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[NL80211_ATTR_MAX+1] = {
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_IFACE_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 },
400 /* policy for the key attributes */
401 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
402 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
403 [NL80211_KEY_IDX] = { .type = NLA_U8 },
404 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
405 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
406 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
407 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
408 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
409 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
412 /* policy for the key default flags */
413 static const struct nla_policy
414 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
415 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
416 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
419 /* policy for WoWLAN attributes */
420 static const struct nla_policy
421 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
422 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
423 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
424 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
425 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
426 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
427 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
433 static const struct nla_policy
434 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
435 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
436 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
437 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
438 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
439 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
440 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
441 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
442 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
444 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
445 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
447 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
448 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
449 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
452 /* policy for coalesce rule attributes */
453 static const struct nla_policy
454 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
455 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
456 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
457 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
460 /* policy for GTK rekey offload attributes */
461 static const struct nla_policy
462 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
463 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
464 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
465 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
468 static const struct nla_policy
469 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
470 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
471 .len = IEEE80211_MAX_SSID_LEN },
472 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
475 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
476 struct netlink_callback *cb,
477 struct cfg80211_registered_device **rdev,
478 struct wireless_dev **wdev)
485 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
486 nl80211_fam.attrbuf, nl80211_fam.maxattr,
491 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
492 nl80211_fam.attrbuf);
494 err = PTR_ERR(*wdev);
497 *rdev = wiphy_to_rdev((*wdev)->wiphy);
498 /* 0 is the first index - add 1 to parse only once */
499 cb->args[0] = (*rdev)->wiphy_idx + 1;
500 cb->args[1] = (*wdev)->identifier;
502 /* subtract the 1 again here */
503 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
504 struct wireless_dev *tmp;
510 *rdev = wiphy_to_rdev(wiphy);
513 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
514 if (tmp->identifier == cb->args[1]) {
532 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
538 static bool is_valid_ie_attr(const struct nlattr *attr)
546 pos = nla_data(attr);
567 /* message building helper */
568 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
571 /* since there is no private header just add the generic one */
572 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
575 static int nl80211_msg_put_channel(struct sk_buff *msg,
576 struct ieee80211_channel *chan,
579 /* Some channels must be completely excluded from the
580 * list to protect old user-space tools from breaking
582 if (!large && chan->flags &
583 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
586 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
588 goto nla_put_failure;
590 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
591 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
592 goto nla_put_failure;
593 if (chan->flags & IEEE80211_CHAN_NO_IR) {
594 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
595 goto nla_put_failure;
596 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
597 goto nla_put_failure;
599 if (chan->flags & IEEE80211_CHAN_RADAR) {
600 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
601 goto nla_put_failure;
605 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
607 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
609 goto nla_put_failure;
610 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
612 goto nla_put_failure;
614 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
616 goto nla_put_failure;
621 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
622 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
623 goto nla_put_failure;
624 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
625 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
626 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_GO_CONCURRENT) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_GO_CONCURRENT))
638 goto nla_put_failure;
639 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
641 goto nla_put_failure;
642 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
644 goto nla_put_failure;
647 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
648 DBM_TO_MBM(chan->max_power)))
649 goto nla_put_failure;
657 /* netlink command implementations */
664 bool def_uni, def_multi;
667 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
669 struct nlattr *tb[NL80211_KEY_MAX + 1];
670 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
675 k->def = !!tb[NL80211_KEY_DEFAULT];
676 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
685 if (tb[NL80211_KEY_IDX])
686 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
688 if (tb[NL80211_KEY_DATA]) {
689 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
690 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
693 if (tb[NL80211_KEY_SEQ]) {
694 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
695 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
698 if (tb[NL80211_KEY_CIPHER])
699 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
701 if (tb[NL80211_KEY_TYPE]) {
702 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
703 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
707 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
708 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
709 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
710 tb[NL80211_KEY_DEFAULT_TYPES],
711 nl80211_key_default_policy);
715 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
716 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
722 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
724 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
725 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
726 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
729 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
730 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
731 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
734 if (info->attrs[NL80211_ATTR_KEY_IDX])
735 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
737 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
738 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
740 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
741 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
750 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
751 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
752 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
756 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
757 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
758 int err = nla_parse_nested(
759 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
760 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
761 nl80211_key_default_policy);
765 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
766 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
772 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
776 memset(k, 0, sizeof(*k));
780 if (info->attrs[NL80211_ATTR_KEY])
781 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
783 err = nl80211_parse_key_old(info, k);
788 if (k->def && k->defmgmt)
792 if (k->def_uni || !k->def_multi)
798 if (k->idx < 4 || k->idx > 5)
801 if (k->idx < 0 || k->idx > 3)
804 if (k->idx < 0 || k->idx > 5)
812 static struct cfg80211_cached_keys *
813 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
814 struct nlattr *keys, bool *no_ht)
816 struct key_parse parse;
818 struct cfg80211_cached_keys *result;
819 int rem, err, def = 0;
821 result = kzalloc(sizeof(*result), GFP_KERNEL);
823 return ERR_PTR(-ENOMEM);
826 result->defmgmt = -1;
828 nla_for_each_nested(key, keys, rem) {
829 memset(&parse, 0, sizeof(parse));
832 err = nl80211_parse_key_new(key, &parse);
838 if (parse.idx < 0 || parse.idx > 4)
844 result->def = parse.idx;
845 if (!parse.def_uni || !parse.def_multi)
847 } else if (parse.defmgmt)
849 err = cfg80211_validate_key_settings(rdev, &parse.p,
850 parse.idx, false, NULL);
853 result->params[parse.idx].cipher = parse.p.cipher;
854 result->params[parse.idx].key_len = parse.p.key_len;
855 result->params[parse.idx].key = result->data[parse.idx];
856 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
858 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
859 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
871 static int nl80211_key_allowed(struct wireless_dev *wdev)
873 ASSERT_WDEV_LOCK(wdev);
875 switch (wdev->iftype) {
876 case NL80211_IFTYPE_AP:
877 case NL80211_IFTYPE_AP_VLAN:
878 case NL80211_IFTYPE_P2P_GO:
879 case NL80211_IFTYPE_MESH_POINT:
881 case NL80211_IFTYPE_ADHOC:
882 case NL80211_IFTYPE_STATION:
883 case NL80211_IFTYPE_P2P_CLIENT:
884 if (!wdev->current_bss)
894 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
897 struct ieee80211_channel *chan;
901 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
902 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
907 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
909 struct nlattr *nl_modes = nla_nest_start(msg, attr);
913 goto nla_put_failure;
917 if ((ifmodes & 1) && nla_put_flag(msg, i))
918 goto nla_put_failure;
923 nla_nest_end(msg, nl_modes);
930 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
934 struct nlattr *nl_combis;
937 nl_combis = nla_nest_start(msg,
938 NL80211_ATTR_INTERFACE_COMBINATIONS);
940 goto nla_put_failure;
942 for (i = 0; i < wiphy->n_iface_combinations; i++) {
943 const struct ieee80211_iface_combination *c;
944 struct nlattr *nl_combi, *nl_limits;
946 c = &wiphy->iface_combinations[i];
948 nl_combi = nla_nest_start(msg, i + 1);
950 goto nla_put_failure;
952 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
954 goto nla_put_failure;
956 for (j = 0; j < c->n_limits; j++) {
957 struct nlattr *nl_limit;
959 nl_limit = nla_nest_start(msg, j + 1);
961 goto nla_put_failure;
962 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
964 goto nla_put_failure;
965 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
967 goto nla_put_failure;
968 nla_nest_end(msg, nl_limit);
971 nla_nest_end(msg, nl_limits);
973 if (c->beacon_int_infra_match &&
974 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
975 goto nla_put_failure;
976 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
977 c->num_different_channels) ||
978 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
980 goto nla_put_failure;
982 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
983 c->radar_detect_widths) ||
984 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
985 c->radar_detect_regions)))
986 goto nla_put_failure;
988 nla_nest_end(msg, nl_combi);
991 nla_nest_end(msg, nl_combis);
999 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1000 struct sk_buff *msg)
1002 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1003 struct nlattr *nl_tcp;
1008 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1012 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1013 tcp->data_payload_max))
1016 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1017 tcp->data_payload_max))
1020 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1023 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1024 sizeof(*tcp->tok), tcp->tok))
1027 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1028 tcp->data_interval_max))
1031 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1032 tcp->wake_payload_max))
1035 nla_nest_end(msg, nl_tcp);
1039 static int nl80211_send_wowlan(struct sk_buff *msg,
1040 struct cfg80211_registered_device *rdev,
1043 struct nlattr *nl_wowlan;
1045 if (!rdev->wiphy.wowlan)
1048 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1052 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1053 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1054 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1055 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1056 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1057 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1058 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1060 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1061 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1062 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1064 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1065 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1066 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1067 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1070 if (rdev->wiphy.wowlan->n_patterns) {
1071 struct nl80211_pattern_support pat = {
1072 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1073 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1074 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1075 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1078 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1083 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1086 nla_nest_end(msg, nl_wowlan);
1092 static int nl80211_send_coalesce(struct sk_buff *msg,
1093 struct cfg80211_registered_device *rdev)
1095 struct nl80211_coalesce_rule_support rule;
1097 if (!rdev->wiphy.coalesce)
1100 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1101 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1102 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1103 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1104 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1105 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1107 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1113 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1114 struct ieee80211_supported_band *sband)
1116 struct nlattr *nl_rates, *nl_rate;
1117 struct ieee80211_rate *rate;
1121 if (sband->ht_cap.ht_supported &&
1122 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1123 sizeof(sband->ht_cap.mcs),
1124 &sband->ht_cap.mcs) ||
1125 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1126 sband->ht_cap.cap) ||
1127 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1128 sband->ht_cap.ampdu_factor) ||
1129 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1130 sband->ht_cap.ampdu_density)))
1134 if (sband->vht_cap.vht_supported &&
1135 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1136 sizeof(sband->vht_cap.vht_mcs),
1137 &sband->vht_cap.vht_mcs) ||
1138 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1139 sband->vht_cap.cap)))
1143 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1147 for (i = 0; i < sband->n_bitrates; i++) {
1148 nl_rate = nla_nest_start(msg, i);
1152 rate = &sband->bitrates[i];
1153 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1156 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1158 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1161 nla_nest_end(msg, nl_rate);
1164 nla_nest_end(msg, nl_rates);
1170 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1171 const struct ieee80211_txrx_stypes *mgmt_stypes)
1174 struct nlattr *nl_ftypes, *nl_ifs;
1175 enum nl80211_iftype ift;
1181 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1185 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1186 nl_ftypes = nla_nest_start(msg, ift);
1190 stypes = mgmt_stypes[ift].tx;
1193 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1194 (i << 4) | IEEE80211_FTYPE_MGMT))
1199 nla_nest_end(msg, nl_ftypes);
1202 nla_nest_end(msg, nl_ifs);
1204 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1208 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1209 nl_ftypes = nla_nest_start(msg, ift);
1213 stypes = mgmt_stypes[ift].rx;
1216 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1217 (i << 4) | IEEE80211_FTYPE_MGMT))
1222 nla_nest_end(msg, nl_ftypes);
1224 nla_nest_end(msg, nl_ifs);
1229 struct nl80211_dump_wiphy_state {
1232 long split_start, band_start, chan_start;
1236 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1237 enum nl80211_commands cmd,
1238 struct sk_buff *msg, u32 portid, u32 seq,
1239 int flags, struct nl80211_dump_wiphy_state *state)
1242 struct nlattr *nl_bands, *nl_band;
1243 struct nlattr *nl_freqs, *nl_freq;
1244 struct nlattr *nl_cmds;
1245 enum ieee80211_band band;
1246 struct ieee80211_channel *chan;
1248 const struct ieee80211_txrx_stypes *mgmt_stypes =
1249 rdev->wiphy.mgmt_stypes;
1252 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1256 if (WARN_ON(!state))
1259 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1260 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1261 wiphy_name(&rdev->wiphy)) ||
1262 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1263 cfg80211_rdev_list_generation))
1264 goto nla_put_failure;
1266 if (cmd != NL80211_CMD_NEW_WIPHY)
1269 switch (state->split_start) {
1271 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1272 rdev->wiphy.retry_short) ||
1273 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1274 rdev->wiphy.retry_long) ||
1275 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1276 rdev->wiphy.frag_threshold) ||
1277 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1278 rdev->wiphy.rts_threshold) ||
1279 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1280 rdev->wiphy.coverage_class) ||
1281 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1282 rdev->wiphy.max_scan_ssids) ||
1283 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1284 rdev->wiphy.max_sched_scan_ssids) ||
1285 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1286 rdev->wiphy.max_scan_ie_len) ||
1287 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1288 rdev->wiphy.max_sched_scan_ie_len) ||
1289 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1290 rdev->wiphy.max_match_sets))
1291 goto nla_put_failure;
1293 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1294 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1295 goto nla_put_failure;
1296 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1297 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1298 goto nla_put_failure;
1299 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1300 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1301 goto nla_put_failure;
1302 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1303 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1304 goto nla_put_failure;
1305 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1306 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1307 goto nla_put_failure;
1308 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1309 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1310 goto nla_put_failure;
1311 state->split_start++;
1315 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1316 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1317 rdev->wiphy.cipher_suites))
1318 goto nla_put_failure;
1320 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1321 rdev->wiphy.max_num_pmkids))
1322 goto nla_put_failure;
1324 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1325 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1326 goto nla_put_failure;
1328 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1329 rdev->wiphy.available_antennas_tx) ||
1330 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1331 rdev->wiphy.available_antennas_rx))
1332 goto nla_put_failure;
1334 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1335 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1336 rdev->wiphy.probe_resp_offload))
1337 goto nla_put_failure;
1339 if ((rdev->wiphy.available_antennas_tx ||
1340 rdev->wiphy.available_antennas_rx) &&
1341 rdev->ops->get_antenna) {
1342 u32 tx_ant = 0, rx_ant = 0;
1344 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1346 if (nla_put_u32(msg,
1347 NL80211_ATTR_WIPHY_ANTENNA_TX,
1350 NL80211_ATTR_WIPHY_ANTENNA_RX,
1352 goto nla_put_failure;
1356 state->split_start++;
1360 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1361 rdev->wiphy.interface_modes))
1362 goto nla_put_failure;
1363 state->split_start++;
1367 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1369 goto nla_put_failure;
1371 for (band = state->band_start;
1372 band < IEEE80211_NUM_BANDS; band++) {
1373 struct ieee80211_supported_band *sband;
1375 sband = rdev->wiphy.bands[band];
1380 nl_band = nla_nest_start(msg, band);
1382 goto nla_put_failure;
1384 switch (state->chan_start) {
1386 if (nl80211_send_band_rateinfo(msg, sband))
1387 goto nla_put_failure;
1388 state->chan_start++;
1392 /* add frequencies */
1393 nl_freqs = nla_nest_start(
1394 msg, NL80211_BAND_ATTR_FREQS);
1396 goto nla_put_failure;
1398 for (i = state->chan_start - 1;
1399 i < sband->n_channels;
1401 nl_freq = nla_nest_start(msg, i);
1403 goto nla_put_failure;
1405 chan = &sband->channels[i];
1407 if (nl80211_msg_put_channel(
1410 goto nla_put_failure;
1412 nla_nest_end(msg, nl_freq);
1416 if (i < sband->n_channels)
1417 state->chan_start = i + 2;
1419 state->chan_start = 0;
1420 nla_nest_end(msg, nl_freqs);
1423 nla_nest_end(msg, nl_band);
1426 /* start again here */
1427 if (state->chan_start)
1432 nla_nest_end(msg, nl_bands);
1434 if (band < IEEE80211_NUM_BANDS)
1435 state->band_start = band + 1;
1437 state->band_start = 0;
1439 /* if bands & channels are done, continue outside */
1440 if (state->band_start == 0 && state->chan_start == 0)
1441 state->split_start++;
1445 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1447 goto nla_put_failure;
1450 #define CMD(op, n) \
1452 if (rdev->ops->op) { \
1454 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1455 goto nla_put_failure; \
1459 CMD(add_virtual_intf, NEW_INTERFACE);
1460 CMD(change_virtual_intf, SET_INTERFACE);
1461 CMD(add_key, NEW_KEY);
1462 CMD(start_ap, START_AP);
1463 CMD(add_station, NEW_STATION);
1464 CMD(add_mpath, NEW_MPATH);
1465 CMD(update_mesh_config, SET_MESH_CONFIG);
1466 CMD(change_bss, SET_BSS);
1467 CMD(auth, AUTHENTICATE);
1468 CMD(assoc, ASSOCIATE);
1469 CMD(deauth, DEAUTHENTICATE);
1470 CMD(disassoc, DISASSOCIATE);
1471 CMD(join_ibss, JOIN_IBSS);
1472 CMD(join_mesh, JOIN_MESH);
1473 CMD(set_pmksa, SET_PMKSA);
1474 CMD(del_pmksa, DEL_PMKSA);
1475 CMD(flush_pmksa, FLUSH_PMKSA);
1476 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1477 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1478 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1479 CMD(mgmt_tx, FRAME);
1480 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1481 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1483 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1484 goto nla_put_failure;
1486 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1487 rdev->ops->join_mesh) {
1489 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1490 goto nla_put_failure;
1492 CMD(set_wds_peer, SET_WDS_PEER);
1493 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1494 CMD(tdls_mgmt, TDLS_MGMT);
1495 CMD(tdls_oper, TDLS_OPER);
1497 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1498 CMD(sched_scan_start, START_SCHED_SCAN);
1499 CMD(probe_client, PROBE_CLIENT);
1500 CMD(set_noack_map, SET_NOACK_MAP);
1501 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1503 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1504 goto nla_put_failure;
1506 CMD(start_p2p_device, START_P2P_DEVICE);
1507 CMD(set_mcast_rate, SET_MCAST_RATE);
1508 #ifdef CONFIG_NL80211_TESTMODE
1509 CMD(testmode_cmd, TESTMODE);
1512 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1513 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1514 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1515 CMD(channel_switch, CHANNEL_SWITCH);
1516 CMD(set_qos_map, SET_QOS_MAP);
1517 if (rdev->wiphy.flags &
1518 WIPHY_FLAG_SUPPORTS_WMM_ADMISSION)
1519 CMD(add_tx_ts, ADD_TX_TS);
1521 /* add into the if now */
1524 if (rdev->ops->connect || rdev->ops->auth) {
1526 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1527 goto nla_put_failure;
1530 if (rdev->ops->disconnect || rdev->ops->deauth) {
1532 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1533 goto nla_put_failure;
1536 nla_nest_end(msg, nl_cmds);
1537 state->split_start++;
1541 if (rdev->ops->remain_on_channel &&
1542 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1544 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1545 rdev->wiphy.max_remain_on_channel_duration))
1546 goto nla_put_failure;
1548 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1549 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1550 goto nla_put_failure;
1552 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1553 goto nla_put_failure;
1554 state->split_start++;
1559 if (nl80211_send_wowlan(msg, rdev, state->split))
1560 goto nla_put_failure;
1561 state->split_start++;
1565 state->split_start++;
1568 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1569 rdev->wiphy.software_iftypes))
1570 goto nla_put_failure;
1572 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1574 goto nla_put_failure;
1576 state->split_start++;
1580 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1581 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1582 rdev->wiphy.ap_sme_capa))
1583 goto nla_put_failure;
1585 features = rdev->wiphy.features;
1587 * We can only add the per-channel limit information if the
1588 * dump is split, otherwise it makes it too big. Therefore
1589 * only advertise it in that case.
1592 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1593 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1594 goto nla_put_failure;
1596 if (rdev->wiphy.ht_capa_mod_mask &&
1597 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1598 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1599 rdev->wiphy.ht_capa_mod_mask))
1600 goto nla_put_failure;
1602 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1603 rdev->wiphy.max_acl_mac_addrs &&
1604 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1605 rdev->wiphy.max_acl_mac_addrs))
1606 goto nla_put_failure;
1609 * Any information below this point is only available to
1610 * applications that can deal with it being split. This
1611 * helps ensure that newly added capabilities don't break
1612 * older tools by overrunning their buffers.
1614 * We still increment split_start so that in the split
1615 * case we'll continue with more data in the next round,
1616 * but break unconditionally so unsplit data stops here.
1618 state->split_start++;
1621 if (rdev->wiphy.extended_capabilities &&
1622 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1623 rdev->wiphy.extended_capabilities_len,
1624 rdev->wiphy.extended_capabilities) ||
1625 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1626 rdev->wiphy.extended_capabilities_len,
1627 rdev->wiphy.extended_capabilities_mask)))
1628 goto nla_put_failure;
1630 if (rdev->wiphy.vht_capa_mod_mask &&
1631 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1632 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1633 rdev->wiphy.vht_capa_mod_mask))
1634 goto nla_put_failure;
1636 state->split_start++;
1639 if (nl80211_send_coalesce(msg, rdev))
1640 goto nla_put_failure;
1642 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1643 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1644 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1645 goto nla_put_failure;
1647 if (rdev->wiphy.max_ap_assoc_sta &&
1648 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1649 rdev->wiphy.max_ap_assoc_sta))
1650 goto nla_put_failure;
1652 state->split_start++;
1655 if (rdev->wiphy.n_vendor_commands) {
1656 const struct nl80211_vendor_cmd_info *info;
1657 struct nlattr *nested;
1659 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1661 goto nla_put_failure;
1663 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1664 info = &rdev->wiphy.vendor_commands[i].info;
1665 if (nla_put(msg, i + 1, sizeof(*info), info))
1666 goto nla_put_failure;
1668 nla_nest_end(msg, nested);
1671 if (rdev->wiphy.n_vendor_events) {
1672 const struct nl80211_vendor_cmd_info *info;
1673 struct nlattr *nested;
1675 nested = nla_nest_start(msg,
1676 NL80211_ATTR_VENDOR_EVENTS);
1678 goto nla_put_failure;
1680 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1681 info = &rdev->wiphy.vendor_events[i];
1682 if (nla_put(msg, i + 1, sizeof(*info), info))
1683 goto nla_put_failure;
1685 nla_nest_end(msg, nested);
1687 state->split_start++;
1690 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1691 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1692 rdev->wiphy.max_num_csa_counters))
1693 goto nla_put_failure;
1696 state->split_start = 0;
1700 return genlmsg_end(msg, hdr);
1703 genlmsg_cancel(msg, hdr);
1707 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1708 struct netlink_callback *cb,
1709 struct nl80211_dump_wiphy_state *state)
1711 struct nlattr **tb = nl80211_fam.attrbuf;
1712 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1713 tb, nl80211_fam.maxattr, nl80211_policy);
1714 /* ignore parse errors for backward compatibility */
1718 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1719 if (tb[NL80211_ATTR_WIPHY])
1720 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1721 if (tb[NL80211_ATTR_WDEV])
1722 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1723 if (tb[NL80211_ATTR_IFINDEX]) {
1724 struct net_device *netdev;
1725 struct cfg80211_registered_device *rdev;
1726 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1728 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1731 if (netdev->ieee80211_ptr) {
1732 rdev = wiphy_to_rdev(
1733 netdev->ieee80211_ptr->wiphy);
1734 state->filter_wiphy = rdev->wiphy_idx;
1741 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1744 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1745 struct cfg80211_registered_device *rdev;
1749 state = kzalloc(sizeof(*state), GFP_KERNEL);
1754 state->filter_wiphy = -1;
1755 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1761 cb->args[0] = (long)state;
1764 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1765 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1767 if (++idx <= state->start)
1769 if (state->filter_wiphy != -1 &&
1770 state->filter_wiphy != rdev->wiphy_idx)
1772 /* attempt to fit multiple wiphy data chunks into the skb */
1774 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1776 NETLINK_CB(cb->skb).portid,
1778 NLM_F_MULTI, state);
1781 * If sending the wiphy data didn't fit (ENOBUFS
1782 * or EMSGSIZE returned), this SKB is still
1783 * empty (so it's not too big because another
1784 * wiphy dataset is already in the skb) and
1785 * we've not tried to adjust the dump allocation
1786 * yet ... then adjust the alloc size to be
1787 * bigger, and return 1 but with the empty skb.
1788 * This results in an empty message being RX'ed
1789 * in userspace, but that is ignored.
1791 * We can then retry with the larger buffer.
1793 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1794 !skb->len && !state->split &&
1795 cb->min_dump_alloc < 4096) {
1796 cb->min_dump_alloc = 4096;
1797 state->split_start = 0;
1804 } while (state->split_start > 0);
1814 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1816 kfree((void *)cb->args[0]);
1820 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1822 struct sk_buff *msg;
1823 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1824 struct nl80211_dump_wiphy_state state = {};
1826 msg = nlmsg_new(4096, GFP_KERNEL);
1830 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1831 info->snd_portid, info->snd_seq, 0,
1837 return genlmsg_reply(msg, info);
1840 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1841 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1842 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1843 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1844 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1845 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1848 static int parse_txq_params(struct nlattr *tb[],
1849 struct ieee80211_txq_params *txq_params)
1851 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1852 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1853 !tb[NL80211_TXQ_ATTR_AIFS])
1856 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1857 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1858 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1859 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1860 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1862 if (txq_params->ac >= NL80211_NUM_ACS)
1868 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1871 * You can only set the channel explicitly for WDS interfaces,
1872 * all others have their channel managed via their respective
1873 * "establish a connection" command (connect, join, ...)
1875 * For AP/GO and mesh mode, the channel can be set with the
1876 * channel userspace API, but is only stored and passed to the
1877 * low-level driver when the AP starts or the mesh is joined.
1878 * This is for backward compatibility, userspace can also give
1879 * the channel in the start-ap or join-mesh commands instead.
1881 * Monitors are special as they are normally slaved to
1882 * whatever else is going on, so they have their own special
1883 * operation to set the monitor channel if possible.
