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 &&
3972 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
3976 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
3977 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
3980 /* When you run into this, adjust the code below for the new flag */
3981 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3984 case CFG80211_STA_MESH_PEER_KERNEL:
3985 case CFG80211_STA_MESH_PEER_USER:
3987 * No ignoring the TDLS flag here -- the userspace mesh
3988 * code doesn't have the bug of including TDLS in the
3991 if (params->sta_flags_mask &
3992 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3993 BIT(NL80211_STA_FLAG_MFP) |
3994 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3997 case CFG80211_STA_TDLS_PEER_SETUP:
3998 case CFG80211_STA_TDLS_PEER_ACTIVE:
3999 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4001 /* ignore since it can't change */
4002 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4005 /* disallow mesh-specific things */
4006 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4008 if (params->local_pm)
4010 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4014 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4015 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4016 /* TDLS can't be set, ... */
4017 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4020 * ... but don't bother the driver with it. This works around
4021 * a hostapd/wpa_supplicant issue -- it always includes the
4022 * TLDS_PEER flag in the mask even for AP mode.
4024 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4027 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4028 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4029 /* reject other things that can't change */
4030 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4032 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4034 if (params->supported_rates)
4036 if (params->ext_capab || params->ht_capa || params->vht_capa)
4040 if (statype != CFG80211_STA_AP_CLIENT &&
4041 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4047 case CFG80211_STA_AP_MLME_CLIENT:
4048 /* Use this only for authorizing/unauthorizing a station */
4049 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4052 case CFG80211_STA_AP_CLIENT:
4053 case CFG80211_STA_AP_CLIENT_UNASSOC:
4054 /* accept only the listed bits */
4055 if (params->sta_flags_mask &
4056 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4057 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4058 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4059 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4060 BIT(NL80211_STA_FLAG_WME) |
4061 BIT(NL80211_STA_FLAG_MFP)))
4064 /* but authenticated/associated only if driver handles it */
4065 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4066 params->sta_flags_mask &
4067 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4068 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4071 case CFG80211_STA_IBSS:
4072 case CFG80211_STA_AP_STA:
4073 /* reject any changes other than AUTHORIZED */
4074 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4077 case CFG80211_STA_TDLS_PEER_SETUP:
4078 /* reject any changes other than AUTHORIZED or WME */
4079 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4080 BIT(NL80211_STA_FLAG_WME)))
4082 /* force (at least) rates when authorizing */
4083 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4084 !params->supported_rates)
4087 case CFG80211_STA_TDLS_PEER_ACTIVE:
4088 /* reject any changes */
4090 case CFG80211_STA_MESH_PEER_KERNEL:
4091 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4094 case CFG80211_STA_MESH_PEER_USER:
4095 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4096 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4103 EXPORT_SYMBOL(cfg80211_check_station_change);
4106 * Get vlan interface making sure it is running and on the right wiphy.
4108 static struct net_device *get_vlan(struct genl_info *info,
4109 struct cfg80211_registered_device *rdev)
4111 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4112 struct net_device *v;
4118 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4120 return ERR_PTR(-ENODEV);
4122 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4127 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4128 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4129 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4134 if (!netif_running(v)) {
4142 return ERR_PTR(ret);
4145 static const struct nla_policy
4146 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4147 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4148 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4151 static int nl80211_parse_sta_wme(struct genl_info *info,
4152 struct station_parameters *params)
4154 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4158 /* parse WME attributes if present */
4159 if (!info->attrs[NL80211_ATTR_STA_WME])
4162 nla = info->attrs[NL80211_ATTR_STA_WME];
4163 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4164 nl80211_sta_wme_policy);
4168 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4169 params->uapsd_queues = nla_get_u8(
4170 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4171 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4174 if (tb[NL80211_STA_WME_MAX_SP])
4175 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4177 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4180 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4185 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4186 struct station_parameters *params)
4188 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4189 params->supported_channels =
4190 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4191 params->supported_channels_len =
4192 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4194 * Need to include at least one (first channel, number of
4195 * channels) tuple for each subband, and must have proper
4196 * tuples for the rest of the data as well.
4198 if (params->supported_channels_len < 2)
4200 if (params->supported_channels_len % 2)
4204 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4205 params->supported_oper_classes =
4206 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4207 params->supported_oper_classes_len =
4208 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4210 * The value of the Length field of the Supported Operating
4211 * Classes element is between 2 and 253.
4213 if (params->supported_oper_classes_len < 2 ||
4214 params->supported_oper_classes_len > 253)
4220 static int nl80211_set_station_tdls(struct genl_info *info,
4221 struct station_parameters *params)
4224 /* Dummy STA entry gets updated once the peer capabilities are known */
4225 if (info->attrs[NL80211_ATTR_PEER_AID])
4226 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4227 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4229 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4230 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4232 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4234 err = nl80211_parse_sta_channel_info(info, params);
4238 return nl80211_parse_sta_wme(info, params);
4241 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4244 struct net_device *dev = info->user_ptr[1];
4245 struct station_parameters params;
4249 memset(¶ms, 0, sizeof(params));
4251 if (!rdev->ops->change_station)
4255 * AID and listen_interval properties can be set only for unassociated
4256 * station. Include these parameters here and will check them in
4257 * cfg80211_check_station_change().
4259 if (info->attrs[NL80211_ATTR_PEER_AID])
4260 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4262 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4263 params.listen_interval =
4264 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4266 params.listen_interval = -1;
4268 if (!info->attrs[NL80211_ATTR_MAC])
4271 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4273 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4274 params.supported_rates =
4275 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4276 params.supported_rates_len =
4277 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4280 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4282 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4283 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4286 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4288 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4289 params.ext_capab_len =
4290 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4293 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4296 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4297 params.plink_action =
4298 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4299 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4303 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4304 params.plink_state =
4305 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4306 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4308 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4311 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4312 enum nl80211_mesh_power_mode pm = nla_get_u32(
4313 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4315 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4316 pm > NL80211_MESH_POWER_MAX)
4319 params.local_pm = pm;
4322 /* Include parameters for TDLS peer (will check later) */
4323 err = nl80211_set_station_tdls(info, ¶ms);
4327 params.vlan = get_vlan(info, rdev);
4328 if (IS_ERR(params.vlan))
4329 return PTR_ERR(params.vlan);
4331 switch (dev->ieee80211_ptr->iftype) {
4332 case NL80211_IFTYPE_AP:
4333 case NL80211_IFTYPE_AP_VLAN:
4334 case NL80211_IFTYPE_P2P_GO:
4335 case NL80211_IFTYPE_P2P_CLIENT:
4336 case NL80211_IFTYPE_STATION:
4337 case NL80211_IFTYPE_ADHOC:
4338 case NL80211_IFTYPE_MESH_POINT:
4345 /* driver will call cfg80211_check_station_change() */
4346 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4350 dev_put(params.vlan);
4355 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4359 struct net_device *dev = info->user_ptr[1];
4360 struct station_parameters params;
4361 u8 *mac_addr = NULL;
4363 memset(¶ms, 0, sizeof(params));
4365 if (!rdev->ops->add_station)
4368 if (!info->attrs[NL80211_ATTR_MAC])
4371 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4374 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4377 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4378 !info->attrs[NL80211_ATTR_PEER_AID])
4381 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4382 params.supported_rates =
4383 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4384 params.supported_rates_len =
4385 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4386 params.listen_interval =
4387 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4389 if (info->attrs[NL80211_ATTR_PEER_AID])
4390 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4392 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4393 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4396 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4398 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4399 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4402 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4404 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4405 params.ext_capab_len =
4406 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4409 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4411 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4413 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4415 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4417 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4418 params.opmode_notif_used = true;
4419 params.opmode_notif =
4420 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4423 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4424 params.plink_action =
4425 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4426 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4430 err = nl80211_parse_sta_channel_info(info, ¶ms);
4434 err = nl80211_parse_sta_wme(info, ¶ms);
4438 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4441 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4442 * as userspace might just pass through the capabilities from the IEs
4443 * directly, rather than enforcing this restriction and returning an
4444 * error in this case.
4446 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4447 params.ht_capa = NULL;
4448 params.vht_capa = NULL;
4451 /* When you run into this, adjust the code below for the new flag */
4452 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4454 switch (dev->ieee80211_ptr->iftype) {
4455 case NL80211_IFTYPE_AP:
4456 case NL80211_IFTYPE_AP_VLAN:
4457 case NL80211_IFTYPE_P2P_GO:
4458 /* ignore WME attributes if iface/sta is not capable */
4459 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4460 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4461 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4463 /* TDLS peers cannot be added */
4464 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4465 info->attrs[NL80211_ATTR_PEER_AID])
4467 /* but don't bother the driver with it */
4468 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4470 /* allow authenticated/associated only if driver handles it */
4471 if (!(rdev->wiphy.features &
4472 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4473 params.sta_flags_mask &
4474 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4475 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4478 /* must be last in here for error handling */
4479 params.vlan = get_vlan(info, rdev);
4480 if (IS_ERR(params.vlan))
4481 return PTR_ERR(params.vlan);
4483 case NL80211_IFTYPE_MESH_POINT:
4484 /* ignore uAPSD data */
4485 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4487 /* associated is disallowed */
4488 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4490 /* TDLS peers cannot be added */
4491 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4492 info->attrs[NL80211_ATTR_PEER_AID])
4495 case NL80211_IFTYPE_STATION:
4496 case NL80211_IFTYPE_P2P_CLIENT:
4497 /* ignore uAPSD data */
4498 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4500 /* these are disallowed */
4501 if (params.sta_flags_mask &
4502 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4503 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4505 /* Only TDLS peers can be added */
4506 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4508 /* Can only add if TDLS ... */
4509 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4511 /* ... with external setup is supported */
4512 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4515 * Older wpa_supplicant versions always mark the TDLS peer
4516 * as authorized, but it shouldn't yet be.
4518 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4524 /* be aware of params.vlan when changing code here */
4526 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4529 dev_put(params.vlan);
4533 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4535 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4536 struct net_device *dev = info->user_ptr[1];
4537 struct station_del_parameters params;
4539 memset(¶ms, 0, sizeof(params));
4541 if (info->attrs[NL80211_ATTR_MAC])
4542 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4544 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4545 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4546 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4547 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4550 if (!rdev->ops->del_station)
4553 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4555 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4556 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4557 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4560 /* Default to Deauthentication frame */
4561 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4564 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4565 params.reason_code =
4566 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4567 if (params.reason_code == 0)
4568 return -EINVAL; /* 0 is reserved */
4570 /* Default to reason code 2 */
4571 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4574 return rdev_del_station(rdev, dev, ¶ms);
4577 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4578 int flags, struct net_device *dev,
4579 u8 *dst, u8 *next_hop,
4580 struct mpath_info *pinfo)
4583 struct nlattr *pinfoattr;
4585 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4589 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4590 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4591 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4592 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4593 goto nla_put_failure;
4595 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4597 goto nla_put_failure;
4598 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4599 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4601 goto nla_put_failure;
4602 if (((pinfo->filled & MPATH_INFO_SN) &&
4603 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4604 ((pinfo->filled & MPATH_INFO_METRIC) &&
4605 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4607 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4608 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4610 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4611 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4613 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4614 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4615 pinfo->discovery_timeout)) ||
4616 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4617 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4618 pinfo->discovery_retries)))
4619 goto nla_put_failure;
4621 nla_nest_end(msg, pinfoattr);
4623 genlmsg_end(msg, hdr);
4627 genlmsg_cancel(msg, hdr);
4631 static int nl80211_dump_mpath(struct sk_buff *skb,
4632 struct netlink_callback *cb)
4634 struct mpath_info pinfo;
4635 struct cfg80211_registered_device *rdev;
4636 struct wireless_dev *wdev;
4638 u8 next_hop[ETH_ALEN];
4639 int path_idx = cb->args[2];
4642 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4646 if (!rdev->ops->dump_mpath) {
4651 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4657 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4664 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4665 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4666 wdev->netdev, dst, next_hop,
4675 cb->args[2] = path_idx;
4678 nl80211_finish_wdev_dump(rdev);
4682 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4684 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4686 struct net_device *dev = info->user_ptr[1];
4687 struct mpath_info pinfo;
4688 struct sk_buff *msg;
4690 u8 next_hop[ETH_ALEN];
4692 memset(&pinfo, 0, sizeof(pinfo));
4694 if (!info->attrs[NL80211_ATTR_MAC])
4697 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4699 if (!rdev->ops->get_mpath)
4702 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4705 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4709 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4713 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4714 dev, dst, next_hop, &pinfo) < 0) {
4719 return genlmsg_reply(msg, info);
4722 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4725 struct net_device *dev = info->user_ptr[1];
4727 u8 *next_hop = NULL;
4729 if (!info->attrs[NL80211_ATTR_MAC])
4732 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4735 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4736 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4738 if (!rdev->ops->change_mpath)
4741 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4744 return rdev_change_mpath(rdev, dev, dst, next_hop);
4747 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4749 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4750 struct net_device *dev = info->user_ptr[1];
4752 u8 *next_hop = NULL;
4754 if (!info->attrs[NL80211_ATTR_MAC])
4757 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4760 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4761 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4763 if (!rdev->ops->add_mpath)
4766 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4769 return rdev_add_mpath(rdev, dev, dst, next_hop);
4772 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4775 struct net_device *dev = info->user_ptr[1];
4778 if (info->attrs[NL80211_ATTR_MAC])
4779 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4781 if (!rdev->ops->del_mpath)
4784 return rdev_del_mpath(rdev, dev, dst);
4787 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4791 struct net_device *dev = info->user_ptr[1];
4792 struct mpath_info pinfo;
4793 struct sk_buff *msg;
4797 memset(&pinfo, 0, sizeof(pinfo));
4799 if (!info->attrs[NL80211_ATTR_MAC])
4802 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4804 if (!rdev->ops->get_mpp)
4807 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4810 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4814 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4818 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4819 dev, dst, mpp, &pinfo) < 0) {
4824 return genlmsg_reply(msg, info);
4827 static int nl80211_dump_mpp(struct sk_buff *skb,
4828 struct netlink_callback *cb)
4830 struct mpath_info pinfo;
4831 struct cfg80211_registered_device *rdev;
4832 struct wireless_dev *wdev;
4835 int path_idx = cb->args[2];
4838 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4842 if (!rdev->ops->dump_mpp) {
4847 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4853 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4860 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4861 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4862 wdev->netdev, dst, mpp,
4870 cb->args[2] = path_idx;
4873 nl80211_finish_wdev_dump(rdev);
4877 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4879 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4880 struct net_device *dev = info->user_ptr[1];
4881 struct wireless_dev *wdev = dev->ieee80211_ptr;
4882 struct bss_parameters params;
4885 memset(¶ms, 0, sizeof(params));
4886 /* default to not changing parameters */
4887 params.use_cts_prot = -1;
4888 params.use_short_preamble = -1;
4889 params.use_short_slot_time = -1;
4890 params.ap_isolate = -1;
4891 params.ht_opmode = -1;
4892 params.p2p_ctwindow = -1;
4893 params.p2p_opp_ps = -1;
4895 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4896 params.use_cts_prot =
4897 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4898 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4899 params.use_short_preamble =
4900 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4901 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4902 params.use_short_slot_time =
4903 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4904 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4905 params.basic_rates =
4906 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4907 params.basic_rates_len =
4908 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4910 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4911 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4912 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4914 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4916 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4917 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4919 params.p2p_ctwindow =
4920 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4921 if (params.p2p_ctwindow < 0)
4923 if (params.p2p_ctwindow != 0 &&
4924 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4928 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4931 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4933 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4936 params.p2p_opp_ps = tmp;
4937 if (params.p2p_opp_ps &&
4938 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4942 if (!rdev->ops->change_bss)
4945 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4946 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4950 err = rdev_change_bss(rdev, dev, ¶ms);
4956 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4960 enum nl80211_user_reg_hint_type user_reg_hint_type;
4965 * You should only get this when cfg80211 hasn't yet initialized
4966 * completely when built-in to the kernel right between the time
4967 * window between nl80211_init() and regulatory_init(), if that is
4970 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4971 return -EINPROGRESS;
4973 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4974 user_reg_hint_type =
4975 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4977 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4979 switch (user_reg_hint_type) {
4980 case NL80211_USER_REG_HINT_USER:
4981 case NL80211_USER_REG_HINT_CELL_BASE:
4982 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
4985 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
4986 return regulatory_hint_user(data, user_reg_hint_type);
4987 case NL80211_USER_REG_HINT_INDOOR:
4988 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
4989 owner_nlportid = info->snd_portid;
4990 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
4996 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5002 static int nl80211_get_mesh_config(struct sk_buff *skb,
5003 struct genl_info *info)
5005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5006 struct net_device *dev = info->user_ptr[1];
5007 struct wireless_dev *wdev = dev->ieee80211_ptr;
5008 struct mesh_config cur_params;
5011 struct nlattr *pinfoattr;
5012 struct sk_buff *msg;
5014 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5017 if (!rdev->ops->get_mesh_config)
5021 /* If not connected, get default parameters */
5022 if (!wdev->mesh_id_len)
5023 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5025 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5031 /* Draw up a netlink message to send back */
5032 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5035 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5036 NL80211_CMD_GET_MESH_CONFIG);
5039 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5041 goto nla_put_failure;
5042 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5043 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5044 cur_params.dot11MeshRetryTimeout) ||
5045 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5046 cur_params.dot11MeshConfirmTimeout) ||
5047 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5048 cur_params.dot11MeshHoldingTimeout) ||
5049 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5050 cur_params.dot11MeshMaxPeerLinks) ||
5051 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5052 cur_params.dot11MeshMaxRetries) ||
5053 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5054 cur_params.dot11MeshTTL) ||
5055 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5056 cur_params.element_ttl) ||
5057 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5058 cur_params.auto_open_plinks) ||
5059 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5060 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5061 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5062 cur_params.dot11MeshHWMPmaxPREQretries) ||
5063 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5064 cur_params.path_refresh_time) ||
5065 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5066 cur_params.min_discovery_timeout) ||
5067 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5068 cur_params.dot11MeshHWMPactivePathTimeout) ||
5069 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5070 cur_params.dot11MeshHWMPpreqMinInterval) ||
5071 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5072 cur_params.dot11MeshHWMPperrMinInterval) ||
5073 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5074 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5075 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5076 cur_params.dot11MeshHWMPRootMode) ||
5077 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5078 cur_params.dot11MeshHWMPRannInterval) ||
5079 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5080 cur_params.dot11MeshGateAnnouncementProtocol) ||
5081 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5082 cur_params.dot11MeshForwarding) ||
5083 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5084 cur_params.rssi_threshold) ||
5085 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5086 cur_params.ht_opmode) ||
5087 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5088 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5089 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5090 cur_params.dot11MeshHWMProotInterval) ||
5091 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5092 cur_params.dot11MeshHWMPconfirmationInterval) ||
5093 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5094 cur_params.power_mode) ||
5095 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5096 cur_params.dot11MeshAwakeWindowDuration) ||
5097 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5098 cur_params.plink_timeout))
5099 goto nla_put_failure;
5100 nla_nest_end(msg, pinfoattr);
5101 genlmsg_end(msg, hdr);
5102 return genlmsg_reply(msg, info);
5105 genlmsg_cancel(msg, hdr);
5111 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5112 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5113 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5114 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5115 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5116 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5117 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5118 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5119 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5120 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5121 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5122 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5123 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5124 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5125 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5126 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5127 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5128 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5129 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5130 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5131 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5132 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5133 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5134 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5135 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5136 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5137 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5138 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5139 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5142 static const struct nla_policy
