2 * This is the new netlink-based wireless configuration interface.
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2014 Intel Mobile Communications GmbH
9 #include <linux/module.h>
10 #include <linux/err.h>
11 #include <linux/slab.h>
12 #include <linux/list.h>
13 #include <linux/if_ether.h>
14 #include <linux/ieee80211.h>
15 #include <linux/nl80211.h>
16 #include <linux/rtnetlink.h>
17 #include <linux/netlink.h>
18 #include <linux/etherdevice.h>
19 #include <net/net_namespace.h>
20 #include <net/genetlink.h>
21 #include <net/cfg80211.h>
23 #include <net/inet_connection_sock.h>
29 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
30 struct genl_info *info,
31 struct cfg80211_crypto_settings *settings,
34 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
35 struct genl_info *info);
36 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
37 struct genl_info *info);
39 /* the netlink family */
40 static struct genl_family nl80211_fam = {
41 .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
42 .name = NL80211_GENL_NAME, /* have users key off the name instead */
43 .hdrsize = 0, /* no private header */
44 .version = 1, /* no particular meaning now */
45 .maxattr = NL80211_ATTR_MAX,
47 .pre_doit = nl80211_pre_doit,
48 .post_doit = nl80211_post_doit,
51 /* multicast groups */
52 enum nl80211_multicast_groups {
55 NL80211_MCGRP_REGULATORY,
58 NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
61 static const struct genl_multicast_group nl80211_mcgrps[] = {
62 [NL80211_MCGRP_CONFIG] = { .name = NL80211_MULTICAST_GROUP_CONFIG },
63 [NL80211_MCGRP_SCAN] = { .name = NL80211_MULTICAST_GROUP_SCAN },
64 [NL80211_MCGRP_REGULATORY] = { .name = NL80211_MULTICAST_GROUP_REG },
65 [NL80211_MCGRP_MLME] = { .name = NL80211_MULTICAST_GROUP_MLME },
66 [NL80211_MCGRP_VENDOR] = { .name = NL80211_MULTICAST_GROUP_VENDOR },
67 #ifdef CONFIG_NL80211_TESTMODE
68 [NL80211_MCGRP_TESTMODE] = { .name = NL80211_MULTICAST_GROUP_TESTMODE }
72 /* returns ERR_PTR values */
73 static struct wireless_dev *
74 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
76 struct cfg80211_registered_device *rdev;
77 struct wireless_dev *result = NULL;
78 bool have_ifidx = attrs[NL80211_ATTR_IFINDEX];
79 bool have_wdev_id = attrs[NL80211_ATTR_WDEV];
86 if (!have_ifidx && !have_wdev_id)
87 return ERR_PTR(-EINVAL);
90 ifidx = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
92 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
93 wiphy_idx = wdev_id >> 32;
96 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
97 struct wireless_dev *wdev;
99 if (wiphy_net(&rdev->wiphy) != netns)
102 if (have_wdev_id && rdev->wiphy_idx != wiphy_idx)
105 list_for_each_entry(wdev, &rdev->wdev_list, list) {
106 if (have_ifidx && wdev->netdev &&
107 wdev->netdev->ifindex == ifidx) {
111 if (have_wdev_id && wdev->identifier == (u32)wdev_id) {
123 return ERR_PTR(-ENODEV);
126 static struct cfg80211_registered_device *
127 __cfg80211_rdev_from_attrs(struct net *netns, struct nlattr **attrs)
129 struct cfg80211_registered_device *rdev = NULL, *tmp;
130 struct net_device *netdev;
134 if (!attrs[NL80211_ATTR_WIPHY] &&
135 !attrs[NL80211_ATTR_IFINDEX] &&
136 !attrs[NL80211_ATTR_WDEV])
137 return ERR_PTR(-EINVAL);
139 if (attrs[NL80211_ATTR_WIPHY])
140 rdev = cfg80211_rdev_by_wiphy_idx(
141 nla_get_u32(attrs[NL80211_ATTR_WIPHY]));
143 if (attrs[NL80211_ATTR_WDEV]) {
144 u64 wdev_id = nla_get_u64(attrs[NL80211_ATTR_WDEV]);
145 struct wireless_dev *wdev;
148 tmp = cfg80211_rdev_by_wiphy_idx(wdev_id >> 32);
150 /* make sure wdev exists */
151 list_for_each_entry(wdev, &tmp->wdev_list, list) {
152 if (wdev->identifier != (u32)wdev_id)
161 if (rdev && tmp != rdev)
162 return ERR_PTR(-EINVAL);
167 if (attrs[NL80211_ATTR_IFINDEX]) {
168 int ifindex = nla_get_u32(attrs[NL80211_ATTR_IFINDEX]);
169 netdev = __dev_get_by_index(netns, ifindex);
171 if (netdev->ieee80211_ptr)
173 netdev->ieee80211_ptr->wiphy);
177 /* not wireless device -- return error */
179 return ERR_PTR(-EINVAL);
181 /* mismatch -- return error */
182 if (rdev && tmp != rdev)
183 return ERR_PTR(-EINVAL);
190 return ERR_PTR(-ENODEV);
192 if (netns != wiphy_net(&rdev->wiphy))
193 return ERR_PTR(-ENODEV);
199 * This function returns a pointer to the driver
200 * that the genl_info item that is passed refers to.
202 * The result of this can be a PTR_ERR and hence must
203 * be checked with IS_ERR() for errors.
205 static struct cfg80211_registered_device *
206 cfg80211_get_dev_from_info(struct net *netns, struct genl_info *info)
208 return __cfg80211_rdev_from_attrs(netns, info->attrs);
211 /* policy for the attributes */
212 static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
213 [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
214 [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
216 [NL80211_ATTR_WIPHY_TXQ_PARAMS] = { .type = NLA_NESTED },
218 [NL80211_ATTR_WIPHY_FREQ] = { .type = NLA_U32 },
219 [NL80211_ATTR_WIPHY_CHANNEL_TYPE] = { .type = NLA_U32 },
220 [NL80211_ATTR_CHANNEL_WIDTH] = { .type = NLA_U32 },
221 [NL80211_ATTR_CENTER_FREQ1] = { .type = NLA_U32 },
222 [NL80211_ATTR_CENTER_FREQ2] = { .type = NLA_U32 },
224 [NL80211_ATTR_WIPHY_RETRY_SHORT] = { .type = NLA_U8 },
225 [NL80211_ATTR_WIPHY_RETRY_LONG] = { .type = NLA_U8 },
226 [NL80211_ATTR_WIPHY_FRAG_THRESHOLD] = { .type = NLA_U32 },
227 [NL80211_ATTR_WIPHY_RTS_THRESHOLD] = { .type = NLA_U32 },
228 [NL80211_ATTR_WIPHY_COVERAGE_CLASS] = { .type = NLA_U8 },
229 [NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },
231 [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
232 [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
233 [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
235 [NL80211_ATTR_MAC] = { .len = ETH_ALEN },
236 [NL80211_ATTR_PREV_BSSID] = { .len = ETH_ALEN },
238 [NL80211_ATTR_KEY] = { .type = NLA_NESTED, },
239 [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
240 .len = WLAN_MAX_KEY_LEN },
241 [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
242 [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
243 [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
244 [NL80211_ATTR_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
245 [NL80211_ATTR_KEY_TYPE] = { .type = NLA_U32 },
247 [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
248 [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
249 [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
250 .len = IEEE80211_MAX_DATA_LEN },
251 [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
252 .len = IEEE80211_MAX_DATA_LEN },
253 [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
254 [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
255 [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
256 [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
257 .len = NL80211_MAX_SUPP_RATES },
258 [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 },
259 [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
260 [NL80211_ATTR_MNTR_FLAGS] = { /* NLA_NESTED can't be empty */ },
261 [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY,
262 .len = IEEE80211_MAX_MESH_ID_LEN },
263 [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 },
265 [NL80211_ATTR_REG_ALPHA2] = { .type = NLA_STRING, .len = 2 },
266 [NL80211_ATTR_REG_RULES] = { .type = NLA_NESTED },
268 [NL80211_ATTR_BSS_CTS_PROT] = { .type = NLA_U8 },
269 [NL80211_ATTR_BSS_SHORT_PREAMBLE] = { .type = NLA_U8 },
270 [NL80211_ATTR_BSS_SHORT_SLOT_TIME] = { .type = NLA_U8 },
271 [NL80211_ATTR_BSS_BASIC_RATES] = { .type = NLA_BINARY,
272 .len = NL80211_MAX_SUPP_RATES },
273 [NL80211_ATTR_BSS_HT_OPMODE] = { .type = NLA_U16 },
275 [NL80211_ATTR_MESH_CONFIG] = { .type = NLA_NESTED },
276 [NL80211_ATTR_SUPPORT_MESH_AUTH] = { .type = NLA_FLAG },
278 [NL80211_ATTR_HT_CAPABILITY] = { .len = NL80211_HT_CAPABILITY_LEN },
280 [NL80211_ATTR_MGMT_SUBTYPE] = { .type = NLA_U8 },
281 [NL80211_ATTR_IE] = { .type = NLA_BINARY,
282 .len = IEEE80211_MAX_DATA_LEN },
283 [NL80211_ATTR_SCAN_FREQUENCIES] = { .type = NLA_NESTED },
284 [NL80211_ATTR_SCAN_SSIDS] = { .type = NLA_NESTED },
286 [NL80211_ATTR_SSID] = { .type = NLA_BINARY,
287 .len = IEEE80211_MAX_SSID_LEN },
288 [NL80211_ATTR_AUTH_TYPE] = { .type = NLA_U32 },
289 [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 },
290 [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG },
291 [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG },
292 [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 },
293 [NL80211_ATTR_STA_FLAGS2] = {
294 .len = sizeof(struct nl80211_sta_flag_update),
296 [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
297 [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
298 [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
299 [NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
300 [NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
