2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
6 * Copyright 2015 Intel Deutschland GmbH
10 #include <linux/module.h>
11 #include <linux/err.h>
12 #include <linux/slab.h>
13 #include <linux/list.h>
14 #include <linux/if_ether.h>
15 #include <linux/ieee80211.h>
16 #include <linux/nl80211.h>
17 #include <linux/rtnetlink.h>
18 #include <linux/netlink.h>
19 #include <linux/etherdevice.h>
20 #include <net/net_namespace.h>
21 #include <net/genetlink.h>
22 #include <net/cfg80211.h>
24 #include <net/inet_connection_sock.h>
30 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
31 struct genl_info *info,
32 struct cfg80211_crypto_settings *settings,
35 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
36 struct genl_info *info);
37 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
38 struct genl_info *info);
40 /* the netlink family */
41 static struct genl_family nl80211_fam = {
42 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
43 .name = NL80211_GENL_NAME, /* have users key off the name instead */
44 .hdrsize = 0, /* no private header */
45 .version = 1, /* no particular meaning now */
46 .maxattr = NL80211_ATTR_MAX,
48 .pre_doit = nl80211_pre_doit,
49 .post_doit = nl80211_post_doit,
52 /* multicast groups */
53 enum nl80211_multicast_groups {
56 NL80211_MCGRP_REGULATORY,
59 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
62 static const struct genl_multicast_group nl80211_mcgrps[] = {
63 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
64 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
65 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
66 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
67 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
68 #ifdef CONFIG_NL80211_TESTMODE
69 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
73 /* returns ERR_PTR values */
74 static struct wireless_dev *
75 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
77 struct cfg80211_registered_device *rdev;
78 struct wireless_dev *result = NULL;
79 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
80 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
87 if (!have_ifidx && !have_wdev_id)
88 return ERR_PTR(-EINVAL);
91 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
93 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
94 wiphy_idx = wdev_id >> 32;
97 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
98 struct wireless_dev *wdev;
100 if (wiphy_net(&rdev->wiphy) != netns)
103 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
106 list_for_each_entry(wdev, &rdev->wdev_list, list) {
107 if (have_ifidx && wdev->netdev &&
108 wdev->netdev->ifindex == ifidx) {
112 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
124 return ERR_PTR(-ENODEV);
127 static struct cfg80211_registered_device *
128 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
130 struct cfg80211_registered_device *rdev = NULL, *tmp;
131 struct net_device *netdev;
135 if (!attrs[NL80211_ATTR_WIPHY] &&
136 !attrs[NL80211_ATTR_IFINDEX] &&
137 !attrs[NL80211_ATTR_WDEV])
138 return ERR_PTR(-EINVAL);
140 if (attrs[NL80211_ATTR_WIPHY])
141 rdev = cfg80211_rdev_by_wiphy_idx(
142 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
144 if (attrs[NL80211_ATTR_WDEV]) {
145 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
146 struct wireless_dev *wdev;
149 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
151 /* make sure wdev exists */
152 list_for_each_entry(wdev, &tmp->wdev_list, list) {
153 if (wdev->identifier != (u32)wdev_id)
162 if (rdev && tmp != rdev)
163 return ERR_PTR(-EINVAL);
168 if (attrs[NL80211_ATTR_IFINDEX]) {
169 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
170 netdev = __dev_get_by_index(netns, ifindex);
172 if (netdev->ieee80211_ptr)
174 netdev->ieee80211_ptr->wiphy);
178 /* not wireless device -- return error */
180 return ERR_PTR(-EINVAL);
182 /* mismatch -- return error */
183 if (rdev && tmp != rdev)
184 return ERR_PTR(-EINVAL);
191 return ERR_PTR(-ENODEV);
193 if (netns != wiphy_net(&rdev->wiphy))
194 return ERR_PTR(-ENODEV);
200 * This function returns a pointer to the driver
201 * that the genl_info item that is passed refers to.
203 * The result of this can be a PTR_ERR and hence must
204 * be checked with IS_ERR() for errors.
206 static struct cfg80211_registered_device *
207 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
209 return __cfg80211_rdev_from_attrs(netns, info->attrs);
212 /* policy for the attributes */
213 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
214 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
215 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
217 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
219 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
220 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
221 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
223 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
225 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
227 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
229 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
230 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
232 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
234 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
236 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
237 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
239 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
240 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
241 .len = WLAN_MAX_KEY_LEN },
242 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
243 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
244 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
245 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
246 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
248 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
249 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
250 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
251 .len = IEEE80211_MAX_DATA_LEN },
252 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
253 .len = IEEE80211_MAX_DATA_LEN },
254 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
255 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
256 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
257 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
258 .len = NL80211_MAX_SUPP_RATES },
259 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
260 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
261 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
262 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
263 .len = IEEE80211_MAX_MESH_ID_LEN },
264 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
266 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
267 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
269 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
272 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
273 .len = NL80211_MAX_SUPP_RATES },
274 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
276 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
277 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
279 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
281 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
282 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
283 .len = IEEE80211_MAX_DATA_LEN },
284 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
285 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
287 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
288 .len = IEEE80211_MAX_SSID_LEN },
289 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
290 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
291 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
292 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
293 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
294 [NL80211_ATTR_STA_FLAGS2] = {
295 .len = sizeof(struct nl80211_sta_flag_update),
297 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
298 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
299 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
300 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
301 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
302 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
303 [NL80211_ATTR_PID] = { .type = NLA_U32 },
304 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
305 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
306 .len = WLAN_PMKID_LEN },
307 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
308 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
309 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
310 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
311 .len = IEEE80211_MAX_DATA_LEN },
312 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
313 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
314 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
315 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
316 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
317 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
318 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
319 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
320 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
321 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
322 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
323 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
324 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
325 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
326 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
327 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
328 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
329 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
330 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
331 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
332 .len = IEEE80211_MAX_DATA_LEN },
333 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
334 .len = IEEE80211_MAX_DATA_LEN },
335 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
336 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
337 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
338 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
341 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
343 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
344 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
345 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
346 .len = IEEE80211_MAX_DATA_LEN },
347 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
348 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
349 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
350 .len = NL80211_HT_CAPABILITY_LEN
352 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
353 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
354 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
355 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
356 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
357 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
358 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
359 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
360 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
361 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
362 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
363 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
364 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
365 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
366 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
367 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
368 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
369 .len = NL80211_VHT_CAPABILITY_LEN,
371 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
372 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
373 .len = IEEE80211_MAX_DATA_LEN },
374 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
375 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
376 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
377 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
378 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
379 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
381 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
382 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
383 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
384 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
386 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
387 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
388 .len = IEEE80211_QOS_MAP_LEN_MAX },
389 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
390 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
391 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
392 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
393 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
394 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
395 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
396 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
397 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
398 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
399 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
400 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
401 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
402 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
403 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
406 /* policy for the key attributes */
407 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
408 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
409 [NL80211_KEY_IDX] = { .type = NLA_U8 },
410 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
411 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
412 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
413 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
414 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
415 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
418 /* policy for the key default flags */
419 static const struct nla_policy
420 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
421 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
422 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
425 /* policy for WoWLAN attributes */
426 static const struct nla_policy
427 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
428 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
431 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
432 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
436 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
437 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
440 static const struct nla_policy
441 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
442 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
443 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
444 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
445 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
446 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
448 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
449 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
451 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
452 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
454 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
455 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
456 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
459 /* policy for coalesce rule attributes */
460 static const struct nla_policy
461 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
462 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
463 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
464 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
467 /* policy for GTK rekey offload attributes */
468 static const struct nla_policy
469 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
470 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
471 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
472 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
475 static const struct nla_policy
476 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
477 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
478 .len = IEEE80211_MAX_SSID_LEN },
479 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
482 static const struct nla_policy
483 nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
484 [NL80211_SCHED_SCAN_PLAN_INTERVAL] = { .type = NLA_U32 },
485 [NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
488 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
489 struct netlink_callback *cb,
490 struct cfg80211_registered_device **rdev,
491 struct wireless_dev **wdev)
498 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
499 nl80211_fam.attrbuf, nl80211_fam.maxattr,
504 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
505 nl80211_fam.attrbuf);
507 err = PTR_ERR(*wdev);
510 *rdev = wiphy_to_rdev((*wdev)->wiphy);
511 /* 0 is the first index - add 1 to parse only once */
512 cb->args[0] = (*rdev)->wiphy_idx + 1;
513 cb->args[1] = (*wdev)->identifier;
515 /* subtract the 1 again here */
516 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
517 struct wireless_dev *tmp;
523 *rdev = wiphy_to_rdev(wiphy);
526 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
527 if (tmp->identifier == cb->args[1]) {
545 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
551 static bool is_valid_ie_attr(const struct nlattr *attr)
559 pos = nla_data(attr);
580 /* message building helper */
581 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
584 /* since there is no private header just add the generic one */
585 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
588 static int nl80211_msg_put_channel(struct sk_buff *msg,
589 struct ieee80211_channel *chan,
592 /* Some channels must be completely excluded from the
593 * list to protect old user-space tools from breaking
595 if (!large && chan->flags &
596 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
599 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
601 goto nla_put_failure;
603 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
604 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
605 goto nla_put_failure;
606 if (chan->flags & IEEE80211_CHAN_NO_IR) {
607 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
608 goto nla_put_failure;
609 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
610 goto nla_put_failure;
612 if (chan->flags & IEEE80211_CHAN_RADAR) {
613 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
614 goto nla_put_failure;
618 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
620 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
622 goto nla_put_failure;
623 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
625 goto nla_put_failure;
627 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
629 goto nla_put_failure;
634 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
635 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
636 goto nla_put_failure;
637 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
638 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
639 goto nla_put_failure;
640 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
641 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
642 goto nla_put_failure;
643 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
644 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
645 goto nla_put_failure;
646 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
647 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
648 goto nla_put_failure;
649 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
650 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
651 goto nla_put_failure;
652 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
653 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
654 goto nla_put_failure;
655 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
656 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
657 goto nla_put_failure;
660 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
661 DBM_TO_MBM(chan->max_power)))
662 goto nla_put_failure;
670 /* netlink command implementations */
677 bool def_uni, def_multi;
680 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
682 struct nlattr *tb[NL80211_KEY_MAX + 1];
683 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
688 k->def = !!tb[NL80211_KEY_DEFAULT];
689 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
698 if (tb[NL80211_KEY_IDX])
699 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
701 if (tb[NL80211_KEY_DATA]) {
702 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
703 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
706 if (tb[NL80211_KEY_SEQ]) {
707 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
708 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
711 if (tb[NL80211_KEY_CIPHER])
712 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
714 if (tb[NL80211_KEY_TYPE]) {
715 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
716 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
720 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
721 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
722 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
723 tb[NL80211_KEY_DEFAULT_TYPES],
724 nl80211_key_default_policy);
728 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
729 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
735 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
737 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
738 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
739 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
742 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
743 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
744 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
747 if (info->attrs[NL80211_ATTR_KEY_IDX])
748 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
750 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
751 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
753 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
754 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
763 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
764 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
765 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
769 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
770 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
771 int err = nla_parse_nested(
772 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
773 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
774 nl80211_key_default_policy);
778 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
779 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
785 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
789 memset(k, 0, sizeof(*k));
793 if (info->attrs[NL80211_ATTR_KEY])
794 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
796 err = nl80211_parse_key_old(info, k);
801 if (k->def && k->defmgmt)
805 if (k->def_uni || !k->def_multi)
811 if (k->idx < 4 || k->idx > 5)
814 if (k->idx < 0 || k->idx > 3)
817 if (k->idx < 0 || k->idx > 5)
825 static struct cfg80211_cached_keys *
826 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
827 struct nlattr *keys, bool *no_ht)
829 struct key_parse parse;
831 struct cfg80211_cached_keys *result;
832 int rem, err, def = 0;
834 result = kzalloc(sizeof(*result), GFP_KERNEL);
836 return ERR_PTR(-ENOMEM);
839 result->defmgmt = -1;
841 nla_for_each_nested(key, keys, rem) {
842 memset(&parse, 0, sizeof(parse));
845 err = nl80211_parse_key_new(key, &parse);
851 if (parse.idx < 0 || parse.idx > 4)
857 result->def = parse.idx;
858 if (!parse.def_uni || !parse.def_multi)
860 } else if (parse.defmgmt)
862 err = cfg80211_validate_key_settings(rdev, &parse.p,
863 parse.idx, false, NULL);
866 result->params[parse.idx].cipher = parse.p.cipher;
867 result->params[parse.idx].key_len = parse.p.key_len;
868 result->params[parse.idx].key = result->data[parse.idx];
869 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
871 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
872 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
884 static int nl80211_key_allowed(struct wireless_dev *wdev)
886 ASSERT_WDEV_LOCK(wdev);
888 switch (wdev->iftype) {
889 case NL80211_IFTYPE_AP:
890 case NL80211_IFTYPE_AP_VLAN:
891 case NL80211_IFTYPE_P2P_GO:
892 case NL80211_IFTYPE_MESH_POINT:
894 case NL80211_IFTYPE_ADHOC:
895 case NL80211_IFTYPE_STATION:
896 case NL80211_IFTYPE_P2P_CLIENT:
897 if (!wdev->current_bss)
900 case NL80211_IFTYPE_UNSPECIFIED:
901 case NL80211_IFTYPE_OCB:
902 case NL80211_IFTYPE_MONITOR:
903 case NL80211_IFTYPE_P2P_DEVICE:
904 case NL80211_IFTYPE_WDS:
905 case NUM_NL80211_IFTYPES:
912 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
915 struct ieee80211_channel *chan;
919 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
920 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
925 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
927 struct nlattr *nl_modes = nla_nest_start(msg, attr);
931 goto nla_put_failure;
935 if ((ifmodes & 1) && nla_put_flag(msg, i))
936 goto nla_put_failure;
941 nla_nest_end(msg, nl_modes);
948 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
952 struct nlattr *nl_combis;
955 nl_combis = nla_nest_start(msg,
956 NL80211_ATTR_INTERFACE_COMBINATIONS);
958 goto nla_put_failure;
960 for (i = 0; i < wiphy->n_iface_combinations; i++) {
961 const struct ieee80211_iface_combination *c;
962 struct nlattr *nl_combi, *nl_limits;
964 c = &wiphy->iface_combinations[i];
966 nl_combi = nla_nest_start(msg, i + 1);
968 goto nla_put_failure;
970 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
972 goto nla_put_failure;
974 for (j = 0; j < c->n_limits; j++) {
975 struct nlattr *nl_limit;
977 nl_limit = nla_nest_start(msg, j + 1);
979 goto nla_put_failure;
980 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
982 goto nla_put_failure;
983 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
985 goto nla_put_failure;
986 nla_nest_end(msg, nl_limit);
989 nla_nest_end(msg, nl_limits);
991 if (c->beacon_int_infra_match &&
992 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
993 goto nla_put_failure;
994 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
995 c->num_different_channels) ||
996 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
998 goto nla_put_failure;
1000 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
1001 c->radar_detect_widths) ||
1002 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
1003 c->radar_detect_regions)))
1004 goto nla_put_failure;
1006 nla_nest_end(msg, nl_combi);
1009 nla_nest_end(msg, nl_combis);
1017 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1018 struct sk_buff *msg)
1020 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1021 struct nlattr *nl_tcp;
1026 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1030 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1031 tcp->data_payload_max))
1034 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1035 tcp->data_payload_max))
1038 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1041 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1042 sizeof(*tcp->tok), tcp->tok))
1045 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1046 tcp->data_interval_max))
1049 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1050 tcp->wake_payload_max))
1053 nla_nest_end(msg, nl_tcp);
1057 static int nl80211_send_wowlan(struct sk_buff *msg,
1058 struct cfg80211_registered_device *rdev,
1061 struct nlattr *nl_wowlan;
1063 if (!rdev->wiphy.wowlan)
1066 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1070 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1071 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1072 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1073 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1074 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1075 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1076 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1077 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1078 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1079 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1080 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1081 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1082 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1083 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1084 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1085 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1088 if (rdev->wiphy.wowlan->n_patterns) {
1089 struct nl80211_pattern_support pat = {
1090 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1091 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1092 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1093 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1096 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1101 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1102 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1103 rdev->wiphy.wowlan->max_nd_match_sets))
1106 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1109 nla_nest_end(msg, nl_wowlan);
1115 static int nl80211_send_coalesce(struct sk_buff *msg,
1116 struct cfg80211_registered_device *rdev)
1118 struct nl80211_coalesce_rule_support rule;
1120 if (!rdev->wiphy.coalesce)
1123 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1124 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1125 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1126 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1127 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1128 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1130 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1136 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1137 struct ieee80211_supported_band *sband)
1139 struct nlattr *nl_rates, *nl_rate;
1140 struct ieee80211_rate *rate;
1144 if (sband->ht_cap.ht_supported &&
1145 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1146 sizeof(sband->ht_cap.mcs),
1147 &sband->ht_cap.mcs) ||
1148 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1149 sband->ht_cap.cap) ||
1150 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1151 sband->ht_cap.ampdu_factor) ||
1152 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1153 sband->ht_cap.ampdu_density)))
1157 if (sband->vht_cap.vht_supported &&
1158 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1159 sizeof(sband->vht_cap.vht_mcs),
1160 &sband->vht_cap.vht_mcs) ||
1161 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1162 sband->vht_cap.cap)))
1166 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1170 for (i = 0; i < sband->n_bitrates; i++) {
1171 nl_rate = nla_nest_start(msg, i);
1175 rate = &sband->bitrates[i];
1176 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1179 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1181 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1184 nla_nest_end(msg, nl_rate);
1187 nla_nest_end(msg, nl_rates);
1193 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1194 const struct ieee80211_txrx_stypes *mgmt_stypes)
1197 struct nlattr *nl_ftypes, *nl_ifs;
1198 enum nl80211_iftype ift;
1204 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1208 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1209 nl_ftypes = nla_nest_start(msg, ift);
1213 stypes = mgmt_stypes[ift].tx;
1216 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1217 (i << 4) | IEEE80211_FTYPE_MGMT))
1222 nla_nest_end(msg, nl_ftypes);
1225 nla_nest_end(msg, nl_ifs);
1227 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1231 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1232 nl_ftypes = nla_nest_start(msg, ift);
1236 stypes = mgmt_stypes[ift].rx;
1239 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1240 (i << 4) | IEEE80211_FTYPE_MGMT))
1245 nla_nest_end(msg, nl_ftypes);
1247 nla_nest_end(msg, nl_ifs);
1252 struct nl80211_dump_wiphy_state {
1255 long split_start, band_start, chan_start;
1259 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1260 enum nl80211_commands cmd,
1261 struct sk_buff *msg, u32 portid, u32 seq,
1262 int flags, struct nl80211_dump_wiphy_state *state)
1265 struct nlattr *nl_bands, *nl_band;
1266 struct nlattr *nl_freqs, *nl_freq;
1267 struct nlattr *nl_cmds;
1268 enum ieee80211_band band;
1269 struct ieee80211_channel *chan;
1271 const struct ieee80211_txrx_stypes *mgmt_stypes =
1272 rdev->wiphy.mgmt_stypes;
1275 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1279 if (WARN_ON(!state))
1282 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1283 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1284 wiphy_name(&rdev->wiphy)) ||
1285 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1286 cfg80211_rdev_list_generation))
1287 goto nla_put_failure;
1289 if (cmd != NL80211_CMD_NEW_WIPHY)
1292 switch (state->split_start) {
1294 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1295 rdev->wiphy.retry_short) ||
1296 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1297 rdev->wiphy.retry_long) ||
1298 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1299 rdev->wiphy.frag_threshold) ||
1300 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1301 rdev->wiphy.rts_threshold) ||
1302 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1303 rdev->wiphy.coverage_class) ||
1304 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1305 rdev->wiphy.max_scan_ssids) ||
1306 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1307 rdev->wiphy.max_sched_scan_ssids) ||
1308 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1309 rdev->wiphy.max_scan_ie_len) ||
1310 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1311 rdev->wiphy.max_sched_scan_ie_len) ||
1312 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1313 rdev->wiphy.max_match_sets) ||
1314 nla_put_u32(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_PLANS,
1315 rdev->wiphy.max_sched_scan_plans) ||
1316 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_INTERVAL,
1317 rdev->wiphy.max_sched_scan_plan_interval) ||
1318 nla_put_u32(msg, NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
1319 rdev->wiphy.max_sched_scan_plan_iterations))
1320 goto nla_put_failure;
1322 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1323 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1324 goto nla_put_failure;
1325 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1326 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1327 goto nla_put_failure;
1328 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1329 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1330 goto nla_put_failure;
1331 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1332 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1333 goto nla_put_failure;
1334 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1335 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1336 goto nla_put_failure;
1337 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1338 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1339 goto nla_put_failure;
1340 state->split_start++;
1344 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1345 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1346 rdev->wiphy.cipher_suites))
1347 goto nla_put_failure;
1349 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1350 rdev->wiphy.max_num_pmkids))
1351 goto nla_put_failure;
1353 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1354 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1355 goto nla_put_failure;
1357 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1358 rdev->wiphy.available_antennas_tx) ||
1359 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1360 rdev->wiphy.available_antennas_rx))
1361 goto nla_put_failure;
1363 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1364 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1365 rdev->wiphy.probe_resp_offload))
1366 goto nla_put_failure;
1368 if ((rdev->wiphy.available_antennas_tx ||
1369 rdev->wiphy.available_antennas_rx) &&
1370 rdev->ops->get_antenna) {
1371 u32 tx_ant = 0, rx_ant = 0;
1373 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1375 if (nla_put_u32(msg,
1376 NL80211_ATTR_WIPHY_ANTENNA_TX,
1379 NL80211_ATTR_WIPHY_ANTENNA_RX,
1381 goto nla_put_failure;
1385 state->split_start++;
1389 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1390 rdev->wiphy.interface_modes))
1391 goto nla_put_failure;
1392 state->split_start++;
1396 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1398 goto nla_put_failure;
1400 for (band = state->band_start;
1401 band < IEEE80211_NUM_BANDS; band++) {
1402 struct ieee80211_supported_band *sband;
1404 sband = rdev->wiphy.bands[band];
1409 nl_band = nla_nest_start(msg, band);
1411 goto nla_put_failure;
1413 switch (state->chan_start) {
1415 if (nl80211_send_band_rateinfo(msg, sband))
1416 goto nla_put_failure;
1417 state->chan_start++;
1421 /* add frequencies */
1422 nl_freqs = nla_nest_start(
1423 msg, NL80211_BAND_ATTR_FREQS);
1425 goto nla_put_failure;
1427 for (i = state->chan_start - 1;
1428 i < sband->n_channels;
1430 nl_freq = nla_nest_start(msg, i);
1432 goto nla_put_failure;
1434 chan = &sband->channels[i];
1436 if (nl80211_msg_put_channel(
1439 goto nla_put_failure;
1441 nla_nest_end(msg, nl_freq);
1445 if (i < sband->n_channels)
1446 state->chan_start = i + 2;
1448 state->chan_start = 0;
1449 nla_nest_end(msg, nl_freqs);
1452 nla_nest_end(msg, nl_band);
1455 /* start again here */
1456 if (state->chan_start)
1461 nla_nest_end(msg, nl_bands);
1463 if (band < IEEE80211_NUM_BANDS)
1464 state->band_start = band + 1;
1466 state->band_start = 0;
1468 /* if bands & channels are done, continue outside */
1469 if (state->band_start == 0 && state->chan_start == 0)
1470 state->split_start++;
1474 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1476 goto nla_put_failure;
1479 #define CMD(op, n) \
1481 if (rdev->ops->op) { \
1483 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1484 goto nla_put_failure; \
1488 CMD(add_virtual_intf, NEW_INTERFACE);
1489 CMD(change_virtual_intf, SET_INTERFACE);
1490 CMD(add_key, NEW_KEY);
1491 CMD(start_ap, START_AP);
1492 CMD(add_station, NEW_STATION);
1493 CMD(add_mpath, NEW_MPATH);
1494 CMD(update_mesh_config, SET_MESH_CONFIG);
1495 CMD(change_bss, SET_BSS);
1496 CMD(auth, AUTHENTICATE);
1497 CMD(assoc, ASSOCIATE);
1498 CMD(deauth, DEAUTHENTICATE);
1499 CMD(disassoc, DISASSOCIATE);
1500 CMD(join_ibss, JOIN_IBSS);
1501 CMD(join_mesh, JOIN_MESH);
1502 CMD(set_pmksa, SET_PMKSA);
1503 CMD(del_pmksa, DEL_PMKSA);
1504 CMD(flush_pmksa, FLUSH_PMKSA);
1505 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1506 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1507 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1508 CMD(mgmt_tx, FRAME);
1509 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1510 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1512 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1513 goto nla_put_failure;
1515 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1516 rdev->ops->join_mesh) {
1518 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1519 goto nla_put_failure;
1521 CMD(set_wds_peer, SET_WDS_PEER);
1522 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1523 CMD(tdls_mgmt, TDLS_MGMT);
1524 CMD(tdls_oper, TDLS_OPER);
1526 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1527 CMD(sched_scan_start, START_SCHED_SCAN);
1528 CMD(probe_client, PROBE_CLIENT);
1529 CMD(set_noack_map, SET_NOACK_MAP);
1530 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1532 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1533 goto nla_put_failure;
1535 CMD(start_p2p_device, START_P2P_DEVICE);
1536 CMD(set_mcast_rate, SET_MCAST_RATE);
1537 #ifdef CONFIG_NL80211_TESTMODE
1538 CMD(testmode_cmd, TESTMODE);
1541 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1542 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1543 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1544 CMD(channel_switch, CHANNEL_SWITCH);
1545 CMD(set_qos_map, SET_QOS_MAP);
1546 if (rdev->wiphy.features &
1547 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1548 CMD(add_tx_ts, ADD_TX_TS);
1550 /* add into the if now */
1553 if (rdev->ops->connect || rdev->ops->auth) {
1555 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1556 goto nla_put_failure;
1559 if (rdev->ops->disconnect || rdev->ops->deauth) {
1561 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1562 goto nla_put_failure;
1565 nla_nest_end(msg, nl_cmds);
1566 state->split_start++;
1570 if (rdev->ops->remain_on_channel &&
1571 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1573 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1574 rdev->wiphy.max_remain_on_channel_duration))
1575 goto nla_put_failure;
1577 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1578 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1579 goto nla_put_failure;
1581 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1582 goto nla_put_failure;
1583 state->split_start++;
1588 if (nl80211_send_wowlan(msg, rdev, state->split))
1589 goto nla_put_failure;
1590 state->split_start++;
1594 state->split_start++;
1597 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1598 rdev->wiphy.software_iftypes))
1599 goto nla_put_failure;
1601 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1603 goto nla_put_failure;
1605 state->split_start++;
1609 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1610 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1611 rdev->wiphy.ap_sme_capa))
1612 goto nla_put_failure;
1614 features = rdev->wiphy.features;
1616 * We can only add the per-channel limit information if the
1617 * dump is split, otherwise it makes it too big. Therefore
1618 * only advertise it in that case.
1621 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1622 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1623 goto nla_put_failure;
1625 if (rdev->wiphy.ht_capa_mod_mask &&
1626 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1627 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1628 rdev->wiphy.ht_capa_mod_mask))
1629 goto nla_put_failure;
1631 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1632 rdev->wiphy.max_acl_mac_addrs &&
1633 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1634 rdev->wiphy.max_acl_mac_addrs))
1635 goto nla_put_failure;
1638 * Any information below this point is only available to
1639 * applications that can deal with it being split. This
1640 * helps ensure that newly added capabilities don't break
1641 * older tools by overrunning their buffers.
1643 * We still increment split_start so that in the split
1644 * case we'll continue with more data in the next round,
1645 * but break unconditionally so unsplit data stops here.
1647 state->split_start++;
1650 if (rdev->wiphy.extended_capabilities &&
1651 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1652 rdev->wiphy.extended_capabilities_len,
1653 rdev->wiphy.extended_capabilities) ||
1654 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1655 rdev->wiphy.extended_capabilities_len,
1656 rdev->wiphy.extended_capabilities_mask)))
1657 goto nla_put_failure;
1659 if (rdev->wiphy.vht_capa_mod_mask &&
1660 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1661 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1662 rdev->wiphy.vht_capa_mod_mask))
1663 goto nla_put_failure;
1665 state->split_start++;
1668 if (nl80211_send_coalesce(msg, rdev))
1669 goto nla_put_failure;
1671 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1672 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1673 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1674 goto nla_put_failure;
1676 if (rdev->wiphy.max_ap_assoc_sta &&
1677 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1678 rdev->wiphy.max_ap_assoc_sta))
1679 goto nla_put_failure;
1681 state->split_start++;
1684 if (rdev->wiphy.n_vendor_commands) {
1685 const struct nl80211_vendor_cmd_info *info;
1686 struct nlattr *nested;
1688 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1690 goto nla_put_failure;
1692 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1693 info = &rdev->wiphy.vendor_commands[i].info;
1694 if (nla_put(msg, i + 1, sizeof(*info), info))
1695 goto nla_put_failure;
1697 nla_nest_end(msg, nested);
1700 if (rdev->wiphy.n_vendor_events) {
1701 const struct nl80211_vendor_cmd_info *info;
1702 struct nlattr *nested;
1704 nested = nla_nest_start(msg,
1705 NL80211_ATTR_VENDOR_EVENTS);
1707 goto nla_put_failure;
1709 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1710 info = &rdev->wiphy.vendor_events[i];
1711 if (nla_put(msg, i + 1, sizeof(*info), info))
1712 goto nla_put_failure;
1714 nla_nest_end(msg, nested);
1716 state->split_start++;
1719 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1720 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1721 rdev->wiphy.max_num_csa_counters))
1722 goto nla_put_failure;
1724 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1725 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1726 goto nla_put_failure;
1728 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1729 sizeof(rdev->wiphy.ext_features),
1730 rdev->wiphy.ext_features))
1731 goto nla_put_failure;
1734 state->split_start = 0;
1738 genlmsg_end(msg, hdr);
1742 genlmsg_cancel(msg, hdr);
1746 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1747 struct netlink_callback *cb,
1748 struct nl80211_dump_wiphy_state *state)
1750 struct nlattr **tb = nl80211_fam.attrbuf;
1751 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1752 tb, nl80211_fam.maxattr, nl80211_policy);
1753 /* ignore parse errors for backward compatibility */
1757 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1758 if (tb[NL80211_ATTR_WIPHY])
1759 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1760 if (tb[NL80211_ATTR_WDEV])
1761 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1762 if (tb[NL80211_ATTR_IFINDEX]) {
1763 struct net_device *netdev;
1764 struct cfg80211_registered_device *rdev;
1765 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1767 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1770 if (netdev->ieee80211_ptr) {
1771 rdev = wiphy_to_rdev(
1772 netdev->ieee80211_ptr->wiphy);
1773 state->filter_wiphy = rdev->wiphy_idx;
1780 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1783 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1784 struct cfg80211_registered_device *rdev;
1788 state = kzalloc(sizeof(*state), GFP_KERNEL);
1793 state->filter_wiphy = -1;
1794 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1800 cb->args[0] = (long)state;
1803 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1804 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1806 if (++idx <= state->start)
1808 if (state->filter_wiphy != -1 &&
1809 state->filter_wiphy != rdev->wiphy_idx)
1811 /* attempt to fit multiple wiphy data chunks into the skb */
1813 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1815 NETLINK_CB(cb->skb).portid,
1817 NLM_F_MULTI, state);
1820 * If sending the wiphy data didn't fit (ENOBUFS
1821 * or EMSGSIZE returned), this SKB is still
1822 * empty (so it's not too big because another
1823 * wiphy dataset is already in the skb) and
1824 * we've not tried to adjust the dump allocation
1825 * yet ... then adjust the alloc size to be
1826 * bigger, and return 1 but with the empty skb.
