2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
9 #include <linux/module.h>
10 #include <linux/err.h>
11 #include <linux/slab.h>
12 #include <linux/list.h>
13 #include <linux/if_ether.h>
14 #include <linux/ieee80211.h>
15 #include <linux/nl80211.h>
16 #include <linux/rtnetlink.h>
17 #include <linux/netlink.h>
18 #include <linux/etherdevice.h>
19 #include <net/net_namespace.h>
20 #include <net/genetlink.h>
21 #include <net/cfg80211.h>
23 #include <net/inet_connection_sock.h>
29 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
34 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
37 struct genl_info *info);
39 /* the netlink family */
40 static struct genl_family nl80211_fam = {
41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
45 .maxattr = NL80211_ATTR_MAX,
47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
51 /* multicast groups */
52 enum nl80211_multicast_groups {
55 NL80211_MCGRP_REGULATORY,
58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
61 static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = "config", },
63 [NL80211_MCGRP_SCAN] = { .name = "scan", },
64 [NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
65 [NL80211_MCGRP_MLME] = { .name = "mlme", },
66 [NL80211_MCGRP_VENDOR] = { .name = "vendor", },
67 #ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
72 /* returns ERR_PTR values */
73 static struct wireless_dev *
74 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
99 if (wiphy_net(&rdev->wiphy) != netns)
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
123 return ERR_PTR(-ENODEV);
126 static struct cfg80211_registered_device *
127 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
134 if (!attrs[NL80211_ATTR_WIPHY] &&
135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
137 return ERR_PTR(-EINVAL);
139 if (attrs[NL80211_ATTR_WIPHY])
140 rdev = cfg80211_rdev_by_wiphy_idx(
141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 /* make sure wdev exists */
151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
169 netdev = __dev_get_by_index(netns, ifindex);
171 if (netdev->ieee80211_ptr)
173 netdev->ieee80211_ptr->wiphy);
177 /* not wireless device -- return error */
179 return ERR_PTR(-EINVAL);
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
190 return ERR_PTR(-ENODEV);
192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
205 static struct cfg80211_registered_device *
206 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
211 /* policy for the attributes */
212 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
262 .len = IEEE80211_MAX_MESH_ID_LEN },
263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
391 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
401 /* policy for the key attributes */
402 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
403 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
404 [NL80211_KEY_IDX] = { .type = NLA_U8 },
405 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
406 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
407 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
408 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
409 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
410 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
413 /* policy for the key default flags */
414 static const struct nla_policy
415 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
416 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
417 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
420 /* policy for WoWLAN attributes */
421 static const struct nla_policy
422 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
423 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
426 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
427 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
432 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
435 static const struct nla_policy
436 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
437 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
438 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
439 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
440 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
441 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
442 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
443 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
444 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
446 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
447 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
449 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
450 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
451 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
454 /* policy for coalesce rule attributes */
455 static const struct nla_policy
456 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
457 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
458 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
459 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
462 /* policy for GTK rekey offload attributes */
463 static const struct nla_policy
464 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
465 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
466 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
467 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
470 static const struct nla_policy
471 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
472 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
473 .len = IEEE80211_MAX_SSID_LEN },
474 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
477 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
478 struct netlink_callback *cb,
479 struct cfg80211_registered_device **rdev,
480 struct wireless_dev **wdev)
487 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
488 nl80211_fam.attrbuf, nl80211_fam.maxattr,
493 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
494 nl80211_fam.attrbuf);
496 err = PTR_ERR(*wdev);
499 *rdev = wiphy_to_rdev((*wdev)->wiphy);
500 /* 0 is the first index - add 1 to parse only once */
501 cb->args[0] = (*rdev)->wiphy_idx + 1;
502 cb->args[1] = (*wdev)->identifier;
504 /* subtract the 1 again here */
505 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
506 struct wireless_dev *tmp;
512 *rdev = wiphy_to_rdev(wiphy);
515 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
516 if (tmp->identifier == cb->args[1]) {
534 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
540 static bool is_valid_ie_attr(const struct nlattr *attr)
548 pos = nla_data(attr);
569 /* message building helper */
570 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
573 /* since there is no private header just add the generic one */
574 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
577 static int nl80211_msg_put_channel(struct sk_buff *msg,
578 struct ieee80211_channel *chan,
581 /* Some channels must be completely excluded from the
582 * list to protect old user-space tools from breaking
584 if (!large && chan->flags &
585 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
588 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
590 goto nla_put_failure;
592 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
593 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
594 goto nla_put_failure;
595 if (chan->flags & IEEE80211_CHAN_NO_IR) {
596 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
597 goto nla_put_failure;
598 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
599 goto nla_put_failure;
601 if (chan->flags & IEEE80211_CHAN_RADAR) {
602 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
603 goto nla_put_failure;
607 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
609 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
611 goto nla_put_failure;
612 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
614 goto nla_put_failure;
616 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
618 goto nla_put_failure;
623 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
624 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
625 goto nla_put_failure;
626 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
627 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
628 goto nla_put_failure;
629 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
630 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
631 goto nla_put_failure;
632 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
633 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
634 goto nla_put_failure;
635 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
637 goto nla_put_failure;
638 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
639 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
640 goto nla_put_failure;
641 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
643 goto nla_put_failure;
644 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
645 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
646 goto nla_put_failure;
649 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
650 DBM_TO_MBM(chan->max_power)))
651 goto nla_put_failure;
659 /* netlink command implementations */
666 bool def_uni, def_multi;
669 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
671 struct nlattr *tb[NL80211_KEY_MAX + 1];
672 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
677 k->def = !!tb[NL80211_KEY_DEFAULT];
678 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
687 if (tb[NL80211_KEY_IDX])
688 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
690 if (tb[NL80211_KEY_DATA]) {
691 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
692 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
695 if (tb[NL80211_KEY_SEQ]) {
696 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
697 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
700 if (tb[NL80211_KEY_CIPHER])
701 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
703 if (tb[NL80211_KEY_TYPE]) {
704 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
705 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
709 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
710 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
711 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
712 tb[NL80211_KEY_DEFAULT_TYPES],
713 nl80211_key_default_policy);
717 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
718 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
724 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
726 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
727 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
728 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
731 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
732 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
733 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
736 if (info->attrs[NL80211_ATTR_KEY_IDX])
737 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
739 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
740 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
742 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
743 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
752 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
753 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
754 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
758 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
759 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
760 int err = nla_parse_nested(
761 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
762 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
763 nl80211_key_default_policy);
767 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
768 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
774 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
778 memset(k, 0, sizeof(*k));
782 if (info->attrs[NL80211_ATTR_KEY])
783 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
785 err = nl80211_parse_key_old(info, k);
790 if (k->def && k->defmgmt)
794 if (k->def_uni || !k->def_multi)
800 if (k->idx < 4 || k->idx > 5)
803 if (k->idx < 0 || k->idx > 3)
806 if (k->idx < 0 || k->idx > 5)
814 static struct cfg80211_cached_keys *
815 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
816 struct nlattr *keys, bool *no_ht)
818 struct key_parse parse;
820 struct cfg80211_cached_keys *result;
821 int rem, err, def = 0;
823 result = kzalloc(sizeof(*result), GFP_KERNEL);
825 return ERR_PTR(-ENOMEM);
828 result->defmgmt = -1;
830 nla_for_each_nested(key, keys, rem) {
831 memset(&parse, 0, sizeof(parse));
834 err = nl80211_parse_key_new(key, &parse);
840 if (parse.idx < 0 || parse.idx > 4)
846 result->def = parse.idx;
847 if (!parse.def_uni || !parse.def_multi)
849 } else if (parse.defmgmt)
851 err = cfg80211_validate_key_settings(rdev, &parse.p,
852 parse.idx, false, NULL);
855 result->params[parse.idx].cipher = parse.p.cipher;
856 result->params[parse.idx].key_len = parse.p.key_len;
857 result->params[parse.idx].key = result->data[parse.idx];
858 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
860 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
861 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
873 static int nl80211_key_allowed(struct wireless_dev *wdev)
875 ASSERT_WDEV_LOCK(wdev);
877 switch (wdev->iftype) {
878 case NL80211_IFTYPE_AP:
879 case NL80211_IFTYPE_AP_VLAN:
880 case NL80211_IFTYPE_P2P_GO:
881 case NL80211_IFTYPE_MESH_POINT:
883 case NL80211_IFTYPE_ADHOC:
884 case NL80211_IFTYPE_STATION:
885 case NL80211_IFTYPE_P2P_CLIENT:
886 if (!wdev->current_bss)
889 case NL80211_IFTYPE_UNSPECIFIED:
890 case NL80211_IFTYPE_OCB:
891 case NL80211_IFTYPE_MONITOR:
892 case NL80211_IFTYPE_P2P_DEVICE:
893 case NL80211_IFTYPE_WDS:
894 case NUM_NL80211_IFTYPES:
901 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
904 struct ieee80211_channel *chan;
908 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
909 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
914 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
916 struct nlattr *nl_modes = nla_nest_start(msg, attr);
920 goto nla_put_failure;
924 if ((ifmodes & 1) && nla_put_flag(msg, i))
925 goto nla_put_failure;
930 nla_nest_end(msg, nl_modes);
937 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
941 struct nlattr *nl_combis;
944 nl_combis = nla_nest_start(msg,
945 NL80211_ATTR_INTERFACE_COMBINATIONS);
947 goto nla_put_failure;
949 for (i = 0; i < wiphy->n_iface_combinations; i++) {
950 const struct ieee80211_iface_combination *c;
951 struct nlattr *nl_combi, *nl_limits;
953 c = &wiphy->iface_combinations[i];
955 nl_combi = nla_nest_start(msg, i + 1);
957 goto nla_put_failure;
959 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
961 goto nla_put_failure;
963 for (j = 0; j < c->n_limits; j++) {
964 struct nlattr *nl_limit;
966 nl_limit = nla_nest_start(msg, j + 1);
968 goto nla_put_failure;
969 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
971 goto nla_put_failure;
972 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
974 goto nla_put_failure;
975 nla_nest_end(msg, nl_limit);
978 nla_nest_end(msg, nl_limits);
980 if (c->beacon_int_infra_match &&
981 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
982 goto nla_put_failure;
983 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
984 c->num_different_channels) ||
985 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
987 goto nla_put_failure;
989 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
990 c->radar_detect_widths) ||
991 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
992 c->radar_detect_regions)))
993 goto nla_put_failure;
995 nla_nest_end(msg, nl_combi);
998 nla_nest_end(msg, nl_combis);
1006 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1007 struct sk_buff *msg)
1009 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1010 struct nlattr *nl_tcp;
1015 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1019 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1020 tcp->data_payload_max))
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1024 tcp->data_payload_max))
1027 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1030 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1031 sizeof(*tcp->tok), tcp->tok))
1034 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1035 tcp->data_interval_max))
1038 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1039 tcp->wake_payload_max))
1042 nla_nest_end(msg, nl_tcp);
1046 static int nl80211_send_wowlan(struct sk_buff *msg,
1047 struct cfg80211_registered_device *rdev,
1050 struct nlattr *nl_wowlan;
1052 if (!rdev->wiphy.wowlan)
1055 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1059 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1060 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1061 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1062 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1063 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1077 if (rdev->wiphy.wowlan->n_patterns) {
1078 struct nl80211_pattern_support pat = {
1079 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1080 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1081 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1082 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1085 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1090 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1093 /* TODO: send wowlan net detect */
1095 nla_nest_end(msg, nl_wowlan);
1101 static int nl80211_send_coalesce(struct sk_buff *msg,
1102 struct cfg80211_registered_device *rdev)
1104 struct nl80211_coalesce_rule_support rule;
1106 if (!rdev->wiphy.coalesce)
1109 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1110 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1111 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1112 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1113 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1114 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1116 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1122 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1123 struct ieee80211_supported_band *sband)
1125 struct nlattr *nl_rates, *nl_rate;
1126 struct ieee80211_rate *rate;
1130 if (sband->ht_cap.ht_supported &&
1131 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1132 sizeof(sband->ht_cap.mcs),
1133 &sband->ht_cap.mcs) ||
1134 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1135 sband->ht_cap.cap) ||
1136 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1137 sband->ht_cap.ampdu_factor) ||
1138 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1139 sband->ht_cap.ampdu_density)))
1143 if (sband->vht_cap.vht_supported &&
1144 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1145 sizeof(sband->vht_cap.vht_mcs),
1146 &sband->vht_cap.vht_mcs) ||
1147 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1148 sband->vht_cap.cap)))
1152 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1156 for (i = 0; i < sband->n_bitrates; i++) {
1157 nl_rate = nla_nest_start(msg, i);
1161 rate = &sband->bitrates[i];
1162 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1165 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1167 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1170 nla_nest_end(msg, nl_rate);
1173 nla_nest_end(msg, nl_rates);
1179 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1180 const struct ieee80211_txrx_stypes *mgmt_stypes)
1183 struct nlattr *nl_ftypes, *nl_ifs;
1184 enum nl80211_iftype ift;
1190 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1194 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1195 nl_ftypes = nla_nest_start(msg, ift);
1199 stypes = mgmt_stypes[ift].tx;
1202 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1203 (i << 4) | IEEE80211_FTYPE_MGMT))
1208 nla_nest_end(msg, nl_ftypes);
1211 nla_nest_end(msg, nl_ifs);
1213 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1217 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1218 nl_ftypes = nla_nest_start(msg, ift);
1222 stypes = mgmt_stypes[ift].rx;
1225 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1226 (i << 4) | IEEE80211_FTYPE_MGMT))
1231 nla_nest_end(msg, nl_ftypes);
1233 nla_nest_end(msg, nl_ifs);
1238 struct nl80211_dump_wiphy_state {
1241 long split_start, band_start, chan_start;
1245 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1246 enum nl80211_commands cmd,
1247 struct sk_buff *msg, u32 portid, u32 seq,
1248 int flags, struct nl80211_dump_wiphy_state *state)
1251 struct nlattr *nl_bands, *nl_band;
1252 struct nlattr *nl_freqs, *nl_freq;
1253 struct nlattr *nl_cmds;
1254 enum ieee80211_band band;
1255 struct ieee80211_channel *chan;
1257 const struct ieee80211_txrx_stypes *mgmt_stypes =
1258 rdev->wiphy.mgmt_stypes;
1261 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1265 if (WARN_ON(!state))
1268 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1269 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1270 wiphy_name(&rdev->wiphy)) ||
1271 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1272 cfg80211_rdev_list_generation))
1273 goto nla_put_failure;
1275 if (cmd != NL80211_CMD_NEW_WIPHY)
1278 switch (state->split_start) {
1280 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1281 rdev->wiphy.retry_short) ||
1282 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1283 rdev->wiphy.retry_long) ||
1284 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1285 rdev->wiphy.frag_threshold) ||
1286 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1287 rdev->wiphy.rts_threshold) ||
1288 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1289 rdev->wiphy.coverage_class) ||
1290 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1291 rdev->wiphy.max_scan_ssids) ||
1292 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1293 rdev->wiphy.max_sched_scan_ssids) ||
1294 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1295 rdev->wiphy.max_scan_ie_len) ||
1296 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1297 rdev->wiphy.max_sched_scan_ie_len) ||
1298 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1299 rdev->wiphy.max_match_sets))
1300 goto nla_put_failure;
1302 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1303 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1304 goto nla_put_failure;
1305 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1306 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1307 goto nla_put_failure;
1308 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1309 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1310 goto nla_put_failure;
1311 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1312 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1313 goto nla_put_failure;
1314 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1315 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1316 goto nla_put_failure;
1317 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1318 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1319 goto nla_put_failure;
1320 state->split_start++;
1324 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1325 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1326 rdev->wiphy.cipher_suites))
1327 goto nla_put_failure;
1329 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1330 rdev->wiphy.max_num_pmkids))
1331 goto nla_put_failure;
1333 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1334 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1335 goto nla_put_failure;
1337 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1338 rdev->wiphy.available_antennas_tx) ||
1339 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1340 rdev->wiphy.available_antennas_rx))
1341 goto nla_put_failure;
1343 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1344 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1345 rdev->wiphy.probe_resp_offload))
1346 goto nla_put_failure;
1348 if ((rdev->wiphy.available_antennas_tx ||
1349 rdev->wiphy.available_antennas_rx) &&
1350 rdev->ops->get_antenna) {
1351 u32 tx_ant = 0, rx_ant = 0;
1353 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1355 if (nla_put_u32(msg,
1356 NL80211_ATTR_WIPHY_ANTENNA_TX,
1359 NL80211_ATTR_WIPHY_ANTENNA_RX,
1361 goto nla_put_failure;
1365 state->split_start++;
1369 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1370 rdev->wiphy.interface_modes))
1371 goto nla_put_failure;
1372 state->split_start++;
1376 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1378 goto nla_put_failure;
1380 for (band = state->band_start;
1381 band < IEEE80211_NUM_BANDS; band++) {
1382 struct ieee80211_supported_band *sband;
1384 sband = rdev->wiphy.bands[band];
1389 nl_band = nla_nest_start(msg, band);
1391 goto nla_put_failure;
1393 switch (state->chan_start) {
1395 if (nl80211_send_band_rateinfo(msg, sband))
1396 goto nla_put_failure;
1397 state->chan_start++;
1401 /* add frequencies */
1402 nl_freqs = nla_nest_start(
1403 msg, NL80211_BAND_ATTR_FREQS);
1405 goto nla_put_failure;
1407 for (i = state->chan_start - 1;
1408 i < sband->n_channels;
1410 nl_freq = nla_nest_start(msg, i);
1412 goto nla_put_failure;
1414 chan = &sband->channels[i];
1416 if (nl80211_msg_put_channel(
1419 goto nla_put_failure;
1421 nla_nest_end(msg, nl_freq);
1425 if (i < sband->n_channels)
1426 state->chan_start = i + 2;
1428 state->chan_start = 0;
1429 nla_nest_end(msg, nl_freqs);
1432 nla_nest_end(msg, nl_band);
1435 /* start again here */
1436 if (state->chan_start)
1441 nla_nest_end(msg, nl_bands);
1443 if (band < IEEE80211_NUM_BANDS)
1444 state->band_start = band + 1;
1446 state->band_start = 0;
1448 /* if bands & channels are done, continue outside */
1449 if (state->band_start == 0 && state->chan_start == 0)
1450 state->split_start++;
1454 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1456 goto nla_put_failure;
1459 #define CMD(op, n) \
1461 if (rdev->ops->op) { \
1463 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1464 goto nla_put_failure; \
1468 CMD(add_virtual_intf, NEW_INTERFACE);
1469 CMD(change_virtual_intf, SET_INTERFACE);
1470 CMD(add_key, NEW_KEY);
1471 CMD(start_ap, START_AP);
1472 CMD(add_station, NEW_STATION);
1473 CMD(add_mpath, NEW_MPATH);
1474 CMD(update_mesh_config, SET_MESH_CONFIG);
1475 CMD(change_bss, SET_BSS);
1476 CMD(auth, AUTHENTICATE);
1477 CMD(assoc, ASSOCIATE);
1478 CMD(deauth, DEAUTHENTICATE);
1479 CMD(disassoc, DISASSOCIATE);
1480 CMD(join_ibss, JOIN_IBSS);
1481 CMD(join_mesh, JOIN_MESH);
1482 CMD(set_pmksa, SET_PMKSA);
1483 CMD(del_pmksa, DEL_PMKSA);
1484 CMD(flush_pmksa, FLUSH_PMKSA);
1485 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1486 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1487 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1488 CMD(mgmt_tx, FRAME);
1489 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1490 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1492 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1493 goto nla_put_failure;
1495 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1496 rdev->ops->join_mesh) {
1498 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1499 goto nla_put_failure;
1501 CMD(set_wds_peer, SET_WDS_PEER);
1502 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1503 CMD(tdls_mgmt, TDLS_MGMT);
1504 CMD(tdls_oper, TDLS_OPER);
1506 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1507 CMD(sched_scan_start, START_SCHED_SCAN);
1508 CMD(probe_client, PROBE_CLIENT);
1509 CMD(set_noack_map, SET_NOACK_MAP);
1510 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1512 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1513 goto nla_put_failure;
1515 CMD(start_p2p_device, START_P2P_DEVICE);
1516 CMD(set_mcast_rate, SET_MCAST_RATE);
1517 #ifdef CONFIG_NL80211_TESTMODE
1518 CMD(testmode_cmd, TESTMODE);
1521 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1522 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1523 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1524 CMD(channel_switch, CHANNEL_SWITCH);
1525 CMD(set_qos_map, SET_QOS_MAP);
1526 if (rdev->wiphy.features &
1527 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1528 CMD(add_tx_ts, ADD_TX_TS);
1530 /* add into the if now */
1533 if (rdev->ops->connect || rdev->ops->auth) {
1535 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1536 goto nla_put_failure;
1539 if (rdev->ops->disconnect || rdev->ops->deauth) {
1541 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1542 goto nla_put_failure;
1545 nla_nest_end(msg, nl_cmds);
1546 state->split_start++;
1550 if (rdev->ops->remain_on_channel &&
1551 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1553 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1554 rdev->wiphy.max_remain_on_channel_duration))
1555 goto nla_put_failure;
1557 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1558 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1559 goto nla_put_failure;
1561 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1562 goto nla_put_failure;
1563 state->split_start++;
1568 if (nl80211_send_wowlan(msg, rdev, state->split))
1569 goto nla_put_failure;
1570 state->split_start++;
1574 state->split_start++;
1577 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1578 rdev->wiphy.software_iftypes))
1579 goto nla_put_failure;
1581 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1583 goto nla_put_failure;
1585 state->split_start++;
1589 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1590 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1591 rdev->wiphy.ap_sme_capa))
1592 goto nla_put_failure;
1594 features = rdev->wiphy.features;
1596 * We can only add the per-channel limit information if the
1597 * dump is split, otherwise it makes it too big. Therefore
1598 * only advertise it in that case.
1601 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1602 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1603 goto nla_put_failure;
1605 if (rdev->wiphy.ht_capa_mod_mask &&
1606 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1607 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1608 rdev->wiphy.ht_capa_mod_mask))
1609 goto nla_put_failure;
1611 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1612 rdev->wiphy.max_acl_mac_addrs &&
1613 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1614 rdev->wiphy.max_acl_mac_addrs))
1615 goto nla_put_failure;
1618 * Any information below this point is only available to
1619 * applications that can deal with it being split. This
1620 * helps ensure that newly added capabilities don't break
1621 * older tools by overrunning their buffers.
1623 * We still increment split_start so that in the split
1624 * case we'll continue with more data in the next round,
1625 * but break unconditionally so unsplit data stops here.
1627 state->split_start++;
1630 if (rdev->wiphy.extended_capabilities &&
1631 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1632 rdev->wiphy.extended_capabilities_len,
1633 rdev->wiphy.extended_capabilities) ||
1634 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1635 rdev->wiphy.extended_capabilities_len,
1636 rdev->wiphy.extended_capabilities_mask)))
1637 goto nla_put_failure;
1639 if (rdev->wiphy.vht_capa_mod_mask &&
1640 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1641 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1642 rdev->wiphy.vht_capa_mod_mask))
1643 goto nla_put_failure;
1645 state->split_start++;
1648 if (nl80211_send_coalesce(msg, rdev))
1649 goto nla_put_failure;
1651 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1652 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1653 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1654 goto nla_put_failure;
1656 if (rdev->wiphy.max_ap_assoc_sta &&
1657 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1658 rdev->wiphy.max_ap_assoc_sta))
1659 goto nla_put_failure;
1661 state->split_start++;
1664 if (rdev->wiphy.n_vendor_commands) {
1665 const struct nl80211_vendor_cmd_info *info;
1666 struct nlattr *nested;
1668 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1670 goto nla_put_failure;
1672 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1673 info = &rdev->wiphy.vendor_commands[i].info;
1674 if (nla_put(msg, i + 1, sizeof(*info), info))
1675 goto nla_put_failure;
1677 nla_nest_end(msg, nested);
1680 if (rdev->wiphy.n_vendor_events) {
1681 const struct nl80211_vendor_cmd_info *info;
1682 struct nlattr *nested;
1684 nested = nla_nest_start(msg,
1685 NL80211_ATTR_VENDOR_EVENTS);
1687 goto nla_put_failure;
1689 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1690 info = &rdev->wiphy.vendor_events[i];
1691 if (nla_put(msg, i + 1, sizeof(*info), info))
1692 goto nla_put_failure;
1694 nla_nest_end(msg, nested);
1696 state->split_start++;
1699 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1700 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1701 rdev->wiphy.max_num_csa_counters))
1702 goto nla_put_failure;
1705 state->split_start = 0;
1709 return genlmsg_end(msg, hdr);
1712 genlmsg_cancel(msg, hdr);
1716 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1717 struct netlink_callback *cb,
1718 struct nl80211_dump_wiphy_state *state)
1720 struct nlattr **tb = nl80211_fam.attrbuf;
1721 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1722 tb, nl80211_fam.maxattr, nl80211_policy);
1723 /* ignore parse errors for backward compatibility */
1727 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1728 if (tb[NL80211_ATTR_WIPHY])
1729 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1730 if (tb[NL80211_ATTR_WDEV])
1731 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1732 if (tb[NL80211_ATTR_IFINDEX]) {
1733 struct net_device *netdev;
1734 struct cfg80211_registered_device *rdev;
1735 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1737 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1740 if (netdev->ieee80211_ptr) {
1741 rdev = wiphy_to_rdev(
1742 netdev->ieee80211_ptr->wiphy);
1743 state->filter_wiphy = rdev->wiphy_idx;
1750 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1753 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1754 struct cfg80211_registered_device *rdev;
1758 state = kzalloc(sizeof(*state), GFP_KERNEL);
1763 state->filter_wiphy = -1;
1764 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1770 cb->args[0] = (long)state;
1773 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1774 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1776 if (++idx <= state->start)
1778 if (state->filter_wiphy != -1 &&
1779 state->filter_wiphy != rdev->wiphy_idx)
1781 /* attempt to fit multiple wiphy data chunks into the skb */
1783 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1785 NETLINK_CB(cb->skb).portid,
1787 NLM_F_MULTI, state);
1790 * If sending the wiphy data didn't fit (ENOBUFS
1791 * or EMSGSIZE returned), this SKB is still
1792 * empty (so it's not too big because another
1793 * wiphy dataset is already in the skb) and
1794 * we've not tried to adjust the dump allocation
1795 * yet ... then adjust the alloc size to be
1796 * bigger, and return 1 but with the empty skb.
1797 * This results in an empty message being RX'ed
1798 * in userspace, but that is ignored.
1800 * We can then retry with the larger buffer.
