2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
8 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <linux/list.h>
12 #include <linux/if_ether.h>
13 #include <linux/ieee80211.h>
14 #include <linux/nl80211.h>
15 #include <linux/rtnetlink.h>
16 #include <linux/netlink.h>
17 #include <linux/etherdevice.h>
18 #include <net/net_namespace.h>
19 #include <net/genetlink.h>
20 #include <net/cfg80211.h>
22 #include <net/inet_connection_sock.h>
28 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
29 struct genl_info *info,
30 struct cfg80211_crypto_settings *settings,
33 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
34 struct genl_info *info);
35 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
38 /* the netlink family */
39 static struct genl_family nl80211_fam = {
40 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
41 .name = NL80211_GENL_NAME, /* have users key off the name instead */
42 .hdrsize = 0, /* no private header */
43 .version = 1, /* no particular meaning now */
44 .maxattr = NL80211_ATTR_MAX,
46 .pre_doit = nl80211_pre_doit,
47 .post_doit = nl80211_post_doit,
50 /* multicast groups */
51 enum nl80211_multicast_groups {
54 NL80211_MCGRP_REGULATORY,
57 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
60 static const struct genl_multicast_group nl80211_mcgrps[] = {
61 [NL80211_MCGRP_CONFIG] = { .name = "config", },
62 [NL80211_MCGRP_SCAN] = { .name = "scan", },
63 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
64 [NL80211_MCGRP_MLME] = { .name = "mlme", },
65 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
66 #ifdef CONFIG_NL80211_TESTMODE
67 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
71 /* returns ERR_PTR values */
72 static struct wireless_dev *
73 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
75 struct cfg80211_registered_device *rdev;
76 struct wireless_dev *result = NULL;
77 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
78 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
85 if (!have_ifidx && !have_wdev_id)
86 return ERR_PTR(-EINVAL);
89 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
91 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
92 wiphy_idx = wdev_id >> 32;
95 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
96 struct wireless_dev *wdev;
98 if (wiphy_net(&rdev->wiphy) != netns)
101 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
104 list_for_each_entry(wdev, &rdev->wdev_list, list) {
105 if (have_ifidx && wdev->netdev &&
106 wdev->netdev->ifindex == ifidx) {
110 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
122 return ERR_PTR(-ENODEV);
125 static struct cfg80211_registered_device *
126 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
128 struct cfg80211_registered_device *rdev = NULL, *tmp;
129 struct net_device *netdev;
133 if (!attrs[NL80211_ATTR_WIPHY] &&
134 !attrs[NL80211_ATTR_IFINDEX] &&
135 !attrs[NL80211_ATTR_WDEV])
136 return ERR_PTR(-EINVAL);
138 if (attrs[NL80211_ATTR_WIPHY])
139 rdev = cfg80211_rdev_by_wiphy_idx(
140 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
142 if (attrs[NL80211_ATTR_WDEV]) {
143 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
144 struct wireless_dev *wdev;
147 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
149 /* make sure wdev exists */
150 list_for_each_entry(wdev, &tmp->wdev_list, list) {
151 if (wdev->identifier != (u32)wdev_id)
160 if (rdev && tmp != rdev)
161 return ERR_PTR(-EINVAL);
166 if (attrs[NL80211_ATTR_IFINDEX]) {
167 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
168 netdev = __dev_get_by_index(netns, ifindex);
170 if (netdev->ieee80211_ptr)
172 netdev->ieee80211_ptr->wiphy);
176 /* not wireless device -- return error */
178 return ERR_PTR(-EINVAL);
180 /* mismatch -- return error */
181 if (rdev && tmp != rdev)
182 return ERR_PTR(-EINVAL);
189 return ERR_PTR(-ENODEV);
191 if (netns != wiphy_net(&rdev->wiphy))
192 return ERR_PTR(-ENODEV);
198 * This function returns a pointer to the driver
199 * that the genl_info item that is passed refers to.
201 * The result of this can be a PTR_ERR and hence must
202 * be checked with IS_ERR() for errors.
204 static struct cfg80211_registered_device *
205 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
207 return __cfg80211_rdev_from_attrs(netns, info->attrs);
210 /* policy for the attributes */
211 static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
212 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
213 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
215 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
217 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
218 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
219 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
220 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
223 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
224 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
226 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
229 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
230 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
231 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
233 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
234 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
236 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
237 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
238 .len = WLAN_MAX_KEY_LEN },
239 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
240 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
241 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
242 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
243 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
245 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
246 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
248 .len = IEEE80211_MAX_DATA_LEN },
249 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
252 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
253 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
255 .len = NL80211_MAX_SUPP_RATES },
256 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
257 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
258 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
259 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
260 .len = IEEE80211_MAX_MESH_ID_LEN },
261 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
263 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
264 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
266 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
267 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
268 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
270 .len = NL80211_MAX_SUPP_RATES },
271 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
273 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
274 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
276 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
278 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
279 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
280 .len = IEEE80211_MAX_DATA_LEN },
281 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
282 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
285 .len = IEEE80211_MAX_SSID_LEN },
286 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
287 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
288 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
289 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
290 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
291 [NL80211_ATTR_STA_FLAGS2] = {
292 .len = sizeof(struct nl80211_sta_flag_update),
294 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
295 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
296 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
297 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
299 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
300 [NL80211_ATTR_PID] = { .type = NLA_U32 },
301 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
302 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
303 .len = WLAN_PMKID_LEN },
304 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
305 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
306 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
307 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
308 .len = IEEE80211_MAX_DATA_LEN },
309 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
310 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
311 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
312 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
313 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
314 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
315 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
316 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
317 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
319 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
320 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
321 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
322 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
323 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
324 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
325 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
326 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
327 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
328 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
329 .len = IEEE80211_MAX_DATA_LEN },
330 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
333 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
334 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
335 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
336 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
337 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
339 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
340 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
341 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
342 .len = IEEE80211_MAX_DATA_LEN },
343 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
344 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
345 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
346 .len = NL80211_HT_CAPABILITY_LEN
348 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
349 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
350 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
351 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
352 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
353 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
354 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
355 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
356 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
357 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
358 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
359 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
360 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
361 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
362 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
363 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
364 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
365 .len = NL80211_VHT_CAPABILITY_LEN,
367 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
368 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
369 .len = IEEE80211_MAX_DATA_LEN },
370 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
371 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
372 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
373 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
374 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
375 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
376 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
377 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
378 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
379 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
380 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
381 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
382 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
383 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
384 .len = IEEE80211_QOS_MAP_LEN_MAX },
387 /* policy for the key attributes */
388 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
389 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
390 [NL80211_KEY_IDX] = { .type = NLA_U8 },
391 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
392 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
393 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
394 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
395 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
396 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
399 /* policy for the key default flags */
400 static const struct nla_policy
401 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
402 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
403 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
406 /* policy for WoWLAN attributes */
407 static const struct nla_policy
408 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
409 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
410 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
411 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
412 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
413 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
414 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
415 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
416 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
417 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
420 static const struct nla_policy
421 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
422 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
423 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
424 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
425 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
426 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
427 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
428 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
429 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
431 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
432 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
434 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
435 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
436 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
439 /* policy for coalesce rule attributes */
440 static const struct nla_policy
441 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
442 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
443 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
444 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
447 /* policy for GTK rekey offload attributes */
448 static const struct nla_policy
449 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
450 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
451 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
452 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
455 static const struct nla_policy
456 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
457 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
458 .len = IEEE80211_MAX_SSID_LEN },
459 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
462 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
463 struct netlink_callback *cb,
464 struct cfg80211_registered_device **rdev,
465 struct wireless_dev **wdev)
472 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
473 nl80211_fam.attrbuf, nl80211_fam.maxattr,
478 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
479 nl80211_fam.attrbuf);
481 err = PTR_ERR(*wdev);
484 *rdev = wiphy_to_dev((*wdev)->wiphy);
485 /* 0 is the first index - add 1 to parse only once */
486 cb->args[0] = (*rdev)->wiphy_idx + 1;
487 cb->args[1] = (*wdev)->identifier;
489 /* subtract the 1 again here */
490 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
491 struct wireless_dev *tmp;
497 *rdev = wiphy_to_dev(wiphy);
500 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
501 if (tmp->identifier == cb->args[1]) {
519 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
525 static bool is_valid_ie_attr(const struct nlattr *attr)
533 pos = nla_data(attr);
554 /* message building helper */
555 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
558 /* since there is no private header just add the generic one */
559 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
562 static int nl80211_msg_put_channel(struct sk_buff *msg,
563 struct ieee80211_channel *chan,
566 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
568 goto nla_put_failure;
570 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
571 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
572 goto nla_put_failure;
573 if (chan->flags & IEEE80211_CHAN_NO_IR) {
574 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
575 goto nla_put_failure;
576 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
577 goto nla_put_failure;
579 if (chan->flags & IEEE80211_CHAN_RADAR) {
580 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
581 goto nla_put_failure;
585 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
587 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
589 goto nla_put_failure;
590 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
592 goto nla_put_failure;
597 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
598 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
599 goto nla_put_failure;
600 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
601 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
602 goto nla_put_failure;
603 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
604 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
605 goto nla_put_failure;
606 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
607 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
608 goto nla_put_failure;
611 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
612 DBM_TO_MBM(chan->max_power)))
613 goto nla_put_failure;
621 /* netlink command implementations */
628 bool def_uni, def_multi;
631 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
633 struct nlattr *tb[NL80211_KEY_MAX + 1];
634 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
639 k->def = !!tb[NL80211_KEY_DEFAULT];
640 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
649 if (tb[NL80211_KEY_IDX])
650 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
652 if (tb[NL80211_KEY_DATA]) {
653 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
654 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
657 if (tb[NL80211_KEY_SEQ]) {
658 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
659 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
662 if (tb[NL80211_KEY_CIPHER])
663 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
665 if (tb[NL80211_KEY_TYPE]) {
666 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
667 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
671 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
672 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
673 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
674 tb[NL80211_KEY_DEFAULT_TYPES],
675 nl80211_key_default_policy);
679 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
680 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
686 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
688 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
689 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
690 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
693 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
694 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
695 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
698 if (info->attrs[NL80211_ATTR_KEY_IDX])
699 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
701 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
702 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
704 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
705 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
714 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
715 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
716 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
720 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
721 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
722 int err = nla_parse_nested(
723 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
724 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
725 nl80211_key_default_policy);
729 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
730 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
736 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
740 memset(k, 0, sizeof(*k));
744 if (info->attrs[NL80211_ATTR_KEY])
745 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
747 err = nl80211_parse_key_old(info, k);
752 if (k->def && k->defmgmt)
756 if (k->def_uni || !k->def_multi)
762 if (k->idx < 4 || k->idx > 5)
765 if (k->idx < 0 || k->idx > 3)
768 if (k->idx < 0 || k->idx > 5)
776 static struct cfg80211_cached_keys *
777 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
778 struct nlattr *keys, bool *no_ht)
780 struct key_parse parse;
782 struct cfg80211_cached_keys *result;
783 int rem, err, def = 0;
785 result = kzalloc(sizeof(*result), GFP_KERNEL);
787 return ERR_PTR(-ENOMEM);
790 result->defmgmt = -1;
792 nla_for_each_nested(key, keys, rem) {
793 memset(&parse, 0, sizeof(parse));
796 err = nl80211_parse_key_new(key, &parse);
802 if (parse.idx < 0 || parse.idx > 4)
808 result->def = parse.idx;
809 if (!parse.def_uni || !parse.def_multi)
811 } else if (parse.defmgmt)
813 err = cfg80211_validate_key_settings(rdev, &parse.p,
814 parse.idx, false, NULL);
817 result->params[parse.idx].cipher = parse.p.cipher;
818 result->params[parse.idx].key_len = parse.p.key_len;
819 result->params[parse.idx].key = result->data[parse.idx];
820 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
822 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
823 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
835 static int nl80211_key_allowed(struct wireless_dev *wdev)
837 ASSERT_WDEV_LOCK(wdev);
839 switch (wdev->iftype) {
840 case NL80211_IFTYPE_AP:
841 case NL80211_IFTYPE_AP_VLAN:
842 case NL80211_IFTYPE_P2P_GO:
843 case NL80211_IFTYPE_MESH_POINT:
845 case NL80211_IFTYPE_ADHOC:
846 case NL80211_IFTYPE_STATION:
847 case NL80211_IFTYPE_P2P_CLIENT:
848 if (!wdev->current_bss)
858 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
860 struct nlattr *nl_modes = nla_nest_start(msg, attr);
864 goto nla_put_failure;
868 if ((ifmodes & 1) && nla_put_flag(msg, i))
869 goto nla_put_failure;
874 nla_nest_end(msg, nl_modes);
881 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
885 struct nlattr *nl_combis;
888 nl_combis = nla_nest_start(msg,
889 NL80211_ATTR_INTERFACE_COMBINATIONS);
891 goto nla_put_failure;
893 for (i = 0; i < wiphy->n_iface_combinations; i++) {
894 const struct ieee80211_iface_combination *c;
895 struct nlattr *nl_combi, *nl_limits;
897 c = &wiphy->iface_combinations[i];
899 nl_combi = nla_nest_start(msg, i + 1);
901 goto nla_put_failure;
903 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
905 goto nla_put_failure;
907 for (j = 0; j < c->n_limits; j++) {
908 struct nlattr *nl_limit;
910 nl_limit = nla_nest_start(msg, j + 1);
912 goto nla_put_failure;
913 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
915 goto nla_put_failure;
916 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
918 goto nla_put_failure;
919 nla_nest_end(msg, nl_limit);
922 nla_nest_end(msg, nl_limits);
924 if (c->beacon_int_infra_match &&
925 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
926 goto nla_put_failure;
927 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
928 c->num_different_channels) ||
929 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
931 goto nla_put_failure;
933 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
934 c->radar_detect_widths))
935 goto nla_put_failure;
937 nla_nest_end(msg, nl_combi);
940 nla_nest_end(msg, nl_combis);
948 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
951 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
952 struct nlattr *nl_tcp;
957 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
961 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
962 tcp->data_payload_max))
965 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
966 tcp->data_payload_max))
969 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
972 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
973 sizeof(*tcp->tok), tcp->tok))
976 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
977 tcp->data_interval_max))
980 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
981 tcp->wake_payload_max))
984 nla_nest_end(msg, nl_tcp);
988 static int nl80211_send_wowlan(struct sk_buff *msg,
989 struct cfg80211_registered_device *dev,
992 struct nlattr *nl_wowlan;
994 if (!dev->wiphy.wowlan)
997 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1001 if (((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1002 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1003 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1004 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1005 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1006 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1007 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1008 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1009 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1010 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1011 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1012 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1013 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1014 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1015 ((dev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1016 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1019 if (dev->wiphy.wowlan->n_patterns) {
1020 struct nl80211_pattern_support pat = {
1021 .max_patterns = dev->wiphy.wowlan->n_patterns,
1022 .min_pattern_len = dev->wiphy.wowlan->pattern_min_len,
1023 .max_pattern_len = dev->wiphy.wowlan->pattern_max_len,
1024 .max_pkt_offset = dev->wiphy.wowlan->max_pkt_offset,
1027 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1032 if (large && nl80211_send_wowlan_tcp_caps(dev, msg))
1035 nla_nest_end(msg, nl_wowlan);
1041 static int nl80211_send_coalesce(struct sk_buff *msg,
1042 struct cfg80211_registered_device *dev)
1044 struct nl80211_coalesce_rule_support rule;
1046 if (!dev->wiphy.coalesce)
1049 rule.max_rules = dev->wiphy.coalesce->n_rules;
1050 rule.max_delay = dev->wiphy.coalesce->max_delay;
1051 rule.pat.max_patterns = dev->wiphy.coalesce->n_patterns;
1052 rule.pat.min_pattern_len = dev->wiphy.coalesce->pattern_min_len;
1053 rule.pat.max_pattern_len = dev->wiphy.coalesce->pattern_max_len;
1054 rule.pat.max_pkt_offset = dev->wiphy.coalesce->max_pkt_offset;
1056 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1062 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1063 struct ieee80211_supported_band *sband)
1065 struct nlattr *nl_rates, *nl_rate;
1066 struct ieee80211_rate *rate;
1070 if (sband->ht_cap.ht_supported &&
1071 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1072 sizeof(sband->ht_cap.mcs),
1073 &sband->ht_cap.mcs) ||
1074 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1075 sband->ht_cap.cap) ||
1076 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1077 sband->ht_cap.ampdu_factor) ||
1078 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1079 sband->ht_cap.ampdu_density)))
1083 if (sband->vht_cap.vht_supported &&
1084 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1085 sizeof(sband->vht_cap.vht_mcs),
1086 &sband->vht_cap.vht_mcs) ||
1087 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1088 sband->vht_cap.cap)))
1092 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1096 for (i = 0; i < sband->n_bitrates; i++) {
1097 nl_rate = nla_nest_start(msg, i);
1101 rate = &sband->bitrates[i];
1102 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1105 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1107 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1110 nla_nest_end(msg, nl_rate);
1113 nla_nest_end(msg, nl_rates);
1119 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1120 const struct ieee80211_txrx_stypes *mgmt_stypes)
1123 struct nlattr *nl_ftypes, *nl_ifs;
1124 enum nl80211_iftype ift;
1130 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1134 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1135 nl_ftypes = nla_nest_start(msg, ift);
1139 stypes = mgmt_stypes[ift].tx;
1142 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1143 (i << 4) | IEEE80211_FTYPE_MGMT))
1148 nla_nest_end(msg, nl_ftypes);
1151 nla_nest_end(msg, nl_ifs);
1153 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1157 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1158 nl_ftypes = nla_nest_start(msg, ift);
1162 stypes = mgmt_stypes[ift].rx;
1165 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1166 (i << 4) | IEEE80211_FTYPE_MGMT))
1171 nla_nest_end(msg, nl_ftypes);
1173 nla_nest_end(msg, nl_ifs);
1178 struct nl80211_dump_wiphy_state {
1181 long split_start, band_start, chan_start;
1185 static int nl80211_send_wiphy(struct cfg80211_registered_device *dev,
1186 struct sk_buff *msg, u32 portid, u32 seq,
1187 int flags, struct nl80211_dump_wiphy_state *state)
1190 struct nlattr *nl_bands, *nl_band;
1191 struct nlattr *nl_freqs, *nl_freq;
1192 struct nlattr *nl_cmds;
1193 enum ieee80211_band band;
1194 struct ieee80211_channel *chan;
1196 const struct ieee80211_txrx_stypes *mgmt_stypes =
1197 dev->wiphy.mgmt_stypes;
1200 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_WIPHY);
1204 if (WARN_ON(!state))
1207 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, dev->wiphy_idx) ||
1208 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1209 wiphy_name(&dev->wiphy)) ||
1210 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1211 cfg80211_rdev_list_generation))
1212 goto nla_put_failure;
1214 switch (state->split_start) {
1216 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1217 dev->wiphy.retry_short) ||
1218 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1219 dev->wiphy.retry_long) ||
1220 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1221 dev->wiphy.frag_threshold) ||
1222 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1223 dev->wiphy.rts_threshold) ||
1224 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1225 dev->wiphy.coverage_class) ||
1226 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1227 dev->wiphy.max_scan_ssids) ||
1228 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1229 dev->wiphy.max_sched_scan_ssids) ||
1230 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1231 dev->wiphy.max_scan_ie_len) ||
1232 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1233 dev->wiphy.max_sched_scan_ie_len) ||
1234 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1235 dev->wiphy.max_match_sets))
1236 goto nla_put_failure;
1238 if ((dev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1239 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1240 goto nla_put_failure;
1241 if ((dev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1242 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1243 goto nla_put_failure;
1244 if ((dev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1245 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1246 goto nla_put_failure;
1247 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1248 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1249 goto nla_put_failure;
1250 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1251 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1252 goto nla_put_failure;
1253 if ((dev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1254 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1255 goto nla_put_failure;
1256 state->split_start++;
1260 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1261 sizeof(u32) * dev->wiphy.n_cipher_suites,
1262 dev->wiphy.cipher_suites))
1263 goto nla_put_failure;
1265 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1266 dev->wiphy.max_num_pmkids))
1267 goto nla_put_failure;
1269 if ((dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1270 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1271 goto nla_put_failure;
1273 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1274 dev->wiphy.available_antennas_tx) ||
1275 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1276 dev->wiphy.available_antennas_rx))
1277 goto nla_put_failure;
1279 if ((dev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1280 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1281 dev->wiphy.probe_resp_offload))
1282 goto nla_put_failure;
1284 if ((dev->wiphy.available_antennas_tx ||
1285 dev->wiphy.available_antennas_rx) &&
1286 dev->ops->get_antenna) {
1287 u32 tx_ant = 0, rx_ant = 0;
1289 res = rdev_get_antenna(dev, &tx_ant, &rx_ant);
1291 if (nla_put_u32(msg,
1292 NL80211_ATTR_WIPHY_ANTENNA_TX,
1295 NL80211_ATTR_WIPHY_ANTENNA_RX,
1297 goto nla_put_failure;
1301 state->split_start++;
1305 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1306 dev->wiphy.interface_modes))
1307 goto nla_put_failure;
1308 state->split_start++;
1312 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1314 goto nla_put_failure;
1316 for (band = state->band_start;
1317 band < IEEE80211_NUM_BANDS; band++) {
1318 struct ieee80211_supported_band *sband;
1320 sband = dev->wiphy.bands[band];
1325 nl_band = nla_nest_start(msg, band);
1327 goto nla_put_failure;
1329 switch (state->chan_start) {
1331 if (nl80211_send_band_rateinfo(msg, sband))
1332 goto nla_put_failure;
1333 state->chan_start++;
1337 /* add frequencies */
1338 nl_freqs = nla_nest_start(
1339 msg, NL80211_BAND_ATTR_FREQS);
1341 goto nla_put_failure;
1343 for (i = state->chan_start - 1;
1344 i < sband->n_channels;
1346 nl_freq = nla_nest_start(msg, i);
1348 goto nla_put_failure;
1350 chan = &sband->channels[i];
1352 if (nl80211_msg_put_channel(
1355 goto nla_put_failure;
1357 nla_nest_end(msg, nl_freq);
1361 if (i < sband->n_channels)
1362 state->chan_start = i + 2;
1364 state->chan_start = 0;
1365 nla_nest_end(msg, nl_freqs);
1368 nla_nest_end(msg, nl_band);
1371 /* start again here */
1372 if (state->chan_start)
1377 nla_nest_end(msg, nl_bands);
1379 if (band < IEEE80211_NUM_BANDS)
1380 state->band_start = band + 1;
1382 state->band_start = 0;
1384 /* if bands & channels are done, continue outside */
1385 if (state->band_start == 0 && state->chan_start == 0)
1386 state->split_start++;
1390 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1392 goto nla_put_failure;
1395 #define CMD(op, n) \
1397 if (dev->ops->op) { \
1399 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1400 goto nla_put_failure; \
1404 CMD(add_virtual_intf, NEW_INTERFACE);
1405 CMD(change_virtual_intf, SET_INTERFACE);
1406 CMD(add_key, NEW_KEY);
1407 CMD(start_ap, START_AP);
1408 CMD(add_station, NEW_STATION);
1409 CMD(add_mpath, NEW_MPATH);
1410 CMD(update_mesh_config, SET_MESH_CONFIG);
1411 CMD(change_bss, SET_BSS);
1412 CMD(auth, AUTHENTICATE);
1413 CMD(assoc, ASSOCIATE);
1414 CMD(deauth, DEAUTHENTICATE);
1415 CMD(disassoc, DISASSOCIATE);
1416 CMD(join_ibss, JOIN_IBSS);
1417 CMD(join_mesh, JOIN_MESH);
1418 CMD(set_pmksa, SET_PMKSA);
1419 CMD(del_pmksa, DEL_PMKSA);
1420 CMD(flush_pmksa, FLUSH_PMKSA);
1421 if (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1422 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1423 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1424 CMD(mgmt_tx, FRAME);
1425 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1426 if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1428 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1429 goto nla_put_failure;
1431 if (dev->ops->set_monitor_channel || dev->ops->start_ap ||
1432 dev->ops->join_mesh) {
1434 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1435 goto nla_put_failure;
1437 CMD(set_wds_peer, SET_WDS_PEER);
1438 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1439 CMD(tdls_mgmt, TDLS_MGMT);
1440 CMD(tdls_oper, TDLS_OPER);
1442 if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1443 CMD(sched_scan_start, START_SCHED_SCAN);
1444 CMD(probe_client, PROBE_CLIENT);
1445 CMD(set_noack_map, SET_NOACK_MAP);
1446 if (dev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1448 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1449 goto nla_put_failure;
1451 CMD(start_p2p_device, START_P2P_DEVICE);
1452 CMD(set_mcast_rate, SET_MCAST_RATE);
1454 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1455 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1456 if (dev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1457 CMD(channel_switch, CHANNEL_SWITCH);
1459 CMD(set_qos_map, SET_QOS_MAP);
1461 #ifdef CONFIG_NL80211_TESTMODE
1462 CMD(testmode_cmd, TESTMODE);
1467 if (dev->ops->connect || dev->ops->auth) {
1469 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1470 goto nla_put_failure;
1473 if (dev->ops->disconnect || dev->ops->deauth) {
1475 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1476 goto nla_put_failure;
1479 nla_nest_end(msg, nl_cmds);
1480 state->split_start++;
1484 if (dev->ops->remain_on_channel &&
1485 (dev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1487 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1488 dev->wiphy.max_remain_on_channel_duration))
1489 goto nla_put_failure;
1491 if ((dev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1492 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1493 goto nla_put_failure;
1495 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1496 goto nla_put_failure;
1497 state->split_start++;
1502 if (nl80211_send_wowlan(msg, dev, state->split))
1503 goto nla_put_failure;
1504 state->split_start++;
1508 state->split_start++;
1511 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1512 dev->wiphy.software_iftypes))
1513 goto nla_put_failure;
1515 if (nl80211_put_iface_combinations(&dev->wiphy, msg,
1517 goto nla_put_failure;
1519 state->split_start++;
1523 if ((dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1524 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1525 dev->wiphy.ap_sme_capa))
1526 goto nla_put_failure;
1528 features = dev->wiphy.features;
1530 * We can only add the per-channel limit information if the
1531 * dump is split, otherwise it makes it too big. Therefore
1532 * only advertise it in that case.
