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 },
404 [NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
407 /* policy for the key attributes */
408 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
409 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
410 [NL80211_KEY_IDX] = { .type = NLA_U8 },
411 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
412 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
413 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
414 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
415 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
416 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
419 /* policy for the key default flags */
420 static const struct nla_policy
421 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
422 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
423 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
426 /* policy for WoWLAN attributes */
427 static const struct nla_policy
428 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
429 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
433 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
437 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
438 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
441 static const struct nla_policy
442 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
443 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
444 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
445 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
446 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
447 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
448 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
449 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
450 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
452 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
453 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
455 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
456 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
457 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
460 /* policy for coalesce rule attributes */
461 static const struct nla_policy
462 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
463 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
464 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
465 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
468 /* policy for GTK rekey offload attributes */
469 static const struct nla_policy
470 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
471 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
472 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
473 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
476 static const struct nla_policy
477 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
478 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
479 .len = IEEE80211_MAX_SSID_LEN },
480 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
483 static const struct nla_policy
484 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
485 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
486 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
489 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
490 struct netlink_callback *cb,
491 struct cfg80211_registered_device **rdev,
492 struct wireless_dev **wdev)
499 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
500 nl80211_fam.attrbuf, nl80211_fam.maxattr,
505 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
506 nl80211_fam.attrbuf);
508 err = PTR_ERR(*wdev);
511 *rdev = wiphy_to_rdev((*wdev)->wiphy);
512 /* 0 is the first index - add 1 to parse only once */
513 cb->args[0] = (*rdev)->wiphy_idx + 1;
514 cb->args[1] = (*wdev)->identifier;
516 /* subtract the 1 again here */
517 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
518 struct wireless_dev *tmp;
524 *rdev = wiphy_to_rdev(wiphy);
527 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
528 if (tmp->identifier == cb->args[1]) {
546 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
552 static bool is_valid_ie_attr(const struct nlattr *attr)
560 pos = nla_data(attr);
581 /* message building helper */
582 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
585 /* since there is no private header just add the generic one */
586 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
589 static int nl80211_msg_put_channel(struct sk_buff *msg,
590 struct ieee80211_channel *chan,
593 /* Some channels must be completely excluded from the
594 * list to protect old user-space tools from breaking
596 if (!large && chan->flags &
597 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
600 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
602 goto nla_put_failure;
604 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
605 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
606 goto nla_put_failure;
607 if (chan->flags & IEEE80211_CHAN_NO_IR) {
608 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
609 goto nla_put_failure;
610 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
611 goto nla_put_failure;
613 if (chan->flags & IEEE80211_CHAN_RADAR) {
614 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
615 goto nla_put_failure;
619 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
621 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
623 goto nla_put_failure;
624 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
626 goto nla_put_failure;
628 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
630 goto nla_put_failure;
635 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
636 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
637 goto nla_put_failure;
638 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
639 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
640 goto nla_put_failure;
641 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
642 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
643 goto nla_put_failure;
644 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
645 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
646 goto nla_put_failure;
647 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
648 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
649 goto nla_put_failure;
650 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
651 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
652 goto nla_put_failure;
653 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
654 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
655 goto nla_put_failure;
656 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
657 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
658 goto nla_put_failure;
661 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
662 DBM_TO_MBM(chan->max_power)))
663 goto nla_put_failure;
671 /* netlink command implementations */
678 bool def_uni, def_multi;
681 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
683 struct nlattr *tb[NL80211_KEY_MAX + 1];
684 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
689 k->def = !!tb[NL80211_KEY_DEFAULT];
690 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
699 if (tb[NL80211_KEY_IDX])
700 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
702 if (tb[NL80211_KEY_DATA]) {
703 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
704 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
707 if (tb[NL80211_KEY_SEQ]) {
708 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
709 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
712 if (tb[NL80211_KEY_CIPHER])
713 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
715 if (tb[NL80211_KEY_TYPE]) {
716 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
717 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
721 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
722 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
723 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
724 tb[NL80211_KEY_DEFAULT_TYPES],
725 nl80211_key_default_policy);
729 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
730 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
736 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
738 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
739 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
740 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
743 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
744 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
745 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
748 if (info->attrs[NL80211_ATTR_KEY_IDX])
749 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
751 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
752 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
754 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
755 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
764 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
765 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
766 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
770 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
771 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
772 int err = nla_parse_nested(
773 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
774 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
775 nl80211_key_default_policy);
779 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
780 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
786 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
790 memset(k, 0, sizeof(*k));
794 if (info->attrs[NL80211_ATTR_KEY])
795 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
797 err = nl80211_parse_key_old(info, k);
802 if (k->def && k->defmgmt)
806 if (k->def_uni || !k->def_multi)
812 if (k->idx < 4 || k->idx > 5)
815 if (k->idx < 0 || k->idx > 3)
818 if (k->idx < 0 || k->idx > 5)
826 static struct cfg80211_cached_keys *
827 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
828 struct nlattr *keys, bool *no_ht)
830 struct key_parse parse;
832 struct cfg80211_cached_keys *result;
833 int rem, err, def = 0;
835 result = kzalloc(sizeof(*result), GFP_KERNEL);
837 return ERR_PTR(-ENOMEM);
840 result->defmgmt = -1;
842 nla_for_each_nested(key, keys, rem) {
843 memset(&parse, 0, sizeof(parse));
846 err = nl80211_parse_key_new(key, &parse);
852 if (parse.idx < 0 || parse.idx > 4)
858 result->def = parse.idx;
859 if (!parse.def_uni || !parse.def_multi)
861 } else if (parse.defmgmt)
863 err = cfg80211_validate_key_settings(rdev, &parse.p,
864 parse.idx, false, NULL);
867 result->params[parse.idx].cipher = parse.p.cipher;
868 result->params[parse.idx].key_len = parse.p.key_len;
869 result->params[parse.idx].key = result->data[parse.idx];
870 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
872 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
873 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
885 static int nl80211_key_allowed(struct wireless_dev *wdev)
887 ASSERT_WDEV_LOCK(wdev);
889 switch (wdev->iftype) {
890 case NL80211_IFTYPE_AP:
891 case NL80211_IFTYPE_AP_VLAN:
892 case NL80211_IFTYPE_P2P_GO:
893 case NL80211_IFTYPE_MESH_POINT:
895 case NL80211_IFTYPE_ADHOC:
896 case NL80211_IFTYPE_STATION:
897 case NL80211_IFTYPE_P2P_CLIENT:
898 if (!wdev->current_bss)
901 case NL80211_IFTYPE_UNSPECIFIED:
902 case NL80211_IFTYPE_OCB:
903 case NL80211_IFTYPE_MONITOR:
904 case NL80211_IFTYPE_P2P_DEVICE:
905 case NL80211_IFTYPE_WDS:
906 case NUM_NL80211_IFTYPES:
913 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
916 struct ieee80211_channel *chan;
920 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
921 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
926 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
928 struct nlattr *nl_modes = nla_nest_start(msg, attr);
932 goto nla_put_failure;
936 if ((ifmodes & 1) && nla_put_flag(msg, i))
937 goto nla_put_failure;
942 nla_nest_end(msg, nl_modes);
949 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
953 struct nlattr *nl_combis;
956 nl_combis = nla_nest_start(msg,
957 NL80211_ATTR_INTERFACE_COMBINATIONS);
959 goto nla_put_failure;
961 for (i = 0; i < wiphy->n_iface_combinations; i++) {
962 const struct ieee80211_iface_combination *c;
963 struct nlattr *nl_combi, *nl_limits;
965 c = &wiphy->iface_combinations[i];
967 nl_combi = nla_nest_start(msg, i + 1);
969 goto nla_put_failure;
971 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
973 goto nla_put_failure;
975 for (j = 0; j < c->n_limits; j++) {
976 struct nlattr *nl_limit;
978 nl_limit = nla_nest_start(msg, j + 1);
980 goto nla_put_failure;
981 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
983 goto nla_put_failure;
984 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
986 goto nla_put_failure;
987 nla_nest_end(msg, nl_limit);
990 nla_nest_end(msg, nl_limits);
992 if (c->beacon_int_infra_match &&
993 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
994 goto nla_put_failure;
995 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
996 c->num_different_channels) ||
997 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
999 goto nla_put_failure;
1001 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1002 c->radar_detect_widths) ||
1003 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1004 c->radar_detect_regions)))
1005 goto nla_put_failure;
1007 nla_nest_end(msg, nl_combi);
1010 nla_nest_end(msg, nl_combis);
1018 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1019 struct sk_buff *msg)
1021 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1022 struct nlattr *nl_tcp;
1027 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1031 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1032 tcp->data_payload_max))
1035 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1036 tcp->data_payload_max))
1039 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1042 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1043 sizeof(*tcp->tok), tcp->tok))
1046 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1047 tcp->data_interval_max))
1050 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1051 tcp->wake_payload_max))
1054 nla_nest_end(msg, nl_tcp);
1058 static int nl80211_send_wowlan(struct sk_buff *msg,
1059 struct cfg80211_registered_device *rdev,
1062 struct nlattr *nl_wowlan;
1064 if (!rdev->wiphy.wowlan)
1067 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1071 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1075 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1076 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1077 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1079 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1080 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1081 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1082 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1083 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1084 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1085 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1086 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1089 if (rdev->wiphy.wowlan->n_patterns) {
1090 struct nl80211_pattern_support pat = {
1091 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1092 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1093 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1094 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1097 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1102 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1103 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1104 rdev->wiphy.wowlan->max_nd_match_sets))
1107 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1110 nla_nest_end(msg, nl_wowlan);
1116 static int nl80211_send_coalesce(struct sk_buff *msg,
1117 struct cfg80211_registered_device *rdev)
1119 struct nl80211_coalesce_rule_support rule;
1121 if (!rdev->wiphy.coalesce)
1124 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1125 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1126 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1127 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1128 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1129 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1131 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1137 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1138 struct ieee80211_supported_band *sband)
1140 struct nlattr *nl_rates, *nl_rate;
1141 struct ieee80211_rate *rate;
1145 if (sband->ht_cap.ht_supported &&
1146 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1147 sizeof(sband->ht_cap.mcs),
1148 &sband->ht_cap.mcs) ||
1149 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1150 sband->ht_cap.cap) ||
1151 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1152 sband->ht_cap.ampdu_factor) ||
1153 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1154 sband->ht_cap.ampdu_density)))
1158 if (sband->vht_cap.vht_supported &&
1159 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1160 sizeof(sband->vht_cap.vht_mcs),
1161 &sband->vht_cap.vht_mcs) ||
1162 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1163 sband->vht_cap.cap)))
1167 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1171 for (i = 0; i < sband->n_bitrates; i++) {
1172 nl_rate = nla_nest_start(msg, i);
1176 rate = &sband->bitrates[i];
1177 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1180 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1182 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1185 nla_nest_end(msg, nl_rate);
1188 nla_nest_end(msg, nl_rates);
1194 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1195 const struct ieee80211_txrx_stypes *mgmt_stypes)
1198 struct nlattr *nl_ftypes, *nl_ifs;
1199 enum nl80211_iftype ift;
1205 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1209 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1210 nl_ftypes = nla_nest_start(msg, ift);
1214 stypes = mgmt_stypes[ift].tx;
1217 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1218 (i << 4) | IEEE80211_FTYPE_MGMT))
1223 nla_nest_end(msg, nl_ftypes);
1226 nla_nest_end(msg, nl_ifs);
1228 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1232 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1233 nl_ftypes = nla_nest_start(msg, ift);
1237 stypes = mgmt_stypes[ift].rx;
1240 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1241 (i << 4) | IEEE80211_FTYPE_MGMT))
1246 nla_nest_end(msg, nl_ftypes);
1248 nla_nest_end(msg, nl_ifs);
1253 struct nl80211_dump_wiphy_state {
1256 long split_start, band_start, chan_start;
1260 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1261 enum nl80211_commands cmd,
1262 struct sk_buff *msg, u32 portid, u32 seq,
1263 int flags, struct nl80211_dump_wiphy_state *state)
1266 struct nlattr *nl_bands, *nl_band;
1267 struct nlattr *nl_freqs, *nl_freq;
1268 struct nlattr *nl_cmds;
1269 enum ieee80211_band band;
1270 struct ieee80211_channel *chan;
1272 const struct ieee80211_txrx_stypes *mgmt_stypes =
1273 rdev->wiphy.mgmt_stypes;
1276 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1280 if (WARN_ON(!state))
1283 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1284 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1285 wiphy_name(&rdev->wiphy)) ||
1286 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1287 cfg80211_rdev_list_generation))
1288 goto nla_put_failure;
1290 if (cmd != NL80211_CMD_NEW_WIPHY)
1293 switch (state->split_start) {
1295 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1296 rdev->wiphy.retry_short) ||
1297 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1298 rdev->wiphy.retry_long) ||
1299 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1300 rdev->wiphy.frag_threshold) ||
1301 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1302 rdev->wiphy.rts_threshold) ||
1303 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1304 rdev->wiphy.coverage_class) ||
1305 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1306 rdev->wiphy.max_scan_ssids) ||
1307 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1308 rdev->wiphy.max_sched_scan_ssids) ||
1309 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1310 rdev->wiphy.max_scan_ie_len) ||
1311 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1312 rdev->wiphy.max_sched_scan_ie_len) ||
1313 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1314 rdev->wiphy.max_match_sets) ||
1315 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1316 rdev->wiphy.max_sched_scan_plans) ||
1317 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1318 rdev->wiphy.max_sched_scan_plan_interval) ||
1319 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1320 rdev->wiphy.max_sched_scan_plan_iterations))
1321 goto nla_put_failure;
1323 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1324 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1325 goto nla_put_failure;
1326 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1327 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1328 goto nla_put_failure;
1329 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1330 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1331 goto nla_put_failure;
1332 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1333 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1334 goto nla_put_failure;
1335 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1336 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1337 goto nla_put_failure;
1338 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1339 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1340 goto nla_put_failure;
1341 state->split_start++;
1345 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1346 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1347 rdev->wiphy.cipher_suites))
1348 goto nla_put_failure;
1350 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1351 rdev->wiphy.max_num_pmkids))
1352 goto nla_put_failure;
1354 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1355 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1356 goto nla_put_failure;
1358 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1359 rdev->wiphy.available_antennas_tx) ||
1360 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1361 rdev->wiphy.available_antennas_rx))
1362 goto nla_put_failure;
1364 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1365 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1366 rdev->wiphy.probe_resp_offload))
1367 goto nla_put_failure;
1369 if ((rdev->wiphy.available_antennas_tx ||
1370 rdev->wiphy.available_antennas_rx) &&
1371 rdev->ops->get_antenna) {
1372 u32 tx_ant = 0, rx_ant = 0;
1374 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1376 if (nla_put_u32(msg,
1377 NL80211_ATTR_WIPHY_ANTENNA_TX,
1380 NL80211_ATTR_WIPHY_ANTENNA_RX,
1382 goto nla_put_failure;
1386 state->split_start++;
1390 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1391 rdev->wiphy.interface_modes))
1392 goto nla_put_failure;
1393 state->split_start++;
1397 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1399 goto nla_put_failure;
1401 for (band = state->band_start;
1402 band < IEEE80211_NUM_BANDS; band++) {
1403 struct ieee80211_supported_band *sband;
1405 sband = rdev->wiphy.bands[band];
1410 nl_band = nla_nest_start(msg, band);
1412 goto nla_put_failure;
1414 switch (state->chan_start) {
1416 if (nl80211_send_band_rateinfo(msg, sband))
1417 goto nla_put_failure;
1418 state->chan_start++;
1422 /* add frequencies */
1423 nl_freqs = nla_nest_start(
1424 msg, NL80211_BAND_ATTR_FREQS);
1426 goto nla_put_failure;
1428 for (i = state->chan_start - 1;
1429 i < sband->n_channels;
1431 nl_freq = nla_nest_start(msg, i);
1433 goto nla_put_failure;
1435 chan = &sband->channels[i];
1437 if (nl80211_msg_put_channel(
1440 goto nla_put_failure;
1442 nla_nest_end(msg, nl_freq);
1446 if (i < sband->n_channels)
1447 state->chan_start = i + 2;
1449 state->chan_start = 0;
1450 nla_nest_end(msg, nl_freqs);
1453 nla_nest_end(msg, nl_band);
1456 /* start again here */
1457 if (state->chan_start)
1462 nla_nest_end(msg, nl_bands);
1464 if (band < IEEE80211_NUM_BANDS)
1465 state->band_start = band + 1;
1467 state->band_start = 0;
1469 /* if bands & channels are done, continue outside */
1470 if (state->band_start == 0 && state->chan_start == 0)
1471 state->split_start++;
1475 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1477 goto nla_put_failure;
1480 #define CMD(op, n) \
1482 if (rdev->ops->op) { \
1484 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1485 goto nla_put_failure; \
1489 CMD(add_virtual_intf, NEW_INTERFACE);
1490 CMD(change_virtual_intf, SET_INTERFACE);
1491 CMD(add_key, NEW_KEY);
1492 CMD(start_ap, START_AP);
1493 CMD(add_station, NEW_STATION);
1494 CMD(add_mpath, NEW_MPATH);
1495 CMD(update_mesh_config, SET_MESH_CONFIG);
1496 CMD(change_bss, SET_BSS);
1497 CMD(auth, AUTHENTICATE);
1498 CMD(assoc, ASSOCIATE);
1499 CMD(deauth, DEAUTHENTICATE);
1500 CMD(disassoc, DISASSOCIATE);
1501 CMD(join_ibss, JOIN_IBSS);
1502 CMD(join_mesh, JOIN_MESH);
1503 CMD(set_pmksa, SET_PMKSA);
1504 CMD(del_pmksa, DEL_PMKSA);
1505 CMD(flush_pmksa, FLUSH_PMKSA);
1506 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1507 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1508 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1509 CMD(mgmt_tx, FRAME);
1510 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1511 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1513 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1514 goto nla_put_failure;
1516 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1517 rdev->ops->join_mesh) {
1519 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1520 goto nla_put_failure;
1522 CMD(set_wds_peer, SET_WDS_PEER);
1523 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1524 CMD(tdls_mgmt, TDLS_MGMT);
1525 CMD(tdls_oper, TDLS_OPER);
1527 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1528 CMD(sched_scan_start, START_SCHED_SCAN);
1529 CMD(probe_client, PROBE_CLIENT);
1530 CMD(set_noack_map, SET_NOACK_MAP);
1531 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1533 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1534 goto nla_put_failure;
1536 CMD(start_p2p_device, START_P2P_DEVICE);
1537 CMD(set_mcast_rate, SET_MCAST_RATE);
1538 #ifdef CONFIG_NL80211_TESTMODE
1539 CMD(testmode_cmd, TESTMODE);
1542 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1543 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1544 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1545 CMD(channel_switch, CHANNEL_SWITCH);
1546 CMD(set_qos_map, SET_QOS_MAP);
1547 if (rdev->wiphy.features &
1548 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1549 CMD(add_tx_ts, ADD_TX_TS);
1551 /* add into the if now */
1554 if (rdev->ops->connect || rdev->ops->auth) {
1556 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1557 goto nla_put_failure;
1560 if (rdev->ops->disconnect || rdev->ops->deauth) {
1562 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1563 goto nla_put_failure;
1566 nla_nest_end(msg, nl_cmds);
1567 state->split_start++;
1571 if (rdev->ops->remain_on_channel &&
1572 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1574 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1575 rdev->wiphy.max_remain_on_channel_duration))
1576 goto nla_put_failure;
1578 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1579 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1580 goto nla_put_failure;
1582 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1583 goto nla_put_failure;
1584 state->split_start++;
1589 if (nl80211_send_wowlan(msg, rdev, state->split))
1590 goto nla_put_failure;
1591 state->split_start++;
1595 state->split_start++;
1598 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1599 rdev->wiphy.software_iftypes))
1600 goto nla_put_failure;
1602 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1604 goto nla_put_failure;
1606 state->split_start++;
1610 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1611 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1612 rdev->wiphy.ap_sme_capa))
1613 goto nla_put_failure;
1615 features = rdev->wiphy.features;
1617 * We can only add the per-channel limit information if the
1618 * dump is split, otherwise it makes it too big. Therefore
1619 * only advertise it in that case.
1622 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1623 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1624 goto nla_put_failure;
1626 if (rdev->wiphy.ht_capa_mod_mask &&
1627 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1628 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1629 rdev->wiphy.ht_capa_mod_mask))
1630 goto nla_put_failure;
1632 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1633 rdev->wiphy.max_acl_mac_addrs &&
1634 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1635 rdev->wiphy.max_acl_mac_addrs))
1636 goto nla_put_failure;
1639 * Any information below this point is only available to
1640 * applications that can deal with it being split. This
1641 * helps ensure that newly added capabilities don't break
1642 * older tools by overrunning their buffers.
1644 * We still increment split_start so that in the split
1645 * case we'll continue with more data in the next round,
1646 * but break unconditionally so unsplit data stops here.
1648 state->split_start++;
1651 if (rdev->wiphy.extended_capabilities &&
1652 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1653 rdev->wiphy.extended_capabilities_len,
1654 rdev->wiphy.extended_capabilities) ||
1655 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1656 rdev->wiphy.extended_capabilities_len,
1657 rdev->wiphy.extended_capabilities_mask)))
1658 goto nla_put_failure;
1660 if (rdev->wiphy.vht_capa_mod_mask &&
1661 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1662 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1663 rdev->wiphy.vht_capa_mod_mask))
1664 goto nla_put_failure;
1666 state->split_start++;
1669 if (nl80211_send_coalesce(msg, rdev))
1670 goto nla_put_failure;
1672 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1673 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1674 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1675 goto nla_put_failure;
1677 if (rdev->wiphy.max_ap_assoc_sta &&
1678 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1679 rdev->wiphy.max_ap_assoc_sta))
1680 goto nla_put_failure;
1682 state->split_start++;
1685 if (rdev->wiphy.n_vendor_commands) {
1686 const struct nl80211_vendor_cmd_info *info;
1687 struct nlattr *nested;
1689 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1691 goto nla_put_failure;
1693 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1694 info = &rdev->wiphy.vendor_commands[i].info;
1695 if (nla_put(msg, i + 1, sizeof(*info), info))
1696 goto nla_put_failure;
1698 nla_nest_end(msg, nested);
1701 if (rdev->wiphy.n_vendor_events) {
1702 const struct nl80211_vendor_cmd_info *info;
1703 struct nlattr *nested;
1705 nested = nla_nest_start(msg,
1706 NL80211_ATTR_VENDOR_EVENTS);
1708 goto nla_put_failure;
1710 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1711 info = &rdev->wiphy.vendor_events[i];
1712 if (nla_put(msg, i + 1, sizeof(*info), info))
1713 goto nla_put_failure;
1715 nla_nest_end(msg, nested);
1717 state->split_start++;
1720 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1721 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1722 rdev->wiphy.max_num_csa_counters))
1723 goto nla_put_failure;
1725 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1726 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1727 goto nla_put_failure;
1729 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1730 sizeof(rdev->wiphy.ext_features),
1731 rdev->wiphy.ext_features))
1732 goto nla_put_failure;
1735 state->split_start = 0;
1739 genlmsg_end(msg, hdr);
1743 genlmsg_cancel(msg, hdr);
1747 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1748 struct netlink_callback *cb,
1749 struct nl80211_dump_wiphy_state *state)
1751 struct nlattr **tb = nl80211_fam.attrbuf;
1752 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1753 tb, nl80211_fam.maxattr, nl80211_policy);
1754 /* ignore parse errors for backward compatibility */
1758 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1759 if (tb[NL80211_ATTR_WIPHY])
1760 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1761 if (tb[NL80211_ATTR_WDEV])
1762 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1763 if (tb[NL80211_ATTR_IFINDEX]) {
1764 struct net_device *netdev;
1765 struct cfg80211_registered_device *rdev;
1766 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1768 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1771 if (netdev->ieee80211_ptr) {
1772 rdev = wiphy_to_rdev(
1773 netdev->ieee80211_ptr->wiphy);
1774 state->filter_wiphy = rdev->wiphy_idx;
1781 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1784 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1785 struct cfg80211_registered_device *rdev;
1789 state = kzalloc(sizeof(*state), GFP_KERNEL);
1794 state->filter_wiphy = -1;
1795 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1801 cb->args[0] = (long)state;
1804 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1805 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1807 if (++idx <= state->start)
1809 if (state->filter_wiphy != -1 &&
1810 state->filter_wiphy != rdev->wiphy_idx)
1812 /* attempt to fit multiple wiphy data chunks into the skb */
1814 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1816 NETLINK_CB(cb->skb).portid,
1818 NLM_F_MULTI, state);
1821 * If sending the wiphy data didn't fit (ENOBUFS
1822 * or EMSGSIZE returned), this SKB is still
1823 * empty (so it's not too big because another
1824 * wiphy dataset is already in the skb) and
1825 * we've not tried to adjust the dump allocation
1826 * yet ... then adjust the alloc size to be
1827 * bigger, and return 1 but with the empty skb.
1828 * This results in an empty message being RX'ed
1829 * in userspace, but that is ignored.
1831 * We can then retry with the larger buffer.
1833 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1834 !skb->len && !state->split &&
1835 cb->min_dump_alloc < 4096) {
1836 cb->min_dump_alloc = 4096;
1837 state->split_start = 0;
1844 } while (state->split_start > 0);
1854 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1856 kfree((void *)cb->args[0]);
1860 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1862 struct sk_buff *msg;
1863 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1864 struct nl80211_dump_wiphy_state state = {};
1866 msg = nlmsg_new(4096, GFP_KERNEL);
1870 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1871 info->snd_portid, info->snd_seq, 0,
1877 return genlmsg_reply(msg, info);
1880 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1881 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1882 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1883 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1884 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1885 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1888 static int parse_txq_params(struct nlattr *tb[],
1889 struct ieee80211_txq_params *txq_params)
1891 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1892 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1893 !tb[NL80211_TXQ_ATTR_AIFS])
1896 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1897 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1898 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1899 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1900 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1902 if (txq_params->ac >= NL80211_NUM_ACS)
1908 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1911 * You can only set the channel explicitly for WDS interfaces,
1912 * all others have their channel managed via their respective
1913 * "establish a connection" command (connect, join, ...)
1915 * For AP/GO and mesh mode, the channel can be set with the
1916 * channel userspace API, but is only stored and passed to the
1917 * low-level driver when the AP starts or the mesh is joined.
1918 * This is for backward compatibility, userspace can also give
1919 * the channel in the start-ap or join-mesh commands instead.
1921 * Monitors are special as they are normally slaved to
1922 * whatever else is going on, so they have their own special
1923 * operation to set the monitor channel if possible.