1802 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1803 !skb->len && !state->split &&
1804 cb->min_dump_alloc < 4096) {
1805 cb->min_dump_alloc = 4096;
1806 state->split_start = 0;
1813 } while (state->split_start > 0);
1823 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1825 kfree((void *)cb->args[0]);
1829 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1831 struct sk_buff *msg;
1832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1833 struct nl80211_dump_wiphy_state state = {};
1835 msg = nlmsg_new(4096, GFP_KERNEL);
1839 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1840 info->snd_portid, info->snd_seq, 0,
1846 return genlmsg_reply(msg, info);
1849 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1850 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1851 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1852 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1853 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1854 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1857 static int parse_txq_params(struct nlattr *tb[],
1858 struct ieee80211_txq_params *txq_params)
1860 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1861 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1862 !tb[NL80211_TXQ_ATTR_AIFS])
1865 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1866 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1867 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1868 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1869 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1871 if (txq_params->ac >= NL80211_NUM_ACS)
1877 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1880 * You can only set the channel explicitly for WDS interfaces,
1881 * all others have their channel managed via their respective
1882 * "establish a connection" command (connect, join, ...)
1884 * For AP/GO and mesh mode, the channel can be set with the
1885 * channel userspace API, but is only stored and passed to the
1886 * low-level driver when the AP starts or the mesh is joined.
1887 * This is for backward compatibility, userspace can also give
1888 * the channel in the start-ap or join-mesh commands instead.
1890 * Monitors are special as they are normally slaved to
1891 * whatever else is going on, so they have their own special
1892 * operation to set the monitor channel if possible.
1895 wdev->iftype == NL80211_IFTYPE_AP ||
1896 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1897 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1898 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1901 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1902 struct genl_info *info,
1903 struct cfg80211_chan_def *chandef)
1907 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1910 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1912 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1913 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1914 chandef->center_freq1 = control_freq;
1915 chandef->center_freq2 = 0;
1917 /* Primary channel not allowed */
1918 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1921 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1922 enum nl80211_channel_type chantype;
1924 chantype = nla_get_u32(
1925 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1928 case NL80211_CHAN_NO_HT:
1929 case NL80211_CHAN_HT20:
1930 case NL80211_CHAN_HT40PLUS:
1931 case NL80211_CHAN_HT40MINUS:
1932 cfg80211_chandef_create(chandef, chandef->chan,
1938 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1940 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1941 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1942 chandef->center_freq1 =
1944 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1945 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1946 chandef->center_freq2 =
1948 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1951 if (!cfg80211_chandef_valid(chandef))
1954 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1955 IEEE80211_CHAN_DISABLED))
1958 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1959 chandef->width == NL80211_CHAN_WIDTH_10) &&
1960 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1966 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1967 struct net_device *dev,
1968 struct genl_info *info)
1970 struct cfg80211_chan_def chandef;
1972 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1973 struct wireless_dev *wdev = NULL;
1976 wdev = dev->ieee80211_ptr;
1977 if (!nl80211_can_set_dev_channel(wdev))
1980 iftype = wdev->iftype;
1982 result = nl80211_parse_chandef(rdev, info, &chandef);
1987 case NL80211_IFTYPE_AP:
1988 case NL80211_IFTYPE_P2P_GO:
1989 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
1993 if (wdev->beacon_interval) {
1994 if (!dev || !rdev->ops->set_ap_chanwidth ||
1995 !(rdev->wiphy.features &
1996 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2001 /* Only allow dynamic channel width changes */
2002 if (chandef.chan != wdev->preset_chandef.chan) {
2006 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2010 wdev->preset_chandef = chandef;
2013 case NL80211_IFTYPE_MESH_POINT:
2014 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2016 case NL80211_IFTYPE_MONITOR:
2017 result = cfg80211_set_monitor_channel(rdev, &chandef);
2026 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2029 struct net_device *netdev = info->user_ptr[1];
2031 return __nl80211_set_channel(rdev, netdev, info);
2034 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2037 struct net_device *dev = info->user_ptr[1];
2038 struct wireless_dev *wdev = dev->ieee80211_ptr;
2041 if (!info->attrs[NL80211_ATTR_MAC])
2044 if (netif_running(dev))
2047 if (!rdev->ops->set_wds_peer)
2050 if (wdev->iftype != NL80211_IFTYPE_WDS)
2053 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2054 return rdev_set_wds_peer(rdev, dev, bssid);
2058 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2060 struct cfg80211_registered_device *rdev;
2061 struct net_device *netdev = NULL;
2062 struct wireless_dev *wdev;
2063 int result = 0, rem_txq_params = 0;
2064 struct nlattr *nl_txq_params;
2066 u8 retry_short = 0, retry_long = 0;
2067 u32 frag_threshold = 0, rts_threshold = 0;
2068 u8 coverage_class = 0;
2073 * Try to find the wiphy and netdev. Normally this
2074 * function shouldn't need the netdev, but this is
2075 * done for backward compatibility -- previously
2076 * setting the channel was done per wiphy, but now
2077 * it is per netdev. Previous userland like hostapd
2078 * also passed a netdev to set_wiphy, so that it is
2079 * possible to let that go to the right netdev!
2082 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2083 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2085 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2086 if (netdev && netdev->ieee80211_ptr)
2087 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2093 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2096 return PTR_ERR(rdev);
2101 wdev = netdev->ieee80211_ptr;
2104 * end workaround code, by now the rdev is available
2105 * and locked, and wdev may or may not be NULL.
2108 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2109 result = cfg80211_dev_rename(
2110 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2115 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2116 struct ieee80211_txq_params txq_params;
2117 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2119 if (!rdev->ops->set_txq_params)
2125 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2126 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2129 if (!netif_running(netdev))
2132 nla_for_each_nested(nl_txq_params,
2133 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2135 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2136 nla_data(nl_txq_params),
2137 nla_len(nl_txq_params),
2141 result = parse_txq_params(tb, &txq_params);
2145 result = rdev_set_txq_params(rdev, netdev,
2152 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2153 result = __nl80211_set_channel(
2155 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2161 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2162 struct wireless_dev *txp_wdev = wdev;
2163 enum nl80211_tx_power_setting type;
2166 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2169 if (!rdev->ops->set_tx_power)
2172 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2173 type = nla_get_u32(info->attrs[idx]);
2175 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2176 (type != NL80211_TX_POWER_AUTOMATIC))
2179 if (type != NL80211_TX_POWER_AUTOMATIC) {
2180 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2181 mbm = nla_get_u32(info->attrs[idx]);
2184 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2189 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2190 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2192 if ((!rdev->wiphy.available_antennas_tx &&
2193 !rdev->wiphy.available_antennas_rx) ||
2194 !rdev->ops->set_antenna)
2197 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2198 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2200 /* reject antenna configurations which don't match the
2201 * available antenna masks, except for the "all" mask */
2202 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2203 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2206 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2207 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2209 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2216 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2217 retry_short = nla_get_u8(
2218 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2219 if (retry_short == 0)
2222 changed |= WIPHY_PARAM_RETRY_SHORT;
2225 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2226 retry_long = nla_get_u8(
2227 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2228 if (retry_long == 0)
2231 changed |= WIPHY_PARAM_RETRY_LONG;
2234 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2235 frag_threshold = nla_get_u32(
2236 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2237 if (frag_threshold < 256)
2240 if (frag_threshold != (u32) -1) {
2242 * Fragments (apart from the last one) are required to
2243 * have even length. Make the fragmentation code
2244 * simpler by stripping LSB should someone try to use
2245 * odd threshold value.
2247 frag_threshold &= ~0x1;
2249 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2252 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2253 rts_threshold = nla_get_u32(
2254 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2255 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2258 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2259 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2262 coverage_class = nla_get_u8(
2263 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2264 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2267 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2268 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2271 changed |= WIPHY_PARAM_DYN_ACK;
2275 u8 old_retry_short, old_retry_long;
2276 u32 old_frag_threshold, old_rts_threshold;
2277 u8 old_coverage_class;
2279 if (!rdev->ops->set_wiphy_params)
2282 old_retry_short = rdev->wiphy.retry_short;
2283 old_retry_long = rdev->wiphy.retry_long;
2284 old_frag_threshold = rdev->wiphy.frag_threshold;
2285 old_rts_threshold = rdev->wiphy.rts_threshold;
2286 old_coverage_class = rdev->wiphy.coverage_class;
2288 if (changed & WIPHY_PARAM_RETRY_SHORT)
2289 rdev->wiphy.retry_short = retry_short;
2290 if (changed & WIPHY_PARAM_RETRY_LONG)
2291 rdev->wiphy.retry_long = retry_long;
2292 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2293 rdev->wiphy.frag_threshold = frag_threshold;
2294 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2295 rdev->wiphy.rts_threshold = rts_threshold;
2296 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2297 rdev->wiphy.coverage_class = coverage_class;
2299 result = rdev_set_wiphy_params(rdev, changed);
2301 rdev->wiphy.retry_short = old_retry_short;
2302 rdev->wiphy.retry_long = old_retry_long;
2303 rdev->wiphy.frag_threshold = old_frag_threshold;
2304 rdev->wiphy.rts_threshold = old_rts_threshold;
2305 rdev->wiphy.coverage_class = old_coverage_class;
2311 static inline u64 wdev_id(struct wireless_dev *wdev)
2313 return (u64)wdev->identifier |
2314 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2317 static int nl80211_send_chandef(struct sk_buff *msg,
2318 const struct cfg80211_chan_def *chandef)
2320 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2323 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2324 chandef->chan->center_freq))
2326 switch (chandef->width) {
2327 case NL80211_CHAN_WIDTH_20_NOHT:
2328 case NL80211_CHAN_WIDTH_20:
2329 case NL80211_CHAN_WIDTH_40:
2330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2331 cfg80211_get_chandef_type(chandef)))
2337 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2339 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2341 if (chandef->center_freq2 &&
2342 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2347 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2348 struct cfg80211_registered_device *rdev,
2349 struct wireless_dev *wdev, bool removal)
2351 struct net_device *dev = wdev->netdev;
2352 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2356 cmd = NL80211_CMD_DEL_INTERFACE;
2358 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2363 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2364 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2365 goto nla_put_failure;
2367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2368 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2369 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2370 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2371 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2372 rdev->devlist_generation ^
2373 (cfg80211_rdev_list_generation << 2)))
2374 goto nla_put_failure;
2376 if (rdev->ops->get_channel) {
2378 struct cfg80211_chan_def chandef;
2380 ret = rdev_get_channel(rdev, wdev, &chandef);
2382 if (nl80211_send_chandef(msg, &chandef))
2383 goto nla_put_failure;
2387 if (wdev->ssid_len) {
2388 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2389 goto nla_put_failure;
2392 return genlmsg_end(msg, hdr);
2395 genlmsg_cancel(msg, hdr);
2399 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2403 int wp_start = cb->args[0];
2404 int if_start = cb->args[1];
2405 struct cfg80211_registered_device *rdev;
2406 struct wireless_dev *wdev;
2409 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2410 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2412 if (wp_idx < wp_start) {
2418 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2419 if (if_idx < if_start) {
2423 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2424 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2425 rdev, wdev, false) < 0) {
2436 cb->args[0] = wp_idx;
2437 cb->args[1] = if_idx;
2442 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2444 struct sk_buff *msg;
2445 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2446 struct wireless_dev *wdev = info->user_ptr[1];
2448 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2452 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2453 rdev, wdev, false) < 0) {
2458 return genlmsg_reply(msg, info);
2461 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2462 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2463 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2464 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2465 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2466 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2467 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2470 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2472 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2480 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2481 nla, mntr_flags_policy))
2484 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2486 *mntrflags |= (1<<flag);
2491 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2492 struct net_device *netdev, u8 use_4addr,
2493 enum nl80211_iftype iftype)
2496 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2502 case NL80211_IFTYPE_AP_VLAN:
2503 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2506 case NL80211_IFTYPE_STATION:
2507 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2517 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2520 struct vif_params params;
2522 enum nl80211_iftype otype, ntype;
2523 struct net_device *dev = info->user_ptr[1];
2524 u32 _flags, *flags = NULL;
2525 bool change = false;
2527 memset(¶ms, 0, sizeof(params));
2529 otype = ntype = dev->ieee80211_ptr->iftype;
2531 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2532 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2535 if (ntype > NL80211_IFTYPE_MAX)
2539 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2540 struct wireless_dev *wdev = dev->ieee80211_ptr;
2542 if (ntype != NL80211_IFTYPE_MESH_POINT)
2544 if (netif_running(dev))
2548 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2549 IEEE80211_MAX_MESH_ID_LEN);
2550 wdev->mesh_id_up_len =
2551 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2552 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2553 wdev->mesh_id_up_len);
2557 if (info->attrs[NL80211_ATTR_4ADDR]) {
2558 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2560 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2564 params.use_4addr = -1;
2567 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2568 if (ntype != NL80211_IFTYPE_MONITOR)
2570 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2579 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2580 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2584 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2588 if (!err && params.use_4addr != -1)
2589 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2594 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2597 struct vif_params params;
2598 struct wireless_dev *wdev;
2599 struct sk_buff *msg, *event;
2601 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2604 /* to avoid failing a new interface creation due to pending removal */
2605 cfg80211_destroy_ifaces(rdev);
2607 memset(¶ms, 0, sizeof(params));
2609 if (!info->attrs[NL80211_ATTR_IFNAME])
2612 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2613 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2614 if (type > NL80211_IFTYPE_MAX)
2618 if (!rdev->ops->add_virtual_intf ||
2619 !(rdev->wiphy.interface_modes & (1 << type)))
2622 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2623 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2624 info->attrs[NL80211_ATTR_MAC]) {
2625 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2627 if (!is_valid_ether_addr(params.macaddr))
2628 return -EADDRNOTAVAIL;
2631 if (info->attrs[NL80211_ATTR_4ADDR]) {
2632 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2633 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2638 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2642 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2643 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2646 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2647 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2650 wdev = rdev_add_virtual_intf(rdev,
2651 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2652 type, err ? NULL : &flags, ¶ms);
2653 if (WARN_ON(!wdev)) {
2656 } else if (IS_ERR(wdev)) {
2658 return PTR_ERR(wdev);
2661 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2662 wdev->owner_nlportid = info->snd_portid;
2665 case NL80211_IFTYPE_MESH_POINT:
2666 if (!info->attrs[NL80211_ATTR_MESH_ID])
2669 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2670 IEEE80211_MAX_MESH_ID_LEN);
2671 wdev->mesh_id_up_len =
2672 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2673 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2674 wdev->mesh_id_up_len);
2677 case NL80211_IFTYPE_P2P_DEVICE:
2679 * P2P Device doesn't have a netdev, so doesn't go
2680 * through the netdev notifier and must be added here
2682 mutex_init(&wdev->mtx);
2683 INIT_LIST_HEAD(&wdev->event_list);
2684 spin_lock_init(&wdev->event_lock);
2685 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2686 spin_lock_init(&wdev->mgmt_registrations_lock);
2688 wdev->identifier = ++rdev->wdev_id;
2689 list_add_rcu(&wdev->list, &rdev->wdev_list);
2690 rdev->devlist_generation++;
2696 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2697 rdev, wdev, false) < 0) {
2702 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2704 if (nl80211_send_iface(event, 0, 0, 0,
2705 rdev, wdev, false) < 0) {
2710 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2711 event, 0, NL80211_MCGRP_CONFIG,
2716 return genlmsg_reply(msg, info);
2719 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2721 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2722 struct wireless_dev *wdev = info->user_ptr[1];
2723 struct sk_buff *msg;
2726 if (!rdev->ops->del_virtual_intf)
2729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2730 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2736 * If we remove a wireless device without a netdev then clear
2737 * user_ptr[1] so that nl80211_post_doit won't dereference it
2738 * to check if it needs to do dev_put(). Otherwise it crashes
2739 * since the wdev has been freed, unlike with a netdev where
2740 * we need the dev_put() for the netdev to really be freed.
2743 info->user_ptr[1] = NULL;
2745 status = rdev_del_virtual_intf(rdev, wdev);
2746 if (status >= 0 && msg)
2747 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2748 msg, 0, NL80211_MCGRP_CONFIG,
2756 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2758 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2759 struct net_device *dev = info->user_ptr[1];
2762 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2765 if (!rdev->ops->set_noack_map)
2768 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2770 return rdev_set_noack_map(rdev, dev, noack_map);
2773 struct get_key_cookie {
2774 struct sk_buff *msg;
2779 static void get_key_callback(void *c, struct key_params *params)
2782 struct get_key_cookie *cookie = c;
2785 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2786 params->key_len, params->key)) ||
2788 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2789 params->seq_len, params->seq)) ||
2791 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2793 goto nla_put_failure;
2795 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2797 goto nla_put_failure;
2800 nla_put(cookie->msg, NL80211_KEY_DATA,
2801 params->key_len, params->key)) ||
2803 nla_put(cookie->msg, NL80211_KEY_SEQ,
2804 params->seq_len, params->seq)) ||
2806 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2808 goto nla_put_failure;
2810 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2811 goto nla_put_failure;
2813 nla_nest_end(cookie->msg, key);
2820 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2822 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2824 struct net_device *dev = info->user_ptr[1];
2826 const u8 *mac_addr = NULL;
2828 struct get_key_cookie cookie = {
2832 struct sk_buff *msg;
2834 if (info->attrs[NL80211_ATTR_KEY_IDX])
2835 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2840 if (info->attrs[NL80211_ATTR_MAC])
2841 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2843 pairwise = !!mac_addr;
2844 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2845 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2846 if (kt >= NUM_NL80211_KEYTYPES)
2848 if (kt != NL80211_KEYTYPE_GROUP &&
2849 kt != NL80211_KEYTYPE_PAIRWISE)
2851 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2854 if (!rdev->ops->get_key)
2857 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2861 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2862 NL80211_CMD_NEW_KEY);
2864 goto nla_put_failure;
2867 cookie.idx = key_idx;
2869 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2870 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2871 goto nla_put_failure;
2873 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2874 goto nla_put_failure;
2876 if (pairwise && mac_addr &&
2877 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2880 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2887 goto nla_put_failure;
2889 genlmsg_end(msg, hdr);
2890 return genlmsg_reply(msg, info);
2899 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2901 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2902 struct key_parse key;
2904 struct net_device *dev = info->user_ptr[1];
2906 err = nl80211_parse_key(info, &key);
2913 /* only support setting default key */
2914 if (!key.def && !key.defmgmt)
2917 wdev_lock(dev->ieee80211_ptr);
2920 if (!rdev->ops->set_default_key) {
2925 err = nl80211_key_allowed(dev->ieee80211_ptr);
2929 err = rdev_set_default_key(rdev, dev, key.idx,
2930 key.def_uni, key.def_multi);
2935 #ifdef CONFIG_CFG80211_WEXT
2936 dev->ieee80211_ptr->wext.default_key = key.idx;
2939 if (key.def_uni || !key.def_multi) {
2944 if (!rdev->ops->set_default_mgmt_key) {
2949 err = nl80211_key_allowed(dev->ieee80211_ptr);
2953 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2957 #ifdef CONFIG_CFG80211_WEXT
2958 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2963 wdev_unlock(dev->ieee80211_ptr);
2968 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2972 struct net_device *dev = info->user_ptr[1];
2973 struct key_parse key;
2974 const u8 *mac_addr = NULL;
2976 err = nl80211_parse_key(info, &key);
2983 if (info->attrs[NL80211_ATTR_MAC])
2984 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2986 if (key.type == -1) {
2988 key.type = NL80211_KEYTYPE_PAIRWISE;
2990 key.type = NL80211_KEYTYPE_GROUP;
2994 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2995 key.type != NL80211_KEYTYPE_GROUP)
2998 if (!rdev->ops->add_key)
3001 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3002 key.type == NL80211_KEYTYPE_PAIRWISE,
3006 wdev_lock(dev->ieee80211_ptr);
3007 err = nl80211_key_allowed(dev->ieee80211_ptr);
3009 err = rdev_add_key(rdev, dev, key.idx,
3010 key.type == NL80211_KEYTYPE_PAIRWISE,
3012 wdev_unlock(dev->ieee80211_ptr);
3017 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3021 struct net_device *dev = info->user_ptr[1];
3022 u8 *mac_addr = NULL;
3023 struct key_parse key;
3025 err = nl80211_parse_key(info, &key);
3029 if (info->attrs[NL80211_ATTR_MAC])
3030 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3032 if (key.type == -1) {
3034 key.type = NL80211_KEYTYPE_PAIRWISE;
3036 key.type = NL80211_KEYTYPE_GROUP;
3040 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3041 key.type != NL80211_KEYTYPE_GROUP)
3044 if (!rdev->ops->del_key)
3047 wdev_lock(dev->ieee80211_ptr);
3048 err = nl80211_key_allowed(dev->ieee80211_ptr);
3050 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3051 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3055 err = rdev_del_key(rdev, dev, key.idx,
3056 key.type == NL80211_KEYTYPE_PAIRWISE,
3059 #ifdef CONFIG_CFG80211_WEXT
3061 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3062 dev->ieee80211_ptr->wext.default_key = -1;
3063 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3064 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3067 wdev_unlock(dev->ieee80211_ptr);
3072 /* This function returns an error or the number of nested attributes */
3073 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3075 struct nlattr *attr;
3076 int n_entries = 0, tmp;
3078 nla_for_each_nested(attr, nl_attr, tmp) {
3079 if (nla_len(attr) != ETH_ALEN)
3089 * This function parses ACL information and allocates memory for ACL data.
3090 * On successful return, the calling function is responsible to free the
3091 * ACL buffer returned by this function.
3093 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3094 struct genl_info *info)
3096 enum nl80211_acl_policy acl_policy;
3097 struct nlattr *attr;
3098 struct cfg80211_acl_data *acl;
3099 int i = 0, n_entries, tmp;
3101 if (!wiphy->max_acl_mac_addrs)
3102 return ERR_PTR(-EOPNOTSUPP);
3104 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3105 return ERR_PTR(-EINVAL);
3107 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3108 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3109 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3110 return ERR_PTR(-EINVAL);
3112 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3113 return ERR_PTR(-EINVAL);
3115 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3117 return ERR_PTR(n_entries);
3119 if (n_entries > wiphy->max_acl_mac_addrs)
3120 return ERR_PTR(-ENOTSUPP);
3122 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3125 return ERR_PTR(-ENOMEM);
3127 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3128 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3132 acl->n_acl_entries = n_entries;
3133 acl->acl_policy = acl_policy;
3138 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3140 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3141 struct net_device *dev = info->user_ptr[1];
3142 struct cfg80211_acl_data *acl;
3145 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3146 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3149 if (!dev->ieee80211_ptr->beacon_interval)
3152 acl = parse_acl_data(&rdev->wiphy, info);
3154 return PTR_ERR(acl);
3156 err = rdev_set_mac_acl(rdev, dev, acl);
3163 static int nl80211_parse_beacon(struct nlattr *attrs[],
3164 struct cfg80211_beacon_data *bcn)
3166 bool haveinfo = false;
3168 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3169 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3170 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3171 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3174 memset(bcn, 0, sizeof(*bcn));
3176 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3177 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3178 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3184 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3185 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3186 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3193 if (attrs[NL80211_ATTR_IE]) {
3194 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3195 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3198 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3199 bcn->proberesp_ies =
3200 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3201 bcn->proberesp_ies_len =
3202 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3205 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3206 bcn->assocresp_ies =
3207 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3208 bcn->assocresp_ies_len =
3209 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3212 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3213 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3214 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3220 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3221 struct cfg80211_ap_settings *params)
3223 struct wireless_dev *wdev;
3226 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3227 if (wdev->iftype != NL80211_IFTYPE_AP &&
3228 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3231 if (!wdev->preset_chandef.chan)
3234 params->chandef = wdev->preset_chandef;
3242 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3243 enum nl80211_auth_type auth_type,
3244 enum nl80211_commands cmd)
3246 if (auth_type > NL80211_AUTHTYPE_MAX)
3250 case NL80211_CMD_AUTHENTICATE:
3251 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3252 auth_type == NL80211_AUTHTYPE_SAE)
3255 case NL80211_CMD_CONNECT:
3256 case NL80211_CMD_START_AP:
3257 /* SAE not supported yet */
3258 if (auth_type == NL80211_AUTHTYPE_SAE)
3266 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3268 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3269 struct net_device *dev = info->user_ptr[1];
3270 struct wireless_dev *wdev = dev->ieee80211_ptr;
3271 struct cfg80211_ap_settings params;
3274 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3275 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3278 if (!rdev->ops->start_ap)
3281 if (wdev->beacon_interval)
3284 memset(¶ms, 0, sizeof(params));
3286 /* these are required for START_AP */
3287 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3288 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3289 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3292 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3296 params.beacon_interval =
3297 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3298 params.dtim_period =
3299 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3301 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3306 * In theory, some of these attributes should be required here
3307 * but since they were not used when the command was originally
3308 * added, keep them optional for old user space programs to let
3309 * them continue to work with drivers that do not need the
3310 * additional information -- drivers must check!
3312 if (info->attrs[NL80211_ATTR_SSID]) {
3313 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3315 nla_len(info->attrs[NL80211_ATTR_SSID]);
3316 if (params.ssid_len == 0 ||
3317 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3321 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3322 params.hidden_ssid = nla_get_u32(
3323 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3324 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3325 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3326 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3330 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3332 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3333 params.auth_type = nla_get_u32(
3334 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3335 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3336 NL80211_CMD_START_AP))
3339 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3341 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3342 NL80211_MAX_NR_CIPHER_SUITES);
3346 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3347 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3349 params.inactivity_timeout = nla_get_u16(
3350 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3353 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3354 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3356 params.p2p_ctwindow =
3357 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3358 if (params.p2p_ctwindow > 127)
3360 if (params.p2p_ctwindow != 0 &&
3361 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3365 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3368 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3370 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3373 params.p2p_opp_ps = tmp;
3374 if (params.p2p_opp_ps != 0 &&
3375 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3379 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3380 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3383 } else if (wdev->preset_chandef.chan) {
3384 params.chandef = wdev->preset_chandef;
3385 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3388 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
3392 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3393 params.acl = parse_acl_data(&rdev->wiphy, info);
3394 if (IS_ERR(params.acl))
3395 return PTR_ERR(params.acl);
3398 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3400 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3401 switch (params.smps_mode) {
3402 case NL80211_SMPS_OFF:
3404 case NL80211_SMPS_STATIC:
3405 if (!(rdev->wiphy.features &
3406 NL80211_FEATURE_STATIC_SMPS))
3409 case NL80211_SMPS_DYNAMIC:
3410 if (!(rdev->wiphy.features &
3411 NL80211_FEATURE_DYNAMIC_SMPS))
3418 params.smps_mode = NL80211_SMPS_OFF;
3422 err = rdev_start_ap(rdev, dev, ¶ms);
3424 wdev->preset_chandef = params.chandef;
3425 wdev->beacon_interval = params.beacon_interval;
3426 wdev->chandef = params.chandef;
3427 wdev->ssid_len = params.ssid_len;
3428 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3437 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3439 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3440 struct net_device *dev = info->user_ptr[1];
3441 struct wireless_dev *wdev = dev->ieee80211_ptr;
3442 struct cfg80211_beacon_data params;
3445 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3446 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3449 if (!rdev->ops->change_beacon)
3452 if (!wdev->beacon_interval)
3455 err = nl80211_parse_beacon(info->attrs, ¶ms);
3460 err = rdev_change_beacon(rdev, dev, ¶ms);
3466 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3468 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3469 struct net_device *dev = info->user_ptr[1];
3471 return cfg80211_stop_ap(rdev, dev, false);
3474 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3475 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3476 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3477 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3478 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3479 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3480 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3483 static int parse_station_flags(struct genl_info *info,
3484 enum nl80211_iftype iftype,
3485 struct station_parameters *params)
3487 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3492 * Try parsing the new attribute first so userspace
3493 * can specify both for older kernels.