1886 wdev->iftype == NL80211_IFTYPE_AP ||
1887 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1888 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1889 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1892 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1893 struct genl_info *info,
1894 struct cfg80211_chan_def *chandef)
1898 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1901 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1903 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1904 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1905 chandef->center_freq1 = control_freq;
1906 chandef->center_freq2 = 0;
1908 /* Primary channel not allowed */
1909 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1912 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1913 enum nl80211_channel_type chantype;
1915 chantype = nla_get_u32(
1916 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1919 case NL80211_CHAN_NO_HT:
1920 case NL80211_CHAN_HT20:
1921 case NL80211_CHAN_HT40PLUS:
1922 case NL80211_CHAN_HT40MINUS:
1923 cfg80211_chandef_create(chandef, chandef->chan,
1929 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1931 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1932 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1933 chandef->center_freq1 =
1935 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1936 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1937 chandef->center_freq2 =
1939 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1942 if (!cfg80211_chandef_valid(chandef))
1945 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1946 IEEE80211_CHAN_DISABLED))
1949 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1950 chandef->width == NL80211_CHAN_WIDTH_10) &&
1951 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1957 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1958 struct net_device *dev,
1959 struct genl_info *info)
1961 struct cfg80211_chan_def chandef;
1963 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1964 struct wireless_dev *wdev = NULL;
1967 wdev = dev->ieee80211_ptr;
1968 if (!nl80211_can_set_dev_channel(wdev))
1971 iftype = wdev->iftype;
1973 result = nl80211_parse_chandef(rdev, info, &chandef);
1978 case NL80211_IFTYPE_AP:
1979 case NL80211_IFTYPE_P2P_GO:
1980 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &chandef, iftype)) {
1984 if (wdev->beacon_interval) {
1985 if (!dev || !rdev->ops->set_ap_chanwidth ||
1986 !(rdev->wiphy.features &
1987 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
1992 /* Only allow dynamic channel width changes */
1993 if (chandef.chan != wdev->preset_chandef.chan) {
1997 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2001 wdev->preset_chandef = chandef;
2004 case NL80211_IFTYPE_MESH_POINT:
2005 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2007 case NL80211_IFTYPE_MONITOR:
2008 result = cfg80211_set_monitor_channel(rdev, &chandef);
2017 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2019 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2020 struct net_device *netdev = info->user_ptr[1];
2022 return __nl80211_set_channel(rdev, netdev, info);
2025 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2027 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2028 struct net_device *dev = info->user_ptr[1];
2029 struct wireless_dev *wdev = dev->ieee80211_ptr;
2032 if (!info->attrs[NL80211_ATTR_MAC])
2035 if (netif_running(dev))
2038 if (!rdev->ops->set_wds_peer)
2041 if (wdev->iftype != NL80211_IFTYPE_WDS)
2044 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2045 return rdev_set_wds_peer(rdev, dev, bssid);
2049 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2051 struct cfg80211_registered_device *rdev;
2052 struct net_device *netdev = NULL;
2053 struct wireless_dev *wdev;
2054 int result = 0, rem_txq_params = 0;
2055 struct nlattr *nl_txq_params;
2057 u8 retry_short = 0, retry_long = 0;
2058 u32 frag_threshold = 0, rts_threshold = 0;
2059 u8 coverage_class = 0;
2064 * Try to find the wiphy and netdev. Normally this
2065 * function shouldn't need the netdev, but this is
2066 * done for backward compatibility -- previously
2067 * setting the channel was done per wiphy, but now
2068 * it is per netdev. Previous userland like hostapd
2069 * also passed a netdev to set_wiphy, so that it is
2070 * possible to let that go to the right netdev!
2073 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2074 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2076 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2077 if (netdev && netdev->ieee80211_ptr)
2078 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2084 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2087 return PTR_ERR(rdev);
2092 wdev = netdev->ieee80211_ptr;
2095 * end workaround code, by now the rdev is available
2096 * and locked, and wdev may or may not be NULL.
2099 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2100 result = cfg80211_dev_rename(
2101 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2106 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2107 struct ieee80211_txq_params txq_params;
2108 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2110 if (!rdev->ops->set_txq_params)
2116 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2117 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2120 if (!netif_running(netdev))
2123 nla_for_each_nested(nl_txq_params,
2124 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2126 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2127 nla_data(nl_txq_params),
2128 nla_len(nl_txq_params),
2132 result = parse_txq_params(tb, &txq_params);
2136 result = rdev_set_txq_params(rdev, netdev,
2143 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2144 result = __nl80211_set_channel(
2146 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2152 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2153 struct wireless_dev *txp_wdev = wdev;
2154 enum nl80211_tx_power_setting type;
2157 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2160 if (!rdev->ops->set_tx_power)
2163 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2164 type = nla_get_u32(info->attrs[idx]);
2166 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2167 (type != NL80211_TX_POWER_AUTOMATIC))
2170 if (type != NL80211_TX_POWER_AUTOMATIC) {
2171 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2172 mbm = nla_get_u32(info->attrs[idx]);
2175 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2180 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2181 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2183 if ((!rdev->wiphy.available_antennas_tx &&
2184 !rdev->wiphy.available_antennas_rx) ||
2185 !rdev->ops->set_antenna)
2188 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2189 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2191 /* reject antenna configurations which don't match the
2192 * available antenna masks, except for the "all" mask */
2193 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2194 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2197 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2198 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2200 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2207 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2208 retry_short = nla_get_u8(
2209 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2210 if (retry_short == 0)
2213 changed |= WIPHY_PARAM_RETRY_SHORT;
2216 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2217 retry_long = nla_get_u8(
2218 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2219 if (retry_long == 0)
2222 changed |= WIPHY_PARAM_RETRY_LONG;
2225 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2226 frag_threshold = nla_get_u32(
2227 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2228 if (frag_threshold < 256)
2231 if (frag_threshold != (u32) -1) {
2233 * Fragments (apart from the last one) are required to
2234 * have even length. Make the fragmentation code
2235 * simpler by stripping LSB should someone try to use
2236 * odd threshold value.
2238 frag_threshold &= ~0x1;
2240 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2243 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2244 rts_threshold = nla_get_u32(
2245 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2246 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2249 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2250 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2253 coverage_class = nla_get_u8(
2254 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2255 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2258 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2259 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2262 changed |= WIPHY_PARAM_DYN_ACK;
2266 u8 old_retry_short, old_retry_long;
2267 u32 old_frag_threshold, old_rts_threshold;
2268 u8 old_coverage_class;
2270 if (!rdev->ops->set_wiphy_params)
2273 old_retry_short = rdev->wiphy.retry_short;
2274 old_retry_long = rdev->wiphy.retry_long;
2275 old_frag_threshold = rdev->wiphy.frag_threshold;
2276 old_rts_threshold = rdev->wiphy.rts_threshold;
2277 old_coverage_class = rdev->wiphy.coverage_class;
2279 if (changed & WIPHY_PARAM_RETRY_SHORT)
2280 rdev->wiphy.retry_short = retry_short;
2281 if (changed & WIPHY_PARAM_RETRY_LONG)
2282 rdev->wiphy.retry_long = retry_long;
2283 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2284 rdev->wiphy.frag_threshold = frag_threshold;
2285 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2286 rdev->wiphy.rts_threshold = rts_threshold;
2287 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2288 rdev->wiphy.coverage_class = coverage_class;
2290 result = rdev_set_wiphy_params(rdev, changed);
2292 rdev->wiphy.retry_short = old_retry_short;
2293 rdev->wiphy.retry_long = old_retry_long;
2294 rdev->wiphy.frag_threshold = old_frag_threshold;
2295 rdev->wiphy.rts_threshold = old_rts_threshold;
2296 rdev->wiphy.coverage_class = old_coverage_class;
2302 static inline u64 wdev_id(struct wireless_dev *wdev)
2304 return (u64)wdev->identifier |
2305 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2308 static int nl80211_send_chandef(struct sk_buff *msg,
2309 const struct cfg80211_chan_def *chandef)
2311 WARN_ON(!cfg80211_chandef_valid(chandef));
2313 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2314 chandef->chan->center_freq))
2316 switch (chandef->width) {
2317 case NL80211_CHAN_WIDTH_20_NOHT:
2318 case NL80211_CHAN_WIDTH_20:
2319 case NL80211_CHAN_WIDTH_40:
2320 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2321 cfg80211_get_chandef_type(chandef)))
2327 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2329 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2331 if (chandef->center_freq2 &&
2332 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2337 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2338 struct cfg80211_registered_device *rdev,
2339 struct wireless_dev *wdev)
2341 struct net_device *dev = wdev->netdev;
2344 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_INTERFACE);
2349 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2350 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2351 goto nla_put_failure;
2353 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2354 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2355 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2356 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2357 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2358 rdev->devlist_generation ^
2359 (cfg80211_rdev_list_generation << 2)))
2360 goto nla_put_failure;
2362 if (rdev->ops->get_channel) {
2364 struct cfg80211_chan_def chandef;
2366 ret = rdev_get_channel(rdev, wdev, &chandef);
2368 if (nl80211_send_chandef(msg, &chandef))
2369 goto nla_put_failure;
2373 if (wdev->ssid_len) {
2374 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2375 goto nla_put_failure;
2378 return genlmsg_end(msg, hdr);
2381 genlmsg_cancel(msg, hdr);
2385 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2389 int wp_start = cb->args[0];
2390 int if_start = cb->args[1];
2391 struct cfg80211_registered_device *rdev;
2392 struct wireless_dev *wdev;
2395 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2396 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2398 if (wp_idx < wp_start) {
2404 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2405 if (if_idx < if_start) {
2409 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2410 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2422 cb->args[0] = wp_idx;
2423 cb->args[1] = if_idx;
2428 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2430 struct sk_buff *msg;
2431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2432 struct wireless_dev *wdev = info->user_ptr[1];
2434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2438 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2444 return genlmsg_reply(msg, info);
2447 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2448 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2449 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2450 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2451 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2452 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2453 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2456 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2458 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2466 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2467 nla, mntr_flags_policy))
2470 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2472 *mntrflags |= (1<<flag);
2477 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2478 struct net_device *netdev, u8 use_4addr,
2479 enum nl80211_iftype iftype)
2482 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2488 case NL80211_IFTYPE_AP_VLAN:
2489 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2492 case NL80211_IFTYPE_STATION:
2493 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2503 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2505 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2506 struct vif_params params;
2508 enum nl80211_iftype otype, ntype;
2509 struct net_device *dev = info->user_ptr[1];
2510 u32 _flags, *flags = NULL;
2511 bool change = false;
2513 memset(¶ms, 0, sizeof(params));
2515 otype = ntype = dev->ieee80211_ptr->iftype;
2517 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2518 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2521 if (ntype > NL80211_IFTYPE_MAX)
2525 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2526 struct wireless_dev *wdev = dev->ieee80211_ptr;
2528 if (ntype != NL80211_IFTYPE_MESH_POINT)
2530 if (netif_running(dev))
2534 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2535 IEEE80211_MAX_MESH_ID_LEN);
2536 wdev->mesh_id_up_len =
2537 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2538 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2539 wdev->mesh_id_up_len);
2543 if (info->attrs[NL80211_ATTR_4ADDR]) {
2544 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2546 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2550 params.use_4addr = -1;
2553 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2554 if (ntype != NL80211_IFTYPE_MONITOR)
2556 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2565 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2566 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2570 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2574 if (!err && params.use_4addr != -1)
2575 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2580 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2583 struct vif_params params;
2584 struct wireless_dev *wdev;
2585 struct sk_buff *msg;
2587 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2590 /* to avoid failing a new interface creation due to pending removal */
2591 cfg80211_destroy_ifaces(rdev);
2593 memset(¶ms, 0, sizeof(params));
2595 if (!info->attrs[NL80211_ATTR_IFNAME])
2598 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2599 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2600 if (type > NL80211_IFTYPE_MAX)
2604 if (!rdev->ops->add_virtual_intf ||
2605 !(rdev->wiphy.interface_modes & (1 << type)))
2608 if (type == NL80211_IFTYPE_P2P_DEVICE && info->attrs[NL80211_ATTR_MAC]) {
2609 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2611 if (!is_valid_ether_addr(params.macaddr))
2612 return -EADDRNOTAVAIL;
2615 if (info->attrs[NL80211_ATTR_4ADDR]) {
2616 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2617 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2622 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2626 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2627 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2630 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2631 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2634 wdev = rdev_add_virtual_intf(rdev,
2635 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2636 type, err ? NULL : &flags, ¶ms);
2639 return PTR_ERR(wdev);
2642 if (info->attrs[NL80211_ATTR_IFACE_SOCKET_OWNER])
2643 wdev->owner_nlportid = info->snd_portid;
2646 case NL80211_IFTYPE_MESH_POINT:
2647 if (!info->attrs[NL80211_ATTR_MESH_ID])
2650 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2651 IEEE80211_MAX_MESH_ID_LEN);
2652 wdev->mesh_id_up_len =
2653 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2654 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2655 wdev->mesh_id_up_len);
2658 case NL80211_IFTYPE_P2P_DEVICE:
2660 * P2P Device doesn't have a netdev, so doesn't go
2661 * through the netdev notifier and must be added here
2663 mutex_init(&wdev->mtx);
2664 INIT_LIST_HEAD(&wdev->event_list);
2665 spin_lock_init(&wdev->event_lock);
2666 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2667 spin_lock_init(&wdev->mgmt_registrations_lock);
2669 wdev->identifier = ++rdev->wdev_id;
2670 list_add_rcu(&wdev->list, &rdev->wdev_list);
2671 rdev->devlist_generation++;
2677 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2683 return genlmsg_reply(msg, info);
2686 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2688 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2689 struct wireless_dev *wdev = info->user_ptr[1];
2691 if (!rdev->ops->del_virtual_intf)
2695 * If we remove a wireless device without a netdev then clear
2696 * user_ptr[1] so that nl80211_post_doit won't dereference it
2697 * to check if it needs to do dev_put(). Otherwise it crashes
2698 * since the wdev has been freed, unlike with a netdev where
2699 * we need the dev_put() for the netdev to really be freed.
2702 info->user_ptr[1] = NULL;
2704 return rdev_del_virtual_intf(rdev, wdev);
2707 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2709 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2710 struct net_device *dev = info->user_ptr[1];
2713 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2716 if (!rdev->ops->set_noack_map)
2719 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2721 return rdev_set_noack_map(rdev, dev, noack_map);
2724 struct get_key_cookie {
2725 struct sk_buff *msg;
2730 static void get_key_callback(void *c, struct key_params *params)
2733 struct get_key_cookie *cookie = c;
2736 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2737 params->key_len, params->key)) ||
2739 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2740 params->seq_len, params->seq)) ||
2742 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2744 goto nla_put_failure;
2746 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2748 goto nla_put_failure;
2751 nla_put(cookie->msg, NL80211_KEY_DATA,
2752 params->key_len, params->key)) ||
2754 nla_put(cookie->msg, NL80211_KEY_SEQ,
2755 params->seq_len, params->seq)) ||
2757 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2759 goto nla_put_failure;
2761 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2762 goto nla_put_failure;
2764 nla_nest_end(cookie->msg, key);
2771 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2773 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2775 struct net_device *dev = info->user_ptr[1];
2777 const u8 *mac_addr = NULL;
2779 struct get_key_cookie cookie = {
2783 struct sk_buff *msg;
2785 if (info->attrs[NL80211_ATTR_KEY_IDX])
2786 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2791 if (info->attrs[NL80211_ATTR_MAC])
2792 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2794 pairwise = !!mac_addr;
2795 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2796 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2797 if (kt >= NUM_NL80211_KEYTYPES)
2799 if (kt != NL80211_KEYTYPE_GROUP &&
2800 kt != NL80211_KEYTYPE_PAIRWISE)
2802 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2805 if (!rdev->ops->get_key)
2808 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2812 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2813 NL80211_CMD_NEW_KEY);
2815 goto nla_put_failure;
2818 cookie.idx = key_idx;
2820 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2821 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2822 goto nla_put_failure;
2824 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2825 goto nla_put_failure;
2827 if (pairwise && mac_addr &&
2828 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2831 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2838 goto nla_put_failure;
2840 genlmsg_end(msg, hdr);
2841 return genlmsg_reply(msg, info);
2850 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2852 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2853 struct key_parse key;
2855 struct net_device *dev = info->user_ptr[1];
2857 err = nl80211_parse_key(info, &key);
2864 /* only support setting default key */
2865 if (!key.def && !key.defmgmt)
2868 wdev_lock(dev->ieee80211_ptr);
2871 if (!rdev->ops->set_default_key) {
2876 err = nl80211_key_allowed(dev->ieee80211_ptr);
2880 err = rdev_set_default_key(rdev, dev, key.idx,
2881 key.def_uni, key.def_multi);
2886 #ifdef CONFIG_CFG80211_WEXT
2887 dev->ieee80211_ptr->wext.default_key = key.idx;
2890 if (key.def_uni || !key.def_multi) {
2895 if (!rdev->ops->set_default_mgmt_key) {
2900 err = nl80211_key_allowed(dev->ieee80211_ptr);
2904 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2908 #ifdef CONFIG_CFG80211_WEXT
2909 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2914 wdev_unlock(dev->ieee80211_ptr);
2919 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2923 struct net_device *dev = info->user_ptr[1];
2924 struct key_parse key;
2925 const u8 *mac_addr = NULL;
2927 err = nl80211_parse_key(info, &key);
2934 if (info->attrs[NL80211_ATTR_MAC])
2935 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2937 if (key.type == -1) {
2939 key.type = NL80211_KEYTYPE_PAIRWISE;
2941 key.type = NL80211_KEYTYPE_GROUP;
2945 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2946 key.type != NL80211_KEYTYPE_GROUP)
2949 if (!rdev->ops->add_key)
2952 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
2953 key.type == NL80211_KEYTYPE_PAIRWISE,
2957 wdev_lock(dev->ieee80211_ptr);
2958 err = nl80211_key_allowed(dev->ieee80211_ptr);
2960 err = rdev_add_key(rdev, dev, key.idx,
2961 key.type == NL80211_KEYTYPE_PAIRWISE,
2963 wdev_unlock(dev->ieee80211_ptr);
2968 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
2970 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2972 struct net_device *dev = info->user_ptr[1];
2973 u8 *mac_addr = NULL;
2974 struct key_parse key;
2976 err = nl80211_parse_key(info, &key);
2980 if (info->attrs[NL80211_ATTR_MAC])
2981 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2983 if (key.type == -1) {
2985 key.type = NL80211_KEYTYPE_PAIRWISE;
2987 key.type = NL80211_KEYTYPE_GROUP;
2991 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
2992 key.type != NL80211_KEYTYPE_GROUP)
2995 if (!rdev->ops->del_key)
2998 wdev_lock(dev->ieee80211_ptr);
2999 err = nl80211_key_allowed(dev->ieee80211_ptr);
3001 if (key.type == NL80211_KEYTYPE_PAIRWISE && mac_addr &&
3002 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3006 err = rdev_del_key(rdev, dev, key.idx,
3007 key.type == NL80211_KEYTYPE_PAIRWISE,
3010 #ifdef CONFIG_CFG80211_WEXT
3012 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3013 dev->ieee80211_ptr->wext.default_key = -1;
3014 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3015 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3018 wdev_unlock(dev->ieee80211_ptr);
3023 /* This function returns an error or the number of nested attributes */
3024 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3026 struct nlattr *attr;
3027 int n_entries = 0, tmp;
3029 nla_for_each_nested(attr, nl_attr, tmp) {
3030 if (nla_len(attr) != ETH_ALEN)
3040 * This function parses ACL information and allocates memory for ACL data.
3041 * On successful return, the calling function is responsible to free the
3042 * ACL buffer returned by this function.
3044 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3045 struct genl_info *info)
3047 enum nl80211_acl_policy acl_policy;
3048 struct nlattr *attr;
3049 struct cfg80211_acl_data *acl;
3050 int i = 0, n_entries, tmp;
3052 if (!wiphy->max_acl_mac_addrs)
3053 return ERR_PTR(-EOPNOTSUPP);
3055 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3056 return ERR_PTR(-EINVAL);
3058 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3059 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3060 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3061 return ERR_PTR(-EINVAL);
3063 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3064 return ERR_PTR(-EINVAL);
3066 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3068 return ERR_PTR(n_entries);
3070 if (n_entries > wiphy->max_acl_mac_addrs)
3071 return ERR_PTR(-ENOTSUPP);
3073 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3076 return ERR_PTR(-ENOMEM);
3078 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3079 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3083 acl->n_acl_entries = n_entries;
3084 acl->acl_policy = acl_policy;
3089 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3091 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3092 struct net_device *dev = info->user_ptr[1];
3093 struct cfg80211_acl_data *acl;
3096 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3097 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3100 if (!dev->ieee80211_ptr->beacon_interval)
3103 acl = parse_acl_data(&rdev->wiphy, info);
3105 return PTR_ERR(acl);
3107 err = rdev_set_mac_acl(rdev, dev, acl);
3114 static int nl80211_parse_beacon(struct nlattr *attrs[],
3115 struct cfg80211_beacon_data *bcn)
3117 bool haveinfo = false;
3119 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3120 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3121 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3122 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3125 memset(bcn, 0, sizeof(*bcn));
3127 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3128 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3129 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3135 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3136 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3137 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3144 if (attrs[NL80211_ATTR_IE]) {
3145 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3146 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3149 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3150 bcn->proberesp_ies =
3151 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3152 bcn->proberesp_ies_len =
3153 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3156 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3157 bcn->assocresp_ies =
3158 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3159 bcn->assocresp_ies_len =
3160 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3163 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3164 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3165 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3171 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3172 struct cfg80211_ap_settings *params)
3174 struct wireless_dev *wdev;
3177 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3178 if (wdev->iftype != NL80211_IFTYPE_AP &&
3179 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3182 if (!wdev->preset_chandef.chan)
3185 params->chandef = wdev->preset_chandef;
3193 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3194 enum nl80211_auth_type auth_type,
3195 enum nl80211_commands cmd)
3197 if (auth_type > NL80211_AUTHTYPE_MAX)
3201 case NL80211_CMD_AUTHENTICATE:
3202 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3203 auth_type == NL80211_AUTHTYPE_SAE)
3206 case NL80211_CMD_CONNECT:
3207 case NL80211_CMD_START_AP:
3208 /* SAE not supported yet */
3209 if (auth_type == NL80211_AUTHTYPE_SAE)
3217 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3219 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3220 struct net_device *dev = info->user_ptr[1];
3221 struct wireless_dev *wdev = dev->ieee80211_ptr;
3222 struct cfg80211_ap_settings params;
3225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3229 if (!rdev->ops->start_ap)
3232 if (wdev->beacon_interval)
3235 memset(¶ms, 0, sizeof(params));
3237 /* these are required for START_AP */
3238 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3239 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3240 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3243 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3247 params.beacon_interval =
3248 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3249 params.dtim_period =
3250 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3252 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3257 * In theory, some of these attributes should be required here
3258 * but since they were not used when the command was originally
3259 * added, keep them optional for old user space programs to let
3260 * them continue to work with drivers that do not need the
3261 * additional information -- drivers must check!
3263 if (info->attrs[NL80211_ATTR_SSID]) {
3264 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3266 nla_len(info->attrs[NL80211_ATTR_SSID]);
3267 if (params.ssid_len == 0 ||
3268 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3272 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3273 params.hidden_ssid = nla_get_u32(
3274 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3275 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3276 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3277 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3281 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3283 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3284 params.auth_type = nla_get_u32(
3285 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3286 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3287 NL80211_CMD_START_AP))
3290 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3292 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3293 NL80211_MAX_NR_CIPHER_SUITES);
3297 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3298 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3300 params.inactivity_timeout = nla_get_u16(
3301 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3304 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3305 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3307 params.p2p_ctwindow =
3308 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3309 if (params.p2p_ctwindow > 127)
3311 if (params.p2p_ctwindow != 0 &&
3312 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3316 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3319 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3321 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3324 params.p2p_opp_ps = tmp;
3325 if (params.p2p_opp_ps != 0 &&
3326 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3330 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3331 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3334 } else if (wdev->preset_chandef.chan) {
3335 params.chandef = wdev->preset_chandef;
3336 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3339 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
3343 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3344 params.acl = parse_acl_data(&rdev->wiphy, info);
3345 if (IS_ERR(params.acl))
3346 return PTR_ERR(params.acl);
3349 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3351 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3352 switch (params.smps_mode) {
3353 case NL80211_SMPS_OFF:
3355 case NL80211_SMPS_STATIC:
3356 if (!(rdev->wiphy.features &
3357 NL80211_FEATURE_STATIC_SMPS))
3360 case NL80211_SMPS_DYNAMIC:
3361 if (!(rdev->wiphy.features &
3362 NL80211_FEATURE_DYNAMIC_SMPS))
3369 params.smps_mode = NL80211_SMPS_OFF;
3373 err = rdev_start_ap(rdev, dev, ¶ms);
3375 wdev->preset_chandef = params.chandef;
3376 wdev->beacon_interval = params.beacon_interval;
3377 wdev->chandef = params.chandef;
3378 wdev->ssid_len = params.ssid_len;
3379 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3388 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3390 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3391 struct net_device *dev = info->user_ptr[1];
3392 struct wireless_dev *wdev = dev->ieee80211_ptr;
3393 struct cfg80211_beacon_data params;
3396 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3397 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3400 if (!rdev->ops->change_beacon)
3403 if (!wdev->beacon_interval)
3406 err = nl80211_parse_beacon(info->attrs, ¶ms);
3411 err = rdev_change_beacon(rdev, dev, ¶ms);
3417 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3419 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3420 struct net_device *dev = info->user_ptr[1];
3422 return cfg80211_stop_ap(rdev, dev, false);
3425 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3426 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3427 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3428 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3429 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3430 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3431 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3434 static int parse_station_flags(struct genl_info *info,
3435 enum nl80211_iftype iftype,
3436 struct station_parameters *params)
3438 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3443 * Try parsing the new attribute first so userspace
3444 * can specify both for older kernels.
3446 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3448 struct nl80211_sta_flag_update *sta_flags;
3450 sta_flags = nla_data(nla);
3451 params->sta_flags_mask = sta_flags->mask;
3452 params->sta_flags_set = sta_flags->set;
3453 params->sta_flags_set &= params->sta_flags_mask;
3454 if ((params->sta_flags_mask |
3455 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3460 /* if present, parse the old attribute */
3462 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3466 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3467 nla, sta_flags_policy))
3471 * Only allow certain flags for interface types so that
3472 * other attributes are silently ignored. Remember that
3473 * this is backward compatibility code with old userspace
3474 * and shouldn't be hit in other cases anyway.
