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 WARN_ON(!cfg80211_chandef_valid(chandef));
2322 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2323 chandef->chan->center_freq))
2325 switch (chandef->width) {
2326 case NL80211_CHAN_WIDTH_20_NOHT:
2327 case NL80211_CHAN_WIDTH_20:
2328 case NL80211_CHAN_WIDTH_40:
2329 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2330 cfg80211_get_chandef_type(chandef)))
2336 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2338 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2340 if (chandef->center_freq2 &&
2341 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2346 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2347 struct cfg80211_registered_device *rdev,
2348 struct wireless_dev *wdev, bool removal)
2350 struct net_device *dev = wdev->netdev;
2351 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2355 cmd = NL80211_CMD_DEL_INTERFACE;
2357 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2362 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2363 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2364 goto nla_put_failure;
2366 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2367 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2368 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2369 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2370 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2371 rdev->devlist_generation ^
2372 (cfg80211_rdev_list_generation << 2)))
2373 goto nla_put_failure;
2375 if (rdev->ops->get_channel) {
2377 struct cfg80211_chan_def chandef;
2379 ret = rdev_get_channel(rdev, wdev, &chandef);
2381 if (nl80211_send_chandef(msg, &chandef))
2382 goto nla_put_failure;
2386 if (wdev->ssid_len) {
2387 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2388 goto nla_put_failure;
2391 return genlmsg_end(msg, hdr);
2394 genlmsg_cancel(msg, hdr);
2398 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2402 int wp_start = cb->args[0];
2403 int if_start = cb->args[1];
2404 struct cfg80211_registered_device *rdev;
2405 struct wireless_dev *wdev;
2408 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2409 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2411 if (wp_idx < wp_start) {
2417 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2418 if (if_idx < if_start) {
2422 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2423 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2424 rdev, wdev, false) < 0) {
2435 cb->args[0] = wp_idx;
2436 cb->args[1] = if_idx;
2441 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2443 struct sk_buff *msg;
2444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2445 struct wireless_dev *wdev = info->user_ptr[1];
2447 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2451 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2452 rdev, wdev, false) < 0) {
2457 return genlmsg_reply(msg, info);
2460 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2461 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2462 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2463 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2464 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2465 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2466 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2469 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2471 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2479 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2480 nla, mntr_flags_policy))
2483 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2485 *mntrflags |= (1<<flag);
2490 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2491 struct net_device *netdev, u8 use_4addr,
2492 enum nl80211_iftype iftype)
2495 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2501 case NL80211_IFTYPE_AP_VLAN:
2502 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2505 case NL80211_IFTYPE_STATION:
2506 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2516 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2518 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2519 struct vif_params params;
2521 enum nl80211_iftype otype, ntype;
2522 struct net_device *dev = info->user_ptr[1];
2523 u32 _flags, *flags = NULL;
2524 bool change = false;
2526 memset(¶ms, 0, sizeof(params));
2528 otype = ntype = dev->ieee80211_ptr->iftype;
2530 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2531 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2534 if (ntype > NL80211_IFTYPE_MAX)
2538 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2539 struct wireless_dev *wdev = dev->ieee80211_ptr;
2541 if (ntype != NL80211_IFTYPE_MESH_POINT)
2543 if (netif_running(dev))
2547 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2548 IEEE80211_MAX_MESH_ID_LEN);
2549 wdev->mesh_id_up_len =
2550 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2551 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2552 wdev->mesh_id_up_len);
2556 if (info->attrs[NL80211_ATTR_4ADDR]) {
2557 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2559 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2563 params.use_4addr = -1;
2566 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2567 if (ntype != NL80211_IFTYPE_MONITOR)
2569 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2578 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2579 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2583 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2587 if (!err && params.use_4addr != -1)
2588 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2593 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2596 struct vif_params params;
2597 struct wireless_dev *wdev;
2598 struct sk_buff *msg, *event;
2600 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2603 /* to avoid failing a new interface creation due to pending removal */
2604 cfg80211_destroy_ifaces(rdev);
2606 memset(¶ms, 0, sizeof(params));
2608 if (!info->attrs[NL80211_ATTR_IFNAME])
2611 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2612 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2613 if (type > NL80211_IFTYPE_MAX)
2617 if (!rdev->ops->add_virtual_intf ||
2618 !(rdev->wiphy.interface_modes & (1 << type)))
2621 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2622 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2623 info->attrs[NL80211_ATTR_MAC]) {
2624 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2626 if (!is_valid_ether_addr(params.macaddr))
2627 return -EADDRNOTAVAIL;
2630 if (info->attrs[NL80211_ATTR_4ADDR]) {
2631 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2632 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2637 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2641 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2642 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2645 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2646 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2649 wdev = rdev_add_virtual_intf(rdev,
2650 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2651 type, err ? NULL : &flags, ¶ms);
2652 if (WARN_ON(!wdev)) {
2655 } else if (IS_ERR(wdev)) {
2657 return PTR_ERR(wdev);
2660 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2661 wdev->owner_nlportid = info->snd_portid;
2664 case NL80211_IFTYPE_MESH_POINT:
2665 if (!info->attrs[NL80211_ATTR_MESH_ID])
2668 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2669 IEEE80211_MAX_MESH_ID_LEN);
2670 wdev->mesh_id_up_len =
2671 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2672 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2673 wdev->mesh_id_up_len);
2676 case NL80211_IFTYPE_P2P_DEVICE:
2678 * P2P Device doesn't have a netdev, so doesn't go
2679 * through the netdev notifier and must be added here
2681 mutex_init(&wdev->mtx);
2682 INIT_LIST_HEAD(&wdev->event_list);
2683 spin_lock_init(&wdev->event_lock);
2684 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2685 spin_lock_init(&wdev->mgmt_registrations_lock);
2687 wdev->identifier = ++rdev->wdev_id;
2688 list_add_rcu(&wdev->list, &rdev->wdev_list);
2689 rdev->devlist_generation++;
2695 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2696 rdev, wdev, false) < 0) {
2701 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2703 if (nl80211_send_iface(event, 0, 0, 0,
2704 rdev, wdev, false) < 0) {
2709 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2710 event, 0, NL80211_MCGRP_CONFIG,
2715 return genlmsg_reply(msg, info);
2718 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2720 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2721 struct wireless_dev *wdev = info->user_ptr[1];
2722 struct sk_buff *msg;
2725 if (!rdev->ops->del_virtual_intf)
2728 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2729 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2735 * If we remove a wireless device without a netdev then clear
2736 * user_ptr[1] so that nl80211_post_doit won't dereference it
2737 * to check if it needs to do dev_put(). Otherwise it crashes
2738 * since the wdev has been freed, unlike with a netdev where
2739 * we need the dev_put() for the netdev to really be freed.
2742 info->user_ptr[1] = NULL;
2744 status = rdev_del_virtual_intf(rdev, wdev);
2745 if (status >= 0 && msg)
2746 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2747 msg, 0, NL80211_MCGRP_CONFIG,
2755 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2757 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2758 struct net_device *dev = info->user_ptr[1];
2761 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2764 if (!rdev->ops->set_noack_map)
2767 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2769 return rdev_set_noack_map(rdev, dev, noack_map);
2772 struct get_key_cookie {
2773 struct sk_buff *msg;
2778 static void get_key_callback(void *c, struct key_params *params)
2781 struct get_key_cookie *cookie = c;
2784 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2785 params->key_len, params->key)) ||
2787 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2788 params->seq_len, params->seq)) ||
2790 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2792 goto nla_put_failure;
2794 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2796 goto nla_put_failure;
2799 nla_put(cookie->msg, NL80211_KEY_DATA,
2800 params->key_len, params->key)) ||
2802 nla_put(cookie->msg, NL80211_KEY_SEQ,
2803 params->seq_len, params->seq)) ||
2805 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2807 goto nla_put_failure;
2809 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2810 goto nla_put_failure;
2812 nla_nest_end(cookie->msg, key);
2819 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2821 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2823 struct net_device *dev = info->user_ptr[1];
2825 const u8 *mac_addr = NULL;
2827 struct get_key_cookie cookie = {
2831 struct sk_buff *msg;
2833 if (info->attrs[NL80211_ATTR_KEY_IDX])
2834 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2839 if (info->attrs[NL80211_ATTR_MAC])
2840 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2842 pairwise = !!mac_addr;
2843 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2844 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2845 if (kt >= NUM_NL80211_KEYTYPES)
2847 if (kt != NL80211_KEYTYPE_GROUP &&
2848 kt != NL80211_KEYTYPE_PAIRWISE)
2850 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2853 if (!rdev->ops->get_key)
2856 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2860 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2861 NL80211_CMD_NEW_KEY);
2863 goto nla_put_failure;
2866 cookie.idx = key_idx;
2868 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2869 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2870 goto nla_put_failure;
2872 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2873 goto nla_put_failure;
2875 if (pairwise && mac_addr &&
2876 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2879 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2886 goto nla_put_failure;
2888 genlmsg_end(msg, hdr);
2889 return genlmsg_reply(msg, info);
2898 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2900 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2901 struct key_parse key;
2903 struct net_device *dev = info->user_ptr[1];
2905 err = nl80211_parse_key(info, &key);
2912 /* only support setting default key */
2913 if (!key.def && !key.defmgmt)
2916 wdev_lock(dev->ieee80211_ptr);
2919 if (!rdev->ops->set_default_key) {
2924 err = nl80211_key_allowed(dev->ieee80211_ptr);
2928 err = rdev_set_default_key(rdev, dev, key.idx,
2929 key.def_uni, key.def_multi);
2934 #ifdef CONFIG_CFG80211_WEXT
2935 dev->ieee80211_ptr->wext.default_key = key.idx;
2938 if (key.def_uni || !key.def_multi) {
2943 if (!rdev->ops->set_default_mgmt_key) {
2948 err = nl80211_key_allowed(dev->ieee80211_ptr);
2952 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2956 #ifdef CONFIG_CFG80211_WEXT
2957 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2962 wdev_unlock(dev->ieee80211_ptr);
2967 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2969 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2971 struct net_device *dev = info->user_ptr[1];
2972 struct key_parse key;
2973 const u8 *mac_addr = NULL;
2975 err = nl80211_parse_key(info, &key);
2982 if (info->attrs[NL80211_ATTR_MAC])
2983 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2985 if (key.type == -1) {
2987 key.type = NL80211_KEYTYPE_PAIRWISE;
2989 key.type = NL80211_KEYTYPE_GROUP;
2993 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2994 key.type != NL80211_KEYTYPE_GROUP)
2997 if (!rdev->ops->add_key)
3000 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3001 key.type == NL80211_KEYTYPE_PAIRWISE,
3005 wdev_lock(dev->ieee80211_ptr);
3006 err = nl80211_key_allowed(dev->ieee80211_ptr);
3008 err = rdev_add_key(rdev, dev, key.idx,
3009 key.type == NL80211_KEYTYPE_PAIRWISE,
3011 wdev_unlock(dev->ieee80211_ptr);
3016 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3020 struct net_device *dev = info->user_ptr[1];
3021 u8 *mac_addr = NULL;
3022 struct key_parse key;
3024 err = nl80211_parse_key(info, &key);
3028 if (info->attrs[NL80211_ATTR_MAC])
3029 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3031 if (key.type == -1) {
3033 key.type = NL80211_KEYTYPE_PAIRWISE;
3035 key.type = NL80211_KEYTYPE_GROUP;
3039 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3040 key.type != NL80211_KEYTYPE_GROUP)
3043 if (!rdev->ops->del_key)
3046 wdev_lock(dev->ieee80211_ptr);
3047 err = nl80211_key_allowed(dev->ieee80211_ptr);
3049 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3050 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3054 err = rdev_del_key(rdev, dev, key.idx,
3055 key.type == NL80211_KEYTYPE_PAIRWISE,
3058 #ifdef CONFIG_CFG80211_WEXT
3060 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3061 dev->ieee80211_ptr->wext.default_key = -1;
3062 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3063 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3066 wdev_unlock(dev->ieee80211_ptr);
3071 /* This function returns an error or the number of nested attributes */
3072 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3074 struct nlattr *attr;
3075 int n_entries = 0, tmp;
3077 nla_for_each_nested(attr, nl_attr, tmp) {
3078 if (nla_len(attr) != ETH_ALEN)
3088 * This function parses ACL information and allocates memory for ACL data.
3089 * On successful return, the calling function is responsible to free the
3090 * ACL buffer returned by this function.
3092 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3093 struct genl_info *info)
3095 enum nl80211_acl_policy acl_policy;
3096 struct nlattr *attr;
3097 struct cfg80211_acl_data *acl;
3098 int i = 0, n_entries, tmp;
3100 if (!wiphy->max_acl_mac_addrs)
3101 return ERR_PTR(-EOPNOTSUPP);
3103 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3104 return ERR_PTR(-EINVAL);
3106 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3107 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3108 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3109 return ERR_PTR(-EINVAL);
3111 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3112 return ERR_PTR(-EINVAL);
3114 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3116 return ERR_PTR(n_entries);
3118 if (n_entries > wiphy->max_acl_mac_addrs)
3119 return ERR_PTR(-ENOTSUPP);
3121 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3124 return ERR_PTR(-ENOMEM);
3126 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3127 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3131 acl->n_acl_entries = n_entries;
3132 acl->acl_policy = acl_policy;
3137 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3140 struct net_device *dev = info->user_ptr[1];
3141 struct cfg80211_acl_data *acl;
3144 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3145 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3148 if (!dev->ieee80211_ptr->beacon_interval)
3151 acl = parse_acl_data(&rdev->wiphy, info);
3153 return PTR_ERR(acl);
3155 err = rdev_set_mac_acl(rdev, dev, acl);
3162 static int nl80211_parse_beacon(struct nlattr *attrs[],
3163 struct cfg80211_beacon_data *bcn)
3165 bool haveinfo = false;
3167 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3168 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3169 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3170 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3173 memset(bcn, 0, sizeof(*bcn));
3175 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3176 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3177 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3183 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3184 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3185 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3192 if (attrs[NL80211_ATTR_IE]) {
3193 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3194 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3197 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3198 bcn->proberesp_ies =
3199 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3200 bcn->proberesp_ies_len =
3201 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3204 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3205 bcn->assocresp_ies =
3206 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3207 bcn->assocresp_ies_len =
3208 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3211 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3212 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3213 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3219 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3220 struct cfg80211_ap_settings *params)
3222 struct wireless_dev *wdev;
3225 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3226 if (wdev->iftype != NL80211_IFTYPE_AP &&
3227 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3230 if (!wdev->preset_chandef.chan)
3233 params->chandef = wdev->preset_chandef;
3241 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3242 enum nl80211_auth_type auth_type,
3243 enum nl80211_commands cmd)
3245 if (auth_type > NL80211_AUTHTYPE_MAX)
3249 case NL80211_CMD_AUTHENTICATE:
3250 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3251 auth_type == NL80211_AUTHTYPE_SAE)
3254 case NL80211_CMD_CONNECT:
3255 case NL80211_CMD_START_AP:
3256 /* SAE not supported yet */
3257 if (auth_type == NL80211_AUTHTYPE_SAE)
3265 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3267 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3268 struct net_device *dev = info->user_ptr[1];
3269 struct wireless_dev *wdev = dev->ieee80211_ptr;
3270 struct cfg80211_ap_settings params;
3273 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3274 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3277 if (!rdev->ops->start_ap)
3280 if (wdev->beacon_interval)
3283 memset(¶ms, 0, sizeof(params));
3285 /* these are required for START_AP */
3286 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3287 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3288 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3291 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3295 params.beacon_interval =
3296 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3297 params.dtim_period =
3298 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3300 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3305 * In theory, some of these attributes should be required here
3306 * but since they were not used when the command was originally
3307 * added, keep them optional for old user space programs to let
3308 * them continue to work with drivers that do not need the
3309 * additional information -- drivers must check!
3311 if (info->attrs[NL80211_ATTR_SSID]) {
3312 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3314 nla_len(info->attrs[NL80211_ATTR_SSID]);
3315 if (params.ssid_len == 0 ||
3316 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3320 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3321 params.hidden_ssid = nla_get_u32(
3322 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3323 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3324 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3325 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3329 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3331 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3332 params.auth_type = nla_get_u32(
3333 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3334 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3335 NL80211_CMD_START_AP))
3338 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3340 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3341 NL80211_MAX_NR_CIPHER_SUITES);
3345 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3346 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3348 params.inactivity_timeout = nla_get_u16(
3349 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3352 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3353 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3355 params.p2p_ctwindow =
3356 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3357 if (params.p2p_ctwindow > 127)
3359 if (params.p2p_ctwindow != 0 &&
3360 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3364 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3367 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3369 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3372 params.p2p_opp_ps = tmp;
3373 if (params.p2p_opp_ps != 0 &&
3374 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3378 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3379 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3382 } else if (wdev->preset_chandef.chan) {
3383 params.chandef = wdev->preset_chandef;
3384 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3387 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
3391 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3392 params.acl = parse_acl_data(&rdev->wiphy, info);
3393 if (IS_ERR(params.acl))
3394 return PTR_ERR(params.acl);
3397 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3399 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3400 switch (params.smps_mode) {
3401 case NL80211_SMPS_OFF:
3403 case NL80211_SMPS_STATIC:
3404 if (!(rdev->wiphy.features &
3405 NL80211_FEATURE_STATIC_SMPS))
3408 case NL80211_SMPS_DYNAMIC:
3409 if (!(rdev->wiphy.features &
3410 NL80211_FEATURE_DYNAMIC_SMPS))
3417 params.smps_mode = NL80211_SMPS_OFF;
3421 err = rdev_start_ap(rdev, dev, ¶ms);
3423 wdev->preset_chandef = params.chandef;
3424 wdev->beacon_interval = params.beacon_interval;
3425 wdev->chandef = params.chandef;
3426 wdev->ssid_len = params.ssid_len;
3427 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3436 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3438 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3439 struct net_device *dev = info->user_ptr[1];
3440 struct wireless_dev *wdev = dev->ieee80211_ptr;
3441 struct cfg80211_beacon_data params;
3444 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3445 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3448 if (!rdev->ops->change_beacon)
3451 if (!wdev->beacon_interval)
3454 err = nl80211_parse_beacon(info->attrs, ¶ms);
3459 err = rdev_change_beacon(rdev, dev, ¶ms);
3465 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3467 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3468 struct net_device *dev = info->user_ptr[1];
3470 return cfg80211_stop_ap(rdev, dev, false);
3473 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3474 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3475 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3476 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3477 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3478 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3479 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3482 static int parse_station_flags(struct genl_info *info,
3483 enum nl80211_iftype iftype,
3484 struct station_parameters *params)
3486 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3491 * Try parsing the new attribute first so userspace
3492 * can specify both for older kernels.
3494 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3496 struct nl80211_sta_flag_update *sta_flags;
3498 sta_flags = nla_data(nla);
3499 params->sta_flags_mask = sta_flags->mask;
3500 params->sta_flags_set = sta_flags->set;
3501 params->sta_flags_set &= params->sta_flags_mask;
3502 if ((params->sta_flags_mask |
3503 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3508 /* if present, parse the old attribute */
3510 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3514 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3515 nla, sta_flags_policy))
3519 * Only allow certain flags for interface types so that
3520 * other attributes are silently ignored. Remember that
3521 * this is backward compatibility code with old userspace
3522 * and shouldn't be hit in other cases anyway.