3495 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3497 struct nl80211_sta_flag_update *sta_flags;
3499 sta_flags = nla_data(nla);
3500 params->sta_flags_mask = sta_flags->mask;
3501 params->sta_flags_set = sta_flags->set;
3502 params->sta_flags_set &= params->sta_flags_mask;
3503 if ((params->sta_flags_mask |
3504 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3509 /* if present, parse the old attribute */
3511 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3515 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3516 nla, sta_flags_policy))
3520 * Only allow certain flags for interface types so that
3521 * other attributes are silently ignored. Remember that
3522 * this is backward compatibility code with old userspace
3523 * and shouldn't be hit in other cases anyway.
3526 case NL80211_IFTYPE_AP:
3527 case NL80211_IFTYPE_AP_VLAN:
3528 case NL80211_IFTYPE_P2P_GO:
3529 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3530 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3531 BIT(NL80211_STA_FLAG_WME) |
3532 BIT(NL80211_STA_FLAG_MFP);
3534 case NL80211_IFTYPE_P2P_CLIENT:
3535 case NL80211_IFTYPE_STATION:
3536 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3537 BIT(NL80211_STA_FLAG_TDLS_PEER);
3539 case NL80211_IFTYPE_MESH_POINT:
3540 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3541 BIT(NL80211_STA_FLAG_MFP) |
3542 BIT(NL80211_STA_FLAG_AUTHORIZED);
3547 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3549 params->sta_flags_set |= (1<<flag);
3551 /* no longer support new API additions in old API */
3552 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3560 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3563 struct nlattr *rate;
3567 rate = nla_nest_start(msg, attr);
3571 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3572 bitrate = cfg80211_calculate_bitrate(info);
3573 /* report 16-bit bitrate only if we can */
3574 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3576 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3578 if (bitrate_compat > 0 &&
3579 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3582 if (info->flags & RATE_INFO_FLAGS_MCS) {
3583 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3585 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3586 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3588 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3589 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3591 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3592 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3594 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3596 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3597 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3599 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3600 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3602 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3603 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3605 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3606 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3608 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3609 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3613 nla_nest_end(msg, rate);
3617 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3626 attr = nla_nest_start(msg, id);
3630 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3631 if (!(mask & BIT(i)))
3634 if (nla_put_u8(msg, i, signal[i]))
3638 nla_nest_end(msg, attr);
3643 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3645 struct cfg80211_registered_device *rdev,
3646 struct net_device *dev,
3647 const u8 *mac_addr, struct station_info *sinfo)
3650 struct nlattr *sinfoattr, *bss_param;
3652 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3656 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3657 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3658 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3659 goto nla_put_failure;
3661 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3663 goto nla_put_failure;
3664 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3665 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3666 sinfo->connected_time))
3667 goto nla_put_failure;
3668 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3669 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3670 sinfo->inactive_time))
3671 goto nla_put_failure;
3672 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3673 STATION_INFO_RX_BYTES64)) &&
3674 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3675 (u32)sinfo->rx_bytes))
3676 goto nla_put_failure;
3677 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3678 STATION_INFO_TX_BYTES64)) &&
3679 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3680 (u32)sinfo->tx_bytes))
3681 goto nla_put_failure;
3682 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3683 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3685 goto nla_put_failure;
3686 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3687 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3689 goto nla_put_failure;
3690 if ((sinfo->filled & STATION_INFO_LLID) &&
3691 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3692 goto nla_put_failure;
3693 if ((sinfo->filled & STATION_INFO_PLID) &&
3694 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3695 goto nla_put_failure;
3696 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3697 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3698 sinfo->plink_state))
3699 goto nla_put_failure;
3700 switch (rdev->wiphy.signal_type) {
3701 case CFG80211_SIGNAL_TYPE_MBM:
3702 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3703 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3705 goto nla_put_failure;
3706 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3707 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3709 goto nla_put_failure;
3714 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3715 if (!nl80211_put_signal(msg, sinfo->chains,
3716 sinfo->chain_signal,
3717 NL80211_STA_INFO_CHAIN_SIGNAL))
3718 goto nla_put_failure;
3720 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3721 if (!nl80211_put_signal(msg, sinfo->chains,
3722 sinfo->chain_signal_avg,
3723 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3724 goto nla_put_failure;
3726 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3727 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3728 NL80211_STA_INFO_TX_BITRATE))
3729 goto nla_put_failure;
3731 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3732 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3733 NL80211_STA_INFO_RX_BITRATE))
3734 goto nla_put_failure;
3736 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3737 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3739 goto nla_put_failure;
3740 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3741 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3743 goto nla_put_failure;
3744 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3745 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3747 goto nla_put_failure;
3748 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3749 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3751 goto nla_put_failure;
3752 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3753 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3754 sinfo->expected_throughput))
3755 goto nla_put_failure;
3756 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3757 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3758 sinfo->beacon_loss_count))
3759 goto nla_put_failure;
3760 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3761 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3763 goto nla_put_failure;
3764 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3765 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3767 goto nla_put_failure;
3768 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3769 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3771 goto nla_put_failure;
3772 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3773 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3775 goto nla_put_failure;
3777 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3778 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3779 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3780 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3781 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3782 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3783 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3784 sinfo->bss_param.dtim_period) ||
3785 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3786 sinfo->bss_param.beacon_interval))
3787 goto nla_put_failure;
3789 nla_nest_end(msg, bss_param);
3791 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3792 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3793 sizeof(struct nl80211_sta_flag_update),
3795 goto nla_put_failure;
3796 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3797 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3799 goto nla_put_failure;
3800 nla_nest_end(msg, sinfoattr);
3802 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3803 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3804 sinfo->assoc_req_ies))
3805 goto nla_put_failure;
3807 return genlmsg_end(msg, hdr);
3810 genlmsg_cancel(msg, hdr);
3814 static int nl80211_dump_station(struct sk_buff *skb,
3815 struct netlink_callback *cb)
3817 struct station_info sinfo;
3818 struct cfg80211_registered_device *rdev;
3819 struct wireless_dev *wdev;
3820 u8 mac_addr[ETH_ALEN];
3821 int sta_idx = cb->args[2];
3824 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3828 if (!wdev->netdev) {
3833 if (!rdev->ops->dump_station) {
3839 memset(&sinfo, 0, sizeof(sinfo));
3840 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3847 if (nl80211_send_station(skb,
3848 NETLINK_CB(cb->skb).portid,
3849 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3850 rdev, wdev->netdev, mac_addr,
3859 cb->args[2] = sta_idx;
3862 nl80211_finish_wdev_dump(rdev);
3867 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3869 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3870 struct net_device *dev = info->user_ptr[1];
3871 struct station_info sinfo;
3872 struct sk_buff *msg;
3873 u8 *mac_addr = NULL;
3876 memset(&sinfo, 0, sizeof(sinfo));
3878 if (!info->attrs[NL80211_ATTR_MAC])
3881 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3883 if (!rdev->ops->get_station)
3886 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3890 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3894 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3895 rdev, dev, mac_addr, &sinfo) < 0) {
3900 return genlmsg_reply(msg, info);
3903 int cfg80211_check_station_change(struct wiphy *wiphy,
3904 struct station_parameters *params,
3905 enum cfg80211_station_type statype)
3907 if (params->listen_interval != -1)
3910 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3913 /* When you run into this, adjust the code below for the new flag */
3914 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3917 case CFG80211_STA_MESH_PEER_KERNEL:
3918 case CFG80211_STA_MESH_PEER_USER:
3920 * No ignoring the TDLS flag here -- the userspace mesh
3921 * code doesn't have the bug of including TDLS in the
3924 if (params->sta_flags_mask &
3925 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3926 BIT(NL80211_STA_FLAG_MFP) |
3927 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3930 case CFG80211_STA_TDLS_PEER_SETUP:
3931 case CFG80211_STA_TDLS_PEER_ACTIVE:
3932 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3934 /* ignore since it can't change */
3935 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3938 /* disallow mesh-specific things */
3939 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3941 if (params->local_pm)
3943 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3947 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3948 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3949 /* TDLS can't be set, ... */
3950 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3953 * ... but don't bother the driver with it. This works around
3954 * a hostapd/wpa_supplicant issue -- it always includes the
3955 * TLDS_PEER flag in the mask even for AP mode.
3957 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3960 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3961 /* reject other things that can't change */
3962 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3964 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3966 if (params->supported_rates)
3968 if (params->ext_capab || params->ht_capa || params->vht_capa)
3972 if (statype != CFG80211_STA_AP_CLIENT) {
3978 case CFG80211_STA_AP_MLME_CLIENT:
3979 /* Use this only for authorizing/unauthorizing a station */
3980 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3983 case CFG80211_STA_AP_CLIENT:
3984 /* accept only the listed bits */
3985 if (params->sta_flags_mask &
3986 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3987 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3988 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3989 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3990 BIT(NL80211_STA_FLAG_WME) |
3991 BIT(NL80211_STA_FLAG_MFP)))
3994 /* but authenticated/associated only if driver handles it */
3995 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3996 params->sta_flags_mask &
3997 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3998 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4001 case CFG80211_STA_IBSS:
4002 case CFG80211_STA_AP_STA:
4003 /* reject any changes other than AUTHORIZED */
4004 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4007 case CFG80211_STA_TDLS_PEER_SETUP:
4008 /* reject any changes other than AUTHORIZED or WME */
4009 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4010 BIT(NL80211_STA_FLAG_WME)))
4012 /* force (at least) rates when authorizing */
4013 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4014 !params->supported_rates)
4017 case CFG80211_STA_TDLS_PEER_ACTIVE:
4018 /* reject any changes */
4020 case CFG80211_STA_MESH_PEER_KERNEL:
4021 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4024 case CFG80211_STA_MESH_PEER_USER:
4025 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4032 EXPORT_SYMBOL(cfg80211_check_station_change);
4035 * Get vlan interface making sure it is running and on the right wiphy.
4037 static struct net_device *get_vlan(struct genl_info *info,
4038 struct cfg80211_registered_device *rdev)
4040 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4041 struct net_device *v;
4047 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4049 return ERR_PTR(-ENODEV);
4051 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4056 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4057 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4058 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4063 if (!netif_running(v)) {
4071 return ERR_PTR(ret);
4074 static const struct nla_policy
4075 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4076 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4077 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4080 static int nl80211_parse_sta_wme(struct genl_info *info,
4081 struct station_parameters *params)
4083 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4087 /* parse WME attributes if present */
4088 if (!info->attrs[NL80211_ATTR_STA_WME])
4091 nla = info->attrs[NL80211_ATTR_STA_WME];
4092 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4093 nl80211_sta_wme_policy);
4097 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4098 params->uapsd_queues = nla_get_u8(
4099 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4100 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4103 if (tb[NL80211_STA_WME_MAX_SP])
4104 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4106 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4109 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4114 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4115 struct station_parameters *params)
4117 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4118 params->supported_channels =
4119 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4120 params->supported_channels_len =
4121 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4123 * Need to include at least one (first channel, number of
4124 * channels) tuple for each subband, and must have proper
4125 * tuples for the rest of the data as well.
4127 if (params->supported_channels_len < 2)
4129 if (params->supported_channels_len % 2)
4133 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4134 params->supported_oper_classes =
4135 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4136 params->supported_oper_classes_len =
4137 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4139 * The value of the Length field of the Supported Operating
4140 * Classes element is between 2 and 253.
4142 if (params->supported_oper_classes_len < 2 ||
4143 params->supported_oper_classes_len > 253)
4149 static int nl80211_set_station_tdls(struct genl_info *info,
4150 struct station_parameters *params)
4153 /* Dummy STA entry gets updated once the peer capabilities are known */
4154 if (info->attrs[NL80211_ATTR_PEER_AID])
4155 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4156 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4158 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4159 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4161 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4163 err = nl80211_parse_sta_channel_info(info, params);
4167 return nl80211_parse_sta_wme(info, params);
4170 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4173 struct net_device *dev = info->user_ptr[1];
4174 struct station_parameters params;
4178 memset(¶ms, 0, sizeof(params));
4180 params.listen_interval = -1;
4182 if (!rdev->ops->change_station)
4185 if (info->attrs[NL80211_ATTR_STA_AID])
4188 if (!info->attrs[NL80211_ATTR_MAC])
4191 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4193 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4194 params.supported_rates =
4195 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4196 params.supported_rates_len =
4197 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4200 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4202 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4203 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4206 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4208 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4209 params.ext_capab_len =
4210 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4213 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4216 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4219 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4220 params.plink_action =
4221 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4222 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4226 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4227 params.plink_state =
4228 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4229 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4231 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4234 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4235 enum nl80211_mesh_power_mode pm = nla_get_u32(
4236 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4238 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4239 pm > NL80211_MESH_POWER_MAX)
4242 params.local_pm = pm;
4245 /* Include parameters for TDLS peer (will check later) */
4246 err = nl80211_set_station_tdls(info, ¶ms);
4250 params.vlan = get_vlan(info, rdev);
4251 if (IS_ERR(params.vlan))
4252 return PTR_ERR(params.vlan);
4254 switch (dev->ieee80211_ptr->iftype) {
4255 case NL80211_IFTYPE_AP:
4256 case NL80211_IFTYPE_AP_VLAN:
4257 case NL80211_IFTYPE_P2P_GO:
4258 case NL80211_IFTYPE_P2P_CLIENT:
4259 case NL80211_IFTYPE_STATION:
4260 case NL80211_IFTYPE_ADHOC:
4261 case NL80211_IFTYPE_MESH_POINT:
4268 /* driver will call cfg80211_check_station_change() */
4269 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4273 dev_put(params.vlan);
4278 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4280 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4282 struct net_device *dev = info->user_ptr[1];
4283 struct station_parameters params;
4284 u8 *mac_addr = NULL;
4286 memset(¶ms, 0, sizeof(params));
4288 if (!rdev->ops->add_station)
4291 if (!info->attrs[NL80211_ATTR_MAC])
4294 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4297 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4300 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4301 !info->attrs[NL80211_ATTR_PEER_AID])
4304 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4305 params.supported_rates =
4306 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4307 params.supported_rates_len =
4308 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4309 params.listen_interval =
4310 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4312 if (info->attrs[NL80211_ATTR_PEER_AID])
4313 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4315 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4316 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4319 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4321 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4322 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4325 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4327 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4328 params.ext_capab_len =
4329 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4332 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4334 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4336 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4338 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4340 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4341 params.opmode_notif_used = true;
4342 params.opmode_notif =
4343 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4346 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4347 params.plink_action =
4348 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4349 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4353 err = nl80211_parse_sta_channel_info(info, ¶ms);
4357 err = nl80211_parse_sta_wme(info, ¶ms);
4361 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4364 /* When you run into this, adjust the code below for the new flag */
4365 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4367 switch (dev->ieee80211_ptr->iftype) {
4368 case NL80211_IFTYPE_AP:
4369 case NL80211_IFTYPE_AP_VLAN:
4370 case NL80211_IFTYPE_P2P_GO:
4371 /* ignore WME attributes if iface/sta is not capable */
4372 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4373 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4374 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4376 /* TDLS peers cannot be added */
4377 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4378 info->attrs[NL80211_ATTR_PEER_AID])
4380 /* but don't bother the driver with it */
4381 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4383 /* allow authenticated/associated only if driver handles it */
4384 if (!(rdev->wiphy.features &
4385 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4386 params.sta_flags_mask &
4387 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4388 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4391 /* must be last in here for error handling */
4392 params.vlan = get_vlan(info, rdev);
4393 if (IS_ERR(params.vlan))
4394 return PTR_ERR(params.vlan);
4396 case NL80211_IFTYPE_MESH_POINT:
4397 /* ignore uAPSD data */
4398 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4400 /* associated is disallowed */
4401 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4403 /* TDLS peers cannot be added */
4404 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4405 info->attrs[NL80211_ATTR_PEER_AID])
4408 case NL80211_IFTYPE_STATION:
4409 case NL80211_IFTYPE_P2P_CLIENT:
4410 /* ignore uAPSD data */
4411 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4413 /* these are disallowed */
4414 if (params.sta_flags_mask &
4415 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4416 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4418 /* Only TDLS peers can be added */
4419 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4421 /* Can only add if TDLS ... */
4422 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4424 /* ... with external setup is supported */
4425 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4428 * Older wpa_supplicant versions always mark the TDLS peer
4429 * as authorized, but it shouldn't yet be.
4431 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4437 /* be aware of params.vlan when changing code here */
4439 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4442 dev_put(params.vlan);
4446 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4448 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4449 struct net_device *dev = info->user_ptr[1];
4450 struct station_del_parameters params;
4452 memset(¶ms, 0, sizeof(params));
4454 if (info->attrs[NL80211_ATTR_MAC])
4455 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4457 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4459 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4460 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4463 if (!rdev->ops->del_station)
4466 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4468 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4469 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4470 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4473 /* Default to Deauthentication frame */
4474 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4477 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4478 params.reason_code =
4479 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4480 if (params.reason_code == 0)
4481 return -EINVAL; /* 0 is reserved */
4483 /* Default to reason code 2 */
4484 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4487 return rdev_del_station(rdev, dev, ¶ms);
4490 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4491 int flags, struct net_device *dev,
4492 u8 *dst, u8 *next_hop,
4493 struct mpath_info *pinfo)
4496 struct nlattr *pinfoattr;
4498 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4502 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4503 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4504 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4505 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4506 goto nla_put_failure;
4508 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4510 goto nla_put_failure;
4511 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4512 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4514 goto nla_put_failure;
4515 if (((pinfo->filled & MPATH_INFO_SN) &&
4516 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4517 ((pinfo->filled & MPATH_INFO_METRIC) &&
4518 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4520 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4521 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4523 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4524 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4526 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4527 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4528 pinfo->discovery_timeout)) ||
4529 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4530 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4531 pinfo->discovery_retries)))
4532 goto nla_put_failure;
4534 nla_nest_end(msg, pinfoattr);
4536 return genlmsg_end(msg, hdr);
4539 genlmsg_cancel(msg, hdr);
4543 static int nl80211_dump_mpath(struct sk_buff *skb,
4544 struct netlink_callback *cb)
4546 struct mpath_info pinfo;
4547 struct cfg80211_registered_device *rdev;
4548 struct wireless_dev *wdev;
4550 u8 next_hop[ETH_ALEN];
4551 int path_idx = cb->args[2];
4554 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4558 if (!rdev->ops->dump_mpath) {
4563 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4569 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4576 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4577 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4578 wdev->netdev, dst, next_hop,
4587 cb->args[2] = path_idx;
4590 nl80211_finish_wdev_dump(rdev);
4594 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4598 struct net_device *dev = info->user_ptr[1];
4599 struct mpath_info pinfo;
4600 struct sk_buff *msg;
4602 u8 next_hop[ETH_ALEN];
4604 memset(&pinfo, 0, sizeof(pinfo));
4606 if (!info->attrs[NL80211_ATTR_MAC])
4609 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4611 if (!rdev->ops->get_mpath)
4614 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4617 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4625 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4626 dev, dst, next_hop, &pinfo) < 0) {
4631 return genlmsg_reply(msg, info);
4634 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4636 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4637 struct net_device *dev = info->user_ptr[1];
4639 u8 *next_hop = NULL;
4641 if (!info->attrs[NL80211_ATTR_MAC])
4644 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4647 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4648 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4650 if (!rdev->ops->change_mpath)
4653 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4656 return rdev_change_mpath(rdev, dev, dst, next_hop);
4659 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4661 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4662 struct net_device *dev = info->user_ptr[1];
4664 u8 *next_hop = NULL;
4666 if (!info->attrs[NL80211_ATTR_MAC])
4669 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4672 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4673 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4675 if (!rdev->ops->add_mpath)
4678 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4681 return rdev_add_mpath(rdev, dev, dst, next_hop);
4684 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4687 struct net_device *dev = info->user_ptr[1];
4690 if (info->attrs[NL80211_ATTR_MAC])
4691 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4693 if (!rdev->ops->del_mpath)
4696 return rdev_del_mpath(rdev, dev, dst);
4699 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4701 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4703 struct net_device *dev = info->user_ptr[1];
4704 struct mpath_info pinfo;
4705 struct sk_buff *msg;
4709 memset(&pinfo, 0, sizeof(pinfo));
4711 if (!info->attrs[NL80211_ATTR_MAC])
4714 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4716 if (!rdev->ops->get_mpp)
4719 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4722 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4726 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4730 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4731 dev, dst, mpp, &pinfo) < 0) {
4736 return genlmsg_reply(msg, info);
4739 static int nl80211_dump_mpp(struct sk_buff *skb,
4740 struct netlink_callback *cb)
4742 struct mpath_info pinfo;
4743 struct cfg80211_registered_device *rdev;
4744 struct wireless_dev *wdev;
4747 int path_idx = cb->args[2];
4750 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4754 if (!rdev->ops->dump_mpp) {
4759 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4765 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4772 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4773 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4774 wdev->netdev, dst, mpp,
4782 cb->args[2] = path_idx;
4785 nl80211_finish_wdev_dump(rdev);
4789 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4792 struct net_device *dev = info->user_ptr[1];
4793 struct wireless_dev *wdev = dev->ieee80211_ptr;
4794 struct bss_parameters params;
4797 memset(¶ms, 0, sizeof(params));
4798 /* default to not changing parameters */
4799 params.use_cts_prot = -1;
4800 params.use_short_preamble = -1;
4801 params.use_short_slot_time = -1;
4802 params.ap_isolate = -1;
4803 params.ht_opmode = -1;
4804 params.p2p_ctwindow = -1;
4805 params.p2p_opp_ps = -1;
4807 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4808 params.use_cts_prot =
4809 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4810 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4811 params.use_short_preamble =
4812 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4813 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4814 params.use_short_slot_time =
4815 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4816 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4817 params.basic_rates =
4818 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4819 params.basic_rates_len =
4820 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4822 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4823 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4824 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4826 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4828 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4829 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4831 params.p2p_ctwindow =
4832 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4833 if (params.p2p_ctwindow < 0)
4835 if (params.p2p_ctwindow != 0 &&
4836 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4840 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4843 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4845 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4848 params.p2p_opp_ps = tmp;
4849 if (params.p2p_opp_ps &&
4850 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4854 if (!rdev->ops->change_bss)
4857 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4858 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4862 err = rdev_change_bss(rdev, dev, ¶ms);
4868 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4869 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4870 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4871 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4872 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4873 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4874 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4875 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4878 static int parse_reg_rule(struct nlattr *tb[],
4879 struct ieee80211_reg_rule *reg_rule)
4881 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4882 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4884 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4886 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4888 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4890 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4892 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4895 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4897 freq_range->start_freq_khz =
4898 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4899 freq_range->end_freq_khz =
4900 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4901 freq_range->max_bandwidth_khz =
4902 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4904 power_rule->max_eirp =
4905 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4907 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4908 power_rule->max_antenna_gain =
4909 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4911 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4912 reg_rule->dfs_cac_ms =
4913 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4918 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4921 enum nl80211_user_reg_hint_type user_reg_hint_type;
4924 * You should only get this when cfg80211 hasn't yet initialized
4925 * completely when built-in to the kernel right between the time
4926 * window between nl80211_init() and regulatory_init(), if that is
4929 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4930 return -EINPROGRESS;
4932 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4933 user_reg_hint_type =
4934 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4936 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4938 switch (user_reg_hint_type) {
4939 case NL80211_USER_REG_HINT_USER:
4940 case NL80211_USER_REG_HINT_CELL_BASE:
4941 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4944 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4945 return regulatory_hint_user(data, user_reg_hint_type);
4946 case NL80211_USER_REG_HINT_INDOOR:
4947 return regulatory_hint_indoor_user();
4953 static int nl80211_get_mesh_config(struct sk_buff *skb,
4954 struct genl_info *info)
4956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4957 struct net_device *dev = info->user_ptr[1];
4958 struct wireless_dev *wdev = dev->ieee80211_ptr;
4959 struct mesh_config cur_params;
4962 struct nlattr *pinfoattr;
4963 struct sk_buff *msg;
4965 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4968 if (!rdev->ops->get_mesh_config)
4972 /* If not connected, get default parameters */
4973 if (!wdev->mesh_id_len)
4974 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4976 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4982 /* Draw up a netlink message to send back */
4983 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4986 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4987 NL80211_CMD_GET_MESH_CONFIG);
4990 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4992 goto nla_put_failure;
4993 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4994 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4995 cur_params.dot11MeshRetryTimeout) ||
4996 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4997 cur_params.dot11MeshConfirmTimeout) ||
4998 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4999 cur_params.dot11MeshHoldingTimeout) ||
5000 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5001 cur_params.dot11MeshMaxPeerLinks) ||
5002 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5003 cur_params.dot11MeshMaxRetries) ||
5004 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5005 cur_params.dot11MeshTTL) ||
5006 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5007 cur_params.element_ttl) ||
5008 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5009 cur_params.auto_open_plinks) ||
5010 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5011 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5012 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5013 cur_params.dot11MeshHWMPmaxPREQretries) ||
5014 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5015 cur_params.path_refresh_time) ||
5016 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5017 cur_params.min_discovery_timeout) ||
5018 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5019 cur_params.dot11MeshHWMPactivePathTimeout) ||
5020 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5021 cur_params.dot11MeshHWMPpreqMinInterval) ||
5022 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5023 cur_params.dot11MeshHWMPperrMinInterval) ||
5024 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5025 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5026 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5027 cur_params.dot11MeshHWMPRootMode) ||
5028 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5029 cur_params.dot11MeshHWMPRannInterval) ||
5030 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5031 cur_params.dot11MeshGateAnnouncementProtocol) ||
5032 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5033 cur_params.dot11MeshForwarding) ||
5034 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5035 cur_params.rssi_threshold) ||
5036 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5037 cur_params.ht_opmode) ||
5038 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5039 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5040 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5041 cur_params.dot11MeshHWMProotInterval) ||
5042 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5043 cur_params.dot11MeshHWMPconfirmationInterval) ||
5044 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5045 cur_params.power_mode) ||
5046 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5047 cur_params.dot11MeshAwakeWindowDuration) ||
5048 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5049 cur_params.plink_timeout))
5050 goto nla_put_failure;
5051 nla_nest_end(msg, pinfoattr);
5052 genlmsg_end(msg, hdr);
5053 return genlmsg_reply(msg, info);
5056 genlmsg_cancel(msg, hdr);
5062 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5063 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5064 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5065 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5066 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5067 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5068 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5069 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5070 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5071 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5072 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5073 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5074 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5075 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5076 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5077 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5078 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5079 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5080 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5081 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5082 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5083 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5084 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5085 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5086 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5087 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5088 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5089 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5090 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5093 static const struct nla_policy
5094 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5095 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5096 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5097 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5098 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5099 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5100 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5101 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5102 .len = IEEE80211_MAX_DATA_LEN },
5103 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5106 static int nl80211_parse_mesh_config(struct genl_info *info,
5107 struct mesh_config *cfg,
5110 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5113 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5116 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5118 cfg->param = fn(tb[attr]); \
5119 mask |= (1 << (attr - 1)); \
5124 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5126 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5127 info->attrs[NL80211_ATTR_MESH_CONFIG],
5128 nl80211_meshconf_params_policy))
5131 /* This makes sure that there aren't more than 32 mesh config
5132 * parameters (otherwise our bitfield scheme would not work.) */
5133 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5135 /* Fill in the params struct */
5136 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5137 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5139 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5140 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5142 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5143 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5145 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5146 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5148 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5149 mask, NL80211_MESHCONF_MAX_RETRIES,
5151 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5152 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5153 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5154 mask, NL80211_MESHCONF_ELEMENT_TTL,
5156 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5157 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5159 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5161 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5163 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5164 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5166 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5167 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5169 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5170 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5172 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5174 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5178 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5180 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5182 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5184 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5185 dot11MeshHWMPnetDiameterTraversalTime,
5187 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5189 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5190 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5192 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5193 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5195 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5196 dot11MeshGateAnnouncementProtocol, 0, 1,
5197 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5200 mask, NL80211_MESHCONF_FORWARDING,
5202 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5203 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5206 mask, NL80211_MESHCONF_HT_OPMODE,
5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5210 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5213 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5216 dot11MeshHWMPconfirmationInterval,
5218 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5221 NL80211_MESH_POWER_ACTIVE,
5222 NL80211_MESH_POWER_MAX,
5223 mask, NL80211_MESHCONF_POWER_MODE,
5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5227 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5229 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5236 #undef FILL_IN_MESH_PARAM_IF_SET
5239 static int nl80211_parse_mesh_setup(struct genl_info *info,
5240 struct mesh_setup *setup)
5242 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5243 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5245 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5247 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5248 info->attrs[NL80211_ATTR_MESH_SETUP],
5249 nl80211_mesh_setup_params_policy))
5252 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5253 setup->sync_method =
5254 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5255 IEEE80211_SYNC_METHOD_VENDOR :
5256 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5258 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5259 setup->path_sel_proto =
5260 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5261 IEEE80211_PATH_PROTOCOL_VENDOR :
5262 IEEE80211_PATH_PROTOCOL_HWMP;
5264 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5265 setup->path_metric =
5266 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5267 IEEE80211_PATH_METRIC_VENDOR :
5268 IEEE80211_PATH_METRIC_AIRTIME;
5271 if (tb[NL80211_MESH_SETUP_IE]) {
5272 struct nlattr *ieattr =
5273 tb[NL80211_MESH_SETUP_IE];
5274 if (!is_valid_ie_attr(ieattr))
5276 setup->ie = nla_data(ieattr);
5277 setup->ie_len = nla_len(ieattr);
5279 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5280 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5282 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5283 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5284 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5285 if (setup->is_secure)
5286 setup->user_mpm = true;
5288 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5289 if (!setup->user_mpm)
5292 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5298 static int nl80211_update_mesh_config(struct sk_buff *skb,
5299 struct genl_info *info)
5301 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5302 struct net_device *dev = info->user_ptr[1];
5303 struct wireless_dev *wdev = dev->ieee80211_ptr;
5304 struct mesh_config cfg;
5308 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5311 if (!rdev->ops->update_mesh_config)
5314 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5319 if (!wdev->mesh_id_len)
5323 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5330 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5332 const struct ieee80211_regdomain *regdom;
5333 struct sk_buff *msg;
5335 struct nlattr *nl_reg_rules;
5338 if (!cfg80211_regdomain)
5341 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5345 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5346 NL80211_CMD_GET_REG);
5350 if (reg_last_request_cell_base() &&
5351 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5352 NL80211_USER_REG_HINT_CELL_BASE))
5353 goto nla_put_failure;
5356 regdom = rcu_dereference(cfg80211_regdomain);
5358 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5359 (regdom->dfs_region &&
5360 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5361 goto nla_put_failure_rcu;
5363 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5365 goto nla_put_failure_rcu;
5367 for (i = 0; i < regdom->n_reg_rules; i++) {
5368 struct nlattr *nl_reg_rule;
5369 const struct ieee80211_reg_rule *reg_rule;
5370 const struct ieee80211_freq_range *freq_range;
5371 const struct ieee80211_power_rule *power_rule;
5372 unsigned int max_bandwidth_khz;
5374 reg_rule = ®dom->reg_rules[i];
5375 freq_range = ®_rule->freq_range;
5376 power_rule = ®_rule->power_rule;
5378 nl_reg_rule = nla_nest_start(msg, i);
5380 goto nla_put_failure_rcu;
5382 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5383 if (!max_bandwidth_khz)
5384 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5387 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5389 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5390 freq_range->start_freq_khz) ||
5391 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5392 freq_range->end_freq_khz) ||
5393 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5394 max_bandwidth_khz) ||
5395 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5396 power_rule->max_antenna_gain) ||
5397 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5398 power_rule->max_eirp) ||
5399 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5400 reg_rule->dfs_cac_ms))
5401 goto nla_put_failure_rcu;
5403 nla_nest_end(msg, nl_reg_rule);
5407 nla_nest_end(msg, nl_reg_rules);
5409 genlmsg_end(msg, hdr);
5410 return genlmsg_reply(msg, info);
5412 nla_put_failure_rcu:
5415 genlmsg_cancel(msg, hdr);
5421 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5423 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5424 struct nlattr *nl_reg_rule;
5426 int rem_reg_rules, r;
5427 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5428 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5429 struct ieee80211_regdomain *rd;
5431 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5434 if (!info->attrs[NL80211_ATTR_REG_RULES])
5437 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5439 if (info->attrs[NL80211_ATTR_DFS_REGION])
5440 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5442 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5445 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5449 if (!reg_is_valid_request(alpha2))
5452 size_of_regd = sizeof(struct ieee80211_regdomain) +
5453 num_rules * sizeof(struct ieee80211_reg_rule);
5455 rd = kzalloc(size_of_regd, GFP_KERNEL);
5459 rd->n_reg_rules = num_rules;
5460 rd->alpha2[0] = alpha2[0];
5461 rd->alpha2[1] = alpha2[1];
5464 * Disable DFS master mode if the DFS region was
5465 * not supported or known on this kernel.
