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
6 * Copyright 2015 Intel Deutschland GmbH
10 #include <linux/module.h>
11 #include <linux/err.h>
12 #include <linux/slab.h>
13 #include <linux/list.h>
14 #include <linux/if_ether.h>
15 #include <linux/ieee80211.h>
16 #include <linux/nl80211.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/netlink.h>
19 #include <linux/etherdevice.h>
20 #include <net/net_namespace.h>
21 #include <net/genetlink.h>
22 #include <net/cfg80211.h>
24 #include <net/inet_connection_sock.h>
30 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
35 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
38 struct genl_info *info);
40 /* the netlink family */
41 static struct genl_family nl80211_fam = {
42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
46 .maxattr = NL80211_ATTR_MAX,
48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
52 /* multicast groups */
53 enum nl80211_multicast_groups {
56 NL80211_MCGRP_REGULATORY,
59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
62 static const struct genl_multicast_group nl80211_mcgrps[] = {
63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
68 #ifdef CONFIG_NL80211_TESTMODE
69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
73 /* returns ERR_PTR values */
74 static struct wireless_dev *
75 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
100 if (wiphy_net(&rdev->wiphy) != netns)
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
106 list_for_each_entry(wdev, &rdev->wdev_list, list) {
107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
124 return ERR_PTR(-ENODEV);
127 static struct cfg80211_registered_device *
128 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
135 if (!attrs[NL80211_ATTR_WIPHY] &&
136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
138 return ERR_PTR(-EINVAL);
140 if (attrs[NL80211_ATTR_WIPHY])
141 rdev = cfg80211_rdev_by_wiphy_idx(
142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
151 /* make sure wdev exists */
152 list_for_each_entry(wdev, &tmp->wdev_list, list) {
153 if (wdev->identifier != (u32)wdev_id)
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
170 netdev = __dev_get_by_index(netns, ifindex);
172 if (netdev->ieee80211_ptr)
174 netdev->ieee80211_ptr->wiphy);
178 /* not wireless device -- return error */
180 return ERR_PTR(-EINVAL);
182 /* mismatch -- return error */
183 if (rdev && tmp != rdev)
184 return ERR_PTR(-EINVAL);
191 return ERR_PTR(-ENODEV);
193 if (netns != wiphy_net(&rdev->wiphy))
194 return ERR_PTR(-ENODEV);
200 * This function returns a pointer to the driver
201 * that the genl_info item that is passed refers to.
203 * The result of this can be a PTR_ERR and hence must
204 * be checked with IS_ERR() for errors.
206 static struct cfg80211_registered_device *
207 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
209 return __cfg80211_rdev_from_attrs(netns, info->attrs);
212 /* policy for the attributes */
213 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
214 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
217 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
219 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
220 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
221 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
225 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
230 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
232 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
236 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
237 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
239 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
240 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
241 .len = WLAN_MAX_KEY_LEN },
242 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
243 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
244 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
245 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
246 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
248 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
249 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
254 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
256 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
258 .len = NL80211_MAX_SUPP_RATES },
259 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
260 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
261 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
262 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
263 .len = IEEE80211_MAX_MESH_ID_LEN },
264 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
266 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
267 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
273 .len = NL80211_MAX_SUPP_RATES },
274 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
276 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
277 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
279 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
281 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
282 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
283 .len = IEEE80211_MAX_DATA_LEN },
284 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
287 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_SSID_LEN },
289 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
290 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
291 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
292 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
293 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
294 [NL80211_ATTR_STA_FLAGS2] = {
295 .len = sizeof(struct nl80211_sta_flag_update),
297 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
299 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
301 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
302 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
303 [NL80211_ATTR_PID] = { .type = NLA_U32 },
304 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
305 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
306 .len = WLAN_PMKID_LEN },
307 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
308 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
309 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
310 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
311 .len = IEEE80211_MAX_DATA_LEN },
312 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
313 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
314 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
315 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
316 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
317 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
319 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
320 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
322 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
323 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
324 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
325 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
326 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
327 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
328 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
329 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
330 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
331 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
333 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
335 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
336 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
337 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
338 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
360 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
361 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
362 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
363 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
364 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
365 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
366 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
367 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
369 .len = NL80211_VHT_CAPABILITY_LEN,
371 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
372 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
373 .len = IEEE80211_MAX_DATA_LEN },
374 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
375 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
376 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
377 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
378 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
379 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
382 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
383 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
387 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
388 .len = IEEE80211_QOS_MAP_LEN_MAX },
389 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
391 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
392 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
393 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
394 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
395 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
396 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
397 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
398 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
399 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
400 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
401 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
402 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
403 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
406 /* policy for the key attributes */
407 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
408 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
409 [NL80211_KEY_IDX] = { .type = NLA_U8 },
410 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
411 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
412 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
413 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
414 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
415 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
418 /* policy for the key default flags */
419 static const struct nla_policy
420 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
421 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
422 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
425 /* policy for WoWLAN attributes */
426 static const struct nla_policy
427 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
428 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
432 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
437 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
440 static const struct nla_policy
441 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
442 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
443 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
444 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
445 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
446 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
448 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
449 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
451 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
452 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
454 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
455 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
459 /* policy for coalesce rule attributes */
460 static const struct nla_policy
461 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
462 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
463 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
464 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
467 /* policy for GTK rekey offload attributes */
468 static const struct nla_policy
469 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
470 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
471 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
472 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
475 static const struct nla_policy
476 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
477 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
478 .len = IEEE80211_MAX_SSID_LEN },
479 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
482 static const struct nla_policy
483 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
484 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
485 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
488 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
489 struct netlink_callback *cb,
490 struct cfg80211_registered_device **rdev,
491 struct wireless_dev **wdev)
498 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
499 nl80211_fam.attrbuf, nl80211_fam.maxattr,
504 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
505 nl80211_fam.attrbuf);
507 err = PTR_ERR(*wdev);
510 *rdev = wiphy_to_rdev((*wdev)->wiphy);
511 /* 0 is the first index - add 1 to parse only once */
512 cb->args[0] = (*rdev)->wiphy_idx + 1;
513 cb->args[1] = (*wdev)->identifier;
515 /* subtract the 1 again here */
516 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
517 struct wireless_dev *tmp;
523 *rdev = wiphy_to_rdev(wiphy);
526 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
527 if (tmp->identifier == cb->args[1]) {
545 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
551 static bool is_valid_ie_attr(const struct nlattr *attr)
559 pos = nla_data(attr);
580 /* message building helper */
581 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
584 /* since there is no private header just add the generic one */
585 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
588 static int nl80211_msg_put_channel(struct sk_buff *msg,
589 struct ieee80211_channel *chan,
592 /* Some channels must be completely excluded from the
593 * list to protect old user-space tools from breaking
595 if (!large && chan->flags &
596 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
601 goto nla_put_failure;
603 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
604 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
605 goto nla_put_failure;
606 if (chan->flags & IEEE80211_CHAN_NO_IR) {
607 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
608 goto nla_put_failure;
609 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
610 goto nla_put_failure;
612 if (chan->flags & IEEE80211_CHAN_RADAR) {
613 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
614 goto nla_put_failure;
618 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
620 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
622 goto nla_put_failure;
623 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
625 goto nla_put_failure;
627 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
629 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
636 goto nla_put_failure;
637 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
638 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
639 goto nla_put_failure;
640 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
641 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
642 goto nla_put_failure;
643 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
644 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
645 goto nla_put_failure;
646 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
648 goto nla_put_failure;
649 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
651 goto nla_put_failure;
652 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
654 goto nla_put_failure;
655 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
656 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
657 goto nla_put_failure;
660 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
661 DBM_TO_MBM(chan->max_power)))
662 goto nla_put_failure;
670 /* netlink command implementations */
677 bool def_uni, def_multi;
680 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
682 struct nlattr *tb[NL80211_KEY_MAX + 1];
683 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
688 k->def = !!tb[NL80211_KEY_DEFAULT];
689 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
698 if (tb[NL80211_KEY_IDX])
699 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
701 if (tb[NL80211_KEY_DATA]) {
702 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
703 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
706 if (tb[NL80211_KEY_SEQ]) {
707 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
708 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
711 if (tb[NL80211_KEY_CIPHER])
712 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
714 if (tb[NL80211_KEY_TYPE]) {
715 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
716 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
720 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
721 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
722 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
723 tb[NL80211_KEY_DEFAULT_TYPES],
724 nl80211_key_default_policy);
728 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
729 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
735 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
737 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
738 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
739 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
742 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
743 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
744 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
747 if (info->attrs[NL80211_ATTR_KEY_IDX])
748 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
750 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
751 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
753 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
754 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
763 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
764 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
769 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
771 int err = nla_parse_nested(
772 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
774 nl80211_key_default_policy);
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
785 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
789 memset(k, 0, sizeof(*k));
793 if (info->attrs[NL80211_ATTR_KEY])
794 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
796 err = nl80211_parse_key_old(info, k);
801 if (k->def && k->defmgmt)
805 if (k->def_uni || !k->def_multi)
811 if (k->idx < 4 || k->idx > 5)
814 if (k->idx < 0 || k->idx > 3)
817 if (k->idx < 0 || k->idx > 5)
825 static struct cfg80211_cached_keys *
826 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
827 struct nlattr *keys, bool *no_ht)
829 struct key_parse parse;
831 struct cfg80211_cached_keys *result;
832 int rem, err, def = 0;
834 result = kzalloc(sizeof(*result), GFP_KERNEL);
836 return ERR_PTR(-ENOMEM);
839 result->defmgmt = -1;
841 nla_for_each_nested(key, keys, rem) {
842 memset(&parse, 0, sizeof(parse));
845 err = nl80211_parse_key_new(key, &parse);
851 if (parse.idx < 0 || parse.idx > 4)
857 result->def = parse.idx;
858 if (!parse.def_uni || !parse.def_multi)
860 } else if (parse.defmgmt)
862 err = cfg80211_validate_key_settings(rdev, &parse.p,
863 parse.idx, false, NULL);
866 result->params[parse.idx].cipher = parse.p.cipher;
867 result->params[parse.idx].key_len = parse.p.key_len;
868 result->params[parse.idx].key = result->data[parse.idx];
869 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
871 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
872 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
884 static int nl80211_key_allowed(struct wireless_dev *wdev)
886 ASSERT_WDEV_LOCK(wdev);
888 switch (wdev->iftype) {
889 case NL80211_IFTYPE_AP:
890 case NL80211_IFTYPE_AP_VLAN:
891 case NL80211_IFTYPE_P2P_GO:
892 case NL80211_IFTYPE_MESH_POINT:
894 case NL80211_IFTYPE_ADHOC:
895 case NL80211_IFTYPE_STATION:
896 case NL80211_IFTYPE_P2P_CLIENT:
897 if (!wdev->current_bss)
900 case NL80211_IFTYPE_UNSPECIFIED:
901 case NL80211_IFTYPE_OCB:
902 case NL80211_IFTYPE_MONITOR:
903 case NL80211_IFTYPE_P2P_DEVICE:
904 case NL80211_IFTYPE_WDS:
905 case NUM_NL80211_IFTYPES:
912 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
915 struct ieee80211_channel *chan;
919 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
920 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
925 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
927 struct nlattr *nl_modes = nla_nest_start(msg, attr);
931 goto nla_put_failure;
935 if ((ifmodes & 1) && nla_put_flag(msg, i))
936 goto nla_put_failure;
941 nla_nest_end(msg, nl_modes);
948 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
952 struct nlattr *nl_combis;
955 nl_combis = nla_nest_start(msg,
956 NL80211_ATTR_INTERFACE_COMBINATIONS);
958 goto nla_put_failure;
960 for (i = 0; i < wiphy->n_iface_combinations; i++) {
961 const struct ieee80211_iface_combination *c;
962 struct nlattr *nl_combi, *nl_limits;
964 c = &wiphy->iface_combinations[i];
966 nl_combi = nla_nest_start(msg, i + 1);
968 goto nla_put_failure;
970 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
972 goto nla_put_failure;
974 for (j = 0; j < c->n_limits; j++) {
975 struct nlattr *nl_limit;
977 nl_limit = nla_nest_start(msg, j + 1);
979 goto nla_put_failure;
980 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
982 goto nla_put_failure;
983 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
985 goto nla_put_failure;
986 nla_nest_end(msg, nl_limit);
989 nla_nest_end(msg, nl_limits);
991 if (c->beacon_int_infra_match &&
992 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
993 goto nla_put_failure;
994 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
995 c->num_different_channels) ||
996 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
998 goto nla_put_failure;
1000 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1001 c->radar_detect_widths) ||
1002 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1003 c->radar_detect_regions)))
1004 goto nla_put_failure;
1006 nla_nest_end(msg, nl_combi);
1009 nla_nest_end(msg, nl_combis);
1017 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1018 struct sk_buff *msg)
1020 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1021 struct nlattr *nl_tcp;
1026 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1030 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1031 tcp->data_payload_max))
1034 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1035 tcp->data_payload_max))
1038 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1041 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1042 sizeof(*tcp->tok), tcp->tok))
1045 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1046 tcp->data_interval_max))
1049 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1050 tcp->wake_payload_max))
1053 nla_nest_end(msg, nl_tcp);
1057 static int nl80211_send_wowlan(struct sk_buff *msg,
1058 struct cfg80211_registered_device *rdev,
1061 struct nlattr *nl_wowlan;
1063 if (!rdev->wiphy.wowlan)
1066 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1070 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1076 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1077 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1078 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1079 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1080 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1081 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1082 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1084 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1088 if (rdev->wiphy.wowlan->n_patterns) {
1089 struct nl80211_pattern_support pat = {
1090 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1091 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1092 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1093 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1096 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1101 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1102 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1103 rdev->wiphy.wowlan->max_nd_match_sets))
1106 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1109 nla_nest_end(msg, nl_wowlan);
1115 static int nl80211_send_coalesce(struct sk_buff *msg,
1116 struct cfg80211_registered_device *rdev)
1118 struct nl80211_coalesce_rule_support rule;
1120 if (!rdev->wiphy.coalesce)
1123 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1124 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1125 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1126 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1127 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1128 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1130 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1136 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1137 struct ieee80211_supported_band *sband)
1139 struct nlattr *nl_rates, *nl_rate;
1140 struct ieee80211_rate *rate;
1144 if (sband->ht_cap.ht_supported &&
1145 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1146 sizeof(sband->ht_cap.mcs),
1147 &sband->ht_cap.mcs) ||
1148 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1149 sband->ht_cap.cap) ||
1150 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1151 sband->ht_cap.ampdu_factor) ||
1152 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1153 sband->ht_cap.ampdu_density)))
1157 if (sband->vht_cap.vht_supported &&
1158 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1159 sizeof(sband->vht_cap.vht_mcs),
1160 &sband->vht_cap.vht_mcs) ||
1161 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1162 sband->vht_cap.cap)))
1166 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1170 for (i = 0; i < sband->n_bitrates; i++) {
1171 nl_rate = nla_nest_start(msg, i);
1175 rate = &sband->bitrates[i];
1176 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1179 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1181 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1184 nla_nest_end(msg, nl_rate);
1187 nla_nest_end(msg, nl_rates);
1193 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1194 const struct ieee80211_txrx_stypes *mgmt_stypes)
1197 struct nlattr *nl_ftypes, *nl_ifs;
1198 enum nl80211_iftype ift;
1204 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1208 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1209 nl_ftypes = nla_nest_start(msg, ift);
1213 stypes = mgmt_stypes[ift].tx;
1216 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1217 (i << 4) | IEEE80211_FTYPE_MGMT))
1222 nla_nest_end(msg, nl_ftypes);
1225 nla_nest_end(msg, nl_ifs);
1227 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1231 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1232 nl_ftypes = nla_nest_start(msg, ift);
1236 stypes = mgmt_stypes[ift].rx;
1239 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1240 (i << 4) | IEEE80211_FTYPE_MGMT))
1245 nla_nest_end(msg, nl_ftypes);
1247 nla_nest_end(msg, nl_ifs);
1252 struct nl80211_dump_wiphy_state {
1255 long split_start, band_start, chan_start;
1259 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1260 enum nl80211_commands cmd,
1261 struct sk_buff *msg, u32 portid, u32 seq,
1262 int flags, struct nl80211_dump_wiphy_state *state)
1265 struct nlattr *nl_bands, *nl_band;
1266 struct nlattr *nl_freqs, *nl_freq;
1267 struct nlattr *nl_cmds;
1268 enum ieee80211_band band;
1269 struct ieee80211_channel *chan;
1271 const struct ieee80211_txrx_stypes *mgmt_stypes =
1272 rdev->wiphy.mgmt_stypes;
1275 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1279 if (WARN_ON(!state))
1282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1283 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1284 wiphy_name(&rdev->wiphy)) ||
1285 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1286 cfg80211_rdev_list_generation))
1287 goto nla_put_failure;
1289 if (cmd != NL80211_CMD_NEW_WIPHY)
1292 switch (state->split_start) {
1294 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1295 rdev->wiphy.retry_short) ||
1296 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1297 rdev->wiphy.retry_long) ||
1298 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1299 rdev->wiphy.frag_threshold) ||
1300 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1301 rdev->wiphy.rts_threshold) ||
1302 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1303 rdev->wiphy.coverage_class) ||
1304 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1305 rdev->wiphy.max_scan_ssids) ||
1306 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1307 rdev->wiphy.max_sched_scan_ssids) ||
1308 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1309 rdev->wiphy.max_scan_ie_len) ||
1310 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1311 rdev->wiphy.max_sched_scan_ie_len) ||
1312 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1313 rdev->wiphy.max_match_sets) ||
1314 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1315 rdev->wiphy.max_sched_scan_plans) ||
1316 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1317 rdev->wiphy.max_sched_scan_plan_interval) ||
1318 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1319 rdev->wiphy.max_sched_scan_plan_iterations))
1320 goto nla_put_failure;
1322 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1323 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1324 goto nla_put_failure;
1325 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1326 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1327 goto nla_put_failure;
1328 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1329 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1330 goto nla_put_failure;
1331 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1332 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1333 goto nla_put_failure;
1334 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1335 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1336 goto nla_put_failure;
1337 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1338 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1339 goto nla_put_failure;
1340 state->split_start++;
1344 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1345 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1346 rdev->wiphy.cipher_suites))
1347 goto nla_put_failure;
1349 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1350 rdev->wiphy.max_num_pmkids))
1351 goto nla_put_failure;
1353 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1354 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1355 goto nla_put_failure;
1357 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1358 rdev->wiphy.available_antennas_tx) ||
1359 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1360 rdev->wiphy.available_antennas_rx))
1361 goto nla_put_failure;
1363 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1364 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1365 rdev->wiphy.probe_resp_offload))
1366 goto nla_put_failure;
1368 if ((rdev->wiphy.available_antennas_tx ||
1369 rdev->wiphy.available_antennas_rx) &&
1370 rdev->ops->get_antenna) {
1371 u32 tx_ant = 0, rx_ant = 0;
1373 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1375 if (nla_put_u32(msg,
1376 NL80211_ATTR_WIPHY_ANTENNA_TX,
1379 NL80211_ATTR_WIPHY_ANTENNA_RX,
1381 goto nla_put_failure;
1385 state->split_start++;
1389 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1390 rdev->wiphy.interface_modes))
1391 goto nla_put_failure;
1392 state->split_start++;
1396 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1398 goto nla_put_failure;
1400 for (band = state->band_start;
1401 band < IEEE80211_NUM_BANDS; band++) {
1402 struct ieee80211_supported_band *sband;
1404 sband = rdev->wiphy.bands[band];
1409 nl_band = nla_nest_start(msg, band);
1411 goto nla_put_failure;
1413 switch (state->chan_start) {
1415 if (nl80211_send_band_rateinfo(msg, sband))
1416 goto nla_put_failure;
1417 state->chan_start++;
1421 /* add frequencies */
1422 nl_freqs = nla_nest_start(
1423 msg, NL80211_BAND_ATTR_FREQS);
1425 goto nla_put_failure;
1427 for (i = state->chan_start - 1;
1428 i < sband->n_channels;
1430 nl_freq = nla_nest_start(msg, i);
1432 goto nla_put_failure;
1434 chan = &sband->channels[i];
1436 if (nl80211_msg_put_channel(
1439 goto nla_put_failure;
1441 nla_nest_end(msg, nl_freq);
1445 if (i < sband->n_channels)
1446 state->chan_start = i + 2;
1448 state->chan_start = 0;
1449 nla_nest_end(msg, nl_freqs);
1452 nla_nest_end(msg, nl_band);
1455 /* start again here */
1456 if (state->chan_start)
1461 nla_nest_end(msg, nl_bands);
1463 if (band < IEEE80211_NUM_BANDS)
1464 state->band_start = band + 1;
1466 state->band_start = 0;
1468 /* if bands & channels are done, continue outside */
1469 if (state->band_start == 0 && state->chan_start == 0)
1470 state->split_start++;
1474 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1476 goto nla_put_failure;
1479 #define CMD(op, n) \
1481 if (rdev->ops->op) { \
1483 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1484 goto nla_put_failure; \
1488 CMD(add_virtual_intf, NEW_INTERFACE);
1489 CMD(change_virtual_intf, SET_INTERFACE);
1490 CMD(add_key, NEW_KEY);
1491 CMD(start_ap, START_AP);
1492 CMD(add_station, NEW_STATION);
1493 CMD(add_mpath, NEW_MPATH);
1494 CMD(update_mesh_config, SET_MESH_CONFIG);
1495 CMD(change_bss, SET_BSS);
1496 CMD(auth, AUTHENTICATE);
1497 CMD(assoc, ASSOCIATE);
1498 CMD(deauth, DEAUTHENTICATE);
1499 CMD(disassoc, DISASSOCIATE);
1500 CMD(join_ibss, JOIN_IBSS);
1501 CMD(join_mesh, JOIN_MESH);
1502 CMD(set_pmksa, SET_PMKSA);
1503 CMD(del_pmksa, DEL_PMKSA);
1504 CMD(flush_pmksa, FLUSH_PMKSA);
1505 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1506 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1507 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1508 CMD(mgmt_tx, FRAME);
1509 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1510 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1512 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1513 goto nla_put_failure;
1515 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1516 rdev->ops->join_mesh) {
1518 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1519 goto nla_put_failure;
1521 CMD(set_wds_peer, SET_WDS_PEER);
1522 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1523 CMD(tdls_mgmt, TDLS_MGMT);
1524 CMD(tdls_oper, TDLS_OPER);
1526 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1527 CMD(sched_scan_start, START_SCHED_SCAN);
1528 CMD(probe_client, PROBE_CLIENT);
1529 CMD(set_noack_map, SET_NOACK_MAP);
1530 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1532 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1533 goto nla_put_failure;
1535 CMD(start_p2p_device, START_P2P_DEVICE);
1536 CMD(set_mcast_rate, SET_MCAST_RATE);
1537 #ifdef CONFIG_NL80211_TESTMODE
1538 CMD(testmode_cmd, TESTMODE);
1541 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1542 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1543 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1544 CMD(channel_switch, CHANNEL_SWITCH);
1545 CMD(set_qos_map, SET_QOS_MAP);
1546 if (rdev->wiphy.features &
1547 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1548 CMD(add_tx_ts, ADD_TX_TS);
1550 /* add into the if now */
1553 if (rdev->ops->connect || rdev->ops->auth) {
1555 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1556 goto nla_put_failure;
1559 if (rdev->ops->disconnect || rdev->ops->deauth) {
1561 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1562 goto nla_put_failure;
1565 nla_nest_end(msg, nl_cmds);
1566 state->split_start++;
1570 if (rdev->ops->remain_on_channel &&
1571 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1573 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1574 rdev->wiphy.max_remain_on_channel_duration))
1575 goto nla_put_failure;
1577 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1578 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1579 goto nla_put_failure;
1581 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1582 goto nla_put_failure;
1583 state->split_start++;
1588 if (nl80211_send_wowlan(msg, rdev, state->split))
1589 goto nla_put_failure;
1590 state->split_start++;
1594 state->split_start++;
1597 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1598 rdev->wiphy.software_iftypes))
1599 goto nla_put_failure;
1601 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1603 goto nla_put_failure;
1605 state->split_start++;
1609 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1610 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1611 rdev->wiphy.ap_sme_capa))
1612 goto nla_put_failure;
1614 features = rdev->wiphy.features;
1616 * We can only add the per-channel limit information if the
1617 * dump is split, otherwise it makes it too big. Therefore
1618 * only advertise it in that case.
1621 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1622 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1623 goto nla_put_failure;
1625 if (rdev->wiphy.ht_capa_mod_mask &&
1626 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1627 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1628 rdev->wiphy.ht_capa_mod_mask))
1629 goto nla_put_failure;
1631 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1632 rdev->wiphy.max_acl_mac_addrs &&
1633 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1634 rdev->wiphy.max_acl_mac_addrs))
1635 goto nla_put_failure;
1638 * Any information below this point is only available to
1639 * applications that can deal with it being split. This
1640 * helps ensure that newly added capabilities don't break
1641 * older tools by overrunning their buffers.
1643 * We still increment split_start so that in the split
1644 * case we'll continue with more data in the next round,
1645 * but break unconditionally so unsplit data stops here.
1647 state->split_start++;
1650 if (rdev->wiphy.extended_capabilities &&
1651 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1652 rdev->wiphy.extended_capabilities_len,
1653 rdev->wiphy.extended_capabilities) ||
1654 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1655 rdev->wiphy.extended_capabilities_len,
1656 rdev->wiphy.extended_capabilities_mask)))
1657 goto nla_put_failure;
1659 if (rdev->wiphy.vht_capa_mod_mask &&
1660 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1661 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1662 rdev->wiphy.vht_capa_mod_mask))
1663 goto nla_put_failure;
1665 state->split_start++;
1668 if (nl80211_send_coalesce(msg, rdev))
1669 goto nla_put_failure;
1671 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1672 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1673 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1674 goto nla_put_failure;
1676 if (rdev->wiphy.max_ap_assoc_sta &&
1677 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1678 rdev->wiphy.max_ap_assoc_sta))
1679 goto nla_put_failure;
1681 state->split_start++;
1684 if (rdev->wiphy.n_vendor_commands) {
1685 const struct nl80211_vendor_cmd_info *info;
1686 struct nlattr *nested;
1688 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1690 goto nla_put_failure;
1692 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1693 info = &rdev->wiphy.vendor_commands[i].info;
1694 if (nla_put(msg, i + 1, sizeof(*info), info))
1695 goto nla_put_failure;
1697 nla_nest_end(msg, nested);
1700 if (rdev->wiphy.n_vendor_events) {
1701 const struct nl80211_vendor_cmd_info *info;
1702 struct nlattr *nested;
1704 nested = nla_nest_start(msg,
1705 NL80211_ATTR_VENDOR_EVENTS);
1707 goto nla_put_failure;
1709 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1710 info = &rdev->wiphy.vendor_events[i];
1711 if (nla_put(msg, i + 1, sizeof(*info), info))
1712 goto nla_put_failure;
1714 nla_nest_end(msg, nested);
1716 state->split_start++;
1719 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1720 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1721 rdev->wiphy.max_num_csa_counters))
1722 goto nla_put_failure;
1724 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1725 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1726 goto nla_put_failure;
1728 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1729 sizeof(rdev->wiphy.ext_features),
1730 rdev->wiphy.ext_features))
1731 goto nla_put_failure;
1734 state->split_start = 0;
1738 genlmsg_end(msg, hdr);
1742 genlmsg_cancel(msg, hdr);
1746 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1747 struct netlink_callback *cb,
1748 struct nl80211_dump_wiphy_state *state)
1750 struct nlattr **tb = nl80211_fam.attrbuf;
1751 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1752 tb, nl80211_fam.maxattr, nl80211_policy);
1753 /* ignore parse errors for backward compatibility */
1757 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1758 if (tb[NL80211_ATTR_WIPHY])
1759 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1760 if (tb[NL80211_ATTR_WDEV])
1761 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1762 if (tb[NL80211_ATTR_IFINDEX]) {
1763 struct net_device *netdev;
1764 struct cfg80211_registered_device *rdev;
1765 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1767 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1770 if (netdev->ieee80211_ptr) {
1771 rdev = wiphy_to_rdev(
1772 netdev->ieee80211_ptr->wiphy);
1773 state->filter_wiphy = rdev->wiphy_idx;
1780 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1783 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1784 struct cfg80211_registered_device *rdev;
1788 state = kzalloc(sizeof(*state), GFP_KERNEL);
1793 state->filter_wiphy = -1;
1794 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1800 cb->args[0] = (long)state;
1803 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1804 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1806 if (++idx <= state->start)
1808 if (state->filter_wiphy != -1 &&
1809 state->filter_wiphy != rdev->wiphy_idx)
1811 /* attempt to fit multiple wiphy data chunks into the skb */
1813 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1815 NETLINK_CB(cb->skb).portid,
1817 NLM_F_MULTI, state);
1820 * If sending the wiphy data didn't fit (ENOBUFS
1821 * or EMSGSIZE returned), this SKB is still
1822 * empty (so it's not too big because another
1823 * wiphy dataset is already in the skb) and
1824 * we've not tried to adjust the dump allocation
1825 * yet ... then adjust the alloc size to be
1826 * bigger, and return 1 but with the empty skb.