3477 case NL80211_IFTYPE_AP:
3478 case NL80211_IFTYPE_AP_VLAN:
3479 case NL80211_IFTYPE_P2P_GO:
3480 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3481 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3482 BIT(NL80211_STA_FLAG_WME) |
3483 BIT(NL80211_STA_FLAG_MFP);
3485 case NL80211_IFTYPE_P2P_CLIENT:
3486 case NL80211_IFTYPE_STATION:
3487 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3488 BIT(NL80211_STA_FLAG_TDLS_PEER);
3490 case NL80211_IFTYPE_MESH_POINT:
3491 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3492 BIT(NL80211_STA_FLAG_MFP) |
3493 BIT(NL80211_STA_FLAG_AUTHORIZED);
3498 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3500 params->sta_flags_set |= (1<<flag);
3502 /* no longer support new API additions in old API */
3503 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3511 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3514 struct nlattr *rate;
3518 rate = nla_nest_start(msg, attr);
3522 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3523 bitrate = cfg80211_calculate_bitrate(info);
3524 /* report 16-bit bitrate only if we can */
3525 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3527 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3529 if (bitrate_compat > 0 &&
3530 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3533 if (info->flags & RATE_INFO_FLAGS_MCS) {
3534 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3536 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3537 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3539 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3540 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3542 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3543 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3545 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3547 if (info->flags & RATE_INFO_FLAGS_40_MHZ_WIDTH &&
3548 nla_put_flag(msg, NL80211_RATE_INFO_40_MHZ_WIDTH))
3550 if (info->flags & RATE_INFO_FLAGS_80_MHZ_WIDTH &&
3551 nla_put_flag(msg, NL80211_RATE_INFO_80_MHZ_WIDTH))
3553 if (info->flags & RATE_INFO_FLAGS_80P80_MHZ_WIDTH &&
3554 nla_put_flag(msg, NL80211_RATE_INFO_80P80_MHZ_WIDTH))
3556 if (info->flags & RATE_INFO_FLAGS_160_MHZ_WIDTH &&
3557 nla_put_flag(msg, NL80211_RATE_INFO_160_MHZ_WIDTH))
3559 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3560 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3564 nla_nest_end(msg, rate);
3568 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3577 attr = nla_nest_start(msg, id);
3581 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3582 if (!(mask & BIT(i)))
3585 if (nla_put_u8(msg, i, signal[i]))
3589 nla_nest_end(msg, attr);
3594 static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
3596 struct cfg80211_registered_device *rdev,
3597 struct net_device *dev,
3598 const u8 *mac_addr, struct station_info *sinfo)
3601 struct nlattr *sinfoattr, *bss_param;
3603 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
3607 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3608 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3609 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3610 goto nla_put_failure;
3612 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3614 goto nla_put_failure;
3615 if ((sinfo->filled & STATION_INFO_CONNECTED_TIME) &&
3616 nla_put_u32(msg, NL80211_STA_INFO_CONNECTED_TIME,
3617 sinfo->connected_time))
3618 goto nla_put_failure;
3619 if ((sinfo->filled & STATION_INFO_INACTIVE_TIME) &&
3620 nla_put_u32(msg, NL80211_STA_INFO_INACTIVE_TIME,
3621 sinfo->inactive_time))
3622 goto nla_put_failure;
3623 if ((sinfo->filled & (STATION_INFO_RX_BYTES |
3624 STATION_INFO_RX_BYTES64)) &&
3625 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3626 (u32)sinfo->rx_bytes))
3627 goto nla_put_failure;
3628 if ((sinfo->filled & (STATION_INFO_TX_BYTES |
3629 STATION_INFO_TX_BYTES64)) &&
3630 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3631 (u32)sinfo->tx_bytes))
3632 goto nla_put_failure;
3633 if ((sinfo->filled & STATION_INFO_RX_BYTES64) &&
3634 nla_put_u64(msg, NL80211_STA_INFO_RX_BYTES64,
3636 goto nla_put_failure;
3637 if ((sinfo->filled & STATION_INFO_TX_BYTES64) &&
3638 nla_put_u64(msg, NL80211_STA_INFO_TX_BYTES64,
3640 goto nla_put_failure;
3641 if ((sinfo->filled & STATION_INFO_LLID) &&
3642 nla_put_u16(msg, NL80211_STA_INFO_LLID, sinfo->llid))
3643 goto nla_put_failure;
3644 if ((sinfo->filled & STATION_INFO_PLID) &&
3645 nla_put_u16(msg, NL80211_STA_INFO_PLID, sinfo->plid))
3646 goto nla_put_failure;
3647 if ((sinfo->filled & STATION_INFO_PLINK_STATE) &&
3648 nla_put_u8(msg, NL80211_STA_INFO_PLINK_STATE,
3649 sinfo->plink_state))
3650 goto nla_put_failure;
3651 switch (rdev->wiphy.signal_type) {
3652 case CFG80211_SIGNAL_TYPE_MBM:
3653 if ((sinfo->filled & STATION_INFO_SIGNAL) &&
3654 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL,
3656 goto nla_put_failure;
3657 if ((sinfo->filled & STATION_INFO_SIGNAL_AVG) &&
3658 nla_put_u8(msg, NL80211_STA_INFO_SIGNAL_AVG,
3660 goto nla_put_failure;
3665 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) {
3666 if (!nl80211_put_signal(msg, sinfo->chains,
3667 sinfo->chain_signal,
3668 NL80211_STA_INFO_CHAIN_SIGNAL))
3669 goto nla_put_failure;
3671 if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) {
3672 if (!nl80211_put_signal(msg, sinfo->chains,
3673 sinfo->chain_signal_avg,
3674 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3675 goto nla_put_failure;
3677 if (sinfo->filled & STATION_INFO_TX_BITRATE) {
3678 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3679 NL80211_STA_INFO_TX_BITRATE))
3680 goto nla_put_failure;
3682 if (sinfo->filled & STATION_INFO_RX_BITRATE) {
3683 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3684 NL80211_STA_INFO_RX_BITRATE))
3685 goto nla_put_failure;
3687 if ((sinfo->filled & STATION_INFO_RX_PACKETS) &&
3688 nla_put_u32(msg, NL80211_STA_INFO_RX_PACKETS,
3690 goto nla_put_failure;
3691 if ((sinfo->filled & STATION_INFO_TX_PACKETS) &&
3692 nla_put_u32(msg, NL80211_STA_INFO_TX_PACKETS,
3694 goto nla_put_failure;
3695 if ((sinfo->filled & STATION_INFO_TX_RETRIES) &&
3696 nla_put_u32(msg, NL80211_STA_INFO_TX_RETRIES,
3698 goto nla_put_failure;
3699 if ((sinfo->filled & STATION_INFO_TX_FAILED) &&
3700 nla_put_u32(msg, NL80211_STA_INFO_TX_FAILED,
3702 goto nla_put_failure;
3703 if ((sinfo->filled & STATION_INFO_EXPECTED_THROUGHPUT) &&
3704 nla_put_u32(msg, NL80211_STA_INFO_EXPECTED_THROUGHPUT,
3705 sinfo->expected_throughput))
3706 goto nla_put_failure;
3707 if ((sinfo->filled & STATION_INFO_BEACON_LOSS_COUNT) &&
3708 nla_put_u32(msg, NL80211_STA_INFO_BEACON_LOSS,
3709 sinfo->beacon_loss_count))
3710 goto nla_put_failure;
3711 if ((sinfo->filled & STATION_INFO_LOCAL_PM) &&
3712 nla_put_u32(msg, NL80211_STA_INFO_LOCAL_PM,
3714 goto nla_put_failure;
3715 if ((sinfo->filled & STATION_INFO_PEER_PM) &&
3716 nla_put_u32(msg, NL80211_STA_INFO_PEER_PM,
3718 goto nla_put_failure;
3719 if ((sinfo->filled & STATION_INFO_NONPEER_PM) &&
3720 nla_put_u32(msg, NL80211_STA_INFO_NONPEER_PM,
3722 goto nla_put_failure;
3723 if (sinfo->filled & STATION_INFO_BSS_PARAM) {
3724 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3726 goto nla_put_failure;
3728 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3729 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3730 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3731 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3732 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3733 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3734 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3735 sinfo->bss_param.dtim_period) ||
3736 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3737 sinfo->bss_param.beacon_interval))
3738 goto nla_put_failure;
3740 nla_nest_end(msg, bss_param);
3742 if ((sinfo->filled & STATION_INFO_STA_FLAGS) &&
3743 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3744 sizeof(struct nl80211_sta_flag_update),
3746 goto nla_put_failure;
3747 if ((sinfo->filled & STATION_INFO_T_OFFSET) &&
3748 nla_put_u64(msg, NL80211_STA_INFO_T_OFFSET,
3750 goto nla_put_failure;
3751 nla_nest_end(msg, sinfoattr);
3753 if ((sinfo->filled & STATION_INFO_ASSOC_REQ_IES) &&
3754 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3755 sinfo->assoc_req_ies))
3756 goto nla_put_failure;
3758 return genlmsg_end(msg, hdr);
3761 genlmsg_cancel(msg, hdr);
3765 static int nl80211_dump_station(struct sk_buff *skb,
3766 struct netlink_callback *cb)
3768 struct station_info sinfo;
3769 struct cfg80211_registered_device *rdev;
3770 struct wireless_dev *wdev;
3771 u8 mac_addr[ETH_ALEN];
3772 int sta_idx = cb->args[2];
3775 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3779 if (!wdev->netdev) {
3784 if (!rdev->ops->dump_station) {
3790 memset(&sinfo, 0, sizeof(sinfo));
3791 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3798 if (nl80211_send_station(skb,
3799 NETLINK_CB(cb->skb).portid,
3800 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3801 rdev, wdev->netdev, mac_addr,
3810 cb->args[2] = sta_idx;
3813 nl80211_finish_wdev_dump(rdev);
3818 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3821 struct net_device *dev = info->user_ptr[1];
3822 struct station_info sinfo;
3823 struct sk_buff *msg;
3824 u8 *mac_addr = NULL;
3827 memset(&sinfo, 0, sizeof(sinfo));
3829 if (!info->attrs[NL80211_ATTR_MAC])
3832 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3834 if (!rdev->ops->get_station)
3837 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3841 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3845 if (nl80211_send_station(msg, info->snd_portid, info->snd_seq, 0,
3846 rdev, dev, mac_addr, &sinfo) < 0) {
3851 return genlmsg_reply(msg, info);
3854 int cfg80211_check_station_change(struct wiphy *wiphy,
3855 struct station_parameters *params,
3856 enum cfg80211_station_type statype)
3858 if (params->listen_interval != -1)
3861 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3864 /* When you run into this, adjust the code below for the new flag */
3865 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3868 case CFG80211_STA_MESH_PEER_KERNEL:
3869 case CFG80211_STA_MESH_PEER_USER:
3871 * No ignoring the TDLS flag here -- the userspace mesh
3872 * code doesn't have the bug of including TDLS in the
3875 if (params->sta_flags_mask &
3876 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3877 BIT(NL80211_STA_FLAG_MFP) |
3878 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3881 case CFG80211_STA_TDLS_PEER_SETUP:
3882 case CFG80211_STA_TDLS_PEER_ACTIVE:
3883 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3885 /* ignore since it can't change */
3886 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3889 /* disallow mesh-specific things */
3890 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3892 if (params->local_pm)
3894 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3898 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3899 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3900 /* TDLS can't be set, ... */
3901 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3904 * ... but don't bother the driver with it. This works around
3905 * a hostapd/wpa_supplicant issue -- it always includes the
3906 * TLDS_PEER flag in the mask even for AP mode.
3908 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3911 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
3912 /* reject other things that can't change */
3913 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
3915 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
3917 if (params->supported_rates)
3919 if (params->ext_capab || params->ht_capa || params->vht_capa)
3923 if (statype != CFG80211_STA_AP_CLIENT) {
3929 case CFG80211_STA_AP_MLME_CLIENT:
3930 /* Use this only for authorizing/unauthorizing a station */
3931 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
3934 case CFG80211_STA_AP_CLIENT:
3935 /* accept only the listed bits */
3936 if (params->sta_flags_mask &
3937 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3938 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3939 BIT(NL80211_STA_FLAG_ASSOCIATED) |
3940 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3941 BIT(NL80211_STA_FLAG_WME) |
3942 BIT(NL80211_STA_FLAG_MFP)))
3945 /* but authenticated/associated only if driver handles it */
3946 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
3947 params->sta_flags_mask &
3948 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3949 BIT(NL80211_STA_FLAG_ASSOCIATED)))
3952 case CFG80211_STA_IBSS:
3953 case CFG80211_STA_AP_STA:
3954 /* reject any changes other than AUTHORIZED */
3955 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
3958 case CFG80211_STA_TDLS_PEER_SETUP:
3959 /* reject any changes other than AUTHORIZED or WME */
3960 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
3961 BIT(NL80211_STA_FLAG_WME)))
3963 /* force (at least) rates when authorizing */
3964 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
3965 !params->supported_rates)
3968 case CFG80211_STA_TDLS_PEER_ACTIVE:
3969 /* reject any changes */
3971 case CFG80211_STA_MESH_PEER_KERNEL:
3972 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3975 case CFG80211_STA_MESH_PEER_USER:
3976 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3983 EXPORT_SYMBOL(cfg80211_check_station_change);
3986 * Get vlan interface making sure it is running and on the right wiphy.
3988 static struct net_device *get_vlan(struct genl_info *info,
3989 struct cfg80211_registered_device *rdev)
3991 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
3992 struct net_device *v;
3998 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4000 return ERR_PTR(-ENODEV);
4002 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4007 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4008 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4009 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4014 if (!netif_running(v)) {
4022 return ERR_PTR(ret);
4025 static const struct nla_policy
4026 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4027 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4028 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4031 static int nl80211_parse_sta_wme(struct genl_info *info,
4032 struct station_parameters *params)
4034 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4038 /* parse WME attributes if present */
4039 if (!info->attrs[NL80211_ATTR_STA_WME])
4042 nla = info->attrs[NL80211_ATTR_STA_WME];
4043 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4044 nl80211_sta_wme_policy);
4048 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4049 params->uapsd_queues = nla_get_u8(
4050 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4051 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4054 if (tb[NL80211_STA_WME_MAX_SP])
4055 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4057 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4060 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4065 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4066 struct station_parameters *params)
4068 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4069 params->supported_channels =
4070 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4071 params->supported_channels_len =
4072 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4074 * Need to include at least one (first channel, number of
4075 * channels) tuple for each subband, and must have proper
4076 * tuples for the rest of the data as well.
4078 if (params->supported_channels_len < 2)
4080 if (params->supported_channels_len % 2)
4084 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4085 params->supported_oper_classes =
4086 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4087 params->supported_oper_classes_len =
4088 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4090 * The value of the Length field of the Supported Operating
4091 * Classes element is between 2 and 253.
4093 if (params->supported_oper_classes_len < 2 ||
4094 params->supported_oper_classes_len > 253)
4100 static int nl80211_set_station_tdls(struct genl_info *info,
4101 struct station_parameters *params)
4104 /* Dummy STA entry gets updated once the peer capabilities are known */
4105 if (info->attrs[NL80211_ATTR_PEER_AID])
4106 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4107 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4109 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4110 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4112 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4114 err = nl80211_parse_sta_channel_info(info, params);
4118 return nl80211_parse_sta_wme(info, params);
4121 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4123 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4124 struct net_device *dev = info->user_ptr[1];
4125 struct station_parameters params;
4129 memset(¶ms, 0, sizeof(params));
4131 params.listen_interval = -1;
4133 if (!rdev->ops->change_station)
4136 if (info->attrs[NL80211_ATTR_STA_AID])
4139 if (!info->attrs[NL80211_ATTR_MAC])
4142 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4144 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4145 params.supported_rates =
4146 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4147 params.supported_rates_len =
4148 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4151 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4153 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4154 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4157 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4159 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4160 params.ext_capab_len =
4161 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4164 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4167 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4170 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4171 params.plink_action =
4172 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4173 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4177 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4178 params.plink_state =
4179 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4180 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4182 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4185 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4186 enum nl80211_mesh_power_mode pm = nla_get_u32(
4187 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4189 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4190 pm > NL80211_MESH_POWER_MAX)
4193 params.local_pm = pm;
4196 /* Include parameters for TDLS peer (will check later) */
4197 err = nl80211_set_station_tdls(info, ¶ms);
4201 params.vlan = get_vlan(info, rdev);
4202 if (IS_ERR(params.vlan))
4203 return PTR_ERR(params.vlan);
4205 switch (dev->ieee80211_ptr->iftype) {
4206 case NL80211_IFTYPE_AP:
4207 case NL80211_IFTYPE_AP_VLAN:
4208 case NL80211_IFTYPE_P2P_GO:
4209 case NL80211_IFTYPE_P2P_CLIENT:
4210 case NL80211_IFTYPE_STATION:
4211 case NL80211_IFTYPE_ADHOC:
4212 case NL80211_IFTYPE_MESH_POINT:
4219 /* driver will call cfg80211_check_station_change() */
4220 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4224 dev_put(params.vlan);
4229 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4231 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4233 struct net_device *dev = info->user_ptr[1];
4234 struct station_parameters params;
4235 u8 *mac_addr = NULL;
4237 memset(¶ms, 0, sizeof(params));
4239 if (!rdev->ops->add_station)
4242 if (!info->attrs[NL80211_ATTR_MAC])
4245 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4248 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4251 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4252 !info->attrs[NL80211_ATTR_PEER_AID])
4255 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4256 params.supported_rates =
4257 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4258 params.supported_rates_len =
4259 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4260 params.listen_interval =
4261 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4263 if (info->attrs[NL80211_ATTR_PEER_AID])
4264 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4266 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4267 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4270 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4272 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4273 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4276 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4278 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4279 params.ext_capab_len =
4280 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4283 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4285 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4287 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4289 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4291 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4292 params.opmode_notif_used = true;
4293 params.opmode_notif =
4294 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4297 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4298 params.plink_action =
4299 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4300 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4304 err = nl80211_parse_sta_channel_info(info, ¶ms);
4308 err = nl80211_parse_sta_wme(info, ¶ms);
4312 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4315 /* When you run into this, adjust the code below for the new flag */
4316 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4318 switch (dev->ieee80211_ptr->iftype) {
4319 case NL80211_IFTYPE_AP:
4320 case NL80211_IFTYPE_AP_VLAN:
4321 case NL80211_IFTYPE_P2P_GO:
4322 /* ignore WME attributes if iface/sta is not capable */
4323 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4324 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4325 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4327 /* TDLS peers cannot be added */
4328 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4329 info->attrs[NL80211_ATTR_PEER_AID])
4331 /* but don't bother the driver with it */
4332 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4334 /* allow authenticated/associated only if driver handles it */
4335 if (!(rdev->wiphy.features &
4336 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4337 params.sta_flags_mask &
4338 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4339 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4342 /* must be last in here for error handling */
4343 params.vlan = get_vlan(info, rdev);
4344 if (IS_ERR(params.vlan))
4345 return PTR_ERR(params.vlan);
4347 case NL80211_IFTYPE_MESH_POINT:
4348 /* ignore uAPSD data */
4349 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4351 /* associated is disallowed */
4352 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4354 /* TDLS peers cannot be added */
4355 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4356 info->attrs[NL80211_ATTR_PEER_AID])
4359 case NL80211_IFTYPE_STATION:
4360 case NL80211_IFTYPE_P2P_CLIENT:
4361 /* ignore uAPSD data */
4362 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4364 /* these are disallowed */
4365 if (params.sta_flags_mask &
4366 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4367 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4369 /* Only TDLS peers can be added */
4370 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4372 /* Can only add if TDLS ... */
4373 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4375 /* ... with external setup is supported */
4376 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4379 * Older wpa_supplicant versions always mark the TDLS peer
4380 * as authorized, but it shouldn't yet be.