3525 case NL80211_IFTYPE_AP:
3526 case NL80211_IFTYPE_AP_VLAN:
3527 case NL80211_IFTYPE_P2P_GO:
3528 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3529 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3530 BIT(NL80211_STA_FLAG_WME) |
3531 BIT(NL80211_STA_FLAG_MFP);
3533 case NL80211_IFTYPE_P2P_CLIENT:
3534 case NL80211_IFTYPE_STATION:
3535 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3536 BIT(NL80211_STA_FLAG_TDLS_PEER);
3538 case NL80211_IFTYPE_MESH_POINT:
3539 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3540 BIT(NL80211_STA_FLAG_MFP) |
3541 BIT(NL80211_STA_FLAG_AUTHORIZED);
3546 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3548 params->sta_flags_set |= (1<<flag);
3550 /* no longer support new API additions in old API */
3551 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3559 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3562 struct nlattr *rate;
3566 rate = nla_nest_start(msg, attr);
3570 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3571 bitrate = cfg80211_calculate_bitrate(info);
3572 /* report 16-bit bitrate only if we can */
3573 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3575 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3577 if (bitrate_compat > 0 &&
3578 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3581 if (info->flags & RATE_INFO_FLAGS_MCS) {
3582 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3584 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3585 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3587 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3588 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3590 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3591 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3593 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3595 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3596 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3598 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3599 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3601 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3602 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3604 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3605 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3607 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3608 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3612 nla_nest_end(msg, rate);
3616 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3625 attr = nla_nest_start(msg, id);
3629 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3630 if (!(mask & BIT(i)))
3633 if (nla_put_u8(msg, i, signal[i]))
3637 nla_nest_end(msg, attr);
3642 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3644 struct cfg80211_registered_device *rdev,
3645 struct net_device *dev,
3646 const u8 *mac_addr, struct station_info *sinfo)
3649 struct nlattr *sinfoattr, *bss_param;
3651 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3655 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3656 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3657 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3658 goto nla_put_failure;
3660 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3662 goto nla_put_failure;
3663 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3664 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3665 sinfo->connected_time))
3666 goto nla_put_failure;
3667 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3668 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3669 sinfo->inactive_time))
3670 goto nla_put_failure;
3671 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3672 STATION_INFO_RX_BYTES64)) &&
3673 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3674 (u32)sinfo->rx_bytes))
3675 goto nla_put_failure;
3676 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3677 STATION_INFO_TX_BYTES64)) &&
3678 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3679 (u32)sinfo->tx_bytes))
3680 goto nla_put_failure;
3681 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3682 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3684 goto nla_put_failure;
3685 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3686 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3688 goto nla_put_failure;
3689 if ((sinfo->filled & STATION_INFO_LLID) &&
3690 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3691 goto nla_put_failure;
3692 if ((sinfo->filled & STATION_INFO_PLID) &&
3693 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3694 goto nla_put_failure;
3695 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3696 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3697 sinfo->plink_state))
3698 goto nla_put_failure;
3699 switch (rdev->wiphy.signal_type) {
3700 case CFG80211_SIGNAL_TYPE_MBM:
3701 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3702 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3704 goto nla_put_failure;
3705 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3706 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3708 goto nla_put_failure;
3713 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3714 if (!nl80211_put_signal(msg, sinfo->chains,
3715 sinfo->chain_signal,
3716 NL80211_STA_INFO_CHAIN_SIGNAL))
3717 goto nla_put_failure;
3719 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3720 if (!nl80211_put_signal(msg, sinfo->chains,
3721 sinfo->chain_signal_avg,
3722 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3723 goto nla_put_failure;
3725 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3726 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3727 NL80211_STA_INFO_TX_BITRATE))
3728 goto nla_put_failure;
3730 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3731 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3732 NL80211_STA_INFO_RX_BITRATE))
3733 goto nla_put_failure;
3735 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3736 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3738 goto nla_put_failure;
3739 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3740 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3742 goto nla_put_failure;
3743 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3744 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3746 goto nla_put_failure;
3747 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3748 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3750 goto nla_put_failure;
3751 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3752 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3753 sinfo->expected_throughput))
3754 goto nla_put_failure;
3755 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3756 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3757 sinfo->beacon_loss_count))
3758 goto nla_put_failure;
3759 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3760 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3762 goto nla_put_failure;
3763 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3764 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3766 goto nla_put_failure;
3767 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3768 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3770 goto nla_put_failure;
3771 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3772 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3774 goto nla_put_failure;
3776 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3777 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3778 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3779 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3780 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3781 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3782 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3783 sinfo->bss_param.dtim_period) ||
3784 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3785 sinfo->bss_param.beacon_interval))
3786 goto nla_put_failure;
3788 nla_nest_end(msg, bss_param);
3790 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3791 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3792 sizeof(struct nl80211_sta_flag_update),
3794 goto nla_put_failure;
3795 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3796 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3798 goto nla_put_failure;
3799 nla_nest_end(msg, sinfoattr);
3801 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3802 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3803 sinfo->assoc_req_ies))
3804 goto nla_put_failure;
3806 return genlmsg_end(msg, hdr);
3809 genlmsg_cancel(msg, hdr);
3813 static int nl80211_dump_station(struct sk_buff *skb,
3814 struct netlink_callback *cb)
3816 struct station_info sinfo;
3817 struct cfg80211_registered_device *rdev;
3818 struct wireless_dev *wdev;
3819 u8 mac_addr[ETH_ALEN];
3820 int sta_idx = cb->args[2];
3823 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3827 if (!wdev->netdev) {
3832 if (!rdev->ops->dump_station) {
3838 memset(&sinfo, 0, sizeof(sinfo));
3839 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3846 if (nl80211_send_station(skb,
3847 NETLINK_CB(cb->skb).portid,
3848 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3849 rdev, wdev->netdev, mac_addr,
3858 cb->args[2] = sta_idx;
3861 nl80211_finish_wdev_dump(rdev);
3866 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3868 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3869 struct net_device *dev = info->user_ptr[1];
3870 struct station_info sinfo;
3871 struct sk_buff *msg;
3872 u8 *mac_addr = NULL;
3875 memset(&sinfo, 0, sizeof(sinfo));
3877 if (!info->attrs[NL80211_ATTR_MAC])
3880 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3882 if (!rdev->ops->get_station)
3885 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3889 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3893 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3894 rdev, dev, mac_addr, &sinfo) < 0) {
3899 return genlmsg_reply(msg, info);
3902 int cfg80211_check_station_change(struct wiphy *wiphy,
3903 struct station_parameters *params,
3904 enum cfg80211_station_type statype)
3906 if (params->listen_interval != -1)
3909 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3912 /* When you run into this, adjust the code below for the new flag */
3913 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3916 case CFG80211_STA_MESH_PEER_KERNEL:
3917 case CFG80211_STA_MESH_PEER_USER:
3919 * No ignoring the TDLS flag here -- the userspace mesh
3920 * code doesn't have the bug of including TDLS in the
3923 if (params->sta_flags_mask &
3924 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3925 BIT(NL80211_STA_FLAG_MFP) |
3926 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3929 case CFG80211_STA_TDLS_PEER_SETUP:
3930 case CFG80211_STA_TDLS_PEER_ACTIVE:
3931 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3933 /* ignore since it can't change */
3934 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3937 /* disallow mesh-specific things */
3938 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3940 if (params->local_pm)
3942 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3946 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3947 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3948 /* TDLS can't be set, ... */
3949 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3952 * ... but don't bother the driver with it. This works around
3953 * a hostapd/wpa_supplicant issue -- it always includes the
3954 * TLDS_PEER flag in the mask even for AP mode.
3956 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3959 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3960 /* reject other things that can't change */
3961 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3963 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3965 if (params->supported_rates)
3967 if (params->ext_capab || params->ht_capa || params->vht_capa)
3971 if (statype != CFG80211_STA_AP_CLIENT) {
3977 case CFG80211_STA_AP_MLME_CLIENT:
3978 /* Use this only for authorizing/unauthorizing a station */
3979 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3982 case CFG80211_STA_AP_CLIENT:
3983 /* accept only the listed bits */
3984 if (params->sta_flags_mask &
3985 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3986 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3987 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3988 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3989 BIT(NL80211_STA_FLAG_WME) |
3990 BIT(NL80211_STA_FLAG_MFP)))
3993 /* but authenticated/associated only if driver handles it */
3994 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3995 params->sta_flags_mask &
3996 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3997 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4000 case CFG80211_STA_IBSS:
4001 case CFG80211_STA_AP_STA:
4002 /* reject any changes other than AUTHORIZED */
4003 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4006 case CFG80211_STA_TDLS_PEER_SETUP:
4007 /* reject any changes other than AUTHORIZED or WME */
4008 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4009 BIT(NL80211_STA_FLAG_WME)))
4011 /* force (at least) rates when authorizing */
4012 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4013 !params->supported_rates)
4016 case CFG80211_STA_TDLS_PEER_ACTIVE:
4017 /* reject any changes */
4019 case CFG80211_STA_MESH_PEER_KERNEL:
4020 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4023 case CFG80211_STA_MESH_PEER_USER:
4024 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4031 EXPORT_SYMBOL(cfg80211_check_station_change);
4034 * Get vlan interface making sure it is running and on the right wiphy.
4036 static struct net_device *get_vlan(struct genl_info *info,
4037 struct cfg80211_registered_device *rdev)
4039 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4040 struct net_device *v;
4046 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4048 return ERR_PTR(-ENODEV);
4050 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4055 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4056 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4057 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4062 if (!netif_running(v)) {
4070 return ERR_PTR(ret);
4073 static const struct nla_policy
4074 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4075 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4076 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4079 static int nl80211_parse_sta_wme(struct genl_info *info,
4080 struct station_parameters *params)
4082 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4086 /* parse WME attributes if present */
4087 if (!info->attrs[NL80211_ATTR_STA_WME])
4090 nla = info->attrs[NL80211_ATTR_STA_WME];
4091 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4092 nl80211_sta_wme_policy);
4096 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4097 params->uapsd_queues = nla_get_u8(
4098 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4099 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4102 if (tb[NL80211_STA_WME_MAX_SP])
4103 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4105 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4108 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4113 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4114 struct station_parameters *params)
4116 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4117 params->supported_channels =
4118 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4119 params->supported_channels_len =
4120 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4122 * Need to include at least one (first channel, number of
4123 * channels) tuple for each subband, and must have proper
4124 * tuples for the rest of the data as well.
4126 if (params->supported_channels_len < 2)
4128 if (params->supported_channels_len % 2)
4132 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4133 params->supported_oper_classes =
4134 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4135 params->supported_oper_classes_len =
4136 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4138 * The value of the Length field of the Supported Operating
4139 * Classes element is between 2 and 253.
4141 if (params->supported_oper_classes_len < 2 ||
4142 params->supported_oper_classes_len > 253)
4148 static int nl80211_set_station_tdls(struct genl_info *info,
4149 struct station_parameters *params)
4152 /* Dummy STA entry gets updated once the peer capabilities are known */
4153 if (info->attrs[NL80211_ATTR_PEER_AID])
4154 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4155 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4157 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4158 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4160 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4162 err = nl80211_parse_sta_channel_info(info, params);
4166 return nl80211_parse_sta_wme(info, params);
4169 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4172 struct net_device *dev = info->user_ptr[1];
4173 struct station_parameters params;
4177 memset(¶ms, 0, sizeof(params));
4179 params.listen_interval = -1;
4181 if (!rdev->ops->change_station)
4184 if (info->attrs[NL80211_ATTR_STA_AID])
4187 if (!info->attrs[NL80211_ATTR_MAC])
4190 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4192 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4193 params.supported_rates =
4194 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4195 params.supported_rates_len =
4196 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4199 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4201 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4202 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4205 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4207 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4208 params.ext_capab_len =
4209 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4212 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4215 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4218 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4219 params.plink_action =
4220 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4221 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4225 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4226 params.plink_state =
4227 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4228 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4230 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4233 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4234 enum nl80211_mesh_power_mode pm = nla_get_u32(
4235 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4237 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4238 pm > NL80211_MESH_POWER_MAX)
4241 params.local_pm = pm;
4244 /* Include parameters for TDLS peer (will check later) */
4245 err = nl80211_set_station_tdls(info, ¶ms);
4249 params.vlan = get_vlan(info, rdev);
4250 if (IS_ERR(params.vlan))
4251 return PTR_ERR(params.vlan);
4253 switch (dev->ieee80211_ptr->iftype) {
4254 case NL80211_IFTYPE_AP:
4255 case NL80211_IFTYPE_AP_VLAN:
4256 case NL80211_IFTYPE_P2P_GO:
4257 case NL80211_IFTYPE_P2P_CLIENT:
4258 case NL80211_IFTYPE_STATION:
4259 case NL80211_IFTYPE_ADHOC:
4260 case NL80211_IFTYPE_MESH_POINT:
4267 /* driver will call cfg80211_check_station_change() */
4268 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4272 dev_put(params.vlan);
4277 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4279 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4281 struct net_device *dev = info->user_ptr[1];
4282 struct station_parameters params;
4283 u8 *mac_addr = NULL;
4285 memset(¶ms, 0, sizeof(params));
4287 if (!rdev->ops->add_station)
4290 if (!info->attrs[NL80211_ATTR_MAC])
4293 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4296 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4299 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4300 !info->attrs[NL80211_ATTR_PEER_AID])
4303 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4304 params.supported_rates =
4305 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4306 params.supported_rates_len =
4307 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4308 params.listen_interval =
4309 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4311 if (info->attrs[NL80211_ATTR_PEER_AID])
4312 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4314 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4315 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4318 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4320 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4321 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4324 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4326 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4327 params.ext_capab_len =
4328 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4331 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4333 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4335 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4337 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4339 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4340 params.opmode_notif_used = true;
4341 params.opmode_notif =
4342 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4345 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4346 params.plink_action =
4347 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4348 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4352 err = nl80211_parse_sta_channel_info(info, ¶ms);
4356 err = nl80211_parse_sta_wme(info, ¶ms);
4360 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4363 /* When you run into this, adjust the code below for the new flag */
4364 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4366 switch (dev->ieee80211_ptr->iftype) {
4367 case NL80211_IFTYPE_AP:
4368 case NL80211_IFTYPE_AP_VLAN:
4369 case NL80211_IFTYPE_P2P_GO:
4370 /* ignore WME attributes if iface/sta is not capable */
4371 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4372 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4373 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4375 /* TDLS peers cannot be added */
4376 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4377 info->attrs[NL80211_ATTR_PEER_AID])
4379 /* but don't bother the driver with it */
4380 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4382 /* allow authenticated/associated only if driver handles it */
4383 if (!(rdev->wiphy.features &
4384 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4385 params.sta_flags_mask &
4386 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4387 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4390 /* must be last in here for error handling */
4391 params.vlan = get_vlan(info, rdev);
4392 if (IS_ERR(params.vlan))
4393 return PTR_ERR(params.vlan);
4395 case NL80211_IFTYPE_MESH_POINT:
4396 /* ignore uAPSD data */
4397 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4399 /* associated is disallowed */
4400 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4402 /* TDLS peers cannot be added */
4403 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4404 info->attrs[NL80211_ATTR_PEER_AID])
4407 case NL80211_IFTYPE_STATION:
4408 case NL80211_IFTYPE_P2P_CLIENT:
4409 /* ignore uAPSD data */
4410 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4412 /* these are disallowed */
4413 if (params.sta_flags_mask &
4414 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4415 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4417 /* Only TDLS peers can be added */
4418 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4420 /* Can only add if TDLS ... */
4421 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4423 /* ... with external setup is supported */
4424 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4427 * Older wpa_supplicant versions always mark the TDLS peer
4428 * as authorized, but it shouldn't yet be.
4430 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4436 /* be aware of params.vlan when changing code here */
4438 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4441 dev_put(params.vlan);
4445 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4447 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4448 struct net_device *dev = info->user_ptr[1];
4449 struct station_del_parameters params;
4451 memset(¶ms, 0, sizeof(params));
4453 if (info->attrs[NL80211_ATTR_MAC])
4454 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4456 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4457 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4458 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4459 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4462 if (!rdev->ops->del_station)
4465 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4467 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4468 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4469 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4472 /* Default to Deauthentication frame */
4473 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4476 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4477 params.reason_code =
4478 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4479 if (params.reason_code == 0)
4480 return -EINVAL; /* 0 is reserved */
4482 /* Default to reason code 2 */
4483 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4486 return rdev_del_station(rdev, dev, ¶ms);
4489 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4490 int flags, struct net_device *dev,
4491 u8 *dst, u8 *next_hop,
4492 struct mpath_info *pinfo)
4495 struct nlattr *pinfoattr;
4497 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4501 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4502 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4503 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4504 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4505 goto nla_put_failure;
4507 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4509 goto nla_put_failure;
4510 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4511 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4513 goto nla_put_failure;
4514 if (((pinfo->filled & MPATH_INFO_SN) &&
4515 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4516 ((pinfo->filled & MPATH_INFO_METRIC) &&
4517 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4519 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4520 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4522 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4523 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4525 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4526 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4527 pinfo->discovery_timeout)) ||
4528 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4529 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4530 pinfo->discovery_retries)))
4531 goto nla_put_failure;
4533 nla_nest_end(msg, pinfoattr);
4535 return genlmsg_end(msg, hdr);
4538 genlmsg_cancel(msg, hdr);
4542 static int nl80211_dump_mpath(struct sk_buff *skb,
4543 struct netlink_callback *cb)
4545 struct mpath_info pinfo;
4546 struct cfg80211_registered_device *rdev;
4547 struct wireless_dev *wdev;
4549 u8 next_hop[ETH_ALEN];
4550 int path_idx = cb->args[2];
4553 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4557 if (!rdev->ops->dump_mpath) {
4562 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4568 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4575 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4576 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4577 wdev->netdev, dst, next_hop,
4586 cb->args[2] = path_idx;
4589 nl80211_finish_wdev_dump(rdev);
4593 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4595 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4597 struct net_device *dev = info->user_ptr[1];
4598 struct mpath_info pinfo;
4599 struct sk_buff *msg;
4601 u8 next_hop[ETH_ALEN];
4603 memset(&pinfo, 0, sizeof(pinfo));
4605 if (!info->attrs[NL80211_ATTR_MAC])
4608 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4610 if (!rdev->ops->get_mpath)
4613 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4616 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4620 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4624 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4625 dev, dst, next_hop, &pinfo) < 0) {
4630 return genlmsg_reply(msg, info);
4633 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4635 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4636 struct net_device *dev = info->user_ptr[1];
4638 u8 *next_hop = NULL;
4640 if (!info->attrs[NL80211_ATTR_MAC])
4643 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4646 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4647 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4649 if (!rdev->ops->change_mpath)
4652 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4655 return rdev_change_mpath(rdev, dev, dst, next_hop);
4658 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4660 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4661 struct net_device *dev = info->user_ptr[1];
4663 u8 *next_hop = NULL;
4665 if (!info->attrs[NL80211_ATTR_MAC])
4668 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4671 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4672 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4674 if (!rdev->ops->add_mpath)
4677 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4680 return rdev_add_mpath(rdev, dev, dst, next_hop);
4683 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4685 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4686 struct net_device *dev = info->user_ptr[1];
4689 if (info->attrs[NL80211_ATTR_MAC])
4690 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4692 if (!rdev->ops->del_mpath)
4695 return rdev_del_mpath(rdev, dev, dst);
4698 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4700 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4702 struct net_device *dev = info->user_ptr[1];
4703 struct mpath_info pinfo;
4704 struct sk_buff *msg;
4708 memset(&pinfo, 0, sizeof(pinfo));
4710 if (!info->attrs[NL80211_ATTR_MAC])
4713 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4715 if (!rdev->ops->get_mpp)
4718 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4721 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4725 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4729 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4730 dev, dst, mpp, &pinfo) < 0) {
4735 return genlmsg_reply(msg, info);
4738 static int nl80211_dump_mpp(struct sk_buff *skb,
4739 struct netlink_callback *cb)
4741 struct mpath_info pinfo;
4742 struct cfg80211_registered_device *rdev;
4743 struct wireless_dev *wdev;
4746 int path_idx = cb->args[2];
4749 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4753 if (!rdev->ops->dump_mpp) {
4758 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4764 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4771 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4772 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4773 wdev->netdev, dst, mpp,
4781 cb->args[2] = path_idx;
4784 nl80211_finish_wdev_dump(rdev);
4788 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4790 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4791 struct net_device *dev = info->user_ptr[1];
4792 struct wireless_dev *wdev = dev->ieee80211_ptr;
4793 struct bss_parameters params;
4796 memset(¶ms, 0, sizeof(params));
4797 /* default to not changing parameters */
4798 params.use_cts_prot = -1;
4799 params.use_short_preamble = -1;
4800 params.use_short_slot_time = -1;
4801 params.ap_isolate = -1;
4802 params.ht_opmode = -1;
4803 params.p2p_ctwindow = -1;
4804 params.p2p_opp_ps = -1;
4806 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4807 params.use_cts_prot =
4808 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4809 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4810 params.use_short_preamble =
4811 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4812 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4813 params.use_short_slot_time =
4814 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4815 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4816 params.basic_rates =
4817 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4818 params.basic_rates_len =
4819 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4821 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4822 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4823 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4825 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4827 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4828 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4830 params.p2p_ctwindow =
4831 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4832 if (params.p2p_ctwindow < 0)
4834 if (params.p2p_ctwindow != 0 &&
4835 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4839 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4842 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4844 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4847 params.p2p_opp_ps = tmp;
4848 if (params.p2p_opp_ps &&
4849 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4853 if (!rdev->ops->change_bss)
4856 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4857 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4861 err = rdev_change_bss(rdev, dev, ¶ms);