1827 * This results in an empty message being RX'ed
1828 * in userspace, but that is ignored.
1830 * We can then retry with the larger buffer.
1832 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1833 !skb->len && !state->split &&
1834 cb->min_dump_alloc < 4096) {
1835 cb->min_dump_alloc = 4096;
1836 state->split_start = 0;
1843 } while (state->split_start > 0);
1853 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1855 kfree((void *)cb->args[0]);
1859 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1861 struct sk_buff *msg;
1862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1863 struct nl80211_dump_wiphy_state state = {};
1865 msg = nlmsg_new(4096, GFP_KERNEL);
1869 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1870 info->snd_portid, info->snd_seq, 0,
1876 return genlmsg_reply(msg, info);
1879 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1880 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1881 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1882 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1883 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1884 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1887 static int parse_txq_params(struct nlattr *tb[],
1888 struct ieee80211_txq_params *txq_params)
1890 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1891 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1892 !tb[NL80211_TXQ_ATTR_AIFS])
1895 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1896 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1897 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1898 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1899 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1901 if (txq_params->ac >= NL80211_NUM_ACS)
1907 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1910 * You can only set the channel explicitly for WDS interfaces,
1911 * all others have their channel managed via their respective
1912 * "establish a connection" command (connect, join, ...)
1914 * For AP/GO and mesh mode, the channel can be set with the
1915 * channel userspace API, but is only stored and passed to the
1916 * low-level driver when the AP starts or the mesh is joined.
1917 * This is for backward compatibility, userspace can also give
1918 * the channel in the start-ap or join-mesh commands instead.
1920 * Monitors are special as they are normally slaved to
1921 * whatever else is going on, so they have their own special
1922 * operation to set the monitor channel if possible.
1925 wdev->iftype == NL80211_IFTYPE_AP ||
1926 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1927 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1928 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1931 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1932 struct genl_info *info,
1933 struct cfg80211_chan_def *chandef)
1937 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1940 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1942 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1943 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1944 chandef->center_freq1 = control_freq;
1945 chandef->center_freq2 = 0;
1947 /* Primary channel not allowed */
1948 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1951 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1952 enum nl80211_channel_type chantype;
1954 chantype = nla_get_u32(
1955 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1958 case NL80211_CHAN_NO_HT:
1959 case NL80211_CHAN_HT20:
1960 case NL80211_CHAN_HT40PLUS:
1961 case NL80211_CHAN_HT40MINUS:
1962 cfg80211_chandef_create(chandef, chandef->chan,
1968 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1970 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1971 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1972 chandef->center_freq1 =
1974 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1975 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1976 chandef->center_freq2 =
1978 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1981 if (!cfg80211_chandef_valid(chandef))
1984 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1985 IEEE80211_CHAN_DISABLED))
1988 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1989 chandef->width == NL80211_CHAN_WIDTH_10) &&
1990 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1996 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1997 struct net_device *dev,
1998 struct genl_info *info)
2000 struct cfg80211_chan_def chandef;
2002 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2003 struct wireless_dev *wdev = NULL;
2006 wdev = dev->ieee80211_ptr;
2007 if (!nl80211_can_set_dev_channel(wdev))
2010 iftype = wdev->iftype;
2012 result = nl80211_parse_chandef(rdev, info, &chandef);
2017 case NL80211_IFTYPE_AP:
2018 case NL80211_IFTYPE_P2P_GO:
2019 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2024 if (wdev->beacon_interval) {
2025 if (!dev || !rdev->ops->set_ap_chanwidth ||
2026 !(rdev->wiphy.features &
2027 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2032 /* Only allow dynamic channel width changes */
2033 if (chandef.chan != wdev->preset_chandef.chan) {
2037 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2041 wdev->preset_chandef = chandef;
2044 case NL80211_IFTYPE_MESH_POINT:
2045 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2047 case NL80211_IFTYPE_MONITOR:
2048 result = cfg80211_set_monitor_channel(rdev, &chandef);
2057 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2060 struct net_device *netdev = info->user_ptr[1];
2062 return __nl80211_set_channel(rdev, netdev, info);
2065 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2068 struct net_device *dev = info->user_ptr[1];
2069 struct wireless_dev *wdev = dev->ieee80211_ptr;
2072 if (!info->attrs[NL80211_ATTR_MAC])
2075 if (netif_running(dev))
2078 if (!rdev->ops->set_wds_peer)
2081 if (wdev->iftype != NL80211_IFTYPE_WDS)
2084 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2085 return rdev_set_wds_peer(rdev, dev, bssid);
2089 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2091 struct cfg80211_registered_device *rdev;
2092 struct net_device *netdev = NULL;
2093 struct wireless_dev *wdev;
2094 int result = 0, rem_txq_params = 0;
2095 struct nlattr *nl_txq_params;
2097 u8 retry_short = 0, retry_long = 0;
2098 u32 frag_threshold = 0, rts_threshold = 0;
2099 u8 coverage_class = 0;
2104 * Try to find the wiphy and netdev. Normally this
2105 * function shouldn't need the netdev, but this is
2106 * done for backward compatibility -- previously
2107 * setting the channel was done per wiphy, but now
2108 * it is per netdev. Previous userland like hostapd
2109 * also passed a netdev to set_wiphy, so that it is
2110 * possible to let that go to the right netdev!
2113 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2114 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2116 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2117 if (netdev && netdev->ieee80211_ptr)
2118 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2124 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2127 return PTR_ERR(rdev);
2132 wdev = netdev->ieee80211_ptr;
2135 * end workaround code, by now the rdev is available
2136 * and locked, and wdev may or may not be NULL.
2139 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2140 result = cfg80211_dev_rename(
2141 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2146 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2147 struct ieee80211_txq_params txq_params;
2148 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2150 if (!rdev->ops->set_txq_params)
2156 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2157 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2160 if (!netif_running(netdev))
2163 nla_for_each_nested(nl_txq_params,
2164 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2166 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2167 nla_data(nl_txq_params),
2168 nla_len(nl_txq_params),
2172 result = parse_txq_params(tb, &txq_params);
2176 result = rdev_set_txq_params(rdev, netdev,
2183 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2184 result = __nl80211_set_channel(
2186 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2192 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2193 struct wireless_dev *txp_wdev = wdev;
2194 enum nl80211_tx_power_setting type;
2197 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2200 if (!rdev->ops->set_tx_power)
2203 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2204 type = nla_get_u32(info->attrs[idx]);
2206 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2207 (type != NL80211_TX_POWER_AUTOMATIC))
2210 if (type != NL80211_TX_POWER_AUTOMATIC) {
2211 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2212 mbm = nla_get_u32(info->attrs[idx]);
2215 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2220 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2221 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2223 if ((!rdev->wiphy.available_antennas_tx &&
2224 !rdev->wiphy.available_antennas_rx) ||
2225 !rdev->ops->set_antenna)
2228 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2229 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2231 /* reject antenna configurations which don't match the
2232 * available antenna masks, except for the "all" mask */
2233 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2234 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2237 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2238 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2240 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2247 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2248 retry_short = nla_get_u8(
2249 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2250 if (retry_short == 0)
2253 changed |= WIPHY_PARAM_RETRY_SHORT;
2256 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2257 retry_long = nla_get_u8(
2258 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2259 if (retry_long == 0)
2262 changed |= WIPHY_PARAM_RETRY_LONG;
2265 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2266 frag_threshold = nla_get_u32(
2267 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2268 if (frag_threshold < 256)
2271 if (frag_threshold != (u32) -1) {
2273 * Fragments (apart from the last one) are required to
2274 * have even length. Make the fragmentation code
2275 * simpler by stripping LSB should someone try to use
2276 * odd threshold value.
2278 frag_threshold &= ~0x1;
2280 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2283 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2284 rts_threshold = nla_get_u32(
2285 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2286 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2289 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2290 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2293 coverage_class = nla_get_u8(
2294 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2295 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2298 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2299 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2302 changed |= WIPHY_PARAM_DYN_ACK;
2306 u8 old_retry_short, old_retry_long;
2307 u32 old_frag_threshold, old_rts_threshold;
2308 u8 old_coverage_class;
2310 if (!rdev->ops->set_wiphy_params)
2313 old_retry_short = rdev->wiphy.retry_short;
2314 old_retry_long = rdev->wiphy.retry_long;
2315 old_frag_threshold = rdev->wiphy.frag_threshold;
2316 old_rts_threshold = rdev->wiphy.rts_threshold;
2317 old_coverage_class = rdev->wiphy.coverage_class;
2319 if (changed & WIPHY_PARAM_RETRY_SHORT)
2320 rdev->wiphy.retry_short = retry_short;
2321 if (changed & WIPHY_PARAM_RETRY_LONG)
2322 rdev->wiphy.retry_long = retry_long;
2323 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2324 rdev->wiphy.frag_threshold = frag_threshold;
2325 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2326 rdev->wiphy.rts_threshold = rts_threshold;
2327 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2328 rdev->wiphy.coverage_class = coverage_class;
2330 result = rdev_set_wiphy_params(rdev, changed);
2332 rdev->wiphy.retry_short = old_retry_short;
2333 rdev->wiphy.retry_long = old_retry_long;
2334 rdev->wiphy.frag_threshold = old_frag_threshold;
2335 rdev->wiphy.rts_threshold = old_rts_threshold;
2336 rdev->wiphy.coverage_class = old_coverage_class;
2343 static inline u64 wdev_id(struct wireless_dev *wdev)
2345 return (u64)wdev->identifier |
2346 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2349 static int nl80211_send_chandef(struct sk_buff *msg,
2350 const struct cfg80211_chan_def *chandef)
2352 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2356 chandef->chan->center_freq))
2358 switch (chandef->width) {
2359 case NL80211_CHAN_WIDTH_20_NOHT:
2360 case NL80211_CHAN_WIDTH_20:
2361 case NL80211_CHAN_WIDTH_40:
2362 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2363 cfg80211_get_chandef_type(chandef)))
2369 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2371 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2373 if (chandef->center_freq2 &&
2374 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2379 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2380 struct cfg80211_registered_device *rdev,
2381 struct wireless_dev *wdev, bool removal)
2383 struct net_device *dev = wdev->netdev;
2384 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2388 cmd = NL80211_CMD_DEL_INTERFACE;
2390 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2395 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2396 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2397 goto nla_put_failure;
2399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2400 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2401 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2402 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2403 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2404 rdev->devlist_generation ^
2405 (cfg80211_rdev_list_generation << 2)))
2406 goto nla_put_failure;
2408 if (rdev->ops->get_channel) {
2410 struct cfg80211_chan_def chandef;
2412 ret = rdev_get_channel(rdev, wdev, &chandef);
2414 if (nl80211_send_chandef(msg, &chandef))
2415 goto nla_put_failure;
2419 if (rdev->ops->get_tx_power) {
2422 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2424 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2426 goto nla_put_failure;
2429 if (wdev->ssid_len) {
2430 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2431 goto nla_put_failure;
2434 genlmsg_end(msg, hdr);
2438 genlmsg_cancel(msg, hdr);
2442 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2446 int wp_start = cb->args[0];
2447 int if_start = cb->args[1];
2448 struct cfg80211_registered_device *rdev;
2449 struct wireless_dev *wdev;
2452 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2453 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2455 if (wp_idx < wp_start) {
2461 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2462 if (if_idx < if_start) {
2466 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2468 rdev, wdev, false) < 0) {
2479 cb->args[0] = wp_idx;
2480 cb->args[1] = if_idx;
2485 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2487 struct sk_buff *msg;
2488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2489 struct wireless_dev *wdev = info->user_ptr[1];
2491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2495 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2496 rdev, wdev, false) < 0) {
2501 return genlmsg_reply(msg, info);
2504 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2505 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2506 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2507 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2508 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2509 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2510 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2513 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2515 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2523 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2524 nla, mntr_flags_policy))
2527 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2529 *mntrflags |= (1<<flag);
2534 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2535 struct net_device *netdev, u8 use_4addr,
2536 enum nl80211_iftype iftype)
2539 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2545 case NL80211_IFTYPE_AP_VLAN:
2546 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2549 case NL80211_IFTYPE_STATION:
2550 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2560 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2563 struct vif_params params;
2565 enum nl80211_iftype otype, ntype;
2566 struct net_device *dev = info->user_ptr[1];
2567 u32 _flags, *flags = NULL;
2568 bool change = false;
2570 memset(¶ms, 0, sizeof(params));
2572 otype = ntype = dev->ieee80211_ptr->iftype;
2574 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2575 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2578 if (ntype > NL80211_IFTYPE_MAX)
2582 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2583 struct wireless_dev *wdev = dev->ieee80211_ptr;
2585 if (ntype != NL80211_IFTYPE_MESH_POINT)
2587 if (netif_running(dev))
2591 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2592 IEEE80211_MAX_MESH_ID_LEN);
2593 wdev->mesh_id_up_len =
2594 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2595 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2596 wdev->mesh_id_up_len);
2600 if (info->attrs[NL80211_ATTR_4ADDR]) {
2601 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2603 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2607 params.use_4addr = -1;
2610 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2611 if (ntype != NL80211_IFTYPE_MONITOR)
2613 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2622 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2623 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2627 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2631 if (!err && params.use_4addr != -1)
2632 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2637 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2640 struct vif_params params;
2641 struct wireless_dev *wdev;
2642 struct sk_buff *msg, *event;
2644 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2647 /* to avoid failing a new interface creation due to pending removal */
2648 cfg80211_destroy_ifaces(rdev);
2650 memset(¶ms, 0, sizeof(params));
2652 if (!info->attrs[NL80211_ATTR_IFNAME])
2655 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2656 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2657 if (type > NL80211_IFTYPE_MAX)
2661 if (!rdev->ops->add_virtual_intf ||
2662 !(rdev->wiphy.interface_modes & (1 << type)))
2665 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2666 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2667 info->attrs[NL80211_ATTR_MAC]) {
2668 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2670 if (!is_valid_ether_addr(params.macaddr))
2671 return -EADDRNOTAVAIL;
2674 if (info->attrs[NL80211_ATTR_4ADDR]) {
2675 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2676 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2681 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2682 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2685 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2686 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2693 wdev = rdev_add_virtual_intf(rdev,
2694 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2695 NET_NAME_USER, type, err ? NULL : &flags,
2697 if (WARN_ON(!wdev)) {
2700 } else if (IS_ERR(wdev)) {
2702 return PTR_ERR(wdev);
2705 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2706 wdev->owner_nlportid = info->snd_portid;
2709 case NL80211_IFTYPE_MESH_POINT:
2710 if (!info->attrs[NL80211_ATTR_MESH_ID])
2713 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2714 IEEE80211_MAX_MESH_ID_LEN);
2715 wdev->mesh_id_up_len =
2716 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2717 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2718 wdev->mesh_id_up_len);
2721 case NL80211_IFTYPE_P2P_DEVICE:
2723 * P2P Device doesn't have a netdev, so doesn't go
2724 * through the netdev notifier and must be added here
2726 mutex_init(&wdev->mtx);
2727 INIT_LIST_HEAD(&wdev->event_list);
2728 spin_lock_init(&wdev->event_lock);
2729 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2730 spin_lock_init(&wdev->mgmt_registrations_lock);
2732 wdev->identifier = ++rdev->wdev_id;
2733 list_add_rcu(&wdev->list, &rdev->wdev_list);
2734 rdev->devlist_generation++;
2740 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2741 rdev, wdev, false) < 0) {
2746 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2748 if (nl80211_send_iface(event, 0, 0, 0,
2749 rdev, wdev, false) < 0) {
2754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2755 event, 0, NL80211_MCGRP_CONFIG,
2760 return genlmsg_reply(msg, info);
2763 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2766 struct wireless_dev *wdev = info->user_ptr[1];
2767 struct sk_buff *msg;
2770 if (!rdev->ops->del_virtual_intf)
2773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2774 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2780 * If we remove a wireless device without a netdev then clear
2781 * user_ptr[1] so that nl80211_post_doit won't dereference it
2782 * to check if it needs to do dev_put(). Otherwise it crashes
2783 * since the wdev has been freed, unlike with a netdev where
2784 * we need the dev_put() for the netdev to really be freed.
2787 info->user_ptr[1] = NULL;
2789 status = rdev_del_virtual_intf(rdev, wdev);
2790 if (status >= 0 && msg)
2791 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2792 msg, 0, NL80211_MCGRP_CONFIG,
2800 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2803 struct net_device *dev = info->user_ptr[1];
2806 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2809 if (!rdev->ops->set_noack_map)
2812 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2814 return rdev_set_noack_map(rdev, dev, noack_map);
2817 struct get_key_cookie {
2818 struct sk_buff *msg;
2823 static void get_key_callback(void *c, struct key_params *params)
2826 struct get_key_cookie *cookie = c;
2829 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2830 params->key_len, params->key)) ||
2832 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2833 params->seq_len, params->seq)) ||
2835 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2837 goto nla_put_failure;
2839 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2841 goto nla_put_failure;
2844 nla_put(cookie->msg, NL80211_KEY_DATA,
2845 params->key_len, params->key)) ||
2847 nla_put(cookie->msg, NL80211_KEY_SEQ,
2848 params->seq_len, params->seq)) ||
2850 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2852 goto nla_put_failure;
2854 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2855 goto nla_put_failure;
2857 nla_nest_end(cookie->msg, key);
2864 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2868 struct net_device *dev = info->user_ptr[1];
2870 const u8 *mac_addr = NULL;
2872 struct get_key_cookie cookie = {
2876 struct sk_buff *msg;
2878 if (info->attrs[NL80211_ATTR_KEY_IDX])
2879 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2884 if (info->attrs[NL80211_ATTR_MAC])
2885 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2887 pairwise = !!mac_addr;
2888 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2889 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2890 if (kt >= NUM_NL80211_KEYTYPES)
2892 if (kt != NL80211_KEYTYPE_GROUP &&
2893 kt != NL80211_KEYTYPE_PAIRWISE)
2895 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2898 if (!rdev->ops->get_key)
2901 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2909 NL80211_CMD_NEW_KEY);
2911 goto nla_put_failure;
2914 cookie.idx = key_idx;
2916 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2917 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2918 goto nla_put_failure;
2920 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2921 goto nla_put_failure;
2923 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2930 goto nla_put_failure;
2932 genlmsg_end(msg, hdr);
2933 return genlmsg_reply(msg, info);
2942 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2945 struct key_parse key;
2947 struct net_device *dev = info->user_ptr[1];
2949 err = nl80211_parse_key(info, &key);
2956 /* only support setting default key */
2957 if (!key.def && !key.defmgmt)
2960 wdev_lock(dev->ieee80211_ptr);
2963 if (!rdev->ops->set_default_key) {
2968 err = nl80211_key_allowed(dev->ieee80211_ptr);
2972 err = rdev_set_default_key(rdev, dev, key.idx,
2973 key.def_uni, key.def_multi);
2978 #ifdef CONFIG_CFG80211_WEXT
2979 dev->ieee80211_ptr->wext.default_key = key.idx;
2982 if (key.def_uni || !key.def_multi) {
2987 if (!rdev->ops->set_default_mgmt_key) {
2992 err = nl80211_key_allowed(dev->ieee80211_ptr);
2996 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3000 #ifdef CONFIG_CFG80211_WEXT
3001 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3006 wdev_unlock(dev->ieee80211_ptr);
3011 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3015 struct net_device *dev = info->user_ptr[1];
3016 struct key_parse key;
3017 const u8 *mac_addr = NULL;
3019 err = nl80211_parse_key(info, &key);
3026 if (info->attrs[NL80211_ATTR_MAC])
3027 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3029 if (key.type == -1) {
3031 key.type = NL80211_KEYTYPE_PAIRWISE;
3033 key.type = NL80211_KEYTYPE_GROUP;
3037 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3038 key.type != NL80211_KEYTYPE_GROUP)
3041 if (!rdev->ops->add_key)
3044 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3045 key.type == NL80211_KEYTYPE_PAIRWISE,
3049 wdev_lock(dev->ieee80211_ptr);
3050 err = nl80211_key_allowed(dev->ieee80211_ptr);
3052 err = rdev_add_key(rdev, dev, key.idx,
3053 key.type == NL80211_KEYTYPE_PAIRWISE,
3055 wdev_unlock(dev->ieee80211_ptr);
3060 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3064 struct net_device *dev = info->user_ptr[1];
3065 u8 *mac_addr = NULL;
3066 struct key_parse key;
3068 err = nl80211_parse_key(info, &key);
3072 if (info->attrs[NL80211_ATTR_MAC])
3073 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3075 if (key.type == -1) {
3077 key.type = NL80211_KEYTYPE_PAIRWISE;
3079 key.type = NL80211_KEYTYPE_GROUP;
3083 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3084 key.type != NL80211_KEYTYPE_GROUP)
3087 if (!rdev->ops->del_key)
3090 wdev_lock(dev->ieee80211_ptr);
3091 err = nl80211_key_allowed(dev->ieee80211_ptr);
3093 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3094 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3098 err = rdev_del_key(rdev, dev, key.idx,
3099 key.type == NL80211_KEYTYPE_PAIRWISE,
3102 #ifdef CONFIG_CFG80211_WEXT
3104 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3105 dev->ieee80211_ptr->wext.default_key = -1;
3106 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3107 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3110 wdev_unlock(dev->ieee80211_ptr);
3115 /* This function returns an error or the number of nested attributes */
3116 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3118 struct nlattr *attr;
3119 int n_entries = 0, tmp;
3121 nla_for_each_nested(attr, nl_attr, tmp) {
3122 if (nla_len(attr) != ETH_ALEN)
3132 * This function parses ACL information and allocates memory for ACL data.
3133 * On successful return, the calling function is responsible to free the
3134 * ACL buffer returned by this function.
3136 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3137 struct genl_info *info)
3139 enum nl80211_acl_policy acl_policy;
3140 struct nlattr *attr;
3141 struct cfg80211_acl_data *acl;
3142 int i = 0, n_entries, tmp;
3144 if (!wiphy->max_acl_mac_addrs)
3145 return ERR_PTR(-EOPNOTSUPP);
3147 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3148 return ERR_PTR(-EINVAL);
3150 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3151 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3152 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3153 return ERR_PTR(-EINVAL);
3155 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3156 return ERR_PTR(-EINVAL);
3158 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3160 return ERR_PTR(n_entries);
3162 if (n_entries > wiphy->max_acl_mac_addrs)
3163 return ERR_PTR(-ENOTSUPP);
3165 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3168 return ERR_PTR(-ENOMEM);
3170 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3171 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3175 acl->n_acl_entries = n_entries;
3176 acl->acl_policy = acl_policy;
3181 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3183 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3184 struct net_device *dev = info->user_ptr[1];
3185 struct cfg80211_acl_data *acl;
3188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3192 if (!dev->ieee80211_ptr->beacon_interval)
3195 acl = parse_acl_data(&rdev->wiphy, info);
3197 return PTR_ERR(acl);
3199 err = rdev_set_mac_acl(rdev, dev, acl);
3206 static int nl80211_parse_beacon(struct nlattr *attrs[],
3207 struct cfg80211_beacon_data *bcn)
3209 bool haveinfo = false;
3211 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3212 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3213 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3214 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3217 memset(bcn, 0, sizeof(*bcn));
3219 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3220 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3221 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3227 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3228 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3229 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3236 if (attrs[NL80211_ATTR_IE]) {
3237 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3238 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3241 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3242 bcn->proberesp_ies =
3243 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3244 bcn->proberesp_ies_len =
3245 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3248 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3249 bcn->assocresp_ies =
3250 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3251 bcn->assocresp_ies_len =
3252 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3255 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3256 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3257 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3263 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3264 struct cfg80211_ap_settings *params)
3266 struct wireless_dev *wdev;
3269 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3270 if (wdev->iftype != NL80211_IFTYPE_AP &&
3271 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3274 if (!wdev->preset_chandef.chan)
3277 params->chandef = wdev->preset_chandef;
3285 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3286 enum nl80211_auth_type auth_type,
3287 enum nl80211_commands cmd)
3289 if (auth_type > NL80211_AUTHTYPE_MAX)
3293 case NL80211_CMD_AUTHENTICATE:
3294 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3295 auth_type == NL80211_AUTHTYPE_SAE)
3298 case NL80211_CMD_CONNECT:
3299 case NL80211_CMD_START_AP:
3300 /* SAE not supported yet */
3301 if (auth_type == NL80211_AUTHTYPE_SAE)
3309 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3312 struct net_device *dev = info->user_ptr[1];
3313 struct wireless_dev *wdev = dev->ieee80211_ptr;
3314 struct cfg80211_ap_settings params;
3317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3318 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3321 if (!rdev->ops->start_ap)
3324 if (wdev->beacon_interval)
3327 memset(¶ms, 0, sizeof(params));
3329 /* these are required for START_AP */
3330 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3331 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3332 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3335 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3339 params.beacon_interval =
3340 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3341 params.dtim_period =
3342 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3344 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3349 * In theory, some of these attributes should be required here
3350 * but since they were not used when the command was originally
3351 * added, keep them optional for old user space programs to let
3352 * them continue to work with drivers that do not need the
3353 * additional information -- drivers must check!
3355 if (info->attrs[NL80211_ATTR_SSID]) {
3356 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3358 nla_len(info->attrs[NL80211_ATTR_SSID]);
3359 if (params.ssid_len == 0 ||
3360 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3364 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3365 params.hidden_ssid = nla_get_u32(
3366 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3367 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3368 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3369 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3373 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3375 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3376 params.auth_type = nla_get_u32(
3377 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3378 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3379 NL80211_CMD_START_AP))
3382 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3384 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3385 NL80211_MAX_NR_CIPHER_SUITES);
3389 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3390 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3392 params.inactivity_timeout = nla_get_u16(
3393 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3396 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3397 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3399 params.p2p_ctwindow =
3400 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3401 if (params.p2p_ctwindow > 127)
3403 if (params.p2p_ctwindow != 0 &&
3404 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3408 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3413 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3416 params.p2p_opp_ps = tmp;
3417 if (params.p2p_opp_ps != 0 &&
3418 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3422 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3423 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3426 } else if (wdev->preset_chandef.chan) {
3427 params.chandef = wdev->preset_chandef;
3428 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3431 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3435 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3437 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3438 switch (params.smps_mode) {
3439 case NL80211_SMPS_OFF:
3441 case NL80211_SMPS_STATIC:
3442 if (!(rdev->wiphy.features &
3443 NL80211_FEATURE_STATIC_SMPS))
3446 case NL80211_SMPS_DYNAMIC:
3447 if (!(rdev->wiphy.features &
3448 NL80211_FEATURE_DYNAMIC_SMPS))
3455 params.smps_mode = NL80211_SMPS_OFF;
3458 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3459 params.acl = parse_acl_data(&rdev->wiphy, info);
3460 if (IS_ERR(params.acl))
3461 return PTR_ERR(params.acl);
3465 err = rdev_start_ap(rdev, dev, ¶ms);
3467 wdev->preset_chandef = params.chandef;
3468 wdev->beacon_interval = params.beacon_interval;
3469 wdev->chandef = params.chandef;
3470 wdev->ssid_len = params.ssid_len;
3471 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3480 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3483 struct net_device *dev = info->user_ptr[1];
3484 struct wireless_dev *wdev = dev->ieee80211_ptr;
3485 struct cfg80211_beacon_data params;
3488 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3489 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3492 if (!rdev->ops->change_beacon)
3495 if (!wdev->beacon_interval)
3498 err = nl80211_parse_beacon(info->attrs, ¶ms);
3503 err = rdev_change_beacon(rdev, dev, ¶ms);
3509 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3512 struct net_device *dev = info->user_ptr[1];
3514 return cfg80211_stop_ap(rdev, dev, false);
3517 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3518 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3519 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3520 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3521 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3522 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3523 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3526 static int parse_station_flags(struct genl_info *info,
3527 enum nl80211_iftype iftype,
3528 struct station_parameters *params)
3530 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3535 * Try parsing the new attribute first so userspace
3536 * can specify both for older kernels.