1535 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1536 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1537 goto nla_put_failure;
1539 if (dev->wiphy.ht_capa_mod_mask &&
1540 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1541 sizeof(*dev->wiphy.ht_capa_mod_mask),
1542 dev->wiphy.ht_capa_mod_mask))
1543 goto nla_put_failure;
1545 if (dev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1546 dev->wiphy.max_acl_mac_addrs &&
1547 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1548 dev->wiphy.max_acl_mac_addrs))
1549 goto nla_put_failure;
1552 * Any information below this point is only available to
1553 * applications that can deal with it being split. This
1554 * helps ensure that newly added capabilities don't break
1555 * older tools by overrunning their buffers.
1557 * We still increment split_start so that in the split
1558 * case we'll continue with more data in the next round,
1559 * but break unconditionally so unsplit data stops here.
1561 state->split_start++;
1564 if (dev->wiphy.extended_capabilities &&
1565 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1566 dev->wiphy.extended_capabilities_len,
1567 dev->wiphy.extended_capabilities) ||
1568 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1569 dev->wiphy.extended_capabilities_len,
1570 dev->wiphy.extended_capabilities_mask)))
1571 goto nla_put_failure;
1573 if (dev->wiphy.vht_capa_mod_mask &&
1574 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1575 sizeof(*dev->wiphy.vht_capa_mod_mask),
1576 dev->wiphy.vht_capa_mod_mask))
1577 goto nla_put_failure;
1579 state->split_start++;
1582 if (nl80211_send_coalesce(msg, dev))
1583 goto nla_put_failure;
1585 if ((dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1586 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1587 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1588 goto nla_put_failure;
1589 state->split_start++;
1592 if (dev->wiphy.n_vendor_commands) {
1593 const struct nl80211_vendor_cmd_info *info;
1594 struct nlattr *nested;
1596 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1598 goto nla_put_failure;
1600 for (i = 0; i < dev->wiphy.n_vendor_commands; i++) {
1601 info = &dev->wiphy.vendor_commands[i].info;
1602 if (nla_put(msg, i + 1, sizeof(*info), info))
1603 goto nla_put_failure;
1605 nla_nest_end(msg, nested);
1608 if (dev->wiphy.n_vendor_events) {
1609 const struct nl80211_vendor_cmd_info *info;
1610 struct nlattr *nested;
1612 nested = nla_nest_start(msg,
1613 NL80211_ATTR_VENDOR_EVENTS);
1615 goto nla_put_failure;
1617 for (i = 0; i < dev->wiphy.n_vendor_events; i++) {
1618 info = &dev->wiphy.vendor_events[i];
1619 if (nla_put(msg, i + 1, sizeof(*info), info))
1620 goto nla_put_failure;
1622 nla_nest_end(msg, nested);
1626 state->split_start = 0;
1629 return genlmsg_end(msg, hdr);
1632 genlmsg_cancel(msg, hdr);
1636 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1637 struct netlink_callback *cb,
1638 struct nl80211_dump_wiphy_state *state)
1640 struct nlattr **tb = nl80211_fam.attrbuf;
1641 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1642 tb, nl80211_fam.maxattr, nl80211_policy);
1643 /* ignore parse errors for backward compatibility */
1647 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1648 if (tb[NL80211_ATTR_WIPHY])
1649 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1650 if (tb[NL80211_ATTR_WDEV])
1651 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1652 if (tb[NL80211_ATTR_IFINDEX]) {
1653 struct net_device *netdev;
1654 struct cfg80211_registered_device *rdev;
1655 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1657 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1660 if (netdev->ieee80211_ptr) {
1661 rdev = wiphy_to_dev(
1662 netdev->ieee80211_ptr->wiphy);
1663 state->filter_wiphy = rdev->wiphy_idx;
1670 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1673 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1674 struct cfg80211_registered_device *dev;
1678 state = kzalloc(sizeof(*state), GFP_KERNEL);
1683 state->filter_wiphy = -1;
1684 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1690 cb->args[0] = (long)state;
1693 list_for_each_entry(dev, &cfg80211_rdev_list, list) {
1694 if (!net_eq(wiphy_net(&dev->wiphy), sock_net(skb->sk)))
1696 if (++idx <= state->start)
1698 if (state->filter_wiphy != -1 &&
1699 state->filter_wiphy != dev->wiphy_idx)
1701 /* attempt to fit multiple wiphy data chunks into the skb */
1703 ret = nl80211_send_wiphy(dev, skb,
1704 NETLINK_CB(cb->skb).portid,
1706 NLM_F_MULTI, state);
1709 * If sending the wiphy data didn't fit (ENOBUFS
1710 * or EMSGSIZE returned), this SKB is still
1711 * empty (so it's not too big because another
1712 * wiphy dataset is already in the skb) and
1713 * we've not tried to adjust the dump allocation
1714 * yet ... then adjust the alloc size to be
1715 * bigger, and return 1 but with the empty skb.
1716 * This results in an empty message being RX'ed
1717 * in userspace, but that is ignored.
1719 * We can then retry with the larger buffer.
1721 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1723 cb->min_dump_alloc < 4096) {
1724 cb->min_dump_alloc = 4096;
1731 } while (state->split_start > 0);
1741 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1743 kfree((void *)cb->args[0]);
1747 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1749 struct sk_buff *msg;
1750 struct cfg80211_registered_device *dev = info->user_ptr[0];
1751 struct nl80211_dump_wiphy_state state = {};
1753 msg = nlmsg_new(4096, GFP_KERNEL);
1757 if (nl80211_send_wiphy(dev, msg, info->snd_portid, info->snd_seq, 0,
1763 return genlmsg_reply(msg, info);
1766 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1767 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1768 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1769 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1770 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1771 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1774 static int parse_txq_params(struct nlattr *tb[],
1775 struct ieee80211_txq_params *txq_params)
1777 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1778 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1779 !tb[NL80211_TXQ_ATTR_AIFS])
1782 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1783 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1784 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1785 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1786 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1788 if (txq_params->ac >= NL80211_NUM_ACS)
1794 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1797 * You can only set the channel explicitly for WDS interfaces,
1798 * all others have their channel managed via their respective
1799 * "establish a connection" command (connect, join, ...)
1801 * For AP/GO and mesh mode, the channel can be set with the
1802 * channel userspace API, but is only stored and passed to the
1803 * low-level driver when the AP starts or the mesh is joined.
1804 * This is for backward compatibility, userspace can also give
1805 * the channel in the start-ap or join-mesh commands instead.
1807 * Monitors are special as they are normally slaved to
1808 * whatever else is going on, so they have their own special
1809 * operation to set the monitor channel if possible.
1812 wdev->iftype == NL80211_IFTYPE_AP ||
1813 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1814 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1815 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1818 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1819 struct genl_info *info,
1820 struct cfg80211_chan_def *chandef)
1824 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1827 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1829 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1830 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1831 chandef->center_freq1 = control_freq;
1832 chandef->center_freq2 = 0;
1834 /* Primary channel not allowed */
1835 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1838 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1839 enum nl80211_channel_type chantype;
1841 chantype = nla_get_u32(
1842 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1845 case NL80211_CHAN_NO_HT:
1846 case NL80211_CHAN_HT20:
1847 case NL80211_CHAN_HT40PLUS:
1848 case NL80211_CHAN_HT40MINUS:
1849 cfg80211_chandef_create(chandef, chandef->chan,
1855 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1857 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1858 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1859 chandef->center_freq1 =
1861 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1862 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1863 chandef->center_freq2 =
1865 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1868 if (!cfg80211_chandef_valid(chandef))
1871 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1872 IEEE80211_CHAN_DISABLED))
1875 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1876 chandef->width == NL80211_CHAN_WIDTH_10) &&
1877 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1883 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1884 struct wireless_dev *wdev,
1885 struct genl_info *info)
1887 struct cfg80211_chan_def chandef;
1889 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1892 iftype = wdev->iftype;
1894 if (!nl80211_can_set_dev_channel(wdev))
1897 result = nl80211_parse_chandef(rdev, info, &chandef);
1902 case NL80211_IFTYPE_AP:
1903 case NL80211_IFTYPE_P2P_GO:
1904 if (wdev->beacon_interval) {
1908 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef)) {
1912 wdev->preset_chandef = chandef;
1915 case NL80211_IFTYPE_MESH_POINT:
1916 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
1918 case NL80211_IFTYPE_MONITOR:
1919 result = cfg80211_set_monitor_channel(rdev, &chandef);
1928 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
1930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1931 struct net_device *netdev = info->user_ptr[1];
1933 return __nl80211_set_channel(rdev, netdev->ieee80211_ptr, info);
1936 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
1938 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1939 struct net_device *dev = info->user_ptr[1];
1940 struct wireless_dev *wdev = dev->ieee80211_ptr;
1943 if (!info->attrs[NL80211_ATTR_MAC])
1946 if (netif_running(dev))
1949 if (!rdev->ops->set_wds_peer)
1952 if (wdev->iftype != NL80211_IFTYPE_WDS)
1955 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
1956 return rdev_set_wds_peer(rdev, dev, bssid);
1960 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
1962 struct cfg80211_registered_device *rdev;
1963 struct net_device *netdev = NULL;
1964 struct wireless_dev *wdev;
1965 int result = 0, rem_txq_params = 0;
1966 struct nlattr *nl_txq_params;
1968 u8 retry_short = 0, retry_long = 0;
1969 u32 frag_threshold = 0, rts_threshold = 0;
1970 u8 coverage_class = 0;
1975 * Try to find the wiphy and netdev. Normally this
1976 * function shouldn't need the netdev, but this is
1977 * done for backward compatibility -- previously
1978 * setting the channel was done per wiphy, but now
1979 * it is per netdev. Previous userland like hostapd
1980 * also passed a netdev to set_wiphy, so that it is
1981 * possible to let that go to the right netdev!
1984 if (info->attrs[NL80211_ATTR_IFINDEX]) {
1985 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
1987 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
1988 if (netdev && netdev->ieee80211_ptr)
1989 rdev = wiphy_to_dev(netdev->ieee80211_ptr->wiphy);
1995 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
1998 return PTR_ERR(rdev);
2003 wdev = netdev->ieee80211_ptr;
2006 * end workaround code, by now the rdev is available
2007 * and locked, and wdev may or may not be NULL.
2010 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2011 result = cfg80211_dev_rename(
2012 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2017 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2018 struct ieee80211_txq_params txq_params;
2019 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2021 if (!rdev->ops->set_txq_params)
2027 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2028 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2031 if (!netif_running(netdev))
2034 nla_for_each_nested(nl_txq_params,
2035 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2037 nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2038 nla_data(nl_txq_params),
2039 nla_len(nl_txq_params),
2041 result = parse_txq_params(tb, &txq_params);
2045 result = rdev_set_txq_params(rdev, netdev,
2052 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2053 result = __nl80211_set_channel(rdev,
2054 nl80211_can_set_dev_channel(wdev) ? wdev : NULL,
2060 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2061 struct wireless_dev *txp_wdev = wdev;
2062 enum nl80211_tx_power_setting type;
2065 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2068 if (!rdev->ops->set_tx_power)
2071 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2072 type = nla_get_u32(info->attrs[idx]);
2074 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2075 (type != NL80211_TX_POWER_AUTOMATIC))
2078 if (type != NL80211_TX_POWER_AUTOMATIC) {
2079 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2080 mbm = nla_get_u32(info->attrs[idx]);
2083 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2088 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2089 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2091 if ((!rdev->wiphy.available_antennas_tx &&
2092 !rdev->wiphy.available_antennas_rx) ||
2093 !rdev->ops->set_antenna)
2096 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2097 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2099 /* reject antenna configurations which don't match the
2100 * available antenna masks, except for the "all" mask */
2101 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2102 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2105 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2106 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2108 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2115 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2116 retry_short = nla_get_u8(
2117 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2118 if (retry_short == 0)
2121 changed |= WIPHY_PARAM_RETRY_SHORT;
2124 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2125 retry_long = nla_get_u8(
2126 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2127 if (retry_long == 0)
2130 changed |= WIPHY_PARAM_RETRY_LONG;
2133 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2134 frag_threshold = nla_get_u32(
2135 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2136 if (frag_threshold < 256)
2139 if (frag_threshold != (u32) -1) {
2141 * Fragments (apart from the last one) are required to
2142 * have even length. Make the fragmentation code
2143 * simpler by stripping LSB should someone try to use
2144 * odd threshold value.
2146 frag_threshold &= ~0x1;
2148 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2151 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2152 rts_threshold = nla_get_u32(
2153 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2154 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2157 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2158 coverage_class = nla_get_u8(
2159 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2160 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2164 u8 old_retry_short, old_retry_long;
2165 u32 old_frag_threshold, old_rts_threshold;
2166 u8 old_coverage_class;
2168 if (!rdev->ops->set_wiphy_params)
2171 old_retry_short = rdev->wiphy.retry_short;
2172 old_retry_long = rdev->wiphy.retry_long;
2173 old_frag_threshold = rdev->wiphy.frag_threshold;
2174 old_rts_threshold = rdev->wiphy.rts_threshold;
2175 old_coverage_class = rdev->wiphy.coverage_class;
2177 if (changed & WIPHY_PARAM_RETRY_SHORT)
2178 rdev->wiphy.retry_short = retry_short;
2179 if (changed & WIPHY_PARAM_RETRY_LONG)
2180 rdev->wiphy.retry_long = retry_long;
2181 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2182 rdev->wiphy.frag_threshold = frag_threshold;
2183 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2184 rdev->wiphy.rts_threshold = rts_threshold;
2185 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2186 rdev->wiphy.coverage_class = coverage_class;
2188 result = rdev_set_wiphy_params(rdev, changed);
2190 rdev->wiphy.retry_short = old_retry_short;
2191 rdev->wiphy.retry_long = old_retry_long;
2192 rdev->wiphy.frag_threshold = old_frag_threshold;
2193 rdev->wiphy.rts_threshold = old_rts_threshold;
2194 rdev->wiphy.coverage_class = old_coverage_class;
2200 static inline u64 wdev_id(struct wireless_dev *wdev)
2202 return (u64)wdev->identifier |
2203 ((u64)wiphy_to_dev(wdev->wiphy)->wiphy_idx << 32);
2206 static int nl80211_send_chandef(struct sk_buff *msg,
2207 const struct cfg80211_chan_def *chandef)
2209 WARN_ON(!cfg80211_chandef_valid(chandef));
2211 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2212 chandef->chan->center_freq))
2214 switch (chandef->width) {
2215 case NL80211_CHAN_WIDTH_20_NOHT:
2216 case NL80211_CHAN_WIDTH_20:
2217 case NL80211_CHAN_WIDTH_40:
2218 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2219 cfg80211_get_chandef_type(chandef)))
2225 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2227 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2229 if (chandef->center_freq2 &&
2230 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2235 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2236 struct cfg80211_registered_device *rdev,
2237 struct wireless_dev *wdev)
2239 struct net_device *dev = wdev->netdev;
2242 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2247 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2248 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2249 goto nla_put_failure;
2251 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2252 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2253 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2254 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2255 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2256 rdev->devlist_generation ^
2257 (cfg80211_rdev_list_generation << 2)))
2258 goto nla_put_failure;
2260 if (rdev->ops->get_channel) {
2262 struct cfg80211_chan_def chandef;
2264 ret = rdev_get_channel(rdev, wdev, &chandef);
2266 if (nl80211_send_chandef(msg, &chandef))
2267 goto nla_put_failure;
2271 if (wdev->ssid_len) {
2272 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2273 goto nla_put_failure;
2276 return genlmsg_end(msg, hdr);
2279 genlmsg_cancel(msg, hdr);
2283 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2287 int wp_start = cb->args[0];
2288 int if_start = cb->args[1];
2289 struct cfg80211_registered_device *rdev;
2290 struct wireless_dev *wdev;
2293 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2294 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2296 if (wp_idx < wp_start) {
2302 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2303 if (if_idx < if_start) {
2307 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2308 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2320 cb->args[0] = wp_idx;
2321 cb->args[1] = if_idx;
2326 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2328 struct sk_buff *msg;
2329 struct cfg80211_registered_device *dev = info->user_ptr[0];
2330 struct wireless_dev *wdev = info->user_ptr[1];
2332 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2336 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2342 return genlmsg_reply(msg, info);
2345 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2346 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2347 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2348 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2349 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2350 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2351 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2354 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2356 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2364 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2365 nla, mntr_flags_policy))
2368 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2370 *mntrflags |= (1<<flag);
2375 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2376 struct net_device *netdev, u8 use_4addr,
2377 enum nl80211_iftype iftype)
2380 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2386 case NL80211_IFTYPE_AP_VLAN:
2387 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2390 case NL80211_IFTYPE_STATION:
2391 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2401 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2404 struct vif_params params;
2406 enum nl80211_iftype otype, ntype;
2407 struct net_device *dev = info->user_ptr[1];
2408 u32 _flags, *flags = NULL;
2409 bool change = false;
2411 memset(¶ms, 0, sizeof(params));
2413 otype = ntype = dev->ieee80211_ptr->iftype;
2415 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2416 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2419 if (ntype > NL80211_IFTYPE_MAX)
2423 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2424 struct wireless_dev *wdev = dev->ieee80211_ptr;
2426 if (ntype != NL80211_IFTYPE_MESH_POINT)
2428 if (netif_running(dev))
2432 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2433 IEEE80211_MAX_MESH_ID_LEN);
2434 wdev->mesh_id_up_len =
2435 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2436 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2437 wdev->mesh_id_up_len);
2441 if (info->attrs[NL80211_ATTR_4ADDR]) {
2442 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2444 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2448 params.use_4addr = -1;
2451 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2452 if (ntype != NL80211_IFTYPE_MONITOR)
2454 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2463 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2464 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2468 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2472 if (!err && params.use_4addr != -1)
2473 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2478 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2481 struct vif_params params;
2482 struct wireless_dev *wdev;
2483 struct sk_buff *msg;
2485 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2488 memset(¶ms, 0, sizeof(params));
2490 if (!info->attrs[NL80211_ATTR_IFNAME])
2493 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2494 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2495 if (type > NL80211_IFTYPE_MAX)
2499 if (!rdev->ops->add_virtual_intf ||
2500 !(rdev->wiphy.interface_modes & (1 << type)))
2503 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2504 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2506 if (!is_valid_ether_addr(params.macaddr))
2507 return -EADDRNOTAVAIL;
2510 if (info->attrs[NL80211_ATTR_4ADDR]) {
2511 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2512 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2517 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2521 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2522 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2525 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2526 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2529 wdev = rdev_add_virtual_intf(rdev,
2530 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2531 type, err ? NULL : &flags, ¶ms);
2534 return PTR_ERR(wdev);
2538 case NL80211_IFTYPE_MESH_POINT:
2539 if (!info->attrs[NL80211_ATTR_MESH_ID])
2542 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2543 IEEE80211_MAX_MESH_ID_LEN);
2544 wdev->mesh_id_up_len =
2545 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2546 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2547 wdev->mesh_id_up_len);
2550 case NL80211_IFTYPE_P2P_DEVICE:
2552 * P2P Device doesn't have a netdev, so doesn't go
2553 * through the netdev notifier and must be added here
2555 mutex_init(&wdev->mtx);
2556 INIT_LIST_HEAD(&wdev->event_list);
2557 spin_lock_init(&wdev->event_lock);
2558 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2559 spin_lock_init(&wdev->mgmt_registrations_lock);
2561 wdev->identifier = ++rdev->wdev_id;
2562 list_add_rcu(&wdev->list, &rdev->wdev_list);
2563 rdev->devlist_generation++;
2569 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2575 return genlmsg_reply(msg, info);
2578 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2580 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2581 struct wireless_dev *wdev = info->user_ptr[1];
2583 if (!rdev->ops->del_virtual_intf)
2587 * If we remove a wireless device without a netdev then clear
2588 * user_ptr[1] so that nl80211_post_doit won't dereference it
2589 * to check if it needs to do dev_put(). Otherwise it crashes
2590 * since the wdev has been freed, unlike with a netdev where
2591 * we need the dev_put() for the netdev to really be freed.
2594 info->user_ptr[1] = NULL;
2596 return rdev_del_virtual_intf(rdev, wdev);
2599 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2601 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2602 struct net_device *dev = info->user_ptr[1];
2605 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2608 if (!rdev->ops->set_noack_map)
2611 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2613 return rdev_set_noack_map(rdev, dev, noack_map);
2616 struct get_key_cookie {
2617 struct sk_buff *msg;
2622 static void get_key_callback(void *c, struct key_params *params)
2625 struct get_key_cookie *cookie = c;
2628 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2629 params->key_len, params->key)) ||
2631 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2632 params->seq_len, params->seq)) ||
2634 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2636 goto nla_put_failure;
2638 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2640 goto nla_put_failure;
2643 nla_put(cookie->msg, NL80211_KEY_DATA,
2644 params->key_len, params->key)) ||
2646 nla_put(cookie->msg, NL80211_KEY_SEQ,
2647 params->seq_len, params->seq)) ||
2649 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2651 goto nla_put_failure;
2653 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2654 goto nla_put_failure;
2656 nla_nest_end(cookie->msg, key);
2663 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2665 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2667 struct net_device *dev = info->user_ptr[1];
2669 const u8 *mac_addr = NULL;
2671 struct get_key_cookie cookie = {
2675 struct sk_buff *msg;
2677 if (info->attrs[NL80211_ATTR_KEY_IDX])
2678 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2683 if (info->attrs[NL80211_ATTR_MAC])
2684 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2686 pairwise = !!mac_addr;
2687 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2688 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2689 if (kt >= NUM_NL80211_KEYTYPES)
2691 if (kt != NL80211_KEYTYPE_GROUP &&
2692 kt != NL80211_KEYTYPE_PAIRWISE)
2694 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2697 if (!rdev->ops->get_key)
2700 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2704 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2705 NL80211_CMD_NEW_KEY);
2707 goto nla_put_failure;
2710 cookie.idx = key_idx;
2712 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2713 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2714 goto nla_put_failure;
2716 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2717 goto nla_put_failure;
2719 if (pairwise && mac_addr &&
2720 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2723 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2730 goto nla_put_failure;
2732 genlmsg_end(msg, hdr);
2733 return genlmsg_reply(msg, info);
2742 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2745 struct key_parse key;
2747 struct net_device *dev = info->user_ptr[1];
2749 err = nl80211_parse_key(info, &key);
2756 /* only support setting default key */
2757 if (!key.def && !key.defmgmt)
2760 wdev_lock(dev->ieee80211_ptr);
2763 if (!rdev->ops->set_default_key) {
2768 err = nl80211_key_allowed(dev->ieee80211_ptr);
2772 err = rdev_set_default_key(rdev, dev, key.idx,
2773 key.def_uni, key.def_multi);
2778 #ifdef CONFIG_CFG80211_WEXT
2779 dev->ieee80211_ptr->wext.default_key = key.idx;
2782 if (key.def_uni || !key.def_multi) {
2787 if (!rdev->ops->set_default_mgmt_key) {
2792 err = nl80211_key_allowed(dev->ieee80211_ptr);
2796 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2800 #ifdef CONFIG_CFG80211_WEXT
2801 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2806 wdev_unlock(dev->ieee80211_ptr);
2811 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2815 struct net_device *dev = info->user_ptr[1];
2816 struct key_parse key;
2817 const u8 *mac_addr = NULL;
2819 err = nl80211_parse_key(info, &key);
2826 if (info->attrs[NL80211_ATTR_MAC])
2827 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2829 if (key.type == -1) {
2831 key.type = NL80211_KEYTYPE_PAIRWISE;
2833 key.type = NL80211_KEYTYPE_GROUP;
2837 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2838 key.type != NL80211_KEYTYPE_GROUP)
2841 if (!rdev->ops->add_key)
2844 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2845 key.type == NL80211_KEYTYPE_PAIRWISE,
2849 wdev_lock(dev->ieee80211_ptr);
2850 err = nl80211_key_allowed(dev->ieee80211_ptr);
2852 err = rdev_add_key(rdev, dev, key.idx,
2853 key.type == NL80211_KEYTYPE_PAIRWISE,
2855 wdev_unlock(dev->ieee80211_ptr);
2860 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2864 struct net_device *dev = info->user_ptr[1];
2865 u8 *mac_addr = NULL;
2866 struct key_parse key;
2868 err = nl80211_parse_key(info, &key);
2872 if (info->attrs[NL80211_ATTR_MAC])
2873 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2875 if (key.type == -1) {
2877 key.type = NL80211_KEYTYPE_PAIRWISE;
2879 key.type = NL80211_KEYTYPE_GROUP;
2883 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2884 key.type != NL80211_KEYTYPE_GROUP)
2887 if (!rdev->ops->del_key)
2890 wdev_lock(dev->ieee80211_ptr);
2891 err = nl80211_key_allowed(dev->ieee80211_ptr);
2893 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
2894 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2898 err = rdev_del_key(rdev, dev, key.idx,
2899 key.type == NL80211_KEYTYPE_PAIRWISE,
2902 #ifdef CONFIG_CFG80211_WEXT
2904 if (key.idx == dev->ieee80211_ptr->wext.default_key)
2905 dev->ieee80211_ptr->wext.default_key = -1;
2906 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
2907 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
2910 wdev_unlock(dev->ieee80211_ptr);
2915 /* This function returns an error or the number of nested attributes */
2916 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
2918 struct nlattr *attr;
2919 int n_entries = 0, tmp;
2921 nla_for_each_nested(attr, nl_attr, tmp) {
2922 if (nla_len(attr) != ETH_ALEN)
2932 * This function parses ACL information and allocates memory for ACL data.