5143 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5144 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5145 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5146 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5147 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5148 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5149 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5150 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5151 .len = IEEE80211_MAX_DATA_LEN },
5152 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5155 static int nl80211_parse_mesh_config(struct genl_info *info,
5156 struct mesh_config *cfg,
5159 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5162 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5165 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5167 cfg->param = fn(tb[attr]); \
5168 mask |= (1 << (attr - 1)); \
5173 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5175 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5176 info->attrs[NL80211_ATTR_MESH_CONFIG],
5177 nl80211_meshconf_params_policy))
5180 /* This makes sure that there aren't more than 32 mesh config
5181 * parameters (otherwise our bitfield scheme would not work.) */
5182 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5184 /* Fill in the params struct */
5185 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5186 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5188 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5189 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5191 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5192 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5194 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5195 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5197 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5198 mask, NL80211_MESHCONF_MAX_RETRIES,
5200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5201 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5202 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5203 mask, NL80211_MESHCONF_ELEMENT_TTL,
5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5206 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5210 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5213 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5216 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5218 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5219 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5221 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5223 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5227 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5229 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5231 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5234 dot11MeshHWMPnetDiameterTraversalTime,
5236 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5239 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5242 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5245 dot11MeshGateAnnouncementProtocol, 0, 1,
5246 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5249 mask, NL80211_MESHCONF_FORWARDING,
5251 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5252 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5254 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5255 mask, NL80211_MESHCONF_HT_OPMODE,
5257 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5259 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5261 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5262 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5264 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5265 dot11MeshHWMPconfirmationInterval,
5267 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5270 NL80211_MESH_POWER_ACTIVE,
5271 NL80211_MESH_POWER_MAX,
5272 mask, NL80211_MESHCONF_POWER_MODE,
5274 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5276 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5277 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5278 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5285 #undef FILL_IN_MESH_PARAM_IF_SET
5288 static int nl80211_parse_mesh_setup(struct genl_info *info,
5289 struct mesh_setup *setup)
5291 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5292 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5294 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5296 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5297 info->attrs[NL80211_ATTR_MESH_SETUP],
5298 nl80211_mesh_setup_params_policy))
5301 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5302 setup->sync_method =
5303 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5304 IEEE80211_SYNC_METHOD_VENDOR :
5305 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5307 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5308 setup->path_sel_proto =
5309 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5310 IEEE80211_PATH_PROTOCOL_VENDOR :
5311 IEEE80211_PATH_PROTOCOL_HWMP;
5313 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5314 setup->path_metric =
5315 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5316 IEEE80211_PATH_METRIC_VENDOR :
5317 IEEE80211_PATH_METRIC_AIRTIME;
5320 if (tb[NL80211_MESH_SETUP_IE]) {
5321 struct nlattr *ieattr =
5322 tb[NL80211_MESH_SETUP_IE];
5323 if (!is_valid_ie_attr(ieattr))
5325 setup->ie = nla_data(ieattr);
5326 setup->ie_len = nla_len(ieattr);
5328 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5329 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5331 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5332 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5333 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5334 if (setup->is_secure)
5335 setup->user_mpm = true;
5337 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5338 if (!setup->user_mpm)
5341 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5347 static int nl80211_update_mesh_config(struct sk_buff *skb,
5348 struct genl_info *info)
5350 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5351 struct net_device *dev = info->user_ptr[1];
5352 struct wireless_dev *wdev = dev->ieee80211_ptr;
5353 struct mesh_config cfg;
5357 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5360 if (!rdev->ops->update_mesh_config)
5363 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5368 if (!wdev->mesh_id_len)
5372 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5379 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5380 struct sk_buff *msg)
5382 struct nlattr *nl_reg_rules;
5385 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5386 (regdom->dfs_region &&
5387 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5388 goto nla_put_failure;
5390 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5392 goto nla_put_failure;
5394 for (i = 0; i < regdom->n_reg_rules; i++) {
5395 struct nlattr *nl_reg_rule;
5396 const struct ieee80211_reg_rule *reg_rule;
5397 const struct ieee80211_freq_range *freq_range;
5398 const struct ieee80211_power_rule *power_rule;
5399 unsigned int max_bandwidth_khz;
5401 reg_rule = ®dom->reg_rules[i];
5402 freq_range = ®_rule->freq_range;
5403 power_rule = ®_rule->power_rule;
5405 nl_reg_rule = nla_nest_start(msg, i);
5407 goto nla_put_failure;
5409 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5410 if (!max_bandwidth_khz)
5411 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5414 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5416 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5417 freq_range->start_freq_khz) ||
5418 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5419 freq_range->end_freq_khz) ||
5420 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5421 max_bandwidth_khz) ||
5422 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5423 power_rule->max_antenna_gain) ||
5424 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5425 power_rule->max_eirp) ||
5426 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5427 reg_rule->dfs_cac_ms))
5428 goto nla_put_failure;
5430 nla_nest_end(msg, nl_reg_rule);
5433 nla_nest_end(msg, nl_reg_rules);
5440 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5442 const struct ieee80211_regdomain *regdom = NULL;
5443 struct cfg80211_registered_device *rdev;
5444 struct wiphy *wiphy = NULL;
5445 struct sk_buff *msg;
5448 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5452 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5453 NL80211_CMD_GET_REG);
5457 if (info->attrs[NL80211_ATTR_WIPHY]) {
5460 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5463 return PTR_ERR(rdev);
5466 wiphy = &rdev->wiphy;
5467 self_managed = wiphy->regulatory_flags &
5468 REGULATORY_WIPHY_SELF_MANAGED;
5469 regdom = get_wiphy_regdom(wiphy);
5471 /* a self-managed-reg device must have a private regdom */
5472 if (WARN_ON(!regdom && self_managed)) {
5478 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5479 goto nla_put_failure;
5482 if (!wiphy && reg_last_request_cell_base() &&
5483 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5484 NL80211_USER_REG_HINT_CELL_BASE))
5485 goto nla_put_failure;
5490 regdom = rcu_dereference(cfg80211_regdomain);
5492 if (nl80211_put_regdom(regdom, msg))
5493 goto nla_put_failure_rcu;
5497 genlmsg_end(msg, hdr);
5498 return genlmsg_reply(msg, info);
5500 nla_put_failure_rcu:
5503 genlmsg_cancel(msg, hdr);
5509 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5510 u32 seq, int flags, struct wiphy *wiphy,
5511 const struct ieee80211_regdomain *regdom)
5513 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5514 NL80211_CMD_GET_REG);
5519 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5521 if (nl80211_put_regdom(regdom, msg))
5522 goto nla_put_failure;
5524 if (!wiphy && reg_last_request_cell_base() &&
5525 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5526 NL80211_USER_REG_HINT_CELL_BASE))
5527 goto nla_put_failure;
5530 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5531 goto nla_put_failure;
5533 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5534 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5535 goto nla_put_failure;
5537 genlmsg_end(msg, hdr);
5541 genlmsg_cancel(msg, hdr);
5545 static int nl80211_get_reg_dump(struct sk_buff *skb,
5546 struct netlink_callback *cb)
5548 const struct ieee80211_regdomain *regdom = NULL;
5549 struct cfg80211_registered_device *rdev;
5550 int err, reg_idx, start = cb->args[2];
5554 if (cfg80211_regdomain && start == 0) {
5555 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5557 rtnl_dereference(cfg80211_regdomain));
5562 /* the global regdom is idx 0 */
5564 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5565 regdom = get_wiphy_regdom(&rdev->wiphy);
5569 if (++reg_idx <= start)
5572 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5573 NLM_F_MULTI, &rdev->wiphy, regdom);
5580 cb->args[2] = reg_idx;
5587 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
5588 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5589 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5590 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5591 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5592 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5593 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5594 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5595 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5598 static int parse_reg_rule(struct nlattr *tb[],
5599 struct ieee80211_reg_rule *reg_rule)
5601 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
5602 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
5604 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5606 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5608 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5610 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5612 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5615 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5617 freq_range->start_freq_khz =
5618 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5619 freq_range->end_freq_khz =
5620 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5621 freq_range->max_bandwidth_khz =
5622 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5624 power_rule->max_eirp =
5625 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5627 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5628 power_rule->max_antenna_gain =
5629 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5631 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5632 reg_rule->dfs_cac_ms =
5633 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5638 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5640 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5641 struct nlattr *nl_reg_rule;
5643 int rem_reg_rules, r;
5644 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5645 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5646 struct ieee80211_regdomain *rd;
5648 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5651 if (!info->attrs[NL80211_ATTR_REG_RULES])
5654 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5656 if (info->attrs[NL80211_ATTR_DFS_REGION])
5657 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5659 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5662 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5666 if (!reg_is_valid_request(alpha2))
5669 size_of_regd = sizeof(struct ieee80211_regdomain) +
5670 num_rules * sizeof(struct ieee80211_reg_rule);
5672 rd = kzalloc(size_of_regd, GFP_KERNEL);
5676 rd->n_reg_rules = num_rules;
5677 rd->alpha2[0] = alpha2[0];
5678 rd->alpha2[1] = alpha2[1];
5681 * Disable DFS master mode if the DFS region was
5682 * not supported or known on this kernel.
5684 if (reg_supported_dfs_region(dfs_region))
5685 rd->dfs_region = dfs_region;
5687 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5689 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5690 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5694 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5700 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5706 r = set_regdom(rd, REGD_SOURCE_CRDA);
5707 /* set_regdom took ownership */
5714 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
5716 static int validate_scan_freqs(struct nlattr *freqs)
5718 struct nlattr *attr1, *attr2;
5719 int n_channels = 0, tmp1, tmp2;
5721 nla_for_each_nested(attr1, freqs, tmp1) {
5724 * Some hardware has a limited channel list for
5725 * scanning, and it is pretty much nonsensical
5726 * to scan for a channel twice, so disallow that
5727 * and don't require drivers to check that the
5728 * channel list they get isn't longer than what
5729 * they can scan, as long as they can scan all
5730 * the channels they registered at once.
5732 nla_for_each_nested(attr2, freqs, tmp2)
5733 if (attr1 != attr2 &&
5734 nla_get_u32(attr1) == nla_get_u32(attr2))
5741 static int nl80211_parse_random_mac(struct nlattr **attrs,
5742 u8 *mac_addr, u8 *mac_addr_mask)
5746 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5747 eth_zero_addr(mac_addr);
5748 eth_zero_addr(mac_addr_mask);
5750 mac_addr_mask[0] = 0x3;
5755 /* need both or none */
5756 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5759 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5760 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5762 /* don't allow or configure an mcast address */
5763 if (!is_multicast_ether_addr(mac_addr_mask) ||
5764 is_multicast_ether_addr(mac_addr))
5768 * allow users to pass a MAC address that has bits set outside
5769 * of the mask, but don't bother drivers with having to deal
5772 for (i = 0; i < ETH_ALEN; i++)
5773 mac_addr[i] &= mac_addr_mask[i];
5778 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5781 struct wireless_dev *wdev = info->user_ptr[1];
5782 struct cfg80211_scan_request *request;
5783 struct nlattr *attr;
5784 struct wiphy *wiphy;
5785 int err, tmp, n_ssids = 0, n_channels, i;
5788 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5791 wiphy = &rdev->wiphy;
5793 if (!rdev->ops->scan)
5796 if (rdev->scan_req || rdev->scan_msg) {
5801 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5802 n_channels = validate_scan_freqs(
5803 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5809 n_channels = ieee80211_get_num_supported_channels(wiphy);
5812 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5813 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5816 if (n_ssids > wiphy->max_scan_ssids) {
5821 if (info->attrs[NL80211_ATTR_IE])
5822 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5826 if (ie_len > wiphy->max_scan_ie_len) {
5831 request = kzalloc(sizeof(*request)
5832 + sizeof(*request->ssids) * n_ssids
5833 + sizeof(*request->channels) * n_channels
5834 + ie_len, GFP_KERNEL);
5841 request->ssids = (void *)&request->channels[n_channels];
5842 request->n_ssids = n_ssids;
5845 request->ie = (void *)(request->ssids + n_ssids);
5847 request->ie = (void *)(request->channels + n_channels);
5851 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5852 /* user specified, bail out if channel not found */
5853 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5854 struct ieee80211_channel *chan;
5856 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5863 /* ignore disabled channels */
5864 if (chan->flags & IEEE80211_CHAN_DISABLED)
5867 request->channels[i] = chan;
5871 enum ieee80211_band band;
5874 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5876 if (!wiphy->bands[band])
5878 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5879 struct ieee80211_channel *chan;
5881 chan = &wiphy->bands[band]->channels[j];
5883 if (chan->flags & IEEE80211_CHAN_DISABLED)
5886 request->channels[i] = chan;
5897 request->n_channels = i;
5901 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5902 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5906 request->ssids[i].ssid_len = nla_len(attr);
5907 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5912 if (info->attrs[NL80211_ATTR_IE]) {
5913 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5914 memcpy((void *)request->ie,
5915 nla_data(info->attrs[NL80211_ATTR_IE]),
5919 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5920 if (wiphy->bands[i])
5922 (1 << wiphy->bands[i]->n_bitrates) - 1;
5924 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5925 nla_for_each_nested(attr,
5926 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5928 enum ieee80211_band band = nla_type(attr);
5930 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5935 if (!wiphy->bands[band])
5938 err = ieee80211_get_ratemask(wiphy->bands[band],
5941 &request->rates[band]);
5947 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5948 request->flags = nla_get_u32(
5949 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5950 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5951 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5956 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5957 if (!(wiphy->features &
5958 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5963 if (wdev->current_bss) {
5968 err = nl80211_parse_random_mac(info->attrs,
5970 request->mac_addr_mask);
5977 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5979 request->wdev = wdev;
5980 request->wiphy = &rdev->wiphy;
5981 request->scan_start = jiffies;
5983 rdev->scan_req = request;
5984 err = rdev_scan(rdev, request);
5987 nl80211_send_scan_start(rdev, wdev);
5989 dev_hold(wdev->netdev);
5992 rdev->scan_req = NULL;
6001 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6002 struct cfg80211_sched_scan_request *request,
6003 struct nlattr **attrs)
6005 int tmp, err, i = 0;
6006 struct nlattr *attr;
6008 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6012 * If scan plans are not specified,
6013 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6014 * case one scan plan will be set with the specified scan
6015 * interval and infinite number of iterations.
6017 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6020 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6024 request->scan_plans[0].interval =
6025 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6026 if (!request->scan_plans[0].interval)
6029 if (request->scan_plans[0].interval >
6030 wiphy->max_sched_scan_plan_interval)
6031 request->scan_plans[0].interval =
6032 wiphy->max_sched_scan_plan_interval;
6037 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6038 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6040 if (WARN_ON(i >= n_plans))
6043 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6044 nla_data(attr), nla_len(attr),
6045 nl80211_plan_policy);
6049 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6052 request->scan_plans[i].interval =
6053 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6054 if (!request->scan_plans[i].interval ||
6055 request->scan_plans[i].interval >
6056 wiphy->max_sched_scan_plan_interval)
6059 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6060 request->scan_plans[i].iterations =
6061 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6062 if (!request->scan_plans[i].iterations ||
6063 (request->scan_plans[i].iterations >
6064 wiphy->max_sched_scan_plan_iterations))
6066 } else if (i < n_plans - 1) {
6068 * All scan plans but the last one must specify
6069 * a finite number of iterations
6078 * The last scan plan must not specify the number of
6079 * iterations, it is supposed to run infinitely
6081 if (request->scan_plans[n_plans - 1].iterations)
6087 static struct cfg80211_sched_scan_request *
6088 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6089 struct nlattr **attrs)
6091 struct cfg80211_sched_scan_request *request;
6092 struct nlattr *attr;
6093 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6094 enum ieee80211_band band;
6096 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6097 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6099 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6100 return ERR_PTR(-EINVAL);
6102 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6103 n_channels = validate_scan_freqs(
6104 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6106 return ERR_PTR(-EINVAL);
6108 n_channels = ieee80211_get_num_supported_channels(wiphy);
6111 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6112 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6116 if (n_ssids > wiphy->max_sched_scan_ssids)
6117 return ERR_PTR(-EINVAL);
6120 * First, count the number of 'real' matchsets. Due to an issue with
6121 * the old implementation, matchsets containing only the RSSI attribute
6122 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6123 * RSSI for all matchsets, rather than their own matchset for reporting
6124 * all APs with a strong RSSI. This is needed to be compatible with
6125 * older userspace that treated a matchset with only the RSSI as the
6126 * global RSSI for all other matchsets - if there are other matchsets.
6128 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6129 nla_for_each_nested(attr,
6130 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6132 struct nlattr *rssi;
6134 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6135 nla_data(attr), nla_len(attr),
6136 nl80211_match_policy);
6138 return ERR_PTR(err);
6139 /* add other standalone attributes here */
6140 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6144 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6146 default_match_rssi = nla_get_s32(rssi);
6150 /* However, if there's no other matchset, add the RSSI one */
6151 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6154 if (n_match_sets > wiphy->max_match_sets)
6155 return ERR_PTR(-EINVAL);
6157 if (attrs[NL80211_ATTR_IE])
6158 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6162 if (ie_len > wiphy->max_sched_scan_ie_len)
6163 return ERR_PTR(-EINVAL);
6165 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6167 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6168 * each scan plan already specifies its own interval
6170 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6171 return ERR_PTR(-EINVAL);
6173 nla_for_each_nested(attr,
6174 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6178 * The scan interval attribute is kept for backward
6179 * compatibility. If no scan plans are specified and sched scan
6180 * interval is specified, one scan plan will be set with this
6181 * scan interval and infinite number of iterations.
6183 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6184 return ERR_PTR(-EINVAL);
6189 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6190 return ERR_PTR(-EINVAL);
6192 request = kzalloc(sizeof(*request)
6193 + sizeof(*request->ssids) * n_ssids
6194 + sizeof(*request->match_sets) * n_match_sets
6195 + sizeof(*request->scan_plans) * n_plans
6196 + sizeof(*request->channels) * n_channels
6197 + ie_len, GFP_KERNEL);
6199 return ERR_PTR(-ENOMEM);
6202 request->ssids = (void *)&request->channels[n_channels];
6203 request->n_ssids = n_ssids;
6206 request->ie = (void *)(request->ssids + n_ssids);
6208 request->ie = (void *)(request->channels + n_channels);
6213 request->match_sets = (void *)(request->ie + ie_len);
6215 request->match_sets =
6216 (void *)(request->ssids + n_ssids);
6218 request->match_sets =
6219 (void *)(request->channels + n_channels);
6221 request->n_match_sets = n_match_sets;
6224 request->scan_plans = (void *)(request->match_sets +
6226 else if (request->ie)
6227 request->scan_plans = (void *)(request->ie + ie_len);
6229 request->scan_plans = (void *)(request->ssids + n_ssids);
6231 request->scan_plans = (void *)(request->channels + n_channels);
6233 request->n_scan_plans = n_plans;
6236 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6237 /* user specified, bail out if channel not found */
6238 nla_for_each_nested(attr,
6239 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6241 struct ieee80211_channel *chan;
6243 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6250 /* ignore disabled channels */
6251 if (chan->flags & IEEE80211_CHAN_DISABLED)
6254 request->channels[i] = chan;
6259 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6261 if (!wiphy->bands[band])
6263 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6264 struct ieee80211_channel *chan;
6266 chan = &wiphy->bands[band]->channels[j];
6268 if (chan->flags & IEEE80211_CHAN_DISABLED)
6271 request->channels[i] = chan;
6282 request->n_channels = i;
6286 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6288 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6292 request->ssids[i].ssid_len = nla_len(attr);
6293 memcpy(request->ssids[i].ssid, nla_data(attr),
6300 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6301 nla_for_each_nested(attr,
6302 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6304 struct nlattr *ssid, *rssi;
6306 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6307 nla_data(attr), nla_len(attr),
6308 nl80211_match_policy);
6311 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6313 if (WARN_ON(i >= n_match_sets)) {
6314 /* this indicates a programming error,
6315 * the loop above should have verified
6322 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6326 memcpy(request->match_sets[i].ssid.ssid,
6327 nla_data(ssid), nla_len(ssid));
6328 request->match_sets[i].ssid.ssid_len =
6330 /* special attribute - old implemenation w/a */
6331 request->match_sets[i].rssi_thold =
6333 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6335 request->match_sets[i].rssi_thold =
6341 /* there was no other matchset, so the RSSI one is alone */
6342 if (i == 0 && n_match_sets)
6343 request->match_sets[0].rssi_thold = default_match_rssi;
6345 request->min_rssi_thold = INT_MAX;
6346 for (i = 0; i < n_match_sets; i++)
6347 request->min_rssi_thold =
6348 min(request->match_sets[i].rssi_thold,
6349 request->min_rssi_thold);
6351 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6355 request->ie_len = ie_len;
6356 memcpy((void *)request->ie,
6357 nla_data(attrs[NL80211_ATTR_IE]),
6361 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6362 request->flags = nla_get_u32(
6363 attrs[NL80211_ATTR_SCAN_FLAGS]);
6364 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6365 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6370 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6371 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6373 if (!wdev) /* must be net-detect */
6374 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6376 if (!(wiphy->features & flg)) {
6381 if (wdev && wdev->current_bss) {
6386 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6387 request->mac_addr_mask);
6393 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6395 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6397 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6401 request->scan_start = jiffies;
6407 return ERR_PTR(err);
6410 static int nl80211_start_sched_scan(struct sk_buff *skb,
6411 struct genl_info *info)
6413 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6414 struct net_device *dev = info->user_ptr[1];
6415 struct wireless_dev *wdev = dev->ieee80211_ptr;
6416 struct cfg80211_sched_scan_request *sched_scan_req;
6419 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6420 !rdev->ops->sched_scan_start)
6423 if (rdev->sched_scan_req)
6424 return -EINPROGRESS;
6426 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6429 err = PTR_ERR_OR_ZERO(sched_scan_req);
6433 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6437 sched_scan_req->dev = dev;
6438 sched_scan_req->wiphy = &rdev->wiphy;
6440 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6441 sched_scan_req->owner_nlportid = info->snd_portid;
6443 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6445 nl80211_send_sched_scan(rdev, dev,
6446 NL80211_CMD_START_SCHED_SCAN);
6450 kfree(sched_scan_req);
6455 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6456 struct genl_info *info)
6458 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6460 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6461 !rdev->ops->sched_scan_stop)
6464 return __cfg80211_stop_sched_scan(rdev, false);
6467 static int nl80211_start_radar_detection(struct sk_buff *skb,
6468 struct genl_info *info)
6470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6471 struct net_device *dev = info->user_ptr[1];
6472 struct wireless_dev *wdev = dev->ieee80211_ptr;
6473 struct cfg80211_chan_def chandef;
6474 enum nl80211_dfs_regions dfs_region;
6475 unsigned int cac_time_ms;
6478 dfs_region = reg_get_dfs_region(wdev->wiphy);
6479 if (dfs_region == NL80211_DFS_UNSET)
6482 err = nl80211_parse_chandef(rdev, info, &chandef);
6486 if (netif_carrier_ok(dev))
6489 if (wdev->cac_started)
6492 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6500 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6503 if (!rdev->ops->start_radar_detection)
6506 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6507 if (WARN_ON(!cac_time_ms))
6508 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6510 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6513 wdev->chandef = chandef;
6514 wdev->cac_started = true;
6515 wdev->cac_start_time = jiffies;
6516 wdev->cac_time_ms = cac_time_ms;
6521 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6524 struct net_device *dev = info->user_ptr[1];
6525 struct wireless_dev *wdev = dev->ieee80211_ptr;
6526 struct cfg80211_csa_settings params;
6527 /* csa_attrs is defined static to avoid waste of stack size - this
6528 * function is called under RTNL lock, so this should not be a problem.
