1292 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1293 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1294 goto nla_put_failure;
1295 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1296 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1297 goto nla_put_failure;
1298 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1299 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1300 goto nla_put_failure;
1301 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1302 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1303 goto nla_put_failure;
1304 state->split_start++;
1308 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1309 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1310 rdev->wiphy.cipher_suites))
1311 goto nla_put_failure;
1313 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1314 rdev->wiphy.max_num_pmkids))
1315 goto nla_put_failure;
1317 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1318 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1319 goto nla_put_failure;
1321 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1322 rdev->wiphy.available_antennas_tx) ||
1323 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1324 rdev->wiphy.available_antennas_rx))
1325 goto nla_put_failure;
1327 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1328 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1329 rdev->wiphy.probe_resp_offload))
1330 goto nla_put_failure;
1332 if ((rdev->wiphy.available_antennas_tx ||
1333 rdev->wiphy.available_antennas_rx) &&
1334 rdev->ops->get_antenna) {
1335 u32 tx_ant = 0, rx_ant = 0;
1337 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1339 if (nla_put_u32(msg,
1340 NL80211_ATTR_WIPHY_ANTENNA_TX,
1343 NL80211_ATTR_WIPHY_ANTENNA_RX,
1345 goto nla_put_failure;
1349 state->split_start++;
1353 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1354 rdev->wiphy.interface_modes))
1355 goto nla_put_failure;
1356 state->split_start++;
1360 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1362 goto nla_put_failure;
1364 for (band = state->band_start;
1365 band < IEEE80211_NUM_BANDS; band++) {
1366 struct ieee80211_supported_band *sband;
1368 sband = rdev->wiphy.bands[band];
1373 nl_band = nla_nest_start(msg, band);
1375 goto nla_put_failure;
1377 switch (state->chan_start) {
1379 if (nl80211_send_band_rateinfo(msg, sband))
1380 goto nla_put_failure;
1381 state->chan_start++;
1385 /* add frequencies */
1386 nl_freqs = nla_nest_start(
1387 msg, NL80211_BAND_ATTR_FREQS);
1389 goto nla_put_failure;
1391 for (i = state->chan_start - 1;
1392 i < sband->n_channels;
1394 nl_freq = nla_nest_start(msg, i);
1396 goto nla_put_failure;
1398 chan = &sband->channels[i];
1400 if (nl80211_msg_put_channel(
1403 goto nla_put_failure;
1405 nla_nest_end(msg, nl_freq);
1409 if (i < sband->n_channels)
1410 state->chan_start = i + 2;
1412 state->chan_start = 0;
1413 nla_nest_end(msg, nl_freqs);
1416 nla_nest_end(msg, nl_band);
1419 /* start again here */
1420 if (state->chan_start)
1425 nla_nest_end(msg, nl_bands);
1427 if (band < IEEE80211_NUM_BANDS)
1428 state->band_start = band + 1;
1430 state->band_start = 0;
1432 /* if bands & channels are done, continue outside */
1433 if (state->band_start == 0 && state->chan_start == 0)
1434 state->split_start++;
1438 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1440 goto nla_put_failure;
1443 #define CMD(op, n) \
1445 if (rdev->ops->op) { \
1447 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1448 goto nla_put_failure; \
1452 CMD(add_virtual_intf, NEW_INTERFACE);
1453 CMD(change_virtual_intf, SET_INTERFACE);
1454 CMD(add_key, NEW_KEY);
1455 CMD(start_ap, START_AP);
1456 CMD(add_station, NEW_STATION);
1457 CMD(add_mpath, NEW_MPATH);
1458 CMD(update_mesh_config, SET_MESH_CONFIG);
1459 CMD(change_bss, SET_BSS);
1460 CMD(auth, AUTHENTICATE);
1461 CMD(assoc, ASSOCIATE);
1462 CMD(deauth, DEAUTHENTICATE);
1463 CMD(disassoc, DISASSOCIATE);
1464 CMD(join_ibss, JOIN_IBSS);
1465 CMD(join_mesh, JOIN_MESH);
1466 CMD(set_pmksa, SET_PMKSA);
1467 CMD(del_pmksa, DEL_PMKSA);
1468 CMD(flush_pmksa, FLUSH_PMKSA);
1469 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1470 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1471 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1472 CMD(mgmt_tx, FRAME);
1473 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1474 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1476 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1477 goto nla_put_failure;
1479 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1480 rdev->ops->join_mesh) {
1482 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1483 goto nla_put_failure;
1485 CMD(set_wds_peer, SET_WDS_PEER);
1486 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1487 CMD(tdls_mgmt, TDLS_MGMT);
1488 CMD(tdls_oper, TDLS_OPER);
1490 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1491 CMD(sched_scan_start, START_SCHED_SCAN);
1492 CMD(probe_client, PROBE_CLIENT);
1493 CMD(set_noack_map, SET_NOACK_MAP);
1494 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1496 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1497 goto nla_put_failure;
1499 CMD(start_p2p_device, START_P2P_DEVICE);
1500 CMD(set_mcast_rate, SET_MCAST_RATE);
1501 #ifdef CONFIG_NL80211_TESTMODE
1502 CMD(testmode_cmd, TESTMODE);
1505 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1506 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1507 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1508 CMD(channel_switch, CHANNEL_SWITCH);
1509 CMD(set_qos_map, SET_QOS_MAP);
1511 /* add into the if now */
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)
3818 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3821 /* When you run into this, adjust the code below for the new flag */
3822 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3825 case CFG80211_STA_MESH_PEER_KERNEL:
3826 case CFG80211_STA_MESH_PEER_USER:
3828 * No ignoring the TDLS flag here -- the userspace mesh
3829 * code doesn't have the bug of including TDLS in the
3832 if (params->sta_flags_mask &
3833 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3834 BIT(NL80211_STA_FLAG_MFP) |
3835 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3838 case CFG80211_STA_TDLS_PEER_SETUP:
3839 case CFG80211_STA_TDLS_PEER_ACTIVE:
3840 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3842 /* ignore since it can't change */
3843 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3846 /* disallow mesh-specific things */
3847 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3849 if (params->local_pm)
3851 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3855 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3856 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3857 /* TDLS can't be set, ... */
3858 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3861 * ... but don't bother the driver with it. This works around
3862 * a hostapd/wpa_supplicant issue -- it always includes the
3863 * TLDS_PEER flag in the mask even for AP mode.
3865 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3868 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3869 /* reject other things that can't change */
3870 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3872 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3874 if (params->supported_rates)
3876 if (params->ext_capab || params->ht_capa || params->vht_capa)
3880 if (statype != CFG80211_STA_AP_CLIENT) {
3886 case CFG80211_STA_AP_MLME_CLIENT:
3887 /* Use this only for authorizing/unauthorizing a station */
3888 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3891 case CFG80211_STA_AP_CLIENT:
3892 /* accept only the listed bits */
3893 if (params->sta_flags_mask &
3894 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3895 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3896 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3897 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3898 BIT(NL80211_STA_FLAG_WME) |
3899 BIT(NL80211_STA_FLAG_MFP)))
3902 /* but authenticated/associated only if driver handles it */
3903 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3904 params->sta_flags_mask &
3905 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3906 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3909 case CFG80211_STA_IBSS:
3910 case CFG80211_STA_AP_STA:
3911 /* reject any changes other than AUTHORIZED */
3912 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3915 case CFG80211_STA_TDLS_PEER_SETUP:
3916 /* reject any changes other than AUTHORIZED or WME */
3917 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3918 BIT(NL80211_STA_FLAG_WME)))
3920 /* force (at least) rates when authorizing */
3921 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3922 !params->supported_rates)
3925 case CFG80211_STA_TDLS_PEER_ACTIVE:
3926 /* reject any changes */
3928 case CFG80211_STA_MESH_PEER_KERNEL:
3929 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3932 case CFG80211_STA_MESH_PEER_USER:
3933 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3940 EXPORT_SYMBOL(cfg80211_check_station_change);
3943 * Get vlan interface making sure it is running and on the right wiphy.
3945 static struct net_device *get_vlan(struct genl_info *info,
3946 struct cfg80211_registered_device *rdev)
3948 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3949 struct net_device *v;
3955 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3957 return ERR_PTR(-ENODEV);
3959 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3964 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3965 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3966 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3971 if (!netif_running(v)) {
3979 return ERR_PTR(ret);
3982 static const struct nla_policy
3983 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
3984 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3985 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3988 static int nl80211_parse_sta_wme(struct genl_info *info,
3989 struct station_parameters *params)
3991 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3995 /* parse WME attributes if present */
3996 if (!info->attrs[NL80211_ATTR_STA_WME])
3999 nla = info->attrs[NL80211_ATTR_STA_WME];
4000 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4001 nl80211_sta_wme_policy);
4005 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4006 params->uapsd_queues = nla_get_u8(
4007 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4008 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4011 if (tb[NL80211_STA_WME_MAX_SP])
4012 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4014 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4017 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4022 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4023 struct station_parameters *params)
4025 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4026 params->supported_channels =
4027 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4028 params->supported_channels_len =
4029 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4031 * Need to include at least one (first channel, number of
4032 * channels) tuple for each subband, and must have proper
4033 * tuples for the rest of the data as well.
4035 if (params->supported_channels_len < 2)
4037 if (params->supported_channels_len % 2)
4041 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4042 params->supported_oper_classes =
4043 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4044 params->supported_oper_classes_len =
4045 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4047 * The value of the Length field of the Supported Operating
4048 * Classes element is between 2 and 253.
4050 if (params->supported_oper_classes_len < 2 ||
4051 params->supported_oper_classes_len > 253)
4057 static int nl80211_set_station_tdls(struct genl_info *info,
4058 struct station_parameters *params)
4061 /* Dummy STA entry gets updated once the peer capabilities are known */
4062 if (info->attrs[NL80211_ATTR_PEER_AID])
4063 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4064 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4066 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4067 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4069 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4071 err = nl80211_parse_sta_channel_info(info, params);
4075 return nl80211_parse_sta_wme(info, params);
4078 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4081 struct net_device *dev = info->user_ptr[1];
4082 struct station_parameters params;
4086 memset(¶ms, 0, sizeof(params));
4088 params.listen_interval = -1;
4090 if (!rdev->ops->change_station)
4093 if (info->attrs[NL80211_ATTR_STA_AID])
4096 if (!info->attrs[NL80211_ATTR_MAC])
4099 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4101 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4102 params.supported_rates =
4103 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4104 params.supported_rates_len =
4105 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4108 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4110 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4111 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4114 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4116 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4117 params.ext_capab_len =
4118 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4121 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4124 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4127 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4128 params.plink_action =
4129 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4130 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4134 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4135 params.plink_state =
4136 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4137 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4139 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4142 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4143 enum nl80211_mesh_power_mode pm = nla_get_u32(
4144 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4146 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4147 pm > NL80211_MESH_POWER_MAX)
4150 params.local_pm = pm;
4153 /* Include parameters for TDLS peer (will check later) */
4154 err = nl80211_set_station_tdls(info, ¶ms);
4158 params.vlan = get_vlan(info, rdev);
4159 if (IS_ERR(params.vlan))
4160 return PTR_ERR(params.vlan);
4162 switch (dev->ieee80211_ptr->iftype) {
4163 case NL80211_IFTYPE_AP:
4164 case NL80211_IFTYPE_AP_VLAN:
4165 case NL80211_IFTYPE_P2P_GO:
4166 case NL80211_IFTYPE_P2P_CLIENT:
4167 case NL80211_IFTYPE_STATION:
4168 case NL80211_IFTYPE_ADHOC:
4169 case NL80211_IFTYPE_MESH_POINT:
4176 /* driver will call cfg80211_check_station_change() */
4177 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4181 dev_put(params.vlan);
4186 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4188 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4190 struct net_device *dev = info->user_ptr[1];
4191 struct station_parameters params;
4192 u8 *mac_addr = NULL;
4194 memset(¶ms, 0, sizeof(params));
4196 if (!rdev->ops->add_station)
4199 if (!info->attrs[NL80211_ATTR_MAC])
4202 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4205 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4208 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4209 !info->attrs[NL80211_ATTR_PEER_AID])
4212 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4213 params.supported_rates =
4214 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4215 params.supported_rates_len =
4216 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4217 params.listen_interval =
4218 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4220 if (info->attrs[NL80211_ATTR_PEER_AID])
4221 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4223 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4224 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4227 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4229 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4230 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4233 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4235 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4236 params.ext_capab_len =
4237 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4240 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4242 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4244 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4246 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4248 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4249 params.opmode_notif_used = true;
4250 params.opmode_notif =
4251 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4254 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4255 params.plink_action =
4256 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4257 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4261 err = nl80211_parse_sta_channel_info(info, ¶ms);
4265 err = nl80211_parse_sta_wme(info, ¶ms);
4269 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4272 /* When you run into this, adjust the code below for the new flag */
4273 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4275 switch (dev->ieee80211_ptr->iftype) {
4276 case NL80211_IFTYPE_AP:
4277 case NL80211_IFTYPE_AP_VLAN:
4278 case NL80211_IFTYPE_P2P_GO:
4279 /* ignore WME attributes if iface/sta is not capable */
4280 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4281 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4282 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4284 /* TDLS peers cannot be added */
4285 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4286 info->attrs[NL80211_ATTR_PEER_AID])
4288 /* but don't bother the driver with it */
4289 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4291 /* allow authenticated/associated only if driver handles it */
4292 if (!(rdev->wiphy.features &
4293 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4294 params.sta_flags_mask &
4295 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4296 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4299 /* must be last in here for error handling */
4300 params.vlan = get_vlan(info, rdev);
4301 if (IS_ERR(params.vlan))
4302 return PTR_ERR(params.vlan);
4304 case NL80211_IFTYPE_MESH_POINT:
4305 /* ignore uAPSD data */
4306 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4308 /* associated is disallowed */
4309 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4311 /* TDLS peers cannot be added */
4312 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4313 info->attrs[NL80211_ATTR_PEER_AID])
4316 case NL80211_IFTYPE_STATION:
4317 case NL80211_IFTYPE_P2P_CLIENT:
4318 /* ignore uAPSD data */
4319 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4321 /* these are disallowed */
4322 if (params.sta_flags_mask &
4323 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4324 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4326 /* Only TDLS peers can be added */
4327 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4329 /* Can only add if TDLS ... */
4330 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4332 /* ... with external setup is supported */
4333 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4336 * Older wpa_supplicant versions always mark the TDLS peer
4337 * as authorized, but it shouldn't yet be.