2933 * On successful return, the calling function is responsible to free the
2934 * ACL buffer returned by this function.
2936 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
2937 struct genl_info *info)
2939 enum nl80211_acl_policy acl_policy;
2940 struct nlattr *attr;
2941 struct cfg80211_acl_data *acl;
2942 int i = 0, n_entries, tmp;
2944 if (!wiphy->max_acl_mac_addrs)
2945 return ERR_PTR(-EOPNOTSUPP);
2947 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
2948 return ERR_PTR(-EINVAL);
2950 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
2951 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
2952 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
2953 return ERR_PTR(-EINVAL);
2955 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
2956 return ERR_PTR(-EINVAL);
2958 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
2960 return ERR_PTR(n_entries);
2962 if (n_entries > wiphy->max_acl_mac_addrs)
2963 return ERR_PTR(-ENOTSUPP);
2965 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
2968 return ERR_PTR(-ENOMEM);
2970 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
2971 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
2975 acl->n_acl_entries = n_entries;
2976 acl->acl_policy = acl_policy;
2981 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
2983 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2984 struct net_device *dev = info->user_ptr[1];
2985 struct cfg80211_acl_data *acl;
2988 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2989 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2992 if (!dev->ieee80211_ptr->beacon_interval)
2995 acl = parse_acl_data(&rdev->wiphy, info);
2997 return PTR_ERR(acl);
2999 err = rdev_set_mac_acl(rdev, dev, acl);
3006 static int nl80211_parse_beacon(struct nlattr *attrs[],
3007 struct cfg80211_beacon_data *bcn)
3009 bool haveinfo = false;
3011 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3012 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3013 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3014 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3017 memset(bcn, 0, sizeof(*bcn));
3019 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3020 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3021 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3027 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3028 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3029 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3036 if (attrs[NL80211_ATTR_IE]) {
3037 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3038 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3041 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3042 bcn->proberesp_ies =
3043 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3044 bcn->proberesp_ies_len =
3045 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3048 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3049 bcn->assocresp_ies =
3050 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3051 bcn->assocresp_ies_len =
3052 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3055 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3056 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3057 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3063 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3064 struct cfg80211_ap_settings *params)
3066 struct wireless_dev *wdev;
3069 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3070 if (wdev->iftype != NL80211_IFTYPE_AP &&
3071 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3074 if (!wdev->preset_chandef.chan)
3077 params->chandef = wdev->preset_chandef;
3085 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3086 enum nl80211_auth_type auth_type,
3087 enum nl80211_commands cmd)
3089 if (auth_type > NL80211_AUTHTYPE_MAX)
3093 case NL80211_CMD_AUTHENTICATE:
3094 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3095 auth_type == NL80211_AUTHTYPE_SAE)
3098 case NL80211_CMD_CONNECT:
3099 case NL80211_CMD_START_AP:
3100 /* SAE not supported yet */
3101 if (auth_type == NL80211_AUTHTYPE_SAE)
3109 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3111 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3112 struct net_device *dev = info->user_ptr[1];
3113 struct wireless_dev *wdev = dev->ieee80211_ptr;
3114 struct cfg80211_ap_settings params;
3116 u8 radar_detect_width = 0;
3118 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3119 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3122 if (!rdev->ops->start_ap)
3125 if (wdev->beacon_interval)
3128 memset(¶ms, 0, sizeof(params));
3130 /* these are required for START_AP */
3131 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3132 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3133 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3136 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3140 params.beacon_interval =
3141 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3142 params.dtim_period =
3143 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3145 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3150 * In theory, some of these attributes should be required here
3151 * but since they were not used when the command was originally
3152 * added, keep them optional for old user space programs to let
3153 * them continue to work with drivers that do not need the
3154 * additional information -- drivers must check!
3156 if (info->attrs[NL80211_ATTR_SSID]) {
3157 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3159 nla_len(info->attrs[NL80211_ATTR_SSID]);
3160 if (params.ssid_len == 0 ||
3161 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3165 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3166 params.hidden_ssid = nla_get_u32(
3167 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3168 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3169 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3170 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3174 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3176 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3177 params.auth_type = nla_get_u32(
3178 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3179 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3180 NL80211_CMD_START_AP))
3183 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3185 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3186 NL80211_MAX_NR_CIPHER_SUITES);
3190 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3191 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3193 params.inactivity_timeout = nla_get_u16(
3194 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3197 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3198 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3200 params.p2p_ctwindow =
3201 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3202 if (params.p2p_ctwindow > 127)
3204 if (params.p2p_ctwindow != 0 &&
3205 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3209 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3212 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3214 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3217 params.p2p_opp_ps = tmp;
3218 if (params.p2p_opp_ps != 0 &&
3219 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3223 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3224 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3227 } else if (wdev->preset_chandef.chan) {
3228 params.chandef = wdev->preset_chandef;
3229 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3232 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
3235 err = cfg80211_chandef_dfs_required(wdev->wiphy, ¶ms.chandef);
3239 radar_detect_width = BIT(params.chandef.width);
3240 params.radar_required = true;
3243 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
3244 params.chandef.chan,
3246 radar_detect_width);
3250 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3251 params.acl = parse_acl_data(&rdev->wiphy, info);
3252 if (IS_ERR(params.acl))
3253 return PTR_ERR(params.acl);
3257 err = rdev_start_ap(rdev, dev, ¶ms);
3259 wdev->preset_chandef = params.chandef;
3260 wdev->beacon_interval = params.beacon_interval;
3261 wdev->channel = params.chandef.chan;
3262 wdev->ssid_len = params.ssid_len;
3263 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3272 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3274 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3275 struct net_device *dev = info->user_ptr[1];
3276 struct wireless_dev *wdev = dev->ieee80211_ptr;
3277 struct cfg80211_beacon_data params;
3280 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3281 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3284 if (!rdev->ops->change_beacon)
3287 if (!wdev->beacon_interval)
3290 err = nl80211_parse_beacon(info->attrs, ¶ms);
3295 err = rdev_change_beacon(rdev, dev, ¶ms);
3301 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3304 struct net_device *dev = info->user_ptr[1];
3306 return cfg80211_stop_ap(rdev, dev);
3309 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3310 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3311 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3312 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3313 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3314 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3315 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3318 static int parse_station_flags(struct genl_info *info,
3319 enum nl80211_iftype iftype,
3320 struct station_parameters *params)
3322 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3327 * Try parsing the new attribute first so userspace
3328 * can specify both for older kernels.
3330 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3332 struct nl80211_sta_flag_update *sta_flags;
3334 sta_flags = nla_data(nla);
3335 params->sta_flags_mask = sta_flags->mask;
3336 params->sta_flags_set = sta_flags->set;
3337 params->sta_flags_set &= params->sta_flags_mask;
3338 if ((params->sta_flags_mask |
3339 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3344 /* if present, parse the old attribute */
3346 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3350 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3351 nla, sta_flags_policy))
3355 * Only allow certain flags for interface types so that
3356 * other attributes are silently ignored. Remember that
3357 * this is backward compatibility code with old userspace
3358 * and shouldn't be hit in other cases anyway.
3361 case NL80211_IFTYPE_AP:
3362 case NL80211_IFTYPE_AP_VLAN:
3363 case NL80211_IFTYPE_P2P_GO:
3364 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3365 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3366 BIT(NL80211_STA_FLAG_WME) |
3367 BIT(NL80211_STA_FLAG_MFP);
3369 case NL80211_IFTYPE_P2P_CLIENT:
3370 case NL80211_IFTYPE_STATION:
3371 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3372 BIT(NL80211_STA_FLAG_TDLS_PEER);
3374 case NL80211_IFTYPE_MESH_POINT:
3375 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3376 BIT(NL80211_STA_FLAG_MFP) |
3377 BIT(NL80211_STA_FLAG_AUTHORIZED);
3382 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3384 params->sta_flags_set |= (1<<flag);
3386 /* no longer support new API additions in old API */
3387 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3395 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3398 struct nlattr *rate;
3402 rate = nla_nest_start(msg, attr);
3406 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3407 bitrate = cfg80211_calculate_bitrate(info);
3408 /* report 16-bit bitrate only if we can */
3409 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3411 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3413 if (bitrate_compat > 0 &&
3414 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3417 if (info->flags & RATE_INFO_FLAGS_MCS) {
3418 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3420 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3421 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3423 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3424 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3426 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3427 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3429 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3431 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3432 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3434 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3435 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3437 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3438 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3440 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3441 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3443 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3444 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3448 nla_nest_end(msg, rate);
3452 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3461 attr = nla_nest_start(msg, id);
3465 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3466 if (!(mask & BIT(i)))
3469 if (nla_put_u8(msg, i, signal[i]))
3473 nla_nest_end(msg, attr);
3478 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3480 struct cfg80211_registered_device *rdev,
3481 struct net_device *dev,
3482 const u8 *mac_addr, struct station_info *sinfo)
3485 struct nlattr *sinfoattr, *bss_param;
3487 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3491 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3492 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3493 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3494 goto nla_put_failure;
3496 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3498 goto nla_put_failure;
3499 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3500 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3501 sinfo->connected_time))
3502 goto nla_put_failure;
3503 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3504 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3505 sinfo->inactive_time))
3506 goto nla_put_failure;
3507 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3508 STATION_INFO_RX_BYTES64)) &&
3509 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3510 (u32)sinfo->rx_bytes))
3511 goto nla_put_failure;
3512 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3513 STATION_INFO_TX_BYTES64)) &&
3514 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3515 (u32)sinfo->tx_bytes))
3516 goto nla_put_failure;
3517 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3518 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3520 goto nla_put_failure;
3521 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3522 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3524 goto nla_put_failure;
3525 if ((sinfo->filled & STATION_INFO_LLID) &&
3526 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3527 goto nla_put_failure;
3528 if ((sinfo->filled & STATION_INFO_PLID) &&
3529 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3530 goto nla_put_failure;
3531 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3532 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3533 sinfo->plink_state))
3534 goto nla_put_failure;
3535 switch (rdev->wiphy.signal_type) {
3536 case CFG80211_SIGNAL_TYPE_MBM:
3537 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3538 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3540 goto nla_put_failure;
3541 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3542 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3544 goto nla_put_failure;
3549 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3550 if (!nl80211_put_signal(msg, sinfo->chains,
3551 sinfo->chain_signal,
3552 NL80211_STA_INFO_CHAIN_SIGNAL))
3553 goto nla_put_failure;
3555 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3556 if (!nl80211_put_signal(msg, sinfo->chains,
3557 sinfo->chain_signal_avg,
3558 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3559 goto nla_put_failure;
3561 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3562 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3563 NL80211_STA_INFO_TX_BITRATE))
3564 goto nla_put_failure;
3566 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3567 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3568 NL80211_STA_INFO_RX_BITRATE))
3569 goto nla_put_failure;
3571 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3572 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3574 goto nla_put_failure;
3575 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3576 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3578 goto nla_put_failure;
3579 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3580 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3582 goto nla_put_failure;
3583 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3584 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3586 goto nla_put_failure;
3587 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3588 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3589 sinfo->beacon_loss_count))
3590 goto nla_put_failure;
3591 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3592 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3594 goto nla_put_failure;
3595 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3596 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3598 goto nla_put_failure;
3599 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3600 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3602 goto nla_put_failure;
3603 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3604 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3606 goto nla_put_failure;
3608 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3609 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3610 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3611 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3612 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3613 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3614 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3615 sinfo->bss_param.dtim_period) ||
3616 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3617 sinfo->bss_param.beacon_interval))
3618 goto nla_put_failure;
3620 nla_nest_end(msg, bss_param);
3622 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3623 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3624 sizeof(struct nl80211_sta_flag_update),
3626 goto nla_put_failure;
3627 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3628 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3630 goto nla_put_failure;
3631 nla_nest_end(msg, sinfoattr);
3633 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3634 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3635 sinfo->assoc_req_ies))
3636 goto nla_put_failure;
3638 return genlmsg_end(msg, hdr);
3641 genlmsg_cancel(msg, hdr);
3645 static int nl80211_dump_station(struct sk_buff *skb,
3646 struct netlink_callback *cb)
3648 struct station_info sinfo;
3649 struct cfg80211_registered_device *dev;
3650 struct wireless_dev *wdev;
3651 u8 mac_addr[ETH_ALEN];
3652 int sta_idx = cb->args[2];
3655 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
3659 if (!wdev->netdev) {
3664 if (!dev->ops->dump_station) {
3670 memset(&sinfo, 0, sizeof(sinfo));
3671 err = rdev_dump_station(dev, wdev->netdev, sta_idx,
3678 if (nl80211_send_station(skb,
3679 NETLINK_CB(cb->skb).portid,
3680 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3681 dev, wdev->netdev, mac_addr,
3690 cb->args[2] = sta_idx;
3693 nl80211_finish_wdev_dump(dev);
3698 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3701 struct net_device *dev = info->user_ptr[1];
3702 struct station_info sinfo;
3703 struct sk_buff *msg;
3704 u8 *mac_addr = NULL;
3707 memset(&sinfo, 0, sizeof(sinfo));
3709 if (!info->attrs[NL80211_ATTR_MAC])
3712 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3714 if (!rdev->ops->get_station)
3717 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3721 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3725 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3726 rdev, dev, mac_addr, &sinfo) < 0) {
3731 return genlmsg_reply(msg, info);
3734 int cfg80211_check_station_change(struct wiphy *wiphy,
3735 struct station_parameters *params,
3736 enum cfg80211_station_type statype)
3738 if (params->listen_interval != -1)
3743 /* When you run into this, adjust the code below for the new flag */
3744 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3747 case CFG80211_STA_MESH_PEER_KERNEL:
3748 case CFG80211_STA_MESH_PEER_USER:
3750 * No ignoring the TDLS flag here -- the userspace mesh
3751 * code doesn't have the bug of including TDLS in the
3754 if (params->sta_flags_mask &
3755 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3756 BIT(NL80211_STA_FLAG_MFP) |
3757 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3760 case CFG80211_STA_TDLS_PEER_SETUP:
3761 case CFG80211_STA_TDLS_PEER_ACTIVE:
3762 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3764 /* ignore since it can't change */
3765 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3768 /* disallow mesh-specific things */
3769 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3771 if (params->local_pm)
3773 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3777 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3778 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3779 /* TDLS can't be set, ... */
3780 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3783 * ... but don't bother the driver with it. This works around
3784 * a hostapd/wpa_supplicant issue -- it always includes the
3785 * TLDS_PEER flag in the mask even for AP mode.
3787 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3790 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3791 /* reject other things that can't change */
3792 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3794 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3796 if (params->supported_rates)
3798 if (params->ext_capab || params->ht_capa || params->vht_capa)
3802 if (statype != CFG80211_STA_AP_CLIENT) {
3808 case CFG80211_STA_AP_MLME_CLIENT:
3809 /* Use this only for authorizing/unauthorizing a station */
3810 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3813 case CFG80211_STA_AP_CLIENT:
3814 /* accept only the listed bits */
3815 if (params->sta_flags_mask &
3816 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3817 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3818 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3819 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3820 BIT(NL80211_STA_FLAG_WME) |
3821 BIT(NL80211_STA_FLAG_MFP)))
3824 /* but authenticated/associated only if driver handles it */
3825 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3826 params->sta_flags_mask &
3827 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3828 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3831 case CFG80211_STA_IBSS:
3832 case CFG80211_STA_AP_STA:
3833 /* reject any changes other than AUTHORIZED */
3834 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3837 case CFG80211_STA_TDLS_PEER_SETUP:
3838 /* reject any changes other than AUTHORIZED or WME */
3839 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3840 BIT(NL80211_STA_FLAG_WME)))
3842 /* force (at least) rates when authorizing */
3843 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3844 !params->supported_rates)
3847 case CFG80211_STA_TDLS_PEER_ACTIVE:
3848 /* reject any changes */
3850 case CFG80211_STA_MESH_PEER_KERNEL:
3851 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3854 case CFG80211_STA_MESH_PEER_USER:
3855 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3862 EXPORT_SYMBOL(cfg80211_check_station_change);
3865 * Get vlan interface making sure it is running and on the right wiphy.
3867 static struct net_device *get_vlan(struct genl_info *info,
3868 struct cfg80211_registered_device *rdev)
3870 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3871 struct net_device *v;
3877 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
3879 return ERR_PTR(-ENODEV);
3881 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
3886 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
3887 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3888 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
3893 if (!netif_running(v)) {
3901 return ERR_PTR(ret);
3904 static struct nla_policy
3905 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] __read_mostly = {
3906 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
3907 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
3910 static int nl80211_parse_sta_wme(struct genl_info *info,
3911 struct station_parameters *params)
3913 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
3917 /* parse WME attributes if present */
3918 if (!info->attrs[NL80211_ATTR_STA_WME])
3921 nla = info->attrs[NL80211_ATTR_STA_WME];
3922 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
3923 nl80211_sta_wme_policy);
3927 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
3928 params->uapsd_queues = nla_get_u8(
3929 tb[NL80211_STA_WME_UAPSD_QUEUES]);
3930 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
3933 if (tb[NL80211_STA_WME_MAX_SP])
3934 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
3936 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
3939 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
3944 static int nl80211_parse_sta_channel_info(struct genl_info *info,
3945 struct station_parameters *params)
3947 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
3948 params->supported_channels =
3949 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3950 params->supported_channels_len =
3951 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
3953 * Need to include at least one (first channel, number of
3954 * channels) tuple for each subband, and must have proper
3955 * tuples for the rest of the data as well.
3957 if (params->supported_channels_len < 2)
3959 if (params->supported_channels_len % 2)
3963 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
3964 params->supported_oper_classes =
3965 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3966 params->supported_oper_classes_len =
3967 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
3969 * The value of the Length field of the Supported Operating
3970 * Classes element is between 2 and 253.
3972 if (params->supported_oper_classes_len < 2 ||
3973 params->supported_oper_classes_len > 253)
3979 static int nl80211_set_station_tdls(struct genl_info *info,
3980 struct station_parameters *params)
3983 /* Dummy STA entry gets updated once the peer capabilities are known */
3984 if (info->attrs[NL80211_ATTR_PEER_AID])
3985 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
3986 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
3988 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
3989 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
3991 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
3993 err = nl80211_parse_sta_channel_info(info, params);
3997 return nl80211_parse_sta_wme(info, params);
4000 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4002 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4003 struct net_device *dev = info->user_ptr[1];
4004 struct station_parameters params;
4008 memset(¶ms, 0, sizeof(params));
4010 params.listen_interval = -1;
4012 if (!rdev->ops->change_station)
4015 if (info->attrs[NL80211_ATTR_STA_AID])
4018 if (!info->attrs[NL80211_ATTR_MAC])
4021 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4023 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4024 params.supported_rates =
4025 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4026 params.supported_rates_len =
4027 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4030 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4032 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4033 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4036 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4038 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4039 params.ext_capab_len =
4040 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4043 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4046 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4049 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4050 params.plink_action =
4051 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4052 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4056 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4057 params.plink_state =
4058 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4059 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4061 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4064 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4065 enum nl80211_mesh_power_mode pm = nla_get_u32(
4066 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4068 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4069 pm > NL80211_MESH_POWER_MAX)
4072 params.local_pm = pm;
4075 /* Include parameters for TDLS peer (will check later) */
4076 err = nl80211_set_station_tdls(info, ¶ms);
4080 params.vlan = get_vlan(info, rdev);
4081 if (IS_ERR(params.vlan))
4082 return PTR_ERR(params.vlan);
4084 switch (dev->ieee80211_ptr->iftype) {
4085 case NL80211_IFTYPE_AP:
4086 case NL80211_IFTYPE_AP_VLAN:
4087 case NL80211_IFTYPE_P2P_GO:
4088 case NL80211_IFTYPE_P2P_CLIENT:
4089 case NL80211_IFTYPE_STATION:
4090 case NL80211_IFTYPE_ADHOC:
4091 case NL80211_IFTYPE_MESH_POINT:
4098 /* driver will call cfg80211_check_station_change() */
4099 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4103 dev_put(params.vlan);
4108 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4112 struct net_device *dev = info->user_ptr[1];
4113 struct station_parameters params;
4114 u8 *mac_addr = NULL;
4116 memset(¶ms, 0, sizeof(params));
4118 if (!rdev->ops->add_station)
4121 if (!info->attrs[NL80211_ATTR_MAC])
4124 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4127 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4130 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4131 !info->attrs[NL80211_ATTR_PEER_AID])
4134 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4135 params.supported_rates =
4136 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4137 params.supported_rates_len =
4138 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4139 params.listen_interval =
4140 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4142 if (info->attrs[NL80211_ATTR_PEER_AID])
4143 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4145 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4146 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4149 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4151 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4152 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4155 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4157 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4158 params.ext_capab_len =
4159 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4162 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4164 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4166 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4168 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4170 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4171 params.opmode_notif_used = true;
4172 params.opmode_notif =
4173 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4176 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4177 params.plink_action =
4178 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4179 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4183 err = nl80211_parse_sta_channel_info(info, ¶ms);
4187 err = nl80211_parse_sta_wme(info, ¶ms);
4191 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4194 /* When you run into this, adjust the code below for the new flag */
4195 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4197 switch (dev->ieee80211_ptr->iftype) {
4198 case NL80211_IFTYPE_AP:
4199 case NL80211_IFTYPE_AP_VLAN:
4200 case NL80211_IFTYPE_P2P_GO:
4201 /* ignore WME attributes if iface/sta is not capable */
4202 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4203 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4204 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4206 /* TDLS peers cannot be added */
4207 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4208 info->attrs[NL80211_ATTR_PEER_AID])
4210 /* but don't bother the driver with it */
4211 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4213 /* allow authenticated/associated only if driver handles it */
4214 if (!(rdev->wiphy.features &
4215 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4216 params.sta_flags_mask &
4217 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4218 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4221 /* must be last in here for error handling */
4222 params.vlan = get_vlan(info, rdev);
4223 if (IS_ERR(params.vlan))
4224 return PTR_ERR(params.vlan);
4226 case NL80211_IFTYPE_MESH_POINT:
4227 /* ignore uAPSD data */
4228 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4230 /* associated is disallowed */
4231 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4233 /* TDLS peers cannot be added */
4234 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4235 info->attrs[NL80211_ATTR_PEER_AID])
4238 case NL80211_IFTYPE_STATION:
4239 case NL80211_IFTYPE_P2P_CLIENT:
4240 /* ignore uAPSD data */
4241 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4243 /* these are disallowed */
4244 if (params.sta_flags_mask &
4245 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4246 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4248 /* Only TDLS peers can be added */
4249 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4251 /* Can only add if TDLS ... */
4252 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4254 /* ... with external setup is supported */
4255 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4258 * Older wpa_supplicant versions always mark the TDLS peer
4259 * as authorized, but it shouldn't yet be.