3538 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3540 struct nl80211_sta_flag_update *sta_flags;
3542 sta_flags = nla_data(nla);
3543 params->sta_flags_mask = sta_flags->mask;
3544 params->sta_flags_set = sta_flags->set;
3545 params->sta_flags_set &= params->sta_flags_mask;
3546 if ((params->sta_flags_mask |
3547 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3552 /* if present, parse the old attribute */
3554 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3558 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3559 nla, sta_flags_policy))
3563 * Only allow certain flags for interface types so that
3564 * other attributes are silently ignored. Remember that
3565 * this is backward compatibility code with old userspace
3566 * and shouldn't be hit in other cases anyway.
3569 case NL80211_IFTYPE_AP:
3570 case NL80211_IFTYPE_AP_VLAN:
3571 case NL80211_IFTYPE_P2P_GO:
3572 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3573 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3574 BIT(NL80211_STA_FLAG_WME) |
3575 BIT(NL80211_STA_FLAG_MFP);
3577 case NL80211_IFTYPE_P2P_CLIENT:
3578 case NL80211_IFTYPE_STATION:
3579 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3580 BIT(NL80211_STA_FLAG_TDLS_PEER);
3582 case NL80211_IFTYPE_MESH_POINT:
3583 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3584 BIT(NL80211_STA_FLAG_MFP) |
3585 BIT(NL80211_STA_FLAG_AUTHORIZED);
3590 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3592 params->sta_flags_set |= (1<<flag);
3594 /* no longer support new API additions in old API */
3595 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3603 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3606 struct nlattr *rate;
3609 enum nl80211_attrs rate_flg;
3611 rate = nla_nest_start(msg, attr);
3615 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3616 bitrate = cfg80211_calculate_bitrate(info);
3617 /* report 16-bit bitrate only if we can */
3618 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3620 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3622 if (bitrate_compat > 0 &&
3623 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3627 case RATE_INFO_BW_5:
3628 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3630 case RATE_INFO_BW_10:
3631 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3636 case RATE_INFO_BW_20:
3639 case RATE_INFO_BW_40:
3640 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3642 case RATE_INFO_BW_80:
3643 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3645 case RATE_INFO_BW_160:
3646 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3650 if (rate_flg && nla_put_flag(msg, rate_flg))
3653 if (info->flags & RATE_INFO_FLAGS_MCS) {
3654 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3656 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3657 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3659 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3660 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3662 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3664 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3665 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3669 nla_nest_end(msg, rate);
3673 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3682 attr = nla_nest_start(msg, id);
3686 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3687 if (!(mask & BIT(i)))
3690 if (nla_put_u8(msg, i, signal[i]))
3694 nla_nest_end(msg, attr);
3699 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3701 struct cfg80211_registered_device *rdev,
3702 struct net_device *dev,
3703 const u8 *mac_addr, struct station_info *sinfo)
3706 struct nlattr *sinfoattr, *bss_param;
3708 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3712 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3714 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3715 goto nla_put_failure;
3717 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3719 goto nla_put_failure;
3721 #define PUT_SINFO(attr, memb, type) do { \
3722 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3723 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3725 goto nla_put_failure; \
3728 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3729 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3731 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3732 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3733 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3734 (u32)sinfo->rx_bytes))
3735 goto nla_put_failure;
3737 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3738 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3739 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3740 (u32)sinfo->tx_bytes))
3741 goto nla_put_failure;
3743 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3744 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3745 PUT_SINFO(LLID, llid, u16);
3746 PUT_SINFO(PLID, plid, u16);
3747 PUT_SINFO(PLINK_STATE, plink_state, u8);
3749 switch (rdev->wiphy.signal_type) {
3750 case CFG80211_SIGNAL_TYPE_MBM:
3751 PUT_SINFO(SIGNAL, signal, u8);
3752 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3757 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3758 if (!nl80211_put_signal(msg, sinfo->chains,
3759 sinfo->chain_signal,
3760 NL80211_STA_INFO_CHAIN_SIGNAL))
3761 goto nla_put_failure;
3763 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3764 if (!nl80211_put_signal(msg, sinfo->chains,
3765 sinfo->chain_signal_avg,
3766 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3767 goto nla_put_failure;
3769 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3770 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3771 NL80211_STA_INFO_TX_BITRATE))
3772 goto nla_put_failure;
3774 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3775 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3776 NL80211_STA_INFO_RX_BITRATE))
3777 goto nla_put_failure;
3780 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3781 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3782 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3783 PUT_SINFO(TX_FAILED, tx_failed, u32);
3784 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3785 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3786 PUT_SINFO(LOCAL_PM, local_pm, u32);
3787 PUT_SINFO(PEER_PM, peer_pm, u32);
3788 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3790 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3791 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3793 goto nla_put_failure;
3795 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3796 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3797 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3798 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3799 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3800 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3801 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3802 sinfo->bss_param.dtim_period) ||
3803 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3804 sinfo->bss_param.beacon_interval))
3805 goto nla_put_failure;
3807 nla_nest_end(msg, bss_param);
3809 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3810 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3811 sizeof(struct nl80211_sta_flag_update),
3813 goto nla_put_failure;
3815 PUT_SINFO(T_OFFSET, t_offset, u64);
3816 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
3817 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3818 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3822 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3823 struct nlattr *tidsattr;
3826 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3828 goto nla_put_failure;
3830 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3831 struct cfg80211_tid_stats *tidstats;
3832 struct nlattr *tidattr;
3834 tidstats = &sinfo->pertid[tid];
3836 if (!tidstats->filled)
3839 tidattr = nla_nest_start(msg, tid + 1);
3841 goto nla_put_failure;
3843 #define PUT_TIDVAL(attr, memb, type) do { \
3844 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3845 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3847 goto nla_put_failure; \
3850 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3851 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3852 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3853 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3856 nla_nest_end(msg, tidattr);
3859 nla_nest_end(msg, tidsattr);
3862 nla_nest_end(msg, sinfoattr);
3864 if (sinfo->assoc_req_ies_len &&
3865 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3866 sinfo->assoc_req_ies))
3867 goto nla_put_failure;
3869 genlmsg_end(msg, hdr);
3873 genlmsg_cancel(msg, hdr);
3877 static int nl80211_dump_station(struct sk_buff *skb,
3878 struct netlink_callback *cb)
3880 struct station_info sinfo;
3881 struct cfg80211_registered_device *rdev;
3882 struct wireless_dev *wdev;
3883 u8 mac_addr[ETH_ALEN];
3884 int sta_idx = cb->args[2];
3887 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3891 if (!wdev->netdev) {
3896 if (!rdev->ops->dump_station) {
3902 memset(&sinfo, 0, sizeof(sinfo));
3903 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3910 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
3911 NETLINK_CB(cb->skb).portid,
3912 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3913 rdev, wdev->netdev, mac_addr,
3922 cb->args[2] = sta_idx;
3925 nl80211_finish_wdev_dump(rdev);
3930 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3933 struct net_device *dev = info->user_ptr[1];
3934 struct station_info sinfo;
3935 struct sk_buff *msg;
3936 u8 *mac_addr = NULL;
3939 memset(&sinfo, 0, sizeof(sinfo));
3941 if (!info->attrs[NL80211_ATTR_MAC])
3944 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3946 if (!rdev->ops->get_station)
3949 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3957 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3958 info->snd_portid, info->snd_seq, 0,
3959 rdev, dev, mac_addr, &sinfo) < 0) {
3964 return genlmsg_reply(msg, info);
3967 int cfg80211_check_station_change(struct wiphy *wiphy,
3968 struct station_parameters *params,
3969 enum cfg80211_station_type statype)
3971 if (params->listen_interval != -1)
3974 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3977 /* When you run into this, adjust the code below for the new flag */
3978 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3981 case CFG80211_STA_MESH_PEER_KERNEL:
3982 case CFG80211_STA_MESH_PEER_USER:
3984 * No ignoring the TDLS flag here -- the userspace mesh
3985 * code doesn't have the bug of including TDLS in the
3988 if (params->sta_flags_mask &
3989 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3990 BIT(NL80211_STA_FLAG_MFP) |
3991 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3994 case CFG80211_STA_TDLS_PEER_SETUP:
3995 case CFG80211_STA_TDLS_PEER_ACTIVE:
3996 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3998 /* ignore since it can't change */
3999 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4002 /* disallow mesh-specific things */
4003 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4005 if (params->local_pm)
4007 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4011 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4012 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4013 /* TDLS can't be set, ... */
4014 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4017 * ... but don't bother the driver with it. This works around
4018 * a hostapd/wpa_supplicant issue -- it always includes the
4019 * TLDS_PEER flag in the mask even for AP mode.
4021 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4024 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4025 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4026 /* reject other things that can't change */
4027 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4029 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4031 if (params->supported_rates)
4033 if (params->ext_capab || params->ht_capa || params->vht_capa)
4037 if (statype != CFG80211_STA_AP_CLIENT &&
4038 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4044 case CFG80211_STA_AP_MLME_CLIENT:
4045 /* Use this only for authorizing/unauthorizing a station */
4046 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4049 case CFG80211_STA_AP_CLIENT:
4050 case CFG80211_STA_AP_CLIENT_UNASSOC:
4051 /* accept only the listed bits */
4052 if (params->sta_flags_mask &
4053 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4054 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4055 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4056 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4057 BIT(NL80211_STA_FLAG_WME) |
4058 BIT(NL80211_STA_FLAG_MFP)))
4061 /* but authenticated/associated only if driver handles it */
4062 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4063 params->sta_flags_mask &
4064 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4065 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4068 case CFG80211_STA_IBSS:
4069 case CFG80211_STA_AP_STA:
4070 /* reject any changes other than AUTHORIZED */
4071 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4074 case CFG80211_STA_TDLS_PEER_SETUP:
4075 /* reject any changes other than AUTHORIZED or WME */
4076 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4077 BIT(NL80211_STA_FLAG_WME)))
4079 /* force (at least) rates when authorizing */
4080 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4081 !params->supported_rates)
4084 case CFG80211_STA_TDLS_PEER_ACTIVE:
4085 /* reject any changes */
4087 case CFG80211_STA_MESH_PEER_KERNEL:
4088 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4091 case CFG80211_STA_MESH_PEER_USER:
4092 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4093 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4100 EXPORT_SYMBOL(cfg80211_check_station_change);
4103 * Get vlan interface making sure it is running and on the right wiphy.
4105 static struct net_device *get_vlan(struct genl_info *info,
4106 struct cfg80211_registered_device *rdev)
4108 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4109 struct net_device *v;
4115 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4117 return ERR_PTR(-ENODEV);
4119 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4124 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4125 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4126 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4131 if (!netif_running(v)) {
4139 return ERR_PTR(ret);
4142 static const struct nla_policy
4143 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4144 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4145 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4148 static int nl80211_parse_sta_wme(struct genl_info *info,
4149 struct station_parameters *params)
4151 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4155 /* parse WME attributes if present */
4156 if (!info->attrs[NL80211_ATTR_STA_WME])
4159 nla = info->attrs[NL80211_ATTR_STA_WME];
4160 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4161 nl80211_sta_wme_policy);
4165 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4166 params->uapsd_queues = nla_get_u8(
4167 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4168 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4171 if (tb[NL80211_STA_WME_MAX_SP])
4172 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4174 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4177 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4182 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4183 struct station_parameters *params)
4185 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4186 params->supported_channels =
4187 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4188 params->supported_channels_len =
4189 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4191 * Need to include at least one (first channel, number of
4192 * channels) tuple for each subband, and must have proper
4193 * tuples for the rest of the data as well.
4195 if (params->supported_channels_len < 2)
4197 if (params->supported_channels_len % 2)
4201 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4202 params->supported_oper_classes =
4203 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4204 params->supported_oper_classes_len =
4205 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4207 * The value of the Length field of the Supported Operating
4208 * Classes element is between 2 and 253.
4210 if (params->supported_oper_classes_len < 2 ||
4211 params->supported_oper_classes_len > 253)
4217 static int nl80211_set_station_tdls(struct genl_info *info,
4218 struct station_parameters *params)
4221 /* Dummy STA entry gets updated once the peer capabilities are known */
4222 if (info->attrs[NL80211_ATTR_PEER_AID])
4223 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4224 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4226 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4227 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4229 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4231 err = nl80211_parse_sta_channel_info(info, params);
4235 return nl80211_parse_sta_wme(info, params);
4238 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4241 struct net_device *dev = info->user_ptr[1];
4242 struct station_parameters params;
4246 memset(¶ms, 0, sizeof(params));
4248 params.listen_interval = -1;
4250 if (!rdev->ops->change_station)
4253 if (info->attrs[NL80211_ATTR_STA_AID])
4256 if (!info->attrs[NL80211_ATTR_MAC])
4259 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4261 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4262 params.supported_rates =
4263 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4264 params.supported_rates_len =
4265 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4268 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4270 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4271 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4274 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4276 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4277 params.ext_capab_len =
4278 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4281 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4284 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4287 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4288 params.plink_action =
4289 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4290 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4294 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4295 params.plink_state =
4296 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4297 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4299 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4302 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4303 enum nl80211_mesh_power_mode pm = nla_get_u32(
4304 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4306 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4307 pm > NL80211_MESH_POWER_MAX)
4310 params.local_pm = pm;
4313 /* Include parameters for TDLS peer (will check later) */
4314 err = nl80211_set_station_tdls(info, ¶ms);
4318 params.vlan = get_vlan(info, rdev);
4319 if (IS_ERR(params.vlan))
4320 return PTR_ERR(params.vlan);
4322 switch (dev->ieee80211_ptr->iftype) {
4323 case NL80211_IFTYPE_AP:
4324 case NL80211_IFTYPE_AP_VLAN:
4325 case NL80211_IFTYPE_P2P_GO:
4326 case NL80211_IFTYPE_P2P_CLIENT:
4327 case NL80211_IFTYPE_STATION:
4328 case NL80211_IFTYPE_ADHOC:
4329 case NL80211_IFTYPE_MESH_POINT:
4336 /* driver will call cfg80211_check_station_change() */
4337 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4341 dev_put(params.vlan);
4346 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4348 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4350 struct net_device *dev = info->user_ptr[1];
4351 struct station_parameters params;
4352 u8 *mac_addr = NULL;
4354 memset(¶ms, 0, sizeof(params));
4356 if (!rdev->ops->add_station)
4359 if (!info->attrs[NL80211_ATTR_MAC])
4362 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4365 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4368 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4369 !info->attrs[NL80211_ATTR_PEER_AID])
4372 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4373 params.supported_rates =
4374 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4375 params.supported_rates_len =
4376 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4377 params.listen_interval =
4378 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4380 if (info->attrs[NL80211_ATTR_PEER_AID])
4381 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4383 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4384 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4387 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4389 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4390 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4393 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4395 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4396 params.ext_capab_len =
4397 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4400 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4402 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4404 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4406 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4408 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4409 params.opmode_notif_used = true;
4410 params.opmode_notif =
4411 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4414 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4415 params.plink_action =
4416 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4417 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4421 err = nl80211_parse_sta_channel_info(info, ¶ms);
4425 err = nl80211_parse_sta_wme(info, ¶ms);
4429 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4432 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4433 * as userspace might just pass through the capabilities from the IEs
4434 * directly, rather than enforcing this restriction and returning an
4435 * error in this case.
4437 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4438 params.ht_capa = NULL;
4439 params.vht_capa = NULL;
4442 /* When you run into this, adjust the code below for the new flag */
4443 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4445 switch (dev->ieee80211_ptr->iftype) {
4446 case NL80211_IFTYPE_AP:
4447 case NL80211_IFTYPE_AP_VLAN:
4448 case NL80211_IFTYPE_P2P_GO:
4449 /* ignore WME attributes if iface/sta is not capable */
4450 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4451 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4452 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4454 /* TDLS peers cannot be added */
4455 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4456 info->attrs[NL80211_ATTR_PEER_AID])
4458 /* but don't bother the driver with it */
4459 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4461 /* allow authenticated/associated only if driver handles it */
4462 if (!(rdev->wiphy.features &
4463 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4464 params.sta_flags_mask &
4465 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4466 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4469 /* must be last in here for error handling */
4470 params.vlan = get_vlan(info, rdev);
4471 if (IS_ERR(params.vlan))
4472 return PTR_ERR(params.vlan);
4474 case NL80211_IFTYPE_MESH_POINT:
4475 /* ignore uAPSD data */
4476 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4478 /* associated is disallowed */
4479 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4481 /* TDLS peers cannot be added */
4482 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4483 info->attrs[NL80211_ATTR_PEER_AID])
4486 case NL80211_IFTYPE_STATION:
4487 case NL80211_IFTYPE_P2P_CLIENT:
4488 /* ignore uAPSD data */
4489 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4491 /* these are disallowed */
4492 if (params.sta_flags_mask &
4493 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4494 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4496 /* Only TDLS peers can be added */
4497 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4499 /* Can only add if TDLS ... */
4500 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4502 /* ... with external setup is supported */
4503 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4506 * Older wpa_supplicant versions always mark the TDLS peer
4507 * as authorized, but it shouldn't yet be.
4509 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4515 /* be aware of params.vlan when changing code here */
4517 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4520 dev_put(params.vlan);
4524 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4527 struct net_device *dev = info->user_ptr[1];
4528 struct station_del_parameters params;
4530 memset(¶ms, 0, sizeof(params));
4532 if (info->attrs[NL80211_ATTR_MAC])
4533 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4535 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4536 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4537 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4538 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4541 if (!rdev->ops->del_station)
4544 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4546 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4547 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4548 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4551 /* Default to Deauthentication frame */
4552 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4555 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4556 params.reason_code =
4557 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4558 if (params.reason_code == 0)
4559 return -EINVAL; /* 0 is reserved */
4561 /* Default to reason code 2 */
4562 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4565 return rdev_del_station(rdev, dev, ¶ms);
4568 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4569 int flags, struct net_device *dev,
4570 u8 *dst, u8 *next_hop,
4571 struct mpath_info *pinfo)
4574 struct nlattr *pinfoattr;
4576 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4580 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4581 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4582 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4583 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4584 goto nla_put_failure;
4586 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4588 goto nla_put_failure;
4589 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4590 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4592 goto nla_put_failure;
4593 if (((pinfo->filled & MPATH_INFO_SN) &&
4594 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4595 ((pinfo->filled & MPATH_INFO_METRIC) &&
4596 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4598 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4599 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4601 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4602 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4604 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4605 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4606 pinfo->discovery_timeout)) ||
4607 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4608 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4609 pinfo->discovery_retries)))
4610 goto nla_put_failure;
4612 nla_nest_end(msg, pinfoattr);
4614 genlmsg_end(msg, hdr);
4618 genlmsg_cancel(msg, hdr);
4622 static int nl80211_dump_mpath(struct sk_buff *skb,
4623 struct netlink_callback *cb)
4625 struct mpath_info pinfo;
4626 struct cfg80211_registered_device *rdev;
4627 struct wireless_dev *wdev;
4629 u8 next_hop[ETH_ALEN];
4630 int path_idx = cb->args[2];
4633 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4637 if (!rdev->ops->dump_mpath) {
4642 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4648 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4655 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4656 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4657 wdev->netdev, dst, next_hop,
4666 cb->args[2] = path_idx;
4669 nl80211_finish_wdev_dump(rdev);
4673 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4675 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4677 struct net_device *dev = info->user_ptr[1];
4678 struct mpath_info pinfo;
4679 struct sk_buff *msg;
4681 u8 next_hop[ETH_ALEN];
4683 memset(&pinfo, 0, sizeof(pinfo));
4685 if (!info->attrs[NL80211_ATTR_MAC])
4688 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4690 if (!rdev->ops->get_mpath)
4693 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4696 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4700 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4704 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4705 dev, dst, next_hop, &pinfo) < 0) {
4710 return genlmsg_reply(msg, info);
4713 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4715 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4716 struct net_device *dev = info->user_ptr[1];
4718 u8 *next_hop = NULL;
4720 if (!info->attrs[NL80211_ATTR_MAC])
4723 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4726 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4727 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4729 if (!rdev->ops->change_mpath)
4732 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4735 return rdev_change_mpath(rdev, dev, dst, next_hop);
4738 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4740 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4741 struct net_device *dev = info->user_ptr[1];
4743 u8 *next_hop = NULL;
4745 if (!info->attrs[NL80211_ATTR_MAC])
4748 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4751 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4752 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4754 if (!rdev->ops->add_mpath)
4757 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4760 return rdev_add_mpath(rdev, dev, dst, next_hop);
4763 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4766 struct net_device *dev = info->user_ptr[1];
4769 if (info->attrs[NL80211_ATTR_MAC])
4770 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4772 if (!rdev->ops->del_mpath)
4775 return rdev_del_mpath(rdev, dev, dst);
4778 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4782 struct net_device *dev = info->user_ptr[1];
4783 struct mpath_info pinfo;
4784 struct sk_buff *msg;
4788 memset(&pinfo, 0, sizeof(pinfo));
4790 if (!info->attrs[NL80211_ATTR_MAC])
4793 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4795 if (!rdev->ops->get_mpp)
4798 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4801 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4805 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4809 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4810 dev, dst, mpp, &pinfo) < 0) {
4815 return genlmsg_reply(msg, info);
4818 static int nl80211_dump_mpp(struct sk_buff *skb,
4819 struct netlink_callback *cb)
4821 struct mpath_info pinfo;
4822 struct cfg80211_registered_device *rdev;
4823 struct wireless_dev *wdev;
4826 int path_idx = cb->args[2];
4829 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4833 if (!rdev->ops->dump_mpp) {
4838 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4844 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4851 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4852 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4853 wdev->netdev, dst, mpp,
4861 cb->args[2] = path_idx;
4864 nl80211_finish_wdev_dump(rdev);
4868 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4870 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4871 struct net_device *dev = info->user_ptr[1];
4872 struct wireless_dev *wdev = dev->ieee80211_ptr;
4873 struct bss_parameters params;
4876 memset(¶ms, 0, sizeof(params));
4877 /* default to not changing parameters */
4878 params.use_cts_prot = -1;
4879 params.use_short_preamble = -1;
4880 params.use_short_slot_time = -1;
4881 params.ap_isolate = -1;
4882 params.ht_opmode = -1;
4883 params.p2p_ctwindow = -1;
4884 params.p2p_opp_ps = -1;
4886 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4887 params.use_cts_prot =
4888 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4889 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4890 params.use_short_preamble =
4891 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4892 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4893 params.use_short_slot_time =
4894 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4895 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4896 params.basic_rates =
4897 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4898 params.basic_rates_len =
4899 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4901 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4902 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4903 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4905 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4907 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4908 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4910 params.p2p_ctwindow =
4911 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4912 if (params.p2p_ctwindow < 0)
4914 if (params.p2p_ctwindow != 0 &&
4915 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4919 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4922 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4924 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4927 params.p2p_opp_ps = tmp;
4928 if (params.p2p_opp_ps &&
4929 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4933 if (!rdev->ops->change_bss)
4936 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4937 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4941 err = rdev_change_bss(rdev, dev, ¶ms);
4947 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4951 enum nl80211_user_reg_hint_type user_reg_hint_type;
4956 * You should only get this when cfg80211 hasn't yet initialized
4957 * completely when built-in to the kernel right between the time
4958 * window between nl80211_init() and regulatory_init(), if that is
4961 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4962 return -EINPROGRESS;
4964 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4965 user_reg_hint_type =
4966 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4968 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4970 switch (user_reg_hint_type) {
4971 case NL80211_USER_REG_HINT_USER:
4972 case NL80211_USER_REG_HINT_CELL_BASE:
4973 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4976 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4977 return regulatory_hint_user(data, user_reg_hint_type);
4978 case NL80211_USER_REG_HINT_INDOOR:
4979 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
4980 owner_nlportid = info->snd_portid;
4981 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
4987 return regulatory_hint_indoor(is_indoor, owner_nlportid);
4993 static int nl80211_get_mesh_config(struct sk_buff *skb,
4994 struct genl_info *info)
4996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4997 struct net_device *dev = info->user_ptr[1];
4998 struct wireless_dev *wdev = dev->ieee80211_ptr;
4999 struct mesh_config cur_params;
5002 struct nlattr *pinfoattr;
5003 struct sk_buff *msg;
5005 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5008 if (!rdev->ops->get_mesh_config)
5012 /* If not connected, get default parameters */
5013 if (!wdev->mesh_id_len)
5014 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5016 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5022 /* Draw up a netlink message to send back */
5023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5026 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5027 NL80211_CMD_GET_MESH_CONFIG);
5030 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5032 goto nla_put_failure;
5033 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5034 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5035 cur_params.dot11MeshRetryTimeout) ||
5036 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5037 cur_params.dot11MeshConfirmTimeout) ||
5038 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5039 cur_params.dot11MeshHoldingTimeout) ||
5040 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5041 cur_params.dot11MeshMaxPeerLinks) ||
5042 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5043 cur_params.dot11MeshMaxRetries) ||
5044 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5045 cur_params.dot11MeshTTL) ||
5046 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5047 cur_params.element_ttl) ||
5048 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5049 cur_params.auto_open_plinks) ||
5050 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5051 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5052 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5053 cur_params.dot11MeshHWMPmaxPREQretries) ||
5054 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5055 cur_params.path_refresh_time) ||
5056 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5057 cur_params.min_discovery_timeout) ||
5058 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5059 cur_params.dot11MeshHWMPactivePathTimeout) ||
5060 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5061 cur_params.dot11MeshHWMPpreqMinInterval) ||
5062 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5063 cur_params.dot11MeshHWMPperrMinInterval) ||
5064 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5065 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5066 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5067 cur_params.dot11MeshHWMPRootMode) ||
5068 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5069 cur_params.dot11MeshHWMPRannInterval) ||
5070 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5071 cur_params.dot11MeshGateAnnouncementProtocol) ||
5072 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5073 cur_params.dot11MeshForwarding) ||
5074 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5075 cur_params.rssi_threshold) ||
5076 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5077 cur_params.ht_opmode) ||
5078 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5079 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5080 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5081 cur_params.dot11MeshHWMProotInterval) ||
5082 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5083 cur_params.dot11MeshHWMPconfirmationInterval) ||
5084 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5085 cur_params.power_mode) ||
5086 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5087 cur_params.dot11MeshAwakeWindowDuration) ||
5088 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5089 cur_params.plink_timeout))
5090 goto nla_put_failure;
5091 nla_nest_end(msg, pinfoattr);
5092 genlmsg_end(msg, hdr);
5093 return genlmsg_reply(msg, info);
5096 genlmsg_cancel(msg, hdr);
5102 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5103 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5104 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5105 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5106 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5107 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5108 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5109 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5110 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5111 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5112 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5113 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5114 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5115 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5116 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5117 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5118 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5119 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5120 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5121 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5122 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5123 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5124 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5125 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5126 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5127 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5128 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5129 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5130 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5133 static const struct nla_policy
5134 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5135 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5136 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5137 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5138 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5139 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5140 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5141 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5142 .len = IEEE80211_MAX_DATA_LEN },
5143 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5146 static int nl80211_parse_mesh_config(struct genl_info *info,
5147 struct mesh_config *cfg,
5150 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5153 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5156 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5158 cfg->param = fn(tb[attr]); \
5159 mask |= (1 << (attr - 1)); \
5164 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5166 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5167 info->attrs[NL80211_ATTR_MESH_CONFIG],
5168 nl80211_meshconf_params_policy))
5171 /* This makes sure that there aren't more than 32 mesh config
5172 * parameters (otherwise our bitfield scheme would not work.) */
5173 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5175 /* Fill in the params struct */
5176 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5177 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5179 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5180 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5182 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5183 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5186 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5189 mask, NL80211_MESHCONF_MAX_RETRIES,
5191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5192 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5193 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5194 mask, NL80211_MESHCONF_ELEMENT_TTL,
5196 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5197 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5199 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5201 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5204 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5207 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5210 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5214 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5216 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5218 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5222 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5224 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5225 dot11MeshHWMPnetDiameterTraversalTime,
5227 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5230 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5233 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5236 dot11MeshGateAnnouncementProtocol, 0, 1,
5237 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5239 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5240 mask, NL80211_MESHCONF_FORWARDING,
5242 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5243 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5246 mask, NL80211_MESHCONF_HT_OPMODE,
5248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5250 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5252 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5253 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5255 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5256 dot11MeshHWMPconfirmationInterval,
5258 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5260 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5261 NL80211_MESH_POWER_ACTIVE,
5262 NL80211_MESH_POWER_MAX,
5263 mask, NL80211_MESHCONF_POWER_MODE,
5265 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5267 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5269 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5276 #undef FILL_IN_MESH_PARAM_IF_SET
5279 static int nl80211_parse_mesh_setup(struct genl_info *info,
5280 struct mesh_setup *setup)
5282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5283 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5285 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5287 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5288 info->attrs[NL80211_ATTR_MESH_SETUP],
5289 nl80211_mesh_setup_params_policy))
5292 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5293 setup->sync_method =
5294 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5295 IEEE80211_SYNC_METHOD_VENDOR :
5296 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5298 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5299 setup->path_sel_proto =
5300 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5301 IEEE80211_PATH_PROTOCOL_VENDOR :
5302 IEEE80211_PATH_PROTOCOL_HWMP;
5304 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5305 setup->path_metric =
5306 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5307 IEEE80211_PATH_METRIC_VENDOR :
5308 IEEE80211_PATH_METRIC_AIRTIME;
5311 if (tb[NL80211_MESH_SETUP_IE]) {
5312 struct nlattr *ieattr =
5313 tb[NL80211_MESH_SETUP_IE];
5314 if (!is_valid_ie_attr(ieattr))
5316 setup->ie = nla_data(ieattr);
5317 setup->ie_len = nla_len(ieattr);
5319 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5320 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5322 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5323 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5324 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5325 if (setup->is_secure)
5326 setup->user_mpm = true;
5328 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5329 if (!setup->user_mpm)
5332 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5338 static int nl80211_update_mesh_config(struct sk_buff *skb,
5339 struct genl_info *info)
5341 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5342 struct net_device *dev = info->user_ptr[1];
5343 struct wireless_dev *wdev = dev->ieee80211_ptr;
5344 struct mesh_config cfg;
5348 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5351 if (!rdev->ops->update_mesh_config)
5354 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5359 if (!wdev->mesh_id_len)
5363 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5370 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5371 struct sk_buff *msg)
5373 struct nlattr *nl_reg_rules;
5376 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5377 (regdom->dfs_region &&
5378 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5379 goto nla_put_failure;
5381 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5383 goto nla_put_failure;
5385 for (i = 0; i < regdom->n_reg_rules; i++) {
5386 struct nlattr *nl_reg_rule;
5387 const struct ieee80211_reg_rule *reg_rule;
5388 const struct ieee80211_freq_range *freq_range;
5389 const struct ieee80211_power_rule *power_rule;
5390 unsigned int max_bandwidth_khz;
5392 reg_rule = ®dom->reg_rules[i];
5393 freq_range = ®_rule->freq_range;
5394 power_rule = ®_rule->power_rule;
5396 nl_reg_rule = nla_nest_start(msg, i);
5398 goto nla_put_failure;
5400 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5401 if (!max_bandwidth_khz)
5402 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5405 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5407 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5408 freq_range->start_freq_khz) ||
5409 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5410 freq_range->end_freq_khz) ||
5411 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5412 max_bandwidth_khz) ||
5413 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5414 power_rule->max_antenna_gain) ||
5415 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5416 power_rule->max_eirp) ||
5417 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5418 reg_rule->dfs_cac_ms))
5419 goto nla_put_failure;
5421 nla_nest_end(msg, nl_reg_rule);
5424 nla_nest_end(msg, nl_reg_rules);
5431 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5433 const struct ieee80211_regdomain *regdom = NULL;
5434 struct cfg80211_registered_device *rdev;
5435 struct wiphy *wiphy = NULL;
5436 struct sk_buff *msg;
5439 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5443 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5444 NL80211_CMD_GET_REG);
5448 if (info->attrs[NL80211_ATTR_WIPHY]) {
5451 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5454 return PTR_ERR(rdev);
5457 wiphy = &rdev->wiphy;
5458 self_managed = wiphy->regulatory_flags &
5459 REGULATORY_WIPHY_SELF_MANAGED;
5460 regdom = get_wiphy_regdom(wiphy);
5462 /* a self-managed-reg device must have a private regdom */
5463 if (WARN_ON(!regdom && self_managed)) {
5469 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5470 goto nla_put_failure;
5473 if (!wiphy && reg_last_request_cell_base() &&
5474 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5475 NL80211_USER_REG_HINT_CELL_BASE))
5476 goto nla_put_failure;
5481 regdom = rcu_dereference(cfg80211_regdomain);
5483 if (nl80211_put_regdom(regdom, msg))
5484 goto nla_put_failure_rcu;
5488 genlmsg_end(msg, hdr);
5489 return genlmsg_reply(msg, info);
5491 nla_put_failure_rcu:
5494 genlmsg_cancel(msg, hdr);
5500 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5501 u32 seq, int flags, struct wiphy *wiphy,
5502 const struct ieee80211_regdomain *regdom)
5504 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5505 NL80211_CMD_GET_REG);
5510 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5512 if (nl80211_put_regdom(regdom, msg))
5513 goto nla_put_failure;
5515 if (!wiphy && reg_last_request_cell_base() &&
5516 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5517 NL80211_USER_REG_HINT_CELL_BASE))
5518 goto nla_put_failure;
5521 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5522 goto nla_put_failure;
5524 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5525 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5526 goto nla_put_failure;
5528 genlmsg_end(msg, hdr);
5532 genlmsg_cancel(msg, hdr);
5536 static int nl80211_get_reg_dump(struct sk_buff *skb,
5537 struct netlink_callback *cb)
5539 const struct ieee80211_regdomain *regdom = NULL;
5540 struct cfg80211_registered_device *rdev;
5541 int err, reg_idx, start = cb->args[2];
5545 if (cfg80211_regdomain && start == 0) {
5546 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5548 rtnl_dereference(cfg80211_regdomain));
5553 /* the global regdom is idx 0 */
5555 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5556 regdom = get_wiphy_regdom(&rdev->wiphy);
5560 if (++reg_idx <= start)
5563 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5564 NLM_F_MULTI, &rdev->wiphy, regdom);
5571 cb->args[2] = reg_idx;
5578 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
5579 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5580 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5581 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5582 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5583 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5584 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5585 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5586 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5589 static int parse_reg_rule(struct nlattr *tb[],
5590 struct ieee80211_reg_rule *reg_rule)
5592 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
5593 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
5595 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5597 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5599 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5601 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5603 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5606 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5608 freq_range->start_freq_khz =
5609 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5610 freq_range->end_freq_khz =
5611 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5612 freq_range->max_bandwidth_khz =
5613 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5615 power_rule->max_eirp =
5616 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5618 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5619 power_rule->max_antenna_gain =
5620 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5622 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5623 reg_rule->dfs_cac_ms =
5624 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5629 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5631 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5632 struct nlattr *nl_reg_rule;
5634 int rem_reg_rules, r;
5635 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5636 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5637 struct ieee80211_regdomain *rd;
5639 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5642 if (!info->attrs[NL80211_ATTR_REG_RULES])
5645 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5647 if (info->attrs[NL80211_ATTR_DFS_REGION])
5648 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5650 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5653 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5657 if (!reg_is_valid_request(alpha2))
5660 size_of_regd = sizeof(struct ieee80211_regdomain) +
5661 num_rules * sizeof(struct ieee80211_reg_rule);
5663 rd = kzalloc(size_of_regd, GFP_KERNEL);
5667 rd->n_reg_rules = num_rules;
5668 rd->alpha2[0] = alpha2[0];
5669 rd->alpha2[1] = alpha2[1];
5672 * Disable DFS master mode if the DFS region was
5673 * not supported or known on this kernel.