5467 if (reg_supported_dfs_region(dfs_region))
5468 rd->dfs_region = dfs_region;
5470 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5472 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5473 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5477 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5483 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5490 /* set_regdom took ownership */
5498 static int validate_scan_freqs(struct nlattr *freqs)
5500 struct nlattr *attr1, *attr2;
5501 int n_channels = 0, tmp1, tmp2;
5503 nla_for_each_nested(attr1, freqs, tmp1) {
5506 * Some hardware has a limited channel list for
5507 * scanning, and it is pretty much nonsensical
5508 * to scan for a channel twice, so disallow that
5509 * and don't require drivers to check that the
5510 * channel list they get isn't longer than what
5511 * they can scan, as long as they can scan all
5512 * the channels they registered at once.
5514 nla_for_each_nested(attr2, freqs, tmp2)
5515 if (attr1 != attr2 &&
5516 nla_get_u32(attr1) == nla_get_u32(attr2))
5523 static int nl80211_parse_random_mac(struct nlattr **attrs,
5524 u8 *mac_addr, u8 *mac_addr_mask)
5528 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5529 memset(mac_addr, 0, ETH_ALEN);
5530 memset(mac_addr_mask, 0, ETH_ALEN);
5532 mac_addr_mask[0] = 0x3;
5537 /* need both or none */
5538 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5541 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5542 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5544 /* don't allow or configure an mcast address */
5545 if (!is_multicast_ether_addr(mac_addr_mask) ||
5546 is_multicast_ether_addr(mac_addr))
5550 * allow users to pass a MAC address that has bits set outside
5551 * of the mask, but don't bother drivers with having to deal
5554 for (i = 0; i < ETH_ALEN; i++)
5555 mac_addr[i] &= mac_addr_mask[i];
5560 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5563 struct wireless_dev *wdev = info->user_ptr[1];
5564 struct cfg80211_scan_request *request;
5565 struct nlattr *attr;
5566 struct wiphy *wiphy;
5567 int err, tmp, n_ssids = 0, n_channels, i;
5570 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5573 wiphy = &rdev->wiphy;
5575 if (!rdev->ops->scan)
5578 if (rdev->scan_req || rdev->scan_msg) {
5583 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5584 n_channels = validate_scan_freqs(
5585 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5591 n_channels = ieee80211_get_num_supported_channels(wiphy);
5594 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5595 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5598 if (n_ssids > wiphy->max_scan_ssids) {
5603 if (info->attrs[NL80211_ATTR_IE])
5604 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5608 if (ie_len > wiphy->max_scan_ie_len) {
5613 request = kzalloc(sizeof(*request)
5614 + sizeof(*request->ssids) * n_ssids
5615 + sizeof(*request->channels) * n_channels
5616 + ie_len, GFP_KERNEL);
5623 request->ssids = (void *)&request->channels[n_channels];
5624 request->n_ssids = n_ssids;
5627 request->ie = (void *)(request->ssids + n_ssids);
5629 request->ie = (void *)(request->channels + n_channels);
5633 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5634 /* user specified, bail out if channel not found */
5635 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5636 struct ieee80211_channel *chan;
5638 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5645 /* ignore disabled channels */
5646 if (chan->flags & IEEE80211_CHAN_DISABLED)
5649 request->channels[i] = chan;
5653 enum ieee80211_band band;
5656 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5658 if (!wiphy->bands[band])
5660 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5661 struct ieee80211_channel *chan;
5663 chan = &wiphy->bands[band]->channels[j];
5665 if (chan->flags & IEEE80211_CHAN_DISABLED)
5668 request->channels[i] = chan;
5679 request->n_channels = i;
5682 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5683 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5684 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5688 request->ssids[i].ssid_len = nla_len(attr);
5689 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5694 if (info->attrs[NL80211_ATTR_IE]) {
5695 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5696 memcpy((void *)request->ie,
5697 nla_data(info->attrs[NL80211_ATTR_IE]),
5701 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5702 if (wiphy->bands[i])
5704 (1 << wiphy->bands[i]->n_bitrates) - 1;
5706 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5707 nla_for_each_nested(attr,
5708 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5710 enum ieee80211_band band = nla_type(attr);
5712 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5717 if (!wiphy->bands[band])
5720 err = ieee80211_get_ratemask(wiphy->bands[band],
5723 &request->rates[band]);
5729 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5730 request->flags = nla_get_u32(
5731 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5732 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5733 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5738 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5739 if (!(wiphy->features &
5740 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5745 if (wdev->current_bss) {
5750 err = nl80211_parse_random_mac(info->attrs,
5752 request->mac_addr_mask);
5759 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5761 request->wdev = wdev;
5762 request->wiphy = &rdev->wiphy;
5763 request->scan_start = jiffies;
5765 rdev->scan_req = request;
5766 err = rdev_scan(rdev, request);
5769 nl80211_send_scan_start(rdev, wdev);
5771 dev_hold(wdev->netdev);
5774 rdev->scan_req = NULL;
5782 static struct cfg80211_sched_scan_request *
5783 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
5784 struct nlattr **attrs)
5786 struct cfg80211_sched_scan_request *request;
5787 struct nlattr *attr;
5788 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5790 enum ieee80211_band band;
5792 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5793 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5795 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5796 return ERR_PTR(-EINVAL);
5798 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5799 return ERR_PTR(-EINVAL);
5801 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5803 return ERR_PTR(-EINVAL);
5805 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5806 n_channels = validate_scan_freqs(
5807 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5809 return ERR_PTR(-EINVAL);
5811 n_channels = ieee80211_get_num_supported_channels(wiphy);
5814 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5815 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
5819 if (n_ssids > wiphy->max_sched_scan_ssids)
5820 return ERR_PTR(-EINVAL);
5823 * First, count the number of 'real' matchsets. Due to an issue with
5824 * the old implementation, matchsets containing only the RSSI attribute
5825 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5826 * RSSI for all matchsets, rather than their own matchset for reporting
5827 * all APs with a strong RSSI. This is needed to be compatible with
5828 * older userspace that treated a matchset with only the RSSI as the
5829 * global RSSI for all other matchsets - if there are other matchsets.
5831 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5832 nla_for_each_nested(attr,
5833 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5835 struct nlattr *rssi;
5837 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5838 nla_data(attr), nla_len(attr),
5839 nl80211_match_policy);
5841 return ERR_PTR(err);
5842 /* add other standalone attributes here */
5843 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5847 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5849 default_match_rssi = nla_get_s32(rssi);
5853 /* However, if there's no other matchset, add the RSSI one */
5854 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5857 if (n_match_sets > wiphy->max_match_sets)
5858 return ERR_PTR(-EINVAL);
5860 if (attrs[NL80211_ATTR_IE])
5861 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
5865 if (ie_len > wiphy->max_sched_scan_ie_len)
5866 return ERR_PTR(-EINVAL);
5868 request = kzalloc(sizeof(*request)
5869 + sizeof(*request->ssids) * n_ssids
5870 + sizeof(*request->match_sets) * n_match_sets
5871 + sizeof(*request->channels) * n_channels
5872 + ie_len, GFP_KERNEL);
5874 return ERR_PTR(-ENOMEM);
5877 request->ssids = (void *)&request->channels[n_channels];
5878 request->n_ssids = n_ssids;
5881 request->ie = (void *)(request->ssids + n_ssids);
5883 request->ie = (void *)(request->channels + n_channels);
5888 request->match_sets = (void *)(request->ie + ie_len);
5889 else if (request->ssids)
5890 request->match_sets =
5891 (void *)(request->ssids + n_ssids);
5893 request->match_sets =
5894 (void *)(request->channels + n_channels);
5896 request->n_match_sets = n_match_sets;
5899 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5900 /* user specified, bail out if channel not found */
5901 nla_for_each_nested(attr,
5902 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5904 struct ieee80211_channel *chan;
5906 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5913 /* ignore disabled channels */
5914 if (chan->flags & IEEE80211_CHAN_DISABLED)
5917 request->channels[i] = chan;
5922 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5924 if (!wiphy->bands[band])
5926 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5927 struct ieee80211_channel *chan;
5929 chan = &wiphy->bands[band]->channels[j];
5931 if (chan->flags & IEEE80211_CHAN_DISABLED)
5934 request->channels[i] = chan;
5945 request->n_channels = i;
5948 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
5949 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
5951 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5955 request->ssids[i].ssid_len = nla_len(attr);
5956 memcpy(request->ssids[i].ssid, nla_data(attr),
5963 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5964 nla_for_each_nested(attr,
5965 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5967 struct nlattr *ssid, *rssi;
5969 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5970 nla_data(attr), nla_len(attr),
5971 nl80211_match_policy);
5974 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5976 if (WARN_ON(i >= n_match_sets)) {
5977 /* this indicates a programming error,
5978 * the loop above should have verified
5985 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5989 memcpy(request->match_sets[i].ssid.ssid,
5990 nla_data(ssid), nla_len(ssid));
5991 request->match_sets[i].ssid.ssid_len =
5993 /* special attribute - old implemenation w/a */
5994 request->match_sets[i].rssi_thold =
5996 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5998 request->match_sets[i].rssi_thold =
6004 /* there was no other matchset, so the RSSI one is alone */
6005 if (i == 0 && n_match_sets)
6006 request->match_sets[0].rssi_thold = default_match_rssi;
6008 request->min_rssi_thold = INT_MAX;
6009 for (i = 0; i < n_match_sets; i++)
6010 request->min_rssi_thold =
6011 min(request->match_sets[i].rssi_thold,
6012 request->min_rssi_thold);
6014 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6018 request->ie_len = ie_len;
6019 memcpy((void *)request->ie,
6020 nla_data(attrs[NL80211_ATTR_IE]),
6024 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6025 request->flags = nla_get_u32(
6026 attrs[NL80211_ATTR_SCAN_FLAGS]);
6027 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6028 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6033 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6034 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6036 if (!wdev) /* must be net-detect */
6037 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6039 if (!(wiphy->features & flg)) {
6044 if (wdev && wdev->current_bss) {
6049 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6050 request->mac_addr_mask);
6056 request->interval = interval;
6057 request->scan_start = jiffies;
6063 return ERR_PTR(err);
6066 static int nl80211_start_sched_scan(struct sk_buff *skb,
6067 struct genl_info *info)
6069 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6070 struct net_device *dev = info->user_ptr[1];
6071 struct wireless_dev *wdev = dev->ieee80211_ptr;
6074 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6075 !rdev->ops->sched_scan_start)
6078 if (rdev->sched_scan_req)
6079 return -EINPROGRESS;
6081 rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6083 err = PTR_ERR_OR_ZERO(rdev->sched_scan_req);
6087 err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req);
6091 rdev->sched_scan_req->dev = dev;
6092 rdev->sched_scan_req->wiphy = &rdev->wiphy;
6094 nl80211_send_sched_scan(rdev, dev,
6095 NL80211_CMD_START_SCHED_SCAN);
6099 kfree(rdev->sched_scan_req);
6101 rdev->sched_scan_req = NULL;
6105 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6106 struct genl_info *info)
6108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6110 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6111 !rdev->ops->sched_scan_stop)
6114 return __cfg80211_stop_sched_scan(rdev, false);
6117 static int nl80211_start_radar_detection(struct sk_buff *skb,
6118 struct genl_info *info)
6120 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6121 struct net_device *dev = info->user_ptr[1];
6122 struct wireless_dev *wdev = dev->ieee80211_ptr;
6123 struct cfg80211_chan_def chandef;
6124 enum nl80211_dfs_regions dfs_region;
6125 unsigned int cac_time_ms;
6128 dfs_region = reg_get_dfs_region(wdev->wiphy);
6129 if (dfs_region == NL80211_DFS_UNSET)
6132 err = nl80211_parse_chandef(rdev, info, &chandef);
6136 if (netif_carrier_ok(dev))
6139 if (wdev->cac_started)
6142 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6150 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6153 if (!rdev->ops->start_radar_detection)
6156 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6157 if (WARN_ON(!cac_time_ms))
6158 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6160 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6163 wdev->chandef = chandef;
6164 wdev->cac_started = true;
6165 wdev->cac_start_time = jiffies;
6166 wdev->cac_time_ms = cac_time_ms;
6171 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6173 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6174 struct net_device *dev = info->user_ptr[1];
6175 struct wireless_dev *wdev = dev->ieee80211_ptr;
6176 struct cfg80211_csa_settings params;
6177 /* csa_attrs is defined static to avoid waste of stack size - this
6178 * function is called under RTNL lock, so this should not be a problem.
6180 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6182 bool need_new_beacon = false;
6186 if (!rdev->ops->channel_switch ||
6187 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6190 switch (dev->ieee80211_ptr->iftype) {
6191 case NL80211_IFTYPE_AP:
6192 case NL80211_IFTYPE_P2P_GO:
6193 need_new_beacon = true;
6195 /* useless if AP is not running */
6196 if (!wdev->beacon_interval)
6199 case NL80211_IFTYPE_ADHOC:
6200 if (!wdev->ssid_len)
6203 case NL80211_IFTYPE_MESH_POINT:
6204 if (!wdev->mesh_id_len)
6211 memset(¶ms, 0, sizeof(params));
6213 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6214 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6217 /* only important for AP, IBSS and mesh create IEs internally */
6218 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6221 /* Even though the attribute is u32, the specification says
6222 * u8, so let's make sure we don't overflow.
6224 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6228 params.count = cs_count;
6230 if (!need_new_beacon)
6233 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6237 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6238 info->attrs[NL80211_ATTR_CSA_IES],
6243 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6247 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6250 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6251 if (!len || (len % sizeof(u16)))
6254 params.n_counter_offsets_beacon = len / sizeof(u16);
6255 if (rdev->wiphy.max_num_csa_counters &&
6256 (params.n_counter_offsets_beacon >
6257 rdev->wiphy.max_num_csa_counters))
6260 params.counter_offsets_beacon =
6261 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6263 /* sanity checks - counters should fit and be the same */
6264 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6265 u16 offset = params.counter_offsets_beacon[i];
6267 if (offset >= params.beacon_csa.tail_len)
6270 if (params.beacon_csa.tail[offset] != params.count)
6274 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6275 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6276 if (!len || (len % sizeof(u16)))
6279 params.n_counter_offsets_presp = len / sizeof(u16);
6280 if (rdev->wiphy.max_num_csa_counters &&
6281 (params.n_counter_offsets_beacon >
6282 rdev->wiphy.max_num_csa_counters))
6285 params.counter_offsets_presp =
6286 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6288 /* sanity checks - counters should fit and be the same */
6289 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6290 u16 offset = params.counter_offsets_presp[i];
6292 if (offset >= params.beacon_csa.probe_resp_len)
6295 if (params.beacon_csa.probe_resp[offset] !=
6302 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6306 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
6310 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6317 params.radar_required = true;
6319 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6320 params.block_tx = true;
6323 err = rdev_channel_switch(rdev, dev, ¶ms);
6329 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6331 struct cfg80211_registered_device *rdev,
6332 struct wireless_dev *wdev,
6333 struct cfg80211_internal_bss *intbss)
6335 struct cfg80211_bss *res = &intbss->pub;
6336 const struct cfg80211_bss_ies *ies;
6340 ASSERT_WDEV_LOCK(wdev);
6342 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6343 NL80211_CMD_NEW_SCAN_RESULTS);
6347 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6349 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6350 goto nla_put_failure;
6352 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6353 goto nla_put_failure;
6354 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6355 goto nla_put_failure;
6357 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6359 goto nla_put_failure;
6360 if ((!is_zero_ether_addr(res->bssid) &&
6361 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6362 goto nla_put_failure;
6365 /* indicate whether we have probe response data or not */
6366 if (rcu_access_pointer(res->proberesp_ies) &&
6367 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6368 goto fail_unlock_rcu;
6370 /* this pointer prefers to be pointed to probe response data
6371 * but is always valid
6373 ies = rcu_dereference(res->ies);
6375 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6376 goto fail_unlock_rcu;
6377 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6378 ies->len, ies->data))
6379 goto fail_unlock_rcu;
6382 /* and this pointer is always (unless driver didn't know) beacon data */
6383 ies = rcu_dereference(res->beacon_ies);
6384 if (ies && ies->from_beacon) {
6385 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6386 goto fail_unlock_rcu;
6387 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6388 ies->len, ies->data))
6389 goto fail_unlock_rcu;
6393 if (res->beacon_interval &&
6394 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6395 goto nla_put_failure;
6396 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6397 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6398 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6399 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6400 jiffies_to_msecs(jiffies - intbss->ts)))
6401 goto nla_put_failure;
6403 switch (rdev->wiphy.signal_type) {
6404 case CFG80211_SIGNAL_TYPE_MBM:
6405 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6406 goto nla_put_failure;
6408 case CFG80211_SIGNAL_TYPE_UNSPEC:
6409 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6410 goto nla_put_failure;
6416 switch (wdev->iftype) {
6417 case NL80211_IFTYPE_P2P_CLIENT:
6418 case NL80211_IFTYPE_STATION:
6419 if (intbss == wdev->current_bss &&
6420 nla_put_u32(msg, NL80211_BSS_STATUS,
6421 NL80211_BSS_STATUS_ASSOCIATED))
6422 goto nla_put_failure;
6424 case NL80211_IFTYPE_ADHOC:
6425 if (intbss == wdev->current_bss &&
6426 nla_put_u32(msg, NL80211_BSS_STATUS,
6427 NL80211_BSS_STATUS_IBSS_JOINED))
6428 goto nla_put_failure;
6434 nla_nest_end(msg, bss);
6436 return genlmsg_end(msg, hdr);
6441 genlmsg_cancel(msg, hdr);
6445 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6447 struct cfg80211_registered_device *rdev;
6448 struct cfg80211_internal_bss *scan;
6449 struct wireless_dev *wdev;
6450 int start = cb->args[2], idx = 0;
6453 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6458 spin_lock_bh(&rdev->bss_lock);
6459 cfg80211_bss_expire(rdev);
6461 cb->seq = rdev->bss_generation;
6463 list_for_each_entry(scan, &rdev->bss_list, list) {
6466 if (nl80211_send_bss(skb, cb,
6467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6468 rdev, wdev, scan) < 0) {
6474 spin_unlock_bh(&rdev->bss_lock);
6478 nl80211_finish_wdev_dump(rdev);
6483 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6484 int flags, struct net_device *dev,
6485 struct survey_info *survey)
6488 struct nlattr *infoattr;
6490 hdr = nl80211hdr_put(msg, portid, seq, flags,
6491 NL80211_CMD_NEW_SURVEY_RESULTS);
6495 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6496 goto nla_put_failure;
6498 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6500 goto nla_put_failure;
6502 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6503 survey->channel->center_freq))
6504 goto nla_put_failure;
6506 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6507 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6508 goto nla_put_failure;
6509 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6510 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6511 goto nla_put_failure;
6512 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6513 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6514 survey->channel_time))
6515 goto nla_put_failure;
6516 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6517 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6518 survey->channel_time_busy))
6519 goto nla_put_failure;
6520 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6521 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6522 survey->channel_time_ext_busy))
6523 goto nla_put_failure;
6524 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6525 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6526 survey->channel_time_rx))
6527 goto nla_put_failure;
6528 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6529 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6530 survey->channel_time_tx))
6531 goto nla_put_failure;
6533 nla_nest_end(msg, infoattr);
6535 return genlmsg_end(msg, hdr);
6538 genlmsg_cancel(msg, hdr);
6542 static int nl80211_dump_survey(struct sk_buff *skb,
6543 struct netlink_callback *cb)
6545 struct survey_info survey;
6546 struct cfg80211_registered_device *rdev;
6547 struct wireless_dev *wdev;
6548 int survey_idx = cb->args[2];
6551 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6555 if (!wdev->netdev) {
6560 if (!rdev->ops->dump_survey) {
6566 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6572 /* Survey without a channel doesn't make sense */
6573 if (!survey.channel) {
6578 if (survey.channel->flags & IEEE80211_CHAN_DISABLED) {
6583 if (nl80211_send_survey(skb,
6584 NETLINK_CB(cb->skb).portid,
6585 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6586 wdev->netdev, &survey) < 0)
6592 cb->args[2] = survey_idx;
6595 nl80211_finish_wdev_dump(rdev);
6599 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6601 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6602 NL80211_WPA_VERSION_2));
6605 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6607 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6608 struct net_device *dev = info->user_ptr[1];
6609 struct ieee80211_channel *chan;
6610 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6611 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6612 enum nl80211_auth_type auth_type;
6613 struct key_parse key;
6614 bool local_state_change;
6616 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6619 if (!info->attrs[NL80211_ATTR_MAC])
6622 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6625 if (!info->attrs[NL80211_ATTR_SSID])
6628 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6631 err = nl80211_parse_key(info, &key);
6636 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6638 if (!key.p.key || !key.p.key_len)
6640 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6641 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6642 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6643 key.p.key_len != WLAN_KEY_LEN_WEP104))
6655 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6656 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6665 if (!rdev->ops->auth)
6668 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6669 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6672 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6673 chan = nl80211_get_valid_chan(&rdev->wiphy,
6674 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6678 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6679 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6681 if (info->attrs[NL80211_ATTR_IE]) {
6682 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6683 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6686 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6687 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6690 if (auth_type == NL80211_AUTHTYPE_SAE &&
6691 !info->attrs[NL80211_ATTR_SAE_DATA])
6694 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6695 if (auth_type != NL80211_AUTHTYPE_SAE)
6697 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6698 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6699 /* need to include at least Auth Transaction and Status Code */
6700 if (sae_data_len < 4)
6704 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6707 * Since we no longer track auth state, ignore
6708 * requests to only change local state.