4261 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4267 /* be aware of params.vlan when changing code here */
4269 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4272 dev_put(params.vlan);
4276 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4279 struct net_device *dev = info->user_ptr[1];
4280 u8 *mac_addr = NULL;
4282 if (info->attrs[NL80211_ATTR_MAC])
4283 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4285 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4286 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4287 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4288 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4291 if (!rdev->ops->del_station)
4294 return rdev_del_station(rdev, dev, mac_addr);
4297 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4298 int flags, struct net_device *dev,
4299 u8 *dst, u8 *next_hop,
4300 struct mpath_info *pinfo)
4303 struct nlattr *pinfoattr;
4305 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4309 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4310 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4311 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4312 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4313 goto nla_put_failure;
4315 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4317 goto nla_put_failure;
4318 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4319 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4321 goto nla_put_failure;
4322 if (((pinfo->filled & MPATH_INFO_SN) &&
4323 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4324 ((pinfo->filled & MPATH_INFO_METRIC) &&
4325 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4327 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4328 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4330 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4331 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4333 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4334 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4335 pinfo->discovery_timeout)) ||
4336 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4337 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4338 pinfo->discovery_retries)))
4339 goto nla_put_failure;
4341 nla_nest_end(msg, pinfoattr);
4343 return genlmsg_end(msg, hdr);
4346 genlmsg_cancel(msg, hdr);
4350 static int nl80211_dump_mpath(struct sk_buff *skb,
4351 struct netlink_callback *cb)
4353 struct mpath_info pinfo;
4354 struct cfg80211_registered_device *dev;
4355 struct wireless_dev *wdev;
4357 u8 next_hop[ETH_ALEN];
4358 int path_idx = cb->args[2];
4361 err = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
4365 if (!dev->ops->dump_mpath) {
4370 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4376 err = rdev_dump_mpath(dev, wdev->netdev, path_idx, dst,
4383 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4384 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4385 wdev->netdev, dst, next_hop,
4394 cb->args[2] = path_idx;
4397 nl80211_finish_wdev_dump(dev);
4401 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4403 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4405 struct net_device *dev = info->user_ptr[1];
4406 struct mpath_info pinfo;
4407 struct sk_buff *msg;
4409 u8 next_hop[ETH_ALEN];
4411 memset(&pinfo, 0, sizeof(pinfo));
4413 if (!info->attrs[NL80211_ATTR_MAC])
4416 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4418 if (!rdev->ops->get_mpath)
4421 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4424 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4432 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4433 dev, dst, next_hop, &pinfo) < 0) {
4438 return genlmsg_reply(msg, info);
4441 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4443 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4444 struct net_device *dev = info->user_ptr[1];
4446 u8 *next_hop = NULL;
4448 if (!info->attrs[NL80211_ATTR_MAC])
4451 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4454 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4455 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4457 if (!rdev->ops->change_mpath)
4460 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4463 return rdev_change_mpath(rdev, dev, dst, next_hop);
4466 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4469 struct net_device *dev = info->user_ptr[1];
4471 u8 *next_hop = NULL;
4473 if (!info->attrs[NL80211_ATTR_MAC])
4476 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4479 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4480 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4482 if (!rdev->ops->add_mpath)
4485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4488 return rdev_add_mpath(rdev, dev, dst, next_hop);
4491 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4493 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4494 struct net_device *dev = info->user_ptr[1];
4497 if (info->attrs[NL80211_ATTR_MAC])
4498 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4500 if (!rdev->ops->del_mpath)
4503 return rdev_del_mpath(rdev, dev, dst);
4506 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4509 struct net_device *dev = info->user_ptr[1];
4510 struct wireless_dev *wdev = dev->ieee80211_ptr;
4511 struct bss_parameters params;
4514 memset(¶ms, 0, sizeof(params));
4515 /* default to not changing parameters */
4516 params.use_cts_prot = -1;
4517 params.use_short_preamble = -1;
4518 params.use_short_slot_time = -1;
4519 params.ap_isolate = -1;
4520 params.ht_opmode = -1;
4521 params.p2p_ctwindow = -1;
4522 params.p2p_opp_ps = -1;
4524 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4525 params.use_cts_prot =
4526 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4527 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4528 params.use_short_preamble =
4529 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4530 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4531 params.use_short_slot_time =
4532 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4533 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4534 params.basic_rates =
4535 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4536 params.basic_rates_len =
4537 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4539 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4540 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4541 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4543 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4545 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4546 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4548 params.p2p_ctwindow =
4549 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4550 if (params.p2p_ctwindow < 0)
4552 if (params.p2p_ctwindow != 0 &&
4553 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4557 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4560 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4562 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4565 params.p2p_opp_ps = tmp;
4566 if (params.p2p_opp_ps &&
4567 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4571 if (!rdev->ops->change_bss)
4574 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4575 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4579 err = rdev_change_bss(rdev, dev, ¶ms);
4585 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4586 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4587 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4588 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4589 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4590 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4591 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4594 static int parse_reg_rule(struct nlattr *tb[],
4595 struct ieee80211_reg_rule *reg_rule)
4597 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4598 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4600 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4602 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4604 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4606 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4608 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4611 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4613 freq_range->start_freq_khz =
4614 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4615 freq_range->end_freq_khz =
4616 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4617 freq_range->max_bandwidth_khz =
4618 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4620 power_rule->max_eirp =
4621 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4623 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4624 power_rule->max_antenna_gain =
4625 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4630 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4634 enum nl80211_user_reg_hint_type user_reg_hint_type;
4637 * You should only get this when cfg80211 hasn't yet initialized
4638 * completely when built-in to the kernel right between the time
4639 * window between nl80211_init() and regulatory_init(), if that is
4642 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4643 return -EINPROGRESS;
4645 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4648 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4650 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4651 user_reg_hint_type =
4652 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4654 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4656 switch (user_reg_hint_type) {
4657 case NL80211_USER_REG_HINT_USER:
4658 case NL80211_USER_REG_HINT_CELL_BASE:
4664 r = regulatory_hint_user(data, user_reg_hint_type);
4669 static int nl80211_get_mesh_config(struct sk_buff *skb,
4670 struct genl_info *info)
4672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4673 struct net_device *dev = info->user_ptr[1];
4674 struct wireless_dev *wdev = dev->ieee80211_ptr;
4675 struct mesh_config cur_params;
4678 struct nlattr *pinfoattr;
4679 struct sk_buff *msg;
4681 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4684 if (!rdev->ops->get_mesh_config)
4688 /* If not connected, get default parameters */
4689 if (!wdev->mesh_id_len)
4690 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4692 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4698 /* Draw up a netlink message to send back */
4699 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4702 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4703 NL80211_CMD_GET_MESH_CONFIG);
4706 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4708 goto nla_put_failure;
4709 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4710 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4711 cur_params.dot11MeshRetryTimeout) ||
4712 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4713 cur_params.dot11MeshConfirmTimeout) ||
4714 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4715 cur_params.dot11MeshHoldingTimeout) ||
4716 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4717 cur_params.dot11MeshMaxPeerLinks) ||
4718 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4719 cur_params.dot11MeshMaxRetries) ||
4720 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4721 cur_params.dot11MeshTTL) ||
4722 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4723 cur_params.element_ttl) ||
4724 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4725 cur_params.auto_open_plinks) ||
4726 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4727 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4728 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4729 cur_params.dot11MeshHWMPmaxPREQretries) ||
4730 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4731 cur_params.path_refresh_time) ||
4732 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4733 cur_params.min_discovery_timeout) ||
4734 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4735 cur_params.dot11MeshHWMPactivePathTimeout) ||
4736 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4737 cur_params.dot11MeshHWMPpreqMinInterval) ||
4738 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4739 cur_params.dot11MeshHWMPperrMinInterval) ||
4740 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4741 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4742 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4743 cur_params.dot11MeshHWMPRootMode) ||
4744 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4745 cur_params.dot11MeshHWMPRannInterval) ||
4746 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4747 cur_params.dot11MeshGateAnnouncementProtocol) ||
4748 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4749 cur_params.dot11MeshForwarding) ||
4750 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4751 cur_params.rssi_threshold) ||
4752 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4753 cur_params.ht_opmode) ||
4754 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4755 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4756 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4757 cur_params.dot11MeshHWMProotInterval) ||
4758 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4759 cur_params.dot11MeshHWMPconfirmationInterval) ||
4760 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4761 cur_params.power_mode) ||
4762 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4763 cur_params.dot11MeshAwakeWindowDuration) ||
4764 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4765 cur_params.plink_timeout))
4766 goto nla_put_failure;
4767 nla_nest_end(msg, pinfoattr);
4768 genlmsg_end(msg, hdr);
4769 return genlmsg_reply(msg, info);
4772 genlmsg_cancel(msg, hdr);
4778 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4779 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4780 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4781 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4782 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4783 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4784 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4785 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4786 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4787 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4788 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4789 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4790 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4791 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4792 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4793 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4794 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4795 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4796 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4797 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4798 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4799 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4800 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4801 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4802 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4803 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4804 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4805 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4806 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4809 static const struct nla_policy
4810 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4811 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4812 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4813 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4814 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4815 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4816 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4817 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4818 .len = IEEE80211_MAX_DATA_LEN },
4819 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4822 static int nl80211_parse_mesh_config(struct genl_info *info,
4823 struct mesh_config *cfg,
4826 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4829 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4832 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4834 cfg->param = fn(tb[attr]); \
4835 mask |= (1 << (attr - 1)); \
4840 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4842 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4843 info->attrs[NL80211_ATTR_MESH_CONFIG],
4844 nl80211_meshconf_params_policy))
4847 /* This makes sure that there aren't more than 32 mesh config
4848 * parameters (otherwise our bitfield scheme would not work.) */
4849 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4851 /* Fill in the params struct */
4852 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4853 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4855 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4856 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4858 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4859 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4861 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4862 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4864 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4865 mask, NL80211_MESHCONF_MAX_RETRIES,
4867 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4868 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4869 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4870 mask, NL80211_MESHCONF_ELEMENT_TTL,
4872 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4873 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4875 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4877 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4879 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
4880 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4882 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
4883 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
4885 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
4886 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4888 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
4890 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4892 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
4894 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4896 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
4898 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4900 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4901 dot11MeshHWMPnetDiameterTraversalTime,
4903 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4905 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
4906 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
4908 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
4909 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4911 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4912 dot11MeshGateAnnouncementProtocol, 0, 1,
4913 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4915 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
4916 mask, NL80211_MESHCONF_FORWARDING,
4918 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
4919 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
4921 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
4922 mask, NL80211_MESHCONF_HT_OPMODE,
4924 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
4926 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4928 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
4929 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4931 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
4932 dot11MeshHWMPconfirmationInterval,
4934 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4936 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
4937 NL80211_MESH_POWER_ACTIVE,
4938 NL80211_MESH_POWER_MAX,
4939 mask, NL80211_MESHCONF_POWER_MODE,
4941 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
4943 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
4944 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
4945 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
4952 #undef FILL_IN_MESH_PARAM_IF_SET
4955 static int nl80211_parse_mesh_setup(struct genl_info *info,
4956 struct mesh_setup *setup)
4958 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4959 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
4961 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
4963 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
4964 info->attrs[NL80211_ATTR_MESH_SETUP],
4965 nl80211_mesh_setup_params_policy))
4968 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
4969 setup->sync_method =
4970 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
4971 IEEE80211_SYNC_METHOD_VENDOR :
4972 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
4974 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
4975 setup->path_sel_proto =
4976 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
4977 IEEE80211_PATH_PROTOCOL_VENDOR :
4978 IEEE80211_PATH_PROTOCOL_HWMP;
4980 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
4981 setup->path_metric =
4982 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
4983 IEEE80211_PATH_METRIC_VENDOR :
4984 IEEE80211_PATH_METRIC_AIRTIME;
4987 if (tb[NL80211_MESH_SETUP_IE]) {
4988 struct nlattr *ieattr =
4989 tb[NL80211_MESH_SETUP_IE];
4990 if (!is_valid_ie_attr(ieattr))
4992 setup->ie = nla_data(ieattr);
4993 setup->ie_len = nla_len(ieattr);
4995 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
4996 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
4998 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
4999 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5000 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5001 if (setup->is_secure)
5002 setup->user_mpm = true;
5004 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5005 if (!setup->user_mpm)
5008 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5014 static int nl80211_update_mesh_config(struct sk_buff *skb,
5015 struct genl_info *info)
5017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5018 struct net_device *dev = info->user_ptr[1];
5019 struct wireless_dev *wdev = dev->ieee80211_ptr;
5020 struct mesh_config cfg;
5024 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5027 if (!rdev->ops->update_mesh_config)
5030 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5035 if (!wdev->mesh_id_len)
5039 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5046 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5048 const struct ieee80211_regdomain *regdom;
5049 struct sk_buff *msg;
5051 struct nlattr *nl_reg_rules;
5054 if (!cfg80211_regdomain)
5057 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5061 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5062 NL80211_CMD_GET_REG);
5066 if (reg_last_request_cell_base() &&
5067 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5068 NL80211_USER_REG_HINT_CELL_BASE))
5069 goto nla_put_failure;
5072 regdom = rcu_dereference(cfg80211_regdomain);
5074 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5075 (regdom->dfs_region &&
5076 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5077 goto nla_put_failure_rcu;
5079 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5081 goto nla_put_failure_rcu;
5083 for (i = 0; i < regdom->n_reg_rules; i++) {
5084 struct nlattr *nl_reg_rule;
5085 const struct ieee80211_reg_rule *reg_rule;
5086 const struct ieee80211_freq_range *freq_range;
5087 const struct ieee80211_power_rule *power_rule;
5089 reg_rule = ®dom->reg_rules[i];
5090 freq_range = ®_rule->freq_range;
5091 power_rule = ®_rule->power_rule;
5093 nl_reg_rule = nla_nest_start(msg, i);
5095 goto nla_put_failure_rcu;
5097 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5099 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5100 freq_range->start_freq_khz) ||
5101 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5102 freq_range->end_freq_khz) ||
5103 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5104 freq_range->max_bandwidth_khz) ||
5105 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5106 power_rule->max_antenna_gain) ||
5107 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5108 power_rule->max_eirp))
5109 goto nla_put_failure_rcu;
5111 nla_nest_end(msg, nl_reg_rule);
5115 nla_nest_end(msg, nl_reg_rules);
5117 genlmsg_end(msg, hdr);
5118 return genlmsg_reply(msg, info);
5120 nla_put_failure_rcu:
5123 genlmsg_cancel(msg, hdr);
5129 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5131 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5132 struct nlattr *nl_reg_rule;
5133 char *alpha2 = NULL;
5134 int rem_reg_rules = 0, r = 0;
5135 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5136 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5137 struct ieee80211_regdomain *rd = NULL;
5139 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5142 if (!info->attrs[NL80211_ATTR_REG_RULES])
5145 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5147 if (info->attrs[NL80211_ATTR_DFS_REGION])
5148 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5150 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5153 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5157 if (!reg_is_valid_request(alpha2))
5160 size_of_regd = sizeof(struct ieee80211_regdomain) +
5161 num_rules * sizeof(struct ieee80211_reg_rule);
5163 rd = kzalloc(size_of_regd, GFP_KERNEL);
5167 rd->n_reg_rules = num_rules;
5168 rd->alpha2[0] = alpha2[0];
5169 rd->alpha2[1] = alpha2[1];
5172 * Disable DFS master mode if the DFS region was
5173 * not supported or known on this kernel.
5175 if (reg_supported_dfs_region(dfs_region))
5176 rd->dfs_region = dfs_region;
5178 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5180 nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5181 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5183 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5189 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5196 /* set_regdom took ownership */
5204 static int validate_scan_freqs(struct nlattr *freqs)
5206 struct nlattr *attr1, *attr2;
5207 int n_channels = 0, tmp1, tmp2;
5209 nla_for_each_nested(attr1, freqs, tmp1) {
5212 * Some hardware has a limited channel list for
5213 * scanning, and it is pretty much nonsensical
5214 * to scan for a channel twice, so disallow that
5215 * and don't require drivers to check that the
5216 * channel list they get isn't longer than what
5217 * they can scan, as long as they can scan all
5218 * the channels they registered at once.
5220 nla_for_each_nested(attr2, freqs, tmp2)
5221 if (attr1 != attr2 &&
5222 nla_get_u32(attr1) == nla_get_u32(attr2))
5229 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5232 struct wireless_dev *wdev = info->user_ptr[1];
5233 struct cfg80211_scan_request *request;
5234 struct nlattr *attr;
5235 struct wiphy *wiphy;
5236 int err, tmp, n_ssids = 0, n_channels, i;
5239 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5242 wiphy = &rdev->wiphy;
5244 if (!rdev->ops->scan)
5247 if (rdev->scan_req) {
5252 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5253 n_channels = validate_scan_freqs(
5254 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5260 n_channels = ieee80211_get_num_supported_channels(wiphy);
5263 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5264 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5267 if (n_ssids > wiphy->max_scan_ssids) {
5272 if (info->attrs[NL80211_ATTR_IE])
5273 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5277 if (ie_len > wiphy->max_scan_ie_len) {
5282 request = kzalloc(sizeof(*request)
5283 + sizeof(*request->ssids) * n_ssids
5284 + sizeof(*request->channels) * n_channels
5285 + ie_len, GFP_KERNEL);
5292 request->ssids = (void *)&request->channels[n_channels];
5293 request->n_ssids = n_ssids;
5296 request->ie = (void *)(request->ssids + n_ssids);
5298 request->ie = (void *)(request->channels + n_channels);
5302 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5303 /* user specified, bail out if channel not found */
5304 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5305 struct ieee80211_channel *chan;
5307 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5314 /* ignore disabled channels */
5315 if (chan->flags & IEEE80211_CHAN_DISABLED)
5318 request->channels[i] = chan;
5322 enum ieee80211_band band;
5325 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5327 if (!wiphy->bands[band])
5329 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5330 struct ieee80211_channel *chan;
5332 chan = &wiphy->bands[band]->channels[j];
5334 if (chan->flags & IEEE80211_CHAN_DISABLED)
5337 request->channels[i] = chan;
5348 request->n_channels = i;
5351 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5352 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5353 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5357 request->ssids[i].ssid_len = nla_len(attr);
5358 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5363 if (info->attrs[NL80211_ATTR_IE]) {
5364 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5365 memcpy((void *)request->ie,
5366 nla_data(info->attrs[NL80211_ATTR_IE]),
5370 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5371 if (wiphy->bands[i])
5373 (1 << wiphy->bands[i]->n_bitrates) - 1;
5375 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5376 nla_for_each_nested(attr,
5377 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5379 enum ieee80211_band band = nla_type(attr);
5381 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5386 if (!wiphy->bands[band])
5389 err = ieee80211_get_ratemask(wiphy->bands[band],
5392 &request->rates[band]);
5398 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5399 request->flags = nla_get_u32(
5400 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5401 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5402 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5409 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5411 request->wdev = wdev;
5412 request->wiphy = &rdev->wiphy;
5413 request->scan_start = jiffies;
5415 rdev->scan_req = request;
5416 err = rdev_scan(rdev, request);
5419 nl80211_send_scan_start(rdev, wdev);
5421 dev_hold(wdev->netdev);
5424 rdev->scan_req = NULL;
5432 static int nl80211_start_sched_scan(struct sk_buff *skb,
5433 struct genl_info *info)
5435 struct cfg80211_sched_scan_request *request;
5436 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5437 struct net_device *dev = info->user_ptr[1];
5438 struct nlattr *attr;
5439 struct wiphy *wiphy;
5440 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5442 enum ieee80211_band band;
5444 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5446 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5447 !rdev->ops->sched_scan_start)
5450 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5453 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5456 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5460 wiphy = &rdev->wiphy;
5462 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5463 n_channels = validate_scan_freqs(
5464 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5468 n_channels = ieee80211_get_num_supported_channels(wiphy);
5471 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5472 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5476 if (n_ssids > wiphy->max_sched_scan_ssids)
5479 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH])
5480 nla_for_each_nested(attr,
5481 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5485 if (n_match_sets > wiphy->max_match_sets)
5488 if (info->attrs[NL80211_ATTR_IE])
5489 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5493 if (ie_len > wiphy->max_sched_scan_ie_len)
5496 if (rdev->sched_scan_req) {
5501 request = kzalloc(sizeof(*request)
5502 + sizeof(*request->ssids) * n_ssids
5503 + sizeof(*request->match_sets) * n_match_sets
5504 + sizeof(*request->channels) * n_channels
5505 + ie_len, GFP_KERNEL);
5512 request->ssids = (void *)&request->channels[n_channels];
5513 request->n_ssids = n_ssids;
5516 request->ie = (void *)(request->ssids + n_ssids);
5518 request->ie = (void *)(request->channels + n_channels);
5523 request->match_sets = (void *)(request->ie + ie_len);
5524 else if (request->ssids)
5525 request->match_sets =
5526 (void *)(request->ssids + n_ssids);
5528 request->match_sets =
5529 (void *)(request->channels + n_channels);
5531 request->n_match_sets = n_match_sets;
5534 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5535 /* user specified, bail out if channel not found */
5536 nla_for_each_nested(attr,
5537 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5539 struct ieee80211_channel *chan;
5541 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5548 /* ignore disabled channels */
5549 if (chan->flags & IEEE80211_CHAN_DISABLED)
5552 request->channels[i] = chan;
5557 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5559 if (!wiphy->bands[band])
5561 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5562 struct ieee80211_channel *chan;
5564 chan = &wiphy->bands[band]->channels[j];
5566 if (chan->flags & IEEE80211_CHAN_DISABLED)
5569 request->channels[i] = chan;
5580 request->n_channels = i;
5583 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5584 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5586 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5590 request->ssids[i].ssid_len = nla_len(attr);
5591 memcpy(request->ssids[i].ssid, nla_data(attr),
5598 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5599 nla_for_each_nested(attr,
5600 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5602 struct nlattr *ssid, *rssi;
5604 nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5605 nla_data(attr), nla_len(attr),
5606 nl80211_match_policy);
5607 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5609 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5613 memcpy(request->match_sets[i].ssid.ssid,
5614 nla_data(ssid), nla_len(ssid));
5615 request->match_sets[i].ssid.ssid_len =
5618 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5620 request->rssi_thold = nla_get_u32(rssi);
5622 request->rssi_thold =
5623 NL80211_SCAN_RSSI_THOLD_OFF;
5628 if (info->attrs[NL80211_ATTR_IE]) {
5629 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5630 memcpy((void *)request->ie,
5631 nla_data(info->attrs[NL80211_ATTR_IE]),
5635 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5636 request->flags = nla_get_u32(
5637 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5638 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5639 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5646 request->wiphy = &rdev->wiphy;
5647 request->interval = interval;
5648 request->scan_start = jiffies;
5650 err = rdev_sched_scan_start(rdev, dev, request);
5652 rdev->sched_scan_req = request;
5653 nl80211_send_sched_scan(rdev, dev,
5654 NL80211_CMD_START_SCHED_SCAN);
5664 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5665 struct genl_info *info)
5667 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5669 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5670 !rdev->ops->sched_scan_stop)
5673 return __cfg80211_stop_sched_scan(rdev, false);
5676 static int nl80211_start_radar_detection(struct sk_buff *skb,
5677 struct genl_info *info)
5679 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5680 struct net_device *dev = info->user_ptr[1];
5681 struct wireless_dev *wdev = dev->ieee80211_ptr;
5682 struct cfg80211_chan_def chandef;
5683 enum nl80211_dfs_regions dfs_region;
5686 dfs_region = reg_get_dfs_region(wdev->wiphy);
5687 if (dfs_region == NL80211_DFS_UNSET)
5690 err = nl80211_parse_chandef(rdev, info, &chandef);
5694 if (netif_carrier_ok(dev))
5697 if (wdev->cac_started)
5700 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef);
5707 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5710 if (!rdev->ops->start_radar_detection)
5713 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5714 chandef.chan, CHAN_MODE_SHARED,
5715 BIT(chandef.width));
5719 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef);
5721 wdev->channel = chandef.chan;
5722 wdev->cac_started = true;
5723 wdev->cac_start_time = jiffies;
5728 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5730 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5731 struct net_device *dev = info->user_ptr[1];
5732 struct wireless_dev *wdev = dev->ieee80211_ptr;
5733 struct cfg80211_csa_settings params;
5734 /* csa_attrs is defined static to avoid waste of stack size - this
5735 * function is called under RTNL lock, so this should not be a problem.