5675 if (reg_supported_dfs_region(dfs_region))
5676 rd->dfs_region = dfs_region;
5678 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5680 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5681 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5685 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5691 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5697 r = set_regdom(rd, REGD_SOURCE_CRDA);
5698 /* set_regdom took ownership */
5705 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
5707 static int validate_scan_freqs(struct nlattr *freqs)
5709 struct nlattr *attr1, *attr2;
5710 int n_channels = 0, tmp1, tmp2;
5712 nla_for_each_nested(attr1, freqs, tmp1) {
5715 * Some hardware has a limited channel list for
5716 * scanning, and it is pretty much nonsensical
5717 * to scan for a channel twice, so disallow that
5718 * and don't require drivers to check that the
5719 * channel list they get isn't longer than what
5720 * they can scan, as long as they can scan all
5721 * the channels they registered at once.
5723 nla_for_each_nested(attr2, freqs, tmp2)
5724 if (attr1 != attr2 &&
5725 nla_get_u32(attr1) == nla_get_u32(attr2))
5732 static int nl80211_parse_random_mac(struct nlattr **attrs,
5733 u8 *mac_addr, u8 *mac_addr_mask)
5737 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5738 eth_zero_addr(mac_addr);
5739 eth_zero_addr(mac_addr_mask);
5741 mac_addr_mask[0] = 0x3;
5746 /* need both or none */
5747 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5750 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5751 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5753 /* don't allow or configure an mcast address */
5754 if (!is_multicast_ether_addr(mac_addr_mask) ||
5755 is_multicast_ether_addr(mac_addr))
5759 * allow users to pass a MAC address that has bits set outside
5760 * of the mask, but don't bother drivers with having to deal
5763 for (i = 0; i < ETH_ALEN; i++)
5764 mac_addr[i] &= mac_addr_mask[i];
5769 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5772 struct wireless_dev *wdev = info->user_ptr[1];
5773 struct cfg80211_scan_request *request;
5774 struct nlattr *attr;
5775 struct wiphy *wiphy;
5776 int err, tmp, n_ssids = 0, n_channels, i;
5779 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5782 wiphy = &rdev->wiphy;
5784 if (!rdev->ops->scan)
5787 if (rdev->scan_req || rdev->scan_msg) {
5792 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5793 n_channels = validate_scan_freqs(
5794 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5800 n_channels = ieee80211_get_num_supported_channels(wiphy);
5803 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5804 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5807 if (n_ssids > wiphy->max_scan_ssids) {
5812 if (info->attrs[NL80211_ATTR_IE])
5813 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5817 if (ie_len > wiphy->max_scan_ie_len) {
5822 request = kzalloc(sizeof(*request)
5823 + sizeof(*request->ssids) * n_ssids
5824 + sizeof(*request->channels) * n_channels
5825 + ie_len, GFP_KERNEL);
5832 request->ssids = (void *)&request->channels[n_channels];
5833 request->n_ssids = n_ssids;
5836 request->ie = (void *)(request->ssids + n_ssids);
5838 request->ie = (void *)(request->channels + n_channels);
5842 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5843 /* user specified, bail out if channel not found */
5844 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5845 struct ieee80211_channel *chan;
5847 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5854 /* ignore disabled channels */
5855 if (chan->flags & IEEE80211_CHAN_DISABLED)
5858 request->channels[i] = chan;
5862 enum ieee80211_band band;
5865 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5867 if (!wiphy->bands[band])
5869 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5870 struct ieee80211_channel *chan;
5872 chan = &wiphy->bands[band]->channels[j];
5874 if (chan->flags & IEEE80211_CHAN_DISABLED)
5877 request->channels[i] = chan;
5888 request->n_channels = i;
5892 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5893 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5897 request->ssids[i].ssid_len = nla_len(attr);
5898 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5903 if (info->attrs[NL80211_ATTR_IE]) {
5904 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5905 memcpy((void *)request->ie,
5906 nla_data(info->attrs[NL80211_ATTR_IE]),
5910 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5911 if (wiphy->bands[i])
5913 (1 << wiphy->bands[i]->n_bitrates) - 1;
5915 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5916 nla_for_each_nested(attr,
5917 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5919 enum ieee80211_band band = nla_type(attr);
5921 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5926 if (!wiphy->bands[band])
5929 err = ieee80211_get_ratemask(wiphy->bands[band],
5932 &request->rates[band]);
5938 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5939 request->flags = nla_get_u32(
5940 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5941 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5942 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5947 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5948 if (!(wiphy->features &
5949 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5954 if (wdev->current_bss) {
5959 err = nl80211_parse_random_mac(info->attrs,
5961 request->mac_addr_mask);
5968 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5970 request->wdev = wdev;
5971 request->wiphy = &rdev->wiphy;
5972 request->scan_start = jiffies;
5974 rdev->scan_req = request;
5975 err = rdev_scan(rdev, request);
5978 nl80211_send_scan_start(rdev, wdev);
5980 dev_hold(wdev->netdev);
5983 rdev->scan_req = NULL;
5992 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
5993 struct cfg80211_sched_scan_request *request,
5994 struct nlattr **attrs)
5996 int tmp, err, i = 0;
5997 struct nlattr *attr;
5999 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6003 * If scan plans are not specified,
6004 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6005 * case one scan plan will be set with the specified scan
6006 * interval and infinite number of iterations.
6008 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6011 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6015 request->scan_plans[0].interval =
6016 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6017 if (!request->scan_plans[0].interval)
6020 if (request->scan_plans[0].interval >
6021 wiphy->max_sched_scan_plan_interval)
6022 request->scan_plans[0].interval =
6023 wiphy->max_sched_scan_plan_interval;
6028 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6029 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6031 if (WARN_ON(i >= n_plans))
6034 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6035 nla_data(attr), nla_len(attr),
6036 nl80211_plan_policy);
6040 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6043 request->scan_plans[i].interval =
6044 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6045 if (!request->scan_plans[i].interval ||
6046 request->scan_plans[i].interval >
6047 wiphy->max_sched_scan_plan_interval)
6050 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6051 request->scan_plans[i].iterations =
6052 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6053 if (!request->scan_plans[i].iterations ||
6054 (request->scan_plans[i].iterations >
6055 wiphy->max_sched_scan_plan_iterations))
6057 } else if (i < n_plans - 1) {
6059 * All scan plans but the last one must specify
6060 * a finite number of iterations
6069 * The last scan plan must not specify the number of
6070 * iterations, it is supposed to run infinitely
6072 if (request->scan_plans[n_plans - 1].iterations)
6078 static struct cfg80211_sched_scan_request *
6079 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6080 struct nlattr **attrs)
6082 struct cfg80211_sched_scan_request *request;
6083 struct nlattr *attr;
6084 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6085 enum ieee80211_band band;
6087 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6088 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6090 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6091 return ERR_PTR(-EINVAL);
6093 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6094 n_channels = validate_scan_freqs(
6095 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6097 return ERR_PTR(-EINVAL);
6099 n_channels = ieee80211_get_num_supported_channels(wiphy);
6102 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6103 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6107 if (n_ssids > wiphy->max_sched_scan_ssids)
6108 return ERR_PTR(-EINVAL);
6111 * First, count the number of 'real' matchsets. Due to an issue with
6112 * the old implementation, matchsets containing only the RSSI attribute
6113 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6114 * RSSI for all matchsets, rather than their own matchset for reporting
6115 * all APs with a strong RSSI. This is needed to be compatible with
6116 * older userspace that treated a matchset with only the RSSI as the
6117 * global RSSI for all other matchsets - if there are other matchsets.
6119 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6120 nla_for_each_nested(attr,
6121 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6123 struct nlattr *rssi;
6125 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6126 nla_data(attr), nla_len(attr),
6127 nl80211_match_policy);
6129 return ERR_PTR(err);
6130 /* add other standalone attributes here */
6131 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6135 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6137 default_match_rssi = nla_get_s32(rssi);
6141 /* However, if there's no other matchset, add the RSSI one */
6142 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6145 if (n_match_sets > wiphy->max_match_sets)
6146 return ERR_PTR(-EINVAL);
6148 if (attrs[NL80211_ATTR_IE])
6149 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6153 if (ie_len > wiphy->max_sched_scan_ie_len)
6154 return ERR_PTR(-EINVAL);
6156 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6158 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6159 * each scan plan already specifies its own interval
6161 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6162 return ERR_PTR(-EINVAL);
6164 nla_for_each_nested(attr,
6165 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6169 * The scan interval attribute is kept for backward
6170 * compatibility. If no scan plans are specified and sched scan
6171 * interval is specified, one scan plan will be set with this
6172 * scan interval and infinite number of iterations.
6174 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6175 return ERR_PTR(-EINVAL);
6180 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6181 return ERR_PTR(-EINVAL);
6183 request = kzalloc(sizeof(*request)
6184 + sizeof(*request->ssids) * n_ssids
6185 + sizeof(*request->match_sets) * n_match_sets
6186 + sizeof(*request->scan_plans) * n_plans
6187 + sizeof(*request->channels) * n_channels
6188 + ie_len, GFP_KERNEL);
6190 return ERR_PTR(-ENOMEM);
6193 request->ssids = (void *)&request->channels[n_channels];
6194 request->n_ssids = n_ssids;
6197 request->ie = (void *)(request->ssids + n_ssids);
6199 request->ie = (void *)(request->channels + n_channels);
6204 request->match_sets = (void *)(request->ie + ie_len);
6206 request->match_sets =
6207 (void *)(request->ssids + n_ssids);
6209 request->match_sets =
6210 (void *)(request->channels + n_channels);
6212 request->n_match_sets = n_match_sets;
6215 request->scan_plans = (void *)(request->match_sets +
6217 else if (request->ie)
6218 request->scan_plans = (void *)(request->ie + ie_len);
6220 request->scan_plans = (void *)(request->ssids + n_ssids);
6222 request->scan_plans = (void *)(request->channels + n_channels);
6224 request->n_scan_plans = n_plans;
6227 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6228 /* user specified, bail out if channel not found */
6229 nla_for_each_nested(attr,
6230 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6232 struct ieee80211_channel *chan;
6234 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6241 /* ignore disabled channels */
6242 if (chan->flags & IEEE80211_CHAN_DISABLED)
6245 request->channels[i] = chan;
6250 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6252 if (!wiphy->bands[band])
6254 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6255 struct ieee80211_channel *chan;
6257 chan = &wiphy->bands[band]->channels[j];
6259 if (chan->flags & IEEE80211_CHAN_DISABLED)
6262 request->channels[i] = chan;
6273 request->n_channels = i;
6277 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6279 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6283 request->ssids[i].ssid_len = nla_len(attr);
6284 memcpy(request->ssids[i].ssid, nla_data(attr),
6291 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6292 nla_for_each_nested(attr,
6293 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6295 struct nlattr *ssid, *rssi;
6297 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6298 nla_data(attr), nla_len(attr),
6299 nl80211_match_policy);
6302 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6304 if (WARN_ON(i >= n_match_sets)) {
6305 /* this indicates a programming error,
6306 * the loop above should have verified
6313 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6317 memcpy(request->match_sets[i].ssid.ssid,
6318 nla_data(ssid), nla_len(ssid));
6319 request->match_sets[i].ssid.ssid_len =
6321 /* special attribute - old implemenation w/a */
6322 request->match_sets[i].rssi_thold =
6324 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6326 request->match_sets[i].rssi_thold =
6332 /* there was no other matchset, so the RSSI one is alone */
6333 if (i == 0 && n_match_sets)
6334 request->match_sets[0].rssi_thold = default_match_rssi;
6336 request->min_rssi_thold = INT_MAX;
6337 for (i = 0; i < n_match_sets; i++)
6338 request->min_rssi_thold =
6339 min(request->match_sets[i].rssi_thold,
6340 request->min_rssi_thold);
6342 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6346 request->ie_len = ie_len;
6347 memcpy((void *)request->ie,
6348 nla_data(attrs[NL80211_ATTR_IE]),
6352 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6353 request->flags = nla_get_u32(
6354 attrs[NL80211_ATTR_SCAN_FLAGS]);
6355 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6356 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6361 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6362 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6364 if (!wdev) /* must be net-detect */
6365 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6367 if (!(wiphy->features & flg)) {
6372 if (wdev && wdev->current_bss) {
6377 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6378 request->mac_addr_mask);
6384 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6386 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6388 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6392 request->scan_start = jiffies;
6398 return ERR_PTR(err);
6401 static int nl80211_start_sched_scan(struct sk_buff *skb,
6402 struct genl_info *info)
6404 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6405 struct net_device *dev = info->user_ptr[1];
6406 struct wireless_dev *wdev = dev->ieee80211_ptr;
6407 struct cfg80211_sched_scan_request *sched_scan_req;
6410 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6411 !rdev->ops->sched_scan_start)
6414 if (rdev->sched_scan_req)
6415 return -EINPROGRESS;
6417 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6420 err = PTR_ERR_OR_ZERO(sched_scan_req);
6424 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6428 sched_scan_req->dev = dev;
6429 sched_scan_req->wiphy = &rdev->wiphy;
6431 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6432 sched_scan_req->owner_nlportid = info->snd_portid;
6434 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6436 nl80211_send_sched_scan(rdev, dev,
6437 NL80211_CMD_START_SCHED_SCAN);
6441 kfree(sched_scan_req);
6446 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6447 struct genl_info *info)
6449 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6451 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6452 !rdev->ops->sched_scan_stop)
6455 return __cfg80211_stop_sched_scan(rdev, false);
6458 static int nl80211_start_radar_detection(struct sk_buff *skb,
6459 struct genl_info *info)
6461 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6462 struct net_device *dev = info->user_ptr[1];
6463 struct wireless_dev *wdev = dev->ieee80211_ptr;
6464 struct cfg80211_chan_def chandef;
6465 enum nl80211_dfs_regions dfs_region;
6466 unsigned int cac_time_ms;
6469 dfs_region = reg_get_dfs_region(wdev->wiphy);
6470 if (dfs_region == NL80211_DFS_UNSET)
6473 err = nl80211_parse_chandef(rdev, info, &chandef);
6477 if (netif_carrier_ok(dev))
6480 if (wdev->cac_started)
6483 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6491 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6494 if (!rdev->ops->start_radar_detection)
6497 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6498 if (WARN_ON(!cac_time_ms))
6499 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6501 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6504 wdev->chandef = chandef;
6505 wdev->cac_started = true;
6506 wdev->cac_start_time = jiffies;
6507 wdev->cac_time_ms = cac_time_ms;
6512 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6514 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6515 struct net_device *dev = info->user_ptr[1];
6516 struct wireless_dev *wdev = dev->ieee80211_ptr;
6517 struct cfg80211_csa_settings params;
6518 /* csa_attrs is defined static to avoid waste of stack size - this
6519 * function is called under RTNL lock, so this should not be a problem.
6521 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6523 bool need_new_beacon = false;
6527 if (!rdev->ops->channel_switch ||
6528 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6531 switch (dev->ieee80211_ptr->iftype) {
6532 case NL80211_IFTYPE_AP:
6533 case NL80211_IFTYPE_P2P_GO:
6534 need_new_beacon = true;
6536 /* useless if AP is not running */
6537 if (!wdev->beacon_interval)
6540 case NL80211_IFTYPE_ADHOC:
6541 if (!wdev->ssid_len)
6544 case NL80211_IFTYPE_MESH_POINT:
6545 if (!wdev->mesh_id_len)
6552 memset(¶ms, 0, sizeof(params));
6554 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6555 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6558 /* only important for AP, IBSS and mesh create IEs internally */
6559 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6562 /* Even though the attribute is u32, the specification says
6563 * u8, so let's make sure we don't overflow.
6565 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6569 params.count = cs_count;
6571 if (!need_new_beacon)
6574 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6578 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6579 info->attrs[NL80211_ATTR_CSA_IES],
6584 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6588 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6591 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6592 if (!len || (len % sizeof(u16)))
6595 params.n_counter_offsets_beacon = len / sizeof(u16);
6596 if (rdev->wiphy.max_num_csa_counters &&
6597 (params.n_counter_offsets_beacon >
6598 rdev->wiphy.max_num_csa_counters))
6601 params.counter_offsets_beacon =
6602 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6604 /* sanity checks - counters should fit and be the same */
6605 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6606 u16 offset = params.counter_offsets_beacon[i];
6608 if (offset >= params.beacon_csa.tail_len)
6611 if (params.beacon_csa.tail[offset] != params.count)
6615 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6616 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6617 if (!len || (len % sizeof(u16)))
6620 params.n_counter_offsets_presp = len / sizeof(u16);
6621 if (rdev->wiphy.max_num_csa_counters &&
6622 (params.n_counter_offsets_beacon >
6623 rdev->wiphy.max_num_csa_counters))
6626 params.counter_offsets_presp =
6627 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6629 /* sanity checks - counters should fit and be the same */
6630 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6631 u16 offset = params.counter_offsets_presp[i];
6633 if (offset >= params.beacon_csa.probe_resp_len)
6636 if (params.beacon_csa.probe_resp[offset] !=
6643 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6647 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6651 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6658 params.radar_required = true;
6660 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6661 params.block_tx = true;
6664 err = rdev_channel_switch(rdev, dev, ¶ms);
6670 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6672 struct cfg80211_registered_device *rdev,
6673 struct wireless_dev *wdev,
6674 struct cfg80211_internal_bss *intbss)
6676 struct cfg80211_bss *res = &intbss->pub;
6677 const struct cfg80211_bss_ies *ies;
6681 ASSERT_WDEV_LOCK(wdev);
6683 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6684 NL80211_CMD_NEW_SCAN_RESULTS);
6688 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6690 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6691 goto nla_put_failure;
6693 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6694 goto nla_put_failure;
6695 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6696 goto nla_put_failure;
6698 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6700 goto nla_put_failure;
6701 if ((!is_zero_ether_addr(res->bssid) &&
6702 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6703 goto nla_put_failure;
6706 /* indicate whether we have probe response data or not */
6707 if (rcu_access_pointer(res->proberesp_ies) &&
6708 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6709 goto fail_unlock_rcu;
6711 /* this pointer prefers to be pointed to probe response data
6712 * but is always valid
6714 ies = rcu_dereference(res->ies);
6716 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6717 goto fail_unlock_rcu;
6718 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6719 ies->len, ies->data))
6720 goto fail_unlock_rcu;
6723 /* and this pointer is always (unless driver didn't know) beacon data */
6724 ies = rcu_dereference(res->beacon_ies);
6725 if (ies && ies->from_beacon) {
6726 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6727 goto fail_unlock_rcu;
6728 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6729 ies->len, ies->data))
6730 goto fail_unlock_rcu;
6734 if (res->beacon_interval &&
6735 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6736 goto nla_put_failure;
6737 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6738 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6739 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6740 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6741 jiffies_to_msecs(jiffies - intbss->ts)))
6742 goto nla_put_failure;
6744 if (intbss->ts_boottime &&
6745 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6746 intbss->ts_boottime))
6747 goto nla_put_failure;
6749 switch (rdev->wiphy.signal_type) {
6750 case CFG80211_SIGNAL_TYPE_MBM:
6751 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6752 goto nla_put_failure;
6754 case CFG80211_SIGNAL_TYPE_UNSPEC:
6755 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6756 goto nla_put_failure;
6762 switch (wdev->iftype) {
6763 case NL80211_IFTYPE_P2P_CLIENT:
6764 case NL80211_IFTYPE_STATION:
6765 if (intbss == wdev->current_bss &&
6766 nla_put_u32(msg, NL80211_BSS_STATUS,
6767 NL80211_BSS_STATUS_ASSOCIATED))
6768 goto nla_put_failure;
6770 case NL80211_IFTYPE_ADHOC:
6771 if (intbss == wdev->current_bss &&
6772 nla_put_u32(msg, NL80211_BSS_STATUS,
6773 NL80211_BSS_STATUS_IBSS_JOINED))
6774 goto nla_put_failure;
6780 nla_nest_end(msg, bss);
6782 genlmsg_end(msg, hdr);
6788 genlmsg_cancel(msg, hdr);
6792 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6794 struct cfg80211_registered_device *rdev;
6795 struct cfg80211_internal_bss *scan;
6796 struct wireless_dev *wdev;
6797 int start = cb->args[2], idx = 0;
6800 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6805 spin_lock_bh(&rdev->bss_lock);
6806 cfg80211_bss_expire(rdev);
6808 cb->seq = rdev->bss_generation;
6810 list_for_each_entry(scan, &rdev->bss_list, list) {
6813 if (nl80211_send_bss(skb, cb,
6814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6815 rdev, wdev, scan) < 0) {
6821 spin_unlock_bh(&rdev->bss_lock);
6825 nl80211_finish_wdev_dump(rdev);
6830 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6831 int flags, struct net_device *dev,
6832 bool allow_radio_stats,
6833 struct survey_info *survey)
6836 struct nlattr *infoattr;
6838 /* skip radio stats if userspace didn't request them */
6839 if (!survey->channel && !allow_radio_stats)
6842 hdr = nl80211hdr_put(msg, portid, seq, flags,
6843 NL80211_CMD_NEW_SURVEY_RESULTS);
6847 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6848 goto nla_put_failure;
6850 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6852 goto nla_put_failure;
6854 if (survey->channel &&
6855 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6856 survey->channel->center_freq))
6857 goto nla_put_failure;
6859 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6860 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6861 goto nla_put_failure;
6862 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6863 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6864 goto nla_put_failure;
6865 if ((survey->filled & SURVEY_INFO_TIME) &&
6866 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6868 goto nla_put_failure;
6869 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6870 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6872 goto nla_put_failure;
6873 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6874 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6875 survey->time_ext_busy))
6876 goto nla_put_failure;
6877 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6878 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6880 goto nla_put_failure;
6881 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6882 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6884 goto nla_put_failure;
6885 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6886 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6888 goto nla_put_failure;
6890 nla_nest_end(msg, infoattr);
6892 genlmsg_end(msg, hdr);
6896 genlmsg_cancel(msg, hdr);
6900 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
6902 struct survey_info survey;
6903 struct cfg80211_registered_device *rdev;
6904 struct wireless_dev *wdev;
6905 int survey_idx = cb->args[2];
6909 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6913 /* prepare_wdev_dump parsed the attributes */
6914 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6916 if (!wdev->netdev) {
6921 if (!rdev->ops->dump_survey) {
6927 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6933 /* don't send disabled channels, but do send non-channel data */
6934 if (survey.channel &&
6935 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
6940 if (nl80211_send_survey(skb,
6941 NETLINK_CB(cb->skb).portid,
6942 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6943 wdev->netdev, radio_stats, &survey) < 0)
6949 cb->args[2] = survey_idx;
6952 nl80211_finish_wdev_dump(rdev);
6956 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6958 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6959 NL80211_WPA_VERSION_2));
6962 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6964 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6965 struct net_device *dev = info->user_ptr[1];
6966 struct ieee80211_channel *chan;
6967 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6968 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6969 enum nl80211_auth_type auth_type;
6970 struct key_parse key;
6971 bool local_state_change;
6973 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6976 if (!info->attrs[NL80211_ATTR_MAC])
6979 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6982 if (!info->attrs[NL80211_ATTR_SSID])
6985 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6988 err = nl80211_parse_key(info, &key);
6993 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6995 if (!key.p.key || !key.p.key_len)
6997 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6998 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6999 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7000 key.p.key_len != WLAN_KEY_LEN_WEP104))
7012 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7013 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7022 if (!rdev->ops->auth)
7025 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7026 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7029 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7030 chan = nl80211_get_valid_chan(&rdev->wiphy,
7031 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7035 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7036 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7038 if (info->attrs[NL80211_ATTR_IE]) {
7039 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7040 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7043 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7044 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7047 if (auth_type == NL80211_AUTHTYPE_SAE &&
7048 !info->attrs[NL80211_ATTR_SAE_DATA])
7051 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7052 if (auth_type != NL80211_AUTHTYPE_SAE)
7054 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7055 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7056 /* need to include at least Auth Transaction and Status Code */
7057 if (sae_data_len < 4)
7061 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7064 * Since we no longer track auth state, ignore
7065 * requests to only change local state.