4382 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4388 /* be aware of params.vlan when changing code here */
4390 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4393 dev_put(params.vlan);
4397 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4399 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4400 struct net_device *dev = info->user_ptr[1];
4401 u8 *mac_addr = NULL;
4403 if (info->attrs[NL80211_ATTR_MAC])
4404 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4406 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4407 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4408 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4409 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4412 if (!rdev->ops->del_station)
4415 return rdev_del_station(rdev, dev, mac_addr);
4418 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4419 int flags, struct net_device *dev,
4420 u8 *dst, u8 *next_hop,
4421 struct mpath_info *pinfo)
4424 struct nlattr *pinfoattr;
4426 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_STATION);
4430 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4431 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4432 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4433 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4434 goto nla_put_failure;
4436 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4438 goto nla_put_failure;
4439 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4440 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4442 goto nla_put_failure;
4443 if (((pinfo->filled & MPATH_INFO_SN) &&
4444 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4445 ((pinfo->filled & MPATH_INFO_METRIC) &&
4446 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4448 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4449 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4451 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4452 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4454 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4455 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4456 pinfo->discovery_timeout)) ||
4457 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4458 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4459 pinfo->discovery_retries)))
4460 goto nla_put_failure;
4462 nla_nest_end(msg, pinfoattr);
4464 return genlmsg_end(msg, hdr);
4467 genlmsg_cancel(msg, hdr);
4471 static int nl80211_dump_mpath(struct sk_buff *skb,
4472 struct netlink_callback *cb)
4474 struct mpath_info pinfo;
4475 struct cfg80211_registered_device *rdev;
4476 struct wireless_dev *wdev;
4478 u8 next_hop[ETH_ALEN];
4479 int path_idx = cb->args[2];
4482 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4486 if (!rdev->ops->dump_mpath) {
4491 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4497 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4504 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4505 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4506 wdev->netdev, dst, next_hop,
4515 cb->args[2] = path_idx;
4518 nl80211_finish_wdev_dump(rdev);
4522 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4524 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4526 struct net_device *dev = info->user_ptr[1];
4527 struct mpath_info pinfo;
4528 struct sk_buff *msg;
4530 u8 next_hop[ETH_ALEN];
4532 memset(&pinfo, 0, sizeof(pinfo));
4534 if (!info->attrs[NL80211_ATTR_MAC])
4537 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4539 if (!rdev->ops->get_mpath)
4542 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4545 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4549 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4553 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4554 dev, dst, next_hop, &pinfo) < 0) {
4559 return genlmsg_reply(msg, info);
4562 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4564 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4565 struct net_device *dev = info->user_ptr[1];
4567 u8 *next_hop = NULL;
4569 if (!info->attrs[NL80211_ATTR_MAC])
4572 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4575 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4576 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4578 if (!rdev->ops->change_mpath)
4581 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4584 return rdev_change_mpath(rdev, dev, dst, next_hop);
4587 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4589 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4590 struct net_device *dev = info->user_ptr[1];
4592 u8 *next_hop = NULL;
4594 if (!info->attrs[NL80211_ATTR_MAC])
4597 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4600 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4601 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4603 if (!rdev->ops->add_mpath)
4606 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4609 return rdev_add_mpath(rdev, dev, dst, next_hop);
4612 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4615 struct net_device *dev = info->user_ptr[1];
4618 if (info->attrs[NL80211_ATTR_MAC])
4619 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4621 if (!rdev->ops->del_mpath)
4624 return rdev_del_mpath(rdev, dev, dst);
4627 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4630 struct net_device *dev = info->user_ptr[1];
4631 struct wireless_dev *wdev = dev->ieee80211_ptr;
4632 struct bss_parameters params;
4635 memset(¶ms, 0, sizeof(params));
4636 /* default to not changing parameters */
4637 params.use_cts_prot = -1;
4638 params.use_short_preamble = -1;
4639 params.use_short_slot_time = -1;
4640 params.ap_isolate = -1;
4641 params.ht_opmode = -1;
4642 params.p2p_ctwindow = -1;
4643 params.p2p_opp_ps = -1;
4645 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4646 params.use_cts_prot =
4647 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4648 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4649 params.use_short_preamble =
4650 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4651 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4652 params.use_short_slot_time =
4653 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4654 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4655 params.basic_rates =
4656 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4657 params.basic_rates_len =
4658 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4660 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4661 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4662 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4664 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4666 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4667 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4669 params.p2p_ctwindow =
4670 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4671 if (params.p2p_ctwindow < 0)
4673 if (params.p2p_ctwindow != 0 &&
4674 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4678 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4681 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4683 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4686 params.p2p_opp_ps = tmp;
4687 if (params.p2p_opp_ps &&
4688 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4692 if (!rdev->ops->change_bss)
4695 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4696 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4700 err = rdev_change_bss(rdev, dev, ¶ms);
4706 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4707 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4708 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4709 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4710 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4711 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4712 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4713 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4716 static int parse_reg_rule(struct nlattr *tb[],
4717 struct ieee80211_reg_rule *reg_rule)
4719 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4720 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4722 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4724 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4726 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4728 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4730 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4733 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4735 freq_range->start_freq_khz =
4736 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4737 freq_range->end_freq_khz =
4738 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4739 freq_range->max_bandwidth_khz =
4740 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4742 power_rule->max_eirp =
4743 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4745 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4746 power_rule->max_antenna_gain =
4747 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4749 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4750 reg_rule->dfs_cac_ms =
4751 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
4756 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4759 enum nl80211_user_reg_hint_type user_reg_hint_type;
4762 * You should only get this when cfg80211 hasn't yet initialized
4763 * completely when built-in to the kernel right between the time
4764 * window between nl80211_init() and regulatory_init(), if that is
4767 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4768 return -EINPROGRESS;
4770 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4771 user_reg_hint_type =
4772 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4774 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4776 switch (user_reg_hint_type) {
4777 case NL80211_USER_REG_HINT_USER:
4778 case NL80211_USER_REG_HINT_CELL_BASE:
4779 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4782 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4783 return regulatory_hint_user(data, user_reg_hint_type);
4784 case NL80211_USER_REG_HINT_INDOOR:
4785 return regulatory_hint_indoor_user();
4791 static int nl80211_get_mesh_config(struct sk_buff *skb,
4792 struct genl_info *info)
4794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4795 struct net_device *dev = info->user_ptr[1];
4796 struct wireless_dev *wdev = dev->ieee80211_ptr;
4797 struct mesh_config cur_params;
4800 struct nlattr *pinfoattr;
4801 struct sk_buff *msg;
4803 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
4806 if (!rdev->ops->get_mesh_config)
4810 /* If not connected, get default parameters */
4811 if (!wdev->mesh_id_len)
4812 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
4814 err = rdev_get_mesh_config(rdev, dev, &cur_params);
4820 /* Draw up a netlink message to send back */
4821 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4824 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
4825 NL80211_CMD_GET_MESH_CONFIG);
4828 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
4830 goto nla_put_failure;
4831 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4832 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
4833 cur_params.dot11MeshRetryTimeout) ||
4834 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4835 cur_params.dot11MeshConfirmTimeout) ||
4836 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
4837 cur_params.dot11MeshHoldingTimeout) ||
4838 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
4839 cur_params.dot11MeshMaxPeerLinks) ||
4840 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
4841 cur_params.dot11MeshMaxRetries) ||
4842 nla_put_u8(msg, NL80211_MESHCONF_TTL,
4843 cur_params.dot11MeshTTL) ||
4844 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
4845 cur_params.element_ttl) ||
4846 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4847 cur_params.auto_open_plinks) ||
4848 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
4849 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
4850 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
4851 cur_params.dot11MeshHWMPmaxPREQretries) ||
4852 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
4853 cur_params.path_refresh_time) ||
4854 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
4855 cur_params.min_discovery_timeout) ||
4856 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
4857 cur_params.dot11MeshHWMPactivePathTimeout) ||
4858 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
4859 cur_params.dot11MeshHWMPpreqMinInterval) ||
4860 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
4861 cur_params.dot11MeshHWMPperrMinInterval) ||
4862 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
4863 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
4864 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
4865 cur_params.dot11MeshHWMPRootMode) ||
4866 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
4867 cur_params.dot11MeshHWMPRannInterval) ||
4868 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
4869 cur_params.dot11MeshGateAnnouncementProtocol) ||
4870 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
4871 cur_params.dot11MeshForwarding) ||
4872 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
4873 cur_params.rssi_threshold) ||
4874 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
4875 cur_params.ht_opmode) ||
4876 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
4877 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
4878 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
4879 cur_params.dot11MeshHWMProotInterval) ||
4880 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
4881 cur_params.dot11MeshHWMPconfirmationInterval) ||
4882 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
4883 cur_params.power_mode) ||
4884 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
4885 cur_params.dot11MeshAwakeWindowDuration) ||
4886 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
4887 cur_params.plink_timeout))
4888 goto nla_put_failure;
4889 nla_nest_end(msg, pinfoattr);
4890 genlmsg_end(msg, hdr);
4891 return genlmsg_reply(msg, info);
4894 genlmsg_cancel(msg, hdr);
4900 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
4901 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
4902 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
4903 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
4904 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
4905 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
4906 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
4907 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
4908 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
4909 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
4910 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
4911 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
4912 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
4913 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
4914 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
4915 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
4916 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
4917 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
4918 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
4919 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
4920 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
4921 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
4922 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
4923 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
4924 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
4925 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
4926 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
4927 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
4928 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
4931 static const struct nla_policy
4932 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
4933 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
4934 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
4935 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
4936 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
4937 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
4938 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
4939 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
4940 .len = IEEE80211_MAX_DATA_LEN },
4941 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
4944 static int nl80211_parse_mesh_config(struct genl_info *info,
4945 struct mesh_config *cfg,
4948 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
4951 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
4954 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
4956 cfg->param = fn(tb[attr]); \
4957 mask |= (1 << (attr - 1)); \
4962 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
4964 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
4965 info->attrs[NL80211_ATTR_MESH_CONFIG],
4966 nl80211_meshconf_params_policy))
4969 /* This makes sure that there aren't more than 32 mesh config
4970 * parameters (otherwise our bitfield scheme would not work.) */
4971 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
4973 /* Fill in the params struct */
4974 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
4975 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
4977 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
4978 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
4980 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
4981 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
4983 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
4984 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
4986 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
4987 mask, NL80211_MESHCONF_MAX_RETRIES,
4989 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
4990 mask, NL80211_MESHCONF_TTL, nla_get_u8);
4991 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
4992 mask, NL80211_MESHCONF_ELEMENT_TTL,
4994 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
4995 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
4997 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
4999 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5001 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5002 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5004 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5005 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5007 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5008 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5010 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5012 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5014 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5016 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5018 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5020 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5022 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5023 dot11MeshHWMPnetDiameterTraversalTime,
5025 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5027 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5028 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5030 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5031 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5033 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5034 dot11MeshGateAnnouncementProtocol, 0, 1,
5035 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5037 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5038 mask, NL80211_MESHCONF_FORWARDING,
5040 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5041 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5043 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5044 mask, NL80211_MESHCONF_HT_OPMODE,
5046 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5048 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5050 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5051 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5053 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5054 dot11MeshHWMPconfirmationInterval,
5056 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5058 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5059 NL80211_MESH_POWER_ACTIVE,
5060 NL80211_MESH_POWER_MAX,
5061 mask, NL80211_MESHCONF_POWER_MODE,
5063 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5065 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5066 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 1, 0xffffffff,
5067 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5074 #undef FILL_IN_MESH_PARAM_IF_SET
5077 static int nl80211_parse_mesh_setup(struct genl_info *info,
5078 struct mesh_setup *setup)
5080 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5081 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5083 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5085 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5086 info->attrs[NL80211_ATTR_MESH_SETUP],
5087 nl80211_mesh_setup_params_policy))
5090 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5091 setup->sync_method =
5092 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5093 IEEE80211_SYNC_METHOD_VENDOR :
5094 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5096 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5097 setup->path_sel_proto =
5098 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5099 IEEE80211_PATH_PROTOCOL_VENDOR :
5100 IEEE80211_PATH_PROTOCOL_HWMP;
5102 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5103 setup->path_metric =
5104 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5105 IEEE80211_PATH_METRIC_VENDOR :
5106 IEEE80211_PATH_METRIC_AIRTIME;
5109 if (tb[NL80211_MESH_SETUP_IE]) {
5110 struct nlattr *ieattr =
5111 tb[NL80211_MESH_SETUP_IE];
5112 if (!is_valid_ie_attr(ieattr))
5114 setup->ie = nla_data(ieattr);
5115 setup->ie_len = nla_len(ieattr);
5117 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5118 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5120 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5121 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5122 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5123 if (setup->is_secure)
5124 setup->user_mpm = true;
5126 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5127 if (!setup->user_mpm)
5130 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5136 static int nl80211_update_mesh_config(struct sk_buff *skb,
5137 struct genl_info *info)
5139 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5140 struct net_device *dev = info->user_ptr[1];
5141 struct wireless_dev *wdev = dev->ieee80211_ptr;
5142 struct mesh_config cfg;
5146 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5149 if (!rdev->ops->update_mesh_config)
5152 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5157 if (!wdev->mesh_id_len)
5161 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5168 static int nl80211_get_reg(struct sk_buff *skb, struct genl_info *info)
5170 const struct ieee80211_regdomain *regdom;
5171 struct sk_buff *msg;
5173 struct nlattr *nl_reg_rules;
5176 if (!cfg80211_regdomain)
5179 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5183 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5184 NL80211_CMD_GET_REG);
5188 if (reg_last_request_cell_base() &&
5189 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5190 NL80211_USER_REG_HINT_CELL_BASE))
5191 goto nla_put_failure;
5194 regdom = rcu_dereference(cfg80211_regdomain);
5196 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5197 (regdom->dfs_region &&
5198 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5199 goto nla_put_failure_rcu;
5201 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5203 goto nla_put_failure_rcu;
5205 for (i = 0; i < regdom->n_reg_rules; i++) {
5206 struct nlattr *nl_reg_rule;
5207 const struct ieee80211_reg_rule *reg_rule;
5208 const struct ieee80211_freq_range *freq_range;
5209 const struct ieee80211_power_rule *power_rule;
5210 unsigned int max_bandwidth_khz;
5212 reg_rule = ®dom->reg_rules[i];
5213 freq_range = ®_rule->freq_range;
5214 power_rule = ®_rule->power_rule;
5216 nl_reg_rule = nla_nest_start(msg, i);
5218 goto nla_put_failure_rcu;
5220 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5221 if (!max_bandwidth_khz)
5222 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5225 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5227 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5228 freq_range->start_freq_khz) ||
5229 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5230 freq_range->end_freq_khz) ||
5231 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5232 max_bandwidth_khz) ||
5233 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5234 power_rule->max_antenna_gain) ||
5235 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5236 power_rule->max_eirp) ||
5237 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5238 reg_rule->dfs_cac_ms))
5239 goto nla_put_failure_rcu;
5241 nla_nest_end(msg, nl_reg_rule);
5245 nla_nest_end(msg, nl_reg_rules);
5247 genlmsg_end(msg, hdr);
5248 return genlmsg_reply(msg, info);
5250 nla_put_failure_rcu:
5253 genlmsg_cancel(msg, hdr);
5259 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5261 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5262 struct nlattr *nl_reg_rule;
5263 char *alpha2 = NULL;
5264 int rem_reg_rules = 0, r = 0;
5265 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5266 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5267 struct ieee80211_regdomain *rd = NULL;
5269 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5272 if (!info->attrs[NL80211_ATTR_REG_RULES])
5275 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5277 if (info->attrs[NL80211_ATTR_DFS_REGION])
5278 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5280 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5283 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5287 if (!reg_is_valid_request(alpha2))
5290 size_of_regd = sizeof(struct ieee80211_regdomain) +
5291 num_rules * sizeof(struct ieee80211_reg_rule);
5293 rd = kzalloc(size_of_regd, GFP_KERNEL);
5297 rd->n_reg_rules = num_rules;
5298 rd->alpha2[0] = alpha2[0];
5299 rd->alpha2[1] = alpha2[1];
5302 * Disable DFS master mode if the DFS region was
5303 * not supported or known on this kernel.
5305 if (reg_supported_dfs_region(dfs_region))
5306 rd->dfs_region = dfs_region;
5308 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5310 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5311 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5315 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5321 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5328 /* set_regdom took ownership */
5336 static int validate_scan_freqs(struct nlattr *freqs)
5338 struct nlattr *attr1, *attr2;
5339 int n_channels = 0, tmp1, tmp2;
5341 nla_for_each_nested(attr1, freqs, tmp1) {
5344 * Some hardware has a limited channel list for
5345 * scanning, and it is pretty much nonsensical
5346 * to scan for a channel twice, so disallow that
5347 * and don't require drivers to check that the
5348 * channel list they get isn't longer than what
5349 * they can scan, as long as they can scan all
5350 * the channels they registered at once.
5352 nla_for_each_nested(attr2, freqs, tmp2)
5353 if (attr1 != attr2 &&
5354 nla_get_u32(attr1) == nla_get_u32(attr2))
5361 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5363 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5364 struct wireless_dev *wdev = info->user_ptr[1];
5365 struct cfg80211_scan_request *request;
5366 struct nlattr *attr;
5367 struct wiphy *wiphy;
5368 int err, tmp, n_ssids = 0, n_channels, i;
5371 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5374 wiphy = &rdev->wiphy;
5376 if (!rdev->ops->scan)
5379 if (rdev->scan_req || rdev->scan_msg) {
5384 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5385 n_channels = validate_scan_freqs(
5386 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5392 n_channels = ieee80211_get_num_supported_channels(wiphy);
5395 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5396 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5399 if (n_ssids > wiphy->max_scan_ssids) {
5404 if (info->attrs[NL80211_ATTR_IE])
5405 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5409 if (ie_len > wiphy->max_scan_ie_len) {
5414 request = kzalloc(sizeof(*request)
5415 + sizeof(*request->ssids) * n_ssids
5416 + sizeof(*request->channels) * n_channels
5417 + ie_len, GFP_KERNEL);
5424 request->ssids = (void *)&request->channels[n_channels];
5425 request->n_ssids = n_ssids;
5428 request->ie = (void *)(request->ssids + n_ssids);
5430 request->ie = (void *)(request->channels + n_channels);
5434 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5435 /* user specified, bail out if channel not found */
5436 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5437 struct ieee80211_channel *chan;
5439 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5446 /* ignore disabled channels */
5447 if (chan->flags & IEEE80211_CHAN_DISABLED)
5450 request->channels[i] = chan;
5454 enum ieee80211_band band;
5457 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5459 if (!wiphy->bands[band])
5461 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5462 struct ieee80211_channel *chan;
5464 chan = &wiphy->bands[band]->channels[j];
5466 if (chan->flags & IEEE80211_CHAN_DISABLED)
5469 request->channels[i] = chan;
5480 request->n_channels = i;
5483 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5484 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5485 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5489 request->ssids[i].ssid_len = nla_len(attr);
5490 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5495 if (info->attrs[NL80211_ATTR_IE]) {
5496 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5497 memcpy((void *)request->ie,
5498 nla_data(info->attrs[NL80211_ATTR_IE]),
5502 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5503 if (wiphy->bands[i])
5505 (1 << wiphy->bands[i]->n_bitrates) - 1;
5507 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5508 nla_for_each_nested(attr,
5509 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5511 enum ieee80211_band band = nla_type(attr);
5513 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5518 if (!wiphy->bands[band])
5521 err = ieee80211_get_ratemask(wiphy->bands[band],
5524 &request->rates[band]);
5530 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5531 request->flags = nla_get_u32(
5532 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5533 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5534 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5541 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5543 request->wdev = wdev;
5544 request->wiphy = &rdev->wiphy;
5545 request->scan_start = jiffies;
5547 rdev->scan_req = request;
5548 err = rdev_scan(rdev, request);
5551 nl80211_send_scan_start(rdev, wdev);
5553 dev_hold(wdev->netdev);
5556 rdev->scan_req = NULL;
5564 static int nl80211_start_sched_scan(struct sk_buff *skb,
5565 struct genl_info *info)
5567 struct cfg80211_sched_scan_request *request;
5568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5569 struct net_device *dev = info->user_ptr[1];
5570 struct nlattr *attr;
5571 struct wiphy *wiphy;
5572 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5574 enum ieee80211_band band;
5576 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5577 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5579 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5580 !rdev->ops->sched_scan_start)
5583 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5586 if (!info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5589 interval = nla_get_u32(info->attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5593 wiphy = &rdev->wiphy;
5595 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5596 n_channels = validate_scan_freqs(
5597 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5601 n_channels = ieee80211_get_num_supported_channels(wiphy);
5604 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5605 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5609 if (n_ssids > wiphy->max_sched_scan_ssids)
5613 * First, count the number of 'real' matchsets. Due to an issue with
5614 * the old implementation, matchsets containing only the RSSI attribute
5615 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
5616 * RSSI for all matchsets, rather than their own matchset for reporting
5617 * all APs with a strong RSSI. This is needed to be compatible with
5618 * older userspace that treated a matchset with only the RSSI as the
5619 * global RSSI for all other matchsets - if there are other matchsets.
5621 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5622 nla_for_each_nested(attr,
5623 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5625 struct nlattr *rssi;
5627 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5628 nla_data(attr), nla_len(attr),
5629 nl80211_match_policy);
5632 /* add other standalone attributes here */
5633 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
5637 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5639 default_match_rssi = nla_get_s32(rssi);
5643 /* However, if there's no other matchset, add the RSSI one */
5644 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
5647 if (n_match_sets > wiphy->max_match_sets)
5650 if (info->attrs[NL80211_ATTR_IE])
5651 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5655 if (ie_len > wiphy->max_sched_scan_ie_len)
5658 if (rdev->sched_scan_req) {
5663 request = kzalloc(sizeof(*request)
5664 + sizeof(*request->ssids) * n_ssids
5665 + sizeof(*request->match_sets) * n_match_sets
5666 + sizeof(*request->channels) * n_channels
5667 + ie_len, GFP_KERNEL);
5674 request->ssids = (void *)&request->channels[n_channels];
5675 request->n_ssids = n_ssids;
5678 request->ie = (void *)(request->ssids + n_ssids);
5680 request->ie = (void *)(request->channels + n_channels);
5685 request->match_sets = (void *)(request->ie + ie_len);
5686 else if (request->ssids)
5687 request->match_sets =
5688 (void *)(request->ssids + n_ssids);
5690 request->match_sets =
5691 (void *)(request->channels + n_channels);
5693 request->n_match_sets = n_match_sets;
5696 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5697 /* user specified, bail out if channel not found */
5698 nla_for_each_nested(attr,
5699 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES],
5701 struct ieee80211_channel *chan;
5703 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5710 /* ignore disabled channels */
5711 if (chan->flags & IEEE80211_CHAN_DISABLED)
5714 request->channels[i] = chan;
5719 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5721 if (!wiphy->bands[band])
5723 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5724 struct ieee80211_channel *chan;
5726 chan = &wiphy->bands[band]->channels[j];
5728 if (chan->flags & IEEE80211_CHAN_DISABLED)
5731 request->channels[i] = chan;
5742 request->n_channels = i;
5745 if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) {
5746 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS],
5748 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5752 request->ssids[i].ssid_len = nla_len(attr);
5753 memcpy(request->ssids[i].ssid, nla_data(attr),
5760 if (info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
5761 nla_for_each_nested(attr,
5762 info->attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
5764 struct nlattr *ssid, *rssi;
5766 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
5767 nla_data(attr), nla_len(attr),
5768 nl80211_match_policy);
5771 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
5773 if (WARN_ON(i >= n_match_sets)) {
5774 /* this indicates a programming error,
5775 * the loop above should have verified
5782 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
5786 memcpy(request->match_sets[i].ssid.ssid,
5787 nla_data(ssid), nla_len(ssid));
5788 request->match_sets[i].ssid.ssid_len =
5790 /* special attribute - old implemenation w/a */
5791 request->match_sets[i].rssi_thold =
5793 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
5795 request->match_sets[i].rssi_thold =
5801 /* there was no other matchset, so the RSSI one is alone */
5803 request->match_sets[0].rssi_thold = default_match_rssi;
5805 request->min_rssi_thold = INT_MAX;
5806 for (i = 0; i < n_match_sets; i++)
5807 request->min_rssi_thold =
5808 min(request->match_sets[i].rssi_thold,
5809 request->min_rssi_thold);
5811 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
5815 request->ie_len = ie_len;
5816 memcpy((void *)request->ie,
5817 nla_data(info->attrs[NL80211_ATTR_IE]),
5821 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5822 request->flags = nla_get_u32(
5823 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5824 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5825 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5832 request->wiphy = &rdev->wiphy;
5833 request->interval = interval;
5834 request->scan_start = jiffies;
5836 err = rdev_sched_scan_start(rdev, dev, request);
5838 rdev->sched_scan_req = request;
5839 nl80211_send_sched_scan(rdev, dev,
5840 NL80211_CMD_START_SCHED_SCAN);
5850 static int nl80211_stop_sched_scan(struct sk_buff *skb,
5851 struct genl_info *info)
5853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5855 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
5856 !rdev->ops->sched_scan_stop)
5859 return __cfg80211_stop_sched_scan(rdev, false);
5862 static int nl80211_start_radar_detection(struct sk_buff *skb,
5863 struct genl_info *info)
5865 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5866 struct net_device *dev = info->user_ptr[1];
5867 struct wireless_dev *wdev = dev->ieee80211_ptr;
5868 struct cfg80211_chan_def chandef;
5869 enum nl80211_dfs_regions dfs_region;
5870 unsigned int cac_time_ms;
5873 dfs_region = reg_get_dfs_region(wdev->wiphy);
5874 if (dfs_region == NL80211_DFS_UNSET)
5877 err = nl80211_parse_chandef(rdev, info, &chandef);
5881 if (netif_carrier_ok(dev))
5884 if (wdev->cac_started)
5887 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
5895 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
5898 if (!rdev->ops->start_radar_detection)
5901 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
5902 if (WARN_ON(!cac_time_ms))
5903 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
5905 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
5908 wdev->chandef = chandef;
5909 wdev->cac_started = true;
5910 wdev->cac_start_time = jiffies;
5911 wdev->cac_time_ms = cac_time_ms;
5916 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
5918 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5919 struct net_device *dev = info->user_ptr[1];
5920 struct wireless_dev *wdev = dev->ieee80211_ptr;
5921 struct cfg80211_csa_settings params;
5922 /* csa_attrs is defined static to avoid waste of stack size - this
5923 * function is called under RTNL lock, so this should not be a problem.
5925 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
5926 u8 radar_detect_width = 0;
5928 bool need_new_beacon = false;
5931 if (!rdev->ops->channel_switch ||
5932 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
5935 switch (dev->ieee80211_ptr->iftype) {
5936 case NL80211_IFTYPE_AP:
5937 case NL80211_IFTYPE_P2P_GO:
5938 need_new_beacon = true;
5940 /* useless if AP is not running */
5941 if (!wdev->beacon_interval)
5944 case NL80211_IFTYPE_ADHOC:
5945 if (!wdev->ssid_len)
5948 case NL80211_IFTYPE_MESH_POINT:
5949 if (!wdev->mesh_id_len)
5956 memset(¶ms, 0, sizeof(params));
5958 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
5959 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
5962 /* only important for AP, IBSS and mesh create IEs internally */
5963 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
5966 params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
5968 if (!need_new_beacon)
5971 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
5975 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
5976 info->attrs[NL80211_ATTR_CSA_IES],
5981 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
5985 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
5988 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
5989 if (!len || (len % sizeof(u16)))
5992 params.n_counter_offsets_beacon = len / sizeof(u16);
5993 if (rdev->wiphy.max_num_csa_counters &&
5994 (params.n_counter_offsets_beacon >
5995 rdev->wiphy.max_num_csa_counters))
5998 params.counter_offsets_beacon =
5999 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6001 /* sanity checks - counters should fit and be the same */
6002 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6003 u16 offset = params.counter_offsets_beacon[i];
6005 if (offset >= params.beacon_csa.tail_len)
6008 if (params.beacon_csa.tail[offset] != params.count)
6012 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6013 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6014 if (!len || (len % sizeof(u16)))
6017 params.n_counter_offsets_presp = len / sizeof(u16);
6018 if (rdev->wiphy.max_num_csa_counters &&
6019 (params.n_counter_offsets_beacon >
6020 rdev->wiphy.max_num_csa_counters))
6023 params.counter_offsets_presp =
6024 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6026 /* sanity checks - counters should fit and be the same */
6027 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6028 u16 offset = params.counter_offsets_presp[i];
6030 if (offset >= params.beacon_csa.probe_resp_len)
6033 if (params.beacon_csa.probe_resp[offset] !=
6040 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6044 if (!cfg80211_reg_can_beacon(&rdev->wiphy, ¶ms.chandef,
6048 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6055 radar_detect_width = BIT(params.chandef.width);
6056 params.radar_required = true;
6059 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6060 params.block_tx = true;
6063 err = rdev_channel_switch(rdev, dev, ¶ms);
6069 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6071 struct cfg80211_registered_device *rdev,
6072 struct wireless_dev *wdev,
6073 struct cfg80211_internal_bss *intbss)
6075 struct cfg80211_bss *res = &intbss->pub;
6076 const struct cfg80211_bss_ies *ies;
6080 ASSERT_WDEV_LOCK(wdev);
6082 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6083 NL80211_CMD_NEW_SCAN_RESULTS);
6087 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6089 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6090 goto nla_put_failure;
6092 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6093 goto nla_put_failure;
6094 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6095 goto nla_put_failure;
6097 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6099 goto nla_put_failure;
6100 if ((!is_zero_ether_addr(res->bssid) &&
6101 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6102 goto nla_put_failure;
6105 /* indicate whether we have probe response data or not */
6106 if (rcu_access_pointer(res->proberesp_ies) &&
6107 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6108 goto fail_unlock_rcu;
6110 /* this pointer prefers to be pointed to probe response data
6111 * but is always valid
6113 ies = rcu_dereference(res->ies);
6115 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6116 goto fail_unlock_rcu;
6117 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6118 ies->len, ies->data))
6119 goto fail_unlock_rcu;
6122 /* and this pointer is always (unless driver didn't know) beacon data */
6123 ies = rcu_dereference(res->beacon_ies);
6124 if (ies && ies->from_beacon) {
6125 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6126 goto fail_unlock_rcu;
6127 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6128 ies->len, ies->data))
6129 goto fail_unlock_rcu;
6133 if (res->beacon_interval &&
6134 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6135 goto nla_put_failure;
6136 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6137 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6138 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6139 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6140 jiffies_to_msecs(jiffies - intbss->ts)))
6141 goto nla_put_failure;
6143 switch (rdev->wiphy.signal_type) {
6144 case CFG80211_SIGNAL_TYPE_MBM:
6145 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6146 goto nla_put_failure;
6148 case CFG80211_SIGNAL_TYPE_UNSPEC:
6149 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6150 goto nla_put_failure;
6156 switch (wdev->iftype) {
6157 case NL80211_IFTYPE_P2P_CLIENT:
6158 case NL80211_IFTYPE_STATION:
6159 if (intbss == wdev->current_bss &&
6160 nla_put_u32(msg, NL80211_BSS_STATUS,
6161 NL80211_BSS_STATUS_ASSOCIATED))
6162 goto nla_put_failure;
6164 case NL80211_IFTYPE_ADHOC:
6165 if (intbss == wdev->current_bss &&
6166 nla_put_u32(msg, NL80211_BSS_STATUS,
6167 NL80211_BSS_STATUS_IBSS_JOINED))
6168 goto nla_put_failure;
6174 nla_nest_end(msg, bss);
6176 return genlmsg_end(msg, hdr);
6181 genlmsg_cancel(msg, hdr);
6185 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6187 struct cfg80211_registered_device *rdev;
6188 struct cfg80211_internal_bss *scan;
6189 struct wireless_dev *wdev;
6190 int start = cb->args[2], idx = 0;
6193 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6198 spin_lock_bh(&rdev->bss_lock);
6199 cfg80211_bss_expire(rdev);
6201 cb->seq = rdev->bss_generation;
6203 list_for_each_entry(scan, &rdev->bss_list, list) {
6206 if (nl80211_send_bss(skb, cb,
6207 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6208 rdev, wdev, scan) < 0) {
6214 spin_unlock_bh(&rdev->bss_lock);
6218 nl80211_finish_wdev_dump(rdev);
6223 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6224 int flags, struct net_device *dev,
6225 struct survey_info *survey)
6228 struct nlattr *infoattr;
6230 hdr = nl80211hdr_put(msg, portid, seq, flags,
6231 NL80211_CMD_NEW_SURVEY_RESULTS);
6235 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6236 goto nla_put_failure;
6238 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6240 goto nla_put_failure;
6242 if (nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6243 survey->channel->center_freq))
6244 goto nla_put_failure;
6246 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6247 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6248 goto nla_put_failure;
6249 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6250 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6251 goto nla_put_failure;
6252 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME) &&
6253 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME,
6254 survey->channel_time))
6255 goto nla_put_failure;
6256 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_BUSY) &&
6257 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_BUSY,
6258 survey->channel_time_busy))
6259 goto nla_put_failure;
6260 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) &&
6261 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_EXT_BUSY,
6262 survey->channel_time_ext_busy))
6263 goto nla_put_failure;
6264 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_RX) &&
6265 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_RX,
6266 survey->channel_time_rx))
6267 goto nla_put_failure;
6268 if ((survey->filled & SURVEY_INFO_CHANNEL_TIME_TX) &&
6269 nla_put_u64(msg, NL80211_SURVEY_INFO_CHANNEL_TIME_TX,
6270 survey->channel_time_tx))
6271 goto nla_put_failure;
6273 nla_nest_end(msg, infoattr);
6275 return genlmsg_end(msg, hdr);
6278 genlmsg_cancel(msg, hdr);
6282 static int nl80211_dump_survey(struct sk_buff *skb,
6283 struct netlink_callback *cb)
6285 struct survey_info survey;
6286 struct cfg80211_registered_device *rdev;
6287 struct wireless_dev *wdev;
6288 int survey_idx = cb->args[2];
6291 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6295 if (!wdev->netdev) {
6300 if (!rdev->ops->dump_survey) {
6306 struct ieee80211_channel *chan;
6308 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6314 /* Survey without a channel doesn't make sense */
6315 if (!survey.channel) {
6320 chan = ieee80211_get_channel(&rdev->wiphy,
6321 survey.channel->center_freq);
6322 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED) {
6327 if (nl80211_send_survey(skb,
6328 NETLINK_CB(cb->skb).portid,
6329 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6330 wdev->netdev, &survey) < 0)
6336 cb->args[2] = survey_idx;
6339 nl80211_finish_wdev_dump(rdev);
6343 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6345 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6346 NL80211_WPA_VERSION_2));
6349 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6352 struct net_device *dev = info->user_ptr[1];
6353 struct ieee80211_channel *chan;
6354 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6355 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6356 enum nl80211_auth_type auth_type;
6357 struct key_parse key;
6358 bool local_state_change;
6360 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6363 if (!info->attrs[NL80211_ATTR_MAC])
6366 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6369 if (!info->attrs[NL80211_ATTR_SSID])
6372 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6375 err = nl80211_parse_key(info, &key);
6380 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6382 if (!key.p.key || !key.p.key_len)
6384 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6385 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6386 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6387 key.p.key_len != WLAN_KEY_LEN_WEP104))
6399 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6400 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6409 if (!rdev->ops->auth)
6412 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6413 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6416 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6417 chan = nl80211_get_valid_chan(&rdev->wiphy,
6418 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6422 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6423 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6425 if (info->attrs[NL80211_ATTR_IE]) {
6426 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6427 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6430 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6431 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6434 if (auth_type == NL80211_AUTHTYPE_SAE &&
6435 !info->attrs[NL80211_ATTR_SAE_DATA])
6438 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6439 if (auth_type != NL80211_AUTHTYPE_SAE)
6441 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6442 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6443 /* need to include at least Auth Transaction and Status Code */
6444 if (sae_data_len < 4)
6448 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6451 * Since we no longer track auth state, ignore
6452 * requests to only change local state.