1827 * This results in an empty message being RX'ed
1828 * in userspace, but that is ignored.
1830 * We can then retry with the larger buffer.
1832 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1833 !skb->len && !state->split &&
1834 cb->min_dump_alloc < 4096) {
1835 cb->min_dump_alloc = 4096;
1836 state->split_start = 0;
1843 } while (state->split_start > 0);
1853 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1855 kfree((void *)cb->args[0]);
1859 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1861 struct sk_buff *msg;
1862 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1863 struct nl80211_dump_wiphy_state state = {};
1865 msg = nlmsg_new(4096, GFP_KERNEL);
1869 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1870 info->snd_portid, info->snd_seq, 0,
1876 return genlmsg_reply(msg, info);
1879 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1880 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1881 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1882 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1883 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1884 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1887 static int parse_txq_params(struct nlattr *tb[],
1888 struct ieee80211_txq_params *txq_params)
1890 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1891 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1892 !tb[NL80211_TXQ_ATTR_AIFS])
1895 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1896 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1897 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1898 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1899 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1901 if (txq_params->ac >= NL80211_NUM_ACS)
1907 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1910 * You can only set the channel explicitly for WDS interfaces,
1911 * all others have their channel managed via their respective
1912 * "establish a connection" command (connect, join, ...)
1914 * For AP/GO and mesh mode, the channel can be set with the
1915 * channel userspace API, but is only stored and passed to the
1916 * low-level driver when the AP starts or the mesh is joined.
1917 * This is for backward compatibility, userspace can also give
1918 * the channel in the start-ap or join-mesh commands instead.
1920 * Monitors are special as they are normally slaved to
1921 * whatever else is going on, so they have their own special
1922 * operation to set the monitor channel if possible.
1925 wdev->iftype == NL80211_IFTYPE_AP ||
1926 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1927 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1928 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1931 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1932 struct genl_info *info,
1933 struct cfg80211_chan_def *chandef)
1937 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1940 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1942 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1943 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1944 chandef->center_freq1 = control_freq;
1945 chandef->center_freq2 = 0;
1947 /* Primary channel not allowed */
1948 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1951 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1952 enum nl80211_channel_type chantype;
1954 chantype = nla_get_u32(
1955 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1958 case NL80211_CHAN_NO_HT:
1959 case NL80211_CHAN_HT20:
1960 case NL80211_CHAN_HT40PLUS:
1961 case NL80211_CHAN_HT40MINUS:
1962 cfg80211_chandef_create(chandef, chandef->chan,
1968 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1970 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1971 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1972 chandef->center_freq1 =
1974 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1975 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1976 chandef->center_freq2 =
1978 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1981 if (!cfg80211_chandef_valid(chandef))
1984 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1985 IEEE80211_CHAN_DISABLED))
1988 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1989 chandef->width == NL80211_CHAN_WIDTH_10) &&
1990 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1996 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1997 struct net_device *dev,
1998 struct genl_info *info)
2000 struct cfg80211_chan_def chandef;
2002 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
2003 struct wireless_dev *wdev = NULL;
2006 wdev = dev->ieee80211_ptr;
2007 if (!nl80211_can_set_dev_channel(wdev))
2010 iftype = wdev->iftype;
2012 result = nl80211_parse_chandef(rdev, info, &chandef);
2017 case NL80211_IFTYPE_AP:
2018 case NL80211_IFTYPE_P2P_GO:
2019 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2024 if (wdev->beacon_interval) {
2025 if (!dev || !rdev->ops->set_ap_chanwidth ||
2026 !(rdev->wiphy.features &
2027 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2032 /* Only allow dynamic channel width changes */
2033 if (chandef.chan != wdev->preset_chandef.chan) {
2037 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2041 wdev->preset_chandef = chandef;
2044 case NL80211_IFTYPE_MESH_POINT:
2045 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2047 case NL80211_IFTYPE_MONITOR:
2048 result = cfg80211_set_monitor_channel(rdev, &chandef);
2057 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2059 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2060 struct net_device *netdev = info->user_ptr[1];
2062 return __nl80211_set_channel(rdev, netdev, info);
2065 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2067 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2068 struct net_device *dev = info->user_ptr[1];
2069 struct wireless_dev *wdev = dev->ieee80211_ptr;
2072 if (!info->attrs[NL80211_ATTR_MAC])
2075 if (netif_running(dev))
2078 if (!rdev->ops->set_wds_peer)
2081 if (wdev->iftype != NL80211_IFTYPE_WDS)
2084 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2085 return rdev_set_wds_peer(rdev, dev, bssid);
2089 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2091 struct cfg80211_registered_device *rdev;
2092 struct net_device *netdev = NULL;
2093 struct wireless_dev *wdev;
2094 int result = 0, rem_txq_params = 0;
2095 struct nlattr *nl_txq_params;
2097 u8 retry_short = 0, retry_long = 0;
2098 u32 frag_threshold = 0, rts_threshold = 0;
2099 u8 coverage_class = 0;
2104 * Try to find the wiphy and netdev. Normally this
2105 * function shouldn't need the netdev, but this is
2106 * done for backward compatibility -- previously
2107 * setting the channel was done per wiphy, but now
2108 * it is per netdev. Previous userland like hostapd
2109 * also passed a netdev to set_wiphy, so that it is
2110 * possible to let that go to the right netdev!
2113 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2114 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2116 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2117 if (netdev && netdev->ieee80211_ptr)
2118 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2124 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2127 return PTR_ERR(rdev);
2132 wdev = netdev->ieee80211_ptr;
2135 * end workaround code, by now the rdev is available
2136 * and locked, and wdev may or may not be NULL.
2139 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2140 result = cfg80211_dev_rename(
2141 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2146 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2147 struct ieee80211_txq_params txq_params;
2148 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2150 if (!rdev->ops->set_txq_params)
2156 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2157 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2160 if (!netif_running(netdev))
2163 nla_for_each_nested(nl_txq_params,
2164 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2166 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2167 nla_data(nl_txq_params),
2168 nla_len(nl_txq_params),
2172 result = parse_txq_params(tb, &txq_params);
2176 result = rdev_set_txq_params(rdev, netdev,
2183 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2184 result = __nl80211_set_channel(
2186 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2192 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2193 struct wireless_dev *txp_wdev = wdev;
2194 enum nl80211_tx_power_setting type;
2197 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2200 if (!rdev->ops->set_tx_power)
2203 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2204 type = nla_get_u32(info->attrs[idx]);
2206 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2207 (type != NL80211_TX_POWER_AUTOMATIC))
2210 if (type != NL80211_TX_POWER_AUTOMATIC) {
2211 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2212 mbm = nla_get_u32(info->attrs[idx]);
2215 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2220 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2221 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2223 if ((!rdev->wiphy.available_antennas_tx &&
2224 !rdev->wiphy.available_antennas_rx) ||
2225 !rdev->ops->set_antenna)
2228 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2229 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2231 /* reject antenna configurations which don't match the
2232 * available antenna masks, except for the "all" mask */
2233 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2234 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2237 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2238 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2240 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2247 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2248 retry_short = nla_get_u8(
2249 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2250 if (retry_short == 0)
2253 changed |= WIPHY_PARAM_RETRY_SHORT;
2256 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2257 retry_long = nla_get_u8(
2258 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2259 if (retry_long == 0)
2262 changed |= WIPHY_PARAM_RETRY_LONG;
2265 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2266 frag_threshold = nla_get_u32(
2267 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2268 if (frag_threshold < 256)
2271 if (frag_threshold != (u32) -1) {
2273 * Fragments (apart from the last one) are required to
2274 * have even length. Make the fragmentation code
2275 * simpler by stripping LSB should someone try to use
2276 * odd threshold value.
2278 frag_threshold &= ~0x1;
2280 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2283 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2284 rts_threshold = nla_get_u32(
2285 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2286 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2289 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2290 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2293 coverage_class = nla_get_u8(
2294 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2295 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2298 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2299 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2302 changed |= WIPHY_PARAM_DYN_ACK;
2306 u8 old_retry_short, old_retry_long;
2307 u32 old_frag_threshold, old_rts_threshold;
2308 u8 old_coverage_class;
2310 if (!rdev->ops->set_wiphy_params)
2313 old_retry_short = rdev->wiphy.retry_short;
2314 old_retry_long = rdev->wiphy.retry_long;
2315 old_frag_threshold = rdev->wiphy.frag_threshold;
2316 old_rts_threshold = rdev->wiphy.rts_threshold;
2317 old_coverage_class = rdev->wiphy.coverage_class;
2319 if (changed & WIPHY_PARAM_RETRY_SHORT)
2320 rdev->wiphy.retry_short = retry_short;
2321 if (changed & WIPHY_PARAM_RETRY_LONG)
2322 rdev->wiphy.retry_long = retry_long;
2323 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2324 rdev->wiphy.frag_threshold = frag_threshold;
2325 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2326 rdev->wiphy.rts_threshold = rts_threshold;
2327 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2328 rdev->wiphy.coverage_class = coverage_class;
2330 result = rdev_set_wiphy_params(rdev, changed);
2332 rdev->wiphy.retry_short = old_retry_short;
2333 rdev->wiphy.retry_long = old_retry_long;
2334 rdev->wiphy.frag_threshold = old_frag_threshold;
2335 rdev->wiphy.rts_threshold = old_rts_threshold;
2336 rdev->wiphy.coverage_class = old_coverage_class;
2343 static inline u64 wdev_id(struct wireless_dev *wdev)
2345 return (u64)wdev->identifier |
2346 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2349 static int nl80211_send_chandef(struct sk_buff *msg,
2350 const struct cfg80211_chan_def *chandef)
2352 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2355 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2356 chandef->chan->center_freq))
2358 switch (chandef->width) {
2359 case NL80211_CHAN_WIDTH_20_NOHT:
2360 case NL80211_CHAN_WIDTH_20:
2361 case NL80211_CHAN_WIDTH_40:
2362 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2363 cfg80211_get_chandef_type(chandef)))
2369 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2371 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2373 if (chandef->center_freq2 &&
2374 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2379 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2380 struct cfg80211_registered_device *rdev,
2381 struct wireless_dev *wdev, bool removal)
2383 struct net_device *dev = wdev->netdev;
2384 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2388 cmd = NL80211_CMD_DEL_INTERFACE;
2390 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2395 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2396 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2397 goto nla_put_failure;
2399 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2400 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2401 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2402 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2403 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2404 rdev->devlist_generation ^
2405 (cfg80211_rdev_list_generation << 2)))
2406 goto nla_put_failure;
2408 if (rdev->ops->get_channel) {
2410 struct cfg80211_chan_def chandef;
2412 ret = rdev_get_channel(rdev, wdev, &chandef);
2414 if (nl80211_send_chandef(msg, &chandef))
2415 goto nla_put_failure;
2419 if (rdev->ops->get_tx_power) {
2422 ret = rdev_get_tx_power(rdev, wdev, &dbm);
2424 nla_put_u32(msg, NL80211_ATTR_WIPHY_TX_POWER_LEVEL,
2426 goto nla_put_failure;
2429 if (wdev->ssid_len) {
2430 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2431 goto nla_put_failure;
2434 genlmsg_end(msg, hdr);
2438 genlmsg_cancel(msg, hdr);
2442 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2446 int wp_start = cb->args[0];
2447 int if_start = cb->args[1];
2448 struct cfg80211_registered_device *rdev;
2449 struct wireless_dev *wdev;
2452 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2453 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2455 if (wp_idx < wp_start) {
2461 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2462 if (if_idx < if_start) {
2466 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2467 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2468 rdev, wdev, false) < 0) {
2479 cb->args[0] = wp_idx;
2480 cb->args[1] = if_idx;
2485 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2487 struct sk_buff *msg;
2488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2489 struct wireless_dev *wdev = info->user_ptr[1];
2491 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2495 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2496 rdev, wdev, false) < 0) {
2501 return genlmsg_reply(msg, info);
2504 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2505 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2506 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2507 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2508 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2509 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2510 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2513 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2515 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2523 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2524 nla, mntr_flags_policy))
2527 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2529 *mntrflags |= (1<<flag);
2534 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2535 struct net_device *netdev, u8 use_4addr,
2536 enum nl80211_iftype iftype)
2539 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2545 case NL80211_IFTYPE_AP_VLAN:
2546 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2549 case NL80211_IFTYPE_STATION:
2550 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2560 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2563 struct vif_params params;
2565 enum nl80211_iftype otype, ntype;
2566 struct net_device *dev = info->user_ptr[1];
2567 u32 _flags, *flags = NULL;
2568 bool change = false;
2570 memset(¶ms, 0, sizeof(params));
2572 otype = ntype = dev->ieee80211_ptr->iftype;
2574 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2575 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2578 if (ntype > NL80211_IFTYPE_MAX)
2582 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2583 struct wireless_dev *wdev = dev->ieee80211_ptr;
2585 if (ntype != NL80211_IFTYPE_MESH_POINT)
2587 if (netif_running(dev))
2591 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2592 IEEE80211_MAX_MESH_ID_LEN);
2593 wdev->mesh_id_up_len =
2594 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2595 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2596 wdev->mesh_id_up_len);
2600 if (info->attrs[NL80211_ATTR_4ADDR]) {
2601 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2603 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2607 params.use_4addr = -1;
2610 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2611 if (ntype != NL80211_IFTYPE_MONITOR)
2613 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2622 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2623 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2627 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2631 if (!err && params.use_4addr != -1)
2632 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2637 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2639 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2640 struct vif_params params;
2641 struct wireless_dev *wdev;
2642 struct sk_buff *msg, *event;
2644 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2647 /* to avoid failing a new interface creation due to pending removal */
2648 cfg80211_destroy_ifaces(rdev);
2650 memset(¶ms, 0, sizeof(params));
2652 if (!info->attrs[NL80211_ATTR_IFNAME])
2655 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2656 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2657 if (type > NL80211_IFTYPE_MAX)
2661 if (!rdev->ops->add_virtual_intf ||
2662 !(rdev->wiphy.interface_modes & (1 << type)))
2665 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2666 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2667 info->attrs[NL80211_ATTR_MAC]) {
2668 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2670 if (!is_valid_ether_addr(params.macaddr))
2671 return -EADDRNOTAVAIL;
2674 if (info->attrs[NL80211_ATTR_4ADDR]) {
2675 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2676 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2681 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2682 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2685 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2686 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2689 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2693 wdev = rdev_add_virtual_intf(rdev,
2694 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2695 NET_NAME_USER, type, err ? NULL : &flags,
2697 if (WARN_ON(!wdev)) {
2700 } else if (IS_ERR(wdev)) {
2702 return PTR_ERR(wdev);
2705 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2706 wdev->owner_nlportid = info->snd_portid;
2709 case NL80211_IFTYPE_MESH_POINT:
2710 if (!info->attrs[NL80211_ATTR_MESH_ID])
2713 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2714 IEEE80211_MAX_MESH_ID_LEN);
2715 wdev->mesh_id_up_len =
2716 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2717 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2718 wdev->mesh_id_up_len);
2721 case NL80211_IFTYPE_P2P_DEVICE:
2723 * P2P Device doesn't have a netdev, so doesn't go
2724 * through the netdev notifier and must be added here
2726 mutex_init(&wdev->mtx);
2727 INIT_LIST_HEAD(&wdev->event_list);
2728 spin_lock_init(&wdev->event_lock);
2729 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2730 spin_lock_init(&wdev->mgmt_registrations_lock);
2732 wdev->identifier = ++rdev->wdev_id;
2733 list_add_rcu(&wdev->list, &rdev->wdev_list);
2734 rdev->devlist_generation++;
2740 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2741 rdev, wdev, false) < 0) {
2746 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2748 if (nl80211_send_iface(event, 0, 0, 0,
2749 rdev, wdev, false) < 0) {
2754 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2755 event, 0, NL80211_MCGRP_CONFIG,
2760 return genlmsg_reply(msg, info);
2763 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2765 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2766 struct wireless_dev *wdev = info->user_ptr[1];
2767 struct sk_buff *msg;
2770 if (!rdev->ops->del_virtual_intf)
2773 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2774 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2780 * If we remove a wireless device without a netdev then clear
2781 * user_ptr[1] so that nl80211_post_doit won't dereference it
2782 * to check if it needs to do dev_put(). Otherwise it crashes
2783 * since the wdev has been freed, unlike with a netdev where
2784 * we need the dev_put() for the netdev to really be freed.
2787 info->user_ptr[1] = NULL;
2789 status = rdev_del_virtual_intf(rdev, wdev);
2790 if (status >= 0 && msg)
2791 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2792 msg, 0, NL80211_MCGRP_CONFIG,
2800 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2802 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2803 struct net_device *dev = info->user_ptr[1];
2806 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2809 if (!rdev->ops->set_noack_map)
2812 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2814 return rdev_set_noack_map(rdev, dev, noack_map);
2817 struct get_key_cookie {
2818 struct sk_buff *msg;
2823 static void get_key_callback(void *c, struct key_params *params)
2826 struct get_key_cookie *cookie = c;
2829 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2830 params->key_len, params->key)) ||
2832 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2833 params->seq_len, params->seq)) ||
2835 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2837 goto nla_put_failure;
2839 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2841 goto nla_put_failure;
2844 nla_put(cookie->msg, NL80211_KEY_DATA,
2845 params->key_len, params->key)) ||
2847 nla_put(cookie->msg, NL80211_KEY_SEQ,
2848 params->seq_len, params->seq)) ||
2850 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2852 goto nla_put_failure;
2854 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2855 goto nla_put_failure;
2857 nla_nest_end(cookie->msg, key);
2864 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2866 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2868 struct net_device *dev = info->user_ptr[1];
2870 const u8 *mac_addr = NULL;
2872 struct get_key_cookie cookie = {
2876 struct sk_buff *msg;
2878 if (info->attrs[NL80211_ATTR_KEY_IDX])
2879 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2884 if (info->attrs[NL80211_ATTR_MAC])
2885 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2887 pairwise = !!mac_addr;
2888 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2889 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2890 if (kt >= NUM_NL80211_KEYTYPES)
2892 if (kt != NL80211_KEYTYPE_GROUP &&
2893 kt != NL80211_KEYTYPE_PAIRWISE)
2895 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2898 if (!rdev->ops->get_key)
2901 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2908 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2909 NL80211_CMD_NEW_KEY);
2911 goto nla_put_failure;
2914 cookie.idx = key_idx;
2916 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2917 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2918 goto nla_put_failure;
2920 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2921 goto nla_put_failure;
2923 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2930 goto nla_put_failure;
2932 genlmsg_end(msg, hdr);
2933 return genlmsg_reply(msg, info);
2942 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2945 struct key_parse key;
2947 struct net_device *dev = info->user_ptr[1];
2949 err = nl80211_parse_key(info, &key);
2956 /* only support setting default key */
2957 if (!key.def && !key.defmgmt)
2960 wdev_lock(dev->ieee80211_ptr);
2963 if (!rdev->ops->set_default_key) {
2968 err = nl80211_key_allowed(dev->ieee80211_ptr);
2972 err = rdev_set_default_key(rdev, dev, key.idx,
2973 key.def_uni, key.def_multi);
2978 #ifdef CONFIG_CFG80211_WEXT
2979 dev->ieee80211_ptr->wext.default_key = key.idx;
2982 if (key.def_uni || !key.def_multi) {
2987 if (!rdev->ops->set_default_mgmt_key) {
2992 err = nl80211_key_allowed(dev->ieee80211_ptr);
2996 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
3000 #ifdef CONFIG_CFG80211_WEXT
3001 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
3006 wdev_unlock(dev->ieee80211_ptr);
3011 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
3013 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3015 struct net_device *dev = info->user_ptr[1];
3016 struct key_parse key;
3017 const u8 *mac_addr = NULL;
3019 err = nl80211_parse_key(info, &key);
3026 if (info->attrs[NL80211_ATTR_MAC])
3027 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3029 if (key.type == -1) {
3031 key.type = NL80211_KEYTYPE_PAIRWISE;
3033 key.type = NL80211_KEYTYPE_GROUP;
3037 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3038 key.type != NL80211_KEYTYPE_GROUP)
3041 if (!rdev->ops->add_key)
3044 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3045 key.type == NL80211_KEYTYPE_PAIRWISE,
3049 wdev_lock(dev->ieee80211_ptr);
3050 err = nl80211_key_allowed(dev->ieee80211_ptr);
3052 err = rdev_add_key(rdev, dev, key.idx,
3053 key.type == NL80211_KEYTYPE_PAIRWISE,
3055 wdev_unlock(dev->ieee80211_ptr);
3060 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3062 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3064 struct net_device *dev = info->user_ptr[1];
3065 u8 *mac_addr = NULL;
3066 struct key_parse key;
3068 err = nl80211_parse_key(info, &key);
3072 if (info->attrs[NL80211_ATTR_MAC])
3073 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3075 if (key.type == -1) {
3077 key.type = NL80211_KEYTYPE_PAIRWISE;
3079 key.type = NL80211_KEYTYPE_GROUP;
3083 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3084 key.type != NL80211_KEYTYPE_GROUP)
3087 if (!rdev->ops->del_key)
3090 wdev_lock(dev->ieee80211_ptr);
3091 err = nl80211_key_allowed(dev->ieee80211_ptr);
3093 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3094 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3098 err = rdev_del_key(rdev, dev, key.idx,
3099 key.type == NL80211_KEYTYPE_PAIRWISE,
3102 #ifdef CONFIG_CFG80211_WEXT
3104 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3105 dev->ieee80211_ptr->wext.default_key = -1;
3106 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3107 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3110 wdev_unlock(dev->ieee80211_ptr);
3115 /* This function returns an error or the number of nested attributes */
3116 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3118 struct nlattr *attr;
3119 int n_entries = 0, tmp;
3121 nla_for_each_nested(attr, nl_attr, tmp) {
3122 if (nla_len(attr) != ETH_ALEN)
3132 * This function parses ACL information and allocates memory for ACL data.
3133 * On successful return, the calling function is responsible to free the
3134 * ACL buffer returned by this function.
3136 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3137 struct genl_info *info)
3139 enum nl80211_acl_policy acl_policy;
3140 struct nlattr *attr;
3141 struct cfg80211_acl_data *acl;
3142 int i = 0, n_entries, tmp;
3144 if (!wiphy->max_acl_mac_addrs)
3145 return ERR_PTR(-EOPNOTSUPP);
3147 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3148 return ERR_PTR(-EINVAL);
3150 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3151 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3152 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3153 return ERR_PTR(-EINVAL);
3155 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3156 return ERR_PTR(-EINVAL);
3158 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3160 return ERR_PTR(n_entries);
3162 if (n_entries > wiphy->max_acl_mac_addrs)
3163 return ERR_PTR(-ENOTSUPP);
3165 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3168 return ERR_PTR(-ENOMEM);
3170 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3171 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3175 acl->n_acl_entries = n_entries;
3176 acl->acl_policy = acl_policy;
3181 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3183 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3184 struct net_device *dev = info->user_ptr[1];
3185 struct cfg80211_acl_data *acl;
3188 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3189 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3192 if (!dev->ieee80211_ptr->beacon_interval)
3195 acl = parse_acl_data(&rdev->wiphy, info);
3197 return PTR_ERR(acl);
3199 err = rdev_set_mac_acl(rdev, dev, acl);
3206 static int nl80211_parse_beacon(struct nlattr *attrs[],
3207 struct cfg80211_beacon_data *bcn)
3209 bool haveinfo = false;
3211 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3212 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3213 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3214 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3217 memset(bcn, 0, sizeof(*bcn));
3219 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3220 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3221 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3227 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3228 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3229 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3236 if (attrs[NL80211_ATTR_IE]) {
3237 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3238 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3241 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3242 bcn->proberesp_ies =
3243 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3244 bcn->proberesp_ies_len =
3245 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3248 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3249 bcn->assocresp_ies =
3250 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3251 bcn->assocresp_ies_len =
3252 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3255 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3256 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3257 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3263 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3264 struct cfg80211_ap_settings *params)
3266 struct wireless_dev *wdev;
3269 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3270 if (wdev->iftype != NL80211_IFTYPE_AP &&
3271 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3274 if (!wdev->preset_chandef.chan)
3277 params->chandef = wdev->preset_chandef;
3285 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3286 enum nl80211_auth_type auth_type,
3287 enum nl80211_commands cmd)
3289 if (auth_type > NL80211_AUTHTYPE_MAX)
3293 case NL80211_CMD_AUTHENTICATE:
3294 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3295 auth_type == NL80211_AUTHTYPE_SAE)
3298 case NL80211_CMD_CONNECT:
3299 case NL80211_CMD_START_AP:
3300 /* SAE not supported yet */
3301 if (auth_type == NL80211_AUTHTYPE_SAE)
3309 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3312 struct net_device *dev = info->user_ptr[1];
3313 struct wireless_dev *wdev = dev->ieee80211_ptr;
3314 struct cfg80211_ap_settings params;
3317 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3318 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3321 if (!rdev->ops->start_ap)
3324 if (wdev->beacon_interval)
3327 memset(¶ms, 0, sizeof(params));
3329 /* these are required for START_AP */
3330 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3331 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3332 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3335 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3339 params.beacon_interval =
3340 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3341 params.dtim_period =
3342 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3344 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3349 * In theory, some of these attributes should be required here
3350 * but since they were not used when the command was originally
3351 * added, keep them optional for old user space programs to let
3352 * them continue to work with drivers that do not need the
3353 * additional information -- drivers must check!
3355 if (info->attrs[NL80211_ATTR_SSID]) {
3356 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3358 nla_len(info->attrs[NL80211_ATTR_SSID]);
3359 if (params.ssid_len == 0 ||
3360 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3364 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3365 params.hidden_ssid = nla_get_u32(
3366 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3367 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3368 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3369 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3373 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3375 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3376 params.auth_type = nla_get_u32(
3377 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3378 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3379 NL80211_CMD_START_AP))
3382 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3384 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3385 NL80211_MAX_NR_CIPHER_SUITES);
3389 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3390 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3392 params.inactivity_timeout = nla_get_u16(
3393 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3396 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3397 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3399 params.p2p_ctwindow =
3400 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3401 if (params.p2p_ctwindow > 127)
3403 if (params.p2p_ctwindow != 0 &&
3404 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3408 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3411 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3413 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3416 params.p2p_opp_ps = tmp;
3417 if (params.p2p_opp_ps != 0 &&
3418 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3422 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3423 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3426 } else if (wdev->preset_chandef.chan) {
3427 params.chandef = wdev->preset_chandef;
3428 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3431 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3435 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3437 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3438 switch (params.smps_mode) {
3439 case NL80211_SMPS_OFF:
3441 case NL80211_SMPS_STATIC:
3442 if (!(rdev->wiphy.features &
3443 NL80211_FEATURE_STATIC_SMPS))
3446 case NL80211_SMPS_DYNAMIC:
3447 if (!(rdev->wiphy.features &
3448 NL80211_FEATURE_DYNAMIC_SMPS))
3455 params.smps_mode = NL80211_SMPS_OFF;
3458 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3459 params.acl = parse_acl_data(&rdev->wiphy, info);
3460 if (IS_ERR(params.acl))
3461 return PTR_ERR(params.acl);
3465 err = rdev_start_ap(rdev, dev, ¶ms);
3467 wdev->preset_chandef = params.chandef;
3468 wdev->beacon_interval = params.beacon_interval;
3469 wdev->chandef = params.chandef;
3470 wdev->ssid_len = params.ssid_len;
3471 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3480 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3482 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3483 struct net_device *dev = info->user_ptr[1];
3484 struct wireless_dev *wdev = dev->ieee80211_ptr;
3485 struct cfg80211_beacon_data params;
3488 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3489 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3492 if (!rdev->ops->change_beacon)
3495 if (!wdev->beacon_interval)
3498 err = nl80211_parse_beacon(info->attrs, ¶ms);
3503 err = rdev_change_beacon(rdev, dev, ¶ms);
3509 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3511 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3512 struct net_device *dev = info->user_ptr[1];
3514 return cfg80211_stop_ap(rdev, dev, false);
3517 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3518 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3519 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3520 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3521 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3522 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3523 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3526 static int parse_station_flags(struct genl_info *info,
3527 enum nl80211_iftype iftype,
3528 struct station_parameters *params)
3530 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3535 * Try parsing the new attribute first so userspace
3536 * can specify both for older kernels.
3538 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3540 struct nl80211_sta_flag_update *sta_flags;
3542 sta_flags = nla_data(nla);
3543 params->sta_flags_mask = sta_flags->mask;
3544 params->sta_flags_set = sta_flags->set;
3545 params->sta_flags_set &= params->sta_flags_mask;
3546 if ((params->sta_flags_mask |
3547 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3552 /* if present, parse the old attribute */
3554 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3558 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3559 nla, sta_flags_policy))
3563 * Only allow certain flags for interface types so that
3564 * other attributes are silently ignored. Remember that
3565 * this is backward compatibility code with old userspace
3566 * and shouldn't be hit in other cases anyway.