301 [NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
302 [NL80211_ATTR_PID] = { .type = NLA_U32 },
303 [NL80211_ATTR_4ADDR] = { .type = NLA_U8 },
304 [NL80211_ATTR_PMKID] = { .type = NLA_BINARY,
305 .len = WLAN_PMKID_LEN },
306 [NL80211_ATTR_DURATION] = { .type = NLA_U32 },
307 [NL80211_ATTR_COOKIE] = { .type = NLA_U64 },
308 [NL80211_ATTR_TX_RATES] = { .type = NLA_NESTED },
309 [NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
310 .len = IEEE80211_MAX_DATA_LEN },
311 [NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
312 [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
313 [NL80211_ATTR_CQM] = { .type = NLA_NESTED, },
314 [NL80211_ATTR_LOCAL_STATE_CHANGE] = { .type = NLA_FLAG },
315 [NL80211_ATTR_AP_ISOLATE] = { .type = NLA_U8 },
316 [NL80211_ATTR_WIPHY_TX_POWER_SETTING] = { .type = NLA_U32 },
317 [NL80211_ATTR_WIPHY_TX_POWER_LEVEL] = { .type = NLA_U32 },
318 [NL80211_ATTR_FRAME_TYPE] = { .type = NLA_U16 },
319 [NL80211_ATTR_WIPHY_ANTENNA_TX] = { .type = NLA_U32 },
320 [NL80211_ATTR_WIPHY_ANTENNA_RX] = { .type = NLA_U32 },
321 [NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
322 [NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
323 [NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
324 [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
325 [NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
326 [NL80211_ATTR_SCHED_SCAN_INTERVAL] = { .type = NLA_U32 },
327 [NL80211_ATTR_REKEY_DATA] = { .type = NLA_NESTED },
328 [NL80211_ATTR_SCAN_SUPP_RATES] = { .type = NLA_NESTED },
329 [NL80211_ATTR_HIDDEN_SSID] = { .type = NLA_U32 },
330 [NL80211_ATTR_IE_PROBE_RESP] = { .type = NLA_BINARY,
331 .len = IEEE80211_MAX_DATA_LEN },
332 [NL80211_ATTR_IE_ASSOC_RESP] = { .type = NLA_BINARY,
333 .len = IEEE80211_MAX_DATA_LEN },
334 [NL80211_ATTR_ROAM_SUPPORT] = { .type = NLA_FLAG },
335 [NL80211_ATTR_SCHED_SCAN_MATCH] = { .type = NLA_NESTED },
336 [NL80211_ATTR_TX_NO_CCK_RATE] = { .type = NLA_FLAG },
337 [NL80211_ATTR_TDLS_ACTION] = { .type = NLA_U8 },
338 [NL80211_ATTR_TDLS_DIALOG_TOKEN] = { .type = NLA_U8 },
339 [NL80211_ATTR_TDLS_OPERATION] = { .type = NLA_U8 },
340 [NL80211_ATTR_TDLS_SUPPORT] = { .type = NLA_FLAG },
341 [NL80211_ATTR_TDLS_EXTERNAL_SETUP] = { .type = NLA_FLAG },
342 [NL80211_ATTR_TDLS_INITIATOR] = { .type = NLA_FLAG },
343 [NL80211_ATTR_DONT_WAIT_FOR_ACK] = { .type = NLA_FLAG },
344 [NL80211_ATTR_PROBE_RESP] = { .type = NLA_BINARY,
345 .len = IEEE80211_MAX_DATA_LEN },
346 [NL80211_ATTR_DFS_REGION] = { .type = NLA_U8 },
347 [NL80211_ATTR_DISABLE_HT] = { .type = NLA_FLAG },
348 [NL80211_ATTR_HT_CAPABILITY_MASK] = {
349 .len = NL80211_HT_CAPABILITY_LEN
351 [NL80211_ATTR_NOACK_MAP] = { .type = NLA_U16 },
352 [NL80211_ATTR_INACTIVITY_TIMEOUT] = { .type = NLA_U16 },
353 [NL80211_ATTR_BG_SCAN_PERIOD] = { .type = NLA_U16 },
354 [NL80211_ATTR_WDEV] = { .type = NLA_U64 },
355 [NL80211_ATTR_USER_REG_HINT_TYPE] = { .type = NLA_U32 },
356 [NL80211_ATTR_SAE_DATA] = { .type = NLA_BINARY, },
357 [NL80211_ATTR_VHT_CAPABILITY] = { .len = NL80211_VHT_CAPABILITY_LEN },
358 [NL80211_ATTR_SCAN_FLAGS] = { .type = NLA_U32 },
359 [NL80211_ATTR_P2P_CTWINDOW] = { .type = NLA_U8 },
360 [NL80211_ATTR_P2P_OPPPS] = { .type = NLA_U8 },
361 [NL80211_ATTR_ACL_POLICY] = {. type = NLA_U32 },
362 [NL80211_ATTR_MAC_ADDRS] = { .type = NLA_NESTED },
363 [NL80211_ATTR_STA_CAPABILITY] = { .type = NLA_U16 },
364 [NL80211_ATTR_STA_EXT_CAPABILITY] = { .type = NLA_BINARY, },
365 [NL80211_ATTR_SPLIT_WIPHY_DUMP] = { .type = NLA_FLAG, },
366 [NL80211_ATTR_DISABLE_VHT] = { .type = NLA_FLAG },
367 [NL80211_ATTR_VHT_CAPABILITY_MASK] = {
368 .len = NL80211_VHT_CAPABILITY_LEN,
370 [NL80211_ATTR_MDID] = { .type = NLA_U16 },
371 [NL80211_ATTR_IE_RIC] = { .type = NLA_BINARY,
372 .len = IEEE80211_MAX_DATA_LEN },
373 [NL80211_ATTR_PEER_AID] = { .type = NLA_U16 },
374 [NL80211_ATTR_CH_SWITCH_COUNT] = { .type = NLA_U32 },
375 [NL80211_ATTR_CH_SWITCH_BLOCK_TX] = { .type = NLA_FLAG },
376 [NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
377 [NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_BINARY },
378 [NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_BINARY },
379 [NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
380 [NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
381 [NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
382 [NL80211_ATTR_OPMODE_NOTIF] = { .type = NLA_U8 },
383 [NL80211_ATTR_VENDOR_ID] = { .type = NLA_U32 },
384 [NL80211_ATTR_VENDOR_SUBCMD] = { .type = NLA_U32 },
385 [NL80211_ATTR_VENDOR_DATA] = { .type = NLA_BINARY },
386 [NL80211_ATTR_QOS_MAP] = { .type = NLA_BINARY,
387 .len = IEEE80211_QOS_MAP_LEN_MAX },
388 [NL80211_ATTR_MAC_HINT] = { .len = ETH_ALEN },
389 [NL80211_ATTR_WIPHY_FREQ_HINT] = { .type = NLA_U32 },
390 [NL80211_ATTR_TDLS_PEER_CAPABILITY] = { .type = NLA_U32 },
391 [NL80211_ATTR_SOCKET_OWNER] = { .type = NLA_FLAG },
392 [NL80211_ATTR_CSA_C_OFFSETS_TX] = { .type = NLA_BINARY },
393 [NL80211_ATTR_USE_RRM] = { .type = NLA_FLAG },
394 [NL80211_ATTR_TSID] = { .type = NLA_U8 },
395 [NL80211_ATTR_USER_PRIO] = { .type = NLA_U8 },
396 [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
397 [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
398 [NL80211_ATTR_MAC_MASK] = { .len = ETH_ALEN },
399 [NL80211_ATTR_WIPHY_SELF_MANAGED_REG] = { .type = NLA_FLAG },
400 [NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
401 [NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
402 [NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
405 /* policy for the key attributes */
406 static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = {
407 [NL80211_KEY_DATA] = { .type = NLA_BINARY, .len = WLAN_MAX_KEY_LEN },
408 [NL80211_KEY_IDX] = { .type = NLA_U8 },
409 [NL80211_KEY_CIPHER] = { .type = NLA_U32 },
410 [NL80211_KEY_SEQ] = { .type = NLA_BINARY, .len = 16 },
411 [NL80211_KEY_DEFAULT] = { .type = NLA_FLAG },
412 [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG },
413 [NL80211_KEY_TYPE] = { .type = NLA_U32 },
414 [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
417 /* policy for the key default flags */
418 static const struct nla_policy
419 nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
420 [NL80211_KEY_DEFAULT_TYPE_UNICAST] = { .type = NLA_FLAG },
421 [NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
424 /* policy for WoWLAN attributes */
425 static const struct nla_policy
426 nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
427 [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
428 [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
429 [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
430 [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
431 [NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
432 [NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
433 [NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
434 [NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
435 [NL80211_WOWLAN_TRIG_TCP_CONNECTION] = { .type = NLA_NESTED },
436 [NL80211_WOWLAN_TRIG_NET_DETECT] = { .type = NLA_NESTED },
439 static const struct nla_policy
440 nl80211_wowlan_tcp_policy[NUM_NL80211_WOWLAN_TCP] = {
441 [NL80211_WOWLAN_TCP_SRC_IPV4] = { .type = NLA_U32 },
442 [NL80211_WOWLAN_TCP_DST_IPV4] = { .type = NLA_U32 },
443 [NL80211_WOWLAN_TCP_DST_MAC] = { .len = ETH_ALEN },
444 [NL80211_WOWLAN_TCP_SRC_PORT] = { .type = NLA_U16 },
445 [NL80211_WOWLAN_TCP_DST_PORT] = { .type = NLA_U16 },
446 [NL80211_WOWLAN_TCP_DATA_PAYLOAD] = { .len = 1 },
447 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ] = {
448 .len = sizeof(struct nl80211_wowlan_tcp_data_seq)
450 [NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN] = {
451 .len = sizeof(struct nl80211_wowlan_tcp_data_token)
453 [NL80211_WOWLAN_TCP_DATA_INTERVAL] = { .type = NLA_U32 },
454 [NL80211_WOWLAN_TCP_WAKE_PAYLOAD] = { .len = 1 },
455 [NL80211_WOWLAN_TCP_WAKE_MASK] = { .len = 1 },
458 /* policy for coalesce rule attributes */
459 static const struct nla_policy
460 nl80211_coalesce_policy[NUM_NL80211_ATTR_COALESCE_RULE] = {
461 [NL80211_ATTR_COALESCE_RULE_DELAY] = { .type = NLA_U32 },
462 [NL80211_ATTR_COALESCE_RULE_CONDITION] = { .type = NLA_U32 },
463 [NL80211_ATTR_COALESCE_RULE_PKT_PATTERN] = { .type = NLA_NESTED },
466 /* policy for GTK rekey offload attributes */
467 static const struct nla_policy
468 nl80211_rekey_policy[NUM_NL80211_REKEY_DATA] = {
469 [NL80211_REKEY_DATA_KEK] = { .len = NL80211_KEK_LEN },
470 [NL80211_REKEY_DATA_KCK] = { .len = NL80211_KCK_LEN },
471 [NL80211_REKEY_DATA_REPLAY_CTR] = { .len = NL80211_REPLAY_CTR_LEN },
474 static const struct nla_policy
475 nl80211_match_policy[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1] = {
476 [NL80211_SCHED_SCAN_MATCH_ATTR_SSID] = { .type = NLA_BINARY,
477 .len = IEEE80211_MAX_SSID_LEN },
478 [NL80211_SCHED_SCAN_MATCH_ATTR_RSSI] = { .type = NLA_U32 },