6454 if (local_state_change)
6457 wdev_lock(dev->ieee80211_ptr);
6458 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6459 ssid, ssid_len, ie, ie_len,
6460 key.p.key, key.p.key_len, key.idx,
6461 sae_data, sae_data_len);
6462 wdev_unlock(dev->ieee80211_ptr);
6466 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6467 struct genl_info *info,
6468 struct cfg80211_crypto_settings *settings,
6471 memset(settings, 0, sizeof(*settings));
6473 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6475 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6477 proto = nla_get_u16(
6478 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6479 settings->control_port_ethertype = cpu_to_be16(proto);
6480 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6483 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6484 settings->control_port_no_encrypt = true;
6486 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6488 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6492 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6493 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6494 settings->n_ciphers_pairwise = len / sizeof(u32);
6496 if (len % sizeof(u32))
6499 if (settings->n_ciphers_pairwise > cipher_limit)
6502 memcpy(settings->ciphers_pairwise, data, len);
6504 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6505 if (!cfg80211_supported_cipher_suite(
6507 settings->ciphers_pairwise[i]))
6511 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6512 settings->cipher_group =
6513 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6514 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6515 settings->cipher_group))
6519 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6520 settings->wpa_versions =
6521 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6522 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6526 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6530 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6531 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6532 settings->n_akm_suites = len / sizeof(u32);
6534 if (len % sizeof(u32))
6537 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6540 memcpy(settings->akm_suites, data, len);
6546 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
6548 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6549 struct net_device *dev = info->user_ptr[1];
6550 struct ieee80211_channel *chan;
6551 struct cfg80211_assoc_request req = {};
6552 const u8 *bssid, *ssid;
6553 int err, ssid_len = 0;
6555 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6558 if (!info->attrs[NL80211_ATTR_MAC] ||
6559 !info->attrs[NL80211_ATTR_SSID] ||
6560 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
6563 if (!rdev->ops->assoc)
6566 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6567 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6570 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6572 chan = nl80211_get_valid_chan(&rdev->wiphy,
6573 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6577 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6578 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6580 if (info->attrs[NL80211_ATTR_IE]) {
6581 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6582 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6585 if (info->attrs[NL80211_ATTR_USE_MFP]) {
6586 enum nl80211_mfp mfp =
6587 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
6588 if (mfp == NL80211_MFP_REQUIRED)
6590 else if (mfp != NL80211_MFP_NO)
6594 if (info->attrs[NL80211_ATTR_PREV_BSSID])
6595 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
6597 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
6598 req.flags |= ASSOC_REQ_DISABLE_HT;
6600 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6601 memcpy(&req.ht_capa_mask,
6602 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6603 sizeof(req.ht_capa_mask));
6605 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6606 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6608 memcpy(&req.ht_capa,
6609 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6610 sizeof(req.ht_capa));
6613 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
6614 req.flags |= ASSOC_REQ_DISABLE_VHT;
6616 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6617 memcpy(&req.vht_capa_mask,
6618 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
6619 sizeof(req.vht_capa_mask));
6621 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
6622 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
6624 memcpy(&req.vht_capa,
6625 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
6626 sizeof(req.vht_capa));
6629 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
6630 if (!(rdev->wiphy.features &
6631 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
6632 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
6634 req.flags |= ASSOC_REQ_USE_RRM;
6637 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
6639 wdev_lock(dev->ieee80211_ptr);
6640 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
6641 ssid, ssid_len, &req);
6642 wdev_unlock(dev->ieee80211_ptr);
6648 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
6650 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6651 struct net_device *dev = info->user_ptr[1];
6652 const u8 *ie = NULL, *bssid;
6653 int ie_len = 0, err;
6655 bool local_state_change;
6657 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6660 if (!info->attrs[NL80211_ATTR_MAC])
6663 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6666 if (!rdev->ops->deauth)
6669 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6670 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6673 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6675 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6676 if (reason_code == 0) {
6677 /* Reason Code 0 is reserved */
6681 if (info->attrs[NL80211_ATTR_IE]) {
6682 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6683 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6686 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6688 wdev_lock(dev->ieee80211_ptr);
6689 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
6690 local_state_change);
6691 wdev_unlock(dev->ieee80211_ptr);
6695 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
6697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6698 struct net_device *dev = info->user_ptr[1];
6699 const u8 *ie = NULL, *bssid;
6700 int ie_len = 0, err;
6702 bool local_state_change;
6704 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6707 if (!info->attrs[NL80211_ATTR_MAC])
6710 if (!info->attrs[NL80211_ATTR_REASON_CODE])
6713 if (!rdev->ops->disassoc)
6716 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6717 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6720 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6722 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
6723 if (reason_code == 0) {
6724 /* Reason Code 0 is reserved */
6728 if (info->attrs[NL80211_ATTR_IE]) {
6729 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6730 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6733 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6735 wdev_lock(dev->ieee80211_ptr);
6736 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
6737 local_state_change);
6738 wdev_unlock(dev->ieee80211_ptr);
6743 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
6744 int mcast_rate[IEEE80211_NUM_BANDS],
6747 struct wiphy *wiphy = &rdev->wiphy;
6751 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6752 struct ieee80211_supported_band *sband;
6754 sband = wiphy->bands[band];
6758 for (i = 0; i < sband->n_bitrates; i++) {
6759 if (sband->bitrates[i].bitrate == rateval) {
6760 mcast_rate[band] = i + 1;
6770 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
6772 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6773 struct net_device *dev = info->user_ptr[1];
6774 struct cfg80211_ibss_params ibss;
6775 struct wiphy *wiphy;
6776 struct cfg80211_cached_keys *connkeys = NULL;
6779 memset(&ibss, 0, sizeof(ibss));
6781 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6784 if (!info->attrs[NL80211_ATTR_SSID] ||
6785 !nla_len(info->attrs[NL80211_ATTR_SSID]))
6788 ibss.beacon_interval = 100;
6790 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
6791 ibss.beacon_interval =
6792 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
6793 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
6797 if (!rdev->ops->join_ibss)
6800 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6803 wiphy = &rdev->wiphy;
6805 if (info->attrs[NL80211_ATTR_MAC]) {
6806 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6808 if (!is_valid_ether_addr(ibss.bssid))
6811 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6812 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6814 if (info->attrs[NL80211_ATTR_IE]) {
6815 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6816 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6819 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
6823 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
6824 NL80211_IFTYPE_ADHOC))
6827 switch (ibss.chandef.width) {
6828 case NL80211_CHAN_WIDTH_5:
6829 case NL80211_CHAN_WIDTH_10:
6830 case NL80211_CHAN_WIDTH_20_NOHT:
6832 case NL80211_CHAN_WIDTH_20:
6833 case NL80211_CHAN_WIDTH_40:
6834 if (rdev->wiphy.features & NL80211_FEATURE_HT_IBSS)
6840 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
6841 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
6843 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
6845 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6847 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
6848 struct ieee80211_supported_band *sband =
6849 wiphy->bands[ibss.chandef.chan->band];
6851 err = ieee80211_get_ratemask(sband, rates, n_rates,
6857 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6858 memcpy(&ibss.ht_capa_mask,
6859 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
6860 sizeof(ibss.ht_capa_mask));
6862 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
6863 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
6865 memcpy(&ibss.ht_capa,
6866 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
6867 sizeof(ibss.ht_capa));
6870 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
6871 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
6872 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
6875 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
6878 connkeys = nl80211_parse_connkeys(rdev,
6879 info->attrs[NL80211_ATTR_KEYS],
6881 if (IS_ERR(connkeys))
6882 return PTR_ERR(connkeys);
6884 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
6892 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
6894 ibss.userspace_handles_dfs =
6895 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
6897 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
6903 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
6905 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6906 struct net_device *dev = info->user_ptr[1];
6908 if (!rdev->ops->leave_ibss)
6911 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
6914 return cfg80211_leave_ibss(rdev, dev, false);
6917 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
6919 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6920 struct net_device *dev = info->user_ptr[1];
6921 int mcast_rate[IEEE80211_NUM_BANDS];
6925 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
6926 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
6929 if (!rdev->ops->set_mcast_rate)
6932 memset(mcast_rate, 0, sizeof(mcast_rate));
6934 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
6937 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
6938 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
6941 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
6946 static struct sk_buff *
6947 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
6948 int approxlen, u32 portid, u32 seq,
6949 enum nl80211_commands cmd,
6950 enum nl80211_attrs attr,
6951 const struct nl80211_vendor_cmd_info *info,
6954 struct sk_buff *skb;
6956 struct nlattr *data;
6958 skb = nlmsg_new(approxlen + 100, gfp);
6962 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
6968 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
6969 goto nla_put_failure;
6972 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
6974 goto nla_put_failure;
6975 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
6977 goto nla_put_failure;
6980 data = nla_nest_start(skb, attr);
6982 ((void **)skb->cb)[0] = rdev;
6983 ((void **)skb->cb)[1] = hdr;
6984 ((void **)skb->cb)[2] = data;
6993 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
6994 enum nl80211_commands cmd,
6995 enum nl80211_attrs attr,
6996 int vendor_event_idx,
6997 int approxlen, gfp_t gfp)
6999 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7000 const struct nl80211_vendor_cmd_info *info;
7003 case NL80211_CMD_TESTMODE:
7004 if (WARN_ON(vendor_event_idx != -1))
7008 case NL80211_CMD_VENDOR:
7009 if (WARN_ON(vendor_event_idx < 0 ||
7010 vendor_event_idx >= wiphy->n_vendor_events))
7012 info = &wiphy->vendor_events[vendor_event_idx];
7019 return __cfg80211_alloc_vendor_skb(rdev, approxlen, 0, 0,
7020 cmd, attr, info, gfp);
7022 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7024 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7026 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7027 void *hdr = ((void **)skb->cb)[1];
7028 struct nlattr *data = ((void **)skb->cb)[2];
7029 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7031 /* clear CB data for netlink core to own from now on */
7032 memset(skb->cb, 0, sizeof(skb->cb));
7034 nla_nest_end(skb, data);
7035 genlmsg_end(skb, hdr);
7037 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7038 mcgrp = NL80211_MCGRP_VENDOR;
7040 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7043 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7045 #ifdef CONFIG_NL80211_TESTMODE
7046 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7048 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7049 struct wireless_dev *wdev =
7050 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7053 if (!rdev->ops->testmode_cmd)
7057 err = PTR_ERR(wdev);
7061 } else if (wdev->wiphy != &rdev->wiphy) {
7065 if (!info->attrs[NL80211_ATTR_TESTDATA])
7068 rdev->cur_cmd_info = info;
7069 err = rdev_testmode_cmd(rdev, wdev,
7070 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7071 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7072 rdev->cur_cmd_info = NULL;
7077 static int nl80211_testmode_dump(struct sk_buff *skb,
7078 struct netlink_callback *cb)
7080 struct cfg80211_registered_device *rdev;
7090 * 0 is a valid index, but not valid for args[0],
7091 * so we need to offset by 1.
7093 phy_idx = cb->args[0] - 1;
7095 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7096 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7101 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7102 nl80211_fam.attrbuf);
7104 err = PTR_ERR(rdev);
7107 phy_idx = rdev->wiphy_idx;
7110 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7112 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7116 data = nla_data((void *)cb->args[1]);
7117 data_len = nla_len((void *)cb->args[1]);
7120 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7126 if (!rdev->ops->testmode_dump) {
7132 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7133 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7134 NL80211_CMD_TESTMODE);
7135 struct nlattr *tmdata;
7140 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7141 genlmsg_cancel(skb, hdr);
7145 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7147 genlmsg_cancel(skb, hdr);
7150 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7151 nla_nest_end(skb, tmdata);
7153 if (err == -ENOBUFS || err == -ENOENT) {
7154 genlmsg_cancel(skb, hdr);
7157 genlmsg_cancel(skb, hdr);
7161 genlmsg_end(skb, hdr);
7166 cb->args[0] = phy_idx + 1;
7173 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7176 struct net_device *dev = info->user_ptr[1];
7177 struct cfg80211_connect_params connect;
7178 struct wiphy *wiphy;
7179 struct cfg80211_cached_keys *connkeys = NULL;
7182 memset(&connect, 0, sizeof(connect));
7184 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7187 if (!info->attrs[NL80211_ATTR_SSID] ||
7188 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7191 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7193 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7194 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7195 NL80211_CMD_CONNECT))
7198 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7200 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7202 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7203 NL80211_MAX_NR_CIPHER_SUITES);
7207 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7208 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7211 wiphy = &rdev->wiphy;
7213 connect.bg_scan_period = -1;
7214 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7215 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7216 connect.bg_scan_period =
7217 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7220 if (info->attrs[NL80211_ATTR_MAC])
7221 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7222 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7223 connect.bssid_hint =
7224 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7225 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7226 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7228 if (info->attrs[NL80211_ATTR_IE]) {
7229 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7230 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7233 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7234 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7235 if (connect.mfp != NL80211_MFP_REQUIRED &&
7236 connect.mfp != NL80211_MFP_NO)
7239 connect.mfp = NL80211_MFP_NO;
7242 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7243 connect.channel = nl80211_get_valid_chan(
7244 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7245 if (!connect.channel)
7247 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7248 connect.channel_hint = nl80211_get_valid_chan(
7249 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7250 if (!connect.channel_hint)
7254 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7255 connkeys = nl80211_parse_connkeys(rdev,
7256 info->attrs[NL80211_ATTR_KEYS], NULL);
7257 if (IS_ERR(connkeys))
7258 return PTR_ERR(connkeys);
7261 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7262 connect.flags |= ASSOC_REQ_DISABLE_HT;
7264 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7265 memcpy(&connect.ht_capa_mask,
7266 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7267 sizeof(connect.ht_capa_mask));
7269 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7270 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7274 memcpy(&connect.ht_capa,
7275 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7276 sizeof(connect.ht_capa));
7279 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7280 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7282 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7283 memcpy(&connect.vht_capa_mask,
7284 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7285 sizeof(connect.vht_capa_mask));
7287 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7288 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7292 memcpy(&connect.vht_capa,
7293 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7294 sizeof(connect.vht_capa));
7297 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7298 if (!(rdev->wiphy.features &
7299 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7300 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7302 connect.flags |= ASSOC_REQ_USE_RRM;
7305 wdev_lock(dev->ieee80211_ptr);
7306 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7307 wdev_unlock(dev->ieee80211_ptr);
7313 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7315 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7316 struct net_device *dev = info->user_ptr[1];
7320 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7321 reason = WLAN_REASON_DEAUTH_LEAVING;
7323 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7328 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7329 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7332 wdev_lock(dev->ieee80211_ptr);
7333 ret = cfg80211_disconnect(rdev, dev, reason, true);
7334 wdev_unlock(dev->ieee80211_ptr);
7338 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7340 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7345 if (!info->attrs[NL80211_ATTR_PID])
7348 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7350 net = get_net_ns_by_pid(pid);
7352 return PTR_ERR(net);
7356 /* check if anything to do */
7357 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7358 err = cfg80211_switch_netns(rdev, net);
7364 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7366 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7367 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7368 struct cfg80211_pmksa *pmksa) = NULL;
7369 struct net_device *dev = info->user_ptr[1];
7370 struct cfg80211_pmksa pmksa;
7372 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7374 if (!info->attrs[NL80211_ATTR_MAC])
7377 if (!info->attrs[NL80211_ATTR_PMKID])
7380 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7381 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7383 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7384 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7387 switch (info->genlhdr->cmd) {
7388 case NL80211_CMD_SET_PMKSA:
7389 rdev_ops = rdev->ops->set_pmksa;
7391 case NL80211_CMD_DEL_PMKSA:
7392 rdev_ops = rdev->ops->del_pmksa;
7402 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7405 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7407 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7408 struct net_device *dev = info->user_ptr[1];
7410 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7411 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7414 if (!rdev->ops->flush_pmksa)
7417 return rdev_flush_pmksa(rdev, dev);
7420 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7422 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7423 struct net_device *dev = info->user_ptr[1];
7424 u8 action_code, dialog_token;
7425 u32 peer_capability = 0;
7430 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7431 !rdev->ops->tdls_mgmt)
7434 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7435 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7436 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7437 !info->attrs[NL80211_ATTR_IE] ||
7438 !info->attrs[NL80211_ATTR_MAC])
7441 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7442 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7443 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7444 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7445 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
7446 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7448 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7450 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7451 dialog_token, status_code, peer_capability,
7453 nla_data(info->attrs[NL80211_ATTR_IE]),
7454 nla_len(info->attrs[NL80211_ATTR_IE]));
7457 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7460 struct net_device *dev = info->user_ptr[1];
7461 enum nl80211_tdls_operation operation;
7464 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7465 !rdev->ops->tdls_oper)
7468 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7469 !info->attrs[NL80211_ATTR_MAC])
7472 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7473 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7475 return rdev_tdls_oper(rdev, dev, peer, operation);
7478 static int nl80211_remain_on_channel(struct sk_buff *skb,
7479 struct genl_info *info)
7481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7482 struct wireless_dev *wdev = info->user_ptr[1];
7483 struct cfg80211_chan_def chandef;
7484 struct sk_buff *msg;
7490 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7491 !info->attrs[NL80211_ATTR_DURATION])
7494 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7496 if (!rdev->ops->remain_on_channel ||
7497 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7501 * We should be on that channel for at least a minimum amount of
7502 * time (10ms) but no longer than the driver supports.
7504 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7505 duration > rdev->wiphy.max_remain_on_channel_duration)
7508 err = nl80211_parse_chandef(rdev, info, &chandef);
7512 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7516 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7517 NL80211_CMD_REMAIN_ON_CHANNEL);
7523 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
7529 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7530 goto nla_put_failure;
7532 genlmsg_end(msg, hdr);
7534 return genlmsg_reply(msg, info);
7543 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
7544 struct genl_info *info)
7546 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7547 struct wireless_dev *wdev = info->user_ptr[1];
7550 if (!info->attrs[NL80211_ATTR_COOKIE])
7553 if (!rdev->ops->cancel_remain_on_channel)
7556 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7558 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
7561 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
7562 u8 *rates, u8 rates_len)
7567 for (i = 0; i < rates_len; i++) {
7568 int rate = (rates[i] & 0x7f) * 5;
7570 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
7571 struct ieee80211_rate *srate =
7572 &sband->bitrates[ridx];
7573 if (rate == srate->bitrate) {
7578 if (ridx == sband->n_bitrates)
7579 return 0; /* rate not found */
7585 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
7586 u8 *rates, u8 rates_len,
7587 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
7591 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
7593 for (i = 0; i < rates_len; i++) {
7596 ridx = rates[i] / 8;
7597 rbit = BIT(rates[i] % 8);
7599 /* check validity */
7600 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
7603 /* check availability */
7604 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
7613 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
7617 switch (vht_mcs_map) {
7618 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
7620 case IEEE80211_VHT_MCS_SUPPORT_0_7:
7623 case IEEE80211_VHT_MCS_SUPPORT_0_8:
7626 case IEEE80211_VHT_MCS_SUPPORT_0_9:
7636 static void vht_build_mcs_mask(u16 vht_mcs_map,
7637 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
7641 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
7642 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
7647 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
7648 struct nl80211_txrate_vht *txrate,
7649 u16 mcs[NL80211_VHT_NSS_MAX])
7651 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7652 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
7655 if (!sband->vht_cap.vht_supported)
7658 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
7660 /* Build vht_mcs_mask from VHT capabilities */
7661 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
7663 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
7664 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
7665 mcs[i] = txrate->mcs[i];
7673 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
7674 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
7675 .len = NL80211_MAX_SUPP_RATES },
7676 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
7677 .len = NL80211_MAX_SUPP_HT_RATES },
7678 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
7679 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
7682 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
7683 struct genl_info *info)
7685 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
7686 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7687 struct cfg80211_bitrate_mask mask;
7689 struct net_device *dev = info->user_ptr[1];
7690 struct nlattr *tx_rates;
7691 struct ieee80211_supported_band *sband;
7694 if (!rdev->ops->set_bitrate_mask)
7697 memset(&mask, 0, sizeof(mask));
7698 /* Default to all rates enabled */
7699 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
7700 sband = rdev->wiphy.bands[i];
7705 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
7706 memcpy(mask.control[i].ht_mcs,
7707 sband->ht_cap.mcs.rx_mask,
7708 sizeof(mask.control[i].ht_mcs));
7710 if (!sband->vht_cap.vht_supported)
7713 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
7714 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
7717 /* if no rates are given set it back to the defaults */
7718 if (!info->attrs[NL80211_ATTR_TX_RATES])
7722 * The nested attribute uses enum nl80211_band as the index. This maps
7723 * directly to the enum ieee80211_band values used in cfg80211.
7725 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
7726 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
7727 enum ieee80211_band band = nla_type(tx_rates);
7730 if (band < 0 || band >= IEEE80211_NUM_BANDS)
7732 sband = rdev->wiphy.bands[band];
7735 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
7736 nla_len(tx_rates), nl80211_txattr_policy);
7739 if (tb[NL80211_TXRATE_LEGACY]) {
7740 mask.control[band].legacy = rateset_to_mask(
7742 nla_data(tb[NL80211_TXRATE_LEGACY]),
7743 nla_len(tb[NL80211_TXRATE_LEGACY]));
7744 if ((mask.control[band].legacy == 0) &&
7745 nla_len(tb[NL80211_TXRATE_LEGACY]))
7748 if (tb[NL80211_TXRATE_HT]) {
7749 if (!ht_rateset_to_mask(
7751 nla_data(tb[NL80211_TXRATE_HT]),
7752 nla_len(tb[NL80211_TXRATE_HT]),
7753 mask.control[band].ht_mcs))
7756 if (tb[NL80211_TXRATE_VHT]) {
7757 if (!vht_set_mcs_mask(
7759 nla_data(tb[NL80211_TXRATE_VHT]),
7760 mask.control[band].vht_mcs))
7763 if (tb[NL80211_TXRATE_GI]) {
7764 mask.control[band].gi =
7765 nla_get_u8(tb[NL80211_TXRATE_GI]);
7766 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
7770 if (mask.control[band].legacy == 0) {
7771 /* don't allow empty legacy rates if HT or VHT
7772 * are not even supported.
7774 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
7775 rdev->wiphy.bands[band]->vht_cap.vht_supported))
7778 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
7779 if (mask.control[band].ht_mcs[i])
7782 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
7783 if (mask.control[band].vht_mcs[i])
7786 /* legacy and mcs rates may not be both empty */
7792 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
7795 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
7797 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7798 struct wireless_dev *wdev = info->user_ptr[1];
7799 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
7801 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
7804 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
7805 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
7807 switch (wdev->iftype) {
7808 case NL80211_IFTYPE_STATION:
7809 case NL80211_IFTYPE_ADHOC:
7810 case NL80211_IFTYPE_P2P_CLIENT:
7811 case NL80211_IFTYPE_AP:
7812 case NL80211_IFTYPE_AP_VLAN:
7813 case NL80211_IFTYPE_MESH_POINT:
7814 case NL80211_IFTYPE_P2P_GO:
7815 case NL80211_IFTYPE_P2P_DEVICE:
7821 /* not much point in registering if we can't reply */
7822 if (!rdev->ops->mgmt_tx)
7825 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
7826 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
7827 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
7830 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
7832 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7833 struct wireless_dev *wdev = info->user_ptr[1];
7834 struct cfg80211_chan_def chandef;
7838 struct sk_buff *msg = NULL;
7839 struct cfg80211_mgmt_tx_params params = {
7840 .dont_wait_for_ack =
7841 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
7844 if (!info->attrs[NL80211_ATTR_FRAME])
7847 if (!rdev->ops->mgmt_tx)
7850 switch (wdev->iftype) {
7851 case NL80211_IFTYPE_P2P_DEVICE:
7852 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7854 case NL80211_IFTYPE_STATION:
7855 case NL80211_IFTYPE_ADHOC:
7856 case NL80211_IFTYPE_P2P_CLIENT:
7857 case NL80211_IFTYPE_AP:
7858 case NL80211_IFTYPE_AP_VLAN:
7859 case NL80211_IFTYPE_MESH_POINT:
7860 case NL80211_IFTYPE_P2P_GO:
7866 if (info->attrs[NL80211_ATTR_DURATION]) {
7867 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7869 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7872 * We should wait on the channel for at least a minimum amount
7873 * of time (10ms) but no longer than the driver supports.