4867 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4868 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4869 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4870 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4871 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4872 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4873 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4874 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4877 static int parse_reg_rule(struct nlattr *tb[],
4878 struct ieee80211_reg_rule *reg_rule)
4880 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4881 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4883 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4885 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4887 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4889 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4891 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4894 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4896 freq_range->start_freq_khz =
4897 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4898 freq_range->end_freq_khz =
4899 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4900 freq_range->max_bandwidth_khz =
4901 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4903 power_rule->max_eirp =
4904 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4906 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4907 power_rule->max_antenna_gain =
4908 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4910 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4911 reg_rule->dfs_cac_ms =
4912 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4917 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4920 enum nl80211_user_reg_hint_type user_reg_hint_type;
4923 * You should only get this when cfg80211 hasn't yet initialized
4924 * completely when built-in to the kernel right between the time
4925 * window between nl80211_init() and regulatory_init(), if that is
4928 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4929 return -EINPROGRESS;
4931 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4932 user_reg_hint_type =
4933 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4935 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4937 switch (user_reg_hint_type) {
4938 case NL80211_USER_REG_HINT_USER:
4939 case NL80211_USER_REG_HINT_CELL_BASE:
4940 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4943 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4944 return regulatory_hint_user(data, user_reg_hint_type);
4945 case NL80211_USER_REG_HINT_INDOOR:
4946 return regulatory_hint_indoor_user();
4952 static int nl80211_get_mesh_config(struct sk_buff *skb,
4953 struct genl_info *info)
4955 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4956 struct net_device *dev = info->user_ptr[1];
4957 struct wireless_dev *wdev = dev->ieee80211_ptr;
4958 struct mesh_config cur_params;
4961 struct nlattr *pinfoattr;
4962 struct sk_buff *msg;
4964 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4967 if (!rdev->ops->get_mesh_config)
4971 /* If not connected, get default parameters */
4972 if (!wdev->mesh_id_len)
4973 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4975 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4981 /* Draw up a netlink message to send back */
4982 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4985 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4986 NL80211_CMD_GET_MESH_CONFIG);
4989 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4991 goto nla_put_failure;
4992 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4993 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4994 cur_params.dot11MeshRetryTimeout) ||
4995 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4996 cur_params.dot11MeshConfirmTimeout) ||
4997 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4998 cur_params.dot11MeshHoldingTimeout) ||
4999 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5000 cur_params.dot11MeshMaxPeerLinks) ||
5001 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5002 cur_params.dot11MeshMaxRetries) ||
5003 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5004 cur_params.dot11MeshTTL) ||
5005 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5006 cur_params.element_ttl) ||
5007 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5008 cur_params.auto_open_plinks) ||
5009 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5010 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5011 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5012 cur_params.dot11MeshHWMPmaxPREQretries) ||
5013 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5014 cur_params.path_refresh_time) ||
5015 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5016 cur_params.min_discovery_timeout) ||
5017 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5018 cur_params.dot11MeshHWMPactivePathTimeout) ||
5019 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5020 cur_params.dot11MeshHWMPpreqMinInterval) ||
5021 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5022 cur_params.dot11MeshHWMPperrMinInterval) ||
5023 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5024 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5025 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5026 cur_params.dot11MeshHWMPRootMode) ||
5027 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5028 cur_params.dot11MeshHWMPRannInterval) ||
5029 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5030 cur_params.dot11MeshGateAnnouncementProtocol) ||
5031 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5032 cur_params.dot11MeshForwarding) ||
5033 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5034 cur_params.rssi_threshold) ||
5035 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5036 cur_params.ht_opmode) ||
5037 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5038 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5039 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5040 cur_params.dot11MeshHWMProotInterval) ||
5041 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5042 cur_params.dot11MeshHWMPconfirmationInterval) ||
5043 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5044 cur_params.power_mode) ||
5045 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5046 cur_params.dot11MeshAwakeWindowDuration) ||
5047 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5048 cur_params.plink_timeout))
5049 goto nla_put_failure;
5050 nla_nest_end(msg, pinfoattr);
5051 genlmsg_end(msg, hdr);
5052 return genlmsg_reply(msg, info);
5055 genlmsg_cancel(msg, hdr);
5061 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5062 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5063 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5064 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5065 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5066 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5067 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5068 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5069 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5070 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5071 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5072 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5073 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5074 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5075 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5076 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5077 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5078 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5079 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5080 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5081 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5082 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5083 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5084 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5085 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5086 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5087 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5088 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5089 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5092 static const struct nla_policy
5093 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5094 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5095 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5096 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5097 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5098 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5099 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5100 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5101 .len = IEEE80211_MAX_DATA_LEN },
5102 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5105 static int nl80211_parse_mesh_config(struct genl_info *info,
5106 struct mesh_config *cfg,
5109 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5112 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5115 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5117 cfg->param = fn(tb[attr]); \
5118 mask |= (1 << (attr - 1)); \
5123 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5125 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5126 info->attrs[NL80211_ATTR_MESH_CONFIG],
5127 nl80211_meshconf_params_policy))
5130 /* This makes sure that there aren't more than 32 mesh config
5131 * parameters (otherwise our bitfield scheme would not work.) */
5132 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5134 /* Fill in the params struct */
5135 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5136 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5138 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5139 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5141 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5142 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5144 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5145 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5147 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5148 mask, NL80211_MESHCONF_MAX_RETRIES,
5150 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5151 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5152 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5153 mask, NL80211_MESHCONF_ELEMENT_TTL,
5155 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5156 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5158 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5160 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5162 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5163 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5165 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5166 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5168 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5169 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5171 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5173 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5175 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5177 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5181 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5183 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5184 dot11MeshHWMPnetDiameterTraversalTime,
5186 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5189 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5192 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5195 dot11MeshGateAnnouncementProtocol, 0, 1,
5196 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5198 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5199 mask, NL80211_MESHCONF_FORWARDING,
5201 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5202 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5204 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5205 mask, NL80211_MESHCONF_HT_OPMODE,
5207 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5209 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5212 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5215 dot11MeshHWMPconfirmationInterval,
5217 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5219 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5220 NL80211_MESH_POWER_ACTIVE,
5221 NL80211_MESH_POWER_MAX,
5222 mask, NL80211_MESHCONF_POWER_MODE,
5224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5226 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5227 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5228 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5235 #undef FILL_IN_MESH_PARAM_IF_SET
5238 static int nl80211_parse_mesh_setup(struct genl_info *info,
5239 struct mesh_setup *setup)
5241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5242 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5244 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5246 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5247 info->attrs[NL80211_ATTR_MESH_SETUP],
5248 nl80211_mesh_setup_params_policy))
5251 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5252 setup->sync_method =
5253 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5254 IEEE80211_SYNC_METHOD_VENDOR :
5255 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5257 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5258 setup->path_sel_proto =
5259 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5260 IEEE80211_PATH_PROTOCOL_VENDOR :
5261 IEEE80211_PATH_PROTOCOL_HWMP;
5263 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5264 setup->path_metric =
5265 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5266 IEEE80211_PATH_METRIC_VENDOR :
5267 IEEE80211_PATH_METRIC_AIRTIME;
5270 if (tb[NL80211_MESH_SETUP_IE]) {
5271 struct nlattr *ieattr =
5272 tb[NL80211_MESH_SETUP_IE];
5273 if (!is_valid_ie_attr(ieattr))
5275 setup->ie = nla_data(ieattr);
5276 setup->ie_len = nla_len(ieattr);
5278 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5279 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5281 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5282 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5283 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5284 if (setup->is_secure)
5285 setup->user_mpm = true;
5287 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5288 if (!setup->user_mpm)
5291 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5297 static int nl80211_update_mesh_config(struct sk_buff *skb,
5298 struct genl_info *info)
5300 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5301 struct net_device *dev = info->user_ptr[1];
5302 struct wireless_dev *wdev = dev->ieee80211_ptr;
5303 struct mesh_config cfg;
5307 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5310 if (!rdev->ops->update_mesh_config)
5313 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5318 if (!wdev->mesh_id_len)
5322 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5329 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5331 const struct ieee80211_regdomain *regdom;
5332 struct sk_buff *msg;
5334 struct nlattr *nl_reg_rules;
5337 if (!cfg80211_regdomain)
5340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5344 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5345 NL80211_CMD_GET_REG);
5349 if (reg_last_request_cell_base() &&
5350 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5351 NL80211_USER_REG_HINT_CELL_BASE))
5352 goto nla_put_failure;
5355 regdom = rcu_dereference(cfg80211_regdomain);
5357 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5358 (regdom->dfs_region &&
5359 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5360 goto nla_put_failure_rcu;
5362 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5364 goto nla_put_failure_rcu;
5366 for (i = 0; i < regdom->n_reg_rules; i++) {
5367 struct nlattr *nl_reg_rule;
5368 const struct ieee80211_reg_rule *reg_rule;
5369 const struct ieee80211_freq_range *freq_range;
5370 const struct ieee80211_power_rule *power_rule;
5371 unsigned int max_bandwidth_khz;
5373 reg_rule = ®dom->reg_rules[i];
5374 freq_range = ®_rule->freq_range;
5375 power_rule = ®_rule->power_rule;
5377 nl_reg_rule = nla_nest_start(msg, i);
5379 goto nla_put_failure_rcu;
5381 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5382 if (!max_bandwidth_khz)
5383 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5386 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5388 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5389 freq_range->start_freq_khz) ||
5390 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5391 freq_range->end_freq_khz) ||
5392 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5393 max_bandwidth_khz) ||
5394 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5395 power_rule->max_antenna_gain) ||
5396 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5397 power_rule->max_eirp) ||
5398 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5399 reg_rule->dfs_cac_ms))
5400 goto nla_put_failure_rcu;
5402 nla_nest_end(msg, nl_reg_rule);
5406 nla_nest_end(msg, nl_reg_rules);
5408 genlmsg_end(msg, hdr);
5409 return genlmsg_reply(msg, info);
5411 nla_put_failure_rcu:
5414 genlmsg_cancel(msg, hdr);
5420 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5422 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5423 struct nlattr *nl_reg_rule;
5424 char *alpha2 = NULL;
5425 int rem_reg_rules = 0, r = 0;
5426 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5427 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5428 struct ieee80211_regdomain *rd = NULL;
5430 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5433 if (!info->attrs[NL80211_ATTR_REG_RULES])
5436 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5438 if (info->attrs[NL80211_ATTR_DFS_REGION])
5439 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5441 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5444 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5448 if (!reg_is_valid_request(alpha2))
5451 size_of_regd = sizeof(struct ieee80211_regdomain) +
5452 num_rules * sizeof(struct ieee80211_reg_rule);
5454 rd = kzalloc(size_of_regd, GFP_KERNEL);
5458 rd->n_reg_rules = num_rules;
5459 rd->alpha2[0] = alpha2[0];
5460 rd->alpha2[1] = alpha2[1];
5463 * Disable DFS master mode if the DFS region was
5464 * not supported or known on this kernel.
5466 if (reg_supported_dfs_region(dfs_region))
5467 rd->dfs_region = dfs_region;
5469 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5471 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5472 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5476 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5482 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5489 /* set_regdom took ownership */
5497 static int validate_scan_freqs(struct nlattr *freqs)
5499 struct nlattr *attr1, *attr2;
5500 int n_channels = 0, tmp1, tmp2;
5502 nla_for_each_nested(attr1, freqs, tmp1) {
5505 * Some hardware has a limited channel list for
5506 * scanning, and it is pretty much nonsensical
5507 * to scan for a channel twice, so disallow that
5508 * and don't require drivers to check that the
5509 * channel list they get isn't longer than what
5510 * they can scan, as long as they can scan all
5511 * the channels they registered at once.
5513 nla_for_each_nested(attr2, freqs, tmp2)
5514 if (attr1 != attr2 &&
5515 nla_get_u32(attr1) == nla_get_u32(attr2))
5522 static int nl80211_parse_random_mac(struct nlattr **attrs,
5523 u8 *mac_addr, u8 *mac_addr_mask)
5527 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5528 memset(mac_addr, 0, ETH_ALEN);
5529 memset(mac_addr_mask, 0, ETH_ALEN);
5531 mac_addr_mask[0] = 0x3;
5536 /* need both or none */
5537 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5540 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5541 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5543 /* don't allow or configure an mcast address */
5544 if (!is_multicast_ether_addr(mac_addr_mask) ||
5545 is_multicast_ether_addr(mac_addr))
5549 * allow users to pass a MAC address that has bits set outside
5550 * of the mask, but don't bother drivers with having to deal
5553 for (i = 0; i < ETH_ALEN; i++)
5554 mac_addr[i] &= mac_addr_mask[i];
5559 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5562 struct wireless_dev *wdev = info->user_ptr[1];
5563 struct cfg80211_scan_request *request;
5564 struct nlattr *attr;
5565 struct wiphy *wiphy;
5566 int err, tmp, n_ssids = 0, n_channels, i;
5569 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5572 wiphy = &rdev->wiphy;
5574 if (!rdev->ops->scan)
5577 if (rdev->scan_req || rdev->scan_msg) {
5582 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5583 n_channels = validate_scan_freqs(
5584 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5590 n_channels = ieee80211_get_num_supported_channels(wiphy);
5593 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5594 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5597 if (n_ssids > wiphy->max_scan_ssids) {
5602 if (info->attrs[NL80211_ATTR_IE])
5603 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5607 if (ie_len > wiphy->max_scan_ie_len) {
5612 request = kzalloc(sizeof(*request)
5613 + sizeof(*request->ssids) * n_ssids
5614 + sizeof(*request->channels) * n_channels
5615 + ie_len, GFP_KERNEL);
5622 request->ssids = (void *)&request->channels[n_channels];
5623 request->n_ssids = n_ssids;
5626 request->ie = (void *)(request->ssids + n_ssids);
5628 request->ie = (void *)(request->channels + n_channels);
5632 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5633 /* user specified, bail out if channel not found */
5634 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5635 struct ieee80211_channel *chan;
5637 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5644 /* ignore disabled channels */
5645 if (chan->flags & IEEE80211_CHAN_DISABLED)
5648 request->channels[i] = chan;
5652 enum ieee80211_band band;
5655 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5657 if (!wiphy->bands[band])
5659 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5660 struct ieee80211_channel *chan;
5662 chan = &wiphy->bands[band]->channels[j];
5664 if (chan->flags & IEEE80211_CHAN_DISABLED)
5667 request->channels[i] = chan;
5678 request->n_channels = i;
5681 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5682 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5683 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5687 request->ssids[i].ssid_len = nla_len(attr);
5688 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5693 if (info->attrs[NL80211_ATTR_IE]) {
5694 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5695 memcpy((void *)request->ie,
5696 nla_data(info->attrs[NL80211_ATTR_IE]),
5700 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5701 if (wiphy->bands[i])
5703 (1 << wiphy->bands[i]->n_bitrates) - 1;
5705 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5706 nla_for_each_nested(attr,
5707 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5709 enum ieee80211_band band = nla_type(attr);
5711 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5716 if (!wiphy->bands[band])
5719 err = ieee80211_get_ratemask(wiphy->bands[band],
5722 &request->rates[band]);
5728 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5729 request->flags = nla_get_u32(
5730 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5731 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5732 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5737 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5738 if (!(wiphy->features &
5739 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5744 if (wdev->current_bss) {
5749 err = nl80211_parse_random_mac(info->attrs,
5751 request->mac_addr_mask);
5758 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5760 request->wdev = wdev;
5761 request->wiphy = &rdev->wiphy;
5762 request->scan_start = jiffies;
5764 rdev->scan_req = request;
5765 err = rdev_scan(rdev, request);
5768 nl80211_send_scan_start(rdev, wdev);
5770 dev_hold(wdev->netdev);
5773 rdev->scan_req = NULL;
5781 static struct cfg80211_sched_scan_request *
5782 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
5783 struct nlattr **attrs)
5785 struct cfg80211_sched_scan_request *request;
5786 struct nlattr *attr;
5787 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5789 enum ieee80211_band band;
5791 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5792 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5794 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5795 return ERR_PTR(-EINVAL);
5797 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5798 return ERR_PTR(-EINVAL);
5800 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5802 return ERR_PTR(-EINVAL);
5804 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5805 n_channels = validate_scan_freqs(
5806 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5808 return ERR_PTR(-EINVAL);
5810 n_channels = ieee80211_get_num_supported_channels(wiphy);
5813 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5814 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
5818 if (n_ssids > wiphy->max_sched_scan_ssids)
5819 return ERR_PTR(-EINVAL);
5822 * First, count the number of 'real' matchsets. Due to an issue with
5823 * the old implementation, matchsets containing only the RSSI attribute
5824 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5825 * RSSI for all matchsets, rather than their own matchset for reporting
5826 * all APs with a strong RSSI. This is needed to be compatible with
5827 * older userspace that treated a matchset with only the RSSI as the
5828 * global RSSI for all other matchsets - if there are other matchsets.
5830 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5831 nla_for_each_nested(attr,
5832 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5834 struct nlattr *rssi;
5836 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5837 nla_data(attr), nla_len(attr),
5838 nl80211_match_policy);
5840 return ERR_PTR(err);
5841 /* add other standalone attributes here */
5842 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5846 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5848 default_match_rssi = nla_get_s32(rssi);
5852 /* However, if there's no other matchset, add the RSSI one */
5853 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5856 if (n_match_sets > wiphy->max_match_sets)
5857 return ERR_PTR(-EINVAL);
5859 if (attrs[NL80211_ATTR_IE])
5860 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
5864 if (ie_len > wiphy->max_sched_scan_ie_len)
5865 return ERR_PTR(-EINVAL);
5867 request = kzalloc(sizeof(*request)
5868 + sizeof(*request->ssids) * n_ssids
5869 + sizeof(*request->match_sets) * n_match_sets
5870 + sizeof(*request->channels) * n_channels
5871 + ie_len, GFP_KERNEL);
5873 return ERR_PTR(-ENOMEM);
5876 request->ssids = (void *)&request->channels[n_channels];
5877 request->n_ssids = n_ssids;
5880 request->ie = (void *)(request->ssids + n_ssids);
5882 request->ie = (void *)(request->channels + n_channels);
5887 request->match_sets = (void *)(request->ie + ie_len);
5888 else if (request->ssids)
5889 request->match_sets =
5890 (void *)(request->ssids + n_ssids);
5892 request->match_sets =
5893 (void *)(request->channels + n_channels);
5895 request->n_match_sets = n_match_sets;
5898 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5899 /* user specified, bail out if channel not found */
5900 nla_for_each_nested(attr,
5901 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5903 struct ieee80211_channel *chan;
5905 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5912 /* ignore disabled channels */
5913 if (chan->flags & IEEE80211_CHAN_DISABLED)
5916 request->channels[i] = chan;
5921 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5923 if (!wiphy->bands[band])
5925 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5926 struct ieee80211_channel *chan;
5928 chan = &wiphy->bands[band]->channels[j];
5930 if (chan->flags & IEEE80211_CHAN_DISABLED)
5933 request->channels[i] = chan;
5944 request->n_channels = i;
5947 if (attrs[NL80211_ATTR_SCAN_SSIDS]) {
5948 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
5950 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5954 request->ssids[i].ssid_len = nla_len(attr);
5955 memcpy(request->ssids[i].ssid, nla_data(attr),
5962 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5963 nla_for_each_nested(attr,
5964 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5966 struct nlattr *ssid, *rssi;
5968 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5969 nla_data(attr), nla_len(attr),
5970 nl80211_match_policy);
5973 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5975 if (WARN_ON(i >= n_match_sets)) {
5976 /* this indicates a programming error,
5977 * the loop above should have verified
5984 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5988 memcpy(request->match_sets[i].ssid.ssid,
5989 nla_data(ssid), nla_len(ssid));
5990 request->match_sets[i].ssid.ssid_len =
5992 /* special attribute - old implemenation w/a */
5993 request->match_sets[i].rssi_thold =
5995 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5997 request->match_sets[i].rssi_thold =
6003 /* there was no other matchset, so the RSSI one is alone */
6005 request->match_sets[0].rssi_thold = default_match_rssi;
6007 request->min_rssi_thold = INT_MAX;
6008 for (i = 0; i < n_match_sets; i++)
6009 request->min_rssi_thold =
6010 min(request->match_sets[i].rssi_thold,
6011 request->min_rssi_thold);
6013 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6017 request->ie_len = ie_len;
6018 memcpy((void *)request->ie,
6019 nla_data(attrs[NL80211_ATTR_IE]),
6023 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6024 request->flags = nla_get_u32(
6025 attrs[NL80211_ATTR_SCAN_FLAGS]);
6026 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6027 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6032 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6033 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6035 if (!wdev) /* must be net-detect */
6036 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6038 if (!(wiphy->features & flg)) {
6043 if (wdev && wdev->current_bss) {
6048 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6049 request->mac_addr_mask);
6055 request->interval = interval;
6056 request->scan_start = jiffies;
6062 return ERR_PTR(err);
6065 static int nl80211_start_sched_scan(struct sk_buff *skb,
6066 struct genl_info *info)
6068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6069 struct net_device *dev = info->user_ptr[1];
6070 struct wireless_dev *wdev = dev->ieee80211_ptr;
6073 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6074 !rdev->ops->sched_scan_start)
6077 if (rdev->sched_scan_req)
6078 return -EINPROGRESS;
6080 rdev->sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6082 err = PTR_ERR_OR_ZERO(rdev->sched_scan_req);
6086 err = rdev_sched_scan_start(rdev, dev, rdev->sched_scan_req);
6090 rdev->sched_scan_req->dev = dev;
6091 rdev->sched_scan_req->wiphy = &rdev->wiphy;
6093 nl80211_send_sched_scan(rdev, dev,
6094 NL80211_CMD_START_SCHED_SCAN);
6098 kfree(rdev->sched_scan_req);
6100 rdev->sched_scan_req = NULL;
6104 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6105 struct genl_info *info)
6107 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6109 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6110 !rdev->ops->sched_scan_stop)
6113 return __cfg80211_stop_sched_scan(rdev, false);
6116 static int nl80211_start_radar_detection(struct sk_buff *skb,
6117 struct genl_info *info)
6119 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6120 struct net_device *dev = info->user_ptr[1];
6121 struct wireless_dev *wdev = dev->ieee80211_ptr;
6122 struct cfg80211_chan_def chandef;
6123 enum nl80211_dfs_regions dfs_region;
6124 unsigned int cac_time_ms;
6127 dfs_region = reg_get_dfs_region(wdev->wiphy);
6128 if (dfs_region == NL80211_DFS_UNSET)
6131 err = nl80211_parse_chandef(rdev, info, &chandef);
6135 if (netif_carrier_ok(dev))
6138 if (wdev->cac_started)
6141 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6149 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6152 if (!rdev->ops->start_radar_detection)
6155 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6156 if (WARN_ON(!cac_time_ms))
6157 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6159 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6162 wdev->chandef = chandef;
6163 wdev->cac_started = true;
6164 wdev->cac_start_time = jiffies;
6165 wdev->cac_time_ms = cac_time_ms;
6170 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6172 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6173 struct net_device *dev = info->user_ptr[1];
6174 struct wireless_dev *wdev = dev->ieee80211_ptr;
6175 struct cfg80211_csa_settings params;
6176 /* csa_attrs is defined static to avoid waste of stack size - this
6177 * function is called under RTNL lock, so this should not be a problem.
6179 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6181 bool need_new_beacon = false;
6185 if (!rdev->ops->channel_switch ||
6186 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6189 switch (dev->ieee80211_ptr->iftype) {
6190 case NL80211_IFTYPE_AP:
6191 case NL80211_IFTYPE_P2P_GO:
6192 need_new_beacon = true;
6194 /* useless if AP is not running */
6195 if (!wdev->beacon_interval)
6198 case NL80211_IFTYPE_ADHOC:
6199 if (!wdev->ssid_len)
6202 case NL80211_IFTYPE_MESH_POINT:
6203 if (!wdev->mesh_id_len)
6210 memset(¶ms, 0, sizeof(params));
6212 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6213 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6216 /* only important for AP, IBSS and mesh create IEs internally */
6217 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6220 /* Even though the attribute is u32, the specification says
6221 * u8, so let's make sure we don't overflow.