481 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
482 struct netlink_callback *cb,
483 struct cfg80211_registered_device **rdev,
484 struct wireless_dev **wdev)
491 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
492 nl80211_fam.attrbuf, nl80211_fam.maxattr,
497 *wdev = __cfg80211_wdev_from_attrs(sock_net(skb->sk),
498 nl80211_fam.attrbuf);
500 err = PTR_ERR(*wdev);
503 *rdev = wiphy_to_rdev((*wdev)->wiphy);
504 /* 0 is the first index - add 1 to parse only once */
505 cb->args[0] = (*rdev)->wiphy_idx + 1;
506 cb->args[1] = (*wdev)->identifier;
508 /* subtract the 1 again here */
509 struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
510 struct wireless_dev *tmp;
516 *rdev = wiphy_to_rdev(wiphy);
519 list_for_each_entry(tmp, &(*rdev)->wdev_list, list) {
520 if (tmp->identifier == cb->args[1]) {
538 static void nl80211_finish_wdev_dump(struct cfg80211_registered_device *rdev)
544 static bool is_valid_ie_attr(const struct nlattr *attr)
552 pos = nla_data(attr);
573 /* message building helper */
574 static inline void *nl80211hdr_put(struct sk_buff *skb, u32 portid, u32 seq,
577 /* since there is no private header just add the generic one */
578 return genlmsg_put(skb, portid, seq, &nl80211_fam, flags, cmd);
581 static int nl80211_msg_put_channel(struct sk_buff *msg,
582 struct ieee80211_channel *chan,
585 /* Some channels must be completely excluded from the
586 * list to protect old user-space tools from breaking
588 if (!large && chan->flags &
589 (IEEE80211_CHAN_NO_10MHZ | IEEE80211_CHAN_NO_20MHZ))
592 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_FREQ,
594 goto nla_put_failure;
596 if ((chan->flags & IEEE80211_CHAN_DISABLED) &&
597 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_DISABLED))
598 goto nla_put_failure;
599 if (chan->flags & IEEE80211_CHAN_NO_IR) {
600 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_IR))
601 goto nla_put_failure;
602 if (nla_put_flag(msg, __NL80211_FREQUENCY_ATTR_NO_IBSS))
603 goto nla_put_failure;
605 if (chan->flags & IEEE80211_CHAN_RADAR) {
606 if (nla_put_flag(msg, NL80211_FREQUENCY_ATTR_RADAR))
607 goto nla_put_failure;
611 time = elapsed_jiffies_msecs(chan->dfs_state_entered);
613 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_STATE,
615 goto nla_put_failure;
616 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_DFS_TIME,
618 goto nla_put_failure;
620 NL80211_FREQUENCY_ATTR_DFS_CAC_TIME,
622 goto nla_put_failure;
627 if ((chan->flags & IEEE80211_CHAN_NO_HT40MINUS) &&
628 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_MINUS))
629 goto nla_put_failure;
630 if ((chan->flags & IEEE80211_CHAN_NO_HT40PLUS) &&
631 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_HT40_PLUS))
632 goto nla_put_failure;
633 if ((chan->flags & IEEE80211_CHAN_NO_80MHZ) &&
634 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_80MHZ))
635 goto nla_put_failure;
636 if ((chan->flags & IEEE80211_CHAN_NO_160MHZ) &&
637 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_160MHZ))
638 goto nla_put_failure;
639 if ((chan->flags & IEEE80211_CHAN_INDOOR_ONLY) &&
640 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_INDOOR_ONLY))
641 goto nla_put_failure;
642 if ((chan->flags & IEEE80211_CHAN_IR_CONCURRENT) &&
643 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_IR_CONCURRENT))
644 goto nla_put_failure;
645 if ((chan->flags & IEEE80211_CHAN_NO_20MHZ) &&
646 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_20MHZ))
647 goto nla_put_failure;
648 if ((chan->flags & IEEE80211_CHAN_NO_10MHZ) &&
649 nla_put_flag(msg, NL80211_FREQUENCY_ATTR_NO_10MHZ))
650 goto nla_put_failure;
653 if (nla_put_u32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
654 DBM_TO_MBM(chan->max_power)))
655 goto nla_put_failure;
663 /* netlink command implementations */
670 bool def_uni, def_multi;
673 static int nl80211_parse_key_new(struct nlattr *key, struct key_parse *k)
675 struct nlattr *tb[NL80211_KEY_MAX + 1];
676 int err = nla_parse_nested(tb, NL80211_KEY_MAX, key,
681 k->def = !!tb[NL80211_KEY_DEFAULT];
682 k->defmgmt = !!tb[NL80211_KEY_DEFAULT_MGMT];
691 if (tb[NL80211_KEY_IDX])
692 k->idx = nla_get_u8(tb[NL80211_KEY_IDX]);
694 if (tb[NL80211_KEY_DATA]) {
695 k->p.key = nla_data(tb[NL80211_KEY_DATA]);
696 k->p.key_len = nla_len(tb[NL80211_KEY_DATA]);
699 if (tb[NL80211_KEY_SEQ]) {
700 k->p.seq = nla_data(tb[NL80211_KEY_SEQ]);
701 k->p.seq_len = nla_len(tb[NL80211_KEY_SEQ]);
704 if (tb[NL80211_KEY_CIPHER])
705 k->p.cipher = nla_get_u32(tb[NL80211_KEY_CIPHER]);
707 if (tb[NL80211_KEY_TYPE]) {
708 k->type = nla_get_u32(tb[NL80211_KEY_TYPE]);
709 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
713 if (tb[NL80211_KEY_DEFAULT_TYPES]) {
714 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
715 err = nla_parse_nested(kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
716 tb[NL80211_KEY_DEFAULT_TYPES],
717 nl80211_key_default_policy);
721 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
722 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
728 static int nl80211_parse_key_old(struct genl_info *info, struct key_parse *k)
730 if (info->attrs[NL80211_ATTR_KEY_DATA]) {
731 k->p.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
732 k->p.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
735 if (info->attrs[NL80211_ATTR_KEY_SEQ]) {
736 k->p.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]);
737 k->p.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]);
740 if (info->attrs[NL80211_ATTR_KEY_IDX])
741 k->idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
743 if (info->attrs[NL80211_ATTR_KEY_CIPHER])
744 k->p.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
746 k->def = !!info->attrs[NL80211_ATTR_KEY_DEFAULT];
747 k->defmgmt = !!info->attrs[NL80211_ATTR_KEY_DEFAULT_MGMT];
756 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
757 k->type = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
758 if (k->type < 0 || k->type >= NUM_NL80211_KEYTYPES)
762 if (info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES]) {
763 struct nlattr *kdt[NUM_NL80211_KEY_DEFAULT_TYPES];
764 int err = nla_parse_nested(
765 kdt, NUM_NL80211_KEY_DEFAULT_TYPES - 1,
766 info->attrs[NL80211_ATTR_KEY_DEFAULT_TYPES],
767 nl80211_key_default_policy);
771 k->def_uni = kdt[NL80211_KEY_DEFAULT_TYPE_UNICAST];
772 k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST];
778 static int nl80211_parse_key(struct genl_info *info, struct key_parse *k)
782 memset(k, 0, sizeof(*k));
786 if (info->attrs[NL80211_ATTR_KEY])
787 err = nl80211_parse_key_new(info->attrs[NL80211_ATTR_KEY], k);
789 err = nl80211_parse_key_old(info, k);
794 if (k->def && k->defmgmt)
798 if (k->def_uni || !k->def_multi)
804 if (k->idx < 4 || k->idx > 5)
807 if (k->idx < 0 || k->idx > 3)
810 if (k->idx < 0 || k->idx > 5)
818 static struct cfg80211_cached_keys *
819 nl80211_parse_connkeys(struct cfg80211_registered_device *rdev,
820 struct nlattr *keys, bool *no_ht)
822 struct key_parse parse;
824 struct cfg80211_cached_keys *result;
825 int rem, err, def = 0;
827 result = kzalloc(sizeof(*result), GFP_KERNEL);
829 return ERR_PTR(-ENOMEM);
832 result->defmgmt = -1;
834 nla_for_each_nested(key, keys, rem) {
835 memset(&parse, 0, sizeof(parse));
838 err = nl80211_parse_key_new(key, &parse);
844 if (parse.idx < 0 || parse.idx > 4)
850 result->def = parse.idx;
851 if (!parse.def_uni || !parse.def_multi)
853 } else if (parse.defmgmt)
855 err = cfg80211_validate_key_settings(rdev, &parse.p,
856 parse.idx, false, NULL);
859 result->params[parse.idx].cipher = parse.p.cipher;
860 result->params[parse.idx].key_len = parse.p.key_len;
861 result->params[parse.idx].key = result->data[parse.idx];
862 memcpy(result->data[parse.idx], parse.p.key, parse.p.key_len);
864 if (parse.p.cipher == WLAN_CIPHER_SUITE_WEP40 ||
865 parse.p.cipher == WLAN_CIPHER_SUITE_WEP104) {
877 static int nl80211_key_allowed(struct wireless_dev *wdev)
879 ASSERT_WDEV_LOCK(wdev);
881 switch (wdev->iftype) {
882 case NL80211_IFTYPE_AP:
883 case NL80211_IFTYPE_AP_VLAN:
884 case NL80211_IFTYPE_P2P_GO:
885 case NL80211_IFTYPE_MESH_POINT:
887 case NL80211_IFTYPE_ADHOC:
888 case NL80211_IFTYPE_STATION:
889 case NL80211_IFTYPE_P2P_CLIENT:
890 if (!wdev->current_bss)
893 case NL80211_IFTYPE_UNSPECIFIED:
894 case NL80211_IFTYPE_OCB:
895 case NL80211_IFTYPE_MONITOR:
896 case NL80211_IFTYPE_P2P_DEVICE:
897 case NL80211_IFTYPE_WDS:
898 case NUM_NL80211_IFTYPES:
905 static struct ieee80211_channel *nl80211_get_valid_chan(struct wiphy *wiphy,
908 struct ieee80211_channel *chan;
912 chan = ieee80211_get_channel(wiphy, nla_get_u32(tb));
913 if (!chan || chan->flags & IEEE80211_CHAN_DISABLED)
918 static int nl80211_put_iftypes(struct sk_buff *msg, u32 attr, u16 ifmodes)
920 struct nlattr *nl_modes = nla_nest_start(msg, attr);
924 goto nla_put_failure;