1926 wdev->iftype == NL80211_IFTYPE_AP ||
1927 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1928 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1929 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1932 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1933 struct genl_info *info,
1934 struct cfg80211_chan_def *chandef)
1938 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1941 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1943 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1944 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1945 chandef->center_freq1 = control_freq;
1946 chandef->center_freq2 = 0;
1948 /* Primary channel not allowed */
1949 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1952 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1953 enum nl80211_channel_type chantype;
1955 chantype = nla_get_u32(
1956 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1959 case NL80211_CHAN_NO_HT:
1960 case NL80211_CHAN_HT20:
1961 case NL80211_CHAN_HT40PLUS:
1962 case NL80211_CHAN_HT40MINUS:
1963 cfg80211_chandef_create(chandef, chandef->chan,
1969 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1971 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1972 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1973 chandef->center_freq1 =
1975 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1976 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1977 chandef->center_freq2 =
1979 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1982 if (!cfg80211_chandef_valid(chandef))
1985 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1986 IEEE80211_CHAN_DISABLED))
1989 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1990 chandef->width == NL80211_CHAN_WIDTH_10) &&
1991 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1997 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1998 struct net_device *dev,
1999 struct genl_info *info)
2001 struct cfg80211_chan_def chandef;
2003 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2004 struct wireless_dev *wdev = NULL;
2007 wdev = dev->ieee80211_ptr;
2008 if (!nl80211_can_set_dev_channel(wdev))
2011 iftype = wdev->iftype;
2013 result = nl80211_parse_chandef(rdev, info, &chandef);
2018 case NL80211_IFTYPE_AP:
2019 case NL80211_IFTYPE_P2P_GO:
2020 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2025 if (wdev->beacon_interval) {
2026 if (!dev || !rdev->ops->set_ap_chanwidth ||
2027 !(rdev->wiphy.features &
2028 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2033 /* Only allow dynamic channel width changes */
2034 if (chandef.chan != wdev->preset_chandef.chan) {
2038 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2042 wdev->preset_chandef = chandef;
2045 case NL80211_IFTYPE_MESH_POINT:
2046 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2048 case NL80211_IFTYPE_MONITOR:
2049 result = cfg80211_set_monitor_channel(rdev, &chandef);
2058 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2061 struct net_device *netdev = info->user_ptr[1];
2063 return __nl80211_set_channel(rdev, netdev, info);
2066 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2068 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2069 struct net_device *dev = info->user_ptr[1];
2070 struct wireless_dev *wdev = dev->ieee80211_ptr;
2073 if (!info->attrs[NL80211_ATTR_MAC])
2076 if (netif_running(dev))
2079 if (!rdev->ops->set_wds_peer)
2082 if (wdev->iftype != NL80211_IFTYPE_WDS)
2085 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2086 return rdev_set_wds_peer(rdev, dev, bssid);
2090 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2092 struct cfg80211_registered_device *rdev;
2093 struct net_device *netdev = NULL;
2094 struct wireless_dev *wdev;
2095 int result = 0, rem_txq_params = 0;
2096 struct nlattr *nl_txq_params;
2098 u8 retry_short = 0, retry_long = 0;
2099 u32 frag_threshold = 0, rts_threshold = 0;
2100 u8 coverage_class = 0;
2105 * Try to find the wiphy and netdev. Normally this
2106 * function shouldn't need the netdev, but this is
2107 * done for backward compatibility -- previously
2108 * setting the channel was done per wiphy, but now
2109 * it is per netdev. Previous userland like hostapd
2110 * also passed a netdev to set_wiphy, so that it is
2111 * possible to let that go to the right netdev!
2114 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2115 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2117 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2118 if (netdev && netdev->ieee80211_ptr)
2119 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2125 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2128 return PTR_ERR(rdev);
2133 wdev = netdev->ieee80211_ptr;
2136 * end workaround code, by now the rdev is available
2137 * and locked, and wdev may or may not be NULL.
2140 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2141 result = cfg80211_dev_rename(
2142 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2147 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2148 struct ieee80211_txq_params txq_params;
2149 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2151 if (!rdev->ops->set_txq_params)
2157 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2158 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2161 if (!netif_running(netdev))
2164 nla_for_each_nested(nl_txq_params,
2165 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2167 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2168 nla_data(nl_txq_params),
2169 nla_len(nl_txq_params),
2173 result = parse_txq_params(tb, &txq_params);
2177 result = rdev_set_txq_params(rdev, netdev,
2184 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2185 result = __nl80211_set_channel(
2187 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2193 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2194 struct wireless_dev *txp_wdev = wdev;
2195 enum nl80211_tx_power_setting type;
2198 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2201 if (!rdev->ops->set_tx_power)
2204 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2205 type = nla_get_u32(info->attrs[idx]);
2207 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2208 (type != NL80211_TX_POWER_AUTOMATIC))
2211 if (type != NL80211_TX_POWER_AUTOMATIC) {
2212 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2213 mbm = nla_get_u32(info->attrs[idx]);
2216 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2221 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2222 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2224 if ((!rdev->wiphy.available_antennas_tx &&
2225 !rdev->wiphy.available_antennas_rx) ||
2226 !rdev->ops->set_antenna)
2229 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2230 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2232 /* reject antenna configurations which don't match the
2233 * available antenna masks, except for the "all" mask */
2234 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2235 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2238 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2239 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2241 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2248 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2249 retry_short = nla_get_u8(
2250 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2251 if (retry_short == 0)
2254 changed |= WIPHY_PARAM_RETRY_SHORT;
2257 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2258 retry_long = nla_get_u8(
2259 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2260 if (retry_long == 0)
2263 changed |= WIPHY_PARAM_RETRY_LONG;
2266 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2267 frag_threshold = nla_get_u32(
2268 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2269 if (frag_threshold < 256)
2272 if (frag_threshold != (u32) -1) {
2274 * Fragments (apart from the last one) are required to
2275 * have even length. Make the fragmentation code
2276 * simpler by stripping LSB should someone try to use
2277 * odd threshold value.
2279 frag_threshold &= ~0x1;
2281 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2284 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2285 rts_threshold = nla_get_u32(
2286 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2287 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2290 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2291 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2294 coverage_class = nla_get_u8(
2295 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2296 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2299 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2300 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2303 changed |= WIPHY_PARAM_DYN_ACK;
2307 u8 old_retry_short, old_retry_long;
2308 u32 old_frag_threshold, old_rts_threshold;
2309 u8 old_coverage_class;
2311 if (!rdev->ops->set_wiphy_params)
2314 old_retry_short = rdev->wiphy.retry_short;
2315 old_retry_long = rdev->wiphy.retry_long;
2316 old_frag_threshold = rdev->wiphy.frag_threshold;
2317 old_rts_threshold = rdev->wiphy.rts_threshold;
2318 old_coverage_class = rdev->wiphy.coverage_class;
2320 if (changed & WIPHY_PARAM_RETRY_SHORT)
2321 rdev->wiphy.retry_short = retry_short;
2322 if (changed & WIPHY_PARAM_RETRY_LONG)
2323 rdev->wiphy.retry_long = retry_long;
2324 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2325 rdev->wiphy.frag_threshold = frag_threshold;
2326 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2327 rdev->wiphy.rts_threshold = rts_threshold;
2328 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2329 rdev->wiphy.coverage_class = coverage_class;
2331 result = rdev_set_wiphy_params(rdev, changed);
2333 rdev->wiphy.retry_short = old_retry_short;
2334 rdev->wiphy.retry_long = old_retry_long;
2335 rdev->wiphy.frag_threshold = old_frag_threshold;
2336 rdev->wiphy.rts_threshold = old_rts_threshold;
2337 rdev->wiphy.coverage_class = old_coverage_class;
2344 static inline u64 wdev_id(struct wireless_dev *wdev)
2346 return (u64)wdev->identifier |
2347 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2350 static int nl80211_send_chandef(struct sk_buff *msg,
2351 const struct cfg80211_chan_def *chandef)
2353 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2356 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2357 chandef->chan->center_freq))
2359 switch (chandef->width) {
2360 case NL80211_CHAN_WIDTH_20_NOHT:
2361 case NL80211_CHAN_WIDTH_20:
2362 case NL80211_CHAN_WIDTH_40:
2363 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2364 cfg80211_get_chandef_type(chandef)))
2370 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2372 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2374 if (chandef->center_freq2 &&
2375 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2380 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2381 struct cfg80211_registered_device *rdev,
2382 struct wireless_dev *wdev, bool removal)
2384 struct net_device *dev = wdev->netdev;
2385 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2389 cmd = NL80211_CMD_DEL_INTERFACE;
2391 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2396 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2397 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2398 goto nla_put_failure;
2400 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2401 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2402 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2403 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2404 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2405 rdev->devlist_generation ^
2406 (cfg80211_rdev_list_generation << 2)))
2407 goto nla_put_failure;
2409 if (rdev->ops->get_channel) {
2411 struct cfg80211_chan_def chandef;
2413 ret = rdev_get_channel(rdev, wdev, &chandef);
2415 if (nl80211_send_chandef(msg, &chandef))
2416 goto nla_put_failure;
2420 if (rdev->ops->get_tx_power) {
2423 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2425 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2427 goto nla_put_failure;
2430 if (wdev->ssid_len) {
2431 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2432 goto nla_put_failure;
2435 genlmsg_end(msg, hdr);
2439 genlmsg_cancel(msg, hdr);
2443 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2447 int wp_start = cb->args[0];
2448 int if_start = cb->args[1];
2449 struct cfg80211_registered_device *rdev;
2450 struct wireless_dev *wdev;
2453 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2454 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2456 if (wp_idx < wp_start) {
2462 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2463 if (if_idx < if_start) {
2467 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2468 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2469 rdev, wdev, false) < 0) {
2480 cb->args[0] = wp_idx;
2481 cb->args[1] = if_idx;
2486 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2488 struct sk_buff *msg;
2489 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2490 struct wireless_dev *wdev = info->user_ptr[1];
2492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2496 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2497 rdev, wdev, false) < 0) {
2502 return genlmsg_reply(msg, info);
2505 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2506 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2507 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2508 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2509 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2510 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2511 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2514 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2516 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2524 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2525 nla, mntr_flags_policy))
2528 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2530 *mntrflags |= (1<<flag);
2535 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2536 struct net_device *netdev, u8 use_4addr,
2537 enum nl80211_iftype iftype)
2540 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2546 case NL80211_IFTYPE_AP_VLAN:
2547 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2550 case NL80211_IFTYPE_STATION:
2551 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2561 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2563 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2564 struct vif_params params;
2566 enum nl80211_iftype otype, ntype;
2567 struct net_device *dev = info->user_ptr[1];
2568 u32 _flags, *flags = NULL;
2569 bool change = false;
2571 memset(¶ms, 0, sizeof(params));
2573 otype = ntype = dev->ieee80211_ptr->iftype;
2575 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2576 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2579 if (ntype > NL80211_IFTYPE_MAX)
2583 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2584 struct wireless_dev *wdev = dev->ieee80211_ptr;
2586 if (ntype != NL80211_IFTYPE_MESH_POINT)
2588 if (netif_running(dev))
2592 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2593 IEEE80211_MAX_MESH_ID_LEN);
2594 wdev->mesh_id_up_len =
2595 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2596 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2597 wdev->mesh_id_up_len);
2601 if (info->attrs[NL80211_ATTR_4ADDR]) {
2602 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2604 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2608 params.use_4addr = -1;
2611 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2612 if (ntype != NL80211_IFTYPE_MONITOR)
2614 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2623 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2624 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2628 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2632 if (!err && params.use_4addr != -1)
2633 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2638 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2640 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2641 struct vif_params params;
2642 struct wireless_dev *wdev;
2643 struct sk_buff *msg, *event;
2645 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2648 /* to avoid failing a new interface creation due to pending removal */
2649 cfg80211_destroy_ifaces(rdev);
2651 memset(¶ms, 0, sizeof(params));
2653 if (!info->attrs[NL80211_ATTR_IFNAME])
2656 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2657 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2658 if (type > NL80211_IFTYPE_MAX)
2662 if (!rdev->ops->add_virtual_intf ||
2663 !(rdev->wiphy.interface_modes & (1 << type)))
2666 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2667 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2668 info->attrs[NL80211_ATTR_MAC]) {
2669 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2671 if (!is_valid_ether_addr(params.macaddr))
2672 return -EADDRNOTAVAIL;
2675 if (info->attrs[NL80211_ATTR_4ADDR]) {
2676 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2677 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2682 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2683 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2686 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2687 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2690 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2694 wdev = rdev_add_virtual_intf(rdev,
2695 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2696 NET_NAME_USER, type, err ? NULL : &flags,
2698 if (WARN_ON(!wdev)) {
2701 } else if (IS_ERR(wdev)) {
2703 return PTR_ERR(wdev);
2706 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2707 wdev->owner_nlportid = info->snd_portid;
2710 case NL80211_IFTYPE_MESH_POINT:
2711 if (!info->attrs[NL80211_ATTR_MESH_ID])
2714 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2715 IEEE80211_MAX_MESH_ID_LEN);
2716 wdev->mesh_id_up_len =
2717 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2718 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2719 wdev->mesh_id_up_len);
2722 case NL80211_IFTYPE_P2P_DEVICE:
2724 * P2P Device doesn't have a netdev, so doesn't go
2725 * through the netdev notifier and must be added here
2727 mutex_init(&wdev->mtx);
2728 INIT_LIST_HEAD(&wdev->event_list);
2729 spin_lock_init(&wdev->event_lock);
2730 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2731 spin_lock_init(&wdev->mgmt_registrations_lock);
2733 wdev->identifier = ++rdev->wdev_id;
2734 list_add_rcu(&wdev->list, &rdev->wdev_list);
2735 rdev->devlist_generation++;
2741 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2742 rdev, wdev, false) < 0) {
2747 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2749 if (nl80211_send_iface(event, 0, 0, 0,
2750 rdev, wdev, false) < 0) {
2755 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2756 event, 0, NL80211_MCGRP_CONFIG,
2761 return genlmsg_reply(msg, info);
2764 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2766 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2767 struct wireless_dev *wdev = info->user_ptr[1];
2768 struct sk_buff *msg;
2771 if (!rdev->ops->del_virtual_intf)
2774 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2775 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2781 * If we remove a wireless device without a netdev then clear
2782 * user_ptr[1] so that nl80211_post_doit won't dereference it
2783 * to check if it needs to do dev_put(). Otherwise it crashes
2784 * since the wdev has been freed, unlike with a netdev where
2785 * we need the dev_put() for the netdev to really be freed.
2788 info->user_ptr[1] = NULL;
2790 status = rdev_del_virtual_intf(rdev, wdev);
2791 if (status >= 0 && msg)
2792 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2793 msg, 0, NL80211_MCGRP_CONFIG,
2801 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2803 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2804 struct net_device *dev = info->user_ptr[1];
2807 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2810 if (!rdev->ops->set_noack_map)
2813 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2815 return rdev_set_noack_map(rdev, dev, noack_map);
2818 struct get_key_cookie {
2819 struct sk_buff *msg;
2824 static void get_key_callback(void *c, struct key_params *params)
2827 struct get_key_cookie *cookie = c;
2830 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2831 params->key_len, params->key)) ||
2833 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2834 params->seq_len, params->seq)) ||
2836 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2838 goto nla_put_failure;
2840 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2842 goto nla_put_failure;
2845 nla_put(cookie->msg, NL80211_KEY_DATA,
2846 params->key_len, params->key)) ||
2848 nla_put(cookie->msg, NL80211_KEY_SEQ,
2849 params->seq_len, params->seq)) ||
2851 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2853 goto nla_put_failure;
2855 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2856 goto nla_put_failure;
2858 nla_nest_end(cookie->msg, key);
2865 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2867 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2869 struct net_device *dev = info->user_ptr[1];
2871 const u8 *mac_addr = NULL;
2873 struct get_key_cookie cookie = {
2877 struct sk_buff *msg;
2879 if (info->attrs[NL80211_ATTR_KEY_IDX])
2880 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2885 if (info->attrs[NL80211_ATTR_MAC])
2886 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2888 pairwise = !!mac_addr;
2889 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2890 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2891 if (kt >= NUM_NL80211_KEYTYPES)
2893 if (kt != NL80211_KEYTYPE_GROUP &&
2894 kt != NL80211_KEYTYPE_PAIRWISE)
2896 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2899 if (!rdev->ops->get_key)
2902 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2905 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2909 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2910 NL80211_CMD_NEW_KEY);
2912 goto nla_put_failure;
2915 cookie.idx = key_idx;
2917 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2918 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2919 goto nla_put_failure;
2921 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2922 goto nla_put_failure;
2924 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2931 goto nla_put_failure;
2933 genlmsg_end(msg, hdr);
2934 return genlmsg_reply(msg, info);
2943 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2945 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2946 struct key_parse key;
2948 struct net_device *dev = info->user_ptr[1];
2950 err = nl80211_parse_key(info, &key);
2957 /* only support setting default key */
2958 if (!key.def && !key.defmgmt)
2961 wdev_lock(dev->ieee80211_ptr);
2964 if (!rdev->ops->set_default_key) {
2969 err = nl80211_key_allowed(dev->ieee80211_ptr);
2973 err = rdev_set_default_key(rdev, dev, key.idx,
2974 key.def_uni, key.def_multi);
2979 #ifdef CONFIG_CFG80211_WEXT
2980 dev->ieee80211_ptr->wext.default_key = key.idx;
2983 if (key.def_uni || !key.def_multi) {
2988 if (!rdev->ops->set_default_mgmt_key) {
2993 err = nl80211_key_allowed(dev->ieee80211_ptr);
2997 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3001 #ifdef CONFIG_CFG80211_WEXT
3002 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3007 wdev_unlock(dev->ieee80211_ptr);
3012 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3014 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3016 struct net_device *dev = info->user_ptr[1];
3017 struct key_parse key;
3018 const u8 *mac_addr = NULL;
3020 err = nl80211_parse_key(info, &key);
3027 if (info->attrs[NL80211_ATTR_MAC])
3028 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3030 if (key.type == -1) {
3032 key.type = NL80211_KEYTYPE_PAIRWISE;
3034 key.type = NL80211_KEYTYPE_GROUP;
3038 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3039 key.type != NL80211_KEYTYPE_GROUP)
3042 if (!rdev->ops->add_key)
3045 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3046 key.type == NL80211_KEYTYPE_PAIRWISE,
3050 wdev_lock(dev->ieee80211_ptr);
3051 err = nl80211_key_allowed(dev->ieee80211_ptr);
3053 err = rdev_add_key(rdev, dev, key.idx,
3054 key.type == NL80211_KEYTYPE_PAIRWISE,
3056 wdev_unlock(dev->ieee80211_ptr);
3061 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3063 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3065 struct net_device *dev = info->user_ptr[1];
3066 u8 *mac_addr = NULL;
3067 struct key_parse key;
3069 err = nl80211_parse_key(info, &key);
3073 if (info->attrs[NL80211_ATTR_MAC])
3074 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3076 if (key.type == -1) {
3078 key.type = NL80211_KEYTYPE_PAIRWISE;
3080 key.type = NL80211_KEYTYPE_GROUP;
3084 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3085 key.type != NL80211_KEYTYPE_GROUP)
3088 if (!rdev->ops->del_key)
3091 wdev_lock(dev->ieee80211_ptr);
3092 err = nl80211_key_allowed(dev->ieee80211_ptr);
3094 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3095 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3099 err = rdev_del_key(rdev, dev, key.idx,
3100 key.type == NL80211_KEYTYPE_PAIRWISE,
3103 #ifdef CONFIG_CFG80211_WEXT
3105 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3106 dev->ieee80211_ptr->wext.default_key = -1;
3107 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3108 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3111 wdev_unlock(dev->ieee80211_ptr);
3116 /* This function returns an error or the number of nested attributes */
3117 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3119 struct nlattr *attr;
3120 int n_entries = 0, tmp;
3122 nla_for_each_nested(attr, nl_attr, tmp) {
3123 if (nla_len(attr) != ETH_ALEN)
3133 * This function parses ACL information and allocates memory for ACL data.
3134 * On successful return, the calling function is responsible to free the
3135 * ACL buffer returned by this function.
3137 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3138 struct genl_info *info)
3140 enum nl80211_acl_policy acl_policy;
3141 struct nlattr *attr;
3142 struct cfg80211_acl_data *acl;
3143 int i = 0, n_entries, tmp;
3145 if (!wiphy->max_acl_mac_addrs)
3146 return ERR_PTR(-EOPNOTSUPP);
3148 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3149 return ERR_PTR(-EINVAL);
3151 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3152 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3153 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3154 return ERR_PTR(-EINVAL);
3156 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3157 return ERR_PTR(-EINVAL);
3159 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3161 return ERR_PTR(n_entries);
3163 if (n_entries > wiphy->max_acl_mac_addrs)
3164 return ERR_PTR(-ENOTSUPP);
3166 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3169 return ERR_PTR(-ENOMEM);
3171 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3172 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3176 acl->n_acl_entries = n_entries;
3177 acl->acl_policy = acl_policy;
3182 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3184 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3185 struct net_device *dev = info->user_ptr[1];
3186 struct cfg80211_acl_data *acl;
3189 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3190 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3193 if (!dev->ieee80211_ptr->beacon_interval)
3196 acl = parse_acl_data(&rdev->wiphy, info);
3198 return PTR_ERR(acl);
3200 err = rdev_set_mac_acl(rdev, dev, acl);
3207 static int nl80211_parse_beacon(struct nlattr *attrs[],
3208 struct cfg80211_beacon_data *bcn)
3210 bool haveinfo = false;
3212 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3213 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3214 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3215 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3218 memset(bcn, 0, sizeof(*bcn));
3220 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3221 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3222 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3228 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3229 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3230 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3237 if (attrs[NL80211_ATTR_IE]) {
3238 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3239 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3242 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3243 bcn->proberesp_ies =
3244 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3245 bcn->proberesp_ies_len =
3246 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3249 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3250 bcn->assocresp_ies =
3251 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3252 bcn->assocresp_ies_len =
3253 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3256 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3257 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3258 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3264 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3265 struct cfg80211_ap_settings *params)
3267 struct wireless_dev *wdev;
3270 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3271 if (wdev->iftype != NL80211_IFTYPE_AP &&
3272 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3275 if (!wdev->preset_chandef.chan)
3278 params->chandef = wdev->preset_chandef;
3286 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3287 enum nl80211_auth_type auth_type,
3288 enum nl80211_commands cmd)
3290 if (auth_type > NL80211_AUTHTYPE_MAX)
3294 case NL80211_CMD_AUTHENTICATE:
3295 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3296 auth_type == NL80211_AUTHTYPE_SAE)
3299 case NL80211_CMD_CONNECT:
3300 case NL80211_CMD_START_AP:
3301 /* SAE not supported yet */
3302 if (auth_type == NL80211_AUTHTYPE_SAE)
3310 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3312 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3313 struct net_device *dev = info->user_ptr[1];
3314 struct wireless_dev *wdev = dev->ieee80211_ptr;
3315 struct cfg80211_ap_settings params;
3318 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3319 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3322 if (!rdev->ops->start_ap)
3325 if (wdev->beacon_interval)
3328 memset(¶ms, 0, sizeof(params));
3330 /* these are required for START_AP */
3331 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3332 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3333 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3336 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3340 params.beacon_interval =
3341 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3342 params.dtim_period =
3343 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3345 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3350 * In theory, some of these attributes should be required here
3351 * but since they were not used when the command was originally
3352 * added, keep them optional for old user space programs to let
3353 * them continue to work with drivers that do not need the
3354 * additional information -- drivers must check!
3356 if (info->attrs[NL80211_ATTR_SSID]) {
3357 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3359 nla_len(info->attrs[NL80211_ATTR_SSID]);
3360 if (params.ssid_len == 0 ||
3361 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3365 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3366 params.hidden_ssid = nla_get_u32(
3367 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3368 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3369 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3370 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3374 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3376 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3377 params.auth_type = nla_get_u32(
3378 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3379 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3380 NL80211_CMD_START_AP))
3383 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3385 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3386 NL80211_MAX_NR_CIPHER_SUITES);
3390 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3391 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3393 params.inactivity_timeout = nla_get_u16(
3394 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3397 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3398 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3400 params.p2p_ctwindow =
3401 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3402 if (params.p2p_ctwindow > 127)
3404 if (params.p2p_ctwindow != 0 &&
3405 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3409 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3412 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3414 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3417 params.p2p_opp_ps = tmp;
3418 if (params.p2p_opp_ps != 0 &&
3419 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3423 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3424 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3427 } else if (wdev->preset_chandef.chan) {
3428 params.chandef = wdev->preset_chandef;
3429 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3432 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3436 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3438 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3439 switch (params.smps_mode) {
3440 case NL80211_SMPS_OFF:
3442 case NL80211_SMPS_STATIC:
3443 if (!(rdev->wiphy.features &
3444 NL80211_FEATURE_STATIC_SMPS))
3447 case NL80211_SMPS_DYNAMIC:
3448 if (!(rdev->wiphy.features &
3449 NL80211_FEATURE_DYNAMIC_SMPS))
3456 params.smps_mode = NL80211_SMPS_OFF;
3459 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3460 params.acl = parse_acl_data(&rdev->wiphy, info);
3461 if (IS_ERR(params.acl))
3462 return PTR_ERR(params.acl);
3465 params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
3466 if (params.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ])
3470 err = rdev_start_ap(rdev, dev, ¶ms);
3472 wdev->preset_chandef = params.chandef;
3473 wdev->beacon_interval = params.beacon_interval;
3474 wdev->chandef = params.chandef;
3475 wdev->ssid_len = params.ssid_len;
3476 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3485 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3487 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3488 struct net_device *dev = info->user_ptr[1];
3489 struct wireless_dev *wdev = dev->ieee80211_ptr;
3490 struct cfg80211_beacon_data params;
3493 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3494 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3497 if (!rdev->ops->change_beacon)
3500 if (!wdev->beacon_interval)
3503 err = nl80211_parse_beacon(info->attrs, ¶ms);
3508 err = rdev_change_beacon(rdev, dev, ¶ms);
3514 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3516 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3517 struct net_device *dev = info->user_ptr[1];
3519 return cfg80211_stop_ap(rdev, dev, false);
3522 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3523 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3524 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3525 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3526 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3527 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3528 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3531 static int parse_station_flags(struct genl_info *info,
3532 enum nl80211_iftype iftype,
3533 struct station_parameters *params)
3535 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3540 * Try parsing the new attribute first so userspace
3541 * can specify both for older kernels.
3543 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3545 struct nl80211_sta_flag_update *sta_flags;
3547 sta_flags = nla_data(nla);
3548 params->sta_flags_mask = sta_flags->mask;
3549 params->sta_flags_set = sta_flags->set;
3550 params->sta_flags_set &= params->sta_flags_mask;
3551 if ((params->sta_flags_mask |
3552 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3557 /* if present, parse the old attribute */
3559 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3563 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3564 nla, sta_flags_policy))
3568 * Only allow certain flags for interface types so that
3569 * other attributes are silently ignored. Remember that
3570 * this is backward compatibility code with old userspace
3571 * and shouldn't be hit in other cases anyway.