7875 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7876 params.wait > rdev->wiphy.max_remain_on_channel_duration)
7881 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
7883 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
7886 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
7888 /* get the channel if any has been specified, otherwise pass NULL to
7889 * the driver. The latter will use the current one
7891 chandef.chan = NULL;
7892 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7893 err = nl80211_parse_chandef(rdev, info, &chandef);
7898 if (!chandef.chan && params.offchan)
7901 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
7902 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
7904 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
7905 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7908 if (len % sizeof(u16))
7911 params.n_csa_offsets = len / sizeof(u16);
7912 params.csa_offsets =
7913 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
7915 /* check that all the offsets fit the frame */
7916 for (i = 0; i < params.n_csa_offsets; i++) {
7917 if (params.csa_offsets[i] >= params.len)
7922 if (!params.dont_wait_for_ack) {
7923 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
7927 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
7935 params.chan = chandef.chan;
7936 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
7941 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
7942 goto nla_put_failure;
7944 genlmsg_end(msg, hdr);
7945 return genlmsg_reply(msg, info);
7957 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
7959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7960 struct wireless_dev *wdev = info->user_ptr[1];
7963 if (!info->attrs[NL80211_ATTR_COOKIE])
7966 if (!rdev->ops->mgmt_tx_cancel_wait)
7969 switch (wdev->iftype) {
7970 case NL80211_IFTYPE_STATION:
7971 case NL80211_IFTYPE_ADHOC:
7972 case NL80211_IFTYPE_P2P_CLIENT:
7973 case NL80211_IFTYPE_AP:
7974 case NL80211_IFTYPE_AP_VLAN:
7975 case NL80211_IFTYPE_P2P_GO:
7976 case NL80211_IFTYPE_P2P_DEVICE:
7982 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
7984 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
7987 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
7989 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7990 struct wireless_dev *wdev;
7991 struct net_device *dev = info->user_ptr[1];
7996 if (!info->attrs[NL80211_ATTR_PS_STATE])
7999 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8001 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8004 wdev = dev->ieee80211_ptr;
8006 if (!rdev->ops->set_power_mgmt)
8009 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8011 if (state == wdev->ps)
8014 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8020 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8023 enum nl80211_ps_state ps_state;
8024 struct wireless_dev *wdev;
8025 struct net_device *dev = info->user_ptr[1];
8026 struct sk_buff *msg;
8030 wdev = dev->ieee80211_ptr;
8032 if (!rdev->ops->set_power_mgmt)
8035 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8039 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8040 NL80211_CMD_GET_POWER_SAVE);
8047 ps_state = NL80211_PS_ENABLED;
8049 ps_state = NL80211_PS_DISABLED;
8051 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8052 goto nla_put_failure;
8054 genlmsg_end(msg, hdr);
8055 return genlmsg_reply(msg, info);
8064 static const struct nla_policy
8065 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8066 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8067 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8068 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8069 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8070 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8071 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8074 static int nl80211_set_cqm_txe(struct genl_info *info,
8075 u32 rate, u32 pkts, u32 intvl)
8077 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8078 struct net_device *dev = info->user_ptr[1];
8079 struct wireless_dev *wdev = dev->ieee80211_ptr;
8081 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8084 if (!rdev->ops->set_cqm_txe_config)
8087 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8088 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8091 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8094 static int nl80211_set_cqm_rssi(struct genl_info *info,
8095 s32 threshold, u32 hysteresis)
8097 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8098 struct net_device *dev = info->user_ptr[1];
8099 struct wireless_dev *wdev = dev->ieee80211_ptr;
8104 /* disabling - hysteresis should also be zero then */
8108 if (!rdev->ops->set_cqm_rssi_config)
8111 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8112 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8115 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8118 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8120 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8124 cqm = info->attrs[NL80211_ATTR_CQM];
8128 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8129 nl80211_attr_cqm_policy);
8133 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8134 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8135 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8136 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8138 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8141 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8142 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8143 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8144 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8145 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8146 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8148 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8154 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8156 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8157 struct net_device *dev = info->user_ptr[1];
8158 struct mesh_config cfg;
8159 struct mesh_setup setup;
8162 /* start with default */
8163 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8164 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8166 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8167 /* and parse parameters if given */
8168 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8173 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8174 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8177 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8178 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8180 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8181 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8182 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8185 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8186 setup.beacon_interval =
8187 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8188 if (setup.beacon_interval < 10 ||
8189 setup.beacon_interval > 10000)
8193 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8195 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8196 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8200 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8201 /* parse additional setup parameters if given */
8202 err = nl80211_parse_mesh_setup(info, &setup);
8208 cfg.auto_open_plinks = false;
8210 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8211 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8215 /* cfg80211_join_mesh() will sort it out */
8216 setup.chandef.chan = NULL;
8219 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8220 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8222 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8223 struct ieee80211_supported_band *sband;
8225 if (!setup.chandef.chan)
8228 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8230 err = ieee80211_get_ratemask(sband, rates, n_rates,
8231 &setup.basic_rates);
8236 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8239 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8241 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8242 struct net_device *dev = info->user_ptr[1];
8244 return cfg80211_leave_mesh(rdev, dev);
8248 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8249 struct cfg80211_registered_device *rdev)
8251 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8252 struct nlattr *nl_pats, *nl_pat;
8255 if (!wowlan->n_patterns)
8258 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8262 for (i = 0; i < wowlan->n_patterns; i++) {
8263 nl_pat = nla_nest_start(msg, i + 1);
8266 pat_len = wowlan->patterns[i].pattern_len;
8267 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8268 wowlan->patterns[i].mask) ||
8269 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8270 wowlan->patterns[i].pattern) ||
8271 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8272 wowlan->patterns[i].pkt_offset))
8274 nla_nest_end(msg, nl_pat);
8276 nla_nest_end(msg, nl_pats);
8281 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8282 struct cfg80211_wowlan_tcp *tcp)
8284 struct nlattr *nl_tcp;
8289 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8293 if (nla_put_be32(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8294 nla_put_be32(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8295 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8296 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8297 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8298 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8299 tcp->payload_len, tcp->payload) ||
8300 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8301 tcp->data_interval) ||
8302 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8303 tcp->wake_len, tcp->wake_data) ||
8304 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8305 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8308 if (tcp->payload_seq.len &&
8309 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8310 sizeof(tcp->payload_seq), &tcp->payload_seq))
8313 if (tcp->payload_tok.len &&
8314 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8315 sizeof(tcp->payload_tok) + tcp->tokens_size,
8319 nla_nest_end(msg, nl_tcp);
8324 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8327 struct sk_buff *msg;
8329 u32 size = NLMSG_DEFAULT_SIZE;
8331 if (!rdev->wiphy.wowlan)
8334 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8335 /* adjust size to have room for all the data */
8336 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8337 rdev->wiphy.wowlan_config->tcp->payload_len +
8338 rdev->wiphy.wowlan_config->tcp->wake_len +
8339 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8342 msg = nlmsg_new(size, GFP_KERNEL);
8346 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8347 NL80211_CMD_GET_WOWLAN);
8349 goto nla_put_failure;
8351 if (rdev->wiphy.wowlan_config) {
8352 struct nlattr *nl_wowlan;
8354 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8356 goto nla_put_failure;
8358 if ((rdev->wiphy.wowlan_config->any &&
8359 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8360 (rdev->wiphy.wowlan_config->disconnect &&
8361 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8362 (rdev->wiphy.wowlan_config->magic_pkt &&
8363 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8364 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8365 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8366 (rdev->wiphy.wowlan_config->eap_identity_req &&
8367 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8368 (rdev->wiphy.wowlan_config->four_way_handshake &&
8369 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8370 (rdev->wiphy.wowlan_config->rfkill_release &&
8371 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8372 goto nla_put_failure;
8374 if (nl80211_send_wowlan_patterns(msg, rdev))
8375 goto nla_put_failure;
8377 if (nl80211_send_wowlan_tcp(msg,
8378 rdev->wiphy.wowlan_config->tcp))
8379 goto nla_put_failure;
8381 nla_nest_end(msg, nl_wowlan);
8384 genlmsg_end(msg, hdr);
8385 return genlmsg_reply(msg, info);
8392 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8393 struct nlattr *attr,
8394 struct cfg80211_wowlan *trig)
8396 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8397 struct cfg80211_wowlan_tcp *cfg;
8398 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8399 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8401 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8404 if (!rdev->wiphy.wowlan->tcp)
8407 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8408 nla_data(attr), nla_len(attr),
8409 nl80211_wowlan_tcp_policy);
8413 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8414 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8415 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8416 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8417 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8418 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8419 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8420 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8423 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8424 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8427 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8428 rdev->wiphy.wowlan->tcp->data_interval_max ||
8429 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8432 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8433 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8436 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8437 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8440 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8441 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8443 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
8444 tokens_size = tokln - sizeof(*tok);
8446 if (!tok->len || tokens_size % tok->len)
8448 if (!rdev->wiphy.wowlan->tcp->tok)
8450 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
8452 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
8454 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
8456 if (tok->offset + tok->len > data_size)
8460 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
8461 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
8462 if (!rdev->wiphy.wowlan->tcp->seq)
8464 if (seq->len == 0 || seq->len > 4)
8466 if (seq->len + seq->offset > data_size)
8470 size = sizeof(*cfg);
8472 size += wake_size + wake_mask_size;
8473 size += tokens_size;
8475 cfg = kzalloc(size, GFP_KERNEL);
8478 cfg->src = nla_get_be32(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
8479 cfg->dst = nla_get_be32(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
8480 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
8482 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
8483 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
8487 /* allocate a socket and port for it and use it */
8488 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
8489 IPPROTO_TCP, &cfg->sock, 1);
8494 if (inet_csk_get_port(cfg->sock->sk, port)) {
8495 sock_release(cfg->sock);
8499 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
8505 cfg->src_port = port;
8508 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
8509 cfg->payload_len = data_size;
8510 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
8511 memcpy((void *)cfg->payload,
8512 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
8515 cfg->payload_seq = *seq;
8516 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
8517 cfg->wake_len = wake_size;
8518 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
8519 memcpy((void *)cfg->wake_data,
8520 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
8522 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
8523 data_size + wake_size;
8524 memcpy((void *)cfg->wake_mask,
8525 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
8528 cfg->tokens_size = tokens_size;
8529 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
8537 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
8539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8540 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
8541 struct cfg80211_wowlan new_triggers = {};
8542 struct cfg80211_wowlan *ntrig;
8543 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
8545 bool prev_enabled = rdev->wiphy.wowlan_config;
8550 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
8551 cfg80211_rdev_free_wowlan(rdev);
8552 rdev->wiphy.wowlan_config = NULL;
8556 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
8557 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8558 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
8559 nl80211_wowlan_policy);
8563 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
8564 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
8566 new_triggers.any = true;
8569 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
8570 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
8572 new_triggers.disconnect = true;
8575 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
8576 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
8578 new_triggers.magic_pkt = true;
8581 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
8584 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
8585 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
8587 new_triggers.gtk_rekey_failure = true;
8590 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
8591 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
8593 new_triggers.eap_identity_req = true;
8596 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
8597 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
8599 new_triggers.four_way_handshake = true;
8602 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
8603 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
8605 new_triggers.rfkill_release = true;
8608 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
8611 int rem, pat_len, mask_len, pkt_offset;
8612 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8614 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8617 if (n_patterns > wowlan->n_patterns)
8620 new_triggers.patterns = kcalloc(n_patterns,
8621 sizeof(new_triggers.patterns[0]),
8623 if (!new_triggers.patterns)
8626 new_triggers.n_patterns = n_patterns;
8629 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
8633 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8634 nla_len(pat), NULL);
8636 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8637 !pat_tb[NL80211_PKTPAT_PATTERN])
8639 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8640 mask_len = DIV_ROUND_UP(pat_len, 8);
8641 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8643 if (pat_len > wowlan->pattern_max_len ||
8644 pat_len < wowlan->pattern_min_len)
8647 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8650 pkt_offset = nla_get_u32(
8651 pat_tb[NL80211_PKTPAT_OFFSET]);
8652 if (pkt_offset > wowlan->max_pkt_offset)
8654 new_triggers.patterns[i].pkt_offset = pkt_offset;
8656 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8661 new_triggers.patterns[i].mask = mask_pat;
8662 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8664 mask_pat += mask_len;
8665 new_triggers.patterns[i].pattern = mask_pat;
8666 new_triggers.patterns[i].pattern_len = pat_len;
8668 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8674 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
8675 err = nl80211_parse_wowlan_tcp(
8676 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
8682 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
8687 cfg80211_rdev_free_wowlan(rdev);
8688 rdev->wiphy.wowlan_config = ntrig;
8691 if (rdev->ops->set_wakeup &&
8692 prev_enabled != !!rdev->wiphy.wowlan_config)
8693 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
8697 for (i = 0; i < new_triggers.n_patterns; i++)
8698 kfree(new_triggers.patterns[i].mask);
8699 kfree(new_triggers.patterns);
8700 if (new_triggers.tcp && new_triggers.tcp->sock)
8701 sock_release(new_triggers.tcp->sock);
8702 kfree(new_triggers.tcp);
8707 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
8708 struct cfg80211_registered_device *rdev)
8710 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
8712 struct cfg80211_coalesce_rules *rule;
8714 if (!rdev->coalesce->n_rules)
8717 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
8721 for (i = 0; i < rdev->coalesce->n_rules; i++) {
8722 nl_rule = nla_nest_start(msg, i + 1);
8726 rule = &rdev->coalesce->rules[i];
8727 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
8731 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
8735 nl_pats = nla_nest_start(msg,
8736 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
8740 for (j = 0; j < rule->n_patterns; j++) {
8741 nl_pat = nla_nest_start(msg, j + 1);
8744 pat_len = rule->patterns[j].pattern_len;
8745 if (nla_put(msg, NL80211_PKTPAT_MASK,
8746 DIV_ROUND_UP(pat_len, 8),
8747 rule->patterns[j].mask) ||
8748 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8749 rule->patterns[j].pattern) ||
8750 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8751 rule->patterns[j].pkt_offset))
8753 nla_nest_end(msg, nl_pat);
8755 nla_nest_end(msg, nl_pats);
8756 nla_nest_end(msg, nl_rule);
8758 nla_nest_end(msg, nl_rules);
8763 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
8765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8766 struct sk_buff *msg;
8769 if (!rdev->wiphy.coalesce)
8772 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8776 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8777 NL80211_CMD_GET_COALESCE);
8779 goto nla_put_failure;
8781 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
8782 goto nla_put_failure;
8784 genlmsg_end(msg, hdr);
8785 return genlmsg_reply(msg, info);
8792 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
8794 struct cfg80211_coalesce *coalesce = rdev->coalesce;
8796 struct cfg80211_coalesce_rules *rule;
8801 for (i = 0; i < coalesce->n_rules; i++) {
8802 rule = &coalesce->rules[i];
8803 for (j = 0; j < rule->n_patterns; j++)
8804 kfree(rule->patterns[j].mask);
8805 kfree(rule->patterns);
8807 kfree(coalesce->rules);
8809 rdev->coalesce = NULL;
8812 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
8813 struct nlattr *rule,
8814 struct cfg80211_coalesce_rules *new_rule)
8817 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8818 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
8819 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
8820 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
8822 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
8823 nla_len(rule), nl80211_coalesce_policy);
8827 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
8829 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
8830 if (new_rule->delay > coalesce->max_delay)
8833 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
8834 new_rule->condition =
8835 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
8836 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
8837 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
8840 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
8843 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8846 if (n_patterns > coalesce->n_patterns)
8849 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
8851 if (!new_rule->patterns)
8854 new_rule->n_patterns = n_patterns;
8857 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
8861 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
8862 nla_len(pat), NULL);
8863 if (!pat_tb[NL80211_PKTPAT_MASK] ||
8864 !pat_tb[NL80211_PKTPAT_PATTERN])
8866 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
8867 mask_len = DIV_ROUND_UP(pat_len, 8);
8868 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
8870 if (pat_len > coalesce->pattern_max_len ||
8871 pat_len < coalesce->pattern_min_len)
8874 if (!pat_tb[NL80211_PKTPAT_OFFSET])
8877 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
8878 if (pkt_offset > coalesce->max_pkt_offset)
8880 new_rule->patterns[i].pkt_offset = pkt_offset;
8882 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
8886 new_rule->patterns[i].mask = mask_pat;
8887 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
8890 mask_pat += mask_len;
8891 new_rule->patterns[i].pattern = mask_pat;
8892 new_rule->patterns[i].pattern_len = pat_len;
8893 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
8901 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
8903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8904 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
8905 struct cfg80211_coalesce new_coalesce = {};
8906 struct cfg80211_coalesce *n_coalesce;
8907 int err, rem_rule, n_rules = 0, i, j;
8908 struct nlattr *rule;
8909 struct cfg80211_coalesce_rules *tmp_rule;
8911 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
8914 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
8915 cfg80211_rdev_free_coalesce(rdev);
8916 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
8920 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8923 if (n_rules > coalesce->n_rules)
8926 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
8928 if (!new_coalesce.rules)
8931 new_coalesce.n_rules = n_rules;
8934 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
8936 err = nl80211_parse_coalesce_rule(rdev, rule,
8937 &new_coalesce.rules[i]);
8944 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
8948 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
8953 cfg80211_rdev_free_coalesce(rdev);
8954 rdev->coalesce = n_coalesce;
8958 for (i = 0; i < new_coalesce.n_rules; i++) {
8959 tmp_rule = &new_coalesce.rules[i];
8960 for (j = 0; j < tmp_rule->n_patterns; j++)
8961 kfree(tmp_rule->patterns[j].mask);
8962 kfree(tmp_rule->patterns);
8964 kfree(new_coalesce.rules);
8969 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
8971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8972 struct net_device *dev = info->user_ptr[1];
8973 struct wireless_dev *wdev = dev->ieee80211_ptr;
8974 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
8975 struct cfg80211_gtk_rekey_data rekey_data;
8978 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
8981 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
8982 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
8983 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
8984 nl80211_rekey_policy);
8988 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
8990 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
8992 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
8995 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
8996 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
8997 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9000 if (!wdev->current_bss) {
9005 if (!rdev->ops->set_rekey_data) {
9010 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9016 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9017 struct genl_info *info)
9019 struct net_device *dev = info->user_ptr[1];
9020 struct wireless_dev *wdev = dev->ieee80211_ptr;
9022 if (wdev->iftype != NL80211_IFTYPE_AP &&
9023 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9026 if (wdev->ap_unexpected_nlportid)
9029 wdev->ap_unexpected_nlportid = info->snd_portid;
9033 static int nl80211_probe_client(struct sk_buff *skb,
9034 struct genl_info *info)
9036 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9037 struct net_device *dev = info->user_ptr[1];
9038 struct wireless_dev *wdev = dev->ieee80211_ptr;
9039 struct sk_buff *msg;
9045 if (wdev->iftype != NL80211_IFTYPE_AP &&
9046 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9049 if (!info->attrs[NL80211_ATTR_MAC])
9052 if (!rdev->ops->probe_client)
9055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9059 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9060 NL80211_CMD_PROBE_CLIENT);
9066 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9068 err = rdev_probe_client(rdev, dev, addr, &cookie);
9072 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9073 goto nla_put_failure;
9075 genlmsg_end(msg, hdr);
9077 return genlmsg_reply(msg, info);
9086 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9088 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9089 struct cfg80211_beacon_registration *reg, *nreg;
9092 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9095 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9099 /* First, check if already registered. */
9100 spin_lock_bh(&rdev->beacon_registrations_lock);
9101 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9102 if (reg->nlportid == info->snd_portid) {
9107 /* Add it to the list */
9108 nreg->nlportid = info->snd_portid;
9109 list_add(&nreg->list, &rdev->beacon_registrations);
9111 spin_unlock_bh(&rdev->beacon_registrations_lock);
9115 spin_unlock_bh(&rdev->beacon_registrations_lock);
9120 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9122 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9123 struct wireless_dev *wdev = info->user_ptr[1];
9126 if (!rdev->ops->start_p2p_device)
9129 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9132 if (wdev->p2p_started)
9135 if (rfkill_blocked(rdev->rfkill))
9138 err = rdev_start_p2p_device(rdev, wdev);
9142 wdev->p2p_started = true;
9148 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9150 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9151 struct wireless_dev *wdev = info->user_ptr[1];
9153 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9156 if (!rdev->ops->stop_p2p_device)
9159 cfg80211_stop_p2p_device(rdev, wdev);
9164 static int nl80211_get_protocol_features(struct sk_buff *skb,
9165 struct genl_info *info)
9168 struct sk_buff *msg;
9170 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9174 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9175 NL80211_CMD_GET_PROTOCOL_FEATURES);
9177 goto nla_put_failure;
9179 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9180 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9181 goto nla_put_failure;
9183 genlmsg_end(msg, hdr);
9184 return genlmsg_reply(msg, info);
9191 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9193 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9194 struct cfg80211_update_ft_ies_params ft_params;
9195 struct net_device *dev = info->user_ptr[1];
9197 if (!rdev->ops->update_ft_ies)
9200 if (!info->attrs[NL80211_ATTR_MDID] ||
9201 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9204 memset(&ft_params, 0, sizeof(ft_params));
9205 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9206 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9207 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9209 return rdev_update_ft_ies(rdev, dev, &ft_params);
9212 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9213 struct genl_info *info)
9215 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9216 struct wireless_dev *wdev = info->user_ptr[1];
9217 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9221 if (!rdev->ops->crit_proto_start)
9224 if (WARN_ON(!rdev->ops->crit_proto_stop))
9227 if (rdev->crit_proto_nlportid)
9230 /* determine protocol if provided */
9231 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9232 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9234 if (proto >= NUM_NL80211_CRIT_PROTO)
9237 /* timeout must be provided */
9238 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9242 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9244 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9247 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9249 rdev->crit_proto_nlportid = info->snd_portid;
9254 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9255 struct genl_info *info)
9257 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9258 struct wireless_dev *wdev = info->user_ptr[1];
9260 if (!rdev->ops->crit_proto_stop)
9263 if (rdev->crit_proto_nlportid) {
9264 rdev->crit_proto_nlportid = 0;
9265 rdev_crit_proto_stop(rdev, wdev);
9270 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9272 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9273 struct wireless_dev *wdev =
9274 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9278 if (!rdev->wiphy.vendor_commands)
9282 err = PTR_ERR(wdev);
9286 } else if (wdev->wiphy != &rdev->wiphy) {
9290 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9291 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9294 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9295 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9296 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9297 const struct wiphy_vendor_command *vcmd;
9301 vcmd = &rdev->wiphy.vendor_commands[i];
9303 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9306 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9307 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9310 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9314 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9316 !netif_running(wdev->netdev))
9318 if (!wdev->netdev && !wdev->p2p_started)
9325 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9326 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9327 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9330 rdev->cur_cmd_info = info;
9331 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9333 rdev->cur_cmd_info = NULL;
9340 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9341 enum nl80211_commands cmd,
9342 enum nl80211_attrs attr,
9345 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9347 if (WARN_ON(!rdev->cur_cmd_info))
9350 return __cfg80211_alloc_vendor_skb(rdev, approxlen,
9351 rdev->cur_cmd_info->snd_portid,
9352 rdev->cur_cmd_info->snd_seq,
9353 cmd, attr, NULL, GFP_KERNEL);
9355 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9357 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9359 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9360 void *hdr = ((void **)skb->cb)[1];
9361 struct nlattr *data = ((void **)skb->cb)[2];
9363 /* clear CB data for netlink core to own from now on */
9364 memset(skb->cb, 0, sizeof(skb->cb));
9366 if (WARN_ON(!rdev->cur_cmd_info)) {
9371 nla_nest_end(skb, data);
9372 genlmsg_end(skb, hdr);
9373 return genlmsg_reply(skb, rdev->cur_cmd_info);
9375 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9378 static int nl80211_set_qos_map(struct sk_buff *skb,
9379 struct genl_info *info)
9381 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9382 struct cfg80211_qos_map *qos_map = NULL;
9383 struct net_device *dev = info->user_ptr[1];
9384 u8 *pos, len, num_des, des_len, des;
9387 if (!rdev->ops->set_qos_map)
9390 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
9391 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
9392 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
9394 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
9395 len > IEEE80211_QOS_MAP_LEN_MAX)
9398 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
9402 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
9405 sizeof(struct cfg80211_dscp_exception);
9406 memcpy(qos_map->dscp_exception, pos, des_len);
9407 qos_map->num_des = num_des;
9408 for (des = 0; des < num_des; des++) {
9409 if (qos_map->dscp_exception[des].up > 7) {
9416 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
9419 wdev_lock(dev->ieee80211_ptr);
9420 ret = nl80211_key_allowed(dev->ieee80211_ptr);
9422 ret = rdev_set_qos_map(rdev, dev, qos_map);
9423 wdev_unlock(dev->ieee80211_ptr);
9429 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
9431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9432 struct net_device *dev = info->user_ptr[1];
9433 struct wireless_dev *wdev = dev->ieee80211_ptr;
9436 u16 admitted_time = 0;
9439 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION))
9442 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
9443 !info->attrs[NL80211_ATTR_USER_PRIO])
9446 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9447 if (tsid >= IEEE80211_NUM_TIDS)
9450 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
9451 if (up >= IEEE80211_NUM_UPS)
9454 /* WMM uses TIDs 0-7 even for TSPEC */
9455 if (tsid < IEEE80211_FIRST_TSPEC_TSID) {
9456 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_WMM_ADMISSION))
9459 /* TODO: handle 802.11 TSPEC/admission control
9460 * need more attributes for that (e.g. BA session requirement)
9465 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9467 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
9469 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
9475 switch (wdev->iftype) {
9476 case NL80211_IFTYPE_STATION:
9477 case NL80211_IFTYPE_P2P_CLIENT:
9478 if (wdev->current_bss)
9487 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
9494 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
9496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9497 struct net_device *dev = info->user_ptr[1];
9498 struct wireless_dev *wdev = dev->ieee80211_ptr;
9503 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
9506 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
9507 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
9510 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
9516 #define NL80211_FLAG_NEED_WIPHY 0x01
9517 #define NL80211_FLAG_NEED_NETDEV 0x02
9518 #define NL80211_FLAG_NEED_RTNL 0x04
9519 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
9520 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
9521 NL80211_FLAG_CHECK_NETDEV_UP)
9522 #define NL80211_FLAG_NEED_WDEV 0x10
9523 /* If a netdev is associated, it must be UP, P2P must be started */
9524 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
9525 NL80211_FLAG_CHECK_NETDEV_UP)
9526 #define NL80211_FLAG_CLEAR_SKB 0x20
9528 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
9529 struct genl_info *info)
9531 struct cfg80211_registered_device *rdev;
9532 struct wireless_dev *wdev;
9533 struct net_device *dev;
9534 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
9539 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
9540 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
9544 return PTR_ERR(rdev);
9546 info->user_ptr[0] = rdev;
9547 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
9548 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9551 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
9556 return PTR_ERR(wdev);
9560 rdev = wiphy_to_rdev(wdev->wiphy);
9562 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
9569 info->user_ptr[1] = dev;
9571 info->user_ptr[1] = wdev;
9575 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
9576 !netif_running(dev)) {
9583 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
9584 if (!wdev->p2p_started) {
9591 info->user_ptr[0] = rdev;
9597 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
9598 struct genl_info *info)
9600 if (info->user_ptr[1]) {
9601 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
9602 struct wireless_dev *wdev = info->user_ptr[1];
9605 dev_put(wdev->netdev);
9607 dev_put(info->user_ptr[1]);
9611 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
9614 /* If needed, clear the netlink message payload from the SKB
9615 * as it might contain key data that shouldn't stick around on
9616 * the heap after the SKB is freed. The netlink message header
9617 * is still needed for further processing, so leave it intact.