5737 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5738 u8 radar_detect_width = 0;
5740 bool need_new_beacon = false;
5742 if (!rdev->ops->channel_switch ||
5743 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5746 switch (dev->ieee80211_ptr->iftype) {
5747 case NL80211_IFTYPE_AP:
5748 case NL80211_IFTYPE_P2P_GO:
5749 need_new_beacon = true;
5751 /* useless if AP is not running */
5752 if (!wdev->beacon_interval)
5755 case NL80211_IFTYPE_ADHOC:
5756 case NL80211_IFTYPE_MESH_POINT:
5762 memset(¶ms, 0, sizeof(params));
5764 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5765 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5768 /* only important for AP, IBSS and mesh create IEs internally */
5769 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5772 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5774 if (!need_new_beacon)
5777 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5781 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5782 info->attrs[NL80211_ATTR_CSA_IES],
5787 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5791 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5794 params.counter_offset_beacon =
5795 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5796 if (params.counter_offset_beacon >= params.beacon_csa.tail_len)
5799 /* sanity check - counters should be the same */
5800 if (params.beacon_csa.tail[params.counter_offset_beacon] !=
5804 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
5805 params.counter_offset_presp =
5806 nla_get_u16(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
5807 if (params.counter_offset_presp >=
5808 params.beacon_csa.probe_resp_len)
5811 if (params.beacon_csa.probe_resp[params.counter_offset_presp] !=
5817 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
5821 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef))
5824 if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
5825 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
5826 dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
5827 err = cfg80211_chandef_dfs_required(wdev->wiphy,
5832 radar_detect_width = BIT(params.chandef.width);
5833 params.radar_required = true;
5837 err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
5838 params.chandef.chan,
5840 radar_detect_width);
5844 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
5845 params.block_tx = true;
5848 err = rdev_channel_switch(rdev, dev, ¶ms);
5854 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
5856 struct cfg80211_registered_device *rdev,
5857 struct wireless_dev *wdev,
5858 struct cfg80211_internal_bss *intbss)
5860 struct cfg80211_bss *res = &intbss->pub;
5861 const struct cfg80211_bss_ies *ies;
5866 ASSERT_WDEV_LOCK(wdev);
5868 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5869 NL80211_CMD_NEW_SCAN_RESULTS);
5873 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5875 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
5876 goto nla_put_failure;
5878 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
5879 goto nla_put_failure;
5880 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
5881 goto nla_put_failure;
5883 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
5885 goto nla_put_failure;
5886 if ((!is_zero_ether_addr(res->bssid) &&
5887 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
5888 goto nla_put_failure;
5891 ies = rcu_dereference(res->ies);
5893 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5894 goto fail_unlock_rcu;
5896 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
5897 ies->len, ies->data))
5898 goto fail_unlock_rcu;
5900 ies = rcu_dereference(res->beacon_ies);
5902 if (!tsf && nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
5903 goto fail_unlock_rcu;
5904 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
5905 ies->len, ies->data))
5906 goto fail_unlock_rcu;
5910 if (res->beacon_interval &&
5911 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
5912 goto nla_put_failure;
5913 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
5914 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
5915 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
5916 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
5917 jiffies_to_msecs(jiffies - intbss->ts)))
5918 goto nla_put_failure;
5920 switch (rdev->wiphy.signal_type) {
5921 case CFG80211_SIGNAL_TYPE_MBM:
5922 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
5923 goto nla_put_failure;
5925 case CFG80211_SIGNAL_TYPE_UNSPEC:
5926 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
5927 goto nla_put_failure;
5933 switch (wdev->iftype) {
5934 case NL80211_IFTYPE_P2P_CLIENT:
5935 case NL80211_IFTYPE_STATION:
5936 if (intbss == wdev->current_bss &&
5937 nla_put_u32(msg, NL80211_BSS_STATUS,
5938 NL80211_BSS_STATUS_ASSOCIATED))
5939 goto nla_put_failure;
5941 case NL80211_IFTYPE_ADHOC:
5942 if (intbss == wdev->current_bss &&
5943 nla_put_u32(msg, NL80211_BSS_STATUS,
5944 NL80211_BSS_STATUS_IBSS_JOINED))
5945 goto nla_put_failure;
5951 nla_nest_end(msg, bss);
5953 return genlmsg_end(msg, hdr);
5958 genlmsg_cancel(msg, hdr);
5962 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
5964 struct cfg80211_registered_device *rdev;
5965 struct cfg80211_internal_bss *scan;
5966 struct wireless_dev *wdev;
5967 int start = cb->args[2], idx = 0;
5970 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
5975 spin_lock_bh(&rdev->bss_lock);
5976 cfg80211_bss_expire(rdev);
5978 cb->seq = rdev->bss_generation;
5980 list_for_each_entry(scan, &rdev->bss_list, list) {
5983 if (nl80211_send_bss(skb, cb,
5984 cb->nlh->nlmsg_seq, NLM_F_MULTI,
5985 rdev, wdev, scan) < 0) {
5991 spin_unlock_bh(&rdev->bss_lock);
5995 nl80211_finish_wdev_dump(rdev);
6000 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6001 int flags, struct net_device *dev,
6002 struct survey_info *survey)
6005 struct nlattr *infoattr;
6007 hdr = nl80211hdr_put(msg, portid, seq, flags,
6008 NL80211_CMD_NEW_SURVEY_RESULTS);
6012 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6013 goto nla_put_failure;
6015 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6017 goto nla_put_failure;
6019 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6020 survey->channel->center_freq))
6021 goto nla_put_failure;
6023 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6024 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6025 goto nla_put_failure;
6026 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6027 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6028 goto nla_put_failure;
6029 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6030 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6031 survey->channel_time))
6032 goto nla_put_failure;
6033 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6034 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6035 survey->channel_time_busy))
6036 goto nla_put_failure;
6037 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6038 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6039 survey->channel_time_ext_busy))
6040 goto nla_put_failure;
6041 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6042 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6043 survey->channel_time_rx))
6044 goto nla_put_failure;
6045 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6046 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6047 survey->channel_time_tx))
6048 goto nla_put_failure;
6050 nla_nest_end(msg, infoattr);
6052 return genlmsg_end(msg, hdr);
6055 genlmsg_cancel(msg, hdr);
6059 static int nl80211_dump_survey(struct sk_buff *skb,
6060 struct netlink_callback *cb)
6062 struct survey_info survey;
6063 struct cfg80211_registered_device *dev;
6064 struct wireless_dev *wdev;
6065 int survey_idx = cb->args[2];
6068 res = nl80211_prepare_wdev_dump(skb, cb, &dev, &wdev);
6072 if (!wdev->netdev) {
6077 if (!dev->ops->dump_survey) {
6083 struct ieee80211_channel *chan;
6085 res = rdev_dump_survey(dev, wdev->netdev, survey_idx, &survey);
6091 /* Survey without a channel doesn't make sense */
6092 if (!survey.channel) {
6097 chan = ieee80211_get_channel(&dev->wiphy,
6098 survey.channel->center_freq);
6099 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6104 if (nl80211_send_survey(skb,
6105 NETLINK_CB(cb->skb).portid,
6106 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6107 wdev->netdev, &survey) < 0)
6113 cb->args[2] = survey_idx;
6116 nl80211_finish_wdev_dump(dev);
6120 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6122 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6123 NL80211_WPA_VERSION_2));
6126 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6128 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6129 struct net_device *dev = info->user_ptr[1];
6130 struct ieee80211_channel *chan;
6131 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6132 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6133 enum nl80211_auth_type auth_type;
6134 struct key_parse key;
6135 bool local_state_change;
6137 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6140 if (!info->attrs[NL80211_ATTR_MAC])
6143 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6146 if (!info->attrs[NL80211_ATTR_SSID])
6149 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6152 err = nl80211_parse_key(info, &key);
6157 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6159 if (!key.p.key || !key.p.key_len)
6161 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6162 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6163 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6164 key.p.key_len != WLAN_KEY_LEN_WEP104))
6176 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6177 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6186 if (!rdev->ops->auth)
6189 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6190 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6193 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6194 chan = ieee80211_get_channel(&rdev->wiphy,
6195 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6196 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6199 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6200 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6202 if (info->attrs[NL80211_ATTR_IE]) {
6203 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6204 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6207 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6208 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6211 if (auth_type == NL80211_AUTHTYPE_SAE &&
6212 !info->attrs[NL80211_ATTR_SAE_DATA])
6215 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6216 if (auth_type != NL80211_AUTHTYPE_SAE)
6218 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6219 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6220 /* need to include at least Auth Transaction and Status Code */
6221 if (sae_data_len < 4)
6225 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6228 * Since we no longer track auth state, ignore
6229 * requests to only change local state.
6231 if (local_state_change)
6234 wdev_lock(dev->ieee80211_ptr);
6235 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6236 ssid, ssid_len, ie, ie_len,
6237 key.p.key, key.p.key_len, key.idx,
6238 sae_data, sae_data_len);
6239 wdev_unlock(dev->ieee80211_ptr);
6243 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6244 struct genl_info *info,
6245 struct cfg80211_crypto_settings *settings,
6248 memset(settings, 0, sizeof(*settings));
6250 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6252 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6254 proto = nla_get_u16(
6255 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6256 settings->control_port_ethertype = cpu_to_be16(proto);
6257 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6260 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6261 settings->control_port_no_encrypt = true;
6263 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6265 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6269 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6270 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6271 settings->n_ciphers_pairwise = len / sizeof(u32);
6273 if (len % sizeof(u32))
6276 if (settings->n_ciphers_pairwise > cipher_limit)
6279 memcpy(settings->ciphers_pairwise, data, len);
6281 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6282 if (!cfg80211_supported_cipher_suite(
6284 settings->ciphers_pairwise[i]))
6288 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6289 settings->cipher_group =
6290 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6291 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6292 settings->cipher_group))
6296 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6297 settings->wpa_versions =
6298 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6299 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6303 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6307 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6308 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6309 settings->n_akm_suites = len / sizeof(u32);
6311 if (len % sizeof(u32))
6314 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6317 memcpy(settings->akm_suites, data, len);
6323 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6325 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6326 struct net_device *dev = info->user_ptr[1];
6327 struct ieee80211_channel *chan;
6328 struct cfg80211_assoc_request req = {};
6329 const u8 *bssid, *ssid;
6330 int err, ssid_len = 0;
6332 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6335 if (!info->attrs[NL80211_ATTR_MAC] ||
6336 !info->attrs[NL80211_ATTR_SSID] ||
6337 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6340 if (!rdev->ops->assoc)
6343 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6344 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6347 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6349 chan = ieee80211_get_channel(&rdev->wiphy,
6350 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
6351 if (!chan || (chan->flags & IEEE80211_CHAN_DISABLED))
6354 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6355 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6357 if (info->attrs[NL80211_ATTR_IE]) {
6358 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6359 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6362 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6363 enum nl80211_mfp mfp =
6364 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6365 if (mfp == NL80211_MFP_REQUIRED)
6367 else if (mfp != NL80211_MFP_NO)
6371 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6372 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6374 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6375 req.flags |= ASSOC_REQ_DISABLE_HT;
6377 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6378 memcpy(&req.ht_capa_mask,
6379 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6380 sizeof(req.ht_capa_mask));
6382 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6383 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6385 memcpy(&req.ht_capa,
6386 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6387 sizeof(req.ht_capa));
6390 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6391 req.flags |= ASSOC_REQ_DISABLE_VHT;
6393 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6394 memcpy(&req.vht_capa_mask,
6395 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6396 sizeof(req.vht_capa_mask));
6398 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6399 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6401 memcpy(&req.vht_capa,
6402 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6403 sizeof(req.vht_capa));
6406 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6408 wdev_lock(dev->ieee80211_ptr);
6409 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6410 ssid, ssid_len, &req);
6411 wdev_unlock(dev->ieee80211_ptr);
6417 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6420 struct net_device *dev = info->user_ptr[1];
6421 const u8 *ie = NULL, *bssid;
6422 int ie_len = 0, err;
6424 bool local_state_change;
6426 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6429 if (!info->attrs[NL80211_ATTR_MAC])
6432 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6435 if (!rdev->ops->deauth)
6438 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6439 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6442 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6444 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6445 if (reason_code == 0) {
6446 /* Reason Code 0 is reserved */
6450 if (info->attrs[NL80211_ATTR_IE]) {
6451 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6452 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6455 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6457 wdev_lock(dev->ieee80211_ptr);
6458 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6459 local_state_change);
6460 wdev_unlock(dev->ieee80211_ptr);
6464 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6466 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6467 struct net_device *dev = info->user_ptr[1];
6468 const u8 *ie = NULL, *bssid;
6469 int ie_len = 0, err;
6471 bool local_state_change;
6473 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6476 if (!info->attrs[NL80211_ATTR_MAC])
6479 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6482 if (!rdev->ops->disassoc)
6485 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6486 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6489 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6491 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6492 if (reason_code == 0) {
6493 /* Reason Code 0 is reserved */
6497 if (info->attrs[NL80211_ATTR_IE]) {
6498 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6499 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6502 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6504 wdev_lock(dev->ieee80211_ptr);
6505 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6506 local_state_change);
6507 wdev_unlock(dev->ieee80211_ptr);
6512 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6513 int mcast_rate[IEEE80211_NUM_BANDS],
6516 struct wiphy *wiphy = &rdev->wiphy;
6520 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6521 struct ieee80211_supported_band *sband;
6523 sband = wiphy->bands[band];
6527 for (i = 0; i < sband->n_bitrates; i++) {
6528 if (sband->bitrates[i].bitrate == rateval) {
6529 mcast_rate[band] = i + 1;
6539 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6541 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6542 struct net_device *dev = info->user_ptr[1];
6543 struct cfg80211_ibss_params ibss;
6544 struct wiphy *wiphy;
6545 struct cfg80211_cached_keys *connkeys = NULL;
6548 memset(&ibss, 0, sizeof(ibss));
6550 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6553 if (!info->attrs[NL80211_ATTR_SSID] ||
6554 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6557 ibss.beacon_interval = 100;
6559 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6560 ibss.beacon_interval =
6561 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6562 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6566 if (!rdev->ops->join_ibss)
6569 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6572 wiphy = &rdev->wiphy;
6574 if (info->attrs[NL80211_ATTR_MAC]) {
6575 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6577 if (!is_valid_ether_addr(ibss.bssid))
6580 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6581 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6583 if (info->attrs[NL80211_ATTR_IE]) {
6584 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6585 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6588 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6592 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef))
6595 switch (ibss.chandef.width) {
6596 case NL80211_CHAN_WIDTH_5:
6597 case NL80211_CHAN_WIDTH_10:
6598 case NL80211_CHAN_WIDTH_20_NOHT:
6600 case NL80211_CHAN_WIDTH_20:
6601 case NL80211_CHAN_WIDTH_40:
6602 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6608 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6609 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6611 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6613 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6615 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6616 struct ieee80211_supported_band *sband =
6617 wiphy->bands[ibss.chandef.chan->band];
6619 err = ieee80211_get_ratemask(sband, rates, n_rates,
6625 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6626 memcpy(&ibss.ht_capa_mask,
6627 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6628 sizeof(ibss.ht_capa_mask));
6630 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6631 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6633 memcpy(&ibss.ht_capa,
6634 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6635 sizeof(ibss.ht_capa));
6638 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6639 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6640 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6643 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6646 connkeys = nl80211_parse_connkeys(rdev,
6647 info->attrs[NL80211_ATTR_KEYS],
6649 if (IS_ERR(connkeys))
6650 return PTR_ERR(connkeys);
6652 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6660 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6662 ibss.userspace_handles_dfs =
6663 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6665 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6671 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6673 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6674 struct net_device *dev = info->user_ptr[1];
6676 if (!rdev->ops->leave_ibss)
6679 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6682 return cfg80211_leave_ibss(rdev, dev, false);
6685 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6687 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6688 struct net_device *dev = info->user_ptr[1];
6689 int mcast_rate[IEEE80211_NUM_BANDS];
6693 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6694 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6697 if (!rdev->ops->set_mcast_rate)
6700 memset(mcast_rate, 0, sizeof(mcast_rate));
6702 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6705 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6706 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6709 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6714 static struct sk_buff *
6715 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6716 int approxlen, u32 portid, u32 seq,
6717 enum nl80211_commands cmd,
6718 enum nl80211_attrs attr,
6719 const struct nl80211_vendor_cmd_info *info,
6722 struct sk_buff *skb;
6724 struct nlattr *data;
6726 skb = nlmsg_new(approxlen + 100, gfp);
6730 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6736 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6737 goto nla_put_failure;
6740 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6742 goto nla_put_failure;
6743 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6745 goto nla_put_failure;
6748 data = nla_nest_start(skb, attr);
6750 ((void **)skb->cb)[0] = rdev;
6751 ((void **)skb->cb)[1] = hdr;
6752 ((void **)skb->cb)[2] = data;
6761 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6762 enum nl80211_commands cmd,
6763 enum nl80211_attrs attr,
6764 int vendor_event_idx,
6765 int approxlen, gfp_t gfp)
6767 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
6768 const struct nl80211_vendor_cmd_info *info;
6771 case NL80211_CMD_TESTMODE:
6772 if (WARN_ON(vendor_event_idx != -1))
6776 case NL80211_CMD_VENDOR:
6777 if (WARN_ON(vendor_event_idx < 0 ||
6778 vendor_event_idx >= wiphy->n_vendor_events))
6780 info = &wiphy->vendor_events[vendor_event_idx];
6787 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
6788 cmd, attr, info, gfp);
6790 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
6792 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
6794 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
6795 void *hdr = ((void **)skb->cb)[1];
6796 struct nlattr *data = ((void **)skb->cb)[2];
6797 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
6799 nla_nest_end(skb, data);
6800 genlmsg_end(skb, hdr);
6802 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
6803 mcgrp = NL80211_MCGRP_VENDOR;
6805 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
6808 EXPORT_SYMBOL(__cfg80211_send_event_skb);
6810 #ifdef CONFIG_NL80211_TESTMODE
6811 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
6813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6814 struct wireless_dev *wdev =
6815 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
6818 if (!rdev->ops->testmode_cmd)
6822 err = PTR_ERR(wdev);
6826 } else if (wdev->wiphy != &rdev->wiphy) {
6830 if (!info->attrs[NL80211_ATTR_TESTDATA])
6833 rdev->cur_cmd_info = info;
6834 err = rdev_testmode_cmd(rdev, wdev,
6835 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
6836 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
6837 rdev->cur_cmd_info = NULL;
6842 static int nl80211_testmode_dump(struct sk_buff *skb,
6843 struct netlink_callback *cb)
6845 struct cfg80211_registered_device *rdev;
6855 * 0 is a valid index, but not valid for args[0],
6856 * so we need to offset by 1.
6858 phy_idx = cb->args[0] - 1;
6860 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
6861 nl80211_fam.attrbuf, nl80211_fam.maxattr,
6866 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
6867 nl80211_fam.attrbuf);
6869 err = PTR_ERR(rdev);
6872 phy_idx = rdev->wiphy_idx;
6875 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
6877 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
6881 data = nla_data((void *)cb->args[1]);
6882 data_len = nla_len((void *)cb->args[1]);
6885 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
6891 if (!rdev->ops->testmode_dump) {
6897 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
6898 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6899 NL80211_CMD_TESTMODE);
6900 struct nlattr *tmdata;
6905 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
6906 genlmsg_cancel(skb, hdr);
6910 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
6912 genlmsg_cancel(skb, hdr);
6915 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
6916 nla_nest_end(skb, tmdata);
6918 if (err == -ENOBUFS || err == -ENOENT) {
6919 genlmsg_cancel(skb, hdr);
6922 genlmsg_cancel(skb, hdr);
6926 genlmsg_end(skb, hdr);
6931 cb->args[0] = phy_idx + 1;
6938 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
6940 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6941 struct net_device *dev = info->user_ptr[1];
6942 struct cfg80211_connect_params connect;
6943 struct wiphy *wiphy;
6944 struct cfg80211_cached_keys *connkeys = NULL;
6947 memset(&connect, 0, sizeof(connect));
6949 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6952 if (!info->attrs[NL80211_ATTR_SSID] ||
6953 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6956 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
6958 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6959 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
6960 NL80211_CMD_CONNECT))
6963 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
6965 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
6967 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
6968 NL80211_MAX_NR_CIPHER_SUITES);
6972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6976 wiphy = &rdev->wiphy;
6978 connect.bg_scan_period = -1;
6979 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
6980 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
6981 connect.bg_scan_period =
6982 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
6985 if (info->attrs[NL80211_ATTR_MAC])
6986 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6987 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6988 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6990 if (info->attrs[NL80211_ATTR_IE]) {
6991 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6992 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6995 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6996 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6997 if (connect.mfp != NL80211_MFP_REQUIRED &&
6998 connect.mfp != NL80211_MFP_NO)
7001 connect.mfp = NL80211_MFP_NO;
7004 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7006 ieee80211_get_channel(wiphy,
7007 nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
7008 if (!connect.channel ||
7009 connect.channel->flags & IEEE80211_CHAN_DISABLED)
7013 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7014 connkeys = nl80211_parse_connkeys(rdev,
7015 info->attrs[NL80211_ATTR_KEYS], NULL);
7016 if (IS_ERR(connkeys))
7017 return PTR_ERR(connkeys);
7020 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7021 connect.flags |= ASSOC_REQ_DISABLE_HT;
7023 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7024 memcpy(&connect.ht_capa_mask,
7025 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7026 sizeof(connect.ht_capa_mask));
7028 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7029 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7033 memcpy(&connect.ht_capa,
7034 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7035 sizeof(connect.ht_capa));
7038 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7039 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7041 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7042 memcpy(&connect.vht_capa_mask,
7043 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7044 sizeof(connect.vht_capa_mask));
7046 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7047 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7051 memcpy(&connect.vht_capa,
7052 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7053 sizeof(connect.vht_capa));
7056 wdev_lock(dev->ieee80211_ptr);
7057 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7058 wdev_unlock(dev->ieee80211_ptr);
7064 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7066 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7067 struct net_device *dev = info->user_ptr[1];
7071 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7072 reason = WLAN_REASON_DEAUTH_LEAVING;
7074 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7079 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7080 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7083 wdev_lock(dev->ieee80211_ptr);
7084 ret = cfg80211_disconnect(rdev, dev, reason, true);
7085 wdev_unlock(dev->ieee80211_ptr);
7089 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7096 if (!info->attrs[NL80211_ATTR_PID])
7099 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7101 net = get_net_ns_by_pid(pid);
7103 return PTR_ERR(net);
7107 /* check if anything to do */
7108 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7109 err = cfg80211_switch_netns(rdev, net);
7115 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7117 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7118 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7119 struct cfg80211_pmksa *pmksa) = NULL;
7120 struct net_device *dev = info->user_ptr[1];
7121 struct cfg80211_pmksa pmksa;
7123 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7125 if (!info->attrs[NL80211_ATTR_MAC])
7128 if (!info->attrs[NL80211_ATTR_PMKID])
7131 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7132 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7134 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7135 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7138 switch (info->genlhdr->cmd) {
7139 case NL80211_CMD_SET_PMKSA:
7140 rdev_ops = rdev->ops->set_pmksa;
7142 case NL80211_CMD_DEL_PMKSA:
7143 rdev_ops = rdev->ops->del_pmksa;
7153 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7156 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7158 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7159 struct net_device *dev = info->user_ptr[1];
7161 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7162 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7165 if (!rdev->ops->flush_pmksa)
7168 return rdev_flush_pmksa(rdev, dev);
7171 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7174 struct net_device *dev = info->user_ptr[1];
7175 u8 action_code, dialog_token;
7179 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7180 !rdev->ops->tdls_mgmt)
7183 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7184 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7185 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7186 !info->attrs[NL80211_ATTR_IE] ||
7187 !info->attrs[NL80211_ATTR_MAC])
7190 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7191 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7192 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7193 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7195 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7196 dialog_token, status_code,
7197 nla_data(info->attrs[NL80211_ATTR_IE]),
7198 nla_len(info->attrs[NL80211_ATTR_IE]));
7201 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7203 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7204 struct net_device *dev = info->user_ptr[1];
7205 enum nl80211_tdls_operation operation;
7208 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7209 !rdev->ops->tdls_oper)
7212 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7213 !info->attrs[NL80211_ATTR_MAC])
7216 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7217 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7219 return rdev_tdls_oper(rdev, dev, peer, operation);
7222 static int nl80211_remain_on_channel(struct sk_buff *skb,
7223 struct genl_info *info)
7225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7226 struct wireless_dev *wdev = info->user_ptr[1];
7227 struct cfg80211_chan_def chandef;
7228 struct sk_buff *msg;
7234 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7235 !info->attrs[NL80211_ATTR_DURATION])
7238 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7240 if (!rdev->ops->remain_on_channel ||
7241 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7245 * We should be on that channel for at least a minimum amount of
7246 * time (10ms) but no longer than the driver supports.
7248 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7249 duration > rdev->wiphy.max_remain_on_channel_duration)
7252 err = nl80211_parse_chandef(rdev, info, &chandef);
7256 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7260 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7261 NL80211_CMD_REMAIN_ON_CHANNEL);
7267 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7273 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7274 goto nla_put_failure;
7276 genlmsg_end(msg, hdr);
7278 return genlmsg_reply(msg, info);
7287 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7288 struct genl_info *info)
7290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7291 struct wireless_dev *wdev = info->user_ptr[1];
7294 if (!info->attrs[NL80211_ATTR_COOKIE])
7297 if (!rdev->ops->cancel_remain_on_channel)
7300 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7302 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7305 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7306 u8 *rates, u8 rates_len)
7311 for (i = 0; i < rates_len; i++) {
7312 int rate = (rates[i] & 0x7f) * 5;
7314 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7315 struct ieee80211_rate *srate =
7316 &sband->bitrates[ridx];
7317 if (rate == srate->bitrate) {
7322 if (ridx == sband->n_bitrates)
7323 return 0; /* rate not found */
7329 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7330 u8 *rates, u8 rates_len,
7331 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7335 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7337 for (i = 0; i < rates_len; i++) {
7340 ridx = rates[i] / 8;
7341 rbit = BIT(rates[i] % 8);
7343 /* check validity */
7344 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7347 /* check availability */
7348 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7357 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7361 switch (vht_mcs_map) {
7362 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7364 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7367 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7370 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7380 static void vht_build_mcs_mask(u16 vht_mcs_map,
7381 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7385 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7386 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7391 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7392 struct nl80211_txrate_vht *txrate,
7393 u16 mcs[NL80211_VHT_NSS_MAX])
7395 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7396 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7399 if (!sband->vht_cap.vht_supported)
7402 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7404 /* Build vht_mcs_mask from VHT capabilities */
7405 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7407 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7408 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7409 mcs[i] = txrate->mcs[i];
7417 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7418 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7419 .len = NL80211_MAX_SUPP_RATES },
7420 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7421 .len = NL80211_MAX_SUPP_HT_RATES },
7422 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7425 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7426 struct genl_info *info)
7428 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7430 struct cfg80211_bitrate_mask mask;
7432 struct net_device *dev = info->user_ptr[1];
7433 struct nlattr *tx_rates;
7434 struct ieee80211_supported_band *sband;
7437 if (!rdev->ops->set_bitrate_mask)
7440 memset(&mask, 0, sizeof(mask));
7441 /* Default to all rates enabled */
7442 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7443 sband = rdev->wiphy.bands[i];
7448 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7449 memcpy(mask.control[i].ht_mcs,
7450 sband->ht_cap.mcs.rx_mask,
7451 sizeof(mask.control[i].ht_mcs));
7453 if (!sband->vht_cap.vht_supported)
7456 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7457 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7460 /* if no rates are given set it back to the defaults */
7461 if (!info->attrs[NL80211_ATTR_TX_RATES])
7465 * The nested attribute uses enum nl80211_band as the index. This maps
7466 * directly to the enum ieee80211_band values used in cfg80211.
7468 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7469 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem)
7471 enum ieee80211_band band = nla_type(tx_rates);
7472 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7474 sband = rdev->wiphy.bands[band];
7477 nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7478 nla_len(tx_rates), nl80211_txattr_policy);
7479 if (tb[NL80211_TXRATE_LEGACY]) {
7480 mask.control[band].legacy = rateset_to_mask(
7482 nla_data(tb[NL80211_TXRATE_LEGACY]),
7483 nla_len(tb[NL80211_TXRATE_LEGACY]));
7484 if ((mask.control[band].legacy == 0) &&
7485 nla_len(tb[NL80211_TXRATE_LEGACY]))
7488 if (tb[NL80211_TXRATE_HT]) {
7489 if (!ht_rateset_to_mask(
7491 nla_data(tb[NL80211_TXRATE_HT]),
7492 nla_len(tb[NL80211_TXRATE_HT]),
7493 mask.control[band].ht_mcs))
7496 if (tb[NL80211_TXRATE_VHT]) {
7497 if (!vht_set_mcs_mask(
7499 nla_data(tb[NL80211_TXRATE_VHT]),
7500 mask.control[band].vht_mcs))
7504 if (mask.control[band].legacy == 0) {
7505 /* don't allow empty legacy rates if HT or VHT
7506 * are not even supported.