3574 case NL80211_IFTYPE_AP:
3575 case NL80211_IFTYPE_AP_VLAN:
3576 case NL80211_IFTYPE_P2P_GO:
3577 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3578 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3579 BIT(NL80211_STA_FLAG_WME) |
3580 BIT(NL80211_STA_FLAG_MFP);
3582 case NL80211_IFTYPE_P2P_CLIENT:
3583 case NL80211_IFTYPE_STATION:
3584 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3585 BIT(NL80211_STA_FLAG_TDLS_PEER);
3587 case NL80211_IFTYPE_MESH_POINT:
3588 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3589 BIT(NL80211_STA_FLAG_MFP) |
3590 BIT(NL80211_STA_FLAG_AUTHORIZED);
3595 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3597 params->sta_flags_set |= (1<<flag);
3599 /* no longer support new API additions in old API */
3600 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3608 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3611 struct nlattr *rate;
3614 enum nl80211_attrs rate_flg;
3616 rate = nla_nest_start(msg, attr);
3620 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3621 bitrate = cfg80211_calculate_bitrate(info);
3622 /* report 16-bit bitrate only if we can */
3623 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3625 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3627 if (bitrate_compat > 0 &&
3628 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3632 case RATE_INFO_BW_5:
3633 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3635 case RATE_INFO_BW_10:
3636 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3641 case RATE_INFO_BW_20:
3644 case RATE_INFO_BW_40:
3645 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3647 case RATE_INFO_BW_80:
3648 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3650 case RATE_INFO_BW_160:
3651 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3655 if (rate_flg && nla_put_flag(msg, rate_flg))
3658 if (info->flags & RATE_INFO_FLAGS_MCS) {
3659 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3661 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3662 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3664 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3665 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3667 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3669 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3670 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3674 nla_nest_end(msg, rate);
3678 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3687 attr = nla_nest_start(msg, id);
3691 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3692 if (!(mask & BIT(i)))
3695 if (nla_put_u8(msg, i, signal[i]))
3699 nla_nest_end(msg, attr);
3704 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3706 struct cfg80211_registered_device *rdev,
3707 struct net_device *dev,
3708 const u8 *mac_addr, struct station_info *sinfo)
3711 struct nlattr *sinfoattr, *bss_param;
3713 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3717 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3718 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3719 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3720 goto nla_put_failure;
3722 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3724 goto nla_put_failure;
3726 #define PUT_SINFO(attr, memb, type) do { \
3727 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3728 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3730 goto nla_put_failure; \
3733 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3734 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3736 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3737 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3738 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3739 (u32)sinfo->rx_bytes))
3740 goto nla_put_failure;
3742 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3743 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3744 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3745 (u32)sinfo->tx_bytes))
3746 goto nla_put_failure;
3748 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3749 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3750 PUT_SINFO(LLID, llid, u16);
3751 PUT_SINFO(PLID, plid, u16);
3752 PUT_SINFO(PLINK_STATE, plink_state, u8);
3754 switch (rdev->wiphy.signal_type) {
3755 case CFG80211_SIGNAL_TYPE_MBM:
3756 PUT_SINFO(SIGNAL, signal, u8);
3757 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3762 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3763 if (!nl80211_put_signal(msg, sinfo->chains,
3764 sinfo->chain_signal,
3765 NL80211_STA_INFO_CHAIN_SIGNAL))
3766 goto nla_put_failure;
3768 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3769 if (!nl80211_put_signal(msg, sinfo->chains,
3770 sinfo->chain_signal_avg,
3771 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3772 goto nla_put_failure;
3774 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3775 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3776 NL80211_STA_INFO_TX_BITRATE))
3777 goto nla_put_failure;
3779 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3780 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3781 NL80211_STA_INFO_RX_BITRATE))
3782 goto nla_put_failure;
3785 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3786 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3787 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3788 PUT_SINFO(TX_FAILED, tx_failed, u32);
3789 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3790 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3791 PUT_SINFO(LOCAL_PM, local_pm, u32);
3792 PUT_SINFO(PEER_PM, peer_pm, u32);
3793 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3795 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3796 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3798 goto nla_put_failure;
3800 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3801 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3802 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3803 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3804 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3805 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3806 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3807 sinfo->bss_param.dtim_period) ||
3808 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3809 sinfo->bss_param.beacon_interval))
3810 goto nla_put_failure;
3812 nla_nest_end(msg, bss_param);
3814 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3815 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3816 sizeof(struct nl80211_sta_flag_update),
3818 goto nla_put_failure;
3820 PUT_SINFO(T_OFFSET, t_offset, u64);
3821 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
3822 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3823 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3827 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3828 struct nlattr *tidsattr;
3831 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3833 goto nla_put_failure;
3835 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3836 struct cfg80211_tid_stats *tidstats;
3837 struct nlattr *tidattr;
3839 tidstats = &sinfo->pertid[tid];
3841 if (!tidstats->filled)
3844 tidattr = nla_nest_start(msg, tid + 1);
3846 goto nla_put_failure;
3848 #define PUT_TIDVAL(attr, memb, type) do { \
3849 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3850 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3852 goto nla_put_failure; \
3855 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3856 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3857 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3858 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3861 nla_nest_end(msg, tidattr);
3864 nla_nest_end(msg, tidsattr);
3867 nla_nest_end(msg, sinfoattr);
3869 if (sinfo->assoc_req_ies_len &&
3870 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3871 sinfo->assoc_req_ies))
3872 goto nla_put_failure;
3874 genlmsg_end(msg, hdr);
3878 genlmsg_cancel(msg, hdr);
3882 static int nl80211_dump_station(struct sk_buff *skb,
3883 struct netlink_callback *cb)
3885 struct station_info sinfo;
3886 struct cfg80211_registered_device *rdev;
3887 struct wireless_dev *wdev;
3888 u8 mac_addr[ETH_ALEN];
3889 int sta_idx = cb->args[2];
3892 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3896 if (!wdev->netdev) {
3901 if (!rdev->ops->dump_station) {
3907 memset(&sinfo, 0, sizeof(sinfo));
3908 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3915 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
3916 NETLINK_CB(cb->skb).portid,
3917 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3918 rdev, wdev->netdev, mac_addr,
3927 cb->args[2] = sta_idx;
3930 nl80211_finish_wdev_dump(rdev);
3935 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3938 struct net_device *dev = info->user_ptr[1];
3939 struct station_info sinfo;
3940 struct sk_buff *msg;
3941 u8 *mac_addr = NULL;
3944 memset(&sinfo, 0, sizeof(sinfo));
3946 if (!info->attrs[NL80211_ATTR_MAC])
3949 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3951 if (!rdev->ops->get_station)
3954 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3958 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3962 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3963 info->snd_portid, info->snd_seq, 0,
3964 rdev, dev, mac_addr, &sinfo) < 0) {
3969 return genlmsg_reply(msg, info);
3972 int cfg80211_check_station_change(struct wiphy *wiphy,
3973 struct station_parameters *params,
3974 enum cfg80211_station_type statype)
3976 if (params->listen_interval != -1 &&
3977 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
3981 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
3982 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
3985 /* When you run into this, adjust the code below for the new flag */
3986 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3989 case CFG80211_STA_MESH_PEER_KERNEL:
3990 case CFG80211_STA_MESH_PEER_USER:
3992 * No ignoring the TDLS flag here -- the userspace mesh
3993 * code doesn't have the bug of including TDLS in the
3996 if (params->sta_flags_mask &
3997 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3998 BIT(NL80211_STA_FLAG_MFP) |
3999 BIT(NL80211_STA_FLAG_AUTHORIZED)))
4002 case CFG80211_STA_TDLS_PEER_SETUP:
4003 case CFG80211_STA_TDLS_PEER_ACTIVE:
4004 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4006 /* ignore since it can't change */
4007 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4010 /* disallow mesh-specific things */
4011 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4013 if (params->local_pm)
4015 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4019 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4020 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4021 /* TDLS can't be set, ... */
4022 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4025 * ... but don't bother the driver with it. This works around
4026 * a hostapd/wpa_supplicant issue -- it always includes the
4027 * TLDS_PEER flag in the mask even for AP mode.
4029 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4032 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4033 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4034 /* reject other things that can't change */
4035 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4037 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4039 if (params->supported_rates)
4041 if (params->ext_capab || params->ht_capa || params->vht_capa)
4045 if (statype != CFG80211_STA_AP_CLIENT &&
4046 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4052 case CFG80211_STA_AP_MLME_CLIENT:
4053 /* Use this only for authorizing/unauthorizing a station */
4054 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4057 case CFG80211_STA_AP_CLIENT:
4058 case CFG80211_STA_AP_CLIENT_UNASSOC:
4059 /* accept only the listed bits */
4060 if (params->sta_flags_mask &
4061 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4062 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4063 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4064 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4065 BIT(NL80211_STA_FLAG_WME) |
4066 BIT(NL80211_STA_FLAG_MFP)))
4069 /* but authenticated/associated only if driver handles it */
4070 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4071 params->sta_flags_mask &
4072 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4073 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4076 case CFG80211_STA_IBSS:
4077 case CFG80211_STA_AP_STA:
4078 /* reject any changes other than AUTHORIZED */
4079 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4082 case CFG80211_STA_TDLS_PEER_SETUP:
4083 /* reject any changes other than AUTHORIZED or WME */
4084 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4085 BIT(NL80211_STA_FLAG_WME)))
4087 /* force (at least) rates when authorizing */
4088 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4089 !params->supported_rates)
4092 case CFG80211_STA_TDLS_PEER_ACTIVE:
4093 /* reject any changes */
4095 case CFG80211_STA_MESH_PEER_KERNEL:
4096 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4099 case CFG80211_STA_MESH_PEER_USER:
4100 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4101 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4108 EXPORT_SYMBOL(cfg80211_check_station_change);
4111 * Get vlan interface making sure it is running and on the right wiphy.
4113 static struct net_device *get_vlan(struct genl_info *info,
4114 struct cfg80211_registered_device *rdev)
4116 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4117 struct net_device *v;
4123 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4125 return ERR_PTR(-ENODEV);
4127 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4132 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4133 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4134 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4139 if (!netif_running(v)) {
4147 return ERR_PTR(ret);
4150 static const struct nla_policy
4151 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4152 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4153 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4156 static int nl80211_parse_sta_wme(struct genl_info *info,
4157 struct station_parameters *params)
4159 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4163 /* parse WME attributes if present */
4164 if (!info->attrs[NL80211_ATTR_STA_WME])
4167 nla = info->attrs[NL80211_ATTR_STA_WME];
4168 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4169 nl80211_sta_wme_policy);
4173 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4174 params->uapsd_queues = nla_get_u8(
4175 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4176 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4179 if (tb[NL80211_STA_WME_MAX_SP])
4180 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4182 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4185 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4190 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4191 struct station_parameters *params)
4193 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4194 params->supported_channels =
4195 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4196 params->supported_channels_len =
4197 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4199 * Need to include at least one (first channel, number of
4200 * channels) tuple for each subband, and must have proper
4201 * tuples for the rest of the data as well.
4203 if (params->supported_channels_len < 2)
4205 if (params->supported_channels_len % 2)
4209 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4210 params->supported_oper_classes =
4211 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4212 params->supported_oper_classes_len =
4213 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4215 * The value of the Length field of the Supported Operating
4216 * Classes element is between 2 and 253.
4218 if (params->supported_oper_classes_len < 2 ||
4219 params->supported_oper_classes_len > 253)
4225 static int nl80211_set_station_tdls(struct genl_info *info,
4226 struct station_parameters *params)
4229 /* Dummy STA entry gets updated once the peer capabilities are known */
4230 if (info->attrs[NL80211_ATTR_PEER_AID])
4231 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4232 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4234 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4235 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4237 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4239 err = nl80211_parse_sta_channel_info(info, params);
4243 return nl80211_parse_sta_wme(info, params);
4246 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4248 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4249 struct net_device *dev = info->user_ptr[1];
4250 struct station_parameters params;
4254 memset(¶ms, 0, sizeof(params));
4256 if (!rdev->ops->change_station)
4260 * AID and listen_interval properties can be set only for unassociated
4261 * station. Include these parameters here and will check them in
4262 * cfg80211_check_station_change().
4264 if (info->attrs[NL80211_ATTR_STA_AID])
4265 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4267 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4268 params.listen_interval =
4269 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4271 params.listen_interval = -1;
4273 if (!info->attrs[NL80211_ATTR_MAC])
4276 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4278 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4279 params.supported_rates =
4280 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4281 params.supported_rates_len =
4282 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4285 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4287 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4288 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4291 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4293 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4294 params.ext_capab_len =
4295 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4298 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4301 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4302 params.plink_action =
4303 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4304 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4308 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4309 params.plink_state =
4310 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4311 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4313 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4316 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4317 enum nl80211_mesh_power_mode pm = nla_get_u32(
4318 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4320 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4321 pm > NL80211_MESH_POWER_MAX)
4324 params.local_pm = pm;
4327 /* Include parameters for TDLS peer (will check later) */
4328 err = nl80211_set_station_tdls(info, ¶ms);
4332 params.vlan = get_vlan(info, rdev);
4333 if (IS_ERR(params.vlan))
4334 return PTR_ERR(params.vlan);
4336 switch (dev->ieee80211_ptr->iftype) {
4337 case NL80211_IFTYPE_AP:
4338 case NL80211_IFTYPE_AP_VLAN:
4339 case NL80211_IFTYPE_P2P_GO:
4340 case NL80211_IFTYPE_P2P_CLIENT:
4341 case NL80211_IFTYPE_STATION:
4342 case NL80211_IFTYPE_ADHOC:
4343 case NL80211_IFTYPE_MESH_POINT:
4350 /* driver will call cfg80211_check_station_change() */
4351 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4355 dev_put(params.vlan);
4360 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4362 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4364 struct net_device *dev = info->user_ptr[1];
4365 struct station_parameters params;
4366 u8 *mac_addr = NULL;
4367 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4368 BIT(NL80211_STA_FLAG_ASSOCIATED);
4370 memset(¶ms, 0, sizeof(params));
4372 if (!rdev->ops->add_station)
4375 if (!info->attrs[NL80211_ATTR_MAC])
4378 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4381 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4384 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4385 !info->attrs[NL80211_ATTR_PEER_AID])
4388 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4389 params.supported_rates =
4390 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4391 params.supported_rates_len =
4392 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4393 params.listen_interval =
4394 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4396 if (info->attrs[NL80211_ATTR_PEER_AID])
4397 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4399 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4400 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4403 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4405 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4406 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4409 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4411 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4412 params.ext_capab_len =
4413 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4416 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4418 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4420 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4422 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4424 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4425 params.opmode_notif_used = true;
4426 params.opmode_notif =
4427 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4430 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4431 params.plink_action =
4432 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4433 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4437 err = nl80211_parse_sta_channel_info(info, ¶ms);
4441 err = nl80211_parse_sta_wme(info, ¶ms);
4445 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4448 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4449 * as userspace might just pass through the capabilities from the IEs
4450 * directly, rather than enforcing this restriction and returning an
4451 * error in this case.
4453 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4454 params.ht_capa = NULL;
4455 params.vht_capa = NULL;
4458 /* When you run into this, adjust the code below for the new flag */
4459 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4461 switch (dev->ieee80211_ptr->iftype) {
4462 case NL80211_IFTYPE_AP:
4463 case NL80211_IFTYPE_AP_VLAN:
4464 case NL80211_IFTYPE_P2P_GO:
4465 /* ignore WME attributes if iface/sta is not capable */
4466 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4467 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4468 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4470 /* TDLS peers cannot be added */
4471 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4472 info->attrs[NL80211_ATTR_PEER_AID])
4474 /* but don't bother the driver with it */
4475 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4477 /* allow authenticated/associated only if driver handles it */
4478 if (!(rdev->wiphy.features &
4479 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4480 params.sta_flags_mask & auth_assoc)
4483 /* Older userspace, or userspace wanting to be compatible with
4484 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4485 * and assoc flags in the mask, but assumes the station will be
4486 * added as associated anyway since this was the required driver
4487 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4489 * In order to not bother drivers with this quirk in the API
4490 * set the flags in both the mask and set for new stations in
4493 if (!(params.sta_flags_mask & auth_assoc)) {
4494 params.sta_flags_mask |= auth_assoc;
4495 params.sta_flags_set |= auth_assoc;
4498 /* must be last in here for error handling */
4499 params.vlan = get_vlan(info, rdev);
4500 if (IS_ERR(params.vlan))
4501 return PTR_ERR(params.vlan);
4503 case NL80211_IFTYPE_MESH_POINT:
4504 /* ignore uAPSD data */
4505 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4507 /* associated is disallowed */
4508 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4510 /* TDLS peers cannot be added */
4511 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4512 info->attrs[NL80211_ATTR_PEER_AID])
4515 case NL80211_IFTYPE_STATION:
4516 case NL80211_IFTYPE_P2P_CLIENT:
4517 /* ignore uAPSD data */
4518 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4520 /* these are disallowed */
4521 if (params.sta_flags_mask &
4522 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4523 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4525 /* Only TDLS peers can be added */
4526 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4528 /* Can only add if TDLS ... */
4529 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4531 /* ... with external setup is supported */
4532 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4535 * Older wpa_supplicant versions always mark the TDLS peer
4536 * as authorized, but it shouldn't yet be.
4538 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4544 /* be aware of params.vlan when changing code here */
4546 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4549 dev_put(params.vlan);
4553 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4556 struct net_device *dev = info->user_ptr[1];
4557 struct station_del_parameters params;
4559 memset(¶ms, 0, sizeof(params));
4561 if (info->attrs[NL80211_ATTR_MAC])
4562 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4564 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4565 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4566 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4567 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4570 if (!rdev->ops->del_station)
4573 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4575 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4576 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4577 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4580 /* Default to Deauthentication frame */
4581 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4584 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4585 params.reason_code =
4586 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4587 if (params.reason_code == 0)
4588 return -EINVAL; /* 0 is reserved */
4590 /* Default to reason code 2 */
4591 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4594 return rdev_del_station(rdev, dev, ¶ms);
4597 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4598 int flags, struct net_device *dev,
4599 u8 *dst, u8 *next_hop,
4600 struct mpath_info *pinfo)
4603 struct nlattr *pinfoattr;
4605 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4609 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4610 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4611 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4612 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4613 goto nla_put_failure;
4615 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4617 goto nla_put_failure;
4618 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4619 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4621 goto nla_put_failure;
4622 if (((pinfo->filled & MPATH_INFO_SN) &&
4623 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4624 ((pinfo->filled & MPATH_INFO_METRIC) &&
4625 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4627 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4628 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4630 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4631 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4633 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4634 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4635 pinfo->discovery_timeout)) ||
4636 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4637 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4638 pinfo->discovery_retries)))
4639 goto nla_put_failure;
4641 nla_nest_end(msg, pinfoattr);
4643 genlmsg_end(msg, hdr);
4647 genlmsg_cancel(msg, hdr);
4651 static int nl80211_dump_mpath(struct sk_buff *skb,
4652 struct netlink_callback *cb)
4654 struct mpath_info pinfo;
4655 struct cfg80211_registered_device *rdev;
4656 struct wireless_dev *wdev;
4658 u8 next_hop[ETH_ALEN];
4659 int path_idx = cb->args[2];
4662 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4666 if (!rdev->ops->dump_mpath) {
4671 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4677 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4684 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4685 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4686 wdev->netdev, dst, next_hop,
4695 cb->args[2] = path_idx;
4698 nl80211_finish_wdev_dump(rdev);
4702 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4704 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4706 struct net_device *dev = info->user_ptr[1];
4707 struct mpath_info pinfo;
4708 struct sk_buff *msg;
4710 u8 next_hop[ETH_ALEN];
4712 memset(&pinfo, 0, sizeof(pinfo));
4714 if (!info->attrs[NL80211_ATTR_MAC])
4717 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4719 if (!rdev->ops->get_mpath)
4722 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4725 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4733 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4734 dev, dst, next_hop, &pinfo) < 0) {
4739 return genlmsg_reply(msg, info);
4742 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4744 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4745 struct net_device *dev = info->user_ptr[1];
4747 u8 *next_hop = NULL;
4749 if (!info->attrs[NL80211_ATTR_MAC])
4752 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4755 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4756 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4758 if (!rdev->ops->change_mpath)
4761 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4764 return rdev_change_mpath(rdev, dev, dst, next_hop);
4767 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4769 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4770 struct net_device *dev = info->user_ptr[1];
4772 u8 *next_hop = NULL;
4774 if (!info->attrs[NL80211_ATTR_MAC])
4777 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4780 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4781 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4783 if (!rdev->ops->add_mpath)
4786 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4789 return rdev_add_mpath(rdev, dev, dst, next_hop);
4792 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4794 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4795 struct net_device *dev = info->user_ptr[1];
4798 if (info->attrs[NL80211_ATTR_MAC])
4799 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4801 if (!rdev->ops->del_mpath)
4804 return rdev_del_mpath(rdev, dev, dst);
4807 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4811 struct net_device *dev = info->user_ptr[1];
4812 struct mpath_info pinfo;
4813 struct sk_buff *msg;
4817 memset(&pinfo, 0, sizeof(pinfo));
4819 if (!info->attrs[NL80211_ATTR_MAC])
4822 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4824 if (!rdev->ops->get_mpp)
4827 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4830 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4834 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4838 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4839 dev, dst, mpp, &pinfo) < 0) {
4844 return genlmsg_reply(msg, info);
4847 static int nl80211_dump_mpp(struct sk_buff *skb,
4848 struct netlink_callback *cb)
4850 struct mpath_info pinfo;
4851 struct cfg80211_registered_device *rdev;
4852 struct wireless_dev *wdev;
4855 int path_idx = cb->args[2];
4858 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4862 if (!rdev->ops->dump_mpp) {
4867 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4873 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4880 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4881 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4882 wdev->netdev, dst, mpp,
4890 cb->args[2] = path_idx;
4893 nl80211_finish_wdev_dump(rdev);
4897 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4899 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4900 struct net_device *dev = info->user_ptr[1];
4901 struct wireless_dev *wdev = dev->ieee80211_ptr;
4902 struct bss_parameters params;
4905 memset(¶ms, 0, sizeof(params));
4906 /* default to not changing parameters */
4907 params.use_cts_prot = -1;
4908 params.use_short_preamble = -1;
4909 params.use_short_slot_time = -1;
4910 params.ap_isolate = -1;
4911 params.ht_opmode = -1;
4912 params.p2p_ctwindow = -1;
4913 params.p2p_opp_ps = -1;
4915 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4916 params.use_cts_prot =
4917 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4918 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4919 params.use_short_preamble =
4920 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4921 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4922 params.use_short_slot_time =
4923 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4924 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4925 params.basic_rates =
4926 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4927 params.basic_rates_len =
4928 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4930 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4931 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4932 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4934 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4936 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4937 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4939 params.p2p_ctwindow =
4940 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4941 if (params.p2p_ctwindow < 0)
4943 if (params.p2p_ctwindow != 0 &&
4944 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4948 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4951 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4953 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4956 params.p2p_opp_ps = tmp;
4957 if (params.p2p_opp_ps &&
4958 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4962 if (!rdev->ops->change_bss)
4965 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4966 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4970 err = rdev_change_bss(rdev, dev, ¶ms);
4976 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4980 enum nl80211_user_reg_hint_type user_reg_hint_type;
4985 * You should only get this when cfg80211 hasn't yet initialized
4986 * completely when built-in to the kernel right between the time
4987 * window between nl80211_init() and regulatory_init(), if that is
4990 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4991 return -EINPROGRESS;
4993 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4994 user_reg_hint_type =
4995 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4997 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4999 switch (user_reg_hint_type) {
5000 case NL80211_USER_REG_HINT_USER:
5001 case NL80211_USER_REG_HINT_CELL_BASE:
5002 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5005 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5006 return regulatory_hint_user(data, user_reg_hint_type);
5007 case NL80211_USER_REG_HINT_INDOOR:
5008 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5009 owner_nlportid = info->snd_portid;
5010 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5016 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5022 static int nl80211_get_mesh_config(struct sk_buff *skb,
5023 struct genl_info *info)
5025 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5026 struct net_device *dev = info->user_ptr[1];
5027 struct wireless_dev *wdev = dev->ieee80211_ptr;
5028 struct mesh_config cur_params;
5031 struct nlattr *pinfoattr;
5032 struct sk_buff *msg;
5034 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5037 if (!rdev->ops->get_mesh_config)
5041 /* If not connected, get default parameters */
5042 if (!wdev->mesh_id_len)
5043 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5045 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5051 /* Draw up a netlink message to send back */
5052 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5055 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5056 NL80211_CMD_GET_MESH_CONFIG);
5059 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5061 goto nla_put_failure;
5062 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5063 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5064 cur_params.dot11MeshRetryTimeout) ||
5065 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5066 cur_params.dot11MeshConfirmTimeout) ||
5067 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5068 cur_params.dot11MeshHoldingTimeout) ||
5069 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5070 cur_params.dot11MeshMaxPeerLinks) ||
5071 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5072 cur_params.dot11MeshMaxRetries) ||
5073 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5074 cur_params.dot11MeshTTL) ||
5075 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5076 cur_params.element_ttl) ||
5077 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5078 cur_params.auto_open_plinks) ||
5079 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5080 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5081 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5082 cur_params.dot11MeshHWMPmaxPREQretries) ||
5083 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5084 cur_params.path_refresh_time) ||
5085 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5086 cur_params.min_discovery_timeout) ||
5087 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5088 cur_params.dot11MeshHWMPactivePathTimeout) ||
5089 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5090 cur_params.dot11MeshHWMPpreqMinInterval) ||
5091 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5092 cur_params.dot11MeshHWMPperrMinInterval) ||
5093 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5094 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5095 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5096 cur_params.dot11MeshHWMPRootMode) ||
5097 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5098 cur_params.dot11MeshHWMPRannInterval) ||
5099 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5100 cur_params.dot11MeshGateAnnouncementProtocol) ||
5101 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5102 cur_params.dot11MeshForwarding) ||
5103 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5104 cur_params.rssi_threshold) ||
5105 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5106 cur_params.ht_opmode) ||
5107 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5108 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5109 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5110 cur_params.dot11MeshHWMProotInterval) ||
5111 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5112 cur_params.dot11MeshHWMPconfirmationInterval) ||
5113 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5114 cur_params.power_mode) ||
5115 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5116 cur_params.dot11MeshAwakeWindowDuration) ||
5117 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5118 cur_params.plink_timeout))
5119 goto nla_put_failure;
5120 nla_nest_end(msg, pinfoattr);
5121 genlmsg_end(msg, hdr);
5122 return genlmsg_reply(msg, info);
5125 genlmsg_cancel(msg, hdr);
5131 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5132 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5133 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5134 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5135 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5136 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5137 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5138 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5139 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5140 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5141 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5142 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5143 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5144 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5145 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5146 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5147 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5148 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5149 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5150 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5151 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5152 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5153 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5154 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5155 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5156 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5157 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5158 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5159 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5162 static const struct nla_policy
5163 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5164 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5165 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5166 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5167 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5168 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5169 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5170 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5171 .len = IEEE80211_MAX_DATA_LEN },
5172 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5175 static int nl80211_parse_mesh_config(struct genl_info *info,
5176 struct mesh_config *cfg,
5179 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5182 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5185 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5187 cfg->param = fn(tb[attr]); \
5188 mask |= (1 << (attr - 1)); \
5193 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5195 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5196 info->attrs[NL80211_ATTR_MESH_CONFIG],
5197 nl80211_meshconf_params_policy))
5200 /* This makes sure that there aren't more than 32 mesh config
5201 * parameters (otherwise our bitfield scheme would not work.) */
5202 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5204 /* Fill in the params struct */
5205 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5206 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5208 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5209 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5211 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5212 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5214 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5215 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5218 mask, NL80211_MESHCONF_MAX_RETRIES,
5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5221 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5222 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5223 mask, NL80211_MESHCONF_ELEMENT_TTL,
5225 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5226 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5228 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5230 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5232 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5233 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5235 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5236 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5238 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5239 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5241 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5243 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5245 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5247 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5249 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5251 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5254 dot11MeshHWMPnetDiameterTraversalTime,
5256 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5258 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5259 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5261 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5262 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5264 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5265 dot11MeshGateAnnouncementProtocol, 0, 1,
5266 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5268 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5269 mask, NL80211_MESHCONF_FORWARDING,
5271 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5272 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5274 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5275 mask, NL80211_MESHCONF_HT_OPMODE,
5277 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5279 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5281 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5282 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5284 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5285 dot11MeshHWMPconfirmationInterval,
5287 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5290 NL80211_MESH_POWER_ACTIVE,
5291 NL80211_MESH_POWER_MAX,
5292 mask, NL80211_MESHCONF_POWER_MODE,
5294 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5296 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5297 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5298 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5305 #undef FILL_IN_MESH_PARAM_IF_SET
5308 static int nl80211_parse_mesh_setup(struct genl_info *info,
5309 struct mesh_setup *setup)
5311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5312 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5314 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5316 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5317 info->attrs[NL80211_ATTR_MESH_SETUP],
5318 nl80211_mesh_setup_params_policy))
5321 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5322 setup->sync_method =
5323 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5324 IEEE80211_SYNC_METHOD_VENDOR :
5325 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5327 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5328 setup->path_sel_proto =
5329 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5330 IEEE80211_PATH_PROTOCOL_VENDOR :
5331 IEEE80211_PATH_PROTOCOL_HWMP;
5333 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5334 setup->path_metric =
5335 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5336 IEEE80211_PATH_METRIC_VENDOR :
5337 IEEE80211_PATH_METRIC_AIRTIME;
5340 if (tb[NL80211_MESH_SETUP_IE]) {
5341 struct nlattr *ieattr =
5342 tb[NL80211_MESH_SETUP_IE];
5343 if (!is_valid_ie_attr(ieattr))
5345 setup->ie = nla_data(ieattr);
5346 setup->ie_len = nla_len(ieattr);
5348 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5349 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5351 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5352 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5353 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5354 if (setup->is_secure)
5355 setup->user_mpm = true;
5357 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5358 if (!setup->user_mpm)
5361 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5367 static int nl80211_update_mesh_config(struct sk_buff *skb,
5368 struct genl_info *info)
5370 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5371 struct net_device *dev = info->user_ptr[1];
5372 struct wireless_dev *wdev = dev->ieee80211_ptr;
5373 struct mesh_config cfg;
5377 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5380 if (!rdev->ops->update_mesh_config)
5383 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5388 if (!wdev->mesh_id_len)
5392 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5399 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5400 struct sk_buff *msg)
5402 struct nlattr *nl_reg_rules;
5405 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5406 (regdom->dfs_region &&
5407 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5408 goto nla_put_failure;
5410 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5412 goto nla_put_failure;
5414 for (i = 0; i < regdom->n_reg_rules; i++) {
5415 struct nlattr *nl_reg_rule;
5416 const struct ieee80211_reg_rule *reg_rule;
5417 const struct ieee80211_freq_range *freq_range;
5418 const struct ieee80211_power_rule *power_rule;
5419 unsigned int max_bandwidth_khz;
5421 reg_rule = ®dom->reg_rules[i];
5422 freq_range = ®_rule->freq_range;
5423 power_rule = ®_rule->power_rule;
5425 nl_reg_rule = nla_nest_start(msg, i);
5427 goto nla_put_failure;
5429 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5430 if (!max_bandwidth_khz)
5431 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5434 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5436 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5437 freq_range->start_freq_khz) ||
5438 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5439 freq_range->end_freq_khz) ||
5440 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5441 max_bandwidth_khz) ||
5442 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5443 power_rule->max_antenna_gain) ||
5444 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5445 power_rule->max_eirp) ||
5446 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5447 reg_rule->dfs_cac_ms))
5448 goto nla_put_failure;
5450 nla_nest_end(msg, nl_reg_rule);
5453 nla_nest_end(msg, nl_reg_rules);
5460 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5462 const struct ieee80211_regdomain *regdom = NULL;
5463 struct cfg80211_registered_device *rdev;
5464 struct wiphy *wiphy = NULL;
5465 struct sk_buff *msg;
5468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5472 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5473 NL80211_CMD_GET_REG);
5477 if (info->attrs[NL80211_ATTR_WIPHY]) {
5480 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5483 return PTR_ERR(rdev);
5486 wiphy = &rdev->wiphy;
5487 self_managed = wiphy->regulatory_flags &
5488 REGULATORY_WIPHY_SELF_MANAGED;
5489 regdom = get_wiphy_regdom(wiphy);
5491 /* a self-managed-reg device must have a private regdom */
5492 if (WARN_ON(!regdom && self_managed)) {
5498 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5499 goto nla_put_failure;
5502 if (!wiphy && reg_last_request_cell_base() &&
5503 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5504 NL80211_USER_REG_HINT_CELL_BASE))
5505 goto nla_put_failure;
5510 regdom = rcu_dereference(cfg80211_regdomain);
5512 if (nl80211_put_regdom(regdom, msg))
5513 goto nla_put_failure_rcu;
5517 genlmsg_end(msg, hdr);
5518 return genlmsg_reply(msg, info);
5520 nla_put_failure_rcu:
5523 genlmsg_cancel(msg, hdr);
5529 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5530 u32 seq, int flags, struct wiphy *wiphy,
5531 const struct ieee80211_regdomain *regdom)
5533 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5534 NL80211_CMD_GET_REG);
5539 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5541 if (nl80211_put_regdom(regdom, msg))
5542 goto nla_put_failure;
5544 if (!wiphy && reg_last_request_cell_base() &&
5545 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5546 NL80211_USER_REG_HINT_CELL_BASE))
5547 goto nla_put_failure;
5550 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5551 goto nla_put_failure;
5553 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5554 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5555 goto nla_put_failure;
5557 genlmsg_end(msg, hdr);
5561 genlmsg_cancel(msg, hdr);
5565 static int nl80211_get_reg_dump(struct sk_buff *skb,
5566 struct netlink_callback *cb)
5568 const struct ieee80211_regdomain *regdom = NULL;
5569 struct cfg80211_registered_device *rdev;
5570 int err, reg_idx, start = cb->args[2];
5574 if (cfg80211_regdomain && start == 0) {
5575 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5577 rtnl_dereference(cfg80211_regdomain));
5582 /* the global regdom is idx 0 */
5584 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5585 regdom = get_wiphy_regdom(&rdev->wiphy);
5589 if (++reg_idx <= start)
5592 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5593 NLM_F_MULTI, &rdev->wiphy, regdom);
5600 cb->args[2] = reg_idx;
5607 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
5608 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5609 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5610 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5611 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5612 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5613 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5614 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5615 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5618 static int parse_reg_rule(struct nlattr *tb[],
5619 struct ieee80211_reg_rule *reg_rule)
5621 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
5622 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
5624 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5626 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5628 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5630 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5632 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5635 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5637 freq_range->start_freq_khz =
5638 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5639 freq_range->end_freq_khz =
5640 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5641 freq_range->max_bandwidth_khz =
5642 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5644 power_rule->max_eirp =
5645 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5647 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5648 power_rule->max_antenna_gain =
5649 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5651 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5652 reg_rule->dfs_cac_ms =
5653 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5658 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5660 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5661 struct nlattr *nl_reg_rule;
5663 int rem_reg_rules, r;
5664 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5665 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5666 struct ieee80211_regdomain *rd;
5668 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5671 if (!info->attrs[NL80211_ATTR_REG_RULES])
5674 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5676 if (info->attrs[NL80211_ATTR_DFS_REGION])
5677 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5679 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5682 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5686 if (!reg_is_valid_request(alpha2))
5689 size_of_regd = sizeof(struct ieee80211_regdomain) +
5690 num_rules * sizeof(struct ieee80211_reg_rule);
5692 rd = kzalloc(size_of_regd, GFP_KERNEL);
5696 rd->n_reg_rules = num_rules;
5697 rd->alpha2[0] = alpha2[0];
5698 rd->alpha2[1] = alpha2[1];
5701 * Disable DFS master mode if the DFS region was
5702 * not supported or known on this kernel.