6710 if (local_state_change)
6713 wdev_lock(dev->ieee80211_ptr);
6714 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6715 ssid, ssid_len, ie, ie_len,
6716 key.p.key, key.p.key_len, key.idx,
6717 sae_data, sae_data_len);
6718 wdev_unlock(dev->ieee80211_ptr);
6722 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6723 struct genl_info *info,
6724 struct cfg80211_crypto_settings *settings,
6727 memset(settings, 0, sizeof(*settings));
6729 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6731 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6733 proto = nla_get_u16(
6734 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6735 settings->control_port_ethertype = cpu_to_be16(proto);
6736 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6739 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6740 settings->control_port_no_encrypt = true;
6742 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6744 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6748 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6749 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6750 settings->n_ciphers_pairwise = len / sizeof(u32);
6752 if (len % sizeof(u32))
6755 if (settings->n_ciphers_pairwise > cipher_limit)
6758 memcpy(settings->ciphers_pairwise, data, len);
6760 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6761 if (!cfg80211_supported_cipher_suite(
6763 settings->ciphers_pairwise[i]))
6767 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6768 settings->cipher_group =
6769 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6770 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6771 settings->cipher_group))
6775 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6776 settings->wpa_versions =
6777 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6778 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6782 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6786 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6787 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6788 settings->n_akm_suites = len / sizeof(u32);
6790 if (len % sizeof(u32))
6793 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6796 memcpy(settings->akm_suites, data, len);
6802 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6805 struct net_device *dev = info->user_ptr[1];
6806 struct ieee80211_channel *chan;
6807 struct cfg80211_assoc_request req = {};
6808 const u8 *bssid, *ssid;
6809 int err, ssid_len = 0;
6811 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6814 if (!info->attrs[NL80211_ATTR_MAC] ||
6815 !info->attrs[NL80211_ATTR_SSID] ||
6816 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6819 if (!rdev->ops->assoc)
6822 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6823 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6826 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6828 chan = nl80211_get_valid_chan(&rdev->wiphy,
6829 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6833 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6834 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6836 if (info->attrs[NL80211_ATTR_IE]) {
6837 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6838 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6841 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6842 enum nl80211_mfp mfp =
6843 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6844 if (mfp == NL80211_MFP_REQUIRED)
6846 else if (mfp != NL80211_MFP_NO)
6850 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6851 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6853 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6854 req.flags |= ASSOC_REQ_DISABLE_HT;
6856 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6857 memcpy(&req.ht_capa_mask,
6858 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6859 sizeof(req.ht_capa_mask));
6861 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6862 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6864 memcpy(&req.ht_capa,
6865 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6866 sizeof(req.ht_capa));
6869 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6870 req.flags |= ASSOC_REQ_DISABLE_VHT;
6872 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6873 memcpy(&req.vht_capa_mask,
6874 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6875 sizeof(req.vht_capa_mask));
6877 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6878 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6880 memcpy(&req.vht_capa,
6881 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6882 sizeof(req.vht_capa));
6885 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6886 if (!(rdev->wiphy.features &
6887 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6888 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6890 req.flags |= ASSOC_REQ_USE_RRM;
6893 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6895 wdev_lock(dev->ieee80211_ptr);
6896 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6897 ssid, ssid_len, &req);
6898 wdev_unlock(dev->ieee80211_ptr);
6904 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6906 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6907 struct net_device *dev = info->user_ptr[1];
6908 const u8 *ie = NULL, *bssid;
6909 int ie_len = 0, err;
6911 bool local_state_change;
6913 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6916 if (!info->attrs[NL80211_ATTR_MAC])
6919 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6922 if (!rdev->ops->deauth)
6925 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6929 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6931 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6932 if (reason_code == 0) {
6933 /* Reason Code 0 is reserved */
6937 if (info->attrs[NL80211_ATTR_IE]) {
6938 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6939 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6942 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6944 wdev_lock(dev->ieee80211_ptr);
6945 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6946 local_state_change);
6947 wdev_unlock(dev->ieee80211_ptr);
6951 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6954 struct net_device *dev = info->user_ptr[1];
6955 const u8 *ie = NULL, *bssid;
6956 int ie_len = 0, err;
6958 bool local_state_change;
6960 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6963 if (!info->attrs[NL80211_ATTR_MAC])
6966 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6969 if (!rdev->ops->disassoc)
6972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6976 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6978 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6979 if (reason_code == 0) {
6980 /* Reason Code 0 is reserved */
6984 if (info->attrs[NL80211_ATTR_IE]) {
6985 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6986 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6989 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6991 wdev_lock(dev->ieee80211_ptr);
6992 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6993 local_state_change);
6994 wdev_unlock(dev->ieee80211_ptr);
6999 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7000 int mcast_rate[IEEE80211_NUM_BANDS],
7003 struct wiphy *wiphy = &rdev->wiphy;
7007 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7008 struct ieee80211_supported_band *sband;
7010 sband = wiphy->bands[band];
7014 for (i = 0; i < sband->n_bitrates; i++) {
7015 if (sband->bitrates[i].bitrate == rateval) {
7016 mcast_rate[band] = i + 1;
7026 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7028 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7029 struct net_device *dev = info->user_ptr[1];
7030 struct cfg80211_ibss_params ibss;
7031 struct wiphy *wiphy;
7032 struct cfg80211_cached_keys *connkeys = NULL;
7035 memset(&ibss, 0, sizeof(ibss));
7037 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7040 if (!info->attrs[NL80211_ATTR_SSID] ||
7041 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7044 ibss.beacon_interval = 100;
7046 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7047 ibss.beacon_interval =
7048 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7049 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7053 if (!rdev->ops->join_ibss)
7056 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7059 wiphy = &rdev->wiphy;
7061 if (info->attrs[NL80211_ATTR_MAC]) {
7062 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7064 if (!is_valid_ether_addr(ibss.bssid))
7067 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7068 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7070 if (info->attrs[NL80211_ATTR_IE]) {
7071 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7072 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7075 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7079 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7080 NL80211_IFTYPE_ADHOC))
7083 switch (ibss.chandef.width) {
7084 case NL80211_CHAN_WIDTH_5:
7085 case NL80211_CHAN_WIDTH_10:
7086 case NL80211_CHAN_WIDTH_20_NOHT:
7088 case NL80211_CHAN_WIDTH_20:
7089 case NL80211_CHAN_WIDTH_40:
7090 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7096 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7097 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7099 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7101 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7103 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7104 struct ieee80211_supported_band *sband =
7105 wiphy->bands[ibss.chandef.chan->band];
7107 err = ieee80211_get_ratemask(sband, rates, n_rates,
7113 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7114 memcpy(&ibss.ht_capa_mask,
7115 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7116 sizeof(ibss.ht_capa_mask));
7118 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7119 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7121 memcpy(&ibss.ht_capa,
7122 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7123 sizeof(ibss.ht_capa));
7126 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7127 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7128 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7131 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7134 connkeys = nl80211_parse_connkeys(rdev,
7135 info->attrs[NL80211_ATTR_KEYS],
7137 if (IS_ERR(connkeys))
7138 return PTR_ERR(connkeys);
7140 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7148 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7150 ibss.userspace_handles_dfs =
7151 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7153 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7159 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7162 struct net_device *dev = info->user_ptr[1];
7164 if (!rdev->ops->leave_ibss)
7167 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7170 return cfg80211_leave_ibss(rdev, dev, false);
7173 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7176 struct net_device *dev = info->user_ptr[1];
7177 int mcast_rate[IEEE80211_NUM_BANDS];
7181 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7182 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7185 if (!rdev->ops->set_mcast_rate)
7188 memset(mcast_rate, 0, sizeof(mcast_rate));
7190 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7193 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7194 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7197 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7202 static struct sk_buff *
7203 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7204 int approxlen, u32 portid, u32 seq,
7205 enum nl80211_commands cmd,
7206 enum nl80211_attrs attr,
7207 const struct nl80211_vendor_cmd_info *info,
7210 struct sk_buff *skb;
7212 struct nlattr *data;
7214 skb = nlmsg_new(approxlen + 100, gfp);
7218 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7224 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7225 goto nla_put_failure;
7228 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7230 goto nla_put_failure;
7231 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7233 goto nla_put_failure;
7236 data = nla_nest_start(skb, attr);
7238 ((void **)skb->cb)[0] = rdev;
7239 ((void **)skb->cb)[1] = hdr;
7240 ((void **)skb->cb)[2] = data;
7249 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7250 enum nl80211_commands cmd,
7251 enum nl80211_attrs attr,
7252 int vendor_event_idx,
7253 int approxlen, gfp_t gfp)
7255 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7256 const struct nl80211_vendor_cmd_info *info;
7259 case NL80211_CMD_TESTMODE:
7260 if (WARN_ON(vendor_event_idx != -1))
7264 case NL80211_CMD_VENDOR:
7265 if (WARN_ON(vendor_event_idx < 0 ||
7266 vendor_event_idx >= wiphy->n_vendor_events))
7268 info = &wiphy->vendor_events[vendor_event_idx];
7275 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7276 cmd, attr, info, gfp);
7278 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7280 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7282 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7283 void *hdr = ((void **)skb->cb)[1];
7284 struct nlattr *data = ((void **)skb->cb)[2];
7285 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7287 /* clear CB data for netlink core to own from now on */
7288 memset(skb->cb, 0, sizeof(skb->cb));
7290 nla_nest_end(skb, data);
7291 genlmsg_end(skb, hdr);
7293 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7294 mcgrp = NL80211_MCGRP_VENDOR;
7296 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7299 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7301 #ifdef CONFIG_NL80211_TESTMODE
7302 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7305 struct wireless_dev *wdev =
7306 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7309 if (!rdev->ops->testmode_cmd)
7313 err = PTR_ERR(wdev);
7317 } else if (wdev->wiphy != &rdev->wiphy) {
7321 if (!info->attrs[NL80211_ATTR_TESTDATA])
7324 rdev->cur_cmd_info = info;
7325 err = rdev_testmode_cmd(rdev, wdev,
7326 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7327 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7328 rdev->cur_cmd_info = NULL;
7333 static int nl80211_testmode_dump(struct sk_buff *skb,
7334 struct netlink_callback *cb)
7336 struct cfg80211_registered_device *rdev;
7346 * 0 is a valid index, but not valid for args[0],
7347 * so we need to offset by 1.
7349 phy_idx = cb->args[0] - 1;
7351 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7352 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7357 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7358 nl80211_fam.attrbuf);
7360 err = PTR_ERR(rdev);
7363 phy_idx = rdev->wiphy_idx;
7366 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7368 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7372 data = nla_data((void *)cb->args[1]);
7373 data_len = nla_len((void *)cb->args[1]);
7376 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7382 if (!rdev->ops->testmode_dump) {
7388 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7389 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7390 NL80211_CMD_TESTMODE);
7391 struct nlattr *tmdata;
7396 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7397 genlmsg_cancel(skb, hdr);
7401 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7403 genlmsg_cancel(skb, hdr);
7406 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7407 nla_nest_end(skb, tmdata);
7409 if (err == -ENOBUFS || err == -ENOENT) {
7410 genlmsg_cancel(skb, hdr);
7413 genlmsg_cancel(skb, hdr);
7417 genlmsg_end(skb, hdr);
7422 cb->args[0] = phy_idx + 1;
7429 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7432 struct net_device *dev = info->user_ptr[1];
7433 struct cfg80211_connect_params connect;
7434 struct wiphy *wiphy;
7435 struct cfg80211_cached_keys *connkeys = NULL;
7438 memset(&connect, 0, sizeof(connect));
7440 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7443 if (!info->attrs[NL80211_ATTR_SSID] ||
7444 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7447 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7449 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7450 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7451 NL80211_CMD_CONNECT))
7454 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7456 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7458 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7459 NL80211_MAX_NR_CIPHER_SUITES);
7463 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7464 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7467 wiphy = &rdev->wiphy;
7469 connect.bg_scan_period = -1;
7470 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7471 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7472 connect.bg_scan_period =
7473 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7476 if (info->attrs[NL80211_ATTR_MAC])
7477 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7478 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7479 connect.bssid_hint =
7480 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7481 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7482 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7484 if (info->attrs[NL80211_ATTR_IE]) {
7485 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7486 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7489 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7490 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7491 if (connect.mfp != NL80211_MFP_REQUIRED &&
7492 connect.mfp != NL80211_MFP_NO)
7495 connect.mfp = NL80211_MFP_NO;
7498 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7499 connect.channel = nl80211_get_valid_chan(
7500 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7501 if (!connect.channel)
7503 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7504 connect.channel_hint = nl80211_get_valid_chan(
7505 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7506 if (!connect.channel_hint)
7510 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7511 connkeys = nl80211_parse_connkeys(rdev,
7512 info->attrs[NL80211_ATTR_KEYS], NULL);
7513 if (IS_ERR(connkeys))
7514 return PTR_ERR(connkeys);
7517 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7518 connect.flags |= ASSOC_REQ_DISABLE_HT;
7520 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7521 memcpy(&connect.ht_capa_mask,
7522 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7523 sizeof(connect.ht_capa_mask));
7525 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7526 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7530 memcpy(&connect.ht_capa,
7531 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7532 sizeof(connect.ht_capa));
7535 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7536 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7538 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7539 memcpy(&connect.vht_capa_mask,
7540 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7541 sizeof(connect.vht_capa_mask));
7543 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7544 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7548 memcpy(&connect.vht_capa,
7549 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7550 sizeof(connect.vht_capa));
7553 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7554 if (!(rdev->wiphy.features &
7555 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7556 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7558 connect.flags |= ASSOC_REQ_USE_RRM;
7561 wdev_lock(dev->ieee80211_ptr);
7562 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7563 wdev_unlock(dev->ieee80211_ptr);
7569 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7571 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7572 struct net_device *dev = info->user_ptr[1];
7576 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7577 reason = WLAN_REASON_DEAUTH_LEAVING;
7579 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7584 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7585 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7588 wdev_lock(dev->ieee80211_ptr);
7589 ret = cfg80211_disconnect(rdev, dev, reason, true);
7590 wdev_unlock(dev->ieee80211_ptr);
7594 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7596 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7601 if (!info->attrs[NL80211_ATTR_PID])
7604 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7606 net = get_net_ns_by_pid(pid);
7608 return PTR_ERR(net);
7612 /* check if anything to do */
7613 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7614 err = cfg80211_switch_netns(rdev, net);
7620 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7622 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7623 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7624 struct cfg80211_pmksa *pmksa) = NULL;
7625 struct net_device *dev = info->user_ptr[1];
7626 struct cfg80211_pmksa pmksa;
7628 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7630 if (!info->attrs[NL80211_ATTR_MAC])
7633 if (!info->attrs[NL80211_ATTR_PMKID])
7636 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7637 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7639 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7640 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7643 switch (info->genlhdr->cmd) {
7644 case NL80211_CMD_SET_PMKSA:
7645 rdev_ops = rdev->ops->set_pmksa;
7647 case NL80211_CMD_DEL_PMKSA:
7648 rdev_ops = rdev->ops->del_pmksa;
7658 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7661 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7664 struct net_device *dev = info->user_ptr[1];
7666 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7667 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7670 if (!rdev->ops->flush_pmksa)
7673 return rdev_flush_pmksa(rdev, dev);
7676 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7678 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7679 struct net_device *dev = info->user_ptr[1];
7680 u8 action_code, dialog_token;
7681 u32 peer_capability = 0;
7686 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7687 !rdev->ops->tdls_mgmt)
7690 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7691 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7692 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7693 !info->attrs[NL80211_ATTR_IE] ||
7694 !info->attrs[NL80211_ATTR_MAC])
7697 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7698 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7699 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7700 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7701 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
7702 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7704 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7706 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7707 dialog_token, status_code, peer_capability,
7709 nla_data(info->attrs[NL80211_ATTR_IE]),
7710 nla_len(info->attrs[NL80211_ATTR_IE]));
7713 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7716 struct net_device *dev = info->user_ptr[1];
7717 enum nl80211_tdls_operation operation;
7720 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7721 !rdev->ops->tdls_oper)
7724 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7725 !info->attrs[NL80211_ATTR_MAC])
7728 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7729 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7731 return rdev_tdls_oper(rdev, dev, peer, operation);
7734 static int nl80211_remain_on_channel(struct sk_buff *skb,
7735 struct genl_info *info)
7737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7738 struct wireless_dev *wdev = info->user_ptr[1];
7739 struct cfg80211_chan_def chandef;
7740 struct sk_buff *msg;
7746 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7747 !info->attrs[NL80211_ATTR_DURATION])
7750 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7752 if (!rdev->ops->remain_on_channel ||
7753 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7757 * We should be on that channel for at least a minimum amount of
7758 * time (10ms) but no longer than the driver supports.
7760 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7761 duration > rdev->wiphy.max_remain_on_channel_duration)
7764 err = nl80211_parse_chandef(rdev, info, &chandef);
7768 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7772 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7773 NL80211_CMD_REMAIN_ON_CHANNEL);
7779 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7785 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7786 goto nla_put_failure;
7788 genlmsg_end(msg, hdr);
7790 return genlmsg_reply(msg, info);
7799 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7800 struct genl_info *info)
7802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7803 struct wireless_dev *wdev = info->user_ptr[1];
7806 if (!info->attrs[NL80211_ATTR_COOKIE])
7809 if (!rdev->ops->cancel_remain_on_channel)
7812 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7814 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7817 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7818 u8 *rates, u8 rates_len)
7823 for (i = 0; i < rates_len; i++) {
7824 int rate = (rates[i] & 0x7f) * 5;
7826 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7827 struct ieee80211_rate *srate =
7828 &sband->bitrates[ridx];
7829 if (rate == srate->bitrate) {
7834 if (ridx == sband->n_bitrates)
7835 return 0; /* rate not found */
7841 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7842 u8 *rates, u8 rates_len,
7843 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7847 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7849 for (i = 0; i < rates_len; i++) {
7852 ridx = rates[i] / 8;
7853 rbit = BIT(rates[i] % 8);
7855 /* check validity */
7856 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7859 /* check availability */
7860 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7869 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7873 switch (vht_mcs_map) {
7874 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7876 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7879 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7882 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7892 static void vht_build_mcs_mask(u16 vht_mcs_map,
7893 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7897 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7898 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7903 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7904 struct nl80211_txrate_vht *txrate,
7905 u16 mcs[NL80211_VHT_NSS_MAX])
7907 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7908 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7911 if (!sband->vht_cap.vht_supported)
7914 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7916 /* Build vht_mcs_mask from VHT capabilities */
7917 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7919 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7920 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7921 mcs[i] = txrate->mcs[i];
7929 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7930 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7931 .len = NL80211_MAX_SUPP_RATES },
7932 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7933 .len = NL80211_MAX_SUPP_HT_RATES },
7934 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7935 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7938 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7939 struct genl_info *info)
7941 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7942 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7943 struct cfg80211_bitrate_mask mask;
7945 struct net_device *dev = info->user_ptr[1];
7946 struct nlattr *tx_rates;
7947 struct ieee80211_supported_band *sband;
7950 if (!rdev->ops->set_bitrate_mask)
7953 memset(&mask, 0, sizeof(mask));
7954 /* Default to all rates enabled */
7955 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7956 sband = rdev->wiphy.bands[i];
7961 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7962 memcpy(mask.control[i].ht_mcs,
7963 sband->ht_cap.mcs.rx_mask,
7964 sizeof(mask.control[i].ht_mcs));
7966 if (!sband->vht_cap.vht_supported)
7969 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7970 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7973 /* if no rates are given set it back to the defaults */
7974 if (!info->attrs[NL80211_ATTR_TX_RATES])
7978 * The nested attribute uses enum nl80211_band as the index. This maps
7979 * directly to the enum ieee80211_band values used in cfg80211.
7981 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7982 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7983 enum ieee80211_band band = nla_type(tx_rates);
7986 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7988 sband = rdev->wiphy.bands[band];
7991 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7992 nla_len(tx_rates), nl80211_txattr_policy);
7995 if (tb[NL80211_TXRATE_LEGACY]) {
7996 mask.control[band].legacy = rateset_to_mask(
7998 nla_data(tb[NL80211_TXRATE_LEGACY]),
7999 nla_len(tb[NL80211_TXRATE_LEGACY]));
8000 if ((mask.control[band].legacy == 0) &&
8001 nla_len(tb[NL80211_TXRATE_LEGACY]))
8004 if (tb[NL80211_TXRATE_HT]) {
8005 if (!ht_rateset_to_mask(
8007 nla_data(tb[NL80211_TXRATE_HT]),
8008 nla_len(tb[NL80211_TXRATE_HT]),
8009 mask.control[band].ht_mcs))
8012 if (tb[NL80211_TXRATE_VHT]) {
8013 if (!vht_set_mcs_mask(
8015 nla_data(tb[NL80211_TXRATE_VHT]),
8016 mask.control[band].vht_mcs))
8019 if (tb[NL80211_TXRATE_GI]) {
8020 mask.control[band].gi =
8021 nla_get_u8(tb[NL80211_TXRATE_GI]);
8022 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8026 if (mask.control[band].legacy == 0) {
8027 /* don't allow empty legacy rates if HT or VHT
8028 * are not even supported.
8030 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8031 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8034 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8035 if (mask.control[band].ht_mcs[i])
8038 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8039 if (mask.control[band].vht_mcs[i])
8042 /* legacy and mcs rates may not be both empty */
8048 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8051 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8054 struct wireless_dev *wdev = info->user_ptr[1];
8055 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8057 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8060 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8061 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8063 switch (wdev->iftype) {
8064 case NL80211_IFTYPE_STATION:
8065 case NL80211_IFTYPE_ADHOC:
8066 case NL80211_IFTYPE_P2P_CLIENT:
8067 case NL80211_IFTYPE_AP:
8068 case NL80211_IFTYPE_AP_VLAN:
8069 case NL80211_IFTYPE_MESH_POINT:
8070 case NL80211_IFTYPE_P2P_GO:
8071 case NL80211_IFTYPE_P2P_DEVICE:
8077 /* not much point in registering if we can't reply */
8078 if (!rdev->ops->mgmt_tx)
8081 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8082 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8083 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8086 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8089 struct wireless_dev *wdev = info->user_ptr[1];
8090 struct cfg80211_chan_def chandef;
8094 struct sk_buff *msg = NULL;
8095 struct cfg80211_mgmt_tx_params params = {
8096 .dont_wait_for_ack =
8097 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8100 if (!info->attrs[NL80211_ATTR_FRAME])
8103 if (!rdev->ops->mgmt_tx)
8106 switch (wdev->iftype) {
8107 case NL80211_IFTYPE_P2P_DEVICE:
8108 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8110 case NL80211_IFTYPE_STATION:
8111 case NL80211_IFTYPE_ADHOC:
8112 case NL80211_IFTYPE_P2P_CLIENT:
8113 case NL80211_IFTYPE_AP:
8114 case NL80211_IFTYPE_AP_VLAN:
8115 case NL80211_IFTYPE_MESH_POINT:
8116 case NL80211_IFTYPE_P2P_GO:
8122 if (info->attrs[NL80211_ATTR_DURATION]) {
8123 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8125 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8128 * We should wait on the channel for at least a minimum amount
8129 * of time (10ms) but no longer than the driver supports.