4339 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4345 /* be aware of params.vlan when changing code here */
4347 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4350 dev_put(params.vlan);
4354 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4357 struct net_device *dev = info->user_ptr[1];
4358 u8 *mac_addr = NULL;
4360 if (info->attrs[NL80211_ATTR_MAC])
4361 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4363 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4364 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4365 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4366 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4369 if (!rdev->ops->del_station)
4372 return rdev_del_station(rdev, dev, mac_addr);
4375 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4376 int flags, struct net_device *dev,
4377 u8 *dst, u8 *next_hop,
4378 struct mpath_info *pinfo)
4381 struct nlattr *pinfoattr;
4383 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4387 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4388 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4389 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4390 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4391 goto nla_put_failure;
4393 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4395 goto nla_put_failure;
4396 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4397 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4399 goto nla_put_failure;
4400 if (((pinfo->filled & MPATH_INFO_SN) &&
4401 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4402 ((pinfo->filled & MPATH_INFO_METRIC) &&
4403 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4405 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4406 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4408 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4409 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4411 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4412 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4413 pinfo->discovery_timeout)) ||
4414 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4415 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4416 pinfo->discovery_retries)))
4417 goto nla_put_failure;
4419 nla_nest_end(msg, pinfoattr);
4421 return genlmsg_end(msg, hdr);
4424 genlmsg_cancel(msg, hdr);
4428 static int nl80211_dump_mpath(struct sk_buff *skb,
4429 struct netlink_callback *cb)
4431 struct mpath_info pinfo;
4432 struct cfg80211_registered_device *rdev;
4433 struct wireless_dev *wdev;
4435 u8 next_hop[ETH_ALEN];
4436 int path_idx = cb->args[2];
4439 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4443 if (!rdev->ops->dump_mpath) {
4448 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4454 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4461 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4462 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4463 wdev->netdev, dst, next_hop,
4472 cb->args[2] = path_idx;
4475 nl80211_finish_wdev_dump(rdev);
4479 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4483 struct net_device *dev = info->user_ptr[1];
4484 struct mpath_info pinfo;
4485 struct sk_buff *msg;
4487 u8 next_hop[ETH_ALEN];
4489 memset(&pinfo, 0, sizeof(pinfo));
4491 if (!info->attrs[NL80211_ATTR_MAC])
4494 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4496 if (!rdev->ops->get_mpath)
4499 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4502 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4506 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4510 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4511 dev, dst, next_hop, &pinfo) < 0) {
4516 return genlmsg_reply(msg, info);
4519 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4521 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4522 struct net_device *dev = info->user_ptr[1];
4524 u8 *next_hop = NULL;
4526 if (!info->attrs[NL80211_ATTR_MAC])
4529 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4532 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4533 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4535 if (!rdev->ops->change_mpath)
4538 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4541 return rdev_change_mpath(rdev, dev, dst, next_hop);
4544 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4547 struct net_device *dev = info->user_ptr[1];
4549 u8 *next_hop = NULL;
4551 if (!info->attrs[NL80211_ATTR_MAC])
4554 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4557 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4558 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4560 if (!rdev->ops->add_mpath)
4563 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4566 return rdev_add_mpath(rdev, dev, dst, next_hop);
4569 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4572 struct net_device *dev = info->user_ptr[1];
4575 if (info->attrs[NL80211_ATTR_MAC])
4576 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4578 if (!rdev->ops->del_mpath)
4581 return rdev_del_mpath(rdev, dev, dst);
4584 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4586 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4587 struct net_device *dev = info->user_ptr[1];
4588 struct wireless_dev *wdev = dev->ieee80211_ptr;
4589 struct bss_parameters params;
4592 memset(¶ms, 0, sizeof(params));
4593 /* default to not changing parameters */
4594 params.use_cts_prot = -1;
4595 params.use_short_preamble = -1;
4596 params.use_short_slot_time = -1;
4597 params.ap_isolate = -1;
4598 params.ht_opmode = -1;
4599 params.p2p_ctwindow = -1;
4600 params.p2p_opp_ps = -1;
4602 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4603 params.use_cts_prot =
4604 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4605 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4606 params.use_short_preamble =
4607 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4608 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4609 params.use_short_slot_time =
4610 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4611 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4612 params.basic_rates =
4613 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4614 params.basic_rates_len =
4615 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4617 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4618 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4619 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4621 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4623 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4624 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4626 params.p2p_ctwindow =
4627 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4628 if (params.p2p_ctwindow < 0)
4630 if (params.p2p_ctwindow != 0 &&
4631 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4635 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4638 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4640 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4643 params.p2p_opp_ps = tmp;
4644 if (params.p2p_opp_ps &&
4645 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4649 if (!rdev->ops->change_bss)
4652 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4653 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4657 err = rdev_change_bss(rdev, dev, ¶ms);
4663 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4664 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4665 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4666 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4667 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4668 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4669 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4670 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4673 static int parse_reg_rule(struct nlattr *tb[],
4674 struct ieee80211_reg_rule *reg_rule)
4676 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4677 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4679 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4681 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4683 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4685 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4687 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4690 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4692 freq_range->start_freq_khz =
4693 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4694 freq_range->end_freq_khz =
4695 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4696 freq_range->max_bandwidth_khz =
4697 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4699 power_rule->max_eirp =
4700 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4702 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4703 power_rule->max_antenna_gain =
4704 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4706 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4707 reg_rule->dfs_cac_ms =
4708 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4713 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4716 enum nl80211_user_reg_hint_type user_reg_hint_type;
4719 * You should only get this when cfg80211 hasn't yet initialized
4720 * completely when built-in to the kernel right between the time
4721 * window between nl80211_init() and regulatory_init(), if that is
4724 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4725 return -EINPROGRESS;
4727 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4728 user_reg_hint_type =
4729 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4731 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4733 switch (user_reg_hint_type) {
4734 case NL80211_USER_REG_HINT_USER:
4735 case NL80211_USER_REG_HINT_CELL_BASE:
4736 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4739 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4740 return regulatory_hint_user(data, user_reg_hint_type);
4741 case NL80211_USER_REG_HINT_INDOOR:
4742 return regulatory_hint_indoor_user();
4748 static int nl80211_get_mesh_config(struct sk_buff *skb,
4749 struct genl_info *info)
4751 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4752 struct net_device *dev = info->user_ptr[1];
4753 struct wireless_dev *wdev = dev->ieee80211_ptr;
4754 struct mesh_config cur_params;
4757 struct nlattr *pinfoattr;
4758 struct sk_buff *msg;
4760 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4763 if (!rdev->ops->get_mesh_config)
4767 /* If not connected, get default parameters */
4768 if (!wdev->mesh_id_len)
4769 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4771 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4777 /* Draw up a netlink message to send back */
4778 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4781 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4782 NL80211_CMD_GET_MESH_CONFIG);
4785 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4787 goto nla_put_failure;
4788 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4789 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4790 cur_params.dot11MeshRetryTimeout) ||
4791 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4792 cur_params.dot11MeshConfirmTimeout) ||
4793 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4794 cur_params.dot11MeshHoldingTimeout) ||
4795 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4796 cur_params.dot11MeshMaxPeerLinks) ||
4797 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4798 cur_params.dot11MeshMaxRetries) ||
4799 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4800 cur_params.dot11MeshTTL) ||
4801 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4802 cur_params.element_ttl) ||
4803 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4804 cur_params.auto_open_plinks) ||
4805 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4806 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4807 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4808 cur_params.dot11MeshHWMPmaxPREQretries) ||
4809 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4810 cur_params.path_refresh_time) ||
4811 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4812 cur_params.min_discovery_timeout) ||
4813 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4814 cur_params.dot11MeshHWMPactivePathTimeout) ||
4815 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4816 cur_params.dot11MeshHWMPpreqMinInterval) ||
4817 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4818 cur_params.dot11MeshHWMPperrMinInterval) ||
4819 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4820 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4821 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4822 cur_params.dot11MeshHWMPRootMode) ||
4823 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4824 cur_params.dot11MeshHWMPRannInterval) ||
4825 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4826 cur_params.dot11MeshGateAnnouncementProtocol) ||
4827 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4828 cur_params.dot11MeshForwarding) ||
4829 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4830 cur_params.rssi_threshold) ||
4831 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4832 cur_params.ht_opmode) ||
4833 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4834 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4835 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4836 cur_params.dot11MeshHWMProotInterval) ||
4837 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4838 cur_params.dot11MeshHWMPconfirmationInterval) ||
4839 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4840 cur_params.power_mode) ||
4841 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4842 cur_params.dot11MeshAwakeWindowDuration) ||
4843 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4844 cur_params.plink_timeout))
4845 goto nla_put_failure;
4846 nla_nest_end(msg, pinfoattr);
4847 genlmsg_end(msg, hdr);
4848 return genlmsg_reply(msg, info);
4851 genlmsg_cancel(msg, hdr);
4857 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4858 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4859 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4860 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4861 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4862 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4863 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4864 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4865 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4866 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4867 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4868 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4869 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4870 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4871 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4872 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4873 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4874 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4875 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4876 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4877 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4878 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4879 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4880 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4881 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4882 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4883 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4884 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4885 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4888 static const struct nla_policy
4889 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4890 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4891 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4892 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4893 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4894 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4895 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4896 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4897 .len = IEEE80211_MAX_DATA_LEN },
4898 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4901 static int nl80211_parse_mesh_config(struct genl_info *info,
4902 struct mesh_config *cfg,
4905 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4908 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4911 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4913 cfg->param = fn(tb[attr]); \
4914 mask |= (1 << (attr - 1)); \
4919 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4921 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4922 info->attrs[NL80211_ATTR_MESH_CONFIG],
4923 nl80211_meshconf_params_policy))
4926 /* This makes sure that there aren't more than 32 mesh config
4927 * parameters (otherwise our bitfield scheme would not work.) */
4928 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4930 /* Fill in the params struct */
4931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4932 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4934 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4935 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4937 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4938 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4940 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4941 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4943 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4944 mask, NL80211_MESHCONF_MAX_RETRIES,
4946 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4947 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4948 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4949 mask, NL80211_MESHCONF_ELEMENT_TTL,
4951 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4952 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4954 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4956 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4958 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4959 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4961 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4962 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4964 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4965 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4967 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4969 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4971 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4973 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4975 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4977 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4979 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4980 dot11MeshHWMPnetDiameterTraversalTime,
4982 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4984 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4985 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4987 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4988 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4990 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4991 dot11MeshGateAnnouncementProtocol, 0, 1,
4992 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4994 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4995 mask, NL80211_MESHCONF_FORWARDING,
4997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
4998 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5000 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5001 mask, NL80211_MESHCONF_HT_OPMODE,
5003 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5005 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5008 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5011 dot11MeshHWMPconfirmationInterval,
5013 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5015 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5016 NL80211_MESH_POWER_ACTIVE,
5017 NL80211_MESH_POWER_MAX,
5018 mask, NL80211_MESHCONF_POWER_MODE,
5020 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5022 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5023 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5024 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5031 #undef FILL_IN_MESH_PARAM_IF_SET
5034 static int nl80211_parse_mesh_setup(struct genl_info *info,
5035 struct mesh_setup *setup)
5037 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5038 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5040 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5042 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5043 info->attrs[NL80211_ATTR_MESH_SETUP],
5044 nl80211_mesh_setup_params_policy))
5047 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5048 setup->sync_method =
5049 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5050 IEEE80211_SYNC_METHOD_VENDOR :
5051 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5053 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5054 setup->path_sel_proto =
5055 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5056 IEEE80211_PATH_PROTOCOL_VENDOR :
5057 IEEE80211_PATH_PROTOCOL_HWMP;
5059 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5060 setup->path_metric =
5061 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5062 IEEE80211_PATH_METRIC_VENDOR :
5063 IEEE80211_PATH_METRIC_AIRTIME;
5066 if (tb[NL80211_MESH_SETUP_IE]) {
5067 struct nlattr *ieattr =
5068 tb[NL80211_MESH_SETUP_IE];
5069 if (!is_valid_ie_attr(ieattr))
5071 setup->ie = nla_data(ieattr);
5072 setup->ie_len = nla_len(ieattr);
5074 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5075 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5077 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5078 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5079 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5080 if (setup->is_secure)
5081 setup->user_mpm = true;
5083 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5084 if (!setup->user_mpm)
5087 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5093 static int nl80211_update_mesh_config(struct sk_buff *skb,
5094 struct genl_info *info)
5096 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5097 struct net_device *dev = info->user_ptr[1];
5098 struct wireless_dev *wdev = dev->ieee80211_ptr;
5099 struct mesh_config cfg;
5103 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5106 if (!rdev->ops->update_mesh_config)
5109 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5114 if (!wdev->mesh_id_len)
5118 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5125 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5127 const struct ieee80211_regdomain *regdom;
5128 struct sk_buff *msg;
5130 struct nlattr *nl_reg_rules;
5133 if (!cfg80211_regdomain)
5136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5140 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5141 NL80211_CMD_GET_REG);
5145 if (reg_last_request_cell_base() &&
5146 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5147 NL80211_USER_REG_HINT_CELL_BASE))
5148 goto nla_put_failure;
5151 regdom = rcu_dereference(cfg80211_regdomain);
5153 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5154 (regdom->dfs_region &&
5155 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5156 goto nla_put_failure_rcu;
5158 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5160 goto nla_put_failure_rcu;
5162 for (i = 0; i < regdom->n_reg_rules; i++) {
5163 struct nlattr *nl_reg_rule;
5164 const struct ieee80211_reg_rule *reg_rule;
5165 const struct ieee80211_freq_range *freq_range;
5166 const struct ieee80211_power_rule *power_rule;
5167 unsigned int max_bandwidth_khz;
5169 reg_rule = ®dom->reg_rules[i];
5170 freq_range = ®_rule->freq_range;
5171 power_rule = ®_rule->power_rule;
5173 nl_reg_rule = nla_nest_start(msg, i);
5175 goto nla_put_failure_rcu;
5177 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5178 if (!max_bandwidth_khz)
5179 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5182 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5184 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5185 freq_range->start_freq_khz) ||
5186 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5187 freq_range->end_freq_khz) ||
5188 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5189 max_bandwidth_khz) ||
5190 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5191 power_rule->max_antenna_gain) ||
5192 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5193 power_rule->max_eirp) ||
5194 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5195 reg_rule->dfs_cac_ms))
5196 goto nla_put_failure_rcu;
5198 nla_nest_end(msg, nl_reg_rule);
5202 nla_nest_end(msg, nl_reg_rules);
5204 genlmsg_end(msg, hdr);
5205 return genlmsg_reply(msg, info);
5207 nla_put_failure_rcu:
5210 genlmsg_cancel(msg, hdr);
5216 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5218 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5219 struct nlattr *nl_reg_rule;
5220 char *alpha2 = NULL;
5221 int rem_reg_rules = 0, r = 0;
5222 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5223 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5224 struct ieee80211_regdomain *rd = NULL;
5226 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5229 if (!info->attrs[NL80211_ATTR_REG_RULES])
5232 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5234 if (info->attrs[NL80211_ATTR_DFS_REGION])
5235 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5237 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5240 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5244 if (!reg_is_valid_request(alpha2))
5247 size_of_regd = sizeof(struct ieee80211_regdomain) +
5248 num_rules * sizeof(struct ieee80211_reg_rule);
5250 rd = kzalloc(size_of_regd, GFP_KERNEL);
5254 rd->n_reg_rules = num_rules;
5255 rd->alpha2[0] = alpha2[0];
5256 rd->alpha2[1] = alpha2[1];
5259 * Disable DFS master mode if the DFS region was
5260 * not supported or known on this kernel.
5262 if (reg_supported_dfs_region(dfs_region))
5263 rd->dfs_region = dfs_region;
5265 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5267 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5268 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5272 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5278 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5285 /* set_regdom took ownership */
5293 static int validate_scan_freqs(struct nlattr *freqs)
5295 struct nlattr *attr1, *attr2;
5296 int n_channels = 0, tmp1, tmp2;
5298 nla_for_each_nested(attr1, freqs, tmp1) {
5301 * Some hardware has a limited channel list for
5302 * scanning, and it is pretty much nonsensical
5303 * to scan for a channel twice, so disallow that
5304 * and don't require drivers to check that the
5305 * channel list they get isn't longer than what
5306 * they can scan, as long as they can scan all
5307 * the channels they registered at once.
5309 nla_for_each_nested(attr2, freqs, tmp2)
5310 if (attr1 != attr2 &&
5311 nla_get_u32(attr1) == nla_get_u32(attr2))
5318 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5320 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5321 struct wireless_dev *wdev = info->user_ptr[1];
5322 struct cfg80211_scan_request *request;
5323 struct nlattr *attr;
5324 struct wiphy *wiphy;
5325 int err, tmp, n_ssids = 0, n_channels, i;
5328 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5331 wiphy = &rdev->wiphy;
5333 if (!rdev->ops->scan)
5336 if (rdev->scan_req || rdev->scan_msg) {
5341 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5342 n_channels = validate_scan_freqs(
5343 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5349 n_channels = ieee80211_get_num_supported_channels(wiphy);
5352 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5353 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5356 if (n_ssids > wiphy->max_scan_ssids) {
5361 if (info->attrs[NL80211_ATTR_IE])
5362 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5366 if (ie_len > wiphy->max_scan_ie_len) {
5371 request = kzalloc(sizeof(*request)
5372 + sizeof(*request->ssids) * n_ssids
5373 + sizeof(*request->channels) * n_channels
5374 + ie_len, GFP_KERNEL);
5381 request->ssids = (void *)&request->channels[n_channels];
5382 request->n_ssids = n_ssids;
5385 request->ie = (void *)(request->ssids + n_ssids);
5387 request->ie = (void *)(request->channels + n_channels);
5391 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5392 /* user specified, bail out if channel not found */
5393 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5394 struct ieee80211_channel *chan;
5396 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5403 /* ignore disabled channels */
5404 if (chan->flags & IEEE80211_CHAN_DISABLED)
5407 request->channels[i] = chan;
5411 enum ieee80211_band band;
5414 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5416 if (!wiphy->bands[band])
5418 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5419 struct ieee80211_channel *chan;
5421 chan = &wiphy->bands[band]->channels[j];
5423 if (chan->flags & IEEE80211_CHAN_DISABLED)
5426 request->channels[i] = chan;
5437 request->n_channels = i;
5440 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5441 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5442 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5446 request->ssids[i].ssid_len = nla_len(attr);
5447 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5452 if (info->attrs[NL80211_ATTR_IE]) {
5453 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5454 memcpy((void *)request->ie,
5455 nla_data(info->attrs[NL80211_ATTR_IE]),
5459 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5460 if (wiphy->bands[i])
5462 (1 << wiphy->bands[i]->n_bitrates) - 1;
5464 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5465 nla_for_each_nested(attr,
5466 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5468 enum ieee80211_band band = nla_type(attr);
5470 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5475 if (!wiphy->bands[band])
5478 err = ieee80211_get_ratemask(wiphy->bands[band],
5481 &request->rates[band]);
5487 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5488 request->flags = nla_get_u32(
5489 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5490 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5491 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5498 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5500 request->wdev = wdev;
5501 request->wiphy = &rdev->wiphy;
5502 request->scan_start = jiffies;
5504 rdev->scan_req = request;
5505 err = rdev_scan(rdev, request);
5508 nl80211_send_scan_start(rdev, wdev);
5510 dev_hold(wdev->netdev);
5513 rdev->scan_req = NULL;
5521 static int nl80211_start_sched_scan(struct sk_buff *skb,
5522 struct genl_info *info)
5524 struct cfg80211_sched_scan_request *request;
5525 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5526 struct net_device *dev = info->user_ptr[1];
5527 struct nlattr *attr;
5528 struct wiphy *wiphy;
5529 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5531 enum ieee80211_band band;
5533 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5534 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5536 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5537 !rdev->ops->sched_scan_start)
5540 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5543 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5546 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5550 wiphy = &rdev->wiphy;
5552 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5553 n_channels = validate_scan_freqs(
5554 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5558 n_channels = ieee80211_get_num_supported_channels(wiphy);
5561 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5562 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5566 if (n_ssids > wiphy->max_sched_scan_ssids)
5570 * First, count the number of 'real' matchsets. Due to an issue with
5571 * the old implementation, matchsets containing only the RSSI attribute
5572 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5573 * RSSI for all matchsets, rather than their own matchset for reporting
5574 * all APs with a strong RSSI. This is needed to be compatible with
5575 * older userspace that treated a matchset with only the RSSI as the
5576 * global RSSI for all other matchsets - if there are other matchsets.