6530 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6532 bool need_new_beacon = false;
6536 if (!rdev->ops->channel_switch ||
6537 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6540 switch (dev->ieee80211_ptr->iftype) {
6541 case NL80211_IFTYPE_AP:
6542 case NL80211_IFTYPE_P2P_GO:
6543 need_new_beacon = true;
6545 /* useless if AP is not running */
6546 if (!wdev->beacon_interval)
6549 case NL80211_IFTYPE_ADHOC:
6550 if (!wdev->ssid_len)
6553 case NL80211_IFTYPE_MESH_POINT:
6554 if (!wdev->mesh_id_len)
6561 memset(¶ms, 0, sizeof(params));
6563 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6564 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6567 /* only important for AP, IBSS and mesh create IEs internally */
6568 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6571 /* Even though the attribute is u32, the specification says
6572 * u8, so let's make sure we don't overflow.
6574 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6578 params.count = cs_count;
6580 if (!need_new_beacon)
6583 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6587 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6588 info->attrs[NL80211_ATTR_CSA_IES],
6593 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6597 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6600 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6601 if (!len || (len % sizeof(u16)))
6604 params.n_counter_offsets_beacon = len / sizeof(u16);
6605 if (rdev->wiphy.max_num_csa_counters &&
6606 (params.n_counter_offsets_beacon >
6607 rdev->wiphy.max_num_csa_counters))
6610 params.counter_offsets_beacon =
6611 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6613 /* sanity checks - counters should fit and be the same */
6614 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6615 u16 offset = params.counter_offsets_beacon[i];
6617 if (offset >= params.beacon_csa.tail_len)
6620 if (params.beacon_csa.tail[offset] != params.count)
6624 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6625 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6626 if (!len || (len % sizeof(u16)))
6629 params.n_counter_offsets_presp = len / sizeof(u16);
6630 if (rdev->wiphy.max_num_csa_counters &&
6631 (params.n_counter_offsets_beacon >
6632 rdev->wiphy.max_num_csa_counters))
6635 params.counter_offsets_presp =
6636 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6638 /* sanity checks - counters should fit and be the same */
6639 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6640 u16 offset = params.counter_offsets_presp[i];
6642 if (offset >= params.beacon_csa.probe_resp_len)
6645 if (params.beacon_csa.probe_resp[offset] !=
6652 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6656 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6660 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6667 params.radar_required = true;
6669 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6670 params.block_tx = true;
6673 err = rdev_channel_switch(rdev, dev, ¶ms);
6679 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6681 struct cfg80211_registered_device *rdev,
6682 struct wireless_dev *wdev,
6683 struct cfg80211_internal_bss *intbss)
6685 struct cfg80211_bss *res = &intbss->pub;
6686 const struct cfg80211_bss_ies *ies;
6690 ASSERT_WDEV_LOCK(wdev);
6692 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6693 NL80211_CMD_NEW_SCAN_RESULTS);
6697 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6699 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6700 goto nla_put_failure;
6702 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6703 goto nla_put_failure;
6704 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6705 goto nla_put_failure;
6707 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6709 goto nla_put_failure;
6710 if ((!is_zero_ether_addr(res->bssid) &&
6711 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6712 goto nla_put_failure;
6715 /* indicate whether we have probe response data or not */
6716 if (rcu_access_pointer(res->proberesp_ies) &&
6717 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6718 goto fail_unlock_rcu;
6720 /* this pointer prefers to be pointed to probe response data
6721 * but is always valid
6723 ies = rcu_dereference(res->ies);
6725 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6726 goto fail_unlock_rcu;
6727 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6728 ies->len, ies->data))
6729 goto fail_unlock_rcu;
6732 /* and this pointer is always (unless driver didn't know) beacon data */
6733 ies = rcu_dereference(res->beacon_ies);
6734 if (ies && ies->from_beacon) {
6735 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6736 goto fail_unlock_rcu;
6737 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6738 ies->len, ies->data))
6739 goto fail_unlock_rcu;
6743 if (res->beacon_interval &&
6744 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6745 goto nla_put_failure;
6746 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6747 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6748 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6749 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6750 jiffies_to_msecs(jiffies - intbss->ts)))
6751 goto nla_put_failure;
6753 if (intbss->ts_boottime &&
6754 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6755 intbss->ts_boottime))
6756 goto nla_put_failure;
6758 switch (rdev->wiphy.signal_type) {
6759 case CFG80211_SIGNAL_TYPE_MBM:
6760 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6761 goto nla_put_failure;
6763 case CFG80211_SIGNAL_TYPE_UNSPEC:
6764 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6765 goto nla_put_failure;
6771 switch (wdev->iftype) {
6772 case NL80211_IFTYPE_P2P_CLIENT:
6773 case NL80211_IFTYPE_STATION:
6774 if (intbss == wdev->current_bss &&
6775 nla_put_u32(msg, NL80211_BSS_STATUS,
6776 NL80211_BSS_STATUS_ASSOCIATED))
6777 goto nla_put_failure;
6779 case NL80211_IFTYPE_ADHOC:
6780 if (intbss == wdev->current_bss &&
6781 nla_put_u32(msg, NL80211_BSS_STATUS,
6782 NL80211_BSS_STATUS_IBSS_JOINED))
6783 goto nla_put_failure;
6789 nla_nest_end(msg, bss);
6791 genlmsg_end(msg, hdr);
6797 genlmsg_cancel(msg, hdr);
6801 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6803 struct cfg80211_registered_device *rdev;
6804 struct cfg80211_internal_bss *scan;
6805 struct wireless_dev *wdev;
6806 int start = cb->args[2], idx = 0;
6809 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6814 spin_lock_bh(&rdev->bss_lock);
6815 cfg80211_bss_expire(rdev);
6817 cb->seq = rdev->bss_generation;
6819 list_for_each_entry(scan, &rdev->bss_list, list) {
6822 if (nl80211_send_bss(skb, cb,
6823 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6824 rdev, wdev, scan) < 0) {
6830 spin_unlock_bh(&rdev->bss_lock);
6834 nl80211_finish_wdev_dump(rdev);
6839 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6840 int flags, struct net_device *dev,
6841 bool allow_radio_stats,
6842 struct survey_info *survey)
6845 struct nlattr *infoattr;
6847 /* skip radio stats if userspace didn't request them */
6848 if (!survey->channel && !allow_radio_stats)
6851 hdr = nl80211hdr_put(msg, portid, seq, flags,
6852 NL80211_CMD_NEW_SURVEY_RESULTS);
6856 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6857 goto nla_put_failure;
6859 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6861 goto nla_put_failure;
6863 if (survey->channel &&
6864 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6865 survey->channel->center_freq))
6866 goto nla_put_failure;
6868 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6869 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6870 goto nla_put_failure;
6871 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6872 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6873 goto nla_put_failure;
6874 if ((survey->filled & SURVEY_INFO_TIME) &&
6875 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6877 goto nla_put_failure;
6878 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6879 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6881 goto nla_put_failure;
6882 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6883 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6884 survey->time_ext_busy))
6885 goto nla_put_failure;
6886 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6887 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6889 goto nla_put_failure;
6890 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6891 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6893 goto nla_put_failure;
6894 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6895 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6897 goto nla_put_failure;
6899 nla_nest_end(msg, infoattr);
6901 genlmsg_end(msg, hdr);
6905 genlmsg_cancel(msg, hdr);
6909 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
6911 struct survey_info survey;
6912 struct cfg80211_registered_device *rdev;
6913 struct wireless_dev *wdev;
6914 int survey_idx = cb->args[2];
6918 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6922 /* prepare_wdev_dump parsed the attributes */
6923 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6925 if (!wdev->netdev) {
6930 if (!rdev->ops->dump_survey) {
6936 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6942 /* don't send disabled channels, but do send non-channel data */
6943 if (survey.channel &&
6944 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
6949 if (nl80211_send_survey(skb,
6950 NETLINK_CB(cb->skb).portid,
6951 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6952 wdev->netdev, radio_stats, &survey) < 0)
6958 cb->args[2] = survey_idx;
6961 nl80211_finish_wdev_dump(rdev);
6965 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6967 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6968 NL80211_WPA_VERSION_2));
6971 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6973 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6974 struct net_device *dev = info->user_ptr[1];
6975 struct ieee80211_channel *chan;
6976 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6977 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6978 enum nl80211_auth_type auth_type;
6979 struct key_parse key;
6980 bool local_state_change;
6982 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6985 if (!info->attrs[NL80211_ATTR_MAC])
6988 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6991 if (!info->attrs[NL80211_ATTR_SSID])
6994 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6997 err = nl80211_parse_key(info, &key);
7002 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7004 if (!key.p.key || !key.p.key_len)
7006 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7007 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7008 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7009 key.p.key_len != WLAN_KEY_LEN_WEP104))
7021 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7022 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7031 if (!rdev->ops->auth)
7034 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7035 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7038 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7039 chan = nl80211_get_valid_chan(&rdev->wiphy,
7040 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7044 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7045 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7047 if (info->attrs[NL80211_ATTR_IE]) {
7048 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7049 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7052 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7053 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7056 if (auth_type == NL80211_AUTHTYPE_SAE &&
7057 !info->attrs[NL80211_ATTR_SAE_DATA])
7060 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7061 if (auth_type != NL80211_AUTHTYPE_SAE)
7063 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7064 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7065 /* need to include at least Auth Transaction and Status Code */
7066 if (sae_data_len < 4)
7070 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7073 * Since we no longer track auth state, ignore
7074 * requests to only change local state.
7076 if (local_state_change)
7079 wdev_lock(dev->ieee80211_ptr);
7080 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7081 ssid, ssid_len, ie, ie_len,
7082 key.p.key, key.p.key_len, key.idx,
7083 sae_data, sae_data_len);
7084 wdev_unlock(dev->ieee80211_ptr);
7088 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7089 struct genl_info *info,
7090 struct cfg80211_crypto_settings *settings,
7093 memset(settings, 0, sizeof(*settings));
7095 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7097 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7099 proto = nla_get_u16(
7100 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7101 settings->control_port_ethertype = cpu_to_be16(proto);
7102 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7105 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7106 settings->control_port_no_encrypt = true;
7108 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7110 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7114 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7115 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7116 settings->n_ciphers_pairwise = len / sizeof(u32);
7118 if (len % sizeof(u32))
7121 if (settings->n_ciphers_pairwise > cipher_limit)
7124 memcpy(settings->ciphers_pairwise, data, len);
7126 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7127 if (!cfg80211_supported_cipher_suite(
7129 settings->ciphers_pairwise[i]))
7133 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7134 settings->cipher_group =
7135 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7136 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7137 settings->cipher_group))
7141 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7142 settings->wpa_versions =
7143 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7144 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7148 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7152 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7153 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7154 settings->n_akm_suites = len / sizeof(u32);
7156 if (len % sizeof(u32))
7159 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7162 memcpy(settings->akm_suites, data, len);
7168 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7170 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7171 struct net_device *dev = info->user_ptr[1];
7172 struct ieee80211_channel *chan;
7173 struct cfg80211_assoc_request req = {};
7174 const u8 *bssid, *ssid;
7175 int err, ssid_len = 0;
7177 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7180 if (!info->attrs[NL80211_ATTR_MAC] ||
7181 !info->attrs[NL80211_ATTR_SSID] ||
7182 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7185 if (!rdev->ops->assoc)
7188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7192 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7194 chan = nl80211_get_valid_chan(&rdev->wiphy,
7195 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7199 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7200 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7202 if (info->attrs[NL80211_ATTR_IE]) {
7203 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7204 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7207 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7208 enum nl80211_mfp mfp =
7209 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7210 if (mfp == NL80211_MFP_REQUIRED)
7212 else if (mfp != NL80211_MFP_NO)
7216 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7217 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7219 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7220 req.flags |= ASSOC_REQ_DISABLE_HT;
7222 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7223 memcpy(&req.ht_capa_mask,
7224 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7225 sizeof(req.ht_capa_mask));
7227 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7228 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7230 memcpy(&req.ht_capa,
7231 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7232 sizeof(req.ht_capa));
7235 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7236 req.flags |= ASSOC_REQ_DISABLE_VHT;
7238 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7239 memcpy(&req.vht_capa_mask,
7240 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7241 sizeof(req.vht_capa_mask));
7243 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7244 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7246 memcpy(&req.vht_capa,
7247 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7248 sizeof(req.vht_capa));
7251 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7252 if (!(rdev->wiphy.features &
7253 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7254 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7256 req.flags |= ASSOC_REQ_USE_RRM;
7259 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7261 wdev_lock(dev->ieee80211_ptr);
7262 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7263 ssid, ssid_len, &req);
7264 wdev_unlock(dev->ieee80211_ptr);
7270 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7272 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7273 struct net_device *dev = info->user_ptr[1];
7274 const u8 *ie = NULL, *bssid;
7275 int ie_len = 0, err;
7277 bool local_state_change;
7279 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7282 if (!info->attrs[NL80211_ATTR_MAC])
7285 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7288 if (!rdev->ops->deauth)
7291 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7292 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7295 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7297 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7298 if (reason_code == 0) {
7299 /* Reason Code 0 is reserved */
7303 if (info->attrs[NL80211_ATTR_IE]) {
7304 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7305 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7308 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7310 wdev_lock(dev->ieee80211_ptr);
7311 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7312 local_state_change);
7313 wdev_unlock(dev->ieee80211_ptr);
7317 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7319 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7320 struct net_device *dev = info->user_ptr[1];
7321 const u8 *ie = NULL, *bssid;
7322 int ie_len = 0, err;
7324 bool local_state_change;
7326 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7329 if (!info->attrs[NL80211_ATTR_MAC])
7332 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7335 if (!rdev->ops->disassoc)
7338 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7339 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7342 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7344 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7345 if (reason_code == 0) {
7346 /* Reason Code 0 is reserved */
7350 if (info->attrs[NL80211_ATTR_IE]) {
7351 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7352 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7355 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7357 wdev_lock(dev->ieee80211_ptr);
7358 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7359 local_state_change);
7360 wdev_unlock(dev->ieee80211_ptr);
7365 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7366 int mcast_rate[IEEE80211_NUM_BANDS],
7369 struct wiphy *wiphy = &rdev->wiphy;
7373 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7374 struct ieee80211_supported_band *sband;
7376 sband = wiphy->bands[band];
7380 for (i = 0; i < sband->n_bitrates; i++) {
7381 if (sband->bitrates[i].bitrate == rateval) {
7382 mcast_rate[band] = i + 1;
7392 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7394 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7395 struct net_device *dev = info->user_ptr[1];
7396 struct cfg80211_ibss_params ibss;
7397 struct wiphy *wiphy;
7398 struct cfg80211_cached_keys *connkeys = NULL;
7401 memset(&ibss, 0, sizeof(ibss));
7403 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7406 if (!info->attrs[NL80211_ATTR_SSID] ||
7407 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7410 ibss.beacon_interval = 100;
7412 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7413 ibss.beacon_interval =
7414 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7415 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7419 if (!rdev->ops->join_ibss)
7422 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7425 wiphy = &rdev->wiphy;
7427 if (info->attrs[NL80211_ATTR_MAC]) {
7428 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7430 if (!is_valid_ether_addr(ibss.bssid))
7433 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7434 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7436 if (info->attrs[NL80211_ATTR_IE]) {
7437 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7438 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7441 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7445 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7446 NL80211_IFTYPE_ADHOC))
7449 switch (ibss.chandef.width) {
7450 case NL80211_CHAN_WIDTH_5:
7451 case NL80211_CHAN_WIDTH_10:
7452 case NL80211_CHAN_WIDTH_20_NOHT:
7454 case NL80211_CHAN_WIDTH_20:
7455 case NL80211_CHAN_WIDTH_40:
7456 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7459 case NL80211_CHAN_WIDTH_80:
7460 case NL80211_CHAN_WIDTH_80P80:
7461 case NL80211_CHAN_WIDTH_160:
7462 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7464 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7465 NL80211_EXT_FEATURE_VHT_IBSS))
7472 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7473 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7475 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7477 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7479 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7480 struct ieee80211_supported_band *sband =
7481 wiphy->bands[ibss.chandef.chan->band];
7483 err = ieee80211_get_ratemask(sband, rates, n_rates,
7489 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7490 memcpy(&ibss.ht_capa_mask,
7491 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7492 sizeof(ibss.ht_capa_mask));
7494 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7495 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7497 memcpy(&ibss.ht_capa,
7498 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7499 sizeof(ibss.ht_capa));
7502 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7503 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7504 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7507 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7510 connkeys = nl80211_parse_connkeys(rdev,
7511 info->attrs[NL80211_ATTR_KEYS],
7513 if (IS_ERR(connkeys))
7514 return PTR_ERR(connkeys);
7516 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7524 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7526 ibss.userspace_handles_dfs =
7527 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7529 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7535 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7537 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7538 struct net_device *dev = info->user_ptr[1];
7540 if (!rdev->ops->leave_ibss)
7543 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7546 return cfg80211_leave_ibss(rdev, dev, false);
7549 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7551 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7552 struct net_device *dev = info->user_ptr[1];
7553 int mcast_rate[IEEE80211_NUM_BANDS];
7557 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7558 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7559 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7562 if (!rdev->ops->set_mcast_rate)
7565 memset(mcast_rate, 0, sizeof(mcast_rate));
7567 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7570 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7571 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7574 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7579 static struct sk_buff *
7580 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7581 struct wireless_dev *wdev, int approxlen,
7582 u32 portid, u32 seq, enum nl80211_commands cmd,
7583 enum nl80211_attrs attr,
7584 const struct nl80211_vendor_cmd_info *info,
7587 struct sk_buff *skb;
7589 struct nlattr *data;
7591 skb = nlmsg_new(approxlen + 100, gfp);
7595 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7601 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7602 goto nla_put_failure;
7605 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7607 goto nla_put_failure;
7608 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7610 goto nla_put_failure;
7614 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7616 goto nla_put_failure;
7618 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7619 wdev->netdev->ifindex))
7620 goto nla_put_failure;
7623 data = nla_nest_start(skb, attr);
7625 ((void **)skb->cb)[0] = rdev;
7626 ((void **)skb->cb)[1] = hdr;
7627 ((void **)skb->cb)[2] = data;
7636 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7637 struct wireless_dev *wdev,
7638 enum nl80211_commands cmd,
7639 enum nl80211_attrs attr,
7640 int vendor_event_idx,
7641 int approxlen, gfp_t gfp)
7643 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7644 const struct nl80211_vendor_cmd_info *info;
7647 case NL80211_CMD_TESTMODE:
7648 if (WARN_ON(vendor_event_idx != -1))
7652 case NL80211_CMD_VENDOR:
7653 if (WARN_ON(vendor_event_idx < 0 ||
7654 vendor_event_idx >= wiphy->n_vendor_events))
7656 info = &wiphy->vendor_events[vendor_event_idx];
7663 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
7664 cmd, attr, info, gfp);
7666 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7668 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7670 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7671 void *hdr = ((void **)skb->cb)[1];
7672 struct nlattr *data = ((void **)skb->cb)[2];
7673 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7675 /* clear CB data for netlink core to own from now on */
7676 memset(skb->cb, 0, sizeof(skb->cb));
7678 nla_nest_end(skb, data);
7679 genlmsg_end(skb, hdr);
7681 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7682 mcgrp = NL80211_MCGRP_VENDOR;
7684 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7687 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7689 #ifdef CONFIG_NL80211_TESTMODE
7690 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7692 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7693 struct wireless_dev *wdev =
7694 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7697 if (!rdev->ops->testmode_cmd)
7701 err = PTR_ERR(wdev);
7705 } else if (wdev->wiphy != &rdev->wiphy) {
7709 if (!info->attrs[NL80211_ATTR_TESTDATA])
7712 rdev->cur_cmd_info = info;
7713 err = rdev_testmode_cmd(rdev, wdev,
7714 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7715 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7716 rdev->cur_cmd_info = NULL;
7721 static int nl80211_testmode_dump(struct sk_buff *skb,
7722 struct netlink_callback *cb)
7724 struct cfg80211_registered_device *rdev;
7734 * 0 is a valid index, but not valid for args[0],
7735 * so we need to offset by 1.