6223 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6227 params.count = cs_count;
6229 if (!need_new_beacon)
6232 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6236 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6237 info->attrs[NL80211_ATTR_CSA_IES],
6242 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6246 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6249 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6250 if (!len || (len % sizeof(u16)))
6253 params.n_counter_offsets_beacon = len / sizeof(u16);
6254 if (rdev->wiphy.max_num_csa_counters &&
6255 (params.n_counter_offsets_beacon >
6256 rdev->wiphy.max_num_csa_counters))
6259 params.counter_offsets_beacon =
6260 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6262 /* sanity checks - counters should fit and be the same */
6263 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6264 u16 offset = params.counter_offsets_beacon[i];
6266 if (offset >= params.beacon_csa.tail_len)
6269 if (params.beacon_csa.tail[offset] != params.count)
6273 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6274 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6275 if (!len || (len % sizeof(u16)))
6278 params.n_counter_offsets_presp = len / sizeof(u16);
6279 if (rdev->wiphy.max_num_csa_counters &&
6280 (params.n_counter_offsets_beacon >
6281 rdev->wiphy.max_num_csa_counters))
6284 params.counter_offsets_presp =
6285 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6287 /* sanity checks - counters should fit and be the same */
6288 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6289 u16 offset = params.counter_offsets_presp[i];
6291 if (offset >= params.beacon_csa.probe_resp_len)
6294 if (params.beacon_csa.probe_resp[offset] !=
6301 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6305 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
6309 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6316 params.radar_required = true;
6318 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6319 params.block_tx = true;
6322 err = rdev_channel_switch(rdev, dev, ¶ms);
6328 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6330 struct cfg80211_registered_device *rdev,
6331 struct wireless_dev *wdev,
6332 struct cfg80211_internal_bss *intbss)
6334 struct cfg80211_bss *res = &intbss->pub;
6335 const struct cfg80211_bss_ies *ies;
6339 ASSERT_WDEV_LOCK(wdev);
6341 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6342 NL80211_CMD_NEW_SCAN_RESULTS);
6346 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6348 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6349 goto nla_put_failure;
6351 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6352 goto nla_put_failure;
6353 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6354 goto nla_put_failure;
6356 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6358 goto nla_put_failure;
6359 if ((!is_zero_ether_addr(res->bssid) &&
6360 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6361 goto nla_put_failure;
6364 /* indicate whether we have probe response data or not */
6365 if (rcu_access_pointer(res->proberesp_ies) &&
6366 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6367 goto fail_unlock_rcu;
6369 /* this pointer prefers to be pointed to probe response data
6370 * but is always valid
6372 ies = rcu_dereference(res->ies);
6374 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6375 goto fail_unlock_rcu;
6376 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6377 ies->len, ies->data))
6378 goto fail_unlock_rcu;
6381 /* and this pointer is always (unless driver didn't know) beacon data */
6382 ies = rcu_dereference(res->beacon_ies);
6383 if (ies && ies->from_beacon) {
6384 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6385 goto fail_unlock_rcu;
6386 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6387 ies->len, ies->data))
6388 goto fail_unlock_rcu;
6392 if (res->beacon_interval &&
6393 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6394 goto nla_put_failure;
6395 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6396 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6397 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6398 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6399 jiffies_to_msecs(jiffies - intbss->ts)))
6400 goto nla_put_failure;
6402 switch (rdev->wiphy.signal_type) {
6403 case CFG80211_SIGNAL_TYPE_MBM:
6404 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6405 goto nla_put_failure;
6407 case CFG80211_SIGNAL_TYPE_UNSPEC:
6408 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6409 goto nla_put_failure;
6415 switch (wdev->iftype) {
6416 case NL80211_IFTYPE_P2P_CLIENT:
6417 case NL80211_IFTYPE_STATION:
6418 if (intbss == wdev->current_bss &&
6419 nla_put_u32(msg, NL80211_BSS_STATUS,
6420 NL80211_BSS_STATUS_ASSOCIATED))
6421 goto nla_put_failure;
6423 case NL80211_IFTYPE_ADHOC:
6424 if (intbss == wdev->current_bss &&
6425 nla_put_u32(msg, NL80211_BSS_STATUS,
6426 NL80211_BSS_STATUS_IBSS_JOINED))
6427 goto nla_put_failure;
6433 nla_nest_end(msg, bss);
6435 return genlmsg_end(msg, hdr);
6440 genlmsg_cancel(msg, hdr);
6444 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6446 struct cfg80211_registered_device *rdev;
6447 struct cfg80211_internal_bss *scan;
6448 struct wireless_dev *wdev;
6449 int start = cb->args[2], idx = 0;
6452 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6457 spin_lock_bh(&rdev->bss_lock);
6458 cfg80211_bss_expire(rdev);
6460 cb->seq = rdev->bss_generation;
6462 list_for_each_entry(scan, &rdev->bss_list, list) {
6465 if (nl80211_send_bss(skb, cb,
6466 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6467 rdev, wdev, scan) < 0) {
6473 spin_unlock_bh(&rdev->bss_lock);
6477 nl80211_finish_wdev_dump(rdev);
6482 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6483 int flags, struct net_device *dev,
6484 struct survey_info *survey)
6487 struct nlattr *infoattr;
6489 hdr = nl80211hdr_put(msg, portid, seq, flags,
6490 NL80211_CMD_NEW_SURVEY_RESULTS);
6494 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6495 goto nla_put_failure;
6497 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6499 goto nla_put_failure;
6501 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6502 survey->channel->center_freq))
6503 goto nla_put_failure;
6505 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6506 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6507 goto nla_put_failure;
6508 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6509 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6510 goto nla_put_failure;
6511 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6512 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6513 survey->channel_time))
6514 goto nla_put_failure;
6515 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6516 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6517 survey->channel_time_busy))
6518 goto nla_put_failure;
6519 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6520 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6521 survey->channel_time_ext_busy))
6522 goto nla_put_failure;
6523 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6524 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6525 survey->channel_time_rx))
6526 goto nla_put_failure;
6527 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6528 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6529 survey->channel_time_tx))
6530 goto nla_put_failure;
6532 nla_nest_end(msg, infoattr);
6534 return genlmsg_end(msg, hdr);
6537 genlmsg_cancel(msg, hdr);
6541 static int nl80211_dump_survey(struct sk_buff *skb,
6542 struct netlink_callback *cb)
6544 struct survey_info survey;
6545 struct cfg80211_registered_device *rdev;
6546 struct wireless_dev *wdev;
6547 int survey_idx = cb->args[2];
6550 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6554 if (!wdev->netdev) {
6559 if (!rdev->ops->dump_survey) {
6565 struct ieee80211_channel *chan;
6567 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6573 /* Survey without a channel doesn't make sense */
6574 if (!survey.channel) {
6579 chan = ieee80211_get_channel(&rdev->wiphy,
6580 survey.channel->center_freq);
6581 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6586 if (nl80211_send_survey(skb,
6587 NETLINK_CB(cb->skb).portid,
6588 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6589 wdev->netdev, &survey) < 0)
6595 cb->args[2] = survey_idx;
6598 nl80211_finish_wdev_dump(rdev);
6602 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6604 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6605 NL80211_WPA_VERSION_2));
6608 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6610 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6611 struct net_device *dev = info->user_ptr[1];
6612 struct ieee80211_channel *chan;
6613 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6614 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6615 enum nl80211_auth_type auth_type;
6616 struct key_parse key;
6617 bool local_state_change;
6619 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6622 if (!info->attrs[NL80211_ATTR_MAC])
6625 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6628 if (!info->attrs[NL80211_ATTR_SSID])
6631 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6634 err = nl80211_parse_key(info, &key);
6639 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6641 if (!key.p.key || !key.p.key_len)
6643 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6644 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6645 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6646 key.p.key_len != WLAN_KEY_LEN_WEP104))
6658 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6659 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6668 if (!rdev->ops->auth)
6671 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6672 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6675 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6676 chan = nl80211_get_valid_chan(&rdev->wiphy,
6677 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6681 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6682 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6684 if (info->attrs[NL80211_ATTR_IE]) {
6685 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6686 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6689 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6690 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6693 if (auth_type == NL80211_AUTHTYPE_SAE &&
6694 !info->attrs[NL80211_ATTR_SAE_DATA])
6697 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6698 if (auth_type != NL80211_AUTHTYPE_SAE)
6700 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6701 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6702 /* need to include at least Auth Transaction and Status Code */
6703 if (sae_data_len < 4)
6707 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6710 * Since we no longer track auth state, ignore
6711 * requests to only change local state.
6713 if (local_state_change)
6716 wdev_lock(dev->ieee80211_ptr);
6717 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6718 ssid, ssid_len, ie, ie_len,
6719 key.p.key, key.p.key_len, key.idx,
6720 sae_data, sae_data_len);
6721 wdev_unlock(dev->ieee80211_ptr);
6725 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6726 struct genl_info *info,
6727 struct cfg80211_crypto_settings *settings,
6730 memset(settings, 0, sizeof(*settings));
6732 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6734 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6736 proto = nla_get_u16(
6737 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6738 settings->control_port_ethertype = cpu_to_be16(proto);
6739 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6742 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6743 settings->control_port_no_encrypt = true;
6745 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6747 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6751 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6752 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6753 settings->n_ciphers_pairwise = len / sizeof(u32);
6755 if (len % sizeof(u32))
6758 if (settings->n_ciphers_pairwise > cipher_limit)
6761 memcpy(settings->ciphers_pairwise, data, len);
6763 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6764 if (!cfg80211_supported_cipher_suite(
6766 settings->ciphers_pairwise[i]))
6770 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6771 settings->cipher_group =
6772 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6773 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6774 settings->cipher_group))
6778 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6779 settings->wpa_versions =
6780 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6781 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6785 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6789 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6790 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6791 settings->n_akm_suites = len / sizeof(u32);
6793 if (len % sizeof(u32))
6796 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6799 memcpy(settings->akm_suites, data, len);
6805 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6807 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6808 struct net_device *dev = info->user_ptr[1];
6809 struct ieee80211_channel *chan;
6810 struct cfg80211_assoc_request req = {};
6811 const u8 *bssid, *ssid;
6812 int err, ssid_len = 0;
6814 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6817 if (!info->attrs[NL80211_ATTR_MAC] ||
6818 !info->attrs[NL80211_ATTR_SSID] ||
6819 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6822 if (!rdev->ops->assoc)
6825 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6826 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6829 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6831 chan = nl80211_get_valid_chan(&rdev->wiphy,
6832 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6836 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6837 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6839 if (info->attrs[NL80211_ATTR_IE]) {
6840 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6841 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6844 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6845 enum nl80211_mfp mfp =
6846 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6847 if (mfp == NL80211_MFP_REQUIRED)
6849 else if (mfp != NL80211_MFP_NO)
6853 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6854 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6856 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6857 req.flags |= ASSOC_REQ_DISABLE_HT;
6859 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6860 memcpy(&req.ht_capa_mask,
6861 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6862 sizeof(req.ht_capa_mask));
6864 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6865 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6867 memcpy(&req.ht_capa,
6868 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6869 sizeof(req.ht_capa));
6872 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6873 req.flags |= ASSOC_REQ_DISABLE_VHT;
6875 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6876 memcpy(&req.vht_capa_mask,
6877 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6878 sizeof(req.vht_capa_mask));
6880 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6881 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6883 memcpy(&req.vht_capa,
6884 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6885 sizeof(req.vht_capa));
6888 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6889 if (!(rdev->wiphy.features &
6890 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6891 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6893 req.flags |= ASSOC_REQ_USE_RRM;
6896 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6898 wdev_lock(dev->ieee80211_ptr);
6899 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6900 ssid, ssid_len, &req);
6901 wdev_unlock(dev->ieee80211_ptr);
6907 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6910 struct net_device *dev = info->user_ptr[1];
6911 const u8 *ie = NULL, *bssid;
6912 int ie_len = 0, err;
6914 bool local_state_change;
6916 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6919 if (!info->attrs[NL80211_ATTR_MAC])
6922 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6925 if (!rdev->ops->deauth)
6928 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6929 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6932 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6934 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6935 if (reason_code == 0) {
6936 /* Reason Code 0 is reserved */
6940 if (info->attrs[NL80211_ATTR_IE]) {
6941 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6942 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6945 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6947 wdev_lock(dev->ieee80211_ptr);
6948 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6949 local_state_change);
6950 wdev_unlock(dev->ieee80211_ptr);
6954 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6956 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6957 struct net_device *dev = info->user_ptr[1];
6958 const u8 *ie = NULL, *bssid;
6959 int ie_len = 0, err;
6961 bool local_state_change;
6963 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6966 if (!info->attrs[NL80211_ATTR_MAC])
6969 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6972 if (!rdev->ops->disassoc)
6975 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6976 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6979 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6981 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6982 if (reason_code == 0) {
6983 /* Reason Code 0 is reserved */
6987 if (info->attrs[NL80211_ATTR_IE]) {
6988 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6989 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6992 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6994 wdev_lock(dev->ieee80211_ptr);
6995 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6996 local_state_change);
6997 wdev_unlock(dev->ieee80211_ptr);
7002 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7003 int mcast_rate[IEEE80211_NUM_BANDS],
7006 struct wiphy *wiphy = &rdev->wiphy;
7010 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7011 struct ieee80211_supported_band *sband;
7013 sband = wiphy->bands[band];
7017 for (i = 0; i < sband->n_bitrates; i++) {
7018 if (sband->bitrates[i].bitrate == rateval) {
7019 mcast_rate[band] = i + 1;
7029 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7032 struct net_device *dev = info->user_ptr[1];
7033 struct cfg80211_ibss_params ibss;
7034 struct wiphy *wiphy;
7035 struct cfg80211_cached_keys *connkeys = NULL;
7038 memset(&ibss, 0, sizeof(ibss));
7040 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7043 if (!info->attrs[NL80211_ATTR_SSID] ||
7044 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7047 ibss.beacon_interval = 100;
7049 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7050 ibss.beacon_interval =
7051 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7052 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7056 if (!rdev->ops->join_ibss)
7059 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7062 wiphy = &rdev->wiphy;
7064 if (info->attrs[NL80211_ATTR_MAC]) {
7065 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7067 if (!is_valid_ether_addr(ibss.bssid))
7070 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7071 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7073 if (info->attrs[NL80211_ATTR_IE]) {
7074 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7075 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7078 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7082 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7083 NL80211_IFTYPE_ADHOC))
7086 switch (ibss.chandef.width) {
7087 case NL80211_CHAN_WIDTH_5:
7088 case NL80211_CHAN_WIDTH_10:
7089 case NL80211_CHAN_WIDTH_20_NOHT:
7091 case NL80211_CHAN_WIDTH_20:
7092 case NL80211_CHAN_WIDTH_40:
7093 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
7099 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7100 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7102 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7104 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7106 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7107 struct ieee80211_supported_band *sband =
7108 wiphy->bands[ibss.chandef.chan->band];
7110 err = ieee80211_get_ratemask(sband, rates, n_rates,
7116 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7117 memcpy(&ibss.ht_capa_mask,
7118 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7119 sizeof(ibss.ht_capa_mask));
7121 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7122 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7124 memcpy(&ibss.ht_capa,
7125 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7126 sizeof(ibss.ht_capa));
7129 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7130 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7131 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7134 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7137 connkeys = nl80211_parse_connkeys(rdev,
7138 info->attrs[NL80211_ATTR_KEYS],
7140 if (IS_ERR(connkeys))
7141 return PTR_ERR(connkeys);
7143 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7151 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7153 ibss.userspace_handles_dfs =
7154 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7156 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7162 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7165 struct net_device *dev = info->user_ptr[1];
7167 if (!rdev->ops->leave_ibss)
7170 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7173 return cfg80211_leave_ibss(rdev, dev, false);
7176 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7178 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7179 struct net_device *dev = info->user_ptr[1];
7180 int mcast_rate[IEEE80211_NUM_BANDS];
7184 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7185 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
7188 if (!rdev->ops->set_mcast_rate)
7191 memset(mcast_rate, 0, sizeof(mcast_rate));
7193 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7196 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7197 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7200 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7205 static struct sk_buff *
7206 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7207 int approxlen, u32 portid, u32 seq,
7208 enum nl80211_commands cmd,
7209 enum nl80211_attrs attr,
7210 const struct nl80211_vendor_cmd_info *info,
7213 struct sk_buff *skb;
7215 struct nlattr *data;
7217 skb = nlmsg_new(approxlen + 100, gfp);
7221 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7227 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7228 goto nla_put_failure;
7231 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7233 goto nla_put_failure;
7234 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7236 goto nla_put_failure;
7239 data = nla_nest_start(skb, attr);
7241 ((void **)skb->cb)[0] = rdev;
7242 ((void **)skb->cb)[1] = hdr;
7243 ((void **)skb->cb)[2] = data;
7252 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7253 enum nl80211_commands cmd,
7254 enum nl80211_attrs attr,
7255 int vendor_event_idx,
7256 int approxlen, gfp_t gfp)
7258 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7259 const struct nl80211_vendor_cmd_info *info;
7262 case NL80211_CMD_TESTMODE:
7263 if (WARN_ON(vendor_event_idx != -1))
7267 case NL80211_CMD_VENDOR:
7268 if (WARN_ON(vendor_event_idx < 0 ||
7269 vendor_event_idx >= wiphy->n_vendor_events))
7271 info = &wiphy->vendor_events[vendor_event_idx];
7278 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7279 cmd, attr, info, gfp);
7281 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7283 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7285 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7286 void *hdr = ((void **)skb->cb)[1];
7287 struct nlattr *data = ((void **)skb->cb)[2];
7288 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7290 /* clear CB data for netlink core to own from now on */
7291 memset(skb->cb, 0, sizeof(skb->cb));
7293 nla_nest_end(skb, data);
7294 genlmsg_end(skb, hdr);
7296 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7297 mcgrp = NL80211_MCGRP_VENDOR;
7299 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7302 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7304 #ifdef CONFIG_NL80211_TESTMODE
7305 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7307 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7308 struct wireless_dev *wdev =
7309 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7312 if (!rdev->ops->testmode_cmd)
7316 err = PTR_ERR(wdev);
7320 } else if (wdev->wiphy != &rdev->wiphy) {
7324 if (!info->attrs[NL80211_ATTR_TESTDATA])
7327 rdev->cur_cmd_info = info;
7328 err = rdev_testmode_cmd(rdev, wdev,
7329 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7330 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7331 rdev->cur_cmd_info = NULL;
7336 static int nl80211_testmode_dump(struct sk_buff *skb,
7337 struct netlink_callback *cb)
7339 struct cfg80211_registered_device *rdev;
7349 * 0 is a valid index, but not valid for args[0],
7350 * so we need to offset by 1.
7352 phy_idx = cb->args[0] - 1;
7354 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7355 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7360 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7361 nl80211_fam.attrbuf);
7363 err = PTR_ERR(rdev);
7366 phy_idx = rdev->wiphy_idx;
7369 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7371 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7375 data = nla_data((void *)cb->args[1]);
7376 data_len = nla_len((void *)cb->args[1]);
7379 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7385 if (!rdev->ops->testmode_dump) {
7391 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7392 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7393 NL80211_CMD_TESTMODE);
7394 struct nlattr *tmdata;
7399 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7400 genlmsg_cancel(skb, hdr);
7404 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7406 genlmsg_cancel(skb, hdr);
7409 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7410 nla_nest_end(skb, tmdata);
7412 if (err == -ENOBUFS || err == -ENOENT) {
7413 genlmsg_cancel(skb, hdr);
7416 genlmsg_cancel(skb, hdr);
7420 genlmsg_end(skb, hdr);
7425 cb->args[0] = phy_idx + 1;
7432 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7434 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7435 struct net_device *dev = info->user_ptr[1];
7436 struct cfg80211_connect_params connect;
7437 struct wiphy *wiphy;
7438 struct cfg80211_cached_keys *connkeys = NULL;
7441 memset(&connect, 0, sizeof(connect));
7443 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7446 if (!info->attrs[NL80211_ATTR_SSID] ||
7447 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7450 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7452 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7453 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7454 NL80211_CMD_CONNECT))
7457 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7459 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7461 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7462 NL80211_MAX_NR_CIPHER_SUITES);
7466 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7467 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7470 wiphy = &rdev->wiphy;
7472 connect.bg_scan_period = -1;
7473 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7474 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7475 connect.bg_scan_period =
7476 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7479 if (info->attrs[NL80211_ATTR_MAC])
7480 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7481 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7482 connect.bssid_hint =
7483 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7484 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7485 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7487 if (info->attrs[NL80211_ATTR_IE]) {
7488 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7489 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7492 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7493 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7494 if (connect.mfp != NL80211_MFP_REQUIRED &&
7495 connect.mfp != NL80211_MFP_NO)
7498 connect.mfp = NL80211_MFP_NO;
7501 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7502 connect.channel = nl80211_get_valid_chan(
7503 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7504 if (!connect.channel)
7506 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7507 connect.channel_hint = nl80211_get_valid_chan(
7508 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7509 if (!connect.channel_hint)
7513 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7514 connkeys = nl80211_parse_connkeys(rdev,
7515 info->attrs[NL80211_ATTR_KEYS], NULL);
7516 if (IS_ERR(connkeys))
7517 return PTR_ERR(connkeys);
7520 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7521 connect.flags |= ASSOC_REQ_DISABLE_HT;
7523 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7524 memcpy(&connect.ht_capa_mask,
7525 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7526 sizeof(connect.ht_capa_mask));
7528 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7529 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7533 memcpy(&connect.ht_capa,
7534 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7535 sizeof(connect.ht_capa));
7538 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7539 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7541 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7542 memcpy(&connect.vht_capa_mask,
7543 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7544 sizeof(connect.vht_capa_mask));
7546 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7547 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7551 memcpy(&connect.vht_capa,
7552 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7553 sizeof(connect.vht_capa));
7556 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7557 if (!(rdev->wiphy.features &
7558 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7559 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7561 connect.flags |= ASSOC_REQ_USE_RRM;
7564 wdev_lock(dev->ieee80211_ptr);
7565 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7566 wdev_unlock(dev->ieee80211_ptr);
7572 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7575 struct net_device *dev = info->user_ptr[1];
7579 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7580 reason = WLAN_REASON_DEAUTH_LEAVING;
7582 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7587 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7588 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7591 wdev_lock(dev->ieee80211_ptr);
7592 ret = cfg80211_disconnect(rdev, dev, reason, true);
7593 wdev_unlock(dev->ieee80211_ptr);
7597 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7604 if (!info->attrs[NL80211_ATTR_PID])
7607 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7609 net = get_net_ns_by_pid(pid);
7611 return PTR_ERR(net);
7615 /* check if anything to do */
7616 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7617 err = cfg80211_switch_netns(rdev, net);
7623 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7625 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7626 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7627 struct cfg80211_pmksa *pmksa) = NULL;
7628 struct net_device *dev = info->user_ptr[1];
7629 struct cfg80211_pmksa pmksa;
7631 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7633 if (!info->attrs[NL80211_ATTR_MAC])
7636 if (!info->attrs[NL80211_ATTR_PMKID])
7639 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7640 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7642 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7643 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7646 switch (info->genlhdr->cmd) {
7647 case NL80211_CMD_SET_PMKSA:
7648 rdev_ops = rdev->ops->set_pmksa;
7650 case NL80211_CMD_DEL_PMKSA:
7651 rdev_ops = rdev->ops->del_pmksa;
7661 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7664 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7666 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7667 struct net_device *dev = info->user_ptr[1];
7669 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7670 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7673 if (!rdev->ops->flush_pmksa)
7676 return rdev_flush_pmksa(rdev, dev);
7679 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7681 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7682 struct net_device *dev = info->user_ptr[1];
7683 u8 action_code, dialog_token;
7684 u32 peer_capability = 0;
7689 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7690 !rdev->ops->tdls_mgmt)
7693 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7694 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7695 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7696 !info->attrs[NL80211_ATTR_IE] ||
7697 !info->attrs[NL80211_ATTR_MAC])
7700 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7701 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7702 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7703 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7704 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
7705 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7707 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7709 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7710 dialog_token, status_code, peer_capability,
7712 nla_data(info->attrs[NL80211_ATTR_IE]),
7713 nla_len(info->attrs[NL80211_ATTR_IE]));
7716 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7718 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7719 struct net_device *dev = info->user_ptr[1];
7720 enum nl80211_tdls_operation operation;
7723 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7724 !rdev->ops->tdls_oper)
7727 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7728 !info->attrs[NL80211_ATTR_MAC])
7731 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7732 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7734 return rdev_tdls_oper(rdev, dev, peer, operation);
7737 static int nl80211_remain_on_channel(struct sk_buff *skb,
7738 struct genl_info *info)
7740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7741 struct wireless_dev *wdev = info->user_ptr[1];
7742 struct cfg80211_chan_def chandef;
7743 struct sk_buff *msg;
7749 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7750 !info->attrs[NL80211_ATTR_DURATION])
7753 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7755 if (!rdev->ops->remain_on_channel ||
7756 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7760 * We should be on that channel for at least a minimum amount of
7761 * time (10ms) but no longer than the driver supports.