7067 if (local_state_change)
7070 wdev_lock(dev->ieee80211_ptr);
7071 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7072 ssid, ssid_len, ie, ie_len,
7073 key.p.key, key.p.key_len, key.idx,
7074 sae_data, sae_data_len);
7075 wdev_unlock(dev->ieee80211_ptr);
7079 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7080 struct genl_info *info,
7081 struct cfg80211_crypto_settings *settings,
7084 memset(settings, 0, sizeof(*settings));
7086 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7088 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7090 proto = nla_get_u16(
7091 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7092 settings->control_port_ethertype = cpu_to_be16(proto);
7093 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7096 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7097 settings->control_port_no_encrypt = true;
7099 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7101 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7105 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7106 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7107 settings->n_ciphers_pairwise = len / sizeof(u32);
7109 if (len % sizeof(u32))
7112 if (settings->n_ciphers_pairwise > cipher_limit)
7115 memcpy(settings->ciphers_pairwise, data, len);
7117 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7118 if (!cfg80211_supported_cipher_suite(
7120 settings->ciphers_pairwise[i]))
7124 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7125 settings->cipher_group =
7126 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7127 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7128 settings->cipher_group))
7132 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7133 settings->wpa_versions =
7134 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7135 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7139 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7143 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7144 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7145 settings->n_akm_suites = len / sizeof(u32);
7147 if (len % sizeof(u32))
7150 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7153 memcpy(settings->akm_suites, data, len);
7159 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7161 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7162 struct net_device *dev = info->user_ptr[1];
7163 struct ieee80211_channel *chan;
7164 struct cfg80211_assoc_request req = {};
7165 const u8 *bssid, *ssid;
7166 int err, ssid_len = 0;
7168 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7171 if (!info->attrs[NL80211_ATTR_MAC] ||
7172 !info->attrs[NL80211_ATTR_SSID] ||
7173 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7176 if (!rdev->ops->assoc)
7179 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7180 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7183 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7185 chan = nl80211_get_valid_chan(&rdev->wiphy,
7186 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7190 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7191 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7193 if (info->attrs[NL80211_ATTR_IE]) {
7194 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7195 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7198 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7199 enum nl80211_mfp mfp =
7200 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7201 if (mfp == NL80211_MFP_REQUIRED)
7203 else if (mfp != NL80211_MFP_NO)
7207 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7208 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7210 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7211 req.flags |= ASSOC_REQ_DISABLE_HT;
7213 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7214 memcpy(&req.ht_capa_mask,
7215 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7216 sizeof(req.ht_capa_mask));
7218 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7219 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7221 memcpy(&req.ht_capa,
7222 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7223 sizeof(req.ht_capa));
7226 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7227 req.flags |= ASSOC_REQ_DISABLE_VHT;
7229 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7230 memcpy(&req.vht_capa_mask,
7231 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7232 sizeof(req.vht_capa_mask));
7234 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7235 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7237 memcpy(&req.vht_capa,
7238 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7239 sizeof(req.vht_capa));
7242 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7243 if (!(rdev->wiphy.features &
7244 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7245 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7247 req.flags |= ASSOC_REQ_USE_RRM;
7250 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7252 wdev_lock(dev->ieee80211_ptr);
7253 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7254 ssid, ssid_len, &req);
7255 wdev_unlock(dev->ieee80211_ptr);
7261 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7263 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7264 struct net_device *dev = info->user_ptr[1];
7265 const u8 *ie = NULL, *bssid;
7266 int ie_len = 0, err;
7268 bool local_state_change;
7270 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7273 if (!info->attrs[NL80211_ATTR_MAC])
7276 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7279 if (!rdev->ops->deauth)
7282 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7283 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7286 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7288 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7289 if (reason_code == 0) {
7290 /* Reason Code 0 is reserved */
7294 if (info->attrs[NL80211_ATTR_IE]) {
7295 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7296 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7299 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7301 wdev_lock(dev->ieee80211_ptr);
7302 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7303 local_state_change);
7304 wdev_unlock(dev->ieee80211_ptr);
7308 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7310 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7311 struct net_device *dev = info->user_ptr[1];
7312 const u8 *ie = NULL, *bssid;
7313 int ie_len = 0, err;
7315 bool local_state_change;
7317 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7320 if (!info->attrs[NL80211_ATTR_MAC])
7323 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7326 if (!rdev->ops->disassoc)
7329 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7330 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7333 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7335 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7336 if (reason_code == 0) {
7337 /* Reason Code 0 is reserved */
7341 if (info->attrs[NL80211_ATTR_IE]) {
7342 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7343 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7346 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7348 wdev_lock(dev->ieee80211_ptr);
7349 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7350 local_state_change);
7351 wdev_unlock(dev->ieee80211_ptr);
7356 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7357 int mcast_rate[IEEE80211_NUM_BANDS],
7360 struct wiphy *wiphy = &rdev->wiphy;
7364 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7365 struct ieee80211_supported_band *sband;
7367 sband = wiphy->bands[band];
7371 for (i = 0; i < sband->n_bitrates; i++) {
7372 if (sband->bitrates[i].bitrate == rateval) {
7373 mcast_rate[band] = i + 1;
7383 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7386 struct net_device *dev = info->user_ptr[1];
7387 struct cfg80211_ibss_params ibss;
7388 struct wiphy *wiphy;
7389 struct cfg80211_cached_keys *connkeys = NULL;
7392 memset(&ibss, 0, sizeof(ibss));
7394 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7397 if (!info->attrs[NL80211_ATTR_SSID] ||
7398 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7401 ibss.beacon_interval = 100;
7403 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7404 ibss.beacon_interval =
7405 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7406 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7410 if (!rdev->ops->join_ibss)
7413 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7416 wiphy = &rdev->wiphy;
7418 if (info->attrs[NL80211_ATTR_MAC]) {
7419 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7421 if (!is_valid_ether_addr(ibss.bssid))
7424 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7425 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7427 if (info->attrs[NL80211_ATTR_IE]) {
7428 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7429 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7432 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7436 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7437 NL80211_IFTYPE_ADHOC))
7440 switch (ibss.chandef.width) {
7441 case NL80211_CHAN_WIDTH_5:
7442 case NL80211_CHAN_WIDTH_10:
7443 case NL80211_CHAN_WIDTH_20_NOHT:
7445 case NL80211_CHAN_WIDTH_20:
7446 case NL80211_CHAN_WIDTH_40:
7447 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7450 case NL80211_CHAN_WIDTH_80:
7451 case NL80211_CHAN_WIDTH_80P80:
7452 case NL80211_CHAN_WIDTH_160:
7453 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7455 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7456 NL80211_EXT_FEATURE_VHT_IBSS))
7463 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7464 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7466 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7468 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7470 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7471 struct ieee80211_supported_band *sband =
7472 wiphy->bands[ibss.chandef.chan->band];
7474 err = ieee80211_get_ratemask(sband, rates, n_rates,
7480 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7481 memcpy(&ibss.ht_capa_mask,
7482 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7483 sizeof(ibss.ht_capa_mask));
7485 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7486 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7488 memcpy(&ibss.ht_capa,
7489 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7490 sizeof(ibss.ht_capa));
7493 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7494 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7495 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7498 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7501 connkeys = nl80211_parse_connkeys(rdev,
7502 info->attrs[NL80211_ATTR_KEYS],
7504 if (IS_ERR(connkeys))
7505 return PTR_ERR(connkeys);
7507 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7515 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7517 ibss.userspace_handles_dfs =
7518 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7520 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7526 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7529 struct net_device *dev = info->user_ptr[1];
7531 if (!rdev->ops->leave_ibss)
7534 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7537 return cfg80211_leave_ibss(rdev, dev, false);
7540 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7542 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7543 struct net_device *dev = info->user_ptr[1];
7544 int mcast_rate[IEEE80211_NUM_BANDS];
7548 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7549 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7550 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7553 if (!rdev->ops->set_mcast_rate)
7556 memset(mcast_rate, 0, sizeof(mcast_rate));
7558 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7561 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7562 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7565 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7570 static struct sk_buff *
7571 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7572 struct wireless_dev *wdev, int approxlen,
7573 u32 portid, u32 seq, enum nl80211_commands cmd,
7574 enum nl80211_attrs attr,
7575 const struct nl80211_vendor_cmd_info *info,
7578 struct sk_buff *skb;
7580 struct nlattr *data;
7582 skb = nlmsg_new(approxlen + 100, gfp);
7586 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7592 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7593 goto nla_put_failure;
7596 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7598 goto nla_put_failure;
7599 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7601 goto nla_put_failure;
7605 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7607 goto nla_put_failure;
7609 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7610 wdev->netdev->ifindex))
7611 goto nla_put_failure;
7614 data = nla_nest_start(skb, attr);
7616 ((void **)skb->cb)[0] = rdev;
7617 ((void **)skb->cb)[1] = hdr;
7618 ((void **)skb->cb)[2] = data;
7627 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7628 struct wireless_dev *wdev,
7629 enum nl80211_commands cmd,
7630 enum nl80211_attrs attr,
7631 int vendor_event_idx,
7632 int approxlen, gfp_t gfp)
7634 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7635 const struct nl80211_vendor_cmd_info *info;
7638 case NL80211_CMD_TESTMODE:
7639 if (WARN_ON(vendor_event_idx != -1))
7643 case NL80211_CMD_VENDOR:
7644 if (WARN_ON(vendor_event_idx < 0 ||
7645 vendor_event_idx >= wiphy->n_vendor_events))
7647 info = &wiphy->vendor_events[vendor_event_idx];
7654 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
7655 cmd, attr, info, gfp);
7657 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7659 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7661 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7662 void *hdr = ((void **)skb->cb)[1];
7663 struct nlattr *data = ((void **)skb->cb)[2];
7664 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7666 /* clear CB data for netlink core to own from now on */
7667 memset(skb->cb, 0, sizeof(skb->cb));
7669 nla_nest_end(skb, data);
7670 genlmsg_end(skb, hdr);
7672 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7673 mcgrp = NL80211_MCGRP_VENDOR;
7675 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7678 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7680 #ifdef CONFIG_NL80211_TESTMODE
7681 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7684 struct wireless_dev *wdev =
7685 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7688 if (!rdev->ops->testmode_cmd)
7692 err = PTR_ERR(wdev);
7696 } else if (wdev->wiphy != &rdev->wiphy) {
7700 if (!info->attrs[NL80211_ATTR_TESTDATA])
7703 rdev->cur_cmd_info = info;
7704 err = rdev_testmode_cmd(rdev, wdev,
7705 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7706 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7707 rdev->cur_cmd_info = NULL;
7712 static int nl80211_testmode_dump(struct sk_buff *skb,
7713 struct netlink_callback *cb)
7715 struct cfg80211_registered_device *rdev;
7725 * 0 is a valid index, but not valid for args[0],
7726 * so we need to offset by 1.
7728 phy_idx = cb->args[0] - 1;
7730 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7731 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7736 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7737 nl80211_fam.attrbuf);
7739 err = PTR_ERR(rdev);
7742 phy_idx = rdev->wiphy_idx;
7745 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7747 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7751 data = nla_data((void *)cb->args[1]);
7752 data_len = nla_len((void *)cb->args[1]);
7755 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7761 if (!rdev->ops->testmode_dump) {
7767 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7768 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7769 NL80211_CMD_TESTMODE);
7770 struct nlattr *tmdata;
7775 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7776 genlmsg_cancel(skb, hdr);
7780 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7782 genlmsg_cancel(skb, hdr);
7785 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7786 nla_nest_end(skb, tmdata);
7788 if (err == -ENOBUFS || err == -ENOENT) {
7789 genlmsg_cancel(skb, hdr);
7792 genlmsg_cancel(skb, hdr);
7796 genlmsg_end(skb, hdr);
7801 cb->args[0] = phy_idx + 1;
7808 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7811 struct net_device *dev = info->user_ptr[1];
7812 struct cfg80211_connect_params connect;
7813 struct wiphy *wiphy;
7814 struct cfg80211_cached_keys *connkeys = NULL;
7817 memset(&connect, 0, sizeof(connect));
7819 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7822 if (!info->attrs[NL80211_ATTR_SSID] ||
7823 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7826 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7828 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7829 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7830 NL80211_CMD_CONNECT))
7833 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7835 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7837 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7838 NL80211_MAX_NR_CIPHER_SUITES);
7842 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7843 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7846 wiphy = &rdev->wiphy;
7848 connect.bg_scan_period = -1;
7849 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7850 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7851 connect.bg_scan_period =
7852 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7855 if (info->attrs[NL80211_ATTR_MAC])
7856 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7857 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7858 connect.bssid_hint =
7859 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7860 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7861 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7863 if (info->attrs[NL80211_ATTR_IE]) {
7864 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7865 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7868 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7869 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7870 if (connect.mfp != NL80211_MFP_REQUIRED &&
7871 connect.mfp != NL80211_MFP_NO)
7874 connect.mfp = NL80211_MFP_NO;
7877 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7878 connect.channel = nl80211_get_valid_chan(
7879 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7880 if (!connect.channel)
7882 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7883 connect.channel_hint = nl80211_get_valid_chan(
7884 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7885 if (!connect.channel_hint)
7889 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7890 connkeys = nl80211_parse_connkeys(rdev,
7891 info->attrs[NL80211_ATTR_KEYS], NULL);
7892 if (IS_ERR(connkeys))
7893 return PTR_ERR(connkeys);
7896 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7897 connect.flags |= ASSOC_REQ_DISABLE_HT;
7899 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7900 memcpy(&connect.ht_capa_mask,
7901 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7902 sizeof(connect.ht_capa_mask));
7904 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7905 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7909 memcpy(&connect.ht_capa,
7910 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7911 sizeof(connect.ht_capa));
7914 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7915 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7917 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7918 memcpy(&connect.vht_capa_mask,
7919 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7920 sizeof(connect.vht_capa_mask));
7922 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7923 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7927 memcpy(&connect.vht_capa,
7928 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7929 sizeof(connect.vht_capa));
7932 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7933 if (!(rdev->wiphy.features &
7934 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7935 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7937 connect.flags |= ASSOC_REQ_USE_RRM;
7940 wdev_lock(dev->ieee80211_ptr);
7941 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7942 wdev_unlock(dev->ieee80211_ptr);
7948 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7950 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7951 struct net_device *dev = info->user_ptr[1];
7955 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7956 reason = WLAN_REASON_DEAUTH_LEAVING;
7958 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7963 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7964 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7967 wdev_lock(dev->ieee80211_ptr);
7968 ret = cfg80211_disconnect(rdev, dev, reason, true);
7969 wdev_unlock(dev->ieee80211_ptr);
7973 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7975 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7979 if (info->attrs[NL80211_ATTR_PID]) {
7980 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7982 net = get_net_ns_by_pid(pid);
7983 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7984 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
7986 net = get_net_ns_by_fd(fd);
7992 return PTR_ERR(net);
7996 /* check if anything to do */
7997 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7998 err = cfg80211_switch_netns(rdev, net);
8004 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8007 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8008 struct cfg80211_pmksa *pmksa) = NULL;
8009 struct net_device *dev = info->user_ptr[1];
8010 struct cfg80211_pmksa pmksa;
8012 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8014 if (!info->attrs[NL80211_ATTR_MAC])
8017 if (!info->attrs[NL80211_ATTR_PMKID])
8020 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8021 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8023 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8024 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8027 switch (info->genlhdr->cmd) {
8028 case NL80211_CMD_SET_PMKSA:
8029 rdev_ops = rdev->ops->set_pmksa;
8031 case NL80211_CMD_DEL_PMKSA:
8032 rdev_ops = rdev->ops->del_pmksa;
8042 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8045 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8047 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8048 struct net_device *dev = info->user_ptr[1];
8050 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8051 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8054 if (!rdev->ops->flush_pmksa)
8057 return rdev_flush_pmksa(rdev, dev);
8060 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8063 struct net_device *dev = info->user_ptr[1];
8064 u8 action_code, dialog_token;
8065 u32 peer_capability = 0;
8070 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8071 !rdev->ops->tdls_mgmt)
8074 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8075 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8076 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8077 !info->attrs[NL80211_ATTR_IE] ||
8078 !info->attrs[NL80211_ATTR_MAC])
8081 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8082 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8083 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8084 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8085 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8086 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8088 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8090 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8091 dialog_token, status_code, peer_capability,
8093 nla_data(info->attrs[NL80211_ATTR_IE]),
8094 nla_len(info->attrs[NL80211_ATTR_IE]));
8097 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8099 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8100 struct net_device *dev = info->user_ptr[1];
8101 enum nl80211_tdls_operation operation;
8104 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8105 !rdev->ops->tdls_oper)
8108 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8109 !info->attrs[NL80211_ATTR_MAC])
8112 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8113 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8115 return rdev_tdls_oper(rdev, dev, peer, operation);
8118 static int nl80211_remain_on_channel(struct sk_buff *skb,
8119 struct genl_info *info)
8121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8122 struct wireless_dev *wdev = info->user_ptr[1];
8123 struct cfg80211_chan_def chandef;
8124 struct sk_buff *msg;
8130 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8131 !info->attrs[NL80211_ATTR_DURATION])
8134 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8136 if (!rdev->ops->remain_on_channel ||
8137 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8141 * We should be on that channel for at least a minimum amount of
8142 * time (10ms) but no longer than the driver supports.
8144 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8145 duration > rdev->wiphy.max_remain_on_channel_duration)
8148 err = nl80211_parse_chandef(rdev, info, &chandef);
8152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8156 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8157 NL80211_CMD_REMAIN_ON_CHANNEL);
8163 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8169 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8170 goto nla_put_failure;
8172 genlmsg_end(msg, hdr);
8174 return genlmsg_reply(msg, info);
8183 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8184 struct genl_info *info)
8186 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8187 struct wireless_dev *wdev = info->user_ptr[1];
8190 if (!info->attrs[NL80211_ATTR_COOKIE])
8193 if (!rdev->ops->cancel_remain_on_channel)
8196 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8198 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8201 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8202 u8 *rates, u8 rates_len)
8207 for (i = 0; i < rates_len; i++) {
8208 int rate = (rates[i] & 0x7f) * 5;
8210 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8211 struct ieee80211_rate *srate =
8212 &sband->bitrates[ridx];
8213 if (rate == srate->bitrate) {
8218 if (ridx == sband->n_bitrates)
8219 return 0; /* rate not found */
8225 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8226 u8 *rates, u8 rates_len,
8227 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8231 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8233 for (i = 0; i < rates_len; i++) {
8236 ridx = rates[i] / 8;
8237 rbit = BIT(rates[i] % 8);
8239 /* check validity */
8240 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8243 /* check availability */
8244 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8253 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8257 switch (vht_mcs_map) {
8258 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8260 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8263 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8266 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8276 static void vht_build_mcs_mask(u16 vht_mcs_map,
8277 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8281 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8282 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8287 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8288 struct nl80211_txrate_vht *txrate,
8289 u16 mcs[NL80211_VHT_NSS_MAX])
8291 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8292 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8295 if (!sband->vht_cap.vht_supported)
8298 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8300 /* Build vht_mcs_mask from VHT capabilities */
8301 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8303 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8304 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8305 mcs[i] = txrate->mcs[i];
8313 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8314 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8315 .len = NL80211_MAX_SUPP_RATES },
8316 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8317 .len = NL80211_MAX_SUPP_HT_RATES },
8318 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8319 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8322 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8323 struct genl_info *info)
8325 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8326 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8327 struct cfg80211_bitrate_mask mask;
8329 struct net_device *dev = info->user_ptr[1];
8330 struct nlattr *tx_rates;
8331 struct ieee80211_supported_band *sband;
8334 if (!rdev->ops->set_bitrate_mask)
8337 memset(&mask, 0, sizeof(mask));
8338 /* Default to all rates enabled */
8339 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8340 sband = rdev->wiphy.bands[i];
8345 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8346 memcpy(mask.control[i].ht_mcs,
8347 sband->ht_cap.mcs.rx_mask,
8348 sizeof(mask.control[i].ht_mcs));
8350 if (!sband->vht_cap.vht_supported)
8353 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8354 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8357 /* if no rates are given set it back to the defaults */
8358 if (!info->attrs[NL80211_ATTR_TX_RATES])
8362 * The nested attribute uses enum nl80211_band as the index. This maps
8363 * directly to the enum ieee80211_band values used in cfg80211.
8365 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8366 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8367 enum ieee80211_band band = nla_type(tx_rates);
8370 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8372 sband = rdev->wiphy.bands[band];
8375 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8376 nla_len(tx_rates), nl80211_txattr_policy);
8379 if (tb[NL80211_TXRATE_LEGACY]) {
8380 mask.control[band].legacy = rateset_to_mask(
8382 nla_data(tb[NL80211_TXRATE_LEGACY]),
8383 nla_len(tb[NL80211_TXRATE_LEGACY]));
8384 if ((mask.control[band].legacy == 0) &&
8385 nla_len(tb[NL80211_TXRATE_LEGACY]))
8388 if (tb[NL80211_TXRATE_HT]) {
8389 if (!ht_rateset_to_mask(
8391 nla_data(tb[NL80211_TXRATE_HT]),
8392 nla_len(tb[NL80211_TXRATE_HT]),
8393 mask.control[band].ht_mcs))
8396 if (tb[NL80211_TXRATE_VHT]) {
8397 if (!vht_set_mcs_mask(
8399 nla_data(tb[NL80211_TXRATE_VHT]),
8400 mask.control[band].vht_mcs))
8403 if (tb[NL80211_TXRATE_GI]) {
8404 mask.control[band].gi =
8405 nla_get_u8(tb[NL80211_TXRATE_GI]);
8406 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8410 if (mask.control[band].legacy == 0) {
8411 /* don't allow empty legacy rates if HT or VHT
8412 * are not even supported.
8414 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8415 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8418 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8419 if (mask.control[band].ht_mcs[i])
8422 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8423 if (mask.control[band].vht_mcs[i])
8426 /* legacy and mcs rates may not be both empty */
8432 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8435 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8437 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8438 struct wireless_dev *wdev = info->user_ptr[1];
8439 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8441 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8444 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8445 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8447 switch (wdev->iftype) {
8448 case NL80211_IFTYPE_STATION:
8449 case NL80211_IFTYPE_ADHOC:
8450 case NL80211_IFTYPE_P2P_CLIENT:
8451 case NL80211_IFTYPE_AP:
8452 case NL80211_IFTYPE_AP_VLAN:
8453 case NL80211_IFTYPE_MESH_POINT:
8454 case NL80211_IFTYPE_P2P_GO:
8455 case NL80211_IFTYPE_P2P_DEVICE:
8461 /* not much point in registering if we can't reply */
8462 if (!rdev->ops->mgmt_tx)
8465 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8466 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8467 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8470 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8472 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8473 struct wireless_dev *wdev = info->user_ptr[1];
8474 struct cfg80211_chan_def chandef;
8478 struct sk_buff *msg = NULL;
8479 struct cfg80211_mgmt_tx_params params = {
8480 .dont_wait_for_ack =
8481 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8484 if (!info->attrs[NL80211_ATTR_FRAME])
8487 if (!rdev->ops->mgmt_tx)
8490 switch (wdev->iftype) {
8491 case NL80211_IFTYPE_P2P_DEVICE:
8492 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8494 case NL80211_IFTYPE_STATION:
8495 case NL80211_IFTYPE_ADHOC:
8496 case NL80211_IFTYPE_P2P_CLIENT:
8497 case NL80211_IFTYPE_AP:
8498 case NL80211_IFTYPE_AP_VLAN:
8499 case NL80211_IFTYPE_MESH_POINT:
8500 case NL80211_IFTYPE_P2P_GO:
8506 if (info->attrs[NL80211_ATTR_DURATION]) {
8507 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8509 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8512 * We should wait on the channel for at least a minimum amount
8513 * of time (10ms) but no longer than the driver supports.