5578 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5579 nla_for_each_nested(attr,
5580 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5582 struct nlattr *rssi;
5584 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5585 nla_data(attr), nla_len(attr),
5586 nl80211_match_policy);
5589 /* add other standalone attributes here */
5590 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5594 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5596 default_match_rssi = nla_get_s32(rssi);
5600 /* However, if there's no other matchset, add the RSSI one */
5601 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5604 if (n_match_sets > wiphy->max_match_sets)
5607 if (info->attrs[NL80211_ATTR_IE])
5608 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5612 if (ie_len > wiphy->max_sched_scan_ie_len)
5615 if (rdev->sched_scan_req) {
5620 request = kzalloc(sizeof(*request)
5621 + sizeof(*request->ssids) * n_ssids
5622 + sizeof(*request->match_sets) * n_match_sets
5623 + sizeof(*request->channels) * n_channels
5624 + ie_len, GFP_KERNEL);
5631 request->ssids = (void *)&request->channels[n_channels];
5632 request->n_ssids = n_ssids;
5635 request->ie = (void *)(request->ssids + n_ssids);
5637 request->ie = (void *)(request->channels + n_channels);
5642 request->match_sets = (void *)(request->ie + ie_len);
5643 else if (request->ssids)
5644 request->match_sets =
5645 (void *)(request->ssids + n_ssids);
5647 request->match_sets =
5648 (void *)(request->channels + n_channels);
5650 request->n_match_sets = n_match_sets;
5653 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5654 /* user specified, bail out if channel not found */
5655 nla_for_each_nested(attr,
5656 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5658 struct ieee80211_channel *chan;
5660 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5667 /* ignore disabled channels */
5668 if (chan->flags & IEEE80211_CHAN_DISABLED)
5671 request->channels[i] = chan;
5676 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5678 if (!wiphy->bands[band])
5680 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5681 struct ieee80211_channel *chan;
5683 chan = &wiphy->bands[band]->channels[j];
5685 if (chan->flags & IEEE80211_CHAN_DISABLED)
5688 request->channels[i] = chan;
5699 request->n_channels = i;
5702 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5703 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5705 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5709 request->ssids[i].ssid_len = nla_len(attr);
5710 memcpy(request->ssids[i].ssid, nla_data(attr),
5717 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5718 nla_for_each_nested(attr,
5719 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5721 struct nlattr *ssid, *rssi;
5723 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5724 nla_data(attr), nla_len(attr),
5725 nl80211_match_policy);
5728 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5730 if (WARN_ON(i >= n_match_sets)) {
5731 /* this indicates a programming error,
5732 * the loop above should have verified
5739 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5743 memcpy(request->match_sets[i].ssid.ssid,
5744 nla_data(ssid), nla_len(ssid));
5745 request->match_sets[i].ssid.ssid_len =
5747 /* special attribute - old implemenation w/a */
5748 request->match_sets[i].rssi_thold =
5750 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5752 request->match_sets[i].rssi_thold =
5758 /* there was no other matchset, so the RSSI one is alone */
5760 request->match_sets[0].rssi_thold = default_match_rssi;
5762 request->min_rssi_thold = INT_MAX;
5763 for (i = 0; i < n_match_sets; i++)
5764 request->min_rssi_thold =
5765 min(request->match_sets[i].rssi_thold,
5766 request->min_rssi_thold);
5768 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
5772 request->ie_len = ie_len;
5773 memcpy((void *)request->ie,
5774 nla_data(info->attrs[NL80211_ATTR_IE]),
5778 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5779 request->flags = nla_get_u32(
5780 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5781 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5782 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5789 request->wiphy = &rdev->wiphy;
5790 request->interval = interval;
5791 request->scan_start = jiffies;
5793 err = rdev_sched_scan_start(rdev, dev, request);
5795 rdev->sched_scan_req = request;
5796 nl80211_send_sched_scan(rdev, dev,
5797 NL80211_CMD_START_SCHED_SCAN);
5807 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5808 struct genl_info *info)
5810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5812 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5813 !rdev->ops->sched_scan_stop)
5816 return __cfg80211_stop_sched_scan(rdev, false);
5819 static int nl80211_start_radar_detection(struct sk_buff *skb,
5820 struct genl_info *info)
5822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5823 struct net_device *dev = info->user_ptr[1];
5824 struct wireless_dev *wdev = dev->ieee80211_ptr;
5825 struct cfg80211_chan_def chandef;
5826 enum nl80211_dfs_regions dfs_region;
5827 unsigned int cac_time_ms;
5830 dfs_region = reg_get_dfs_region(wdev->wiphy);
5831 if (dfs_region == NL80211_DFS_UNSET)
5834 err = nl80211_parse_chandef(rdev, info, &chandef);
5838 if (netif_carrier_ok(dev))
5841 if (wdev->cac_started)
5844 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
5852 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5855 if (!rdev->ops->start_radar_detection)
5858 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5859 if (WARN_ON(!cac_time_ms))
5860 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5862 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5865 wdev->chandef = chandef;
5866 wdev->cac_started = true;
5867 wdev->cac_start_time = jiffies;
5868 wdev->cac_time_ms = cac_time_ms;
5873 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5875 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5876 struct net_device *dev = info->user_ptr[1];
5877 struct wireless_dev *wdev = dev->ieee80211_ptr;
5878 struct cfg80211_csa_settings params;
5879 /* csa_attrs is defined static to avoid waste of stack size - this
5880 * function is called under RTNL lock, so this should not be a problem.
5882 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5883 u8 radar_detect_width = 0;
5885 bool need_new_beacon = false;
5888 if (!rdev->ops->channel_switch ||
5889 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5892 switch (dev->ieee80211_ptr->iftype) {
5893 case NL80211_IFTYPE_AP:
5894 case NL80211_IFTYPE_P2P_GO:
5895 need_new_beacon = true;
5897 /* useless if AP is not running */
5898 if (!wdev->beacon_interval)
5901 case NL80211_IFTYPE_ADHOC:
5902 if (!wdev->ssid_len)
5905 case NL80211_IFTYPE_MESH_POINT:
5906 if (!wdev->mesh_id_len)
5913 memset(¶ms, 0, sizeof(params));
5915 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5916 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5919 /* only important for AP, IBSS and mesh create IEs internally */
5920 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5923 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5925 if (!need_new_beacon)
5928 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5932 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5933 info->attrs[NL80211_ATTR_CSA_IES],
5938 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5942 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5945 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5946 if (!len || (len % sizeof(u16)))
5949 params.n_counter_offsets_beacon = len / sizeof(u16);
5950 if (rdev->wiphy.max_num_csa_counters &&
5951 (params.n_counter_offsets_beacon >
5952 rdev->wiphy.max_num_csa_counters))
5955 params.counter_offsets_beacon =
5956 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5958 /* sanity checks - counters should fit and be the same */
5959 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
5960 u16 offset = params.counter_offsets_beacon[i];
5962 if (offset >= params.beacon_csa.tail_len)
5965 if (params.beacon_csa.tail[offset] != params.count)
5969 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5970 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5971 if (!len || (len % sizeof(u16)))
5974 params.n_counter_offsets_presp = len / sizeof(u16);
5975 if (rdev->wiphy.max_num_csa_counters &&
5976 (params.n_counter_offsets_beacon >
5977 rdev->wiphy.max_num_csa_counters))
5980 params.counter_offsets_presp =
5981 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5983 /* sanity checks - counters should fit and be the same */
5984 for (i = 0; i < params.n_counter_offsets_presp; i++) {
5985 u16 offset = params.counter_offsets_presp[i];
5987 if (offset >= params.beacon_csa.probe_resp_len)
5990 if (params.beacon_csa.probe_resp[offset] !=
5997 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6001 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
6005 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6012 radar_detect_width = BIT(params.chandef.width);
6013 params.radar_required = true;
6016 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6017 params.block_tx = true;
6020 err = rdev_channel_switch(rdev, dev, ¶ms);
6026 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6028 struct cfg80211_registered_device *rdev,
6029 struct wireless_dev *wdev,
6030 struct cfg80211_internal_bss *intbss)
6032 struct cfg80211_bss *res = &intbss->pub;
6033 const struct cfg80211_bss_ies *ies;
6038 ASSERT_WDEV_LOCK(wdev);
6040 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6041 NL80211_CMD_NEW_SCAN_RESULTS);
6045 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6047 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6048 goto nla_put_failure;
6050 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6051 goto nla_put_failure;
6052 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6053 goto nla_put_failure;
6055 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6057 goto nla_put_failure;
6058 if ((!is_zero_ether_addr(res->bssid) &&
6059 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6060 goto nla_put_failure;
6063 ies = rcu_dereference(res->ies);
6065 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6066 goto fail_unlock_rcu;
6068 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6069 ies->len, ies->data))
6070 goto fail_unlock_rcu;
6072 ies = rcu_dereference(res->beacon_ies);
6074 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6075 goto fail_unlock_rcu;
6076 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6077 ies->len, ies->data))
6078 goto fail_unlock_rcu;
6082 if (res->beacon_interval &&
6083 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6084 goto nla_put_failure;
6085 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6086 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6087 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6088 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6089 jiffies_to_msecs(jiffies - intbss->ts)))
6090 goto nla_put_failure;
6092 switch (rdev->wiphy.signal_type) {
6093 case CFG80211_SIGNAL_TYPE_MBM:
6094 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6095 goto nla_put_failure;
6097 case CFG80211_SIGNAL_TYPE_UNSPEC:
6098 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6099 goto nla_put_failure;
6105 switch (wdev->iftype) {
6106 case NL80211_IFTYPE_P2P_CLIENT:
6107 case NL80211_IFTYPE_STATION:
6108 if (intbss == wdev->current_bss &&
6109 nla_put_u32(msg, NL80211_BSS_STATUS,
6110 NL80211_BSS_STATUS_ASSOCIATED))
6111 goto nla_put_failure;
6113 case NL80211_IFTYPE_ADHOC:
6114 if (intbss == wdev->current_bss &&
6115 nla_put_u32(msg, NL80211_BSS_STATUS,
6116 NL80211_BSS_STATUS_IBSS_JOINED))
6117 goto nla_put_failure;
6123 nla_nest_end(msg, bss);
6125 return genlmsg_end(msg, hdr);
6130 genlmsg_cancel(msg, hdr);
6134 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6136 struct cfg80211_registered_device *rdev;
6137 struct cfg80211_internal_bss *scan;
6138 struct wireless_dev *wdev;
6139 int start = cb->args[2], idx = 0;
6142 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6147 spin_lock_bh(&rdev->bss_lock);
6148 cfg80211_bss_expire(rdev);
6150 cb->seq = rdev->bss_generation;
6152 list_for_each_entry(scan, &rdev->bss_list, list) {
6155 if (nl80211_send_bss(skb, cb,
6156 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6157 rdev, wdev, scan) < 0) {
6163 spin_unlock_bh(&rdev->bss_lock);
6167 nl80211_finish_wdev_dump(rdev);
6172 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6173 int flags, struct net_device *dev,
6174 struct survey_info *survey)
6177 struct nlattr *infoattr;
6179 hdr = nl80211hdr_put(msg, portid, seq, flags,
6180 NL80211_CMD_NEW_SURVEY_RESULTS);
6184 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6185 goto nla_put_failure;
6187 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6189 goto nla_put_failure;
6191 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6192 survey->channel->center_freq))
6193 goto nla_put_failure;
6195 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6196 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6197 goto nla_put_failure;
6198 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6199 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6200 goto nla_put_failure;
6201 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6202 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6203 survey->channel_time))
6204 goto nla_put_failure;
6205 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6206 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6207 survey->channel_time_busy))
6208 goto nla_put_failure;
6209 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6210 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6211 survey->channel_time_ext_busy))
6212 goto nla_put_failure;
6213 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6214 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6215 survey->channel_time_rx))
6216 goto nla_put_failure;
6217 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6218 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6219 survey->channel_time_tx))
6220 goto nla_put_failure;
6222 nla_nest_end(msg, infoattr);
6224 return genlmsg_end(msg, hdr);
6227 genlmsg_cancel(msg, hdr);
6231 static int nl80211_dump_survey(struct sk_buff *skb,
6232 struct netlink_callback *cb)
6234 struct survey_info survey;
6235 struct cfg80211_registered_device *rdev;
6236 struct wireless_dev *wdev;
6237 int survey_idx = cb->args[2];
6240 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6244 if (!wdev->netdev) {
6249 if (!rdev->ops->dump_survey) {
6255 struct ieee80211_channel *chan;
6257 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6263 /* Survey without a channel doesn't make sense */
6264 if (!survey.channel) {
6269 chan = ieee80211_get_channel(&rdev->wiphy,
6270 survey.channel->center_freq);
6271 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6276 if (nl80211_send_survey(skb,
6277 NETLINK_CB(cb->skb).portid,
6278 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6279 wdev->netdev, &survey) < 0)
6285 cb->args[2] = survey_idx;
6288 nl80211_finish_wdev_dump(rdev);
6292 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6294 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6295 NL80211_WPA_VERSION_2));
6298 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6301 struct net_device *dev = info->user_ptr[1];
6302 struct ieee80211_channel *chan;
6303 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6304 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6305 enum nl80211_auth_type auth_type;
6306 struct key_parse key;
6307 bool local_state_change;
6309 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6312 if (!info->attrs[NL80211_ATTR_MAC])
6315 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6318 if (!info->attrs[NL80211_ATTR_SSID])
6321 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6324 err = nl80211_parse_key(info, &key);
6329 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6331 if (!key.p.key || !key.p.key_len)
6333 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6334 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6335 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6336 key.p.key_len != WLAN_KEY_LEN_WEP104))
6348 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6349 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6358 if (!rdev->ops->auth)
6361 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6362 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6365 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6366 chan = nl80211_get_valid_chan(&rdev->wiphy,
6367 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6371 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6372 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6374 if (info->attrs[NL80211_ATTR_IE]) {
6375 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6376 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6379 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6380 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6383 if (auth_type == NL80211_AUTHTYPE_SAE &&
6384 !info->attrs[NL80211_ATTR_SAE_DATA])
6387 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6388 if (auth_type != NL80211_AUTHTYPE_SAE)
6390 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6391 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6392 /* need to include at least Auth Transaction and Status Code */
6393 if (sae_data_len < 4)
6397 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6400 * Since we no longer track auth state, ignore
6401 * requests to only change local state.
6403 if (local_state_change)
6406 wdev_lock(dev->ieee80211_ptr);
6407 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6408 ssid, ssid_len, ie, ie_len,
6409 key.p.key, key.p.key_len, key.idx,
6410 sae_data, sae_data_len);
6411 wdev_unlock(dev->ieee80211_ptr);
6415 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6416 struct genl_info *info,
6417 struct cfg80211_crypto_settings *settings,
6420 memset(settings, 0, sizeof(*settings));
6422 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6424 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6426 proto = nla_get_u16(
6427 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6428 settings->control_port_ethertype = cpu_to_be16(proto);
6429 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6432 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6433 settings->control_port_no_encrypt = true;
6435 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6437 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6441 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6442 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6443 settings->n_ciphers_pairwise = len / sizeof(u32);
6445 if (len % sizeof(u32))
6448 if (settings->n_ciphers_pairwise > cipher_limit)
6451 memcpy(settings->ciphers_pairwise, data, len);
6453 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6454 if (!cfg80211_supported_cipher_suite(
6456 settings->ciphers_pairwise[i]))
6460 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6461 settings->cipher_group =
6462 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6463 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6464 settings->cipher_group))
6468 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6469 settings->wpa_versions =
6470 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6471 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6475 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6479 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6480 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6481 settings->n_akm_suites = len / sizeof(u32);
6483 if (len % sizeof(u32))
6486 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6489 memcpy(settings->akm_suites, data, len);
6495 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6497 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6498 struct net_device *dev = info->user_ptr[1];
6499 struct ieee80211_channel *chan;
6500 struct cfg80211_assoc_request req = {};
6501 const u8 *bssid, *ssid;
6502 int err, ssid_len = 0;
6504 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6507 if (!info->attrs[NL80211_ATTR_MAC] ||
6508 !info->attrs[NL80211_ATTR_SSID] ||
6509 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6512 if (!rdev->ops->assoc)
6515 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6516 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6519 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6521 chan = nl80211_get_valid_chan(&rdev->wiphy,
6522 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6526 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6527 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6529 if (info->attrs[NL80211_ATTR_IE]) {
6530 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6531 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6534 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6535 enum nl80211_mfp mfp =
6536 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6537 if (mfp == NL80211_MFP_REQUIRED)
6539 else if (mfp != NL80211_MFP_NO)
6543 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6544 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6546 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6547 req.flags |= ASSOC_REQ_DISABLE_HT;
6549 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6550 memcpy(&req.ht_capa_mask,
6551 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6552 sizeof(req.ht_capa_mask));
6554 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6555 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6557 memcpy(&req.ht_capa,
6558 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6559 sizeof(req.ht_capa));
6562 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6563 req.flags |= ASSOC_REQ_DISABLE_VHT;
6565 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6566 memcpy(&req.vht_capa_mask,
6567 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6568 sizeof(req.vht_capa_mask));
6570 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6571 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6573 memcpy(&req.vht_capa,
6574 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6575 sizeof(req.vht_capa));
6578 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6580 wdev_lock(dev->ieee80211_ptr);
6581 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6582 ssid, ssid_len, &req);
6583 wdev_unlock(dev->ieee80211_ptr);
6589 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6592 struct net_device *dev = info->user_ptr[1];
6593 const u8 *ie = NULL, *bssid;
6594 int ie_len = 0, err;
6596 bool local_state_change;
6598 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6601 if (!info->attrs[NL80211_ATTR_MAC])
6604 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6607 if (!rdev->ops->deauth)
6610 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6611 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6614 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6616 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6617 if (reason_code == 0) {
6618 /* Reason Code 0 is reserved */
6622 if (info->attrs[NL80211_ATTR_IE]) {
6623 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6624 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6627 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6629 wdev_lock(dev->ieee80211_ptr);
6630 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6631 local_state_change);
6632 wdev_unlock(dev->ieee80211_ptr);
6636 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6639 struct net_device *dev = info->user_ptr[1];
6640 const u8 *ie = NULL, *bssid;
6641 int ie_len = 0, err;
6643 bool local_state_change;
6645 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6648 if (!info->attrs[NL80211_ATTR_MAC])
6651 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6654 if (!rdev->ops->disassoc)
6657 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6658 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6661 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6663 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6664 if (reason_code == 0) {
6665 /* Reason Code 0 is reserved */
6669 if (info->attrs[NL80211_ATTR_IE]) {
6670 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6671 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6674 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6676 wdev_lock(dev->ieee80211_ptr);
6677 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6678 local_state_change);
6679 wdev_unlock(dev->ieee80211_ptr);
6684 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6685 int mcast_rate[IEEE80211_NUM_BANDS],
6688 struct wiphy *wiphy = &rdev->wiphy;
6692 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6693 struct ieee80211_supported_band *sband;
6695 sband = wiphy->bands[band];
6699 for (i = 0; i < sband->n_bitrates; i++) {
6700 if (sband->bitrates[i].bitrate == rateval) {
6701 mcast_rate[band] = i + 1;
6711 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6713 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6714 struct net_device *dev = info->user_ptr[1];
6715 struct cfg80211_ibss_params ibss;
6716 struct wiphy *wiphy;
6717 struct cfg80211_cached_keys *connkeys = NULL;
6720 memset(&ibss, 0, sizeof(ibss));
6722 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6725 if (!info->attrs[NL80211_ATTR_SSID] ||
6726 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6729 ibss.beacon_interval = 100;
6731 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6732 ibss.beacon_interval =
6733 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6734 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6738 if (!rdev->ops->join_ibss)
6741 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6744 wiphy = &rdev->wiphy;
6746 if (info->attrs[NL80211_ATTR_MAC]) {
6747 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6749 if (!is_valid_ether_addr(ibss.bssid))
6752 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6753 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6755 if (info->attrs[NL80211_ATTR_IE]) {
6756 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6757 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6760 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6764 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6765 NL80211_IFTYPE_ADHOC))
6768 switch (ibss.chandef.width) {
6769 case NL80211_CHAN_WIDTH_5:
6770 case NL80211_CHAN_WIDTH_10:
6771 case NL80211_CHAN_WIDTH_20_NOHT:
6773 case NL80211_CHAN_WIDTH_20:
6774 case NL80211_CHAN_WIDTH_40:
6775 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6781 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6782 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6784 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6786 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6788 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6789 struct ieee80211_supported_band *sband =
6790 wiphy->bands[ibss.chandef.chan->band];
6792 err = ieee80211_get_ratemask(sband, rates, n_rates,
6798 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6799 memcpy(&ibss.ht_capa_mask,
6800 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6801 sizeof(ibss.ht_capa_mask));
6803 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6804 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6806 memcpy(&ibss.ht_capa,
6807 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6808 sizeof(ibss.ht_capa));
6811 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6812 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6813 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6816 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6819 connkeys = nl80211_parse_connkeys(rdev,
6820 info->attrs[NL80211_ATTR_KEYS],
6822 if (IS_ERR(connkeys))
6823 return PTR_ERR(connkeys);
6825 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6833 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6835 ibss.userspace_handles_dfs =
6836 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6838 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6844 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6846 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6847 struct net_device *dev = info->user_ptr[1];
6849 if (!rdev->ops->leave_ibss)
6852 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6855 return cfg80211_leave_ibss(rdev, dev, false);
6858 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6860 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6861 struct net_device *dev = info->user_ptr[1];
6862 int mcast_rate[IEEE80211_NUM_BANDS];
6866 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6867 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6870 if (!rdev->ops->set_mcast_rate)
6873 memset(mcast_rate, 0, sizeof(mcast_rate));
6875 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6878 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6879 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6882 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6887 static struct sk_buff *
6888 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6889 int approxlen, u32 portid, u32 seq,
6890 enum nl80211_commands cmd,
6891 enum nl80211_attrs attr,
6892 const struct nl80211_vendor_cmd_info *info,
6895 struct sk_buff *skb;
6897 struct nlattr *data;
6899 skb = nlmsg_new(approxlen + 100, gfp);
6903 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6909 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6910 goto nla_put_failure;
6913 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6915 goto nla_put_failure;
6916 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6918 goto nla_put_failure;
6921 data = nla_nest_start(skb, attr);
6923 ((void **)skb->cb)[0] = rdev;
6924 ((void **)skb->cb)[1] = hdr;
6925 ((void **)skb->cb)[2] = data;
6934 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6935 enum nl80211_commands cmd,
6936 enum nl80211_attrs attr,
6937 int vendor_event_idx,
6938 int approxlen, gfp_t gfp)
6940 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
6941 const struct nl80211_vendor_cmd_info *info;
6944 case NL80211_CMD_TESTMODE:
6945 if (WARN_ON(vendor_event_idx != -1))
6949 case NL80211_CMD_VENDOR:
6950 if (WARN_ON(vendor_event_idx < 0 ||
6951 vendor_event_idx >= wiphy->n_vendor_events))
6953 info = &wiphy->vendor_events[vendor_event_idx];
6960 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6961 cmd, attr, info, gfp);
6963 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6965 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6967 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6968 void *hdr = ((void **)skb->cb)[1];
6969 struct nlattr *data = ((void **)skb->cb)[2];
6970 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6972 /* clear CB data for netlink core to own from now on */
6973 memset(skb->cb, 0, sizeof(skb->cb));
6975 nla_nest_end(skb, data);
6976 genlmsg_end(skb, hdr);
6978 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6979 mcgrp = NL80211_MCGRP_VENDOR;
6981 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6984 EXPORT_SYMBOL(__cfg80211_send_event_skb);
6986 #ifdef CONFIG_NL80211_TESTMODE
6987 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6990 struct wireless_dev *wdev =
6991 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
6994 if (!rdev->ops->testmode_cmd)
6998 err = PTR_ERR(wdev);
7002 } else if (wdev->wiphy != &rdev->wiphy) {
7006 if (!info->attrs[NL80211_ATTR_TESTDATA])
7009 rdev->cur_cmd_info = info;
7010 err = rdev_testmode_cmd(rdev, wdev,
7011 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7012 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7013 rdev->cur_cmd_info = NULL;
7018 static int nl80211_testmode_dump(struct sk_buff *skb,
7019 struct netlink_callback *cb)
7021 struct cfg80211_registered_device *rdev;
7031 * 0 is a valid index, but not valid for args[0],
7032 * so we need to offset by 1.