5704 if (reg_supported_dfs_region(dfs_region))
5705 rd->dfs_region = dfs_region;
5707 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5709 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5710 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5714 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5720 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5726 r = set_regdom(rd, REGD_SOURCE_CRDA);
5727 /* set_regdom took ownership */
5734 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
5736 static int validate_scan_freqs(struct nlattr *freqs)
5738 struct nlattr *attr1, *attr2;
5739 int n_channels = 0, tmp1, tmp2;
5741 nla_for_each_nested(attr1, freqs, tmp1) {
5744 * Some hardware has a limited channel list for
5745 * scanning, and it is pretty much nonsensical
5746 * to scan for a channel twice, so disallow that
5747 * and don't require drivers to check that the
5748 * channel list they get isn't longer than what
5749 * they can scan, as long as they can scan all
5750 * the channels they registered at once.
5752 nla_for_each_nested(attr2, freqs, tmp2)
5753 if (attr1 != attr2 &&
5754 nla_get_u32(attr1) == nla_get_u32(attr2))
5761 static int nl80211_parse_random_mac(struct nlattr **attrs,
5762 u8 *mac_addr, u8 *mac_addr_mask)
5766 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5767 eth_zero_addr(mac_addr);
5768 eth_zero_addr(mac_addr_mask);
5770 mac_addr_mask[0] = 0x3;
5775 /* need both or none */
5776 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5779 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5780 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5782 /* don't allow or configure an mcast address */
5783 if (!is_multicast_ether_addr(mac_addr_mask) ||
5784 is_multicast_ether_addr(mac_addr))
5788 * allow users to pass a MAC address that has bits set outside
5789 * of the mask, but don't bother drivers with having to deal
5792 for (i = 0; i < ETH_ALEN; i++)
5793 mac_addr[i] &= mac_addr_mask[i];
5798 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5800 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5801 struct wireless_dev *wdev = info->user_ptr[1];
5802 struct cfg80211_scan_request *request;
5803 struct nlattr *attr;
5804 struct wiphy *wiphy;
5805 int err, tmp, n_ssids = 0, n_channels, i;
5808 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5811 wiphy = &rdev->wiphy;
5813 if (!rdev->ops->scan)
5816 if (rdev->scan_req || rdev->scan_msg) {
5821 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5822 n_channels = validate_scan_freqs(
5823 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5829 n_channels = ieee80211_get_num_supported_channels(wiphy);
5832 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5833 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5836 if (n_ssids > wiphy->max_scan_ssids) {
5841 if (info->attrs[NL80211_ATTR_IE])
5842 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5846 if (ie_len > wiphy->max_scan_ie_len) {
5851 request = kzalloc(sizeof(*request)
5852 + sizeof(*request->ssids) * n_ssids
5853 + sizeof(*request->channels) * n_channels
5854 + ie_len, GFP_KERNEL);
5861 request->ssids = (void *)&request->channels[n_channels];
5862 request->n_ssids = n_ssids;
5865 request->ie = (void *)(request->ssids + n_ssids);
5867 request->ie = (void *)(request->channels + n_channels);
5871 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5872 /* user specified, bail out if channel not found */
5873 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5874 struct ieee80211_channel *chan;
5876 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5883 /* ignore disabled channels */
5884 if (chan->flags & IEEE80211_CHAN_DISABLED)
5887 request->channels[i] = chan;
5891 enum ieee80211_band band;
5894 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5896 if (!wiphy->bands[band])
5898 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5899 struct ieee80211_channel *chan;
5901 chan = &wiphy->bands[band]->channels[j];
5903 if (chan->flags & IEEE80211_CHAN_DISABLED)
5906 request->channels[i] = chan;
5917 request->n_channels = i;
5921 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5922 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5926 request->ssids[i].ssid_len = nla_len(attr);
5927 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5932 if (info->attrs[NL80211_ATTR_IE]) {
5933 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5934 memcpy((void *)request->ie,
5935 nla_data(info->attrs[NL80211_ATTR_IE]),
5939 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5940 if (wiphy->bands[i])
5942 (1 << wiphy->bands[i]->n_bitrates) - 1;
5944 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5945 nla_for_each_nested(attr,
5946 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5948 enum ieee80211_band band = nla_type(attr);
5950 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5955 if (!wiphy->bands[band])
5958 err = ieee80211_get_ratemask(wiphy->bands[band],
5961 &request->rates[band]);
5967 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5968 request->flags = nla_get_u32(
5969 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5970 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5971 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5976 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5977 if (!(wiphy->features &
5978 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5983 if (wdev->current_bss) {
5988 err = nl80211_parse_random_mac(info->attrs,
5990 request->mac_addr_mask);
5997 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5999 request->wdev = wdev;
6000 request->wiphy = &rdev->wiphy;
6001 request->scan_start = jiffies;
6003 rdev->scan_req = request;
6004 err = rdev_scan(rdev, request);
6007 nl80211_send_scan_start(rdev, wdev);
6009 dev_hold(wdev->netdev);
6012 rdev->scan_req = NULL;
6020 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6022 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6023 struct wireless_dev *wdev = info->user_ptr[1];
6025 if (!rdev->ops->abort_scan)
6031 if (!rdev->scan_req)
6034 rdev_abort_scan(rdev, wdev);
6039 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6040 struct cfg80211_sched_scan_request *request,
6041 struct nlattr **attrs)
6043 int tmp, err, i = 0;
6044 struct nlattr *attr;
6046 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6050 * If scan plans are not specified,
6051 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6052 * case one scan plan will be set with the specified scan
6053 * interval and infinite number of iterations.
6055 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6058 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6062 request->scan_plans[0].interval =
6063 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6064 if (!request->scan_plans[0].interval)
6067 if (request->scan_plans[0].interval >
6068 wiphy->max_sched_scan_plan_interval)
6069 request->scan_plans[0].interval =
6070 wiphy->max_sched_scan_plan_interval;
6075 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6076 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6078 if (WARN_ON(i >= n_plans))
6081 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6082 nla_data(attr), nla_len(attr),
6083 nl80211_plan_policy);
6087 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6090 request->scan_plans[i].interval =
6091 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6092 if (!request->scan_plans[i].interval ||
6093 request->scan_plans[i].interval >
6094 wiphy->max_sched_scan_plan_interval)
6097 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6098 request->scan_plans[i].iterations =
6099 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6100 if (!request->scan_plans[i].iterations ||
6101 (request->scan_plans[i].iterations >
6102 wiphy->max_sched_scan_plan_iterations))
6104 } else if (i < n_plans - 1) {
6106 * All scan plans but the last one must specify
6107 * a finite number of iterations
6116 * The last scan plan must not specify the number of
6117 * iterations, it is supposed to run infinitely
6119 if (request->scan_plans[n_plans - 1].iterations)
6125 static struct cfg80211_sched_scan_request *
6126 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6127 struct nlattr **attrs)
6129 struct cfg80211_sched_scan_request *request;
6130 struct nlattr *attr;
6131 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6132 enum ieee80211_band band;
6134 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6135 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6137 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6138 return ERR_PTR(-EINVAL);
6140 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6141 n_channels = validate_scan_freqs(
6142 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6144 return ERR_PTR(-EINVAL);
6146 n_channels = ieee80211_get_num_supported_channels(wiphy);
6149 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6150 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6154 if (n_ssids > wiphy->max_sched_scan_ssids)
6155 return ERR_PTR(-EINVAL);
6158 * First, count the number of 'real' matchsets. Due to an issue with
6159 * the old implementation, matchsets containing only the RSSI attribute
6160 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6161 * RSSI for all matchsets, rather than their own matchset for reporting
6162 * all APs with a strong RSSI. This is needed to be compatible with
6163 * older userspace that treated a matchset with only the RSSI as the
6164 * global RSSI for all other matchsets - if there are other matchsets.
6166 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6167 nla_for_each_nested(attr,
6168 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6170 struct nlattr *rssi;
6172 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6173 nla_data(attr), nla_len(attr),
6174 nl80211_match_policy);
6176 return ERR_PTR(err);
6177 /* add other standalone attributes here */
6178 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6182 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6184 default_match_rssi = nla_get_s32(rssi);
6188 /* However, if there's no other matchset, add the RSSI one */
6189 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6192 if (n_match_sets > wiphy->max_match_sets)
6193 return ERR_PTR(-EINVAL);
6195 if (attrs[NL80211_ATTR_IE])
6196 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6200 if (ie_len > wiphy->max_sched_scan_ie_len)
6201 return ERR_PTR(-EINVAL);
6203 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6205 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6206 * each scan plan already specifies its own interval
6208 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6209 return ERR_PTR(-EINVAL);
6211 nla_for_each_nested(attr,
6212 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6216 * The scan interval attribute is kept for backward
6217 * compatibility. If no scan plans are specified and sched scan
6218 * interval is specified, one scan plan will be set with this
6219 * scan interval and infinite number of iterations.
6221 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6222 return ERR_PTR(-EINVAL);
6227 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6228 return ERR_PTR(-EINVAL);
6230 request = kzalloc(sizeof(*request)
6231 + sizeof(*request->ssids) * n_ssids
6232 + sizeof(*request->match_sets) * n_match_sets
6233 + sizeof(*request->scan_plans) * n_plans
6234 + sizeof(*request->channels) * n_channels
6235 + ie_len, GFP_KERNEL);
6237 return ERR_PTR(-ENOMEM);
6240 request->ssids = (void *)&request->channels[n_channels];
6241 request->n_ssids = n_ssids;
6244 request->ie = (void *)(request->ssids + n_ssids);
6246 request->ie = (void *)(request->channels + n_channels);
6251 request->match_sets = (void *)(request->ie + ie_len);
6253 request->match_sets =
6254 (void *)(request->ssids + n_ssids);
6256 request->match_sets =
6257 (void *)(request->channels + n_channels);
6259 request->n_match_sets = n_match_sets;
6262 request->scan_plans = (void *)(request->match_sets +
6264 else if (request->ie)
6265 request->scan_plans = (void *)(request->ie + ie_len);
6267 request->scan_plans = (void *)(request->ssids + n_ssids);
6269 request->scan_plans = (void *)(request->channels + n_channels);
6271 request->n_scan_plans = n_plans;
6274 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6275 /* user specified, bail out if channel not found */
6276 nla_for_each_nested(attr,
6277 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6279 struct ieee80211_channel *chan;
6281 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6288 /* ignore disabled channels */
6289 if (chan->flags & IEEE80211_CHAN_DISABLED)
6292 request->channels[i] = chan;
6297 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6299 if (!wiphy->bands[band])
6301 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6302 struct ieee80211_channel *chan;
6304 chan = &wiphy->bands[band]->channels[j];
6306 if (chan->flags & IEEE80211_CHAN_DISABLED)
6309 request->channels[i] = chan;
6320 request->n_channels = i;
6324 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6326 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6330 request->ssids[i].ssid_len = nla_len(attr);
6331 memcpy(request->ssids[i].ssid, nla_data(attr),
6338 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6339 nla_for_each_nested(attr,
6340 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6342 struct nlattr *ssid, *rssi;
6344 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6345 nla_data(attr), nla_len(attr),
6346 nl80211_match_policy);
6349 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6351 if (WARN_ON(i >= n_match_sets)) {
6352 /* this indicates a programming error,
6353 * the loop above should have verified
6360 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6364 memcpy(request->match_sets[i].ssid.ssid,
6365 nla_data(ssid), nla_len(ssid));
6366 request->match_sets[i].ssid.ssid_len =
6368 /* special attribute - old implemenation w/a */
6369 request->match_sets[i].rssi_thold =
6371 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6373 request->match_sets[i].rssi_thold =
6379 /* there was no other matchset, so the RSSI one is alone */
6380 if (i == 0 && n_match_sets)
6381 request->match_sets[0].rssi_thold = default_match_rssi;
6383 request->min_rssi_thold = INT_MAX;
6384 for (i = 0; i < n_match_sets; i++)
6385 request->min_rssi_thold =
6386 min(request->match_sets[i].rssi_thold,
6387 request->min_rssi_thold);
6389 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6393 request->ie_len = ie_len;
6394 memcpy((void *)request->ie,
6395 nla_data(attrs[NL80211_ATTR_IE]),
6399 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6400 request->flags = nla_get_u32(
6401 attrs[NL80211_ATTR_SCAN_FLAGS]);
6402 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6403 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6408 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6409 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6411 if (!wdev) /* must be net-detect */
6412 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6414 if (!(wiphy->features & flg)) {
6419 if (wdev && wdev->current_bss) {
6424 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6425 request->mac_addr_mask);
6431 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6433 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6435 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6439 request->scan_start = jiffies;
6445 return ERR_PTR(err);
6448 static int nl80211_start_sched_scan(struct sk_buff *skb,
6449 struct genl_info *info)
6451 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6452 struct net_device *dev = info->user_ptr[1];
6453 struct wireless_dev *wdev = dev->ieee80211_ptr;
6454 struct cfg80211_sched_scan_request *sched_scan_req;
6457 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6458 !rdev->ops->sched_scan_start)
6461 if (rdev->sched_scan_req)
6462 return -EINPROGRESS;
6464 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6467 err = PTR_ERR_OR_ZERO(sched_scan_req);
6471 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6475 sched_scan_req->dev = dev;
6476 sched_scan_req->wiphy = &rdev->wiphy;
6478 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6479 sched_scan_req->owner_nlportid = info->snd_portid;
6481 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6483 nl80211_send_sched_scan(rdev, dev,
6484 NL80211_CMD_START_SCHED_SCAN);
6488 kfree(sched_scan_req);
6493 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6494 struct genl_info *info)
6496 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6498 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6499 !rdev->ops->sched_scan_stop)
6502 return __cfg80211_stop_sched_scan(rdev, false);
6505 static int nl80211_start_radar_detection(struct sk_buff *skb,
6506 struct genl_info *info)
6508 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6509 struct net_device *dev = info->user_ptr[1];
6510 struct wireless_dev *wdev = dev->ieee80211_ptr;
6511 struct cfg80211_chan_def chandef;
6512 enum nl80211_dfs_regions dfs_region;
6513 unsigned int cac_time_ms;
6516 dfs_region = reg_get_dfs_region(wdev->wiphy);
6517 if (dfs_region == NL80211_DFS_UNSET)
6520 err = nl80211_parse_chandef(rdev, info, &chandef);
6524 if (netif_carrier_ok(dev))
6527 if (wdev->cac_started)
6530 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6538 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6541 if (!rdev->ops->start_radar_detection)
6544 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6545 if (WARN_ON(!cac_time_ms))
6546 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6548 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
6550 wdev->chandef = chandef;
6551 wdev->cac_started = true;
6552 wdev->cac_start_time = jiffies;
6553 wdev->cac_time_ms = cac_time_ms;
6558 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6560 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6561 struct net_device *dev = info->user_ptr[1];
6562 struct wireless_dev *wdev = dev->ieee80211_ptr;
6563 struct cfg80211_csa_settings params;
6564 /* csa_attrs is defined static to avoid waste of stack size - this
6565 * function is called under RTNL lock, so this should not be a problem.
6567 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6569 bool need_new_beacon = false;
6573 if (!rdev->ops->channel_switch ||
6574 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6577 switch (dev->ieee80211_ptr->iftype) {
6578 case NL80211_IFTYPE_AP:
6579 case NL80211_IFTYPE_P2P_GO:
6580 need_new_beacon = true;
6582 /* useless if AP is not running */
6583 if (!wdev->beacon_interval)
6586 case NL80211_IFTYPE_ADHOC:
6587 if (!wdev->ssid_len)
6590 case NL80211_IFTYPE_MESH_POINT:
6591 if (!wdev->mesh_id_len)
6598 memset(¶ms, 0, sizeof(params));
6600 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6601 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6604 /* only important for AP, IBSS and mesh create IEs internally */
6605 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6608 /* Even though the attribute is u32, the specification says
6609 * u8, so let's make sure we don't overflow.
6611 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6615 params.count = cs_count;
6617 if (!need_new_beacon)
6620 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6624 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6625 info->attrs[NL80211_ATTR_CSA_IES],
6630 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6634 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6637 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6638 if (!len || (len % sizeof(u16)))
6641 params.n_counter_offsets_beacon = len / sizeof(u16);
6642 if (rdev->wiphy.max_num_csa_counters &&
6643 (params.n_counter_offsets_beacon >
6644 rdev->wiphy.max_num_csa_counters))
6647 params.counter_offsets_beacon =
6648 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6650 /* sanity checks - counters should fit and be the same */
6651 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6652 u16 offset = params.counter_offsets_beacon[i];
6654 if (offset >= params.beacon_csa.tail_len)
6657 if (params.beacon_csa.tail[offset] != params.count)
6661 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6662 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6663 if (!len || (len % sizeof(u16)))
6666 params.n_counter_offsets_presp = len / sizeof(u16);
6667 if (rdev->wiphy.max_num_csa_counters &&
6668 (params.n_counter_offsets_beacon >
6669 rdev->wiphy.max_num_csa_counters))
6672 params.counter_offsets_presp =
6673 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6675 /* sanity checks - counters should fit and be the same */
6676 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6677 u16 offset = params.counter_offsets_presp[i];
6679 if (offset >= params.beacon_csa.probe_resp_len)
6682 if (params.beacon_csa.probe_resp[offset] !=
6689 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6693 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6697 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6704 params.radar_required = true;
6706 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6707 params.block_tx = true;
6710 err = rdev_channel_switch(rdev, dev, ¶ms);
6716 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6718 struct cfg80211_registered_device *rdev,
6719 struct wireless_dev *wdev,
6720 struct cfg80211_internal_bss *intbss)
6722 struct cfg80211_bss *res = &intbss->pub;
6723 const struct cfg80211_bss_ies *ies;
6727 ASSERT_WDEV_LOCK(wdev);
6729 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6730 NL80211_CMD_NEW_SCAN_RESULTS);
6734 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6736 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6737 goto nla_put_failure;
6739 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6740 goto nla_put_failure;
6741 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6742 goto nla_put_failure;
6744 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6746 goto nla_put_failure;
6747 if ((!is_zero_ether_addr(res->bssid) &&
6748 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6749 goto nla_put_failure;
6752 /* indicate whether we have probe response data or not */
6753 if (rcu_access_pointer(res->proberesp_ies) &&
6754 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6755 goto fail_unlock_rcu;
6757 /* this pointer prefers to be pointed to probe response data
6758 * but is always valid
6760 ies = rcu_dereference(res->ies);
6762 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6763 goto fail_unlock_rcu;
6764 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6765 ies->len, ies->data))
6766 goto fail_unlock_rcu;
6769 /* and this pointer is always (unless driver didn't know) beacon data */
6770 ies = rcu_dereference(res->beacon_ies);
6771 if (ies && ies->from_beacon) {
6772 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6773 goto fail_unlock_rcu;
6774 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6775 ies->len, ies->data))
6776 goto fail_unlock_rcu;
6780 if (res->beacon_interval &&
6781 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6782 goto nla_put_failure;
6783 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6784 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6785 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6786 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6787 jiffies_to_msecs(jiffies - intbss->ts)))
6788 goto nla_put_failure;
6790 if (intbss->ts_boottime &&
6791 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6792 intbss->ts_boottime))
6793 goto nla_put_failure;
6795 switch (rdev->wiphy.signal_type) {
6796 case CFG80211_SIGNAL_TYPE_MBM:
6797 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6798 goto nla_put_failure;
6800 case CFG80211_SIGNAL_TYPE_UNSPEC:
6801 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6802 goto nla_put_failure;
6808 switch (wdev->iftype) {
6809 case NL80211_IFTYPE_P2P_CLIENT:
6810 case NL80211_IFTYPE_STATION:
6811 if (intbss == wdev->current_bss &&
6812 nla_put_u32(msg, NL80211_BSS_STATUS,
6813 NL80211_BSS_STATUS_ASSOCIATED))
6814 goto nla_put_failure;
6816 case NL80211_IFTYPE_ADHOC:
6817 if (intbss == wdev->current_bss &&
6818 nla_put_u32(msg, NL80211_BSS_STATUS,
6819 NL80211_BSS_STATUS_IBSS_JOINED))
6820 goto nla_put_failure;
6826 nla_nest_end(msg, bss);
6828 genlmsg_end(msg, hdr);
6834 genlmsg_cancel(msg, hdr);
6838 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6840 struct cfg80211_registered_device *rdev;
6841 struct cfg80211_internal_bss *scan;
6842 struct wireless_dev *wdev;
6843 int start = cb->args[2], idx = 0;
6846 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6851 spin_lock_bh(&rdev->bss_lock);
6852 cfg80211_bss_expire(rdev);
6854 cb->seq = rdev->bss_generation;
6856 list_for_each_entry(scan, &rdev->bss_list, list) {
6859 if (nl80211_send_bss(skb, cb,
6860 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6861 rdev, wdev, scan) < 0) {
6867 spin_unlock_bh(&rdev->bss_lock);
6871 nl80211_finish_wdev_dump(rdev);
6876 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6877 int flags, struct net_device *dev,
6878 bool allow_radio_stats,
6879 struct survey_info *survey)
6882 struct nlattr *infoattr;
6884 /* skip radio stats if userspace didn't request them */
6885 if (!survey->channel && !allow_radio_stats)
6888 hdr = nl80211hdr_put(msg, portid, seq, flags,
6889 NL80211_CMD_NEW_SURVEY_RESULTS);
6893 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6894 goto nla_put_failure;
6896 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6898 goto nla_put_failure;
6900 if (survey->channel &&
6901 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6902 survey->channel->center_freq))
6903 goto nla_put_failure;
6905 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6906 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6907 goto nla_put_failure;
6908 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6909 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6910 goto nla_put_failure;
6911 if ((survey->filled & SURVEY_INFO_TIME) &&
6912 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6914 goto nla_put_failure;
6915 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6916 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6918 goto nla_put_failure;
6919 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6920 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6921 survey->time_ext_busy))
6922 goto nla_put_failure;
6923 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6924 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6926 goto nla_put_failure;
6927 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6928 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6930 goto nla_put_failure;
6931 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6932 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6934 goto nla_put_failure;
6936 nla_nest_end(msg, infoattr);
6938 genlmsg_end(msg, hdr);
6942 genlmsg_cancel(msg, hdr);
6946 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
6948 struct survey_info survey;
6949 struct cfg80211_registered_device *rdev;
6950 struct wireless_dev *wdev;
6951 int survey_idx = cb->args[2];
6955 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6959 /* prepare_wdev_dump parsed the attributes */
6960 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6962 if (!wdev->netdev) {
6967 if (!rdev->ops->dump_survey) {
6973 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6979 /* don't send disabled channels, but do send non-channel data */
6980 if (survey.channel &&
6981 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
6986 if (nl80211_send_survey(skb,
6987 NETLINK_CB(cb->skb).portid,
6988 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6989 wdev->netdev, radio_stats, &survey) < 0)
6995 cb->args[2] = survey_idx;
6998 nl80211_finish_wdev_dump(rdev);
7002 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
7004 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7005 NL80211_WPA_VERSION_2));
7008 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7010 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7011 struct net_device *dev = info->user_ptr[1];
7012 struct ieee80211_channel *chan;
7013 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7014 int err, ssid_len, ie_len = 0, sae_data_len = 0;
7015 enum nl80211_auth_type auth_type;
7016 struct key_parse key;
7017 bool local_state_change;
7019 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7022 if (!info->attrs[NL80211_ATTR_MAC])
7025 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7028 if (!info->attrs[NL80211_ATTR_SSID])
7031 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7034 err = nl80211_parse_key(info, &key);
7039 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7041 if (!key.p.key || !key.p.key_len)
7043 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7044 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7045 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7046 key.p.key_len != WLAN_KEY_LEN_WEP104))
7058 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7059 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7068 if (!rdev->ops->auth)
7071 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7072 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7075 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7076 chan = nl80211_get_valid_chan(&rdev->wiphy,
7077 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7081 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7082 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7084 if (info->attrs[NL80211_ATTR_IE]) {
7085 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7086 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7089 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7090 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7093 if (auth_type == NL80211_AUTHTYPE_SAE &&
7094 !info->attrs[NL80211_ATTR_SAE_DATA])
7097 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7098 if (auth_type != NL80211_AUTHTYPE_SAE)
7100 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7101 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7102 /* need to include at least Auth Transaction and Status Code */
7103 if (sae_data_len < 4)
7107 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7110 * Since we no longer track auth state, ignore
7111 * requests to only change local state.