8515 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8516 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8521 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8523 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8526 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8528 /* get the channel if any has been specified, otherwise pass NULL to
8529 * the driver. The latter will use the current one
8531 chandef.chan = NULL;
8532 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8533 err = nl80211_parse_chandef(rdev, info, &chandef);
8538 if (!chandef.chan && params.offchan)
8541 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8542 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8544 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8545 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8548 if (len % sizeof(u16))
8551 params.n_csa_offsets = len / sizeof(u16);
8552 params.csa_offsets =
8553 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8555 /* check that all the offsets fit the frame */
8556 for (i = 0; i < params.n_csa_offsets; i++) {
8557 if (params.csa_offsets[i] >= params.len)
8562 if (!params.dont_wait_for_ack) {
8563 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8567 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8575 params.chan = chandef.chan;
8576 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8581 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8582 goto nla_put_failure;
8584 genlmsg_end(msg, hdr);
8585 return genlmsg_reply(msg, info);
8597 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8599 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8600 struct wireless_dev *wdev = info->user_ptr[1];
8603 if (!info->attrs[NL80211_ATTR_COOKIE])
8606 if (!rdev->ops->mgmt_tx_cancel_wait)
8609 switch (wdev->iftype) {
8610 case NL80211_IFTYPE_STATION:
8611 case NL80211_IFTYPE_ADHOC:
8612 case NL80211_IFTYPE_P2P_CLIENT:
8613 case NL80211_IFTYPE_AP:
8614 case NL80211_IFTYPE_AP_VLAN:
8615 case NL80211_IFTYPE_P2P_GO:
8616 case NL80211_IFTYPE_P2P_DEVICE:
8622 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8624 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8627 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8629 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8630 struct wireless_dev *wdev;
8631 struct net_device *dev = info->user_ptr[1];
8636 if (!info->attrs[NL80211_ATTR_PS_STATE])
8639 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8641 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8644 wdev = dev->ieee80211_ptr;
8646 if (!rdev->ops->set_power_mgmt)
8649 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8651 if (state == wdev->ps)
8654 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8660 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8662 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8663 enum nl80211_ps_state ps_state;
8664 struct wireless_dev *wdev;
8665 struct net_device *dev = info->user_ptr[1];
8666 struct sk_buff *msg;
8670 wdev = dev->ieee80211_ptr;
8672 if (!rdev->ops->set_power_mgmt)
8675 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8679 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8680 NL80211_CMD_GET_POWER_SAVE);
8687 ps_state = NL80211_PS_ENABLED;
8689 ps_state = NL80211_PS_DISABLED;
8691 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8692 goto nla_put_failure;
8694 genlmsg_end(msg, hdr);
8695 return genlmsg_reply(msg, info);
8704 static const struct nla_policy
8705 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8706 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8707 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8708 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8709 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8710 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8711 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8714 static int nl80211_set_cqm_txe(struct genl_info *info,
8715 u32 rate, u32 pkts, u32 intvl)
8717 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8718 struct net_device *dev = info->user_ptr[1];
8719 struct wireless_dev *wdev = dev->ieee80211_ptr;
8721 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8724 if (!rdev->ops->set_cqm_txe_config)
8727 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8728 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8731 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8734 static int nl80211_set_cqm_rssi(struct genl_info *info,
8735 s32 threshold, u32 hysteresis)
8737 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8738 struct net_device *dev = info->user_ptr[1];
8739 struct wireless_dev *wdev = dev->ieee80211_ptr;
8744 /* disabling - hysteresis should also be zero then */
8748 if (!rdev->ops->set_cqm_rssi_config)
8751 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8752 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8755 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8758 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8760 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8764 cqm = info->attrs[NL80211_ATTR_CQM];
8768 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8769 nl80211_attr_cqm_policy);
8773 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8774 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8775 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8776 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8778 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8781 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8782 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8783 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8784 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8785 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8786 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8788 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8794 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8796 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8797 struct net_device *dev = info->user_ptr[1];
8798 struct ocb_setup setup = {};
8801 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8805 return cfg80211_join_ocb(rdev, dev, &setup);
8808 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8810 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8811 struct net_device *dev = info->user_ptr[1];
8813 return cfg80211_leave_ocb(rdev, dev);
8816 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8818 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8819 struct net_device *dev = info->user_ptr[1];
8820 struct mesh_config cfg;
8821 struct mesh_setup setup;
8824 /* start with default */
8825 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8826 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8828 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8829 /* and parse parameters if given */
8830 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8835 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8836 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8839 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8840 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8842 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8843 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8844 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8847 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8848 setup.beacon_interval =
8849 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8850 if (setup.beacon_interval < 10 ||
8851 setup.beacon_interval > 10000)
8855 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8857 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8858 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8862 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8863 /* parse additional setup parameters if given */
8864 err = nl80211_parse_mesh_setup(info, &setup);
8870 cfg.auto_open_plinks = false;
8872 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8873 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8877 /* cfg80211_join_mesh() will sort it out */
8878 setup.chandef.chan = NULL;
8881 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8882 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8884 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8885 struct ieee80211_supported_band *sband;
8887 if (!setup.chandef.chan)
8890 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8892 err = ieee80211_get_ratemask(sband, rates, n_rates,
8893 &setup.basic_rates);
8898 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8901 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8903 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8904 struct net_device *dev = info->user_ptr[1];
8906 return cfg80211_leave_mesh(rdev, dev);
8910 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8911 struct cfg80211_registered_device *rdev)
8913 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8914 struct nlattr *nl_pats, *nl_pat;
8917 if (!wowlan->n_patterns)
8920 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8924 for (i = 0; i < wowlan->n_patterns; i++) {
8925 nl_pat = nla_nest_start(msg, i + 1);
8928 pat_len = wowlan->patterns[i].pattern_len;
8929 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8930 wowlan->patterns[i].mask) ||
8931 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8932 wowlan->patterns[i].pattern) ||
8933 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8934 wowlan->patterns[i].pkt_offset))
8936 nla_nest_end(msg, nl_pat);
8938 nla_nest_end(msg, nl_pats);
8943 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8944 struct cfg80211_wowlan_tcp *tcp)
8946 struct nlattr *nl_tcp;
8951 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8955 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8956 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8957 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8958 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8959 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8960 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8961 tcp->payload_len, tcp->payload) ||
8962 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8963 tcp->data_interval) ||
8964 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8965 tcp->wake_len, tcp->wake_data) ||
8966 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8967 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8970 if (tcp->payload_seq.len &&
8971 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8972 sizeof(tcp->payload_seq), &tcp->payload_seq))
8975 if (tcp->payload_tok.len &&
8976 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8977 sizeof(tcp->payload_tok) + tcp->tokens_size,
8981 nla_nest_end(msg, nl_tcp);
8986 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8987 struct cfg80211_sched_scan_request *req)
8989 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
8995 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8999 if (req->n_scan_plans == 1 &&
9000 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9001 req->scan_plans[0].interval * 1000))
9004 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9007 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9011 for (i = 0; i < req->n_channels; i++)
9012 nla_put_u32(msg, i, req->channels[i]->center_freq);
9014 nla_nest_end(msg, freqs);
9016 if (req->n_match_sets) {
9017 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9018 for (i = 0; i < req->n_match_sets; i++) {
9019 match = nla_nest_start(msg, i);
9020 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9021 req->match_sets[i].ssid.ssid_len,
9022 req->match_sets[i].ssid.ssid);
9023 nla_nest_end(msg, match);
9025 nla_nest_end(msg, matches);
9028 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9032 for (i = 0; i < req->n_scan_plans; i++) {
9033 scan_plan = nla_nest_start(msg, i + 1);
9035 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9036 req->scan_plans[i].interval) ||
9037 (req->scan_plans[i].iterations &&
9038 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9039 req->scan_plans[i].iterations)))
9041 nla_nest_end(msg, scan_plan);
9043 nla_nest_end(msg, scan_plans);
9045 nla_nest_end(msg, nd);
9050 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9052 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9053 struct sk_buff *msg;
9055 u32 size = NLMSG_DEFAULT_SIZE;
9057 if (!rdev->wiphy.wowlan)
9060 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9061 /* adjust size to have room for all the data */
9062 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9063 rdev->wiphy.wowlan_config->tcp->payload_len +
9064 rdev->wiphy.wowlan_config->tcp->wake_len +
9065 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9068 msg = nlmsg_new(size, GFP_KERNEL);
9072 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9073 NL80211_CMD_GET_WOWLAN);
9075 goto nla_put_failure;
9077 if (rdev->wiphy.wowlan_config) {
9078 struct nlattr *nl_wowlan;
9080 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9082 goto nla_put_failure;
9084 if ((rdev->wiphy.wowlan_config->any &&
9085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9086 (rdev->wiphy.wowlan_config->disconnect &&
9087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9088 (rdev->wiphy.wowlan_config->magic_pkt &&
9089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9090 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9091 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9092 (rdev->wiphy.wowlan_config->eap_identity_req &&
9093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9094 (rdev->wiphy.wowlan_config->four_way_handshake &&
9095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9096 (rdev->wiphy.wowlan_config->rfkill_release &&
9097 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9098 goto nla_put_failure;
9100 if (nl80211_send_wowlan_patterns(msg, rdev))
9101 goto nla_put_failure;
9103 if (nl80211_send_wowlan_tcp(msg,
9104 rdev->wiphy.wowlan_config->tcp))
9105 goto nla_put_failure;
9107 if (nl80211_send_wowlan_nd(
9109 rdev->wiphy.wowlan_config->nd_config))
9110 goto nla_put_failure;
9112 nla_nest_end(msg, nl_wowlan);
9115 genlmsg_end(msg, hdr);
9116 return genlmsg_reply(msg, info);
9123 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9124 struct nlattr *attr,
9125 struct cfg80211_wowlan *trig)
9127 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9128 struct cfg80211_wowlan_tcp *cfg;
9129 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9130 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9132 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9135 if (!rdev->wiphy.wowlan->tcp)
9138 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9139 nla_data(attr), nla_len(attr),
9140 nl80211_wowlan_tcp_policy);
9144 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9145 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9146 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9147 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9148 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9149 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9150 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9151 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9154 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9155 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9158 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9159 rdev->wiphy.wowlan->tcp->data_interval_max ||
9160 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9163 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9164 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9167 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9168 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9171 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9172 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9174 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9175 tokens_size = tokln - sizeof(*tok);
9177 if (!tok->len || tokens_size % tok->len)
9179 if (!rdev->wiphy.wowlan->tcp->tok)
9181 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9183 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9185 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9187 if (tok->offset + tok->len > data_size)
9191 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9192 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9193 if (!rdev->wiphy.wowlan->tcp->seq)
9195 if (seq->len == 0 || seq->len > 4)
9197 if (seq->len + seq->offset > data_size)
9201 size = sizeof(*cfg);
9203 size += wake_size + wake_mask_size;
9204 size += tokens_size;
9206 cfg = kzalloc(size, GFP_KERNEL);
9209 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9210 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9211 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9213 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9214 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9218 /* allocate a socket and port for it and use it */
9219 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9220 IPPROTO_TCP, &cfg->sock, 1);
9225 if (inet_csk_get_port(cfg->sock->sk, port)) {
9226 sock_release(cfg->sock);
9230 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9236 cfg->src_port = port;
9239 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9240 cfg->payload_len = data_size;
9241 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9242 memcpy((void *)cfg->payload,
9243 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9246 cfg->payload_seq = *seq;
9247 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9248 cfg->wake_len = wake_size;
9249 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9250 memcpy((void *)cfg->wake_data,
9251 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9253 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9254 data_size + wake_size;
9255 memcpy((void *)cfg->wake_mask,
9256 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9259 cfg->tokens_size = tokens_size;
9260 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9268 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9269 const struct wiphy_wowlan_support *wowlan,
9270 struct nlattr *attr,
9271 struct cfg80211_wowlan *trig)
9276 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9280 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9285 err = nla_parse(tb, NL80211_ATTR_MAX,
9286 nla_data(attr), nla_len(attr),
9291 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9292 err = PTR_ERR_OR_ZERO(trig->nd_config);
9294 trig->nd_config = NULL;
9301 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9303 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9304 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9305 struct cfg80211_wowlan new_triggers = {};
9306 struct cfg80211_wowlan *ntrig;
9307 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9309 bool prev_enabled = rdev->wiphy.wowlan_config;
9310 bool regular = false;
9315 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9316 cfg80211_rdev_free_wowlan(rdev);
9317 rdev->wiphy.wowlan_config = NULL;
9321 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9322 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9323 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9324 nl80211_wowlan_policy);
9328 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9329 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9331 new_triggers.any = true;
9334 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9335 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9337 new_triggers.disconnect = true;
9341 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9342 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9344 new_triggers.magic_pkt = true;
9348 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9351 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9352 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9354 new_triggers.gtk_rekey_failure = true;
9358 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9359 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9361 new_triggers.eap_identity_req = true;
9365 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9366 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9368 new_triggers.four_way_handshake = true;
9372 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9373 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9375 new_triggers.rfkill_release = true;
9379 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9382 int rem, pat_len, mask_len, pkt_offset;
9383 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9387 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9390 if (n_patterns > wowlan->n_patterns)
9393 new_triggers.patterns = kcalloc(n_patterns,
9394 sizeof(new_triggers.patterns[0]),
9396 if (!new_triggers.patterns)
9399 new_triggers.n_patterns = n_patterns;
9402 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9406 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9407 nla_len(pat), NULL);
9409 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9410 !pat_tb[NL80211_PKTPAT_PATTERN])
9412 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9413 mask_len = DIV_ROUND_UP(pat_len, 8);
9414 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9416 if (pat_len > wowlan->pattern_max_len ||
9417 pat_len < wowlan->pattern_min_len)
9420 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9423 pkt_offset = nla_get_u32(
9424 pat_tb[NL80211_PKTPAT_OFFSET]);
9425 if (pkt_offset > wowlan->max_pkt_offset)
9427 new_triggers.patterns[i].pkt_offset = pkt_offset;
9429 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9434 new_triggers.patterns[i].mask = mask_pat;
9435 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9437 mask_pat += mask_len;
9438 new_triggers.patterns[i].pattern = mask_pat;
9439 new_triggers.patterns[i].pattern_len = pat_len;
9441 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9447 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9449 err = nl80211_parse_wowlan_tcp(
9450 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9456 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9458 err = nl80211_parse_wowlan_nd(
9459 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9465 /* The 'any' trigger means the device continues operating more or less
9466 * as in its normal operation mode and wakes up the host on most of the
9467 * normal interrupts (like packet RX, ...)
9468 * It therefore makes little sense to combine with the more constrained
9469 * wakeup trigger modes.
9471 if (new_triggers.any && regular) {
9476 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9481 cfg80211_rdev_free_wowlan(rdev);
9482 rdev->wiphy.wowlan_config = ntrig;
9485 if (rdev->ops->set_wakeup &&
9486 prev_enabled != !!rdev->wiphy.wowlan_config)
9487 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9491 for (i = 0; i < new_triggers.n_patterns; i++)
9492 kfree(new_triggers.patterns[i].mask);
9493 kfree(new_triggers.patterns);
9494 if (new_triggers.tcp && new_triggers.tcp->sock)
9495 sock_release(new_triggers.tcp->sock);
9496 kfree(new_triggers.tcp);
9501 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9502 struct cfg80211_registered_device *rdev)
9504 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9506 struct cfg80211_coalesce_rules *rule;
9508 if (!rdev->coalesce->n_rules)
9511 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9515 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9516 nl_rule = nla_nest_start(msg, i + 1);
9520 rule = &rdev->coalesce->rules[i];
9521 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9525 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9529 nl_pats = nla_nest_start(msg,
9530 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9534 for (j = 0; j < rule->n_patterns; j++) {
9535 nl_pat = nla_nest_start(msg, j + 1);
9538 pat_len = rule->patterns[j].pattern_len;
9539 if (nla_put(msg, NL80211_PKTPAT_MASK,
9540 DIV_ROUND_UP(pat_len, 8),
9541 rule->patterns[j].mask) ||
9542 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9543 rule->patterns[j].pattern) ||
9544 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9545 rule->patterns[j].pkt_offset))
9547 nla_nest_end(msg, nl_pat);
9549 nla_nest_end(msg, nl_pats);
9550 nla_nest_end(msg, nl_rule);
9552 nla_nest_end(msg, nl_rules);
9557 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9559 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9560 struct sk_buff *msg;
9563 if (!rdev->wiphy.coalesce)
9566 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9570 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9571 NL80211_CMD_GET_COALESCE);
9573 goto nla_put_failure;
9575 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9576 goto nla_put_failure;
9578 genlmsg_end(msg, hdr);
9579 return genlmsg_reply(msg, info);
9586 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9588 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9590 struct cfg80211_coalesce_rules *rule;
9595 for (i = 0; i < coalesce->n_rules; i++) {
9596 rule = &coalesce->rules[i];
9597 for (j = 0; j < rule->n_patterns; j++)
9598 kfree(rule->patterns[j].mask);
9599 kfree(rule->patterns);
9601 kfree(coalesce->rules);
9603 rdev->coalesce = NULL;
9606 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9607 struct nlattr *rule,
9608 struct cfg80211_coalesce_rules *new_rule)
9611 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9612 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9613 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9614 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9616 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9617 nla_len(rule), nl80211_coalesce_policy);
9621 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9623 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9624 if (new_rule->delay > coalesce->max_delay)
9627 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9628 new_rule->condition =
9629 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9630 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9631 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9634 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9637 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9640 if (n_patterns > coalesce->n_patterns)
9643 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9645 if (!new_rule->patterns)
9648 new_rule->n_patterns = n_patterns;
9651 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9655 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9656 nla_len(pat), NULL);
9657 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9658 !pat_tb[NL80211_PKTPAT_PATTERN])
9660 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9661 mask_len = DIV_ROUND_UP(pat_len, 8);
9662 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9664 if (pat_len > coalesce->pattern_max_len ||
9665 pat_len < coalesce->pattern_min_len)
9668 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9671 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9672 if (pkt_offset > coalesce->max_pkt_offset)
9674 new_rule->patterns[i].pkt_offset = pkt_offset;
9676 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9680 new_rule->patterns[i].mask = mask_pat;
9681 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9684 mask_pat += mask_len;
9685 new_rule->patterns[i].pattern = mask_pat;
9686 new_rule->patterns[i].pattern_len = pat_len;
9687 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9695 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9697 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9698 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9699 struct cfg80211_coalesce new_coalesce = {};
9700 struct cfg80211_coalesce *n_coalesce;
9701 int err, rem_rule, n_rules = 0, i, j;
9702 struct nlattr *rule;
9703 struct cfg80211_coalesce_rules *tmp_rule;
9705 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9708 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9709 cfg80211_rdev_free_coalesce(rdev);
9710 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9714 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9717 if (n_rules > coalesce->n_rules)
9720 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9722 if (!new_coalesce.rules)
9725 new_coalesce.n_rules = n_rules;
9728 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9730 err = nl80211_parse_coalesce_rule(rdev, rule,
9731 &new_coalesce.rules[i]);
9738 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9742 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9747 cfg80211_rdev_free_coalesce(rdev);
9748 rdev->coalesce = n_coalesce;
9752 for (i = 0; i < new_coalesce.n_rules; i++) {
9753 tmp_rule = &new_coalesce.rules[i];
9754 for (j = 0; j < tmp_rule->n_patterns; j++)
9755 kfree(tmp_rule->patterns[j].mask);
9756 kfree(tmp_rule->patterns);
9758 kfree(new_coalesce.rules);
9763 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9766 struct net_device *dev = info->user_ptr[1];
9767 struct wireless_dev *wdev = dev->ieee80211_ptr;
9768 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9769 struct cfg80211_gtk_rekey_data rekey_data;
9772 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9775 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9776 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9777 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9778 nl80211_rekey_policy);
9782 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9784 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9786 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9789 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9790 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9791 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9794 if (!wdev->current_bss) {
9799 if (!rdev->ops->set_rekey_data) {
9804 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9810 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9811 struct genl_info *info)
9813 struct net_device *dev = info->user_ptr[1];
9814 struct wireless_dev *wdev = dev->ieee80211_ptr;
9816 if (wdev->iftype != NL80211_IFTYPE_AP &&
9817 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9820 if (wdev->ap_unexpected_nlportid)
9823 wdev->ap_unexpected_nlportid = info->snd_portid;
9827 static int nl80211_probe_client(struct sk_buff *skb,
9828 struct genl_info *info)
9830 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9831 struct net_device *dev = info->user_ptr[1];
9832 struct wireless_dev *wdev = dev->ieee80211_ptr;
9833 struct sk_buff *msg;
9839 if (wdev->iftype != NL80211_IFTYPE_AP &&
9840 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9843 if (!info->attrs[NL80211_ATTR_MAC])
9846 if (!rdev->ops->probe_client)
9849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9853 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9854 NL80211_CMD_PROBE_CLIENT);
9860 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9862 err = rdev_probe_client(rdev, dev, addr, &cookie);
9866 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9867 goto nla_put_failure;
9869 genlmsg_end(msg, hdr);
9871 return genlmsg_reply(msg, info);
9880 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9882 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9883 struct cfg80211_beacon_registration *reg, *nreg;
9886 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9889 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9893 /* First, check if already registered. */
9894 spin_lock_bh(&rdev->beacon_registrations_lock);
9895 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9896 if (reg->nlportid == info->snd_portid) {
9901 /* Add it to the list */
9902 nreg->nlportid = info->snd_portid;
9903 list_add(&nreg->list, &rdev->beacon_registrations);
9905 spin_unlock_bh(&rdev->beacon_registrations_lock);
9909 spin_unlock_bh(&rdev->beacon_registrations_lock);
9914 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9916 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9917 struct wireless_dev *wdev = info->user_ptr[1];
9920 if (!rdev->ops->start_p2p_device)
9923 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9926 if (wdev->p2p_started)
9929 if (rfkill_blocked(rdev->rfkill))
9932 err = rdev_start_p2p_device(rdev, wdev);
9936 wdev->p2p_started = true;
9942 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9945 struct wireless_dev *wdev = info->user_ptr[1];
9947 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9950 if (!rdev->ops->stop_p2p_device)
9953 cfg80211_stop_p2p_device(rdev, wdev);
9958 static int nl80211_get_protocol_features(struct sk_buff *skb,
9959 struct genl_info *info)
9962 struct sk_buff *msg;
9964 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9968 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9969 NL80211_CMD_GET_PROTOCOL_FEATURES);
9971 goto nla_put_failure;
9973 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9974 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9975 goto nla_put_failure;
9977 genlmsg_end(msg, hdr);
9978 return genlmsg_reply(msg, info);
9985 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9987 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9988 struct cfg80211_update_ft_ies_params ft_params;
9989 struct net_device *dev = info->user_ptr[1];
9991 if (!rdev->ops->update_ft_ies)
9994 if (!info->attrs[NL80211_ATTR_MDID] ||
9995 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9998 memset(&ft_params, 0, sizeof(ft_params));
9999 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10000 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10001 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10003 return rdev_update_ft_ies(rdev, dev, &ft_params);
10006 static int nl80211_crit_protocol_start(struct sk_buff *skb,
10007 struct genl_info *info)
10009 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10010 struct wireless_dev *wdev = info->user_ptr[1];
10011 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10015 if (!rdev->ops->crit_proto_start)
10016 return -EOPNOTSUPP;
10018 if (WARN_ON(!rdev->ops->crit_proto_stop))
10021 if (rdev->crit_proto_nlportid)
10024 /* determine protocol if provided */
10025 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10026 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10028 if (proto >= NUM_NL80211_CRIT_PROTO)
10031 /* timeout must be provided */
10032 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10036 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10038 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10041 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10043 rdev->crit_proto_nlportid = info->snd_portid;
10048 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10049 struct genl_info *info)
10051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10052 struct wireless_dev *wdev = info->user_ptr[1];
10054 if (!rdev->ops->crit_proto_stop)
10055 return -EOPNOTSUPP;
10057 if (rdev->crit_proto_nlportid) {
10058 rdev->crit_proto_nlportid = 0;
10059 rdev_crit_proto_stop(rdev, wdev);
10064 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10066 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10067 struct wireless_dev *wdev =
10068 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10072 if (!rdev->wiphy.vendor_commands)
10073 return -EOPNOTSUPP;
10075 if (IS_ERR(wdev)) {
10076 err = PTR_ERR(wdev);
10077 if (err != -EINVAL)
10080 } else if (wdev->wiphy != &rdev->wiphy) {
10084 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10085 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10088 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10089 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10090 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10091 const struct wiphy_vendor_command *vcmd;
10095 vcmd = &rdev->wiphy.vendor_commands[i];
10097 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10100 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10101 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10104 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10108 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10109 if (wdev->netdev &&
10110 !netif_running(wdev->netdev))
10112 if (!wdev->netdev && !wdev->p2p_started)
10117 return -EOPNOTSUPP;
10122 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10123 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10124 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10127 rdev->cur_cmd_info = info;
10128 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10130 rdev->cur_cmd_info = NULL;
10134 return -EOPNOTSUPP;
10137 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10138 struct netlink_callback *cb,
10139 struct cfg80211_registered_device **rdev,
10140 struct wireless_dev **wdev)
10147 unsigned int data_len = 0;
10152 /* subtract the 1 again here */
10153 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10154 struct wireless_dev *tmp;
10160 *rdev = wiphy_to_rdev(wiphy);
10164 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10165 if (tmp->identifier == cb->args[1] - 1) {
10172 /* keep rtnl locked in successful case */
10176 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10177 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10182 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10183 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10188 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10189 nl80211_fam.attrbuf);
10193 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10194 nl80211_fam.attrbuf);
10195 if (IS_ERR(*rdev)) {
10196 err = PTR_ERR(*rdev);
10200 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10201 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10203 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10204 const struct wiphy_vendor_command *vcmd;
10206 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10208 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10211 if (!vcmd->dumpit) {
10220 if (vcmd_idx < 0) {
10225 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10226 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10227 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10230 /* 0 is the first index - add 1 to parse only once */
10231 cb->args[0] = (*rdev)->wiphy_idx + 1;
10232 /* add 1 to know if it was NULL */
10233 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10234 cb->args[2] = vcmd_idx;
10235 cb->args[3] = (unsigned long)data;
10236 cb->args[4] = data_len;
10238 /* keep rtnl locked in successful case */
10245 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10246 struct netlink_callback *cb)
10248 struct cfg80211_registered_device *rdev;
10249 struct wireless_dev *wdev;
10250 unsigned int vcmd_idx;
10251 const struct wiphy_vendor_command *vcmd;
10255 struct nlattr *vendor_data;
10257 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10261 vcmd_idx = cb->args[2];
10262 data = (void *)cb->args[3];
10263 data_len = cb->args[4];
10264 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10266 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10267 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10270 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10274 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10275 if (wdev->netdev &&
10276 !netif_running(wdev->netdev))
10278 if (!wdev->netdev && !wdev->p2p_started)
10284 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10285 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10286 NL80211_CMD_VENDOR);
10290 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10291 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10293 genlmsg_cancel(skb, hdr);
10297 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10298 if (!vendor_data) {
10299 genlmsg_cancel(skb, hdr);
10303 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10304 (unsigned long *)&cb->args[5]);
10305 nla_nest_end(skb, vendor_data);
10307 if (err == -ENOBUFS || err == -ENOENT) {
10308 genlmsg_cancel(skb, hdr);
10311 genlmsg_cancel(skb, hdr);
10315 genlmsg_end(skb, hdr);
10324 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10325 enum nl80211_commands cmd,
10326 enum nl80211_attrs attr,
10329 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10331 if (WARN_ON(!rdev->cur_cmd_info))
10334 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
10335 rdev->cur_cmd_info->snd_portid,
10336 rdev->cur_cmd_info->snd_seq,
10337 cmd, attr, NULL, GFP_KERNEL);
10339 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10341 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10343 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10344 void *hdr = ((void **)skb->cb)[1];
10345 struct nlattr *data = ((void **)skb->cb)[2];
10347 /* clear CB data for netlink core to own from now on */
10348 memset(skb->cb, 0, sizeof(skb->cb));
10350 if (WARN_ON(!rdev->cur_cmd_info)) {
10355 nla_nest_end(skb, data);
10356 genlmsg_end(skb, hdr);
10357 return genlmsg_reply(skb, rdev->cur_cmd_info);
10359 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10362 static int nl80211_set_qos_map(struct sk_buff *skb,
10363 struct genl_info *info)
10365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10366 struct cfg80211_qos_map *qos_map = NULL;
10367 struct net_device *dev = info->user_ptr[1];
10368 u8 *pos, len, num_des, des_len, des;
10371 if (!rdev->ops->set_qos_map)
10372 return -EOPNOTSUPP;
10374 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10375 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10376 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10378 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10379 len > IEEE80211_QOS_MAP_LEN_MAX)
10382 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10386 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10388 des_len = num_des *
10389 sizeof(struct cfg80211_dscp_exception);
10390 memcpy(qos_map->dscp_exception, pos, des_len);
10391 qos_map->num_des = num_des;
10392 for (des = 0; des < num_des; des++) {
10393 if (qos_map->dscp_exception[des].up > 7) {
10400 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10403 wdev_lock(dev->ieee80211_ptr);
10404 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10406 ret = rdev_set_qos_map(rdev, dev, qos_map);
10407 wdev_unlock(dev->ieee80211_ptr);
10413 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10415 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10416 struct net_device *dev = info->user_ptr[1];
10417 struct wireless_dev *wdev = dev->ieee80211_ptr;
10420 u16 admitted_time = 0;
10423 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10424 return -EOPNOTSUPP;
10426 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10427 !info->attrs[NL80211_ATTR_USER_PRIO])
10430 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10431 if (tsid >= IEEE80211_NUM_TIDS)
10434 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10435 if (up >= IEEE80211_NUM_UPS)
10438 /* WMM uses TIDs 0-7 even for TSPEC */
10439 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10440 /* TODO: handle 802.11 TSPEC/admission control
10441 * need more attributes for that (e.g. BA session requirement);
10442 * change the WMM adminssion test above to allow both then
10447 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10449 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10451 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10452 if (!admitted_time)
10457 switch (wdev->iftype) {
10458 case NL80211_IFTYPE_STATION:
10459 case NL80211_IFTYPE_P2P_CLIENT:
10460 if (wdev->current_bss)
10469 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10476 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10478 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10479 struct net_device *dev = info->user_ptr[1];
10480 struct wireless_dev *wdev = dev->ieee80211_ptr;
10485 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10488 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10489 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10492 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10498 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10499 struct genl_info *info)
10501 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10502 struct net_device *dev = info->user_ptr[1];
10503 struct wireless_dev *wdev = dev->ieee80211_ptr;
10504 struct cfg80211_chan_def chandef = {};
10509 if (!rdev->ops->tdls_channel_switch ||
10510 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10511 return -EOPNOTSUPP;
10513 switch (dev->ieee80211_ptr->iftype) {
10514 case NL80211_IFTYPE_STATION:
10515 case NL80211_IFTYPE_P2P_CLIENT:
10518 return -EOPNOTSUPP;
10521 if (!info->attrs[NL80211_ATTR_MAC] ||
10522 !info->attrs[NL80211_ATTR_OPER_CLASS])
10525 err = nl80211_parse_chandef(rdev, info, &chandef);
10530 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10531 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10532 * specification is not defined for them.