928 if ((ifmodes & 1) && nla_put_flag(msg, i))
929 goto nla_put_failure;
934 nla_nest_end(msg, nl_modes);
941 static int nl80211_put_iface_combinations(struct wiphy *wiphy,
945 struct nlattr *nl_combis;
948 nl_combis = nla_nest_start(msg,
949 NL80211_ATTR_INTERFACE_COMBINATIONS);
951 goto nla_put_failure;
953 for (i = 0; i < wiphy->n_iface_combinations; i++) {
954 const struct ieee80211_iface_combination *c;
955 struct nlattr *nl_combi, *nl_limits;
957 c = &wiphy->iface_combinations[i];
959 nl_combi = nla_nest_start(msg, i + 1);
961 goto nla_put_failure;
963 nl_limits = nla_nest_start(msg, NL80211_IFACE_COMB_LIMITS);
965 goto nla_put_failure;
967 for (j = 0; j < c->n_limits; j++) {
968 struct nlattr *nl_limit;
970 nl_limit = nla_nest_start(msg, j + 1);
972 goto nla_put_failure;
973 if (nla_put_u32(msg, NL80211_IFACE_LIMIT_MAX,
975 goto nla_put_failure;
976 if (nl80211_put_iftypes(msg, NL80211_IFACE_LIMIT_TYPES,
978 goto nla_put_failure;
979 nla_nest_end(msg, nl_limit);
982 nla_nest_end(msg, nl_limits);
984 if (c->beacon_int_infra_match &&
985 nla_put_flag(msg, NL80211_IFACE_COMB_STA_AP_BI_MATCH))
986 goto nla_put_failure;
987 if (nla_put_u32(msg, NL80211_IFACE_COMB_NUM_CHANNELS,
988 c->num_different_channels) ||
989 nla_put_u32(msg, NL80211_IFACE_COMB_MAXNUM,
991 goto nla_put_failure;
993 (nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
994 c->radar_detect_widths) ||
995 nla_put_u32(msg, NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
996 c->radar_detect_regions)))
997 goto nla_put_failure;
999 nla_nest_end(msg, nl_combi);
1002 nla_nest_end(msg, nl_combis);
1010 static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev,
1011 struct sk_buff *msg)
1013 const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan->tcp;
1014 struct nlattr *nl_tcp;
1019 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
1023 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1024 tcp->data_payload_max))
1027 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
1028 tcp->data_payload_max))
1031 if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ))
1034 if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
1035 sizeof(*tcp->tok), tcp->tok))
1038 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
1039 tcp->data_interval_max))
1042 if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
1043 tcp->wake_payload_max))
1046 nla_nest_end(msg, nl_tcp);
1050 static int nl80211_send_wowlan(struct sk_buff *msg,
1051 struct cfg80211_registered_device *rdev,
1054 struct nlattr *nl_wowlan;
1056 if (!rdev->wiphy.wowlan)
1059 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
1063 if (((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_ANY) &&
1064 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
1065 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_DISCONNECT) &&
1066 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
1067 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT) &&
1068 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
1069 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY) &&
1070 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED)) ||
1071 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
1072 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
1073 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ) &&
1074 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
1075 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE) &&
1076 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
1077 ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE) &&
1078 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
1081 if (rdev->wiphy.wowlan->n_patterns) {
1082 struct nl80211_pattern_support pat = {
1083 .max_patterns = rdev->wiphy.wowlan->n_patterns,
1084 .min_pattern_len = rdev->wiphy.wowlan->pattern_min_len,
1085 .max_pattern_len = rdev->wiphy.wowlan->pattern_max_len,
1086 .max_pkt_offset = rdev->wiphy.wowlan->max_pkt_offset,
1089 if (nla_put(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
1094 if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
1095 nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
1096 rdev->wiphy.wowlan->max_nd_match_sets))
1099 if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
1102 nla_nest_end(msg, nl_wowlan);
1108 static int nl80211_send_coalesce(struct sk_buff *msg,
1109 struct cfg80211_registered_device *rdev)
1111 struct nl80211_coalesce_rule_support rule;
1113 if (!rdev->wiphy.coalesce)
1116 rule.max_rules = rdev->wiphy.coalesce->n_rules;
1117 rule.max_delay = rdev->wiphy.coalesce->max_delay;
1118 rule.pat.max_patterns = rdev->wiphy.coalesce->n_patterns;
1119 rule.pat.min_pattern_len = rdev->wiphy.coalesce->pattern_min_len;
1120 rule.pat.max_pattern_len = rdev->wiphy.coalesce->pattern_max_len;
1121 rule.pat.max_pkt_offset = rdev->wiphy.coalesce->max_pkt_offset;
1123 if (nla_put(msg, NL80211_ATTR_COALESCE_RULE, sizeof(rule), &rule))
1129 static int nl80211_send_band_rateinfo(struct sk_buff *msg,
1130 struct ieee80211_supported_band *sband)
1132 struct nlattr *nl_rates, *nl_rate;
1133 struct ieee80211_rate *rate;
1137 if (sband->ht_cap.ht_supported &&
1138 (nla_put(msg, NL80211_BAND_ATTR_HT_MCS_SET,
1139 sizeof(sband->ht_cap.mcs),
1140 &sband->ht_cap.mcs) ||
1141 nla_put_u16(msg, NL80211_BAND_ATTR_HT_CAPA,
1142 sband->ht_cap.cap) ||
1143 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_FACTOR,
1144 sband->ht_cap.ampdu_factor) ||
1145 nla_put_u8(msg, NL80211_BAND_ATTR_HT_AMPDU_DENSITY,
1146 sband->ht_cap.ampdu_density)))
1150 if (sband->vht_cap.vht_supported &&
1151 (nla_put(msg, NL80211_BAND_ATTR_VHT_MCS_SET,
1152 sizeof(sband->vht_cap.vht_mcs),
1153 &sband->vht_cap.vht_mcs) ||
1154 nla_put_u32(msg, NL80211_BAND_ATTR_VHT_CAPA,
1155 sband->vht_cap.cap)))
1159 nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
1163 for (i = 0; i < sband->n_bitrates; i++) {
1164 nl_rate = nla_nest_start(msg, i);
1168 rate = &sband->bitrates[i];
1169 if (nla_put_u32(msg, NL80211_BITRATE_ATTR_RATE,
1172 if ((rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
1174 NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE))
1177 nla_nest_end(msg, nl_rate);
1180 nla_nest_end(msg, nl_rates);
1186 nl80211_send_mgmt_stypes(struct sk_buff *msg,
1187 const struct ieee80211_txrx_stypes *mgmt_stypes)
1190 struct nlattr *nl_ftypes, *nl_ifs;
1191 enum nl80211_iftype ift;
1197 nl_ifs = nla_nest_start(msg, NL80211_ATTR_TX_FRAME_TYPES);
1201 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1202 nl_ftypes = nla_nest_start(msg, ift);
1206 stypes = mgmt_stypes[ift].tx;
1209 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1210 (i << 4) | IEEE80211_FTYPE_MGMT))
1215 nla_nest_end(msg, nl_ftypes);
1218 nla_nest_end(msg, nl_ifs);
1220 nl_ifs = nla_nest_start(msg, NL80211_ATTR_RX_FRAME_TYPES);
1224 for (ift = 0; ift < NUM_NL80211_IFTYPES; ift++) {
1225 nl_ftypes = nla_nest_start(msg, ift);
1229 stypes = mgmt_stypes[ift].rx;
1232 nla_put_u16(msg, NL80211_ATTR_FRAME_TYPE,
1233 (i << 4) | IEEE80211_FTYPE_MGMT))
1238 nla_nest_end(msg, nl_ftypes);
1240 nla_nest_end(msg, nl_ifs);
1245 struct nl80211_dump_wiphy_state {
1248 long split_start, band_start, chan_start;
1252 static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
1253 enum nl80211_commands cmd,
1254 struct sk_buff *msg, u32 portid, u32 seq,
1255 int flags, struct nl80211_dump_wiphy_state *state)
1258 struct nlattr *nl_bands, *nl_band;
1259 struct nlattr *nl_freqs, *nl_freq;
1260 struct nlattr *nl_cmds;
1261 enum ieee80211_band band;
1262 struct ieee80211_channel *chan;
1264 const struct ieee80211_txrx_stypes *mgmt_stypes =
1265 rdev->wiphy.mgmt_stypes;
1268 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
1272 if (WARN_ON(!state))
1275 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
1276 nla_put_string(msg, NL80211_ATTR_WIPHY_NAME,
1277 wiphy_name(&rdev->wiphy)) ||
1278 nla_put_u32(msg, NL80211_ATTR_GENERATION,
1279 cfg80211_rdev_list_generation))
1280 goto nla_put_failure;
1282 if (cmd != NL80211_CMD_NEW_WIPHY)
1285 switch (state->split_start) {
1287 if (nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_SHORT,
1288 rdev->wiphy.retry_short) ||
1289 nla_put_u8(msg, NL80211_ATTR_WIPHY_RETRY_LONG,
1290 rdev->wiphy.retry_long) ||
1291 nla_put_u32(msg, NL80211_ATTR_WIPHY_FRAG_THRESHOLD,
1292 rdev->wiphy.frag_threshold) ||
1293 nla_put_u32(msg, NL80211_ATTR_WIPHY_RTS_THRESHOLD,
1294 rdev->wiphy.rts_threshold) ||
1295 nla_put_u8(msg, NL80211_ATTR_WIPHY_COVERAGE_CLASS,
1296 rdev->wiphy.coverage_class) ||
1297 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCAN_SSIDS,
1298 rdev->wiphy.max_scan_ssids) ||
1299 nla_put_u8(msg, NL80211_ATTR_MAX_NUM_SCHED_SCAN_SSIDS,
1300 rdev->wiphy.max_sched_scan_ssids) ||
1301 nla_put_u16(msg, NL80211_ATTR_MAX_SCAN_IE_LEN,
1302 rdev->wiphy.max_scan_ie_len) ||