7737 phy_idx = cb->args[0] - 1;
7739 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7740 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7745 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7746 nl80211_fam.attrbuf);
7748 err = PTR_ERR(rdev);
7751 phy_idx = rdev->wiphy_idx;
7754 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7756 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7760 data = nla_data((void *)cb->args[1]);
7761 data_len = nla_len((void *)cb->args[1]);
7764 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7770 if (!rdev->ops->testmode_dump) {
7776 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7777 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7778 NL80211_CMD_TESTMODE);
7779 struct nlattr *tmdata;
7784 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7785 genlmsg_cancel(skb, hdr);
7789 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7791 genlmsg_cancel(skb, hdr);
7794 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7795 nla_nest_end(skb, tmdata);
7797 if (err == -ENOBUFS || err == -ENOENT) {
7798 genlmsg_cancel(skb, hdr);
7801 genlmsg_cancel(skb, hdr);
7805 genlmsg_end(skb, hdr);
7810 cb->args[0] = phy_idx + 1;
7817 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7820 struct net_device *dev = info->user_ptr[1];
7821 struct cfg80211_connect_params connect;
7822 struct wiphy *wiphy;
7823 struct cfg80211_cached_keys *connkeys = NULL;
7826 memset(&connect, 0, sizeof(connect));
7828 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7831 if (!info->attrs[NL80211_ATTR_SSID] ||
7832 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7835 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7837 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7838 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7839 NL80211_CMD_CONNECT))
7842 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7844 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7846 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7847 NL80211_MAX_NR_CIPHER_SUITES);
7851 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7852 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7855 wiphy = &rdev->wiphy;
7857 connect.bg_scan_period = -1;
7858 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7859 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7860 connect.bg_scan_period =
7861 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7864 if (info->attrs[NL80211_ATTR_MAC])
7865 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7866 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7867 connect.bssid_hint =
7868 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7869 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7870 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7872 if (info->attrs[NL80211_ATTR_IE]) {
7873 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7874 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7877 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7878 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7879 if (connect.mfp != NL80211_MFP_REQUIRED &&
7880 connect.mfp != NL80211_MFP_NO)
7883 connect.mfp = NL80211_MFP_NO;
7886 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7887 connect.channel = nl80211_get_valid_chan(
7888 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7889 if (!connect.channel)
7891 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7892 connect.channel_hint = nl80211_get_valid_chan(
7893 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7894 if (!connect.channel_hint)
7898 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7899 connkeys = nl80211_parse_connkeys(rdev,
7900 info->attrs[NL80211_ATTR_KEYS], NULL);
7901 if (IS_ERR(connkeys))
7902 return PTR_ERR(connkeys);
7905 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7906 connect.flags |= ASSOC_REQ_DISABLE_HT;
7908 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7909 memcpy(&connect.ht_capa_mask,
7910 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7911 sizeof(connect.ht_capa_mask));
7913 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7914 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7918 memcpy(&connect.ht_capa,
7919 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7920 sizeof(connect.ht_capa));
7923 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7924 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7926 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7927 memcpy(&connect.vht_capa_mask,
7928 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7929 sizeof(connect.vht_capa_mask));
7931 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7932 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7936 memcpy(&connect.vht_capa,
7937 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7938 sizeof(connect.vht_capa));
7941 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7942 if (!(rdev->wiphy.features &
7943 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7944 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7946 connect.flags |= ASSOC_REQ_USE_RRM;
7949 wdev_lock(dev->ieee80211_ptr);
7950 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7951 wdev_unlock(dev->ieee80211_ptr);
7957 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7959 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7960 struct net_device *dev = info->user_ptr[1];
7964 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7965 reason = WLAN_REASON_DEAUTH_LEAVING;
7967 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7972 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7973 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7976 wdev_lock(dev->ieee80211_ptr);
7977 ret = cfg80211_disconnect(rdev, dev, reason, true);
7978 wdev_unlock(dev->ieee80211_ptr);
7982 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7984 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7988 if (info->attrs[NL80211_ATTR_PID]) {
7989 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7991 net = get_net_ns_by_pid(pid);
7992 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7993 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
7995 net = get_net_ns_by_fd(fd);
8001 return PTR_ERR(net);
8005 /* check if anything to do */
8006 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8007 err = cfg80211_switch_netns(rdev, net);
8013 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8015 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8016 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8017 struct cfg80211_pmksa *pmksa) = NULL;
8018 struct net_device *dev = info->user_ptr[1];
8019 struct cfg80211_pmksa pmksa;
8021 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8023 if (!info->attrs[NL80211_ATTR_MAC])
8026 if (!info->attrs[NL80211_ATTR_PMKID])
8029 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8030 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8032 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8033 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8036 switch (info->genlhdr->cmd) {
8037 case NL80211_CMD_SET_PMKSA:
8038 rdev_ops = rdev->ops->set_pmksa;
8040 case NL80211_CMD_DEL_PMKSA:
8041 rdev_ops = rdev->ops->del_pmksa;
8051 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8054 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8056 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8057 struct net_device *dev = info->user_ptr[1];
8059 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8060 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8063 if (!rdev->ops->flush_pmksa)
8066 return rdev_flush_pmksa(rdev, dev);
8069 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8071 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8072 struct net_device *dev = info->user_ptr[1];
8073 u8 action_code, dialog_token;
8074 u32 peer_capability = 0;
8079 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8080 !rdev->ops->tdls_mgmt)
8083 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8084 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8085 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8086 !info->attrs[NL80211_ATTR_IE] ||
8087 !info->attrs[NL80211_ATTR_MAC])
8090 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8091 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8092 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8093 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8094 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8095 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8097 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8099 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8100 dialog_token, status_code, peer_capability,
8102 nla_data(info->attrs[NL80211_ATTR_IE]),
8103 nla_len(info->attrs[NL80211_ATTR_IE]));
8106 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8109 struct net_device *dev = info->user_ptr[1];
8110 enum nl80211_tdls_operation operation;
8113 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8114 !rdev->ops->tdls_oper)
8117 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8118 !info->attrs[NL80211_ATTR_MAC])
8121 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8122 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8124 return rdev_tdls_oper(rdev, dev, peer, operation);
8127 static int nl80211_remain_on_channel(struct sk_buff *skb,
8128 struct genl_info *info)
8130 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8131 struct wireless_dev *wdev = info->user_ptr[1];
8132 struct cfg80211_chan_def chandef;
8133 struct sk_buff *msg;
8139 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8140 !info->attrs[NL80211_ATTR_DURATION])
8143 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8145 if (!rdev->ops->remain_on_channel ||
8146 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8150 * We should be on that channel for at least a minimum amount of
8151 * time (10ms) but no longer than the driver supports.
8153 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8154 duration > rdev->wiphy.max_remain_on_channel_duration)
8157 err = nl80211_parse_chandef(rdev, info, &chandef);
8161 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8165 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8166 NL80211_CMD_REMAIN_ON_CHANNEL);
8172 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8178 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8179 goto nla_put_failure;
8181 genlmsg_end(msg, hdr);
8183 return genlmsg_reply(msg, info);
8192 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8193 struct genl_info *info)
8195 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8196 struct wireless_dev *wdev = info->user_ptr[1];
8199 if (!info->attrs[NL80211_ATTR_COOKIE])
8202 if (!rdev->ops->cancel_remain_on_channel)
8205 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8207 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8210 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8211 u8 *rates, u8 rates_len)
8216 for (i = 0; i < rates_len; i++) {
8217 int rate = (rates[i] & 0x7f) * 5;
8219 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8220 struct ieee80211_rate *srate =
8221 &sband->bitrates[ridx];
8222 if (rate == srate->bitrate) {
8227 if (ridx == sband->n_bitrates)
8228 return 0; /* rate not found */
8234 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8235 u8 *rates, u8 rates_len,
8236 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8240 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8242 for (i = 0; i < rates_len; i++) {
8245 ridx = rates[i] / 8;
8246 rbit = BIT(rates[i] % 8);
8248 /* check validity */
8249 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8252 /* check availability */
8253 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8262 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8266 switch (vht_mcs_map) {
8267 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8269 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8272 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8275 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8285 static void vht_build_mcs_mask(u16 vht_mcs_map,
8286 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8290 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8291 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8296 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8297 struct nl80211_txrate_vht *txrate,
8298 u16 mcs[NL80211_VHT_NSS_MAX])
8300 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8301 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8304 if (!sband->vht_cap.vht_supported)
8307 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8309 /* Build vht_mcs_mask from VHT capabilities */
8310 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8312 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8313 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8314 mcs[i] = txrate->mcs[i];
8322 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8323 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8324 .len = NL80211_MAX_SUPP_RATES },
8325 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8326 .len = NL80211_MAX_SUPP_HT_RATES },
8327 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8328 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8331 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8332 struct genl_info *info)
8334 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8335 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8336 struct cfg80211_bitrate_mask mask;
8338 struct net_device *dev = info->user_ptr[1];
8339 struct nlattr *tx_rates;
8340 struct ieee80211_supported_band *sband;
8343 if (!rdev->ops->set_bitrate_mask)
8346 memset(&mask, 0, sizeof(mask));
8347 /* Default to all rates enabled */
8348 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8349 sband = rdev->wiphy.bands[i];
8354 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8355 memcpy(mask.control[i].ht_mcs,
8356 sband->ht_cap.mcs.rx_mask,
8357 sizeof(mask.control[i].ht_mcs));
8359 if (!sband->vht_cap.vht_supported)
8362 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8363 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8366 /* if no rates are given set it back to the defaults */
8367 if (!info->attrs[NL80211_ATTR_TX_RATES])
8371 * The nested attribute uses enum nl80211_band as the index. This maps
8372 * directly to the enum ieee80211_band values used in cfg80211.
8374 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8375 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8376 enum ieee80211_band band = nla_type(tx_rates);
8379 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8381 sband = rdev->wiphy.bands[band];
8384 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8385 nla_len(tx_rates), nl80211_txattr_policy);
8388 if (tb[NL80211_TXRATE_LEGACY]) {
8389 mask.control[band].legacy = rateset_to_mask(
8391 nla_data(tb[NL80211_TXRATE_LEGACY]),
8392 nla_len(tb[NL80211_TXRATE_LEGACY]));
8393 if ((mask.control[band].legacy == 0) &&
8394 nla_len(tb[NL80211_TXRATE_LEGACY]))
8397 if (tb[NL80211_TXRATE_HT]) {
8398 if (!ht_rateset_to_mask(
8400 nla_data(tb[NL80211_TXRATE_HT]),
8401 nla_len(tb[NL80211_TXRATE_HT]),
8402 mask.control[band].ht_mcs))
8405 if (tb[NL80211_TXRATE_VHT]) {
8406 if (!vht_set_mcs_mask(
8408 nla_data(tb[NL80211_TXRATE_VHT]),
8409 mask.control[band].vht_mcs))
8412 if (tb[NL80211_TXRATE_GI]) {
8413 mask.control[band].gi =
8414 nla_get_u8(tb[NL80211_TXRATE_GI]);
8415 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8419 if (mask.control[band].legacy == 0) {
8420 /* don't allow empty legacy rates if HT or VHT
8421 * are not even supported.
8423 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8424 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8427 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8428 if (mask.control[band].ht_mcs[i])
8431 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8432 if (mask.control[band].vht_mcs[i])
8435 /* legacy and mcs rates may not be both empty */
8441 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8444 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8447 struct wireless_dev *wdev = info->user_ptr[1];
8448 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8450 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8453 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8454 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8456 switch (wdev->iftype) {
8457 case NL80211_IFTYPE_STATION:
8458 case NL80211_IFTYPE_ADHOC:
8459 case NL80211_IFTYPE_P2P_CLIENT:
8460 case NL80211_IFTYPE_AP:
8461 case NL80211_IFTYPE_AP_VLAN:
8462 case NL80211_IFTYPE_MESH_POINT:
8463 case NL80211_IFTYPE_P2P_GO:
8464 case NL80211_IFTYPE_P2P_DEVICE:
8470 /* not much point in registering if we can't reply */
8471 if (!rdev->ops->mgmt_tx)
8474 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8475 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8476 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8479 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8481 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8482 struct wireless_dev *wdev = info->user_ptr[1];
8483 struct cfg80211_chan_def chandef;
8487 struct sk_buff *msg = NULL;
8488 struct cfg80211_mgmt_tx_params params = {
8489 .dont_wait_for_ack =
8490 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8493 if (!info->attrs[NL80211_ATTR_FRAME])
8496 if (!rdev->ops->mgmt_tx)
8499 switch (wdev->iftype) {
8500 case NL80211_IFTYPE_P2P_DEVICE:
8501 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8503 case NL80211_IFTYPE_STATION:
8504 case NL80211_IFTYPE_ADHOC:
8505 case NL80211_IFTYPE_P2P_CLIENT:
8506 case NL80211_IFTYPE_AP:
8507 case NL80211_IFTYPE_AP_VLAN:
8508 case NL80211_IFTYPE_MESH_POINT:
8509 case NL80211_IFTYPE_P2P_GO:
8515 if (info->attrs[NL80211_ATTR_DURATION]) {
8516 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8518 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8521 * We should wait on the channel for at least a minimum amount
8522 * of time (10ms) but no longer than the driver supports.