10534 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10535 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10536 chandef.width != NL80211_CHAN_WIDTH_20)
10539 /* we will be active on the TDLS link */
10540 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10544 /* don't allow switching to DFS channels */
10545 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10548 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10549 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10552 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10558 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10559 struct genl_info *info)
10561 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10562 struct net_device *dev = info->user_ptr[1];
10563 struct wireless_dev *wdev = dev->ieee80211_ptr;
10566 if (!rdev->ops->tdls_channel_switch ||
10567 !rdev->ops->tdls_cancel_channel_switch ||
10568 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10569 return -EOPNOTSUPP;
10571 switch (dev->ieee80211_ptr->iftype) {
10572 case NL80211_IFTYPE_STATION:
10573 case NL80211_IFTYPE_P2P_CLIENT:
10576 return -EOPNOTSUPP;
10579 if (!info->attrs[NL80211_ATTR_MAC])
10582 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10585 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10591 #define NL80211_FLAG_NEED_WIPHY 0x01
10592 #define NL80211_FLAG_NEED_NETDEV 0x02
10593 #define NL80211_FLAG_NEED_RTNL 0x04
10594 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10595 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10596 NL80211_FLAG_CHECK_NETDEV_UP)
10597 #define NL80211_FLAG_NEED_WDEV 0x10
10598 /* If a netdev is associated, it must be UP, P2P must be started */
10599 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10600 NL80211_FLAG_CHECK_NETDEV_UP)
10601 #define NL80211_FLAG_CLEAR_SKB 0x20
10603 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10604 struct genl_info *info)
10606 struct cfg80211_registered_device *rdev;
10607 struct wireless_dev *wdev;
10608 struct net_device *dev;
10609 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10614 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10615 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10616 if (IS_ERR(rdev)) {
10619 return PTR_ERR(rdev);
10621 info->user_ptr[0] = rdev;
10622 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10623 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10626 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10628 if (IS_ERR(wdev)) {
10631 return PTR_ERR(wdev);
10634 dev = wdev->netdev;
10635 rdev = wiphy_to_rdev(wdev->wiphy);
10637 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10644 info->user_ptr[1] = dev;
10646 info->user_ptr[1] = wdev;
10650 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10651 !netif_running(dev)) {
10658 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10659 if (!wdev->p2p_started) {
10666 info->user_ptr[0] = rdev;
10672 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10673 struct genl_info *info)
10675 if (info->user_ptr[1]) {
10676 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10677 struct wireless_dev *wdev = info->user_ptr[1];
10680 dev_put(wdev->netdev);
10682 dev_put(info->user_ptr[1]);
10686 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10689 /* If needed, clear the netlink message payload from the SKB
10690 * as it might contain key data that shouldn't stick around on
10691 * the heap after the SKB is freed. The netlink message header
10692 * is still needed for further processing, so leave it intact.
10694 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10695 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10697 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10701 static const struct genl_ops nl80211_ops[] = {
10703 .cmd = NL80211_CMD_GET_WIPHY,
10704 .doit = nl80211_get_wiphy,
10705 .dumpit = nl80211_dump_wiphy,
10706 .done = nl80211_dump_wiphy_done,
10707 .policy = nl80211_policy,
10708 /* can be retrieved by unprivileged users */
10709 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10710 NL80211_FLAG_NEED_RTNL,
10713 .cmd = NL80211_CMD_SET_WIPHY,
10714 .doit = nl80211_set_wiphy,
10715 .policy = nl80211_policy,
10716 .flags = GENL_ADMIN_PERM,
10717 .internal_flags = NL80211_FLAG_NEED_RTNL,
10720 .cmd = NL80211_CMD_GET_INTERFACE,
10721 .doit = nl80211_get_interface,
10722 .dumpit = nl80211_dump_interface,
10723 .policy = nl80211_policy,
10724 /* can be retrieved by unprivileged users */
10725 .internal_flags = NL80211_FLAG_NEED_WDEV |
10726 NL80211_FLAG_NEED_RTNL,
10729 .cmd = NL80211_CMD_SET_INTERFACE,
10730 .doit = nl80211_set_interface,
10731 .policy = nl80211_policy,
10732 .flags = GENL_ADMIN_PERM,
10733 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10734 NL80211_FLAG_NEED_RTNL,
10737 .cmd = NL80211_CMD_NEW_INTERFACE,
10738 .doit = nl80211_new_interface,
10739 .policy = nl80211_policy,
10740 .flags = GENL_ADMIN_PERM,
10741 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10742 NL80211_FLAG_NEED_RTNL,
10745 .cmd = NL80211_CMD_DEL_INTERFACE,
10746 .doit = nl80211_del_interface,
10747 .policy = nl80211_policy,
10748 .flags = GENL_ADMIN_PERM,
10749 .internal_flags = NL80211_FLAG_NEED_WDEV |
10750 NL80211_FLAG_NEED_RTNL,
10753 .cmd = NL80211_CMD_GET_KEY,
10754 .doit = nl80211_get_key,
10755 .policy = nl80211_policy,
10756 .flags = GENL_ADMIN_PERM,
10757 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10758 NL80211_FLAG_NEED_RTNL,
10761 .cmd = NL80211_CMD_SET_KEY,
10762 .doit = nl80211_set_key,
10763 .policy = nl80211_policy,
10764 .flags = GENL_ADMIN_PERM,
10765 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10766 NL80211_FLAG_NEED_RTNL |
10767 NL80211_FLAG_CLEAR_SKB,
10770 .cmd = NL80211_CMD_NEW_KEY,
10771 .doit = nl80211_new_key,
10772 .policy = nl80211_policy,
10773 .flags = GENL_ADMIN_PERM,
10774 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10775 NL80211_FLAG_NEED_RTNL |
10776 NL80211_FLAG_CLEAR_SKB,
10779 .cmd = NL80211_CMD_DEL_KEY,
10780 .doit = nl80211_del_key,
10781 .policy = nl80211_policy,
10782 .flags = GENL_ADMIN_PERM,
10783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10784 NL80211_FLAG_NEED_RTNL,
10787 .cmd = NL80211_CMD_SET_BEACON,
10788 .policy = nl80211_policy,
10789 .flags = GENL_ADMIN_PERM,
10790 .doit = nl80211_set_beacon,
10791 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10792 NL80211_FLAG_NEED_RTNL,
10795 .cmd = NL80211_CMD_START_AP,
10796 .policy = nl80211_policy,
10797 .flags = GENL_ADMIN_PERM,
10798 .doit = nl80211_start_ap,
10799 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10800 NL80211_FLAG_NEED_RTNL,
10803 .cmd = NL80211_CMD_STOP_AP,
10804 .policy = nl80211_policy,
10805 .flags = GENL_ADMIN_PERM,
10806 .doit = nl80211_stop_ap,
10807 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10808 NL80211_FLAG_NEED_RTNL,
10811 .cmd = NL80211_CMD_GET_STATION,
10812 .doit = nl80211_get_station,
10813 .dumpit = nl80211_dump_station,
10814 .policy = nl80211_policy,
10815 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10816 NL80211_FLAG_NEED_RTNL,
10819 .cmd = NL80211_CMD_SET_STATION,
10820 .doit = nl80211_set_station,
10821 .policy = nl80211_policy,
10822 .flags = GENL_ADMIN_PERM,
10823 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10824 NL80211_FLAG_NEED_RTNL,
10827 .cmd = NL80211_CMD_NEW_STATION,
10828 .doit = nl80211_new_station,
10829 .policy = nl80211_policy,
10830 .flags = GENL_ADMIN_PERM,
10831 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10832 NL80211_FLAG_NEED_RTNL,
10835 .cmd = NL80211_CMD_DEL_STATION,
10836 .doit = nl80211_del_station,
10837 .policy = nl80211_policy,
10838 .flags = GENL_ADMIN_PERM,
10839 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10840 NL80211_FLAG_NEED_RTNL,
10843 .cmd = NL80211_CMD_GET_MPATH,
10844 .doit = nl80211_get_mpath,
10845 .dumpit = nl80211_dump_mpath,
10846 .policy = nl80211_policy,
10847 .flags = GENL_ADMIN_PERM,
10848 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10849 NL80211_FLAG_NEED_RTNL,
10852 .cmd = NL80211_CMD_GET_MPP,
10853 .doit = nl80211_get_mpp,
10854 .dumpit = nl80211_dump_mpp,
10855 .policy = nl80211_policy,
10856 .flags = GENL_ADMIN_PERM,
10857 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10858 NL80211_FLAG_NEED_RTNL,
10861 .cmd = NL80211_CMD_SET_MPATH,
10862 .doit = nl80211_set_mpath,
10863 .policy = nl80211_policy,
10864 .flags = GENL_ADMIN_PERM,
10865 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10866 NL80211_FLAG_NEED_RTNL,
10869 .cmd = NL80211_CMD_NEW_MPATH,
10870 .doit = nl80211_new_mpath,
10871 .policy = nl80211_policy,
10872 .flags = GENL_ADMIN_PERM,
10873 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10874 NL80211_FLAG_NEED_RTNL,
10877 .cmd = NL80211_CMD_DEL_MPATH,
10878 .doit = nl80211_del_mpath,
10879 .policy = nl80211_policy,
10880 .flags = GENL_ADMIN_PERM,
10881 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10882 NL80211_FLAG_NEED_RTNL,
10885 .cmd = NL80211_CMD_SET_BSS,
10886 .doit = nl80211_set_bss,
10887 .policy = nl80211_policy,
10888 .flags = GENL_ADMIN_PERM,
10889 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10890 NL80211_FLAG_NEED_RTNL,
10893 .cmd = NL80211_CMD_GET_REG,
10894 .doit = nl80211_get_reg_do,
10895 .dumpit = nl80211_get_reg_dump,
10896 .policy = nl80211_policy,
10897 .internal_flags = NL80211_FLAG_NEED_RTNL,
10898 /* can be retrieved by unprivileged users */
10900 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
10902 .cmd = NL80211_CMD_SET_REG,
10903 .doit = nl80211_set_reg,
10904 .policy = nl80211_policy,
10905 .flags = GENL_ADMIN_PERM,
10906 .internal_flags = NL80211_FLAG_NEED_RTNL,
10910 .cmd = NL80211_CMD_REQ_SET_REG,
10911 .doit = nl80211_req_set_reg,
10912 .policy = nl80211_policy,
10913 .flags = GENL_ADMIN_PERM,
10916 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10917 .doit = nl80211_get_mesh_config,
10918 .policy = nl80211_policy,
10919 /* can be retrieved by unprivileged users */
10920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10921 NL80211_FLAG_NEED_RTNL,
10924 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10925 .doit = nl80211_update_mesh_config,
10926 .policy = nl80211_policy,
10927 .flags = GENL_ADMIN_PERM,
10928 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10929 NL80211_FLAG_NEED_RTNL,
10932 .cmd = NL80211_CMD_TRIGGER_SCAN,
10933 .doit = nl80211_trigger_scan,
10934 .policy = nl80211_policy,
10935 .flags = GENL_ADMIN_PERM,
10936 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10937 NL80211_FLAG_NEED_RTNL,
10940 .cmd = NL80211_CMD_GET_SCAN,
10941 .policy = nl80211_policy,
10942 .dumpit = nl80211_dump_scan,
10945 .cmd = NL80211_CMD_START_SCHED_SCAN,
10946 .doit = nl80211_start_sched_scan,
10947 .policy = nl80211_policy,
10948 .flags = GENL_ADMIN_PERM,
10949 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10950 NL80211_FLAG_NEED_RTNL,
10953 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10954 .doit = nl80211_stop_sched_scan,
10955 .policy = nl80211_policy,
10956 .flags = GENL_ADMIN_PERM,
10957 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10958 NL80211_FLAG_NEED_RTNL,
10961 .cmd = NL80211_CMD_AUTHENTICATE,
10962 .doit = nl80211_authenticate,
10963 .policy = nl80211_policy,
10964 .flags = GENL_ADMIN_PERM,
10965 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10966 NL80211_FLAG_NEED_RTNL |
10967 NL80211_FLAG_CLEAR_SKB,
10970 .cmd = NL80211_CMD_ASSOCIATE,
10971 .doit = nl80211_associate,
10972 .policy = nl80211_policy,
10973 .flags = GENL_ADMIN_PERM,
10974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10975 NL80211_FLAG_NEED_RTNL,
10978 .cmd = NL80211_CMD_DEAUTHENTICATE,
10979 .doit = nl80211_deauthenticate,
10980 .policy = nl80211_policy,
10981 .flags = GENL_ADMIN_PERM,
10982 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10983 NL80211_FLAG_NEED_RTNL,
10986 .cmd = NL80211_CMD_DISASSOCIATE,
10987 .doit = nl80211_disassociate,
10988 .policy = nl80211_policy,
10989 .flags = GENL_ADMIN_PERM,
10990 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10991 NL80211_FLAG_NEED_RTNL,
10994 .cmd = NL80211_CMD_JOIN_IBSS,
10995 .doit = nl80211_join_ibss,
10996 .policy = nl80211_policy,
10997 .flags = GENL_ADMIN_PERM,
10998 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10999 NL80211_FLAG_NEED_RTNL,
11002 .cmd = NL80211_CMD_LEAVE_IBSS,
11003 .doit = nl80211_leave_ibss,
11004 .policy = nl80211_policy,
11005 .flags = GENL_ADMIN_PERM,
11006 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11007 NL80211_FLAG_NEED_RTNL,
11009 #ifdef CONFIG_NL80211_TESTMODE
11011 .cmd = NL80211_CMD_TESTMODE,
11012 .doit = nl80211_testmode_do,
11013 .dumpit = nl80211_testmode_dump,
11014 .policy = nl80211_policy,
11015 .flags = GENL_ADMIN_PERM,
11016 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11017 NL80211_FLAG_NEED_RTNL,
11021 .cmd = NL80211_CMD_CONNECT,
11022 .doit = nl80211_connect,
11023 .policy = nl80211_policy,
11024 .flags = GENL_ADMIN_PERM,
11025 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11026 NL80211_FLAG_NEED_RTNL,
11029 .cmd = NL80211_CMD_DISCONNECT,
11030 .doit = nl80211_disconnect,
11031 .policy = nl80211_policy,
11032 .flags = GENL_ADMIN_PERM,
11033 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11034 NL80211_FLAG_NEED_RTNL,
11037 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11038 .doit = nl80211_wiphy_netns,
11039 .policy = nl80211_policy,
11040 .flags = GENL_ADMIN_PERM,
11041 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11042 NL80211_FLAG_NEED_RTNL,
11045 .cmd = NL80211_CMD_GET_SURVEY,
11046 .policy = nl80211_policy,
11047 .dumpit = nl80211_dump_survey,
11050 .cmd = NL80211_CMD_SET_PMKSA,
11051 .doit = nl80211_setdel_pmksa,
11052 .policy = nl80211_policy,
11053 .flags = GENL_ADMIN_PERM,
11054 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11055 NL80211_FLAG_NEED_RTNL,
11058 .cmd = NL80211_CMD_DEL_PMKSA,
11059 .doit = nl80211_setdel_pmksa,
11060 .policy = nl80211_policy,
11061 .flags = GENL_ADMIN_PERM,
11062 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11063 NL80211_FLAG_NEED_RTNL,
11066 .cmd = NL80211_CMD_FLUSH_PMKSA,
11067 .doit = nl80211_flush_pmksa,
11068 .policy = nl80211_policy,
11069 .flags = GENL_ADMIN_PERM,
11070 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11071 NL80211_FLAG_NEED_RTNL,
11074 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11075 .doit = nl80211_remain_on_channel,
11076 .policy = nl80211_policy,
11077 .flags = GENL_ADMIN_PERM,
11078 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11079 NL80211_FLAG_NEED_RTNL,
11082 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11083 .doit = nl80211_cancel_remain_on_channel,
11084 .policy = nl80211_policy,
11085 .flags = GENL_ADMIN_PERM,
11086 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11087 NL80211_FLAG_NEED_RTNL,
11090 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11091 .doit = nl80211_set_tx_bitrate_mask,
11092 .policy = nl80211_policy,
11093 .flags = GENL_ADMIN_PERM,
11094 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11095 NL80211_FLAG_NEED_RTNL,
11098 .cmd = NL80211_CMD_REGISTER_FRAME,
11099 .doit = nl80211_register_mgmt,
11100 .policy = nl80211_policy,
11101 .flags = GENL_ADMIN_PERM,
11102 .internal_flags = NL80211_FLAG_NEED_WDEV |
11103 NL80211_FLAG_NEED_RTNL,
11106 .cmd = NL80211_CMD_FRAME,
11107 .doit = nl80211_tx_mgmt,
11108 .policy = nl80211_policy,
11109 .flags = GENL_ADMIN_PERM,
11110 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11111 NL80211_FLAG_NEED_RTNL,
11114 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11115 .doit = nl80211_tx_mgmt_cancel_wait,
11116 .policy = nl80211_policy,
11117 .flags = GENL_ADMIN_PERM,
11118 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11119 NL80211_FLAG_NEED_RTNL,
11122 .cmd = NL80211_CMD_SET_POWER_SAVE,
11123 .doit = nl80211_set_power_save,
11124 .policy = nl80211_policy,
11125 .flags = GENL_ADMIN_PERM,
11126 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11127 NL80211_FLAG_NEED_RTNL,
11130 .cmd = NL80211_CMD_GET_POWER_SAVE,
11131 .doit = nl80211_get_power_save,
11132 .policy = nl80211_policy,
11133 /* can be retrieved by unprivileged users */
11134 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11135 NL80211_FLAG_NEED_RTNL,
11138 .cmd = NL80211_CMD_SET_CQM,
11139 .doit = nl80211_set_cqm,
11140 .policy = nl80211_policy,
11141 .flags = GENL_ADMIN_PERM,
11142 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11143 NL80211_FLAG_NEED_RTNL,
11146 .cmd = NL80211_CMD_SET_CHANNEL,
11147 .doit = nl80211_set_channel,
11148 .policy = nl80211_policy,
11149 .flags = GENL_ADMIN_PERM,
11150 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11151 NL80211_FLAG_NEED_RTNL,
11154 .cmd = NL80211_CMD_SET_WDS_PEER,
11155 .doit = nl80211_set_wds_peer,
11156 .policy = nl80211_policy,
11157 .flags = GENL_ADMIN_PERM,
11158 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11159 NL80211_FLAG_NEED_RTNL,
11162 .cmd = NL80211_CMD_JOIN_MESH,
11163 .doit = nl80211_join_mesh,
11164 .policy = nl80211_policy,
11165 .flags = GENL_ADMIN_PERM,
11166 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11167 NL80211_FLAG_NEED_RTNL,
11170 .cmd = NL80211_CMD_LEAVE_MESH,
11171 .doit = nl80211_leave_mesh,
11172 .policy = nl80211_policy,
11173 .flags = GENL_ADMIN_PERM,
11174 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11175 NL80211_FLAG_NEED_RTNL,
11178 .cmd = NL80211_CMD_JOIN_OCB,
11179 .doit = nl80211_join_ocb,
11180 .policy = nl80211_policy,
11181 .flags = GENL_ADMIN_PERM,
11182 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11183 NL80211_FLAG_NEED_RTNL,
11186 .cmd = NL80211_CMD_LEAVE_OCB,
11187 .doit = nl80211_leave_ocb,
11188 .policy = nl80211_policy,
11189 .flags = GENL_ADMIN_PERM,
11190 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11191 NL80211_FLAG_NEED_RTNL,
11195 .cmd = NL80211_CMD_GET_WOWLAN,
11196 .doit = nl80211_get_wowlan,
11197 .policy = nl80211_policy,
11198 /* can be retrieved by unprivileged users */
11199 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11200 NL80211_FLAG_NEED_RTNL,
11203 .cmd = NL80211_CMD_SET_WOWLAN,
11204 .doit = nl80211_set_wowlan,
11205 .policy = nl80211_policy,
11206 .flags = GENL_ADMIN_PERM,
11207 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11208 NL80211_FLAG_NEED_RTNL,
11212 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11213 .doit = nl80211_set_rekey_data,
11214 .policy = nl80211_policy,
11215 .flags = GENL_ADMIN_PERM,
11216 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11217 NL80211_FLAG_NEED_RTNL |
11218 NL80211_FLAG_CLEAR_SKB,
11221 .cmd = NL80211_CMD_TDLS_MGMT,
11222 .doit = nl80211_tdls_mgmt,
11223 .policy = nl80211_policy,
11224 .flags = GENL_ADMIN_PERM,
11225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11226 NL80211_FLAG_NEED_RTNL,
11229 .cmd = NL80211_CMD_TDLS_OPER,
11230 .doit = nl80211_tdls_oper,
11231 .policy = nl80211_policy,
11232 .flags = GENL_ADMIN_PERM,
11233 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11234 NL80211_FLAG_NEED_RTNL,
11237 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11238 .doit = nl80211_register_unexpected_frame,
11239 .policy = nl80211_policy,
11240 .flags = GENL_ADMIN_PERM,
11241 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11242 NL80211_FLAG_NEED_RTNL,
11245 .cmd = NL80211_CMD_PROBE_CLIENT,
11246 .doit = nl80211_probe_client,
11247 .policy = nl80211_policy,
11248 .flags = GENL_ADMIN_PERM,
11249 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11250 NL80211_FLAG_NEED_RTNL,
11253 .cmd = NL80211_CMD_REGISTER_BEACONS,
11254 .doit = nl80211_register_beacons,
11255 .policy = nl80211_policy,
11256 .flags = GENL_ADMIN_PERM,
11257 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11258 NL80211_FLAG_NEED_RTNL,
11261 .cmd = NL80211_CMD_SET_NOACK_MAP,
11262 .doit = nl80211_set_noack_map,
11263 .policy = nl80211_policy,
11264 .flags = GENL_ADMIN_PERM,
11265 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11266 NL80211_FLAG_NEED_RTNL,
11269 .cmd = NL80211_CMD_START_P2P_DEVICE,
11270 .doit = nl80211_start_p2p_device,
11271 .policy = nl80211_policy,
11272 .flags = GENL_ADMIN_PERM,
11273 .internal_flags = NL80211_FLAG_NEED_WDEV |
11274 NL80211_FLAG_NEED_RTNL,
11277 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11278 .doit = nl80211_stop_p2p_device,
11279 .policy = nl80211_policy,
11280 .flags = GENL_ADMIN_PERM,
11281 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11282 NL80211_FLAG_NEED_RTNL,
11285 .cmd = NL80211_CMD_SET_MCAST_RATE,
11286 .doit = nl80211_set_mcast_rate,
11287 .policy = nl80211_policy,
11288 .flags = GENL_ADMIN_PERM,
11289 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11290 NL80211_FLAG_NEED_RTNL,
11293 .cmd = NL80211_CMD_SET_MAC_ACL,
11294 .doit = nl80211_set_mac_acl,
11295 .policy = nl80211_policy,
11296 .flags = GENL_ADMIN_PERM,
11297 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11298 NL80211_FLAG_NEED_RTNL,
11301 .cmd = NL80211_CMD_RADAR_DETECT,
11302 .doit = nl80211_start_radar_detection,
11303 .policy = nl80211_policy,
11304 .flags = GENL_ADMIN_PERM,
11305 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11306 NL80211_FLAG_NEED_RTNL,
11309 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11310 .doit = nl80211_get_protocol_features,
11311 .policy = nl80211_policy,
11314 .cmd = NL80211_CMD_UPDATE_FT_IES,
11315 .doit = nl80211_update_ft_ies,
11316 .policy = nl80211_policy,
11317 .flags = GENL_ADMIN_PERM,
11318 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11319 NL80211_FLAG_NEED_RTNL,
11322 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11323 .doit = nl80211_crit_protocol_start,
11324 .policy = nl80211_policy,
11325 .flags = GENL_ADMIN_PERM,
11326 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11327 NL80211_FLAG_NEED_RTNL,
11330 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11331 .doit = nl80211_crit_protocol_stop,
11332 .policy = nl80211_policy,
11333 .flags = GENL_ADMIN_PERM,
11334 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11335 NL80211_FLAG_NEED_RTNL,
11338 .cmd = NL80211_CMD_GET_COALESCE,
11339 .doit = nl80211_get_coalesce,
11340 .policy = nl80211_policy,
11341 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11342 NL80211_FLAG_NEED_RTNL,
11345 .cmd = NL80211_CMD_SET_COALESCE,
11346 .doit = nl80211_set_coalesce,
11347 .policy = nl80211_policy,
11348 .flags = GENL_ADMIN_PERM,
11349 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11350 NL80211_FLAG_NEED_RTNL,
11353 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11354 .doit = nl80211_channel_switch,
11355 .policy = nl80211_policy,
11356 .flags = GENL_ADMIN_PERM,
11357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11358 NL80211_FLAG_NEED_RTNL,
11361 .cmd = NL80211_CMD_VENDOR,
11362 .doit = nl80211_vendor_cmd,
11363 .dumpit = nl80211_vendor_cmd_dump,
11364 .policy = nl80211_policy,
11365 .flags = GENL_ADMIN_PERM,
11366 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11367 NL80211_FLAG_NEED_RTNL,
11370 .cmd = NL80211_CMD_SET_QOS_MAP,
11371 .doit = nl80211_set_qos_map,
11372 .policy = nl80211_policy,
11373 .flags = GENL_ADMIN_PERM,
11374 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11375 NL80211_FLAG_NEED_RTNL,
11378 .cmd = NL80211_CMD_ADD_TX_TS,
11379 .doit = nl80211_add_tx_ts,
11380 .policy = nl80211_policy,
11381 .flags = GENL_ADMIN_PERM,
11382 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11383 NL80211_FLAG_NEED_RTNL,
11386 .cmd = NL80211_CMD_DEL_TX_TS,
11387 .doit = nl80211_del_tx_ts,
11388 .policy = nl80211_policy,
11389 .flags = GENL_ADMIN_PERM,
11390 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11391 NL80211_FLAG_NEED_RTNL,
11394 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11395 .doit = nl80211_tdls_channel_switch,
11396 .policy = nl80211_policy,
11397 .flags = GENL_ADMIN_PERM,
11398 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11399 NL80211_FLAG_NEED_RTNL,
11402 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11403 .doit = nl80211_tdls_cancel_channel_switch,
11404 .policy = nl80211_policy,
11405 .flags = GENL_ADMIN_PERM,
11406 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11407 NL80211_FLAG_NEED_RTNL,
11411 /* notification functions */
11413 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11414 enum nl80211_commands cmd)
11416 struct sk_buff *msg;
11417 struct nl80211_dump_wiphy_state state = {};
11419 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11420 cmd != NL80211_CMD_DEL_WIPHY);
11422 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11426 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11431 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11432 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11435 static int nl80211_add_scan_req(struct sk_buff *msg,
11436 struct cfg80211_registered_device *rdev)
11438 struct cfg80211_scan_request *req = rdev->scan_req;
11439 struct nlattr *nest;
11445 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11447 goto nla_put_failure;
11448 for (i = 0; i < req->n_ssids; i++) {
11449 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11450 goto nla_put_failure;
11452 nla_nest_end(msg, nest);
11454 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11456 goto nla_put_failure;
11457 for (i = 0; i < req->n_channels; i++) {
11458 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11459 goto nla_put_failure;
11461 nla_nest_end(msg, nest);
11464 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11465 goto nla_put_failure;
11468 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11469 goto nla_put_failure;
11476 static int nl80211_send_scan_msg(struct sk_buff *msg,
11477 struct cfg80211_registered_device *rdev,
11478 struct wireless_dev *wdev,
11479 u32 portid, u32 seq, int flags,
11484 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11488 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11489 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11490 wdev->netdev->ifindex)) ||
11491 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11492 goto nla_put_failure;
11494 /* ignore errors and send incomplete event anyway */
11495 nl80211_add_scan_req(msg, rdev);
11497 genlmsg_end(msg, hdr);
11501 genlmsg_cancel(msg, hdr);
11506 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11507 struct cfg80211_registered_device *rdev,
11508 struct net_device *netdev,
11509 u32 portid, u32 seq, int flags, u32 cmd)
11513 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11517 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11518 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11519 goto nla_put_failure;
11521 genlmsg_end(msg, hdr);
11525 genlmsg_cancel(msg, hdr);
11529 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11530 struct wireless_dev *wdev)
11532 struct sk_buff *msg;
11534 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11538 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11539 NL80211_CMD_TRIGGER_SCAN) < 0) {
11544 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11545 NL80211_MCGRP_SCAN, GFP_KERNEL);
11548 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11549 struct wireless_dev *wdev, bool aborted)
11551 struct sk_buff *msg;
11553 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11557 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11558 aborted ? NL80211_CMD_SCAN_ABORTED :
11559 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11567 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11568 struct sk_buff *msg)
11573 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11574 NL80211_MCGRP_SCAN, GFP_KERNEL);
11577 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11578 struct net_device *netdev)
11580 struct sk_buff *msg;
11582 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11586 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11587 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11592 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11593 NL80211_MCGRP_SCAN, GFP_KERNEL);
11596 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11597 struct net_device *netdev, u32 cmd)
11599 struct sk_buff *msg;
11601 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11605 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11610 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11611 NL80211_MCGRP_SCAN, GFP_KERNEL);
11614 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11615 struct regulatory_request *request)
11617 /* Userspace can always count this one always being set */
11618 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11619 goto nla_put_failure;
11621 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11622 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11623 NL80211_REGDOM_TYPE_WORLD))
11624 goto nla_put_failure;
11625 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11626 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11627 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11628 goto nla_put_failure;
11629 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11630 request->intersect) {
11631 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11632 NL80211_REGDOM_TYPE_INTERSECTION))
11633 goto nla_put_failure;
11635 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11636 NL80211_REGDOM_TYPE_COUNTRY) ||
11637 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11639 goto nla_put_failure;
11642 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11643 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11646 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11647 goto nla_put_failure;
11650 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11651 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11652 goto nla_put_failure;
11662 * This can happen on global regulatory changes or device specific settings
11663 * based on custom regulatory domains.