9619 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
9620 struct nlmsghdr *nlh = nlmsg_hdr(skb);
9622 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
9626 static const struct genl_ops nl80211_ops[] = {
9628 .cmd = NL80211_CMD_GET_WIPHY,
9629 .doit = nl80211_get_wiphy,
9630 .dumpit = nl80211_dump_wiphy,
9631 .done = nl80211_dump_wiphy_done,
9632 .policy = nl80211_policy,
9633 /* can be retrieved by unprivileged users */
9634 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9635 NL80211_FLAG_NEED_RTNL,
9638 .cmd = NL80211_CMD_SET_WIPHY,
9639 .doit = nl80211_set_wiphy,
9640 .policy = nl80211_policy,
9641 .flags = GENL_ADMIN_PERM,
9642 .internal_flags = NL80211_FLAG_NEED_RTNL,
9645 .cmd = NL80211_CMD_GET_INTERFACE,
9646 .doit = nl80211_get_interface,
9647 .dumpit = nl80211_dump_interface,
9648 .policy = nl80211_policy,
9649 /* can be retrieved by unprivileged users */
9650 .internal_flags = NL80211_FLAG_NEED_WDEV |
9651 NL80211_FLAG_NEED_RTNL,
9654 .cmd = NL80211_CMD_SET_INTERFACE,
9655 .doit = nl80211_set_interface,
9656 .policy = nl80211_policy,
9657 .flags = GENL_ADMIN_PERM,
9658 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9659 NL80211_FLAG_NEED_RTNL,
9662 .cmd = NL80211_CMD_NEW_INTERFACE,
9663 .doit = nl80211_new_interface,
9664 .policy = nl80211_policy,
9665 .flags = GENL_ADMIN_PERM,
9666 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9667 NL80211_FLAG_NEED_RTNL,
9670 .cmd = NL80211_CMD_DEL_INTERFACE,
9671 .doit = nl80211_del_interface,
9672 .policy = nl80211_policy,
9673 .flags = GENL_ADMIN_PERM,
9674 .internal_flags = NL80211_FLAG_NEED_WDEV |
9675 NL80211_FLAG_NEED_RTNL,
9678 .cmd = NL80211_CMD_GET_KEY,
9679 .doit = nl80211_get_key,
9680 .policy = nl80211_policy,
9681 .flags = GENL_ADMIN_PERM,
9682 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9683 NL80211_FLAG_NEED_RTNL,
9686 .cmd = NL80211_CMD_SET_KEY,
9687 .doit = nl80211_set_key,
9688 .policy = nl80211_policy,
9689 .flags = GENL_ADMIN_PERM,
9690 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9691 NL80211_FLAG_NEED_RTNL |
9692 NL80211_FLAG_CLEAR_SKB,
9695 .cmd = NL80211_CMD_NEW_KEY,
9696 .doit = nl80211_new_key,
9697 .policy = nl80211_policy,
9698 .flags = GENL_ADMIN_PERM,
9699 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9700 NL80211_FLAG_NEED_RTNL |
9701 NL80211_FLAG_CLEAR_SKB,
9704 .cmd = NL80211_CMD_DEL_KEY,
9705 .doit = nl80211_del_key,
9706 .policy = nl80211_policy,
9707 .flags = GENL_ADMIN_PERM,
9708 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9709 NL80211_FLAG_NEED_RTNL,
9712 .cmd = NL80211_CMD_SET_BEACON,
9713 .policy = nl80211_policy,
9714 .flags = GENL_ADMIN_PERM,
9715 .doit = nl80211_set_beacon,
9716 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9717 NL80211_FLAG_NEED_RTNL,
9720 .cmd = NL80211_CMD_START_AP,
9721 .policy = nl80211_policy,
9722 .flags = GENL_ADMIN_PERM,
9723 .doit = nl80211_start_ap,
9724 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9725 NL80211_FLAG_NEED_RTNL,
9728 .cmd = NL80211_CMD_STOP_AP,
9729 .policy = nl80211_policy,
9730 .flags = GENL_ADMIN_PERM,
9731 .doit = nl80211_stop_ap,
9732 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9733 NL80211_FLAG_NEED_RTNL,
9736 .cmd = NL80211_CMD_GET_STATION,
9737 .doit = nl80211_get_station,
9738 .dumpit = nl80211_dump_station,
9739 .policy = nl80211_policy,
9740 .internal_flags = NL80211_FLAG_NEED_NETDEV |
9741 NL80211_FLAG_NEED_RTNL,
9744 .cmd = NL80211_CMD_SET_STATION,
9745 .doit = nl80211_set_station,
9746 .policy = nl80211_policy,
9747 .flags = GENL_ADMIN_PERM,
9748 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9749 NL80211_FLAG_NEED_RTNL,
9752 .cmd = NL80211_CMD_NEW_STATION,
9753 .doit = nl80211_new_station,
9754 .policy = nl80211_policy,
9755 .flags = GENL_ADMIN_PERM,
9756 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9757 NL80211_FLAG_NEED_RTNL,
9760 .cmd = NL80211_CMD_DEL_STATION,
9761 .doit = nl80211_del_station,
9762 .policy = nl80211_policy,
9763 .flags = GENL_ADMIN_PERM,
9764 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9765 NL80211_FLAG_NEED_RTNL,
9768 .cmd = NL80211_CMD_GET_MPATH,
9769 .doit = nl80211_get_mpath,
9770 .dumpit = nl80211_dump_mpath,
9771 .policy = nl80211_policy,
9772 .flags = GENL_ADMIN_PERM,
9773 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9774 NL80211_FLAG_NEED_RTNL,
9777 .cmd = NL80211_CMD_SET_MPATH,
9778 .doit = nl80211_set_mpath,
9779 .policy = nl80211_policy,
9780 .flags = GENL_ADMIN_PERM,
9781 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9782 NL80211_FLAG_NEED_RTNL,
9785 .cmd = NL80211_CMD_NEW_MPATH,
9786 .doit = nl80211_new_mpath,
9787 .policy = nl80211_policy,
9788 .flags = GENL_ADMIN_PERM,
9789 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9790 NL80211_FLAG_NEED_RTNL,
9793 .cmd = NL80211_CMD_DEL_MPATH,
9794 .doit = nl80211_del_mpath,
9795 .policy = nl80211_policy,
9796 .flags = GENL_ADMIN_PERM,
9797 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9798 NL80211_FLAG_NEED_RTNL,
9801 .cmd = NL80211_CMD_SET_BSS,
9802 .doit = nl80211_set_bss,
9803 .policy = nl80211_policy,
9804 .flags = GENL_ADMIN_PERM,
9805 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9806 NL80211_FLAG_NEED_RTNL,
9809 .cmd = NL80211_CMD_GET_REG,
9810 .doit = nl80211_get_reg,
9811 .policy = nl80211_policy,
9812 .internal_flags = NL80211_FLAG_NEED_RTNL,
9813 /* can be retrieved by unprivileged users */
9816 .cmd = NL80211_CMD_SET_REG,
9817 .doit = nl80211_set_reg,
9818 .policy = nl80211_policy,
9819 .flags = GENL_ADMIN_PERM,
9820 .internal_flags = NL80211_FLAG_NEED_RTNL,
9823 .cmd = NL80211_CMD_REQ_SET_REG,
9824 .doit = nl80211_req_set_reg,
9825 .policy = nl80211_policy,
9826 .flags = GENL_ADMIN_PERM,
9829 .cmd = NL80211_CMD_GET_MESH_CONFIG,
9830 .doit = nl80211_get_mesh_config,
9831 .policy = nl80211_policy,
9832 /* can be retrieved by unprivileged users */
9833 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9834 NL80211_FLAG_NEED_RTNL,
9837 .cmd = NL80211_CMD_SET_MESH_CONFIG,
9838 .doit = nl80211_update_mesh_config,
9839 .policy = nl80211_policy,
9840 .flags = GENL_ADMIN_PERM,
9841 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9842 NL80211_FLAG_NEED_RTNL,
9845 .cmd = NL80211_CMD_TRIGGER_SCAN,
9846 .doit = nl80211_trigger_scan,
9847 .policy = nl80211_policy,
9848 .flags = GENL_ADMIN_PERM,
9849 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9850 NL80211_FLAG_NEED_RTNL,
9853 .cmd = NL80211_CMD_GET_SCAN,
9854 .policy = nl80211_policy,
9855 .dumpit = nl80211_dump_scan,
9858 .cmd = NL80211_CMD_START_SCHED_SCAN,
9859 .doit = nl80211_start_sched_scan,
9860 .policy = nl80211_policy,
9861 .flags = GENL_ADMIN_PERM,
9862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9863 NL80211_FLAG_NEED_RTNL,
9866 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
9867 .doit = nl80211_stop_sched_scan,
9868 .policy = nl80211_policy,
9869 .flags = GENL_ADMIN_PERM,
9870 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9871 NL80211_FLAG_NEED_RTNL,
9874 .cmd = NL80211_CMD_AUTHENTICATE,
9875 .doit = nl80211_authenticate,
9876 .policy = nl80211_policy,
9877 .flags = GENL_ADMIN_PERM,
9878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9879 NL80211_FLAG_NEED_RTNL |
9880 NL80211_FLAG_CLEAR_SKB,
9883 .cmd = NL80211_CMD_ASSOCIATE,
9884 .doit = nl80211_associate,
9885 .policy = nl80211_policy,
9886 .flags = GENL_ADMIN_PERM,
9887 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9888 NL80211_FLAG_NEED_RTNL,
9891 .cmd = NL80211_CMD_DEAUTHENTICATE,
9892 .doit = nl80211_deauthenticate,
9893 .policy = nl80211_policy,
9894 .flags = GENL_ADMIN_PERM,
9895 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9896 NL80211_FLAG_NEED_RTNL,
9899 .cmd = NL80211_CMD_DISASSOCIATE,
9900 .doit = nl80211_disassociate,
9901 .policy = nl80211_policy,
9902 .flags = GENL_ADMIN_PERM,
9903 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9904 NL80211_FLAG_NEED_RTNL,
9907 .cmd = NL80211_CMD_JOIN_IBSS,
9908 .doit = nl80211_join_ibss,
9909 .policy = nl80211_policy,
9910 .flags = GENL_ADMIN_PERM,
9911 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9912 NL80211_FLAG_NEED_RTNL,
9915 .cmd = NL80211_CMD_LEAVE_IBSS,
9916 .doit = nl80211_leave_ibss,
9917 .policy = nl80211_policy,
9918 .flags = GENL_ADMIN_PERM,
9919 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9920 NL80211_FLAG_NEED_RTNL,
9922 #ifdef CONFIG_NL80211_TESTMODE
9924 .cmd = NL80211_CMD_TESTMODE,
9925 .doit = nl80211_testmode_do,
9926 .dumpit = nl80211_testmode_dump,
9927 .policy = nl80211_policy,
9928 .flags = GENL_ADMIN_PERM,
9929 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9930 NL80211_FLAG_NEED_RTNL,
9934 .cmd = NL80211_CMD_CONNECT,
9935 .doit = nl80211_connect,
9936 .policy = nl80211_policy,
9937 .flags = GENL_ADMIN_PERM,
9938 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9939 NL80211_FLAG_NEED_RTNL,
9942 .cmd = NL80211_CMD_DISCONNECT,
9943 .doit = nl80211_disconnect,
9944 .policy = nl80211_policy,
9945 .flags = GENL_ADMIN_PERM,
9946 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9947 NL80211_FLAG_NEED_RTNL,
9950 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
9951 .doit = nl80211_wiphy_netns,
9952 .policy = nl80211_policy,
9953 .flags = GENL_ADMIN_PERM,
9954 .internal_flags = NL80211_FLAG_NEED_WIPHY |
9955 NL80211_FLAG_NEED_RTNL,
9958 .cmd = NL80211_CMD_GET_SURVEY,
9959 .policy = nl80211_policy,
9960 .dumpit = nl80211_dump_survey,
9963 .cmd = NL80211_CMD_SET_PMKSA,
9964 .doit = nl80211_setdel_pmksa,
9965 .policy = nl80211_policy,
9966 .flags = GENL_ADMIN_PERM,
9967 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9968 NL80211_FLAG_NEED_RTNL,
9971 .cmd = NL80211_CMD_DEL_PMKSA,
9972 .doit = nl80211_setdel_pmksa,
9973 .policy = nl80211_policy,
9974 .flags = GENL_ADMIN_PERM,
9975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9976 NL80211_FLAG_NEED_RTNL,
9979 .cmd = NL80211_CMD_FLUSH_PMKSA,
9980 .doit = nl80211_flush_pmksa,
9981 .policy = nl80211_policy,
9982 .flags = GENL_ADMIN_PERM,
9983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
9984 NL80211_FLAG_NEED_RTNL,
9987 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
9988 .doit = nl80211_remain_on_channel,
9989 .policy = nl80211_policy,
9990 .flags = GENL_ADMIN_PERM,
9991 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
9992 NL80211_FLAG_NEED_RTNL,
9995 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
9996 .doit = nl80211_cancel_remain_on_channel,
9997 .policy = nl80211_policy,
9998 .flags = GENL_ADMIN_PERM,
9999 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10000 NL80211_FLAG_NEED_RTNL,
10003 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10004 .doit = nl80211_set_tx_bitrate_mask,
10005 .policy = nl80211_policy,
10006 .flags = GENL_ADMIN_PERM,
10007 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10008 NL80211_FLAG_NEED_RTNL,
10011 .cmd = NL80211_CMD_REGISTER_FRAME,
10012 .doit = nl80211_register_mgmt,
10013 .policy = nl80211_policy,
10014 .flags = GENL_ADMIN_PERM,
10015 .internal_flags = NL80211_FLAG_NEED_WDEV |
10016 NL80211_FLAG_NEED_RTNL,
10019 .cmd = NL80211_CMD_FRAME,
10020 .doit = nl80211_tx_mgmt,
10021 .policy = nl80211_policy,
10022 .flags = GENL_ADMIN_PERM,
10023 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10024 NL80211_FLAG_NEED_RTNL,
10027 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10028 .doit = nl80211_tx_mgmt_cancel_wait,
10029 .policy = nl80211_policy,
10030 .flags = GENL_ADMIN_PERM,
10031 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10032 NL80211_FLAG_NEED_RTNL,
10035 .cmd = NL80211_CMD_SET_POWER_SAVE,
10036 .doit = nl80211_set_power_save,
10037 .policy = nl80211_policy,
10038 .flags = GENL_ADMIN_PERM,
10039 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10040 NL80211_FLAG_NEED_RTNL,
10043 .cmd = NL80211_CMD_GET_POWER_SAVE,
10044 .doit = nl80211_get_power_save,
10045 .policy = nl80211_policy,
10046 /* can be retrieved by unprivileged users */
10047 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10048 NL80211_FLAG_NEED_RTNL,
10051 .cmd = NL80211_CMD_SET_CQM,
10052 .doit = nl80211_set_cqm,
10053 .policy = nl80211_policy,
10054 .flags = GENL_ADMIN_PERM,
10055 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10056 NL80211_FLAG_NEED_RTNL,
10059 .cmd = NL80211_CMD_SET_CHANNEL,
10060 .doit = nl80211_set_channel,
10061 .policy = nl80211_policy,
10062 .flags = GENL_ADMIN_PERM,
10063 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10064 NL80211_FLAG_NEED_RTNL,
10067 .cmd = NL80211_CMD_SET_WDS_PEER,
10068 .doit = nl80211_set_wds_peer,
10069 .policy = nl80211_policy,
10070 .flags = GENL_ADMIN_PERM,
10071 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10072 NL80211_FLAG_NEED_RTNL,
10075 .cmd = NL80211_CMD_JOIN_MESH,
10076 .doit = nl80211_join_mesh,
10077 .policy = nl80211_policy,
10078 .flags = GENL_ADMIN_PERM,
10079 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10080 NL80211_FLAG_NEED_RTNL,
10083 .cmd = NL80211_CMD_LEAVE_MESH,
10084 .doit = nl80211_leave_mesh,
10085 .policy = nl80211_policy,
10086 .flags = GENL_ADMIN_PERM,
10087 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10088 NL80211_FLAG_NEED_RTNL,
10092 .cmd = NL80211_CMD_GET_WOWLAN,
10093 .doit = nl80211_get_wowlan,
10094 .policy = nl80211_policy,
10095 /* can be retrieved by unprivileged users */
10096 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10097 NL80211_FLAG_NEED_RTNL,
10100 .cmd = NL80211_CMD_SET_WOWLAN,
10101 .doit = nl80211_set_wowlan,
10102 .policy = nl80211_policy,
10103 .flags = GENL_ADMIN_PERM,
10104 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10105 NL80211_FLAG_NEED_RTNL,
10109 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10110 .doit = nl80211_set_rekey_data,
10111 .policy = nl80211_policy,
10112 .flags = GENL_ADMIN_PERM,
10113 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10114 NL80211_FLAG_NEED_RTNL |
10115 NL80211_FLAG_CLEAR_SKB,
10118 .cmd = NL80211_CMD_TDLS_MGMT,
10119 .doit = nl80211_tdls_mgmt,
10120 .policy = nl80211_policy,
10121 .flags = GENL_ADMIN_PERM,
10122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10123 NL80211_FLAG_NEED_RTNL,
10126 .cmd = NL80211_CMD_TDLS_OPER,
10127 .doit = nl80211_tdls_oper,
10128 .policy = nl80211_policy,
10129 .flags = GENL_ADMIN_PERM,
10130 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10131 NL80211_FLAG_NEED_RTNL,
10134 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
10135 .doit = nl80211_register_unexpected_frame,
10136 .policy = nl80211_policy,
10137 .flags = GENL_ADMIN_PERM,
10138 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10139 NL80211_FLAG_NEED_RTNL,
10142 .cmd = NL80211_CMD_PROBE_CLIENT,
10143 .doit = nl80211_probe_client,
10144 .policy = nl80211_policy,
10145 .flags = GENL_ADMIN_PERM,
10146 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10147 NL80211_FLAG_NEED_RTNL,
10150 .cmd = NL80211_CMD_REGISTER_BEACONS,
10151 .doit = nl80211_register_beacons,
10152 .policy = nl80211_policy,
10153 .flags = GENL_ADMIN_PERM,
10154 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10155 NL80211_FLAG_NEED_RTNL,
10158 .cmd = NL80211_CMD_SET_NOACK_MAP,
10159 .doit = nl80211_set_noack_map,
10160 .policy = nl80211_policy,
10161 .flags = GENL_ADMIN_PERM,
10162 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10163 NL80211_FLAG_NEED_RTNL,
10166 .cmd = NL80211_CMD_START_P2P_DEVICE,
10167 .doit = nl80211_start_p2p_device,
10168 .policy = nl80211_policy,
10169 .flags = GENL_ADMIN_PERM,
10170 .internal_flags = NL80211_FLAG_NEED_WDEV |
10171 NL80211_FLAG_NEED_RTNL,
10174 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10175 .doit = nl80211_stop_p2p_device,
10176 .policy = nl80211_policy,
10177 .flags = GENL_ADMIN_PERM,
10178 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10179 NL80211_FLAG_NEED_RTNL,
10182 .cmd = NL80211_CMD_SET_MCAST_RATE,
10183 .doit = nl80211_set_mcast_rate,
10184 .policy = nl80211_policy,
10185 .flags = GENL_ADMIN_PERM,
10186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10187 NL80211_FLAG_NEED_RTNL,
10190 .cmd = NL80211_CMD_SET_MAC_ACL,
10191 .doit = nl80211_set_mac_acl,
10192 .policy = nl80211_policy,
10193 .flags = GENL_ADMIN_PERM,
10194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10195 NL80211_FLAG_NEED_RTNL,
10198 .cmd = NL80211_CMD_RADAR_DETECT,
10199 .doit = nl80211_start_radar_detection,
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_GET_PROTOCOL_FEATURES,
10207 .doit = nl80211_get_protocol_features,
10208 .policy = nl80211_policy,
10211 .cmd = NL80211_CMD_UPDATE_FT_IES,
10212 .doit = nl80211_update_ft_ies,
10213 .policy = nl80211_policy,
10214 .flags = GENL_ADMIN_PERM,
10215 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10216 NL80211_FLAG_NEED_RTNL,
10219 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10220 .doit = nl80211_crit_protocol_start,
10221 .policy = nl80211_policy,
10222 .flags = GENL_ADMIN_PERM,
10223 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10224 NL80211_FLAG_NEED_RTNL,
10227 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10228 .doit = nl80211_crit_protocol_stop,
10229 .policy = nl80211_policy,
10230 .flags = GENL_ADMIN_PERM,
10231 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10232 NL80211_FLAG_NEED_RTNL,
10235 .cmd = NL80211_CMD_GET_COALESCE,
10236 .doit = nl80211_get_coalesce,
10237 .policy = nl80211_policy,
10238 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10239 NL80211_FLAG_NEED_RTNL,
10242 .cmd = NL80211_CMD_SET_COALESCE,
10243 .doit = nl80211_set_coalesce,
10244 .policy = nl80211_policy,
10245 .flags = GENL_ADMIN_PERM,
10246 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10247 NL80211_FLAG_NEED_RTNL,
10250 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10251 .doit = nl80211_channel_switch,
10252 .policy = nl80211_policy,
10253 .flags = GENL_ADMIN_PERM,
10254 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10255 NL80211_FLAG_NEED_RTNL,
10258 .cmd = NL80211_CMD_VENDOR,
10259 .doit = nl80211_vendor_cmd,
10260 .policy = nl80211_policy,
10261 .flags = GENL_ADMIN_PERM,
10262 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10263 NL80211_FLAG_NEED_RTNL,
10266 .cmd = NL80211_CMD_SET_QOS_MAP,
10267 .doit = nl80211_set_qos_map,
10268 .policy = nl80211_policy,
10269 .flags = GENL_ADMIN_PERM,
10270 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10271 NL80211_FLAG_NEED_RTNL,
10274 .cmd = NL80211_CMD_ADD_TX_TS,
10275 .doit = nl80211_add_tx_ts,
10276 .policy = nl80211_policy,
10277 .flags = GENL_ADMIN_PERM,
10278 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10279 NL80211_FLAG_NEED_RTNL,
10282 .cmd = NL80211_CMD_DEL_TX_TS,
10283 .doit = nl80211_del_tx_ts,
10284 .policy = nl80211_policy,
10285 .flags = GENL_ADMIN_PERM,
10286 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10287 NL80211_FLAG_NEED_RTNL,
10291 /* notification functions */
10293 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
10294 enum nl80211_commands cmd)
10296 struct sk_buff *msg;
10297 struct nl80211_dump_wiphy_state state = {};
10299 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
10300 cmd != NL80211_CMD_DEL_WIPHY);
10302 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10306 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
10311 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10312 NL80211_MCGRP_CONFIG, GFP_KERNEL);
10315 static int nl80211_add_scan_req(struct sk_buff *msg,
10316 struct cfg80211_registered_device *rdev)
10318 struct cfg80211_scan_request *req = rdev->scan_req;
10319 struct nlattr *nest;
10325 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
10327 goto nla_put_failure;
10328 for (i = 0; i < req->n_ssids; i++) {
10329 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
10330 goto nla_put_failure;
10332 nla_nest_end(msg, nest);
10334 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
10336 goto nla_put_failure;
10337 for (i = 0; i < req->n_channels; i++) {
10338 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
10339 goto nla_put_failure;
10341 nla_nest_end(msg, nest);
10344 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
10345 goto nla_put_failure;
10348 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
10349 goto nla_put_failure;
10356 static int nl80211_send_scan_msg(struct sk_buff *msg,
10357 struct cfg80211_registered_device *rdev,
10358 struct wireless_dev *wdev,
10359 u32 portid, u32 seq, int flags,
10364 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10368 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10369 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
10370 wdev->netdev->ifindex)) ||
10371 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
10372 goto nla_put_failure;
10374 /* ignore errors and send incomplete event anyway */
10375 nl80211_add_scan_req(msg, rdev);
10377 return genlmsg_end(msg, hdr);
10380 genlmsg_cancel(msg, hdr);
10385 nl80211_send_sched_scan_msg(struct sk_buff *msg,
10386 struct cfg80211_registered_device *rdev,
10387 struct net_device *netdev,
10388 u32 portid, u32 seq, int flags, u32 cmd)
10392 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
10396 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10397 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
10398 goto nla_put_failure;
10400 return genlmsg_end(msg, hdr);
10403 genlmsg_cancel(msg, hdr);
10407 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
10408 struct wireless_dev *wdev)
10410 struct sk_buff *msg;
10412 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10416 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10417 NL80211_CMD_TRIGGER_SCAN) < 0) {
10422 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10423 NL80211_MCGRP_SCAN, GFP_KERNEL);
10426 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
10427 struct wireless_dev *wdev, bool aborted)
10429 struct sk_buff *msg;
10431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10435 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
10436 aborted ? NL80211_CMD_SCAN_ABORTED :
10437 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
10445 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
10446 struct sk_buff *msg)
10451 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10452 NL80211_MCGRP_SCAN, GFP_KERNEL);
10455 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
10456 struct net_device *netdev)
10458 struct sk_buff *msg;
10460 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10464 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
10465 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
10470 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10471 NL80211_MCGRP_SCAN, GFP_KERNEL);
10474 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
10475 struct net_device *netdev, u32 cmd)
10477 struct sk_buff *msg;
10479 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10483 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
10488 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10489 NL80211_MCGRP_SCAN, GFP_KERNEL);
10493 * This can happen on global regulatory changes or device specific settings
10494 * based on custom world regulatory domains.