8524 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8525 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8530 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8532 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8535 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8537 /* get the channel if any has been specified, otherwise pass NULL to
8538 * the driver. The latter will use the current one
8540 chandef.chan = NULL;
8541 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8542 err = nl80211_parse_chandef(rdev, info, &chandef);
8547 if (!chandef.chan && params.offchan)
8550 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8551 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8553 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8554 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8557 if (len % sizeof(u16))
8560 params.n_csa_offsets = len / sizeof(u16);
8561 params.csa_offsets =
8562 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8564 /* check that all the offsets fit the frame */
8565 for (i = 0; i < params.n_csa_offsets; i++) {
8566 if (params.csa_offsets[i] >= params.len)
8571 if (!params.dont_wait_for_ack) {
8572 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8576 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8584 params.chan = chandef.chan;
8585 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8590 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8591 goto nla_put_failure;
8593 genlmsg_end(msg, hdr);
8594 return genlmsg_reply(msg, info);
8606 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8608 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8609 struct wireless_dev *wdev = info->user_ptr[1];
8612 if (!info->attrs[NL80211_ATTR_COOKIE])
8615 if (!rdev->ops->mgmt_tx_cancel_wait)
8618 switch (wdev->iftype) {
8619 case NL80211_IFTYPE_STATION:
8620 case NL80211_IFTYPE_ADHOC:
8621 case NL80211_IFTYPE_P2P_CLIENT:
8622 case NL80211_IFTYPE_AP:
8623 case NL80211_IFTYPE_AP_VLAN:
8624 case NL80211_IFTYPE_P2P_GO:
8625 case NL80211_IFTYPE_P2P_DEVICE:
8631 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8633 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8636 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8638 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8639 struct wireless_dev *wdev;
8640 struct net_device *dev = info->user_ptr[1];
8645 if (!info->attrs[NL80211_ATTR_PS_STATE])
8648 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8650 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8653 wdev = dev->ieee80211_ptr;
8655 if (!rdev->ops->set_power_mgmt)
8658 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8660 if (state == wdev->ps)
8663 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8669 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8671 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8672 enum nl80211_ps_state ps_state;
8673 struct wireless_dev *wdev;
8674 struct net_device *dev = info->user_ptr[1];
8675 struct sk_buff *msg;
8679 wdev = dev->ieee80211_ptr;
8681 if (!rdev->ops->set_power_mgmt)
8684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8688 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8689 NL80211_CMD_GET_POWER_SAVE);
8696 ps_state = NL80211_PS_ENABLED;
8698 ps_state = NL80211_PS_DISABLED;
8700 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8701 goto nla_put_failure;
8703 genlmsg_end(msg, hdr);
8704 return genlmsg_reply(msg, info);
8713 static const struct nla_policy
8714 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8715 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8716 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8717 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8718 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8719 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8720 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8723 static int nl80211_set_cqm_txe(struct genl_info *info,
8724 u32 rate, u32 pkts, u32 intvl)
8726 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8727 struct net_device *dev = info->user_ptr[1];
8728 struct wireless_dev *wdev = dev->ieee80211_ptr;
8730 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8733 if (!rdev->ops->set_cqm_txe_config)
8736 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8737 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8740 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8743 static int nl80211_set_cqm_rssi(struct genl_info *info,
8744 s32 threshold, u32 hysteresis)
8746 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8747 struct net_device *dev = info->user_ptr[1];
8748 struct wireless_dev *wdev = dev->ieee80211_ptr;
8753 /* disabling - hysteresis should also be zero then */
8757 if (!rdev->ops->set_cqm_rssi_config)
8760 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8761 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8764 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8767 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8769 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8773 cqm = info->attrs[NL80211_ATTR_CQM];
8777 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8778 nl80211_attr_cqm_policy);
8782 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8783 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8784 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8785 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8787 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8790 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8791 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8792 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8793 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8794 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8795 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8797 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8803 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8805 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8806 struct net_device *dev = info->user_ptr[1];
8807 struct ocb_setup setup = {};
8810 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8814 return cfg80211_join_ocb(rdev, dev, &setup);
8817 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8819 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8820 struct net_device *dev = info->user_ptr[1];
8822 return cfg80211_leave_ocb(rdev, dev);
8825 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8827 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8828 struct net_device *dev = info->user_ptr[1];
8829 struct mesh_config cfg;
8830 struct mesh_setup setup;
8833 /* start with default */
8834 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8835 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8837 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8838 /* and parse parameters if given */
8839 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8844 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8845 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8848 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8849 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8851 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8852 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8853 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8856 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8857 setup.beacon_interval =
8858 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8859 if (setup.beacon_interval < 10 ||
8860 setup.beacon_interval > 10000)
8864 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8866 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8867 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8871 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8872 /* parse additional setup parameters if given */
8873 err = nl80211_parse_mesh_setup(info, &setup);
8879 cfg.auto_open_plinks = false;
8881 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8882 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8886 /* cfg80211_join_mesh() will sort it out */
8887 setup.chandef.chan = NULL;
8890 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8891 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8893 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8894 struct ieee80211_supported_band *sband;
8896 if (!setup.chandef.chan)
8899 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8901 err = ieee80211_get_ratemask(sband, rates, n_rates,
8902 &setup.basic_rates);
8907 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8910 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8912 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8913 struct net_device *dev = info->user_ptr[1];
8915 return cfg80211_leave_mesh(rdev, dev);
8919 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8920 struct cfg80211_registered_device *rdev)
8922 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8923 struct nlattr *nl_pats, *nl_pat;
8926 if (!wowlan->n_patterns)
8929 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8933 for (i = 0; i < wowlan->n_patterns; i++) {
8934 nl_pat = nla_nest_start(msg, i + 1);
8937 pat_len = wowlan->patterns[i].pattern_len;
8938 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8939 wowlan->patterns[i].mask) ||
8940 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8941 wowlan->patterns[i].pattern) ||
8942 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8943 wowlan->patterns[i].pkt_offset))
8945 nla_nest_end(msg, nl_pat);
8947 nla_nest_end(msg, nl_pats);
8952 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8953 struct cfg80211_wowlan_tcp *tcp)
8955 struct nlattr *nl_tcp;
8960 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8964 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8965 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8966 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8967 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8968 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8969 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8970 tcp->payload_len, tcp->payload) ||
8971 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8972 tcp->data_interval) ||
8973 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8974 tcp->wake_len, tcp->wake_data) ||
8975 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8976 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8979 if (tcp->payload_seq.len &&
8980 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8981 sizeof(tcp->payload_seq), &tcp->payload_seq))
8984 if (tcp->payload_tok.len &&
8985 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8986 sizeof(tcp->payload_tok) + tcp->tokens_size,
8990 nla_nest_end(msg, nl_tcp);
8995 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8996 struct cfg80211_sched_scan_request *req)
8998 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9004 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9008 if (req->n_scan_plans == 1 &&
9009 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9010 req->scan_plans[0].interval * 1000))
9013 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9016 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9020 for (i = 0; i < req->n_channels; i++)
9021 nla_put_u32(msg, i, req->channels[i]->center_freq);
9023 nla_nest_end(msg, freqs);
9025 if (req->n_match_sets) {
9026 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9027 for (i = 0; i < req->n_match_sets; i++) {
9028 match = nla_nest_start(msg, i);
9029 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9030 req->match_sets[i].ssid.ssid_len,
9031 req->match_sets[i].ssid.ssid);
9032 nla_nest_end(msg, match);
9034 nla_nest_end(msg, matches);
9037 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9041 for (i = 0; i < req->n_scan_plans; i++) {
9042 scan_plan = nla_nest_start(msg, i + 1);
9044 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9045 req->scan_plans[i].interval) ||
9046 (req->scan_plans[i].iterations &&
9047 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9048 req->scan_plans[i].iterations)))
9050 nla_nest_end(msg, scan_plan);
9052 nla_nest_end(msg, scan_plans);
9054 nla_nest_end(msg, nd);
9059 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9061 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9062 struct sk_buff *msg;
9064 u32 size = NLMSG_DEFAULT_SIZE;
9066 if (!rdev->wiphy.wowlan)
9069 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9070 /* adjust size to have room for all the data */
9071 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9072 rdev->wiphy.wowlan_config->tcp->payload_len +
9073 rdev->wiphy.wowlan_config->tcp->wake_len +
9074 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9077 msg = nlmsg_new(size, GFP_KERNEL);
9081 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9082 NL80211_CMD_GET_WOWLAN);
9084 goto nla_put_failure;
9086 if (rdev->wiphy.wowlan_config) {
9087 struct nlattr *nl_wowlan;
9089 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9091 goto nla_put_failure;
9093 if ((rdev->wiphy.wowlan_config->any &&
9094 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9095 (rdev->wiphy.wowlan_config->disconnect &&
9096 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9097 (rdev->wiphy.wowlan_config->magic_pkt &&
9098 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9099 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9100 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9101 (rdev->wiphy.wowlan_config->eap_identity_req &&
9102 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9103 (rdev->wiphy.wowlan_config->four_way_handshake &&
9104 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9105 (rdev->wiphy.wowlan_config->rfkill_release &&
9106 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9107 goto nla_put_failure;
9109 if (nl80211_send_wowlan_patterns(msg, rdev))
9110 goto nla_put_failure;
9112 if (nl80211_send_wowlan_tcp(msg,
9113 rdev->wiphy.wowlan_config->tcp))
9114 goto nla_put_failure;
9116 if (nl80211_send_wowlan_nd(
9118 rdev->wiphy.wowlan_config->nd_config))
9119 goto nla_put_failure;
9121 nla_nest_end(msg, nl_wowlan);
9124 genlmsg_end(msg, hdr);
9125 return genlmsg_reply(msg, info);
9132 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9133 struct nlattr *attr,
9134 struct cfg80211_wowlan *trig)
9136 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9137 struct cfg80211_wowlan_tcp *cfg;
9138 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9139 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9141 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9144 if (!rdev->wiphy.wowlan->tcp)
9147 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9148 nla_data(attr), nla_len(attr),
9149 nl80211_wowlan_tcp_policy);
9153 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9154 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9155 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9156 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9157 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9158 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9159 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9160 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9163 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9164 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9167 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9168 rdev->wiphy.wowlan->tcp->data_interval_max ||
9169 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9172 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9173 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9176 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9177 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9180 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9181 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9183 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9184 tokens_size = tokln - sizeof(*tok);
9186 if (!tok->len || tokens_size % tok->len)
9188 if (!rdev->wiphy.wowlan->tcp->tok)
9190 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9192 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9194 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9196 if (tok->offset + tok->len > data_size)
9200 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9201 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9202 if (!rdev->wiphy.wowlan->tcp->seq)
9204 if (seq->len == 0 || seq->len > 4)
9206 if (seq->len + seq->offset > data_size)
9210 size = sizeof(*cfg);
9212 size += wake_size + wake_mask_size;
9213 size += tokens_size;
9215 cfg = kzalloc(size, GFP_KERNEL);
9218 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9219 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9220 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9222 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9223 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9227 /* allocate a socket and port for it and use it */
9228 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9229 IPPROTO_TCP, &cfg->sock, 1);
9234 if (inet_csk_get_port(cfg->sock->sk, port)) {
9235 sock_release(cfg->sock);
9239 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9245 cfg->src_port = port;
9248 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9249 cfg->payload_len = data_size;
9250 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9251 memcpy((void *)cfg->payload,
9252 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9255 cfg->payload_seq = *seq;
9256 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9257 cfg->wake_len = wake_size;
9258 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9259 memcpy((void *)cfg->wake_data,
9260 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9262 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9263 data_size + wake_size;
9264 memcpy((void *)cfg->wake_mask,
9265 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9268 cfg->tokens_size = tokens_size;
9269 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9277 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9278 const struct wiphy_wowlan_support *wowlan,
9279 struct nlattr *attr,
9280 struct cfg80211_wowlan *trig)
9285 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9289 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9294 err = nla_parse(tb, NL80211_ATTR_MAX,
9295 nla_data(attr), nla_len(attr),
9300 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9301 err = PTR_ERR_OR_ZERO(trig->nd_config);
9303 trig->nd_config = NULL;
9310 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9313 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9314 struct cfg80211_wowlan new_triggers = {};
9315 struct cfg80211_wowlan *ntrig;
9316 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9318 bool prev_enabled = rdev->wiphy.wowlan_config;
9319 bool regular = false;
9324 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9325 cfg80211_rdev_free_wowlan(rdev);
9326 rdev->wiphy.wowlan_config = NULL;
9330 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9331 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9332 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9333 nl80211_wowlan_policy);
9337 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9338 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9340 new_triggers.any = true;
9343 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9344 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9346 new_triggers.disconnect = true;
9350 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9351 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9353 new_triggers.magic_pkt = true;
9357 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9360 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9361 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9363 new_triggers.gtk_rekey_failure = true;
9367 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9368 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9370 new_triggers.eap_identity_req = true;
9374 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9375 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9377 new_triggers.four_way_handshake = true;
9381 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9382 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9384 new_triggers.rfkill_release = true;
9388 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9391 int rem, pat_len, mask_len, pkt_offset;
9392 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9396 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9399 if (n_patterns > wowlan->n_patterns)
9402 new_triggers.patterns = kcalloc(n_patterns,
9403 sizeof(new_triggers.patterns[0]),
9405 if (!new_triggers.patterns)
9408 new_triggers.n_patterns = n_patterns;
9411 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9415 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9416 nla_len(pat), NULL);
9418 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9419 !pat_tb[NL80211_PKTPAT_PATTERN])
9421 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9422 mask_len = DIV_ROUND_UP(pat_len, 8);
9423 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9425 if (pat_len > wowlan->pattern_max_len ||
9426 pat_len < wowlan->pattern_min_len)
9429 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9432 pkt_offset = nla_get_u32(
9433 pat_tb[NL80211_PKTPAT_OFFSET]);
9434 if (pkt_offset > wowlan->max_pkt_offset)
9436 new_triggers.patterns[i].pkt_offset = pkt_offset;
9438 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9443 new_triggers.patterns[i].mask = mask_pat;
9444 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9446 mask_pat += mask_len;
9447 new_triggers.patterns[i].pattern = mask_pat;
9448 new_triggers.patterns[i].pattern_len = pat_len;
9450 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9456 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9458 err = nl80211_parse_wowlan_tcp(
9459 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9465 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9467 err = nl80211_parse_wowlan_nd(
9468 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9474 /* The 'any' trigger means the device continues operating more or less
9475 * as in its normal operation mode and wakes up the host on most of the
9476 * normal interrupts (like packet RX, ...)
9477 * It therefore makes little sense to combine with the more constrained
9478 * wakeup trigger modes.
9480 if (new_triggers.any && regular) {
9485 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9490 cfg80211_rdev_free_wowlan(rdev);
9491 rdev->wiphy.wowlan_config = ntrig;
9494 if (rdev->ops->set_wakeup &&
9495 prev_enabled != !!rdev->wiphy.wowlan_config)
9496 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9500 for (i = 0; i < new_triggers.n_patterns; i++)
9501 kfree(new_triggers.patterns[i].mask);
9502 kfree(new_triggers.patterns);
9503 if (new_triggers.tcp && new_triggers.tcp->sock)
9504 sock_release(new_triggers.tcp->sock);
9505 kfree(new_triggers.tcp);
9510 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9511 struct cfg80211_registered_device *rdev)
9513 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9515 struct cfg80211_coalesce_rules *rule;
9517 if (!rdev->coalesce->n_rules)
9520 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9524 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9525 nl_rule = nla_nest_start(msg, i + 1);
9529 rule = &rdev->coalesce->rules[i];
9530 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9534 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9538 nl_pats = nla_nest_start(msg,
9539 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9543 for (j = 0; j < rule->n_patterns; j++) {
9544 nl_pat = nla_nest_start(msg, j + 1);
9547 pat_len = rule->patterns[j].pattern_len;
9548 if (nla_put(msg, NL80211_PKTPAT_MASK,
9549 DIV_ROUND_UP(pat_len, 8),
9550 rule->patterns[j].mask) ||
9551 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9552 rule->patterns[j].pattern) ||
9553 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9554 rule->patterns[j].pkt_offset))
9556 nla_nest_end(msg, nl_pat);
9558 nla_nest_end(msg, nl_pats);
9559 nla_nest_end(msg, nl_rule);
9561 nla_nest_end(msg, nl_rules);
9566 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9568 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9569 struct sk_buff *msg;
9572 if (!rdev->wiphy.coalesce)
9575 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9579 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9580 NL80211_CMD_GET_COALESCE);
9582 goto nla_put_failure;
9584 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9585 goto nla_put_failure;
9587 genlmsg_end(msg, hdr);
9588 return genlmsg_reply(msg, info);