7113 if (local_state_change)
7116 wdev_lock(dev->ieee80211_ptr);
7117 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7118 ssid, ssid_len, ie, ie_len,
7119 key.p.key, key.p.key_len, key.idx,
7120 sae_data, sae_data_len);
7121 wdev_unlock(dev->ieee80211_ptr);
7125 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7126 struct genl_info *info,
7127 struct cfg80211_crypto_settings *settings,
7130 memset(settings, 0, sizeof(*settings));
7132 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7134 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7136 proto = nla_get_u16(
7137 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7138 settings->control_port_ethertype = cpu_to_be16(proto);
7139 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7142 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7143 settings->control_port_no_encrypt = true;
7145 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7147 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7151 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7152 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7153 settings->n_ciphers_pairwise = len / sizeof(u32);
7155 if (len % sizeof(u32))
7158 if (settings->n_ciphers_pairwise > cipher_limit)
7161 memcpy(settings->ciphers_pairwise, data, len);
7163 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7164 if (!cfg80211_supported_cipher_suite(
7166 settings->ciphers_pairwise[i]))
7170 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7171 settings->cipher_group =
7172 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7173 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7174 settings->cipher_group))
7178 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7179 settings->wpa_versions =
7180 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7181 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7185 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7189 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7190 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7191 settings->n_akm_suites = len / sizeof(u32);
7193 if (len % sizeof(u32))
7196 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7199 memcpy(settings->akm_suites, data, len);
7205 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7207 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7208 struct net_device *dev = info->user_ptr[1];
7209 struct ieee80211_channel *chan;
7210 struct cfg80211_assoc_request req = {};
7211 const u8 *bssid, *ssid;
7212 int err, ssid_len = 0;
7214 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7217 if (!info->attrs[NL80211_ATTR_MAC] ||
7218 !info->attrs[NL80211_ATTR_SSID] ||
7219 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7222 if (!rdev->ops->assoc)
7225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7226 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7229 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7231 chan = nl80211_get_valid_chan(&rdev->wiphy,
7232 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7236 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7237 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7239 if (info->attrs[NL80211_ATTR_IE]) {
7240 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7241 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7244 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7245 enum nl80211_mfp mfp =
7246 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7247 if (mfp == NL80211_MFP_REQUIRED)
7249 else if (mfp != NL80211_MFP_NO)
7253 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7254 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7256 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7257 req.flags |= ASSOC_REQ_DISABLE_HT;
7259 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7260 memcpy(&req.ht_capa_mask,
7261 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7262 sizeof(req.ht_capa_mask));
7264 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7265 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7267 memcpy(&req.ht_capa,
7268 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7269 sizeof(req.ht_capa));
7272 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7273 req.flags |= ASSOC_REQ_DISABLE_VHT;
7275 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7276 memcpy(&req.vht_capa_mask,
7277 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7278 sizeof(req.vht_capa_mask));
7280 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7281 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7283 memcpy(&req.vht_capa,
7284 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7285 sizeof(req.vht_capa));
7288 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7289 if (!(rdev->wiphy.features &
7290 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7291 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7293 req.flags |= ASSOC_REQ_USE_RRM;
7296 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7298 wdev_lock(dev->ieee80211_ptr);
7299 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7300 ssid, ssid_len, &req);
7301 wdev_unlock(dev->ieee80211_ptr);
7307 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7309 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7310 struct net_device *dev = info->user_ptr[1];
7311 const u8 *ie = NULL, *bssid;
7312 int ie_len = 0, err;
7314 bool local_state_change;
7316 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7319 if (!info->attrs[NL80211_ATTR_MAC])
7322 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7325 if (!rdev->ops->deauth)
7328 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7329 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7332 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7334 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7335 if (reason_code == 0) {
7336 /* Reason Code 0 is reserved */
7340 if (info->attrs[NL80211_ATTR_IE]) {
7341 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7342 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7345 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7347 wdev_lock(dev->ieee80211_ptr);
7348 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7349 local_state_change);
7350 wdev_unlock(dev->ieee80211_ptr);
7354 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7356 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7357 struct net_device *dev = info->user_ptr[1];
7358 const u8 *ie = NULL, *bssid;
7359 int ie_len = 0, err;
7361 bool local_state_change;
7363 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7366 if (!info->attrs[NL80211_ATTR_MAC])
7369 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7372 if (!rdev->ops->disassoc)
7375 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7376 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7379 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7381 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7382 if (reason_code == 0) {
7383 /* Reason Code 0 is reserved */
7387 if (info->attrs[NL80211_ATTR_IE]) {
7388 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7389 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7392 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7394 wdev_lock(dev->ieee80211_ptr);
7395 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7396 local_state_change);
7397 wdev_unlock(dev->ieee80211_ptr);
7402 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7403 int mcast_rate[IEEE80211_NUM_BANDS],
7406 struct wiphy *wiphy = &rdev->wiphy;
7410 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7411 struct ieee80211_supported_band *sband;
7413 sband = wiphy->bands[band];
7417 for (i = 0; i < sband->n_bitrates; i++) {
7418 if (sband->bitrates[i].bitrate == rateval) {
7419 mcast_rate[band] = i + 1;
7429 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7431 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7432 struct net_device *dev = info->user_ptr[1];
7433 struct cfg80211_ibss_params ibss;
7434 struct wiphy *wiphy;
7435 struct cfg80211_cached_keys *connkeys = NULL;
7438 memset(&ibss, 0, sizeof(ibss));
7440 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7443 if (!info->attrs[NL80211_ATTR_SSID] ||
7444 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7447 ibss.beacon_interval = 100;
7449 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7450 ibss.beacon_interval =
7451 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7452 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7456 if (!rdev->ops->join_ibss)
7459 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7462 wiphy = &rdev->wiphy;
7464 if (info->attrs[NL80211_ATTR_MAC]) {
7465 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7467 if (!is_valid_ether_addr(ibss.bssid))
7470 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7471 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7473 if (info->attrs[NL80211_ATTR_IE]) {
7474 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7475 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7478 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7482 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7483 NL80211_IFTYPE_ADHOC))
7486 switch (ibss.chandef.width) {
7487 case NL80211_CHAN_WIDTH_5:
7488 case NL80211_CHAN_WIDTH_10:
7489 case NL80211_CHAN_WIDTH_20_NOHT:
7491 case NL80211_CHAN_WIDTH_20:
7492 case NL80211_CHAN_WIDTH_40:
7493 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7496 case NL80211_CHAN_WIDTH_80:
7497 case NL80211_CHAN_WIDTH_80P80:
7498 case NL80211_CHAN_WIDTH_160:
7499 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7501 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7502 NL80211_EXT_FEATURE_VHT_IBSS))
7509 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7510 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7512 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7514 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7516 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7517 struct ieee80211_supported_band *sband =
7518 wiphy->bands[ibss.chandef.chan->band];
7520 err = ieee80211_get_ratemask(sband, rates, n_rates,
7526 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7527 memcpy(&ibss.ht_capa_mask,
7528 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7529 sizeof(ibss.ht_capa_mask));
7531 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7532 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7534 memcpy(&ibss.ht_capa,
7535 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7536 sizeof(ibss.ht_capa));
7539 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7540 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7541 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7544 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7547 connkeys = nl80211_parse_connkeys(rdev,
7548 info->attrs[NL80211_ATTR_KEYS],
7550 if (IS_ERR(connkeys))
7551 return PTR_ERR(connkeys);
7553 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7561 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7563 ibss.userspace_handles_dfs =
7564 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7566 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7572 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7574 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7575 struct net_device *dev = info->user_ptr[1];
7577 if (!rdev->ops->leave_ibss)
7580 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7583 return cfg80211_leave_ibss(rdev, dev, false);
7586 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7588 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7589 struct net_device *dev = info->user_ptr[1];
7590 int mcast_rate[IEEE80211_NUM_BANDS];
7594 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7595 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7596 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7599 if (!rdev->ops->set_mcast_rate)
7602 memset(mcast_rate, 0, sizeof(mcast_rate));
7604 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7607 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7608 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7611 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
7616 static struct sk_buff *
7617 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7618 struct wireless_dev *wdev, int approxlen,
7619 u32 portid, u32 seq, enum nl80211_commands cmd,
7620 enum nl80211_attrs attr,
7621 const struct nl80211_vendor_cmd_info *info,
7624 struct sk_buff *skb;
7626 struct nlattr *data;
7628 skb = nlmsg_new(approxlen + 100, gfp);
7632 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7638 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7639 goto nla_put_failure;
7642 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7644 goto nla_put_failure;
7645 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7647 goto nla_put_failure;
7651 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7653 goto nla_put_failure;
7655 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7656 wdev->netdev->ifindex))
7657 goto nla_put_failure;
7660 data = nla_nest_start(skb, attr);
7662 ((void **)skb->cb)[0] = rdev;
7663 ((void **)skb->cb)[1] = hdr;
7664 ((void **)skb->cb)[2] = data;
7673 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7674 struct wireless_dev *wdev,
7675 enum nl80211_commands cmd,
7676 enum nl80211_attrs attr,
7677 int vendor_event_idx,
7678 int approxlen, gfp_t gfp)
7680 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7681 const struct nl80211_vendor_cmd_info *info;
7684 case NL80211_CMD_TESTMODE:
7685 if (WARN_ON(vendor_event_idx != -1))
7689 case NL80211_CMD_VENDOR:
7690 if (WARN_ON(vendor_event_idx < 0 ||
7691 vendor_event_idx >= wiphy->n_vendor_events))
7693 info = &wiphy->vendor_events[vendor_event_idx];
7700 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
7701 cmd, attr, info, gfp);
7703 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7705 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7707 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7708 void *hdr = ((void **)skb->cb)[1];
7709 struct nlattr *data = ((void **)skb->cb)[2];
7710 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7712 /* clear CB data for netlink core to own from now on */
7713 memset(skb->cb, 0, sizeof(skb->cb));
7715 nla_nest_end(skb, data);
7716 genlmsg_end(skb, hdr);
7718 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7719 mcgrp = NL80211_MCGRP_VENDOR;
7721 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7724 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7726 #ifdef CONFIG_NL80211_TESTMODE
7727 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7729 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7730 struct wireless_dev *wdev =
7731 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7734 if (!rdev->ops->testmode_cmd)
7738 err = PTR_ERR(wdev);
7742 } else if (wdev->wiphy != &rdev->wiphy) {
7746 if (!info->attrs[NL80211_ATTR_TESTDATA])
7749 rdev->cur_cmd_info = info;
7750 err = rdev_testmode_cmd(rdev, wdev,
7751 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7752 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7753 rdev->cur_cmd_info = NULL;
7758 static int nl80211_testmode_dump(struct sk_buff *skb,
7759 struct netlink_callback *cb)
7761 struct cfg80211_registered_device *rdev;
7771 * 0 is a valid index, but not valid for args[0],
7772 * so we need to offset by 1.
7774 phy_idx = cb->args[0] - 1;
7776 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7777 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7782 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7783 nl80211_fam.attrbuf);
7785 err = PTR_ERR(rdev);
7788 phy_idx = rdev->wiphy_idx;
7791 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7793 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7797 data = nla_data((void *)cb->args[1]);
7798 data_len = nla_len((void *)cb->args[1]);
7801 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7807 if (!rdev->ops->testmode_dump) {
7813 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7814 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7815 NL80211_CMD_TESTMODE);
7816 struct nlattr *tmdata;
7821 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7822 genlmsg_cancel(skb, hdr);
7826 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7828 genlmsg_cancel(skb, hdr);
7831 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7832 nla_nest_end(skb, tmdata);
7834 if (err == -ENOBUFS || err == -ENOENT) {
7835 genlmsg_cancel(skb, hdr);
7838 genlmsg_cancel(skb, hdr);
7842 genlmsg_end(skb, hdr);
7847 cb->args[0] = phy_idx + 1;
7854 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7856 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7857 struct net_device *dev = info->user_ptr[1];
7858 struct cfg80211_connect_params connect;
7859 struct wiphy *wiphy;
7860 struct cfg80211_cached_keys *connkeys = NULL;
7863 memset(&connect, 0, sizeof(connect));
7865 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7868 if (!info->attrs[NL80211_ATTR_SSID] ||
7869 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7872 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7874 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7875 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7876 NL80211_CMD_CONNECT))
7879 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7881 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7883 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7884 NL80211_MAX_NR_CIPHER_SUITES);
7888 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7889 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7892 wiphy = &rdev->wiphy;
7894 connect.bg_scan_period = -1;
7895 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7896 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7897 connect.bg_scan_period =
7898 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7901 if (info->attrs[NL80211_ATTR_MAC])
7902 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7903 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7904 connect.bssid_hint =
7905 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7906 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7907 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7909 if (info->attrs[NL80211_ATTR_IE]) {
7910 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7911 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7914 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7915 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7916 if (connect.mfp != NL80211_MFP_REQUIRED &&
7917 connect.mfp != NL80211_MFP_NO)
7920 connect.mfp = NL80211_MFP_NO;
7923 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7924 connect.channel = nl80211_get_valid_chan(
7925 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7926 if (!connect.channel)
7928 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7929 connect.channel_hint = nl80211_get_valid_chan(
7930 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7931 if (!connect.channel_hint)
7935 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7936 connkeys = nl80211_parse_connkeys(rdev,
7937 info->attrs[NL80211_ATTR_KEYS], NULL);
7938 if (IS_ERR(connkeys))
7939 return PTR_ERR(connkeys);
7942 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7943 connect.flags |= ASSOC_REQ_DISABLE_HT;
7945 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7946 memcpy(&connect.ht_capa_mask,
7947 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7948 sizeof(connect.ht_capa_mask));
7950 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7951 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7955 memcpy(&connect.ht_capa,
7956 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7957 sizeof(connect.ht_capa));
7960 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7961 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7963 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7964 memcpy(&connect.vht_capa_mask,
7965 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7966 sizeof(connect.vht_capa_mask));
7968 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7969 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7973 memcpy(&connect.vht_capa,
7974 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7975 sizeof(connect.vht_capa));
7978 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7979 if (!(rdev->wiphy.features &
7980 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7981 !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) {
7985 connect.flags |= ASSOC_REQ_USE_RRM;
7988 connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
7989 if (connect.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) {
7994 wdev_lock(dev->ieee80211_ptr);
7995 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7996 wdev_unlock(dev->ieee80211_ptr);
8002 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
8004 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8005 struct net_device *dev = info->user_ptr[1];
8009 if (!info->attrs[NL80211_ATTR_REASON_CODE])
8010 reason = WLAN_REASON_DEAUTH_LEAVING;
8012 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8017 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8018 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8021 wdev_lock(dev->ieee80211_ptr);
8022 ret = cfg80211_disconnect(rdev, dev, reason, true);
8023 wdev_unlock(dev->ieee80211_ptr);
8027 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8029 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8033 if (info->attrs[NL80211_ATTR_PID]) {
8034 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8036 net = get_net_ns_by_pid(pid);
8037 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8038 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
8040 net = get_net_ns_by_fd(fd);
8046 return PTR_ERR(net);
8050 /* check if anything to do */
8051 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8052 err = cfg80211_switch_netns(rdev, net);
8058 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8060 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8061 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8062 struct cfg80211_pmksa *pmksa) = NULL;
8063 struct net_device *dev = info->user_ptr[1];
8064 struct cfg80211_pmksa pmksa;
8066 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8068 if (!info->attrs[NL80211_ATTR_MAC])
8071 if (!info->attrs[NL80211_ATTR_PMKID])
8074 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8075 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8077 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8078 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8081 switch (info->genlhdr->cmd) {
8082 case NL80211_CMD_SET_PMKSA:
8083 rdev_ops = rdev->ops->set_pmksa;
8085 case NL80211_CMD_DEL_PMKSA:
8086 rdev_ops = rdev->ops->del_pmksa;
8096 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8099 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8101 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8102 struct net_device *dev = info->user_ptr[1];
8104 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8105 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8108 if (!rdev->ops->flush_pmksa)
8111 return rdev_flush_pmksa(rdev, dev);
8114 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8116 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8117 struct net_device *dev = info->user_ptr[1];
8118 u8 action_code, dialog_token;
8119 u32 peer_capability = 0;
8124 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8125 !rdev->ops->tdls_mgmt)
8128 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8129 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8130 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8131 !info->attrs[NL80211_ATTR_IE] ||
8132 !info->attrs[NL80211_ATTR_MAC])
8135 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8136 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8137 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8138 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8139 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8140 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8142 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8144 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8145 dialog_token, status_code, peer_capability,
8147 nla_data(info->attrs[NL80211_ATTR_IE]),
8148 nla_len(info->attrs[NL80211_ATTR_IE]));
8151 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8153 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8154 struct net_device *dev = info->user_ptr[1];
8155 enum nl80211_tdls_operation operation;
8158 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8159 !rdev->ops->tdls_oper)
8162 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8163 !info->attrs[NL80211_ATTR_MAC])
8166 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8167 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8169 return rdev_tdls_oper(rdev, dev, peer, operation);
8172 static int nl80211_remain_on_channel(struct sk_buff *skb,
8173 struct genl_info *info)
8175 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8176 struct wireless_dev *wdev = info->user_ptr[1];
8177 struct cfg80211_chan_def chandef;
8178 struct sk_buff *msg;
8184 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8185 !info->attrs[NL80211_ATTR_DURATION])
8188 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8190 if (!rdev->ops->remain_on_channel ||
8191 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8195 * We should be on that channel for at least a minimum amount of
8196 * time (10ms) but no longer than the driver supports.
8198 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8199 duration > rdev->wiphy.max_remain_on_channel_duration)
8202 err = nl80211_parse_chandef(rdev, info, &chandef);
8206 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8210 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8211 NL80211_CMD_REMAIN_ON_CHANNEL);
8217 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8223 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8224 goto nla_put_failure;
8226 genlmsg_end(msg, hdr);
8228 return genlmsg_reply(msg, info);
8237 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8238 struct genl_info *info)
8240 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8241 struct wireless_dev *wdev = info->user_ptr[1];
8244 if (!info->attrs[NL80211_ATTR_COOKIE])
8247 if (!rdev->ops->cancel_remain_on_channel)
8250 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8252 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8255 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8256 u8 *rates, u8 rates_len)
8261 for (i = 0; i < rates_len; i++) {
8262 int rate = (rates[i] & 0x7f) * 5;
8264 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8265 struct ieee80211_rate *srate =
8266 &sband->bitrates[ridx];
8267 if (rate == srate->bitrate) {
8272 if (ridx == sband->n_bitrates)
8273 return 0; /* rate not found */
8279 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8280 u8 *rates, u8 rates_len,
8281 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8285 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8287 for (i = 0; i < rates_len; i++) {
8290 ridx = rates[i] / 8;
8291 rbit = BIT(rates[i] % 8);
8293 /* check validity */
8294 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8297 /* check availability */
8298 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8307 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8311 switch (vht_mcs_map) {
8312 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8314 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8317 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8320 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8330 static void vht_build_mcs_mask(u16 vht_mcs_map,
8331 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8335 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8336 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8341 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8342 struct nl80211_txrate_vht *txrate,
8343 u16 mcs[NL80211_VHT_NSS_MAX])
8345 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8346 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8349 if (!sband->vht_cap.vht_supported)
8352 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8354 /* Build vht_mcs_mask from VHT capabilities */
8355 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8357 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8358 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8359 mcs[i] = txrate->mcs[i];
8367 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8368 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8369 .len = NL80211_MAX_SUPP_RATES },
8370 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8371 .len = NL80211_MAX_SUPP_HT_RATES },
8372 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8373 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8376 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8377 struct genl_info *info)
8379 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8380 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8381 struct cfg80211_bitrate_mask mask;
8383 struct net_device *dev = info->user_ptr[1];
8384 struct nlattr *tx_rates;
8385 struct ieee80211_supported_band *sband;
8388 if (!rdev->ops->set_bitrate_mask)
8391 memset(&mask, 0, sizeof(mask));
8392 /* Default to all rates enabled */
8393 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8394 sband = rdev->wiphy.bands[i];
8399 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8400 memcpy(mask.control[i].ht_mcs,
8401 sband->ht_cap.mcs.rx_mask,
8402 sizeof(mask.control[i].ht_mcs));
8404 if (!sband->vht_cap.vht_supported)
8407 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8408 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8411 /* if no rates are given set it back to the defaults */
8412 if (!info->attrs[NL80211_ATTR_TX_RATES])
8416 * The nested attribute uses enum nl80211_band as the index. This maps
8417 * directly to the enum ieee80211_band values used in cfg80211.
8419 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8420 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8421 enum ieee80211_band band = nla_type(tx_rates);
8424 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8426 sband = rdev->wiphy.bands[band];
8429 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8430 nla_len(tx_rates), nl80211_txattr_policy);
8433 if (tb[NL80211_TXRATE_LEGACY]) {
8434 mask.control[band].legacy = rateset_to_mask(
8436 nla_data(tb[NL80211_TXRATE_LEGACY]),
8437 nla_len(tb[NL80211_TXRATE_LEGACY]));
8438 if ((mask.control[band].legacy == 0) &&
8439 nla_len(tb[NL80211_TXRATE_LEGACY]))
8442 if (tb[NL80211_TXRATE_HT]) {
8443 if (!ht_rateset_to_mask(
8445 nla_data(tb[NL80211_TXRATE_HT]),
8446 nla_len(tb[NL80211_TXRATE_HT]),
8447 mask.control[band].ht_mcs))
8450 if (tb[NL80211_TXRATE_VHT]) {
8451 if (!vht_set_mcs_mask(
8453 nla_data(tb[NL80211_TXRATE_VHT]),
8454 mask.control[band].vht_mcs))
8457 if (tb[NL80211_TXRATE_GI]) {
8458 mask.control[band].gi =
8459 nla_get_u8(tb[NL80211_TXRATE_GI]);
8460 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8464 if (mask.control[band].legacy == 0) {
8465 /* don't allow empty legacy rates if HT or VHT
8466 * are not even supported.
8468 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8469 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8472 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8473 if (mask.control[band].ht_mcs[i])
8476 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8477 if (mask.control[band].vht_mcs[i])
8480 /* legacy and mcs rates may not be both empty */
8486 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8489 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8492 struct wireless_dev *wdev = info->user_ptr[1];
8493 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8495 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8498 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8499 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8501 switch (wdev->iftype) {
8502 case NL80211_IFTYPE_STATION:
8503 case NL80211_IFTYPE_ADHOC:
8504 case NL80211_IFTYPE_P2P_CLIENT:
8505 case NL80211_IFTYPE_AP:
8506 case NL80211_IFTYPE_AP_VLAN:
8507 case NL80211_IFTYPE_MESH_POINT:
8508 case NL80211_IFTYPE_P2P_GO:
8509 case NL80211_IFTYPE_P2P_DEVICE:
8515 /* not much point in registering if we can't reply */
8516 if (!rdev->ops->mgmt_tx)
8519 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8520 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8521 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8524 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8526 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8527 struct wireless_dev *wdev = info->user_ptr[1];
8528 struct cfg80211_chan_def chandef;
8532 struct sk_buff *msg = NULL;
8533 struct cfg80211_mgmt_tx_params params = {
8534 .dont_wait_for_ack =
8535 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8538 if (!info->attrs[NL80211_ATTR_FRAME])
8541 if (!rdev->ops->mgmt_tx)
8544 switch (wdev->iftype) {
8545 case NL80211_IFTYPE_P2P_DEVICE:
8546 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8548 case NL80211_IFTYPE_STATION:
8549 case NL80211_IFTYPE_ADHOC:
8550 case NL80211_IFTYPE_P2P_CLIENT:
8551 case NL80211_IFTYPE_AP:
8552 case NL80211_IFTYPE_AP_VLAN:
8553 case NL80211_IFTYPE_MESH_POINT:
8554 case NL80211_IFTYPE_P2P_GO:
8560 if (info->attrs[NL80211_ATTR_DURATION]) {
8561 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8563 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8566 * We should wait on the channel for at least a minimum amount
8567 * of time (10ms) but no longer than the driver supports.