3569 case NL80211_IFTYPE_AP:
3570 case NL80211_IFTYPE_AP_VLAN:
3571 case NL80211_IFTYPE_P2P_GO:
3572 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3573 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3574 BIT(NL80211_STA_FLAG_WME) |
3575 BIT(NL80211_STA_FLAG_MFP);
3577 case NL80211_IFTYPE_P2P_CLIENT:
3578 case NL80211_IFTYPE_STATION:
3579 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3580 BIT(NL80211_STA_FLAG_TDLS_PEER);
3582 case NL80211_IFTYPE_MESH_POINT:
3583 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3584 BIT(NL80211_STA_FLAG_MFP) |
3585 BIT(NL80211_STA_FLAG_AUTHORIZED);
3590 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3592 params->sta_flags_set |= (1<<flag);
3594 /* no longer support new API additions in old API */
3595 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3603 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3606 struct nlattr *rate;
3609 enum nl80211_attrs rate_flg;
3611 rate = nla_nest_start(msg, attr);
3615 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3616 bitrate = cfg80211_calculate_bitrate(info);
3617 /* report 16-bit bitrate only if we can */
3618 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3620 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3622 if (bitrate_compat > 0 &&
3623 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3627 case RATE_INFO_BW_5:
3628 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3630 case RATE_INFO_BW_10:
3631 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3636 case RATE_INFO_BW_20:
3639 case RATE_INFO_BW_40:
3640 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3642 case RATE_INFO_BW_80:
3643 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3645 case RATE_INFO_BW_160:
3646 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3650 if (rate_flg && nla_put_flag(msg, rate_flg))
3653 if (info->flags & RATE_INFO_FLAGS_MCS) {
3654 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3656 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3657 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3659 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3660 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3662 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3664 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3665 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3669 nla_nest_end(msg, rate);
3673 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3682 attr = nla_nest_start(msg, id);
3686 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3687 if (!(mask & BIT(i)))
3690 if (nla_put_u8(msg, i, signal[i]))
3694 nla_nest_end(msg, attr);
3699 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3701 struct cfg80211_registered_device *rdev,
3702 struct net_device *dev,
3703 const u8 *mac_addr, struct station_info *sinfo)
3706 struct nlattr *sinfoattr, *bss_param;
3708 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3712 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3713 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3714 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3715 goto nla_put_failure;
3717 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3719 goto nla_put_failure;
3721 #define PUT_SINFO(attr, memb, type) do { \
3722 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3723 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3725 goto nla_put_failure; \
3728 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3729 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3731 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3732 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3733 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3734 (u32)sinfo->rx_bytes))
3735 goto nla_put_failure;
3737 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3738 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3739 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3740 (u32)sinfo->tx_bytes))
3741 goto nla_put_failure;
3743 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3744 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3745 PUT_SINFO(LLID, llid, u16);
3746 PUT_SINFO(PLID, plid, u16);
3747 PUT_SINFO(PLINK_STATE, plink_state, u8);
3749 switch (rdev->wiphy.signal_type) {
3750 case CFG80211_SIGNAL_TYPE_MBM:
3751 PUT_SINFO(SIGNAL, signal, u8);
3752 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3757 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3758 if (!nl80211_put_signal(msg, sinfo->chains,
3759 sinfo->chain_signal,
3760 NL80211_STA_INFO_CHAIN_SIGNAL))
3761 goto nla_put_failure;
3763 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3764 if (!nl80211_put_signal(msg, sinfo->chains,
3765 sinfo->chain_signal_avg,
3766 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3767 goto nla_put_failure;
3769 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3770 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3771 NL80211_STA_INFO_TX_BITRATE))
3772 goto nla_put_failure;
3774 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3775 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3776 NL80211_STA_INFO_RX_BITRATE))
3777 goto nla_put_failure;
3780 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3781 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3782 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3783 PUT_SINFO(TX_FAILED, tx_failed, u32);
3784 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3785 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3786 PUT_SINFO(LOCAL_PM, local_pm, u32);
3787 PUT_SINFO(PEER_PM, peer_pm, u32);
3788 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3790 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3791 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3793 goto nla_put_failure;
3795 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3796 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3797 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3798 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3799 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3800 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3801 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3802 sinfo->bss_param.dtim_period) ||
3803 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3804 sinfo->bss_param.beacon_interval))
3805 goto nla_put_failure;
3807 nla_nest_end(msg, bss_param);
3809 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3810 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3811 sizeof(struct nl80211_sta_flag_update),
3813 goto nla_put_failure;
3815 PUT_SINFO(T_OFFSET, t_offset, u64);
3816 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
3817 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3818 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3822 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3823 struct nlattr *tidsattr;
3826 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3828 goto nla_put_failure;
3830 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3831 struct cfg80211_tid_stats *tidstats;
3832 struct nlattr *tidattr;
3834 tidstats = &sinfo->pertid[tid];
3836 if (!tidstats->filled)
3839 tidattr = nla_nest_start(msg, tid + 1);
3841 goto nla_put_failure;
3843 #define PUT_TIDVAL(attr, memb, type) do { \
3844 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3845 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3847 goto nla_put_failure; \
3850 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3851 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3852 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3853 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3856 nla_nest_end(msg, tidattr);
3859 nla_nest_end(msg, tidsattr);
3862 nla_nest_end(msg, sinfoattr);
3864 if (sinfo->assoc_req_ies_len &&
3865 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3866 sinfo->assoc_req_ies))
3867 goto nla_put_failure;
3869 genlmsg_end(msg, hdr);
3873 genlmsg_cancel(msg, hdr);
3877 static int nl80211_dump_station(struct sk_buff *skb,
3878 struct netlink_callback *cb)
3880 struct station_info sinfo;
3881 struct cfg80211_registered_device *rdev;
3882 struct wireless_dev *wdev;
3883 u8 mac_addr[ETH_ALEN];
3884 int sta_idx = cb->args[2];
3887 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3891 if (!wdev->netdev) {
3896 if (!rdev->ops->dump_station) {
3902 memset(&sinfo, 0, sizeof(sinfo));
3903 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3910 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
3911 NETLINK_CB(cb->skb).portid,
3912 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3913 rdev, wdev->netdev, mac_addr,
3922 cb->args[2] = sta_idx;
3925 nl80211_finish_wdev_dump(rdev);
3930 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3932 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3933 struct net_device *dev = info->user_ptr[1];
3934 struct station_info sinfo;
3935 struct sk_buff *msg;
3936 u8 *mac_addr = NULL;
3939 memset(&sinfo, 0, sizeof(sinfo));
3941 if (!info->attrs[NL80211_ATTR_MAC])
3944 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3946 if (!rdev->ops->get_station)
3949 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3953 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3957 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3958 info->snd_portid, info->snd_seq, 0,
3959 rdev, dev, mac_addr, &sinfo) < 0) {
3964 return genlmsg_reply(msg, info);
3967 int cfg80211_check_station_change(struct wiphy *wiphy,
3968 struct station_parameters *params,
3969 enum cfg80211_station_type statype)
3971 if (params->listen_interval != -1 &&
3972 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
3976 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
3977 statype != CFG80211_STA_AP_CLIENT_UNASSOC)
3980 /* When you run into this, adjust the code below for the new flag */
3981 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3984 case CFG80211_STA_MESH_PEER_KERNEL:
3985 case CFG80211_STA_MESH_PEER_USER:
3987 * No ignoring the TDLS flag here -- the userspace mesh
3988 * code doesn't have the bug of including TDLS in the
3991 if (params->sta_flags_mask &
3992 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3993 BIT(NL80211_STA_FLAG_MFP) |
3994 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3997 case CFG80211_STA_TDLS_PEER_SETUP:
3998 case CFG80211_STA_TDLS_PEER_ACTIVE:
3999 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4001 /* ignore since it can't change */
4002 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4005 /* disallow mesh-specific things */
4006 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
4008 if (params->local_pm)
4010 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4014 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4015 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
4016 /* TDLS can't be set, ... */
4017 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
4020 * ... but don't bother the driver with it. This works around
4021 * a hostapd/wpa_supplicant issue -- it always includes the
4022 * TLDS_PEER flag in the mask even for AP mode.
4024 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4027 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
4028 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4029 /* reject other things that can't change */
4030 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4032 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4034 if (params->supported_rates)
4036 if (params->ext_capab || params->ht_capa || params->vht_capa)
4040 if (statype != CFG80211_STA_AP_CLIENT &&
4041 statype != CFG80211_STA_AP_CLIENT_UNASSOC) {
4047 case CFG80211_STA_AP_MLME_CLIENT:
4048 /* Use this only for authorizing/unauthorizing a station */
4049 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4052 case CFG80211_STA_AP_CLIENT:
4053 case CFG80211_STA_AP_CLIENT_UNASSOC:
4054 /* accept only the listed bits */
4055 if (params->sta_flags_mask &
4056 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4057 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4058 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4059 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4060 BIT(NL80211_STA_FLAG_WME) |
4061 BIT(NL80211_STA_FLAG_MFP)))
4064 /* but authenticated/associated only if driver handles it */
4065 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4066 params->sta_flags_mask &
4067 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4068 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4071 case CFG80211_STA_IBSS:
4072 case CFG80211_STA_AP_STA:
4073 /* reject any changes other than AUTHORIZED */
4074 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4077 case CFG80211_STA_TDLS_PEER_SETUP:
4078 /* reject any changes other than AUTHORIZED or WME */
4079 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4080 BIT(NL80211_STA_FLAG_WME)))
4082 /* force (at least) rates when authorizing */
4083 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4084 !params->supported_rates)
4087 case CFG80211_STA_TDLS_PEER_ACTIVE:
4088 /* reject any changes */
4090 case CFG80211_STA_MESH_PEER_KERNEL:
4091 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4094 case CFG80211_STA_MESH_PEER_USER:
4095 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4096 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4103 EXPORT_SYMBOL(cfg80211_check_station_change);
4106 * Get vlan interface making sure it is running and on the right wiphy.
4108 static struct net_device *get_vlan(struct genl_info *info,
4109 struct cfg80211_registered_device *rdev)
4111 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4112 struct net_device *v;
4118 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4120 return ERR_PTR(-ENODEV);
4122 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4127 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4128 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4129 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4134 if (!netif_running(v)) {
4142 return ERR_PTR(ret);
4145 static const struct nla_policy
4146 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4147 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4148 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4151 static int nl80211_parse_sta_wme(struct genl_info *info,
4152 struct station_parameters *params)
4154 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4158 /* parse WME attributes if present */
4159 if (!info->attrs[NL80211_ATTR_STA_WME])
4162 nla = info->attrs[NL80211_ATTR_STA_WME];
4163 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4164 nl80211_sta_wme_policy);
4168 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4169 params->uapsd_queues = nla_get_u8(
4170 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4171 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4174 if (tb[NL80211_STA_WME_MAX_SP])
4175 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4177 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4180 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4185 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4186 struct station_parameters *params)
4188 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4189 params->supported_channels =
4190 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4191 params->supported_channels_len =
4192 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4194 * Need to include at least one (first channel, number of
4195 * channels) tuple for each subband, and must have proper
4196 * tuples for the rest of the data as well.
4198 if (params->supported_channels_len < 2)
4200 if (params->supported_channels_len % 2)
4204 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4205 params->supported_oper_classes =
4206 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4207 params->supported_oper_classes_len =
4208 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4210 * The value of the Length field of the Supported Operating
4211 * Classes element is between 2 and 253.
4213 if (params->supported_oper_classes_len < 2 ||
4214 params->supported_oper_classes_len > 253)
4220 static int nl80211_set_station_tdls(struct genl_info *info,
4221 struct station_parameters *params)
4224 /* Dummy STA entry gets updated once the peer capabilities are known */
4225 if (info->attrs[NL80211_ATTR_PEER_AID])
4226 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4227 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4229 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4230 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4232 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4234 err = nl80211_parse_sta_channel_info(info, params);
4238 return nl80211_parse_sta_wme(info, params);
4241 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4243 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4244 struct net_device *dev = info->user_ptr[1];
4245 struct station_parameters params;
4249 memset(¶ms, 0, sizeof(params));
4251 if (!rdev->ops->change_station)
4255 * AID and listen_interval properties can be set only for unassociated
4256 * station. Include these parameters here and will check them in
4257 * cfg80211_check_station_change().
4259 if (info->attrs[NL80211_ATTR_STA_AID])
4260 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4262 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4263 params.listen_interval =
4264 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4266 params.listen_interval = -1;
4268 if (!info->attrs[NL80211_ATTR_MAC])
4271 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4273 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4274 params.supported_rates =
4275 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4276 params.supported_rates_len =
4277 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4280 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4282 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4283 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4286 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4288 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4289 params.ext_capab_len =
4290 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4293 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4296 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4297 params.plink_action =
4298 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4299 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4303 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4304 params.plink_state =
4305 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4306 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4308 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4311 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4312 enum nl80211_mesh_power_mode pm = nla_get_u32(
4313 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4315 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4316 pm > NL80211_MESH_POWER_MAX)
4319 params.local_pm = pm;
4322 /* Include parameters for TDLS peer (will check later) */
4323 err = nl80211_set_station_tdls(info, ¶ms);
4327 params.vlan = get_vlan(info, rdev);
4328 if (IS_ERR(params.vlan))
4329 return PTR_ERR(params.vlan);
4331 switch (dev->ieee80211_ptr->iftype) {
4332 case NL80211_IFTYPE_AP:
4333 case NL80211_IFTYPE_AP_VLAN:
4334 case NL80211_IFTYPE_P2P_GO:
4335 case NL80211_IFTYPE_P2P_CLIENT:
4336 case NL80211_IFTYPE_STATION:
4337 case NL80211_IFTYPE_ADHOC:
4338 case NL80211_IFTYPE_MESH_POINT:
4345 /* driver will call cfg80211_check_station_change() */
4346 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4350 dev_put(params.vlan);
4355 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4357 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4359 struct net_device *dev = info->user_ptr[1];
4360 struct station_parameters params;
4361 u8 *mac_addr = NULL;
4362 u32 auth_assoc = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4363 BIT(NL80211_STA_FLAG_ASSOCIATED);
4365 memset(¶ms, 0, sizeof(params));
4367 if (!rdev->ops->add_station)
4370 if (!info->attrs[NL80211_ATTR_MAC])
4373 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4376 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4379 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4380 !info->attrs[NL80211_ATTR_PEER_AID])
4383 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4384 params.supported_rates =
4385 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4386 params.supported_rates_len =
4387 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4388 params.listen_interval =
4389 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4391 if (info->attrs[NL80211_ATTR_PEER_AID])
4392 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4394 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4395 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4398 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4400 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4401 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4404 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4406 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4407 params.ext_capab_len =
4408 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4411 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4413 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4415 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4417 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4419 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4420 params.opmode_notif_used = true;
4421 params.opmode_notif =
4422 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4425 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4426 params.plink_action =
4427 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4428 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4432 err = nl80211_parse_sta_channel_info(info, ¶ms);
4436 err = nl80211_parse_sta_wme(info, ¶ms);
4440 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4443 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4444 * as userspace might just pass through the capabilities from the IEs
4445 * directly, rather than enforcing this restriction and returning an
4446 * error in this case.
4448 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4449 params.ht_capa = NULL;
4450 params.vht_capa = NULL;
4453 /* When you run into this, adjust the code below for the new flag */
4454 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4456 switch (dev->ieee80211_ptr->iftype) {
4457 case NL80211_IFTYPE_AP:
4458 case NL80211_IFTYPE_AP_VLAN:
4459 case NL80211_IFTYPE_P2P_GO:
4460 /* ignore WME attributes if iface/sta is not capable */
4461 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4462 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4463 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4465 /* TDLS peers cannot be added */
4466 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4467 info->attrs[NL80211_ATTR_PEER_AID])
4469 /* but don't bother the driver with it */
4470 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4472 /* allow authenticated/associated only if driver handles it */
4473 if (!(rdev->wiphy.features &
4474 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4475 params.sta_flags_mask & auth_assoc)
4478 /* Older userspace, or userspace wanting to be compatible with
4479 * !NL80211_FEATURE_FULL_AP_CLIENT_STATE, will not set the auth
4480 * and assoc flags in the mask, but assumes the station will be
4481 * added as associated anyway since this was the required driver
4482 * behaviour before NL80211_FEATURE_FULL_AP_CLIENT_STATE was
4484 * In order to not bother drivers with this quirk in the API
4485 * set the flags in both the mask and set for new stations in
4488 if (!(params.sta_flags_mask & auth_assoc)) {
4489 params.sta_flags_mask |= auth_assoc;
4490 params.sta_flags_set |= auth_assoc;
4493 /* must be last in here for error handling */
4494 params.vlan = get_vlan(info, rdev);
4495 if (IS_ERR(params.vlan))
4496 return PTR_ERR(params.vlan);
4498 case NL80211_IFTYPE_MESH_POINT:
4499 /* ignore uAPSD data */
4500 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4502 /* associated is disallowed */
4503 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4505 /* TDLS peers cannot be added */
4506 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4507 info->attrs[NL80211_ATTR_PEER_AID])
4510 case NL80211_IFTYPE_STATION:
4511 case NL80211_IFTYPE_P2P_CLIENT:
4512 /* ignore uAPSD data */
4513 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4515 /* these are disallowed */
4516 if (params.sta_flags_mask &
4517 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4518 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4520 /* Only TDLS peers can be added */
4521 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4523 /* Can only add if TDLS ... */
4524 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4526 /* ... with external setup is supported */
4527 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4530 * Older wpa_supplicant versions always mark the TDLS peer
4531 * as authorized, but it shouldn't yet be.
4533 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4539 /* be aware of params.vlan when changing code here */
4541 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4544 dev_put(params.vlan);
4548 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4550 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4551 struct net_device *dev = info->user_ptr[1];
4552 struct station_del_parameters params;
4554 memset(¶ms, 0, sizeof(params));
4556 if (info->attrs[NL80211_ATTR_MAC])
4557 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4559 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4560 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4561 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4562 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4565 if (!rdev->ops->del_station)
4568 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4570 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4571 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4572 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4575 /* Default to Deauthentication frame */
4576 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4579 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4580 params.reason_code =
4581 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4582 if (params.reason_code == 0)
4583 return -EINVAL; /* 0 is reserved */
4585 /* Default to reason code 2 */
4586 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4589 return rdev_del_station(rdev, dev, ¶ms);
4592 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4593 int flags, struct net_device *dev,
4594 u8 *dst, u8 *next_hop,
4595 struct mpath_info *pinfo)
4598 struct nlattr *pinfoattr;
4600 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4604 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4605 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4606 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4607 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4608 goto nla_put_failure;
4610 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4612 goto nla_put_failure;
4613 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4614 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4616 goto nla_put_failure;
4617 if (((pinfo->filled & MPATH_INFO_SN) &&
4618 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4619 ((pinfo->filled & MPATH_INFO_METRIC) &&
4620 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4622 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4623 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4625 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4626 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4628 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4629 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4630 pinfo->discovery_timeout)) ||
4631 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4632 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4633 pinfo->discovery_retries)))
4634 goto nla_put_failure;
4636 nla_nest_end(msg, pinfoattr);
4638 genlmsg_end(msg, hdr);
4642 genlmsg_cancel(msg, hdr);
4646 static int nl80211_dump_mpath(struct sk_buff *skb,
4647 struct netlink_callback *cb)
4649 struct mpath_info pinfo;
4650 struct cfg80211_registered_device *rdev;
4651 struct wireless_dev *wdev;
4653 u8 next_hop[ETH_ALEN];
4654 int path_idx = cb->args[2];
4657 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4661 if (!rdev->ops->dump_mpath) {
4666 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4672 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4679 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4680 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4681 wdev->netdev, dst, next_hop,
4690 cb->args[2] = path_idx;
4693 nl80211_finish_wdev_dump(rdev);
4697 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4699 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4701 struct net_device *dev = info->user_ptr[1];
4702 struct mpath_info pinfo;
4703 struct sk_buff *msg;
4705 u8 next_hop[ETH_ALEN];
4707 memset(&pinfo, 0, sizeof(pinfo));
4709 if (!info->attrs[NL80211_ATTR_MAC])
4712 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4714 if (!rdev->ops->get_mpath)
4717 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4720 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4724 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4728 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4729 dev, dst, next_hop, &pinfo) < 0) {
4734 return genlmsg_reply(msg, info);
4737 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4739 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4740 struct net_device *dev = info->user_ptr[1];
4742 u8 *next_hop = NULL;
4744 if (!info->attrs[NL80211_ATTR_MAC])
4747 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4750 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4751 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4753 if (!rdev->ops->change_mpath)
4756 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4759 return rdev_change_mpath(rdev, dev, dst, next_hop);
4762 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4764 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4765 struct net_device *dev = info->user_ptr[1];
4767 u8 *next_hop = NULL;
4769 if (!info->attrs[NL80211_ATTR_MAC])
4772 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4775 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4776 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4778 if (!rdev->ops->add_mpath)
4781 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4784 return rdev_add_mpath(rdev, dev, dst, next_hop);
4787 static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info)
4789 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4790 struct net_device *dev = info->user_ptr[1];
4793 if (info->attrs[NL80211_ATTR_MAC])
4794 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4796 if (!rdev->ops->del_mpath)
4799 return rdev_del_mpath(rdev, dev, dst);
4802 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4804 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4806 struct net_device *dev = info->user_ptr[1];
4807 struct mpath_info pinfo;
4808 struct sk_buff *msg;
4812 memset(&pinfo, 0, sizeof(pinfo));
4814 if (!info->attrs[NL80211_ATTR_MAC])
4817 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4819 if (!rdev->ops->get_mpp)
4822 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4825 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4829 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4833 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4834 dev, dst, mpp, &pinfo) < 0) {
4839 return genlmsg_reply(msg, info);
4842 static int nl80211_dump_mpp(struct sk_buff *skb,
4843 struct netlink_callback *cb)
4845 struct mpath_info pinfo;
4846 struct cfg80211_registered_device *rdev;
4847 struct wireless_dev *wdev;
4850 int path_idx = cb->args[2];
4853 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4857 if (!rdev->ops->dump_mpp) {
4862 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4868 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4875 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4876 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4877 wdev->netdev, dst, mpp,
4885 cb->args[2] = path_idx;
4888 nl80211_finish_wdev_dump(rdev);
4892 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4894 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4895 struct net_device *dev = info->user_ptr[1];
4896 struct wireless_dev *wdev = dev->ieee80211_ptr;
4897 struct bss_parameters params;
4900 memset(¶ms, 0, sizeof(params));
4901 /* default to not changing parameters */
4902 params.use_cts_prot = -1;
4903 params.use_short_preamble = -1;
4904 params.use_short_slot_time = -1;
4905 params.ap_isolate = -1;
4906 params.ht_opmode = -1;
4907 params.p2p_ctwindow = -1;
4908 params.p2p_opp_ps = -1;
4910 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4911 params.use_cts_prot =
4912 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4913 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4914 params.use_short_preamble =
4915 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4916 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4917 params.use_short_slot_time =
4918 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4919 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4920 params.basic_rates =
4921 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4922 params.basic_rates_len =
4923 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4925 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4926 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4927 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4929 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4931 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4932 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4934 params.p2p_ctwindow =
4935 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4936 if (params.p2p_ctwindow < 0)
4938 if (params.p2p_ctwindow != 0 &&
4939 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4943 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4946 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4948 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4951 params.p2p_opp_ps = tmp;
4952 if (params.p2p_opp_ps &&
4953 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4957 if (!rdev->ops->change_bss)
4960 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4961 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4965 err = rdev_change_bss(rdev, dev, ¶ms);
4971 static int nl80211_req_set_reg(struct sk_buff *skb, struct genl_info *info)
4975 enum nl80211_user_reg_hint_type user_reg_hint_type;
4980 * You should only get this when cfg80211 hasn't yet initialized
4981 * completely when built-in to the kernel right between the time
4982 * window between nl80211_init() and regulatory_init(), if that is
4985 if (unlikely(!rcu_access_pointer(cfg80211_regdomain)))
4986 return -EINPROGRESS;
4988 if (info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE])
4989 user_reg_hint_type =
4990 nla_get_u32(info->attrs[NL80211_ATTR_USER_REG_HINT_TYPE]);
4992 user_reg_hint_type = NL80211_USER_REG_HINT_USER;
4994 switch (user_reg_hint_type) {
4995 case NL80211_USER_REG_HINT_USER:
4996 case NL80211_USER_REG_HINT_CELL_BASE:
4997 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5000 data = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5001 return regulatory_hint_user(data, user_reg_hint_type);
5002 case NL80211_USER_REG_HINT_INDOOR:
5003 if (info->attrs[NL80211_ATTR_SOCKET_OWNER]) {
5004 owner_nlportid = info->snd_portid;
5005 is_indoor = !!info->attrs[NL80211_ATTR_REG_INDOOR];
5011 return regulatory_hint_indoor(is_indoor, owner_nlportid);
5017 static int nl80211_get_mesh_config(struct sk_buff *skb,
5018 struct genl_info *info)
5020 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5021 struct net_device *dev = info->user_ptr[1];
5022 struct wireless_dev *wdev = dev->ieee80211_ptr;
5023 struct mesh_config cur_params;
5026 struct nlattr *pinfoattr;
5027 struct sk_buff *msg;
5029 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5032 if (!rdev->ops->get_mesh_config)
5036 /* If not connected, get default parameters */
5037 if (!wdev->mesh_id_len)
5038 memcpy(&cur_params, &default_mesh_config, sizeof(cur_params));
5040 err = rdev_get_mesh_config(rdev, dev, &cur_params);
5046 /* Draw up a netlink message to send back */
5047 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5050 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5051 NL80211_CMD_GET_MESH_CONFIG);
5054 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MESH_CONFIG);
5056 goto nla_put_failure;
5057 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
5058 nla_put_u16(msg, NL80211_MESHCONF_RETRY_TIMEOUT,
5059 cur_params.dot11MeshRetryTimeout) ||
5060 nla_put_u16(msg, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5061 cur_params.dot11MeshConfirmTimeout) ||
5062 nla_put_u16(msg, NL80211_MESHCONF_HOLDING_TIMEOUT,
5063 cur_params.dot11MeshHoldingTimeout) ||
5064 nla_put_u16(msg, NL80211_MESHCONF_MAX_PEER_LINKS,
5065 cur_params.dot11MeshMaxPeerLinks) ||
5066 nla_put_u8(msg, NL80211_MESHCONF_MAX_RETRIES,
5067 cur_params.dot11MeshMaxRetries) ||
5068 nla_put_u8(msg, NL80211_MESHCONF_TTL,
5069 cur_params.dot11MeshTTL) ||
5070 nla_put_u8(msg, NL80211_MESHCONF_ELEMENT_TTL,
5071 cur_params.element_ttl) ||
5072 nla_put_u8(msg, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5073 cur_params.auto_open_plinks) ||
5074 nla_put_u32(msg, NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5075 cur_params.dot11MeshNbrOffsetMaxNeighbor) ||
5076 nla_put_u8(msg, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5077 cur_params.dot11MeshHWMPmaxPREQretries) ||
5078 nla_put_u32(msg, NL80211_MESHCONF_PATH_REFRESH_TIME,
5079 cur_params.path_refresh_time) ||
5080 nla_put_u16(msg, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5081 cur_params.min_discovery_timeout) ||
5082 nla_put_u32(msg, NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5083 cur_params.dot11MeshHWMPactivePathTimeout) ||
5084 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5085 cur_params.dot11MeshHWMPpreqMinInterval) ||
5086 nla_put_u16(msg, NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5087 cur_params.dot11MeshHWMPperrMinInterval) ||
5088 nla_put_u16(msg, NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5089 cur_params.dot11MeshHWMPnetDiameterTraversalTime) ||
5090 nla_put_u8(msg, NL80211_MESHCONF_HWMP_ROOTMODE,
5091 cur_params.dot11MeshHWMPRootMode) ||
5092 nla_put_u16(msg, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5093 cur_params.dot11MeshHWMPRannInterval) ||
5094 nla_put_u8(msg, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5095 cur_params.dot11MeshGateAnnouncementProtocol) ||
5096 nla_put_u8(msg, NL80211_MESHCONF_FORWARDING,
5097 cur_params.dot11MeshForwarding) ||
5098 nla_put_u32(msg, NL80211_MESHCONF_RSSI_THRESHOLD,
5099 cur_params.rssi_threshold) ||
5100 nla_put_u32(msg, NL80211_MESHCONF_HT_OPMODE,
5101 cur_params.ht_opmode) ||
5102 nla_put_u32(msg, NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5103 cur_params.dot11MeshHWMPactivePathToRootTimeout) ||
5104 nla_put_u16(msg, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5105 cur_params.dot11MeshHWMProotInterval) ||
5106 nla_put_u16(msg, NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5107 cur_params.dot11MeshHWMPconfirmationInterval) ||
5108 nla_put_u32(msg, NL80211_MESHCONF_POWER_MODE,
5109 cur_params.power_mode) ||
5110 nla_put_u16(msg, NL80211_MESHCONF_AWAKE_WINDOW,
5111 cur_params.dot11MeshAwakeWindowDuration) ||
5112 nla_put_u32(msg, NL80211_MESHCONF_PLINK_TIMEOUT,
5113 cur_params.plink_timeout))
5114 goto nla_put_failure;
5115 nla_nest_end(msg, pinfoattr);
5116 genlmsg_end(msg, hdr);
5117 return genlmsg_reply(msg, info);
5120 genlmsg_cancel(msg, hdr);
5126 static const struct nla_policy nl80211_meshconf_params_policy[NL80211_MESHCONF_ATTR_MAX+1] = {
5127 [NL80211_MESHCONF_RETRY_TIMEOUT] = { .type = NLA_U16 },
5128 [NL80211_MESHCONF_CONFIRM_TIMEOUT] = { .type = NLA_U16 },
5129 [NL80211_MESHCONF_HOLDING_TIMEOUT] = { .type = NLA_U16 },
5130 [NL80211_MESHCONF_MAX_PEER_LINKS] = { .type = NLA_U16 },
5131 [NL80211_MESHCONF_MAX_RETRIES] = { .type = NLA_U8 },
5132 [NL80211_MESHCONF_TTL] = { .type = NLA_U8 },
5133 [NL80211_MESHCONF_ELEMENT_TTL] = { .type = NLA_U8 },
5134 [NL80211_MESHCONF_AUTO_OPEN_PLINKS] = { .type = NLA_U8 },
5135 [NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR] = { .type = NLA_U32 },
5136 [NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES] = { .type = NLA_U8 },
5137 [NL80211_MESHCONF_PATH_REFRESH_TIME] = { .type = NLA_U32 },
5138 [NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT] = { .type = NLA_U16 },
5139 [NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT] = { .type = NLA_U32 },
5140 [NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL] = { .type = NLA_U16 },
5141 [NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL] = { .type = NLA_U16 },
5142 [NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME] = { .type = NLA_U16 },
5143 [NL80211_MESHCONF_HWMP_ROOTMODE] = { .type = NLA_U8 },
5144 [NL80211_MESHCONF_HWMP_RANN_INTERVAL] = { .type = NLA_U16 },
5145 [NL80211_MESHCONF_GATE_ANNOUNCEMENTS] = { .type = NLA_U8 },
5146 [NL80211_MESHCONF_FORWARDING] = { .type = NLA_U8 },
5147 [NL80211_MESHCONF_RSSI_THRESHOLD] = { .type = NLA_U32 },
5148 [NL80211_MESHCONF_HT_OPMODE] = { .type = NLA_U16 },
5149 [NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT] = { .type = NLA_U32 },
5150 [NL80211_MESHCONF_HWMP_ROOT_INTERVAL] = { .type = NLA_U16 },
5151 [NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL] = { .type = NLA_U16 },
5152 [NL80211_MESHCONF_POWER_MODE] = { .type = NLA_U32 },
5153 [NL80211_MESHCONF_AWAKE_WINDOW] = { .type = NLA_U16 },
5154 [NL80211_MESHCONF_PLINK_TIMEOUT] = { .type = NLA_U32 },
5157 static const struct nla_policy
5158 nl80211_mesh_setup_params_policy[NL80211_MESH_SETUP_ATTR_MAX+1] = {
5159 [NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC] = { .type = NLA_U8 },
5160 [NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL] = { .type = NLA_U8 },
5161 [NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC] = { .type = NLA_U8 },
5162 [NL80211_MESH_SETUP_USERSPACE_AUTH] = { .type = NLA_FLAG },
5163 [NL80211_MESH_SETUP_AUTH_PROTOCOL] = { .type = NLA_U8 },
5164 [NL80211_MESH_SETUP_USERSPACE_MPM] = { .type = NLA_FLAG },
5165 [NL80211_MESH_SETUP_IE] = { .type = NLA_BINARY,
5166 .len = IEEE80211_MAX_DATA_LEN },
5167 [NL80211_MESH_SETUP_USERSPACE_AMPE] = { .type = NLA_FLAG },
5170 static int nl80211_parse_mesh_config(struct genl_info *info,
5171 struct mesh_config *cfg,
5174 struct nlattr *tb[NL80211_MESHCONF_ATTR_MAX + 1];
5177 #define FILL_IN_MESH_PARAM_IF_SET(tb, cfg, param, min, max, mask, attr, fn) \
5180 if (fn(tb[attr]) < min || fn(tb[attr]) > max) \
5182 cfg->param = fn(tb[attr]); \
5183 mask |= (1 << (attr - 1)); \
5188 if (!info->attrs[NL80211_ATTR_MESH_CONFIG])
5190 if (nla_parse_nested(tb, NL80211_MESHCONF_ATTR_MAX,
5191 info->attrs[NL80211_ATTR_MESH_CONFIG],
5192 nl80211_meshconf_params_policy))
5195 /* This makes sure that there aren't more than 32 mesh config
5196 * parameters (otherwise our bitfield scheme would not work.) */
5197 BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
5199 /* Fill in the params struct */
5200 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshRetryTimeout, 1, 255,
5201 mask, NL80211_MESHCONF_RETRY_TIMEOUT,
5203 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshConfirmTimeout, 1, 255,
5204 mask, NL80211_MESHCONF_CONFIRM_TIMEOUT,
5206 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHoldingTimeout, 1, 255,
5207 mask, NL80211_MESHCONF_HOLDING_TIMEOUT,
5209 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxPeerLinks, 0, 255,
5210 mask, NL80211_MESHCONF_MAX_PEER_LINKS,
5212 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshMaxRetries, 0, 16,
5213 mask, NL80211_MESHCONF_MAX_RETRIES,
5215 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshTTL, 1, 255,
5216 mask, NL80211_MESHCONF_TTL, nla_get_u8);
5217 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, element_ttl, 1, 255,
5218 mask, NL80211_MESHCONF_ELEMENT_TTL,
5220 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, auto_open_plinks, 0, 1,
5221 mask, NL80211_MESHCONF_AUTO_OPEN_PLINKS,
5223 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshNbrOffsetMaxNeighbor,
5225 NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR,
5227 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPmaxPREQretries, 0, 255,
5228 mask, NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES,
5230 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, path_refresh_time, 1, 65535,
5231 mask, NL80211_MESHCONF_PATH_REFRESH_TIME,
5233 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, min_discovery_timeout, 1, 65535,
5234 mask, NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT,
5236 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathTimeout,
5238 NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT,
5240 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPpreqMinInterval,
5242 NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL,
5244 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPperrMinInterval,
5246 NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL,
5248 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5249 dot11MeshHWMPnetDiameterTraversalTime,
5251 NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
5253 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRootMode, 0, 4,
5254 mask, NL80211_MESHCONF_HWMP_ROOTMODE,
5256 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPRannInterval, 1, 65535,
5257 mask, NL80211_MESHCONF_HWMP_RANN_INTERVAL,
5259 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5260 dot11MeshGateAnnouncementProtocol, 0, 1,
5261 mask, NL80211_MESHCONF_GATE_ANNOUNCEMENTS,
5263 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshForwarding, 0, 1,
5264 mask, NL80211_MESHCONF_FORWARDING,
5266 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, rssi_threshold, -255, 0,
5267 mask, NL80211_MESHCONF_RSSI_THRESHOLD,
5269 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, ht_opmode, 0, 16,
5270 mask, NL80211_MESHCONF_HT_OPMODE,
5272 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
5274 NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT,
5276 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMProotInterval, 1, 65535,
5277 mask, NL80211_MESHCONF_HWMP_ROOT_INTERVAL,
5279 FILL_IN_MESH_PARAM_IF_SET(tb, cfg,
5280 dot11MeshHWMPconfirmationInterval,
5282 NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL,
5284 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, power_mode,
5285 NL80211_MESH_POWER_ACTIVE,
5286 NL80211_MESH_POWER_MAX,
5287 mask, NL80211_MESHCONF_POWER_MODE,
5289 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshAwakeWindowDuration,
5291 NL80211_MESHCONF_AWAKE_WINDOW, nla_get_u16);
5292 FILL_IN_MESH_PARAM_IF_SET(tb, cfg, plink_timeout, 0, 0xffffffff,
5293 mask, NL80211_MESHCONF_PLINK_TIMEOUT,
5300 #undef FILL_IN_MESH_PARAM_IF_SET
5303 static int nl80211_parse_mesh_setup(struct genl_info *info,
5304 struct mesh_setup *setup)
5306 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5307 struct nlattr *tb[NL80211_MESH_SETUP_ATTR_MAX + 1];
5309 if (!info->attrs[NL80211_ATTR_MESH_SETUP])
5311 if (nla_parse_nested(tb, NL80211_MESH_SETUP_ATTR_MAX,
5312 info->attrs[NL80211_ATTR_MESH_SETUP],
5313 nl80211_mesh_setup_params_policy))
5316 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])
5317 setup->sync_method =
5318 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_SYNC])) ?