1303 nla_put_u16(msg, NL80211_ATTR_MAX_SCHED_SCAN_IE_LEN,
1304 rdev->wiphy.max_sched_scan_ie_len) ||
1305 nla_put_u8(msg, NL80211_ATTR_MAX_MATCH_SETS,
1306 rdev->wiphy.max_match_sets))
1307 goto nla_put_failure;
1309 if ((rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN) &&
1310 nla_put_flag(msg, NL80211_ATTR_SUPPORT_IBSS_RSN))
1311 goto nla_put_failure;
1312 if ((rdev->wiphy.flags & WIPHY_FLAG_MESH_AUTH) &&
1313 nla_put_flag(msg, NL80211_ATTR_SUPPORT_MESH_AUTH))
1314 goto nla_put_failure;
1315 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) &&
1316 nla_put_flag(msg, NL80211_ATTR_SUPPORT_AP_UAPSD))
1317 goto nla_put_failure;
1318 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
1319 nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
1320 goto nla_put_failure;
1321 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
1322 nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
1323 goto nla_put_failure;
1324 if ((rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP) &&
1325 nla_put_flag(msg, NL80211_ATTR_TDLS_EXTERNAL_SETUP))
1326 goto nla_put_failure;
1327 state->split_start++;
1331 if (nla_put(msg, NL80211_ATTR_CIPHER_SUITES,
1332 sizeof(u32) * rdev->wiphy.n_cipher_suites,
1333 rdev->wiphy.cipher_suites))
1334 goto nla_put_failure;
1336 if (nla_put_u8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
1337 rdev->wiphy.max_num_pmkids))
1338 goto nla_put_failure;
1340 if ((rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
1341 nla_put_flag(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE))
1342 goto nla_put_failure;
1344 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_TX,
1345 rdev->wiphy.available_antennas_tx) ||
1346 nla_put_u32(msg, NL80211_ATTR_WIPHY_ANTENNA_AVAIL_RX,
1347 rdev->wiphy.available_antennas_rx))
1348 goto nla_put_failure;
1350 if ((rdev->wiphy.flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) &&
1351 nla_put_u32(msg, NL80211_ATTR_PROBE_RESP_OFFLOAD,
1352 rdev->wiphy.probe_resp_offload))
1353 goto nla_put_failure;
1355 if ((rdev->wiphy.available_antennas_tx ||
1356 rdev->wiphy.available_antennas_rx) &&
1357 rdev->ops->get_antenna) {
1358 u32 tx_ant = 0, rx_ant = 0;
1360 res = rdev_get_antenna(rdev, &tx_ant, &rx_ant);
1362 if (nla_put_u32(msg,
1363 NL80211_ATTR_WIPHY_ANTENNA_TX,
1366 NL80211_ATTR_WIPHY_ANTENNA_RX,
1368 goto nla_put_failure;
1372 state->split_start++;
1376 if (nl80211_put_iftypes(msg, NL80211_ATTR_SUPPORTED_IFTYPES,
1377 rdev->wiphy.interface_modes))
1378 goto nla_put_failure;
1379 state->split_start++;
1383 nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
1385 goto nla_put_failure;
1387 for (band = state->band_start;
1388 band < IEEE80211_NUM_BANDS; band++) {
1389 struct ieee80211_supported_band *sband;
1391 sband = rdev->wiphy.bands[band];
1396 nl_band = nla_nest_start(msg, band);
1398 goto nla_put_failure;
1400 switch (state->chan_start) {
1402 if (nl80211_send_band_rateinfo(msg, sband))
1403 goto nla_put_failure;
1404 state->chan_start++;
1408 /* add frequencies */
1409 nl_freqs = nla_nest_start(
1410 msg, NL80211_BAND_ATTR_FREQS);
1412 goto nla_put_failure;
1414 for (i = state->chan_start - 1;
1415 i < sband->n_channels;
1417 nl_freq = nla_nest_start(msg, i);
1419 goto nla_put_failure;
1421 chan = &sband->channels[i];
1423 if (nl80211_msg_put_channel(
1426 goto nla_put_failure;
1428 nla_nest_end(msg, nl_freq);
1432 if (i < sband->n_channels)
1433 state->chan_start = i + 2;
1435 state->chan_start = 0;
1436 nla_nest_end(msg, nl_freqs);
1439 nla_nest_end(msg, nl_band);
1442 /* start again here */
1443 if (state->chan_start)
1448 nla_nest_end(msg, nl_bands);
1450 if (band < IEEE80211_NUM_BANDS)
1451 state->band_start = band + 1;
1453 state->band_start = 0;
1455 /* if bands & channels are done, continue outside */
1456 if (state->band_start == 0 && state->chan_start == 0)
1457 state->split_start++;
1461 nl_cmds = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_COMMANDS);
1463 goto nla_put_failure;
1466 #define CMD(op, n) \
1468 if (rdev->ops->op) { \
1470 if (nla_put_u32(msg, i, NL80211_CMD_ ## n)) \
1471 goto nla_put_failure; \
1475 CMD(add_virtual_intf, NEW_INTERFACE);
1476 CMD(change_virtual_intf, SET_INTERFACE);
1477 CMD(add_key, NEW_KEY);
1478 CMD(start_ap, START_AP);
1479 CMD(add_station, NEW_STATION);
1480 CMD(add_mpath, NEW_MPATH);
1481 CMD(update_mesh_config, SET_MESH_CONFIG);
1482 CMD(change_bss, SET_BSS);
1483 CMD(auth, AUTHENTICATE);
1484 CMD(assoc, ASSOCIATE);
1485 CMD(deauth, DEAUTHENTICATE);
1486 CMD(disassoc, DISASSOCIATE);
1487 CMD(join_ibss, JOIN_IBSS);
1488 CMD(join_mesh, JOIN_MESH);
1489 CMD(set_pmksa, SET_PMKSA);
1490 CMD(del_pmksa, DEL_PMKSA);
1491 CMD(flush_pmksa, FLUSH_PMKSA);
1492 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)
1493 CMD(remain_on_channel, REMAIN_ON_CHANNEL);
1494 CMD(set_bitrate_mask, SET_TX_BITRATE_MASK);
1495 CMD(mgmt_tx, FRAME);
1496 CMD(mgmt_tx_cancel_wait, FRAME_WAIT_CANCEL);
1497 if (rdev->wiphy.flags & WIPHY_FLAG_NETNS_OK) {
1499 if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS))
1500 goto nla_put_failure;
1502 if (rdev->ops->set_monitor_channel || rdev->ops->start_ap ||
1503 rdev->ops->join_mesh) {
1505 if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL))
1506 goto nla_put_failure;
1508 CMD(set_wds_peer, SET_WDS_PEER);
1509 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) {
1510 CMD(tdls_mgmt, TDLS_MGMT);
1511 CMD(tdls_oper, TDLS_OPER);
1513 if (rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
1514 CMD(sched_scan_start, START_SCHED_SCAN);
1515 CMD(probe_client, PROBE_CLIENT);
1516 CMD(set_noack_map, SET_NOACK_MAP);
1517 if (rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS) {
1519 if (nla_put_u32(msg, i, NL80211_CMD_REGISTER_BEACONS))
1520 goto nla_put_failure;
1522 CMD(start_p2p_device, START_P2P_DEVICE);
1523 CMD(set_mcast_rate, SET_MCAST_RATE);
1524 #ifdef CONFIG_NL80211_TESTMODE
1525 CMD(testmode_cmd, TESTMODE);
1528 CMD(crit_proto_start, CRIT_PROTOCOL_START);
1529 CMD(crit_proto_stop, CRIT_PROTOCOL_STOP);
1530 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH)
1531 CMD(channel_switch, CHANNEL_SWITCH);
1532 CMD(set_qos_map, SET_QOS_MAP);
1533 if (rdev->wiphy.features &
1534 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION)
1535 CMD(add_tx_ts, ADD_TX_TS);
1537 /* add into the if now */
1540 if (rdev->ops->connect || rdev->ops->auth) {
1542 if (nla_put_u32(msg, i, NL80211_CMD_CONNECT))
1543 goto nla_put_failure;
1546 if (rdev->ops->disconnect || rdev->ops->deauth) {
1548 if (nla_put_u32(msg, i, NL80211_CMD_DISCONNECT))
1549 goto nla_put_failure;
1552 nla_nest_end(msg, nl_cmds);
1553 state->split_start++;
1557 if (rdev->ops->remain_on_channel &&
1558 (rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL) &&
1560 NL80211_ATTR_MAX_REMAIN_ON_CHANNEL_DURATION,
1561 rdev->wiphy.max_remain_on_channel_duration))
1562 goto nla_put_failure;
1564 if ((rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX) &&
1565 nla_put_flag(msg, NL80211_ATTR_OFFCHANNEL_TX_OK))
1566 goto nla_put_failure;
1568 if (nl80211_send_mgmt_stypes(msg, mgmt_stypes))
1569 goto nla_put_failure;
1570 state->split_start++;
1575 if (nl80211_send_wowlan(msg, rdev, state->split))
1576 goto nla_put_failure;
1577 state->split_start++;
1581 state->split_start++;
1584 if (nl80211_put_iftypes(msg, NL80211_ATTR_SOFTWARE_IFTYPES,
1585 rdev->wiphy.software_iftypes))
1586 goto nla_put_failure;
1588 if (nl80211_put_iface_combinations(&rdev->wiphy, msg,
1590 goto nla_put_failure;
1592 state->split_start++;
1596 if ((rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME) &&
1597 nla_put_u32(msg, NL80211_ATTR_DEVICE_AP_SME,
1598 rdev->wiphy.ap_sme_capa))
1599 goto nla_put_failure;
1601 features = rdev->wiphy.features;
1603 * We can only add the per-channel limit information if the
1604 * dump is split, otherwise it makes it too big. Therefore
1605 * only advertise it in that case.
1608 features |= NL80211_FEATURE_ADVERTISE_CHAN_LIMITS;
1609 if (nla_put_u32(msg, NL80211_ATTR_FEATURE_FLAGS, features))
1610 goto nla_put_failure;
1612 if (rdev->wiphy.ht_capa_mod_mask &&
1613 nla_put(msg, NL80211_ATTR_HT_CAPABILITY_MASK,
1614 sizeof(*rdev->wiphy.ht_capa_mod_mask),
1615 rdev->wiphy.ht_capa_mod_mask))
1616 goto nla_put_failure;
1618 if (rdev->wiphy.flags & WIPHY_FLAG_HAVE_AP_SME &&
1619 rdev->wiphy.max_acl_mac_addrs &&
1620 nla_put_u32(msg, NL80211_ATTR_MAC_ACL_MAX,
1621 rdev->wiphy.max_acl_mac_addrs))
1622 goto nla_put_failure;
1625 * Any information below this point is only available to
1626 * applications that can deal with it being split. This
1627 * helps ensure that newly added capabilities don't break
1628 * older tools by overrunning their buffers.
1630 * We still increment split_start so that in the split
1631 * case we'll continue with more data in the next round,
1632 * but break unconditionally so unsplit data stops here.