7034 phy_idx = cb->args[0] - 1;
7036 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7037 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7042 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7043 nl80211_fam.attrbuf);
7045 err = PTR_ERR(rdev);
7048 phy_idx = rdev->wiphy_idx;
7051 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7053 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7057 data = nla_data((void *)cb->args[1]);
7058 data_len = nla_len((void *)cb->args[1]);
7061 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7067 if (!rdev->ops->testmode_dump) {
7073 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7074 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7075 NL80211_CMD_TESTMODE);
7076 struct nlattr *tmdata;
7081 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7082 genlmsg_cancel(skb, hdr);
7086 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7088 genlmsg_cancel(skb, hdr);
7091 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7092 nla_nest_end(skb, tmdata);
7094 if (err == -ENOBUFS || err == -ENOENT) {
7095 genlmsg_cancel(skb, hdr);
7098 genlmsg_cancel(skb, hdr);
7102 genlmsg_end(skb, hdr);
7107 cb->args[0] = phy_idx + 1;
7114 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7117 struct net_device *dev = info->user_ptr[1];
7118 struct cfg80211_connect_params connect;
7119 struct wiphy *wiphy;
7120 struct cfg80211_cached_keys *connkeys = NULL;
7123 memset(&connect, 0, sizeof(connect));
7125 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7128 if (!info->attrs[NL80211_ATTR_SSID] ||
7129 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7132 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7134 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7135 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7136 NL80211_CMD_CONNECT))
7139 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7141 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7143 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7144 NL80211_MAX_NR_CIPHER_SUITES);
7148 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7149 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7152 wiphy = &rdev->wiphy;
7154 connect.bg_scan_period = -1;
7155 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7156 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7157 connect.bg_scan_period =
7158 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7161 if (info->attrs[NL80211_ATTR_MAC])
7162 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7163 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7164 connect.bssid_hint =
7165 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7166 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7167 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7169 if (info->attrs[NL80211_ATTR_IE]) {
7170 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7171 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7174 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7175 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7176 if (connect.mfp != NL80211_MFP_REQUIRED &&
7177 connect.mfp != NL80211_MFP_NO)
7180 connect.mfp = NL80211_MFP_NO;
7183 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7184 connect.channel = nl80211_get_valid_chan(
7185 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7186 if (!connect.channel)
7188 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7189 connect.channel_hint = nl80211_get_valid_chan(
7190 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7191 if (!connect.channel_hint)
7195 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7196 connkeys = nl80211_parse_connkeys(rdev,
7197 info->attrs[NL80211_ATTR_KEYS], NULL);
7198 if (IS_ERR(connkeys))
7199 return PTR_ERR(connkeys);
7202 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7203 connect.flags |= ASSOC_REQ_DISABLE_HT;
7205 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7206 memcpy(&connect.ht_capa_mask,
7207 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7208 sizeof(connect.ht_capa_mask));
7210 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7211 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7215 memcpy(&connect.ht_capa,
7216 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7217 sizeof(connect.ht_capa));
7220 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7221 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7223 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7224 memcpy(&connect.vht_capa_mask,
7225 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7226 sizeof(connect.vht_capa_mask));
7228 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7229 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7233 memcpy(&connect.vht_capa,
7234 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7235 sizeof(connect.vht_capa));
7238 wdev_lock(dev->ieee80211_ptr);
7239 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7240 wdev_unlock(dev->ieee80211_ptr);
7246 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7249 struct net_device *dev = info->user_ptr[1];
7253 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7254 reason = WLAN_REASON_DEAUTH_LEAVING;
7256 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7261 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7262 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7265 wdev_lock(dev->ieee80211_ptr);
7266 ret = cfg80211_disconnect(rdev, dev, reason, true);
7267 wdev_unlock(dev->ieee80211_ptr);
7271 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7273 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7278 if (!info->attrs[NL80211_ATTR_PID])
7281 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7283 net = get_net_ns_by_pid(pid);
7285 return PTR_ERR(net);
7289 /* check if anything to do */
7290 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7291 err = cfg80211_switch_netns(rdev, net);
7297 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7300 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7301 struct cfg80211_pmksa *pmksa) = NULL;
7302 struct net_device *dev = info->user_ptr[1];
7303 struct cfg80211_pmksa pmksa;
7305 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7307 if (!info->attrs[NL80211_ATTR_MAC])
7310 if (!info->attrs[NL80211_ATTR_PMKID])
7313 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7314 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7316 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7317 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7320 switch (info->genlhdr->cmd) {
7321 case NL80211_CMD_SET_PMKSA:
7322 rdev_ops = rdev->ops->set_pmksa;
7324 case NL80211_CMD_DEL_PMKSA:
7325 rdev_ops = rdev->ops->del_pmksa;
7335 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7338 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7341 struct net_device *dev = info->user_ptr[1];
7343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7347 if (!rdev->ops->flush_pmksa)
7350 return rdev_flush_pmksa(rdev, dev);
7353 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7356 struct net_device *dev = info->user_ptr[1];
7357 u8 action_code, dialog_token;
7358 u32 peer_capability = 0;
7363 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7364 !rdev->ops->tdls_mgmt)
7367 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7368 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7369 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7370 !info->attrs[NL80211_ATTR_IE] ||
7371 !info->attrs[NL80211_ATTR_MAC])
7374 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7375 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7376 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7377 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7378 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
7379 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7381 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7383 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7384 dialog_token, status_code, peer_capability,
7386 nla_data(info->attrs[NL80211_ATTR_IE]),
7387 nla_len(info->attrs[NL80211_ATTR_IE]));
7390 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7392 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7393 struct net_device *dev = info->user_ptr[1];
7394 enum nl80211_tdls_operation operation;
7397 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7398 !rdev->ops->tdls_oper)
7401 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7402 !info->attrs[NL80211_ATTR_MAC])
7405 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7406 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7408 return rdev_tdls_oper(rdev, dev, peer, operation);
7411 static int nl80211_remain_on_channel(struct sk_buff *skb,
7412 struct genl_info *info)
7414 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7415 struct wireless_dev *wdev = info->user_ptr[1];
7416 struct cfg80211_chan_def chandef;
7417 struct sk_buff *msg;
7423 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7424 !info->attrs[NL80211_ATTR_DURATION])
7427 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7429 if (!rdev->ops->remain_on_channel ||
7430 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7434 * We should be on that channel for at least a minimum amount of
7435 * time (10ms) but no longer than the driver supports.
7437 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7438 duration > rdev->wiphy.max_remain_on_channel_duration)
7441 err = nl80211_parse_chandef(rdev, info, &chandef);
7445 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7449 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7450 NL80211_CMD_REMAIN_ON_CHANNEL);
7456 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7462 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7463 goto nla_put_failure;
7465 genlmsg_end(msg, hdr);
7467 return genlmsg_reply(msg, info);
7476 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7477 struct genl_info *info)
7479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7480 struct wireless_dev *wdev = info->user_ptr[1];
7483 if (!info->attrs[NL80211_ATTR_COOKIE])
7486 if (!rdev->ops->cancel_remain_on_channel)
7489 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7491 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7494 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7495 u8 *rates, u8 rates_len)
7500 for (i = 0; i < rates_len; i++) {
7501 int rate = (rates[i] & 0x7f) * 5;
7503 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7504 struct ieee80211_rate *srate =
7505 &sband->bitrates[ridx];
7506 if (rate == srate->bitrate) {
7511 if (ridx == sband->n_bitrates)
7512 return 0; /* rate not found */
7518 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7519 u8 *rates, u8 rates_len,
7520 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7524 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7526 for (i = 0; i < rates_len; i++) {
7529 ridx = rates[i] / 8;
7530 rbit = BIT(rates[i] % 8);
7532 /* check validity */
7533 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7536 /* check availability */
7537 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7546 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7550 switch (vht_mcs_map) {
7551 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7553 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7556 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7559 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7569 static void vht_build_mcs_mask(u16 vht_mcs_map,
7570 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7574 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7575 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7580 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7581 struct nl80211_txrate_vht *txrate,
7582 u16 mcs[NL80211_VHT_NSS_MAX])
7584 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7585 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7588 if (!sband->vht_cap.vht_supported)
7591 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7593 /* Build vht_mcs_mask from VHT capabilities */
7594 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7596 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7597 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7598 mcs[i] = txrate->mcs[i];
7606 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7607 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7608 .len = NL80211_MAX_SUPP_RATES },
7609 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7610 .len = NL80211_MAX_SUPP_HT_RATES },
7611 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7612 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7615 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7616 struct genl_info *info)
7618 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7619 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7620 struct cfg80211_bitrate_mask mask;
7622 struct net_device *dev = info->user_ptr[1];
7623 struct nlattr *tx_rates;
7624 struct ieee80211_supported_band *sband;
7627 if (!rdev->ops->set_bitrate_mask)
7630 memset(&mask, 0, sizeof(mask));
7631 /* Default to all rates enabled */
7632 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7633 sband = rdev->wiphy.bands[i];
7638 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7639 memcpy(mask.control[i].ht_mcs,
7640 sband->ht_cap.mcs.rx_mask,
7641 sizeof(mask.control[i].ht_mcs));
7643 if (!sband->vht_cap.vht_supported)
7646 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7647 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7650 /* if no rates are given set it back to the defaults */
7651 if (!info->attrs[NL80211_ATTR_TX_RATES])
7655 * The nested attribute uses enum nl80211_band as the index. This maps
7656 * directly to the enum ieee80211_band values used in cfg80211.
7658 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7659 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7660 enum ieee80211_band band = nla_type(tx_rates);
7663 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7665 sband = rdev->wiphy.bands[band];
7668 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7669 nla_len(tx_rates), nl80211_txattr_policy);
7672 if (tb[NL80211_TXRATE_LEGACY]) {
7673 mask.control[band].legacy = rateset_to_mask(
7675 nla_data(tb[NL80211_TXRATE_LEGACY]),
7676 nla_len(tb[NL80211_TXRATE_LEGACY]));
7677 if ((mask.control[band].legacy == 0) &&
7678 nla_len(tb[NL80211_TXRATE_LEGACY]))
7681 if (tb[NL80211_TXRATE_HT]) {
7682 if (!ht_rateset_to_mask(
7684 nla_data(tb[NL80211_TXRATE_HT]),
7685 nla_len(tb[NL80211_TXRATE_HT]),
7686 mask.control[band].ht_mcs))
7689 if (tb[NL80211_TXRATE_VHT]) {
7690 if (!vht_set_mcs_mask(
7692 nla_data(tb[NL80211_TXRATE_VHT]),
7693 mask.control[band].vht_mcs))
7696 if (tb[NL80211_TXRATE_GI]) {
7697 mask.control[band].gi =
7698 nla_get_u8(tb[NL80211_TXRATE_GI]);
7699 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7703 if (mask.control[band].legacy == 0) {
7704 /* don't allow empty legacy rates if HT or VHT
7705 * are not even supported.
7707 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7708 rdev->wiphy.bands[band]->vht_cap.vht_supported))
7711 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7712 if (mask.control[band].ht_mcs[i])
7715 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7716 if (mask.control[band].vht_mcs[i])
7719 /* legacy and mcs rates may not be both empty */
7725 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7728 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7731 struct wireless_dev *wdev = info->user_ptr[1];
7732 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7734 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7737 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7738 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7740 switch (wdev->iftype) {
7741 case NL80211_IFTYPE_STATION:
7742 case NL80211_IFTYPE_ADHOC:
7743 case NL80211_IFTYPE_P2P_CLIENT:
7744 case NL80211_IFTYPE_AP:
7745 case NL80211_IFTYPE_AP_VLAN:
7746 case NL80211_IFTYPE_MESH_POINT:
7747 case NL80211_IFTYPE_P2P_GO:
7748 case NL80211_IFTYPE_P2P_DEVICE:
7754 /* not much point in registering if we can't reply */
7755 if (!rdev->ops->mgmt_tx)
7758 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7759 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7760 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7763 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7766 struct wireless_dev *wdev = info->user_ptr[1];
7767 struct cfg80211_chan_def chandef;
7771 struct sk_buff *msg = NULL;
7772 struct cfg80211_mgmt_tx_params params = {
7773 .dont_wait_for_ack =
7774 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7777 if (!info->attrs[NL80211_ATTR_FRAME])
7780 if (!rdev->ops->mgmt_tx)
7783 switch (wdev->iftype) {
7784 case NL80211_IFTYPE_P2P_DEVICE:
7785 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7787 case NL80211_IFTYPE_STATION:
7788 case NL80211_IFTYPE_ADHOC:
7789 case NL80211_IFTYPE_P2P_CLIENT:
7790 case NL80211_IFTYPE_AP:
7791 case NL80211_IFTYPE_AP_VLAN:
7792 case NL80211_IFTYPE_MESH_POINT:
7793 case NL80211_IFTYPE_P2P_GO:
7799 if (info->attrs[NL80211_ATTR_DURATION]) {
7800 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7802 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7805 * We should wait on the channel for at least a minimum amount
7806 * of time (10ms) but no longer than the driver supports.