5319 IEEE80211_SYNC_METHOD_VENDOR :
5320 IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET;
5322 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])
5323 setup->path_sel_proto =
5324 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_PATH_SEL])) ?
5325 IEEE80211_PATH_PROTOCOL_VENDOR :
5326 IEEE80211_PATH_PROTOCOL_HWMP;
5328 if (tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])
5329 setup->path_metric =
5330 (nla_get_u8(tb[NL80211_MESH_SETUP_ENABLE_VENDOR_METRIC])) ?
5331 IEEE80211_PATH_METRIC_VENDOR :
5332 IEEE80211_PATH_METRIC_AIRTIME;
5335 if (tb[NL80211_MESH_SETUP_IE]) {
5336 struct nlattr *ieattr =
5337 tb[NL80211_MESH_SETUP_IE];
5338 if (!is_valid_ie_attr(ieattr))
5340 setup->ie = nla_data(ieattr);
5341 setup->ie_len = nla_len(ieattr);
5343 if (tb[NL80211_MESH_SETUP_USERSPACE_MPM] &&
5344 !(rdev->wiphy.features & NL80211_FEATURE_USERSPACE_MPM))
5346 setup->user_mpm = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_MPM]);
5347 setup->is_authenticated = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AUTH]);
5348 setup->is_secure = nla_get_flag(tb[NL80211_MESH_SETUP_USERSPACE_AMPE]);
5349 if (setup->is_secure)
5350 setup->user_mpm = true;
5352 if (tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]) {
5353 if (!setup->user_mpm)
5356 nla_get_u8(tb[NL80211_MESH_SETUP_AUTH_PROTOCOL]);
5362 static int nl80211_update_mesh_config(struct sk_buff *skb,
5363 struct genl_info *info)
5365 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5366 struct net_device *dev = info->user_ptr[1];
5367 struct wireless_dev *wdev = dev->ieee80211_ptr;
5368 struct mesh_config cfg;
5372 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT)
5375 if (!rdev->ops->update_mesh_config)
5378 err = nl80211_parse_mesh_config(info, &cfg, &mask);
5383 if (!wdev->mesh_id_len)
5387 err = rdev_update_mesh_config(rdev, dev, mask, &cfg);
5394 static int nl80211_put_regdom(const struct ieee80211_regdomain *regdom,
5395 struct sk_buff *msg)
5397 struct nlattr *nl_reg_rules;
5400 if (nla_put_string(msg, NL80211_ATTR_REG_ALPHA2, regdom->alpha2) ||
5401 (regdom->dfs_region &&
5402 nla_put_u8(msg, NL80211_ATTR_DFS_REGION, regdom->dfs_region)))
5403 goto nla_put_failure;
5405 nl_reg_rules = nla_nest_start(msg, NL80211_ATTR_REG_RULES);
5407 goto nla_put_failure;
5409 for (i = 0; i < regdom->n_reg_rules; i++) {
5410 struct nlattr *nl_reg_rule;
5411 const struct ieee80211_reg_rule *reg_rule;
5412 const struct ieee80211_freq_range *freq_range;
5413 const struct ieee80211_power_rule *power_rule;
5414 unsigned int max_bandwidth_khz;
5416 reg_rule = ®dom->reg_rules[i];
5417 freq_range = ®_rule->freq_range;
5418 power_rule = ®_rule->power_rule;
5420 nl_reg_rule = nla_nest_start(msg, i);
5422 goto nla_put_failure;
5424 max_bandwidth_khz = freq_range->max_bandwidth_khz;
5425 if (!max_bandwidth_khz)
5426 max_bandwidth_khz = reg_get_max_bandwidth(regdom,
5429 if (nla_put_u32(msg, NL80211_ATTR_REG_RULE_FLAGS,
5431 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_START,
5432 freq_range->start_freq_khz) ||
5433 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_END,
5434 freq_range->end_freq_khz) ||
5435 nla_put_u32(msg, NL80211_ATTR_FREQ_RANGE_MAX_BW,
5436 max_bandwidth_khz) ||
5437 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN,
5438 power_rule->max_antenna_gain) ||
5439 nla_put_u32(msg, NL80211_ATTR_POWER_RULE_MAX_EIRP,
5440 power_rule->max_eirp) ||
5441 nla_put_u32(msg, NL80211_ATTR_DFS_CAC_TIME,
5442 reg_rule->dfs_cac_ms))
5443 goto nla_put_failure;
5445 nla_nest_end(msg, nl_reg_rule);
5448 nla_nest_end(msg, nl_reg_rules);
5455 static int nl80211_get_reg_do(struct sk_buff *skb, struct genl_info *info)
5457 const struct ieee80211_regdomain *regdom = NULL;
5458 struct cfg80211_registered_device *rdev;
5459 struct wiphy *wiphy = NULL;
5460 struct sk_buff *msg;
5463 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
5467 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
5468 NL80211_CMD_GET_REG);
5472 if (info->attrs[NL80211_ATTR_WIPHY]) {
5475 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
5478 return PTR_ERR(rdev);
5481 wiphy = &rdev->wiphy;
5482 self_managed = wiphy->regulatory_flags &
5483 REGULATORY_WIPHY_SELF_MANAGED;
5484 regdom = get_wiphy_regdom(wiphy);
5486 /* a self-managed-reg device must have a private regdom */
5487 if (WARN_ON(!regdom && self_managed)) {
5493 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5494 goto nla_put_failure;
5497 if (!wiphy && reg_last_request_cell_base() &&
5498 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5499 NL80211_USER_REG_HINT_CELL_BASE))
5500 goto nla_put_failure;
5505 regdom = rcu_dereference(cfg80211_regdomain);
5507 if (nl80211_put_regdom(regdom, msg))
5508 goto nla_put_failure_rcu;
5512 genlmsg_end(msg, hdr);
5513 return genlmsg_reply(msg, info);
5515 nla_put_failure_rcu:
5518 genlmsg_cancel(msg, hdr);
5524 static int nl80211_send_regdom(struct sk_buff *msg, struct netlink_callback *cb,
5525 u32 seq, int flags, struct wiphy *wiphy,
5526 const struct ieee80211_regdomain *regdom)
5528 void *hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
5529 NL80211_CMD_GET_REG);
5534 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
5536 if (nl80211_put_regdom(regdom, msg))
5537 goto nla_put_failure;
5539 if (!wiphy && reg_last_request_cell_base() &&
5540 nla_put_u32(msg, NL80211_ATTR_USER_REG_HINT_TYPE,
5541 NL80211_USER_REG_HINT_CELL_BASE))
5542 goto nla_put_failure;
5545 nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
5546 goto nla_put_failure;
5548 if (wiphy && wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
5549 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
5550 goto nla_put_failure;
5552 genlmsg_end(msg, hdr);
5556 genlmsg_cancel(msg, hdr);
5560 static int nl80211_get_reg_dump(struct sk_buff *skb,
5561 struct netlink_callback *cb)
5563 const struct ieee80211_regdomain *regdom = NULL;
5564 struct cfg80211_registered_device *rdev;
5565 int err, reg_idx, start = cb->args[2];
5569 if (cfg80211_regdomain && start == 0) {
5570 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5572 rtnl_dereference(cfg80211_regdomain));
5577 /* the global regdom is idx 0 */
5579 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
5580 regdom = get_wiphy_regdom(&rdev->wiphy);
5584 if (++reg_idx <= start)
5587 err = nl80211_send_regdom(skb, cb, cb->nlh->nlmsg_seq,
5588 NLM_F_MULTI, &rdev->wiphy, regdom);
5595 cb->args[2] = reg_idx;
5602 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
5603 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
5604 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
5605 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
5606 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
5607 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
5608 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
5609 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
5610 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
5613 static int parse_reg_rule(struct nlattr *tb[],
5614 struct ieee80211_reg_rule *reg_rule)
5616 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
5617 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
5619 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
5621 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
5623 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
5625 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
5627 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
5630 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
5632 freq_range->start_freq_khz =
5633 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
5634 freq_range->end_freq_khz =
5635 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
5636 freq_range->max_bandwidth_khz =
5637 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
5639 power_rule->max_eirp =
5640 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
5642 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
5643 power_rule->max_antenna_gain =
5644 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
5646 if (tb[NL80211_ATTR_DFS_CAC_TIME])
5647 reg_rule->dfs_cac_ms =
5648 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
5653 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5655 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5656 struct nlattr *nl_reg_rule;
5658 int rem_reg_rules, r;
5659 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5660 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5661 struct ieee80211_regdomain *rd;
5663 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5666 if (!info->attrs[NL80211_ATTR_REG_RULES])
5669 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5671 if (info->attrs[NL80211_ATTR_DFS_REGION])
5672 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5674 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5677 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5681 if (!reg_is_valid_request(alpha2))
5684 size_of_regd = sizeof(struct ieee80211_regdomain) +
5685 num_rules * sizeof(struct ieee80211_reg_rule);
5687 rd = kzalloc(size_of_regd, GFP_KERNEL);
5691 rd->n_reg_rules = num_rules;
5692 rd->alpha2[0] = alpha2[0];
5693 rd->alpha2[1] = alpha2[1];
5696 * Disable DFS master mode if the DFS region was
5697 * not supported or known on this kernel.
5699 if (reg_supported_dfs_region(dfs_region))
5700 rd->dfs_region = dfs_region;
5702 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5704 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5705 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5709 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5715 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5721 r = set_regdom(rd, REGD_SOURCE_CRDA);
5722 /* set_regdom took ownership */
5729 #endif /* CONFIG_CFG80211_CRDA_SUPPORT */
5731 static int validate_scan_freqs(struct nlattr *freqs)
5733 struct nlattr *attr1, *attr2;
5734 int n_channels = 0, tmp1, tmp2;
5736 nla_for_each_nested(attr1, freqs, tmp1) {
5739 * Some hardware has a limited channel list for
5740 * scanning, and it is pretty much nonsensical
5741 * to scan for a channel twice, so disallow that
5742 * and don't require drivers to check that the
5743 * channel list they get isn't longer than what
5744 * they can scan, as long as they can scan all
5745 * the channels they registered at once.
5747 nla_for_each_nested(attr2, freqs, tmp2)
5748 if (attr1 != attr2 &&
5749 nla_get_u32(attr1) == nla_get_u32(attr2))
5756 static int nl80211_parse_random_mac(struct nlattr **attrs,
5757 u8 *mac_addr, u8 *mac_addr_mask)
5761 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5762 eth_zero_addr(mac_addr);
5763 eth_zero_addr(mac_addr_mask);
5765 mac_addr_mask[0] = 0x3;
5770 /* need both or none */
5771 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5774 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5775 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5777 /* don't allow or configure an mcast address */
5778 if (!is_multicast_ether_addr(mac_addr_mask) ||
5779 is_multicast_ether_addr(mac_addr))
5783 * allow users to pass a MAC address that has bits set outside
5784 * of the mask, but don't bother drivers with having to deal
5787 for (i = 0; i < ETH_ALEN; i++)
5788 mac_addr[i] &= mac_addr_mask[i];
5793 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5796 struct wireless_dev *wdev = info->user_ptr[1];
5797 struct cfg80211_scan_request *request;
5798 struct nlattr *attr;
5799 struct wiphy *wiphy;
5800 int err, tmp, n_ssids = 0, n_channels, i;
5803 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5806 wiphy = &rdev->wiphy;
5808 if (!rdev->ops->scan)
5811 if (rdev->scan_req || rdev->scan_msg) {
5816 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5817 n_channels = validate_scan_freqs(
5818 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5824 n_channels = ieee80211_get_num_supported_channels(wiphy);
5827 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5828 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5831 if (n_ssids > wiphy->max_scan_ssids) {
5836 if (info->attrs[NL80211_ATTR_IE])
5837 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5841 if (ie_len > wiphy->max_scan_ie_len) {
5846 request = kzalloc(sizeof(*request)
5847 + sizeof(*request->ssids) * n_ssids
5848 + sizeof(*request->channels) * n_channels
5849 + ie_len, GFP_KERNEL);
5856 request->ssids = (void *)&request->channels[n_channels];
5857 request->n_ssids = n_ssids;
5860 request->ie = (void *)(request->ssids + n_ssids);
5862 request->ie = (void *)(request->channels + n_channels);
5866 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5867 /* user specified, bail out if channel not found */
5868 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5869 struct ieee80211_channel *chan;
5871 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5878 /* ignore disabled channels */
5879 if (chan->flags & IEEE80211_CHAN_DISABLED)
5882 request->channels[i] = chan;
5886 enum ieee80211_band band;
5889 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5891 if (!wiphy->bands[band])
5893 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5894 struct ieee80211_channel *chan;
5896 chan = &wiphy->bands[band]->channels[j];
5898 if (chan->flags & IEEE80211_CHAN_DISABLED)
5901 request->channels[i] = chan;
5912 request->n_channels = i;
5916 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5917 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5921 request->ssids[i].ssid_len = nla_len(attr);
5922 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5927 if (info->attrs[NL80211_ATTR_IE]) {
5928 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5929 memcpy((void *)request->ie,
5930 nla_data(info->attrs[NL80211_ATTR_IE]),
5934 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5935 if (wiphy->bands[i])
5937 (1 << wiphy->bands[i]->n_bitrates) - 1;
5939 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5940 nla_for_each_nested(attr,
5941 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5943 enum ieee80211_band band = nla_type(attr);
5945 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5950 if (!wiphy->bands[band])
5953 err = ieee80211_get_ratemask(wiphy->bands[band],
5956 &request->rates[band]);
5962 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5963 request->flags = nla_get_u32(
5964 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5965 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5966 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5971 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5972 if (!(wiphy->features &
5973 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5978 if (wdev->current_bss) {
5983 err = nl80211_parse_random_mac(info->attrs,
5985 request->mac_addr_mask);
5992 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5994 request->wdev = wdev;
5995 request->wiphy = &rdev->wiphy;
5996 request->scan_start = jiffies;
5998 rdev->scan_req = request;
5999 err = rdev_scan(rdev, request);
6002 nl80211_send_scan_start(rdev, wdev);
6004 dev_hold(wdev->netdev);
6007 rdev->scan_req = NULL;
6015 static int nl80211_abort_scan(struct sk_buff *skb, struct genl_info *info)
6017 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6018 struct wireless_dev *wdev = info->user_ptr[1];
6020 if (!rdev->ops->abort_scan)
6026 if (!rdev->scan_req)
6029 rdev_abort_scan(rdev, wdev);
6034 nl80211_parse_sched_scan_plans(struct wiphy *wiphy, int n_plans,
6035 struct cfg80211_sched_scan_request *request,
6036 struct nlattr **attrs)
6038 int tmp, err, i = 0;
6039 struct nlattr *attr;
6041 if (!attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6045 * If scan plans are not specified,
6046 * %NL80211_ATTR_SCHED_SCAN_INTERVAL must be specified. In this
6047 * case one scan plan will be set with the specified scan
6048 * interval and infinite number of iterations.
6050 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6053 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
6057 request->scan_plans[0].interval =
6058 DIV_ROUND_UP(interval, MSEC_PER_SEC);
6059 if (!request->scan_plans[0].interval)
6062 if (request->scan_plans[0].interval >
6063 wiphy->max_sched_scan_plan_interval)
6064 request->scan_plans[0].interval =
6065 wiphy->max_sched_scan_plan_interval;
6070 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp) {
6071 struct nlattr *plan[NL80211_SCHED_SCAN_PLAN_MAX + 1];
6073 if (WARN_ON(i >= n_plans))
6076 err = nla_parse(plan, NL80211_SCHED_SCAN_PLAN_MAX,
6077 nla_data(attr), nla_len(attr),
6078 nl80211_plan_policy);
6082 if (!plan[NL80211_SCHED_SCAN_PLAN_INTERVAL])
6085 request->scan_plans[i].interval =
6086 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_INTERVAL]);
6087 if (!request->scan_plans[i].interval ||
6088 request->scan_plans[i].interval >
6089 wiphy->max_sched_scan_plan_interval)
6092 if (plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]) {
6093 request->scan_plans[i].iterations =
6094 nla_get_u32(plan[NL80211_SCHED_SCAN_PLAN_ITERATIONS]);
6095 if (!request->scan_plans[i].iterations ||
6096 (request->scan_plans[i].iterations >
6097 wiphy->max_sched_scan_plan_iterations))
6099 } else if (i < n_plans - 1) {
6101 * All scan plans but the last one must specify
6102 * a finite number of iterations
6111 * The last scan plan must not specify the number of
6112 * iterations, it is supposed to run infinitely
6114 if (request->scan_plans[n_plans - 1].iterations)
6120 static struct cfg80211_sched_scan_request *
6121 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
6122 struct nlattr **attrs)
6124 struct cfg80211_sched_scan_request *request;
6125 struct nlattr *attr;
6126 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i, n_plans = 0;
6127 enum ieee80211_band band;
6129 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
6130 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
6132 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
6133 return ERR_PTR(-EINVAL);
6135 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6136 n_channels = validate_scan_freqs(
6137 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
6139 return ERR_PTR(-EINVAL);
6141 n_channels = ieee80211_get_num_supported_channels(wiphy);
6144 if (attrs[NL80211_ATTR_SCAN_SSIDS])
6145 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6149 if (n_ssids > wiphy->max_sched_scan_ssids)
6150 return ERR_PTR(-EINVAL);
6153 * First, count the number of 'real' matchsets. Due to an issue with
6154 * the old implementation, matchsets containing only the RSSI attribute
6155 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6156 * RSSI for all matchsets, rather than their own matchset for reporting
6157 * all APs with a strong RSSI. This is needed to be compatible with
6158 * older userspace that treated a matchset with only the RSSI as the
6159 * global RSSI for all other matchsets - if there are other matchsets.
6161 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6162 nla_for_each_nested(attr,
6163 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6165 struct nlattr *rssi;
6167 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6168 nla_data(attr), nla_len(attr),
6169 nl80211_match_policy);
6171 return ERR_PTR(err);
6172 /* add other standalone attributes here */
6173 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6177 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6179 default_match_rssi = nla_get_s32(rssi);
6183 /* However, if there's no other matchset, add the RSSI one */
6184 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6187 if (n_match_sets > wiphy->max_match_sets)
6188 return ERR_PTR(-EINVAL);
6190 if (attrs[NL80211_ATTR_IE])
6191 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6195 if (ie_len > wiphy->max_sched_scan_ie_len)
6196 return ERR_PTR(-EINVAL);
6198 if (attrs[NL80211_ATTR_SCHED_SCAN_PLANS]) {
6200 * NL80211_ATTR_SCHED_SCAN_INTERVAL must not be specified since
6201 * each scan plan already specifies its own interval
6203 if (attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6204 return ERR_PTR(-EINVAL);
6206 nla_for_each_nested(attr,
6207 attrs[NL80211_ATTR_SCHED_SCAN_PLANS], tmp)
6211 * The scan interval attribute is kept for backward
6212 * compatibility. If no scan plans are specified and sched scan
6213 * interval is specified, one scan plan will be set with this
6214 * scan interval and infinite number of iterations.
6216 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
6217 return ERR_PTR(-EINVAL);
6222 if (!n_plans || n_plans > wiphy->max_sched_scan_plans)
6223 return ERR_PTR(-EINVAL);
6225 request = kzalloc(sizeof(*request)
6226 + sizeof(*request->ssids) * n_ssids
6227 + sizeof(*request->match_sets) * n_match_sets
6228 + sizeof(*request->scan_plans) * n_plans
6229 + sizeof(*request->channels) * n_channels
6230 + ie_len, GFP_KERNEL);
6232 return ERR_PTR(-ENOMEM);
6235 request->ssids = (void *)&request->channels[n_channels];
6236 request->n_ssids = n_ssids;
6239 request->ie = (void *)(request->ssids + n_ssids);
6241 request->ie = (void *)(request->channels + n_channels);
6246 request->match_sets = (void *)(request->ie + ie_len);
6248 request->match_sets =
6249 (void *)(request->ssids + n_ssids);
6251 request->match_sets =
6252 (void *)(request->channels + n_channels);
6254 request->n_match_sets = n_match_sets;
6257 request->scan_plans = (void *)(request->match_sets +
6259 else if (request->ie)
6260 request->scan_plans = (void *)(request->ie + ie_len);
6262 request->scan_plans = (void *)(request->ssids + n_ssids);
6264 request->scan_plans = (void *)(request->channels + n_channels);
6266 request->n_scan_plans = n_plans;
6269 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6270 /* user specified, bail out if channel not found */
6271 nla_for_each_nested(attr,
6272 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6274 struct ieee80211_channel *chan;
6276 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6283 /* ignore disabled channels */
6284 if (chan->flags & IEEE80211_CHAN_DISABLED)
6287 request->channels[i] = chan;
6292 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6294 if (!wiphy->bands[band])
6296 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6297 struct ieee80211_channel *chan;
6299 chan = &wiphy->bands[band]->channels[j];
6301 if (chan->flags & IEEE80211_CHAN_DISABLED)
6304 request->channels[i] = chan;
6315 request->n_channels = i;
6319 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6321 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6325 request->ssids[i].ssid_len = nla_len(attr);
6326 memcpy(request->ssids[i].ssid, nla_data(attr),
6333 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6334 nla_for_each_nested(attr,
6335 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6337 struct nlattr *ssid, *rssi;
6339 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6340 nla_data(attr), nla_len(attr),
6341 nl80211_match_policy);
6344 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6346 if (WARN_ON(i >= n_match_sets)) {
6347 /* this indicates a programming error,
6348 * the loop above should have verified
6355 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6359 memcpy(request->match_sets[i].ssid.ssid,
6360 nla_data(ssid), nla_len(ssid));
6361 request->match_sets[i].ssid.ssid_len =
6363 /* special attribute - old implemenation w/a */
6364 request->match_sets[i].rssi_thold =
6366 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6368 request->match_sets[i].rssi_thold =
6374 /* there was no other matchset, so the RSSI one is alone */
6375 if (i == 0 && n_match_sets)
6376 request->match_sets[0].rssi_thold = default_match_rssi;
6378 request->min_rssi_thold = INT_MAX;
6379 for (i = 0; i < n_match_sets; i++)
6380 request->min_rssi_thold =
6381 min(request->match_sets[i].rssi_thold,
6382 request->min_rssi_thold);
6384 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6388 request->ie_len = ie_len;
6389 memcpy((void *)request->ie,
6390 nla_data(attrs[NL80211_ATTR_IE]),
6394 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6395 request->flags = nla_get_u32(
6396 attrs[NL80211_ATTR_SCAN_FLAGS]);
6397 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6398 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6403 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6404 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6406 if (!wdev) /* must be net-detect */
6407 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6409 if (!(wiphy->features & flg)) {
6414 if (wdev && wdev->current_bss) {
6419 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6420 request->mac_addr_mask);
6426 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6428 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6430 err = nl80211_parse_sched_scan_plans(wiphy, n_plans, request, attrs);
6434 request->scan_start = jiffies;
6440 return ERR_PTR(err);
6443 static int nl80211_start_sched_scan(struct sk_buff *skb,
6444 struct genl_info *info)
6446 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6447 struct net_device *dev = info->user_ptr[1];
6448 struct wireless_dev *wdev = dev->ieee80211_ptr;
6449 struct cfg80211_sched_scan_request *sched_scan_req;
6452 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6453 !rdev->ops->sched_scan_start)
6456 if (rdev->sched_scan_req)
6457 return -EINPROGRESS;
6459 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6462 err = PTR_ERR_OR_ZERO(sched_scan_req);
6466 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6470 sched_scan_req->dev = dev;
6471 sched_scan_req->wiphy = &rdev->wiphy;
6473 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6474 sched_scan_req->owner_nlportid = info->snd_portid;
6476 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6478 nl80211_send_sched_scan(rdev, dev,
6479 NL80211_CMD_START_SCHED_SCAN);
6483 kfree(sched_scan_req);
6488 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6489 struct genl_info *info)
6491 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6493 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6494 !rdev->ops->sched_scan_stop)
6497 return __cfg80211_stop_sched_scan(rdev, false);
6500 static int nl80211_start_radar_detection(struct sk_buff *skb,
6501 struct genl_info *info)
6503 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6504 struct net_device *dev = info->user_ptr[1];
6505 struct wireless_dev *wdev = dev->ieee80211_ptr;
6506 struct cfg80211_chan_def chandef;
6507 enum nl80211_dfs_regions dfs_region;
6508 unsigned int cac_time_ms;
6511 dfs_region = reg_get_dfs_region(wdev->wiphy);
6512 if (dfs_region == NL80211_DFS_UNSET)
6515 err = nl80211_parse_chandef(rdev, info, &chandef);
6519 if (netif_carrier_ok(dev))
6522 if (wdev->cac_started)
6525 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6533 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6536 if (!rdev->ops->start_radar_detection)
6539 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6540 if (WARN_ON(!cac_time_ms))
6541 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6543 err = rdev_start_radar_detection(rdev, dev, &chandef, cac_time_ms);
6545 wdev->chandef = chandef;
6546 wdev->cac_started = true;
6547 wdev->cac_start_time = jiffies;
6548 wdev->cac_time_ms = cac_time_ms;
6553 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6555 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6556 struct net_device *dev = info->user_ptr[1];
6557 struct wireless_dev *wdev = dev->ieee80211_ptr;
6558 struct cfg80211_csa_settings params;
6559 /* csa_attrs is defined static to avoid waste of stack size - this
6560 * function is called under RTNL lock, so this should not be a problem.