8131 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8132 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8137 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8139 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8142 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8144 /* get the channel if any has been specified, otherwise pass NULL to
8145 * the driver. The latter will use the current one
8147 chandef.chan = NULL;
8148 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8149 err = nl80211_parse_chandef(rdev, info, &chandef);
8154 if (!chandef.chan && params.offchan)
8157 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8158 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8160 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8161 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8164 if (len % sizeof(u16))
8167 params.n_csa_offsets = len / sizeof(u16);
8168 params.csa_offsets =
8169 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8171 /* check that all the offsets fit the frame */
8172 for (i = 0; i < params.n_csa_offsets; i++) {
8173 if (params.csa_offsets[i] >= params.len)
8178 if (!params.dont_wait_for_ack) {
8179 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8183 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8191 params.chan = chandef.chan;
8192 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8197 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8198 goto nla_put_failure;
8200 genlmsg_end(msg, hdr);
8201 return genlmsg_reply(msg, info);
8213 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8216 struct wireless_dev *wdev = info->user_ptr[1];
8219 if (!info->attrs[NL80211_ATTR_COOKIE])
8222 if (!rdev->ops->mgmt_tx_cancel_wait)
8225 switch (wdev->iftype) {
8226 case NL80211_IFTYPE_STATION:
8227 case NL80211_IFTYPE_ADHOC:
8228 case NL80211_IFTYPE_P2P_CLIENT:
8229 case NL80211_IFTYPE_AP:
8230 case NL80211_IFTYPE_AP_VLAN:
8231 case NL80211_IFTYPE_P2P_GO:
8232 case NL80211_IFTYPE_P2P_DEVICE:
8238 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8240 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8243 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8245 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8246 struct wireless_dev *wdev;
8247 struct net_device *dev = info->user_ptr[1];
8252 if (!info->attrs[NL80211_ATTR_PS_STATE])
8255 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8257 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8260 wdev = dev->ieee80211_ptr;
8262 if (!rdev->ops->set_power_mgmt)
8265 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8267 if (state == wdev->ps)
8270 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8276 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8278 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8279 enum nl80211_ps_state ps_state;
8280 struct wireless_dev *wdev;
8281 struct net_device *dev = info->user_ptr[1];
8282 struct sk_buff *msg;
8286 wdev = dev->ieee80211_ptr;
8288 if (!rdev->ops->set_power_mgmt)
8291 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8295 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8296 NL80211_CMD_GET_POWER_SAVE);
8303 ps_state = NL80211_PS_ENABLED;
8305 ps_state = NL80211_PS_DISABLED;
8307 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8308 goto nla_put_failure;
8310 genlmsg_end(msg, hdr);
8311 return genlmsg_reply(msg, info);
8320 static const struct nla_policy
8321 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8322 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8323 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8324 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8325 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8326 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8327 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8330 static int nl80211_set_cqm_txe(struct genl_info *info,
8331 u32 rate, u32 pkts, u32 intvl)
8333 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8334 struct net_device *dev = info->user_ptr[1];
8335 struct wireless_dev *wdev = dev->ieee80211_ptr;
8337 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8340 if (!rdev->ops->set_cqm_txe_config)
8343 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8344 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8347 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8350 static int nl80211_set_cqm_rssi(struct genl_info *info,
8351 s32 threshold, u32 hysteresis)
8353 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8354 struct net_device *dev = info->user_ptr[1];
8355 struct wireless_dev *wdev = dev->ieee80211_ptr;
8360 /* disabling - hysteresis should also be zero then */
8364 if (!rdev->ops->set_cqm_rssi_config)
8367 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8368 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8371 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8374 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8376 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8380 cqm = info->attrs[NL80211_ATTR_CQM];
8384 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8385 nl80211_attr_cqm_policy);
8389 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8390 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8391 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8392 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8394 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8397 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8398 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8399 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8400 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8401 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8402 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8404 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8410 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8412 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8413 struct net_device *dev = info->user_ptr[1];
8414 struct ocb_setup setup = {};
8417 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8421 return cfg80211_join_ocb(rdev, dev, &setup);
8424 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8427 struct net_device *dev = info->user_ptr[1];
8429 return cfg80211_leave_ocb(rdev, dev);
8432 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8435 struct net_device *dev = info->user_ptr[1];
8436 struct mesh_config cfg;
8437 struct mesh_setup setup;
8440 /* start with default */
8441 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8442 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8444 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8445 /* and parse parameters if given */
8446 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8451 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8452 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8455 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8456 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8458 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8459 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8460 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8463 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8464 setup.beacon_interval =
8465 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8466 if (setup.beacon_interval < 10 ||
8467 setup.beacon_interval > 10000)
8471 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8473 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8474 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8478 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8479 /* parse additional setup parameters if given */
8480 err = nl80211_parse_mesh_setup(info, &setup);
8486 cfg.auto_open_plinks = false;
8488 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8489 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8493 /* cfg80211_join_mesh() will sort it out */
8494 setup.chandef.chan = NULL;
8497 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8498 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8500 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8501 struct ieee80211_supported_band *sband;
8503 if (!setup.chandef.chan)
8506 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8508 err = ieee80211_get_ratemask(sband, rates, n_rates,
8509 &setup.basic_rates);
8514 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8517 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8519 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8520 struct net_device *dev = info->user_ptr[1];
8522 return cfg80211_leave_mesh(rdev, dev);
8526 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8527 struct cfg80211_registered_device *rdev)
8529 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8530 struct nlattr *nl_pats, *nl_pat;
8533 if (!wowlan->n_patterns)
8536 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8540 for (i = 0; i < wowlan->n_patterns; i++) {
8541 nl_pat = nla_nest_start(msg, i + 1);
8544 pat_len = wowlan->patterns[i].pattern_len;
8545 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8546 wowlan->patterns[i].mask) ||
8547 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8548 wowlan->patterns[i].pattern) ||
8549 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8550 wowlan->patterns[i].pkt_offset))
8552 nla_nest_end(msg, nl_pat);
8554 nla_nest_end(msg, nl_pats);
8559 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8560 struct cfg80211_wowlan_tcp *tcp)
8562 struct nlattr *nl_tcp;
8567 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8571 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8572 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8573 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8574 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8575 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8576 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8577 tcp->payload_len, tcp->payload) ||
8578 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8579 tcp->data_interval) ||
8580 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8581 tcp->wake_len, tcp->wake_data) ||
8582 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8583 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8586 if (tcp->payload_seq.len &&
8587 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8588 sizeof(tcp->payload_seq), &tcp->payload_seq))
8591 if (tcp->payload_tok.len &&
8592 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8593 sizeof(tcp->payload_tok) + tcp->tokens_size,
8597 nla_nest_end(msg, nl_tcp);
8602 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8604 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8605 struct sk_buff *msg;
8607 u32 size = NLMSG_DEFAULT_SIZE;
8609 if (!rdev->wiphy.wowlan)
8612 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8613 /* adjust size to have room for all the data */
8614 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8615 rdev->wiphy.wowlan_config->tcp->payload_len +
8616 rdev->wiphy.wowlan_config->tcp->wake_len +
8617 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8620 msg = nlmsg_new(size, GFP_KERNEL);
8624 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8625 NL80211_CMD_GET_WOWLAN);
8627 goto nla_put_failure;
8629 if (rdev->wiphy.wowlan_config) {
8630 struct nlattr *nl_wowlan;
8632 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8634 goto nla_put_failure;
8636 if ((rdev->wiphy.wowlan_config->any &&
8637 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8638 (rdev->wiphy.wowlan_config->disconnect &&
8639 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8640 (rdev->wiphy.wowlan_config->magic_pkt &&
8641 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8642 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8643 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8644 (rdev->wiphy.wowlan_config->eap_identity_req &&
8645 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8646 (rdev->wiphy.wowlan_config->four_way_handshake &&
8647 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8648 (rdev->wiphy.wowlan_config->rfkill_release &&
8649 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8650 goto nla_put_failure;
8652 if (nl80211_send_wowlan_patterns(msg, rdev))
8653 goto nla_put_failure;
8655 if (nl80211_send_wowlan_tcp(msg,
8656 rdev->wiphy.wowlan_config->tcp))
8657 goto nla_put_failure;
8659 nla_nest_end(msg, nl_wowlan);
8662 genlmsg_end(msg, hdr);
8663 return genlmsg_reply(msg, info);
8670 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8671 struct nlattr *attr,
8672 struct cfg80211_wowlan *trig)
8674 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8675 struct cfg80211_wowlan_tcp *cfg;
8676 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8677 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8679 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8682 if (!rdev->wiphy.wowlan->tcp)
8685 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8686 nla_data(attr), nla_len(attr),
8687 nl80211_wowlan_tcp_policy);
8691 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8692 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8693 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8694 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8695 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8696 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8697 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8698 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8701 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8702 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8705 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8706 rdev->wiphy.wowlan->tcp->data_interval_max ||
8707 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8710 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8711 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8714 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8715 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8718 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8719 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8721 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8722 tokens_size = tokln - sizeof(*tok);
8724 if (!tok->len || tokens_size % tok->len)
8726 if (!rdev->wiphy.wowlan->tcp->tok)
8728 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8730 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8732 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8734 if (tok->offset + tok->len > data_size)
8738 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8739 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8740 if (!rdev->wiphy.wowlan->tcp->seq)
8742 if (seq->len == 0 || seq->len > 4)
8744 if (seq->len + seq->offset > data_size)
8748 size = sizeof(*cfg);
8750 size += wake_size + wake_mask_size;
8751 size += tokens_size;
8753 cfg = kzalloc(size, GFP_KERNEL);
8756 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8757 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8758 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8760 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8761 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8765 /* allocate a socket and port for it and use it */
8766 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8767 IPPROTO_TCP, &cfg->sock, 1);
8772 if (inet_csk_get_port(cfg->sock->sk, port)) {
8773 sock_release(cfg->sock);
8777 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8783 cfg->src_port = port;
8786 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8787 cfg->payload_len = data_size;
8788 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8789 memcpy((void *)cfg->payload,
8790 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8793 cfg->payload_seq = *seq;
8794 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8795 cfg->wake_len = wake_size;
8796 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8797 memcpy((void *)cfg->wake_data,
8798 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8800 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8801 data_size + wake_size;
8802 memcpy((void *)cfg->wake_mask,
8803 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8806 cfg->tokens_size = tokens_size;
8807 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8815 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8816 const struct wiphy_wowlan_support *wowlan,
8817 struct nlattr *attr,
8818 struct cfg80211_wowlan *trig)
8823 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8827 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8832 err = nla_parse(tb, NL80211_ATTR_MAX,
8833 nla_data(attr), nla_len(attr),
8838 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8839 err = PTR_ERR_OR_ZERO(trig->nd_config);
8841 trig->nd_config = NULL;
8848 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8851 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8852 struct cfg80211_wowlan new_triggers = {};
8853 struct cfg80211_wowlan *ntrig;
8854 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8856 bool prev_enabled = rdev->wiphy.wowlan_config;
8861 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8862 cfg80211_rdev_free_wowlan(rdev);
8863 rdev->wiphy.wowlan_config = NULL;
8867 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8868 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8869 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8870 nl80211_wowlan_policy);
8874 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8875 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8877 new_triggers.any = true;
8880 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8881 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8883 new_triggers.disconnect = true;
8886 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8887 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8889 new_triggers.magic_pkt = true;
8892 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8895 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8896 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8898 new_triggers.gtk_rekey_failure = true;
8901 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8902 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8904 new_triggers.eap_identity_req = true;
8907 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8908 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8910 new_triggers.four_way_handshake = true;
8913 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8914 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8916 new_triggers.rfkill_release = true;
8919 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8922 int rem, pat_len, mask_len, pkt_offset;
8923 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8925 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8928 if (n_patterns > wowlan->n_patterns)
8931 new_triggers.patterns = kcalloc(n_patterns,
8932 sizeof(new_triggers.patterns[0]),
8934 if (!new_triggers.patterns)
8937 new_triggers.n_patterns = n_patterns;
8940 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8944 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8945 nla_len(pat), NULL);
8947 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8948 !pat_tb[NL80211_PKTPAT_PATTERN])
8950 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8951 mask_len = DIV_ROUND_UP(pat_len, 8);
8952 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8954 if (pat_len > wowlan->pattern_max_len ||
8955 pat_len < wowlan->pattern_min_len)
8958 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8961 pkt_offset = nla_get_u32(
8962 pat_tb[NL80211_PKTPAT_OFFSET]);
8963 if (pkt_offset > wowlan->max_pkt_offset)
8965 new_triggers.patterns[i].pkt_offset = pkt_offset;
8967 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8972 new_triggers.patterns[i].mask = mask_pat;
8973 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8975 mask_pat += mask_len;
8976 new_triggers.patterns[i].pattern = mask_pat;
8977 new_triggers.patterns[i].pattern_len = pat_len;
8979 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8985 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8986 err = nl80211_parse_wowlan_tcp(
8987 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8993 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
8994 err = nl80211_parse_wowlan_nd(
8995 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9001 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9006 cfg80211_rdev_free_wowlan(rdev);
9007 rdev->wiphy.wowlan_config = ntrig;
9010 if (rdev->ops->set_wakeup &&
9011 prev_enabled != !!rdev->wiphy.wowlan_config)
9012 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9016 for (i = 0; i < new_triggers.n_patterns; i++)
9017 kfree(new_triggers.patterns[i].mask);
9018 kfree(new_triggers.patterns);
9019 if (new_triggers.tcp && new_triggers.tcp->sock)
9020 sock_release(new_triggers.tcp->sock);
9021 kfree(new_triggers.tcp);
9026 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9027 struct cfg80211_registered_device *rdev)
9029 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9031 struct cfg80211_coalesce_rules *rule;
9033 if (!rdev->coalesce->n_rules)
9036 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9040 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9041 nl_rule = nla_nest_start(msg, i + 1);
9045 rule = &rdev->coalesce->rules[i];
9046 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9050 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9054 nl_pats = nla_nest_start(msg,
9055 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9059 for (j = 0; j < rule->n_patterns; j++) {
9060 nl_pat = nla_nest_start(msg, j + 1);
9063 pat_len = rule->patterns[j].pattern_len;
9064 if (nla_put(msg, NL80211_PKTPAT_MASK,
9065 DIV_ROUND_UP(pat_len, 8),
9066 rule->patterns[j].mask) ||
9067 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9068 rule->patterns[j].pattern) ||
9069 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9070 rule->patterns[j].pkt_offset))
9072 nla_nest_end(msg, nl_pat);
9074 nla_nest_end(msg, nl_pats);
9075 nla_nest_end(msg, nl_rule);
9077 nla_nest_end(msg, nl_rules);
9082 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9084 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9085 struct sk_buff *msg;
9088 if (!rdev->wiphy.coalesce)
9091 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9095 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9096 NL80211_CMD_GET_COALESCE);
9098 goto nla_put_failure;
9100 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9101 goto nla_put_failure;
9103 genlmsg_end(msg, hdr);
9104 return genlmsg_reply(msg, info);
9111 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9113 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9115 struct cfg80211_coalesce_rules *rule;
9120 for (i = 0; i < coalesce->n_rules; i++) {
9121 rule = &coalesce->rules[i];
9122 for (j = 0; j < rule->n_patterns; j++)
9123 kfree(rule->patterns[j].mask);
9124 kfree(rule->patterns);
9126 kfree(coalesce->rules);
9128 rdev->coalesce = NULL;
9131 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9132 struct nlattr *rule,
9133 struct cfg80211_coalesce_rules *new_rule)
9136 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9137 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9138 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9139 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9141 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9142 nla_len(rule), nl80211_coalesce_policy);
9146 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9148 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9149 if (new_rule->delay > coalesce->max_delay)
9152 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9153 new_rule->condition =
9154 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9155 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9156 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9159 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9162 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9165 if (n_patterns > coalesce->n_patterns)
9168 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9170 if (!new_rule->patterns)
9173 new_rule->n_patterns = n_patterns;
9176 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9180 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9181 nla_len(pat), NULL);
9182 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9183 !pat_tb[NL80211_PKTPAT_PATTERN])
9185 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9186 mask_len = DIV_ROUND_UP(pat_len, 8);
9187 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9189 if (pat_len > coalesce->pattern_max_len ||
9190 pat_len < coalesce->pattern_min_len)
9193 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9196 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9197 if (pkt_offset > coalesce->max_pkt_offset)
9199 new_rule->patterns[i].pkt_offset = pkt_offset;
9201 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9205 new_rule->patterns[i].mask = mask_pat;
9206 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9209 mask_pat += mask_len;
9210 new_rule->patterns[i].pattern = mask_pat;
9211 new_rule->patterns[i].pattern_len = pat_len;
9212 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9220 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9222 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9223 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9224 struct cfg80211_coalesce new_coalesce = {};
9225 struct cfg80211_coalesce *n_coalesce;
9226 int err, rem_rule, n_rules = 0, i, j;
9227 struct nlattr *rule;
9228 struct cfg80211_coalesce_rules *tmp_rule;
9230 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9233 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9234 cfg80211_rdev_free_coalesce(rdev);
9235 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9239 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9242 if (n_rules > coalesce->n_rules)
9245 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9247 if (!new_coalesce.rules)
9250 new_coalesce.n_rules = n_rules;
9253 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9255 err = nl80211_parse_coalesce_rule(rdev, rule,
9256 &new_coalesce.rules[i]);
9263 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9267 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9272 cfg80211_rdev_free_coalesce(rdev);
9273 rdev->coalesce = n_coalesce;
9277 for (i = 0; i < new_coalesce.n_rules; i++) {
9278 tmp_rule = &new_coalesce.rules[i];
9279 for (j = 0; j < tmp_rule->n_patterns; j++)
9280 kfree(tmp_rule->patterns[j].mask);
9281 kfree(tmp_rule->patterns);
9283 kfree(new_coalesce.rules);
9288 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9290 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9291 struct net_device *dev = info->user_ptr[1];
9292 struct wireless_dev *wdev = dev->ieee80211_ptr;
9293 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9294 struct cfg80211_gtk_rekey_data rekey_data;
9297 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9300 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9301 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9302 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9303 nl80211_rekey_policy);
9307 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9309 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9311 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9314 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9315 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9316 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9319 if (!wdev->current_bss) {
9324 if (!rdev->ops->set_rekey_data) {
9329 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9335 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9336 struct genl_info *info)
9338 struct net_device *dev = info->user_ptr[1];
9339 struct wireless_dev *wdev = dev->ieee80211_ptr;
9341 if (wdev->iftype != NL80211_IFTYPE_AP &&
9342 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9345 if (wdev->ap_unexpected_nlportid)
9348 wdev->ap_unexpected_nlportid = info->snd_portid;
9352 static int nl80211_probe_client(struct sk_buff *skb,
9353 struct genl_info *info)
9355 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9356 struct net_device *dev = info->user_ptr[1];
9357 struct wireless_dev *wdev = dev->ieee80211_ptr;
9358 struct sk_buff *msg;
9364 if (wdev->iftype != NL80211_IFTYPE_AP &&
9365 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9368 if (!info->attrs[NL80211_ATTR_MAC])
9371 if (!rdev->ops->probe_client)
9374 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9378 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9379 NL80211_CMD_PROBE_CLIENT);
9385 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9387 err = rdev_probe_client(rdev, dev, addr, &cookie);
9391 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9392 goto nla_put_failure;
9394 genlmsg_end(msg, hdr);
9396 return genlmsg_reply(msg, info);
9405 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9408 struct cfg80211_beacon_registration *reg, *nreg;
9411 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9414 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9418 /* First, check if already registered. */
9419 spin_lock_bh(&rdev->beacon_registrations_lock);
9420 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9421 if (reg->nlportid == info->snd_portid) {
9426 /* Add it to the list */
9427 nreg->nlportid = info->snd_portid;
9428 list_add(&nreg->list, &rdev->beacon_registrations);
9430 spin_unlock_bh(&rdev->beacon_registrations_lock);
9434 spin_unlock_bh(&rdev->beacon_registrations_lock);
9439 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9441 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9442 struct wireless_dev *wdev = info->user_ptr[1];
9445 if (!rdev->ops->start_p2p_device)
9448 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9451 if (wdev->p2p_started)
9454 if (rfkill_blocked(rdev->rfkill))
9457 err = rdev_start_p2p_device(rdev, wdev);
9461 wdev->p2p_started = true;
9467 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9469 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9470 struct wireless_dev *wdev = info->user_ptr[1];
9472 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9475 if (!rdev->ops->stop_p2p_device)
9478 cfg80211_stop_p2p_device(rdev, wdev);
9483 static int nl80211_get_protocol_features(struct sk_buff *skb,
9484 struct genl_info *info)
9487 struct sk_buff *msg;
9489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9493 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9494 NL80211_CMD_GET_PROTOCOL_FEATURES);
9496 goto nla_put_failure;
9498 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9499 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9500 goto nla_put_failure;
9502 genlmsg_end(msg, hdr);
9503 return genlmsg_reply(msg, info);
9510 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9512 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9513 struct cfg80211_update_ft_ies_params ft_params;
9514 struct net_device *dev = info->user_ptr[1];
9516 if (!rdev->ops->update_ft_ies)
9519 if (!info->attrs[NL80211_ATTR_MDID] ||
9520 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9523 memset(&ft_params, 0, sizeof(ft_params));
9524 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9525 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9526 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9528 return rdev_update_ft_ies(rdev, dev, &ft_params);
9531 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9532 struct genl_info *info)
9534 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9535 struct wireless_dev *wdev = info->user_ptr[1];
9536 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9540 if (!rdev->ops->crit_proto_start)
9543 if (WARN_ON(!rdev->ops->crit_proto_stop))
9546 if (rdev->crit_proto_nlportid)
9549 /* determine protocol if provided */
9550 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9551 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9553 if (proto >= NUM_NL80211_CRIT_PROTO)
9556 /* timeout must be provided */
9557 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9561 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9563 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9566 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9568 rdev->crit_proto_nlportid = info->snd_portid;
9573 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9574 struct genl_info *info)
9576 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9577 struct wireless_dev *wdev = info->user_ptr[1];
9579 if (!rdev->ops->crit_proto_stop)
9582 if (rdev->crit_proto_nlportid) {
9583 rdev->crit_proto_nlportid = 0;
9584 rdev_crit_proto_stop(rdev, wdev);
9589 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9592 struct wireless_dev *wdev =
9593 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9597 if (!rdev->wiphy.vendor_commands)
9601 err = PTR_ERR(wdev);
9605 } else if (wdev->wiphy != &rdev->wiphy) {
9609 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9610 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9613 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9614 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9615 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9616 const struct wiphy_vendor_command *vcmd;
9620 vcmd = &rdev->wiphy.vendor_commands[i];
9622 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9625 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9626 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9629 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9633 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9635 !netif_running(wdev->netdev))
9637 if (!wdev->netdev && !wdev->p2p_started)
9644 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9645 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9646 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9649 rdev->cur_cmd_info = info;
9650 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9652 rdev->cur_cmd_info = NULL;
9659 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9660 enum nl80211_commands cmd,
9661 enum nl80211_attrs attr,
9664 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9666 if (WARN_ON(!rdev->cur_cmd_info))
9669 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9670 rdev->cur_cmd_info->snd_portid,
9671 rdev->cur_cmd_info->snd_seq,
9672 cmd, attr, NULL, GFP_KERNEL);
9674 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9676 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9678 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9679 void *hdr = ((void **)skb->cb)[1];
9680 struct nlattr *data = ((void **)skb->cb)[2];
9682 /* clear CB data for netlink core to own from now on */
9683 memset(skb->cb, 0, sizeof(skb->cb));
9685 if (WARN_ON(!rdev->cur_cmd_info)) {
9690 nla_nest_end(skb, data);
9691 genlmsg_end(skb, hdr);
9692 return genlmsg_reply(skb, rdev->cur_cmd_info);
9694 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9697 static int nl80211_set_qos_map(struct sk_buff *skb,
9698 struct genl_info *info)
9700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9701 struct cfg80211_qos_map *qos_map = NULL;
9702 struct net_device *dev = info->user_ptr[1];
9703 u8 *pos, len, num_des, des_len, des;
9706 if (!rdev->ops->set_qos_map)
9709 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9710 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9711 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9713 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9714 len > IEEE80211_QOS_MAP_LEN_MAX)
9717 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9721 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9724 sizeof(struct cfg80211_dscp_exception);
9725 memcpy(qos_map->dscp_exception, pos, des_len);
9726 qos_map->num_des = num_des;
9727 for (des = 0; des < num_des; des++) {
9728 if (qos_map->dscp_exception[des].up > 7) {
9735 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9738 wdev_lock(dev->ieee80211_ptr);
9739 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9741 ret = rdev_set_qos_map(rdev, dev, qos_map);
9742 wdev_unlock(dev->ieee80211_ptr);
9748 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9750 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9751 struct net_device *dev = info->user_ptr[1];
9752 struct wireless_dev *wdev = dev->ieee80211_ptr;
9755 u16 admitted_time = 0;
9758 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
9761 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9762 !info->attrs[NL80211_ATTR_USER_PRIO])
9765 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9766 if (tsid >= IEEE80211_NUM_TIDS)
9769 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9770 if (up >= IEEE80211_NUM_UPS)
9773 /* WMM uses TIDs 0-7 even for TSPEC */
9774 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
9775 /* TODO: handle 802.11 TSPEC/admission control
9776 * need more attributes for that (e.g. BA session requirement);
9777 * change the WMM adminssion test above to allow both then
9782 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9784 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9786 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9792 switch (wdev->iftype) {
9793 case NL80211_IFTYPE_STATION:
9794 case NL80211_IFTYPE_P2P_CLIENT:
9795 if (wdev->current_bss)
9804 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9811 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9814 struct net_device *dev = info->user_ptr[1];
9815 struct wireless_dev *wdev = dev->ieee80211_ptr;
9820 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9823 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9824 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9827 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9833 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9834 struct genl_info *info)
9836 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9837 struct net_device *dev = info->user_ptr[1];
9838 struct wireless_dev *wdev = dev->ieee80211_ptr;
9839 struct cfg80211_chan_def chandef = {};
9844 if (!rdev->ops->tdls_channel_switch ||
9845 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9848 switch (dev->ieee80211_ptr->iftype) {
9849 case NL80211_IFTYPE_STATION:
9850 case NL80211_IFTYPE_P2P_CLIENT:
9856 if (!info->attrs[NL80211_ATTR_MAC] ||
9857 !info->attrs[NL80211_ATTR_OPER_CLASS])
9860 err = nl80211_parse_chandef(rdev, info, &chandef);
9865 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9866 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9867 * specification is not defined for them.