7808 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7809 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7814 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7816 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7819 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7821 /* get the channel if any has been specified, otherwise pass NULL to
7822 * the driver. The latter will use the current one
7824 chandef.chan = NULL;
7825 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7826 err = nl80211_parse_chandef(rdev, info, &chandef);
7831 if (!chandef.chan && params.offchan)
7834 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7835 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7837 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7838 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7841 if (len % sizeof(u16))
7844 params.n_csa_offsets = len / sizeof(u16);
7845 params.csa_offsets =
7846 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7848 /* check that all the offsets fit the frame */
7849 for (i = 0; i < params.n_csa_offsets; i++) {
7850 if (params.csa_offsets[i] >= params.len)
7855 if (!params.dont_wait_for_ack) {
7856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7860 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7868 params.chan = chandef.chan;
7869 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7874 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7875 goto nla_put_failure;
7877 genlmsg_end(msg, hdr);
7878 return genlmsg_reply(msg, info);
7890 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7893 struct wireless_dev *wdev = info->user_ptr[1];
7896 if (!info->attrs[NL80211_ATTR_COOKIE])
7899 if (!rdev->ops->mgmt_tx_cancel_wait)
7902 switch (wdev->iftype) {
7903 case NL80211_IFTYPE_STATION:
7904 case NL80211_IFTYPE_ADHOC:
7905 case NL80211_IFTYPE_P2P_CLIENT:
7906 case NL80211_IFTYPE_AP:
7907 case NL80211_IFTYPE_AP_VLAN:
7908 case NL80211_IFTYPE_P2P_GO:
7909 case NL80211_IFTYPE_P2P_DEVICE:
7915 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7917 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7920 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7922 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7923 struct wireless_dev *wdev;
7924 struct net_device *dev = info->user_ptr[1];
7929 if (!info->attrs[NL80211_ATTR_PS_STATE])
7932 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7934 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7937 wdev = dev->ieee80211_ptr;
7939 if (!rdev->ops->set_power_mgmt)
7942 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7944 if (state == wdev->ps)
7947 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7953 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7956 enum nl80211_ps_state ps_state;
7957 struct wireless_dev *wdev;
7958 struct net_device *dev = info->user_ptr[1];
7959 struct sk_buff *msg;
7963 wdev = dev->ieee80211_ptr;
7965 if (!rdev->ops->set_power_mgmt)
7968 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7972 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7973 NL80211_CMD_GET_POWER_SAVE);
7980 ps_state = NL80211_PS_ENABLED;
7982 ps_state = NL80211_PS_DISABLED;
7984 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7985 goto nla_put_failure;
7987 genlmsg_end(msg, hdr);
7988 return genlmsg_reply(msg, info);
7997 static const struct nla_policy
7998 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
7999 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8000 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8001 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8002 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8003 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8004 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8007 static int nl80211_set_cqm_txe(struct genl_info *info,
8008 u32 rate, u32 pkts, u32 intvl)
8010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8011 struct net_device *dev = info->user_ptr[1];
8012 struct wireless_dev *wdev = dev->ieee80211_ptr;
8014 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8017 if (!rdev->ops->set_cqm_txe_config)
8020 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8021 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8024 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8027 static int nl80211_set_cqm_rssi(struct genl_info *info,
8028 s32 threshold, u32 hysteresis)
8030 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8031 struct net_device *dev = info->user_ptr[1];
8032 struct wireless_dev *wdev = dev->ieee80211_ptr;
8037 /* disabling - hysteresis should also be zero then */
8041 if (!rdev->ops->set_cqm_rssi_config)
8044 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8045 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8048 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8051 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8053 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8057 cqm = info->attrs[NL80211_ATTR_CQM];
8061 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8062 nl80211_attr_cqm_policy);
8066 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8067 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8068 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8069 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8071 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8074 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8075 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8076 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8077 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8078 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8079 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8081 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8087 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8089 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8090 struct net_device *dev = info->user_ptr[1];
8091 struct mesh_config cfg;
8092 struct mesh_setup setup;
8095 /* start with default */
8096 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8097 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8099 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8100 /* and parse parameters if given */
8101 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8106 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8107 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8110 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8111 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8113 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8114 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8115 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8118 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8119 setup.beacon_interval =
8120 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8121 if (setup.beacon_interval < 10 ||
8122 setup.beacon_interval > 10000)
8126 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8128 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8129 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8133 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8134 /* parse additional setup parameters if given */
8135 err = nl80211_parse_mesh_setup(info, &setup);
8141 cfg.auto_open_plinks = false;
8143 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8144 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8148 /* cfg80211_join_mesh() will sort it out */
8149 setup.chandef.chan = NULL;
8152 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8153 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8155 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8156 struct ieee80211_supported_band *sband;
8158 if (!setup.chandef.chan)
8161 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8163 err = ieee80211_get_ratemask(sband, rates, n_rates,
8164 &setup.basic_rates);
8169 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8172 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8174 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8175 struct net_device *dev = info->user_ptr[1];
8177 return cfg80211_leave_mesh(rdev, dev);
8181 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8182 struct cfg80211_registered_device *rdev)
8184 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8185 struct nlattr *nl_pats, *nl_pat;
8188 if (!wowlan->n_patterns)
8191 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8195 for (i = 0; i < wowlan->n_patterns; i++) {
8196 nl_pat = nla_nest_start(msg, i + 1);
8199 pat_len = wowlan->patterns[i].pattern_len;
8200 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8201 wowlan->patterns[i].mask) ||
8202 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8203 wowlan->patterns[i].pattern) ||
8204 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8205 wowlan->patterns[i].pkt_offset))
8207 nla_nest_end(msg, nl_pat);
8209 nla_nest_end(msg, nl_pats);
8214 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8215 struct cfg80211_wowlan_tcp *tcp)
8217 struct nlattr *nl_tcp;
8222 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8226 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8227 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8228 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8229 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8230 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8231 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8232 tcp->payload_len, tcp->payload) ||
8233 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8234 tcp->data_interval) ||
8235 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8236 tcp->wake_len, tcp->wake_data) ||
8237 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8238 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8241 if (tcp->payload_seq.len &&
8242 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8243 sizeof(tcp->payload_seq), &tcp->payload_seq))
8246 if (tcp->payload_tok.len &&
8247 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8248 sizeof(tcp->payload_tok) + tcp->tokens_size,
8252 nla_nest_end(msg, nl_tcp);
8257 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8259 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8260 struct sk_buff *msg;
8262 u32 size = NLMSG_DEFAULT_SIZE;
8264 if (!rdev->wiphy.wowlan)
8267 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8268 /* adjust size to have room for all the data */
8269 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8270 rdev->wiphy.wowlan_config->tcp->payload_len +
8271 rdev->wiphy.wowlan_config->tcp->wake_len +
8272 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8275 msg = nlmsg_new(size, GFP_KERNEL);
8279 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8280 NL80211_CMD_GET_WOWLAN);
8282 goto nla_put_failure;
8284 if (rdev->wiphy.wowlan_config) {
8285 struct nlattr *nl_wowlan;
8287 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8289 goto nla_put_failure;
8291 if ((rdev->wiphy.wowlan_config->any &&
8292 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8293 (rdev->wiphy.wowlan_config->disconnect &&
8294 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8295 (rdev->wiphy.wowlan_config->magic_pkt &&
8296 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8297 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8298 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8299 (rdev->wiphy.wowlan_config->eap_identity_req &&
8300 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8301 (rdev->wiphy.wowlan_config->four_way_handshake &&
8302 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8303 (rdev->wiphy.wowlan_config->rfkill_release &&
8304 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8305 goto nla_put_failure;
8307 if (nl80211_send_wowlan_patterns(msg, rdev))
8308 goto nla_put_failure;
8310 if (nl80211_send_wowlan_tcp(msg,
8311 rdev->wiphy.wowlan_config->tcp))
8312 goto nla_put_failure;
8314 nla_nest_end(msg, nl_wowlan);
8317 genlmsg_end(msg, hdr);
8318 return genlmsg_reply(msg, info);
8325 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8326 struct nlattr *attr,
8327 struct cfg80211_wowlan *trig)
8329 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8330 struct cfg80211_wowlan_tcp *cfg;
8331 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8332 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8334 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8337 if (!rdev->wiphy.wowlan->tcp)
8340 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8341 nla_data(attr), nla_len(attr),
8342 nl80211_wowlan_tcp_policy);
8346 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8347 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8348 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8349 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8350 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8351 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8352 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8353 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8356 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8357 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8360 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8361 rdev->wiphy.wowlan->tcp->data_interval_max ||
8362 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8365 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8366 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8369 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8370 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8373 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8374 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8376 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8377 tokens_size = tokln - sizeof(*tok);
8379 if (!tok->len || tokens_size % tok->len)
8381 if (!rdev->wiphy.wowlan->tcp->tok)
8383 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8385 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8387 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8389 if (tok->offset + tok->len > data_size)
8393 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8394 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8395 if (!rdev->wiphy.wowlan->tcp->seq)
8397 if (seq->len == 0 || seq->len > 4)
8399 if (seq->len + seq->offset > data_size)
8403 size = sizeof(*cfg);
8405 size += wake_size + wake_mask_size;
8406 size += tokens_size;
8408 cfg = kzalloc(size, GFP_KERNEL);
8411 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8412 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8413 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8415 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8416 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8420 /* allocate a socket and port for it and use it */
8421 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8422 IPPROTO_TCP, &cfg->sock, 1);
8427 if (inet_csk_get_port(cfg->sock->sk, port)) {
8428 sock_release(cfg->sock);
8432 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8438 cfg->src_port = port;
8441 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8442 cfg->payload_len = data_size;
8443 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8444 memcpy((void *)cfg->payload,
8445 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8448 cfg->payload_seq = *seq;
8449 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8450 cfg->wake_len = wake_size;
8451 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8452 memcpy((void *)cfg->wake_data,
8453 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8455 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8456 data_size + wake_size;
8457 memcpy((void *)cfg->wake_mask,
8458 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8461 cfg->tokens_size = tokens_size;
8462 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8470 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8473 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8474 struct cfg80211_wowlan new_triggers = {};
8475 struct cfg80211_wowlan *ntrig;
8476 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8478 bool prev_enabled = rdev->wiphy.wowlan_config;
8483 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8484 cfg80211_rdev_free_wowlan(rdev);
8485 rdev->wiphy.wowlan_config = NULL;
8489 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8490 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8491 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8492 nl80211_wowlan_policy);
8496 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8497 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8499 new_triggers.any = true;
8502 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8503 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8505 new_triggers.disconnect = true;
8508 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8509 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8511 new_triggers.magic_pkt = true;
8514 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8517 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8518 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8520 new_triggers.gtk_rekey_failure = true;
8523 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8524 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8526 new_triggers.eap_identity_req = true;
8529 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8530 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8532 new_triggers.four_way_handshake = true;
8535 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8536 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8538 new_triggers.rfkill_release = true;
8541 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8544 int rem, pat_len, mask_len, pkt_offset;
8545 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8547 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8550 if (n_patterns > wowlan->n_patterns)
8553 new_triggers.patterns = kcalloc(n_patterns,
8554 sizeof(new_triggers.patterns[0]),
8556 if (!new_triggers.patterns)
8559 new_triggers.n_patterns = n_patterns;
8562 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8566 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8567 nla_len(pat), NULL);
8569 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8570 !pat_tb[NL80211_PKTPAT_PATTERN])
8572 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8573 mask_len = DIV_ROUND_UP(pat_len, 8);
8574 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8576 if (pat_len > wowlan->pattern_max_len ||
8577 pat_len < wowlan->pattern_min_len)
8580 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8583 pkt_offset = nla_get_u32(
8584 pat_tb[NL80211_PKTPAT_OFFSET]);
8585 if (pkt_offset > wowlan->max_pkt_offset)
8587 new_triggers.patterns[i].pkt_offset = pkt_offset;
8589 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8594 new_triggers.patterns[i].mask = mask_pat;
8595 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8597 mask_pat += mask_len;
8598 new_triggers.patterns[i].pattern = mask_pat;
8599 new_triggers.patterns[i].pattern_len = pat_len;
8601 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8607 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8608 err = nl80211_parse_wowlan_tcp(
8609 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8615 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8620 cfg80211_rdev_free_wowlan(rdev);
8621 rdev->wiphy.wowlan_config = ntrig;
8624 if (rdev->ops->set_wakeup &&
8625 prev_enabled != !!rdev->wiphy.wowlan_config)
8626 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8630 for (i = 0; i < new_triggers.n_patterns; i++)
8631 kfree(new_triggers.patterns[i].mask);
8632 kfree(new_triggers.patterns);