6562 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6564 bool need_new_beacon = false;
6568 if (!rdev->ops->channel_switch ||
6569 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6572 switch (dev->ieee80211_ptr->iftype) {
6573 case NL80211_IFTYPE_AP:
6574 case NL80211_IFTYPE_P2P_GO:
6575 need_new_beacon = true;
6577 /* useless if AP is not running */
6578 if (!wdev->beacon_interval)
6581 case NL80211_IFTYPE_ADHOC:
6582 if (!wdev->ssid_len)
6585 case NL80211_IFTYPE_MESH_POINT:
6586 if (!wdev->mesh_id_len)
6593 memset(¶ms, 0, sizeof(params));
6595 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6596 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6599 /* only important for AP, IBSS and mesh create IEs internally */
6600 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6603 /* Even though the attribute is u32, the specification says
6604 * u8, so let's make sure we don't overflow.
6606 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6610 params.count = cs_count;
6612 if (!need_new_beacon)
6615 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6619 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6620 info->attrs[NL80211_ATTR_CSA_IES],
6625 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6629 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6632 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6633 if (!len || (len % sizeof(u16)))
6636 params.n_counter_offsets_beacon = len / sizeof(u16);
6637 if (rdev->wiphy.max_num_csa_counters &&
6638 (params.n_counter_offsets_beacon >
6639 rdev->wiphy.max_num_csa_counters))
6642 params.counter_offsets_beacon =
6643 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6645 /* sanity checks - counters should fit and be the same */
6646 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6647 u16 offset = params.counter_offsets_beacon[i];
6649 if (offset >= params.beacon_csa.tail_len)
6652 if (params.beacon_csa.tail[offset] != params.count)
6656 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6657 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6658 if (!len || (len % sizeof(u16)))
6661 params.n_counter_offsets_presp = len / sizeof(u16);
6662 if (rdev->wiphy.max_num_csa_counters &&
6663 (params.n_counter_offsets_beacon >
6664 rdev->wiphy.max_num_csa_counters))
6667 params.counter_offsets_presp =
6668 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6670 /* sanity checks - counters should fit and be the same */
6671 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6672 u16 offset = params.counter_offsets_presp[i];
6674 if (offset >= params.beacon_csa.probe_resp_len)
6677 if (params.beacon_csa.probe_resp[offset] !=
6684 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6688 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6692 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6699 params.radar_required = true;
6701 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6702 params.block_tx = true;
6705 err = rdev_channel_switch(rdev, dev, ¶ms);
6711 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6713 struct cfg80211_registered_device *rdev,
6714 struct wireless_dev *wdev,
6715 struct cfg80211_internal_bss *intbss)
6717 struct cfg80211_bss *res = &intbss->pub;
6718 const struct cfg80211_bss_ies *ies;
6722 ASSERT_WDEV_LOCK(wdev);
6724 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6725 NL80211_CMD_NEW_SCAN_RESULTS);
6729 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6731 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6732 goto nla_put_failure;
6734 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6735 goto nla_put_failure;
6736 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6737 goto nla_put_failure;
6739 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6741 goto nla_put_failure;
6742 if ((!is_zero_ether_addr(res->bssid) &&
6743 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6744 goto nla_put_failure;
6747 /* indicate whether we have probe response data or not */
6748 if (rcu_access_pointer(res->proberesp_ies) &&
6749 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6750 goto fail_unlock_rcu;
6752 /* this pointer prefers to be pointed to probe response data
6753 * but is always valid
6755 ies = rcu_dereference(res->ies);
6757 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6758 goto fail_unlock_rcu;
6759 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6760 ies->len, ies->data))
6761 goto fail_unlock_rcu;
6764 /* and this pointer is always (unless driver didn't know) beacon data */
6765 ies = rcu_dereference(res->beacon_ies);
6766 if (ies && ies->from_beacon) {
6767 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6768 goto fail_unlock_rcu;
6769 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6770 ies->len, ies->data))
6771 goto fail_unlock_rcu;
6775 if (res->beacon_interval &&
6776 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6777 goto nla_put_failure;
6778 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6779 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6780 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6781 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6782 jiffies_to_msecs(jiffies - intbss->ts)))
6783 goto nla_put_failure;
6785 if (intbss->ts_boottime &&
6786 nla_put_u64(msg, NL80211_BSS_LAST_SEEN_BOOTTIME,
6787 intbss->ts_boottime))
6788 goto nla_put_failure;
6790 switch (rdev->wiphy.signal_type) {
6791 case CFG80211_SIGNAL_TYPE_MBM:
6792 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6793 goto nla_put_failure;
6795 case CFG80211_SIGNAL_TYPE_UNSPEC:
6796 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6797 goto nla_put_failure;
6803 switch (wdev->iftype) {
6804 case NL80211_IFTYPE_P2P_CLIENT:
6805 case NL80211_IFTYPE_STATION:
6806 if (intbss == wdev->current_bss &&
6807 nla_put_u32(msg, NL80211_BSS_STATUS,
6808 NL80211_BSS_STATUS_ASSOCIATED))
6809 goto nla_put_failure;
6811 case NL80211_IFTYPE_ADHOC:
6812 if (intbss == wdev->current_bss &&
6813 nla_put_u32(msg, NL80211_BSS_STATUS,
6814 NL80211_BSS_STATUS_IBSS_JOINED))
6815 goto nla_put_failure;
6821 nla_nest_end(msg, bss);
6823 genlmsg_end(msg, hdr);
6829 genlmsg_cancel(msg, hdr);
6833 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6835 struct cfg80211_registered_device *rdev;
6836 struct cfg80211_internal_bss *scan;
6837 struct wireless_dev *wdev;
6838 int start = cb->args[2], idx = 0;
6841 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6846 spin_lock_bh(&rdev->bss_lock);
6847 cfg80211_bss_expire(rdev);
6849 cb->seq = rdev->bss_generation;
6851 list_for_each_entry(scan, &rdev->bss_list, list) {
6854 if (nl80211_send_bss(skb, cb,
6855 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6856 rdev, wdev, scan) < 0) {
6862 spin_unlock_bh(&rdev->bss_lock);
6866 nl80211_finish_wdev_dump(rdev);
6871 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6872 int flags, struct net_device *dev,
6873 bool allow_radio_stats,
6874 struct survey_info *survey)
6877 struct nlattr *infoattr;
6879 /* skip radio stats if userspace didn't request them */
6880 if (!survey->channel && !allow_radio_stats)
6883 hdr = nl80211hdr_put(msg, portid, seq, flags,
6884 NL80211_CMD_NEW_SURVEY_RESULTS);
6888 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6889 goto nla_put_failure;
6891 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6893 goto nla_put_failure;
6895 if (survey->channel &&
6896 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6897 survey->channel->center_freq))
6898 goto nla_put_failure;
6900 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6901 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6902 goto nla_put_failure;
6903 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6904 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6905 goto nla_put_failure;
6906 if ((survey->filled & SURVEY_INFO_TIME) &&
6907 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6909 goto nla_put_failure;
6910 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6911 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6913 goto nla_put_failure;
6914 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6915 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6916 survey->time_ext_busy))
6917 goto nla_put_failure;
6918 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6919 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6921 goto nla_put_failure;
6922 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6923 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6925 goto nla_put_failure;
6926 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6927 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6929 goto nla_put_failure;
6931 nla_nest_end(msg, infoattr);
6933 genlmsg_end(msg, hdr);
6937 genlmsg_cancel(msg, hdr);
6941 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
6943 struct survey_info survey;
6944 struct cfg80211_registered_device *rdev;
6945 struct wireless_dev *wdev;
6946 int survey_idx = cb->args[2];
6950 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6954 /* prepare_wdev_dump parsed the attributes */
6955 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6957 if (!wdev->netdev) {
6962 if (!rdev->ops->dump_survey) {
6968 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6974 /* don't send disabled channels, but do send non-channel data */
6975 if (survey.channel &&
6976 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
6981 if (nl80211_send_survey(skb,
6982 NETLINK_CB(cb->skb).portid,
6983 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6984 wdev->netdev, radio_stats, &survey) < 0)
6990 cb->args[2] = survey_idx;
6993 nl80211_finish_wdev_dump(rdev);
6997 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6999 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
7000 NL80211_WPA_VERSION_2));
7003 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
7005 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7006 struct net_device *dev = info->user_ptr[1];
7007 struct ieee80211_channel *chan;
7008 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
7009 int err, ssid_len, ie_len = 0, sae_data_len = 0;
7010 enum nl80211_auth_type auth_type;
7011 struct key_parse key;
7012 bool local_state_change;
7014 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7017 if (!info->attrs[NL80211_ATTR_MAC])
7020 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
7023 if (!info->attrs[NL80211_ATTR_SSID])
7026 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
7029 err = nl80211_parse_key(info, &key);
7034 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
7036 if (!key.p.key || !key.p.key_len)
7038 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
7039 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
7040 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
7041 key.p.key_len != WLAN_KEY_LEN_WEP104))
7053 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
7054 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
7063 if (!rdev->ops->auth)
7066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7067 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7070 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7071 chan = nl80211_get_valid_chan(&rdev->wiphy,
7072 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7076 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7077 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7079 if (info->attrs[NL80211_ATTR_IE]) {
7080 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7081 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7084 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7085 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
7088 if (auth_type == NL80211_AUTHTYPE_SAE &&
7089 !info->attrs[NL80211_ATTR_SAE_DATA])
7092 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
7093 if (auth_type != NL80211_AUTHTYPE_SAE)
7095 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
7096 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
7097 /* need to include at least Auth Transaction and Status Code */
7098 if (sae_data_len < 4)
7102 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7105 * Since we no longer track auth state, ignore
7106 * requests to only change local state.
7108 if (local_state_change)
7111 wdev_lock(dev->ieee80211_ptr);
7112 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
7113 ssid, ssid_len, ie, ie_len,
7114 key.p.key, key.p.key_len, key.idx,
7115 sae_data, sae_data_len);
7116 wdev_unlock(dev->ieee80211_ptr);
7120 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
7121 struct genl_info *info,
7122 struct cfg80211_crypto_settings *settings,
7125 memset(settings, 0, sizeof(*settings));
7127 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
7129 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
7131 proto = nla_get_u16(
7132 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
7133 settings->control_port_ethertype = cpu_to_be16(proto);
7134 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
7137 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
7138 settings->control_port_no_encrypt = true;
7140 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
7142 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
7146 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7147 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
7148 settings->n_ciphers_pairwise = len / sizeof(u32);
7150 if (len % sizeof(u32))
7153 if (settings->n_ciphers_pairwise > cipher_limit)
7156 memcpy(settings->ciphers_pairwise, data, len);
7158 for (i = 0; i < settings->n_ciphers_pairwise; i++)
7159 if (!cfg80211_supported_cipher_suite(
7161 settings->ciphers_pairwise[i]))
7165 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
7166 settings->cipher_group =
7167 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
7168 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
7169 settings->cipher_group))
7173 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
7174 settings->wpa_versions =
7175 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
7176 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
7180 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
7184 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
7185 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
7186 settings->n_akm_suites = len / sizeof(u32);
7188 if (len % sizeof(u32))
7191 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
7194 memcpy(settings->akm_suites, data, len);
7200 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7202 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7203 struct net_device *dev = info->user_ptr[1];
7204 struct ieee80211_channel *chan;
7205 struct cfg80211_assoc_request req = {};
7206 const u8 *bssid, *ssid;
7207 int err, ssid_len = 0;
7209 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7212 if (!info->attrs[NL80211_ATTR_MAC] ||
7213 !info->attrs[NL80211_ATTR_SSID] ||
7214 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7217 if (!rdev->ops->assoc)
7220 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7221 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7224 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7226 chan = nl80211_get_valid_chan(&rdev->wiphy,
7227 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7231 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7232 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7234 if (info->attrs[NL80211_ATTR_IE]) {
7235 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7236 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7239 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7240 enum nl80211_mfp mfp =
7241 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7242 if (mfp == NL80211_MFP_REQUIRED)
7244 else if (mfp != NL80211_MFP_NO)
7248 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7249 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7251 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7252 req.flags |= ASSOC_REQ_DISABLE_HT;
7254 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7255 memcpy(&req.ht_capa_mask,
7256 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7257 sizeof(req.ht_capa_mask));
7259 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7260 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7262 memcpy(&req.ht_capa,
7263 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7264 sizeof(req.ht_capa));
7267 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7268 req.flags |= ASSOC_REQ_DISABLE_VHT;
7270 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7271 memcpy(&req.vht_capa_mask,
7272 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7273 sizeof(req.vht_capa_mask));
7275 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7276 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7278 memcpy(&req.vht_capa,
7279 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7280 sizeof(req.vht_capa));
7283 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7284 if (!(rdev->wiphy.features &
7285 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7286 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7288 req.flags |= ASSOC_REQ_USE_RRM;
7291 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7293 wdev_lock(dev->ieee80211_ptr);
7294 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7295 ssid, ssid_len, &req);
7296 wdev_unlock(dev->ieee80211_ptr);
7302 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7304 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7305 struct net_device *dev = info->user_ptr[1];
7306 const u8 *ie = NULL, *bssid;
7307 int ie_len = 0, err;
7309 bool local_state_change;
7311 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7314 if (!info->attrs[NL80211_ATTR_MAC])
7317 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7320 if (!rdev->ops->deauth)
7323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7324 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7327 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7329 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7330 if (reason_code == 0) {
7331 /* Reason Code 0 is reserved */
7335 if (info->attrs[NL80211_ATTR_IE]) {
7336 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7337 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7340 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7342 wdev_lock(dev->ieee80211_ptr);
7343 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7344 local_state_change);
7345 wdev_unlock(dev->ieee80211_ptr);
7349 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7351 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7352 struct net_device *dev = info->user_ptr[1];
7353 const u8 *ie = NULL, *bssid;
7354 int ie_len = 0, err;
7356 bool local_state_change;
7358 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7361 if (!info->attrs[NL80211_ATTR_MAC])
7364 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7367 if (!rdev->ops->disassoc)
7370 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7371 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7374 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7376 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7377 if (reason_code == 0) {
7378 /* Reason Code 0 is reserved */
7382 if (info->attrs[NL80211_ATTR_IE]) {
7383 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7384 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7387 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7389 wdev_lock(dev->ieee80211_ptr);
7390 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7391 local_state_change);
7392 wdev_unlock(dev->ieee80211_ptr);
7397 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7398 int mcast_rate[IEEE80211_NUM_BANDS],
7401 struct wiphy *wiphy = &rdev->wiphy;
7405 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7406 struct ieee80211_supported_band *sband;
7408 sband = wiphy->bands[band];
7412 for (i = 0; i < sband->n_bitrates; i++) {
7413 if (sband->bitrates[i].bitrate == rateval) {
7414 mcast_rate[band] = i + 1;
7424 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7426 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7427 struct net_device *dev = info->user_ptr[1];
7428 struct cfg80211_ibss_params ibss;
7429 struct wiphy *wiphy;
7430 struct cfg80211_cached_keys *connkeys = NULL;
7433 memset(&ibss, 0, sizeof(ibss));
7435 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7438 if (!info->attrs[NL80211_ATTR_SSID] ||
7439 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7442 ibss.beacon_interval = 100;
7444 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7445 ibss.beacon_interval =
7446 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7447 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7451 if (!rdev->ops->join_ibss)
7454 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7457 wiphy = &rdev->wiphy;
7459 if (info->attrs[NL80211_ATTR_MAC]) {
7460 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7462 if (!is_valid_ether_addr(ibss.bssid))
7465 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7466 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7468 if (info->attrs[NL80211_ATTR_IE]) {
7469 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7470 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7473 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7477 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7478 NL80211_IFTYPE_ADHOC))
7481 switch (ibss.chandef.width) {
7482 case NL80211_CHAN_WIDTH_5:
7483 case NL80211_CHAN_WIDTH_10:
7484 case NL80211_CHAN_WIDTH_20_NOHT:
7486 case NL80211_CHAN_WIDTH_20:
7487 case NL80211_CHAN_WIDTH_40:
7488 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7491 case NL80211_CHAN_WIDTH_80:
7492 case NL80211_CHAN_WIDTH_80P80:
7493 case NL80211_CHAN_WIDTH_160:
7494 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7496 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7497 NL80211_EXT_FEATURE_VHT_IBSS))
7504 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7505 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7507 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7509 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7511 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7512 struct ieee80211_supported_band *sband =
7513 wiphy->bands[ibss.chandef.chan->band];
7515 err = ieee80211_get_ratemask(sband, rates, n_rates,
7521 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7522 memcpy(&ibss.ht_capa_mask,
7523 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7524 sizeof(ibss.ht_capa_mask));
7526 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7527 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7529 memcpy(&ibss.ht_capa,
7530 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7531 sizeof(ibss.ht_capa));
7534 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7535 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7536 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7539 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7542 connkeys = nl80211_parse_connkeys(rdev,
7543 info->attrs[NL80211_ATTR_KEYS],
7545 if (IS_ERR(connkeys))
7546 return PTR_ERR(connkeys);
7548 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7556 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7558 ibss.userspace_handles_dfs =
7559 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7561 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7567 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7569 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7570 struct net_device *dev = info->user_ptr[1];
7572 if (!rdev->ops->leave_ibss)
7575 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7578 return cfg80211_leave_ibss(rdev, dev, false);
7581 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7583 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7584 struct net_device *dev = info->user_ptr[1];
7585 int mcast_rate[IEEE80211_NUM_BANDS];
7589 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7590 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7591 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7594 if (!rdev->ops->set_mcast_rate)
7597 memset(mcast_rate, 0, sizeof(mcast_rate));
7599 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7602 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7603 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7606 err = rdev_set_mcast_rate(rdev, dev, mcast_rate);
7611 static struct sk_buff *
7612 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7613 struct wireless_dev *wdev, int approxlen,
7614 u32 portid, u32 seq, enum nl80211_commands cmd,
7615 enum nl80211_attrs attr,
7616 const struct nl80211_vendor_cmd_info *info,
7619 struct sk_buff *skb;
7621 struct nlattr *data;
7623 skb = nlmsg_new(approxlen + 100, gfp);
7627 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7633 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7634 goto nla_put_failure;
7637 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7639 goto nla_put_failure;
7640 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7642 goto nla_put_failure;
7646 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7648 goto nla_put_failure;
7650 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7651 wdev->netdev->ifindex))
7652 goto nla_put_failure;
7655 data = nla_nest_start(skb, attr);
7657 ((void **)skb->cb)[0] = rdev;
7658 ((void **)skb->cb)[1] = hdr;
7659 ((void **)skb->cb)[2] = data;
7668 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7669 struct wireless_dev *wdev,
7670 enum nl80211_commands cmd,
7671 enum nl80211_attrs attr,
7672 int vendor_event_idx,
7673 int approxlen, gfp_t gfp)
7675 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7676 const struct nl80211_vendor_cmd_info *info;
7679 case NL80211_CMD_TESTMODE:
7680 if (WARN_ON(vendor_event_idx != -1))
7684 case NL80211_CMD_VENDOR:
7685 if (WARN_ON(vendor_event_idx < 0 ||
7686 vendor_event_idx >= wiphy->n_vendor_events))
7688 info = &wiphy->vendor_events[vendor_event_idx];
7695 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
7696 cmd, attr, info, gfp);
7698 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7700 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7702 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7703 void *hdr = ((void **)skb->cb)[1];
7704 struct nlattr *data = ((void **)skb->cb)[2];
7705 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7707 /* clear CB data for netlink core to own from now on */
7708 memset(skb->cb, 0, sizeof(skb->cb));
7710 nla_nest_end(skb, data);
7711 genlmsg_end(skb, hdr);
7713 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7714 mcgrp = NL80211_MCGRP_VENDOR;
7716 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7719 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7721 #ifdef CONFIG_NL80211_TESTMODE
7722 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7724 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7725 struct wireless_dev *wdev =
7726 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7729 if (!rdev->ops->testmode_cmd)
7733 err = PTR_ERR(wdev);
7737 } else if (wdev->wiphy != &rdev->wiphy) {
7741 if (!info->attrs[NL80211_ATTR_TESTDATA])
7744 rdev->cur_cmd_info = info;
7745 err = rdev_testmode_cmd(rdev, wdev,
7746 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7747 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7748 rdev->cur_cmd_info = NULL;
7753 static int nl80211_testmode_dump(struct sk_buff *skb,
7754 struct netlink_callback *cb)
7756 struct cfg80211_registered_device *rdev;
7766 * 0 is a valid index, but not valid for args[0],
7767 * so we need to offset by 1.
7769 phy_idx = cb->args[0] - 1;
7771 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7772 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7777 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7778 nl80211_fam.attrbuf);
7780 err = PTR_ERR(rdev);
7783 phy_idx = rdev->wiphy_idx;
7786 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7788 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7792 data = nla_data((void *)cb->args[1]);
7793 data_len = nla_len((void *)cb->args[1]);
7796 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7802 if (!rdev->ops->testmode_dump) {
7808 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7809 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7810 NL80211_CMD_TESTMODE);
7811 struct nlattr *tmdata;
7816 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7817 genlmsg_cancel(skb, hdr);
7821 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7823 genlmsg_cancel(skb, hdr);
7826 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7827 nla_nest_end(skb, tmdata);
7829 if (err == -ENOBUFS || err == -ENOENT) {
7830 genlmsg_cancel(skb, hdr);
7833 genlmsg_cancel(skb, hdr);
7837 genlmsg_end(skb, hdr);
7842 cb->args[0] = phy_idx + 1;
7849 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7852 struct net_device *dev = info->user_ptr[1];
7853 struct cfg80211_connect_params connect;
7854 struct wiphy *wiphy;
7855 struct cfg80211_cached_keys *connkeys = NULL;
7858 memset(&connect, 0, sizeof(connect));
7860 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7863 if (!info->attrs[NL80211_ATTR_SSID] ||
7864 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7867 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7869 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7870 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7871 NL80211_CMD_CONNECT))
7874 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7876 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7878 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7879 NL80211_MAX_NR_CIPHER_SUITES);
7883 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7884 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7887 wiphy = &rdev->wiphy;
7889 connect.bg_scan_period = -1;
7890 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7891 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7892 connect.bg_scan_period =
7893 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7896 if (info->attrs[NL80211_ATTR_MAC])
7897 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7898 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7899 connect.bssid_hint =
7900 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7901 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7902 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7904 if (info->attrs[NL80211_ATTR_IE]) {
7905 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7906 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7909 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7910 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7911 if (connect.mfp != NL80211_MFP_REQUIRED &&
7912 connect.mfp != NL80211_MFP_NO)
7915 connect.mfp = NL80211_MFP_NO;
7918 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7919 connect.channel = nl80211_get_valid_chan(
7920 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7921 if (!connect.channel)
7923 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7924 connect.channel_hint = nl80211_get_valid_chan(
7925 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7926 if (!connect.channel_hint)
7930 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7931 connkeys = nl80211_parse_connkeys(rdev,
7932 info->attrs[NL80211_ATTR_KEYS], NULL);
7933 if (IS_ERR(connkeys))
7934 return PTR_ERR(connkeys);
7937 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7938 connect.flags |= ASSOC_REQ_DISABLE_HT;
7940 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7941 memcpy(&connect.ht_capa_mask,
7942 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7943 sizeof(connect.ht_capa_mask));
7945 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7946 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7950 memcpy(&connect.ht_capa,
7951 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7952 sizeof(connect.ht_capa));
7955 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7956 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7958 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7959 memcpy(&connect.vht_capa_mask,
7960 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7961 sizeof(connect.vht_capa_mask));
7963 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7964 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7968 memcpy(&connect.vht_capa,
7969 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7970 sizeof(connect.vht_capa));
7973 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7974 if (!(rdev->wiphy.features &
7975 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7976 !(rdev->wiphy.features & NL80211_FEATURE_QUIET)) {
7980 connect.flags |= ASSOC_REQ_USE_RRM;
7983 wdev_lock(dev->ieee80211_ptr);
7984 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7985 wdev_unlock(dev->ieee80211_ptr);
7991 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7993 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7994 struct net_device *dev = info->user_ptr[1];
7998 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7999 reason = WLAN_REASON_DEAUTH_LEAVING;
8001 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
8006 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8007 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8010 wdev_lock(dev->ieee80211_ptr);
8011 ret = cfg80211_disconnect(rdev, dev, reason, true);
8012 wdev_unlock(dev->ieee80211_ptr);
8016 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
8018 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8022 if (info->attrs[NL80211_ATTR_PID]) {
8023 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
8025 net = get_net_ns_by_pid(pid);
8026 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
8027 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
8029 net = get_net_ns_by_fd(fd);
8035 return PTR_ERR(net);
8039 /* check if anything to do */
8040 if (!net_eq(wiphy_net(&rdev->wiphy), net))
8041 err = cfg80211_switch_netns(rdev, net);
8047 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
8049 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8050 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
8051 struct cfg80211_pmksa *pmksa) = NULL;
8052 struct net_device *dev = info->user_ptr[1];
8053 struct cfg80211_pmksa pmksa;
8055 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
8057 if (!info->attrs[NL80211_ATTR_MAC])
8060 if (!info->attrs[NL80211_ATTR_PMKID])
8063 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
8064 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
8066 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8067 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8070 switch (info->genlhdr->cmd) {
8071 case NL80211_CMD_SET_PMKSA:
8072 rdev_ops = rdev->ops->set_pmksa;
8074 case NL80211_CMD_DEL_PMKSA:
8075 rdev_ops = rdev->ops->del_pmksa;
8085 return rdev_ops(&rdev->wiphy, dev, &pmksa);
8088 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
8090 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8091 struct net_device *dev = info->user_ptr[1];
8093 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
8094 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
8097 if (!rdev->ops->flush_pmksa)
8100 return rdev_flush_pmksa(rdev, dev);
8103 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
8105 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8106 struct net_device *dev = info->user_ptr[1];
8107 u8 action_code, dialog_token;
8108 u32 peer_capability = 0;
8113 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8114 !rdev->ops->tdls_mgmt)
8117 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
8118 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
8119 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
8120 !info->attrs[NL80211_ATTR_IE] ||
8121 !info->attrs[NL80211_ATTR_MAC])
8124 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8125 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
8126 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
8127 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
8128 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
8129 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
8131 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
8133 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
8134 dialog_token, status_code, peer_capability,
8136 nla_data(info->attrs[NL80211_ATTR_IE]),
8137 nla_len(info->attrs[NL80211_ATTR_IE]));
8140 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
8142 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8143 struct net_device *dev = info->user_ptr[1];
8144 enum nl80211_tdls_operation operation;
8147 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
8148 !rdev->ops->tdls_oper)
8151 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
8152 !info->attrs[NL80211_ATTR_MAC])
8155 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
8156 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
8158 return rdev_tdls_oper(rdev, dev, peer, operation);
8161 static int nl80211_remain_on_channel(struct sk_buff *skb,
8162 struct genl_info *info)
8164 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8165 struct wireless_dev *wdev = info->user_ptr[1];
8166 struct cfg80211_chan_def chandef;
8167 struct sk_buff *msg;
8173 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
8174 !info->attrs[NL80211_ATTR_DURATION])
8177 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8179 if (!rdev->ops->remain_on_channel ||
8180 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
8184 * We should be on that channel for at least a minimum amount of
8185 * time (10ms) but no longer than the driver supports.
8187 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8188 duration > rdev->wiphy.max_remain_on_channel_duration)
8191 err = nl80211_parse_chandef(rdev, info, &chandef);
8195 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8199 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8200 NL80211_CMD_REMAIN_ON_CHANNEL);
8206 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8212 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8213 goto nla_put_failure;
8215 genlmsg_end(msg, hdr);
8217 return genlmsg_reply(msg, info);
8226 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8227 struct genl_info *info)
8229 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8230 struct wireless_dev *wdev = info->user_ptr[1];
8233 if (!info->attrs[NL80211_ATTR_COOKIE])
8236 if (!rdev->ops->cancel_remain_on_channel)
8239 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8241 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8244 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8245 u8 *rates, u8 rates_len)
8250 for (i = 0; i < rates_len; i++) {
8251 int rate = (rates[i] & 0x7f) * 5;
8253 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8254 struct ieee80211_rate *srate =
8255 &sband->bitrates[ridx];
8256 if (rate == srate->bitrate) {
8261 if (ridx == sband->n_bitrates)
8262 return 0; /* rate not found */
8268 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8269 u8 *rates, u8 rates_len,
8270 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8274 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8276 for (i = 0; i < rates_len; i++) {
8279 ridx = rates[i] / 8;
8280 rbit = BIT(rates[i] % 8);
8282 /* check validity */
8283 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8286 /* check availability */
8287 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8296 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8300 switch (vht_mcs_map) {
8301 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8303 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8306 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8309 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8319 static void vht_build_mcs_mask(u16 vht_mcs_map,
8320 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8324 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8325 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8330 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8331 struct nl80211_txrate_vht *txrate,
8332 u16 mcs[NL80211_VHT_NSS_MAX])
8334 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8335 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8338 if (!sband->vht_cap.vht_supported)
8341 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8343 /* Build vht_mcs_mask from VHT capabilities */
8344 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8346 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8347 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8348 mcs[i] = txrate->mcs[i];
8356 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8357 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8358 .len = NL80211_MAX_SUPP_RATES },
8359 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8360 .len = NL80211_MAX_SUPP_HT_RATES },
8361 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8362 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8365 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8366 struct genl_info *info)
8368 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8369 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8370 struct cfg80211_bitrate_mask mask;
8372 struct net_device *dev = info->user_ptr[1];
8373 struct nlattr *tx_rates;
8374 struct ieee80211_supported_band *sband;
8377 if (!rdev->ops->set_bitrate_mask)
8380 memset(&mask, 0, sizeof(mask));
8381 /* Default to all rates enabled */
8382 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8383 sband = rdev->wiphy.bands[i];
8388 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8389 memcpy(mask.control[i].ht_mcs,
8390 sband->ht_cap.mcs.rx_mask,
8391 sizeof(mask.control[i].ht_mcs));
8393 if (!sband->vht_cap.vht_supported)
8396 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8397 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8400 /* if no rates are given set it back to the defaults */
8401 if (!info->attrs[NL80211_ATTR_TX_RATES])
8405 * The nested attribute uses enum nl80211_band as the index. This maps
8406 * directly to the enum ieee80211_band values used in cfg80211.