7763 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7764 duration > rdev->wiphy.max_remain_on_channel_duration)
7767 err = nl80211_parse_chandef(rdev, info, &chandef);
7771 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7775 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7776 NL80211_CMD_REMAIN_ON_CHANNEL);
7782 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7788 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7789 goto nla_put_failure;
7791 genlmsg_end(msg, hdr);
7793 return genlmsg_reply(msg, info);
7802 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7803 struct genl_info *info)
7805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7806 struct wireless_dev *wdev = info->user_ptr[1];
7809 if (!info->attrs[NL80211_ATTR_COOKIE])
7812 if (!rdev->ops->cancel_remain_on_channel)
7815 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7817 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7820 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7821 u8 *rates, u8 rates_len)
7826 for (i = 0; i < rates_len; i++) {
7827 int rate = (rates[i] & 0x7f) * 5;
7829 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7830 struct ieee80211_rate *srate =
7831 &sband->bitrates[ridx];
7832 if (rate == srate->bitrate) {
7837 if (ridx == sband->n_bitrates)
7838 return 0; /* rate not found */
7844 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7845 u8 *rates, u8 rates_len,
7846 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7850 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7852 for (i = 0; i < rates_len; i++) {
7855 ridx = rates[i] / 8;
7856 rbit = BIT(rates[i] % 8);
7858 /* check validity */
7859 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7862 /* check availability */
7863 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7872 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7876 switch (vht_mcs_map) {
7877 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7879 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7882 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7885 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7895 static void vht_build_mcs_mask(u16 vht_mcs_map,
7896 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7900 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7901 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7906 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7907 struct nl80211_txrate_vht *txrate,
7908 u16 mcs[NL80211_VHT_NSS_MAX])
7910 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7911 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7914 if (!sband->vht_cap.vht_supported)
7917 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7919 /* Build vht_mcs_mask from VHT capabilities */
7920 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7922 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7923 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7924 mcs[i] = txrate->mcs[i];
7932 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7933 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7934 .len = NL80211_MAX_SUPP_RATES },
7935 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7936 .len = NL80211_MAX_SUPP_HT_RATES },
7937 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7938 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7941 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7942 struct genl_info *info)
7944 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7946 struct cfg80211_bitrate_mask mask;
7948 struct net_device *dev = info->user_ptr[1];
7949 struct nlattr *tx_rates;
7950 struct ieee80211_supported_band *sband;
7953 if (!rdev->ops->set_bitrate_mask)
7956 memset(&mask, 0, sizeof(mask));
7957 /* Default to all rates enabled */
7958 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7959 sband = rdev->wiphy.bands[i];
7964 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7965 memcpy(mask.control[i].ht_mcs,
7966 sband->ht_cap.mcs.rx_mask,
7967 sizeof(mask.control[i].ht_mcs));
7969 if (!sband->vht_cap.vht_supported)
7972 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7973 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7976 /* if no rates are given set it back to the defaults */
7977 if (!info->attrs[NL80211_ATTR_TX_RATES])
7981 * The nested attribute uses enum nl80211_band as the index. This maps
7982 * directly to the enum ieee80211_band values used in cfg80211.
7984 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7985 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7986 enum ieee80211_band band = nla_type(tx_rates);
7989 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7991 sband = rdev->wiphy.bands[band];
7994 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7995 nla_len(tx_rates), nl80211_txattr_policy);
7998 if (tb[NL80211_TXRATE_LEGACY]) {
7999 mask.control[band].legacy = rateset_to_mask(
8001 nla_data(tb[NL80211_TXRATE_LEGACY]),
8002 nla_len(tb[NL80211_TXRATE_LEGACY]));
8003 if ((mask.control[band].legacy == 0) &&
8004 nla_len(tb[NL80211_TXRATE_LEGACY]))
8007 if (tb[NL80211_TXRATE_HT]) {
8008 if (!ht_rateset_to_mask(
8010 nla_data(tb[NL80211_TXRATE_HT]),
8011 nla_len(tb[NL80211_TXRATE_HT]),
8012 mask.control[band].ht_mcs))
8015 if (tb[NL80211_TXRATE_VHT]) {
8016 if (!vht_set_mcs_mask(
8018 nla_data(tb[NL80211_TXRATE_VHT]),
8019 mask.control[band].vht_mcs))
8022 if (tb[NL80211_TXRATE_GI]) {
8023 mask.control[band].gi =
8024 nla_get_u8(tb[NL80211_TXRATE_GI]);
8025 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8029 if (mask.control[band].legacy == 0) {
8030 /* don't allow empty legacy rates if HT or VHT
8031 * are not even supported.
8033 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8034 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8037 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8038 if (mask.control[band].ht_mcs[i])
8041 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8042 if (mask.control[band].vht_mcs[i])
8045 /* legacy and mcs rates may not be both empty */
8051 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8054 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8057 struct wireless_dev *wdev = info->user_ptr[1];
8058 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8060 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8063 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8064 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8066 switch (wdev->iftype) {
8067 case NL80211_IFTYPE_STATION:
8068 case NL80211_IFTYPE_ADHOC:
8069 case NL80211_IFTYPE_P2P_CLIENT:
8070 case NL80211_IFTYPE_AP:
8071 case NL80211_IFTYPE_AP_VLAN:
8072 case NL80211_IFTYPE_MESH_POINT:
8073 case NL80211_IFTYPE_P2P_GO:
8074 case NL80211_IFTYPE_P2P_DEVICE:
8080 /* not much point in registering if we can't reply */
8081 if (!rdev->ops->mgmt_tx)
8084 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8085 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8086 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8089 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8092 struct wireless_dev *wdev = info->user_ptr[1];
8093 struct cfg80211_chan_def chandef;
8097 struct sk_buff *msg = NULL;
8098 struct cfg80211_mgmt_tx_params params = {
8099 .dont_wait_for_ack =
8100 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8103 if (!info->attrs[NL80211_ATTR_FRAME])
8106 if (!rdev->ops->mgmt_tx)
8109 switch (wdev->iftype) {
8110 case NL80211_IFTYPE_P2P_DEVICE:
8111 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8113 case NL80211_IFTYPE_STATION:
8114 case NL80211_IFTYPE_ADHOC:
8115 case NL80211_IFTYPE_P2P_CLIENT:
8116 case NL80211_IFTYPE_AP:
8117 case NL80211_IFTYPE_AP_VLAN:
8118 case NL80211_IFTYPE_MESH_POINT:
8119 case NL80211_IFTYPE_P2P_GO:
8125 if (info->attrs[NL80211_ATTR_DURATION]) {
8126 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8128 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8131 * We should wait on the channel for at least a minimum amount
8132 * of time (10ms) but no longer than the driver supports.
8134 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8135 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8140 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8142 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8145 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8147 /* get the channel if any has been specified, otherwise pass NULL to
8148 * the driver. The latter will use the current one
8150 chandef.chan = NULL;
8151 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8152 err = nl80211_parse_chandef(rdev, info, &chandef);
8157 if (!chandef.chan && params.offchan)
8160 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8161 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8163 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8164 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8167 if (len % sizeof(u16))
8170 params.n_csa_offsets = len / sizeof(u16);
8171 params.csa_offsets =
8172 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8174 /* check that all the offsets fit the frame */
8175 for (i = 0; i < params.n_csa_offsets; i++) {
8176 if (params.csa_offsets[i] >= params.len)
8181 if (!params.dont_wait_for_ack) {
8182 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8186 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8194 params.chan = chandef.chan;
8195 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8200 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8201 goto nla_put_failure;
8203 genlmsg_end(msg, hdr);
8204 return genlmsg_reply(msg, info);
8216 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8218 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8219 struct wireless_dev *wdev = info->user_ptr[1];
8222 if (!info->attrs[NL80211_ATTR_COOKIE])
8225 if (!rdev->ops->mgmt_tx_cancel_wait)
8228 switch (wdev->iftype) {
8229 case NL80211_IFTYPE_STATION:
8230 case NL80211_IFTYPE_ADHOC:
8231 case NL80211_IFTYPE_P2P_CLIENT:
8232 case NL80211_IFTYPE_AP:
8233 case NL80211_IFTYPE_AP_VLAN:
8234 case NL80211_IFTYPE_P2P_GO:
8235 case NL80211_IFTYPE_P2P_DEVICE:
8241 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8243 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8246 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8249 struct wireless_dev *wdev;
8250 struct net_device *dev = info->user_ptr[1];
8255 if (!info->attrs[NL80211_ATTR_PS_STATE])
8258 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8260 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8263 wdev = dev->ieee80211_ptr;
8265 if (!rdev->ops->set_power_mgmt)
8268 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8270 if (state == wdev->ps)
8273 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8279 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8281 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8282 enum nl80211_ps_state ps_state;
8283 struct wireless_dev *wdev;
8284 struct net_device *dev = info->user_ptr[1];
8285 struct sk_buff *msg;
8289 wdev = dev->ieee80211_ptr;
8291 if (!rdev->ops->set_power_mgmt)
8294 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8298 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8299 NL80211_CMD_GET_POWER_SAVE);
8306 ps_state = NL80211_PS_ENABLED;
8308 ps_state = NL80211_PS_DISABLED;
8310 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8311 goto nla_put_failure;
8313 genlmsg_end(msg, hdr);
8314 return genlmsg_reply(msg, info);
8323 static const struct nla_policy
8324 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8325 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8326 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8327 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8328 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8329 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8330 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8333 static int nl80211_set_cqm_txe(struct genl_info *info,
8334 u32 rate, u32 pkts, u32 intvl)
8336 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8337 struct net_device *dev = info->user_ptr[1];
8338 struct wireless_dev *wdev = dev->ieee80211_ptr;
8340 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8343 if (!rdev->ops->set_cqm_txe_config)
8346 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8347 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8350 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8353 static int nl80211_set_cqm_rssi(struct genl_info *info,
8354 s32 threshold, u32 hysteresis)
8356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8357 struct net_device *dev = info->user_ptr[1];
8358 struct wireless_dev *wdev = dev->ieee80211_ptr;
8363 /* disabling - hysteresis should also be zero then */
8367 if (!rdev->ops->set_cqm_rssi_config)
8370 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8371 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8374 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8377 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8379 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8383 cqm = info->attrs[NL80211_ATTR_CQM];
8387 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8388 nl80211_attr_cqm_policy);
8392 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8393 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8394 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8395 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8397 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8400 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8401 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8402 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8403 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8404 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8405 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8407 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8413 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8416 struct net_device *dev = info->user_ptr[1];
8417 struct ocb_setup setup = {};
8420 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8424 return cfg80211_join_ocb(rdev, dev, &setup);
8427 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8429 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8430 struct net_device *dev = info->user_ptr[1];
8432 return cfg80211_leave_ocb(rdev, dev);
8435 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8438 struct net_device *dev = info->user_ptr[1];
8439 struct mesh_config cfg;
8440 struct mesh_setup setup;
8443 /* start with default */
8444 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8445 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8447 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8448 /* and parse parameters if given */
8449 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8454 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8455 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8458 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8459 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8461 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8462 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8463 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8466 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8467 setup.beacon_interval =
8468 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8469 if (setup.beacon_interval < 10 ||
8470 setup.beacon_interval > 10000)
8474 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8476 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8477 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8481 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8482 /* parse additional setup parameters if given */
8483 err = nl80211_parse_mesh_setup(info, &setup);
8489 cfg.auto_open_plinks = false;
8491 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8492 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8496 /* cfg80211_join_mesh() will sort it out */
8497 setup.chandef.chan = NULL;
8500 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8501 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8503 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8504 struct ieee80211_supported_band *sband;
8506 if (!setup.chandef.chan)
8509 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8511 err = ieee80211_get_ratemask(sband, rates, n_rates,
8512 &setup.basic_rates);
8517 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8520 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8523 struct net_device *dev = info->user_ptr[1];
8525 return cfg80211_leave_mesh(rdev, dev);
8529 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8530 struct cfg80211_registered_device *rdev)
8532 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8533 struct nlattr *nl_pats, *nl_pat;
8536 if (!wowlan->n_patterns)
8539 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8543 for (i = 0; i < wowlan->n_patterns; i++) {
8544 nl_pat = nla_nest_start(msg, i + 1);
8547 pat_len = wowlan->patterns[i].pattern_len;
8548 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8549 wowlan->patterns[i].mask) ||
8550 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8551 wowlan->patterns[i].pattern) ||
8552 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8553 wowlan->patterns[i].pkt_offset))
8555 nla_nest_end(msg, nl_pat);
8557 nla_nest_end(msg, nl_pats);
8562 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8563 struct cfg80211_wowlan_tcp *tcp)
8565 struct nlattr *nl_tcp;
8570 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8574 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8575 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8576 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8577 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8578 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8579 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8580 tcp->payload_len, tcp->payload) ||
8581 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8582 tcp->data_interval) ||
8583 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8584 tcp->wake_len, tcp->wake_data) ||
8585 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8586 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8589 if (tcp->payload_seq.len &&
8590 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8591 sizeof(tcp->payload_seq), &tcp->payload_seq))
8594 if (tcp->payload_tok.len &&
8595 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8596 sizeof(tcp->payload_tok) + tcp->tokens_size,
8600 nla_nest_end(msg, nl_tcp);
8605 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8607 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8608 struct sk_buff *msg;
8610 u32 size = NLMSG_DEFAULT_SIZE;
8612 if (!rdev->wiphy.wowlan)
8615 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8616 /* adjust size to have room for all the data */
8617 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8618 rdev->wiphy.wowlan_config->tcp->payload_len +
8619 rdev->wiphy.wowlan_config->tcp->wake_len +
8620 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8623 msg = nlmsg_new(size, GFP_KERNEL);
8627 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8628 NL80211_CMD_GET_WOWLAN);
8630 goto nla_put_failure;
8632 if (rdev->wiphy.wowlan_config) {
8633 struct nlattr *nl_wowlan;
8635 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8637 goto nla_put_failure;
8639 if ((rdev->wiphy.wowlan_config->any &&
8640 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8641 (rdev->wiphy.wowlan_config->disconnect &&
8642 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8643 (rdev->wiphy.wowlan_config->magic_pkt &&
8644 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8645 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8646 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8647 (rdev->wiphy.wowlan_config->eap_identity_req &&
8648 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8649 (rdev->wiphy.wowlan_config->four_way_handshake &&
8650 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8651 (rdev->wiphy.wowlan_config->rfkill_release &&
8652 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8653 goto nla_put_failure;
8655 if (nl80211_send_wowlan_patterns(msg, rdev))
8656 goto nla_put_failure;
8658 if (nl80211_send_wowlan_tcp(msg,
8659 rdev->wiphy.wowlan_config->tcp))
8660 goto nla_put_failure;
8662 nla_nest_end(msg, nl_wowlan);
8665 genlmsg_end(msg, hdr);
8666 return genlmsg_reply(msg, info);
8673 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8674 struct nlattr *attr,
8675 struct cfg80211_wowlan *trig)
8677 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8678 struct cfg80211_wowlan_tcp *cfg;
8679 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8680 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8682 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8685 if (!rdev->wiphy.wowlan->tcp)
8688 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8689 nla_data(attr), nla_len(attr),
8690 nl80211_wowlan_tcp_policy);
8694 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8695 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8696 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8697 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8698 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8699 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8700 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8701 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8704 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8705 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8708 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8709 rdev->wiphy.wowlan->tcp->data_interval_max ||
8710 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8713 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8714 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8717 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8718 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8721 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8722 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8724 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8725 tokens_size = tokln - sizeof(*tok);
8727 if (!tok->len || tokens_size % tok->len)
8729 if (!rdev->wiphy.wowlan->tcp->tok)
8731 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8733 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8735 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8737 if (tok->offset + tok->len > data_size)
8741 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8742 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8743 if (!rdev->wiphy.wowlan->tcp->seq)
8745 if (seq->len == 0 || seq->len > 4)
8747 if (seq->len + seq->offset > data_size)
8751 size = sizeof(*cfg);
8753 size += wake_size + wake_mask_size;
8754 size += tokens_size;
8756 cfg = kzalloc(size, GFP_KERNEL);
8759 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8760 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8761 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8763 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8764 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8768 /* allocate a socket and port for it and use it */
8769 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8770 IPPROTO_TCP, &cfg->sock, 1);
8775 if (inet_csk_get_port(cfg->sock->sk, port)) {
8776 sock_release(cfg->sock);
8780 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8786 cfg->src_port = port;
8789 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8790 cfg->payload_len = data_size;
8791 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8792 memcpy((void *)cfg->payload,
8793 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8796 cfg->payload_seq = *seq;
8797 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8798 cfg->wake_len = wake_size;
8799 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8800 memcpy((void *)cfg->wake_data,
8801 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8803 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8804 data_size + wake_size;
8805 memcpy((void *)cfg->wake_mask,
8806 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8809 cfg->tokens_size = tokens_size;
8810 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8818 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
8819 const struct wiphy_wowlan_support *wowlan,
8820 struct nlattr *attr,
8821 struct cfg80211_wowlan *trig)
8826 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
8830 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
8835 err = nla_parse(tb, NL80211_ATTR_MAX,
8836 nla_data(attr), nla_len(attr),
8841 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
8842 err = PTR_ERR_OR_ZERO(trig->nd_config);
8844 trig->nd_config = NULL;
8851 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8854 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8855 struct cfg80211_wowlan new_triggers = {};