9595 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9597 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9599 struct cfg80211_coalesce_rules *rule;
9604 for (i = 0; i < coalesce->n_rules; i++) {
9605 rule = &coalesce->rules[i];
9606 for (j = 0; j < rule->n_patterns; j++)
9607 kfree(rule->patterns[j].mask);
9608 kfree(rule->patterns);
9610 kfree(coalesce->rules);
9612 rdev->coalesce = NULL;
9615 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9616 struct nlattr *rule,
9617 struct cfg80211_coalesce_rules *new_rule)
9620 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9621 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9622 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9623 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9625 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9626 nla_len(rule), nl80211_coalesce_policy);
9630 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9632 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9633 if (new_rule->delay > coalesce->max_delay)
9636 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9637 new_rule->condition =
9638 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9639 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9640 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9643 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9646 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9649 if (n_patterns > coalesce->n_patterns)
9652 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9654 if (!new_rule->patterns)
9657 new_rule->n_patterns = n_patterns;
9660 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9664 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9665 nla_len(pat), NULL);
9666 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9667 !pat_tb[NL80211_PKTPAT_PATTERN])
9669 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9670 mask_len = DIV_ROUND_UP(pat_len, 8);
9671 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9673 if (pat_len > coalesce->pattern_max_len ||
9674 pat_len < coalesce->pattern_min_len)
9677 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9680 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9681 if (pkt_offset > coalesce->max_pkt_offset)
9683 new_rule->patterns[i].pkt_offset = pkt_offset;
9685 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9689 new_rule->patterns[i].mask = mask_pat;
9690 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9693 mask_pat += mask_len;
9694 new_rule->patterns[i].pattern = mask_pat;
9695 new_rule->patterns[i].pattern_len = pat_len;
9696 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9704 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9706 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9707 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9708 struct cfg80211_coalesce new_coalesce = {};
9709 struct cfg80211_coalesce *n_coalesce;
9710 int err, rem_rule, n_rules = 0, i, j;
9711 struct nlattr *rule;
9712 struct cfg80211_coalesce_rules *tmp_rule;
9714 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9717 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9718 cfg80211_rdev_free_coalesce(rdev);
9719 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9723 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9726 if (n_rules > coalesce->n_rules)
9729 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9731 if (!new_coalesce.rules)
9734 new_coalesce.n_rules = n_rules;
9737 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9739 err = nl80211_parse_coalesce_rule(rdev, rule,
9740 &new_coalesce.rules[i]);
9747 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9751 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9756 cfg80211_rdev_free_coalesce(rdev);
9757 rdev->coalesce = n_coalesce;
9761 for (i = 0; i < new_coalesce.n_rules; i++) {
9762 tmp_rule = &new_coalesce.rules[i];
9763 for (j = 0; j < tmp_rule->n_patterns; j++)
9764 kfree(tmp_rule->patterns[j].mask);
9765 kfree(tmp_rule->patterns);
9767 kfree(new_coalesce.rules);
9772 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9774 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9775 struct net_device *dev = info->user_ptr[1];
9776 struct wireless_dev *wdev = dev->ieee80211_ptr;
9777 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9778 struct cfg80211_gtk_rekey_data rekey_data;
9781 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9784 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9785 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9786 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9787 nl80211_rekey_policy);
9791 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9793 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9795 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9798 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9799 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9800 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9803 if (!wdev->current_bss) {
9808 if (!rdev->ops->set_rekey_data) {
9813 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9819 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9820 struct genl_info *info)
9822 struct net_device *dev = info->user_ptr[1];
9823 struct wireless_dev *wdev = dev->ieee80211_ptr;
9825 if (wdev->iftype != NL80211_IFTYPE_AP &&
9826 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9829 if (wdev->ap_unexpected_nlportid)
9832 wdev->ap_unexpected_nlportid = info->snd_portid;
9836 static int nl80211_probe_client(struct sk_buff *skb,
9837 struct genl_info *info)
9839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9840 struct net_device *dev = info->user_ptr[1];
9841 struct wireless_dev *wdev = dev->ieee80211_ptr;
9842 struct sk_buff *msg;
9848 if (wdev->iftype != NL80211_IFTYPE_AP &&
9849 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9852 if (!info->attrs[NL80211_ATTR_MAC])
9855 if (!rdev->ops->probe_client)
9858 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9862 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9863 NL80211_CMD_PROBE_CLIENT);
9869 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9871 err = rdev_probe_client(rdev, dev, addr, &cookie);
9875 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9876 goto nla_put_failure;
9878 genlmsg_end(msg, hdr);
9880 return genlmsg_reply(msg, info);
9889 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9891 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9892 struct cfg80211_beacon_registration *reg, *nreg;
9895 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9898 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9902 /* First, check if already registered. */
9903 spin_lock_bh(&rdev->beacon_registrations_lock);
9904 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9905 if (reg->nlportid == info->snd_portid) {
9910 /* Add it to the list */
9911 nreg->nlportid = info->snd_portid;
9912 list_add(&nreg->list, &rdev->beacon_registrations);
9914 spin_unlock_bh(&rdev->beacon_registrations_lock);
9918 spin_unlock_bh(&rdev->beacon_registrations_lock);
9923 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9925 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9926 struct wireless_dev *wdev = info->user_ptr[1];
9929 if (!rdev->ops->start_p2p_device)
9932 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9935 if (wdev->p2p_started)
9938 if (rfkill_blocked(rdev->rfkill))
9941 err = rdev_start_p2p_device(rdev, wdev);
9945 wdev->p2p_started = true;
9951 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9953 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9954 struct wireless_dev *wdev = info->user_ptr[1];
9956 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9959 if (!rdev->ops->stop_p2p_device)
9962 cfg80211_stop_p2p_device(rdev, wdev);
9967 static int nl80211_get_protocol_features(struct sk_buff *skb,
9968 struct genl_info *info)
9971 struct sk_buff *msg;
9973 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9977 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9978 NL80211_CMD_GET_PROTOCOL_FEATURES);
9980 goto nla_put_failure;
9982 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9983 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9984 goto nla_put_failure;
9986 genlmsg_end(msg, hdr);
9987 return genlmsg_reply(msg, info);
9994 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9996 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9997 struct cfg80211_update_ft_ies_params ft_params;
9998 struct net_device *dev = info->user_ptr[1];
10000 if (!rdev->ops->update_ft_ies)
10001 return -EOPNOTSUPP;
10003 if (!info->attrs[NL80211_ATTR_MDID] ||
10004 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10007 memset(&ft_params, 0, sizeof(ft_params));
10008 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10009 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10010 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10012 return rdev_update_ft_ies(rdev, dev, &ft_params);
10015 static int nl80211_crit_protocol_start(struct sk_buff *skb,
10016 struct genl_info *info)
10018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10019 struct wireless_dev *wdev = info->user_ptr[1];
10020 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10024 if (!rdev->ops->crit_proto_start)
10025 return -EOPNOTSUPP;
10027 if (WARN_ON(!rdev->ops->crit_proto_stop))
10030 if (rdev->crit_proto_nlportid)
10033 /* determine protocol if provided */
10034 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10035 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10037 if (proto >= NUM_NL80211_CRIT_PROTO)
10040 /* timeout must be provided */
10041 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10045 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10047 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10050 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10052 rdev->crit_proto_nlportid = info->snd_portid;
10057 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10058 struct genl_info *info)
10060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10061 struct wireless_dev *wdev = info->user_ptr[1];
10063 if (!rdev->ops->crit_proto_stop)
10064 return -EOPNOTSUPP;
10066 if (rdev->crit_proto_nlportid) {
10067 rdev->crit_proto_nlportid = 0;
10068 rdev_crit_proto_stop(rdev, wdev);
10073 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10075 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10076 struct wireless_dev *wdev =
10077 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10081 if (!rdev->wiphy.vendor_commands)
10082 return -EOPNOTSUPP;
10084 if (IS_ERR(wdev)) {
10085 err = PTR_ERR(wdev);
10086 if (err != -EINVAL)
10089 } else if (wdev->wiphy != &rdev->wiphy) {
10093 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10094 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10097 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10098 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10099 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10100 const struct wiphy_vendor_command *vcmd;
10104 vcmd = &rdev->wiphy.vendor_commands[i];
10106 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10109 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10110 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10113 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10117 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10118 if (wdev->netdev &&
10119 !netif_running(wdev->netdev))
10121 if (!wdev->netdev && !wdev->p2p_started)
10126 return -EOPNOTSUPP;
10131 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10132 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10133 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10136 rdev->cur_cmd_info = info;
10137 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10139 rdev->cur_cmd_info = NULL;
10143 return -EOPNOTSUPP;
10146 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10147 struct netlink_callback *cb,
10148 struct cfg80211_registered_device **rdev,
10149 struct wireless_dev **wdev)
10156 unsigned int data_len = 0;
10161 /* subtract the 1 again here */
10162 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10163 struct wireless_dev *tmp;
10169 *rdev = wiphy_to_rdev(wiphy);
10173 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10174 if (tmp->identifier == cb->args[1] - 1) {
10181 /* keep rtnl locked in successful case */
10185 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10186 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10191 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10192 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10197 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10198 nl80211_fam.attrbuf);
10202 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10203 nl80211_fam.attrbuf);
10204 if (IS_ERR(*rdev)) {
10205 err = PTR_ERR(*rdev);
10209 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10210 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10212 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10213 const struct wiphy_vendor_command *vcmd;
10215 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10217 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10220 if (!vcmd->dumpit) {
10229 if (vcmd_idx < 0) {
10234 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10235 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10236 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10239 /* 0 is the first index - add 1 to parse only once */
10240 cb->args[0] = (*rdev)->wiphy_idx + 1;
10241 /* add 1 to know if it was NULL */
10242 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10243 cb->args[2] = vcmd_idx;
10244 cb->args[3] = (unsigned long)data;
10245 cb->args[4] = data_len;
10247 /* keep rtnl locked in successful case */
10254 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10255 struct netlink_callback *cb)
10257 struct cfg80211_registered_device *rdev;
10258 struct wireless_dev *wdev;
10259 unsigned int vcmd_idx;
10260 const struct wiphy_vendor_command *vcmd;
10264 struct nlattr *vendor_data;
10266 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10270 vcmd_idx = cb->args[2];
10271 data = (void *)cb->args[3];
10272 data_len = cb->args[4];
10273 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10275 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10276 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10279 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10283 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10284 if (wdev->netdev &&
10285 !netif_running(wdev->netdev))
10287 if (!wdev->netdev && !wdev->p2p_started)
10293 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10294 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10295 NL80211_CMD_VENDOR);
10299 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10300 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10302 genlmsg_cancel(skb, hdr);
10306 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10307 if (!vendor_data) {
10308 genlmsg_cancel(skb, hdr);
10312 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10313 (unsigned long *)&cb->args[5]);
10314 nla_nest_end(skb, vendor_data);
10316 if (err == -ENOBUFS || err == -ENOENT) {
10317 genlmsg_cancel(skb, hdr);
10320 genlmsg_cancel(skb, hdr);
10324 genlmsg_end(skb, hdr);
10333 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10334 enum nl80211_commands cmd,
10335 enum nl80211_attrs attr,
10338 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10340 if (WARN_ON(!rdev->cur_cmd_info))
10343 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
10344 rdev->cur_cmd_info->snd_portid,
10345 rdev->cur_cmd_info->snd_seq,
10346 cmd, attr, NULL, GFP_KERNEL);
10348 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10350 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10352 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10353 void *hdr = ((void **)skb->cb)[1];
10354 struct nlattr *data = ((void **)skb->cb)[2];
10356 /* clear CB data for netlink core to own from now on */
10357 memset(skb->cb, 0, sizeof(skb->cb));
10359 if (WARN_ON(!rdev->cur_cmd_info)) {
10364 nla_nest_end(skb, data);
10365 genlmsg_end(skb, hdr);
10366 return genlmsg_reply(skb, rdev->cur_cmd_info);
10368 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10371 static int nl80211_set_qos_map(struct sk_buff *skb,
10372 struct genl_info *info)
10374 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10375 struct cfg80211_qos_map *qos_map = NULL;
10376 struct net_device *dev = info->user_ptr[1];
10377 u8 *pos, len, num_des, des_len, des;
10380 if (!rdev->ops->set_qos_map)
10381 return -EOPNOTSUPP;
10383 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10384 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10385 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10387 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10388 len > IEEE80211_QOS_MAP_LEN_MAX)
10391 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10395 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10397 des_len = num_des *
10398 sizeof(struct cfg80211_dscp_exception);
10399 memcpy(qos_map->dscp_exception, pos, des_len);
10400 qos_map->num_des = num_des;
10401 for (des = 0; des < num_des; des++) {
10402 if (qos_map->dscp_exception[des].up > 7) {
10409 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10412 wdev_lock(dev->ieee80211_ptr);
10413 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10415 ret = rdev_set_qos_map(rdev, dev, qos_map);
10416 wdev_unlock(dev->ieee80211_ptr);
10422 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10424 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10425 struct net_device *dev = info->user_ptr[1];
10426 struct wireless_dev *wdev = dev->ieee80211_ptr;
10429 u16 admitted_time = 0;
10432 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10433 return -EOPNOTSUPP;
10435 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10436 !info->attrs[NL80211_ATTR_USER_PRIO])
10439 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10440 if (tsid >= IEEE80211_NUM_TIDS)
10443 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10444 if (up >= IEEE80211_NUM_UPS)
10447 /* WMM uses TIDs 0-7 even for TSPEC */
10448 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10449 /* TODO: handle 802.11 TSPEC/admission control
10450 * need more attributes for that (e.g. BA session requirement);
10451 * change the WMM adminssion test above to allow both then
10456 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10458 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10460 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10461 if (!admitted_time)
10466 switch (wdev->iftype) {
10467 case NL80211_IFTYPE_STATION:
10468 case NL80211_IFTYPE_P2P_CLIENT:
10469 if (wdev->current_bss)
10478 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10485 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10488 struct net_device *dev = info->user_ptr[1];
10489 struct wireless_dev *wdev = dev->ieee80211_ptr;
10494 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10497 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10498 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10501 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10507 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10508 struct genl_info *info)
10510 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10511 struct net_device *dev = info->user_ptr[1];
10512 struct wireless_dev *wdev = dev->ieee80211_ptr;
10513 struct cfg80211_chan_def chandef = {};
10518 if (!rdev->ops->tdls_channel_switch ||
10519 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10520 return -EOPNOTSUPP;
10522 switch (dev->ieee80211_ptr->iftype) {
10523 case NL80211_IFTYPE_STATION:
10524 case NL80211_IFTYPE_P2P_CLIENT:
10527 return -EOPNOTSUPP;
10530 if (!info->attrs[NL80211_ATTR_MAC] ||
10531 !info->attrs[NL80211_ATTR_OPER_CLASS])
10534 err = nl80211_parse_chandef(rdev, info, &chandef);
10539 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10540 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10541 * specification is not defined for them.
10543 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10544 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10545 chandef.width != NL80211_CHAN_WIDTH_20)
10548 /* we will be active on the TDLS link */
10549 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10553 /* don't allow switching to DFS channels */
10554 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10557 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10558 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10561 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10567 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10568 struct genl_info *info)
10570 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10571 struct net_device *dev = info->user_ptr[1];
10572 struct wireless_dev *wdev = dev->ieee80211_ptr;
10575 if (!rdev->ops->tdls_channel_switch ||
10576 !rdev->ops->tdls_cancel_channel_switch ||
10577 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10578 return -EOPNOTSUPP;
10580 switch (dev->ieee80211_ptr->iftype) {
10581 case NL80211_IFTYPE_STATION:
10582 case NL80211_IFTYPE_P2P_CLIENT:
10585 return -EOPNOTSUPP;
10588 if (!info->attrs[NL80211_ATTR_MAC])
10591 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10594 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10600 #define NL80211_FLAG_NEED_WIPHY 0x01
10601 #define NL80211_FLAG_NEED_NETDEV 0x02
10602 #define NL80211_FLAG_NEED_RTNL 0x04
10603 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10604 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10605 NL80211_FLAG_CHECK_NETDEV_UP)
10606 #define NL80211_FLAG_NEED_WDEV 0x10
10607 /* If a netdev is associated, it must be UP, P2P must be started */
10608 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10609 NL80211_FLAG_CHECK_NETDEV_UP)
10610 #define NL80211_FLAG_CLEAR_SKB 0x20
10612 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10613 struct genl_info *info)
10615 struct cfg80211_registered_device *rdev;
10616 struct wireless_dev *wdev;
10617 struct net_device *dev;
10618 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10623 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10624 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10625 if (IS_ERR(rdev)) {
10628 return PTR_ERR(rdev);
10630 info->user_ptr[0] = rdev;
10631 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10632 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10635 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10637 if (IS_ERR(wdev)) {
10640 return PTR_ERR(wdev);
10643 dev = wdev->netdev;
10644 rdev = wiphy_to_rdev(wdev->wiphy);
10646 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10653 info->user_ptr[1] = dev;
10655 info->user_ptr[1] = wdev;
10659 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10660 !netif_running(dev)) {
10667 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10668 if (!wdev->p2p_started) {
10675 info->user_ptr[0] = rdev;
10681 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10682 struct genl_info *info)
10684 if (info->user_ptr[1]) {
10685 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10686 struct wireless_dev *wdev = info->user_ptr[1];
10689 dev_put(wdev->netdev);
10691 dev_put(info->user_ptr[1]);
10695 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10698 /* If needed, clear the netlink message payload from the SKB
10699 * as it might contain key data that shouldn't stick around on
10700 * the heap after the SKB is freed. The netlink message header
10701 * is still needed for further processing, so leave it intact.
10703 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10704 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10706 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10710 static const struct genl_ops nl80211_ops[] = {
10712 .cmd = NL80211_CMD_GET_WIPHY,
10713 .doit = nl80211_get_wiphy,
10714 .dumpit = nl80211_dump_wiphy,
10715 .done = nl80211_dump_wiphy_done,
10716 .policy = nl80211_policy,
10717 /* can be retrieved by unprivileged users */
10718 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10719 NL80211_FLAG_NEED_RTNL,
10722 .cmd = NL80211_CMD_SET_WIPHY,
10723 .doit = nl80211_set_wiphy,
10724 .policy = nl80211_policy,
10725 .flags = GENL_ADMIN_PERM,
10726 .internal_flags = NL80211_FLAG_NEED_RTNL,
10729 .cmd = NL80211_CMD_GET_INTERFACE,
10730 .doit = nl80211_get_interface,
10731 .dumpit = nl80211_dump_interface,
10732 .policy = nl80211_policy,
10733 /* can be retrieved by unprivileged users */
10734 .internal_flags = NL80211_FLAG_NEED_WDEV |
10735 NL80211_FLAG_NEED_RTNL,
10738 .cmd = NL80211_CMD_SET_INTERFACE,