8408 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8409 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8410 enum ieee80211_band band = nla_type(tx_rates);
8413 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8415 sband = rdev->wiphy.bands[band];
8418 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8419 nla_len(tx_rates), nl80211_txattr_policy);
8422 if (tb[NL80211_TXRATE_LEGACY]) {
8423 mask.control[band].legacy = rateset_to_mask(
8425 nla_data(tb[NL80211_TXRATE_LEGACY]),
8426 nla_len(tb[NL80211_TXRATE_LEGACY]));
8427 if ((mask.control[band].legacy == 0) &&
8428 nla_len(tb[NL80211_TXRATE_LEGACY]))
8431 if (tb[NL80211_TXRATE_HT]) {
8432 if (!ht_rateset_to_mask(
8434 nla_data(tb[NL80211_TXRATE_HT]),
8435 nla_len(tb[NL80211_TXRATE_HT]),
8436 mask.control[band].ht_mcs))
8439 if (tb[NL80211_TXRATE_VHT]) {
8440 if (!vht_set_mcs_mask(
8442 nla_data(tb[NL80211_TXRATE_VHT]),
8443 mask.control[band].vht_mcs))
8446 if (tb[NL80211_TXRATE_GI]) {
8447 mask.control[band].gi =
8448 nla_get_u8(tb[NL80211_TXRATE_GI]);
8449 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8453 if (mask.control[band].legacy == 0) {
8454 /* don't allow empty legacy rates if HT or VHT
8455 * are not even supported.
8457 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8458 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8461 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8462 if (mask.control[band].ht_mcs[i])
8465 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8466 if (mask.control[band].vht_mcs[i])
8469 /* legacy and mcs rates may not be both empty */
8475 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8478 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8480 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8481 struct wireless_dev *wdev = info->user_ptr[1];
8482 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8484 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8487 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8488 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8490 switch (wdev->iftype) {
8491 case NL80211_IFTYPE_STATION:
8492 case NL80211_IFTYPE_ADHOC:
8493 case NL80211_IFTYPE_P2P_CLIENT:
8494 case NL80211_IFTYPE_AP:
8495 case NL80211_IFTYPE_AP_VLAN:
8496 case NL80211_IFTYPE_MESH_POINT:
8497 case NL80211_IFTYPE_P2P_GO:
8498 case NL80211_IFTYPE_P2P_DEVICE:
8504 /* not much point in registering if we can't reply */
8505 if (!rdev->ops->mgmt_tx)
8508 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8509 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8510 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8513 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8515 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8516 struct wireless_dev *wdev = info->user_ptr[1];
8517 struct cfg80211_chan_def chandef;
8521 struct sk_buff *msg = NULL;
8522 struct cfg80211_mgmt_tx_params params = {
8523 .dont_wait_for_ack =
8524 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8527 if (!info->attrs[NL80211_ATTR_FRAME])
8530 if (!rdev->ops->mgmt_tx)
8533 switch (wdev->iftype) {
8534 case NL80211_IFTYPE_P2P_DEVICE:
8535 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8537 case NL80211_IFTYPE_STATION:
8538 case NL80211_IFTYPE_ADHOC:
8539 case NL80211_IFTYPE_P2P_CLIENT:
8540 case NL80211_IFTYPE_AP:
8541 case NL80211_IFTYPE_AP_VLAN:
8542 case NL80211_IFTYPE_MESH_POINT:
8543 case NL80211_IFTYPE_P2P_GO:
8549 if (info->attrs[NL80211_ATTR_DURATION]) {
8550 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8552 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8555 * We should wait on the channel for at least a minimum amount
8556 * of time (10ms) but no longer than the driver supports.
8558 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8559 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8564 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8566 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8569 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8571 /* get the channel if any has been specified, otherwise pass NULL to
8572 * the driver. The latter will use the current one
8574 chandef.chan = NULL;
8575 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8576 err = nl80211_parse_chandef(rdev, info, &chandef);
8581 if (!chandef.chan && params.offchan)
8584 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8585 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8587 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8588 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8591 if (len % sizeof(u16))
8594 params.n_csa_offsets = len / sizeof(u16);
8595 params.csa_offsets =
8596 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8598 /* check that all the offsets fit the frame */
8599 for (i = 0; i < params.n_csa_offsets; i++) {
8600 if (params.csa_offsets[i] >= params.len)
8605 if (!params.dont_wait_for_ack) {
8606 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8610 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8618 params.chan = chandef.chan;
8619 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8624 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8625 goto nla_put_failure;
8627 genlmsg_end(msg, hdr);
8628 return genlmsg_reply(msg, info);
8640 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8642 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8643 struct wireless_dev *wdev = info->user_ptr[1];
8646 if (!info->attrs[NL80211_ATTR_COOKIE])
8649 if (!rdev->ops->mgmt_tx_cancel_wait)
8652 switch (wdev->iftype) {
8653 case NL80211_IFTYPE_STATION:
8654 case NL80211_IFTYPE_ADHOC:
8655 case NL80211_IFTYPE_P2P_CLIENT:
8656 case NL80211_IFTYPE_AP:
8657 case NL80211_IFTYPE_AP_VLAN:
8658 case NL80211_IFTYPE_P2P_GO:
8659 case NL80211_IFTYPE_P2P_DEVICE:
8665 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8667 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8670 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8672 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8673 struct wireless_dev *wdev;
8674 struct net_device *dev = info->user_ptr[1];
8679 if (!info->attrs[NL80211_ATTR_PS_STATE])
8682 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8684 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8687 wdev = dev->ieee80211_ptr;
8689 if (!rdev->ops->set_power_mgmt)
8692 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8694 if (state == wdev->ps)
8697 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8703 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8705 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8706 enum nl80211_ps_state ps_state;
8707 struct wireless_dev *wdev;
8708 struct net_device *dev = info->user_ptr[1];
8709 struct sk_buff *msg;
8713 wdev = dev->ieee80211_ptr;
8715 if (!rdev->ops->set_power_mgmt)
8718 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8722 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8723 NL80211_CMD_GET_POWER_SAVE);
8730 ps_state = NL80211_PS_ENABLED;
8732 ps_state = NL80211_PS_DISABLED;
8734 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8735 goto nla_put_failure;
8737 genlmsg_end(msg, hdr);
8738 return genlmsg_reply(msg, info);
8747 static const struct nla_policy
8748 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8749 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8750 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8751 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8752 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8753 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8754 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8757 static int nl80211_set_cqm_txe(struct genl_info *info,
8758 u32 rate, u32 pkts, u32 intvl)
8760 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8761 struct net_device *dev = info->user_ptr[1];
8762 struct wireless_dev *wdev = dev->ieee80211_ptr;
8764 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8767 if (!rdev->ops->set_cqm_txe_config)
8770 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8771 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8774 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8777 static int nl80211_set_cqm_rssi(struct genl_info *info,
8778 s32 threshold, u32 hysteresis)
8780 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8781 struct net_device *dev = info->user_ptr[1];
8782 struct wireless_dev *wdev = dev->ieee80211_ptr;
8787 /* disabling - hysteresis should also be zero then */
8791 if (!rdev->ops->set_cqm_rssi_config)
8794 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8795 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8798 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8801 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8803 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8807 cqm = info->attrs[NL80211_ATTR_CQM];
8811 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8812 nl80211_attr_cqm_policy);
8816 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8817 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8818 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8819 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8821 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8824 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8825 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8826 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8827 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8828 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8829 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8831 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8837 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8839 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8840 struct net_device *dev = info->user_ptr[1];
8841 struct ocb_setup setup = {};
8844 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8848 return cfg80211_join_ocb(rdev, dev, &setup);
8851 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8853 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8854 struct net_device *dev = info->user_ptr[1];
8856 return cfg80211_leave_ocb(rdev, dev);
8859 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8861 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8862 struct net_device *dev = info->user_ptr[1];
8863 struct mesh_config cfg;
8864 struct mesh_setup setup;
8867 /* start with default */
8868 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8869 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8871 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8872 /* and parse parameters if given */
8873 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8878 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8879 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8882 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8883 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8885 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8886 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8887 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8890 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8891 setup.beacon_interval =
8892 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8893 if (setup.beacon_interval < 10 ||
8894 setup.beacon_interval > 10000)
8898 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8900 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8901 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8905 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8906 /* parse additional setup parameters if given */
8907 err = nl80211_parse_mesh_setup(info, &setup);
8913 cfg.auto_open_plinks = false;
8915 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8916 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8920 /* cfg80211_join_mesh() will sort it out */
8921 setup.chandef.chan = NULL;
8924 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8925 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8927 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8928 struct ieee80211_supported_band *sband;
8930 if (!setup.chandef.chan)
8933 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8935 err = ieee80211_get_ratemask(sband, rates, n_rates,
8936 &setup.basic_rates);
8941 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8944 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8946 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8947 struct net_device *dev = info->user_ptr[1];
8949 return cfg80211_leave_mesh(rdev, dev);
8953 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8954 struct cfg80211_registered_device *rdev)
8956 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8957 struct nlattr *nl_pats, *nl_pat;
8960 if (!wowlan->n_patterns)
8963 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8967 for (i = 0; i < wowlan->n_patterns; i++) {
8968 nl_pat = nla_nest_start(msg, i + 1);
8971 pat_len = wowlan->patterns[i].pattern_len;
8972 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8973 wowlan->patterns[i].mask) ||
8974 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8975 wowlan->patterns[i].pattern) ||
8976 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8977 wowlan->patterns[i].pkt_offset))
8979 nla_nest_end(msg, nl_pat);
8981 nla_nest_end(msg, nl_pats);
8986 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8987 struct cfg80211_wowlan_tcp *tcp)
8989 struct nlattr *nl_tcp;
8994 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8998 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8999 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
9000 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
9001 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
9002 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
9003 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
9004 tcp->payload_len, tcp->payload) ||
9005 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
9006 tcp->data_interval) ||
9007 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
9008 tcp->wake_len, tcp->wake_data) ||
9009 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
9010 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
9013 if (tcp->payload_seq.len &&
9014 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
9015 sizeof(tcp->payload_seq), &tcp->payload_seq))
9018 if (tcp->payload_tok.len &&
9019 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
9020 sizeof(tcp->payload_tok) + tcp->tokens_size,
9024 nla_nest_end(msg, nl_tcp);
9029 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
9030 struct cfg80211_sched_scan_request *req)
9032 struct nlattr *nd, *freqs, *matches, *match, *scan_plans, *scan_plan;
9038 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
9042 if (req->n_scan_plans == 1 &&
9043 nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL,
9044 req->scan_plans[0].interval * 1000))
9047 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
9050 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
9054 for (i = 0; i < req->n_channels; i++)
9055 nla_put_u32(msg, i, req->channels[i]->center_freq);
9057 nla_nest_end(msg, freqs);
9059 if (req->n_match_sets) {
9060 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
9061 for (i = 0; i < req->n_match_sets; i++) {
9062 match = nla_nest_start(msg, i);
9063 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
9064 req->match_sets[i].ssid.ssid_len,
9065 req->match_sets[i].ssid.ssid);
9066 nla_nest_end(msg, match);
9068 nla_nest_end(msg, matches);
9071 scan_plans = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_PLANS);
9075 for (i = 0; i < req->n_scan_plans; i++) {
9076 scan_plan = nla_nest_start(msg, i + 1);
9078 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_INTERVAL,
9079 req->scan_plans[i].interval) ||
9080 (req->scan_plans[i].iterations &&
9081 nla_put_u32(msg, NL80211_SCHED_SCAN_PLAN_ITERATIONS,
9082 req->scan_plans[i].iterations)))
9084 nla_nest_end(msg, scan_plan);
9086 nla_nest_end(msg, scan_plans);
9088 nla_nest_end(msg, nd);
9093 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
9095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9096 struct sk_buff *msg;
9098 u32 size = NLMSG_DEFAULT_SIZE;
9100 if (!rdev->wiphy.wowlan)
9103 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
9104 /* adjust size to have room for all the data */
9105 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
9106 rdev->wiphy.wowlan_config->tcp->payload_len +
9107 rdev->wiphy.wowlan_config->tcp->wake_len +
9108 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
9111 msg = nlmsg_new(size, GFP_KERNEL);
9115 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9116 NL80211_CMD_GET_WOWLAN);
9118 goto nla_put_failure;
9120 if (rdev->wiphy.wowlan_config) {
9121 struct nlattr *nl_wowlan;
9123 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
9125 goto nla_put_failure;
9127 if ((rdev->wiphy.wowlan_config->any &&
9128 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
9129 (rdev->wiphy.wowlan_config->disconnect &&
9130 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
9131 (rdev->wiphy.wowlan_config->magic_pkt &&
9132 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
9133 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
9134 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
9135 (rdev->wiphy.wowlan_config->eap_identity_req &&
9136 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
9137 (rdev->wiphy.wowlan_config->four_way_handshake &&
9138 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
9139 (rdev->wiphy.wowlan_config->rfkill_release &&
9140 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
9141 goto nla_put_failure;
9143 if (nl80211_send_wowlan_patterns(msg, rdev))
9144 goto nla_put_failure;
9146 if (nl80211_send_wowlan_tcp(msg,
9147 rdev->wiphy.wowlan_config->tcp))
9148 goto nla_put_failure;
9150 if (nl80211_send_wowlan_nd(
9152 rdev->wiphy.wowlan_config->nd_config))
9153 goto nla_put_failure;
9155 nla_nest_end(msg, nl_wowlan);
9158 genlmsg_end(msg, hdr);
9159 return genlmsg_reply(msg, info);
9166 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
9167 struct nlattr *attr,
9168 struct cfg80211_wowlan *trig)
9170 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
9171 struct cfg80211_wowlan_tcp *cfg;
9172 struct nl80211_wowlan_tcp_data_token *tok = NULL;
9173 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
9175 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
9178 if (!rdev->wiphy.wowlan->tcp)
9181 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
9182 nla_data(attr), nla_len(attr),
9183 nl80211_wowlan_tcp_policy);
9187 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
9188 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
9189 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
9190 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
9191 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
9192 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
9193 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
9194 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
9197 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
9198 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
9201 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
9202 rdev->wiphy.wowlan->tcp->data_interval_max ||
9203 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
9206 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
9207 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
9210 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
9211 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
9214 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
9215 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9217 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9218 tokens_size = tokln - sizeof(*tok);
9220 if (!tok->len || tokens_size % tok->len)
9222 if (!rdev->wiphy.wowlan->tcp->tok)
9224 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9226 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9228 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9230 if (tok->offset + tok->len > data_size)
9234 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9235 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9236 if (!rdev->wiphy.wowlan->tcp->seq)
9238 if (seq->len == 0 || seq->len > 4)
9240 if (seq->len + seq->offset > data_size)
9244 size = sizeof(*cfg);
9246 size += wake_size + wake_mask_size;
9247 size += tokens_size;
9249 cfg = kzalloc(size, GFP_KERNEL);
9252 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9253 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9254 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9256 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9257 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9261 /* allocate a socket and port for it and use it */
9262 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9263 IPPROTO_TCP, &cfg->sock, 1);
9268 if (inet_csk_get_port(cfg->sock->sk, port)) {
9269 sock_release(cfg->sock);
9273 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9279 cfg->src_port = port;
9282 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9283 cfg->payload_len = data_size;
9284 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9285 memcpy((void *)cfg->payload,
9286 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9289 cfg->payload_seq = *seq;
9290 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9291 cfg->wake_len = wake_size;
9292 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9293 memcpy((void *)cfg->wake_data,
9294 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9296 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9297 data_size + wake_size;
9298 memcpy((void *)cfg->wake_mask,
9299 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9302 cfg->tokens_size = tokens_size;
9303 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9311 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9312 const struct wiphy_wowlan_support *wowlan,
9313 struct nlattr *attr,
9314 struct cfg80211_wowlan *trig)
9319 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9323 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9328 err = nla_parse(tb, NL80211_ATTR_MAX,
9329 nla_data(attr), nla_len(attr),
9334 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9335 err = PTR_ERR_OR_ZERO(trig->nd_config);
9337 trig->nd_config = NULL;
9344 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9346 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9347 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9348 struct cfg80211_wowlan new_triggers = {};
9349 struct cfg80211_wowlan *ntrig;
9350 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9352 bool prev_enabled = rdev->wiphy.wowlan_config;
9353 bool regular = false;
9358 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9359 cfg80211_rdev_free_wowlan(rdev);
9360 rdev->wiphy.wowlan_config = NULL;
9364 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9365 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9366 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9367 nl80211_wowlan_policy);
9371 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9372 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9374 new_triggers.any = true;
9377 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9378 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9380 new_triggers.disconnect = true;
9384 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9385 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9387 new_triggers.magic_pkt = true;
9391 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9394 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9395 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9397 new_triggers.gtk_rekey_failure = true;
9401 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9402 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9404 new_triggers.eap_identity_req = true;
9408 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9409 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9411 new_triggers.four_way_handshake = true;
9415 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9416 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9418 new_triggers.rfkill_release = true;
9422 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9425 int rem, pat_len, mask_len, pkt_offset;
9426 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9430 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9433 if (n_patterns > wowlan->n_patterns)
9436 new_triggers.patterns = kcalloc(n_patterns,
9437 sizeof(new_triggers.patterns[0]),
9439 if (!new_triggers.patterns)
9442 new_triggers.n_patterns = n_patterns;
9445 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9449 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9450 nla_len(pat), NULL);
9452 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9453 !pat_tb[NL80211_PKTPAT_PATTERN])
9455 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9456 mask_len = DIV_ROUND_UP(pat_len, 8);
9457 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9459 if (pat_len > wowlan->pattern_max_len ||
9460 pat_len < wowlan->pattern_min_len)
9463 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9466 pkt_offset = nla_get_u32(
9467 pat_tb[NL80211_PKTPAT_OFFSET]);
9468 if (pkt_offset > wowlan->max_pkt_offset)
9470 new_triggers.patterns[i].pkt_offset = pkt_offset;
9472 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9477 new_triggers.patterns[i].mask = mask_pat;
9478 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9480 mask_pat += mask_len;
9481 new_triggers.patterns[i].pattern = mask_pat;
9482 new_triggers.patterns[i].pattern_len = pat_len;
9484 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9490 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9492 err = nl80211_parse_wowlan_tcp(
9493 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9499 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9501 err = nl80211_parse_wowlan_nd(
9502 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9508 /* The 'any' trigger means the device continues operating more or less
9509 * as in its normal operation mode and wakes up the host on most of the
9510 * normal interrupts (like packet RX, ...)
9511 * It therefore makes little sense to combine with the more constrained
9512 * wakeup trigger modes.
9514 if (new_triggers.any && regular) {
9519 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9524 cfg80211_rdev_free_wowlan(rdev);
9525 rdev->wiphy.wowlan_config = ntrig;
9528 if (rdev->ops->set_wakeup &&
9529 prev_enabled != !!rdev->wiphy.wowlan_config)
9530 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9534 for (i = 0; i < new_triggers.n_patterns; i++)
9535 kfree(new_triggers.patterns[i].mask);
9536 kfree(new_triggers.patterns);
9537 if (new_triggers.tcp && new_triggers.tcp->sock)
9538 sock_release(new_triggers.tcp->sock);
9539 kfree(new_triggers.tcp);
9540 kfree(new_triggers.nd_config);
9545 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9546 struct cfg80211_registered_device *rdev)
9548 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9550 struct cfg80211_coalesce_rules *rule;
9552 if (!rdev->coalesce->n_rules)
9555 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9559 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9560 nl_rule = nla_nest_start(msg, i + 1);
9564 rule = &rdev->coalesce->rules[i];
9565 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9569 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9573 nl_pats = nla_nest_start(msg,
9574 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9578 for (j = 0; j < rule->n_patterns; j++) {
9579 nl_pat = nla_nest_start(msg, j + 1);
9582 pat_len = rule->patterns[j].pattern_len;
9583 if (nla_put(msg, NL80211_PKTPAT_MASK,
9584 DIV_ROUND_UP(pat_len, 8),
9585 rule->patterns[j].mask) ||
9586 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9587 rule->patterns[j].pattern) ||
9588 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9589 rule->patterns[j].pkt_offset))
9591 nla_nest_end(msg, nl_pat);
9593 nla_nest_end(msg, nl_pats);
9594 nla_nest_end(msg, nl_rule);
9596 nla_nest_end(msg, nl_rules);
9601 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9603 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9604 struct sk_buff *msg;
9607 if (!rdev->wiphy.coalesce)
9610 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9614 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9615 NL80211_CMD_GET_COALESCE);
9617 goto nla_put_failure;
9619 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9620 goto nla_put_failure;
9622 genlmsg_end(msg, hdr);
9623 return genlmsg_reply(msg, info);
9630 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9632 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9634 struct cfg80211_coalesce_rules *rule;
9639 for (i = 0; i < coalesce->n_rules; i++) {
9640 rule = &coalesce->rules[i];
9641 for (j = 0; j < rule->n_patterns; j++)
9642 kfree(rule->patterns[j].mask);
9643 kfree(rule->patterns);
9645 kfree(coalesce->rules);
9647 rdev->coalesce = NULL;
9650 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9651 struct nlattr *rule,
9652 struct cfg80211_coalesce_rules *new_rule)
9655 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9656 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9657 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9658 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9660 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9661 nla_len(rule), nl80211_coalesce_policy);
9665 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9667 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9668 if (new_rule->delay > coalesce->max_delay)
9671 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9672 new_rule->condition =
9673 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9674 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9675 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9678 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9681 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9684 if (n_patterns > coalesce->n_patterns)
9687 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9689 if (!new_rule->patterns)
9692 new_rule->n_patterns = n_patterns;
9695 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9699 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9700 nla_len(pat), NULL);
9701 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9702 !pat_tb[NL80211_PKTPAT_PATTERN])
9704 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9705 mask_len = DIV_ROUND_UP(pat_len, 8);
9706 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9708 if (pat_len > coalesce->pattern_max_len ||
9709 pat_len < coalesce->pattern_min_len)
9712 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9715 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9716 if (pkt_offset > coalesce->max_pkt_offset)
9718 new_rule->patterns[i].pkt_offset = pkt_offset;
9720 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9724 new_rule->patterns[i].mask = mask_pat;
9725 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9728 mask_pat += mask_len;
9729 new_rule->patterns[i].pattern = mask_pat;
9730 new_rule->patterns[i].pattern_len = pat_len;
9731 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9739 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9741 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9742 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9743 struct cfg80211_coalesce new_coalesce = {};
9744 struct cfg80211_coalesce *n_coalesce;
9745 int err, rem_rule, n_rules = 0, i, j;
9746 struct nlattr *rule;
9747 struct cfg80211_coalesce_rules *tmp_rule;
9749 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9752 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9753 cfg80211_rdev_free_coalesce(rdev);
9754 rdev_set_coalesce(rdev, NULL);
9758 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9761 if (n_rules > coalesce->n_rules)
9764 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9766 if (!new_coalesce.rules)
9769 new_coalesce.n_rules = n_rules;
9772 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9774 err = nl80211_parse_coalesce_rule(rdev, rule,
9775 &new_coalesce.rules[i]);
9782 err = rdev_set_coalesce(rdev, &new_coalesce);
9786 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9791 cfg80211_rdev_free_coalesce(rdev);
9792 rdev->coalesce = n_coalesce;
9796 for (i = 0; i < new_coalesce.n_rules; i++) {
9797 tmp_rule = &new_coalesce.rules[i];
9798 for (j = 0; j < tmp_rule->n_patterns; j++)
9799 kfree(tmp_rule->patterns[j].mask);
9800 kfree(tmp_rule->patterns);
9802 kfree(new_coalesce.rules);
9807 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9810 struct net_device *dev = info->user_ptr[1];
9811 struct wireless_dev *wdev = dev->ieee80211_ptr;
9812 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9813 struct cfg80211_gtk_rekey_data rekey_data;
9816 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9819 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9820 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9821 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9822 nl80211_rekey_policy);
9826 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9828 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9830 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9833 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9834 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9835 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9838 if (!wdev->current_bss) {
9843 if (!rdev->ops->set_rekey_data) {
9848 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9854 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9855 struct genl_info *info)
9857 struct net_device *dev = info->user_ptr[1];
9858 struct wireless_dev *wdev = dev->ieee80211_ptr;
9860 if (wdev->iftype != NL80211_IFTYPE_AP &&
9861 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9864 if (wdev->ap_unexpected_nlportid)
9867 wdev->ap_unexpected_nlportid = info->snd_portid;
9871 static int nl80211_probe_client(struct sk_buff *skb,
9872 struct genl_info *info)
9874 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9875 struct net_device *dev = info->user_ptr[1];
9876 struct wireless_dev *wdev = dev->ieee80211_ptr;
9877 struct sk_buff *msg;
9883 if (wdev->iftype != NL80211_IFTYPE_AP &&
9884 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9887 if (!info->attrs[NL80211_ATTR_MAC])
9890 if (!rdev->ops->probe_client)
9893 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9897 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9898 NL80211_CMD_PROBE_CLIENT);
9904 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9906 err = rdev_probe_client(rdev, dev, addr, &cookie);
9910 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9911 goto nla_put_failure;
9913 genlmsg_end(msg, hdr);
9915 return genlmsg_reply(msg, info);
9924 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9926 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9927 struct cfg80211_beacon_registration *reg, *nreg;
9930 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9933 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9937 /* First, check if already registered. */
9938 spin_lock_bh(&rdev->beacon_registrations_lock);
9939 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9940 if (reg->nlportid == info->snd_portid) {
9945 /* Add it to the list */
9946 nreg->nlportid = info->snd_portid;
9947 list_add(&nreg->list, &rdev->beacon_registrations);
9949 spin_unlock_bh(&rdev->beacon_registrations_lock);
9953 spin_unlock_bh(&rdev->beacon_registrations_lock);
9958 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9960 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9961 struct wireless_dev *wdev = info->user_ptr[1];
9964 if (!rdev->ops->start_p2p_device)
9967 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9970 if (wdev->p2p_started)
9973 if (rfkill_blocked(rdev->rfkill))
9976 err = rdev_start_p2p_device(rdev, wdev);
9980 wdev->p2p_started = true;
9986 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9988 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9989 struct wireless_dev *wdev = info->user_ptr[1];
9991 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9994 if (!rdev->ops->stop_p2p_device)
9997 cfg80211_stop_p2p_device(rdev, wdev);
10002 static int nl80211_get_protocol_features(struct sk_buff *skb,
10003 struct genl_info *info)
10006 struct sk_buff *msg;
10008 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
10012 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
10013 NL80211_CMD_GET_PROTOCOL_FEATURES);
10015 goto nla_put_failure;
10017 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
10018 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
10019 goto nla_put_failure;
10021 genlmsg_end(msg, hdr);
10022 return genlmsg_reply(msg, info);
10029 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
10031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10032 struct cfg80211_update_ft_ies_params ft_params;
10033 struct net_device *dev = info->user_ptr[1];
10035 if (!rdev->ops->update_ft_ies)
10036 return -EOPNOTSUPP;
10038 if (!info->attrs[NL80211_ATTR_MDID] ||
10039 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
10042 memset(&ft_params, 0, sizeof(ft_params));
10043 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
10044 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
10045 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
10047 return rdev_update_ft_ies(rdev, dev, &ft_params);
10050 static int nl80211_crit_protocol_start(struct sk_buff *skb,
10051 struct genl_info *info)
10053 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10054 struct wireless_dev *wdev = info->user_ptr[1];
10055 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
10059 if (!rdev->ops->crit_proto_start)
10060 return -EOPNOTSUPP;
10062 if (WARN_ON(!rdev->ops->crit_proto_stop))
10065 if (rdev->crit_proto_nlportid)
10068 /* determine protocol if provided */
10069 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
10070 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
10072 if (proto >= NUM_NL80211_CRIT_PROTO)
10075 /* timeout must be provided */
10076 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
10080 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
10082 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
10085 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
10087 rdev->crit_proto_nlportid = info->snd_portid;
10092 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
10093 struct genl_info *info)
10095 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10096 struct wireless_dev *wdev = info->user_ptr[1];
10098 if (!rdev->ops->crit_proto_stop)
10099 return -EOPNOTSUPP;
10101 if (rdev->crit_proto_nlportid) {
10102 rdev->crit_proto_nlportid = 0;
10103 rdev_crit_proto_stop(rdev, wdev);
10108 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
10110 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10111 struct wireless_dev *wdev =
10112 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
10116 if (!rdev->wiphy.vendor_commands)
10117 return -EOPNOTSUPP;
10119 if (IS_ERR(wdev)) {
10120 err = PTR_ERR(wdev);
10121 if (err != -EINVAL)
10124 } else if (wdev->wiphy != &rdev->wiphy) {
10128 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
10129 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
10132 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
10133 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
10134 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
10135 const struct wiphy_vendor_command *vcmd;
10139 vcmd = &rdev->wiphy.vendor_commands[i];
10141 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10144 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10145 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10148 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10152 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10153 if (wdev->netdev &&
10154 !netif_running(wdev->netdev))
10156 if (!wdev->netdev && !wdev->p2p_started)
10161 return -EOPNOTSUPP;
10166 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
10167 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10168 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
10171 rdev->cur_cmd_info = info;
10172 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
10174 rdev->cur_cmd_info = NULL;
10178 return -EOPNOTSUPP;
10181 static int nl80211_prepare_vendor_dump(struct sk_buff *skb,
10182 struct netlink_callback *cb,
10183 struct cfg80211_registered_device **rdev,
10184 struct wireless_dev **wdev)
10191 unsigned int data_len = 0;
10196 /* subtract the 1 again here */
10197 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
10198 struct wireless_dev *tmp;
10204 *rdev = wiphy_to_rdev(wiphy);
10208 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
10209 if (tmp->identifier == cb->args[1] - 1) {
10216 /* keep rtnl locked in successful case */
10220 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
10221 nl80211_fam.attrbuf, nl80211_fam.maxattr,
10226 if (!nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID] ||
10227 !nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]) {
10232 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
10233 nl80211_fam.attrbuf);
10237 *rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
10238 nl80211_fam.attrbuf);
10239 if (IS_ERR(*rdev)) {
10240 err = PTR_ERR(*rdev);
10244 vid = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_ID]);
10245 subcmd = nla_get_u32(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_SUBCMD]);
10247 for (i = 0; i < (*rdev)->wiphy.n_vendor_commands; i++) {
10248 const struct wiphy_vendor_command *vcmd;
10250 vcmd = &(*rdev)->wiphy.vendor_commands[i];
10252 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
10255 if (!vcmd->dumpit) {
10264 if (vcmd_idx < 0) {
10269 if (nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]) {
10270 data = nla_data(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10271 data_len = nla_len(nl80211_fam.attrbuf[NL80211_ATTR_VENDOR_DATA]);
10274 /* 0 is the first index - add 1 to parse only once */
10275 cb->args[0] = (*rdev)->wiphy_idx + 1;
10276 /* add 1 to know if it was NULL */
10277 cb->args[1] = *wdev ? (*wdev)->identifier + 1 : 0;
10278 cb->args[2] = vcmd_idx;
10279 cb->args[3] = (unsigned long)data;
10280 cb->args[4] = data_len;
10282 /* keep rtnl locked in successful case */
10289 static int nl80211_vendor_cmd_dump(struct sk_buff *skb,
10290 struct netlink_callback *cb)
10292 struct cfg80211_registered_device *rdev;
10293 struct wireless_dev *wdev;
10294 unsigned int vcmd_idx;
10295 const struct wiphy_vendor_command *vcmd;
10299 struct nlattr *vendor_data;
10301 err = nl80211_prepare_vendor_dump(skb, cb, &rdev, &wdev);
10305 vcmd_idx = cb->args[2];
10306 data = (void *)cb->args[3];
10307 data_len = cb->args[4];
10308 vcmd = &rdev->wiphy.vendor_commands[vcmd_idx];
10310 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
10311 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
10314 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
10318 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
10319 if (wdev->netdev &&
10320 !netif_running(wdev->netdev))
10322 if (!wdev->netdev && !wdev->p2p_started)
10328 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
10329 cb->nlh->nlmsg_seq, NLM_F_MULTI,
10330 NL80211_CMD_VENDOR);
10334 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
10335 (wdev && nla_put_u64(skb, NL80211_ATTR_WDEV,
10337 genlmsg_cancel(skb, hdr);
10341 vendor_data = nla_nest_start(skb, NL80211_ATTR_VENDOR_DATA);
10342 if (!vendor_data) {
10343 genlmsg_cancel(skb, hdr);
10347 err = vcmd->dumpit(&rdev->wiphy, wdev, skb, data, data_len,
10348 (unsigned long *)&cb->args[5]);
10349 nla_nest_end(skb, vendor_data);
10351 if (err == -ENOBUFS || err == -ENOENT) {
10352 genlmsg_cancel(skb, hdr);
10355 genlmsg_cancel(skb, hdr);
10359 genlmsg_end(skb, hdr);
10368 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
10369 enum nl80211_commands cmd,
10370 enum nl80211_attrs attr,
10373 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
10375 if (WARN_ON(!rdev->cur_cmd_info))
10378 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
10379 rdev->cur_cmd_info->snd_portid,
10380 rdev->cur_cmd_info->snd_seq,
10381 cmd, attr, NULL, GFP_KERNEL);
10383 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
10385 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
10387 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
10388 void *hdr = ((void **)skb->cb)[1];
10389 struct nlattr *data = ((void **)skb->cb)[2];
10391 /* clear CB data for netlink core to own from now on */
10392 memset(skb->cb, 0, sizeof(skb->cb));
10394 if (WARN_ON(!rdev->cur_cmd_info)) {
10399 nla_nest_end(skb, data);
10400 genlmsg_end(skb, hdr);
10401 return genlmsg_reply(skb, rdev->cur_cmd_info);
10403 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
10406 static int nl80211_set_qos_map(struct sk_buff *skb,
10407 struct genl_info *info)
10409 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10410 struct cfg80211_qos_map *qos_map = NULL;
10411 struct net_device *dev = info->user_ptr[1];
10412 u8 *pos, len, num_des, des_len, des;
10415 if (!rdev->ops->set_qos_map)
10416 return -EOPNOTSUPP;
10418 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10419 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10420 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10422 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10423 len > IEEE80211_QOS_MAP_LEN_MAX)
10426 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10430 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10432 des_len = num_des *
10433 sizeof(struct cfg80211_dscp_exception);
10434 memcpy(qos_map->dscp_exception, pos, des_len);
10435 qos_map->num_des = num_des;
10436 for (des = 0; des < num_des; des++) {
10437 if (qos_map->dscp_exception[des].up > 7) {
10444 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10447 wdev_lock(dev->ieee80211_ptr);
10448 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10450 ret = rdev_set_qos_map(rdev, dev, qos_map);
10451 wdev_unlock(dev->ieee80211_ptr);
10457 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10460 struct net_device *dev = info->user_ptr[1];
10461 struct wireless_dev *wdev = dev->ieee80211_ptr;
10464 u16 admitted_time = 0;
10467 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10468 return -EOPNOTSUPP;
10470 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10471 !info->attrs[NL80211_ATTR_USER_PRIO])
10474 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10475 if (tsid >= IEEE80211_NUM_TIDS)
10478 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10479 if (up >= IEEE80211_NUM_UPS)
10482 /* WMM uses TIDs 0-7 even for TSPEC */
10483 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10484 /* TODO: handle 802.11 TSPEC/admission control
10485 * need more attributes for that (e.g. BA session requirement);
10486 * change the WMM adminssion test above to allow both then
10491 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10493 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10495 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10496 if (!admitted_time)
10501 switch (wdev->iftype) {
10502 case NL80211_IFTYPE_STATION:
10503 case NL80211_IFTYPE_P2P_CLIENT:
10504 if (wdev->current_bss)
10513 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10520 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10522 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10523 struct net_device *dev = info->user_ptr[1];
10524 struct wireless_dev *wdev = dev->ieee80211_ptr;
10529 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10532 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10533 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10536 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10542 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10543 struct genl_info *info)
10545 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10546 struct net_device *dev = info->user_ptr[1];
10547 struct wireless_dev *wdev = dev->ieee80211_ptr;
10548 struct cfg80211_chan_def chandef = {};
10553 if (!rdev->ops->tdls_channel_switch ||
10554 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10555 return -EOPNOTSUPP;
10557 switch (dev->ieee80211_ptr->iftype) {
10558 case NL80211_IFTYPE_STATION:
10559 case NL80211_IFTYPE_P2P_CLIENT:
10562 return -EOPNOTSUPP;
10565 if (!info->attrs[NL80211_ATTR_MAC] ||
10566 !info->attrs[NL80211_ATTR_OPER_CLASS])
10569 err = nl80211_parse_chandef(rdev, info, &chandef);
10574 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10575 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10576 * specification is not defined for them.