8633 if (new_triggers.tcp && new_triggers.tcp->sock)
8634 sock_release(new_triggers.tcp->sock);
8635 kfree(new_triggers.tcp);
8640 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8641 struct cfg80211_registered_device *rdev)
8643 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8645 struct cfg80211_coalesce_rules *rule;
8647 if (!rdev->coalesce->n_rules)
8650 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8654 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8655 nl_rule = nla_nest_start(msg, i + 1);
8659 rule = &rdev->coalesce->rules[i];
8660 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8664 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8668 nl_pats = nla_nest_start(msg,
8669 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8673 for (j = 0; j < rule->n_patterns; j++) {
8674 nl_pat = nla_nest_start(msg, j + 1);
8677 pat_len = rule->patterns[j].pattern_len;
8678 if (nla_put(msg, NL80211_PKTPAT_MASK,
8679 DIV_ROUND_UP(pat_len, 8),
8680 rule->patterns[j].mask) ||
8681 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8682 rule->patterns[j].pattern) ||
8683 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8684 rule->patterns[j].pkt_offset))
8686 nla_nest_end(msg, nl_pat);
8688 nla_nest_end(msg, nl_pats);
8689 nla_nest_end(msg, nl_rule);
8691 nla_nest_end(msg, nl_rules);
8696 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8698 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8699 struct sk_buff *msg;
8702 if (!rdev->wiphy.coalesce)
8705 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8709 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8710 NL80211_CMD_GET_COALESCE);
8712 goto nla_put_failure;
8714 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8715 goto nla_put_failure;
8717 genlmsg_end(msg, hdr);
8718 return genlmsg_reply(msg, info);
8725 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8727 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8729 struct cfg80211_coalesce_rules *rule;
8734 for (i = 0; i < coalesce->n_rules; i++) {
8735 rule = &coalesce->rules[i];
8736 for (j = 0; j < rule->n_patterns; j++)
8737 kfree(rule->patterns[j].mask);
8738 kfree(rule->patterns);
8740 kfree(coalesce->rules);
8742 rdev->coalesce = NULL;
8745 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8746 struct nlattr *rule,
8747 struct cfg80211_coalesce_rules *new_rule)
8750 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8751 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8752 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8753 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8755 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8756 nla_len(rule), nl80211_coalesce_policy);
8760 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8762 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8763 if (new_rule->delay > coalesce->max_delay)
8766 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8767 new_rule->condition =
8768 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8769 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8770 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8773 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8776 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8779 if (n_patterns > coalesce->n_patterns)
8782 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8784 if (!new_rule->patterns)
8787 new_rule->n_patterns = n_patterns;
8790 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8794 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8795 nla_len(pat), NULL);
8796 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8797 !pat_tb[NL80211_PKTPAT_PATTERN])
8799 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8800 mask_len = DIV_ROUND_UP(pat_len, 8);
8801 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8803 if (pat_len > coalesce->pattern_max_len ||
8804 pat_len < coalesce->pattern_min_len)
8807 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8810 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8811 if (pkt_offset > coalesce->max_pkt_offset)
8813 new_rule->patterns[i].pkt_offset = pkt_offset;
8815 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8819 new_rule->patterns[i].mask = mask_pat;
8820 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8823 mask_pat += mask_len;
8824 new_rule->patterns[i].pattern = mask_pat;
8825 new_rule->patterns[i].pattern_len = pat_len;
8826 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8834 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8837 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8838 struct cfg80211_coalesce new_coalesce = {};
8839 struct cfg80211_coalesce *n_coalesce;
8840 int err, rem_rule, n_rules = 0, i, j;
8841 struct nlattr *rule;
8842 struct cfg80211_coalesce_rules *tmp_rule;
8844 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8847 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8848 cfg80211_rdev_free_coalesce(rdev);
8849 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8853 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8856 if (n_rules > coalesce->n_rules)
8859 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8861 if (!new_coalesce.rules)
8864 new_coalesce.n_rules = n_rules;
8867 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8869 err = nl80211_parse_coalesce_rule(rdev, rule,
8870 &new_coalesce.rules[i]);
8877 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8881 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8886 cfg80211_rdev_free_coalesce(rdev);
8887 rdev->coalesce = n_coalesce;
8891 for (i = 0; i < new_coalesce.n_rules; i++) {
8892 tmp_rule = &new_coalesce.rules[i];
8893 for (j = 0; j < tmp_rule->n_patterns; j++)
8894 kfree(tmp_rule->patterns[j].mask);
8895 kfree(tmp_rule->patterns);
8897 kfree(new_coalesce.rules);
8902 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8904 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8905 struct net_device *dev = info->user_ptr[1];
8906 struct wireless_dev *wdev = dev->ieee80211_ptr;
8907 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8908 struct cfg80211_gtk_rekey_data rekey_data;
8911 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8914 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8915 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8916 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8917 nl80211_rekey_policy);
8921 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8923 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8925 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8928 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8930 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8932 memcpy(rekey_data.replay_ctr,
8933 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8934 NL80211_REPLAY_CTR_LEN);
8937 if (!wdev->current_bss) {
8942 if (!rdev->ops->set_rekey_data) {
8947 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8953 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8954 struct genl_info *info)
8956 struct net_device *dev = info->user_ptr[1];
8957 struct wireless_dev *wdev = dev->ieee80211_ptr;
8959 if (wdev->iftype != NL80211_IFTYPE_AP &&
8960 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8963 if (wdev->ap_unexpected_nlportid)
8966 wdev->ap_unexpected_nlportid = info->snd_portid;
8970 static int nl80211_probe_client(struct sk_buff *skb,
8971 struct genl_info *info)
8973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8974 struct net_device *dev = info->user_ptr[1];
8975 struct wireless_dev *wdev = dev->ieee80211_ptr;
8976 struct sk_buff *msg;
8982 if (wdev->iftype != NL80211_IFTYPE_AP &&
8983 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8986 if (!info->attrs[NL80211_ATTR_MAC])
8989 if (!rdev->ops->probe_client)
8992 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8996 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8997 NL80211_CMD_PROBE_CLIENT);
9003 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9005 err = rdev_probe_client(rdev, dev, addr, &cookie);
9009 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9010 goto nla_put_failure;
9012 genlmsg_end(msg, hdr);
9014 return genlmsg_reply(msg, info);
9023 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9026 struct cfg80211_beacon_registration *reg, *nreg;
9029 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9032 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9036 /* First, check if already registered. */
9037 spin_lock_bh(&rdev->beacon_registrations_lock);
9038 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9039 if (reg->nlportid == info->snd_portid) {
9044 /* Add it to the list */
9045 nreg->nlportid = info->snd_portid;
9046 list_add(&nreg->list, &rdev->beacon_registrations);
9048 spin_unlock_bh(&rdev->beacon_registrations_lock);
9052 spin_unlock_bh(&rdev->beacon_registrations_lock);
9057 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9060 struct wireless_dev *wdev = info->user_ptr[1];
9063 if (!rdev->ops->start_p2p_device)
9066 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9069 if (wdev->p2p_started)
9072 if (rfkill_blocked(rdev->rfkill))
9075 err = rdev_start_p2p_device(rdev, wdev);
9079 wdev->p2p_started = true;
9085 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9088 struct wireless_dev *wdev = info->user_ptr[1];
9090 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9093 if (!rdev->ops->stop_p2p_device)
9096 cfg80211_stop_p2p_device(rdev, wdev);
9101 static int nl80211_get_protocol_features(struct sk_buff *skb,
9102 struct genl_info *info)
9105 struct sk_buff *msg;
9107 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9111 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9112 NL80211_CMD_GET_PROTOCOL_FEATURES);
9114 goto nla_put_failure;
9116 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9117 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9118 goto nla_put_failure;
9120 genlmsg_end(msg, hdr);
9121 return genlmsg_reply(msg, info);
9128 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9131 struct cfg80211_update_ft_ies_params ft_params;
9132 struct net_device *dev = info->user_ptr[1];
9134 if (!rdev->ops->update_ft_ies)
9137 if (!info->attrs[NL80211_ATTR_MDID] ||
9138 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9141 memset(&ft_params, 0, sizeof(ft_params));
9142 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9143 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9144 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9146 return rdev_update_ft_ies(rdev, dev, &ft_params);
9149 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9150 struct genl_info *info)
9152 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9153 struct wireless_dev *wdev = info->user_ptr[1];
9154 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9158 if (!rdev->ops->crit_proto_start)
9161 if (WARN_ON(!rdev->ops->crit_proto_stop))
9164 if (rdev->crit_proto_nlportid)
9167 /* determine protocol if provided */
9168 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9169 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9171 if (proto >= NUM_NL80211_CRIT_PROTO)
9174 /* timeout must be provided */
9175 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9179 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9181 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9184 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9186 rdev->crit_proto_nlportid = info->snd_portid;
9191 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9192 struct genl_info *info)
9194 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9195 struct wireless_dev *wdev = info->user_ptr[1];
9197 if (!rdev->ops->crit_proto_stop)
9200 if (rdev->crit_proto_nlportid) {
9201 rdev->crit_proto_nlportid = 0;
9202 rdev_crit_proto_stop(rdev, wdev);
9207 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9209 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9210 struct wireless_dev *wdev =
9211 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9215 if (!rdev->wiphy.vendor_commands)
9219 err = PTR_ERR(wdev);
9223 } else if (wdev->wiphy != &rdev->wiphy) {
9227 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9228 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9231 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9232 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9233 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9234 const struct wiphy_vendor_command *vcmd;
9238 vcmd = &rdev->wiphy.vendor_commands[i];
9240 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9243 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9244 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9247 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9251 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9253 !netif_running(wdev->netdev))
9255 if (!wdev->netdev && !wdev->p2p_started)
9262 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9263 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9264 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9267 rdev->cur_cmd_info = info;
9268 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9270 rdev->cur_cmd_info = NULL;
9277 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9278 enum nl80211_commands cmd,
9279 enum nl80211_attrs attr,
9282 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9284 if (WARN_ON(!rdev->cur_cmd_info))
9287 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9288 rdev->cur_cmd_info->snd_portid,
9289 rdev->cur_cmd_info->snd_seq,
9290 cmd, attr, NULL, GFP_KERNEL);
9292 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9294 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9296 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9297 void *hdr = ((void **)skb->cb)[1];
9298 struct nlattr *data = ((void **)skb->cb)[2];
9300 /* clear CB data for netlink core to own from now on */
9301 memset(skb->cb, 0, sizeof(skb->cb));
9303 if (WARN_ON(!rdev->cur_cmd_info)) {
9308 nla_nest_end(skb, data);
9309 genlmsg_end(skb, hdr);
9310 return genlmsg_reply(skb, rdev->cur_cmd_info);
9312 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9315 static int nl80211_set_qos_map(struct sk_buff *skb,
9316 struct genl_info *info)
9318 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9319 struct cfg80211_qos_map *qos_map = NULL;
9320 struct net_device *dev = info->user_ptr[1];
9321 u8 *pos, len, num_des, des_len, des;
9324 if (!rdev->ops->set_qos_map)
9327 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9328 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9329 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9331 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9332 len > IEEE80211_QOS_MAP_LEN_MAX)
9335 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9339 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9342 sizeof(struct cfg80211_dscp_exception);
9343 memcpy(qos_map->dscp_exception, pos, des_len);
9344 qos_map->num_des = num_des;
9345 for (des = 0; des < num_des; des++) {
9346 if (qos_map->dscp_exception[des].up > 7) {
9353 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9356 wdev_lock(dev->ieee80211_ptr);
9357 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9359 ret = rdev_set_qos_map(rdev, dev, qos_map);
9360 wdev_unlock(dev->ieee80211_ptr);
9366 #define NL80211_FLAG_NEED_WIPHY 0x01
9367 #define NL80211_FLAG_NEED_NETDEV 0x02
9368 #define NL80211_FLAG_NEED_RTNL 0x04
9369 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9370 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9371 NL80211_FLAG_CHECK_NETDEV_UP)
9372 #define NL80211_FLAG_NEED_WDEV 0x10
9373 /* If a netdev is associated, it must be UP, P2P must be started */
9374 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9375 NL80211_FLAG_CHECK_NETDEV_UP)
9377 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9378 struct genl_info *info)
9380 struct cfg80211_registered_device *rdev;
9381 struct wireless_dev *wdev;
9382 struct net_device *dev;
9383 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9388 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9389 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9393 return PTR_ERR(rdev);
9395 info->user_ptr[0] = rdev;
9396 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9397 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9400 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9405 return PTR_ERR(wdev);
9409 rdev = wiphy_to_rdev(wdev->wiphy);
9411 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9418 info->user_ptr[1] = dev;
9420 info->user_ptr[1] = wdev;
9424 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9425 !netif_running(dev)) {
9432 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9433 if (!wdev->p2p_started) {
9440 info->user_ptr[0] = rdev;
9446 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
9447 struct genl_info *info)
9449 if (info->user_ptr[1]) {
9450 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9451 struct wireless_dev *wdev = info->user_ptr[1];
9454 dev_put(wdev->netdev);
9456 dev_put(info->user_ptr[1]);
9459 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9463 static const struct genl_ops nl80211_ops[] = {
9465 .cmd = NL80211_CMD_GET_WIPHY,
9466 .doit = nl80211_get_wiphy,
9467 .dumpit = nl80211_dump_wiphy,
9468 .done = nl80211_dump_wiphy_done,
9469 .policy = nl80211_policy,
9470 /* can be retrieved by unprivileged users */
9471 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9472 NL80211_FLAG_NEED_RTNL,
9475 .cmd = NL80211_CMD_SET_WIPHY,
9476 .doit = nl80211_set_wiphy,
9477 .policy = nl80211_policy,
9478 .flags = GENL_ADMIN_PERM,
9479 .internal_flags = NL80211_FLAG_NEED_RTNL,
9482 .cmd = NL80211_CMD_GET_INTERFACE,
9483 .doit = nl80211_get_interface,
9484 .dumpit = nl80211_dump_interface,
9485 .policy = nl80211_policy,
9486 /* can be retrieved by unprivileged users */
9487 .internal_flags = NL80211_FLAG_NEED_WDEV |
9488 NL80211_FLAG_NEED_RTNL,
9491 .cmd = NL80211_CMD_SET_INTERFACE,
9492 .doit = nl80211_set_interface,
9493 .policy = nl80211_policy,
9494 .flags = GENL_ADMIN_PERM,
9495 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9496 NL80211_FLAG_NEED_RTNL,
9499 .cmd = NL80211_CMD_NEW_INTERFACE,
9500 .doit = nl80211_new_interface,
9501 .policy = nl80211_policy,
9502 .flags = GENL_ADMIN_PERM,
9503 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9504 NL80211_FLAG_NEED_RTNL,
9507 .cmd = NL80211_CMD_DEL_INTERFACE,
9508 .doit = nl80211_del_interface,
9509 .policy = nl80211_policy,
9510 .flags = GENL_ADMIN_PERM,
9511 .internal_flags = NL80211_FLAG_NEED_WDEV |
9512 NL80211_FLAG_NEED_RTNL,
9515 .cmd = NL80211_CMD_GET_KEY,
9516 .doit = nl80211_get_key,
9517 .policy = nl80211_policy,
9518 .flags = GENL_ADMIN_PERM,
9519 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9520 NL80211_FLAG_NEED_RTNL,
9523 .cmd = NL80211_CMD_SET_KEY,
9524 .doit = nl80211_set_key,
9525 .policy = nl80211_policy,
9526 .flags = GENL_ADMIN_PERM,
9527 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9528 NL80211_FLAG_NEED_RTNL,
9531 .cmd = NL80211_CMD_NEW_KEY,
9532 .doit = nl80211_new_key,
9533 .policy = nl80211_policy,
9534 .flags = GENL_ADMIN_PERM,
9535 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9536 NL80211_FLAG_NEED_RTNL,
9539 .cmd = NL80211_CMD_DEL_KEY,
9540 .doit = nl80211_del_key,
9541 .policy = nl80211_policy,
9542 .flags = GENL_ADMIN_PERM,
9543 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9544 NL80211_FLAG_NEED_RTNL,
9547 .cmd = NL80211_CMD_SET_BEACON,
9548 .policy = nl80211_policy,
9549 .flags = GENL_ADMIN_PERM,
9550 .doit = nl80211_set_beacon,
9551 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9552 NL80211_FLAG_NEED_RTNL,
9555 .cmd = NL80211_CMD_START_AP,
9556 .policy = nl80211_policy,