8569 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8570 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8575 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8577 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8580 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8582 /* get the channel if any has been specified, otherwise pass NULL to
8583 * the driver. The latter will use the current one
8585 chandef.chan = NULL;
8586 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8587 err = nl80211_parse_chandef(rdev, info, &chandef);
8592 if (!chandef.chan && params.offchan)
8595 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8596 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8598 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8599 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8602 if (len % sizeof(u16))
8605 params.n_csa_offsets = len / sizeof(u16);
8606 params.csa_offsets =
8607 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8609 /* check that all the offsets fit the frame */
8610 for (i = 0; i < params.n_csa_offsets; i++) {
8611 if (params.csa_offsets[i] >= params.len)
8616 if (!params.dont_wait_for_ack) {
8617 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8621 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8629 params.chan = chandef.chan;
8630 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8635 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8636 goto nla_put_failure;
8638 genlmsg_end(msg, hdr);
8639 return genlmsg_reply(msg, info);
8651 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8653 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8654 struct wireless_dev *wdev = info->user_ptr[1];
8657 if (!info->attrs[NL80211_ATTR_COOKIE])
8660 if (!rdev->ops->mgmt_tx_cancel_wait)
8663 switch (wdev->iftype) {
8664 case NL80211_IFTYPE_STATION:
8665 case NL80211_IFTYPE_ADHOC:
8666 case NL80211_IFTYPE_P2P_CLIENT:
8667 case NL80211_IFTYPE_AP:
8668 case NL80211_IFTYPE_AP_VLAN:
8669 case NL80211_IFTYPE_P2P_GO:
8670 case NL80211_IFTYPE_P2P_DEVICE:
8676 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8678 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8681 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8683 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8684 struct wireless_dev *wdev;
8685 struct net_device *dev = info->user_ptr[1];
8690 if (!info->attrs[NL80211_ATTR_PS_STATE])
8693 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8695 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8698 wdev = dev->ieee80211_ptr;
8700 if (!rdev->ops->set_power_mgmt)
8703 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8705 if (state == wdev->ps)
8708 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8714 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8716 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8717 enum nl80211_ps_state ps_state;
8718 struct wireless_dev *wdev;
8719 struct net_device *dev = info->user_ptr[1];
8720 struct sk_buff *msg;
8724 wdev = dev->ieee80211_ptr;
8726 if (!rdev->ops->set_power_mgmt)
8729 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8733 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8734 NL80211_CMD_GET_POWER_SAVE);
8741 ps_state = NL80211_PS_ENABLED;
8743 ps_state = NL80211_PS_DISABLED;
8745 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8746 goto nla_put_failure;
8748 genlmsg_end(msg, hdr);
8749 return genlmsg_reply(msg, info);
8758 static const struct nla_policy
8759 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8760 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8761 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8762 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8763 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8764 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8765 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8768 static int nl80211_set_cqm_txe(struct genl_info *info,
8769 u32 rate, u32 pkts, u32 intvl)
8771 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8772 struct net_device *dev = info->user_ptr[1];
8773 struct wireless_dev *wdev = dev->ieee80211_ptr;
8775 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8778 if (!rdev->ops->set_cqm_txe_config)
8781 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8782 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8785 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8788 static int nl80211_set_cqm_rssi(struct genl_info *info,
8789 s32 threshold, u32 hysteresis)
8791 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8792 struct net_device *dev = info->user_ptr[1];
8793 struct wireless_dev *wdev = dev->ieee80211_ptr;
8798 /* disabling - hysteresis should also be zero then */
8802 if (!rdev->ops->set_cqm_rssi_config)
8805 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8806 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8809 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8812 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8814 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8818 cqm = info->attrs[NL80211_ATTR_CQM];
8822 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8823 nl80211_attr_cqm_policy);
8827 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8828 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8829 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8830 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8832 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8835 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8836 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8837 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8838 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8839 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8840 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8842 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8848 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8850 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8851 struct net_device *dev = info->user_ptr[1];
8852 struct ocb_setup setup = {};
8855 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8859 return cfg80211_join_ocb(rdev, dev, &setup);
8862 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8864 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8865 struct net_device *dev = info->user_ptr[1];
8867 return cfg80211_leave_ocb(rdev, dev);
8870 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8872 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8873 struct net_device *dev = info->user_ptr[1];
8874 struct mesh_config cfg;
8875 struct mesh_setup setup;
8878 /* start with default */
8879 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8880 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8882 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8883 /* and parse parameters if given */
8884 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8889 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8890 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8893 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8894 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8896 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8897 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8898 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8901 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8902 setup.beacon_interval =
8903 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8904 if (setup.beacon_interval < 10 ||
8905 setup.beacon_interval > 10000)
8909 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8911 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8912 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8916 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8917 /* parse additional setup parameters if given */
8918 err = nl80211_parse_mesh_setup(info, &setup);
8924 cfg.auto_open_plinks = false;
8926 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8927 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8931 /* cfg80211_join_mesh() will sort it out */
8932 setup.chandef.chan = NULL;
8935 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8936 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8938 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8939 struct ieee80211_supported_band *sband;
8941 if (!setup.chandef.chan)
8944 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8946 err = ieee80211_get_ratemask(sband, rates, n_rates,
8947 &setup.basic_rates);
8952 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8955 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8957 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8958 struct net_device *dev = info->user_ptr[1];
8960 return cfg80211_leave_mesh(rdev, dev);
8964 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8965 struct cfg80211_registered_device *rdev)
8967 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8968 struct nlattr *nl_pats, *nl_pat;
8971 if (!wowlan->n_patterns)
8974 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8978 for (i = 0; i < wowlan->n_patterns; i++) {
8979 nl_pat = nla_nest_start(msg, i + 1);
8982 pat_len = wowlan->patterns[i].pattern_len;
8983 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8984 wowlan->patterns[i].mask) ||
8985 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8986 wowlan->patterns[i].pattern) ||
8987 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8988 wowlan->patterns[i].pkt_offset))
8990 nla_nest_end(msg, nl_pat);
8992 nla_nest_end(msg, nl_pats);
8997 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8998 struct cfg80211_wowlan_tcp *tcp)
9000 struct nlattr *nl_tcp;
9005 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
9009 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
9010 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
9011 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9012 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9013 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9014 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9015 tcp->payload_len, tcp->payload) ||
9016 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9017 tcp->data_interval) ||
9018 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9019 tcp->wake_len, tcp->wake_data) ||
9020 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9021 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9024 if (tcp->payload_seq.len &&
9025 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9026 sizeof(tcp->payload_seq), &tcp->payload_seq))
9029 if (tcp->payload_tok.len &&
9030 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9031 sizeof(tcp->payload_tok) + tcp->tokens_size,
9035 nla_nest_end(msg, nl_tcp);
9040 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9041 struct cfg80211_sched_scan_request *req)
9043 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9049 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9053 if (req->n_scan_plans == 1 &&
9054 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9055 req->scan_plans[0].interval * 1000))
9058 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9061 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9065 for (i = 0; i < req->n_channels; i++)
9066 nla_put_u32(msg, i, req->channels[i]->center_freq);
9068 nla_nest_end(msg, freqs);
9070 if (req->n_match_sets) {
9071 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9072 for (i = 0; i < req->n_match_sets; i++) {
9073 match = nla_nest_start(msg, i);
9074 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9075 req->match_sets[i].ssid.ssid_len,
9076 req->match_sets[i].ssid.ssid);
9077 nla_nest_end(msg, match);
9079 nla_nest_end(msg, matches);
9082 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9086 for (i = 0; i < req->n_scan_plans; i++) {
9087 scan_plan = nla_nest_start(msg, i + 1);
9089 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9090 req->scan_plans[i].interval) ||
9091 (req->scan_plans[i].iterations &&
9092 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9093 req->scan_plans[i].iterations)))
9095 nla_nest_end(msg, scan_plan);
9097 nla_nest_end(msg, scan_plans);
9099 nla_nest_end(msg, nd);
9104 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9107 struct sk_buff *msg;
9109 u32 size = NLMSG_DEFAULT_SIZE;
9111 if (!rdev->wiphy.wowlan)
9114 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9115 /* adjust size to have room for all the data */
9116 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9117 rdev->wiphy.wowlan_config->tcp->payload_len +
9118 rdev->wiphy.wowlan_config->tcp->wake_len +
9119 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9122 msg = nlmsg_new(size, GFP_KERNEL);
9126 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9127 NL80211_CMD_GET_WOWLAN);
9129 goto nla_put_failure;
9131 if (rdev->wiphy.wowlan_config) {
9132 struct nlattr *nl_wowlan;
9134 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9136 goto nla_put_failure;
9138 if ((rdev->wiphy.wowlan_config->any &&
9139 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9140 (rdev->wiphy.wowlan_config->disconnect &&
9141 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9142 (rdev->wiphy.wowlan_config->magic_pkt &&
9143 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9144 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9145 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9146 (rdev->wiphy.wowlan_config->eap_identity_req &&
9147 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9148 (rdev->wiphy.wowlan_config->four_way_handshake &&
9149 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9150 (rdev->wiphy.wowlan_config->rfkill_release &&
9151 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9152 goto nla_put_failure;
9154 if (nl80211_send_wowlan_patterns(msg, rdev))
9155 goto nla_put_failure;
9157 if (nl80211_send_wowlan_tcp(msg,
9158 rdev->wiphy.wowlan_config->tcp))
9159 goto nla_put_failure;
9161 if (nl80211_send_wowlan_nd(
9163 rdev->wiphy.wowlan_config->nd_config))
9164 goto nla_put_failure;
9166 nla_nest_end(msg, nl_wowlan);
9169 genlmsg_end(msg, hdr);
9170 return genlmsg_reply(msg, info);
9177 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9178 struct nlattr *attr,
9179 struct cfg80211_wowlan *trig)
9181 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9182 struct cfg80211_wowlan_tcp *cfg;
9183 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9184 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9186 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9189 if (!rdev->wiphy.wowlan->tcp)
9192 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9193 nla_data(attr), nla_len(attr),
9194 nl80211_wowlan_tcp_policy);
9198 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9199 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9200 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9201 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9202 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9203 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9204 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9205 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9208 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9209 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9212 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9213 rdev->wiphy.wowlan->tcp->data_interval_max ||
9214 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9217 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9218 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9221 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9222 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9225 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9226 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9228 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9229 tokens_size = tokln - sizeof(*tok);
9231 if (!tok->len || tokens_size % tok->len)
9233 if (!rdev->wiphy.wowlan->tcp->tok)
9235 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9237 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9239 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9241 if (tok->offset + tok->len > data_size)
9245 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9246 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9247 if (!rdev->wiphy.wowlan->tcp->seq)
9249 if (seq->len == 0 || seq->len > 4)
9251 if (seq->len + seq->offset > data_size)
9255 size = sizeof(*cfg);
9257 size += wake_size + wake_mask_size;
9258 size += tokens_size;
9260 cfg = kzalloc(size, GFP_KERNEL);
9263 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9264 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9265 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9267 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9268 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9272 /* allocate a socket and port for it and use it */
9273 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9274 IPPROTO_TCP, &cfg->sock, 1);
9279 if (inet_csk_get_port(cfg->sock->sk, port)) {
9280 sock_release(cfg->sock);
9284 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9290 cfg->src_port = port;
9293 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9294 cfg->payload_len = data_size;
9295 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9296 memcpy((void *)cfg->payload,
9297 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9300 cfg->payload_seq = *seq;
9301 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9302 cfg->wake_len = wake_size;
9303 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9304 memcpy((void *)cfg->wake_data,
9305 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9307 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9308 data_size + wake_size;
9309 memcpy((void *)cfg->wake_mask,
9310 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9313 cfg->tokens_size = tokens_size;
9314 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9322 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9323 const struct wiphy_wowlan_support *wowlan,
9324 struct nlattr *attr,
9325 struct cfg80211_wowlan *trig)
9330 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9334 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9339 err = nla_parse(tb, NL80211_ATTR_MAX,
9340 nla_data(attr), nla_len(attr),
9345 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9346 err = PTR_ERR_OR_ZERO(trig->nd_config);
9348 trig->nd_config = NULL;
9355 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9358 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9359 struct cfg80211_wowlan new_triggers = {};
9360 struct cfg80211_wowlan *ntrig;
9361 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9363 bool prev_enabled = rdev->wiphy.wowlan_config;
9364 bool regular = false;
9369 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9370 cfg80211_rdev_free_wowlan(rdev);
9371 rdev->wiphy.wowlan_config = NULL;
9375 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9376 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9377 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9378 nl80211_wowlan_policy);
9382 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9383 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9385 new_triggers.any = true;
9388 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9389 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9391 new_triggers.disconnect = true;
9395 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9396 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9398 new_triggers.magic_pkt = true;
9402 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9405 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9406 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9408 new_triggers.gtk_rekey_failure = true;
9412 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9413 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9415 new_triggers.eap_identity_req = true;
9419 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9420 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9422 new_triggers.four_way_handshake = true;
9426 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9427 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9429 new_triggers.rfkill_release = true;
9433 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9436 int rem, pat_len, mask_len, pkt_offset;
9437 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9441 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9444 if (n_patterns > wowlan->n_patterns)
9447 new_triggers.patterns = kcalloc(n_patterns,
9448 sizeof(new_triggers.patterns[0]),
9450 if (!new_triggers.patterns)
9453 new_triggers.n_patterns = n_patterns;
9456 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9460 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9461 nla_len(pat), NULL);
9463 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9464 !pat_tb[NL80211_PKTPAT_PATTERN])
9466 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9467 mask_len = DIV_ROUND_UP(pat_len, 8);
9468 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9470 if (pat_len > wowlan->pattern_max_len ||
9471 pat_len < wowlan->pattern_min_len)
9474 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9477 pkt_offset = nla_get_u32(
9478 pat_tb[NL80211_PKTPAT_OFFSET]);
9479 if (pkt_offset > wowlan->max_pkt_offset)
9481 new_triggers.patterns[i].pkt_offset = pkt_offset;
9483 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9488 new_triggers.patterns[i].mask = mask_pat;
9489 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9491 mask_pat += mask_len;
9492 new_triggers.patterns[i].pattern = mask_pat;
9493 new_triggers.patterns[i].pattern_len = pat_len;
9495 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9501 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9503 err = nl80211_parse_wowlan_tcp(
9504 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9510 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9512 err = nl80211_parse_wowlan_nd(
9513 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9519 /* The 'any' trigger means the device continues operating more or less
9520 * as in its normal operation mode and wakes up the host on most of the
9521 * normal interrupts (like packet RX, ...)
9522 * It therefore makes little sense to combine with the more constrained
9523 * wakeup trigger modes.
9525 if (new_triggers.any && regular) {
9530 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9535 cfg80211_rdev_free_wowlan(rdev);
9536 rdev->wiphy.wowlan_config = ntrig;
9539 if (rdev->ops->set_wakeup &&
9540 prev_enabled != !!rdev->wiphy.wowlan_config)
9541 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9545 for (i = 0; i < new_triggers.n_patterns; i++)
9546 kfree(new_triggers.patterns[i].mask);
9547 kfree(new_triggers.patterns);
9548 if (new_triggers.tcp && new_triggers.tcp->sock)
9549 sock_release(new_triggers.tcp->sock);
9550 kfree(new_triggers.tcp);
9551 kfree(new_triggers.nd_config);
9556 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9557 struct cfg80211_registered_device *rdev)
9559 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9561 struct cfg80211_coalesce_rules *rule;
9563 if (!rdev->coalesce->n_rules)
9566 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9570 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9571 nl_rule = nla_nest_start(msg, i + 1);
9575 rule = &rdev->coalesce->rules[i];
9576 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9580 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9584 nl_pats = nla_nest_start(msg,
9585 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9589 for (j = 0; j < rule->n_patterns; j++) {
9590 nl_pat = nla_nest_start(msg, j + 1);
9593 pat_len = rule->patterns[j].pattern_len;
9594 if (nla_put(msg, NL80211_PKTPAT_MASK,
9595 DIV_ROUND_UP(pat_len, 8),
9596 rule->patterns[j].mask) ||
9597 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9598 rule->patterns[j].pattern) ||
9599 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9600 rule->patterns[j].pkt_offset))
9602 nla_nest_end(msg, nl_pat);
9604 nla_nest_end(msg, nl_pats);
9605 nla_nest_end(msg, nl_rule);
9607 nla_nest_end(msg, nl_rules);
9612 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9614 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9615 struct sk_buff *msg;
9618 if (!rdev->wiphy.coalesce)
9621 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9625 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9626 NL80211_CMD_GET_COALESCE);
9628 goto nla_put_failure;
9630 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9631 goto nla_put_failure;
9633 genlmsg_end(msg, hdr);
9634 return genlmsg_reply(msg, info);
9641 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9643 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9645 struct cfg80211_coalesce_rules *rule;
9650 for (i = 0; i < coalesce->n_rules; i++) {
9651 rule = &coalesce->rules[i];
9652 for (j = 0; j < rule->n_patterns; j++)
9653 kfree(rule->patterns[j].mask);
9654 kfree(rule->patterns);
9656 kfree(coalesce->rules);
9658 rdev->coalesce = NULL;
9661 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9662 struct nlattr *rule,
9663 struct cfg80211_coalesce_rules *new_rule)
9666 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9667 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9668 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9669 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9671 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9672 nla_len(rule), nl80211_coalesce_policy);
9676 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9678 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9679 if (new_rule->delay > coalesce->max_delay)
9682 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9683 new_rule->condition =
9684 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9685 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9686 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9689 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9692 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9695 if (n_patterns > coalesce->n_patterns)
9698 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9700 if (!new_rule->patterns)
9703 new_rule->n_patterns = n_patterns;
9706 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9710 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9711 nla_len(pat), NULL);
9712 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9713 !pat_tb[NL80211_PKTPAT_PATTERN])
9715 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9716 mask_len = DIV_ROUND_UP(pat_len, 8);
9717 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9719 if (pat_len > coalesce->pattern_max_len ||
9720 pat_len < coalesce->pattern_min_len)
9723 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9726 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9727 if (pkt_offset > coalesce->max_pkt_offset)
9729 new_rule->patterns[i].pkt_offset = pkt_offset;
9731 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9735 new_rule->patterns[i].mask = mask_pat;
9736 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9739 mask_pat += mask_len;
9740 new_rule->patterns[i].pattern = mask_pat;
9741 new_rule->patterns[i].pattern_len = pat_len;
9742 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9750 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9752 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9753 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9754 struct cfg80211_coalesce new_coalesce = {};
9755 struct cfg80211_coalesce *n_coalesce;
9756 int err, rem_rule, n_rules = 0, i, j;
9757 struct nlattr *rule;
9758 struct cfg80211_coalesce_rules *tmp_rule;
9760 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9763 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9764 cfg80211_rdev_free_coalesce(rdev);
9765 rdev_set_coalesce(rdev, NULL);
9769 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9772 if (n_rules > coalesce->n_rules)
9775 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9777 if (!new_coalesce.rules)
9780 new_coalesce.n_rules = n_rules;
9783 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9785 err = nl80211_parse_coalesce_rule(rdev, rule,
9786 &new_coalesce.rules[i]);
9793 err = rdev_set_coalesce(rdev, &new_coalesce);
9797 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9802 cfg80211_rdev_free_coalesce(rdev);
9803 rdev->coalesce = n_coalesce;
9807 for (i = 0; i < new_coalesce.n_rules; i++) {
9808 tmp_rule = &new_coalesce.rules[i];
9809 for (j = 0; j < tmp_rule->n_patterns; j++)
9810 kfree(tmp_rule->patterns[j].mask);
9811 kfree(tmp_rule->patterns);
9813 kfree(new_coalesce.rules);
9818 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9821 struct net_device *dev = info->user_ptr[1];
9822 struct wireless_dev *wdev = dev->ieee80211_ptr;
9823 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9824 struct cfg80211_gtk_rekey_data rekey_data;
9827 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9830 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9831 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9832 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9833 nl80211_rekey_policy);
9837 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9839 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9841 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9844 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9845 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9846 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9849 if (!wdev->current_bss) {
9854 if (!rdev->ops->set_rekey_data) {
9859 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9865 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9866 struct genl_info *info)
9868 struct net_device *dev = info->user_ptr[1];
9869 struct wireless_dev *wdev = dev->ieee80211_ptr;
9871 if (wdev->iftype != NL80211_IFTYPE_AP &&
9872 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9875 if (wdev->ap_unexpected_nlportid)
9878 wdev->ap_unexpected_nlportid = info->snd_portid;
9882 static int nl80211_probe_client(struct sk_buff *skb,
9883 struct genl_info *info)
9885 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9886 struct net_device *dev = info->user_ptr[1];
9887 struct wireless_dev *wdev = dev->ieee80211_ptr;
9888 struct sk_buff *msg;
9894 if (wdev->iftype != NL80211_IFTYPE_AP &&
9895 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9898 if (!info->attrs[NL80211_ATTR_MAC])
9901 if (!rdev->ops->probe_client)
9904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9909 NL80211_CMD_PROBE_CLIENT);
9915 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9917 err = rdev_probe_client(rdev, dev, addr, &cookie);
9921 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9922 goto nla_put_failure;
9924 genlmsg_end(msg, hdr);
9926 return genlmsg_reply(msg, info);
9935 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9937 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9938 struct cfg80211_beacon_registration *reg, *nreg;
9941 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9944 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9948 /* First, check if already registered. */
9949 spin_lock_bh(&rdev->beacon_registrations_lock);
9950 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9951 if (reg->nlportid == info->snd_portid) {
9956 /* Add it to the list */
9957 nreg->nlportid = info->snd_portid;
9958 list_add(&nreg->list, &rdev->beacon_registrations);
9960 spin_unlock_bh(&rdev->beacon_registrations_lock);
9964 spin_unlock_bh(&rdev->beacon_registrations_lock);
9969 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9971 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9972 struct wireless_dev *wdev = info->user_ptr[1];
9975 if (!rdev->ops->start_p2p_device)
9978 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9981 if (wdev->p2p_started)
9984 if (rfkill_blocked(rdev->rfkill))
9987 err = rdev_start_p2p_device(rdev, wdev);
9991 wdev->p2p_started = true;
9997 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9999 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10000 struct wireless_dev *wdev = info->user_ptr[1];
10002 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
10003 return -EOPNOTSUPP;
10005 if (!rdev->ops->stop_p2p_device)
10006 return -EOPNOTSUPP;
10008 cfg80211_stop_p2p_device(rdev, wdev);
10013 static int nl80211_get_protocol_features(struct sk_buff *skb,
10014 struct genl_info *info)
10017 struct sk_buff *msg;
10019 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10023 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10024 NL80211_CMD_GET_PROTOCOL_FEATURES);
10026 goto nla_put_failure;
10028 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10029 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10030 goto nla_put_failure;
10032 genlmsg_end(msg, hdr);
10033 return genlmsg_reply(msg, info);
10040 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10042 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10043 struct cfg80211_update_ft_ies_params ft_params;
10044 struct net_device *dev = info->user_ptr[1];
10046 if (!rdev->ops->update_ft_ies)
10047 return -EOPNOTSUPP;
10049 if (!info->attrs[NL80211_ATTR_MDID] ||
10050 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10053 memset(&ft_params, 0, sizeof(ft_params));
10054 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10055 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10056 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10058 return rdev_update_ft_ies(rdev, dev, &ft_params);
10061 static int nl80211_crit_protocol_start(struct sk_buff *skb,
10062 struct genl_info *info)
10064 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10065 struct wireless_dev *wdev = info->user_ptr[1];
10066 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10070 if (!rdev->ops->crit_proto_start)
10071 return -EOPNOTSUPP;
10073 if (WARN_ON(!rdev->ops->crit_proto_stop))
10076 if (rdev->crit_proto_nlportid)
10079 /* determine protocol if provided */
10080 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10081 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10083 if (proto >= NUM_NL80211_CRIT_PROTO)
10086 /* timeout must be provided */
10087 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10091 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10093 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10096 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10098 rdev->crit_proto_nlportid = info->snd_portid;
10103 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10104 struct genl_info *info)
10106 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10107 struct wireless_dev *wdev = info->user_ptr[1];
10109 if (!rdev->ops->crit_proto_stop)
10110 return -EOPNOTSUPP;
10112 if (rdev->crit_proto_nlportid) {
10113 rdev->crit_proto_nlportid = 0;
10114 rdev_crit_proto_stop(rdev, wdev);
10119 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10121 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10122 struct wireless_dev *wdev =
10123 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10127 if (!rdev->wiphy.vendor_commands)
10128 return -EOPNOTSUPP;
10130 if (IS_ERR(wdev)) {
10131 err = PTR_ERR(wdev);
10132 if (err != -EINVAL)
10135 } else if (wdev->wiphy != &rdev->wiphy) {
10139 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10140 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10143 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10144 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10145 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10146 const struct wiphy_vendor_command *vcmd;
10150 vcmd = &rdev->wiphy.vendor_commands[i];
10152 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10155 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10156 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10159 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10163 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10164 if (wdev->netdev &&
10165 !netif_running(wdev->netdev))
10167 if (!wdev->netdev && !wdev->p2p_started)
10172 return -EOPNOTSUPP;
10177 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10178 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10179 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10182 rdev->cur_cmd_info = info;
10183 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10185 rdev->cur_cmd_info = NULL;
10189 return -EOPNOTSUPP;
10192 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10193 struct netlink_callback *cb,
10194 struct cfg80211_registered_device **rdev,
10195 struct wireless_dev **wdev)
10202 unsigned int data_len = 0;
10207 /* subtract the 1 again here */
10208 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10209 struct wireless_dev *tmp;
10215 *rdev = wiphy_to_rdev(wiphy);
10219 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10220 if (tmp->identifier == cb->args[1] - 1) {
10227 /* keep rtnl locked in successful case */
10231 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10232 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10237 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10238 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10243 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10244 nl80211_fam.attrbuf);
10248 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10249 nl80211_fam.attrbuf);
10250 if (IS_ERR(*rdev)) {
10251 err = PTR_ERR(*rdev);
10255 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10256 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10258 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10259 const struct wiphy_vendor_command *vcmd;
10261 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10263 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10266 if (!vcmd->dumpit) {
10275 if (vcmd_idx < 0) {
10280 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10281 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10282 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10285 /* 0 is the first index - add 1 to parse only once */
10286 cb->args[0] = (*rdev)->wiphy_idx + 1;
10287 /* add 1 to know if it was NULL */
10288 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10289 cb->args[2] = vcmd_idx;
10290 cb->args[3] = (unsigned long)data;
10291 cb->args[4] = data_len;
10293 /* keep rtnl locked in successful case */
10300 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10301 struct netlink_callback *cb)
10303 struct cfg80211_registered_device *rdev;
10304 struct wireless_dev *wdev;
10305 unsigned int vcmd_idx;
10306 const struct wiphy_vendor_command *vcmd;
10310 struct nlattr *vendor_data;
10312 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10316 vcmd_idx = cb->args[2];
10317 data = (void *)cb->args[3];
10318 data_len = cb->args[4];
10319 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10321 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10322 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10325 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10329 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10330 if (wdev->netdev &&
10331 !netif_running(wdev->netdev))
10333 if (!wdev->netdev && !wdev->p2p_started)
10339 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10340 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10341 NL80211_CMD_VENDOR);
10345 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10346 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10348 genlmsg_cancel(skb, hdr);
10352 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10353 if (!vendor_data) {
10354 genlmsg_cancel(skb, hdr);
10358 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10359 (unsigned long *)&cb->args[5]);
10360 nla_nest_end(skb, vendor_data);
10362 if (err == -ENOBUFS || err == -ENOENT) {
10363 genlmsg_cancel(skb, hdr);
10366 genlmsg_cancel(skb, hdr);
10370 genlmsg_end(skb, hdr);
10379 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10380 enum nl80211_commands cmd,
10381 enum nl80211_attrs attr,
10384 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10386 if (WARN_ON(!rdev->cur_cmd_info))
10389 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
10390 rdev->cur_cmd_info->snd_portid,
10391 rdev->cur_cmd_info->snd_seq,
10392 cmd, attr, NULL, GFP_KERNEL);
10394 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10396 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10398 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10399 void *hdr = ((void **)skb->cb)[1];
10400 struct nlattr *data = ((void **)skb->cb)[2];
10402 /* clear CB data for netlink core to own from now on */
10403 memset(skb->cb, 0, sizeof(skb->cb));
10405 if (WARN_ON(!rdev->cur_cmd_info)) {
10410 nla_nest_end(skb, data);
10411 genlmsg_end(skb, hdr);
10412 return genlmsg_reply(skb, rdev->cur_cmd_info);
10414 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10417 static int nl80211_set_qos_map(struct sk_buff *skb,
10418 struct genl_info *info)
10420 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10421 struct cfg80211_qos_map *qos_map = NULL;
10422 struct net_device *dev = info->user_ptr[1];
10423 u8 *pos, len, num_des, des_len, des;
10426 if (!rdev->ops->set_qos_map)
10427 return -EOPNOTSUPP;
10429 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10430 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10431 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10433 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10434 len > IEEE80211_QOS_MAP_LEN_MAX)
10437 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10441 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10443 des_len = num_des *
10444 sizeof(struct cfg80211_dscp_exception);
10445 memcpy(qos_map->dscp_exception, pos, des_len);
10446 qos_map->num_des = num_des;
10447 for (des = 0; des < num_des; des++) {
10448 if (qos_map->dscp_exception[des].up > 7) {
10455 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10458 wdev_lock(dev->ieee80211_ptr);
10459 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10461 ret = rdev_set_qos_map(rdev, dev, qos_map);
10462 wdev_unlock(dev->ieee80211_ptr);
10468 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10470 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10471 struct net_device *dev = info->user_ptr[1];
10472 struct wireless_dev *wdev = dev->ieee80211_ptr;
10475 u16 admitted_time = 0;
10478 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10479 return -EOPNOTSUPP;
10481 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10482 !info->attrs[NL80211_ATTR_USER_PRIO])
10485 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10486 if (tsid >= IEEE80211_NUM_TIDS)
10489 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10490 if (up >= IEEE80211_NUM_UPS)
10493 /* WMM uses TIDs 0-7 even for TSPEC */
10494 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10495 /* TODO: handle 802.11 TSPEC/admission control
10496 * need more attributes for that (e.g. BA session requirement);
10497 * change the WMM adminssion test above to allow both then
10502 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10504 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10506 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10507 if (!admitted_time)
10512 switch (wdev->iftype) {
10513 case NL80211_IFTYPE_STATION:
10514 case NL80211_IFTYPE_P2P_CLIENT:
10515 if (wdev->current_bss)
10524 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10531 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10533 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10534 struct net_device *dev = info->user_ptr[1];
10535 struct wireless_dev *wdev = dev->ieee80211_ptr;
10540 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10543 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10544 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10547 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10553 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10554 struct genl_info *info)
10556 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10557 struct net_device *dev = info->user_ptr[1];
10558 struct wireless_dev *wdev = dev->ieee80211_ptr;
10559 struct cfg80211_chan_def chandef = {};
10564 if (!rdev->ops->tdls_channel_switch ||
10565 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10566 return -EOPNOTSUPP;
10568 switch (dev->ieee80211_ptr->iftype) {
10569 case NL80211_IFTYPE_STATION:
10570 case NL80211_IFTYPE_P2P_CLIENT:
10573 return -EOPNOTSUPP;
10576 if (!info->attrs[NL80211_ATTR_MAC] ||
10577 !info->attrs[NL80211_ATTR_OPER_CLASS])
10580 err = nl80211_parse_chandef(rdev, info, &chandef);
10585 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10586 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10587 * specification is not defined for them.