10578 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10579 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10580 chandef.width != NL80211_CHAN_WIDTH_20)
10583 /* we will be active on the TDLS link */
10584 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10588 /* don't allow switching to DFS channels */
10589 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10592 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10593 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10596 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10602 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10603 struct genl_info *info)
10605 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10606 struct net_device *dev = info->user_ptr[1];
10607 struct wireless_dev *wdev = dev->ieee80211_ptr;
10610 if (!rdev->ops->tdls_channel_switch ||
10611 !rdev->ops->tdls_cancel_channel_switch ||
10612 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10613 return -EOPNOTSUPP;
10615 switch (dev->ieee80211_ptr->iftype) {
10616 case NL80211_IFTYPE_STATION:
10617 case NL80211_IFTYPE_P2P_CLIENT:
10620 return -EOPNOTSUPP;
10623 if (!info->attrs[NL80211_ATTR_MAC])
10626 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10629 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10635 #define NL80211_FLAG_NEED_WIPHY 0x01
10636 #define NL80211_FLAG_NEED_NETDEV 0x02
10637 #define NL80211_FLAG_NEED_RTNL 0x04
10638 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10639 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10640 NL80211_FLAG_CHECK_NETDEV_UP)
10641 #define NL80211_FLAG_NEED_WDEV 0x10
10642 /* If a netdev is associated, it must be UP, P2P must be started */
10643 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10644 NL80211_FLAG_CHECK_NETDEV_UP)
10645 #define NL80211_FLAG_CLEAR_SKB 0x20
10647 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10648 struct genl_info *info)
10650 struct cfg80211_registered_device *rdev;
10651 struct wireless_dev *wdev;
10652 struct net_device *dev;
10653 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10658 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10659 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10660 if (IS_ERR(rdev)) {
10663 return PTR_ERR(rdev);
10665 info->user_ptr[0] = rdev;
10666 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10667 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10670 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10672 if (IS_ERR(wdev)) {
10675 return PTR_ERR(wdev);
10678 dev = wdev->netdev;
10679 rdev = wiphy_to_rdev(wdev->wiphy);
10681 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10688 info->user_ptr[1] = dev;
10690 info->user_ptr[1] = wdev;
10694 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10695 !netif_running(dev)) {
10702 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10703 if (!wdev->p2p_started) {
10710 info->user_ptr[0] = rdev;
10716 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10717 struct genl_info *info)
10719 if (info->user_ptr[1]) {
10720 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10721 struct wireless_dev *wdev = info->user_ptr[1];
10724 dev_put(wdev->netdev);
10726 dev_put(info->user_ptr[1]);
10730 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10733 /* If needed, clear the netlink message payload from the SKB
10734 * as it might contain key data that shouldn't stick around on
10735 * the heap after the SKB is freed. The netlink message header
10736 * is still needed for further processing, so leave it intact.
10738 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10739 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10741 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10745 static const struct genl_ops nl80211_ops[] = {
10747 .cmd = NL80211_CMD_GET_WIPHY,
10748 .doit = nl80211_get_wiphy,
10749 .dumpit = nl80211_dump_wiphy,
10750 .done = nl80211_dump_wiphy_done,
10751 .policy = nl80211_policy,
10752 /* can be retrieved by unprivileged users */
10753 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10754 NL80211_FLAG_NEED_RTNL,
10757 .cmd = NL80211_CMD_SET_WIPHY,
10758 .doit = nl80211_set_wiphy,
10759 .policy = nl80211_policy,
10760 .flags = GENL_ADMIN_PERM,
10761 .internal_flags = NL80211_FLAG_NEED_RTNL,
10764 .cmd = NL80211_CMD_GET_INTERFACE,
10765 .doit = nl80211_get_interface,
10766 .dumpit = nl80211_dump_interface,
10767 .policy = nl80211_policy,
10768 /* can be retrieved by unprivileged users */
10769 .internal_flags = NL80211_FLAG_NEED_WDEV |
10770 NL80211_FLAG_NEED_RTNL,
10773 .cmd = NL80211_CMD_SET_INTERFACE,
10774 .doit = nl80211_set_interface,
10775 .policy = nl80211_policy,
10776 .flags = GENL_ADMIN_PERM,
10777 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10778 NL80211_FLAG_NEED_RTNL,
10781 .cmd = NL80211_CMD_NEW_INTERFACE,
10782 .doit = nl80211_new_interface,
10783 .policy = nl80211_policy,
10784 .flags = GENL_ADMIN_PERM,
10785 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10786 NL80211_FLAG_NEED_RTNL,
10789 .cmd = NL80211_CMD_DEL_INTERFACE,
10790 .doit = nl80211_del_interface,
10791 .policy = nl80211_policy,
10792 .flags = GENL_ADMIN_PERM,
10793 .internal_flags = NL80211_FLAG_NEED_WDEV |
10794 NL80211_FLAG_NEED_RTNL,
10797 .cmd = NL80211_CMD_GET_KEY,
10798 .doit = nl80211_get_key,
10799 .policy = nl80211_policy,
10800 .flags = GENL_ADMIN_PERM,
10801 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10802 NL80211_FLAG_NEED_RTNL,
10805 .cmd = NL80211_CMD_SET_KEY,
10806 .doit = nl80211_set_key,
10807 .policy = nl80211_policy,
10808 .flags = GENL_ADMIN_PERM,
10809 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10810 NL80211_FLAG_NEED_RTNL |
10811 NL80211_FLAG_CLEAR_SKB,
10814 .cmd = NL80211_CMD_NEW_KEY,
10815 .doit = nl80211_new_key,
10816 .policy = nl80211_policy,
10817 .flags = GENL_ADMIN_PERM,
10818 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10819 NL80211_FLAG_NEED_RTNL |
10820 NL80211_FLAG_CLEAR_SKB,
10823 .cmd = NL80211_CMD_DEL_KEY,
10824 .doit = nl80211_del_key,
10825 .policy = nl80211_policy,
10826 .flags = GENL_ADMIN_PERM,
10827 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10828 NL80211_FLAG_NEED_RTNL,
10831 .cmd = NL80211_CMD_SET_BEACON,
10832 .policy = nl80211_policy,
10833 .flags = GENL_ADMIN_PERM,
10834 .doit = nl80211_set_beacon,
10835 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10836 NL80211_FLAG_NEED_RTNL,
10839 .cmd = NL80211_CMD_START_AP,
10840 .policy = nl80211_policy,
10841 .flags = GENL_ADMIN_PERM,
10842 .doit = nl80211_start_ap,
10843 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10844 NL80211_FLAG_NEED_RTNL,
10847 .cmd = NL80211_CMD_STOP_AP,
10848 .policy = nl80211_policy,
10849 .flags = GENL_ADMIN_PERM,
10850 .doit = nl80211_stop_ap,
10851 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10852 NL80211_FLAG_NEED_RTNL,
10855 .cmd = NL80211_CMD_GET_STATION,
10856 .doit = nl80211_get_station,
10857 .dumpit = nl80211_dump_station,
10858 .policy = nl80211_policy,
10859 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10860 NL80211_FLAG_NEED_RTNL,
10863 .cmd = NL80211_CMD_SET_STATION,
10864 .doit = nl80211_set_station,
10865 .policy = nl80211_policy,
10866 .flags = GENL_ADMIN_PERM,
10867 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10868 NL80211_FLAG_NEED_RTNL,
10871 .cmd = NL80211_CMD_NEW_STATION,
10872 .doit = nl80211_new_station,
10873 .policy = nl80211_policy,
10874 .flags = GENL_ADMIN_PERM,
10875 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10876 NL80211_FLAG_NEED_RTNL,
10879 .cmd = NL80211_CMD_DEL_STATION,
10880 .doit = nl80211_del_station,
10881 .policy = nl80211_policy,
10882 .flags = GENL_ADMIN_PERM,
10883 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10884 NL80211_FLAG_NEED_RTNL,
10887 .cmd = NL80211_CMD_GET_MPATH,
10888 .doit = nl80211_get_mpath,
10889 .dumpit = nl80211_dump_mpath,
10890 .policy = nl80211_policy,
10891 .flags = GENL_ADMIN_PERM,
10892 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10893 NL80211_FLAG_NEED_RTNL,
10896 .cmd = NL80211_CMD_GET_MPP,
10897 .doit = nl80211_get_mpp,
10898 .dumpit = nl80211_dump_mpp,
10899 .policy = nl80211_policy,
10900 .flags = GENL_ADMIN_PERM,
10901 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10902 NL80211_FLAG_NEED_RTNL,
10905 .cmd = NL80211_CMD_SET_MPATH,
10906 .doit = nl80211_set_mpath,
10907 .policy = nl80211_policy,
10908 .flags = GENL_ADMIN_PERM,
10909 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10910 NL80211_FLAG_NEED_RTNL,
10913 .cmd = NL80211_CMD_NEW_MPATH,
10914 .doit = nl80211_new_mpath,
10915 .policy = nl80211_policy,
10916 .flags = GENL_ADMIN_PERM,
10917 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10918 NL80211_FLAG_NEED_RTNL,
10921 .cmd = NL80211_CMD_DEL_MPATH,
10922 .doit = nl80211_del_mpath,
10923 .policy = nl80211_policy,
10924 .flags = GENL_ADMIN_PERM,
10925 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10926 NL80211_FLAG_NEED_RTNL,
10929 .cmd = NL80211_CMD_SET_BSS,
10930 .doit = nl80211_set_bss,
10931 .policy = nl80211_policy,
10932 .flags = GENL_ADMIN_PERM,
10933 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10934 NL80211_FLAG_NEED_RTNL,
10937 .cmd = NL80211_CMD_GET_REG,
10938 .doit = nl80211_get_reg_do,
10939 .dumpit = nl80211_get_reg_dump,
10940 .policy = nl80211_policy,
10941 .internal_flags = NL80211_FLAG_NEED_RTNL,
10942 /* can be retrieved by unprivileged users */
10944 #ifdef CONFIG_CFG80211_CRDA_SUPPORT
10946 .cmd = NL80211_CMD_SET_REG,
10947 .doit = nl80211_set_reg,
10948 .policy = nl80211_policy,
10949 .flags = GENL_ADMIN_PERM,
10950 .internal_flags = NL80211_FLAG_NEED_RTNL,
10954 .cmd = NL80211_CMD_REQ_SET_REG,
10955 .doit = nl80211_req_set_reg,
10956 .policy = nl80211_policy,
10957 .flags = GENL_ADMIN_PERM,
10960 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10961 .doit = nl80211_get_mesh_config,
10962 .policy = nl80211_policy,
10963 /* can be retrieved by unprivileged users */
10964 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10965 NL80211_FLAG_NEED_RTNL,
10968 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10969 .doit = nl80211_update_mesh_config,
10970 .policy = nl80211_policy,
10971 .flags = GENL_ADMIN_PERM,
10972 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10973 NL80211_FLAG_NEED_RTNL,
10976 .cmd = NL80211_CMD_TRIGGER_SCAN,
10977 .doit = nl80211_trigger_scan,
10978 .policy = nl80211_policy,
10979 .flags = GENL_ADMIN_PERM,
10980 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10981 NL80211_FLAG_NEED_RTNL,
10984 .cmd = NL80211_CMD_ABORT_SCAN,
10985 .doit = nl80211_abort_scan,
10986 .policy = nl80211_policy,
10987 .flags = GENL_ADMIN_PERM,
10988 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10989 NL80211_FLAG_NEED_RTNL,
10992 .cmd = NL80211_CMD_GET_SCAN,
10993 .policy = nl80211_policy,
10994 .dumpit = nl80211_dump_scan,
10997 .cmd = NL80211_CMD_START_SCHED_SCAN,
10998 .doit = nl80211_start_sched_scan,
10999 .policy = nl80211_policy,
11000 .flags = GENL_ADMIN_PERM,
11001 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11002 NL80211_FLAG_NEED_RTNL,
11005 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
11006 .doit = nl80211_stop_sched_scan,
11007 .policy = nl80211_policy,
11008 .flags = GENL_ADMIN_PERM,
11009 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11010 NL80211_FLAG_NEED_RTNL,
11013 .cmd = NL80211_CMD_AUTHENTICATE,
11014 .doit = nl80211_authenticate,
11015 .policy = nl80211_policy,
11016 .flags = GENL_ADMIN_PERM,
11017 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11018 NL80211_FLAG_NEED_RTNL |
11019 NL80211_FLAG_CLEAR_SKB,
11022 .cmd = NL80211_CMD_ASSOCIATE,
11023 .doit = nl80211_associate,
11024 .policy = nl80211_policy,
11025 .flags = GENL_ADMIN_PERM,
11026 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11027 NL80211_FLAG_NEED_RTNL,
11030 .cmd = NL80211_CMD_DEAUTHENTICATE,
11031 .doit = nl80211_deauthenticate,
11032 .policy = nl80211_policy,
11033 .flags = GENL_ADMIN_PERM,
11034 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11035 NL80211_FLAG_NEED_RTNL,
11038 .cmd = NL80211_CMD_DISASSOCIATE,
11039 .doit = nl80211_disassociate,
11040 .policy = nl80211_policy,
11041 .flags = GENL_ADMIN_PERM,
11042 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11043 NL80211_FLAG_NEED_RTNL,
11046 .cmd = NL80211_CMD_JOIN_IBSS,
11047 .doit = nl80211_join_ibss,
11048 .policy = nl80211_policy,
11049 .flags = GENL_ADMIN_PERM,
11050 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11051 NL80211_FLAG_NEED_RTNL,
11054 .cmd = NL80211_CMD_LEAVE_IBSS,
11055 .doit = nl80211_leave_ibss,
11056 .policy = nl80211_policy,
11057 .flags = GENL_ADMIN_PERM,
11058 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11059 NL80211_FLAG_NEED_RTNL,
11061 #ifdef CONFIG_NL80211_TESTMODE
11063 .cmd = NL80211_CMD_TESTMODE,
11064 .doit = nl80211_testmode_do,
11065 .dumpit = nl80211_testmode_dump,
11066 .policy = nl80211_policy,
11067 .flags = GENL_ADMIN_PERM,
11068 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11069 NL80211_FLAG_NEED_RTNL,
11073 .cmd = NL80211_CMD_CONNECT,
11074 .doit = nl80211_connect,
11075 .policy = nl80211_policy,
11076 .flags = GENL_ADMIN_PERM,
11077 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11078 NL80211_FLAG_NEED_RTNL,
11081 .cmd = NL80211_CMD_DISCONNECT,
11082 .doit = nl80211_disconnect,
11083 .policy = nl80211_policy,
11084 .flags = GENL_ADMIN_PERM,
11085 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11086 NL80211_FLAG_NEED_RTNL,
11089 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
11090 .doit = nl80211_wiphy_netns,
11091 .policy = nl80211_policy,
11092 .flags = GENL_ADMIN_PERM,
11093 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11094 NL80211_FLAG_NEED_RTNL,
11097 .cmd = NL80211_CMD_GET_SURVEY,
11098 .policy = nl80211_policy,
11099 .dumpit = nl80211_dump_survey,
11102 .cmd = NL80211_CMD_SET_PMKSA,
11103 .doit = nl80211_setdel_pmksa,
11104 .policy = nl80211_policy,
11105 .flags = GENL_ADMIN_PERM,
11106 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11107 NL80211_FLAG_NEED_RTNL,
11110 .cmd = NL80211_CMD_DEL_PMKSA,
11111 .doit = nl80211_setdel_pmksa,
11112 .policy = nl80211_policy,
11113 .flags = GENL_ADMIN_PERM,
11114 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11115 NL80211_FLAG_NEED_RTNL,
11118 .cmd = NL80211_CMD_FLUSH_PMKSA,
11119 .doit = nl80211_flush_pmksa,
11120 .policy = nl80211_policy,
11121 .flags = GENL_ADMIN_PERM,
11122 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11123 NL80211_FLAG_NEED_RTNL,
11126 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
11127 .doit = nl80211_remain_on_channel,
11128 .policy = nl80211_policy,
11129 .flags = GENL_ADMIN_PERM,
11130 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11131 NL80211_FLAG_NEED_RTNL,
11134 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11135 .doit = nl80211_cancel_remain_on_channel,
11136 .policy = nl80211_policy,
11137 .flags = GENL_ADMIN_PERM,
11138 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11139 NL80211_FLAG_NEED_RTNL,
11142 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
11143 .doit = nl80211_set_tx_bitrate_mask,
11144 .policy = nl80211_policy,
11145 .flags = GENL_ADMIN_PERM,
11146 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11147 NL80211_FLAG_NEED_RTNL,
11150 .cmd = NL80211_CMD_REGISTER_FRAME,
11151 .doit = nl80211_register_mgmt,
11152 .policy = nl80211_policy,
11153 .flags = GENL_ADMIN_PERM,
11154 .internal_flags = NL80211_FLAG_NEED_WDEV |
11155 NL80211_FLAG_NEED_RTNL,
11158 .cmd = NL80211_CMD_FRAME,
11159 .doit = nl80211_tx_mgmt,
11160 .policy = nl80211_policy,
11161 .flags = GENL_ADMIN_PERM,
11162 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11163 NL80211_FLAG_NEED_RTNL,
11166 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
11167 .doit = nl80211_tx_mgmt_cancel_wait,
11168 .policy = nl80211_policy,
11169 .flags = GENL_ADMIN_PERM,
11170 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11171 NL80211_FLAG_NEED_RTNL,
11174 .cmd = NL80211_CMD_SET_POWER_SAVE,
11175 .doit = nl80211_set_power_save,
11176 .policy = nl80211_policy,
11177 .flags = GENL_ADMIN_PERM,
11178 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11179 NL80211_FLAG_NEED_RTNL,
11182 .cmd = NL80211_CMD_GET_POWER_SAVE,
11183 .doit = nl80211_get_power_save,
11184 .policy = nl80211_policy,
11185 /* can be retrieved by unprivileged users */
11186 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11187 NL80211_FLAG_NEED_RTNL,
11190 .cmd = NL80211_CMD_SET_CQM,
11191 .doit = nl80211_set_cqm,
11192 .policy = nl80211_policy,
11193 .flags = GENL_ADMIN_PERM,
11194 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11195 NL80211_FLAG_NEED_RTNL,
11198 .cmd = NL80211_CMD_SET_CHANNEL,
11199 .doit = nl80211_set_channel,
11200 .policy = nl80211_policy,
11201 .flags = GENL_ADMIN_PERM,
11202 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11203 NL80211_FLAG_NEED_RTNL,
11206 .cmd = NL80211_CMD_SET_WDS_PEER,
11207 .doit = nl80211_set_wds_peer,
11208 .policy = nl80211_policy,
11209 .flags = GENL_ADMIN_PERM,
11210 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11211 NL80211_FLAG_NEED_RTNL,
11214 .cmd = NL80211_CMD_JOIN_MESH,
11215 .doit = nl80211_join_mesh,
11216 .policy = nl80211_policy,
11217 .flags = GENL_ADMIN_PERM,
11218 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11219 NL80211_FLAG_NEED_RTNL,
11222 .cmd = NL80211_CMD_LEAVE_MESH,
11223 .doit = nl80211_leave_mesh,
11224 .policy = nl80211_policy,
11225 .flags = GENL_ADMIN_PERM,
11226 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11227 NL80211_FLAG_NEED_RTNL,
11230 .cmd = NL80211_CMD_JOIN_OCB,
11231 .doit = nl80211_join_ocb,
11232 .policy = nl80211_policy,
11233 .flags = GENL_ADMIN_PERM,
11234 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11235 NL80211_FLAG_NEED_RTNL,
11238 .cmd = NL80211_CMD_LEAVE_OCB,
11239 .doit = nl80211_leave_ocb,
11240 .policy = nl80211_policy,
11241 .flags = GENL_ADMIN_PERM,
11242 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11243 NL80211_FLAG_NEED_RTNL,
11247 .cmd = NL80211_CMD_GET_WOWLAN,
11248 .doit = nl80211_get_wowlan,
11249 .policy = nl80211_policy,
11250 /* can be retrieved by unprivileged users */
11251 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11252 NL80211_FLAG_NEED_RTNL,
11255 .cmd = NL80211_CMD_SET_WOWLAN,
11256 .doit = nl80211_set_wowlan,
11257 .policy = nl80211_policy,
11258 .flags = GENL_ADMIN_PERM,
11259 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11260 NL80211_FLAG_NEED_RTNL,
11264 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
11265 .doit = nl80211_set_rekey_data,
11266 .policy = nl80211_policy,
11267 .flags = GENL_ADMIN_PERM,
11268 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11269 NL80211_FLAG_NEED_RTNL |
11270 NL80211_FLAG_CLEAR_SKB,
11273 .cmd = NL80211_CMD_TDLS_MGMT,
11274 .doit = nl80211_tdls_mgmt,
11275 .policy = nl80211_policy,
11276 .flags = GENL_ADMIN_PERM,
11277 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11278 NL80211_FLAG_NEED_RTNL,
11281 .cmd = NL80211_CMD_TDLS_OPER,
11282 .doit = nl80211_tdls_oper,
11283 .policy = nl80211_policy,
11284 .flags = GENL_ADMIN_PERM,
11285 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11286 NL80211_FLAG_NEED_RTNL,
11289 .cmd = NL80211_CMD_UNEXPECTED_FRAME,
11290 .doit = nl80211_register_unexpected_frame,
11291 .policy = nl80211_policy,
11292 .flags = GENL_ADMIN_PERM,
11293 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11294 NL80211_FLAG_NEED_RTNL,
11297 .cmd = NL80211_CMD_PROBE_CLIENT,
11298 .doit = nl80211_probe_client,
11299 .policy = nl80211_policy,
11300 .flags = GENL_ADMIN_PERM,
11301 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11302 NL80211_FLAG_NEED_RTNL,
11305 .cmd = NL80211_CMD_REGISTER_BEACONS,
11306 .doit = nl80211_register_beacons,
11307 .policy = nl80211_policy,
11308 .flags = GENL_ADMIN_PERM,
11309 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11310 NL80211_FLAG_NEED_RTNL,
11313 .cmd = NL80211_CMD_SET_NOACK_MAP,
11314 .doit = nl80211_set_noack_map,
11315 .policy = nl80211_policy,
11316 .flags = GENL_ADMIN_PERM,
11317 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11318 NL80211_FLAG_NEED_RTNL,
11321 .cmd = NL80211_CMD_START_P2P_DEVICE,
11322 .doit = nl80211_start_p2p_device,
11323 .policy = nl80211_policy,
11324 .flags = GENL_ADMIN_PERM,
11325 .internal_flags = NL80211_FLAG_NEED_WDEV |
11326 NL80211_FLAG_NEED_RTNL,
11329 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
11330 .doit = nl80211_stop_p2p_device,
11331 .policy = nl80211_policy,
11332 .flags = GENL_ADMIN_PERM,
11333 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11334 NL80211_FLAG_NEED_RTNL,
11337 .cmd = NL80211_CMD_SET_MCAST_RATE,
11338 .doit = nl80211_set_mcast_rate,
11339 .policy = nl80211_policy,
11340 .flags = GENL_ADMIN_PERM,
11341 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11342 NL80211_FLAG_NEED_RTNL,
11345 .cmd = NL80211_CMD_SET_MAC_ACL,
11346 .doit = nl80211_set_mac_acl,
11347 .policy = nl80211_policy,
11348 .flags = GENL_ADMIN_PERM,
11349 .internal_flags = NL80211_FLAG_NEED_NETDEV |
11350 NL80211_FLAG_NEED_RTNL,
11353 .cmd = NL80211_CMD_RADAR_DETECT,
11354 .doit = nl80211_start_radar_detection,
11355 .policy = nl80211_policy,
11356 .flags = GENL_ADMIN_PERM,
11357 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11358 NL80211_FLAG_NEED_RTNL,
11361 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
11362 .doit = nl80211_get_protocol_features,
11363 .policy = nl80211_policy,
11366 .cmd = NL80211_CMD_UPDATE_FT_IES,
11367 .doit = nl80211_update_ft_ies,
11368 .policy = nl80211_policy,
11369 .flags = GENL_ADMIN_PERM,
11370 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11371 NL80211_FLAG_NEED_RTNL,
11374 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
11375 .doit = nl80211_crit_protocol_start,
11376 .policy = nl80211_policy,
11377 .flags = GENL_ADMIN_PERM,
11378 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11379 NL80211_FLAG_NEED_RTNL,
11382 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
11383 .doit = nl80211_crit_protocol_stop,
11384 .policy = nl80211_policy,
11385 .flags = GENL_ADMIN_PERM,
11386 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
11387 NL80211_FLAG_NEED_RTNL,
11390 .cmd = NL80211_CMD_GET_COALESCE,
11391 .doit = nl80211_get_coalesce,
11392 .policy = nl80211_policy,
11393 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11394 NL80211_FLAG_NEED_RTNL,
11397 .cmd = NL80211_CMD_SET_COALESCE,
11398 .doit = nl80211_set_coalesce,
11399 .policy = nl80211_policy,
11400 .flags = GENL_ADMIN_PERM,
11401 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11402 NL80211_FLAG_NEED_RTNL,
11405 .cmd = NL80211_CMD_CHANNEL_SWITCH,
11406 .doit = nl80211_channel_switch,
11407 .policy = nl80211_policy,
11408 .flags = GENL_ADMIN_PERM,
11409 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11410 NL80211_FLAG_NEED_RTNL,
11413 .cmd = NL80211_CMD_VENDOR,
11414 .doit = nl80211_vendor_cmd,
11415 .dumpit = nl80211_vendor_cmd_dump,
11416 .policy = nl80211_policy,
11417 .flags = GENL_ADMIN_PERM,
11418 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11419 NL80211_FLAG_NEED_RTNL,
11422 .cmd = NL80211_CMD_SET_QOS_MAP,
11423 .doit = nl80211_set_qos_map,
11424 .policy = nl80211_policy,
11425 .flags = GENL_ADMIN_PERM,
11426 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11427 NL80211_FLAG_NEED_RTNL,
11430 .cmd = NL80211_CMD_ADD_TX_TS,
11431 .doit = nl80211_add_tx_ts,
11432 .policy = nl80211_policy,
11433 .flags = GENL_ADMIN_PERM,
11434 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11435 NL80211_FLAG_NEED_RTNL,
11438 .cmd = NL80211_CMD_DEL_TX_TS,
11439 .doit = nl80211_del_tx_ts,
11440 .policy = nl80211_policy,
11441 .flags = GENL_ADMIN_PERM,
11442 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11443 NL80211_FLAG_NEED_RTNL,
11446 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11447 .doit = nl80211_tdls_channel_switch,
11448 .policy = nl80211_policy,
11449 .flags = GENL_ADMIN_PERM,
11450 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11451 NL80211_FLAG_NEED_RTNL,
11454 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11455 .doit = nl80211_tdls_cancel_channel_switch,
11456 .policy = nl80211_policy,
11457 .flags = GENL_ADMIN_PERM,
11458 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11459 NL80211_FLAG_NEED_RTNL,
11463 /* notification functions */
11465 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11466 enum nl80211_commands cmd)
11468 struct sk_buff *msg;
11469 struct nl80211_dump_wiphy_state state = {};
11471 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11472 cmd != NL80211_CMD_DEL_WIPHY);
11474 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11478 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11483 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11484 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11487 static int nl80211_add_scan_req(struct sk_buff *msg,
11488 struct cfg80211_registered_device *rdev)
11490 struct cfg80211_scan_request *req = rdev->scan_req;
11491 struct nlattr *nest;
11497 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11499 goto nla_put_failure;
11500 for (i = 0; i < req->n_ssids; i++) {
11501 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11502 goto nla_put_failure;
11504 nla_nest_end(msg, nest);
11506 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11508 goto nla_put_failure;
11509 for (i = 0; i < req->n_channels; i++) {
11510 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11511 goto nla_put_failure;
11513 nla_nest_end(msg, nest);
11516 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11517 goto nla_put_failure;
11520 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11521 goto nla_put_failure;
11528 static int nl80211_send_scan_msg(struct sk_buff *msg,
11529 struct cfg80211_registered_device *rdev,
11530 struct wireless_dev *wdev,
11531 u32 portid, u32 seq, int flags,
11536 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11540 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11541 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11542 wdev->netdev->ifindex)) ||
11543 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11544 goto nla_put_failure;
11546 /* ignore errors and send incomplete event anyway */
11547 nl80211_add_scan_req(msg, rdev);
11549 genlmsg_end(msg, hdr);
11553 genlmsg_cancel(msg, hdr);
11558 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11559 struct cfg80211_registered_device *rdev,
11560 struct net_device *netdev,
11561 u32 portid, u32 seq, int flags, u32 cmd)
11565 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11569 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11570 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11571 goto nla_put_failure;
11573 genlmsg_end(msg, hdr);
11577 genlmsg_cancel(msg, hdr);
11581 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11582 struct wireless_dev *wdev)
11584 struct sk_buff *msg;
11586 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11590 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11591 NL80211_CMD_TRIGGER_SCAN) < 0) {
11596 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11597 NL80211_MCGRP_SCAN, GFP_KERNEL);
11600 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11601 struct wireless_dev *wdev, bool aborted)
11603 struct sk_buff *msg;
11605 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11609 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11610 aborted ? NL80211_CMD_SCAN_ABORTED :
11611 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11619 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11620 struct sk_buff *msg)
11625 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11626 NL80211_MCGRP_SCAN, GFP_KERNEL);
11629 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11630 struct net_device *netdev)
11632 struct sk_buff *msg;
11634 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11638 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11639 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11644 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11645 NL80211_MCGRP_SCAN, GFP_KERNEL);
11648 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11649 struct net_device *netdev, u32 cmd)
11651 struct sk_buff *msg;
11653 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11657 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11662 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11663 NL80211_MCGRP_SCAN, GFP_KERNEL);
11666 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11667 struct regulatory_request *request)
11669 /* Userspace can always count this one always being set */
11670 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11671 goto nla_put_failure;
11673 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11674 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11675 NL80211_REGDOM_TYPE_WORLD))
11676 goto nla_put_failure;
11677 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11678 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11679 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11680 goto nla_put_failure;
11681 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11682 request->intersect) {
11683 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11684 NL80211_REGDOM_TYPE_INTERSECTION))
11685 goto nla_put_failure;
11687 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11688 NL80211_REGDOM_TYPE_COUNTRY) ||
11689 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11691 goto nla_put_failure;
11694 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11695 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11698 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11699 goto nla_put_failure;
11702 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11703 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11704 goto nla_put_failure;
11714 * This can happen on global regulatory changes or device specific settings
11715 * based on custom regulatory domains.