7508 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7509 rdev->wiphy.bands[band]->vht_cap.vht_supported))
7512 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7513 if (mask.control[band].ht_mcs[i])
7516 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7517 if (mask.control[band].vht_mcs[i])
7520 /* legacy and mcs rates may not be both empty */
7526 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7529 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7531 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7532 struct wireless_dev *wdev = info->user_ptr[1];
7533 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7535 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7538 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7539 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7541 switch (wdev->iftype) {
7542 case NL80211_IFTYPE_STATION:
7543 case NL80211_IFTYPE_ADHOC:
7544 case NL80211_IFTYPE_P2P_CLIENT:
7545 case NL80211_IFTYPE_AP:
7546 case NL80211_IFTYPE_AP_VLAN:
7547 case NL80211_IFTYPE_MESH_POINT:
7548 case NL80211_IFTYPE_P2P_GO:
7549 case NL80211_IFTYPE_P2P_DEVICE:
7555 /* not much point in registering if we can't reply */
7556 if (!rdev->ops->mgmt_tx)
7559 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7560 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7561 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7564 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7566 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7567 struct wireless_dev *wdev = info->user_ptr[1];
7568 struct cfg80211_chan_def chandef;
7572 struct sk_buff *msg = NULL;
7573 struct cfg80211_mgmt_tx_params params = {
7574 .dont_wait_for_ack =
7575 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7578 if (!info->attrs[NL80211_ATTR_FRAME])
7581 if (!rdev->ops->mgmt_tx)
7584 switch (wdev->iftype) {
7585 case NL80211_IFTYPE_P2P_DEVICE:
7586 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7588 case NL80211_IFTYPE_STATION:
7589 case NL80211_IFTYPE_ADHOC:
7590 case NL80211_IFTYPE_P2P_CLIENT:
7591 case NL80211_IFTYPE_AP:
7592 case NL80211_IFTYPE_AP_VLAN:
7593 case NL80211_IFTYPE_MESH_POINT:
7594 case NL80211_IFTYPE_P2P_GO:
7600 if (info->attrs[NL80211_ATTR_DURATION]) {
7601 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7603 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7606 * We should wait on the channel for at least a minimum amount
7607 * of time (10ms) but no longer than the driver supports.
7609 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7610 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7615 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7617 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7620 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7622 /* get the channel if any has been specified, otherwise pass NULL to
7623 * the driver. The latter will use the current one
7625 chandef.chan = NULL;
7626 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7627 err = nl80211_parse_chandef(rdev, info, &chandef);
7632 if (!chandef.chan && params.offchan)
7635 if (!params.dont_wait_for_ack) {
7636 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7640 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7648 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7649 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7650 params.chan = chandef.chan;
7651 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7656 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7657 goto nla_put_failure;
7659 genlmsg_end(msg, hdr);
7660 return genlmsg_reply(msg, info);
7672 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7674 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7675 struct wireless_dev *wdev = info->user_ptr[1];
7678 if (!info->attrs[NL80211_ATTR_COOKIE])
7681 if (!rdev->ops->mgmt_tx_cancel_wait)
7684 switch (wdev->iftype) {
7685 case NL80211_IFTYPE_STATION:
7686 case NL80211_IFTYPE_ADHOC:
7687 case NL80211_IFTYPE_P2P_CLIENT:
7688 case NL80211_IFTYPE_AP:
7689 case NL80211_IFTYPE_AP_VLAN:
7690 case NL80211_IFTYPE_P2P_GO:
7691 case NL80211_IFTYPE_P2P_DEVICE:
7697 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7699 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7702 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7705 struct wireless_dev *wdev;
7706 struct net_device *dev = info->user_ptr[1];
7711 if (!info->attrs[NL80211_ATTR_PS_STATE])
7714 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
7716 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
7719 wdev = dev->ieee80211_ptr;
7721 if (!rdev->ops->set_power_mgmt)
7724 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
7726 if (state == wdev->ps)
7729 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
7735 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
7737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7738 enum nl80211_ps_state ps_state;
7739 struct wireless_dev *wdev;
7740 struct net_device *dev = info->user_ptr[1];
7741 struct sk_buff *msg;
7745 wdev = dev->ieee80211_ptr;
7747 if (!rdev->ops->set_power_mgmt)
7750 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7754 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7755 NL80211_CMD_GET_POWER_SAVE);
7762 ps_state = NL80211_PS_ENABLED;
7764 ps_state = NL80211_PS_DISABLED;
7766 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
7767 goto nla_put_failure;
7769 genlmsg_end(msg, hdr);
7770 return genlmsg_reply(msg, info);
7779 static struct nla_policy
7780 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] __read_mostly = {
7781 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
7782 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
7783 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
7784 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
7785 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
7786 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
7789 static int nl80211_set_cqm_txe(struct genl_info *info,
7790 u32 rate, u32 pkts, u32 intvl)
7792 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7793 struct net_device *dev = info->user_ptr[1];
7794 struct wireless_dev *wdev = dev->ieee80211_ptr;
7796 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
7799 if (!rdev->ops->set_cqm_txe_config)
7802 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7803 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7806 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
7809 static int nl80211_set_cqm_rssi(struct genl_info *info,
7810 s32 threshold, u32 hysteresis)
7812 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7813 struct net_device *dev = info->user_ptr[1];
7814 struct wireless_dev *wdev = dev->ieee80211_ptr;
7819 /* disabling - hysteresis should also be zero then */
7823 if (!rdev->ops->set_cqm_rssi_config)
7826 if (wdev->iftype != NL80211_IFTYPE_STATION &&
7827 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
7830 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
7833 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
7835 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
7839 cqm = info->attrs[NL80211_ATTR_CQM];
7843 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
7844 nl80211_attr_cqm_policy);
7848 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
7849 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
7850 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
7851 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
7853 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
7856 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
7857 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
7858 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
7859 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
7860 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
7861 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
7863 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
7869 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
7871 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7872 struct net_device *dev = info->user_ptr[1];
7873 struct mesh_config cfg;
7874 struct mesh_setup setup;
7877 /* start with default */
7878 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
7879 memcpy(&setup, &default_mesh_setup, sizeof(setup));
7881 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
7882 /* and parse parameters if given */
7883 err = nl80211_parse_mesh_config(info, &cfg, NULL);
7888 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
7889 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
7892 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
7893 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
7895 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7896 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
7897 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7900 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7901 setup.beacon_interval =
7902 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7903 if (setup.beacon_interval < 10 ||
7904 setup.beacon_interval > 10000)
7908 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
7910 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
7911 if (setup.dtim_period < 1 || setup.dtim_period > 100)
7915 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
7916 /* parse additional setup parameters if given */
7917 err = nl80211_parse_mesh_setup(info, &setup);
7923 cfg.auto_open_plinks = false;
7925 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7926 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
7930 /* cfg80211_join_mesh() will sort it out */
7931 setup.chandef.chan = NULL;
7934 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7935 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7937 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7938 struct ieee80211_supported_band *sband;
7940 if (!setup.chandef.chan)
7943 sband = rdev->wiphy.bands[setup.chandef.chan->band];
7945 err = ieee80211_get_ratemask(sband, rates, n_rates,
7946 &setup.basic_rates);
7951 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
7954 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
7956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7957 struct net_device *dev = info->user_ptr[1];
7959 return cfg80211_leave_mesh(rdev, dev);
7963 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
7964 struct cfg80211_registered_device *rdev)
7966 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
7967 struct nlattr *nl_pats, *nl_pat;
7970 if (!wowlan->n_patterns)
7973 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
7977 for (i = 0; i < wowlan->n_patterns; i++) {
7978 nl_pat = nla_nest_start(msg, i + 1);
7981 pat_len = wowlan->patterns[i].pattern_len;
7982 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
7983 wowlan->patterns[i].mask) ||
7984 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
7985 wowlan->patterns[i].pattern) ||
7986 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
7987 wowlan->patterns[i].pkt_offset))
7989 nla_nest_end(msg, nl_pat);
7991 nla_nest_end(msg, nl_pats);
7996 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
7997 struct cfg80211_wowlan_tcp *tcp)
7999 struct nlattr *nl_tcp;
8004 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8008 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8009 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8010 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8011 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8012 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8013 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8014 tcp->payload_len, tcp->payload) ||
8015 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8016 tcp->data_interval) ||
8017 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8018 tcp->wake_len, tcp->wake_data) ||
8019 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8020 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8023 if (tcp->payload_seq.len &&
8024 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8025 sizeof(tcp->payload_seq), &tcp->payload_seq))
8028 if (tcp->payload_tok.len &&
8029 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8030 sizeof(tcp->payload_tok) + tcp->tokens_size,
8034 nla_nest_end(msg, nl_tcp);
8039 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8041 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8042 struct sk_buff *msg;
8044 u32 size = NLMSG_DEFAULT_SIZE;
8046 if (!rdev->wiphy.wowlan)
8049 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8050 /* adjust size to have room for all the data */
8051 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8052 rdev->wiphy.wowlan_config->tcp->payload_len +
8053 rdev->wiphy.wowlan_config->tcp->wake_len +
8054 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8057 msg = nlmsg_new(size, GFP_KERNEL);
8061 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8062 NL80211_CMD_GET_WOWLAN);
8064 goto nla_put_failure;
8066 if (rdev->wiphy.wowlan_config) {
8067 struct nlattr *nl_wowlan;
8069 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8071 goto nla_put_failure;
8073 if ((rdev->wiphy.wowlan_config->any &&
8074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8075 (rdev->wiphy.wowlan_config->disconnect &&
8076 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8077 (rdev->wiphy.wowlan_config->magic_pkt &&
8078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8079 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8080 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8081 (rdev->wiphy.wowlan_config->eap_identity_req &&
8082 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8083 (rdev->wiphy.wowlan_config->four_way_handshake &&
8084 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8085 (rdev->wiphy.wowlan_config->rfkill_release &&
8086 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8087 goto nla_put_failure;
8089 if (nl80211_send_wowlan_patterns(msg, rdev))
8090 goto nla_put_failure;
8092 if (nl80211_send_wowlan_tcp(msg,
8093 rdev->wiphy.wowlan_config->tcp))
8094 goto nla_put_failure;
8096 nla_nest_end(msg, nl_wowlan);
8099 genlmsg_end(msg, hdr);
8100 return genlmsg_reply(msg, info);
8107 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8108 struct nlattr *attr,
8109 struct cfg80211_wowlan *trig)
8111 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8112 struct cfg80211_wowlan_tcp *cfg;
8113 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8114 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8116 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8119 if (!rdev->wiphy.wowlan->tcp)
8122 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8123 nla_data(attr), nla_len(attr),
8124 nl80211_wowlan_tcp_policy);
8128 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8129 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8130 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8131 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8132 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8133 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8134 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8135 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8138 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8139 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8142 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8143 rdev->wiphy.wowlan->tcp->data_interval_max ||
8144 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8147 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8148 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8151 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8152 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8155 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8156 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8158 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8159 tokens_size = tokln - sizeof(*tok);
8161 if (!tok->len || tokens_size % tok->len)
8163 if (!rdev->wiphy.wowlan->tcp->tok)
8165 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8167 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8169 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8171 if (tok->offset + tok->len > data_size)
8175 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8176 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8177 if (!rdev->wiphy.wowlan->tcp->seq)
8179 if (seq->len == 0 || seq->len > 4)
8181 if (seq->len + seq->offset > data_size)
8185 size = sizeof(*cfg);
8187 size += wake_size + wake_mask_size;
8188 size += tokens_size;
8190 cfg = kzalloc(size, GFP_KERNEL);
8193 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8194 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8195 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8197 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8198 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8202 /* allocate a socket and port for it and use it */
8203 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8204 IPPROTO_TCP, &cfg->sock, 1);
8209 if (inet_csk_get_port(cfg->sock->sk, port)) {
8210 sock_release(cfg->sock);
8214 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8220 cfg->src_port = port;
8223 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8224 cfg->payload_len = data_size;
8225 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8226 memcpy((void *)cfg->payload,
8227 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8230 cfg->payload_seq = *seq;
8231 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8232 cfg->wake_len = wake_size;
8233 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8234 memcpy((void *)cfg->wake_data,
8235 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8237 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8238 data_size + wake_size;
8239 memcpy((void *)cfg->wake_mask,
8240 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8243 cfg->tokens_size = tokens_size;
8244 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8252 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8255 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8256 struct cfg80211_wowlan new_triggers = {};
8257 struct cfg80211_wowlan *ntrig;
8258 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8260 bool prev_enabled = rdev->wiphy.wowlan_config;
8265 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8266 cfg80211_rdev_free_wowlan(rdev);
8267 rdev->wiphy.wowlan_config = NULL;
8271 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8272 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8273 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8274 nl80211_wowlan_policy);
8278 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8279 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8281 new_triggers.any = true;
8284 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8285 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8287 new_triggers.disconnect = true;
8290 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8291 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8293 new_triggers.magic_pkt = true;
8296 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8299 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8300 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8302 new_triggers.gtk_rekey_failure = true;
8305 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8306 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8308 new_triggers.eap_identity_req = true;
8311 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8312 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8314 new_triggers.four_way_handshake = true;
8317 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8318 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8320 new_triggers.rfkill_release = true;
8323 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8326 int rem, pat_len, mask_len, pkt_offset;
8327 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8329 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8332 if (n_patterns > wowlan->n_patterns)
8335 new_triggers.patterns = kcalloc(n_patterns,
8336 sizeof(new_triggers.patterns[0]),
8338 if (!new_triggers.patterns)
8341 new_triggers.n_patterns = n_patterns;
8344 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8346 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8347 nla_len(pat), NULL);
8349 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8350 !pat_tb[NL80211_PKTPAT_PATTERN])
8352 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8353 mask_len = DIV_ROUND_UP(pat_len, 8);
8354 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8356 if (pat_len > wowlan->pattern_max_len ||
8357 pat_len < wowlan->pattern_min_len)
8360 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8363 pkt_offset = nla_get_u32(
8364 pat_tb[NL80211_PKTPAT_OFFSET]);
8365 if (pkt_offset > wowlan->max_pkt_offset)
8367 new_triggers.patterns[i].pkt_offset = pkt_offset;
8369 new_triggers.patterns[i].mask =
8370 kmalloc(mask_len + pat_len, GFP_KERNEL);
8371 if (!new_triggers.patterns[i].mask) {
8375 new_triggers.patterns[i].pattern =
8376 new_triggers.patterns[i].mask + mask_len;
8377 memcpy(new_triggers.patterns[i].mask,
8378 nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8380 new_triggers.patterns[i].pattern_len = pat_len;
8381 memcpy(new_triggers.patterns[i].pattern,
8382 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8388 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8389 err = nl80211_parse_wowlan_tcp(
8390 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8396 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8401 cfg80211_rdev_free_wowlan(rdev);
8402 rdev->wiphy.wowlan_config = ntrig;
8405 if (rdev->ops->set_wakeup &&
8406 prev_enabled != !!rdev->wiphy.wowlan_config)
8407 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8411 for (i = 0; i < new_triggers.n_patterns; i++)
8412 kfree(new_triggers.patterns[i].mask);
8413 kfree(new_triggers.patterns);
8414 if (new_triggers.tcp && new_triggers.tcp->sock)
8415 sock_release(new_triggers.tcp->sock);
8416 kfree(new_triggers.tcp);
8421 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8422 struct cfg80211_registered_device *rdev)
8424 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8426 struct cfg80211_coalesce_rules *rule;
8428 if (!rdev->coalesce->n_rules)
8431 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8435 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8436 nl_rule = nla_nest_start(msg, i + 1);
8440 rule = &rdev->coalesce->rules[i];
8441 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8445 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8449 nl_pats = nla_nest_start(msg,
8450 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8454 for (j = 0; j < rule->n_patterns; j++) {
8455 nl_pat = nla_nest_start(msg, j + 1);
8458 pat_len = rule->patterns[j].pattern_len;
8459 if (nla_put(msg, NL80211_PKTPAT_MASK,
8460 DIV_ROUND_UP(pat_len, 8),
8461 rule->patterns[j].mask) ||
8462 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8463 rule->patterns[j].pattern) ||
8464 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8465 rule->patterns[j].pkt_offset))
8467 nla_nest_end(msg, nl_pat);
8469 nla_nest_end(msg, nl_pats);
8470 nla_nest_end(msg, nl_rule);
8472 nla_nest_end(msg, nl_rules);
8477 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8479 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8480 struct sk_buff *msg;
8483 if (!rdev->wiphy.coalesce)
8486 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8490 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8491 NL80211_CMD_GET_COALESCE);
8493 goto nla_put_failure;
8495 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8496 goto nla_put_failure;
8498 genlmsg_end(msg, hdr);
8499 return genlmsg_reply(msg, info);
8506 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8508 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8510 struct cfg80211_coalesce_rules *rule;
8515 for (i = 0; i < coalesce->n_rules; i++) {
8516 rule = &coalesce->rules[i];
8517 for (j = 0; j < rule->n_patterns; j++)
8518 kfree(rule->patterns[j].mask);
8519 kfree(rule->patterns);
8521 kfree(coalesce->rules);
8523 rdev->coalesce = NULL;
8526 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8527 struct nlattr *rule,
8528 struct cfg80211_coalesce_rules *new_rule)
8531 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8532 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8533 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8534 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8536 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8537 nla_len(rule), nl80211_coalesce_policy);
8541 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8543 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8544 if (new_rule->delay > coalesce->max_delay)
8547 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8548 new_rule->condition =
8549 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8550 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8551 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8554 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8557 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8560 if (n_patterns > coalesce->n_patterns)
8563 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8565 if (!new_rule->patterns)
8568 new_rule->n_patterns = n_patterns;
8571 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8573 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8574 nla_len(pat), NULL);
8575 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8576 !pat_tb[NL80211_PKTPAT_PATTERN])
8578 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8579 mask_len = DIV_ROUND_UP(pat_len, 8);
8580 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8582 if (pat_len > coalesce->pattern_max_len ||
8583 pat_len < coalesce->pattern_min_len)
8586 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8589 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8590 if (pkt_offset > coalesce->max_pkt_offset)
8592 new_rule->patterns[i].pkt_offset = pkt_offset;
8594 new_rule->patterns[i].mask =
8595 kmalloc(mask_len + pat_len, GFP_KERNEL);
8596 if (!new_rule->patterns[i].mask)
8598 new_rule->patterns[i].pattern =
8599 new_rule->patterns[i].mask + mask_len;
8600 memcpy(new_rule->patterns[i].mask,
8601 nla_data(pat_tb[NL80211_PKTPAT_MASK]), mask_len);
8602 new_rule->patterns[i].pattern_len = pat_len;
8603 memcpy(new_rule->patterns[i].pattern,
8604 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]), pat_len);
8611 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8613 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8614 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8615 struct cfg80211_coalesce new_coalesce = {};
8616 struct cfg80211_coalesce *n_coalesce;
8617 int err, rem_rule, n_rules = 0, i, j;
8618 struct nlattr *rule;
8619 struct cfg80211_coalesce_rules *tmp_rule;
8621 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8624 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8625 cfg80211_rdev_free_coalesce(rdev);
8626 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8630 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8633 if (n_rules > coalesce->n_rules)
8636 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8638 if (!new_coalesce.rules)
8641 new_coalesce.n_rules = n_rules;
8644 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8646 err = nl80211_parse_coalesce_rule(rdev, rule,
8647 &new_coalesce.rules[i]);
8654 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8658 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8663 cfg80211_rdev_free_coalesce(rdev);
8664 rdev->coalesce = n_coalesce;
8668 for (i = 0; i < new_coalesce.n_rules; i++) {
8669 tmp_rule = &new_coalesce.rules[i];
8670 for (j = 0; j < tmp_rule->n_patterns; j++)
8671 kfree(tmp_rule->patterns[j].mask);
8672 kfree(tmp_rule->patterns);
8674 kfree(new_coalesce.rules);
8679 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8682 struct net_device *dev = info->user_ptr[1];
8683 struct wireless_dev *wdev = dev->ieee80211_ptr;
8684 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8685 struct cfg80211_gtk_rekey_data rekey_data;
8688 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8691 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8692 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8693 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8694 nl80211_rekey_policy);
8698 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8700 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8702 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8705 memcpy(rekey_data.kek, nla_data(tb[NL80211_REKEY_DATA_KEK]),
8707 memcpy(rekey_data.kck, nla_data(tb[NL80211_REKEY_DATA_KCK]),
8709 memcpy(rekey_data.replay_ctr,
8710 nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]),
8711 NL80211_REPLAY_CTR_LEN);
8714 if (!wdev->current_bss) {
8719 if (!rdev->ops->set_rekey_data) {
8724 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
8730 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
8731 struct genl_info *info)
8733 struct net_device *dev = info->user_ptr[1];
8734 struct wireless_dev *wdev = dev->ieee80211_ptr;
8736 if (wdev->iftype != NL80211_IFTYPE_AP &&
8737 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8740 if (wdev->ap_unexpected_nlportid)
8743 wdev->ap_unexpected_nlportid = info->snd_portid;
8747 static int nl80211_probe_client(struct sk_buff *skb,
8748 struct genl_info *info)
8750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8751 struct net_device *dev = info->user_ptr[1];
8752 struct wireless_dev *wdev = dev->ieee80211_ptr;
8753 struct sk_buff *msg;
8759 if (wdev->iftype != NL80211_IFTYPE_AP &&
8760 wdev->iftype != NL80211_IFTYPE_P2P_GO)
8763 if (!info->attrs[NL80211_ATTR_MAC])
8766 if (!rdev->ops->probe_client)
8769 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8773 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8774 NL80211_CMD_PROBE_CLIENT);
8780 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
8782 err = rdev_probe_client(rdev, dev, addr, &cookie);
8786 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8787 goto nla_put_failure;
8789 genlmsg_end(msg, hdr);
8791 return genlmsg_reply(msg, info);
8800 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
8802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8803 struct cfg80211_beacon_registration *reg, *nreg;
8806 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
8809 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
8813 /* First, check if already registered. */
8814 spin_lock_bh(&rdev->beacon_registrations_lock);
8815 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
8816 if (reg->nlportid == info->snd_portid) {
8821 /* Add it to the list */