9869 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9870 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9871 chandef.width != NL80211_CHAN_WIDTH_20)
9874 /* we will be active on the TDLS link */
9875 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
9878 /* don't allow switching to DFS channels */
9879 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
9882 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9883 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
9886 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
9892 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
9893 struct genl_info *info)
9895 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9896 struct net_device *dev = info->user_ptr[1];
9897 struct wireless_dev *wdev = dev->ieee80211_ptr;
9900 if (!rdev->ops->tdls_channel_switch ||
9901 !rdev->ops->tdls_cancel_channel_switch ||
9902 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9905 switch (dev->ieee80211_ptr->iftype) {
9906 case NL80211_IFTYPE_STATION:
9907 case NL80211_IFTYPE_P2P_CLIENT:
9913 if (!info->attrs[NL80211_ATTR_MAC])
9916 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9919 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
9925 #define NL80211_FLAG_NEED_WIPHY 0x01
9926 #define NL80211_FLAG_NEED_NETDEV 0x02
9927 #define NL80211_FLAG_NEED_RTNL 0x04
9928 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9929 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9930 NL80211_FLAG_CHECK_NETDEV_UP)
9931 #define NL80211_FLAG_NEED_WDEV 0x10
9932 /* If a netdev is associated, it must be UP, P2P must be started */
9933 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9934 NL80211_FLAG_CHECK_NETDEV_UP)
9935 #define NL80211_FLAG_CLEAR_SKB 0x20
9937 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9938 struct genl_info *info)
9940 struct cfg80211_registered_device *rdev;
9941 struct wireless_dev *wdev;
9942 struct net_device *dev;
9943 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9948 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9949 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9953 return PTR_ERR(rdev);
9955 info->user_ptr[0] = rdev;
9956 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9957 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9960 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9965 return PTR_ERR(wdev);
9969 rdev = wiphy_to_rdev(wdev->wiphy);
9971 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9978 info->user_ptr[1] = dev;
9980 info->user_ptr[1] = wdev;
9984 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9985 !netif_running(dev)) {
9992 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9993 if (!wdev->p2p_started) {
10000 info->user_ptr[0] = rdev;
10006 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10007 struct genl_info *info)
10009 if (info->user_ptr[1]) {
10010 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10011 struct wireless_dev *wdev = info->user_ptr[1];
10014 dev_put(wdev->netdev);
10016 dev_put(info->user_ptr[1]);
10020 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10023 /* If needed, clear the netlink message payload from the SKB
10024 * as it might contain key data that shouldn't stick around on
10025 * the heap after the SKB is freed. The netlink message header
10026 * is still needed for further processing, so leave it intact.
10028 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10029 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10031 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10035 static const struct genl_ops nl80211_ops[] = {
10037 .cmd = NL80211_CMD_GET_WIPHY,
10038 .doit = nl80211_get_wiphy,
10039 .dumpit = nl80211_dump_wiphy,
10040 .done = nl80211_dump_wiphy_done,
10041 .policy = nl80211_policy,
10042 /* can be retrieved by unprivileged users */
10043 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10044 NL80211_FLAG_NEED_RTNL,
10047 .cmd = NL80211_CMD_SET_WIPHY,
10048 .doit = nl80211_set_wiphy,
10049 .policy = nl80211_policy,
10050 .flags = GENL_ADMIN_PERM,
10051 .internal_flags = NL80211_FLAG_NEED_RTNL,
10054 .cmd = NL80211_CMD_GET_INTERFACE,
10055 .doit = nl80211_get_interface,
10056 .dumpit = nl80211_dump_interface,
10057 .policy = nl80211_policy,
10058 /* can be retrieved by unprivileged users */
10059 .internal_flags = NL80211_FLAG_NEED_WDEV |
10060 NL80211_FLAG_NEED_RTNL,
10063 .cmd = NL80211_CMD_SET_INTERFACE,
10064 .doit = nl80211_set_interface,
10065 .policy = nl80211_policy,
10066 .flags = GENL_ADMIN_PERM,
10067 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10068 NL80211_FLAG_NEED_RTNL,
10071 .cmd = NL80211_CMD_NEW_INTERFACE,
10072 .doit = nl80211_new_interface,
10073 .policy = nl80211_policy,
10074 .flags = GENL_ADMIN_PERM,
10075 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10076 NL80211_FLAG_NEED_RTNL,
10079 .cmd = NL80211_CMD_DEL_INTERFACE,
10080 .doit = nl80211_del_interface,
10081 .policy = nl80211_policy,
10082 .flags = GENL_ADMIN_PERM,
10083 .internal_flags = NL80211_FLAG_NEED_WDEV |
10084 NL80211_FLAG_NEED_RTNL,
10087 .cmd = NL80211_CMD_GET_KEY,
10088 .doit = nl80211_get_key,
10089 .policy = nl80211_policy,
10090 .flags = GENL_ADMIN_PERM,
10091 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10092 NL80211_FLAG_NEED_RTNL,
10095 .cmd = NL80211_CMD_SET_KEY,
10096 .doit = nl80211_set_key,
10097 .policy = nl80211_policy,
10098 .flags = GENL_ADMIN_PERM,
10099 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10100 NL80211_FLAG_NEED_RTNL |
10101 NL80211_FLAG_CLEAR_SKB,
10104 .cmd = NL80211_CMD_NEW_KEY,
10105 .doit = nl80211_new_key,
10106 .policy = nl80211_policy,
10107 .flags = GENL_ADMIN_PERM,
10108 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10109 NL80211_FLAG_NEED_RTNL |
10110 NL80211_FLAG_CLEAR_SKB,
10113 .cmd = NL80211_CMD_DEL_KEY,
10114 .doit = nl80211_del_key,
10115 .policy = nl80211_policy,
10116 .flags = GENL_ADMIN_PERM,
10117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10118 NL80211_FLAG_NEED_RTNL,
10121 .cmd = NL80211_CMD_SET_BEACON,
10122 .policy = nl80211_policy,
10123 .flags = GENL_ADMIN_PERM,
10124 .doit = nl80211_set_beacon,
10125 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10126 NL80211_FLAG_NEED_RTNL,
10129 .cmd = NL80211_CMD_START_AP,
10130 .policy = nl80211_policy,
10131 .flags = GENL_ADMIN_PERM,
10132 .doit = nl80211_start_ap,
10133 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10134 NL80211_FLAG_NEED_RTNL,
10137 .cmd = NL80211_CMD_STOP_AP,
10138 .policy = nl80211_policy,
10139 .flags = GENL_ADMIN_PERM,
10140 .doit = nl80211_stop_ap,
10141 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10142 NL80211_FLAG_NEED_RTNL,
10145 .cmd = NL80211_CMD_GET_STATION,
10146 .doit = nl80211_get_station,
10147 .dumpit = nl80211_dump_station,
10148 .policy = nl80211_policy,
10149 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10150 NL80211_FLAG_NEED_RTNL,
10153 .cmd = NL80211_CMD_SET_STATION,
10154 .doit = nl80211_set_station,
10155 .policy = nl80211_policy,
10156 .flags = GENL_ADMIN_PERM,
10157 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10158 NL80211_FLAG_NEED_RTNL,
10161 .cmd = NL80211_CMD_NEW_STATION,
10162 .doit = nl80211_new_station,
10163 .policy = nl80211_policy,
10164 .flags = GENL_ADMIN_PERM,
10165 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10166 NL80211_FLAG_NEED_RTNL,
10169 .cmd = NL80211_CMD_DEL_STATION,
10170 .doit = nl80211_del_station,
10171 .policy = nl80211_policy,
10172 .flags = GENL_ADMIN_PERM,
10173 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10174 NL80211_FLAG_NEED_RTNL,
10177 .cmd = NL80211_CMD_GET_MPATH,
10178 .doit = nl80211_get_mpath,
10179 .dumpit = nl80211_dump_mpath,
10180 .policy = nl80211_policy,
10181 .flags = GENL_ADMIN_PERM,
10182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10183 NL80211_FLAG_NEED_RTNL,
10186 .cmd = NL80211_CMD_GET_MPP,
10187 .doit = nl80211_get_mpp,
10188 .dumpit = nl80211_dump_mpp,
10189 .policy = nl80211_policy,
10190 .flags = GENL_ADMIN_PERM,
10191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10192 NL80211_FLAG_NEED_RTNL,
10195 .cmd = NL80211_CMD_SET_MPATH,
10196 .doit = nl80211_set_mpath,
10197 .policy = nl80211_policy,
10198 .flags = GENL_ADMIN_PERM,
10199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10200 NL80211_FLAG_NEED_RTNL,
10203 .cmd = NL80211_CMD_NEW_MPATH,
10204 .doit = nl80211_new_mpath,
10205 .policy = nl80211_policy,
10206 .flags = GENL_ADMIN_PERM,
10207 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10208 NL80211_FLAG_NEED_RTNL,
10211 .cmd = NL80211_CMD_DEL_MPATH,
10212 .doit = nl80211_del_mpath,
10213 .policy = nl80211_policy,
10214 .flags = GENL_ADMIN_PERM,
10215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10216 NL80211_FLAG_NEED_RTNL,
10219 .cmd = NL80211_CMD_SET_BSS,
10220 .doit = nl80211_set_bss,
10221 .policy = nl80211_policy,
10222 .flags = GENL_ADMIN_PERM,
10223 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10224 NL80211_FLAG_NEED_RTNL,
10227 .cmd = NL80211_CMD_GET_REG,
10228 .doit = nl80211_get_reg,
10229 .policy = nl80211_policy,
10230 .internal_flags = NL80211_FLAG_NEED_RTNL,
10231 /* can be retrieved by unprivileged users */
10234 .cmd = NL80211_CMD_SET_REG,
10235 .doit = nl80211_set_reg,
10236 .policy = nl80211_policy,
10237 .flags = GENL_ADMIN_PERM,
10238 .internal_flags = NL80211_FLAG_NEED_RTNL,
10241 .cmd = NL80211_CMD_REQ_SET_REG,
10242 .doit = nl80211_req_set_reg,
10243 .policy = nl80211_policy,
10244 .flags = GENL_ADMIN_PERM,
10247 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10248 .doit = nl80211_get_mesh_config,
10249 .policy = nl80211_policy,
10250 /* can be retrieved by unprivileged users */
10251 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10252 NL80211_FLAG_NEED_RTNL,
10255 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10256 .doit = nl80211_update_mesh_config,
10257 .policy = nl80211_policy,
10258 .flags = GENL_ADMIN_PERM,
10259 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10260 NL80211_FLAG_NEED_RTNL,
10263 .cmd = NL80211_CMD_TRIGGER_SCAN,
10264 .doit = nl80211_trigger_scan,
10265 .policy = nl80211_policy,
10266 .flags = GENL_ADMIN_PERM,
10267 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10268 NL80211_FLAG_NEED_RTNL,
10271 .cmd = NL80211_CMD_GET_SCAN,
10272 .policy = nl80211_policy,
10273 .dumpit = nl80211_dump_scan,
10276 .cmd = NL80211_CMD_START_SCHED_SCAN,
10277 .doit = nl80211_start_sched_scan,
10278 .policy = nl80211_policy,
10279 .flags = GENL_ADMIN_PERM,
10280 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10281 NL80211_FLAG_NEED_RTNL,
10284 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10285 .doit = nl80211_stop_sched_scan,
10286 .policy = nl80211_policy,
10287 .flags = GENL_ADMIN_PERM,
10288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10289 NL80211_FLAG_NEED_RTNL,
10292 .cmd = NL80211_CMD_AUTHENTICATE,
10293 .doit = nl80211_authenticate,
10294 .policy = nl80211_policy,
10295 .flags = GENL_ADMIN_PERM,
10296 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10297 NL80211_FLAG_NEED_RTNL |
10298 NL80211_FLAG_CLEAR_SKB,
10301 .cmd = NL80211_CMD_ASSOCIATE,
10302 .doit = nl80211_associate,
10303 .policy = nl80211_policy,
10304 .flags = GENL_ADMIN_PERM,
10305 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10306 NL80211_FLAG_NEED_RTNL,
10309 .cmd = NL80211_CMD_DEAUTHENTICATE,
10310 .doit = nl80211_deauthenticate,
10311 .policy = nl80211_policy,
10312 .flags = GENL_ADMIN_PERM,
10313 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10314 NL80211_FLAG_NEED_RTNL,
10317 .cmd = NL80211_CMD_DISASSOCIATE,
10318 .doit = nl80211_disassociate,
10319 .policy = nl80211_policy,
10320 .flags = GENL_ADMIN_PERM,
10321 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10322 NL80211_FLAG_NEED_RTNL,
10325 .cmd = NL80211_CMD_JOIN_IBSS,
10326 .doit = nl80211_join_ibss,
10327 .policy = nl80211_policy,
10328 .flags = GENL_ADMIN_PERM,
10329 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10330 NL80211_FLAG_NEED_RTNL,
10333 .cmd = NL80211_CMD_LEAVE_IBSS,
10334 .doit = nl80211_leave_ibss,
10335 .policy = nl80211_policy,
10336 .flags = GENL_ADMIN_PERM,
10337 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10338 NL80211_FLAG_NEED_RTNL,
10340 #ifdef CONFIG_NL80211_TESTMODE
10342 .cmd = NL80211_CMD_TESTMODE,
10343 .doit = nl80211_testmode_do,
10344 .dumpit = nl80211_testmode_dump,
10345 .policy = nl80211_policy,
10346 .flags = GENL_ADMIN_PERM,
10347 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10348 NL80211_FLAG_NEED_RTNL,
10352 .cmd = NL80211_CMD_CONNECT,
10353 .doit = nl80211_connect,
10354 .policy = nl80211_policy,
10355 .flags = GENL_ADMIN_PERM,
10356 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10357 NL80211_FLAG_NEED_RTNL,
10360 .cmd = NL80211_CMD_DISCONNECT,
10361 .doit = nl80211_disconnect,
10362 .policy = nl80211_policy,
10363 .flags = GENL_ADMIN_PERM,
10364 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10365 NL80211_FLAG_NEED_RTNL,
10368 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10369 .doit = nl80211_wiphy_netns,
10370 .policy = nl80211_policy,
10371 .flags = GENL_ADMIN_PERM,
10372 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10373 NL80211_FLAG_NEED_RTNL,
10376 .cmd = NL80211_CMD_GET_SURVEY,
10377 .policy = nl80211_policy,
10378 .dumpit = nl80211_dump_survey,
10381 .cmd = NL80211_CMD_SET_PMKSA,
10382 .doit = nl80211_setdel_pmksa,
10383 .policy = nl80211_policy,
10384 .flags = GENL_ADMIN_PERM,
10385 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10386 NL80211_FLAG_NEED_RTNL,
10389 .cmd = NL80211_CMD_DEL_PMKSA,
10390 .doit = nl80211_setdel_pmksa,
10391 .policy = nl80211_policy,
10392 .flags = GENL_ADMIN_PERM,
10393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10394 NL80211_FLAG_NEED_RTNL,
10397 .cmd = NL80211_CMD_FLUSH_PMKSA,
10398 .doit = nl80211_flush_pmksa,
10399 .policy = nl80211_policy,
10400 .flags = GENL_ADMIN_PERM,
10401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10402 NL80211_FLAG_NEED_RTNL,
10405 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10406 .doit = nl80211_remain_on_channel,
10407 .policy = nl80211_policy,
10408 .flags = GENL_ADMIN_PERM,
10409 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10410 NL80211_FLAG_NEED_RTNL,
10413 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10414 .doit = nl80211_cancel_remain_on_channel,
10415 .policy = nl80211_policy,
10416 .flags = GENL_ADMIN_PERM,
10417 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10418 NL80211_FLAG_NEED_RTNL,
10421 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10422 .doit = nl80211_set_tx_bitrate_mask,
10423 .policy = nl80211_policy,
10424 .flags = GENL_ADMIN_PERM,
10425 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10426 NL80211_FLAG_NEED_RTNL,
10429 .cmd = NL80211_CMD_REGISTER_FRAME,
10430 .doit = nl80211_register_mgmt,
10431 .policy = nl80211_policy,
10432 .flags = GENL_ADMIN_PERM,
10433 .internal_flags = NL80211_FLAG_NEED_WDEV |
10434 NL80211_FLAG_NEED_RTNL,
10437 .cmd = NL80211_CMD_FRAME,
10438 .doit = nl80211_tx_mgmt,
10439 .policy = nl80211_policy,
10440 .flags = GENL_ADMIN_PERM,
10441 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10442 NL80211_FLAG_NEED_RTNL,
10445 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10446 .doit = nl80211_tx_mgmt_cancel_wait,
10447 .policy = nl80211_policy,
10448 .flags = GENL_ADMIN_PERM,
10449 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10450 NL80211_FLAG_NEED_RTNL,
10453 .cmd = NL80211_CMD_SET_POWER_SAVE,
10454 .doit = nl80211_set_power_save,
10455 .policy = nl80211_policy,
10456 .flags = GENL_ADMIN_PERM,
10457 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10458 NL80211_FLAG_NEED_RTNL,
10461 .cmd = NL80211_CMD_GET_POWER_SAVE,
10462 .doit = nl80211_get_power_save,
10463 .policy = nl80211_policy,
10464 /* can be retrieved by unprivileged users */
10465 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10466 NL80211_FLAG_NEED_RTNL,
10469 .cmd = NL80211_CMD_SET_CQM,
10470 .doit = nl80211_set_cqm,
10471 .policy = nl80211_policy,
10472 .flags = GENL_ADMIN_PERM,
10473 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10474 NL80211_FLAG_NEED_RTNL,
10477 .cmd = NL80211_CMD_SET_CHANNEL,
10478 .doit = nl80211_set_channel,
10479 .policy = nl80211_policy,
10480 .flags = GENL_ADMIN_PERM,
10481 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10482 NL80211_FLAG_NEED_RTNL,
10485 .cmd = NL80211_CMD_SET_WDS_PEER,
10486 .doit = nl80211_set_wds_peer,
10487 .policy = nl80211_policy,
10488 .flags = GENL_ADMIN_PERM,
10489 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10490 NL80211_FLAG_NEED_RTNL,
10493 .cmd = NL80211_CMD_JOIN_MESH,
10494 .doit = nl80211_join_mesh,
10495 .policy = nl80211_policy,
10496 .flags = GENL_ADMIN_PERM,
10497 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10498 NL80211_FLAG_NEED_RTNL,
10501 .cmd = NL80211_CMD_LEAVE_MESH,
10502 .doit = nl80211_leave_mesh,
10503 .policy = nl80211_policy,
10504 .flags = GENL_ADMIN_PERM,
10505 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10506 NL80211_FLAG_NEED_RTNL,
10509 .cmd = NL80211_CMD_JOIN_OCB,
10510 .doit = nl80211_join_ocb,
10511 .policy = nl80211_policy,
10512 .flags = GENL_ADMIN_PERM,
10513 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10514 NL80211_FLAG_NEED_RTNL,
10517 .cmd = NL80211_CMD_LEAVE_OCB,
10518 .doit = nl80211_leave_ocb,
10519 .policy = nl80211_policy,
10520 .flags = GENL_ADMIN_PERM,
10521 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10522 NL80211_FLAG_NEED_RTNL,
10526 .cmd = NL80211_CMD_GET_WOWLAN,
10527 .doit = nl80211_get_wowlan,
10528 .policy = nl80211_policy,
10529 /* can be retrieved by unprivileged users */
10530 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10531 NL80211_FLAG_NEED_RTNL,
10534 .cmd = NL80211_CMD_SET_WOWLAN,
10535 .doit = nl80211_set_wowlan,
10536 .policy = nl80211_policy,
10537 .flags = GENL_ADMIN_PERM,
10538 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10539 NL80211_FLAG_NEED_RTNL,
10543 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10544 .doit = nl80211_set_rekey_data,
10545 .policy = nl80211_policy,
10546 .flags = GENL_ADMIN_PERM,
10547 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10548 NL80211_FLAG_NEED_RTNL |
10549 NL80211_FLAG_CLEAR_SKB,
10552 .cmd = NL80211_CMD_TDLS_MGMT,
10553 .doit = nl80211_tdls_mgmt,
10554 .policy = nl80211_policy,
10555 .flags = GENL_ADMIN_PERM,
10556 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10557 NL80211_FLAG_NEED_RTNL,
10560 .cmd = NL80211_CMD_TDLS_OPER,
10561 .doit = nl80211_tdls_oper,
10562 .policy = nl80211_policy,
10563 .flags = GENL_ADMIN_PERM,
10564 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10565 NL80211_FLAG_NEED_RTNL,
10568 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10569 .doit = nl80211_register_unexpected_frame,
10570 .policy = nl80211_policy,
10571 .flags = GENL_ADMIN_PERM,
10572 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10573 NL80211_FLAG_NEED_RTNL,
10576 .cmd = NL80211_CMD_PROBE_CLIENT,
10577 .doit = nl80211_probe_client,
10578 .policy = nl80211_policy,
10579 .flags = GENL_ADMIN_PERM,
10580 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10581 NL80211_FLAG_NEED_RTNL,
10584 .cmd = NL80211_CMD_REGISTER_BEACONS,
10585 .doit = nl80211_register_beacons,
10586 .policy = nl80211_policy,
10587 .flags = GENL_ADMIN_PERM,
10588 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10589 NL80211_FLAG_NEED_RTNL,
10592 .cmd = NL80211_CMD_SET_NOACK_MAP,
10593 .doit = nl80211_set_noack_map,
10594 .policy = nl80211_policy,
10595 .flags = GENL_ADMIN_PERM,
10596 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10597 NL80211_FLAG_NEED_RTNL,
10600 .cmd = NL80211_CMD_START_P2P_DEVICE,
10601 .doit = nl80211_start_p2p_device,
10602 .policy = nl80211_policy,
10603 .flags = GENL_ADMIN_PERM,
10604 .internal_flags = NL80211_FLAG_NEED_WDEV |
10605 NL80211_FLAG_NEED_RTNL,
10608 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10609 .doit = nl80211_stop_p2p_device,
10610 .policy = nl80211_policy,
10611 .flags = GENL_ADMIN_PERM,
10612 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10613 NL80211_FLAG_NEED_RTNL,
10616 .cmd = NL80211_CMD_SET_MCAST_RATE,
10617 .doit = nl80211_set_mcast_rate,
10618 .policy = nl80211_policy,
10619 .flags = GENL_ADMIN_PERM,
10620 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10621 NL80211_FLAG_NEED_RTNL,
10624 .cmd = NL80211_CMD_SET_MAC_ACL,
10625 .doit = nl80211_set_mac_acl,
10626 .policy = nl80211_policy,
10627 .flags = GENL_ADMIN_PERM,
10628 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10629 NL80211_FLAG_NEED_RTNL,
10632 .cmd = NL80211_CMD_RADAR_DETECT,
10633 .doit = nl80211_start_radar_detection,
10634 .policy = nl80211_policy,
10635 .flags = GENL_ADMIN_PERM,
10636 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10637 NL80211_FLAG_NEED_RTNL,
10640 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10641 .doit = nl80211_get_protocol_features,
10642 .policy = nl80211_policy,
10645 .cmd = NL80211_CMD_UPDATE_FT_IES,
10646 .doit = nl80211_update_ft_ies,
10647 .policy = nl80211_policy,
10648 .flags = GENL_ADMIN_PERM,
10649 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10650 NL80211_FLAG_NEED_RTNL,
10653 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10654 .doit = nl80211_crit_protocol_start,
10655 .policy = nl80211_policy,
10656 .flags = GENL_ADMIN_PERM,
10657 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10658 NL80211_FLAG_NEED_RTNL,
10661 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10662 .doit = nl80211_crit_protocol_stop,
10663 .policy = nl80211_policy,
10664 .flags = GENL_ADMIN_PERM,
10665 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10666 NL80211_FLAG_NEED_RTNL,
10669 .cmd = NL80211_CMD_GET_COALESCE,
10670 .doit = nl80211_get_coalesce,
10671 .policy = nl80211_policy,
10672 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10673 NL80211_FLAG_NEED_RTNL,
10676 .cmd = NL80211_CMD_SET_COALESCE,
10677 .doit = nl80211_set_coalesce,
10678 .policy = nl80211_policy,
10679 .flags = GENL_ADMIN_PERM,
10680 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10681 NL80211_FLAG_NEED_RTNL,
10684 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10685 .doit = nl80211_channel_switch,
10686 .policy = nl80211_policy,
10687 .flags = GENL_ADMIN_PERM,
10688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10689 NL80211_FLAG_NEED_RTNL,
10692 .cmd = NL80211_CMD_VENDOR,
10693 .doit = nl80211_vendor_cmd,
10694 .policy = nl80211_policy,
10695 .flags = GENL_ADMIN_PERM,
10696 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10697 NL80211_FLAG_NEED_RTNL,
10700 .cmd = NL80211_CMD_SET_QOS_MAP,
10701 .doit = nl80211_set_qos_map,
10702 .policy = nl80211_policy,
10703 .flags = GENL_ADMIN_PERM,
10704 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10705 NL80211_FLAG_NEED_RTNL,
10708 .cmd = NL80211_CMD_ADD_TX_TS,
10709 .doit = nl80211_add_tx_ts,
10710 .policy = nl80211_policy,
10711 .flags = GENL_ADMIN_PERM,
10712 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10713 NL80211_FLAG_NEED_RTNL,
10716 .cmd = NL80211_CMD_DEL_TX_TS,
10717 .doit = nl80211_del_tx_ts,
10718 .policy = nl80211_policy,
10719 .flags = GENL_ADMIN_PERM,
10720 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10721 NL80211_FLAG_NEED_RTNL,
10724 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10725 .doit = nl80211_tdls_channel_switch,
10726 .policy = nl80211_policy,
10727 .flags = GENL_ADMIN_PERM,
10728 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10729 NL80211_FLAG_NEED_RTNL,
10732 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10733 .doit = nl80211_tdls_cancel_channel_switch,
10734 .policy = nl80211_policy,
10735 .flags = GENL_ADMIN_PERM,
10736 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10737 NL80211_FLAG_NEED_RTNL,
10741 /* notification functions */
10743 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10744 enum nl80211_commands cmd)
10746 struct sk_buff *msg;
10747 struct nl80211_dump_wiphy_state state = {};
10749 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10750 cmd != NL80211_CMD_DEL_WIPHY);
10752 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10756 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
10761 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10762 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10765 static int nl80211_add_scan_req(struct sk_buff *msg,
10766 struct cfg80211_registered_device *rdev)
10768 struct cfg80211_scan_request *req = rdev->scan_req;
10769 struct nlattr *nest;
10775 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10777 goto nla_put_failure;
10778 for (i = 0; i < req->n_ssids; i++) {
10779 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10780 goto nla_put_failure;
10782 nla_nest_end(msg, nest);
10784 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10786 goto nla_put_failure;
10787 for (i = 0; i < req->n_channels; i++) {
10788 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10789 goto nla_put_failure;
10791 nla_nest_end(msg, nest);
10794 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10795 goto nla_put_failure;
10798 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10799 goto nla_put_failure;
10806 static int nl80211_send_scan_msg(struct sk_buff *msg,
10807 struct cfg80211_registered_device *rdev,
10808 struct wireless_dev *wdev,
10809 u32 portid, u32 seq, int flags,
10814 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10818 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10819 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10820 wdev->netdev->ifindex)) ||
10821 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10822 goto nla_put_failure;
10824 /* ignore errors and send incomplete event anyway */
10825 nl80211_add_scan_req(msg, rdev);
10827 return genlmsg_end(msg, hdr);
10830 genlmsg_cancel(msg, hdr);
10835 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10836 struct cfg80211_registered_device *rdev,
10837 struct net_device *netdev,
10838 u32 portid, u32 seq, int flags, u32 cmd)
10842 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10846 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10847 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10848 goto nla_put_failure;
10850 return genlmsg_end(msg, hdr);
10853 genlmsg_cancel(msg, hdr);
10857 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10858 struct wireless_dev *wdev)
10860 struct sk_buff *msg;
10862 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10866 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10867 NL80211_CMD_TRIGGER_SCAN) < 0) {
10872 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10873 NL80211_MCGRP_SCAN, GFP_KERNEL);
10876 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10877 struct wireless_dev *wdev, bool aborted)
10879 struct sk_buff *msg;
10881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10885 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10886 aborted ? NL80211_CMD_SCAN_ABORTED :
10887 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10895 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10896 struct sk_buff *msg)
10901 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10902 NL80211_MCGRP_SCAN, GFP_KERNEL);
10905 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10906 struct net_device *netdev)
10908 struct sk_buff *msg;
10910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10914 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10915 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10920 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10921 NL80211_MCGRP_SCAN, GFP_KERNEL);
10924 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10925 struct net_device *netdev, u32 cmd)
10927 struct sk_buff *msg;
10929 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10933 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10938 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10939 NL80211_MCGRP_SCAN, GFP_KERNEL);
10943 * This can happen on global regulatory changes or device specific settings
10944 * based on custom world regulatory domains.