10739 .doit = nl80211_set_interface,
10740 .policy = nl80211_policy,
10741 .flags = GENL_ADMIN_PERM,
10742 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10743 NL80211_FLAG_NEED_RTNL,
10746 .cmd = NL80211_CMD_NEW_INTERFACE,
10747 .doit = nl80211_new_interface,
10748 .policy = nl80211_policy,
10749 .flags = GENL_ADMIN_PERM,
10750 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10751 NL80211_FLAG_NEED_RTNL,
10754 .cmd = NL80211_CMD_DEL_INTERFACE,
10755 .doit = nl80211_del_interface,
10756 .policy = nl80211_policy,
10757 .flags = GENL_ADMIN_PERM,
10758 .internal_flags = NL80211_FLAG_NEED_WDEV |
10759 NL80211_FLAG_NEED_RTNL,
10762 .cmd = NL80211_CMD_GET_KEY,
10763 .doit = nl80211_get_key,
10764 .policy = nl80211_policy,
10765 .flags = GENL_ADMIN_PERM,
10766 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10767 NL80211_FLAG_NEED_RTNL,
10770 .cmd = NL80211_CMD_SET_KEY,
10771 .doit = nl80211_set_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_NEW_KEY,
10780 .doit = nl80211_new_key,
10781 .policy = nl80211_policy,
10782 .flags = GENL_ADMIN_PERM,
10783 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10784 NL80211_FLAG_NEED_RTNL |
10785 NL80211_FLAG_CLEAR_SKB,
10788 .cmd = NL80211_CMD_DEL_KEY,
10789 .doit = nl80211_del_key,
10790 .policy = nl80211_policy,
10791 .flags = GENL_ADMIN_PERM,
10792 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10793 NL80211_FLAG_NEED_RTNL,
10796 .cmd = NL80211_CMD_SET_BEACON,
10797 .policy = nl80211_policy,
10798 .flags = GENL_ADMIN_PERM,
10799 .doit = nl80211_set_beacon,
10800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10801 NL80211_FLAG_NEED_RTNL,
10804 .cmd = NL80211_CMD_START_AP,
10805 .policy = nl80211_policy,
10806 .flags = GENL_ADMIN_PERM,
10807 .doit = nl80211_start_ap,
10808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10809 NL80211_FLAG_NEED_RTNL,
10812 .cmd = NL80211_CMD_STOP_AP,
10813 .policy = nl80211_policy,
10814 .flags = GENL_ADMIN_PERM,
10815 .doit = nl80211_stop_ap,
10816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10817 NL80211_FLAG_NEED_RTNL,
10820 .cmd = NL80211_CMD_GET_STATION,
10821 .doit = nl80211_get_station,
10822 .dumpit = nl80211_dump_station,
10823 .policy = nl80211_policy,
10824 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10825 NL80211_FLAG_NEED_RTNL,
10828 .cmd = NL80211_CMD_SET_STATION,
10829 .doit = nl80211_set_station,
10830 .policy = nl80211_policy,
10831 .flags = GENL_ADMIN_PERM,
10832 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10833 NL80211_FLAG_NEED_RTNL,
10836 .cmd = NL80211_CMD_NEW_STATION,
10837 .doit = nl80211_new_station,
10838 .policy = nl80211_policy,
10839 .flags = GENL_ADMIN_PERM,
10840 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10841 NL80211_FLAG_NEED_RTNL,
10844 .cmd = NL80211_CMD_DEL_STATION,
10845 .doit = nl80211_del_station,
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_MPATH,
10853 .doit = nl80211_get_mpath,
10854 .dumpit = nl80211_dump_mpath,
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_GET_MPP,
10862 .doit = nl80211_get_mpp,
10863 .dumpit = nl80211_dump_mpp,
10864 .policy = nl80211_policy,
10865 .flags = GENL_ADMIN_PERM,
10866 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10867 NL80211_FLAG_NEED_RTNL,
10870 .cmd = NL80211_CMD_SET_MPATH,
10871 .doit = nl80211_set_mpath,
10872 .policy = nl80211_policy,
10873 .flags = GENL_ADMIN_PERM,
10874 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10875 NL80211_FLAG_NEED_RTNL,
10878 .cmd = NL80211_CMD_NEW_MPATH,
10879 .doit = nl80211_new_mpath,
10880 .policy = nl80211_policy,
10881 .flags = GENL_ADMIN_PERM,
10882 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10883 NL80211_FLAG_NEED_RTNL,
10886 .cmd = NL80211_CMD_DEL_MPATH,
10887 .doit = nl80211_del_mpath,
10888 .policy = nl80211_policy,
10889 .flags = GENL_ADMIN_PERM,
10890 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10891 NL80211_FLAG_NEED_RTNL,
10894 .cmd = NL80211_CMD_SET_BSS,
10895 .doit = nl80211_set_bss,
10896 .policy = nl80211_policy,
10897 .flags = GENL_ADMIN_PERM,
10898 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10899 NL80211_FLAG_NEED_RTNL,
10902 .cmd = NL80211_CMD_GET_REG,
10903 .doit = nl80211_get_reg_do,
10904 .dumpit = nl80211_get_reg_dump,
10905 .policy = nl80211_policy,
10906 .internal_flags = NL80211_FLAG_NEED_RTNL,
10907 /* can be retrieved by unprivileged users */
10909 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
10911 .cmd = NL80211_CMD_SET_REG,
10912 .doit = nl80211_set_reg,
10913 .policy = nl80211_policy,
10914 .flags = GENL_ADMIN_PERM,
10915 .internal_flags = NL80211_FLAG_NEED_RTNL,
10919 .cmd = NL80211_CMD_REQ_SET_REG,
10920 .doit = nl80211_req_set_reg,
10921 .policy = nl80211_policy,
10922 .flags = GENL_ADMIN_PERM,
10925 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10926 .doit = nl80211_get_mesh_config,
10927 .policy = nl80211_policy,
10928 /* can be retrieved by unprivileged users */
10929 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10930 NL80211_FLAG_NEED_RTNL,
10933 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10934 .doit = nl80211_update_mesh_config,
10935 .policy = nl80211_policy,
10936 .flags = GENL_ADMIN_PERM,
10937 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10938 NL80211_FLAG_NEED_RTNL,
10941 .cmd = NL80211_CMD_TRIGGER_SCAN,
10942 .doit = nl80211_trigger_scan,
10943 .policy = nl80211_policy,
10944 .flags = GENL_ADMIN_PERM,
10945 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10946 NL80211_FLAG_NEED_RTNL,
10949 .cmd = NL80211_CMD_GET_SCAN,
10950 .policy = nl80211_policy,
10951 .dumpit = nl80211_dump_scan,
10954 .cmd = NL80211_CMD_START_SCHED_SCAN,
10955 .doit = nl80211_start_sched_scan,
10956 .policy = nl80211_policy,
10957 .flags = GENL_ADMIN_PERM,
10958 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10959 NL80211_FLAG_NEED_RTNL,
10962 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10963 .doit = nl80211_stop_sched_scan,
10964 .policy = nl80211_policy,
10965 .flags = GENL_ADMIN_PERM,
10966 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10967 NL80211_FLAG_NEED_RTNL,
10970 .cmd = NL80211_CMD_AUTHENTICATE,
10971 .doit = nl80211_authenticate,
10972 .policy = nl80211_policy,
10973 .flags = GENL_ADMIN_PERM,
10974 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10975 NL80211_FLAG_NEED_RTNL |
10976 NL80211_FLAG_CLEAR_SKB,
10979 .cmd = NL80211_CMD_ASSOCIATE,
10980 .doit = nl80211_associate,
10981 .policy = nl80211_policy,
10982 .flags = GENL_ADMIN_PERM,
10983 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10984 NL80211_FLAG_NEED_RTNL,
10987 .cmd = NL80211_CMD_DEAUTHENTICATE,
10988 .doit = nl80211_deauthenticate,
10989 .policy = nl80211_policy,
10990 .flags = GENL_ADMIN_PERM,
10991 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10992 NL80211_FLAG_NEED_RTNL,
10995 .cmd = NL80211_CMD_DISASSOCIATE,
10996 .doit = nl80211_disassociate,
10997 .policy = nl80211_policy,
10998 .flags = GENL_ADMIN_PERM,
10999 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11000 NL80211_FLAG_NEED_RTNL,
11003 .cmd = NL80211_CMD_JOIN_IBSS,
11004 .doit = nl80211_join_ibss,
11005 .policy = nl80211_policy,
11006 .flags = GENL_ADMIN_PERM,
11007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11008 NL80211_FLAG_NEED_RTNL,
11011 .cmd = NL80211_CMD_LEAVE_IBSS,
11012 .doit = nl80211_leave_ibss,
11013 .policy = nl80211_policy,
11014 .flags = GENL_ADMIN_PERM,
11015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11016 NL80211_FLAG_NEED_RTNL,
11018 #ifdef CONFIG_NL80211_TESTMODE
11020 .cmd = NL80211_CMD_TESTMODE,
11021 .doit = nl80211_testmode_do,
11022 .dumpit = nl80211_testmode_dump,
11023 .policy = nl80211_policy,
11024 .flags = GENL_ADMIN_PERM,
11025 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11026 NL80211_FLAG_NEED_RTNL,
11030 .cmd = NL80211_CMD_CONNECT,
11031 .doit = nl80211_connect,
11032 .policy = nl80211_policy,
11033 .flags = GENL_ADMIN_PERM,
11034 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11035 NL80211_FLAG_NEED_RTNL,
11038 .cmd = NL80211_CMD_DISCONNECT,
11039 .doit = nl80211_disconnect,
11040 .policy = nl80211_policy,
11041 .flags = GENL_ADMIN_PERM,
11042 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11043 NL80211_FLAG_NEED_RTNL,
11046 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11047 .doit = nl80211_wiphy_netns,
11048 .policy = nl80211_policy,
11049 .flags = GENL_ADMIN_PERM,
11050 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11051 NL80211_FLAG_NEED_RTNL,
11054 .cmd = NL80211_CMD_GET_SURVEY,
11055 .policy = nl80211_policy,
11056 .dumpit = nl80211_dump_survey,
11059 .cmd = NL80211_CMD_SET_PMKSA,
11060 .doit = nl80211_setdel_pmksa,
11061 .policy = nl80211_policy,
11062 .flags = GENL_ADMIN_PERM,
11063 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11064 NL80211_FLAG_NEED_RTNL,
11067 .cmd = NL80211_CMD_DEL_PMKSA,
11068 .doit = nl80211_setdel_pmksa,
11069 .policy = nl80211_policy,
11070 .flags = GENL_ADMIN_PERM,
11071 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11072 NL80211_FLAG_NEED_RTNL,
11075 .cmd = NL80211_CMD_FLUSH_PMKSA,
11076 .doit = nl80211_flush_pmksa,
11077 .policy = nl80211_policy,
11078 .flags = GENL_ADMIN_PERM,
11079 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11080 NL80211_FLAG_NEED_RTNL,
11083 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11084 .doit = nl80211_remain_on_channel,
11085 .policy = nl80211_policy,
11086 .flags = GENL_ADMIN_PERM,
11087 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11088 NL80211_FLAG_NEED_RTNL,
11091 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11092 .doit = nl80211_cancel_remain_on_channel,
11093 .policy = nl80211_policy,
11094 .flags = GENL_ADMIN_PERM,
11095 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11096 NL80211_FLAG_NEED_RTNL,
11099 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11100 .doit = nl80211_set_tx_bitrate_mask,
11101 .policy = nl80211_policy,
11102 .flags = GENL_ADMIN_PERM,
11103 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11104 NL80211_FLAG_NEED_RTNL,
11107 .cmd = NL80211_CMD_REGISTER_FRAME,
11108 .doit = nl80211_register_mgmt,
11109 .policy = nl80211_policy,
11110 .flags = GENL_ADMIN_PERM,
11111 .internal_flags = NL80211_FLAG_NEED_WDEV |
11112 NL80211_FLAG_NEED_RTNL,
11115 .cmd = NL80211_CMD_FRAME,
11116 .doit = nl80211_tx_mgmt,
11117 .policy = nl80211_policy,
11118 .flags = GENL_ADMIN_PERM,
11119 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11120 NL80211_FLAG_NEED_RTNL,
11123 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11124 .doit = nl80211_tx_mgmt_cancel_wait,
11125 .policy = nl80211_policy,
11126 .flags = GENL_ADMIN_PERM,
11127 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11128 NL80211_FLAG_NEED_RTNL,
11131 .cmd = NL80211_CMD_SET_POWER_SAVE,
11132 .doit = nl80211_set_power_save,
11133 .policy = nl80211_policy,
11134 .flags = GENL_ADMIN_PERM,
11135 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11136 NL80211_FLAG_NEED_RTNL,
11139 .cmd = NL80211_CMD_GET_POWER_SAVE,
11140 .doit = nl80211_get_power_save,
11141 .policy = nl80211_policy,
11142 /* can be retrieved by unprivileged users */
11143 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11144 NL80211_FLAG_NEED_RTNL,
11147 .cmd = NL80211_CMD_SET_CQM,
11148 .doit = nl80211_set_cqm,
11149 .policy = nl80211_policy,
11150 .flags = GENL_ADMIN_PERM,
11151 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11152 NL80211_FLAG_NEED_RTNL,
11155 .cmd = NL80211_CMD_SET_CHANNEL,
11156 .doit = nl80211_set_channel,
11157 .policy = nl80211_policy,
11158 .flags = GENL_ADMIN_PERM,
11159 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11160 NL80211_FLAG_NEED_RTNL,
11163 .cmd = NL80211_CMD_SET_WDS_PEER,
11164 .doit = nl80211_set_wds_peer,
11165 .policy = nl80211_policy,
11166 .flags = GENL_ADMIN_PERM,
11167 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11168 NL80211_FLAG_NEED_RTNL,
11171 .cmd = NL80211_CMD_JOIN_MESH,
11172 .doit = nl80211_join_mesh,
11173 .policy = nl80211_policy,
11174 .flags = GENL_ADMIN_PERM,
11175 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11176 NL80211_FLAG_NEED_RTNL,
11179 .cmd = NL80211_CMD_LEAVE_MESH,
11180 .doit = nl80211_leave_mesh,
11181 .policy = nl80211_policy,
11182 .flags = GENL_ADMIN_PERM,
11183 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11184 NL80211_FLAG_NEED_RTNL,
11187 .cmd = NL80211_CMD_JOIN_OCB,
11188 .doit = nl80211_join_ocb,
11189 .policy = nl80211_policy,
11190 .flags = GENL_ADMIN_PERM,
11191 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11192 NL80211_FLAG_NEED_RTNL,
11195 .cmd = NL80211_CMD_LEAVE_OCB,
11196 .doit = nl80211_leave_ocb,
11197 .policy = nl80211_policy,
11198 .flags = GENL_ADMIN_PERM,
11199 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11200 NL80211_FLAG_NEED_RTNL,
11204 .cmd = NL80211_CMD_GET_WOWLAN,
11205 .doit = nl80211_get_wowlan,
11206 .policy = nl80211_policy,
11207 /* can be retrieved by unprivileged users */
11208 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11209 NL80211_FLAG_NEED_RTNL,
11212 .cmd = NL80211_CMD_SET_WOWLAN,
11213 .doit = nl80211_set_wowlan,
11214 .policy = nl80211_policy,
11215 .flags = GENL_ADMIN_PERM,
11216 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11217 NL80211_FLAG_NEED_RTNL,
11221 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11222 .doit = nl80211_set_rekey_data,
11223 .policy = nl80211_policy,
11224 .flags = GENL_ADMIN_PERM,
11225 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11226 NL80211_FLAG_NEED_RTNL |
11227 NL80211_FLAG_CLEAR_SKB,
11230 .cmd = NL80211_CMD_TDLS_MGMT,
11231 .doit = nl80211_tdls_mgmt,
11232 .policy = nl80211_policy,
11233 .flags = GENL_ADMIN_PERM,
11234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11235 NL80211_FLAG_NEED_RTNL,
11238 .cmd = NL80211_CMD_TDLS_OPER,
11239 .doit = nl80211_tdls_oper,
11240 .policy = nl80211_policy,
11241 .flags = GENL_ADMIN_PERM,
11242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11243 NL80211_FLAG_NEED_RTNL,
11246 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11247 .doit = nl80211_register_unexpected_frame,
11248 .policy = nl80211_policy,
11249 .flags = GENL_ADMIN_PERM,
11250 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11251 NL80211_FLAG_NEED_RTNL,
11254 .cmd = NL80211_CMD_PROBE_CLIENT,
11255 .doit = nl80211_probe_client,
11256 .policy = nl80211_policy,
11257 .flags = GENL_ADMIN_PERM,
11258 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11259 NL80211_FLAG_NEED_RTNL,
11262 .cmd = NL80211_CMD_REGISTER_BEACONS,
11263 .doit = nl80211_register_beacons,
11264 .policy = nl80211_policy,
11265 .flags = GENL_ADMIN_PERM,
11266 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11267 NL80211_FLAG_NEED_RTNL,
11270 .cmd = NL80211_CMD_SET_NOACK_MAP,
11271 .doit = nl80211_set_noack_map,
11272 .policy = nl80211_policy,
11273 .flags = GENL_ADMIN_PERM,
11274 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11275 NL80211_FLAG_NEED_RTNL,
11278 .cmd = NL80211_CMD_START_P2P_DEVICE,
11279 .doit = nl80211_start_p2p_device,
11280 .policy = nl80211_policy,
11281 .flags = GENL_ADMIN_PERM,
11282 .internal_flags = NL80211_FLAG_NEED_WDEV |
11283 NL80211_FLAG_NEED_RTNL,
11286 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11287 .doit = nl80211_stop_p2p_device,
11288 .policy = nl80211_policy,
11289 .flags = GENL_ADMIN_PERM,
11290 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11291 NL80211_FLAG_NEED_RTNL,
11294 .cmd = NL80211_CMD_SET_MCAST_RATE,
11295 .doit = nl80211_set_mcast_rate,
11296 .policy = nl80211_policy,
11297 .flags = GENL_ADMIN_PERM,
11298 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11299 NL80211_FLAG_NEED_RTNL,
11302 .cmd = NL80211_CMD_SET_MAC_ACL,
11303 .doit = nl80211_set_mac_acl,
11304 .policy = nl80211_policy,
11305 .flags = GENL_ADMIN_PERM,
11306 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11307 NL80211_FLAG_NEED_RTNL,
11310 .cmd = NL80211_CMD_RADAR_DETECT,
11311 .doit = nl80211_start_radar_detection,
11312 .policy = nl80211_policy,
11313 .flags = GENL_ADMIN_PERM,
11314 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11315 NL80211_FLAG_NEED_RTNL,
11318 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11319 .doit = nl80211_get_protocol_features,
11320 .policy = nl80211_policy,
11323 .cmd = NL80211_CMD_UPDATE_FT_IES,
11324 .doit = nl80211_update_ft_ies,
11325 .policy = nl80211_policy,
11326 .flags = GENL_ADMIN_PERM,
11327 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11328 NL80211_FLAG_NEED_RTNL,
11331 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11332 .doit = nl80211_crit_protocol_start,
11333 .policy = nl80211_policy,
11334 .flags = GENL_ADMIN_PERM,
11335 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11336 NL80211_FLAG_NEED_RTNL,
11339 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11340 .doit = nl80211_crit_protocol_stop,
11341 .policy = nl80211_policy,
11342 .flags = GENL_ADMIN_PERM,
11343 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11344 NL80211_FLAG_NEED_RTNL,
11347 .cmd = NL80211_CMD_GET_COALESCE,
11348 .doit = nl80211_get_coalesce,
11349 .policy = nl80211_policy,
11350 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11351 NL80211_FLAG_NEED_RTNL,
11354 .cmd = NL80211_CMD_SET_COALESCE,
11355 .doit = nl80211_set_coalesce,
11356 .policy = nl80211_policy,
11357 .flags = GENL_ADMIN_PERM,
11358 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11359 NL80211_FLAG_NEED_RTNL,
11362 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11363 .doit = nl80211_channel_switch,
11364 .policy = nl80211_policy,
11365 .flags = GENL_ADMIN_PERM,
11366 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11367 NL80211_FLAG_NEED_RTNL,
11370 .cmd = NL80211_CMD_VENDOR,
11371 .doit = nl80211_vendor_cmd,
11372 .dumpit = nl80211_vendor_cmd_dump,
11373 .policy = nl80211_policy,
11374 .flags = GENL_ADMIN_PERM,
11375 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11376 NL80211_FLAG_NEED_RTNL,
11379 .cmd = NL80211_CMD_SET_QOS_MAP,
11380 .doit = nl80211_set_qos_map,
11381 .policy = nl80211_policy,
11382 .flags = GENL_ADMIN_PERM,
11383 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11384 NL80211_FLAG_NEED_RTNL,
11387 .cmd = NL80211_CMD_ADD_TX_TS,
11388 .doit = nl80211_add_tx_ts,
11389 .policy = nl80211_policy,
11390 .flags = GENL_ADMIN_PERM,
11391 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11392 NL80211_FLAG_NEED_RTNL,
11395 .cmd = NL80211_CMD_DEL_TX_TS,
11396 .doit = nl80211_del_tx_ts,
11397 .policy = nl80211_policy,
11398 .flags = GENL_ADMIN_PERM,
11399 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11400 NL80211_FLAG_NEED_RTNL,
11403 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11404 .doit = nl80211_tdls_channel_switch,
11405 .policy = nl80211_policy,
11406 .flags = GENL_ADMIN_PERM,
11407 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11408 NL80211_FLAG_NEED_RTNL,
11411 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11412 .doit = nl80211_tdls_cancel_channel_switch,
11413 .policy = nl80211_policy,
11414 .flags = GENL_ADMIN_PERM,
11415 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11416 NL80211_FLAG_NEED_RTNL,
11420 /* notification functions */
11422 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11423 enum nl80211_commands cmd)
11425 struct sk_buff *msg;
11426 struct nl80211_dump_wiphy_state state = {};
11428 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11429 cmd != NL80211_CMD_DEL_WIPHY);
11431 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11435 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11440 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11441 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11444 static int nl80211_add_scan_req(struct sk_buff *msg,
11445 struct cfg80211_registered_device *rdev)
11447 struct cfg80211_scan_request *req = rdev->scan_req;
11448 struct nlattr *nest;
11454 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11456 goto nla_put_failure;
11457 for (i = 0; i < req->n_ssids; i++) {
11458 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11459 goto nla_put_failure;
11461 nla_nest_end(msg, nest);
11463 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11465 goto nla_put_failure;
11466 for (i = 0; i < req->n_channels; i++) {
11467 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11468 goto nla_put_failure;
11470 nla_nest_end(msg, nest);
11473 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11474 goto nla_put_failure;
11477 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11478 goto nla_put_failure;
11485 static int nl80211_send_scan_msg(struct sk_buff *msg,
11486 struct cfg80211_registered_device *rdev,
11487 struct wireless_dev *wdev,
11488 u32 portid, u32 seq, int flags,
11493 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11497 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11498 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11499 wdev->netdev->ifindex)) ||
11500 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11501 goto nla_put_failure;
11503 /* ignore errors and send incomplete event anyway */
11504 nl80211_add_scan_req(msg, rdev);
11506 genlmsg_end(msg, hdr);
11510 genlmsg_cancel(msg, hdr);
11515 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11516 struct cfg80211_registered_device *rdev,
11517 struct net_device *netdev,
11518 u32 portid, u32 seq, int flags, u32 cmd)
11522 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11526 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11527 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11528 goto nla_put_failure;
11530 genlmsg_end(msg, hdr);
11534 genlmsg_cancel(msg, hdr);
11538 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11539 struct wireless_dev *wdev)
11541 struct sk_buff *msg;
11543 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11547 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11548 NL80211_CMD_TRIGGER_SCAN) < 0) {
11553 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11554 NL80211_MCGRP_SCAN, GFP_KERNEL);
11557 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11558 struct wireless_dev *wdev, bool aborted)
11560 struct sk_buff *msg;
11562 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11566 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11567 aborted ? NL80211_CMD_SCAN_ABORTED :
11568 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11576 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11577 struct sk_buff *msg)
11582 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11583 NL80211_MCGRP_SCAN, GFP_KERNEL);
11586 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11587 struct net_device *netdev)
11589 struct sk_buff *msg;
11591 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11595 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11596 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11601 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11602 NL80211_MCGRP_SCAN, GFP_KERNEL);
11605 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11606 struct net_device *netdev, u32 cmd)
11608 struct sk_buff *msg;
11610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11614 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11619 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11620 NL80211_MCGRP_SCAN, GFP_KERNEL);
11623 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11624 struct regulatory_request *request)
11626 /* Userspace can always count this one always being set */
11627 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11628 goto nla_put_failure;
11630 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11631 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11632 NL80211_REGDOM_TYPE_WORLD))
11633 goto nla_put_failure;
11634 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11635 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11636 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11637 goto nla_put_failure;
11638 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11639 request->intersect) {
11640 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11641 NL80211_REGDOM_TYPE_INTERSECTION))
11642 goto nla_put_failure;
11644 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11645 NL80211_REGDOM_TYPE_COUNTRY) ||
11646 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11648 goto nla_put_failure;
11651 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11652 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11655 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11656 goto nla_put_failure;
11659 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11660 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11661 goto nla_put_failure;
11671 * This can happen on global regulatory changes or device specific settings
11672 * based on custom regulatory domains.