8822 nreg->nlportid = info->snd_portid;
8823 list_add(&nreg->list, &rdev->beacon_registrations);
8825 spin_unlock_bh(&rdev->beacon_registrations_lock);
8829 spin_unlock_bh(&rdev->beacon_registrations_lock);
8834 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
8836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8837 struct wireless_dev *wdev = info->user_ptr[1];
8840 if (!rdev->ops->start_p2p_device)
8843 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8846 if (wdev->p2p_started)
8849 err = cfg80211_can_add_interface(rdev, wdev->iftype);
8853 err = rdev_start_p2p_device(rdev, wdev);
8857 wdev->p2p_started = true;
8863 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
8865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8866 struct wireless_dev *wdev = info->user_ptr[1];
8868 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
8871 if (!rdev->ops->stop_p2p_device)
8874 cfg80211_stop_p2p_device(rdev, wdev);
8879 static int nl80211_get_protocol_features(struct sk_buff *skb,
8880 struct genl_info *info)
8883 struct sk_buff *msg;
8885 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8889 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8890 NL80211_CMD_GET_PROTOCOL_FEATURES);
8892 goto nla_put_failure;
8894 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
8895 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
8896 goto nla_put_failure;
8898 genlmsg_end(msg, hdr);
8899 return genlmsg_reply(msg, info);
8906 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
8908 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8909 struct cfg80211_update_ft_ies_params ft_params;
8910 struct net_device *dev = info->user_ptr[1];
8912 if (!rdev->ops->update_ft_ies)
8915 if (!info->attrs[NL80211_ATTR_MDID] ||
8916 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
8919 memset(&ft_params, 0, sizeof(ft_params));
8920 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
8921 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
8922 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
8924 return rdev_update_ft_ies(rdev, dev, &ft_params);
8927 static int nl80211_crit_protocol_start(struct sk_buff *skb,
8928 struct genl_info *info)
8930 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8931 struct wireless_dev *wdev = info->user_ptr[1];
8932 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
8936 if (!rdev->ops->crit_proto_start)
8939 if (WARN_ON(!rdev->ops->crit_proto_stop))
8942 if (rdev->crit_proto_nlportid)
8945 /* determine protocol if provided */
8946 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
8947 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
8949 if (proto >= NUM_NL80211_CRIT_PROTO)
8952 /* timeout must be provided */
8953 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
8957 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
8959 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
8962 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
8964 rdev->crit_proto_nlportid = info->snd_portid;
8969 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
8970 struct genl_info *info)
8972 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8973 struct wireless_dev *wdev = info->user_ptr[1];
8975 if (!rdev->ops->crit_proto_stop)
8978 if (rdev->crit_proto_nlportid) {
8979 rdev->crit_proto_nlportid = 0;
8980 rdev_crit_proto_stop(rdev, wdev);
8985 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
8987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8988 struct wireless_dev *wdev =
8989 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
8993 if (!rdev->wiphy.vendor_commands)
8997 err = PTR_ERR(wdev);
9001 } else if (wdev->wiphy != &rdev->wiphy) {
9005 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9006 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9009 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9010 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9011 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9012 const struct wiphy_vendor_command *vcmd;
9016 vcmd = &rdev->wiphy.vendor_commands[i];
9018 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9021 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9022 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9025 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9029 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9031 !netif_running(wdev->netdev))
9033 if (!wdev->netdev && !wdev->p2p_started)
9040 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9041 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9042 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9045 rdev->cur_cmd_info = info;
9046 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9048 rdev->cur_cmd_info = NULL;
9055 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9056 enum nl80211_commands cmd,
9057 enum nl80211_attrs attr,
9060 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
9062 if (WARN_ON(!rdev->cur_cmd_info))
9065 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9066 rdev->cur_cmd_info->snd_portid,
9067 rdev->cur_cmd_info->snd_seq,
9068 cmd, attr, NULL, GFP_KERNEL);
9070 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9072 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9074 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9075 void *hdr = ((void **)skb->cb)[1];
9076 struct nlattr *data = ((void **)skb->cb)[2];
9078 if (WARN_ON(!rdev->cur_cmd_info)) {
9083 nla_nest_end(skb, data);
9084 genlmsg_end(skb, hdr);
9085 return genlmsg_reply(skb, rdev->cur_cmd_info);
9087 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9090 static int nl80211_set_qos_map(struct sk_buff *skb,
9091 struct genl_info *info)
9093 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9094 struct cfg80211_qos_map *qos_map = NULL;
9095 struct net_device *dev = info->user_ptr[1];
9096 u8 *pos, len, num_des, des_len, des;
9099 if (!rdev->ops->set_qos_map)
9102 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9103 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9104 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9106 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9107 len > IEEE80211_QOS_MAP_LEN_MAX)
9110 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9114 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9117 sizeof(struct cfg80211_dscp_exception);
9118 memcpy(qos_map->dscp_exception, pos, des_len);
9119 qos_map->num_des = num_des;
9120 for (des = 0; des < num_des; des++) {
9121 if (qos_map->dscp_exception[des].up > 7) {
9128 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9131 wdev_lock(dev->ieee80211_ptr);
9132 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9134 ret = rdev_set_qos_map(rdev, dev, qos_map);
9135 wdev_unlock(dev->ieee80211_ptr);
9141 #define NL80211_FLAG_NEED_WIPHY 0x01
9142 #define NL80211_FLAG_NEED_NETDEV 0x02
9143 #define NL80211_FLAG_NEED_RTNL 0x04
9144 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9145 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9146 NL80211_FLAG_CHECK_NETDEV_UP)
9147 #define NL80211_FLAG_NEED_WDEV 0x10
9148 /* If a netdev is associated, it must be UP, P2P must be started */
9149 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9150 NL80211_FLAG_CHECK_NETDEV_UP)
9152 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9153 struct genl_info *info)
9155 struct cfg80211_registered_device *rdev;
9156 struct wireless_dev *wdev;
9157 struct net_device *dev;
9158 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9163 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9164 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9168 return PTR_ERR(rdev);
9170 info->user_ptr[0] = rdev;
9171 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9172 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9175 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9180 return PTR_ERR(wdev);
9184 rdev = wiphy_to_dev(wdev->wiphy);
9186 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9193 info->user_ptr[1] = dev;
9195 info->user_ptr[1] = wdev;
9199 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9200 !netif_running(dev)) {
9207 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9208 if (!wdev->p2p_started) {
9215 info->user_ptr[0] = rdev;
9221 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
9222 struct genl_info *info)
9224 if (info->user_ptr[1]) {
9225 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9226 struct wireless_dev *wdev = info->user_ptr[1];
9229 dev_put(wdev->netdev);
9231 dev_put(info->user_ptr[1]);
9234 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9238 static const struct genl_ops nl80211_ops[] = {
9240 .cmd = NL80211_CMD_GET_WIPHY,
9241 .doit = nl80211_get_wiphy,
9242 .dumpit = nl80211_dump_wiphy,
9243 .done = nl80211_dump_wiphy_done,
9244 .policy = nl80211_policy,
9245 /* can be retrieved by unprivileged users */
9246 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9247 NL80211_FLAG_NEED_RTNL,
9250 .cmd = NL80211_CMD_SET_WIPHY,
9251 .doit = nl80211_set_wiphy,
9252 .policy = nl80211_policy,
9253 .flags = GENL_ADMIN_PERM,
9254 .internal_flags = NL80211_FLAG_NEED_RTNL,
9257 .cmd = NL80211_CMD_GET_INTERFACE,
9258 .doit = nl80211_get_interface,
9259 .dumpit = nl80211_dump_interface,
9260 .policy = nl80211_policy,
9261 /* can be retrieved by unprivileged users */
9262 .internal_flags = NL80211_FLAG_NEED_WDEV |
9263 NL80211_FLAG_NEED_RTNL,
9266 .cmd = NL80211_CMD_SET_INTERFACE,
9267 .doit = nl80211_set_interface,
9268 .policy = nl80211_policy,
9269 .flags = GENL_ADMIN_PERM,
9270 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9271 NL80211_FLAG_NEED_RTNL,
9274 .cmd = NL80211_CMD_NEW_INTERFACE,
9275 .doit = nl80211_new_interface,
9276 .policy = nl80211_policy,
9277 .flags = GENL_ADMIN_PERM,
9278 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9279 NL80211_FLAG_NEED_RTNL,
9282 .cmd = NL80211_CMD_DEL_INTERFACE,
9283 .doit = nl80211_del_interface,
9284 .policy = nl80211_policy,
9285 .flags = GENL_ADMIN_PERM,
9286 .internal_flags = NL80211_FLAG_NEED_WDEV |
9287 NL80211_FLAG_NEED_RTNL,
9290 .cmd = NL80211_CMD_GET_KEY,
9291 .doit = nl80211_get_key,
9292 .policy = nl80211_policy,
9293 .flags = GENL_ADMIN_PERM,
9294 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9295 NL80211_FLAG_NEED_RTNL,
9298 .cmd = NL80211_CMD_SET_KEY,
9299 .doit = nl80211_set_key,
9300 .policy = nl80211_policy,
9301 .flags = GENL_ADMIN_PERM,
9302 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9303 NL80211_FLAG_NEED_RTNL,
9306 .cmd = NL80211_CMD_NEW_KEY,
9307 .doit = nl80211_new_key,
9308 .policy = nl80211_policy,
9309 .flags = GENL_ADMIN_PERM,
9310 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9311 NL80211_FLAG_NEED_RTNL,
9314 .cmd = NL80211_CMD_DEL_KEY,
9315 .doit = nl80211_del_key,
9316 .policy = nl80211_policy,
9317 .flags = GENL_ADMIN_PERM,
9318 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9319 NL80211_FLAG_NEED_RTNL,
9322 .cmd = NL80211_CMD_SET_BEACON,
9323 .policy = nl80211_policy,
9324 .flags = GENL_ADMIN_PERM,
9325 .doit = nl80211_set_beacon,
9326 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9327 NL80211_FLAG_NEED_RTNL,
9330 .cmd = NL80211_CMD_START_AP,
9331 .policy = nl80211_policy,
9332 .flags = GENL_ADMIN_PERM,
9333 .doit = nl80211_start_ap,
9334 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9335 NL80211_FLAG_NEED_RTNL,
9338 .cmd = NL80211_CMD_STOP_AP,
9339 .policy = nl80211_policy,
9340 .flags = GENL_ADMIN_PERM,
9341 .doit = nl80211_stop_ap,
9342 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9343 NL80211_FLAG_NEED_RTNL,
9346 .cmd = NL80211_CMD_GET_STATION,
9347 .doit = nl80211_get_station,
9348 .dumpit = nl80211_dump_station,
9349 .policy = nl80211_policy,
9350 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9351 NL80211_FLAG_NEED_RTNL,
9354 .cmd = NL80211_CMD_SET_STATION,
9355 .doit = nl80211_set_station,
9356 .policy = nl80211_policy,
9357 .flags = GENL_ADMIN_PERM,
9358 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9359 NL80211_FLAG_NEED_RTNL,
9362 .cmd = NL80211_CMD_NEW_STATION,
9363 .doit = nl80211_new_station,
9364 .policy = nl80211_policy,
9365 .flags = GENL_ADMIN_PERM,
9366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9367 NL80211_FLAG_NEED_RTNL,
9370 .cmd = NL80211_CMD_DEL_STATION,
9371 .doit = nl80211_del_station,
9372 .policy = nl80211_policy,
9373 .flags = GENL_ADMIN_PERM,
9374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9375 NL80211_FLAG_NEED_RTNL,
9378 .cmd = NL80211_CMD_GET_MPATH,
9379 .doit = nl80211_get_mpath,
9380 .dumpit = nl80211_dump_mpath,
9381 .policy = nl80211_policy,
9382 .flags = GENL_ADMIN_PERM,
9383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9384 NL80211_FLAG_NEED_RTNL,
9387 .cmd = NL80211_CMD_SET_MPATH,
9388 .doit = nl80211_set_mpath,
9389 .policy = nl80211_policy,
9390 .flags = GENL_ADMIN_PERM,
9391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9392 NL80211_FLAG_NEED_RTNL,
9395 .cmd = NL80211_CMD_NEW_MPATH,
9396 .doit = nl80211_new_mpath,
9397 .policy = nl80211_policy,
9398 .flags = GENL_ADMIN_PERM,
9399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9400 NL80211_FLAG_NEED_RTNL,
9403 .cmd = NL80211_CMD_DEL_MPATH,
9404 .doit = nl80211_del_mpath,
9405 .policy = nl80211_policy,
9406 .flags = GENL_ADMIN_PERM,
9407 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9408 NL80211_FLAG_NEED_RTNL,
9411 .cmd = NL80211_CMD_SET_BSS,
9412 .doit = nl80211_set_bss,
9413 .policy = nl80211_policy,
9414 .flags = GENL_ADMIN_PERM,
9415 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9416 NL80211_FLAG_NEED_RTNL,
9419 .cmd = NL80211_CMD_GET_REG,
9420 .doit = nl80211_get_reg,
9421 .policy = nl80211_policy,
9422 .internal_flags = NL80211_FLAG_NEED_RTNL,
9423 /* can be retrieved by unprivileged users */
9426 .cmd = NL80211_CMD_SET_REG,
9427 .doit = nl80211_set_reg,
9428 .policy = nl80211_policy,
9429 .flags = GENL_ADMIN_PERM,
9430 .internal_flags = NL80211_FLAG_NEED_RTNL,
9433 .cmd = NL80211_CMD_REQ_SET_REG,
9434 .doit = nl80211_req_set_reg,
9435 .policy = nl80211_policy,
9436 .flags = GENL_ADMIN_PERM,
9439 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9440 .doit = nl80211_get_mesh_config,
9441 .policy = nl80211_policy,
9442 /* can be retrieved by unprivileged users */
9443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9444 NL80211_FLAG_NEED_RTNL,
9447 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9448 .doit = nl80211_update_mesh_config,
9449 .policy = nl80211_policy,
9450 .flags = GENL_ADMIN_PERM,
9451 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9452 NL80211_FLAG_NEED_RTNL,
9455 .cmd = NL80211_CMD_TRIGGER_SCAN,
9456 .doit = nl80211_trigger_scan,
9457 .policy = nl80211_policy,
9458 .flags = GENL_ADMIN_PERM,
9459 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9460 NL80211_FLAG_NEED_RTNL,
9463 .cmd = NL80211_CMD_GET_SCAN,
9464 .policy = nl80211_policy,
9465 .dumpit = nl80211_dump_scan,
9468 .cmd = NL80211_CMD_START_SCHED_SCAN,
9469 .doit = nl80211_start_sched_scan,
9470 .policy = nl80211_policy,
9471 .flags = GENL_ADMIN_PERM,
9472 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9473 NL80211_FLAG_NEED_RTNL,
9476 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9477 .doit = nl80211_stop_sched_scan,
9478 .policy = nl80211_policy,
9479 .flags = GENL_ADMIN_PERM,
9480 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9481 NL80211_FLAG_NEED_RTNL,
9484 .cmd = NL80211_CMD_AUTHENTICATE,
9485 .doit = nl80211_authenticate,
9486 .policy = nl80211_policy,
9487 .flags = GENL_ADMIN_PERM,
9488 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9489 NL80211_FLAG_NEED_RTNL,
9492 .cmd = NL80211_CMD_ASSOCIATE,
9493 .doit = nl80211_associate,
9494 .policy = nl80211_policy,
9495 .flags = GENL_ADMIN_PERM,
9496 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9497 NL80211_FLAG_NEED_RTNL,
9500 .cmd = NL80211_CMD_DEAUTHENTICATE,
9501 .doit = nl80211_deauthenticate,
9502 .policy = nl80211_policy,
9503 .flags = GENL_ADMIN_PERM,
9504 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9505 NL80211_FLAG_NEED_RTNL,
9508 .cmd = NL80211_CMD_DISASSOCIATE,
9509 .doit = nl80211_disassociate,
9510 .policy = nl80211_policy,
9511 .flags = GENL_ADMIN_PERM,
9512 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9513 NL80211_FLAG_NEED_RTNL,
9516 .cmd = NL80211_CMD_JOIN_IBSS,
9517 .doit = nl80211_join_ibss,
9518 .policy = nl80211_policy,
9519 .flags = GENL_ADMIN_PERM,
9520 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9521 NL80211_FLAG_NEED_RTNL,
9524 .cmd = NL80211_CMD_LEAVE_IBSS,
9525 .doit = nl80211_leave_ibss,
9526 .policy = nl80211_policy,
9527 .flags = GENL_ADMIN_PERM,
9528 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9529 NL80211_FLAG_NEED_RTNL,
9531 #ifdef CONFIG_NL80211_TESTMODE
9533 .cmd = NL80211_CMD_TESTMODE,
9534 .doit = nl80211_testmode_do,
9535 .dumpit = nl80211_testmode_dump,
9536 .policy = nl80211_policy,
9537 .flags = GENL_ADMIN_PERM,
9538 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9539 NL80211_FLAG_NEED_RTNL,
9543 .cmd = NL80211_CMD_CONNECT,
9544 .doit = nl80211_connect,
9545 .policy = nl80211_policy,
9546 .flags = GENL_ADMIN_PERM,
9547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9548 NL80211_FLAG_NEED_RTNL,
9551 .cmd = NL80211_CMD_DISCONNECT,
9552 .doit = nl80211_disconnect,
9553 .policy = nl80211_policy,
9554 .flags = GENL_ADMIN_PERM,
9555 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9556 NL80211_FLAG_NEED_RTNL,
9559 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9560 .doit = nl80211_wiphy_netns,
9561 .policy = nl80211_policy,
9562 .flags = GENL_ADMIN_PERM,
9563 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9564 NL80211_FLAG_NEED_RTNL,
9567 .cmd = NL80211_CMD_GET_SURVEY,
9568 .policy = nl80211_policy,
9569 .dumpit = nl80211_dump_survey,
9572 .cmd = NL80211_CMD_SET_PMKSA,
9573 .doit = nl80211_setdel_pmksa,
9574 .policy = nl80211_policy,
9575 .flags = GENL_ADMIN_PERM,
9576 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9577 NL80211_FLAG_NEED_RTNL,
9580 .cmd = NL80211_CMD_DEL_PMKSA,
9581 .doit = nl80211_setdel_pmksa,
9582 .policy = nl80211_policy,
9583 .flags = GENL_ADMIN_PERM,
9584 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9585 NL80211_FLAG_NEED_RTNL,
9588 .cmd = NL80211_CMD_FLUSH_PMKSA,
9589 .doit = nl80211_flush_pmksa,
9590 .policy = nl80211_policy,
9591 .flags = GENL_ADMIN_PERM,
9592 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9593 NL80211_FLAG_NEED_RTNL,
9596 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9597 .doit = nl80211_remain_on_channel,
9598 .policy = nl80211_policy,
9599 .flags = GENL_ADMIN_PERM,
9600 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9601 NL80211_FLAG_NEED_RTNL,
9604 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9605 .doit = nl80211_cancel_remain_on_channel,
9606 .policy = nl80211_policy,
9607 .flags = GENL_ADMIN_PERM,
9608 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9609 NL80211_FLAG_NEED_RTNL,
9612 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
9613 .doit = nl80211_set_tx_bitrate_mask,
9614 .policy = nl80211_policy,
9615 .flags = GENL_ADMIN_PERM,
9616 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9617 NL80211_FLAG_NEED_RTNL,
9620 .cmd = NL80211_CMD_REGISTER_FRAME,
9621 .doit = nl80211_register_mgmt,
9622 .policy = nl80211_policy,
9623 .flags = GENL_ADMIN_PERM,
9624 .internal_flags = NL80211_FLAG_NEED_WDEV |
9625 NL80211_FLAG_NEED_RTNL,
9628 .cmd = NL80211_CMD_FRAME,
9629 .doit = nl80211_tx_mgmt,
9630 .policy = nl80211_policy,
9631 .flags = GENL_ADMIN_PERM,
9632 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9633 NL80211_FLAG_NEED_RTNL,
9636 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
9637 .doit = nl80211_tx_mgmt_cancel_wait,
9638 .policy = nl80211_policy,
9639 .flags = GENL_ADMIN_PERM,
9640 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9641 NL80211_FLAG_NEED_RTNL,
9644 .cmd = NL80211_CMD_SET_POWER_SAVE,
9645 .doit = nl80211_set_power_save,
9646 .policy = nl80211_policy,
9647 .flags = GENL_ADMIN_PERM,
9648 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9649 NL80211_FLAG_NEED_RTNL,
9652 .cmd = NL80211_CMD_GET_POWER_SAVE,
9653 .doit = nl80211_get_power_save,
9654 .policy = nl80211_policy,
9655 /* can be retrieved by unprivileged users */
9656 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9657 NL80211_FLAG_NEED_RTNL,
9660 .cmd = NL80211_CMD_SET_CQM,
9661 .doit = nl80211_set_cqm,
9662 .policy = nl80211_policy,
9663 .flags = GENL_ADMIN_PERM,
9664 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9665 NL80211_FLAG_NEED_RTNL,
9668 .cmd = NL80211_CMD_SET_CHANNEL,
9669 .doit = nl80211_set_channel,
9670 .policy = nl80211_policy,
9671 .flags = GENL_ADMIN_PERM,
9672 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9673 NL80211_FLAG_NEED_RTNL,
9676 .cmd = NL80211_CMD_SET_WDS_PEER,
9677 .doit = nl80211_set_wds_peer,
9678 .policy = nl80211_policy,
9679 .flags = GENL_ADMIN_PERM,
9680 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9681 NL80211_FLAG_NEED_RTNL,
9684 .cmd = NL80211_CMD_JOIN_MESH,
9685 .doit = nl80211_join_mesh,
9686 .policy = nl80211_policy,
9687 .flags = GENL_ADMIN_PERM,
9688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9689 NL80211_FLAG_NEED_RTNL,
9692 .cmd = NL80211_CMD_LEAVE_MESH,
9693 .doit = nl80211_leave_mesh,
9694 .policy = nl80211_policy,
9695 .flags = GENL_ADMIN_PERM,
9696 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9697 NL80211_FLAG_NEED_RTNL,
9701 .cmd = NL80211_CMD_GET_WOWLAN,
9702 .doit = nl80211_get_wowlan,
9703 .policy = nl80211_policy,
9704 /* can be retrieved by unprivileged users */
9705 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9706 NL80211_FLAG_NEED_RTNL,
9709 .cmd = NL80211_CMD_SET_WOWLAN,
9710 .doit = nl80211_set_wowlan,
9711 .policy = nl80211_policy,
9712 .flags = GENL_ADMIN_PERM,
9713 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9714 NL80211_FLAG_NEED_RTNL,
9718 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
9719 .doit = nl80211_set_rekey_data,
9720 .policy = nl80211_policy,
9721 .flags = GENL_ADMIN_PERM,
9722 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9723 NL80211_FLAG_NEED_RTNL,
9726 .cmd = NL80211_CMD_TDLS_MGMT,
9727 .doit = nl80211_tdls_mgmt,
9728 .policy = nl80211_policy,
9729 .flags = GENL_ADMIN_PERM,
9730 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9731 NL80211_FLAG_NEED_RTNL,
9734 .cmd = NL80211_CMD_TDLS_OPER,
9735 .doit = nl80211_tdls_oper,
9736 .policy = nl80211_policy,
9737 .flags = GENL_ADMIN_PERM,
9738 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9739 NL80211_FLAG_NEED_RTNL,
9742 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
9743 .doit = nl80211_register_unexpected_frame,
9744 .policy = nl80211_policy,
9745 .flags = GENL_ADMIN_PERM,
9746 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9747 NL80211_FLAG_NEED_RTNL,
9750 .cmd = NL80211_CMD_PROBE_CLIENT,
9751 .doit = nl80211_probe_client,
9752 .policy = nl80211_policy,
9753 .flags = GENL_ADMIN_PERM,
9754 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9755 NL80211_FLAG_NEED_RTNL,
9758 .cmd = NL80211_CMD_REGISTER_BEACONS,
9759 .doit = nl80211_register_beacons,
9760 .policy = nl80211_policy,
9761 .flags = GENL_ADMIN_PERM,
9762 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9763 NL80211_FLAG_NEED_RTNL,
9766 .cmd = NL80211_CMD_SET_NOACK_MAP,
9767 .doit = nl80211_set_noack_map,
9768 .policy = nl80211_policy,
9769 .flags = GENL_ADMIN_PERM,
9770 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9771 NL80211_FLAG_NEED_RTNL,
9774 .cmd = NL80211_CMD_START_P2P_DEVICE,
9775 .doit = nl80211_start_p2p_device,
9776 .policy = nl80211_policy,
9777 .flags = GENL_ADMIN_PERM,
9778 .internal_flags = NL80211_FLAG_NEED_WDEV |
9779 NL80211_FLAG_NEED_RTNL,
9782 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
9783 .doit = nl80211_stop_p2p_device,
9784 .policy = nl80211_policy,
9785 .flags = GENL_ADMIN_PERM,
9786 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9787 NL80211_FLAG_NEED_RTNL,
9790 .cmd = NL80211_CMD_SET_MCAST_RATE,
9791 .doit = nl80211_set_mcast_rate,
9792 .policy = nl80211_policy,
9793 .flags = GENL_ADMIN_PERM,
9794 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9795 NL80211_FLAG_NEED_RTNL,
9798 .cmd = NL80211_CMD_SET_MAC_ACL,
9799 .doit = nl80211_set_mac_acl,
9800 .policy = nl80211_policy,
9801 .flags = GENL_ADMIN_PERM,
9802 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9803 NL80211_FLAG_NEED_RTNL,
9806 .cmd = NL80211_CMD_RADAR_DETECT,
9807 .doit = nl80211_start_radar_detection,
9808 .policy = nl80211_policy,
9809 .flags = GENL_ADMIN_PERM,
9810 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9811 NL80211_FLAG_NEED_RTNL,
9814 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
9815 .doit = nl80211_get_protocol_features,
9816 .policy = nl80211_policy,
9819 .cmd = NL80211_CMD_UPDATE_FT_IES,
9820 .doit = nl80211_update_ft_ies,
9821 .policy = nl80211_policy,
9822 .flags = GENL_ADMIN_PERM,
9823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9824 NL80211_FLAG_NEED_RTNL,
9827 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
9828 .doit = nl80211_crit_protocol_start,
9829 .policy = nl80211_policy,
9830 .flags = GENL_ADMIN_PERM,
9831 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9832 NL80211_FLAG_NEED_RTNL,
9835 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
9836 .doit = nl80211_crit_protocol_stop,
9837 .policy = nl80211_policy,
9838 .flags = GENL_ADMIN_PERM,
9839 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9840 NL80211_FLAG_NEED_RTNL,
9843 .cmd = NL80211_CMD_GET_COALESCE,
9844 .doit = nl80211_get_coalesce,
9845 .policy = nl80211_policy,
9846 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9847 NL80211_FLAG_NEED_RTNL,
9850 .cmd = NL80211_CMD_SET_COALESCE,
9851 .doit = nl80211_set_coalesce,
9852 .policy = nl80211_policy,
9853 .flags = GENL_ADMIN_PERM,
9854 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9855 NL80211_FLAG_NEED_RTNL,
9858 .cmd = NL80211_CMD_CHANNEL_SWITCH,
9859 .doit = nl80211_channel_switch,
9860 .policy = nl80211_policy,
9861 .flags = GENL_ADMIN_PERM,
9862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9863 NL80211_FLAG_NEED_RTNL,
9866 .cmd = NL80211_CMD_VENDOR,
9867 .doit = nl80211_vendor_cmd,
9868 .policy = nl80211_policy,
9869 .flags = GENL_ADMIN_PERM,
9870 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9871 NL80211_FLAG_NEED_RTNL,
9874 .cmd = NL80211_CMD_SET_QOS_MAP,
9875 .doit = nl80211_set_qos_map,
9876 .policy = nl80211_policy,
9877 .flags = GENL_ADMIN_PERM,
9878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9879 NL80211_FLAG_NEED_RTNL,
9883 /* notification functions */
9885 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
9887 struct sk_buff *msg;
9888 struct nl80211_dump_wiphy_state state = {};
9890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9894 if (nl80211_send_wiphy(rdev, msg, 0, 0, 0, &state) < 0) {
9899 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
9900 NL80211_MCGRP_CONFIG, GFP_KERNEL);
9903 static int nl80211_add_scan_req(struct sk_buff *msg,
9904 struct cfg80211_registered_device *rdev)
9906 struct cfg80211_scan_request *req = rdev->scan_req;
9907 struct nlattr *nest;
9913 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
9915 goto nla_put_failure;
9916 for (i = 0; i < req->n_ssids; i++) {
9917 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
9918 goto nla_put_failure;
9920 nla_nest_end(msg, nest);
9922 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9924 goto nla_put_failure;
9925 for (i = 0; i < req->n_channels; i++) {
9926 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
9927 goto nla_put_failure;
9929 nla_nest_end(msg, nest);
9932 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
9933 goto nla_put_failure;
9936 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
9937 goto nla_put_failure;
9944 static int nl80211_send_scan_msg(struct sk_buff *msg,
9945 struct cfg80211_registered_device *rdev,
9946 struct wireless_dev *wdev,
9947 u32 portid, u32 seq, int flags,
9952 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9956 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9957 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
9958 wdev->netdev->ifindex)) ||
9959 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
9960 goto nla_put_failure;
9962 /* ignore errors and send incomplete event anyway */
9963 nl80211_add_scan_req(msg, rdev);
9965 return genlmsg_end(msg, hdr);
9968 genlmsg_cancel(msg, hdr);
9973 nl80211_send_sched_scan_msg(struct sk_buff *msg,
9974 struct cfg80211_registered_device *rdev,
9975 struct net_device *netdev,
9976 u32 portid, u32 seq, int flags, u32 cmd)
9980 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
9984 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
9985 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
9986 goto nla_put_failure;
9988 return genlmsg_end(msg, hdr);
9991 genlmsg_cancel(msg, hdr);
9995 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
9996 struct wireless_dev *wdev)
9998 struct sk_buff *msg;
10000 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10004 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10005 NL80211_CMD_TRIGGER_SCAN) < 0) {
10010 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10011 NL80211_MCGRP_SCAN, GFP_KERNEL);
10014 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
10015 struct wireless_dev *wdev)
10017 struct sk_buff *msg;
10019 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10023 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10024 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10029 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10030 NL80211_MCGRP_SCAN, GFP_KERNEL);
10033 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
10034 struct wireless_dev *wdev)
10036 struct sk_buff *msg;
10038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10042 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10043 NL80211_CMD_SCAN_ABORTED) < 0) {
10048 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10049 NL80211_MCGRP_SCAN, GFP_KERNEL);
10052 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10053 struct net_device *netdev)
10055 struct sk_buff *msg;
10057 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10061 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10062 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10067 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10068 NL80211_MCGRP_SCAN, GFP_KERNEL);
10071 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10072 struct net_device *netdev, u32 cmd)
10074 struct sk_buff *msg;
10076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10080 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10085 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10086 NL80211_MCGRP_SCAN, GFP_KERNEL);
10090 * This can happen on global regulatory changes or device specific settings
10091 * based on custom world regulatory domains.