8856 struct cfg80211_wowlan *ntrig;
8857 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8859 bool prev_enabled = rdev->wiphy.wowlan_config;
8864 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8865 cfg80211_rdev_free_wowlan(rdev);
8866 rdev->wiphy.wowlan_config = NULL;
8870 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8871 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8872 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8873 nl80211_wowlan_policy);
8877 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8878 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8880 new_triggers.any = true;
8883 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8884 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8886 new_triggers.disconnect = true;
8889 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8890 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8892 new_triggers.magic_pkt = true;
8895 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8898 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8899 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8901 new_triggers.gtk_rekey_failure = true;
8904 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8905 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8907 new_triggers.eap_identity_req = true;
8910 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8911 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8913 new_triggers.four_way_handshake = true;
8916 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8917 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8919 new_triggers.rfkill_release = true;
8922 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8925 int rem, pat_len, mask_len, pkt_offset;
8926 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8928 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8931 if (n_patterns > wowlan->n_patterns)
8934 new_triggers.patterns = kcalloc(n_patterns,
8935 sizeof(new_triggers.patterns[0]),
8937 if (!new_triggers.patterns)
8940 new_triggers.n_patterns = n_patterns;
8943 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8947 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8948 nla_len(pat), NULL);
8950 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8951 !pat_tb[NL80211_PKTPAT_PATTERN])
8953 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8954 mask_len = DIV_ROUND_UP(pat_len, 8);
8955 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8957 if (pat_len > wowlan->pattern_max_len ||
8958 pat_len < wowlan->pattern_min_len)
8961 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8964 pkt_offset = nla_get_u32(
8965 pat_tb[NL80211_PKTPAT_OFFSET]);
8966 if (pkt_offset > wowlan->max_pkt_offset)
8968 new_triggers.patterns[i].pkt_offset = pkt_offset;
8970 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8975 new_triggers.patterns[i].mask = mask_pat;
8976 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8978 mask_pat += mask_len;
8979 new_triggers.patterns[i].pattern = mask_pat;
8980 new_triggers.patterns[i].pattern_len = pat_len;
8982 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8988 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8989 err = nl80211_parse_wowlan_tcp(
8990 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8996 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
8997 err = nl80211_parse_wowlan_nd(
8998 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9004 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9009 cfg80211_rdev_free_wowlan(rdev);
9010 rdev->wiphy.wowlan_config = ntrig;
9013 if (rdev->ops->set_wakeup &&
9014 prev_enabled != !!rdev->wiphy.wowlan_config)
9015 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9019 for (i = 0; i < new_triggers.n_patterns; i++)
9020 kfree(new_triggers.patterns[i].mask);
9021 kfree(new_triggers.patterns);
9022 if (new_triggers.tcp && new_triggers.tcp->sock)
9023 sock_release(new_triggers.tcp->sock);
9024 kfree(new_triggers.tcp);
9029 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9030 struct cfg80211_registered_device *rdev)
9032 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9034 struct cfg80211_coalesce_rules *rule;
9036 if (!rdev->coalesce->n_rules)
9039 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9043 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9044 nl_rule = nla_nest_start(msg, i + 1);
9048 rule = &rdev->coalesce->rules[i];
9049 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9053 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9057 nl_pats = nla_nest_start(msg,
9058 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9062 for (j = 0; j < rule->n_patterns; j++) {
9063 nl_pat = nla_nest_start(msg, j + 1);
9066 pat_len = rule->patterns[j].pattern_len;
9067 if (nla_put(msg, NL80211_PKTPAT_MASK,
9068 DIV_ROUND_UP(pat_len, 8),
9069 rule->patterns[j].mask) ||
9070 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9071 rule->patterns[j].pattern) ||
9072 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9073 rule->patterns[j].pkt_offset))
9075 nla_nest_end(msg, nl_pat);
9077 nla_nest_end(msg, nl_pats);
9078 nla_nest_end(msg, nl_rule);
9080 nla_nest_end(msg, nl_rules);
9085 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9087 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9088 struct sk_buff *msg;
9091 if (!rdev->wiphy.coalesce)
9094 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9098 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9099 NL80211_CMD_GET_COALESCE);
9101 goto nla_put_failure;
9103 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9104 goto nla_put_failure;
9106 genlmsg_end(msg, hdr);
9107 return genlmsg_reply(msg, info);
9114 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9116 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9118 struct cfg80211_coalesce_rules *rule;
9123 for (i = 0; i < coalesce->n_rules; i++) {
9124 rule = &coalesce->rules[i];
9125 for (j = 0; j < rule->n_patterns; j++)
9126 kfree(rule->patterns[j].mask);
9127 kfree(rule->patterns);
9129 kfree(coalesce->rules);
9131 rdev->coalesce = NULL;
9134 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9135 struct nlattr *rule,
9136 struct cfg80211_coalesce_rules *new_rule)
9139 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9140 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9141 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9142 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9144 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9145 nla_len(rule), nl80211_coalesce_policy);
9149 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9151 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9152 if (new_rule->delay > coalesce->max_delay)
9155 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9156 new_rule->condition =
9157 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9158 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9159 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9162 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9165 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9168 if (n_patterns > coalesce->n_patterns)
9171 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9173 if (!new_rule->patterns)
9176 new_rule->n_patterns = n_patterns;
9179 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9183 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9184 nla_len(pat), NULL);
9185 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9186 !pat_tb[NL80211_PKTPAT_PATTERN])
9188 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9189 mask_len = DIV_ROUND_UP(pat_len, 8);
9190 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9192 if (pat_len > coalesce->pattern_max_len ||
9193 pat_len < coalesce->pattern_min_len)
9196 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9199 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9200 if (pkt_offset > coalesce->max_pkt_offset)
9202 new_rule->patterns[i].pkt_offset = pkt_offset;
9204 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9208 new_rule->patterns[i].mask = mask_pat;
9209 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9212 mask_pat += mask_len;
9213 new_rule->patterns[i].pattern = mask_pat;
9214 new_rule->patterns[i].pattern_len = pat_len;
9215 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9223 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9225 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9226 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9227 struct cfg80211_coalesce new_coalesce = {};
9228 struct cfg80211_coalesce *n_coalesce;
9229 int err, rem_rule, n_rules = 0, i, j;
9230 struct nlattr *rule;
9231 struct cfg80211_coalesce_rules *tmp_rule;
9233 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9236 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9237 cfg80211_rdev_free_coalesce(rdev);
9238 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9242 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9245 if (n_rules > coalesce->n_rules)
9248 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9250 if (!new_coalesce.rules)
9253 new_coalesce.n_rules = n_rules;
9256 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9258 err = nl80211_parse_coalesce_rule(rdev, rule,
9259 &new_coalesce.rules[i]);
9266 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9270 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9275 cfg80211_rdev_free_coalesce(rdev);
9276 rdev->coalesce = n_coalesce;
9280 for (i = 0; i < new_coalesce.n_rules; i++) {
9281 tmp_rule = &new_coalesce.rules[i];
9282 for (j = 0; j < tmp_rule->n_patterns; j++)
9283 kfree(tmp_rule->patterns[j].mask);
9284 kfree(tmp_rule->patterns);
9286 kfree(new_coalesce.rules);
9291 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9293 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9294 struct net_device *dev = info->user_ptr[1];
9295 struct wireless_dev *wdev = dev->ieee80211_ptr;
9296 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9297 struct cfg80211_gtk_rekey_data rekey_data;
9300 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9303 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9304 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9305 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9306 nl80211_rekey_policy);
9310 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9312 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9314 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9317 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9318 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9319 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9322 if (!wdev->current_bss) {
9327 if (!rdev->ops->set_rekey_data) {
9332 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9338 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9339 struct genl_info *info)
9341 struct net_device *dev = info->user_ptr[1];
9342 struct wireless_dev *wdev = dev->ieee80211_ptr;
9344 if (wdev->iftype != NL80211_IFTYPE_AP &&
9345 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9348 if (wdev->ap_unexpected_nlportid)
9351 wdev->ap_unexpected_nlportid = info->snd_portid;
9355 static int nl80211_probe_client(struct sk_buff *skb,
9356 struct genl_info *info)
9358 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9359 struct net_device *dev = info->user_ptr[1];
9360 struct wireless_dev *wdev = dev->ieee80211_ptr;
9361 struct sk_buff *msg;
9367 if (wdev->iftype != NL80211_IFTYPE_AP &&
9368 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9371 if (!info->attrs[NL80211_ATTR_MAC])
9374 if (!rdev->ops->probe_client)
9377 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9381 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9382 NL80211_CMD_PROBE_CLIENT);
9388 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9390 err = rdev_probe_client(rdev, dev, addr, &cookie);
9394 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9395 goto nla_put_failure;
9397 genlmsg_end(msg, hdr);
9399 return genlmsg_reply(msg, info);
9408 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9410 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9411 struct cfg80211_beacon_registration *reg, *nreg;
9414 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9417 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9421 /* First, check if already registered. */
9422 spin_lock_bh(&rdev->beacon_registrations_lock);
9423 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9424 if (reg->nlportid == info->snd_portid) {
9429 /* Add it to the list */
9430 nreg->nlportid = info->snd_portid;
9431 list_add(&nreg->list, &rdev->beacon_registrations);
9433 spin_unlock_bh(&rdev->beacon_registrations_lock);
9437 spin_unlock_bh(&rdev->beacon_registrations_lock);
9442 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9445 struct wireless_dev *wdev = info->user_ptr[1];
9448 if (!rdev->ops->start_p2p_device)
9451 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9454 if (wdev->p2p_started)
9457 if (rfkill_blocked(rdev->rfkill))
9460 err = rdev_start_p2p_device(rdev, wdev);
9464 wdev->p2p_started = true;
9470 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9473 struct wireless_dev *wdev = info->user_ptr[1];
9475 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9478 if (!rdev->ops->stop_p2p_device)
9481 cfg80211_stop_p2p_device(rdev, wdev);
9486 static int nl80211_get_protocol_features(struct sk_buff *skb,
9487 struct genl_info *info)
9490 struct sk_buff *msg;
9492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9496 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9497 NL80211_CMD_GET_PROTOCOL_FEATURES);
9499 goto nla_put_failure;
9501 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9502 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9503 goto nla_put_failure;
9505 genlmsg_end(msg, hdr);
9506 return genlmsg_reply(msg, info);
9513 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9516 struct cfg80211_update_ft_ies_params ft_params;
9517 struct net_device *dev = info->user_ptr[1];
9519 if (!rdev->ops->update_ft_ies)
9522 if (!info->attrs[NL80211_ATTR_MDID] ||
9523 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9526 memset(&ft_params, 0, sizeof(ft_params));
9527 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9528 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9529 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9531 return rdev_update_ft_ies(rdev, dev, &ft_params);
9534 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9535 struct genl_info *info)
9537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9538 struct wireless_dev *wdev = info->user_ptr[1];
9539 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9543 if (!rdev->ops->crit_proto_start)
9546 if (WARN_ON(!rdev->ops->crit_proto_stop))
9549 if (rdev->crit_proto_nlportid)
9552 /* determine protocol if provided */
9553 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9554 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9556 if (proto >= NUM_NL80211_CRIT_PROTO)
9559 /* timeout must be provided */
9560 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9564 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9566 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9569 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9571 rdev->crit_proto_nlportid = info->snd_portid;
9576 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9577 struct genl_info *info)
9579 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9580 struct wireless_dev *wdev = info->user_ptr[1];
9582 if (!rdev->ops->crit_proto_stop)
9585 if (rdev->crit_proto_nlportid) {
9586 rdev->crit_proto_nlportid = 0;
9587 rdev_crit_proto_stop(rdev, wdev);
9592 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9594 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9595 struct wireless_dev *wdev =
9596 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9600 if (!rdev->wiphy.vendor_commands)
9604 err = PTR_ERR(wdev);
9608 } else if (wdev->wiphy != &rdev->wiphy) {
9612 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9613 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9616 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9617 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9618 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9619 const struct wiphy_vendor_command *vcmd;
9623 vcmd = &rdev->wiphy.vendor_commands[i];
9625 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9628 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9629 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9632 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9636 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9638 !netif_running(wdev->netdev))
9640 if (!wdev->netdev && !wdev->p2p_started)
9647 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9648 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9649 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9652 rdev->cur_cmd_info = info;
9653 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9655 rdev->cur_cmd_info = NULL;
9662 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9663 enum nl80211_commands cmd,
9664 enum nl80211_attrs attr,
9667 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9669 if (WARN_ON(!rdev->cur_cmd_info))
9672 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9673 rdev->cur_cmd_info->snd_portid,
9674 rdev->cur_cmd_info->snd_seq,
9675 cmd, attr, NULL, GFP_KERNEL);
9677 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9679 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9681 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9682 void *hdr = ((void **)skb->cb)[1];
9683 struct nlattr *data = ((void **)skb->cb)[2];
9685 /* clear CB data for netlink core to own from now on */
9686 memset(skb->cb, 0, sizeof(skb->cb));
9688 if (WARN_ON(!rdev->cur_cmd_info)) {
9693 nla_nest_end(skb, data);
9694 genlmsg_end(skb, hdr);
9695 return genlmsg_reply(skb, rdev->cur_cmd_info);
9697 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9700 static int nl80211_set_qos_map(struct sk_buff *skb,
9701 struct genl_info *info)
9703 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9704 struct cfg80211_qos_map *qos_map = NULL;
9705 struct net_device *dev = info->user_ptr[1];
9706 u8 *pos, len, num_des, des_len, des;
9709 if (!rdev->ops->set_qos_map)
9712 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9713 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9714 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9716 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9717 len > IEEE80211_QOS_MAP_LEN_MAX)
9720 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9724 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9727 sizeof(struct cfg80211_dscp_exception);
9728 memcpy(qos_map->dscp_exception, pos, des_len);
9729 qos_map->num_des = num_des;
9730 for (des = 0; des < num_des; des++) {
9731 if (qos_map->dscp_exception[des].up > 7) {
9738 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9741 wdev_lock(dev->ieee80211_ptr);
9742 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9744 ret = rdev_set_qos_map(rdev, dev, qos_map);
9745 wdev_unlock(dev->ieee80211_ptr);
9751 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9753 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9754 struct net_device *dev = info->user_ptr[1];
9755 struct wireless_dev *wdev = dev->ieee80211_ptr;
9758 u16 admitted_time = 0;
9761 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
9764 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9765 !info->attrs[NL80211_ATTR_USER_PRIO])
9768 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9769 if (tsid >= IEEE80211_NUM_TIDS)
9772 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9773 if (up >= IEEE80211_NUM_UPS)
9776 /* WMM uses TIDs 0-7 even for TSPEC */
9777 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
9778 /* TODO: handle 802.11 TSPEC/admission control
9779 * need more attributes for that (e.g. BA session requirement);
9780 * change the WMM adminssion test above to allow both then
9785 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9787 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9789 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9795 switch (wdev->iftype) {
9796 case NL80211_IFTYPE_STATION:
9797 case NL80211_IFTYPE_P2P_CLIENT:
9798 if (wdev->current_bss)
9807 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9814 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9816 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9817 struct net_device *dev = info->user_ptr[1];
9818 struct wireless_dev *wdev = dev->ieee80211_ptr;
9823 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9826 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9827 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9830 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9836 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
9837 struct genl_info *info)
9839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9840 struct net_device *dev = info->user_ptr[1];
9841 struct wireless_dev *wdev = dev->ieee80211_ptr;
9842 struct cfg80211_chan_def chandef = {};
9847 if (!rdev->ops->tdls_channel_switch ||
9848 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9851 switch (dev->ieee80211_ptr->iftype) {
9852 case NL80211_IFTYPE_STATION:
9853 case NL80211_IFTYPE_P2P_CLIENT:
9859 if (!info->attrs[NL80211_ATTR_MAC] ||
9860 !info->attrs[NL80211_ATTR_OPER_CLASS])
9863 err = nl80211_parse_chandef(rdev, info, &chandef);
9868 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
9869 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
9870 * specification is not defined for them.
9872 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
9873 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
9874 chandef.width != NL80211_CHAN_WIDTH_20)
9877 /* we will be active on the TDLS link */
9878 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, wdev->iftype))
9881 /* don't allow switching to DFS channels */
9882 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
9885 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9886 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
9889 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
9895 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
9896 struct genl_info *info)
9898 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9899 struct net_device *dev = info->user_ptr[1];
9900 struct wireless_dev *wdev = dev->ieee80211_ptr;
9903 if (!rdev->ops->tdls_channel_switch ||
9904 !rdev->ops->tdls_cancel_channel_switch ||
9905 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
9908 switch (dev->ieee80211_ptr->iftype) {
9909 case NL80211_IFTYPE_STATION:
9910 case NL80211_IFTYPE_P2P_CLIENT:
9916 if (!info->attrs[NL80211_ATTR_MAC])
9919 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9922 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
9928 #define NL80211_FLAG_NEED_WIPHY 0x01
9929 #define NL80211_FLAG_NEED_NETDEV 0x02
9930 #define NL80211_FLAG_NEED_RTNL 0x04
9931 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9932 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9933 NL80211_FLAG_CHECK_NETDEV_UP)
9934 #define NL80211_FLAG_NEED_WDEV 0x10
9935 /* If a netdev is associated, it must be UP, P2P must be started */
9936 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9937 NL80211_FLAG_CHECK_NETDEV_UP)
9938 #define NL80211_FLAG_CLEAR_SKB 0x20
9940 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9941 struct genl_info *info)
9943 struct cfg80211_registered_device *rdev;
9944 struct wireless_dev *wdev;
9945 struct net_device *dev;
9946 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9951 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9952 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9956 return PTR_ERR(rdev);
9958 info->user_ptr[0] = rdev;
9959 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9960 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9963 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9968 return PTR_ERR(wdev);
9972 rdev = wiphy_to_rdev(wdev->wiphy);
9974 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9981 info->user_ptr[1] = dev;
9983 info->user_ptr[1] = wdev;
9987 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9988 !netif_running(dev)) {
9995 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9996 if (!wdev->p2p_started) {
10003 info->user_ptr[0] = rdev;
10009 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10010 struct genl_info *info)
10012 if (info->user_ptr[1]) {
10013 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10014 struct wireless_dev *wdev = info->user_ptr[1];
10017 dev_put(wdev->netdev);
10019 dev_put(info->user_ptr[1]);
10023 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10026 /* If needed, clear the netlink message payload from the SKB