9557 .flags = GENL_ADMIN_PERM,
9558 .doit = nl80211_start_ap,
9559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9560 NL80211_FLAG_NEED_RTNL,
9563 .cmd = NL80211_CMD_STOP_AP,
9564 .policy = nl80211_policy,
9565 .flags = GENL_ADMIN_PERM,
9566 .doit = nl80211_stop_ap,
9567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9568 NL80211_FLAG_NEED_RTNL,
9571 .cmd = NL80211_CMD_GET_STATION,
9572 .doit = nl80211_get_station,
9573 .dumpit = nl80211_dump_station,
9574 .policy = nl80211_policy,
9575 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9576 NL80211_FLAG_NEED_RTNL,
9579 .cmd = NL80211_CMD_SET_STATION,
9580 .doit = nl80211_set_station,
9581 .policy = nl80211_policy,
9582 .flags = GENL_ADMIN_PERM,
9583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9584 NL80211_FLAG_NEED_RTNL,
9587 .cmd = NL80211_CMD_NEW_STATION,
9588 .doit = nl80211_new_station,
9589 .policy = nl80211_policy,
9590 .flags = GENL_ADMIN_PERM,
9591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9592 NL80211_FLAG_NEED_RTNL,
9595 .cmd = NL80211_CMD_DEL_STATION,
9596 .doit = nl80211_del_station,
9597 .policy = nl80211_policy,
9598 .flags = GENL_ADMIN_PERM,
9599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9600 NL80211_FLAG_NEED_RTNL,
9603 .cmd = NL80211_CMD_GET_MPATH,
9604 .doit = nl80211_get_mpath,
9605 .dumpit = nl80211_dump_mpath,
9606 .policy = nl80211_policy,
9607 .flags = GENL_ADMIN_PERM,
9608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9609 NL80211_FLAG_NEED_RTNL,
9612 .cmd = NL80211_CMD_SET_MPATH,
9613 .doit = nl80211_set_mpath,
9614 .policy = nl80211_policy,
9615 .flags = GENL_ADMIN_PERM,
9616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9617 NL80211_FLAG_NEED_RTNL,
9620 .cmd = NL80211_CMD_NEW_MPATH,
9621 .doit = nl80211_new_mpath,
9622 .policy = nl80211_policy,
9623 .flags = GENL_ADMIN_PERM,
9624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9625 NL80211_FLAG_NEED_RTNL,
9628 .cmd = NL80211_CMD_DEL_MPATH,
9629 .doit = nl80211_del_mpath,
9630 .policy = nl80211_policy,
9631 .flags = GENL_ADMIN_PERM,
9632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9633 NL80211_FLAG_NEED_RTNL,
9636 .cmd = NL80211_CMD_SET_BSS,
9637 .doit = nl80211_set_bss,
9638 .policy = nl80211_policy,
9639 .flags = GENL_ADMIN_PERM,
9640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9641 NL80211_FLAG_NEED_RTNL,
9644 .cmd = NL80211_CMD_GET_REG,
9645 .doit = nl80211_get_reg,
9646 .policy = nl80211_policy,
9647 .internal_flags = NL80211_FLAG_NEED_RTNL,
9648 /* can be retrieved by unprivileged users */
9651 .cmd = NL80211_CMD_SET_REG,
9652 .doit = nl80211_set_reg,
9653 .policy = nl80211_policy,
9654 .flags = GENL_ADMIN_PERM,
9655 .internal_flags = NL80211_FLAG_NEED_RTNL,
9658 .cmd = NL80211_CMD_REQ_SET_REG,
9659 .doit = nl80211_req_set_reg,
9660 .policy = nl80211_policy,
9661 .flags = GENL_ADMIN_PERM,
9664 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9665 .doit = nl80211_get_mesh_config,
9666 .policy = nl80211_policy,
9667 /* can be retrieved by unprivileged users */
9668 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9669 NL80211_FLAG_NEED_RTNL,
9672 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9673 .doit = nl80211_update_mesh_config,
9674 .policy = nl80211_policy,
9675 .flags = GENL_ADMIN_PERM,
9676 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9677 NL80211_FLAG_NEED_RTNL,
9680 .cmd = NL80211_CMD_TRIGGER_SCAN,
9681 .doit = nl80211_trigger_scan,
9682 .policy = nl80211_policy,
9683 .flags = GENL_ADMIN_PERM,
9684 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9685 NL80211_FLAG_NEED_RTNL,
9688 .cmd = NL80211_CMD_GET_SCAN,
9689 .policy = nl80211_policy,
9690 .dumpit = nl80211_dump_scan,
9693 .cmd = NL80211_CMD_START_SCHED_SCAN,
9694 .doit = nl80211_start_sched_scan,
9695 .policy = nl80211_policy,
9696 .flags = GENL_ADMIN_PERM,
9697 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9698 NL80211_FLAG_NEED_RTNL,
9701 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9702 .doit = nl80211_stop_sched_scan,
9703 .policy = nl80211_policy,
9704 .flags = GENL_ADMIN_PERM,
9705 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9706 NL80211_FLAG_NEED_RTNL,
9709 .cmd = NL80211_CMD_AUTHENTICATE,
9710 .doit = nl80211_authenticate,
9711 .policy = nl80211_policy,
9712 .flags = GENL_ADMIN_PERM,
9713 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9714 NL80211_FLAG_NEED_RTNL,
9717 .cmd = NL80211_CMD_ASSOCIATE,
9718 .doit = nl80211_associate,
9719 .policy = nl80211_policy,
9720 .flags = GENL_ADMIN_PERM,
9721 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9722 NL80211_FLAG_NEED_RTNL,
9725 .cmd = NL80211_CMD_DEAUTHENTICATE,
9726 .doit = nl80211_deauthenticate,
9727 .policy = nl80211_policy,
9728 .flags = GENL_ADMIN_PERM,
9729 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9730 NL80211_FLAG_NEED_RTNL,
9733 .cmd = NL80211_CMD_DISASSOCIATE,
9734 .doit = nl80211_disassociate,
9735 .policy = nl80211_policy,
9736 .flags = GENL_ADMIN_PERM,
9737 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9738 NL80211_FLAG_NEED_RTNL,
9741 .cmd = NL80211_CMD_JOIN_IBSS,
9742 .doit = nl80211_join_ibss,
9743 .policy = nl80211_policy,
9744 .flags = GENL_ADMIN_PERM,
9745 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9746 NL80211_FLAG_NEED_RTNL,
9749 .cmd = NL80211_CMD_LEAVE_IBSS,
9750 .doit = nl80211_leave_ibss,
9751 .policy = nl80211_policy,
9752 .flags = GENL_ADMIN_PERM,
9753 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9754 NL80211_FLAG_NEED_RTNL,
9756 #ifdef CONFIG_NL80211_TESTMODE
9758 .cmd = NL80211_CMD_TESTMODE,
9759 .doit = nl80211_testmode_do,
9760 .dumpit = nl80211_testmode_dump,
9761 .policy = nl80211_policy,
9762 .flags = GENL_ADMIN_PERM,
9763 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9764 NL80211_FLAG_NEED_RTNL,
9768 .cmd = NL80211_CMD_CONNECT,
9769 .doit = nl80211_connect,
9770 .policy = nl80211_policy,
9771 .flags = GENL_ADMIN_PERM,
9772 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9773 NL80211_FLAG_NEED_RTNL,
9776 .cmd = NL80211_CMD_DISCONNECT,
9777 .doit = nl80211_disconnect,
9778 .policy = nl80211_policy,
9779 .flags = GENL_ADMIN_PERM,
9780 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9781 NL80211_FLAG_NEED_RTNL,
9784 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9785 .doit = nl80211_wiphy_netns,
9786 .policy = nl80211_policy,
9787 .flags = GENL_ADMIN_PERM,
9788 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9789 NL80211_FLAG_NEED_RTNL,
9792 .cmd = NL80211_CMD_GET_SURVEY,
9793 .policy = nl80211_policy,
9794 .dumpit = nl80211_dump_survey,
9797 .cmd = NL80211_CMD_SET_PMKSA,
9798 .doit = nl80211_setdel_pmksa,
9799 .policy = nl80211_policy,
9800 .flags = GENL_ADMIN_PERM,
9801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9802 NL80211_FLAG_NEED_RTNL,
9805 .cmd = NL80211_CMD_DEL_PMKSA,
9806 .doit = nl80211_setdel_pmksa,
9807 .policy = nl80211_policy,
9808 .flags = GENL_ADMIN_PERM,
9809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9810 NL80211_FLAG_NEED_RTNL,
9813 .cmd = NL80211_CMD_FLUSH_PMKSA,
9814 .doit = nl80211_flush_pmksa,
9815 .policy = nl80211_policy,
9816 .flags = GENL_ADMIN_PERM,
9817 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9818 NL80211_FLAG_NEED_RTNL,
9821 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9822 .doit = nl80211_remain_on_channel,
9823 .policy = nl80211_policy,
9824 .flags = GENL_ADMIN_PERM,
9825 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9826 NL80211_FLAG_NEED_RTNL,
9829 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9830 .doit = nl80211_cancel_remain_on_channel,
9831 .policy = nl80211_policy,
9832 .flags = GENL_ADMIN_PERM,
9833 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9834 NL80211_FLAG_NEED_RTNL,
9837 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9838 .doit = nl80211_set_tx_bitrate_mask,
9839 .policy = nl80211_policy,
9840 .flags = GENL_ADMIN_PERM,
9841 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9842 NL80211_FLAG_NEED_RTNL,
9845 .cmd = NL80211_CMD_REGISTER_FRAME,
9846 .doit = nl80211_register_mgmt,
9847 .policy = nl80211_policy,
9848 .flags = GENL_ADMIN_PERM,
9849 .internal_flags = NL80211_FLAG_NEED_WDEV |
9850 NL80211_FLAG_NEED_RTNL,
9853 .cmd = NL80211_CMD_FRAME,
9854 .doit = nl80211_tx_mgmt,
9855 .policy = nl80211_policy,
9856 .flags = GENL_ADMIN_PERM,
9857 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9858 NL80211_FLAG_NEED_RTNL,
9861 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9862 .doit = nl80211_tx_mgmt_cancel_wait,
9863 .policy = nl80211_policy,
9864 .flags = GENL_ADMIN_PERM,
9865 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9866 NL80211_FLAG_NEED_RTNL,
9869 .cmd = NL80211_CMD_SET_POWER_SAVE,
9870 .doit = nl80211_set_power_save,
9871 .policy = nl80211_policy,
9872 .flags = GENL_ADMIN_PERM,
9873 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9874 NL80211_FLAG_NEED_RTNL,
9877 .cmd = NL80211_CMD_GET_POWER_SAVE,
9878 .doit = nl80211_get_power_save,
9879 .policy = nl80211_policy,
9880 /* can be retrieved by unprivileged users */
9881 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9882 NL80211_FLAG_NEED_RTNL,
9885 .cmd = NL80211_CMD_SET_CQM,
9886 .doit = nl80211_set_cqm,
9887 .policy = nl80211_policy,
9888 .flags = GENL_ADMIN_PERM,
9889 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9890 NL80211_FLAG_NEED_RTNL,
9893 .cmd = NL80211_CMD_SET_CHANNEL,
9894 .doit = nl80211_set_channel,
9895 .policy = nl80211_policy,
9896 .flags = GENL_ADMIN_PERM,
9897 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9898 NL80211_FLAG_NEED_RTNL,
9901 .cmd = NL80211_CMD_SET_WDS_PEER,
9902 .doit = nl80211_set_wds_peer,
9903 .policy = nl80211_policy,
9904 .flags = GENL_ADMIN_PERM,
9905 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9906 NL80211_FLAG_NEED_RTNL,
9909 .cmd = NL80211_CMD_JOIN_MESH,
9910 .doit = nl80211_join_mesh,
9911 .policy = nl80211_policy,
9912 .flags = GENL_ADMIN_PERM,
9913 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9914 NL80211_FLAG_NEED_RTNL,
9917 .cmd = NL80211_CMD_LEAVE_MESH,
9918 .doit = nl80211_leave_mesh,
9919 .policy = nl80211_policy,
9920 .flags = GENL_ADMIN_PERM,
9921 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9922 NL80211_FLAG_NEED_RTNL,
9926 .cmd = NL80211_CMD_GET_WOWLAN,
9927 .doit = nl80211_get_wowlan,
9928 .policy = nl80211_policy,
9929 /* can be retrieved by unprivileged users */
9930 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9931 NL80211_FLAG_NEED_RTNL,
9934 .cmd = NL80211_CMD_SET_WOWLAN,
9935 .doit = nl80211_set_wowlan,
9936 .policy = nl80211_policy,
9937 .flags = GENL_ADMIN_PERM,
9938 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9939 NL80211_FLAG_NEED_RTNL,
9943 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9944 .doit = nl80211_set_rekey_data,
9945 .policy = nl80211_policy,
9946 .flags = GENL_ADMIN_PERM,
9947 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9948 NL80211_FLAG_NEED_RTNL,
9951 .cmd = NL80211_CMD_TDLS_MGMT,
9952 .doit = nl80211_tdls_mgmt,
9953 .policy = nl80211_policy,
9954 .flags = GENL_ADMIN_PERM,
9955 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9956 NL80211_FLAG_NEED_RTNL,
9959 .cmd = NL80211_CMD_TDLS_OPER,
9960 .doit = nl80211_tdls_oper,
9961 .policy = nl80211_policy,
9962 .flags = GENL_ADMIN_PERM,
9963 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9964 NL80211_FLAG_NEED_RTNL,
9967 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9968 .doit = nl80211_register_unexpected_frame,
9969 .policy = nl80211_policy,
9970 .flags = GENL_ADMIN_PERM,
9971 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9972 NL80211_FLAG_NEED_RTNL,
9975 .cmd = NL80211_CMD_PROBE_CLIENT,
9976 .doit = nl80211_probe_client,
9977 .policy = nl80211_policy,
9978 .flags = GENL_ADMIN_PERM,
9979 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9980 NL80211_FLAG_NEED_RTNL,
9983 .cmd = NL80211_CMD_REGISTER_BEACONS,
9984 .doit = nl80211_register_beacons,
9985 .policy = nl80211_policy,
9986 .flags = GENL_ADMIN_PERM,
9987 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9988 NL80211_FLAG_NEED_RTNL,
9991 .cmd = NL80211_CMD_SET_NOACK_MAP,
9992 .doit = nl80211_set_noack_map,
9993 .policy = nl80211_policy,
9994 .flags = GENL_ADMIN_PERM,
9995 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9996 NL80211_FLAG_NEED_RTNL,
9999 .cmd = NL80211_CMD_START_P2P_DEVICE,
10000 .doit = nl80211_start_p2p_device,
10001 .policy = nl80211_policy,
10002 .flags = GENL_ADMIN_PERM,
10003 .internal_flags = NL80211_FLAG_NEED_WDEV |
10004 NL80211_FLAG_NEED_RTNL,
10007 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10008 .doit = nl80211_stop_p2p_device,
10009 .policy = nl80211_policy,
10010 .flags = GENL_ADMIN_PERM,
10011 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10012 NL80211_FLAG_NEED_RTNL,
10015 .cmd = NL80211_CMD_SET_MCAST_RATE,
10016 .doit = nl80211_set_mcast_rate,
10017 .policy = nl80211_policy,
10018 .flags = GENL_ADMIN_PERM,
10019 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10020 NL80211_FLAG_NEED_RTNL,
10023 .cmd = NL80211_CMD_SET_MAC_ACL,
10024 .doit = nl80211_set_mac_acl,
10025 .policy = nl80211_policy,
10026 .flags = GENL_ADMIN_PERM,
10027 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10028 NL80211_FLAG_NEED_RTNL,
10031 .cmd = NL80211_CMD_RADAR_DETECT,
10032 .doit = nl80211_start_radar_detection,
10033 .policy = nl80211_policy,
10034 .flags = GENL_ADMIN_PERM,
10035 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10036 NL80211_FLAG_NEED_RTNL,
10039 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10040 .doit = nl80211_get_protocol_features,
10041 .policy = nl80211_policy,
10044 .cmd = NL80211_CMD_UPDATE_FT_IES,
10045 .doit = nl80211_update_ft_ies,
10046 .policy = nl80211_policy,
10047 .flags = GENL_ADMIN_PERM,
10048 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10049 NL80211_FLAG_NEED_RTNL,
10052 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10053 .doit = nl80211_crit_protocol_start,
10054 .policy = nl80211_policy,
10055 .flags = GENL_ADMIN_PERM,
10056 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10057 NL80211_FLAG_NEED_RTNL,
10060 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10061 .doit = nl80211_crit_protocol_stop,
10062 .policy = nl80211_policy,
10063 .flags = GENL_ADMIN_PERM,
10064 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10065 NL80211_FLAG_NEED_RTNL,
10068 .cmd = NL80211_CMD_GET_COALESCE,
10069 .doit = nl80211_get_coalesce,
10070 .policy = nl80211_policy,
10071 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10072 NL80211_FLAG_NEED_RTNL,
10075 .cmd = NL80211_CMD_SET_COALESCE,
10076 .doit = nl80211_set_coalesce,
10077 .policy = nl80211_policy,
10078 .flags = GENL_ADMIN_PERM,
10079 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10080 NL80211_FLAG_NEED_RTNL,
10083 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10084 .doit = nl80211_channel_switch,
10085 .policy = nl80211_policy,
10086 .flags = GENL_ADMIN_PERM,
10087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10088 NL80211_FLAG_NEED_RTNL,
10091 .cmd = NL80211_CMD_VENDOR,
10092 .doit = nl80211_vendor_cmd,
10093 .policy = nl80211_policy,
10094 .flags = GENL_ADMIN_PERM,
10095 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10096 NL80211_FLAG_NEED_RTNL,
10099 .cmd = NL80211_CMD_SET_QOS_MAP,
10100 .doit = nl80211_set_qos_map,
10101 .policy = nl80211_policy,
10102 .flags = GENL_ADMIN_PERM,
10103 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10104 NL80211_FLAG_NEED_RTNL,
10108 /* notification functions */
10110 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10111 enum nl80211_commands cmd)
10113 struct sk_buff *msg;
10114 struct nl80211_dump_wiphy_state state = {};
10116 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10117 cmd != NL80211_CMD_DEL_WIPHY);
10119 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10123 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
10128 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10129 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10132 static int nl80211_add_scan_req(struct sk_buff *msg,
10133 struct cfg80211_registered_device *rdev)
10135 struct cfg80211_scan_request *req = rdev->scan_req;
10136 struct nlattr *nest;
10142 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10144 goto nla_put_failure;
10145 for (i = 0; i < req->n_ssids; i++) {
10146 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10147 goto nla_put_failure;
10149 nla_nest_end(msg, nest);
10151 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10153 goto nla_put_failure;
10154 for (i = 0; i < req->n_channels; i++) {
10155 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10156 goto nla_put_failure;
10158 nla_nest_end(msg, nest);
10161 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10162 goto nla_put_failure;
10165 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10166 goto nla_put_failure;
10173 static int nl80211_send_scan_msg(struct sk_buff *msg,
10174 struct cfg80211_registered_device *rdev,
10175 struct wireless_dev *wdev,
10176 u32 portid, u32 seq, int flags,
10181 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10185 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10186 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10187 wdev->netdev->ifindex)) ||
10188 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10189 goto nla_put_failure;
10191 /* ignore errors and send incomplete event anyway */
10192 nl80211_add_scan_req(msg, rdev);
10194 return genlmsg_end(msg, hdr);
10197 genlmsg_cancel(msg, hdr);
10202 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10203 struct cfg80211_registered_device *rdev,
10204 struct net_device *netdev,
10205 u32 portid, u32 seq, int flags, u32 cmd)
10209 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10213 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10214 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10215 goto nla_put_failure;
10217 return genlmsg_end(msg, hdr);
10220 genlmsg_cancel(msg, hdr);
10224 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10225 struct wireless_dev *wdev)
10227 struct sk_buff *msg;
10229 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10233 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10234 NL80211_CMD_TRIGGER_SCAN) < 0) {
10239 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10240 NL80211_MCGRP_SCAN, GFP_KERNEL);
10243 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10244 struct wireless_dev *wdev, bool aborted)
10246 struct sk_buff *msg;
10248 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10252 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10253 aborted ? NL80211_CMD_SCAN_ABORTED :
10254 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10262 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10263 struct sk_buff *msg)
10268 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10269 NL80211_MCGRP_SCAN, GFP_KERNEL);
10272 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10273 struct net_device *netdev)
10275 struct sk_buff *msg;
10277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10281 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10282 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10287 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10288 NL80211_MCGRP_SCAN, GFP_KERNEL);
10291 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10292 struct net_device *netdev, u32 cmd)
10294 struct sk_buff *msg;
10296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10300 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10305 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10306 NL80211_MCGRP_SCAN, GFP_KERNEL);
10310 * This can happen on global regulatory changes or device specific settings
10311 * based on custom world regulatory domains.