1634 state->split_start++;
1637 if (rdev->wiphy.extended_capabilities &&
1638 (nla_put(msg, NL80211_ATTR_EXT_CAPA,
1639 rdev->wiphy.extended_capabilities_len,
1640 rdev->wiphy.extended_capabilities) ||
1641 nla_put(msg, NL80211_ATTR_EXT_CAPA_MASK,
1642 rdev->wiphy.extended_capabilities_len,
1643 rdev->wiphy.extended_capabilities_mask)))
1644 goto nla_put_failure;
1646 if (rdev->wiphy.vht_capa_mod_mask &&
1647 nla_put(msg, NL80211_ATTR_VHT_CAPABILITY_MASK,
1648 sizeof(*rdev->wiphy.vht_capa_mod_mask),
1649 rdev->wiphy.vht_capa_mod_mask))
1650 goto nla_put_failure;
1652 state->split_start++;
1655 if (nl80211_send_coalesce(msg, rdev))
1656 goto nla_put_failure;
1658 if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ) &&
1659 (nla_put_flag(msg, NL80211_ATTR_SUPPORT_5_MHZ) ||
1660 nla_put_flag(msg, NL80211_ATTR_SUPPORT_10_MHZ)))
1661 goto nla_put_failure;
1663 if (rdev->wiphy.max_ap_assoc_sta &&
1664 nla_put_u32(msg, NL80211_ATTR_MAX_AP_ASSOC_STA,
1665 rdev->wiphy.max_ap_assoc_sta))
1666 goto nla_put_failure;
1668 state->split_start++;
1671 if (rdev->wiphy.n_vendor_commands) {
1672 const struct nl80211_vendor_cmd_info *info;
1673 struct nlattr *nested;
1675 nested = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
1677 goto nla_put_failure;
1679 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
1680 info = &rdev->wiphy.vendor_commands[i].info;
1681 if (nla_put(msg, i + 1, sizeof(*info), info))
1682 goto nla_put_failure;
1684 nla_nest_end(msg, nested);
1687 if (rdev->wiphy.n_vendor_events) {
1688 const struct nl80211_vendor_cmd_info *info;
1689 struct nlattr *nested;
1691 nested = nla_nest_start(msg,
1692 NL80211_ATTR_VENDOR_EVENTS);
1694 goto nla_put_failure;
1696 for (i = 0; i < rdev->wiphy.n_vendor_events; i++) {
1697 info = &rdev->wiphy.vendor_events[i];
1698 if (nla_put(msg, i + 1, sizeof(*info), info))
1699 goto nla_put_failure;
1701 nla_nest_end(msg, nested);
1703 state->split_start++;
1706 if (rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH &&
1707 nla_put_u8(msg, NL80211_ATTR_MAX_CSA_COUNTERS,
1708 rdev->wiphy.max_num_csa_counters))
1709 goto nla_put_failure;
1711 if (rdev->wiphy.regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
1712 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
1713 goto nla_put_failure;
1715 if (nla_put(msg, NL80211_ATTR_EXT_FEATURES,
1716 sizeof(rdev->wiphy.ext_features),
1717 rdev->wiphy.ext_features))
1718 goto nla_put_failure;
1721 state->split_start = 0;
1725 genlmsg_end(msg, hdr);
1729 genlmsg_cancel(msg, hdr);
1733 static int nl80211_dump_wiphy_parse(struct sk_buff *skb,
1734 struct netlink_callback *cb,
1735 struct nl80211_dump_wiphy_state *state)
1737 struct nlattr **tb = nl80211_fam.attrbuf;
1738 int ret = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
1739 tb, nl80211_fam.maxattr, nl80211_policy);
1740 /* ignore parse errors for backward compatibility */
1744 state->split = tb[NL80211_ATTR_SPLIT_WIPHY_DUMP];
1745 if (tb[NL80211_ATTR_WIPHY])
1746 state->filter_wiphy = nla_get_u32(tb[NL80211_ATTR_WIPHY]);
1747 if (tb[NL80211_ATTR_WDEV])
1748 state->filter_wiphy = nla_get_u64(tb[NL80211_ATTR_WDEV]) >> 32;
1749 if (tb[NL80211_ATTR_IFINDEX]) {
1750 struct net_device *netdev;
1751 struct cfg80211_registered_device *rdev;
1752 int ifidx = nla_get_u32(tb[NL80211_ATTR_IFINDEX]);
1754 netdev = __dev_get_by_index(sock_net(skb->sk), ifidx);
1757 if (netdev->ieee80211_ptr) {
1758 rdev = wiphy_to_rdev(
1759 netdev->ieee80211_ptr->wiphy);
1760 state->filter_wiphy = rdev->wiphy_idx;
1767 static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
1770 struct nl80211_dump_wiphy_state *state = (void *)cb->args[0];
1771 struct cfg80211_registered_device *rdev;
1775 state = kzalloc(sizeof(*state), GFP_KERNEL);
1780 state->filter_wiphy = -1;
1781 ret = nl80211_dump_wiphy_parse(skb, cb, state);
1787 cb->args[0] = (long)state;
1790 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
1791 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
1793 if (++idx <= state->start)
1795 if (state->filter_wiphy != -1 &&
1796 state->filter_wiphy != rdev->wiphy_idx)
1798 /* attempt to fit multiple wiphy data chunks into the skb */
1800 ret = nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY,
1802 NETLINK_CB(cb->skb).portid,
1804 NLM_F_MULTI, state);
1807 * If sending the wiphy data didn't fit (ENOBUFS
1808 * or EMSGSIZE returned), this SKB is still
1809 * empty (so it's not too big because another
1810 * wiphy dataset is already in the skb) and
1811 * we've not tried to adjust the dump allocation
1812 * yet ... then adjust the alloc size to be
1813 * bigger, and return 1 but with the empty skb.
1814 * This results in an empty message being RX'ed
1815 * in userspace, but that is ignored.
1817 * We can then retry with the larger buffer.
1819 if ((ret == -ENOBUFS || ret == -EMSGSIZE) &&
1820 !skb->len && !state->split &&
1821 cb->min_dump_alloc < 4096) {
1822 cb->min_dump_alloc = 4096;
1823 state->split_start = 0;
1830 } while (state->split_start > 0);
1840 static int nl80211_dump_wiphy_done(struct netlink_callback *cb)
1842 kfree((void *)cb->args[0]);
1846 static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
1848 struct sk_buff *msg;
1849 struct cfg80211_registered_device *rdev = info->user_ptr[0];
1850 struct nl80211_dump_wiphy_state state = {};
1852 msg = nlmsg_new(4096, GFP_KERNEL);
1856 if (nl80211_send_wiphy(rdev, NL80211_CMD_NEW_WIPHY, msg,
1857 info->snd_portid, info->snd_seq, 0,
1863 return genlmsg_reply(msg, info);
1866 static const struct nla_policy txq_params_policy[NL80211_TXQ_ATTR_MAX + 1] = {
1867 [NL80211_TXQ_ATTR_QUEUE] = { .type = NLA_U8 },
1868 [NL80211_TXQ_ATTR_TXOP] = { .type = NLA_U16 },
1869 [NL80211_TXQ_ATTR_CWMIN] = { .type = NLA_U16 },
1870 [NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
1871 [NL80211_TXQ_ATTR_AIFS] = { .type = NLA_U8 },
1874 static int parse_txq_params(struct nlattr *tb[],
1875 struct ieee80211_txq_params *txq_params)
1877 if (!tb[NL80211_TXQ_ATTR_AC] || !tb[NL80211_TXQ_ATTR_TXOP] ||
1878 !tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
1879 !tb[NL80211_TXQ_ATTR_AIFS])
1882 txq_params->ac = nla_get_u8(tb[NL80211_TXQ_ATTR_AC]);
1883 txq_params->txop = nla_get_u16(tb[NL80211_TXQ_ATTR_TXOP]);
1884 txq_params->cwmin = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMIN]);
1885 txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);
1886 txq_params->aifs = nla_get_u8(tb[NL80211_TXQ_ATTR_AIFS]);
1888 if (txq_params->ac >= NL80211_NUM_ACS)
1894 static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev)
1897 * You can only set the channel explicitly for WDS interfaces,
1898 * all others have their channel managed via their respective
1899 * "establish a connection" command (connect, join, ...)
1901 * For AP/GO and mesh mode, the channel can be set with the
1902 * channel userspace API, but is only stored and passed to the
1903 * low-level driver when the AP starts or the mesh is joined.
1904 * This is for backward compatibility, userspace can also give
1905 * the channel in the start-ap or join-mesh commands instead.
1907 * Monitors are special as they are normally slaved to
1908 * whatever else is going on, so they have their own special
1909 * operation to set the monitor channel if possible.
1912 wdev->iftype == NL80211_IFTYPE_AP ||
1913 wdev->iftype == NL80211_IFTYPE_MESH_POINT ||
1914 wdev->iftype == NL80211_IFTYPE_MONITOR ||
1915 wdev->iftype == NL80211_IFTYPE_P2P_GO;
1918 static int nl80211_parse_chandef(struct cfg80211_registered_device *rdev,
1919 struct genl_info *info,
1920 struct cfg80211_chan_def *chandef)
1924 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
1927 control_freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]);
1929 chandef->chan = ieee80211_get_channel(&rdev->wiphy, control_freq);
1930 chandef->width = NL80211_CHAN_WIDTH_20_NOHT;
1931 chandef->center_freq1 = control_freq;
1932 chandef->center_freq2 = 0;
1934 /* Primary channel not allowed */
1935 if (!chandef->chan || chandef->chan->flags & IEEE80211_CHAN_DISABLED)
1938 if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
1939 enum nl80211_channel_type chantype;
1941 chantype = nla_get_u32(
1942 info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
1945 case NL80211_CHAN_NO_HT:
1946 case NL80211_CHAN_HT20:
1947 case NL80211_CHAN_HT40PLUS:
1948 case NL80211_CHAN_HT40MINUS:
1949 cfg80211_chandef_create(chandef, chandef->chan,
1955 } else if (info->attrs[NL80211_ATTR_CHANNEL_WIDTH]) {
1957 nla_get_u32(info->attrs[NL80211_ATTR_CHANNEL_WIDTH]);
1958 if (info->attrs[NL80211_ATTR_CENTER_FREQ1])
1959 chandef->center_freq1 =
1961 info->attrs[NL80211_ATTR_CENTER_FREQ1]);
1962 if (info->attrs[NL80211_ATTR_CENTER_FREQ2])
1963 chandef->center_freq2 =
1965 info->attrs[NL80211_ATTR_CENTER_FREQ2]);
1968 if (!cfg80211_chandef_valid(chandef))
1971 if (!cfg80211_chandef_usable(&rdev->wiphy, chandef,
1972 IEEE80211_CHAN_DISABLED))
1975 if ((chandef->width == NL80211_CHAN_WIDTH_5 ||
1976 chandef->width == NL80211_CHAN_WIDTH_10) &&
1977 !(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_5_10_MHZ))
1983 static int __nl80211_set_channel(struct cfg80211_registered_device *rdev,
1984 struct net_device *dev,
1985 struct genl_info *info)
1987 struct cfg80211_chan_def chandef;
1989 enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR;
1990 struct wireless_dev *wdev = NULL;
1993 wdev = dev->ieee80211_ptr;
1994 if (!nl80211_can_set_dev_channel(wdev))
1997 iftype = wdev->iftype;
1999 result = nl80211_parse_chandef(rdev, info, &chandef);
2004 case NL80211_IFTYPE_AP:
2005 case NL80211_IFTYPE_P2P_GO:
2006 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
2011 if (wdev->beacon_interval) {
2012 if (!dev || !rdev->ops->set_ap_chanwidth ||
2013 !(rdev->wiphy.features &
2014 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE)) {
2019 /* Only allow dynamic channel width changes */
2020 if (chandef.chan != wdev->preset_chandef.chan) {
2024 result = rdev_set_ap_chanwidth(rdev, dev, &chandef);
2028 wdev->preset_chandef = chandef;
2031 case NL80211_IFTYPE_MESH_POINT:
2032 result = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
2034 case NL80211_IFTYPE_MONITOR:
2035 result = cfg80211_set_monitor_channel(rdev, &chandef);
2044 static int nl80211_set_channel(struct sk_buff *skb, struct genl_info *info)
2046 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2047 struct net_device *netdev = info->user_ptr[1];
2049 return __nl80211_set_channel(rdev, netdev, info);
2052 static int nl80211_set_wds_peer(struct sk_buff *skb, struct genl_info *info)
2054 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2055 struct net_device *dev = info->user_ptr[1];
2056 struct wireless_dev *wdev = dev->ieee80211_ptr;
2059 if (!info->attrs[NL80211_ATTR_MAC])
2062 if (netif_running(dev))
2065 if (!rdev->ops->set_wds_peer)
2068 if (wdev->iftype != NL80211_IFTYPE_WDS)
2071 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
2072 return rdev_set_wds_peer(rdev, dev, bssid);
2076 static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
2078 struct cfg80211_registered_device *rdev;
2079 struct net_device *netdev = NULL;
2080 struct wireless_dev *wdev;
2081 int result = 0, rem_txq_params = 0;
2082 struct nlattr *nl_txq_params;
2084 u8 retry_short = 0, retry_long = 0;
2085 u32 frag_threshold = 0, rts_threshold = 0;
2086 u8 coverage_class = 0;
2091 * Try to find the wiphy and netdev. Normally this
2092 * function shouldn't need the netdev, but this is
2093 * done for backward compatibility -- previously
2094 * setting the channel was done per wiphy, but now
2095 * it is per netdev. Previous userland like hostapd
2096 * also passed a netdev to set_wiphy, so that it is
2097 * possible to let that go to the right netdev!