10589 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10590 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10591 chandef.width != NL80211_CHAN_WIDTH_20)
10594 /* we will be active on the TDLS link */
10595 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10599 /* don't allow switching to DFS channels */
10600 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10603 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10604 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10607 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10613 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10614 struct genl_info *info)
10616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10617 struct net_device *dev = info->user_ptr[1];
10618 struct wireless_dev *wdev = dev->ieee80211_ptr;
10621 if (!rdev->ops->tdls_channel_switch ||
10622 !rdev->ops->tdls_cancel_channel_switch ||
10623 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10624 return -EOPNOTSUPP;
10626 switch (dev->ieee80211_ptr->iftype) {
10627 case NL80211_IFTYPE_STATION:
10628 case NL80211_IFTYPE_P2P_CLIENT:
10631 return -EOPNOTSUPP;
10634 if (!info->attrs[NL80211_ATTR_MAC])
10637 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10640 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10646 #define NL80211_FLAG_NEED_WIPHY 0x01
10647 #define NL80211_FLAG_NEED_NETDEV 0x02
10648 #define NL80211_FLAG_NEED_RTNL 0x04
10649 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10650 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10651 NL80211_FLAG_CHECK_NETDEV_UP)
10652 #define NL80211_FLAG_NEED_WDEV 0x10
10653 /* If a netdev is associated, it must be UP, P2P must be started */
10654 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10655 NL80211_FLAG_CHECK_NETDEV_UP)
10656 #define NL80211_FLAG_CLEAR_SKB 0x20
10658 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10659 struct genl_info *info)
10661 struct cfg80211_registered_device *rdev;
10662 struct wireless_dev *wdev;
10663 struct net_device *dev;
10664 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10669 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10670 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10671 if (IS_ERR(rdev)) {
10674 return PTR_ERR(rdev);
10676 info->user_ptr[0] = rdev;
10677 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10678 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10681 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10683 if (IS_ERR(wdev)) {
10686 return PTR_ERR(wdev);
10689 dev = wdev->netdev;
10690 rdev = wiphy_to_rdev(wdev->wiphy);
10692 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10699 info->user_ptr[1] = dev;
10701 info->user_ptr[1] = wdev;
10705 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10706 !netif_running(dev)) {
10713 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10714 if (!wdev->p2p_started) {
10721 info->user_ptr[0] = rdev;
10727 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10728 struct genl_info *info)
10730 if (info->user_ptr[1]) {
10731 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10732 struct wireless_dev *wdev = info->user_ptr[1];
10735 dev_put(wdev->netdev);
10737 dev_put(info->user_ptr[1]);
10741 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10744 /* If needed, clear the netlink message payload from the SKB
10745 * as it might contain key data that shouldn't stick around on
10746 * the heap after the SKB is freed. The netlink message header
10747 * is still needed for further processing, so leave it intact.
10749 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10750 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10752 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10756 static const struct genl_ops nl80211_ops[] = {
10758 .cmd = NL80211_CMD_GET_WIPHY,
10759 .doit = nl80211_get_wiphy,
10760 .dumpit = nl80211_dump_wiphy,
10761 .done = nl80211_dump_wiphy_done,
10762 .policy = nl80211_policy,
10763 /* can be retrieved by unprivileged users */
10764 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10765 NL80211_FLAG_NEED_RTNL,
10768 .cmd = NL80211_CMD_SET_WIPHY,
10769 .doit = nl80211_set_wiphy,
10770 .policy = nl80211_policy,
10771 .flags = GENL_ADMIN_PERM,
10772 .internal_flags = NL80211_FLAG_NEED_RTNL,
10775 .cmd = NL80211_CMD_GET_INTERFACE,
10776 .doit = nl80211_get_interface,
10777 .dumpit = nl80211_dump_interface,
10778 .policy = nl80211_policy,
10779 /* can be retrieved by unprivileged users */
10780 .internal_flags = NL80211_FLAG_NEED_WDEV |
10781 NL80211_FLAG_NEED_RTNL,
10784 .cmd = NL80211_CMD_SET_INTERFACE,
10785 .doit = nl80211_set_interface,
10786 .policy = nl80211_policy,
10787 .flags = GENL_ADMIN_PERM,
10788 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10789 NL80211_FLAG_NEED_RTNL,
10792 .cmd = NL80211_CMD_NEW_INTERFACE,
10793 .doit = nl80211_new_interface,
10794 .policy = nl80211_policy,
10795 .flags = GENL_ADMIN_PERM,
10796 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10797 NL80211_FLAG_NEED_RTNL,
10800 .cmd = NL80211_CMD_DEL_INTERFACE,
10801 .doit = nl80211_del_interface,
10802 .policy = nl80211_policy,
10803 .flags = GENL_ADMIN_PERM,
10804 .internal_flags = NL80211_FLAG_NEED_WDEV |
10805 NL80211_FLAG_NEED_RTNL,
10808 .cmd = NL80211_CMD_GET_KEY,
10809 .doit = nl80211_get_key,
10810 .policy = nl80211_policy,
10811 .flags = GENL_ADMIN_PERM,
10812 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10813 NL80211_FLAG_NEED_RTNL,
10816 .cmd = NL80211_CMD_SET_KEY,
10817 .doit = nl80211_set_key,
10818 .policy = nl80211_policy,
10819 .flags = GENL_ADMIN_PERM,
10820 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10821 NL80211_FLAG_NEED_RTNL |
10822 NL80211_FLAG_CLEAR_SKB,
10825 .cmd = NL80211_CMD_NEW_KEY,
10826 .doit = nl80211_new_key,
10827 .policy = nl80211_policy,
10828 .flags = GENL_ADMIN_PERM,
10829 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10830 NL80211_FLAG_NEED_RTNL |
10831 NL80211_FLAG_CLEAR_SKB,
10834 .cmd = NL80211_CMD_DEL_KEY,
10835 .doit = nl80211_del_key,
10836 .policy = nl80211_policy,
10837 .flags = GENL_ADMIN_PERM,
10838 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10839 NL80211_FLAG_NEED_RTNL,
10842 .cmd = NL80211_CMD_SET_BEACON,
10843 .policy = nl80211_policy,
10844 .flags = GENL_ADMIN_PERM,
10845 .doit = nl80211_set_beacon,
10846 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10847 NL80211_FLAG_NEED_RTNL,
10850 .cmd = NL80211_CMD_START_AP,
10851 .policy = nl80211_policy,
10852 .flags = GENL_ADMIN_PERM,
10853 .doit = nl80211_start_ap,
10854 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10855 NL80211_FLAG_NEED_RTNL,
10858 .cmd = NL80211_CMD_STOP_AP,
10859 .policy = nl80211_policy,
10860 .flags = GENL_ADMIN_PERM,
10861 .doit = nl80211_stop_ap,
10862 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10863 NL80211_FLAG_NEED_RTNL,
10866 .cmd = NL80211_CMD_GET_STATION,
10867 .doit = nl80211_get_station,
10868 .dumpit = nl80211_dump_station,
10869 .policy = nl80211_policy,
10870 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10871 NL80211_FLAG_NEED_RTNL,
10874 .cmd = NL80211_CMD_SET_STATION,
10875 .doit = nl80211_set_station,
10876 .policy = nl80211_policy,
10877 .flags = GENL_ADMIN_PERM,
10878 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10879 NL80211_FLAG_NEED_RTNL,
10882 .cmd = NL80211_CMD_NEW_STATION,
10883 .doit = nl80211_new_station,
10884 .policy = nl80211_policy,
10885 .flags = GENL_ADMIN_PERM,
10886 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10887 NL80211_FLAG_NEED_RTNL,
10890 .cmd = NL80211_CMD_DEL_STATION,
10891 .doit = nl80211_del_station,
10892 .policy = nl80211_policy,
10893 .flags = GENL_ADMIN_PERM,
10894 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10895 NL80211_FLAG_NEED_RTNL,
10898 .cmd = NL80211_CMD_GET_MPATH,
10899 .doit = nl80211_get_mpath,
10900 .dumpit = nl80211_dump_mpath,
10901 .policy = nl80211_policy,
10902 .flags = GENL_ADMIN_PERM,
10903 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10904 NL80211_FLAG_NEED_RTNL,
10907 .cmd = NL80211_CMD_GET_MPP,
10908 .doit = nl80211_get_mpp,
10909 .dumpit = nl80211_dump_mpp,
10910 .policy = nl80211_policy,
10911 .flags = GENL_ADMIN_PERM,
10912 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10913 NL80211_FLAG_NEED_RTNL,
10916 .cmd = NL80211_CMD_SET_MPATH,
10917 .doit = nl80211_set_mpath,
10918 .policy = nl80211_policy,
10919 .flags = GENL_ADMIN_PERM,
10920 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10921 NL80211_FLAG_NEED_RTNL,
10924 .cmd = NL80211_CMD_NEW_MPATH,
10925 .doit = nl80211_new_mpath,
10926 .policy = nl80211_policy,
10927 .flags = GENL_ADMIN_PERM,
10928 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10929 NL80211_FLAG_NEED_RTNL,
10932 .cmd = NL80211_CMD_DEL_MPATH,
10933 .doit = nl80211_del_mpath,
10934 .policy = nl80211_policy,
10935 .flags = GENL_ADMIN_PERM,
10936 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10937 NL80211_FLAG_NEED_RTNL,
10940 .cmd = NL80211_CMD_SET_BSS,
10941 .doit = nl80211_set_bss,
10942 .policy = nl80211_policy,
10943 .flags = GENL_ADMIN_PERM,
10944 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10945 NL80211_FLAG_NEED_RTNL,
10948 .cmd = NL80211_CMD_GET_REG,
10949 .doit = nl80211_get_reg_do,
10950 .dumpit = nl80211_get_reg_dump,
10951 .policy = nl80211_policy,
10952 .internal_flags = NL80211_FLAG_NEED_RTNL,
10953 /* can be retrieved by unprivileged users */
10955 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
10957 .cmd = NL80211_CMD_SET_REG,
10958 .doit = nl80211_set_reg,
10959 .policy = nl80211_policy,
10960 .flags = GENL_ADMIN_PERM,
10961 .internal_flags = NL80211_FLAG_NEED_RTNL,
10965 .cmd = NL80211_CMD_REQ_SET_REG,
10966 .doit = nl80211_req_set_reg,
10967 .policy = nl80211_policy,
10968 .flags = GENL_ADMIN_PERM,
10971 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10972 .doit = nl80211_get_mesh_config,
10973 .policy = nl80211_policy,
10974 /* can be retrieved by unprivileged users */
10975 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10976 NL80211_FLAG_NEED_RTNL,
10979 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10980 .doit = nl80211_update_mesh_config,
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_TRIGGER_SCAN,
10988 .doit = nl80211_trigger_scan,
10989 .policy = nl80211_policy,
10990 .flags = GENL_ADMIN_PERM,
10991 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10992 NL80211_FLAG_NEED_RTNL,
10995 .cmd = NL80211_CMD_ABORT_SCAN,
10996 .doit = nl80211_abort_scan,
10997 .policy = nl80211_policy,
10998 .flags = GENL_ADMIN_PERM,
10999 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11000 NL80211_FLAG_NEED_RTNL,
11003 .cmd = NL80211_CMD_GET_SCAN,
11004 .policy = nl80211_policy,
11005 .dumpit = nl80211_dump_scan,
11008 .cmd = NL80211_CMD_START_SCHED_SCAN,
11009 .doit = nl80211_start_sched_scan,
11010 .policy = nl80211_policy,
11011 .flags = GENL_ADMIN_PERM,
11012 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11013 NL80211_FLAG_NEED_RTNL,
11016 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11017 .doit = nl80211_stop_sched_scan,
11018 .policy = nl80211_policy,
11019 .flags = GENL_ADMIN_PERM,
11020 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11021 NL80211_FLAG_NEED_RTNL,
11024 .cmd = NL80211_CMD_AUTHENTICATE,
11025 .doit = nl80211_authenticate,
11026 .policy = nl80211_policy,
11027 .flags = GENL_ADMIN_PERM,
11028 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11029 NL80211_FLAG_NEED_RTNL |
11030 NL80211_FLAG_CLEAR_SKB,
11033 .cmd = NL80211_CMD_ASSOCIATE,
11034 .doit = nl80211_associate,
11035 .policy = nl80211_policy,
11036 .flags = GENL_ADMIN_PERM,
11037 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11038 NL80211_FLAG_NEED_RTNL,
11041 .cmd = NL80211_CMD_DEAUTHENTICATE,
11042 .doit = nl80211_deauthenticate,
11043 .policy = nl80211_policy,
11044 .flags = GENL_ADMIN_PERM,
11045 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11046 NL80211_FLAG_NEED_RTNL,
11049 .cmd = NL80211_CMD_DISASSOCIATE,
11050 .doit = nl80211_disassociate,
11051 .policy = nl80211_policy,
11052 .flags = GENL_ADMIN_PERM,
11053 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11054 NL80211_FLAG_NEED_RTNL,
11057 .cmd = NL80211_CMD_JOIN_IBSS,
11058 .doit = nl80211_join_ibss,
11059 .policy = nl80211_policy,
11060 .flags = GENL_ADMIN_PERM,
11061 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11062 NL80211_FLAG_NEED_RTNL,
11065 .cmd = NL80211_CMD_LEAVE_IBSS,
11066 .doit = nl80211_leave_ibss,
11067 .policy = nl80211_policy,
11068 .flags = GENL_ADMIN_PERM,
11069 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11070 NL80211_FLAG_NEED_RTNL,
11072 #ifdef CONFIG_NL80211_TESTMODE
11074 .cmd = NL80211_CMD_TESTMODE,
11075 .doit = nl80211_testmode_do,
11076 .dumpit = nl80211_testmode_dump,
11077 .policy = nl80211_policy,
11078 .flags = GENL_ADMIN_PERM,
11079 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11080 NL80211_FLAG_NEED_RTNL,
11084 .cmd = NL80211_CMD_CONNECT,
11085 .doit = nl80211_connect,
11086 .policy = nl80211_policy,
11087 .flags = GENL_ADMIN_PERM,
11088 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11089 NL80211_FLAG_NEED_RTNL,
11092 .cmd = NL80211_CMD_DISCONNECT,
11093 .doit = nl80211_disconnect,
11094 .policy = nl80211_policy,
11095 .flags = GENL_ADMIN_PERM,
11096 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11097 NL80211_FLAG_NEED_RTNL,
11100 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11101 .doit = nl80211_wiphy_netns,
11102 .policy = nl80211_policy,
11103 .flags = GENL_ADMIN_PERM,
11104 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11105 NL80211_FLAG_NEED_RTNL,
11108 .cmd = NL80211_CMD_GET_SURVEY,
11109 .policy = nl80211_policy,
11110 .dumpit = nl80211_dump_survey,
11113 .cmd = NL80211_CMD_SET_PMKSA,
11114 .doit = nl80211_setdel_pmksa,
11115 .policy = nl80211_policy,
11116 .flags = GENL_ADMIN_PERM,
11117 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11118 NL80211_FLAG_NEED_RTNL,
11121 .cmd = NL80211_CMD_DEL_PMKSA,
11122 .doit = nl80211_setdel_pmksa,
11123 .policy = nl80211_policy,
11124 .flags = GENL_ADMIN_PERM,
11125 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11126 NL80211_FLAG_NEED_RTNL,
11129 .cmd = NL80211_CMD_FLUSH_PMKSA,
11130 .doit = nl80211_flush_pmksa,
11131 .policy = nl80211_policy,
11132 .flags = GENL_ADMIN_PERM,
11133 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11134 NL80211_FLAG_NEED_RTNL,
11137 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11138 .doit = nl80211_remain_on_channel,
11139 .policy = nl80211_policy,
11140 .flags = GENL_ADMIN_PERM,
11141 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11142 NL80211_FLAG_NEED_RTNL,
11145 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11146 .doit = nl80211_cancel_remain_on_channel,
11147 .policy = nl80211_policy,
11148 .flags = GENL_ADMIN_PERM,
11149 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11150 NL80211_FLAG_NEED_RTNL,
11153 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11154 .doit = nl80211_set_tx_bitrate_mask,
11155 .policy = nl80211_policy,
11156 .flags = GENL_ADMIN_PERM,
11157 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11158 NL80211_FLAG_NEED_RTNL,
11161 .cmd = NL80211_CMD_REGISTER_FRAME,
11162 .doit = nl80211_register_mgmt,
11163 .policy = nl80211_policy,
11164 .flags = GENL_ADMIN_PERM,
11165 .internal_flags = NL80211_FLAG_NEED_WDEV |
11166 NL80211_FLAG_NEED_RTNL,
11169 .cmd = NL80211_CMD_FRAME,
11170 .doit = nl80211_tx_mgmt,
11171 .policy = nl80211_policy,
11172 .flags = GENL_ADMIN_PERM,
11173 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11174 NL80211_FLAG_NEED_RTNL,
11177 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11178 .doit = nl80211_tx_mgmt_cancel_wait,
11179 .policy = nl80211_policy,
11180 .flags = GENL_ADMIN_PERM,
11181 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11182 NL80211_FLAG_NEED_RTNL,
11185 .cmd = NL80211_CMD_SET_POWER_SAVE,
11186 .doit = nl80211_set_power_save,
11187 .policy = nl80211_policy,
11188 .flags = GENL_ADMIN_PERM,
11189 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11190 NL80211_FLAG_NEED_RTNL,
11193 .cmd = NL80211_CMD_GET_POWER_SAVE,
11194 .doit = nl80211_get_power_save,
11195 .policy = nl80211_policy,
11196 /* can be retrieved by unprivileged users */
11197 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11198 NL80211_FLAG_NEED_RTNL,
11201 .cmd = NL80211_CMD_SET_CQM,
11202 .doit = nl80211_set_cqm,
11203 .policy = nl80211_policy,
11204 .flags = GENL_ADMIN_PERM,
11205 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11206 NL80211_FLAG_NEED_RTNL,
11209 .cmd = NL80211_CMD_SET_CHANNEL,
11210 .doit = nl80211_set_channel,
11211 .policy = nl80211_policy,
11212 .flags = GENL_ADMIN_PERM,
11213 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11214 NL80211_FLAG_NEED_RTNL,
11217 .cmd = NL80211_CMD_SET_WDS_PEER,
11218 .doit = nl80211_set_wds_peer,
11219 .policy = nl80211_policy,
11220 .flags = GENL_ADMIN_PERM,
11221 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11222 NL80211_FLAG_NEED_RTNL,
11225 .cmd = NL80211_CMD_JOIN_MESH,
11226 .doit = nl80211_join_mesh,
11227 .policy = nl80211_policy,
11228 .flags = GENL_ADMIN_PERM,
11229 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11230 NL80211_FLAG_NEED_RTNL,
11233 .cmd = NL80211_CMD_LEAVE_MESH,
11234 .doit = nl80211_leave_mesh,
11235 .policy = nl80211_policy,
11236 .flags = GENL_ADMIN_PERM,
11237 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11238 NL80211_FLAG_NEED_RTNL,
11241 .cmd = NL80211_CMD_JOIN_OCB,
11242 .doit = nl80211_join_ocb,
11243 .policy = nl80211_policy,
11244 .flags = GENL_ADMIN_PERM,
11245 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11246 NL80211_FLAG_NEED_RTNL,
11249 .cmd = NL80211_CMD_LEAVE_OCB,
11250 .doit = nl80211_leave_ocb,
11251 .policy = nl80211_policy,
11252 .flags = GENL_ADMIN_PERM,
11253 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11254 NL80211_FLAG_NEED_RTNL,
11258 .cmd = NL80211_CMD_GET_WOWLAN,
11259 .doit = nl80211_get_wowlan,
11260 .policy = nl80211_policy,
11261 /* can be retrieved by unprivileged users */
11262 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11263 NL80211_FLAG_NEED_RTNL,
11266 .cmd = NL80211_CMD_SET_WOWLAN,
11267 .doit = nl80211_set_wowlan,
11268 .policy = nl80211_policy,
11269 .flags = GENL_ADMIN_PERM,
11270 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11271 NL80211_FLAG_NEED_RTNL,
11275 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11276 .doit = nl80211_set_rekey_data,
11277 .policy = nl80211_policy,
11278 .flags = GENL_ADMIN_PERM,
11279 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11280 NL80211_FLAG_NEED_RTNL |
11281 NL80211_FLAG_CLEAR_SKB,
11284 .cmd = NL80211_CMD_TDLS_MGMT,
11285 .doit = nl80211_tdls_mgmt,
11286 .policy = nl80211_policy,
11287 .flags = GENL_ADMIN_PERM,
11288 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11289 NL80211_FLAG_NEED_RTNL,
11292 .cmd = NL80211_CMD_TDLS_OPER,
11293 .doit = nl80211_tdls_oper,
11294 .policy = nl80211_policy,
11295 .flags = GENL_ADMIN_PERM,
11296 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11297 NL80211_FLAG_NEED_RTNL,
11300 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11301 .doit = nl80211_register_unexpected_frame,
11302 .policy = nl80211_policy,
11303 .flags = GENL_ADMIN_PERM,
11304 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11305 NL80211_FLAG_NEED_RTNL,
11308 .cmd = NL80211_CMD_PROBE_CLIENT,
11309 .doit = nl80211_probe_client,
11310 .policy = nl80211_policy,
11311 .flags = GENL_ADMIN_PERM,
11312 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11313 NL80211_FLAG_NEED_RTNL,
11316 .cmd = NL80211_CMD_REGISTER_BEACONS,
11317 .doit = nl80211_register_beacons,
11318 .policy = nl80211_policy,
11319 .flags = GENL_ADMIN_PERM,
11320 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11321 NL80211_FLAG_NEED_RTNL,
11324 .cmd = NL80211_CMD_SET_NOACK_MAP,
11325 .doit = nl80211_set_noack_map,
11326 .policy = nl80211_policy,
11327 .flags = GENL_ADMIN_PERM,
11328 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11329 NL80211_FLAG_NEED_RTNL,
11332 .cmd = NL80211_CMD_START_P2P_DEVICE,
11333 .doit = nl80211_start_p2p_device,
11334 .policy = nl80211_policy,
11335 .flags = GENL_ADMIN_PERM,
11336 .internal_flags = NL80211_FLAG_NEED_WDEV |
11337 NL80211_FLAG_NEED_RTNL,
11340 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11341 .doit = nl80211_stop_p2p_device,
11342 .policy = nl80211_policy,
11343 .flags = GENL_ADMIN_PERM,
11344 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11345 NL80211_FLAG_NEED_RTNL,
11348 .cmd = NL80211_CMD_SET_MCAST_RATE,
11349 .doit = nl80211_set_mcast_rate,
11350 .policy = nl80211_policy,
11351 .flags = GENL_ADMIN_PERM,
11352 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11353 NL80211_FLAG_NEED_RTNL,
11356 .cmd = NL80211_CMD_SET_MAC_ACL,
11357 .doit = nl80211_set_mac_acl,
11358 .policy = nl80211_policy,
11359 .flags = GENL_ADMIN_PERM,
11360 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11361 NL80211_FLAG_NEED_RTNL,
11364 .cmd = NL80211_CMD_RADAR_DETECT,
11365 .doit = nl80211_start_radar_detection,
11366 .policy = nl80211_policy,
11367 .flags = GENL_ADMIN_PERM,
11368 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11369 NL80211_FLAG_NEED_RTNL,
11372 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11373 .doit = nl80211_get_protocol_features,
11374 .policy = nl80211_policy,
11377 .cmd = NL80211_CMD_UPDATE_FT_IES,
11378 .doit = nl80211_update_ft_ies,
11379 .policy = nl80211_policy,
11380 .flags = GENL_ADMIN_PERM,
11381 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11382 NL80211_FLAG_NEED_RTNL,
11385 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11386 .doit = nl80211_crit_protocol_start,
11387 .policy = nl80211_policy,
11388 .flags = GENL_ADMIN_PERM,
11389 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11390 NL80211_FLAG_NEED_RTNL,
11393 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11394 .doit = nl80211_crit_protocol_stop,
11395 .policy = nl80211_policy,
11396 .flags = GENL_ADMIN_PERM,
11397 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11398 NL80211_FLAG_NEED_RTNL,
11401 .cmd = NL80211_CMD_GET_COALESCE,
11402 .doit = nl80211_get_coalesce,
11403 .policy = nl80211_policy,
11404 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11405 NL80211_FLAG_NEED_RTNL,
11408 .cmd = NL80211_CMD_SET_COALESCE,
11409 .doit = nl80211_set_coalesce,
11410 .policy = nl80211_policy,
11411 .flags = GENL_ADMIN_PERM,
11412 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11413 NL80211_FLAG_NEED_RTNL,
11416 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11417 .doit = nl80211_channel_switch,
11418 .policy = nl80211_policy,
11419 .flags = GENL_ADMIN_PERM,
11420 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11421 NL80211_FLAG_NEED_RTNL,
11424 .cmd = NL80211_CMD_VENDOR,
11425 .doit = nl80211_vendor_cmd,
11426 .dumpit = nl80211_vendor_cmd_dump,
11427 .policy = nl80211_policy,
11428 .flags = GENL_ADMIN_PERM,
11429 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11430 NL80211_FLAG_NEED_RTNL,
11433 .cmd = NL80211_CMD_SET_QOS_MAP,
11434 .doit = nl80211_set_qos_map,
11435 .policy = nl80211_policy,
11436 .flags = GENL_ADMIN_PERM,
11437 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11438 NL80211_FLAG_NEED_RTNL,
11441 .cmd = NL80211_CMD_ADD_TX_TS,
11442 .doit = nl80211_add_tx_ts,
11443 .policy = nl80211_policy,
11444 .flags = GENL_ADMIN_PERM,
11445 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11446 NL80211_FLAG_NEED_RTNL,
11449 .cmd = NL80211_CMD_DEL_TX_TS,
11450 .doit = nl80211_del_tx_ts,
11451 .policy = nl80211_policy,
11452 .flags = GENL_ADMIN_PERM,
11453 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11454 NL80211_FLAG_NEED_RTNL,
11457 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11458 .doit = nl80211_tdls_channel_switch,
11459 .policy = nl80211_policy,
11460 .flags = GENL_ADMIN_PERM,
11461 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11462 NL80211_FLAG_NEED_RTNL,
11465 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11466 .doit = nl80211_tdls_cancel_channel_switch,
11467 .policy = nl80211_policy,
11468 .flags = GENL_ADMIN_PERM,
11469 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11470 NL80211_FLAG_NEED_RTNL,
11474 /* notification functions */
11476 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11477 enum nl80211_commands cmd)
11479 struct sk_buff *msg;
11480 struct nl80211_dump_wiphy_state state = {};
11482 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11483 cmd != NL80211_CMD_DEL_WIPHY);
11485 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11489 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11494 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11495 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11498 static int nl80211_add_scan_req(struct sk_buff *msg,
11499 struct cfg80211_registered_device *rdev)
11501 struct cfg80211_scan_request *req = rdev->scan_req;
11502 struct nlattr *nest;
11508 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11510 goto nla_put_failure;
11511 for (i = 0; i < req->n_ssids; i++) {
11512 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11513 goto nla_put_failure;
11515 nla_nest_end(msg, nest);
11517 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11519 goto nla_put_failure;
11520 for (i = 0; i < req->n_channels; i++) {
11521 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11522 goto nla_put_failure;
11524 nla_nest_end(msg, nest);
11527 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11528 goto nla_put_failure;
11531 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11532 goto nla_put_failure;
11539 static int nl80211_send_scan_msg(struct sk_buff *msg,
11540 struct cfg80211_registered_device *rdev,
11541 struct wireless_dev *wdev,
11542 u32 portid, u32 seq, int flags,
11547 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11551 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11552 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11553 wdev->netdev->ifindex)) ||
11554 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11555 goto nla_put_failure;
11557 /* ignore errors and send incomplete event anyway */
11558 nl80211_add_scan_req(msg, rdev);
11560 genlmsg_end(msg, hdr);
11564 genlmsg_cancel(msg, hdr);
11569 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11570 struct cfg80211_registered_device *rdev,
11571 struct net_device *netdev,
11572 u32 portid, u32 seq, int flags, u32 cmd)
11576 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11580 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11581 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11582 goto nla_put_failure;
11584 genlmsg_end(msg, hdr);
11588 genlmsg_cancel(msg, hdr);
11592 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11593 struct wireless_dev *wdev)
11595 struct sk_buff *msg;
11597 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11601 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11602 NL80211_CMD_TRIGGER_SCAN) < 0) {
11607 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11608 NL80211_MCGRP_SCAN, GFP_KERNEL);
11611 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11612 struct wireless_dev *wdev, bool aborted)
11614 struct sk_buff *msg;
11616 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11620 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11621 aborted ? NL80211_CMD_SCAN_ABORTED :
11622 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11630 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11631 struct sk_buff *msg)
11636 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11637 NL80211_MCGRP_SCAN, GFP_KERNEL);
11640 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11641 struct net_device *netdev)
11643 struct sk_buff *msg;
11645 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11649 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11650 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11655 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11656 NL80211_MCGRP_SCAN, GFP_KERNEL);
11659 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11660 struct net_device *netdev, u32 cmd)
11662 struct sk_buff *msg;
11664 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11668 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11673 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11674 NL80211_MCGRP_SCAN, GFP_KERNEL);
11677 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11678 struct regulatory_request *request)
11680 /* Userspace can always count this one always being set */
11681 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11682 goto nla_put_failure;
11684 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11685 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11686 NL80211_REGDOM_TYPE_WORLD))
11687 goto nla_put_failure;
11688 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11689 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11690 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11691 goto nla_put_failure;
11692 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11693 request->intersect) {
11694 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11695 NL80211_REGDOM_TYPE_INTERSECTION))
11696 goto nla_put_failure;
11698 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11699 NL80211_REGDOM_TYPE_COUNTRY) ||
11700 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11702 goto nla_put_failure;
11705 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11706 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11709 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11710 goto nla_put_failure;
11713 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11714 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11715 goto nla_put_failure;
11725 * This can happen on global regulatory changes or device specific settings
11726 * based on custom regulatory domains.