10313 void nl80211_send_reg_change_event(struct regulatory_request *request)
10315 struct sk_buff *msg;
10318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10322 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10328 /* Userspace can always count this one always being set */
10329 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10330 goto nla_put_failure;
10332 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10333 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10334 NL80211_REGDOM_TYPE_WORLD))
10335 goto nla_put_failure;
10336 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10337 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10338 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10339 goto nla_put_failure;
10340 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10341 request->intersect) {
10342 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10343 NL80211_REGDOM_TYPE_INTERSECTION))
10344 goto nla_put_failure;
10346 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10347 NL80211_REGDOM_TYPE_COUNTRY) ||
10348 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10350 goto nla_put_failure;
10353 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10354 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10355 goto nla_put_failure;
10357 genlmsg_end(msg, hdr);
10360 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10361 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10367 genlmsg_cancel(msg, hdr);
10371 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10372 struct net_device *netdev,
10373 const u8 *buf, size_t len,
10374 enum nl80211_commands cmd, gfp_t gfp)
10376 struct sk_buff *msg;
10379 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10383 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10389 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10390 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10391 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10392 goto nla_put_failure;
10394 genlmsg_end(msg, hdr);
10396 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10397 NL80211_MCGRP_MLME, gfp);
10401 genlmsg_cancel(msg, hdr);
10405 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10406 struct net_device *netdev, const u8 *buf,
10407 size_t len, gfp_t gfp)
10409 nl80211_send_mlme_event(rdev, netdev, buf, len,
10410 NL80211_CMD_AUTHENTICATE, gfp);
10413 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10414 struct net_device *netdev, const u8 *buf,
10415 size_t len, gfp_t gfp)
10417 nl80211_send_mlme_event(rdev, netdev, buf, len,
10418 NL80211_CMD_ASSOCIATE, gfp);
10421 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10422 struct net_device *netdev, const u8 *buf,
10423 size_t len, gfp_t gfp)
10425 nl80211_send_mlme_event(rdev, netdev, buf, len,
10426 NL80211_CMD_DEAUTHENTICATE, gfp);
10429 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10430 struct net_device *netdev, const u8 *buf,
10431 size_t len, gfp_t gfp)
10433 nl80211_send_mlme_event(rdev, netdev, buf, len,
10434 NL80211_CMD_DISASSOCIATE, gfp);
10437 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10440 struct wireless_dev *wdev = dev->ieee80211_ptr;
10441 struct wiphy *wiphy = wdev->wiphy;
10442 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10443 const struct ieee80211_mgmt *mgmt = (void *)buf;
10446 if (WARN_ON(len < 2))
10449 if (ieee80211_is_deauth(mgmt->frame_control))
10450 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10452 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10454 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10455 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
10457 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10459 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10460 struct net_device *netdev, int cmd,
10461 const u8 *addr, gfp_t gfp)
10463 struct sk_buff *msg;
10466 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10470 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10476 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10478 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10479 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10480 goto nla_put_failure;
10482 genlmsg_end(msg, hdr);
10484 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10485 NL80211_MCGRP_MLME, gfp);
10489 genlmsg_cancel(msg, hdr);
10493 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10494 struct net_device *netdev, const u8 *addr,
10497 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10501 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10502 struct net_device *netdev, const u8 *addr,
10505 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10509 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10510 struct net_device *netdev, const u8 *bssid,
10511 const u8 *req_ie, size_t req_ie_len,
10512 const u8 *resp_ie, size_t resp_ie_len,
10513 u16 status, gfp_t gfp)
10515 struct sk_buff *msg;
10518 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10522 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10529 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10530 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10531 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10533 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10535 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10536 goto nla_put_failure;
10538 genlmsg_end(msg, hdr);
10540 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10541 NL80211_MCGRP_MLME, gfp);
10545 genlmsg_cancel(msg, hdr);
10550 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10551 struct net_device *netdev, const u8 *bssid,
10552 const u8 *req_ie, size_t req_ie_len,
10553 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10555 struct sk_buff *msg;
10558 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10562 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10568 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10569 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10570 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10572 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10574 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10575 goto nla_put_failure;
10577 genlmsg_end(msg, hdr);
10579 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10580 NL80211_MCGRP_MLME, gfp);
10584 genlmsg_cancel(msg, hdr);
10589 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10590 struct net_device *netdev, u16 reason,
10591 const u8 *ie, size_t ie_len, bool from_ap)
10593 struct sk_buff *msg;
10596 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10600 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10606 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10607 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10608 (from_ap && reason &&
10609 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10611 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10612 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10613 goto nla_put_failure;
10615 genlmsg_end(msg, hdr);
10617 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10618 NL80211_MCGRP_MLME, GFP_KERNEL);
10622 genlmsg_cancel(msg, hdr);
10627 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10628 struct net_device *netdev, const u8 *bssid,
10631 struct sk_buff *msg;
10634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10638 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10644 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10645 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10646 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10647 goto nla_put_failure;
10649 genlmsg_end(msg, hdr);
10651 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10652 NL80211_MCGRP_MLME, gfp);
10656 genlmsg_cancel(msg, hdr);
10660 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10661 const u8* ie, u8 ie_len, gfp_t gfp)
10663 struct wireless_dev *wdev = dev->ieee80211_ptr;
10664 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
10665 struct sk_buff *msg;
10668 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10671 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10673 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10677 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10683 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10684 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10685 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10687 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10688 goto nla_put_failure;
10690 genlmsg_end(msg, hdr);
10692 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10693 NL80211_MCGRP_MLME, gfp);
10697 genlmsg_cancel(msg, hdr);
10700 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10702 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10703 struct net_device *netdev, const u8 *addr,
10704 enum nl80211_key_type key_type, int key_id,
10705 const u8 *tsc, gfp_t gfp)
10707 struct sk_buff *msg;
10710 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10714 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10720 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10721 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10722 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10723 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10725 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10726 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10727 goto nla_put_failure;
10729 genlmsg_end(msg, hdr);
10731 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10732 NL80211_MCGRP_MLME, gfp);
10736 genlmsg_cancel(msg, hdr);
10740 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10741 struct ieee80211_channel *channel_before,
10742 struct ieee80211_channel *channel_after)
10744 struct sk_buff *msg;
10746 struct nlattr *nl_freq;
10748 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10752 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10759 * Since we are applying the beacon hint to a wiphy we know its
10760 * wiphy_idx is valid
10762 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10763 goto nla_put_failure;
10766 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10768 goto nla_put_failure;
10769 if (nl80211_msg_put_channel(msg, channel_before, false))
10770 goto nla_put_failure;
10771 nla_nest_end(msg, nl_freq);
10774 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10776 goto nla_put_failure;
10777 if (nl80211_msg_put_channel(msg, channel_after, false))
10778 goto nla_put_failure;
10779 nla_nest_end(msg, nl_freq);
10781 genlmsg_end(msg, hdr);
10784 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10785 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10791 genlmsg_cancel(msg, hdr);
10795 static void nl80211_send_remain_on_chan_event(
10796 int cmd, struct cfg80211_registered_device *rdev,
10797 struct wireless_dev *wdev, u64 cookie,
10798 struct ieee80211_channel *chan,
10799 unsigned int duration, gfp_t gfp)
10801 struct sk_buff *msg;
10804 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10808 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10814 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10815 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10816 wdev->netdev->ifindex)) ||
10817 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10818 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
10819 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10820 NL80211_CHAN_NO_HT) ||
10821 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10822 goto nla_put_failure;
10824 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10825 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10826 goto nla_put_failure;
10828 genlmsg_end(msg, hdr);
10830 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10831 NL80211_MCGRP_MLME, gfp);
10835 genlmsg_cancel(msg, hdr);
10839 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10840 struct ieee80211_channel *chan,
10841 unsigned int duration, gfp_t gfp)
10843 struct wiphy *wiphy = wdev->wiphy;
10844 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10846 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
10847 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
10848 rdev, wdev, cookie, chan,
10851 EXPORT_SYMBOL(cfg80211_ready_on_channel);
10853 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10854 struct ieee80211_channel *chan,
10857 struct wiphy *wiphy = wdev->wiphy;
10858 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10860 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
10861 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10862 rdev, wdev, cookie, chan, 0, gfp);
10864 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
10866 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10867 struct station_info *sinfo, gfp_t gfp)
10869 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10870 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10871 struct sk_buff *msg;
10873 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10875 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10879 if (nl80211_send_station(msg, 0, 0, 0,
10880 rdev, dev, mac_addr, sinfo) < 0) {
10885 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10886 NL80211_MCGRP_MLME, gfp);
10888 EXPORT_SYMBOL(cfg80211_new_sta);
10890 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
10892 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10893 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10894 struct sk_buff *msg;
10897 trace_cfg80211_del_sta(dev, mac_addr);
10899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10903 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10909 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10910 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10911 goto nla_put_failure;
10913 genlmsg_end(msg, hdr);
10915 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10916 NL80211_MCGRP_MLME, gfp);
10920 genlmsg_cancel(msg, hdr);
10923 EXPORT_SYMBOL(cfg80211_del_sta);
10925 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10926 enum nl80211_connect_failed_reason reason,
10929 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10930 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10931 struct sk_buff *msg;
10934 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10938 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10944 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10945 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10946 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
10947 goto nla_put_failure;
10949 genlmsg_end(msg, hdr);
10951 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10952 NL80211_MCGRP_MLME, gfp);
10956 genlmsg_cancel(msg, hdr);
10959 EXPORT_SYMBOL(cfg80211_conn_failed);
10961 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10962 const u8 *addr, gfp_t gfp)
10964 struct wireless_dev *wdev = dev->ieee80211_ptr;
10965 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
10966 struct sk_buff *msg;
10968 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10973 msg = nlmsg_new(100, gfp);
10977 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10983 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10984 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10985 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10986 goto nla_put_failure;
10988 genlmsg_end(msg, hdr);
10989 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10993 genlmsg_cancel(msg, hdr);
10998 bool cfg80211_rx_spurious_frame(struct net_device *dev,
10999 const u8 *addr, gfp_t gfp)
11001 struct wireless_dev *wdev = dev->ieee80211_ptr;
11004 trace_cfg80211_rx_spurious_frame(dev, addr);
11006 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11007 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11008 trace_cfg80211_return_bool(false);
11011 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11013 trace_cfg80211_return_bool(ret);
11016 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11018 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11019 const u8 *addr, gfp_t gfp)
11021 struct wireless_dev *wdev = dev->ieee80211_ptr;
11024 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11026 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11027 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11028 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11029 trace_cfg80211_return_bool(false);
11032 ret = __nl80211_unexpected_frame(dev,
11033 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11035 trace_cfg80211_return_bool(ret);
11038 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
11040 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
11041 struct wireless_dev *wdev, u32 nlportid,
11042 int freq, int sig_dbm,
11043 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
11045 struct net_device *netdev = wdev->netdev;
11046 struct sk_buff *msg;
11049 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11053 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11059 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11060 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11061 netdev->ifindex)) ||
11062 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11063 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11065 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11066 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11068 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
11069 goto nla_put_failure;
11071 genlmsg_end(msg, hdr);
11073 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11076 genlmsg_cancel(msg, hdr);
11081 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11082 const u8 *buf, size_t len, bool ack, gfp_t gfp)
11084 struct wiphy *wiphy = wdev->wiphy;
11085 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11086 struct net_device *netdev = wdev->netdev;
11087 struct sk_buff *msg;
11090 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11092 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11096 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
11102 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11103 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11104 netdev->ifindex)) ||
11105 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11106 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11107 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11108 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11109 goto nla_put_failure;
11111 genlmsg_end(msg, hdr);
11113 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11114 NL80211_MCGRP_MLME, gfp);
11118 genlmsg_cancel(msg, hdr);
11121 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11123 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11124 enum nl80211_cqm_rssi_threshold_event rssi_event,
11127 struct wireless_dev *wdev = dev->ieee80211_ptr;
11128 struct wiphy *wiphy = wdev->wiphy;
11129 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11130 struct sk_buff *msg;
11131 struct nlattr *pinfoattr;
11134 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11136 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11140 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11146 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11147 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11148 goto nla_put_failure;
11150 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11152 goto nla_put_failure;
11154 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11156 goto nla_put_failure;
11158 nla_nest_end(msg, pinfoattr);
11160 genlmsg_end(msg, hdr);
11162 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11163 NL80211_MCGRP_MLME, gfp);
11167 genlmsg_cancel(msg, hdr);
11170 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11172 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11173 struct net_device *netdev, const u8 *bssid,
11174 const u8 *replay_ctr, gfp_t gfp)
11176 struct sk_buff *msg;
11177 struct nlattr *rekey_attr;
11180 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11184 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11190 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11191 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11192 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11193 goto nla_put_failure;
11195 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11197 goto nla_put_failure;
11199 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11200 NL80211_REPLAY_CTR_LEN, replay_ctr))
11201 goto nla_put_failure;
11203 nla_nest_end(msg, rekey_attr);
11205 genlmsg_end(msg, hdr);
11207 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11208 NL80211_MCGRP_MLME, gfp);
11212 genlmsg_cancel(msg, hdr);
11216 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11217 const u8 *replay_ctr, gfp_t gfp)
11219 struct wireless_dev *wdev = dev->ieee80211_ptr;
11220 struct wiphy *wiphy = wdev->wiphy;
11221 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11223 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11224 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11226 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11229 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11230 struct net_device *netdev, int index,
11231 const u8 *bssid, bool preauth, gfp_t gfp)
11233 struct sk_buff *msg;
11234 struct nlattr *attr;
11237 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11241 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11247 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11248 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11249 goto nla_put_failure;
11251 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11253 goto nla_put_failure;
11255 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11256 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11258 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11259 goto nla_put_failure;
11261 nla_nest_end(msg, attr);
11263 genlmsg_end(msg, hdr);
11265 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11266 NL80211_MCGRP_MLME, gfp);
11270 genlmsg_cancel(msg, hdr);
11274 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11275 const u8 *bssid, bool preauth, gfp_t gfp)
11277 struct wireless_dev *wdev = dev->ieee80211_ptr;
11278 struct wiphy *wiphy = wdev->wiphy;
11279 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11281 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11282 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11284 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11286 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11287 struct net_device *netdev,
11288 struct cfg80211_chan_def *chandef,
11291 struct sk_buff *msg;
11294 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11298 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11304 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11305 goto nla_put_failure;
11307 if (nl80211_send_chandef(msg, chandef))
11308 goto nla_put_failure;
11310 genlmsg_end(msg, hdr);
11312 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11313 NL80211_MCGRP_MLME, gfp);
11317 genlmsg_cancel(msg, hdr);
11321 void cfg80211_ch_switch_notify(struct net_device *dev,
11322 struct cfg80211_chan_def *chandef)
11324 struct wireless_dev *wdev = dev->ieee80211_ptr;
11325 struct wiphy *wiphy = wdev->wiphy;
11326 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11328 ASSERT_WDEV_LOCK(wdev);
11330 trace_cfg80211_ch_switch_notify(dev, chandef);
11332 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11333 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11334 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11335 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11338 wdev->chandef = *chandef;
11339 wdev->preset_chandef = *chandef;
11340 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
11342 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11344 void cfg80211_cqm_txe_notify(struct net_device *dev,
11345 const u8 *peer, u32 num_packets,
11346 u32 rate, u32 intvl, gfp_t gfp)
11348 struct wireless_dev *wdev = dev->ieee80211_ptr;
11349 struct wiphy *wiphy = wdev->wiphy;
11350 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11351 struct sk_buff *msg;
11352 struct nlattr *pinfoattr;
11355 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11359 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11365 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11366 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11367 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11368 goto nla_put_failure;
11370 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11372 goto nla_put_failure;
11374 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11375 goto nla_put_failure;
11377 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11378 goto nla_put_failure;
11380 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11381 goto nla_put_failure;
11383 nla_nest_end(msg, pinfoattr);
11385 genlmsg_end(msg, hdr);
11387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11388 NL80211_MCGRP_MLME, gfp);
11392 genlmsg_cancel(msg, hdr);
11395 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11398 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11399 const struct cfg80211_chan_def *chandef,
11400 enum nl80211_radar_event event,
11401 struct net_device *netdev, gfp_t gfp)
11403 struct sk_buff *msg;
11406 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11410 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11416 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11417 goto nla_put_failure;
11419 /* NOP and radar events don't need a netdev parameter */
11421 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11423 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11424 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11425 goto nla_put_failure;
11428 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11429 goto nla_put_failure;
11431 if (nl80211_send_chandef(msg, chandef))
11432 goto nla_put_failure;
11434 genlmsg_end(msg, hdr);
11436 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11437 NL80211_MCGRP_MLME, gfp);
11441 genlmsg_cancel(msg, hdr);
11445 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11446 const u8 *peer, u32 num_packets, gfp_t gfp)
11448 struct wireless_dev *wdev = dev->ieee80211_ptr;
11449 struct wiphy *wiphy = wdev->wiphy;
11450 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11451 struct sk_buff *msg;
11452 struct nlattr *pinfoattr;
11455 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11457 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11461 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11467 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11468 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11469 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11470 goto nla_put_failure;
11472 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11474 goto nla_put_failure;
11476 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11477 goto nla_put_failure;
11479 nla_nest_end(msg, pinfoattr);
11481 genlmsg_end(msg, hdr);
11483 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11484 NL80211_MCGRP_MLME, gfp);
11488 genlmsg_cancel(msg, hdr);
11491 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11493 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11494 u64 cookie, bool acked, gfp_t gfp)
11496 struct wireless_dev *wdev = dev->ieee80211_ptr;
11497 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11498 struct sk_buff *msg;
11501 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11503 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11508 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11514 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11515 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11516 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11517 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11518 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11519 goto nla_put_failure;
11521 genlmsg_end(msg, hdr);
11523 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11524 NL80211_MCGRP_MLME, gfp);
11528 genlmsg_cancel(msg, hdr);
11531 EXPORT_SYMBOL(cfg80211_probe_status);
11533 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11534 const u8 *frame, size_t len,
11535 int freq, int sig_dbm)
11537 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11538 struct sk_buff *msg;
11540 struct cfg80211_beacon_registration *reg;
11542 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11544 spin_lock_bh(&rdev->beacon_registrations_lock);
11545 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11546 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11548 spin_unlock_bh(&rdev->beacon_registrations_lock);
11552 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11554 goto nla_put_failure;
11556 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11558 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11560 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11561 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11562 goto nla_put_failure;
11564 genlmsg_end(msg, hdr);
11566 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11568 spin_unlock_bh(&rdev->beacon_registrations_lock);
11572 spin_unlock_bh(&rdev->beacon_registrations_lock);
11574 genlmsg_cancel(msg, hdr);
11577 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11580 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11581 struct cfg80211_wowlan_wakeup *wakeup,
11584 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11585 struct sk_buff *msg;
11589 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11592 size += wakeup->packet_present_len;
11594 msg = nlmsg_new(size, gfp);
11598 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11602 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11603 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11606 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11607 wdev->netdev->ifindex))
11611 struct nlattr *reasons;
11613 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11617 if (wakeup->disconnect &&
11618 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11620 if (wakeup->magic_pkt &&
11621 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11623 if (wakeup->gtk_rekey_failure &&
11624 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11626 if (wakeup->eap_identity_req &&
11627 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11629 if (wakeup->four_way_handshake &&
11630 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11632 if (wakeup->rfkill_release &&
11633 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11636 if (wakeup->pattern_idx >= 0 &&
11637 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11638 wakeup->pattern_idx))
11641 if (wakeup->tcp_match &&
11642 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11645 if (wakeup->tcp_connlost &&
11646 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11649 if (wakeup->tcp_nomoretokens &&
11651 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11654 if (wakeup->packet) {
11655 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11656 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11658 if (!wakeup->packet_80211) {
11660 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11662 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11665 if (wakeup->packet_len &&
11666 nla_put_u32(msg, len_attr, wakeup->packet_len))
11669 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11674 nla_nest_end(msg, reasons);
11677 genlmsg_end(msg, hdr);
11679 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11680 NL80211_MCGRP_MLME, gfp);
11686 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11689 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11690 enum nl80211_tdls_operation oper,
11691 u16 reason_code, gfp_t gfp)
11693 struct wireless_dev *wdev = dev->ieee80211_ptr;
11694 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11695 struct sk_buff *msg;
11698 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11701 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11711 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11713 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11714 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11715 (reason_code > 0 &&
11716 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11717 goto nla_put_failure;
11719 genlmsg_end(msg, hdr);
11721 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11722 NL80211_MCGRP_MLME, gfp);
11726 genlmsg_cancel(msg, hdr);
11729 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11731 static int nl80211_netlink_notify(struct notifier_block * nb,
11732 unsigned long state,
11735 struct netlink_notify *notify = _notify;
11736 struct cfg80211_registered_device *rdev;
11737 struct wireless_dev *wdev;
11738 struct cfg80211_beacon_registration *reg, *tmp;
11740 if (state != NETLINK_URELEASE)
11741 return NOTIFY_DONE;
11745 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11746 bool schedule_destroy_work = false;
11748 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
11749 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11751 if (wdev->owner_nlportid == notify->portid)
11752 schedule_destroy_work = true;
11755 spin_lock_bh(&rdev->beacon_registrations_lock);
11756 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11758 if (reg->nlportid == notify->portid) {
11759 list_del(®->list);
11764 spin_unlock_bh(&rdev->beacon_registrations_lock);
11766 if (schedule_destroy_work) {
11767 struct cfg80211_iface_destroy *destroy;
11769 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11771 destroy->nlportid = notify->portid;
11772 spin_lock(&rdev->destroy_list_lock);
11773 list_add(&destroy->list, &rdev->destroy_list);
11774 spin_unlock(&rdev->destroy_list_lock);
11775 schedule_work(&rdev->destroy_work);
11785 static struct notifier_block nl80211_netlink_notifier = {
11786 .notifier_call = nl80211_netlink_notify,
11789 void cfg80211_ft_event(struct net_device *netdev,
11790 struct cfg80211_ft_event_params *ft_event)
11792 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11793 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11794 struct sk_buff *msg;
11797 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11799 if (!ft_event->target_ap)
11802 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11806 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11810 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11811 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11812 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11815 if (ft_event->ies &&
11816 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11818 if (ft_event->ric_ies &&
11819 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11820 ft_event->ric_ies))
11823 genlmsg_end(msg, hdr);
11825 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11826 NL80211_MCGRP_MLME, GFP_KERNEL);
11831 EXPORT_SYMBOL(cfg80211_ft_event);
11833 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11835 struct cfg80211_registered_device *rdev;
11836 struct sk_buff *msg;
11840 rdev = wiphy_to_rdev(wdev->wiphy);
11841 if (!rdev->crit_proto_nlportid)
11844 nlportid = rdev->crit_proto_nlportid;
11845 rdev->crit_proto_nlportid = 0;
11847 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11851 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11853 goto nla_put_failure;
11855 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11856 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11857 goto nla_put_failure;
11859 genlmsg_end(msg, hdr);
11861 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11866 genlmsg_cancel(msg, hdr);
11870 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11872 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
11874 struct wiphy *wiphy = wdev->wiphy;
11875 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11876 struct sk_buff *msg;
11879 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11883 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
11887 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11888 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
11889 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11892 genlmsg_end(msg, hdr);
11894 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
11895 NL80211_MCGRP_MLME, GFP_KERNEL);
11901 /* initialisation/exit functions */
11903 int nl80211_init(void)
11907 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11912 err = netlink_register_notifier(&nl80211_netlink_notifier);
11918 genl_unregister_family(&nl80211_fam);
11922 void nl80211_exit(void)
11924 netlink_unregister_notifier(&nl80211_netlink_notifier);
11925 genl_unregister_family(&nl80211_fam);