2100 if (info->attrs[NL80211_ATTR_IFINDEX]) {
2101 int ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
2103 netdev = __dev_get_by_index(genl_info_net(info), ifindex);
2104 if (netdev && netdev->ieee80211_ptr)
2105 rdev = wiphy_to_rdev(netdev->ieee80211_ptr->wiphy);
2111 rdev = __cfg80211_rdev_from_attrs(genl_info_net(info),
2114 return PTR_ERR(rdev);
2119 wdev = netdev->ieee80211_ptr;
2122 * end workaround code, by now the rdev is available
2123 * and locked, and wdev may or may not be NULL.
2126 if (info->attrs[NL80211_ATTR_WIPHY_NAME])
2127 result = cfg80211_dev_rename(
2128 rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
2133 if (info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS]) {
2134 struct ieee80211_txq_params txq_params;
2135 struct nlattr *tb[NL80211_TXQ_ATTR_MAX + 1];
2137 if (!rdev->ops->set_txq_params)
2143 if (netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
2144 netdev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
2147 if (!netif_running(netdev))
2150 nla_for_each_nested(nl_txq_params,
2151 info->attrs[NL80211_ATTR_WIPHY_TXQ_PARAMS],
2153 result = nla_parse(tb, NL80211_TXQ_ATTR_MAX,
2154 nla_data(nl_txq_params),
2155 nla_len(nl_txq_params),
2159 result = parse_txq_params(tb, &txq_params);
2163 result = rdev_set_txq_params(rdev, netdev,
2170 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
2171 result = __nl80211_set_channel(
2173 nl80211_can_set_dev_channel(wdev) ? netdev : NULL,
2179 if (info->attrs[NL80211_ATTR_WIPHY_TX_POWER_SETTING]) {
2180 struct wireless_dev *txp_wdev = wdev;
2181 enum nl80211_tx_power_setting type;
2184 if (!(rdev->wiphy.features & NL80211_FEATURE_VIF_TXPOWER))
2187 if (!rdev->ops->set_tx_power)
2190 idx = NL80211_ATTR_WIPHY_TX_POWER_SETTING;
2191 type = nla_get_u32(info->attrs[idx]);
2193 if (!info->attrs[NL80211_ATTR_WIPHY_TX_POWER_LEVEL] &&
2194 (type != NL80211_TX_POWER_AUTOMATIC))
2197 if (type != NL80211_TX_POWER_AUTOMATIC) {
2198 idx = NL80211_ATTR_WIPHY_TX_POWER_LEVEL;
2199 mbm = nla_get_u32(info->attrs[idx]);
2202 result = rdev_set_tx_power(rdev, txp_wdev, type, mbm);
2207 if (info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX] &&
2208 info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]) {
2210 if ((!rdev->wiphy.available_antennas_tx &&
2211 !rdev->wiphy.available_antennas_rx) ||
2212 !rdev->ops->set_antenna)
2215 tx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_TX]);
2216 rx_ant = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_ANTENNA_RX]);
2218 /* reject antenna configurations which don't match the
2219 * available antenna masks, except for the "all" mask */
2220 if ((~tx_ant && (tx_ant & ~rdev->wiphy.available_antennas_tx)) ||
2221 (~rx_ant && (rx_ant & ~rdev->wiphy.available_antennas_rx)))
2224 tx_ant = tx_ant & rdev->wiphy.available_antennas_tx;
2225 rx_ant = rx_ant & rdev->wiphy.available_antennas_rx;
2227 result = rdev_set_antenna(rdev, tx_ant, rx_ant);
2234 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]) {
2235 retry_short = nla_get_u8(
2236 info->attrs[NL80211_ATTR_WIPHY_RETRY_SHORT]);
2237 if (retry_short == 0)
2240 changed |= WIPHY_PARAM_RETRY_SHORT;
2243 if (info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]) {
2244 retry_long = nla_get_u8(
2245 info->attrs[NL80211_ATTR_WIPHY_RETRY_LONG]);
2246 if (retry_long == 0)
2249 changed |= WIPHY_PARAM_RETRY_LONG;
2252 if (info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]) {
2253 frag_threshold = nla_get_u32(
2254 info->attrs[NL80211_ATTR_WIPHY_FRAG_THRESHOLD]);
2255 if (frag_threshold < 256)
2258 if (frag_threshold != (u32) -1) {
2260 * Fragments (apart from the last one) are required to
2261 * have even length. Make the fragmentation code
2262 * simpler by stripping LSB should someone try to use
2263 * odd threshold value.
2265 frag_threshold &= ~0x1;
2267 changed |= WIPHY_PARAM_FRAG_THRESHOLD;
2270 if (info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]) {
2271 rts_threshold = nla_get_u32(
2272 info->attrs[NL80211_ATTR_WIPHY_RTS_THRESHOLD]);
2273 changed |= WIPHY_PARAM_RTS_THRESHOLD;
2276 if (info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]) {
2277 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
2280 coverage_class = nla_get_u8(
2281 info->attrs[NL80211_ATTR_WIPHY_COVERAGE_CLASS]);
2282 changed |= WIPHY_PARAM_COVERAGE_CLASS;
2285 if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
2286 if (!(rdev->wiphy.features & NL80211_FEATURE_ACKTO_ESTIMATION))
2289 changed |= WIPHY_PARAM_DYN_ACK;
2293 u8 old_retry_short, old_retry_long;
2294 u32 old_frag_threshold, old_rts_threshold;
2295 u8 old_coverage_class;
2297 if (!rdev->ops->set_wiphy_params)
2300 old_retry_short = rdev->wiphy.retry_short;
2301 old_retry_long = rdev->wiphy.retry_long;
2302 old_frag_threshold = rdev->wiphy.frag_threshold;
2303 old_rts_threshold = rdev->wiphy.rts_threshold;
2304 old_coverage_class = rdev->wiphy.coverage_class;
2306 if (changed & WIPHY_PARAM_RETRY_SHORT)
2307 rdev->wiphy.retry_short = retry_short;
2308 if (changed & WIPHY_PARAM_RETRY_LONG)
2309 rdev->wiphy.retry_long = retry_long;
2310 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
2311 rdev->wiphy.frag_threshold = frag_threshold;
2312 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
2313 rdev->wiphy.rts_threshold = rts_threshold;
2314 if (changed & WIPHY_PARAM_COVERAGE_CLASS)
2315 rdev->wiphy.coverage_class = coverage_class;
2317 result = rdev_set_wiphy_params(rdev, changed);
2319 rdev->wiphy.retry_short = old_retry_short;
2320 rdev->wiphy.retry_long = old_retry_long;
2321 rdev->wiphy.frag_threshold = old_frag_threshold;
2322 rdev->wiphy.rts_threshold = old_rts_threshold;
2323 rdev->wiphy.coverage_class = old_coverage_class;
2330 static inline u64 wdev_id(struct wireless_dev *wdev)
2332 return (u64)wdev->identifier |
2333 ((u64)wiphy_to_rdev(wdev->wiphy)->wiphy_idx << 32);
2336 static int nl80211_send_chandef(struct sk_buff *msg,
2337 const struct cfg80211_chan_def *chandef)
2339 if (WARN_ON(!cfg80211_chandef_valid(chandef)))
2342 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
2343 chandef->chan->center_freq))
2345 switch (chandef->width) {
2346 case NL80211_CHAN_WIDTH_20_NOHT:
2347 case NL80211_CHAN_WIDTH_20:
2348 case NL80211_CHAN_WIDTH_40:
2349 if (nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
2350 cfg80211_get_chandef_type(chandef)))
2356 if (nla_put_u32(msg, NL80211_ATTR_CHANNEL_WIDTH, chandef->width))
2358 if (nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ1, chandef->center_freq1))
2360 if (chandef->center_freq2 &&
2361 nla_put_u32(msg, NL80211_ATTR_CENTER_FREQ2, chandef->center_freq2))
2366 static int nl80211_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
2367 struct cfg80211_registered_device *rdev,
2368 struct wireless_dev *wdev, bool removal)
2370 struct net_device *dev = wdev->netdev;
2371 u8 cmd = NL80211_CMD_NEW_INTERFACE;
2375 cmd = NL80211_CMD_DEL_INTERFACE;
2377 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
2382 (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2383 nla_put_string(msg, NL80211_ATTR_IFNAME, dev->name)))
2384 goto nla_put_failure;
2386 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
2387 nla_put_u32(msg, NL80211_ATTR_IFTYPE, wdev->iftype) ||
2388 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
2389 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, wdev_address(wdev)) ||
2390 nla_put_u32(msg, NL80211_ATTR_GENERATION,
2391 rdev->devlist_generation ^
2392 (cfg80211_rdev_list_generation << 2)))
2393 goto nla_put_failure;
2395 if (rdev->ops->get_channel) {
2397 struct cfg80211_chan_def chandef;
2399 ret = rdev_get_channel(rdev, wdev, &chandef);
2401 if (nl80211_send_chandef(msg, &chandef))
2402 goto nla_put_failure;
2406 if (wdev->ssid_len) {
2407 if (nla_put(msg, NL80211_ATTR_SSID, wdev->ssid_len, wdev->ssid))
2408 goto nla_put_failure;
2411 genlmsg_end(msg, hdr);
2415 genlmsg_cancel(msg, hdr);
2419 static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
2423 int wp_start = cb->args[0];
2424 int if_start = cb->args[1];
2425 struct cfg80211_registered_device *rdev;
2426 struct wireless_dev *wdev;
2429 list_for_each_entry(rdev, &cfg80211_rdev_list, list) {
2430 if (!net_eq(wiphy_net(&rdev->wiphy), sock_net(skb->sk)))
2432 if (wp_idx < wp_start) {
2438 list_for_each_entry(wdev, &rdev->wdev_list, list) {
2439 if (if_idx < if_start) {
2443 if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).portid,
2444 cb->nlh->nlmsg_seq, NLM_F_MULTI,
2445 rdev, wdev, false) < 0) {
2456 cb->args[0] = wp_idx;
2457 cb->args[1] = if_idx;
2462 static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
2464 struct sk_buff *msg;
2465 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2466 struct wireless_dev *wdev = info->user_ptr[1];