11728 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11729 struct regulatory_request *request)
11731 struct sk_buff *msg;
11734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11738 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11744 if (nl80211_reg_change_event_fill(msg, request) == false)
11745 goto nla_put_failure;
11747 genlmsg_end(msg, hdr);
11750 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11751 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11757 genlmsg_cancel(msg, hdr);
11761 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11762 struct net_device *netdev,
11763 const u8 *buf, size_t len,
11764 enum nl80211_commands cmd, gfp_t gfp,
11767 struct sk_buff *msg;
11770 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11774 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11780 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11781 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11782 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11783 goto nla_put_failure;
11785 if (uapsd_queues >= 0) {
11786 struct nlattr *nla_wmm =
11787 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11789 goto nla_put_failure;
11791 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11793 goto nla_put_failure;
11795 nla_nest_end(msg, nla_wmm);
11798 genlmsg_end(msg, hdr);
11800 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11801 NL80211_MCGRP_MLME, gfp);
11805 genlmsg_cancel(msg, hdr);
11809 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11810 struct net_device *netdev, const u8 *buf,
11811 size_t len, gfp_t gfp)
11813 nl80211_send_mlme_event(rdev, netdev, buf, len,
11814 NL80211_CMD_AUTHENTICATE, gfp, -1);
11817 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11818 struct net_device *netdev, const u8 *buf,
11819 size_t len, gfp_t gfp, int uapsd_queues)
11821 nl80211_send_mlme_event(rdev, netdev, buf, len,
11822 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11825 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11826 struct net_device *netdev, const u8 *buf,
11827 size_t len, gfp_t gfp)
11829 nl80211_send_mlme_event(rdev, netdev, buf, len,
11830 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11833 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11834 struct net_device *netdev, const u8 *buf,
11835 size_t len, gfp_t gfp)
11837 nl80211_send_mlme_event(rdev, netdev, buf, len,
11838 NL80211_CMD_DISASSOCIATE, gfp, -1);
11841 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11844 struct wireless_dev *wdev = dev->ieee80211_ptr;
11845 struct wiphy *wiphy = wdev->wiphy;
11846 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11847 const struct ieee80211_mgmt *mgmt = (void *)buf;
11850 if (WARN_ON(len < 2))
11853 if (ieee80211_is_deauth(mgmt->frame_control))
11854 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11856 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11858 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11859 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11861 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11863 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11864 struct net_device *netdev, int cmd,
11865 const u8 *addr, gfp_t gfp)
11867 struct sk_buff *msg;
11870 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11874 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11880 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11881 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11882 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11883 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11884 goto nla_put_failure;
11886 genlmsg_end(msg, hdr);
11888 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11889 NL80211_MCGRP_MLME, gfp);
11893 genlmsg_cancel(msg, hdr);
11897 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11898 struct net_device *netdev, const u8 *addr,
11901 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11905 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11906 struct net_device *netdev, const u8 *addr,
11909 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11913 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11914 struct net_device *netdev, const u8 *bssid,
11915 const u8 *req_ie, size_t req_ie_len,
11916 const u8 *resp_ie, size_t resp_ie_len,
11917 u16 status, gfp_t gfp)
11919 struct sk_buff *msg;
11922 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11926 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11932 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11933 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11934 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11935 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11937 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11939 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11940 goto nla_put_failure;
11942 genlmsg_end(msg, hdr);
11944 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11945 NL80211_MCGRP_MLME, gfp);
11949 genlmsg_cancel(msg, hdr);
11954 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11955 struct net_device *netdev, const u8 *bssid,
11956 const u8 *req_ie, size_t req_ie_len,
11957 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11959 struct sk_buff *msg;
11962 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11966 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11972 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11973 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11974 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11976 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11978 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11979 goto nla_put_failure;
11981 genlmsg_end(msg, hdr);
11983 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11984 NL80211_MCGRP_MLME, gfp);
11988 genlmsg_cancel(msg, hdr);
11993 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11994 struct net_device *netdev, u16 reason,
11995 const u8 *ie, size_t ie_len, bool from_ap)
11997 struct sk_buff *msg;
12000 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12004 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
12010 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12011 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12012 (from_ap && reason &&
12013 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12015 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12016 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12017 goto nla_put_failure;
12019 genlmsg_end(msg, hdr);
12021 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12022 NL80211_MCGRP_MLME, GFP_KERNEL);
12026 genlmsg_cancel(msg, hdr);
12031 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12032 struct net_device *netdev, const u8 *bssid,
12035 struct sk_buff *msg;
12038 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12042 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12048 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12049 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12050 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12051 goto nla_put_failure;
12053 genlmsg_end(msg, hdr);
12055 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12056 NL80211_MCGRP_MLME, gfp);
12060 genlmsg_cancel(msg, hdr);
12064 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12065 const u8* ie, u8 ie_len, gfp_t gfp)
12067 struct wireless_dev *wdev = dev->ieee80211_ptr;
12068 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12069 struct sk_buff *msg;
12072 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12075 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12077 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12081 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12087 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12088 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12089 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12091 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12092 goto nla_put_failure;
12094 genlmsg_end(msg, hdr);
12096 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12097 NL80211_MCGRP_MLME, gfp);
12101 genlmsg_cancel(msg, hdr);
12104 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
12106 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12107 struct net_device *netdev, const u8 *addr,
12108 enum nl80211_key_type key_type, int key_id,
12109 const u8 *tsc, gfp_t gfp)
12111 struct sk_buff *msg;
12114 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12118 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12124 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12125 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12126 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12127 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12129 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12130 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12131 goto nla_put_failure;
12133 genlmsg_end(msg, hdr);
12135 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12136 NL80211_MCGRP_MLME, gfp);
12140 genlmsg_cancel(msg, hdr);
12144 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12145 struct ieee80211_channel *channel_before,
12146 struct ieee80211_channel *channel_after)
12148 struct sk_buff *msg;
12150 struct nlattr *nl_freq;
12152 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
12156 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12163 * Since we are applying the beacon hint to a wiphy we know its
12164 * wiphy_idx is valid
12166 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12167 goto nla_put_failure;
12170 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12172 goto nla_put_failure;
12173 if (nl80211_msg_put_channel(msg, channel_before, false))
12174 goto nla_put_failure;
12175 nla_nest_end(msg, nl_freq);
12178 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12180 goto nla_put_failure;
12181 if (nl80211_msg_put_channel(msg, channel_after, false))
12182 goto nla_put_failure;
12183 nla_nest_end(msg, nl_freq);
12185 genlmsg_end(msg, hdr);
12188 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12189 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12195 genlmsg_cancel(msg, hdr);
12199 static void nl80211_send_remain_on_chan_event(
12200 int cmd, struct cfg80211_registered_device *rdev,
12201 struct wireless_dev *wdev, u64 cookie,
12202 struct ieee80211_channel *chan,
12203 unsigned int duration, gfp_t gfp)
12205 struct sk_buff *msg;
12208 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12212 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12218 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12219 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12220 wdev->netdev->ifindex)) ||
12221 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12222 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
12223 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12224 NL80211_CHAN_NO_HT) ||
12225 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12226 goto nla_put_failure;
12228 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12229 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12230 goto nla_put_failure;
12232 genlmsg_end(msg, hdr);
12234 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12235 NL80211_MCGRP_MLME, gfp);
12239 genlmsg_cancel(msg, hdr);
12243 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12244 struct ieee80211_channel *chan,
12245 unsigned int duration, gfp_t gfp)
12247 struct wiphy *wiphy = wdev->wiphy;
12248 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12250 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
12251 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
12252 rdev, wdev, cookie, chan,
12255 EXPORT_SYMBOL(cfg80211_ready_on_channel);
12257 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12258 struct ieee80211_channel *chan,
12261 struct wiphy *wiphy = wdev->wiphy;
12262 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12264 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
12265 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12266 rdev, wdev, cookie, chan, 0, gfp);
12268 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
12270 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12271 struct station_info *sinfo, gfp_t gfp)
12273 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12274 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12275 struct sk_buff *msg;
12277 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12279 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12283 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
12284 rdev, dev, mac_addr, sinfo) < 0) {
12289 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12290 NL80211_MCGRP_MLME, gfp);
12292 EXPORT_SYMBOL(cfg80211_new_sta);
12294 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12295 struct station_info *sinfo, gfp_t gfp)
12297 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12298 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12299 struct sk_buff *msg;
12300 struct station_info empty_sinfo = {};
12303 sinfo = &empty_sinfo;
12305 trace_cfg80211_del_sta(dev, mac_addr);
12307 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12311 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
12312 rdev, dev, mac_addr, sinfo) < 0) {
12317 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12318 NL80211_MCGRP_MLME, gfp);
12320 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
12322 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12323 enum nl80211_connect_failed_reason reason,
12326 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12327 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12328 struct sk_buff *msg;
12331 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12335 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12341 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12342 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12343 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12344 goto nla_put_failure;
12346 genlmsg_end(msg, hdr);
12348 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12349 NL80211_MCGRP_MLME, gfp);
12353 genlmsg_cancel(msg, hdr);
12356 EXPORT_SYMBOL(cfg80211_conn_failed);
12358 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12359 const u8 *addr, gfp_t gfp)
12361 struct wireless_dev *wdev = dev->ieee80211_ptr;
12362 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12363 struct sk_buff *msg;
12365 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
12370 msg = nlmsg_new(100, gfp);
12374 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12380 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12381 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12382 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12383 goto nla_put_failure;
12385 genlmsg_end(msg, hdr);
12386 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12390 genlmsg_cancel(msg, hdr);
12395 bool cfg80211_rx_spurious_frame(struct net_device *dev,
12396 const u8 *addr, gfp_t gfp)
12398 struct wireless_dev *wdev = dev->ieee80211_ptr;
12401 trace_cfg80211_rx_spurious_frame(dev, addr);
12403 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12404 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12405 trace_cfg80211_return_bool(false);
12408 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12410 trace_cfg80211_return_bool(ret);
12413 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
12415 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12416 const u8 *addr, gfp_t gfp)
12418 struct wireless_dev *wdev = dev->ieee80211_ptr;
12421 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12423 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12424 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12425 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12426 trace_cfg80211_return_bool(false);
12429 ret = __nl80211_unexpected_frame(dev,
12430 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12432 trace_cfg80211_return_bool(ret);
12435 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12437 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12438 struct wireless_dev *wdev, u32 nlportid,
12439 int freq, int sig_dbm,
12440 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12442 struct net_device *netdev = wdev->netdev;
12443 struct sk_buff *msg;
12446 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12450 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12456 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12457 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12458 netdev->ifindex)) ||
12459 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12460 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12462 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12463 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12465 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12466 goto nla_put_failure;
12468 genlmsg_end(msg, hdr);
12470 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12473 genlmsg_cancel(msg, hdr);
12478 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12479 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12481 struct wiphy *wiphy = wdev->wiphy;
12482 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12483 struct net_device *netdev = wdev->netdev;
12484 struct sk_buff *msg;
12487 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12489 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12493 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12499 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12500 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12501 netdev->ifindex)) ||
12502 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12503 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12504 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12505 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12506 goto nla_put_failure;
12508 genlmsg_end(msg, hdr);
12510 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12511 NL80211_MCGRP_MLME, gfp);
12515 genlmsg_cancel(msg, hdr);
12518 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12520 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12521 const char *mac, gfp_t gfp)
12523 struct wireless_dev *wdev = dev->ieee80211_ptr;
12524 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12525 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12531 cb = (void **)msg->cb;
12533 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12539 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12540 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12541 goto nla_put_failure;
12543 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12544 goto nla_put_failure;
12546 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12548 goto nla_put_failure;
12558 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12560 void **cb = (void **)msg->cb;
12561 struct cfg80211_registered_device *rdev = cb[2];
12563 nla_nest_end(msg, cb[1]);
12564 genlmsg_end(msg, cb[0]);
12566 memset(msg->cb, 0, sizeof(msg->cb));
12568 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12569 NL80211_MCGRP_MLME, gfp);
12572 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12573 enum nl80211_cqm_rssi_threshold_event rssi_event,
12576 struct sk_buff *msg;
12578 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12580 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12581 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12584 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12588 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12590 goto nla_put_failure;
12592 cfg80211_send_cqm(msg, gfp);
12599 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12601 void cfg80211_cqm_txe_notify(struct net_device *dev,
12602 const u8 *peer, u32 num_packets,
12603 u32 rate, u32 intvl, gfp_t gfp)
12605 struct sk_buff *msg;
12607 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12611 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12612 goto nla_put_failure;
12614 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12615 goto nla_put_failure;
12617 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12618 goto nla_put_failure;
12620 cfg80211_send_cqm(msg, gfp);
12626 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12628 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12629 const u8 *peer, u32 num_packets, gfp_t gfp)
12631 struct sk_buff *msg;
12633 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12635 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12639 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12640 goto nla_put_failure;
12642 cfg80211_send_cqm(msg, gfp);
12648 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12650 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12652 struct sk_buff *msg;
12654 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12658 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12659 goto nla_put_failure;
12661 cfg80211_send_cqm(msg, gfp);
12667 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12669 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12670 struct net_device *netdev, const u8 *bssid,
12671 const u8 *replay_ctr, gfp_t gfp)
12673 struct sk_buff *msg;
12674 struct nlattr *rekey_attr;
12677 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12681 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12687 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12688 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12689 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12690 goto nla_put_failure;
12692 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12694 goto nla_put_failure;
12696 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12697 NL80211_REPLAY_CTR_LEN, replay_ctr))
12698 goto nla_put_failure;
12700 nla_nest_end(msg, rekey_attr);
12702 genlmsg_end(msg, hdr);
12704 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12705 NL80211_MCGRP_MLME, gfp);
12709 genlmsg_cancel(msg, hdr);
12713 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12714 const u8 *replay_ctr, gfp_t gfp)
12716 struct wireless_dev *wdev = dev->ieee80211_ptr;
12717 struct wiphy *wiphy = wdev->wiphy;
12718 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12720 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12721 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12723 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12726 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12727 struct net_device *netdev, int index,
12728 const u8 *bssid, bool preauth, gfp_t gfp)
12730 struct sk_buff *msg;
12731 struct nlattr *attr;
12734 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12738 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12744 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12745 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12746 goto nla_put_failure;
12748 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12750 goto nla_put_failure;
12752 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12753 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12755 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12756 goto nla_put_failure;
12758 nla_nest_end(msg, attr);
12760 genlmsg_end(msg, hdr);
12762 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12763 NL80211_MCGRP_MLME, gfp);
12767 genlmsg_cancel(msg, hdr);
12771 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12772 const u8 *bssid, bool preauth, gfp_t gfp)
12774 struct wireless_dev *wdev = dev->ieee80211_ptr;
12775 struct wiphy *wiphy = wdev->wiphy;
12776 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12778 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12779 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12781 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12783 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12784 struct net_device *netdev,
12785 struct cfg80211_chan_def *chandef,
12787 enum nl80211_commands notif,
12790 struct sk_buff *msg;
12793 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12797 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12803 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12804 goto nla_put_failure;
12806 if (nl80211_send_chandef(msg, chandef))
12807 goto nla_put_failure;
12809 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12810 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12811 goto nla_put_failure;
12813 genlmsg_end(msg, hdr);
12815 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12816 NL80211_MCGRP_MLME, gfp);
12820 genlmsg_cancel(msg, hdr);
12824 void cfg80211_ch_switch_notify(struct net_device *dev,
12825 struct cfg80211_chan_def *chandef)
12827 struct wireless_dev *wdev = dev->ieee80211_ptr;
12828 struct wiphy *wiphy = wdev->wiphy;
12829 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12831 ASSERT_WDEV_LOCK(wdev);
12833 trace_cfg80211_ch_switch_notify(dev, chandef);
12835 wdev->chandef = *chandef;
12836 wdev->preset_chandef = *chandef;
12837 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12838 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12840 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12842 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12843 struct cfg80211_chan_def *chandef,
12846 struct wireless_dev *wdev = dev->ieee80211_ptr;
12847 struct wiphy *wiphy = wdev->wiphy;
12848 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12850 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12852 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12853 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12855 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12858 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12859 const struct cfg80211_chan_def *chandef,
12860 enum nl80211_radar_event event,
12861 struct net_device *netdev, gfp_t gfp)
12863 struct sk_buff *msg;
12866 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12870 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12876 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12877 goto nla_put_failure;
12879 /* NOP and radar events don't need a netdev parameter */
12881 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12883 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12884 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12885 goto nla_put_failure;
12888 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12889 goto nla_put_failure;
12891 if (nl80211_send_chandef(msg, chandef))
12892 goto nla_put_failure;
12894 genlmsg_end(msg, hdr);
12896 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12897 NL80211_MCGRP_MLME, gfp);
12901 genlmsg_cancel(msg, hdr);
12905 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12906 u64 cookie, bool acked, gfp_t gfp)
12908 struct wireless_dev *wdev = dev->ieee80211_ptr;
12909 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12910 struct sk_buff *msg;
12913 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12915 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12920 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12926 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12927 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12928 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12929 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12930 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12931 goto nla_put_failure;
12933 genlmsg_end(msg, hdr);
12935 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12936 NL80211_MCGRP_MLME, gfp);
12940 genlmsg_cancel(msg, hdr);
12943 EXPORT_SYMBOL(cfg80211_probe_status);
12945 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12946 const u8 *frame, size_t len,
12947 int freq, int sig_dbm)
12949 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12950 struct sk_buff *msg;
12952 struct cfg80211_beacon_registration *reg;
12954 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12956 spin_lock_bh(&rdev->beacon_registrations_lock);
12957 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12958 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12960 spin_unlock_bh(&rdev->beacon_registrations_lock);
12964 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12966 goto nla_put_failure;
12968 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12970 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12972 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12973 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12974 goto nla_put_failure;
12976 genlmsg_end(msg, hdr);
12978 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12980 spin_unlock_bh(&rdev->beacon_registrations_lock);
12984 spin_unlock_bh(&rdev->beacon_registrations_lock);
12986 genlmsg_cancel(msg, hdr);
12989 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12992 static int cfg80211_net_detect_results(struct sk_buff *msg,
12993 struct cfg80211_wowlan_wakeup *wakeup)
12995 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12996 struct nlattr *nl_results, *nl_match, *nl_freqs;
12999 nl_results = nla_nest_start(
13000 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
13004 for (i = 0; i < nd->n_matches; i++) {
13005 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
13007 nl_match = nla_nest_start(msg, i);
13011 /* The SSID attribute is optional in nl80211, but for
13012 * simplicity reasons it's always present in the
13013 * cfg80211 structure. If a driver can't pass the
13014 * SSID, that needs to be changed. A zero length SSID
13015 * is still a valid SSID (wildcard), so it cannot be
13016 * used for this purpose.
13018 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13019 match->ssid.ssid)) {
13020 nla_nest_cancel(msg, nl_match);
13024 if (match->n_channels) {
13025 nl_freqs = nla_nest_start(
13026 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13028 nla_nest_cancel(msg, nl_match);
13032 for (j = 0; j < match->n_channels; j++) {
13033 if (nla_put_u32(msg, j, match->channels[j])) {
13034 nla_nest_cancel(msg, nl_freqs);
13035 nla_nest_cancel(msg, nl_match);
13040 nla_nest_end(msg, nl_freqs);
13043 nla_nest_end(msg, nl_match);
13047 nla_nest_end(msg, nl_results);
13051 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13052 struct cfg80211_wowlan_wakeup *wakeup,
13055 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13056 struct sk_buff *msg;
13060 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13063 size += wakeup->packet_present_len;
13065 msg = nlmsg_new(size, gfp);
13069 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13073 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13074 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13077 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13078 wdev->netdev->ifindex))
13082 struct nlattr *reasons;
13084 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
13088 if (wakeup->disconnect &&
13089 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13091 if (wakeup->magic_pkt &&
13092 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13094 if (wakeup->gtk_rekey_failure &&
13095 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13097 if (wakeup->eap_identity_req &&
13098 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13100 if (wakeup->four_way_handshake &&
13101 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13103 if (wakeup->rfkill_release &&
13104 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13107 if (wakeup->pattern_idx >= 0 &&
13108 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13109 wakeup->pattern_idx))
13112 if (wakeup->tcp_match &&
13113 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13116 if (wakeup->tcp_connlost &&
13117 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13120 if (wakeup->tcp_nomoretokens &&
13122 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13125 if (wakeup->packet) {
13126 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13127 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13129 if (!wakeup->packet_80211) {
13131 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13133 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13136 if (wakeup->packet_len &&
13137 nla_put_u32(msg, len_attr, wakeup->packet_len))
13140 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13145 if (wakeup->net_detect &&
13146 cfg80211_net_detect_results(msg, wakeup))
13149 nla_nest_end(msg, reasons);
13152 genlmsg_end(msg, hdr);
13154 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13155 NL80211_MCGRP_MLME, gfp);
13161 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13164 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13165 enum nl80211_tdls_operation oper,
13166 u16 reason_code, gfp_t gfp)
13168 struct wireless_dev *wdev = dev->ieee80211_ptr;
13169 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13170 struct sk_buff *msg;
13173 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13176 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13180 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13186 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13187 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13188 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13189 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13190 (reason_code > 0 &&
13191 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13192 goto nla_put_failure;
13194 genlmsg_end(msg, hdr);
13196 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13197 NL80211_MCGRP_MLME, gfp);
13201 genlmsg_cancel(msg, hdr);
13204 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13206 static int nl80211_netlink_notify(struct notifier_block * nb,
13207 unsigned long state,
13210 struct netlink_notify *notify = _notify;
13211 struct cfg80211_registered_device *rdev;
13212 struct wireless_dev *wdev;
13213 struct cfg80211_beacon_registration *reg, *tmp;
13215 if (state != NETLINK_URELEASE)
13216 return NOTIFY_DONE;
13220 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
13221 bool schedule_destroy_work = false;
13222 bool schedule_scan_stop = false;
13223 struct cfg80211_sched_scan_request *sched_scan_req =
13224 rcu_dereference(rdev->sched_scan_req);
13226 if (sched_scan_req && notify->portid &&
13227 sched_scan_req->owner_nlportid == notify->portid)
13228 schedule_scan_stop = true;
13230 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
13231 cfg80211_mlme_unregister_socket(wdev, notify->portid);
13233 if (wdev->owner_nlportid == notify->portid)
13234 schedule_destroy_work = true;
13237 spin_lock_bh(&rdev->beacon_registrations_lock);
13238 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13240 if (reg->nlportid == notify->portid) {
13241 list_del(®->list);
13246 spin_unlock_bh(&rdev->beacon_registrations_lock);
13248 if (schedule_destroy_work) {
13249 struct cfg80211_iface_destroy *destroy;
13251 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13253 destroy->nlportid = notify->portid;
13254 spin_lock(&rdev->destroy_list_lock);
13255 list_add(&destroy->list, &rdev->destroy_list);
13256 spin_unlock(&rdev->destroy_list_lock);
13257 schedule_work(&rdev->destroy_work);
13259 } else if (schedule_scan_stop) {
13260 sched_scan_req->owner_nlportid = 0;
13262 if (rdev->ops->sched_scan_stop &&
13263 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13264 schedule_work(&rdev->sched_scan_stop_wk);
13271 * It is possible that the user space process that is controlling the
13272 * indoor setting disappeared, so notify the regulatory core.
13274 regulatory_netlink_notify(notify->portid);
13278 static struct notifier_block nl80211_netlink_notifier = {
13279 .notifier_call = nl80211_netlink_notify,
13282 void cfg80211_ft_event(struct net_device *netdev,
13283 struct cfg80211_ft_event_params *ft_event)
13285 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
13286 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13287 struct sk_buff *msg;
13290 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13292 if (!ft_event->target_ap)
13295 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13299 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
13303 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13304 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13305 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13308 if (ft_event->ies &&
13309 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13311 if (ft_event->ric_ies &&
13312 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13313 ft_event->ric_ies))
13316 genlmsg_end(msg, hdr);
13318 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13319 NL80211_MCGRP_MLME, GFP_KERNEL);
13324 EXPORT_SYMBOL(cfg80211_ft_event);
13326 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13328 struct cfg80211_registered_device *rdev;
13329 struct sk_buff *msg;
13333 rdev = wiphy_to_rdev(wdev->wiphy);
13334 if (!rdev->crit_proto_nlportid)
13337 nlportid = rdev->crit_proto_nlportid;
13338 rdev->crit_proto_nlportid = 0;
13340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13344 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13346 goto nla_put_failure;
13348 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13349 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13350 goto nla_put_failure;
13352 genlmsg_end(msg, hdr);
13354 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13359 genlmsg_cancel(msg, hdr);
13363 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13365 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13367 struct wiphy *wiphy = wdev->wiphy;
13368 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13369 struct sk_buff *msg;
13372 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13376 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13380 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13381 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13382 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13385 genlmsg_end(msg, hdr);
13387 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13388 NL80211_MCGRP_MLME, GFP_KERNEL);
13394 /* initialisation/exit functions */
13396 int nl80211_init(void)
13400 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13405 err = netlink_register_notifier(&nl80211_netlink_notifier);
13411 genl_unregister_family(&nl80211_fam);
13415 void nl80211_exit(void)
13417 netlink_unregister_notifier(&nl80211_netlink_notifier);
13418 genl_unregister_family(&nl80211_fam);