10093 void nl80211_send_reg_change_event(struct regulatory_request *request)
10095 struct sk_buff *msg;
10098 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10102 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10108 /* Userspace can always count this one always being set */
10109 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10110 goto nla_put_failure;
10112 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10113 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10114 NL80211_REGDOM_TYPE_WORLD))
10115 goto nla_put_failure;
10116 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10117 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10118 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10119 goto nla_put_failure;
10120 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10121 request->intersect) {
10122 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10123 NL80211_REGDOM_TYPE_INTERSECTION))
10124 goto nla_put_failure;
10126 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10127 NL80211_REGDOM_TYPE_COUNTRY) ||
10128 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10130 goto nla_put_failure;
10133 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10134 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10135 goto nla_put_failure;
10137 genlmsg_end(msg, hdr);
10140 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10141 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10147 genlmsg_cancel(msg, hdr);
10151 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10152 struct net_device *netdev,
10153 const u8 *buf, size_t len,
10154 enum nl80211_commands cmd, gfp_t gfp)
10156 struct sk_buff *msg;
10159 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10163 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10169 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10170 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10171 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10172 goto nla_put_failure;
10174 genlmsg_end(msg, hdr);
10176 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10177 NL80211_MCGRP_MLME, gfp);
10181 genlmsg_cancel(msg, hdr);
10185 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10186 struct net_device *netdev, const u8 *buf,
10187 size_t len, gfp_t gfp)
10189 nl80211_send_mlme_event(rdev, netdev, buf, len,
10190 NL80211_CMD_AUTHENTICATE, gfp);
10193 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10194 struct net_device *netdev, const u8 *buf,
10195 size_t len, gfp_t gfp)
10197 nl80211_send_mlme_event(rdev, netdev, buf, len,
10198 NL80211_CMD_ASSOCIATE, gfp);
10201 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10202 struct net_device *netdev, const u8 *buf,
10203 size_t len, gfp_t gfp)
10205 nl80211_send_mlme_event(rdev, netdev, buf, len,
10206 NL80211_CMD_DEAUTHENTICATE, gfp);
10209 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10210 struct net_device *netdev, const u8 *buf,
10211 size_t len, gfp_t gfp)
10213 nl80211_send_mlme_event(rdev, netdev, buf, len,
10214 NL80211_CMD_DISASSOCIATE, gfp);
10217 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10220 struct wireless_dev *wdev = dev->ieee80211_ptr;
10221 struct wiphy *wiphy = wdev->wiphy;
10222 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10223 const struct ieee80211_mgmt *mgmt = (void *)buf;
10226 if (WARN_ON(len < 2))
10229 if (ieee80211_is_deauth(mgmt->frame_control))
10230 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10232 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10234 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10235 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC);
10237 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10239 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10240 struct net_device *netdev, int cmd,
10241 const u8 *addr, gfp_t gfp)
10243 struct sk_buff *msg;
10246 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10250 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10256 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10257 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10258 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10259 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10260 goto nla_put_failure;
10262 genlmsg_end(msg, hdr);
10264 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10265 NL80211_MCGRP_MLME, gfp);
10269 genlmsg_cancel(msg, hdr);
10273 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10274 struct net_device *netdev, const u8 *addr,
10277 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10281 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10282 struct net_device *netdev, const u8 *addr,
10285 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10289 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10290 struct net_device *netdev, const u8 *bssid,
10291 const u8 *req_ie, size_t req_ie_len,
10292 const u8 *resp_ie, size_t resp_ie_len,
10293 u16 status, gfp_t gfp)
10295 struct sk_buff *msg;
10298 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10302 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10308 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10309 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10310 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10311 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10313 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10315 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10316 goto nla_put_failure;
10318 genlmsg_end(msg, hdr);
10320 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10321 NL80211_MCGRP_MLME, gfp);
10325 genlmsg_cancel(msg, hdr);
10330 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10331 struct net_device *netdev, const u8 *bssid,
10332 const u8 *req_ie, size_t req_ie_len,
10333 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10335 struct sk_buff *msg;
10338 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10342 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10349 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10350 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10352 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10354 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10355 goto nla_put_failure;
10357 genlmsg_end(msg, hdr);
10359 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10360 NL80211_MCGRP_MLME, gfp);
10364 genlmsg_cancel(msg, hdr);
10369 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10370 struct net_device *netdev, u16 reason,
10371 const u8 *ie, size_t ie_len, bool from_ap)
10373 struct sk_buff *msg;
10376 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10380 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10387 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10388 (from_ap && reason &&
10389 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10391 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10392 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10393 goto nla_put_failure;
10395 genlmsg_end(msg, hdr);
10397 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10398 NL80211_MCGRP_MLME, GFP_KERNEL);
10402 genlmsg_cancel(msg, hdr);
10407 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10408 struct net_device *netdev, const u8 *bssid,
10411 struct sk_buff *msg;
10414 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10418 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10424 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10425 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10426 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10427 goto nla_put_failure;
10429 genlmsg_end(msg, hdr);
10431 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10432 NL80211_MCGRP_MLME, gfp);
10436 genlmsg_cancel(msg, hdr);
10440 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10441 const u8* ie, u8 ie_len, gfp_t gfp)
10443 struct wireless_dev *wdev = dev->ieee80211_ptr;
10444 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10445 struct sk_buff *msg;
10448 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10451 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10453 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10457 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10463 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10464 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10465 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10467 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10468 goto nla_put_failure;
10470 genlmsg_end(msg, hdr);
10472 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10473 NL80211_MCGRP_MLME, gfp);
10477 genlmsg_cancel(msg, hdr);
10480 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10482 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10483 struct net_device *netdev, const u8 *addr,
10484 enum nl80211_key_type key_type, int key_id,
10485 const u8 *tsc, gfp_t gfp)
10487 struct sk_buff *msg;
10490 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10494 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10500 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10501 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10502 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10503 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10505 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10506 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10507 goto nla_put_failure;
10509 genlmsg_end(msg, hdr);
10511 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10512 NL80211_MCGRP_MLME, gfp);
10516 genlmsg_cancel(msg, hdr);
10520 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10521 struct ieee80211_channel *channel_before,
10522 struct ieee80211_channel *channel_after)
10524 struct sk_buff *msg;
10526 struct nlattr *nl_freq;
10528 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10532 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10539 * Since we are applying the beacon hint to a wiphy we know its
10540 * wiphy_idx is valid
10542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10543 goto nla_put_failure;
10546 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10548 goto nla_put_failure;
10549 if (nl80211_msg_put_channel(msg, channel_before, false))
10550 goto nla_put_failure;
10551 nla_nest_end(msg, nl_freq);
10554 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10556 goto nla_put_failure;
10557 if (nl80211_msg_put_channel(msg, channel_after, false))
10558 goto nla_put_failure;
10559 nla_nest_end(msg, nl_freq);
10561 genlmsg_end(msg, hdr);
10564 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10565 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10571 genlmsg_cancel(msg, hdr);
10575 static void nl80211_send_remain_on_chan_event(
10576 int cmd, struct cfg80211_registered_device *rdev,
10577 struct wireless_dev *wdev, u64 cookie,
10578 struct ieee80211_channel *chan,
10579 unsigned int duration, gfp_t gfp)
10581 struct sk_buff *msg;
10584 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10588 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10594 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10595 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10596 wdev->netdev->ifindex)) ||
10597 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10598 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
10599 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
10600 NL80211_CHAN_NO_HT) ||
10601 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
10602 goto nla_put_failure;
10604 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
10605 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
10606 goto nla_put_failure;
10608 genlmsg_end(msg, hdr);
10610 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10611 NL80211_MCGRP_MLME, gfp);
10615 genlmsg_cancel(msg, hdr);
10619 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
10620 struct ieee80211_channel *chan,
10621 unsigned int duration, gfp_t gfp)
10623 struct wiphy *wiphy = wdev->wiphy;
10624 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10626 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
10627 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
10628 rdev, wdev, cookie, chan,
10631 EXPORT_SYMBOL(cfg80211_ready_on_channel);
10633 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
10634 struct ieee80211_channel *chan,
10637 struct wiphy *wiphy = wdev->wiphy;
10638 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10640 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
10641 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10642 rdev, wdev, cookie, chan, 0, gfp);
10644 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
10646 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
10647 struct station_info *sinfo, gfp_t gfp)
10649 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10650 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10651 struct sk_buff *msg;
10653 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
10655 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10659 if (nl80211_send_station(msg, 0, 0, 0,
10660 rdev, dev, mac_addr, sinfo) < 0) {
10665 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10666 NL80211_MCGRP_MLME, gfp);
10668 EXPORT_SYMBOL(cfg80211_new_sta);
10670 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
10672 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10673 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10674 struct sk_buff *msg;
10677 trace_cfg80211_del_sta(dev, mac_addr);
10679 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10683 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
10689 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10690 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
10691 goto nla_put_failure;
10693 genlmsg_end(msg, hdr);
10695 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10696 NL80211_MCGRP_MLME, gfp);
10700 genlmsg_cancel(msg, hdr);
10703 EXPORT_SYMBOL(cfg80211_del_sta);
10705 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
10706 enum nl80211_connect_failed_reason reason,
10709 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
10710 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10711 struct sk_buff *msg;
10714 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
10718 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
10724 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10725 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
10726 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
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);
10739 EXPORT_SYMBOL(cfg80211_conn_failed);
10741 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
10742 const u8 *addr, gfp_t gfp)
10744 struct wireless_dev *wdev = dev->ieee80211_ptr;
10745 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
10746 struct sk_buff *msg;
10748 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
10753 msg = nlmsg_new(100, gfp);
10757 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10763 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10764 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10765 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10766 goto nla_put_failure;
10768 genlmsg_end(msg, hdr);
10769 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10773 genlmsg_cancel(msg, hdr);
10778 bool cfg80211_rx_spurious_frame(struct net_device *dev,
10779 const u8 *addr, gfp_t gfp)
10781 struct wireless_dev *wdev = dev->ieee80211_ptr;
10784 trace_cfg80211_rx_spurious_frame(dev, addr);
10786 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10787 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
10788 trace_cfg80211_return_bool(false);
10791 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
10793 trace_cfg80211_return_bool(ret);
10796 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
10798 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
10799 const u8 *addr, gfp_t gfp)
10801 struct wireless_dev *wdev = dev->ieee80211_ptr;
10804 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
10806 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
10807 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
10808 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
10809 trace_cfg80211_return_bool(false);
10812 ret = __nl80211_unexpected_frame(dev,
10813 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
10815 trace_cfg80211_return_bool(ret);
10818 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
10820 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
10821 struct wireless_dev *wdev, u32 nlportid,
10822 int freq, int sig_dbm,
10823 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
10825 struct net_device *netdev = wdev->netdev;
10826 struct sk_buff *msg;
10829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10833 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
10839 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10840 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10841 netdev->ifindex)) ||
10842 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10843 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
10845 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
10846 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10848 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
10849 goto nla_put_failure;
10851 genlmsg_end(msg, hdr);
10853 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
10856 genlmsg_cancel(msg, hdr);
10861 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
10862 const u8 *buf, size_t len, bool ack, gfp_t gfp)
10864 struct wiphy *wiphy = wdev->wiphy;
10865 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10866 struct net_device *netdev = wdev->netdev;
10867 struct sk_buff *msg;
10870 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
10872 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10876 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
10882 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10883 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10884 netdev->ifindex)) ||
10885 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
10886 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
10887 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
10888 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
10889 goto nla_put_failure;
10891 genlmsg_end(msg, hdr);
10893 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10894 NL80211_MCGRP_MLME, gfp);
10898 genlmsg_cancel(msg, hdr);
10901 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
10903 void cfg80211_cqm_rssi_notify(struct net_device *dev,
10904 enum nl80211_cqm_rssi_threshold_event rssi_event,
10907 struct wireless_dev *wdev = dev->ieee80211_ptr;
10908 struct wiphy *wiphy = wdev->wiphy;
10909 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
10910 struct sk_buff *msg;
10911 struct nlattr *pinfoattr;
10914 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
10916 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10920 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
10926 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10927 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
10928 goto nla_put_failure;
10930 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
10932 goto nla_put_failure;
10934 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
10936 goto nla_put_failure;
10938 nla_nest_end(msg, pinfoattr);
10940 genlmsg_end(msg, hdr);
10942 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10943 NL80211_MCGRP_MLME, gfp);
10947 genlmsg_cancel(msg, hdr);
10950 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
10952 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
10953 struct net_device *netdev, const u8 *bssid,
10954 const u8 *replay_ctr, gfp_t gfp)
10956 struct sk_buff *msg;
10957 struct nlattr *rekey_attr;
10960 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10964 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
10970 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10971 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10972 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10973 goto nla_put_failure;
10975 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
10977 goto nla_put_failure;
10979 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
10980 NL80211_REPLAY_CTR_LEN, replay_ctr))
10981 goto nla_put_failure;
10983 nla_nest_end(msg, rekey_attr);
10985 genlmsg_end(msg, hdr);
10987 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10988 NL80211_MCGRP_MLME, gfp);
10992 genlmsg_cancel(msg, hdr);
10996 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
10997 const u8 *replay_ctr, gfp_t gfp)
10999 struct wireless_dev *wdev = dev->ieee80211_ptr;
11000 struct wiphy *wiphy = wdev->wiphy;
11001 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11003 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11004 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11006 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11009 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11010 struct net_device *netdev, int index,
11011 const u8 *bssid, bool preauth, gfp_t gfp)
11013 struct sk_buff *msg;
11014 struct nlattr *attr;
11017 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11021 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11027 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11028 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11029 goto nla_put_failure;
11031 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11033 goto nla_put_failure;
11035 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11036 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11038 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11039 goto nla_put_failure;
11041 nla_nest_end(msg, attr);
11043 genlmsg_end(msg, hdr);
11045 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11046 NL80211_MCGRP_MLME, gfp);
11050 genlmsg_cancel(msg, hdr);
11054 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11055 const u8 *bssid, bool preauth, gfp_t gfp)
11057 struct wireless_dev *wdev = dev->ieee80211_ptr;
11058 struct wiphy *wiphy = wdev->wiphy;
11059 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11061 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11062 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11064 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11066 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11067 struct net_device *netdev,
11068 struct cfg80211_chan_def *chandef,
11071 struct sk_buff *msg;
11074 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11078 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11084 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11085 goto nla_put_failure;
11087 if (nl80211_send_chandef(msg, chandef))
11088 goto nla_put_failure;
11090 genlmsg_end(msg, hdr);
11092 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11093 NL80211_MCGRP_MLME, gfp);
11097 genlmsg_cancel(msg, hdr);
11101 void cfg80211_ch_switch_notify(struct net_device *dev,
11102 struct cfg80211_chan_def *chandef)
11104 struct wireless_dev *wdev = dev->ieee80211_ptr;
11105 struct wiphy *wiphy = wdev->wiphy;
11106 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11108 ASSERT_WDEV_LOCK(wdev);
11110 trace_cfg80211_ch_switch_notify(dev, chandef);
11112 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11113 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11114 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11115 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11118 wdev->channel = chandef->chan;
11119 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
11121 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11123 void cfg80211_cqm_txe_notify(struct net_device *dev,
11124 const u8 *peer, u32 num_packets,
11125 u32 rate, u32 intvl, gfp_t gfp)
11127 struct wireless_dev *wdev = dev->ieee80211_ptr;
11128 struct wiphy *wiphy = wdev->wiphy;
11129 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11130 struct sk_buff *msg;
11131 struct nlattr *pinfoattr;
11134 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11138 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11144 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11145 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11146 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11147 goto nla_put_failure;
11149 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11151 goto nla_put_failure;
11153 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11154 goto nla_put_failure;
11156 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11157 goto nla_put_failure;
11159 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11160 goto nla_put_failure;
11162 nla_nest_end(msg, pinfoattr);
11164 genlmsg_end(msg, hdr);
11166 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11167 NL80211_MCGRP_MLME, gfp);
11171 genlmsg_cancel(msg, hdr);
11174 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11177 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11178 const struct cfg80211_chan_def *chandef,
11179 enum nl80211_radar_event event,
11180 struct net_device *netdev, gfp_t gfp)
11182 struct sk_buff *msg;
11185 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11189 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11195 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11196 goto nla_put_failure;
11198 /* NOP and radar events don't need a netdev parameter */
11200 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11202 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11203 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11204 goto nla_put_failure;
11207 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11208 goto nla_put_failure;
11210 if (nl80211_send_chandef(msg, chandef))
11211 goto nla_put_failure;
11213 genlmsg_end(msg, hdr);
11215 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11216 NL80211_MCGRP_MLME, gfp);
11220 genlmsg_cancel(msg, hdr);
11224 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11225 const u8 *peer, u32 num_packets, gfp_t gfp)
11227 struct wireless_dev *wdev = dev->ieee80211_ptr;
11228 struct wiphy *wiphy = wdev->wiphy;
11229 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11230 struct sk_buff *msg;
11231 struct nlattr *pinfoattr;
11234 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11236 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11240 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11246 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11247 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11248 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11249 goto nla_put_failure;
11251 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11253 goto nla_put_failure;
11255 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11256 goto nla_put_failure;
11258 nla_nest_end(msg, pinfoattr);
11260 genlmsg_end(msg, hdr);
11262 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11263 NL80211_MCGRP_MLME, gfp);
11267 genlmsg_cancel(msg, hdr);
11270 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11272 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11273 u64 cookie, bool acked, gfp_t gfp)
11275 struct wireless_dev *wdev = dev->ieee80211_ptr;
11276 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11277 struct sk_buff *msg;
11280 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11282 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11287 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11293 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11294 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11295 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11296 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11297 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11298 goto nla_put_failure;
11300 genlmsg_end(msg, hdr);
11302 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11303 NL80211_MCGRP_MLME, gfp);
11307 genlmsg_cancel(msg, hdr);
11310 EXPORT_SYMBOL(cfg80211_probe_status);
11312 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11313 const u8 *frame, size_t len,
11314 int freq, int sig_dbm)
11316 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11317 struct sk_buff *msg;
11319 struct cfg80211_beacon_registration *reg;
11321 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11323 spin_lock_bh(&rdev->beacon_registrations_lock);
11324 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11325 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11327 spin_unlock_bh(&rdev->beacon_registrations_lock);
11331 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11333 goto nla_put_failure;
11335 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11337 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11339 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11340 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11341 goto nla_put_failure;
11343 genlmsg_end(msg, hdr);
11345 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11347 spin_unlock_bh(&rdev->beacon_registrations_lock);
11351 spin_unlock_bh(&rdev->beacon_registrations_lock);
11353 genlmsg_cancel(msg, hdr);
11356 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11359 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11360 struct cfg80211_wowlan_wakeup *wakeup,
11363 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11364 struct sk_buff *msg;
11368 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11371 size += wakeup->packet_present_len;
11373 msg = nlmsg_new(size, gfp);
11377 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11381 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11382 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11385 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11386 wdev->netdev->ifindex))
11390 struct nlattr *reasons;
11392 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11396 if (wakeup->disconnect &&
11397 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11399 if (wakeup->magic_pkt &&
11400 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11402 if (wakeup->gtk_rekey_failure &&
11403 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11405 if (wakeup->eap_identity_req &&
11406 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11408 if (wakeup->four_way_handshake &&
11409 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11411 if (wakeup->rfkill_release &&
11412 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11415 if (wakeup->pattern_idx >= 0 &&
11416 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11417 wakeup->pattern_idx))
11420 if (wakeup->tcp_match &&
11421 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11424 if (wakeup->tcp_connlost &&
11425 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11428 if (wakeup->tcp_nomoretokens &&
11430 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11433 if (wakeup->packet) {
11434 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11435 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11437 if (!wakeup->packet_80211) {
11439 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11441 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11444 if (wakeup->packet_len &&
11445 nla_put_u32(msg, len_attr, wakeup->packet_len))
11448 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11453 nla_nest_end(msg, reasons);
11456 genlmsg_end(msg, hdr);
11458 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11459 NL80211_MCGRP_MLME, gfp);
11465 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11468 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11469 enum nl80211_tdls_operation oper,
11470 u16 reason_code, gfp_t gfp)
11472 struct wireless_dev *wdev = dev->ieee80211_ptr;
11473 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
11474 struct sk_buff *msg;
11477 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11480 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11484 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11490 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11491 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11492 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11493 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11494 (reason_code > 0 &&
11495 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11496 goto nla_put_failure;
11498 genlmsg_end(msg, hdr);
11500 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11501 NL80211_MCGRP_MLME, gfp);
11505 genlmsg_cancel(msg, hdr);
11508 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11510 static int nl80211_netlink_notify(struct notifier_block * nb,
11511 unsigned long state,
11514 struct netlink_notify *notify = _notify;
11515 struct cfg80211_registered_device *rdev;
11516 struct wireless_dev *wdev;
11517 struct cfg80211_beacon_registration *reg, *tmp;
11519 if (state != NETLINK_URELEASE)
11520 return NOTIFY_DONE;
11524 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11525 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list)
11526 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11528 spin_lock_bh(&rdev->beacon_registrations_lock);
11529 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11531 if (reg->nlportid == notify->portid) {
11532 list_del(®->list);
11537 spin_unlock_bh(&rdev->beacon_registrations_lock);
11542 return NOTIFY_DONE;
11545 static struct notifier_block nl80211_netlink_notifier = {
11546 .notifier_call = nl80211_netlink_notify,
11549 void cfg80211_ft_event(struct net_device *netdev,
11550 struct cfg80211_ft_event_params *ft_event)
11552 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11553 struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
11554 struct sk_buff *msg;
11557 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11559 if (!ft_event->target_ap)
11562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11566 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
11570 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11571 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11572 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
11575 if (ft_event->ies &&
11576 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
11578 if (ft_event->ric_ies &&
11579 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
11580 ft_event->ric_ies))
11583 genlmsg_end(msg, hdr);
11585 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11586 NL80211_MCGRP_MLME, GFP_KERNEL);
11591 EXPORT_SYMBOL(cfg80211_ft_event);
11593 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
11595 struct cfg80211_registered_device *rdev;
11596 struct sk_buff *msg;
11600 rdev = wiphy_to_dev(wdev->wiphy);
11601 if (!rdev->crit_proto_nlportid)
11604 nlportid = rdev->crit_proto_nlportid;
11605 rdev->crit_proto_nlportid = 0;
11607 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11611 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
11613 goto nla_put_failure;
11615 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11616 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11617 goto nla_put_failure;
11619 genlmsg_end(msg, hdr);
11621 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11626 genlmsg_cancel(msg, hdr);
11630 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
11632 /* initialisation/exit functions */
11634 int nl80211_init(void)
11638 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
11643 err = netlink_register_notifier(&nl80211_netlink_notifier);
11649 genl_unregister_family(&nl80211_fam);
11653 void nl80211_exit(void)
11655 netlink_unregister_notifier(&nl80211_netlink_notifier);
11656 genl_unregister_family(&nl80211_fam);