10027 * as it might contain key data that shouldn't stick around on
10028 * the heap after the SKB is freed. The netlink message header
10029 * is still needed for further processing, so leave it intact.
10031 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10032 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10034 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10038 static const struct genl_ops nl80211_ops[] = {
10040 .cmd = NL80211_CMD_GET_WIPHY,
10041 .doit = nl80211_get_wiphy,
10042 .dumpit = nl80211_dump_wiphy,
10043 .done = nl80211_dump_wiphy_done,
10044 .policy = nl80211_policy,
10045 /* can be retrieved by unprivileged users */
10046 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10047 NL80211_FLAG_NEED_RTNL,
10050 .cmd = NL80211_CMD_SET_WIPHY,
10051 .doit = nl80211_set_wiphy,
10052 .policy = nl80211_policy,
10053 .flags = GENL_ADMIN_PERM,
10054 .internal_flags = NL80211_FLAG_NEED_RTNL,
10057 .cmd = NL80211_CMD_GET_INTERFACE,
10058 .doit = nl80211_get_interface,
10059 .dumpit = nl80211_dump_interface,
10060 .policy = nl80211_policy,
10061 /* can be retrieved by unprivileged users */
10062 .internal_flags = NL80211_FLAG_NEED_WDEV |
10063 NL80211_FLAG_NEED_RTNL,
10066 .cmd = NL80211_CMD_SET_INTERFACE,
10067 .doit = nl80211_set_interface,
10068 .policy = nl80211_policy,
10069 .flags = GENL_ADMIN_PERM,
10070 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10071 NL80211_FLAG_NEED_RTNL,
10074 .cmd = NL80211_CMD_NEW_INTERFACE,
10075 .doit = nl80211_new_interface,
10076 .policy = nl80211_policy,
10077 .flags = GENL_ADMIN_PERM,
10078 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10079 NL80211_FLAG_NEED_RTNL,
10082 .cmd = NL80211_CMD_DEL_INTERFACE,
10083 .doit = nl80211_del_interface,
10084 .policy = nl80211_policy,
10085 .flags = GENL_ADMIN_PERM,
10086 .internal_flags = NL80211_FLAG_NEED_WDEV |
10087 NL80211_FLAG_NEED_RTNL,
10090 .cmd = NL80211_CMD_GET_KEY,
10091 .doit = nl80211_get_key,
10092 .policy = nl80211_policy,
10093 .flags = GENL_ADMIN_PERM,
10094 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10095 NL80211_FLAG_NEED_RTNL,
10098 .cmd = NL80211_CMD_SET_KEY,
10099 .doit = nl80211_set_key,
10100 .policy = nl80211_policy,
10101 .flags = GENL_ADMIN_PERM,
10102 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10103 NL80211_FLAG_NEED_RTNL |
10104 NL80211_FLAG_CLEAR_SKB,
10107 .cmd = NL80211_CMD_NEW_KEY,
10108 .doit = nl80211_new_key,
10109 .policy = nl80211_policy,
10110 .flags = GENL_ADMIN_PERM,
10111 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10112 NL80211_FLAG_NEED_RTNL |
10113 NL80211_FLAG_CLEAR_SKB,
10116 .cmd = NL80211_CMD_DEL_KEY,
10117 .doit = nl80211_del_key,
10118 .policy = nl80211_policy,
10119 .flags = GENL_ADMIN_PERM,
10120 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10121 NL80211_FLAG_NEED_RTNL,
10124 .cmd = NL80211_CMD_SET_BEACON,
10125 .policy = nl80211_policy,
10126 .flags = GENL_ADMIN_PERM,
10127 .doit = nl80211_set_beacon,
10128 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10129 NL80211_FLAG_NEED_RTNL,
10132 .cmd = NL80211_CMD_START_AP,
10133 .policy = nl80211_policy,
10134 .flags = GENL_ADMIN_PERM,
10135 .doit = nl80211_start_ap,
10136 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10137 NL80211_FLAG_NEED_RTNL,
10140 .cmd = NL80211_CMD_STOP_AP,
10141 .policy = nl80211_policy,
10142 .flags = GENL_ADMIN_PERM,
10143 .doit = nl80211_stop_ap,
10144 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10145 NL80211_FLAG_NEED_RTNL,
10148 .cmd = NL80211_CMD_GET_STATION,
10149 .doit = nl80211_get_station,
10150 .dumpit = nl80211_dump_station,
10151 .policy = nl80211_policy,
10152 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10153 NL80211_FLAG_NEED_RTNL,
10156 .cmd = NL80211_CMD_SET_STATION,
10157 .doit = nl80211_set_station,
10158 .policy = nl80211_policy,
10159 .flags = GENL_ADMIN_PERM,
10160 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10161 NL80211_FLAG_NEED_RTNL,
10164 .cmd = NL80211_CMD_NEW_STATION,
10165 .doit = nl80211_new_station,
10166 .policy = nl80211_policy,
10167 .flags = GENL_ADMIN_PERM,
10168 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10169 NL80211_FLAG_NEED_RTNL,
10172 .cmd = NL80211_CMD_DEL_STATION,
10173 .doit = nl80211_del_station,
10174 .policy = nl80211_policy,
10175 .flags = GENL_ADMIN_PERM,
10176 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10177 NL80211_FLAG_NEED_RTNL,
10180 .cmd = NL80211_CMD_GET_MPATH,
10181 .doit = nl80211_get_mpath,
10182 .dumpit = nl80211_dump_mpath,
10183 .policy = nl80211_policy,
10184 .flags = GENL_ADMIN_PERM,
10185 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10186 NL80211_FLAG_NEED_RTNL,
10189 .cmd = NL80211_CMD_GET_MPP,
10190 .doit = nl80211_get_mpp,
10191 .dumpit = nl80211_dump_mpp,
10192 .policy = nl80211_policy,
10193 .flags = GENL_ADMIN_PERM,
10194 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10195 NL80211_FLAG_NEED_RTNL,
10198 .cmd = NL80211_CMD_SET_MPATH,
10199 .doit = nl80211_set_mpath,
10200 .policy = nl80211_policy,
10201 .flags = GENL_ADMIN_PERM,
10202 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10203 NL80211_FLAG_NEED_RTNL,
10206 .cmd = NL80211_CMD_NEW_MPATH,
10207 .doit = nl80211_new_mpath,
10208 .policy = nl80211_policy,
10209 .flags = GENL_ADMIN_PERM,
10210 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10211 NL80211_FLAG_NEED_RTNL,
10214 .cmd = NL80211_CMD_DEL_MPATH,
10215 .doit = nl80211_del_mpath,
10216 .policy = nl80211_policy,
10217 .flags = GENL_ADMIN_PERM,
10218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10219 NL80211_FLAG_NEED_RTNL,
10222 .cmd = NL80211_CMD_SET_BSS,
10223 .doit = nl80211_set_bss,
10224 .policy = nl80211_policy,
10225 .flags = GENL_ADMIN_PERM,
10226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10227 NL80211_FLAG_NEED_RTNL,
10230 .cmd = NL80211_CMD_GET_REG,
10231 .doit = nl80211_get_reg,
10232 .policy = nl80211_policy,
10233 .internal_flags = NL80211_FLAG_NEED_RTNL,
10234 /* can be retrieved by unprivileged users */
10237 .cmd = NL80211_CMD_SET_REG,
10238 .doit = nl80211_set_reg,
10239 .policy = nl80211_policy,
10240 .flags = GENL_ADMIN_PERM,
10241 .internal_flags = NL80211_FLAG_NEED_RTNL,
10244 .cmd = NL80211_CMD_REQ_SET_REG,
10245 .doit = nl80211_req_set_reg,
10246 .policy = nl80211_policy,
10247 .flags = GENL_ADMIN_PERM,
10250 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10251 .doit = nl80211_get_mesh_config,
10252 .policy = nl80211_policy,
10253 /* can be retrieved by unprivileged users */
10254 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10255 NL80211_FLAG_NEED_RTNL,
10258 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10259 .doit = nl80211_update_mesh_config,
10260 .policy = nl80211_policy,
10261 .flags = GENL_ADMIN_PERM,
10262 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10263 NL80211_FLAG_NEED_RTNL,
10266 .cmd = NL80211_CMD_TRIGGER_SCAN,
10267 .doit = nl80211_trigger_scan,
10268 .policy = nl80211_policy,
10269 .flags = GENL_ADMIN_PERM,
10270 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10271 NL80211_FLAG_NEED_RTNL,
10274 .cmd = NL80211_CMD_GET_SCAN,
10275 .policy = nl80211_policy,
10276 .dumpit = nl80211_dump_scan,
10279 .cmd = NL80211_CMD_START_SCHED_SCAN,
10280 .doit = nl80211_start_sched_scan,
10281 .policy = nl80211_policy,
10282 .flags = GENL_ADMIN_PERM,
10283 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10284 NL80211_FLAG_NEED_RTNL,
10287 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10288 .doit = nl80211_stop_sched_scan,
10289 .policy = nl80211_policy,
10290 .flags = GENL_ADMIN_PERM,
10291 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10292 NL80211_FLAG_NEED_RTNL,
10295 .cmd = NL80211_CMD_AUTHENTICATE,
10296 .doit = nl80211_authenticate,
10297 .policy = nl80211_policy,
10298 .flags = GENL_ADMIN_PERM,
10299 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10300 NL80211_FLAG_NEED_RTNL |
10301 NL80211_FLAG_CLEAR_SKB,
10304 .cmd = NL80211_CMD_ASSOCIATE,
10305 .doit = nl80211_associate,
10306 .policy = nl80211_policy,
10307 .flags = GENL_ADMIN_PERM,
10308 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10309 NL80211_FLAG_NEED_RTNL,
10312 .cmd = NL80211_CMD_DEAUTHENTICATE,
10313 .doit = nl80211_deauthenticate,
10314 .policy = nl80211_policy,
10315 .flags = GENL_ADMIN_PERM,
10316 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10317 NL80211_FLAG_NEED_RTNL,
10320 .cmd = NL80211_CMD_DISASSOCIATE,
10321 .doit = nl80211_disassociate,
10322 .policy = nl80211_policy,
10323 .flags = GENL_ADMIN_PERM,
10324 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10325 NL80211_FLAG_NEED_RTNL,
10328 .cmd = NL80211_CMD_JOIN_IBSS,
10329 .doit = nl80211_join_ibss,
10330 .policy = nl80211_policy,
10331 .flags = GENL_ADMIN_PERM,
10332 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10333 NL80211_FLAG_NEED_RTNL,
10336 .cmd = NL80211_CMD_LEAVE_IBSS,
10337 .doit = nl80211_leave_ibss,
10338 .policy = nl80211_policy,
10339 .flags = GENL_ADMIN_PERM,
10340 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10341 NL80211_FLAG_NEED_RTNL,
10343 #ifdef CONFIG_NL80211_TESTMODE
10345 .cmd = NL80211_CMD_TESTMODE,
10346 .doit = nl80211_testmode_do,
10347 .dumpit = nl80211_testmode_dump,
10348 .policy = nl80211_policy,
10349 .flags = GENL_ADMIN_PERM,
10350 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10351 NL80211_FLAG_NEED_RTNL,
10355 .cmd = NL80211_CMD_CONNECT,
10356 .doit = nl80211_connect,
10357 .policy = nl80211_policy,
10358 .flags = GENL_ADMIN_PERM,
10359 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10360 NL80211_FLAG_NEED_RTNL,
10363 .cmd = NL80211_CMD_DISCONNECT,
10364 .doit = nl80211_disconnect,
10365 .policy = nl80211_policy,
10366 .flags = GENL_ADMIN_PERM,
10367 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10368 NL80211_FLAG_NEED_RTNL,
10371 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10372 .doit = nl80211_wiphy_netns,
10373 .policy = nl80211_policy,
10374 .flags = GENL_ADMIN_PERM,
10375 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10376 NL80211_FLAG_NEED_RTNL,
10379 .cmd = NL80211_CMD_GET_SURVEY,
10380 .policy = nl80211_policy,
10381 .dumpit = nl80211_dump_survey,
10384 .cmd = NL80211_CMD_SET_PMKSA,
10385 .doit = nl80211_setdel_pmksa,
10386 .policy = nl80211_policy,
10387 .flags = GENL_ADMIN_PERM,
10388 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10389 NL80211_FLAG_NEED_RTNL,
10392 .cmd = NL80211_CMD_DEL_PMKSA,
10393 .doit = nl80211_setdel_pmksa,
10394 .policy = nl80211_policy,
10395 .flags = GENL_ADMIN_PERM,
10396 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10397 NL80211_FLAG_NEED_RTNL,
10400 .cmd = NL80211_CMD_FLUSH_PMKSA,
10401 .doit = nl80211_flush_pmksa,
10402 .policy = nl80211_policy,
10403 .flags = GENL_ADMIN_PERM,
10404 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10405 NL80211_FLAG_NEED_RTNL,
10408 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10409 .doit = nl80211_remain_on_channel,
10410 .policy = nl80211_policy,
10411 .flags = GENL_ADMIN_PERM,
10412 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10413 NL80211_FLAG_NEED_RTNL,
10416 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10417 .doit = nl80211_cancel_remain_on_channel,
10418 .policy = nl80211_policy,
10419 .flags = GENL_ADMIN_PERM,
10420 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10421 NL80211_FLAG_NEED_RTNL,
10424 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10425 .doit = nl80211_set_tx_bitrate_mask,
10426 .policy = nl80211_policy,
10427 .flags = GENL_ADMIN_PERM,
10428 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10429 NL80211_FLAG_NEED_RTNL,
10432 .cmd = NL80211_CMD_REGISTER_FRAME,
10433 .doit = nl80211_register_mgmt,
10434 .policy = nl80211_policy,
10435 .flags = GENL_ADMIN_PERM,
10436 .internal_flags = NL80211_FLAG_NEED_WDEV |
10437 NL80211_FLAG_NEED_RTNL,
10440 .cmd = NL80211_CMD_FRAME,
10441 .doit = nl80211_tx_mgmt,
10442 .policy = nl80211_policy,
10443 .flags = GENL_ADMIN_PERM,
10444 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10445 NL80211_FLAG_NEED_RTNL,
10448 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10449 .doit = nl80211_tx_mgmt_cancel_wait,
10450 .policy = nl80211_policy,
10451 .flags = GENL_ADMIN_PERM,
10452 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10453 NL80211_FLAG_NEED_RTNL,
10456 .cmd = NL80211_CMD_SET_POWER_SAVE,
10457 .doit = nl80211_set_power_save,
10458 .policy = nl80211_policy,
10459 .flags = GENL_ADMIN_PERM,
10460 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10461 NL80211_FLAG_NEED_RTNL,
10464 .cmd = NL80211_CMD_GET_POWER_SAVE,
10465 .doit = nl80211_get_power_save,
10466 .policy = nl80211_policy,
10467 /* can be retrieved by unprivileged users */
10468 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10469 NL80211_FLAG_NEED_RTNL,
10472 .cmd = NL80211_CMD_SET_CQM,
10473 .doit = nl80211_set_cqm,
10474 .policy = nl80211_policy,
10475 .flags = GENL_ADMIN_PERM,
10476 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10477 NL80211_FLAG_NEED_RTNL,
10480 .cmd = NL80211_CMD_SET_CHANNEL,
10481 .doit = nl80211_set_channel,
10482 .policy = nl80211_policy,
10483 .flags = GENL_ADMIN_PERM,
10484 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10485 NL80211_FLAG_NEED_RTNL,
10488 .cmd = NL80211_CMD_SET_WDS_PEER,
10489 .doit = nl80211_set_wds_peer,
10490 .policy = nl80211_policy,
10491 .flags = GENL_ADMIN_PERM,
10492 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10493 NL80211_FLAG_NEED_RTNL,
10496 .cmd = NL80211_CMD_JOIN_MESH,
10497 .doit = nl80211_join_mesh,
10498 .policy = nl80211_policy,
10499 .flags = GENL_ADMIN_PERM,
10500 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10501 NL80211_FLAG_NEED_RTNL,
10504 .cmd = NL80211_CMD_LEAVE_MESH,
10505 .doit = nl80211_leave_mesh,
10506 .policy = nl80211_policy,
10507 .flags = GENL_ADMIN_PERM,
10508 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10509 NL80211_FLAG_NEED_RTNL,
10512 .cmd = NL80211_CMD_JOIN_OCB,
10513 .doit = nl80211_join_ocb,
10514 .policy = nl80211_policy,
10515 .flags = GENL_ADMIN_PERM,
10516 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10517 NL80211_FLAG_NEED_RTNL,
10520 .cmd = NL80211_CMD_LEAVE_OCB,
10521 .doit = nl80211_leave_ocb,
10522 .policy = nl80211_policy,
10523 .flags = GENL_ADMIN_PERM,
10524 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10525 NL80211_FLAG_NEED_RTNL,
10529 .cmd = NL80211_CMD_GET_WOWLAN,
10530 .doit = nl80211_get_wowlan,
10531 .policy = nl80211_policy,
10532 /* can be retrieved by unprivileged users */
10533 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10534 NL80211_FLAG_NEED_RTNL,
10537 .cmd = NL80211_CMD_SET_WOWLAN,
10538 .doit = nl80211_set_wowlan,
10539 .policy = nl80211_policy,
10540 .flags = GENL_ADMIN_PERM,
10541 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10542 NL80211_FLAG_NEED_RTNL,
10546 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10547 .doit = nl80211_set_rekey_data,
10548 .policy = nl80211_policy,
10549 .flags = GENL_ADMIN_PERM,
10550 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10551 NL80211_FLAG_NEED_RTNL |
10552 NL80211_FLAG_CLEAR_SKB,
10555 .cmd = NL80211_CMD_TDLS_MGMT,
10556 .doit = nl80211_tdls_mgmt,
10557 .policy = nl80211_policy,
10558 .flags = GENL_ADMIN_PERM,
10559 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10560 NL80211_FLAG_NEED_RTNL,
10563 .cmd = NL80211_CMD_TDLS_OPER,
10564 .doit = nl80211_tdls_oper,
10565 .policy = nl80211_policy,
10566 .flags = GENL_ADMIN_PERM,
10567 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10568 NL80211_FLAG_NEED_RTNL,
10571 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10572 .doit = nl80211_register_unexpected_frame,
10573 .policy = nl80211_policy,
10574 .flags = GENL_ADMIN_PERM,
10575 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10576 NL80211_FLAG_NEED_RTNL,
10579 .cmd = NL80211_CMD_PROBE_CLIENT,
10580 .doit = nl80211_probe_client,
10581 .policy = nl80211_policy,
10582 .flags = GENL_ADMIN_PERM,
10583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10584 NL80211_FLAG_NEED_RTNL,
10587 .cmd = NL80211_CMD_REGISTER_BEACONS,
10588 .doit = nl80211_register_beacons,
10589 .policy = nl80211_policy,
10590 .flags = GENL_ADMIN_PERM,
10591 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10592 NL80211_FLAG_NEED_RTNL,
10595 .cmd = NL80211_CMD_SET_NOACK_MAP,
10596 .doit = nl80211_set_noack_map,
10597 .policy = nl80211_policy,
10598 .flags = GENL_ADMIN_PERM,
10599 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10600 NL80211_FLAG_NEED_RTNL,
10603 .cmd = NL80211_CMD_START_P2P_DEVICE,
10604 .doit = nl80211_start_p2p_device,
10605 .policy = nl80211_policy,
10606 .flags = GENL_ADMIN_PERM,
10607 .internal_flags = NL80211_FLAG_NEED_WDEV |
10608 NL80211_FLAG_NEED_RTNL,
10611 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10612 .doit = nl80211_stop_p2p_device,
10613 .policy = nl80211_policy,
10614 .flags = GENL_ADMIN_PERM,
10615 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10616 NL80211_FLAG_NEED_RTNL,
10619 .cmd = NL80211_CMD_SET_MCAST_RATE,
10620 .doit = nl80211_set_mcast_rate,
10621 .policy = nl80211_policy,
10622 .flags = GENL_ADMIN_PERM,
10623 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10624 NL80211_FLAG_NEED_RTNL,
10627 .cmd = NL80211_CMD_SET_MAC_ACL,
10628 .doit = nl80211_set_mac_acl,
10629 .policy = nl80211_policy,
10630 .flags = GENL_ADMIN_PERM,
10631 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10632 NL80211_FLAG_NEED_RTNL,
10635 .cmd = NL80211_CMD_RADAR_DETECT,
10636 .doit = nl80211_start_radar_detection,
10637 .policy = nl80211_policy,
10638 .flags = GENL_ADMIN_PERM,
10639 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10640 NL80211_FLAG_NEED_RTNL,
10643 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10644 .doit = nl80211_get_protocol_features,
10645 .policy = nl80211_policy,
10648 .cmd = NL80211_CMD_UPDATE_FT_IES,
10649 .doit = nl80211_update_ft_ies,
10650 .policy = nl80211_policy,
10651 .flags = GENL_ADMIN_PERM,
10652 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10653 NL80211_FLAG_NEED_RTNL,
10656 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10657 .doit = nl80211_crit_protocol_start,
10658 .policy = nl80211_policy,
10659 .flags = GENL_ADMIN_PERM,
10660 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10661 NL80211_FLAG_NEED_RTNL,
10664 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10665 .doit = nl80211_crit_protocol_stop,
10666 .policy = nl80211_policy,
10667 .flags = GENL_ADMIN_PERM,
10668 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10669 NL80211_FLAG_NEED_RTNL,
10672 .cmd = NL80211_CMD_GET_COALESCE,
10673 .doit = nl80211_get_coalesce,
10674 .policy = nl80211_policy,
10675 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10676 NL80211_FLAG_NEED_RTNL,
10679 .cmd = NL80211_CMD_SET_COALESCE,
10680 .doit = nl80211_set_coalesce,
10681 .policy = nl80211_policy,
10682 .flags = GENL_ADMIN_PERM,
10683 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10684 NL80211_FLAG_NEED_RTNL,
10687 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10688 .doit = nl80211_channel_switch,
10689 .policy = nl80211_policy,
10690 .flags = GENL_ADMIN_PERM,
10691 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10692 NL80211_FLAG_NEED_RTNL,
10695 .cmd = NL80211_CMD_VENDOR,
10696 .doit = nl80211_vendor_cmd,
10697 .policy = nl80211_policy,
10698 .flags = GENL_ADMIN_PERM,
10699 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10700 NL80211_FLAG_NEED_RTNL,
10703 .cmd = NL80211_CMD_SET_QOS_MAP,
10704 .doit = nl80211_set_qos_map,
10705 .policy = nl80211_policy,
10706 .flags = GENL_ADMIN_PERM,
10707 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10708 NL80211_FLAG_NEED_RTNL,
10711 .cmd = NL80211_CMD_ADD_TX_TS,
10712 .doit = nl80211_add_tx_ts,
10713 .policy = nl80211_policy,
10714 .flags = GENL_ADMIN_PERM,
10715 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10716 NL80211_FLAG_NEED_RTNL,
10719 .cmd = NL80211_CMD_DEL_TX_TS,
10720 .doit = nl80211_del_tx_ts,
10721 .policy = nl80211_policy,
10722 .flags = GENL_ADMIN_PERM,
10723 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10724 NL80211_FLAG_NEED_RTNL,
10727 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
10728 .doit = nl80211_tdls_channel_switch,
10729 .policy = nl80211_policy,
10730 .flags = GENL_ADMIN_PERM,
10731 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10732 NL80211_FLAG_NEED_RTNL,
10735 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
10736 .doit = nl80211_tdls_cancel_channel_switch,
10737 .policy = nl80211_policy,
10738 .flags = GENL_ADMIN_PERM,
10739 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10740 NL80211_FLAG_NEED_RTNL,
10744 /* notification functions */
10746 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10747 enum nl80211_commands cmd)
10749 struct sk_buff *msg;
10750 struct nl80211_dump_wiphy_state state = {};
10752 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10753 cmd != NL80211_CMD_DEL_WIPHY);
10755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10759 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
10764 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10765 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10768 static int nl80211_add_scan_req(struct sk_buff *msg,
10769 struct cfg80211_registered_device *rdev)
10771 struct cfg80211_scan_request *req = rdev->scan_req;
10772 struct nlattr *nest;
10778 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10780 goto nla_put_failure;
10781 for (i = 0; i < req->n_ssids; i++) {
10782 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10783 goto nla_put_failure;
10785 nla_nest_end(msg, nest);
10787 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10789 goto nla_put_failure;
10790 for (i = 0; i < req->n_channels; i++) {
10791 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10792 goto nla_put_failure;
10794 nla_nest_end(msg, nest);
10797 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10798 goto nla_put_failure;
10801 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10802 goto nla_put_failure;
10809 static int nl80211_send_scan_msg(struct sk_buff *msg,
10810 struct cfg80211_registered_device *rdev,
10811 struct wireless_dev *wdev,
10812 u32 portid, u32 seq, int flags,
10817 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10821 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10822 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10823 wdev->netdev->ifindex)) ||
10824 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10825 goto nla_put_failure;
10827 /* ignore errors and send incomplete event anyway */
10828 nl80211_add_scan_req(msg, rdev);
10830 return genlmsg_end(msg, hdr);
10833 genlmsg_cancel(msg, hdr);
10838 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10839 struct cfg80211_registered_device *rdev,
10840 struct net_device *netdev,
10841 u32 portid, u32 seq, int flags, u32 cmd)
10845 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10849 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10850 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10851 goto nla_put_failure;
10853 return genlmsg_end(msg, hdr);
10856 genlmsg_cancel(msg, hdr);
10860 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10861 struct wireless_dev *wdev)
10863 struct sk_buff *msg;
10865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10869 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10870 NL80211_CMD_TRIGGER_SCAN) < 0) {
10875 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10876 NL80211_MCGRP_SCAN, GFP_KERNEL);
10879 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10880 struct wireless_dev *wdev, bool aborted)
10882 struct sk_buff *msg;
10884 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10888 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10889 aborted ? NL80211_CMD_SCAN_ABORTED :
10890 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10898 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10899 struct sk_buff *msg)
10904 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10905 NL80211_MCGRP_SCAN, GFP_KERNEL);
10908 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10909 struct net_device *netdev)
10911 struct sk_buff *msg;
10913 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10917 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10918 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10923 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10924 NL80211_MCGRP_SCAN, GFP_KERNEL);
10927 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10928 struct net_device *netdev, u32 cmd)
10930 struct sk_buff *msg;
10932 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10936 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10941 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10942 NL80211_MCGRP_SCAN, GFP_KERNEL);
10946 * This can happen on global regulatory changes or device specific settings
10947 * based on custom world regulatory domains.