10496 void nl80211_send_reg_change_event(struct regulatory_request *request)
10498 struct sk_buff *msg;
10501 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10505 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_CHANGE);
10511 /* Userspace can always count this one always being set */
10512 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
10513 goto nla_put_failure;
10515 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
10516 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10517 NL80211_REGDOM_TYPE_WORLD))
10518 goto nla_put_failure;
10519 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
10520 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10521 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
10522 goto nla_put_failure;
10523 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
10524 request->intersect) {
10525 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10526 NL80211_REGDOM_TYPE_INTERSECTION))
10527 goto nla_put_failure;
10529 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
10530 NL80211_REGDOM_TYPE_COUNTRY) ||
10531 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
10533 goto nla_put_failure;
10536 if (request->wiphy_idx != WIPHY_IDX_INVALID &&
10537 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
10538 goto nla_put_failure;
10540 genlmsg_end(msg, hdr);
10543 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10544 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10550 genlmsg_cancel(msg, hdr);
10554 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
10555 struct net_device *netdev,
10556 const u8 *buf, size_t len,
10557 enum nl80211_commands cmd, gfp_t gfp,
10560 struct sk_buff *msg;
10563 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10567 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10573 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10574 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10575 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
10576 goto nla_put_failure;
10578 if (uapsd_queues >= 0) {
10579 struct nlattr *nla_wmm =
10580 nla_nest_start(msg, NL80211_ATTR_STA_WME);
10582 goto nla_put_failure;
10584 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
10586 goto nla_put_failure;
10588 nla_nest_end(msg, nla_wmm);
10591 genlmsg_end(msg, hdr);
10593 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10594 NL80211_MCGRP_MLME, gfp);
10598 genlmsg_cancel(msg, hdr);
10602 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
10603 struct net_device *netdev, const u8 *buf,
10604 size_t len, gfp_t gfp)
10606 nl80211_send_mlme_event(rdev, netdev, buf, len,
10607 NL80211_CMD_AUTHENTICATE, gfp, -1);
10610 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
10611 struct net_device *netdev, const u8 *buf,
10612 size_t len, gfp_t gfp, int uapsd_queues)
10614 nl80211_send_mlme_event(rdev, netdev, buf, len,
10615 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
10618 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
10619 struct net_device *netdev, const u8 *buf,
10620 size_t len, gfp_t gfp)
10622 nl80211_send_mlme_event(rdev, netdev, buf, len,
10623 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
10626 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
10627 struct net_device *netdev, const u8 *buf,
10628 size_t len, gfp_t gfp)
10630 nl80211_send_mlme_event(rdev, netdev, buf, len,
10631 NL80211_CMD_DISASSOCIATE, gfp, -1);
10634 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
10637 struct wireless_dev *wdev = dev->ieee80211_ptr;
10638 struct wiphy *wiphy = wdev->wiphy;
10639 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10640 const struct ieee80211_mgmt *mgmt = (void *)buf;
10643 if (WARN_ON(len < 2))
10646 if (ieee80211_is_deauth(mgmt->frame_control))
10647 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
10649 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
10651 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
10652 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
10654 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
10656 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
10657 struct net_device *netdev, int cmd,
10658 const u8 *addr, gfp_t gfp)
10660 struct sk_buff *msg;
10663 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10667 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
10673 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10674 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10675 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
10676 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
10677 goto nla_put_failure;
10679 genlmsg_end(msg, hdr);
10681 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10682 NL80211_MCGRP_MLME, gfp);
10686 genlmsg_cancel(msg, hdr);
10690 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
10691 struct net_device *netdev, const u8 *addr,
10694 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
10698 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
10699 struct net_device *netdev, const u8 *addr,
10702 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
10706 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
10707 struct net_device *netdev, const u8 *bssid,
10708 const u8 *req_ie, size_t req_ie_len,
10709 const u8 *resp_ie, size_t resp_ie_len,
10710 u16 status, gfp_t gfp)
10712 struct sk_buff *msg;
10715 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10719 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
10725 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10726 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10727 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
10728 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
10730 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10732 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10733 goto nla_put_failure;
10735 genlmsg_end(msg, hdr);
10737 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10738 NL80211_MCGRP_MLME, gfp);
10742 genlmsg_cancel(msg, hdr);
10747 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
10748 struct net_device *netdev, const u8 *bssid,
10749 const u8 *req_ie, size_t req_ie_len,
10750 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
10752 struct sk_buff *msg;
10755 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10759 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
10765 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10766 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10767 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
10769 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
10771 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
10772 goto nla_put_failure;
10774 genlmsg_end(msg, hdr);
10776 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10777 NL80211_MCGRP_MLME, gfp);
10781 genlmsg_cancel(msg, hdr);
10786 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
10787 struct net_device *netdev, u16 reason,
10788 const u8 *ie, size_t ie_len, bool from_ap)
10790 struct sk_buff *msg;
10793 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10797 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
10803 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10804 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10805 (from_ap && reason &&
10806 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
10808 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
10809 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
10810 goto nla_put_failure;
10812 genlmsg_end(msg, hdr);
10814 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10815 NL80211_MCGRP_MLME, GFP_KERNEL);
10819 genlmsg_cancel(msg, hdr);
10824 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
10825 struct net_device *netdev, const u8 *bssid,
10828 struct sk_buff *msg;
10831 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10835 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
10841 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10842 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10843 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
10844 goto nla_put_failure;
10846 genlmsg_end(msg, hdr);
10848 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10849 NL80211_MCGRP_MLME, gfp);
10853 genlmsg_cancel(msg, hdr);
10857 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
10858 const u8* ie, u8 ie_len, gfp_t gfp)
10860 struct wireless_dev *wdev = dev->ieee80211_ptr;
10861 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
10862 struct sk_buff *msg;
10865 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
10868 trace_cfg80211_notify_new_peer_candidate(dev, addr);
10870 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10874 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
10880 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10881 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
10882 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
10884 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
10885 goto nla_put_failure;
10887 genlmsg_end(msg, hdr);
10889 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10890 NL80211_MCGRP_MLME, gfp);
10894 genlmsg_cancel(msg, hdr);
10897 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
10899 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
10900 struct net_device *netdev, const u8 *addr,
10901 enum nl80211_key_type key_type, int key_id,
10902 const u8 *tsc, gfp_t gfp)
10904 struct sk_buff *msg;
10907 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
10911 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
10917 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10918 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
10919 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
10920 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
10922 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
10923 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
10924 goto nla_put_failure;
10926 genlmsg_end(msg, hdr);
10928 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
10929 NL80211_MCGRP_MLME, gfp);
10933 genlmsg_cancel(msg, hdr);
10937 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
10938 struct ieee80211_channel *channel_before,
10939 struct ieee80211_channel *channel_after)
10941 struct sk_buff *msg;
10943 struct nlattr *nl_freq;
10945 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
10949 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
10956 * Since we are applying the beacon hint to a wiphy we know its
10957 * wiphy_idx is valid
10959 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
10960 goto nla_put_failure;
10963 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
10965 goto nla_put_failure;
10966 if (nl80211_msg_put_channel(msg, channel_before, false))
10967 goto nla_put_failure;
10968 nla_nest_end(msg, nl_freq);
10971 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
10973 goto nla_put_failure;
10974 if (nl80211_msg_put_channel(msg, channel_after, false))
10975 goto nla_put_failure;
10976 nla_nest_end(msg, nl_freq);
10978 genlmsg_end(msg, hdr);
10981 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
10982 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
10988 genlmsg_cancel(msg, hdr);
10992 static void nl80211_send_remain_on_chan_event(
10993 int cmd, struct cfg80211_registered_device *rdev,
10994 struct wireless_dev *wdev, u64 cookie,
10995 struct ieee80211_channel *chan,
10996 unsigned int duration, gfp_t gfp)
10998 struct sk_buff *msg;
11001 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11005 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11011 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11012 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11013 wdev->netdev->ifindex)) ||
11014 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11015 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
11016 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11017 NL80211_CHAN_NO_HT) ||
11018 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11019 goto nla_put_failure;
11021 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11022 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11023 goto nla_put_failure;
11025 genlmsg_end(msg, hdr);
11027 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11028 NL80211_MCGRP_MLME, gfp);
11032 genlmsg_cancel(msg, hdr);
11036 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11037 struct ieee80211_channel *chan,
11038 unsigned int duration, gfp_t gfp)
11040 struct wiphy *wiphy = wdev->wiphy;
11041 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11043 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
11044 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
11045 rdev, wdev, cookie, chan,
11048 EXPORT_SYMBOL(cfg80211_ready_on_channel);
11050 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11051 struct ieee80211_channel *chan,
11054 struct wiphy *wiphy = wdev->wiphy;
11055 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11057 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
11058 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11059 rdev, wdev, cookie, chan, 0, gfp);
11061 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
11063 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11064 struct station_info *sinfo, gfp_t gfp)
11066 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11067 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11068 struct sk_buff *msg;
11070 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11072 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11076 if (nl80211_send_station(msg, 0, 0, 0,
11077 rdev, dev, mac_addr, sinfo) < 0) {
11082 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11083 NL80211_MCGRP_MLME, gfp);
11085 EXPORT_SYMBOL(cfg80211_new_sta);
11087 void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
11089 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11090 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11091 struct sk_buff *msg;
11094 trace_cfg80211_del_sta(dev, mac_addr);
11096 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11100 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DEL_STATION);
11106 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11107 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
11108 goto nla_put_failure;
11110 genlmsg_end(msg, hdr);
11112 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11113 NL80211_MCGRP_MLME, gfp);
11117 genlmsg_cancel(msg, hdr);
11120 EXPORT_SYMBOL(cfg80211_del_sta);
11122 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11123 enum nl80211_connect_failed_reason reason,
11126 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11127 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11128 struct sk_buff *msg;
11131 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11135 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11141 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11142 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11143 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11144 goto nla_put_failure;
11146 genlmsg_end(msg, hdr);
11148 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11149 NL80211_MCGRP_MLME, gfp);
11153 genlmsg_cancel(msg, hdr);
11156 EXPORT_SYMBOL(cfg80211_conn_failed);
11158 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11159 const u8 *addr, gfp_t gfp)
11161 struct wireless_dev *wdev = dev->ieee80211_ptr;
11162 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11163 struct sk_buff *msg;
11165 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
11170 msg = nlmsg_new(100, gfp);
11174 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11180 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11181 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11182 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11183 goto nla_put_failure;
11185 genlmsg_end(msg, hdr);
11186 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11190 genlmsg_cancel(msg, hdr);
11195 bool cfg80211_rx_spurious_frame(struct net_device *dev,
11196 const u8 *addr, gfp_t gfp)
11198 struct wireless_dev *wdev = dev->ieee80211_ptr;
11201 trace_cfg80211_rx_spurious_frame(dev, addr);
11203 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11204 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11205 trace_cfg80211_return_bool(false);
11208 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11210 trace_cfg80211_return_bool(ret);
11213 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11215 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11216 const u8 *addr, gfp_t gfp)
11218 struct wireless_dev *wdev = dev->ieee80211_ptr;
11221 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11223 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11224 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11225 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11226 trace_cfg80211_return_bool(false);
11229 ret = __nl80211_unexpected_frame(dev,
11230 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
11232 trace_cfg80211_return_bool(ret);
11235 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
11237 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
11238 struct wireless_dev *wdev, u32 nlportid,
11239 int freq, int sig_dbm,
11240 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
11242 struct net_device *netdev = wdev->netdev;
11243 struct sk_buff *msg;
11246 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11250 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11256 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11257 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11258 netdev->ifindex)) ||
11259 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11260 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
11262 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11263 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11265 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
11266 goto nla_put_failure;
11268 genlmsg_end(msg, hdr);
11270 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11273 genlmsg_cancel(msg, hdr);
11278 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
11279 const u8 *buf, size_t len, bool ack, gfp_t gfp)
11281 struct wiphy *wiphy = wdev->wiphy;
11282 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11283 struct net_device *netdev = wdev->netdev;
11284 struct sk_buff *msg;
11287 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
11289 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11293 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
11299 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11300 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11301 netdev->ifindex)) ||
11302 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11303 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
11304 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11305 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
11306 goto nla_put_failure;
11308 genlmsg_end(msg, hdr);
11310 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11311 NL80211_MCGRP_MLME, gfp);
11315 genlmsg_cancel(msg, hdr);
11318 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
11320 void cfg80211_cqm_rssi_notify(struct net_device *dev,
11321 enum nl80211_cqm_rssi_threshold_event rssi_event,
11324 struct wireless_dev *wdev = dev->ieee80211_ptr;
11325 struct wiphy *wiphy = wdev->wiphy;
11326 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11327 struct sk_buff *msg;
11328 struct nlattr *pinfoattr;
11331 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
11333 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11337 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11343 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11344 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
11345 goto nla_put_failure;
11347 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11349 goto nla_put_failure;
11351 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
11353 goto nla_put_failure;
11355 nla_nest_end(msg, pinfoattr);
11357 genlmsg_end(msg, hdr);
11359 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11360 NL80211_MCGRP_MLME, gfp);
11364 genlmsg_cancel(msg, hdr);
11367 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
11369 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
11370 struct net_device *netdev, const u8 *bssid,
11371 const u8 *replay_ctr, gfp_t gfp)
11373 struct sk_buff *msg;
11374 struct nlattr *rekey_attr;
11377 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11381 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
11387 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11388 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11389 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11390 goto nla_put_failure;
11392 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
11394 goto nla_put_failure;
11396 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
11397 NL80211_REPLAY_CTR_LEN, replay_ctr))
11398 goto nla_put_failure;
11400 nla_nest_end(msg, rekey_attr);
11402 genlmsg_end(msg, hdr);
11404 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11405 NL80211_MCGRP_MLME, gfp);
11409 genlmsg_cancel(msg, hdr);
11413 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
11414 const u8 *replay_ctr, gfp_t gfp)
11416 struct wireless_dev *wdev = dev->ieee80211_ptr;
11417 struct wiphy *wiphy = wdev->wiphy;
11418 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11420 trace_cfg80211_gtk_rekey_notify(dev, bssid);
11421 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
11423 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
11426 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
11427 struct net_device *netdev, int index,
11428 const u8 *bssid, bool preauth, gfp_t gfp)
11430 struct sk_buff *msg;
11431 struct nlattr *attr;
11434 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11438 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
11444 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11445 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11446 goto nla_put_failure;
11448 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
11450 goto nla_put_failure;
11452 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
11453 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
11455 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
11456 goto nla_put_failure;
11458 nla_nest_end(msg, attr);
11460 genlmsg_end(msg, hdr);
11462 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11463 NL80211_MCGRP_MLME, gfp);
11467 genlmsg_cancel(msg, hdr);
11471 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
11472 const u8 *bssid, bool preauth, gfp_t gfp)
11474 struct wireless_dev *wdev = dev->ieee80211_ptr;
11475 struct wiphy *wiphy = wdev->wiphy;
11476 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11478 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
11479 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
11481 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
11483 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
11484 struct net_device *netdev,
11485 struct cfg80211_chan_def *chandef,
11488 struct sk_buff *msg;
11491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11495 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CH_SWITCH_NOTIFY);
11501 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11502 goto nla_put_failure;
11504 if (nl80211_send_chandef(msg, chandef))
11505 goto nla_put_failure;
11507 genlmsg_end(msg, hdr);
11509 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11510 NL80211_MCGRP_MLME, gfp);
11514 genlmsg_cancel(msg, hdr);
11518 void cfg80211_ch_switch_notify(struct net_device *dev,
11519 struct cfg80211_chan_def *chandef)
11521 struct wireless_dev *wdev = dev->ieee80211_ptr;
11522 struct wiphy *wiphy = wdev->wiphy;
11523 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11525 ASSERT_WDEV_LOCK(wdev);
11527 trace_cfg80211_ch_switch_notify(dev, chandef);
11529 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11530 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11531 wdev->iftype != NL80211_IFTYPE_ADHOC &&
11532 wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11535 wdev->chandef = *chandef;
11536 wdev->preset_chandef = *chandef;
11537 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL);
11539 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
11541 void cfg80211_cqm_txe_notify(struct net_device *dev,
11542 const u8 *peer, u32 num_packets,
11543 u32 rate, u32 intvl, gfp_t gfp)
11545 struct wireless_dev *wdev = dev->ieee80211_ptr;
11546 struct wiphy *wiphy = wdev->wiphy;
11547 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11548 struct sk_buff *msg;
11549 struct nlattr *pinfoattr;
11552 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11556 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11562 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11563 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11564 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11565 goto nla_put_failure;
11567 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11569 goto nla_put_failure;
11571 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
11572 goto nla_put_failure;
11574 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
11575 goto nla_put_failure;
11577 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
11578 goto nla_put_failure;
11580 nla_nest_end(msg, pinfoattr);
11582 genlmsg_end(msg, hdr);
11584 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11585 NL80211_MCGRP_MLME, gfp);
11589 genlmsg_cancel(msg, hdr);
11592 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
11595 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
11596 const struct cfg80211_chan_def *chandef,
11597 enum nl80211_radar_event event,
11598 struct net_device *netdev, gfp_t gfp)
11600 struct sk_buff *msg;
11603 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11607 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
11613 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
11614 goto nla_put_failure;
11616 /* NOP and radar events don't need a netdev parameter */
11618 struct wireless_dev *wdev = netdev->ieee80211_ptr;
11620 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11621 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11622 goto nla_put_failure;
11625 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
11626 goto nla_put_failure;
11628 if (nl80211_send_chandef(msg, chandef))
11629 goto nla_put_failure;
11631 genlmsg_end(msg, hdr);
11633 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11634 NL80211_MCGRP_MLME, gfp);
11638 genlmsg_cancel(msg, hdr);
11642 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
11643 const u8 *peer, u32 num_packets, gfp_t gfp)
11645 struct wireless_dev *wdev = dev->ieee80211_ptr;
11646 struct wiphy *wiphy = wdev->wiphy;
11647 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11648 struct sk_buff *msg;
11649 struct nlattr *pinfoattr;
11652 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
11654 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11658 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
11664 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11665 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11666 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer))
11667 goto nla_put_failure;
11669 pinfoattr = nla_nest_start(msg, NL80211_ATTR_CQM);
11671 goto nla_put_failure;
11673 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
11674 goto nla_put_failure;
11676 nla_nest_end(msg, pinfoattr);
11678 genlmsg_end(msg, hdr);
11680 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11681 NL80211_MCGRP_MLME, gfp);
11685 genlmsg_cancel(msg, hdr);
11688 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
11690 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
11691 u64 cookie, bool acked, gfp_t gfp)
11693 struct wireless_dev *wdev = dev->ieee80211_ptr;
11694 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11695 struct sk_buff *msg;
11698 trace_cfg80211_probe_status(dev, addr, cookie, acked);
11700 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11705 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
11711 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11712 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11714 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
11715 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
11716 goto nla_put_failure;
11718 genlmsg_end(msg, hdr);
11720 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11721 NL80211_MCGRP_MLME, gfp);
11725 genlmsg_cancel(msg, hdr);
11728 EXPORT_SYMBOL(cfg80211_probe_status);
11730 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
11731 const u8 *frame, size_t len,
11732 int freq, int sig_dbm)
11734 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11735 struct sk_buff *msg;
11737 struct cfg80211_beacon_registration *reg;
11739 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
11741 spin_lock_bh(&rdev->beacon_registrations_lock);
11742 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
11743 msg = nlmsg_new(len + 100, GFP_ATOMIC);
11745 spin_unlock_bh(&rdev->beacon_registrations_lock);
11749 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
11751 goto nla_put_failure;
11753 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11755 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
11757 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
11758 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
11759 goto nla_put_failure;
11761 genlmsg_end(msg, hdr);
11763 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
11765 spin_unlock_bh(&rdev->beacon_registrations_lock);
11769 spin_unlock_bh(&rdev->beacon_registrations_lock);
11771 genlmsg_cancel(msg, hdr);
11774 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
11777 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
11778 struct cfg80211_wowlan_wakeup *wakeup,
11781 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11782 struct sk_buff *msg;
11786 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
11789 size += wakeup->packet_present_len;
11791 msg = nlmsg_new(size, gfp);
11795 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
11799 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11800 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11803 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11804 wdev->netdev->ifindex))
11808 struct nlattr *reasons;
11810 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
11814 if (wakeup->disconnect &&
11815 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
11817 if (wakeup->magic_pkt &&
11818 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
11820 if (wakeup->gtk_rekey_failure &&
11821 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
11823 if (wakeup->eap_identity_req &&
11824 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
11826 if (wakeup->four_way_handshake &&
11827 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
11829 if (wakeup->rfkill_release &&
11830 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
11833 if (wakeup->pattern_idx >= 0 &&
11834 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
11835 wakeup->pattern_idx))
11838 if (wakeup->tcp_match &&
11839 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
11842 if (wakeup->tcp_connlost &&
11843 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
11846 if (wakeup->tcp_nomoretokens &&
11848 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
11851 if (wakeup->packet) {
11852 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
11853 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
11855 if (!wakeup->packet_80211) {
11857 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
11859 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
11862 if (wakeup->packet_len &&
11863 nla_put_u32(msg, len_attr, wakeup->packet_len))
11866 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
11871 nla_nest_end(msg, reasons);
11874 genlmsg_end(msg, hdr);
11876 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11877 NL80211_MCGRP_MLME, gfp);
11883 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
11886 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
11887 enum nl80211_tdls_operation oper,
11888 u16 reason_code, gfp_t gfp)
11890 struct wireless_dev *wdev = dev->ieee80211_ptr;
11891 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11892 struct sk_buff *msg;
11895 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
11898 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11902 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
11908 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11909 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11910 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
11911 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
11912 (reason_code > 0 &&
11913 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
11914 goto nla_put_failure;
11916 genlmsg_end(msg, hdr);
11918 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11919 NL80211_MCGRP_MLME, gfp);
11923 genlmsg_cancel(msg, hdr);
11926 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
11928 static int nl80211_netlink_notify(struct notifier_block * nb,
11929 unsigned long state,
11932 struct netlink_notify *notify = _notify;
11933 struct cfg80211_registered_device *rdev;
11934 struct wireless_dev *wdev;
11935 struct cfg80211_beacon_registration *reg, *tmp;
11937 if (state != NETLINK_URELEASE)
11938 return NOTIFY_DONE;
11942 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
11943 bool schedule_destroy_work = false;
11945 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
11946 cfg80211_mlme_unregister_socket(wdev, notify->portid);
11948 if (wdev->owner_nlportid == notify->portid)
11949 schedule_destroy_work = true;
11952 spin_lock_bh(&rdev->beacon_registrations_lock);
11953 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
11955 if (reg->nlportid == notify->portid) {
11956 list_del(®->list);
11961 spin_unlock_bh(&rdev->beacon_registrations_lock);
11963 if (schedule_destroy_work) {
11964 struct cfg80211_iface_destroy *destroy;
11966 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
11968 destroy->nlportid = notify->portid;
11969 spin_lock(&rdev->destroy_list_lock);
11970 list_add(&destroy->list, &rdev->destroy_list);
11971 spin_unlock(&rdev->destroy_list_lock);
11972 schedule_work(&rdev->destroy_work);
11982 static struct notifier_block nl80211_netlink_notifier = {
11983 .notifier_call = nl80211_netlink_notify,
11986 void cfg80211_ft_event(struct net_device *netdev,
11987 struct cfg80211_ft_event_params *ft_event)
11989 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
11990 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11991 struct sk_buff *msg;
11994 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
11996 if (!ft_event->target_ap)
11999 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12003 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
12007 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12008 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12009 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12012 if (ft_event->ies &&
12013 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12015 if (ft_event->ric_ies &&
12016 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12017 ft_event->ric_ies))
12020 genlmsg_end(msg, hdr);
12022 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12023 NL80211_MCGRP_MLME, GFP_KERNEL);
12028 EXPORT_SYMBOL(cfg80211_ft_event);
12030 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12032 struct cfg80211_registered_device *rdev;
12033 struct sk_buff *msg;
12037 rdev = wiphy_to_rdev(wdev->wiphy);
12038 if (!rdev->crit_proto_nlportid)
12041 nlportid = rdev->crit_proto_nlportid;
12042 rdev->crit_proto_nlportid = 0;
12044 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12048 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12050 goto nla_put_failure;
12052 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12053 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12054 goto nla_put_failure;
12056 genlmsg_end(msg, hdr);
12058 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12063 genlmsg_cancel(msg, hdr);
12067 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12069 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12071 struct wiphy *wiphy = wdev->wiphy;
12072 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12073 struct sk_buff *msg;
12076 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12080 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12084 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12085 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12086 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12089 genlmsg_end(msg, hdr);
12091 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12092 NL80211_MCGRP_MLME, GFP_KERNEL);
12098 /* initialisation/exit functions */
12100 int nl80211_init(void)
12104 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12109 err = netlink_register_notifier(&nl80211_netlink_notifier);
12115 genl_unregister_family(&nl80211_fam);
12119 void nl80211_exit(void)
12121 netlink_unregister_notifier(&nl80211_netlink_notifier);
12122 genl_unregister_family(&nl80211_fam);