11674 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11675 struct regulatory_request *request)
11677 struct sk_buff *msg;
11680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11684 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11690 if (nl80211_reg_change_event_fill(msg, request) == false)
11691 goto nla_put_failure;
11693 genlmsg_end(msg, hdr);
11696 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11697 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11703 genlmsg_cancel(msg, hdr);
11707 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11708 struct net_device *netdev,
11709 const u8 *buf, size_t len,
11710 enum nl80211_commands cmd, gfp_t gfp,
11713 struct sk_buff *msg;
11716 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11720 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11726 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11727 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11728 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11729 goto nla_put_failure;
11731 if (uapsd_queues >= 0) {
11732 struct nlattr *nla_wmm =
11733 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11735 goto nla_put_failure;
11737 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11739 goto nla_put_failure;
11741 nla_nest_end(msg, nla_wmm);
11744 genlmsg_end(msg, hdr);
11746 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11747 NL80211_MCGRP_MLME, gfp);
11751 genlmsg_cancel(msg, hdr);
11755 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11756 struct net_device *netdev, const u8 *buf,
11757 size_t len, gfp_t gfp)
11759 nl80211_send_mlme_event(rdev, netdev, buf, len,
11760 NL80211_CMD_AUTHENTICATE, gfp, -1);
11763 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11764 struct net_device *netdev, const u8 *buf,
11765 size_t len, gfp_t gfp, int uapsd_queues)
11767 nl80211_send_mlme_event(rdev, netdev, buf, len,
11768 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11771 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11772 struct net_device *netdev, const u8 *buf,
11773 size_t len, gfp_t gfp)
11775 nl80211_send_mlme_event(rdev, netdev, buf, len,
11776 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11779 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11780 struct net_device *netdev, const u8 *buf,
11781 size_t len, gfp_t gfp)
11783 nl80211_send_mlme_event(rdev, netdev, buf, len,
11784 NL80211_CMD_DISASSOCIATE, gfp, -1);
11787 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11790 struct wireless_dev *wdev = dev->ieee80211_ptr;
11791 struct wiphy *wiphy = wdev->wiphy;
11792 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11793 const struct ieee80211_mgmt *mgmt = (void *)buf;
11796 if (WARN_ON(len < 2))
11799 if (ieee80211_is_deauth(mgmt->frame_control))
11800 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11802 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11804 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11805 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11807 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11809 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11810 struct net_device *netdev, int cmd,
11811 const u8 *addr, gfp_t gfp)
11813 struct sk_buff *msg;
11816 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11820 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11826 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11827 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11828 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11829 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11830 goto nla_put_failure;
11832 genlmsg_end(msg, hdr);
11834 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11835 NL80211_MCGRP_MLME, gfp);
11839 genlmsg_cancel(msg, hdr);
11843 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11844 struct net_device *netdev, const u8 *addr,
11847 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11851 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11852 struct net_device *netdev, const u8 *addr,
11855 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11859 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11860 struct net_device *netdev, const u8 *bssid,
11861 const u8 *req_ie, size_t req_ie_len,
11862 const u8 *resp_ie, size_t resp_ie_len,
11863 u16 status, gfp_t gfp)
11865 struct sk_buff *msg;
11868 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11872 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11878 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11879 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11880 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11881 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11883 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11885 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11886 goto nla_put_failure;
11888 genlmsg_end(msg, hdr);
11890 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11891 NL80211_MCGRP_MLME, gfp);
11895 genlmsg_cancel(msg, hdr);
11900 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11901 struct net_device *netdev, const u8 *bssid,
11902 const u8 *req_ie, size_t req_ie_len,
11903 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11905 struct sk_buff *msg;
11908 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11912 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11918 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11919 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11920 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11922 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11924 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11925 goto nla_put_failure;
11927 genlmsg_end(msg, hdr);
11929 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11930 NL80211_MCGRP_MLME, gfp);
11934 genlmsg_cancel(msg, hdr);
11939 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11940 struct net_device *netdev, u16 reason,
11941 const u8 *ie, size_t ie_len, bool from_ap)
11943 struct sk_buff *msg;
11946 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11950 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11956 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11957 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11958 (from_ap && reason &&
11959 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11961 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11962 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11963 goto nla_put_failure;
11965 genlmsg_end(msg, hdr);
11967 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11968 NL80211_MCGRP_MLME, GFP_KERNEL);
11972 genlmsg_cancel(msg, hdr);
11977 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11978 struct net_device *netdev, const u8 *bssid,
11981 struct sk_buff *msg;
11984 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11988 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11994 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11995 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11996 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11997 goto nla_put_failure;
11999 genlmsg_end(msg, hdr);
12001 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12002 NL80211_MCGRP_MLME, gfp);
12006 genlmsg_cancel(msg, hdr);
12010 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12011 const u8* ie, u8 ie_len, gfp_t gfp)
12013 struct wireless_dev *wdev = dev->ieee80211_ptr;
12014 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12015 struct sk_buff *msg;
12018 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12021 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12023 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12027 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12033 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12034 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12035 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12037 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12038 goto nla_put_failure;
12040 genlmsg_end(msg, hdr);
12042 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12043 NL80211_MCGRP_MLME, gfp);
12047 genlmsg_cancel(msg, hdr);
12050 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
12052 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12053 struct net_device *netdev, const u8 *addr,
12054 enum nl80211_key_type key_type, int key_id,
12055 const u8 *tsc, gfp_t gfp)
12057 struct sk_buff *msg;
12060 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12064 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12070 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12071 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12072 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12073 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12075 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12076 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12077 goto nla_put_failure;
12079 genlmsg_end(msg, hdr);
12081 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12082 NL80211_MCGRP_MLME, gfp);
12086 genlmsg_cancel(msg, hdr);
12090 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12091 struct ieee80211_channel *channel_before,
12092 struct ieee80211_channel *channel_after)
12094 struct sk_buff *msg;
12096 struct nlattr *nl_freq;
12098 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
12102 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12109 * Since we are applying the beacon hint to a wiphy we know its
12110 * wiphy_idx is valid
12112 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12113 goto nla_put_failure;
12116 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12118 goto nla_put_failure;
12119 if (nl80211_msg_put_channel(msg, channel_before, false))
12120 goto nla_put_failure;
12121 nla_nest_end(msg, nl_freq);
12124 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12126 goto nla_put_failure;
12127 if (nl80211_msg_put_channel(msg, channel_after, false))
12128 goto nla_put_failure;
12129 nla_nest_end(msg, nl_freq);
12131 genlmsg_end(msg, hdr);
12134 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12135 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12141 genlmsg_cancel(msg, hdr);
12145 static void nl80211_send_remain_on_chan_event(
12146 int cmd, struct cfg80211_registered_device *rdev,
12147 struct wireless_dev *wdev, u64 cookie,
12148 struct ieee80211_channel *chan,
12149 unsigned int duration, gfp_t gfp)
12151 struct sk_buff *msg;
12154 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12158 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12164 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12165 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12166 wdev->netdev->ifindex)) ||
12167 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12168 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
12169 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12170 NL80211_CHAN_NO_HT) ||
12171 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12172 goto nla_put_failure;
12174 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12175 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12176 goto nla_put_failure;
12178 genlmsg_end(msg, hdr);
12180 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12181 NL80211_MCGRP_MLME, gfp);
12185 genlmsg_cancel(msg, hdr);
12189 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12190 struct ieee80211_channel *chan,
12191 unsigned int duration, gfp_t gfp)
12193 struct wiphy *wiphy = wdev->wiphy;
12194 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12196 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
12197 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
12198 rdev, wdev, cookie, chan,
12201 EXPORT_SYMBOL(cfg80211_ready_on_channel);
12203 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12204 struct ieee80211_channel *chan,
12207 struct wiphy *wiphy = wdev->wiphy;
12208 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12210 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
12211 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12212 rdev, wdev, cookie, chan, 0, gfp);
12214 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
12216 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12217 struct station_info *sinfo, gfp_t gfp)
12219 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12220 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12221 struct sk_buff *msg;
12223 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12225 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12229 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
12230 rdev, dev, mac_addr, sinfo) < 0) {
12235 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12236 NL80211_MCGRP_MLME, gfp);
12238 EXPORT_SYMBOL(cfg80211_new_sta);
12240 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12241 struct station_info *sinfo, gfp_t gfp)
12243 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12244 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12245 struct sk_buff *msg;
12246 struct station_info empty_sinfo = {};
12249 sinfo = &empty_sinfo;
12251 trace_cfg80211_del_sta(dev, mac_addr);
12253 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12257 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
12258 rdev, dev, mac_addr, sinfo) < 0) {
12263 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12264 NL80211_MCGRP_MLME, gfp);
12266 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
12268 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12269 enum nl80211_connect_failed_reason reason,
12272 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12273 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12274 struct sk_buff *msg;
12277 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12281 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12287 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12288 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12289 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12290 goto nla_put_failure;
12292 genlmsg_end(msg, hdr);
12294 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12295 NL80211_MCGRP_MLME, gfp);
12299 genlmsg_cancel(msg, hdr);
12302 EXPORT_SYMBOL(cfg80211_conn_failed);
12304 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12305 const u8 *addr, gfp_t gfp)
12307 struct wireless_dev *wdev = dev->ieee80211_ptr;
12308 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12309 struct sk_buff *msg;
12311 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
12316 msg = nlmsg_new(100, gfp);
12320 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12326 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12327 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12328 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12329 goto nla_put_failure;
12331 genlmsg_end(msg, hdr);
12332 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12336 genlmsg_cancel(msg, hdr);
12341 bool cfg80211_rx_spurious_frame(struct net_device *dev,
12342 const u8 *addr, gfp_t gfp)
12344 struct wireless_dev *wdev = dev->ieee80211_ptr;
12347 trace_cfg80211_rx_spurious_frame(dev, addr);
12349 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12350 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12351 trace_cfg80211_return_bool(false);
12354 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12356 trace_cfg80211_return_bool(ret);
12359 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
12361 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12362 const u8 *addr, gfp_t gfp)
12364 struct wireless_dev *wdev = dev->ieee80211_ptr;
12367 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12369 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12370 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12371 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12372 trace_cfg80211_return_bool(false);
12375 ret = __nl80211_unexpected_frame(dev,
12376 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12378 trace_cfg80211_return_bool(ret);
12381 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12383 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12384 struct wireless_dev *wdev, u32 nlportid,
12385 int freq, int sig_dbm,
12386 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12388 struct net_device *netdev = wdev->netdev;
12389 struct sk_buff *msg;
12392 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12396 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12402 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12403 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12404 netdev->ifindex)) ||
12405 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12406 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12408 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12409 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12411 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12412 goto nla_put_failure;
12414 genlmsg_end(msg, hdr);
12416 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12419 genlmsg_cancel(msg, hdr);
12424 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12425 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12427 struct wiphy *wiphy = wdev->wiphy;
12428 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12429 struct net_device *netdev = wdev->netdev;
12430 struct sk_buff *msg;
12433 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12446 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12447 netdev->ifindex)) ||
12448 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12449 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12450 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12451 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12452 goto nla_put_failure;
12454 genlmsg_end(msg, hdr);
12456 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12457 NL80211_MCGRP_MLME, gfp);
12461 genlmsg_cancel(msg, hdr);
12464 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12466 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12467 const char *mac, gfp_t gfp)
12469 struct wireless_dev *wdev = dev->ieee80211_ptr;
12470 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12471 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12477 cb = (void **)msg->cb;
12479 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12485 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12486 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12487 goto nla_put_failure;
12489 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12490 goto nla_put_failure;
12492 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12494 goto nla_put_failure;
12504 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12506 void **cb = (void **)msg->cb;
12507 struct cfg80211_registered_device *rdev = cb[2];
12509 nla_nest_end(msg, cb[1]);
12510 genlmsg_end(msg, cb[0]);
12512 memset(msg->cb, 0, sizeof(msg->cb));
12514 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12515 NL80211_MCGRP_MLME, gfp);
12518 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12519 enum nl80211_cqm_rssi_threshold_event rssi_event,
12522 struct sk_buff *msg;
12524 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12526 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12527 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12530 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12534 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12536 goto nla_put_failure;
12538 cfg80211_send_cqm(msg, gfp);
12545 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12547 void cfg80211_cqm_txe_notify(struct net_device *dev,
12548 const u8 *peer, u32 num_packets,
12549 u32 rate, u32 intvl, gfp_t gfp)
12551 struct sk_buff *msg;
12553 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12557 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12558 goto nla_put_failure;
12560 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12561 goto nla_put_failure;
12563 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12564 goto nla_put_failure;
12566 cfg80211_send_cqm(msg, gfp);
12572 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12574 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12575 const u8 *peer, u32 num_packets, gfp_t gfp)
12577 struct sk_buff *msg;
12579 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12581 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12585 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12586 goto nla_put_failure;
12588 cfg80211_send_cqm(msg, gfp);
12594 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12596 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12598 struct sk_buff *msg;
12600 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12604 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12605 goto nla_put_failure;
12607 cfg80211_send_cqm(msg, gfp);
12613 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12615 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12616 struct net_device *netdev, const u8 *bssid,
12617 const u8 *replay_ctr, gfp_t gfp)
12619 struct sk_buff *msg;
12620 struct nlattr *rekey_attr;
12623 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12627 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12633 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12634 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12635 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12636 goto nla_put_failure;
12638 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12640 goto nla_put_failure;
12642 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12643 NL80211_REPLAY_CTR_LEN, replay_ctr))
12644 goto nla_put_failure;
12646 nla_nest_end(msg, rekey_attr);
12648 genlmsg_end(msg, hdr);
12650 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12651 NL80211_MCGRP_MLME, gfp);
12655 genlmsg_cancel(msg, hdr);
12659 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12660 const u8 *replay_ctr, gfp_t gfp)
12662 struct wireless_dev *wdev = dev->ieee80211_ptr;
12663 struct wiphy *wiphy = wdev->wiphy;
12664 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12666 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12667 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12669 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12672 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12673 struct net_device *netdev, int index,
12674 const u8 *bssid, bool preauth, gfp_t gfp)
12676 struct sk_buff *msg;
12677 struct nlattr *attr;
12680 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12684 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12690 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12691 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12692 goto nla_put_failure;
12694 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12696 goto nla_put_failure;
12698 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12699 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12701 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12702 goto nla_put_failure;
12704 nla_nest_end(msg, attr);
12706 genlmsg_end(msg, hdr);
12708 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12709 NL80211_MCGRP_MLME, gfp);
12713 genlmsg_cancel(msg, hdr);
12717 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12718 const u8 *bssid, bool preauth, gfp_t gfp)
12720 struct wireless_dev *wdev = dev->ieee80211_ptr;
12721 struct wiphy *wiphy = wdev->wiphy;
12722 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12724 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12725 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12727 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12729 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12730 struct net_device *netdev,
12731 struct cfg80211_chan_def *chandef,
12733 enum nl80211_commands notif,
12736 struct sk_buff *msg;
12739 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12743 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12749 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12750 goto nla_put_failure;
12752 if (nl80211_send_chandef(msg, chandef))
12753 goto nla_put_failure;
12755 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12756 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12757 goto nla_put_failure;
12759 genlmsg_end(msg, hdr);
12761 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12762 NL80211_MCGRP_MLME, gfp);
12766 genlmsg_cancel(msg, hdr);
12770 void cfg80211_ch_switch_notify(struct net_device *dev,
12771 struct cfg80211_chan_def *chandef)
12773 struct wireless_dev *wdev = dev->ieee80211_ptr;
12774 struct wiphy *wiphy = wdev->wiphy;
12775 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12777 ASSERT_WDEV_LOCK(wdev);
12779 trace_cfg80211_ch_switch_notify(dev, chandef);
12781 wdev->chandef = *chandef;
12782 wdev->preset_chandef = *chandef;
12783 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12784 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12786 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12788 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12789 struct cfg80211_chan_def *chandef,
12792 struct wireless_dev *wdev = dev->ieee80211_ptr;
12793 struct wiphy *wiphy = wdev->wiphy;
12794 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12796 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12798 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12799 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12801 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12804 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12805 const struct cfg80211_chan_def *chandef,
12806 enum nl80211_radar_event event,
12807 struct net_device *netdev, gfp_t gfp)
12809 struct sk_buff *msg;
12812 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12816 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12822 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12823 goto nla_put_failure;
12825 /* NOP and radar events don't need a netdev parameter */
12827 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12829 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12830 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12831 goto nla_put_failure;
12834 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12835 goto nla_put_failure;
12837 if (nl80211_send_chandef(msg, chandef))
12838 goto nla_put_failure;
12840 genlmsg_end(msg, hdr);
12842 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12843 NL80211_MCGRP_MLME, gfp);
12847 genlmsg_cancel(msg, hdr);
12851 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12852 u64 cookie, bool acked, gfp_t gfp)
12854 struct wireless_dev *wdev = dev->ieee80211_ptr;
12855 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12856 struct sk_buff *msg;
12859 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12861 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12866 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12872 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12873 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12874 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12875 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12876 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12877 goto nla_put_failure;
12879 genlmsg_end(msg, hdr);
12881 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12882 NL80211_MCGRP_MLME, gfp);
12886 genlmsg_cancel(msg, hdr);
12889 EXPORT_SYMBOL(cfg80211_probe_status);
12891 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12892 const u8 *frame, size_t len,
12893 int freq, int sig_dbm)
12895 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12896 struct sk_buff *msg;
12898 struct cfg80211_beacon_registration *reg;
12900 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12902 spin_lock_bh(&rdev->beacon_registrations_lock);
12903 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12904 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12906 spin_unlock_bh(&rdev->beacon_registrations_lock);
12910 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12912 goto nla_put_failure;
12914 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12916 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12918 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12919 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12920 goto nla_put_failure;
12922 genlmsg_end(msg, hdr);
12924 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12926 spin_unlock_bh(&rdev->beacon_registrations_lock);
12930 spin_unlock_bh(&rdev->beacon_registrations_lock);
12932 genlmsg_cancel(msg, hdr);
12935 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12938 static int cfg80211_net_detect_results(struct sk_buff *msg,
12939 struct cfg80211_wowlan_wakeup *wakeup)
12941 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12942 struct nlattr *nl_results, *nl_match, *nl_freqs;
12945 nl_results = nla_nest_start(
12946 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12950 for (i = 0; i < nd->n_matches; i++) {
12951 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12953 nl_match = nla_nest_start(msg, i);
12957 /* The SSID attribute is optional in nl80211, but for
12958 * simplicity reasons it's always present in the
12959 * cfg80211 structure. If a driver can't pass the
12960 * SSID, that needs to be changed. A zero length SSID
12961 * is still a valid SSID (wildcard), so it cannot be
12962 * used for this purpose.
12964 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12965 match->ssid.ssid)) {
12966 nla_nest_cancel(msg, nl_match);
12970 if (match->n_channels) {
12971 nl_freqs = nla_nest_start(
12972 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12974 nla_nest_cancel(msg, nl_match);
12978 for (j = 0; j < match->n_channels; j++) {
12979 if (nla_put_u32(msg, j, match->channels[j])) {
12980 nla_nest_cancel(msg, nl_freqs);
12981 nla_nest_cancel(msg, nl_match);
12986 nla_nest_end(msg, nl_freqs);
12989 nla_nest_end(msg, nl_match);
12993 nla_nest_end(msg, nl_results);
12997 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12998 struct cfg80211_wowlan_wakeup *wakeup,
13001 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13002 struct sk_buff *msg;
13006 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13009 size += wakeup->packet_present_len;
13011 msg = nlmsg_new(size, gfp);
13015 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13019 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13020 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13023 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13024 wdev->netdev->ifindex))
13028 struct nlattr *reasons;
13030 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
13034 if (wakeup->disconnect &&
13035 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13037 if (wakeup->magic_pkt &&
13038 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13040 if (wakeup->gtk_rekey_failure &&
13041 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13043 if (wakeup->eap_identity_req &&
13044 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13046 if (wakeup->four_way_handshake &&
13047 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13049 if (wakeup->rfkill_release &&
13050 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13053 if (wakeup->pattern_idx >= 0 &&
13054 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13055 wakeup->pattern_idx))
13058 if (wakeup->tcp_match &&
13059 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13062 if (wakeup->tcp_connlost &&
13063 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13066 if (wakeup->tcp_nomoretokens &&
13068 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13071 if (wakeup->packet) {
13072 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13073 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13075 if (!wakeup->packet_80211) {
13077 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13079 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13082 if (wakeup->packet_len &&
13083 nla_put_u32(msg, len_attr, wakeup->packet_len))
13086 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13091 if (wakeup->net_detect &&
13092 cfg80211_net_detect_results(msg, wakeup))
13095 nla_nest_end(msg, reasons);
13098 genlmsg_end(msg, hdr);
13100 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13101 NL80211_MCGRP_MLME, gfp);
13107 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13110 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13111 enum nl80211_tdls_operation oper,
13112 u16 reason_code, gfp_t gfp)
13114 struct wireless_dev *wdev = dev->ieee80211_ptr;
13115 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13116 struct sk_buff *msg;
13119 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13122 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13126 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13132 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13133 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13134 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13135 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13136 (reason_code > 0 &&
13137 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13138 goto nla_put_failure;
13140 genlmsg_end(msg, hdr);
13142 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13143 NL80211_MCGRP_MLME, gfp);
13147 genlmsg_cancel(msg, hdr);
13150 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13152 static int nl80211_netlink_notify(struct notifier_block * nb,
13153 unsigned long state,
13156 struct netlink_notify *notify = _notify;
13157 struct cfg80211_registered_device *rdev;
13158 struct wireless_dev *wdev;
13159 struct cfg80211_beacon_registration *reg, *tmp;
13161 if (state != NETLINK_URELEASE)
13162 return NOTIFY_DONE;
13166 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
13167 bool schedule_destroy_work = false;
13168 bool schedule_scan_stop = false;
13169 struct cfg80211_sched_scan_request *sched_scan_req =
13170 rcu_dereference(rdev->sched_scan_req);
13172 if (sched_scan_req && notify->portid &&
13173 sched_scan_req->owner_nlportid == notify->portid)
13174 schedule_scan_stop = true;
13176 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
13177 cfg80211_mlme_unregister_socket(wdev, notify->portid);
13179 if (wdev->owner_nlportid == notify->portid)
13180 schedule_destroy_work = true;
13183 spin_lock_bh(&rdev->beacon_registrations_lock);
13184 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13186 if (reg->nlportid == notify->portid) {
13187 list_del(®->list);
13192 spin_unlock_bh(&rdev->beacon_registrations_lock);
13194 if (schedule_destroy_work) {
13195 struct cfg80211_iface_destroy *destroy;
13197 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13199 destroy->nlportid = notify->portid;
13200 spin_lock(&rdev->destroy_list_lock);
13201 list_add(&destroy->list, &rdev->destroy_list);
13202 spin_unlock(&rdev->destroy_list_lock);
13203 schedule_work(&rdev->destroy_work);
13205 } else if (schedule_scan_stop) {
13206 sched_scan_req->owner_nlportid = 0;
13208 if (rdev->ops->sched_scan_stop &&
13209 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13210 schedule_work(&rdev->sched_scan_stop_wk);
13217 * It is possible that the user space process that is controlling the
13218 * indoor setting disappeared, so notify the regulatory core.
13220 regulatory_netlink_notify(notify->portid);
13224 static struct notifier_block nl80211_netlink_notifier = {
13225 .notifier_call = nl80211_netlink_notify,
13228 void cfg80211_ft_event(struct net_device *netdev,
13229 struct cfg80211_ft_event_params *ft_event)
13231 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
13232 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13233 struct sk_buff *msg;
13236 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13238 if (!ft_event->target_ap)
13241 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13245 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
13249 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13250 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13251 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13254 if (ft_event->ies &&
13255 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13257 if (ft_event->ric_ies &&
13258 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13259 ft_event->ric_ies))
13262 genlmsg_end(msg, hdr);
13264 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13265 NL80211_MCGRP_MLME, GFP_KERNEL);
13270 EXPORT_SYMBOL(cfg80211_ft_event);
13272 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13274 struct cfg80211_registered_device *rdev;
13275 struct sk_buff *msg;
13279 rdev = wiphy_to_rdev(wdev->wiphy);
13280 if (!rdev->crit_proto_nlportid)
13283 nlportid = rdev->crit_proto_nlportid;
13284 rdev->crit_proto_nlportid = 0;
13286 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13290 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13292 goto nla_put_failure;
13294 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13295 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13296 goto nla_put_failure;
13298 genlmsg_end(msg, hdr);
13300 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13305 genlmsg_cancel(msg, hdr);
13309 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13311 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13313 struct wiphy *wiphy = wdev->wiphy;
13314 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13315 struct sk_buff *msg;
13318 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13322 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13326 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13327 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13328 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13331 genlmsg_end(msg, hdr);
13333 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13334 NL80211_MCGRP_MLME, GFP_KERNEL);
13340 /* initialisation/exit functions */
13342 int nl80211_init(void)
13346 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13351 err = netlink_register_notifier(&nl80211_netlink_notifier);
13357 genl_unregister_family(&nl80211_fam);
13361 void nl80211_exit(void)
13363 netlink_unregister_notifier(&nl80211_netlink_notifier);
13364 genl_unregister_family(&nl80211_fam);