11717 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11718 struct regulatory_request *request)
11720 struct sk_buff *msg;
11723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11727 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11733 if (nl80211_reg_change_event_fill(msg, request) == false)
11734 goto nla_put_failure;
11736 genlmsg_end(msg, hdr);
11739 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11740 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11746 genlmsg_cancel(msg, hdr);
11750 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11751 struct net_device *netdev,
11752 const u8 *buf, size_t len,
11753 enum nl80211_commands cmd, gfp_t gfp,
11756 struct sk_buff *msg;
11759 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11763 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11769 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11770 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11771 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11772 goto nla_put_failure;
11774 if (uapsd_queues >= 0) {
11775 struct nlattr *nla_wmm =
11776 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11778 goto nla_put_failure;
11780 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11782 goto nla_put_failure;
11784 nla_nest_end(msg, nla_wmm);
11787 genlmsg_end(msg, hdr);
11789 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11790 NL80211_MCGRP_MLME, gfp);
11794 genlmsg_cancel(msg, hdr);
11798 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11799 struct net_device *netdev, const u8 *buf,
11800 size_t len, gfp_t gfp)
11802 nl80211_send_mlme_event(rdev, netdev, buf, len,
11803 NL80211_CMD_AUTHENTICATE, gfp, -1);
11806 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11807 struct net_device *netdev, const u8 *buf,
11808 size_t len, gfp_t gfp, int uapsd_queues)
11810 nl80211_send_mlme_event(rdev, netdev, buf, len,
11811 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11814 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11815 struct net_device *netdev, const u8 *buf,
11816 size_t len, gfp_t gfp)
11818 nl80211_send_mlme_event(rdev, netdev, buf, len,
11819 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11822 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11823 struct net_device *netdev, const u8 *buf,
11824 size_t len, gfp_t gfp)
11826 nl80211_send_mlme_event(rdev, netdev, buf, len,
11827 NL80211_CMD_DISASSOCIATE, gfp, -1);
11830 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11833 struct wireless_dev *wdev = dev->ieee80211_ptr;
11834 struct wiphy *wiphy = wdev->wiphy;
11835 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11836 const struct ieee80211_mgmt *mgmt = (void *)buf;
11839 if (WARN_ON(len < 2))
11842 if (ieee80211_is_deauth(mgmt->frame_control))
11843 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11845 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11847 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11848 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11850 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11852 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11853 struct net_device *netdev, int cmd,
11854 const u8 *addr, gfp_t gfp)
11856 struct sk_buff *msg;
11859 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11863 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11869 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11870 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11871 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11872 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11873 goto nla_put_failure;
11875 genlmsg_end(msg, hdr);
11877 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11878 NL80211_MCGRP_MLME, gfp);
11882 genlmsg_cancel(msg, hdr);
11886 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11887 struct net_device *netdev, const u8 *addr,
11890 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11894 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11895 struct net_device *netdev, const u8 *addr,
11898 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11902 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11903 struct net_device *netdev, const u8 *bssid,
11904 const u8 *req_ie, size_t req_ie_len,
11905 const u8 *resp_ie, size_t resp_ie_len,
11906 u16 status, gfp_t gfp)
11908 struct sk_buff *msg;
11911 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11915 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11921 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11922 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11923 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11924 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11926 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11928 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11929 goto nla_put_failure;
11931 genlmsg_end(msg, hdr);
11933 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11934 NL80211_MCGRP_MLME, gfp);
11938 genlmsg_cancel(msg, hdr);
11943 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11944 struct net_device *netdev, const u8 *bssid,
11945 const u8 *req_ie, size_t req_ie_len,
11946 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11948 struct sk_buff *msg;
11951 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11955 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11961 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11962 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11963 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11965 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11967 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11968 goto nla_put_failure;
11970 genlmsg_end(msg, hdr);
11972 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11973 NL80211_MCGRP_MLME, gfp);
11977 genlmsg_cancel(msg, hdr);
11982 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11983 struct net_device *netdev, u16 reason,
11984 const u8 *ie, size_t ie_len, bool from_ap)
11986 struct sk_buff *msg;
11989 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11993 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11999 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12000 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12001 (from_ap && reason &&
12002 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
12004 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
12005 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
12006 goto nla_put_failure;
12008 genlmsg_end(msg, hdr);
12010 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12011 NL80211_MCGRP_MLME, GFP_KERNEL);
12015 genlmsg_cancel(msg, hdr);
12020 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
12021 struct net_device *netdev, const u8 *bssid,
12024 struct sk_buff *msg;
12027 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12031 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
12037 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12038 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12039 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12040 goto nla_put_failure;
12042 genlmsg_end(msg, hdr);
12044 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12045 NL80211_MCGRP_MLME, gfp);
12049 genlmsg_cancel(msg, hdr);
12053 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
12054 const u8* ie, u8 ie_len, gfp_t gfp)
12056 struct wireless_dev *wdev = dev->ieee80211_ptr;
12057 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12058 struct sk_buff *msg;
12061 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
12064 trace_cfg80211_notify_new_peer_candidate(dev, addr);
12066 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12070 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
12076 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12077 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12078 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12080 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
12081 goto nla_put_failure;
12083 genlmsg_end(msg, hdr);
12085 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12086 NL80211_MCGRP_MLME, gfp);
12090 genlmsg_cancel(msg, hdr);
12093 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
12095 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
12096 struct net_device *netdev, const u8 *addr,
12097 enum nl80211_key_type key_type, int key_id,
12098 const u8 *tsc, gfp_t gfp)
12100 struct sk_buff *msg;
12103 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12107 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
12113 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12114 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12115 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
12116 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
12118 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
12119 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
12120 goto nla_put_failure;
12122 genlmsg_end(msg, hdr);
12124 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12125 NL80211_MCGRP_MLME, gfp);
12129 genlmsg_cancel(msg, hdr);
12133 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
12134 struct ieee80211_channel *channel_before,
12135 struct ieee80211_channel *channel_after)
12137 struct sk_buff *msg;
12139 struct nlattr *nl_freq;
12141 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
12145 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
12152 * Since we are applying the beacon hint to a wiphy we know its
12153 * wiphy_idx is valid
12155 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
12156 goto nla_put_failure;
12159 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
12161 goto nla_put_failure;
12162 if (nl80211_msg_put_channel(msg, channel_before, false))
12163 goto nla_put_failure;
12164 nla_nest_end(msg, nl_freq);
12167 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
12169 goto nla_put_failure;
12170 if (nl80211_msg_put_channel(msg, channel_after, false))
12171 goto nla_put_failure;
12172 nla_nest_end(msg, nl_freq);
12174 genlmsg_end(msg, hdr);
12177 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
12178 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
12184 genlmsg_cancel(msg, hdr);
12188 static void nl80211_send_remain_on_chan_event(
12189 int cmd, struct cfg80211_registered_device *rdev,
12190 struct wireless_dev *wdev, u64 cookie,
12191 struct ieee80211_channel *chan,
12192 unsigned int duration, gfp_t gfp)
12194 struct sk_buff *msg;
12197 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12201 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12207 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12208 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12209 wdev->netdev->ifindex)) ||
12210 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12211 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
12212 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
12213 NL80211_CHAN_NO_HT) ||
12214 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
12215 goto nla_put_failure;
12217 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
12218 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
12219 goto nla_put_failure;
12221 genlmsg_end(msg, hdr);
12223 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12224 NL80211_MCGRP_MLME, gfp);
12228 genlmsg_cancel(msg, hdr);
12232 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
12233 struct ieee80211_channel *chan,
12234 unsigned int duration, gfp_t gfp)
12236 struct wiphy *wiphy = wdev->wiphy;
12237 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12239 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
12240 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
12241 rdev, wdev, cookie, chan,
12244 EXPORT_SYMBOL(cfg80211_ready_on_channel);
12246 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
12247 struct ieee80211_channel *chan,
12250 struct wiphy *wiphy = wdev->wiphy;
12251 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12253 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
12254 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
12255 rdev, wdev, cookie, chan, 0, gfp);
12257 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
12259 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
12260 struct station_info *sinfo, gfp_t gfp)
12262 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12263 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12264 struct sk_buff *msg;
12266 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
12268 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12272 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
12273 rdev, dev, mac_addr, sinfo) < 0) {
12278 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12279 NL80211_MCGRP_MLME, gfp);
12281 EXPORT_SYMBOL(cfg80211_new_sta);
12283 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
12284 struct station_info *sinfo, gfp_t gfp)
12286 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12287 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12288 struct sk_buff *msg;
12289 struct station_info empty_sinfo = {};
12292 sinfo = &empty_sinfo;
12294 trace_cfg80211_del_sta(dev, mac_addr);
12296 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12300 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
12301 rdev, dev, mac_addr, sinfo) < 0) {
12306 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12307 NL80211_MCGRP_MLME, gfp);
12309 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
12311 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
12312 enum nl80211_connect_failed_reason reason,
12315 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
12316 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12317 struct sk_buff *msg;
12320 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
12324 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
12330 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12331 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
12332 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
12333 goto nla_put_failure;
12335 genlmsg_end(msg, hdr);
12337 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12338 NL80211_MCGRP_MLME, gfp);
12342 genlmsg_cancel(msg, hdr);
12345 EXPORT_SYMBOL(cfg80211_conn_failed);
12347 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
12348 const u8 *addr, gfp_t gfp)
12350 struct wireless_dev *wdev = dev->ieee80211_ptr;
12351 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12352 struct sk_buff *msg;
12354 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
12359 msg = nlmsg_new(100, gfp);
12363 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
12369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12370 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12371 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
12372 goto nla_put_failure;
12374 genlmsg_end(msg, hdr);
12375 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12379 genlmsg_cancel(msg, hdr);
12384 bool cfg80211_rx_spurious_frame(struct net_device *dev,
12385 const u8 *addr, gfp_t gfp)
12387 struct wireless_dev *wdev = dev->ieee80211_ptr;
12390 trace_cfg80211_rx_spurious_frame(dev, addr);
12392 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12393 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
12394 trace_cfg80211_return_bool(false);
12397 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
12399 trace_cfg80211_return_bool(ret);
12402 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
12404 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
12405 const u8 *addr, gfp_t gfp)
12407 struct wireless_dev *wdev = dev->ieee80211_ptr;
12410 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
12412 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
12413 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
12414 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
12415 trace_cfg80211_return_bool(false);
12418 ret = __nl80211_unexpected_frame(dev,
12419 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12421 trace_cfg80211_return_bool(ret);
12424 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12426 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12427 struct wireless_dev *wdev, u32 nlportid,
12428 int freq, int sig_dbm,
12429 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12431 struct net_device *netdev = wdev->netdev;
12432 struct sk_buff *msg;
12435 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12439 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12445 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12446 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12447 netdev->ifindex)) ||
12448 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12449 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12451 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12452 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12454 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12455 goto nla_put_failure;
12457 genlmsg_end(msg, hdr);
12459 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12462 genlmsg_cancel(msg, hdr);
12467 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12468 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12470 struct wiphy *wiphy = wdev->wiphy;
12471 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12472 struct net_device *netdev = wdev->netdev;
12473 struct sk_buff *msg;
12476 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12478 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12482 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12488 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12489 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12490 netdev->ifindex)) ||
12491 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12492 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12493 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12494 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12495 goto nla_put_failure;
12497 genlmsg_end(msg, hdr);
12499 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12500 NL80211_MCGRP_MLME, gfp);
12504 genlmsg_cancel(msg, hdr);
12507 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12509 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12510 const char *mac, gfp_t gfp)
12512 struct wireless_dev *wdev = dev->ieee80211_ptr;
12513 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12514 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12520 cb = (void **)msg->cb;
12522 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12528 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12529 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12530 goto nla_put_failure;
12532 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12533 goto nla_put_failure;
12535 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12537 goto nla_put_failure;
12547 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12549 void **cb = (void **)msg->cb;
12550 struct cfg80211_registered_device *rdev = cb[2];
12552 nla_nest_end(msg, cb[1]);
12553 genlmsg_end(msg, cb[0]);
12555 memset(msg->cb, 0, sizeof(msg->cb));
12557 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12558 NL80211_MCGRP_MLME, gfp);
12561 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12562 enum nl80211_cqm_rssi_threshold_event rssi_event,
12565 struct sk_buff *msg;
12567 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12569 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12570 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12573 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12577 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12579 goto nla_put_failure;
12581 cfg80211_send_cqm(msg, gfp);
12588 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12590 void cfg80211_cqm_txe_notify(struct net_device *dev,
12591 const u8 *peer, u32 num_packets,
12592 u32 rate, u32 intvl, gfp_t gfp)
12594 struct sk_buff *msg;
12596 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12600 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12601 goto nla_put_failure;
12603 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12604 goto nla_put_failure;
12606 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12607 goto nla_put_failure;
12609 cfg80211_send_cqm(msg, gfp);
12615 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12617 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12618 const u8 *peer, u32 num_packets, gfp_t gfp)
12620 struct sk_buff *msg;
12622 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12624 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12628 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12629 goto nla_put_failure;
12631 cfg80211_send_cqm(msg, gfp);
12637 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12639 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12641 struct sk_buff *msg;
12643 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12647 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12648 goto nla_put_failure;
12650 cfg80211_send_cqm(msg, gfp);
12656 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12658 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12659 struct net_device *netdev, const u8 *bssid,
12660 const u8 *replay_ctr, gfp_t gfp)
12662 struct sk_buff *msg;
12663 struct nlattr *rekey_attr;
12666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12670 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12676 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12677 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12678 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12679 goto nla_put_failure;
12681 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12683 goto nla_put_failure;
12685 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12686 NL80211_REPLAY_CTR_LEN, replay_ctr))
12687 goto nla_put_failure;
12689 nla_nest_end(msg, rekey_attr);
12691 genlmsg_end(msg, hdr);
12693 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12694 NL80211_MCGRP_MLME, gfp);
12698 genlmsg_cancel(msg, hdr);
12702 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12703 const u8 *replay_ctr, gfp_t gfp)
12705 struct wireless_dev *wdev = dev->ieee80211_ptr;
12706 struct wiphy *wiphy = wdev->wiphy;
12707 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12709 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12710 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12712 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12715 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12716 struct net_device *netdev, int index,
12717 const u8 *bssid, bool preauth, gfp_t gfp)
12719 struct sk_buff *msg;
12720 struct nlattr *attr;
12723 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12727 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12733 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12734 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12735 goto nla_put_failure;
12737 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12739 goto nla_put_failure;
12741 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12742 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12744 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12745 goto nla_put_failure;
12747 nla_nest_end(msg, attr);
12749 genlmsg_end(msg, hdr);
12751 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12752 NL80211_MCGRP_MLME, gfp);
12756 genlmsg_cancel(msg, hdr);
12760 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12761 const u8 *bssid, bool preauth, gfp_t gfp)
12763 struct wireless_dev *wdev = dev->ieee80211_ptr;
12764 struct wiphy *wiphy = wdev->wiphy;
12765 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12767 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12768 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12770 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12772 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12773 struct net_device *netdev,
12774 struct cfg80211_chan_def *chandef,
12776 enum nl80211_commands notif,
12779 struct sk_buff *msg;
12782 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12786 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12792 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12793 goto nla_put_failure;
12795 if (nl80211_send_chandef(msg, chandef))
12796 goto nla_put_failure;
12798 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12799 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12800 goto nla_put_failure;
12802 genlmsg_end(msg, hdr);
12804 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12805 NL80211_MCGRP_MLME, gfp);
12809 genlmsg_cancel(msg, hdr);
12813 void cfg80211_ch_switch_notify(struct net_device *dev,
12814 struct cfg80211_chan_def *chandef)
12816 struct wireless_dev *wdev = dev->ieee80211_ptr;
12817 struct wiphy *wiphy = wdev->wiphy;
12818 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12820 ASSERT_WDEV_LOCK(wdev);
12822 trace_cfg80211_ch_switch_notify(dev, chandef);
12824 wdev->chandef = *chandef;
12825 wdev->preset_chandef = *chandef;
12826 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12827 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12829 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12831 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12832 struct cfg80211_chan_def *chandef,
12835 struct wireless_dev *wdev = dev->ieee80211_ptr;
12836 struct wiphy *wiphy = wdev->wiphy;
12837 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12839 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12841 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12842 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12844 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12847 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12848 const struct cfg80211_chan_def *chandef,
12849 enum nl80211_radar_event event,
12850 struct net_device *netdev, gfp_t gfp)
12852 struct sk_buff *msg;
12855 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12859 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12865 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12866 goto nla_put_failure;
12868 /* NOP and radar events don't need a netdev parameter */
12870 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12872 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12873 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12874 goto nla_put_failure;
12877 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12878 goto nla_put_failure;
12880 if (nl80211_send_chandef(msg, chandef))
12881 goto nla_put_failure;
12883 genlmsg_end(msg, hdr);
12885 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12886 NL80211_MCGRP_MLME, gfp);
12890 genlmsg_cancel(msg, hdr);
12894 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12895 u64 cookie, bool acked, gfp_t gfp)
12897 struct wireless_dev *wdev = dev->ieee80211_ptr;
12898 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12899 struct sk_buff *msg;
12902 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12904 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12909 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12915 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12916 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12917 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12918 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12919 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12920 goto nla_put_failure;
12922 genlmsg_end(msg, hdr);
12924 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12925 NL80211_MCGRP_MLME, gfp);
12929 genlmsg_cancel(msg, hdr);
12932 EXPORT_SYMBOL(cfg80211_probe_status);
12934 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12935 const u8 *frame, size_t len,
12936 int freq, int sig_dbm)
12938 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12939 struct sk_buff *msg;
12941 struct cfg80211_beacon_registration *reg;
12943 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12945 spin_lock_bh(&rdev->beacon_registrations_lock);
12946 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12947 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12949 spin_unlock_bh(&rdev->beacon_registrations_lock);
12953 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12955 goto nla_put_failure;
12957 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12959 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12961 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12962 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12963 goto nla_put_failure;
12965 genlmsg_end(msg, hdr);
12967 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12969 spin_unlock_bh(&rdev->beacon_registrations_lock);
12973 spin_unlock_bh(&rdev->beacon_registrations_lock);
12975 genlmsg_cancel(msg, hdr);
12978 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12981 static int cfg80211_net_detect_results(struct sk_buff *msg,
12982 struct cfg80211_wowlan_wakeup *wakeup)
12984 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12985 struct nlattr *nl_results, *nl_match, *nl_freqs;
12988 nl_results = nla_nest_start(
12989 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12993 for (i = 0; i < nd->n_matches; i++) {
12994 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12996 nl_match = nla_nest_start(msg, i);
13000 /* The SSID attribute is optional in nl80211, but for
13001 * simplicity reasons it's always present in the
13002 * cfg80211 structure. If a driver can't pass the
13003 * SSID, that needs to be changed. A zero length SSID
13004 * is still a valid SSID (wildcard), so it cannot be
13005 * used for this purpose.
13007 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
13008 match->ssid.ssid)) {
13009 nla_nest_cancel(msg, nl_match);
13013 if (match->n_channels) {
13014 nl_freqs = nla_nest_start(
13015 msg, NL80211_ATTR_SCAN_FREQUENCIES);
13017 nla_nest_cancel(msg, nl_match);
13021 for (j = 0; j < match->n_channels; j++) {
13022 if (nla_put_u32(msg, j, match->channels[j])) {
13023 nla_nest_cancel(msg, nl_freqs);
13024 nla_nest_cancel(msg, nl_match);
13029 nla_nest_end(msg, nl_freqs);
13032 nla_nest_end(msg, nl_match);
13036 nla_nest_end(msg, nl_results);
13040 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
13041 struct cfg80211_wowlan_wakeup *wakeup,
13044 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13045 struct sk_buff *msg;
13049 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
13052 size += wakeup->packet_present_len;
13054 msg = nlmsg_new(size, gfp);
13058 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
13062 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13063 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13066 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
13067 wdev->netdev->ifindex))
13071 struct nlattr *reasons;
13073 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
13077 if (wakeup->disconnect &&
13078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
13080 if (wakeup->magic_pkt &&
13081 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
13083 if (wakeup->gtk_rekey_failure &&
13084 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
13086 if (wakeup->eap_identity_req &&
13087 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
13089 if (wakeup->four_way_handshake &&
13090 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
13092 if (wakeup->rfkill_release &&
13093 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
13096 if (wakeup->pattern_idx >= 0 &&
13097 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
13098 wakeup->pattern_idx))
13101 if (wakeup->tcp_match &&
13102 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
13105 if (wakeup->tcp_connlost &&
13106 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
13109 if (wakeup->tcp_nomoretokens &&
13111 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
13114 if (wakeup->packet) {
13115 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
13116 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
13118 if (!wakeup->packet_80211) {
13120 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
13122 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
13125 if (wakeup->packet_len &&
13126 nla_put_u32(msg, len_attr, wakeup->packet_len))
13129 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
13134 if (wakeup->net_detect &&
13135 cfg80211_net_detect_results(msg, wakeup))
13138 nla_nest_end(msg, reasons);
13141 genlmsg_end(msg, hdr);
13143 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13144 NL80211_MCGRP_MLME, gfp);
13150 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
13153 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
13154 enum nl80211_tdls_operation oper,
13155 u16 reason_code, gfp_t gfp)
13157 struct wireless_dev *wdev = dev->ieee80211_ptr;
13158 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
13159 struct sk_buff *msg;
13162 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
13165 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13169 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
13175 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13176 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
13177 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
13178 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
13179 (reason_code > 0 &&
13180 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
13181 goto nla_put_failure;
13183 genlmsg_end(msg, hdr);
13185 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13186 NL80211_MCGRP_MLME, gfp);
13190 genlmsg_cancel(msg, hdr);
13193 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
13195 static int nl80211_netlink_notify(struct notifier_block * nb,
13196 unsigned long state,
13199 struct netlink_notify *notify = _notify;
13200 struct cfg80211_registered_device *rdev;
13201 struct wireless_dev *wdev;
13202 struct cfg80211_beacon_registration *reg, *tmp;
13204 if (state != NETLINK_URELEASE)
13205 return NOTIFY_DONE;
13209 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
13210 bool schedule_destroy_work = false;
13211 bool schedule_scan_stop = false;
13212 struct cfg80211_sched_scan_request *sched_scan_req =
13213 rcu_dereference(rdev->sched_scan_req);
13215 if (sched_scan_req && notify->portid &&
13216 sched_scan_req->owner_nlportid == notify->portid)
13217 schedule_scan_stop = true;
13219 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
13220 cfg80211_mlme_unregister_socket(wdev, notify->portid);
13222 if (wdev->owner_nlportid == notify->portid)
13223 schedule_destroy_work = true;
13226 spin_lock_bh(&rdev->beacon_registrations_lock);
13227 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
13229 if (reg->nlportid == notify->portid) {
13230 list_del(®->list);
13235 spin_unlock_bh(&rdev->beacon_registrations_lock);
13237 if (schedule_destroy_work) {
13238 struct cfg80211_iface_destroy *destroy;
13240 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
13242 destroy->nlportid = notify->portid;
13243 spin_lock(&rdev->destroy_list_lock);
13244 list_add(&destroy->list, &rdev->destroy_list);
13245 spin_unlock(&rdev->destroy_list_lock);
13246 schedule_work(&rdev->destroy_work);
13248 } else if (schedule_scan_stop) {
13249 sched_scan_req->owner_nlportid = 0;
13251 if (rdev->ops->sched_scan_stop &&
13252 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
13253 schedule_work(&rdev->sched_scan_stop_wk);
13260 * It is possible that the user space process that is controlling the
13261 * indoor setting disappeared, so notify the regulatory core.
13263 regulatory_netlink_notify(notify->portid);
13267 static struct notifier_block nl80211_netlink_notifier = {
13268 .notifier_call = nl80211_netlink_notify,
13271 void cfg80211_ft_event(struct net_device *netdev,
13272 struct cfg80211_ft_event_params *ft_event)
13274 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
13275 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13276 struct sk_buff *msg;
13279 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
13281 if (!ft_event->target_ap)
13284 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13288 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
13292 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13293 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
13294 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
13297 if (ft_event->ies &&
13298 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
13300 if (ft_event->ric_ies &&
13301 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
13302 ft_event->ric_ies))
13305 genlmsg_end(msg, hdr);
13307 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
13308 NL80211_MCGRP_MLME, GFP_KERNEL);
13313 EXPORT_SYMBOL(cfg80211_ft_event);
13315 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
13317 struct cfg80211_registered_device *rdev;
13318 struct sk_buff *msg;
13322 rdev = wiphy_to_rdev(wdev->wiphy);
13323 if (!rdev->crit_proto_nlportid)
13326 nlportid = rdev->crit_proto_nlportid;
13327 rdev->crit_proto_nlportid = 0;
13329 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
13333 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
13335 goto nla_put_failure;
13337 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13338 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13339 goto nla_put_failure;
13341 genlmsg_end(msg, hdr);
13343 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
13348 genlmsg_cancel(msg, hdr);
13352 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
13354 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
13356 struct wiphy *wiphy = wdev->wiphy;
13357 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
13358 struct sk_buff *msg;
13361 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
13365 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
13369 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
13370 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
13371 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
13374 genlmsg_end(msg, hdr);
13376 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
13377 NL80211_MCGRP_MLME, GFP_KERNEL);
13383 /* initialisation/exit functions */
13385 int nl80211_init(void)
13389 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
13394 err = netlink_register_notifier(&nl80211_netlink_notifier);
13400 genl_unregister_family(&nl80211_fam);
13404 void nl80211_exit(void)
13406 netlink_unregister_notifier(&nl80211_netlink_notifier);
13407 genl_unregister_family(&nl80211_fam);