11665 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11666 struct regulatory_request *request)
11668 struct sk_buff *msg;
11671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11675 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11681 if (nl80211_reg_change_event_fill(msg, request) == false)
11682 goto nla_put_failure;
11684 genlmsg_end(msg, hdr);
11687 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11688 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11694 genlmsg_cancel(msg, hdr);
11698 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11699 struct net_device *netdev,
11700 const u8 *buf, size_t len,
11701 enum nl80211_commands cmd, gfp_t gfp,
11704 struct sk_buff *msg;
11707 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11711 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11717 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11718 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11719 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11720 goto nla_put_failure;
11722 if (uapsd_queues >= 0) {
11723 struct nlattr *nla_wmm =
11724 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11726 goto nla_put_failure;
11728 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11730 goto nla_put_failure;
11732 nla_nest_end(msg, nla_wmm);
11735 genlmsg_end(msg, hdr);
11737 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11738 NL80211_MCGRP_MLME, gfp);
11742 genlmsg_cancel(msg, hdr);
11746 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11747 struct net_device *netdev, const u8 *buf,
11748 size_t len, gfp_t gfp)
11750 nl80211_send_mlme_event(rdev, netdev, buf, len,
11751 NL80211_CMD_AUTHENTICATE, gfp, -1);
11754 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11755 struct net_device *netdev, const u8 *buf,
11756 size_t len, gfp_t gfp, int uapsd_queues)
11758 nl80211_send_mlme_event(rdev, netdev, buf, len,
11759 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11762 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11763 struct net_device *netdev, const u8 *buf,
11764 size_t len, gfp_t gfp)
11766 nl80211_send_mlme_event(rdev, netdev, buf, len,
11767 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11770 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11771 struct net_device *netdev, const u8 *buf,
11772 size_t len, gfp_t gfp)
11774 nl80211_send_mlme_event(rdev, netdev, buf, len,
11775 NL80211_CMD_DISASSOCIATE, gfp, -1);
11778 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11781 struct wireless_dev *wdev = dev->ieee80211_ptr;
11782 struct wiphy *wiphy = wdev->wiphy;
11783 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11784 const struct ieee80211_mgmt *mgmt = (void *)buf;
11787 if (WARN_ON(len < 2))
11790 if (ieee80211_is_deauth(mgmt->frame_control))
11791 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11793 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11795 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11796 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11798 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11800 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11801 struct net_device *netdev, int cmd,
11802 const u8 *addr, gfp_t gfp)
11804 struct sk_buff *msg;
11807 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11811 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11817 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11818 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11819 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11820 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11821 goto nla_put_failure;
11823 genlmsg_end(msg, hdr);
11825 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11826 NL80211_MCGRP_MLME, gfp);
11830 genlmsg_cancel(msg, hdr);
11834 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11835 struct net_device *netdev, const u8 *addr,
11838 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11842 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11843 struct net_device *netdev, const u8 *addr,
11846 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11850 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11851 struct net_device *netdev, const u8 *bssid,
11852 const u8 *req_ie, size_t req_ie_len,
11853 const u8 *resp_ie, size_t resp_ie_len,
11854 u16 status, gfp_t gfp)
11856 struct sk_buff *msg;
11859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11863 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11869 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11870 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11871 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11872 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11874 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11876 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11877 goto nla_put_failure;
11879 genlmsg_end(msg, hdr);
11881 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11882 NL80211_MCGRP_MLME, gfp);
11886 genlmsg_cancel(msg, hdr);
11891 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11892 struct net_device *netdev, const u8 *bssid,
11893 const u8 *req_ie, size_t req_ie_len,
11894 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11896 struct sk_buff *msg;
11899 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11903 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11909 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11910 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11911 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11913 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11915 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11916 goto nla_put_failure;
11918 genlmsg_end(msg, hdr);
11920 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11921 NL80211_MCGRP_MLME, gfp);
11925 genlmsg_cancel(msg, hdr);
11930 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11931 struct net_device *netdev, u16 reason,
11932 const u8 *ie, size_t ie_len, bool from_ap)
11934 struct sk_buff *msg;
11937 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11941 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11947 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11948 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11949 (from_ap && reason &&
11950 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11952 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11953 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11954 goto nla_put_failure;
11956 genlmsg_end(msg, hdr);
11958 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11959 NL80211_MCGRP_MLME, GFP_KERNEL);
11963 genlmsg_cancel(msg, hdr);
11968 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11969 struct net_device *netdev, const u8 *bssid,
11972 struct sk_buff *msg;
11975 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11979 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11985 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11986 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11987 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11988 goto nla_put_failure;
11990 genlmsg_end(msg, hdr);
11992 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11993 NL80211_MCGRP_MLME, gfp);
11997 genlmsg_cancel(msg, hdr);
12001 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12002 const u8* ie, u8 ie_len, gfp_t gfp)
12004 struct wireless_dev *wdev = dev->ieee80211_ptr;
12005 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12006 struct sk_buff *msg;
12009 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12012 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12014 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12018 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12024 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12025 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12026 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12028 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12029 goto nla_put_failure;
12031 genlmsg_end(msg, hdr);
12033 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12034 NL80211_MCGRP_MLME, gfp);
12038 genlmsg_cancel(msg, hdr);
12041 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
12043 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12044 struct net_device *netdev, const u8 *addr,
12045 enum nl80211_key_type key_type, int key_id,
12046 const u8 *tsc, gfp_t gfp)
12048 struct sk_buff *msg;
12051 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12055 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12061 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12062 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12063 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12064 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12066 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12067 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12068 goto nla_put_failure;
12070 genlmsg_end(msg, hdr);
12072 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12073 NL80211_MCGRP_MLME, gfp);
12077 genlmsg_cancel(msg, hdr);
12081 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12082 struct ieee80211_channel *channel_before,
12083 struct ieee80211_channel *channel_after)
12085 struct sk_buff *msg;
12087 struct nlattr *nl_freq;
12089 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
12093 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12100 * Since we are applying the beacon hint to a wiphy we know its
12101 * wiphy_idx is valid
12103 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12104 goto nla_put_failure;
12107 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12109 goto nla_put_failure;
12110 if (nl80211_msg_put_channel(msg, channel_before, false))
12111 goto nla_put_failure;
12112 nla_nest_end(msg, nl_freq);
12115 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12117 goto nla_put_failure;
12118 if (nl80211_msg_put_channel(msg, channel_after, false))
12119 goto nla_put_failure;
12120 nla_nest_end(msg, nl_freq);
12122 genlmsg_end(msg, hdr);
12125 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12126 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12132 genlmsg_cancel(msg, hdr);
12136 static void nl80211_send_remain_on_chan_event(
12137 int cmd, struct cfg80211_registered_device *rdev,
12138 struct wireless_dev *wdev, u64 cookie,
12139 struct ieee80211_channel *chan,
12140 unsigned int duration, gfp_t gfp)
12142 struct sk_buff *msg;
12145 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12149 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12155 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12156 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12157 wdev->netdev->ifindex)) ||
12158 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12159 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
12160 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12161 NL80211_CHAN_NO_HT) ||
12162 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12163 goto nla_put_failure;
12165 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12166 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12167 goto nla_put_failure;
12169 genlmsg_end(msg, hdr);
12171 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12172 NL80211_MCGRP_MLME, gfp);
12176 genlmsg_cancel(msg, hdr);
12180 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12181 struct ieee80211_channel *chan,
12182 unsigned int duration, gfp_t gfp)
12184 struct wiphy *wiphy = wdev->wiphy;
12185 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12187 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
12188 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
12189 rdev, wdev, cookie, chan,
12192 EXPORT_SYMBOL(cfg80211_ready_on_channel);
12194 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12195 struct ieee80211_channel *chan,
12198 struct wiphy *wiphy = wdev->wiphy;
12199 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12201 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
12202 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12203 rdev, wdev, cookie, chan, 0, gfp);
12205 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
12207 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12208 struct station_info *sinfo, gfp_t gfp)
12210 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12211 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12212 struct sk_buff *msg;
12214 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12216 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12220 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
12221 rdev, dev, mac_addr, sinfo) < 0) {
12226 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12227 NL80211_MCGRP_MLME, gfp);
12229 EXPORT_SYMBOL(cfg80211_new_sta);
12231 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12232 struct station_info *sinfo, gfp_t gfp)
12234 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12235 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12236 struct sk_buff *msg;
12237 struct station_info empty_sinfo = {};
12240 sinfo = &empty_sinfo;
12242 trace_cfg80211_del_sta(dev, mac_addr);
12244 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12248 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
12249 rdev, dev, mac_addr, sinfo) < 0) {
12254 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12255 NL80211_MCGRP_MLME, gfp);
12257 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
12259 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12260 enum nl80211_connect_failed_reason reason,
12263 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12264 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12265 struct sk_buff *msg;
12268 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12272 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12278 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12279 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12280 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12281 goto nla_put_failure;
12283 genlmsg_end(msg, hdr);
12285 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12286 NL80211_MCGRP_MLME, gfp);
12290 genlmsg_cancel(msg, hdr);
12293 EXPORT_SYMBOL(cfg80211_conn_failed);
12295 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12296 const u8 *addr, gfp_t gfp)
12298 struct wireless_dev *wdev = dev->ieee80211_ptr;
12299 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12300 struct sk_buff *msg;
12302 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
12307 msg = nlmsg_new(100, gfp);
12311 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12317 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12318 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12319 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12320 goto nla_put_failure;
12322 genlmsg_end(msg, hdr);
12323 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12327 genlmsg_cancel(msg, hdr);
12332 bool cfg80211_rx_spurious_frame(struct net_device *dev,
12333 const u8 *addr, gfp_t gfp)
12335 struct wireless_dev *wdev = dev->ieee80211_ptr;
12338 trace_cfg80211_rx_spurious_frame(dev, addr);
12340 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12341 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12342 trace_cfg80211_return_bool(false);
12345 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12347 trace_cfg80211_return_bool(ret);
12350 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
12352 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12353 const u8 *addr, gfp_t gfp)
12355 struct wireless_dev *wdev = dev->ieee80211_ptr;
12358 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12360 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12361 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12362 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12363 trace_cfg80211_return_bool(false);
12366 ret = __nl80211_unexpected_frame(dev,
12367 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12369 trace_cfg80211_return_bool(ret);
12372 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12374 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12375 struct wireless_dev *wdev, u32 nlportid,
12376 int freq, int sig_dbm,
12377 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12379 struct net_device *netdev = wdev->netdev;
12380 struct sk_buff *msg;
12383 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12387 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12393 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12394 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12395 netdev->ifindex)) ||
12396 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12397 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12399 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12400 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12402 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12403 goto nla_put_failure;
12405 genlmsg_end(msg, hdr);
12407 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12410 genlmsg_cancel(msg, hdr);
12415 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12416 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12418 struct wiphy *wiphy = wdev->wiphy;
12419 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12420 struct net_device *netdev = wdev->netdev;
12421 struct sk_buff *msg;
12424 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12426 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12430 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12436 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12437 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12438 netdev->ifindex)) ||
12439 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12440 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12441 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12442 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12443 goto nla_put_failure;
12445 genlmsg_end(msg, hdr);
12447 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12448 NL80211_MCGRP_MLME, gfp);
12452 genlmsg_cancel(msg, hdr);
12455 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12457 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12458 const char *mac, gfp_t gfp)
12460 struct wireless_dev *wdev = dev->ieee80211_ptr;
12461 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12462 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12468 cb = (void **)msg->cb;
12470 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12476 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12477 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12478 goto nla_put_failure;
12480 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12481 goto nla_put_failure;
12483 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12485 goto nla_put_failure;
12495 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12497 void **cb = (void **)msg->cb;
12498 struct cfg80211_registered_device *rdev = cb[2];
12500 nla_nest_end(msg, cb[1]);
12501 genlmsg_end(msg, cb[0]);
12503 memset(msg->cb, 0, sizeof(msg->cb));
12505 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12506 NL80211_MCGRP_MLME, gfp);
12509 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12510 enum nl80211_cqm_rssi_threshold_event rssi_event,
12513 struct sk_buff *msg;
12515 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12517 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12518 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12521 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12525 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12527 goto nla_put_failure;
12529 cfg80211_send_cqm(msg, gfp);
12536 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12538 void cfg80211_cqm_txe_notify(struct net_device *dev,
12539 const u8 *peer, u32 num_packets,
12540 u32 rate, u32 intvl, gfp_t gfp)
12542 struct sk_buff *msg;
12544 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12548 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12549 goto nla_put_failure;
12551 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12552 goto nla_put_failure;
12554 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12555 goto nla_put_failure;
12557 cfg80211_send_cqm(msg, gfp);
12563 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12565 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12566 const u8 *peer, u32 num_packets, gfp_t gfp)
12568 struct sk_buff *msg;
12570 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12572 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12576 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12577 goto nla_put_failure;
12579 cfg80211_send_cqm(msg, gfp);
12585 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12587 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12589 struct sk_buff *msg;
12591 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12595 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12596 goto nla_put_failure;
12598 cfg80211_send_cqm(msg, gfp);
12604 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12606 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12607 struct net_device *netdev, const u8 *bssid,
12608 const u8 *replay_ctr, gfp_t gfp)
12610 struct sk_buff *msg;
12611 struct nlattr *rekey_attr;
12614 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12618 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12624 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12625 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12626 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12627 goto nla_put_failure;
12629 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12631 goto nla_put_failure;
12633 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12634 NL80211_REPLAY_CTR_LEN, replay_ctr))
12635 goto nla_put_failure;
12637 nla_nest_end(msg, rekey_attr);
12639 genlmsg_end(msg, hdr);
12641 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12642 NL80211_MCGRP_MLME, gfp);
12646 genlmsg_cancel(msg, hdr);
12650 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12651 const u8 *replay_ctr, gfp_t gfp)
12653 struct wireless_dev *wdev = dev->ieee80211_ptr;
12654 struct wiphy *wiphy = wdev->wiphy;
12655 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12657 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12658 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12660 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12663 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12664 struct net_device *netdev, int index,
12665 const u8 *bssid, bool preauth, gfp_t gfp)
12667 struct sk_buff *msg;
12668 struct nlattr *attr;
12671 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12675 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12681 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12682 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12683 goto nla_put_failure;
12685 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12687 goto nla_put_failure;
12689 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12690 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12692 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12693 goto nla_put_failure;
12695 nla_nest_end(msg, attr);
12697 genlmsg_end(msg, hdr);
12699 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12700 NL80211_MCGRP_MLME, gfp);
12704 genlmsg_cancel(msg, hdr);
12708 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12709 const u8 *bssid, bool preauth, gfp_t gfp)
12711 struct wireless_dev *wdev = dev->ieee80211_ptr;
12712 struct wiphy *wiphy = wdev->wiphy;
12713 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12715 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12716 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12718 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12720 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12721 struct net_device *netdev,
12722 struct cfg80211_chan_def *chandef,
12724 enum nl80211_commands notif,
12727 struct sk_buff *msg;
12730 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12734 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12740 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12741 goto nla_put_failure;
12743 if (nl80211_send_chandef(msg, chandef))
12744 goto nla_put_failure;
12746 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12747 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12748 goto nla_put_failure;
12750 genlmsg_end(msg, hdr);
12752 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12753 NL80211_MCGRP_MLME, gfp);
12757 genlmsg_cancel(msg, hdr);
12761 void cfg80211_ch_switch_notify(struct net_device *dev,
12762 struct cfg80211_chan_def *chandef)
12764 struct wireless_dev *wdev = dev->ieee80211_ptr;
12765 struct wiphy *wiphy = wdev->wiphy;
12766 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12768 ASSERT_WDEV_LOCK(wdev);
12770 trace_cfg80211_ch_switch_notify(dev, chandef);
12772 wdev->chandef = *chandef;
12773 wdev->preset_chandef = *chandef;
12774 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12775 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12777 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12779 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12780 struct cfg80211_chan_def *chandef,
12783 struct wireless_dev *wdev = dev->ieee80211_ptr;
12784 struct wiphy *wiphy = wdev->wiphy;
12785 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12787 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12789 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12790 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12792 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12795 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12796 const struct cfg80211_chan_def *chandef,
12797 enum nl80211_radar_event event,
12798 struct net_device *netdev, gfp_t gfp)
12800 struct sk_buff *msg;
12803 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12807 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12813 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12814 goto nla_put_failure;
12816 /* NOP and radar events don't need a netdev parameter */
12818 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12820 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12821 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12822 goto nla_put_failure;
12825 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12826 goto nla_put_failure;
12828 if (nl80211_send_chandef(msg, chandef))
12829 goto nla_put_failure;
12831 genlmsg_end(msg, hdr);
12833 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12834 NL80211_MCGRP_MLME, gfp);
12838 genlmsg_cancel(msg, hdr);
12842 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12843 u64 cookie, bool acked, gfp_t gfp)
12845 struct wireless_dev *wdev = dev->ieee80211_ptr;
12846 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12847 struct sk_buff *msg;
12850 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12852 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12857 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12863 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12864 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12865 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12866 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12867 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12868 goto nla_put_failure;
12870 genlmsg_end(msg, hdr);
12872 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12873 NL80211_MCGRP_MLME, gfp);
12877 genlmsg_cancel(msg, hdr);
12880 EXPORT_SYMBOL(cfg80211_probe_status);
12882 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12883 const u8 *frame, size_t len,
12884 int freq, int sig_dbm)
12886 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12887 struct sk_buff *msg;
12889 struct cfg80211_beacon_registration *reg;
12891 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12893 spin_lock_bh(&rdev->beacon_registrations_lock);
12894 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12895 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12897 spin_unlock_bh(&rdev->beacon_registrations_lock);
12901 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12903 goto nla_put_failure;
12905 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12907 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12909 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12910 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12911 goto nla_put_failure;
12913 genlmsg_end(msg, hdr);
12915 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12917 spin_unlock_bh(&rdev->beacon_registrations_lock);
12921 spin_unlock_bh(&rdev->beacon_registrations_lock);
12923 genlmsg_cancel(msg, hdr);
12926 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12929 static int cfg80211_net_detect_results(struct sk_buff *msg,
12930 struct cfg80211_wowlan_wakeup *wakeup)
12932 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12933 struct nlattr *nl_results, *nl_match, *nl_freqs;
12936 nl_results = nla_nest_start(
12937 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12941 for (i = 0; i < nd->n_matches; i++) {
12942 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12944 nl_match = nla_nest_start(msg, i);
12948 /* The SSID attribute is optional in nl80211, but for
12949 * simplicity reasons it's always present in the
12950 * cfg80211 structure. If a driver can't pass the
12951 * SSID, that needs to be changed. A zero length SSID
12952 * is still a valid SSID (wildcard), so it cannot be
12953 * used for this purpose.
12955 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12956 match->ssid.ssid)) {
12957 nla_nest_cancel(msg, nl_match);
12961 if (match->n_channels) {
12962 nl_freqs = nla_nest_start(
12963 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12965 nla_nest_cancel(msg, nl_match);
12969 for (j = 0; j < match->n_channels; j++) {
12970 if (nla_put_u32(msg, j, match->channels[j])) {
12971 nla_nest_cancel(msg, nl_freqs);
12972 nla_nest_cancel(msg, nl_match);
12977 nla_nest_end(msg, nl_freqs);
12980 nla_nest_end(msg, nl_match);
12984 nla_nest_end(msg, nl_results);
12988 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12989 struct cfg80211_wowlan_wakeup *wakeup,
12992 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12993 struct sk_buff *msg;
12997 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13000 size += wakeup->packet_present_len;
13002 msg = nlmsg_new(size, gfp);
13006 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13010 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13011 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13014 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13015 wdev->netdev->ifindex))
13019 struct nlattr *reasons;
13021 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
13025 if (wakeup->disconnect &&
13026 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13028 if (wakeup->magic_pkt &&
13029 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13031 if (wakeup->gtk_rekey_failure &&
13032 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13034 if (wakeup->eap_identity_req &&
13035 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13037 if (wakeup->four_way_handshake &&
13038 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13040 if (wakeup->rfkill_release &&
13041 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13044 if (wakeup->pattern_idx >= 0 &&
13045 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13046 wakeup->pattern_idx))
13049 if (wakeup->tcp_match &&
13050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13053 if (wakeup->tcp_connlost &&
13054 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13057 if (wakeup->tcp_nomoretokens &&
13059 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13062 if (wakeup->packet) {
13063 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13064 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13066 if (!wakeup->packet_80211) {
13068 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13070 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13073 if (wakeup->packet_len &&
13074 nla_put_u32(msg, len_attr, wakeup->packet_len))
13077 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13082 if (wakeup->net_detect &&
13083 cfg80211_net_detect_results(msg, wakeup))
13086 nla_nest_end(msg, reasons);
13089 genlmsg_end(msg, hdr);
13091 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13092 NL80211_MCGRP_MLME, gfp);
13098 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13101 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13102 enum nl80211_tdls_operation oper,
13103 u16 reason_code, gfp_t gfp)
13105 struct wireless_dev *wdev = dev->ieee80211_ptr;
13106 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13107 struct sk_buff *msg;
13110 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13113 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13117 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13123 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13124 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13125 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13126 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13127 (reason_code > 0 &&
13128 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13129 goto nla_put_failure;
13131 genlmsg_end(msg, hdr);
13133 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13134 NL80211_MCGRP_MLME, gfp);
13138 genlmsg_cancel(msg, hdr);
13141 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13143 static int nl80211_netlink_notify(struct notifier_block * nb,
13144 unsigned long state,
13147 struct netlink_notify *notify = _notify;
13148 struct cfg80211_registered_device *rdev;
13149 struct wireless_dev *wdev;
13150 struct cfg80211_beacon_registration *reg, *tmp;
13152 if (state != NETLINK_URELEASE)
13153 return NOTIFY_DONE;
13157 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
13158 bool schedule_destroy_work = false;
13159 bool schedule_scan_stop = false;
13160 struct cfg80211_sched_scan_request *sched_scan_req =
13161 rcu_dereference(rdev->sched_scan_req);
13163 if (sched_scan_req && notify->portid &&
13164 sched_scan_req->owner_nlportid == notify->portid)
13165 schedule_scan_stop = true;
13167 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
13168 cfg80211_mlme_unregister_socket(wdev, notify->portid);
13170 if (wdev->owner_nlportid == notify->portid)
13171 schedule_destroy_work = true;
13174 spin_lock_bh(&rdev->beacon_registrations_lock);
13175 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13177 if (reg->nlportid == notify->portid) {
13178 list_del(®->list);
13183 spin_unlock_bh(&rdev->beacon_registrations_lock);
13185 if (schedule_destroy_work) {
13186 struct cfg80211_iface_destroy *destroy;
13188 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13190 destroy->nlportid = notify->portid;
13191 spin_lock(&rdev->destroy_list_lock);
13192 list_add(&destroy->list, &rdev->destroy_list);
13193 spin_unlock(&rdev->destroy_list_lock);
13194 schedule_work(&rdev->destroy_work);
13196 } else if (schedule_scan_stop) {
13197 sched_scan_req->owner_nlportid = 0;
13199 if (rdev->ops->sched_scan_stop &&
13200 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13201 schedule_work(&rdev->sched_scan_stop_wk);
13208 * It is possible that the user space process that is controlling the
13209 * indoor setting disappeared, so notify the regulatory core.
13211 regulatory_netlink_notify(notify->portid);
13215 static struct notifier_block nl80211_netlink_notifier = {
13216 .notifier_call = nl80211_netlink_notify,
13219 void cfg80211_ft_event(struct net_device *netdev,
13220 struct cfg80211_ft_event_params *ft_event)
13222 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
13223 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13224 struct sk_buff *msg;
13227 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13229 if (!ft_event->target_ap)
13232 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13236 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
13240 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13241 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13242 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13245 if (ft_event->ies &&
13246 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13248 if (ft_event->ric_ies &&
13249 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13250 ft_event->ric_ies))
13253 genlmsg_end(msg, hdr);
13255 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13256 NL80211_MCGRP_MLME, GFP_KERNEL);
13261 EXPORT_SYMBOL(cfg80211_ft_event);
13263 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13265 struct cfg80211_registered_device *rdev;
13266 struct sk_buff *msg;
13270 rdev = wiphy_to_rdev(wdev->wiphy);
13271 if (!rdev->crit_proto_nlportid)
13274 nlportid = rdev->crit_proto_nlportid;
13275 rdev->crit_proto_nlportid = 0;
13277 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13281 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13283 goto nla_put_failure;
13285 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13286 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13287 goto nla_put_failure;
13289 genlmsg_end(msg, hdr);
13291 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13296 genlmsg_cancel(msg, hdr);
13300 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13302 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13304 struct wiphy *wiphy = wdev->wiphy;
13305 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13306 struct sk_buff *msg;
13309 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13313 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13317 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13318 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13319 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13322 genlmsg_end(msg, hdr);
13324 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13325 NL80211_MCGRP_MLME, GFP_KERNEL);
13331 /* initialisation/exit functions */
13333 int nl80211_init(void)
13337 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13342 err = netlink_register_notifier(&nl80211_netlink_notifier);
13348 genl_unregister_family(&nl80211_fam);
13352 void nl80211_exit(void)
13354 netlink_unregister_notifier(&nl80211_netlink_notifier);
13355 genl_unregister_family(&nl80211_fam);