10949 void nl80211_send_reg_change_event(struct regulatory_request *request)
10951 struct sk_buff *msg;
10954 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10958 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10964 /* Userspace can always count this one always being set */
10965 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10966 goto nla_put_failure;
10968 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10969 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10970 NL80211_REGDOM_TYPE_WORLD))
10971 goto nla_put_failure;
10972 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10973 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10974 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10975 goto nla_put_failure;
10976 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10977 request->intersect) {
10978 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10979 NL80211_REGDOM_TYPE_INTERSECTION))
10980 goto nla_put_failure;
10982 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10983 NL80211_REGDOM_TYPE_COUNTRY) ||
10984 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10986 goto nla_put_failure;
10989 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10990 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10991 goto nla_put_failure;
10993 genlmsg_end(msg, hdr);
10996 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10997 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11003 genlmsg_cancel(msg, hdr);
11007 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11008 struct net_device *netdev,
11009 const u8 *buf, size_t len,
11010 enum nl80211_commands cmd, gfp_t gfp,
11013 struct sk_buff *msg;
11016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11020 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11027 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11028 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11029 goto nla_put_failure;
11031 if (uapsd_queues >= 0) {
11032 struct nlattr *nla_wmm =
11033 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11035 goto nla_put_failure;
11037 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11039 goto nla_put_failure;
11041 nla_nest_end(msg, nla_wmm);
11044 genlmsg_end(msg, hdr);
11046 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11047 NL80211_MCGRP_MLME, gfp);
11051 genlmsg_cancel(msg, hdr);
11055 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11056 struct net_device *netdev, const u8 *buf,
11057 size_t len, gfp_t gfp)
11059 nl80211_send_mlme_event(rdev, netdev, buf, len,
11060 NL80211_CMD_AUTHENTICATE, gfp, -1);
11063 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11064 struct net_device *netdev, const u8 *buf,
11065 size_t len, gfp_t gfp, int uapsd_queues)
11067 nl80211_send_mlme_event(rdev, netdev, buf, len,
11068 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11071 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11072 struct net_device *netdev, const u8 *buf,
11073 size_t len, gfp_t gfp)
11075 nl80211_send_mlme_event(rdev, netdev, buf, len,
11076 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11079 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11080 struct net_device *netdev, const u8 *buf,
11081 size_t len, gfp_t gfp)
11083 nl80211_send_mlme_event(rdev, netdev, buf, len,
11084 NL80211_CMD_DISASSOCIATE, gfp, -1);
11087 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11090 struct wireless_dev *wdev = dev->ieee80211_ptr;
11091 struct wiphy *wiphy = wdev->wiphy;
11092 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11093 const struct ieee80211_mgmt *mgmt = (void *)buf;
11096 if (WARN_ON(len < 2))
11099 if (ieee80211_is_deauth(mgmt->frame_control))
11100 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11102 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11104 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11105 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11107 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11109 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11110 struct net_device *netdev, int cmd,
11111 const u8 *addr, gfp_t gfp)
11113 struct sk_buff *msg;
11116 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11120 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11126 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11127 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11128 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11129 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11130 goto nla_put_failure;
11132 genlmsg_end(msg, hdr);
11134 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11135 NL80211_MCGRP_MLME, gfp);
11139 genlmsg_cancel(msg, hdr);
11143 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11144 struct net_device *netdev, const u8 *addr,
11147 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11151 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11152 struct net_device *netdev, const u8 *addr,
11155 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11159 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11160 struct net_device *netdev, const u8 *bssid,
11161 const u8 *req_ie, size_t req_ie_len,
11162 const u8 *resp_ie, size_t resp_ie_len,
11163 u16 status, gfp_t gfp)
11165 struct sk_buff *msg;
11168 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11172 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11178 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11179 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11180 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11181 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11183 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11185 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11186 goto nla_put_failure;
11188 genlmsg_end(msg, hdr);
11190 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11191 NL80211_MCGRP_MLME, gfp);
11195 genlmsg_cancel(msg, hdr);
11200 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11201 struct net_device *netdev, const u8 *bssid,
11202 const u8 *req_ie, size_t req_ie_len,
11203 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11205 struct sk_buff *msg;
11208 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11212 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11218 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11219 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11220 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11222 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11224 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11225 goto nla_put_failure;
11227 genlmsg_end(msg, hdr);
11229 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11230 NL80211_MCGRP_MLME, gfp);
11234 genlmsg_cancel(msg, hdr);
11239 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11240 struct net_device *netdev, u16 reason,
11241 const u8 *ie, size_t ie_len, bool from_ap)
11243 struct sk_buff *msg;
11246 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11250 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11256 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11257 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11258 (from_ap && reason &&
11259 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11261 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11262 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11263 goto nla_put_failure;
11265 genlmsg_end(msg, hdr);
11267 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11268 NL80211_MCGRP_MLME, GFP_KERNEL);
11272 genlmsg_cancel(msg, hdr);
11277 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11278 struct net_device *netdev, const u8 *bssid,
11281 struct sk_buff *msg;
11284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11295 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11296 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11297 goto nla_put_failure;
11299 genlmsg_end(msg, hdr);
11301 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11302 NL80211_MCGRP_MLME, gfp);
11306 genlmsg_cancel(msg, hdr);
11310 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11311 const u8* ie, u8 ie_len, gfp_t gfp)
11313 struct wireless_dev *wdev = dev->ieee80211_ptr;
11314 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11315 struct sk_buff *msg;
11318 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11321 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11323 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11327 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11333 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11334 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11335 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11337 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11338 goto nla_put_failure;
11340 genlmsg_end(msg, hdr);
11342 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11343 NL80211_MCGRP_MLME, gfp);
11347 genlmsg_cancel(msg, hdr);
11350 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
11352 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11353 struct net_device *netdev, const u8 *addr,
11354 enum nl80211_key_type key_type, int key_id,
11355 const u8 *tsc, gfp_t gfp)
11357 struct sk_buff *msg;
11360 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11364 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11370 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11371 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11372 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11373 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11375 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11376 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11377 goto nla_put_failure;
11379 genlmsg_end(msg, hdr);
11381 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11382 NL80211_MCGRP_MLME, gfp);
11386 genlmsg_cancel(msg, hdr);
11390 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11391 struct ieee80211_channel *channel_before,
11392 struct ieee80211_channel *channel_after)
11394 struct sk_buff *msg;
11396 struct nlattr *nl_freq;
11398 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
11402 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11409 * Since we are applying the beacon hint to a wiphy we know its
11410 * wiphy_idx is valid
11412 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11413 goto nla_put_failure;
11416 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11418 goto nla_put_failure;
11419 if (nl80211_msg_put_channel(msg, channel_before, false))
11420 goto nla_put_failure;
11421 nla_nest_end(msg, nl_freq);
11424 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11426 goto nla_put_failure;
11427 if (nl80211_msg_put_channel(msg, channel_after, false))
11428 goto nla_put_failure;
11429 nla_nest_end(msg, nl_freq);
11431 genlmsg_end(msg, hdr);
11434 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11435 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11441 genlmsg_cancel(msg, hdr);
11445 static void nl80211_send_remain_on_chan_event(
11446 int cmd, struct cfg80211_registered_device *rdev,
11447 struct wireless_dev *wdev, u64 cookie,
11448 struct ieee80211_channel *chan,
11449 unsigned int duration, gfp_t gfp)
11451 struct sk_buff *msg;
11454 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11458 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11464 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11465 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11466 wdev->netdev->ifindex)) ||
11467 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11468 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
11469 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11470 NL80211_CHAN_NO_HT) ||
11471 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11472 goto nla_put_failure;
11474 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11475 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11476 goto nla_put_failure;
11478 genlmsg_end(msg, hdr);
11480 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11481 NL80211_MCGRP_MLME, gfp);
11485 genlmsg_cancel(msg, hdr);
11489 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11490 struct ieee80211_channel *chan,
11491 unsigned int duration, gfp_t gfp)
11493 struct wiphy *wiphy = wdev->wiphy;
11494 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11496 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
11497 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
11498 rdev, wdev, cookie, chan,
11501 EXPORT_SYMBOL(cfg80211_ready_on_channel);
11503 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11504 struct ieee80211_channel *chan,
11507 struct wiphy *wiphy = wdev->wiphy;
11508 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11510 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
11511 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11512 rdev, wdev, cookie, chan, 0, gfp);
11514 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
11516 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11517 struct station_info *sinfo, gfp_t gfp)
11519 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11520 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11521 struct sk_buff *msg;
11523 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11525 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11529 if (nl80211_send_station(msg, 0, 0, 0,
11530 rdev, dev, mac_addr, sinfo) < 0) {
11535 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11536 NL80211_MCGRP_MLME, gfp);
11538 EXPORT_SYMBOL(cfg80211_new_sta);
11540 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
11542 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11543 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11544 struct sk_buff *msg;
11547 trace_cfg80211_del_sta(dev, mac_addr);
11549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11553 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11559 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11560 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11561 goto nla_put_failure;
11563 genlmsg_end(msg, hdr);
11565 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11566 NL80211_MCGRP_MLME, gfp);
11570 genlmsg_cancel(msg, hdr);
11573 EXPORT_SYMBOL(cfg80211_del_sta);
11575 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11576 enum nl80211_connect_failed_reason reason,
11579 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11580 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11581 struct sk_buff *msg;
11584 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11588 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11594 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11595 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11596 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11597 goto nla_put_failure;
11599 genlmsg_end(msg, hdr);
11601 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11602 NL80211_MCGRP_MLME, gfp);
11606 genlmsg_cancel(msg, hdr);
11609 EXPORT_SYMBOL(cfg80211_conn_failed);
11611 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11612 const u8 *addr, gfp_t gfp)
11614 struct wireless_dev *wdev = dev->ieee80211_ptr;
11615 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11616 struct sk_buff *msg;
11618 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
11623 msg = nlmsg_new(100, gfp);
11627 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11633 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11634 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11635 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11636 goto nla_put_failure;
11638 genlmsg_end(msg, hdr);
11639 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11643 genlmsg_cancel(msg, hdr);
11648 bool cfg80211_rx_spurious_frame(struct net_device *dev,
11649 const u8 *addr, gfp_t gfp)
11651 struct wireless_dev *wdev = dev->ieee80211_ptr;
11654 trace_cfg80211_rx_spurious_frame(dev, addr);
11656 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11657 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11658 trace_cfg80211_return_bool(false);
11661 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11663 trace_cfg80211_return_bool(ret);
11666 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11668 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11669 const u8 *addr, gfp_t gfp)
11671 struct wireless_dev *wdev = dev->ieee80211_ptr;
11674 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11676 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11677 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11678 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11679 trace_cfg80211_return_bool(false);
11682 ret = __nl80211_unexpected_frame(dev,
11683 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11685 trace_cfg80211_return_bool(ret);
11688 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
11690 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
11691 struct wireless_dev *wdev, u32 nlportid,
11692 int freq, int sig_dbm,
11693 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
11695 struct net_device *netdev = wdev->netdev;
11696 struct sk_buff *msg;
11699 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11703 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11709 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11710 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11711 netdev->ifindex)) ||
11712 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11713 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11715 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11716 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11718 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
11719 goto nla_put_failure;
11721 genlmsg_end(msg, hdr);
11723 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11726 genlmsg_cancel(msg, hdr);
11731 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11732 const u8 *buf, size_t len, bool ack, gfp_t gfp)
11734 struct wiphy *wiphy = wdev->wiphy;
11735 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11736 struct net_device *netdev = wdev->netdev;
11737 struct sk_buff *msg;
11740 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11742 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11746 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
11752 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11753 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11754 netdev->ifindex)) ||
11755 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11756 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11757 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11758 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11759 goto nla_put_failure;
11761 genlmsg_end(msg, hdr);
11763 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11764 NL80211_MCGRP_MLME, gfp);
11768 genlmsg_cancel(msg, hdr);
11771 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11773 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11774 enum nl80211_cqm_rssi_threshold_event rssi_event,
11777 struct wireless_dev *wdev = dev->ieee80211_ptr;
11778 struct wiphy *wiphy = wdev->wiphy;
11779 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11780 struct sk_buff *msg;
11781 struct nlattr *pinfoattr;
11784 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11786 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11790 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11796 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11797 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11798 goto nla_put_failure;
11800 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11802 goto nla_put_failure;
11804 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11806 goto nla_put_failure;
11808 nla_nest_end(msg, pinfoattr);
11810 genlmsg_end(msg, hdr);
11812 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11813 NL80211_MCGRP_MLME, gfp);
11817 genlmsg_cancel(msg, hdr);
11820 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11822 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11823 struct net_device *netdev, const u8 *bssid,
11824 const u8 *replay_ctr, gfp_t gfp)
11826 struct sk_buff *msg;
11827 struct nlattr *rekey_attr;
11830 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11834 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11840 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11841 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11842 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11843 goto nla_put_failure;
11845 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11847 goto nla_put_failure;
11849 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11850 NL80211_REPLAY_CTR_LEN, replay_ctr))
11851 goto nla_put_failure;
11853 nla_nest_end(msg, rekey_attr);
11855 genlmsg_end(msg, hdr);
11857 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11858 NL80211_MCGRP_MLME, gfp);
11862 genlmsg_cancel(msg, hdr);
11866 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11867 const u8 *replay_ctr, gfp_t gfp)
11869 struct wireless_dev *wdev = dev->ieee80211_ptr;
11870 struct wiphy *wiphy = wdev->wiphy;
11871 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11873 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11874 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11876 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11879 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11880 struct net_device *netdev, int index,
11881 const u8 *bssid, bool preauth, gfp_t gfp)
11883 struct sk_buff *msg;
11884 struct nlattr *attr;
11887 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11891 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11897 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11898 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11899 goto nla_put_failure;
11901 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11903 goto nla_put_failure;
11905 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11906 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11908 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11909 goto nla_put_failure;
11911 nla_nest_end(msg, attr);
11913 genlmsg_end(msg, hdr);
11915 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11916 NL80211_MCGRP_MLME, gfp);
11920 genlmsg_cancel(msg, hdr);
11924 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11925 const u8 *bssid, bool preauth, gfp_t gfp)
11927 struct wireless_dev *wdev = dev->ieee80211_ptr;
11928 struct wiphy *wiphy = wdev->wiphy;
11929 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11931 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11932 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11934 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11936 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11937 struct net_device *netdev,
11938 struct cfg80211_chan_def *chandef,
11940 enum nl80211_commands notif,
11943 struct sk_buff *msg;
11946 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11950 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
11956 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11957 goto nla_put_failure;
11959 if (nl80211_send_chandef(msg, chandef))
11960 goto nla_put_failure;
11962 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
11963 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
11964 goto nla_put_failure;
11966 genlmsg_end(msg, hdr);
11968 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11969 NL80211_MCGRP_MLME, gfp);
11973 genlmsg_cancel(msg, hdr);
11977 void cfg80211_ch_switch_notify(struct net_device *dev,
11978 struct cfg80211_chan_def *chandef)
11980 struct wireless_dev *wdev = dev->ieee80211_ptr;
11981 struct wiphy *wiphy = wdev->wiphy;
11982 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11984 ASSERT_WDEV_LOCK(wdev);
11986 trace_cfg80211_ch_switch_notify(dev, chandef);
11988 wdev->chandef = *chandef;
11989 wdev->preset_chandef = *chandef;
11990 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
11991 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
11993 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11995 void cfg80211_ch_switch_started_notify(struct net_device *dev,
11996 struct cfg80211_chan_def *chandef,
11999 struct wireless_dev *wdev = dev->ieee80211_ptr;
12000 struct wiphy *wiphy = wdev->wiphy;
12001 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12003 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12005 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12006 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12008 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12010 void cfg80211_cqm_txe_notify(struct net_device *dev,
12011 const u8 *peer, u32 num_packets,
12012 u32 rate, u32 intvl, gfp_t gfp)
12014 struct wireless_dev *wdev = dev->ieee80211_ptr;
12015 struct wiphy *wiphy = wdev->wiphy;
12016 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12017 struct sk_buff *msg;
12018 struct nlattr *pinfoattr;
12021 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12025 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12031 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12032 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12033 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
12034 goto nla_put_failure;
12036 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
12038 goto nla_put_failure;
12040 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12041 goto nla_put_failure;
12043 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12044 goto nla_put_failure;
12046 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12047 goto nla_put_failure;
12049 nla_nest_end(msg, pinfoattr);
12051 genlmsg_end(msg, hdr);
12053 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12054 NL80211_MCGRP_MLME, gfp);
12058 genlmsg_cancel(msg, hdr);
12061 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12064 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12065 const struct cfg80211_chan_def *chandef,
12066 enum nl80211_radar_event event,
12067 struct net_device *netdev, gfp_t gfp)
12069 struct sk_buff *msg;
12072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12076 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12082 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12083 goto nla_put_failure;
12085 /* NOP and radar events don't need a netdev parameter */
12087 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12089 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12090 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12091 goto nla_put_failure;
12094 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12095 goto nla_put_failure;
12097 if (nl80211_send_chandef(msg, chandef))
12098 goto nla_put_failure;
12100 genlmsg_end(msg, hdr);
12102 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12103 NL80211_MCGRP_MLME, gfp);
12107 genlmsg_cancel(msg, hdr);
12111 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12112 const u8 *peer, u32 num_packets, gfp_t gfp)
12114 struct wireless_dev *wdev = dev->ieee80211_ptr;
12115 struct wiphy *wiphy = wdev->wiphy;
12116 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12117 struct sk_buff *msg;
12118 struct nlattr *pinfoattr;
12121 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12123 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12127 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12133 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12134 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12135 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
12136 goto nla_put_failure;
12138 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
12140 goto nla_put_failure;
12142 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12143 goto nla_put_failure;
12145 nla_nest_end(msg, pinfoattr);
12147 genlmsg_end(msg, hdr);
12149 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12150 NL80211_MCGRP_MLME, gfp);
12154 genlmsg_cancel(msg, hdr);
12157 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12159 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12160 u64 cookie, bool acked, gfp_t gfp)
12162 struct wireless_dev *wdev = dev->ieee80211_ptr;
12163 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12164 struct sk_buff *msg;
12167 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12169 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12174 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12180 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12181 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12182 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12183 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12184 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12185 goto nla_put_failure;
12187 genlmsg_end(msg, hdr);
12189 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12190 NL80211_MCGRP_MLME, gfp);
12194 genlmsg_cancel(msg, hdr);
12197 EXPORT_SYMBOL(cfg80211_probe_status);
12199 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12200 const u8 *frame, size_t len,
12201 int freq, int sig_dbm)
12203 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12204 struct sk_buff *msg;
12206 struct cfg80211_beacon_registration *reg;
12208 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12210 spin_lock_bh(&rdev->beacon_registrations_lock);
12211 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12212 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12214 spin_unlock_bh(&rdev->beacon_registrations_lock);
12218 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12220 goto nla_put_failure;
12222 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12224 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12226 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12227 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12228 goto nla_put_failure;
12230 genlmsg_end(msg, hdr);
12232 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12234 spin_unlock_bh(&rdev->beacon_registrations_lock);
12238 spin_unlock_bh(&rdev->beacon_registrations_lock);
12240 genlmsg_cancel(msg, hdr);
12243 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12246 static int cfg80211_net_detect_results(struct sk_buff *msg,
12247 struct cfg80211_wowlan_wakeup *wakeup)
12249 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12250 struct nlattr *nl_results, *nl_match, *nl_freqs;
12253 nl_results = nla_nest_start(
12254 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12258 for (i = 0; i < nd->n_matches; i++) {
12259 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12261 nl_match = nla_nest_start(msg, i);
12265 /* The SSID attribute is optional in nl80211, but for
12266 * simplicity reasons it's always present in the
12267 * cfg80211 structure. If a driver can't pass the
12268 * SSID, that needs to be changed. A zero length SSID
12269 * is still a valid SSID (wildcard), so it cannot be
12270 * used for this purpose.
12272 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12273 match->ssid.ssid)) {
12274 nla_nest_cancel(msg, nl_match);
12278 if (match->n_channels) {
12279 nl_freqs = nla_nest_start(
12280 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12282 nla_nest_cancel(msg, nl_match);
12286 for (j = 0; j < match->n_channels; j++) {
12287 if (nla_put_u32(msg,
12288 NL80211_ATTR_WIPHY_FREQ,
12289 match->channels[j])) {
12290 nla_nest_cancel(msg, nl_freqs);
12291 nla_nest_cancel(msg, nl_match);
12296 nla_nest_end(msg, nl_freqs);
12299 nla_nest_end(msg, nl_match);
12303 nla_nest_end(msg, nl_results);
12307 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12308 struct cfg80211_wowlan_wakeup *wakeup,
12311 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12312 struct sk_buff *msg;
12316 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12319 size += wakeup->packet_present_len;
12321 msg = nlmsg_new(size, gfp);
12325 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12329 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12330 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12333 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12334 wdev->netdev->ifindex))
12338 struct nlattr *reasons;
12340 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
12344 if (wakeup->disconnect &&
12345 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12347 if (wakeup->magic_pkt &&
12348 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12350 if (wakeup->gtk_rekey_failure &&
12351 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12353 if (wakeup->eap_identity_req &&
12354 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12356 if (wakeup->four_way_handshake &&
12357 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12359 if (wakeup->rfkill_release &&
12360 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12363 if (wakeup->pattern_idx >= 0 &&
12364 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12365 wakeup->pattern_idx))
12368 if (wakeup->tcp_match &&
12369 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12372 if (wakeup->tcp_connlost &&
12373 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12376 if (wakeup->tcp_nomoretokens &&
12378 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12381 if (wakeup->packet) {
12382 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12383 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12385 if (!wakeup->packet_80211) {
12387 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12389 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12392 if (wakeup->packet_len &&
12393 nla_put_u32(msg, len_attr, wakeup->packet_len))
12396 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12401 if (wakeup->net_detect &&
12402 cfg80211_net_detect_results(msg, wakeup))
12405 nla_nest_end(msg, reasons);
12408 genlmsg_end(msg, hdr);
12410 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12411 NL80211_MCGRP_MLME, gfp);
12417 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12420 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12421 enum nl80211_tdls_operation oper,
12422 u16 reason_code, gfp_t gfp)
12424 struct wireless_dev *wdev = dev->ieee80211_ptr;
12425 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12426 struct sk_buff *msg;
12429 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12432 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12436 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12442 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12443 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12444 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12445 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12446 (reason_code > 0 &&
12447 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12448 goto nla_put_failure;
12450 genlmsg_end(msg, hdr);
12452 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12453 NL80211_MCGRP_MLME, gfp);
12457 genlmsg_cancel(msg, hdr);
12460 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12462 static int nl80211_netlink_notify(struct notifier_block * nb,
12463 unsigned long state,
12466 struct netlink_notify *notify = _notify;
12467 struct cfg80211_registered_device *rdev;
12468 struct wireless_dev *wdev;
12469 struct cfg80211_beacon_registration *reg, *tmp;
12471 if (state != NETLINK_URELEASE)
12472 return NOTIFY_DONE;
12476 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
12477 bool schedule_destroy_work = false;
12479 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
12480 cfg80211_mlme_unregister_socket(wdev, notify->portid);
12482 if (wdev->owner_nlportid == notify->portid)
12483 schedule_destroy_work = true;
12486 spin_lock_bh(&rdev->beacon_registrations_lock);
12487 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12489 if (reg->nlportid == notify->portid) {
12490 list_del(®->list);
12495 spin_unlock_bh(&rdev->beacon_registrations_lock);
12497 if (schedule_destroy_work) {
12498 struct cfg80211_iface_destroy *destroy;
12500 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12502 destroy->nlportid = notify->portid;
12503 spin_lock(&rdev->destroy_list_lock);
12504 list_add(&destroy->list, &rdev->destroy_list);
12505 spin_unlock(&rdev->destroy_list_lock);
12506 schedule_work(&rdev->destroy_work);
12516 static struct notifier_block nl80211_netlink_notifier = {
12517 .notifier_call = nl80211_netlink_notify,
12520 void cfg80211_ft_event(struct net_device *netdev,
12521 struct cfg80211_ft_event_params *ft_event)
12523 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
12524 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12525 struct sk_buff *msg;
12528 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12530 if (!ft_event->target_ap)
12533 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12537 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
12541 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12542 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12543 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12546 if (ft_event->ies &&
12547 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12549 if (ft_event->ric_ies &&
12550 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12551 ft_event->ric_ies))
12554 genlmsg_end(msg, hdr);
12556 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12557 NL80211_MCGRP_MLME, GFP_KERNEL);
12562 EXPORT_SYMBOL(cfg80211_ft_event);
12564 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12566 struct cfg80211_registered_device *rdev;
12567 struct sk_buff *msg;
12571 rdev = wiphy_to_rdev(wdev->wiphy);
12572 if (!rdev->crit_proto_nlportid)
12575 nlportid = rdev->crit_proto_nlportid;
12576 rdev->crit_proto_nlportid = 0;
12578 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12582 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12584 goto nla_put_failure;
12586 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12587 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12588 goto nla_put_failure;
12590 genlmsg_end(msg, hdr);
12592 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12597 genlmsg_cancel(msg, hdr);
12601 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12603 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12605 struct wiphy *wiphy = wdev->wiphy;
12606 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12607 struct sk_buff *msg;
12610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12614 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12618 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12619 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12620 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12623 genlmsg_end(msg, hdr);
12625 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12626 NL80211_MCGRP_MLME, GFP_KERNEL);
12632 /* initialisation/exit functions */
12634 int nl80211_init(void)
12638 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12643 err = netlink_register_notifier(&nl80211_netlink_notifier);
12649 genl_unregister_family(&nl80211_fam);
12653 void nl80211_exit(void)
12655 netlink_unregister_notifier(&nl80211_netlink_notifier);
12656 genl_unregister_family(&nl80211_fam);