10946 void nl80211_send_reg_change_event(struct regulatory_request *request)
10948 struct sk_buff *msg;
10951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10955 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10961 /* Userspace can always count this one always being set */
10962 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10963 goto nla_put_failure;
10965 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10966 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10967 NL80211_REGDOM_TYPE_WORLD))
10968 goto nla_put_failure;
10969 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10970 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10971 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10972 goto nla_put_failure;
10973 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10974 request->intersect) {
10975 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10976 NL80211_REGDOM_TYPE_INTERSECTION))
10977 goto nla_put_failure;
10979 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10980 NL80211_REGDOM_TYPE_COUNTRY) ||
10981 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10983 goto nla_put_failure;
10986 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10987 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10988 goto nla_put_failure;
10990 genlmsg_end(msg, hdr);
10993 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10994 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11000 genlmsg_cancel(msg, hdr);
11004 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11005 struct net_device *netdev,
11006 const u8 *buf, size_t len,
11007 enum nl80211_commands cmd, gfp_t gfp,
11010 struct sk_buff *msg;
11013 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11017 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11023 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11024 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11025 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11026 goto nla_put_failure;
11028 if (uapsd_queues >= 0) {
11029 struct nlattr *nla_wmm =
11030 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11032 goto nla_put_failure;
11034 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11036 goto nla_put_failure;
11038 nla_nest_end(msg, nla_wmm);
11041 genlmsg_end(msg, hdr);
11043 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11044 NL80211_MCGRP_MLME, gfp);
11048 genlmsg_cancel(msg, hdr);
11052 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11053 struct net_device *netdev, const u8 *buf,
11054 size_t len, gfp_t gfp)
11056 nl80211_send_mlme_event(rdev, netdev, buf, len,
11057 NL80211_CMD_AUTHENTICATE, gfp, -1);
11060 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11061 struct net_device *netdev, const u8 *buf,
11062 size_t len, gfp_t gfp, int uapsd_queues)
11064 nl80211_send_mlme_event(rdev, netdev, buf, len,
11065 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11068 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11069 struct net_device *netdev, const u8 *buf,
11070 size_t len, gfp_t gfp)
11072 nl80211_send_mlme_event(rdev, netdev, buf, len,
11073 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11076 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11077 struct net_device *netdev, const u8 *buf,
11078 size_t len, gfp_t gfp)
11080 nl80211_send_mlme_event(rdev, netdev, buf, len,
11081 NL80211_CMD_DISASSOCIATE, gfp, -1);
11084 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11087 struct wireless_dev *wdev = dev->ieee80211_ptr;
11088 struct wiphy *wiphy = wdev->wiphy;
11089 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11090 const struct ieee80211_mgmt *mgmt = (void *)buf;
11093 if (WARN_ON(len < 2))
11096 if (ieee80211_is_deauth(mgmt->frame_control))
11097 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11099 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11101 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11102 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11104 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11106 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11107 struct net_device *netdev, int cmd,
11108 const u8 *addr, gfp_t gfp)
11110 struct sk_buff *msg;
11113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11117 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11123 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11124 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11125 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11126 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11127 goto nla_put_failure;
11129 genlmsg_end(msg, hdr);
11131 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11132 NL80211_MCGRP_MLME, gfp);
11136 genlmsg_cancel(msg, hdr);
11140 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11141 struct net_device *netdev, const u8 *addr,
11144 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11148 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11149 struct net_device *netdev, const u8 *addr,
11152 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11156 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11157 struct net_device *netdev, const u8 *bssid,
11158 const u8 *req_ie, size_t req_ie_len,
11159 const u8 *resp_ie, size_t resp_ie_len,
11160 u16 status, gfp_t gfp)
11162 struct sk_buff *msg;
11165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11169 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11176 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11177 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11178 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11180 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11182 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11183 goto nla_put_failure;
11185 genlmsg_end(msg, hdr);
11187 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11188 NL80211_MCGRP_MLME, gfp);
11192 genlmsg_cancel(msg, hdr);
11197 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11198 struct net_device *netdev, const u8 *bssid,
11199 const u8 *req_ie, size_t req_ie_len,
11200 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11202 struct sk_buff *msg;
11205 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11209 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11215 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11216 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11217 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11219 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11221 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11222 goto nla_put_failure;
11224 genlmsg_end(msg, hdr);
11226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11227 NL80211_MCGRP_MLME, gfp);
11231 genlmsg_cancel(msg, hdr);
11236 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11237 struct net_device *netdev, u16 reason,
11238 const u8 *ie, size_t ie_len, bool from_ap)
11240 struct sk_buff *msg;
11243 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11247 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11253 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11254 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11255 (from_ap && reason &&
11256 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11258 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11259 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11260 goto nla_put_failure;
11262 genlmsg_end(msg, hdr);
11264 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11265 NL80211_MCGRP_MLME, GFP_KERNEL);
11269 genlmsg_cancel(msg, hdr);
11274 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11275 struct net_device *netdev, const u8 *bssid,
11278 struct sk_buff *msg;
11281 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11285 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11291 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11292 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11293 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11294 goto nla_put_failure;
11296 genlmsg_end(msg, hdr);
11298 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11299 NL80211_MCGRP_MLME, gfp);
11303 genlmsg_cancel(msg, hdr);
11307 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11308 const u8* ie, u8 ie_len, gfp_t gfp)
11310 struct wireless_dev *wdev = dev->ieee80211_ptr;
11311 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11312 struct sk_buff *msg;
11315 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11318 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11320 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11330 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11331 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11332 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11334 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11335 goto nla_put_failure;
11337 genlmsg_end(msg, hdr);
11339 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11340 NL80211_MCGRP_MLME, gfp);
11344 genlmsg_cancel(msg, hdr);
11347 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
11349 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11350 struct net_device *netdev, const u8 *addr,
11351 enum nl80211_key_type key_type, int key_id,
11352 const u8 *tsc, gfp_t gfp)
11354 struct sk_buff *msg;
11357 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11361 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11367 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11368 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11369 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11370 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11372 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11373 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11374 goto nla_put_failure;
11376 genlmsg_end(msg, hdr);
11378 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11379 NL80211_MCGRP_MLME, gfp);
11383 genlmsg_cancel(msg, hdr);
11387 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11388 struct ieee80211_channel *channel_before,
11389 struct ieee80211_channel *channel_after)
11391 struct sk_buff *msg;
11393 struct nlattr *nl_freq;
11395 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
11399 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11406 * Since we are applying the beacon hint to a wiphy we know its
11407 * wiphy_idx is valid
11409 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11410 goto nla_put_failure;
11413 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11415 goto nla_put_failure;
11416 if (nl80211_msg_put_channel(msg, channel_before, false))
11417 goto nla_put_failure;
11418 nla_nest_end(msg, nl_freq);
11421 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11423 goto nla_put_failure;
11424 if (nl80211_msg_put_channel(msg, channel_after, false))
11425 goto nla_put_failure;
11426 nla_nest_end(msg, nl_freq);
11428 genlmsg_end(msg, hdr);
11431 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11432 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11438 genlmsg_cancel(msg, hdr);
11442 static void nl80211_send_remain_on_chan_event(
11443 int cmd, struct cfg80211_registered_device *rdev,
11444 struct wireless_dev *wdev, u64 cookie,
11445 struct ieee80211_channel *chan,
11446 unsigned int duration, gfp_t gfp)
11448 struct sk_buff *msg;
11451 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11455 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11461 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11462 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11463 wdev->netdev->ifindex)) ||
11464 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11465 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
11466 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11467 NL80211_CHAN_NO_HT) ||
11468 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11469 goto nla_put_failure;
11471 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11472 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11473 goto nla_put_failure;
11475 genlmsg_end(msg, hdr);
11477 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11478 NL80211_MCGRP_MLME, gfp);
11482 genlmsg_cancel(msg, hdr);
11486 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11487 struct ieee80211_channel *chan,
11488 unsigned int duration, gfp_t gfp)
11490 struct wiphy *wiphy = wdev->wiphy;
11491 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11493 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
11494 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
11495 rdev, wdev, cookie, chan,
11498 EXPORT_SYMBOL(cfg80211_ready_on_channel);
11500 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11501 struct ieee80211_channel *chan,
11504 struct wiphy *wiphy = wdev->wiphy;
11505 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11507 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
11508 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11509 rdev, wdev, cookie, chan, 0, gfp);
11511 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
11513 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11514 struct station_info *sinfo, gfp_t gfp)
11516 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11517 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11518 struct sk_buff *msg;
11520 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11522 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11526 if (nl80211_send_station(msg, 0, 0, 0,
11527 rdev, dev, mac_addr, sinfo) < 0) {
11532 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11533 NL80211_MCGRP_MLME, gfp);
11535 EXPORT_SYMBOL(cfg80211_new_sta);
11537 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
11539 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11540 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11541 struct sk_buff *msg;
11544 trace_cfg80211_del_sta(dev, mac_addr);
11546 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11550 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11556 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11557 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11558 goto nla_put_failure;
11560 genlmsg_end(msg, hdr);
11562 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11563 NL80211_MCGRP_MLME, gfp);
11567 genlmsg_cancel(msg, hdr);
11570 EXPORT_SYMBOL(cfg80211_del_sta);
11572 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11573 enum nl80211_connect_failed_reason reason,
11576 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11577 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11578 struct sk_buff *msg;
11581 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11585 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11591 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11592 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11593 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11594 goto nla_put_failure;
11596 genlmsg_end(msg, hdr);
11598 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11599 NL80211_MCGRP_MLME, gfp);
11603 genlmsg_cancel(msg, hdr);
11606 EXPORT_SYMBOL(cfg80211_conn_failed);
11608 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11609 const u8 *addr, gfp_t gfp)
11611 struct wireless_dev *wdev = dev->ieee80211_ptr;
11612 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11613 struct sk_buff *msg;
11615 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
11620 msg = nlmsg_new(100, gfp);
11624 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11630 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11631 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11632 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11633 goto nla_put_failure;
11635 genlmsg_end(msg, hdr);
11636 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11640 genlmsg_cancel(msg, hdr);
11645 bool cfg80211_rx_spurious_frame(struct net_device *dev,
11646 const u8 *addr, gfp_t gfp)
11648 struct wireless_dev *wdev = dev->ieee80211_ptr;
11651 trace_cfg80211_rx_spurious_frame(dev, addr);
11653 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11654 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11655 trace_cfg80211_return_bool(false);
11658 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11660 trace_cfg80211_return_bool(ret);
11663 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11665 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11666 const u8 *addr, gfp_t gfp)
11668 struct wireless_dev *wdev = dev->ieee80211_ptr;
11671 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11673 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11674 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11675 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11676 trace_cfg80211_return_bool(false);
11679 ret = __nl80211_unexpected_frame(dev,
11680 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11682 trace_cfg80211_return_bool(ret);
11685 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
11687 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
11688 struct wireless_dev *wdev, u32 nlportid,
11689 int freq, int sig_dbm,
11690 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
11692 struct net_device *netdev = wdev->netdev;
11693 struct sk_buff *msg;
11696 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11700 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11706 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11707 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11708 netdev->ifindex)) ||
11709 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11710 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11712 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11713 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11715 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
11716 goto nla_put_failure;
11718 genlmsg_end(msg, hdr);
11720 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11723 genlmsg_cancel(msg, hdr);
11728 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11729 const u8 *buf, size_t len, bool ack, gfp_t gfp)
11731 struct wiphy *wiphy = wdev->wiphy;
11732 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11733 struct net_device *netdev = wdev->netdev;
11734 struct sk_buff *msg;
11737 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11743 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
11749 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11750 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11751 netdev->ifindex)) ||
11752 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11753 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11754 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11755 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11756 goto nla_put_failure;
11758 genlmsg_end(msg, hdr);
11760 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11761 NL80211_MCGRP_MLME, gfp);
11765 genlmsg_cancel(msg, hdr);
11768 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11770 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
11771 const char *mac, gfp_t gfp)
11773 struct wireless_dev *wdev = dev->ieee80211_ptr;
11774 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11775 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11781 cb = (void **)msg->cb;
11783 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11789 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11790 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11791 goto nla_put_failure;
11793 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
11794 goto nla_put_failure;
11796 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
11798 goto nla_put_failure;
11808 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
11810 void **cb = (void **)msg->cb;
11811 struct cfg80211_registered_device *rdev = cb[2];
11813 nla_nest_end(msg, cb[1]);
11814 genlmsg_end(msg, cb[0]);
11816 memset(msg->cb, 0, sizeof(msg->cb));
11818 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11819 NL80211_MCGRP_MLME, gfp);
11822 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11823 enum nl80211_cqm_rssi_threshold_event rssi_event,
11826 struct sk_buff *msg;
11828 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11830 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
11831 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
11834 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
11838 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11840 goto nla_put_failure;
11842 cfg80211_send_cqm(msg, gfp);
11849 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11851 void cfg80211_cqm_txe_notify(struct net_device *dev,
11852 const u8 *peer, u32 num_packets,
11853 u32 rate, u32 intvl, gfp_t gfp)
11855 struct sk_buff *msg;
11857 msg = cfg80211_prepare_cqm(dev, peer, gfp);
11861 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11862 goto nla_put_failure;
11864 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11865 goto nla_put_failure;
11867 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11868 goto nla_put_failure;
11870 cfg80211_send_cqm(msg, gfp);
11876 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11878 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11879 const u8 *peer, u32 num_packets, gfp_t gfp)
11881 struct sk_buff *msg;
11883 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11885 msg = cfg80211_prepare_cqm(dev, peer, gfp);
11889 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11890 goto nla_put_failure;
11892 cfg80211_send_cqm(msg, gfp);
11898 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11900 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
11902 struct sk_buff *msg;
11904 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
11908 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
11909 goto nla_put_failure;
11911 cfg80211_send_cqm(msg, gfp);
11917 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
11919 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11920 struct net_device *netdev, const u8 *bssid,
11921 const u8 *replay_ctr, gfp_t gfp)
11923 struct sk_buff *msg;
11924 struct nlattr *rekey_attr;
11927 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11931 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11937 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11938 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11939 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11940 goto nla_put_failure;
11942 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11944 goto nla_put_failure;
11946 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11947 NL80211_REPLAY_CTR_LEN, replay_ctr))
11948 goto nla_put_failure;
11950 nla_nest_end(msg, rekey_attr);
11952 genlmsg_end(msg, hdr);
11954 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11955 NL80211_MCGRP_MLME, gfp);
11959 genlmsg_cancel(msg, hdr);
11963 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11964 const u8 *replay_ctr, gfp_t gfp)
11966 struct wireless_dev *wdev = dev->ieee80211_ptr;
11967 struct wiphy *wiphy = wdev->wiphy;
11968 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11970 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11971 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11973 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11976 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11977 struct net_device *netdev, int index,
11978 const u8 *bssid, bool preauth, gfp_t gfp)
11980 struct sk_buff *msg;
11981 struct nlattr *attr;
11984 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11988 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11994 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11995 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11996 goto nla_put_failure;
11998 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12000 goto nla_put_failure;
12002 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12003 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12005 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12006 goto nla_put_failure;
12008 nla_nest_end(msg, attr);
12010 genlmsg_end(msg, hdr);
12012 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12013 NL80211_MCGRP_MLME, gfp);
12017 genlmsg_cancel(msg, hdr);
12021 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12022 const u8 *bssid, bool preauth, gfp_t gfp)
12024 struct wireless_dev *wdev = dev->ieee80211_ptr;
12025 struct wiphy *wiphy = wdev->wiphy;
12026 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12028 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12029 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12031 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12033 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12034 struct net_device *netdev,
12035 struct cfg80211_chan_def *chandef,
12037 enum nl80211_commands notif,
12040 struct sk_buff *msg;
12043 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12047 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12053 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12054 goto nla_put_failure;
12056 if (nl80211_send_chandef(msg, chandef))
12057 goto nla_put_failure;
12059 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12060 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12061 goto nla_put_failure;
12063 genlmsg_end(msg, hdr);
12065 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12066 NL80211_MCGRP_MLME, gfp);
12070 genlmsg_cancel(msg, hdr);
12074 void cfg80211_ch_switch_notify(struct net_device *dev,
12075 struct cfg80211_chan_def *chandef)
12077 struct wireless_dev *wdev = dev->ieee80211_ptr;
12078 struct wiphy *wiphy = wdev->wiphy;
12079 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12081 ASSERT_WDEV_LOCK(wdev);
12083 trace_cfg80211_ch_switch_notify(dev, chandef);
12085 wdev->chandef = *chandef;
12086 wdev->preset_chandef = *chandef;
12087 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12088 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12090 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12092 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12093 struct cfg80211_chan_def *chandef,
12096 struct wireless_dev *wdev = dev->ieee80211_ptr;
12097 struct wiphy *wiphy = wdev->wiphy;
12098 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12100 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12102 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12103 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12105 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12108 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12109 const struct cfg80211_chan_def *chandef,
12110 enum nl80211_radar_event event,
12111 struct net_device *netdev, gfp_t gfp)
12113 struct sk_buff *msg;
12116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12120 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12126 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12127 goto nla_put_failure;
12129 /* NOP and radar events don't need a netdev parameter */
12131 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12133 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12134 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12135 goto nla_put_failure;
12138 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12139 goto nla_put_failure;
12141 if (nl80211_send_chandef(msg, chandef))
12142 goto nla_put_failure;
12144 genlmsg_end(msg, hdr);
12146 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12147 NL80211_MCGRP_MLME, gfp);
12151 genlmsg_cancel(msg, hdr);
12155 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12156 u64 cookie, bool acked, gfp_t gfp)
12158 struct wireless_dev *wdev = dev->ieee80211_ptr;
12159 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12160 struct sk_buff *msg;
12163 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12170 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12176 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12177 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12178 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12179 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12180 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12181 goto nla_put_failure;
12183 genlmsg_end(msg, hdr);
12185 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12186 NL80211_MCGRP_MLME, gfp);
12190 genlmsg_cancel(msg, hdr);
12193 EXPORT_SYMBOL(cfg80211_probe_status);
12195 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12196 const u8 *frame, size_t len,
12197 int freq, int sig_dbm)
12199 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12200 struct sk_buff *msg;
12202 struct cfg80211_beacon_registration *reg;
12204 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12206 spin_lock_bh(&rdev->beacon_registrations_lock);
12207 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12208 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12210 spin_unlock_bh(&rdev->beacon_registrations_lock);
12214 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12216 goto nla_put_failure;
12218 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12220 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12222 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12223 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12224 goto nla_put_failure;
12226 genlmsg_end(msg, hdr);
12228 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12230 spin_unlock_bh(&rdev->beacon_registrations_lock);
12234 spin_unlock_bh(&rdev->beacon_registrations_lock);
12236 genlmsg_cancel(msg, hdr);
12239 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12242 static int cfg80211_net_detect_results(struct sk_buff *msg,
12243 struct cfg80211_wowlan_wakeup *wakeup)
12245 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12246 struct nlattr *nl_results, *nl_match, *nl_freqs;
12249 nl_results = nla_nest_start(
12250 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12254 for (i = 0; i < nd->n_matches; i++) {
12255 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12257 nl_match = nla_nest_start(msg, i);
12261 /* The SSID attribute is optional in nl80211, but for
12262 * simplicity reasons it's always present in the
12263 * cfg80211 structure. If a driver can't pass the
12264 * SSID, that needs to be changed. A zero length SSID
12265 * is still a valid SSID (wildcard), so it cannot be
12266 * used for this purpose.
12268 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12269 match->ssid.ssid)) {
12270 nla_nest_cancel(msg, nl_match);
12274 if (match->n_channels) {
12275 nl_freqs = nla_nest_start(
12276 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12278 nla_nest_cancel(msg, nl_match);
12282 for (j = 0; j < match->n_channels; j++) {
12283 if (nla_put_u32(msg,
12284 NL80211_ATTR_WIPHY_FREQ,
12285 match->channels[j])) {
12286 nla_nest_cancel(msg, nl_freqs);
12287 nla_nest_cancel(msg, nl_match);
12292 nla_nest_end(msg, nl_freqs);
12295 nla_nest_end(msg, nl_match);
12299 nla_nest_end(msg, nl_results);
12303 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12304 struct cfg80211_wowlan_wakeup *wakeup,
12307 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12308 struct sk_buff *msg;
12312 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12315 size += wakeup->packet_present_len;
12317 msg = nlmsg_new(size, gfp);
12321 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12325 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12326 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12329 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12330 wdev->netdev->ifindex))
12334 struct nlattr *reasons;
12336 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
12340 if (wakeup->disconnect &&
12341 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12343 if (wakeup->magic_pkt &&
12344 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12346 if (wakeup->gtk_rekey_failure &&
12347 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12349 if (wakeup->eap_identity_req &&
12350 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12352 if (wakeup->four_way_handshake &&
12353 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12355 if (wakeup->rfkill_release &&
12356 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12359 if (wakeup->pattern_idx >= 0 &&
12360 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12361 wakeup->pattern_idx))
12364 if (wakeup->tcp_match &&
12365 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12368 if (wakeup->tcp_connlost &&
12369 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12372 if (wakeup->tcp_nomoretokens &&
12374 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12377 if (wakeup->packet) {
12378 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12379 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12381 if (!wakeup->packet_80211) {
12383 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12385 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12388 if (wakeup->packet_len &&
12389 nla_put_u32(msg, len_attr, wakeup->packet_len))
12392 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12397 if (wakeup->net_detect &&
12398 cfg80211_net_detect_results(msg, wakeup))
12401 nla_nest_end(msg, reasons);
12404 genlmsg_end(msg, hdr);
12406 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12407 NL80211_MCGRP_MLME, gfp);
12413 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12416 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12417 enum nl80211_tdls_operation oper,
12418 u16 reason_code, gfp_t gfp)
12420 struct wireless_dev *wdev = dev->ieee80211_ptr;
12421 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12422 struct sk_buff *msg;
12425 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12428 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12432 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12438 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12439 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12440 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12441 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12442 (reason_code > 0 &&
12443 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12444 goto nla_put_failure;
12446 genlmsg_end(msg, hdr);
12448 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12449 NL80211_MCGRP_MLME, gfp);
12453 genlmsg_cancel(msg, hdr);
12456 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12458 static int nl80211_netlink_notify(struct notifier_block * nb,
12459 unsigned long state,
12462 struct netlink_notify *notify = _notify;
12463 struct cfg80211_registered_device *rdev;
12464 struct wireless_dev *wdev;
12465 struct cfg80211_beacon_registration *reg, *tmp;
12467 if (state != NETLINK_URELEASE)
12468 return NOTIFY_DONE;
12472 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
12473 bool schedule_destroy_work = false;
12475 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
12476 cfg80211_mlme_unregister_socket(wdev, notify->portid);
12478 if (wdev->owner_nlportid == notify->portid)
12479 schedule_destroy_work = true;
12482 spin_lock_bh(&rdev->beacon_registrations_lock);
12483 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12485 if (reg->nlportid == notify->portid) {
12486 list_del(®->list);
12491 spin_unlock_bh(&rdev->beacon_registrations_lock);
12493 if (schedule_destroy_work) {
12494 struct cfg80211_iface_destroy *destroy;
12496 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12498 destroy->nlportid = notify->portid;
12499 spin_lock(&rdev->destroy_list_lock);
12500 list_add(&destroy->list, &rdev->destroy_list);
12501 spin_unlock(&rdev->destroy_list_lock);
12502 schedule_work(&rdev->destroy_work);
12512 static struct notifier_block nl80211_netlink_notifier = {
12513 .notifier_call = nl80211_netlink_notify,
12516 void cfg80211_ft_event(struct net_device *netdev,
12517 struct cfg80211_ft_event_params *ft_event)
12519 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
12520 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12521 struct sk_buff *msg;
12524 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12526 if (!ft_event->target_ap)
12529 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12533 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
12537 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12538 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12539 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12542 if (ft_event->ies &&
12543 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12545 if (ft_event->ric_ies &&
12546 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12547 ft_event->ric_ies))
12550 genlmsg_end(msg, hdr);
12552 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12553 NL80211_MCGRP_MLME, GFP_KERNEL);
12558 EXPORT_SYMBOL(cfg80211_ft_event);
12560 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12562 struct cfg80211_registered_device *rdev;
12563 struct sk_buff *msg;
12567 rdev = wiphy_to_rdev(wdev->wiphy);
12568 if (!rdev->crit_proto_nlportid)
12571 nlportid = rdev->crit_proto_nlportid;
12572 rdev->crit_proto_nlportid = 0;
12574 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12578 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12580 goto nla_put_failure;
12582 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12583 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12584 goto nla_put_failure;
12586 genlmsg_end(msg, hdr);
12588 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12593 genlmsg_cancel(msg, hdr);
12597 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12599 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12601 struct wiphy *wiphy = wdev->wiphy;
12602 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12603 struct sk_buff *msg;
12606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12610 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12614 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12615 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12616 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12619 genlmsg_end(msg, hdr);
12621 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12622 NL80211_MCGRP_MLME, GFP_KERNEL);
12628 /* initialisation/exit functions */
12630 int nl80211_init(void)
12634 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12639 err = netlink_register_notifier(&nl80211_netlink_notifier);
12645 genl_unregister_family(&nl80211_fam);
12649 void nl80211_exit(void)
12651 netlink_unregister_notifier(&nl80211_netlink_notifier);
12652 genl_unregister_family(&nl80211_fam);