2468 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2472 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2473 rdev, wdev, false) < 0) {
2478 return genlmsg_reply(msg, info);
2481 static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
2482 [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
2483 [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
2484 [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
2485 [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
2486 [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
2487 [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
2490 static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
2492 struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
2500 if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
2501 nla, mntr_flags_policy))
2504 for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
2506 *mntrflags |= (1<<flag);
2511 static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev,
2512 struct net_device *netdev, u8 use_4addr,
2513 enum nl80211_iftype iftype)
2516 if (netdev && (netdev->priv_flags & IFF_BRIDGE_PORT))
2522 case NL80211_IFTYPE_AP_VLAN:
2523 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP)
2526 case NL80211_IFTYPE_STATION:
2527 if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION)
2537 static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
2539 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2540 struct vif_params params;
2542 enum nl80211_iftype otype, ntype;
2543 struct net_device *dev = info->user_ptr[1];
2544 u32 _flags, *flags = NULL;
2545 bool change = false;
2547 memset(¶ms, 0, sizeof(params));
2549 otype = ntype = dev->ieee80211_ptr->iftype;
2551 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2552 ntype = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2555 if (ntype > NL80211_IFTYPE_MAX)
2559 if (info->attrs[NL80211_ATTR_MESH_ID]) {
2560 struct wireless_dev *wdev = dev->ieee80211_ptr;
2562 if (ntype != NL80211_IFTYPE_MESH_POINT)
2564 if (netif_running(dev))
2568 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2569 IEEE80211_MAX_MESH_ID_LEN);
2570 wdev->mesh_id_up_len =
2571 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2572 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2573 wdev->mesh_id_up_len);
2577 if (info->attrs[NL80211_ATTR_4ADDR]) {
2578 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2580 err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype);
2584 params.use_4addr = -1;
2587 if (info->attrs[NL80211_ATTR_MNTR_FLAGS]) {
2588 if (ntype != NL80211_IFTYPE_MONITOR)
2590 err = parse_monitor_flags(info->attrs[NL80211_ATTR_MNTR_FLAGS],
2599 if (flags && (*flags & MONITOR_FLAG_ACTIVE) &&
2600 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2604 err = cfg80211_change_iface(rdev, dev, ntype, flags, ¶ms);
2608 if (!err && params.use_4addr != -1)
2609 dev->ieee80211_ptr->use_4addr = params.use_4addr;
2614 static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
2616 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2617 struct vif_params params;
2618 struct wireless_dev *wdev;
2619 struct sk_buff *msg, *event;
2621 enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
2624 /* to avoid failing a new interface creation due to pending removal */
2625 cfg80211_destroy_ifaces(rdev);
2627 memset(¶ms, 0, sizeof(params));
2629 if (!info->attrs[NL80211_ATTR_IFNAME])
2632 if (info->attrs[NL80211_ATTR_IFTYPE]) {
2633 type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
2634 if (type > NL80211_IFTYPE_MAX)
2638 if (!rdev->ops->add_virtual_intf ||
2639 !(rdev->wiphy.interface_modes & (1 << type)))
2642 if ((type == NL80211_IFTYPE_P2P_DEVICE ||
2643 rdev->wiphy.features & NL80211_FEATURE_MAC_ON_CREATE) &&
2644 info->attrs[NL80211_ATTR_MAC]) {
2645 nla_memcpy(params.macaddr, info->attrs[NL80211_ATTR_MAC],
2647 if (!is_valid_ether_addr(params.macaddr))
2648 return -EADDRNOTAVAIL;
2651 if (info->attrs[NL80211_ATTR_4ADDR]) {
2652 params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]);
2653 err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type);
2658 err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
2659 info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
2662 if (!err && (flags & MONITOR_FLAG_ACTIVE) &&
2663 !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
2666 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2670 wdev = rdev_add_virtual_intf(rdev,
2671 nla_data(info->attrs[NL80211_ATTR_IFNAME]),
2672 NET_NAME_USER, type, err ? NULL : &flags,
2674 if (WARN_ON(!wdev)) {
2677 } else if (IS_ERR(wdev)) {
2679 return PTR_ERR(wdev);
2682 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
2683 wdev->owner_nlportid = info->snd_portid;
2686 case NL80211_IFTYPE_MESH_POINT:
2687 if (!info->attrs[NL80211_ATTR_MESH_ID])
2690 BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN !=
2691 IEEE80211_MAX_MESH_ID_LEN);
2692 wdev->mesh_id_up_len =
2693 nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
2694 memcpy(wdev->ssid, nla_data(info->attrs[NL80211_ATTR_MESH_ID]),
2695 wdev->mesh_id_up_len);
2698 case NL80211_IFTYPE_P2P_DEVICE:
2700 * P2P Device doesn't have a netdev, so doesn't go
2701 * through the netdev notifier and must be added here
2703 mutex_init(&wdev->mtx);
2704 INIT_LIST_HEAD(&wdev->event_list);
2705 spin_lock_init(&wdev->event_lock);
2706 INIT_LIST_HEAD(&wdev->mgmt_registrations);
2707 spin_lock_init(&wdev->mgmt_registrations_lock);
2709 wdev->identifier = ++rdev->wdev_id;
2710 list_add_rcu(&wdev->list, &rdev->wdev_list);
2711 rdev->devlist_generation++;
2717 if (nl80211_send_iface(msg, info->snd_portid, info->snd_seq, 0,
2718 rdev, wdev, false) < 0) {
2723 event = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2725 if (nl80211_send_iface(event, 0, 0, 0,
2726 rdev, wdev, false) < 0) {
2731 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2732 event, 0, NL80211_MCGRP_CONFIG,
2737 return genlmsg_reply(msg, info);
2740 static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
2742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2743 struct wireless_dev *wdev = info->user_ptr[1];
2744 struct sk_buff *msg;
2747 if (!rdev->ops->del_virtual_intf)
2750 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2751 if (msg && nl80211_send_iface(msg, 0, 0, 0, rdev, wdev, true) < 0) {
2757 * If we remove a wireless device without a netdev then clear
2758 * user_ptr[1] so that nl80211_post_doit won't dereference it
2759 * to check if it needs to do dev_put(). Otherwise it crashes
2760 * since the wdev has been freed, unlike with a netdev where
2761 * we need the dev_put() for the netdev to really be freed.
2764 info->user_ptr[1] = NULL;
2766 status = rdev_del_virtual_intf(rdev, wdev);
2767 if (status >= 0 && msg)
2768 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
2769 msg, 0, NL80211_MCGRP_CONFIG,
2777 static int nl80211_set_noack_map(struct sk_buff *skb, struct genl_info *info)
2779 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2780 struct net_device *dev = info->user_ptr[1];
2783 if (!info->attrs[NL80211_ATTR_NOACK_MAP])
2786 if (!rdev->ops->set_noack_map)
2789 noack_map = nla_get_u16(info->attrs[NL80211_ATTR_NOACK_MAP]);
2791 return rdev_set_noack_map(rdev, dev, noack_map);
2794 struct get_key_cookie {
2795 struct sk_buff *msg;
2800 static void get_key_callback(void *c, struct key_params *params)
2803 struct get_key_cookie *cookie = c;
2806 nla_put(cookie->msg, NL80211_ATTR_KEY_DATA,
2807 params->key_len, params->key)) ||
2809 nla_put(cookie->msg, NL80211_ATTR_KEY_SEQ,
2810 params->seq_len, params->seq)) ||
2812 nla_put_u32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
2814 goto nla_put_failure;
2816 key = nla_nest_start(cookie->msg, NL80211_ATTR_KEY);
2818 goto nla_put_failure;
2821 nla_put(cookie->msg, NL80211_KEY_DATA,
2822 params->key_len, params->key)) ||
2824 nla_put(cookie->msg, NL80211_KEY_SEQ,
2825 params->seq_len, params->seq)) ||
2827 nla_put_u32(cookie->msg, NL80211_KEY_CIPHER,
2829 goto nla_put_failure;
2831 if (nla_put_u8(cookie->msg, NL80211_ATTR_KEY_IDX, cookie->idx))
2832 goto nla_put_failure;
2834 nla_nest_end(cookie->msg, key);
2841 static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
2843 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2845 struct net_device *dev = info->user_ptr[1];
2847 const u8 *mac_addr = NULL;
2849 struct get_key_cookie cookie = {
2853 struct sk_buff *msg;
2855 if (info->attrs[NL80211_ATTR_KEY_IDX])
2856 key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
2861 if (info->attrs[NL80211_ATTR_MAC])
2862 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
2864 pairwise = !!mac_addr;
2865 if (info->attrs[NL80211_ATTR_KEY_TYPE]) {
2866 u32 kt = nla_get_u32(info->attrs[NL80211_ATTR_KEY_TYPE]);
2867 if (kt >= NUM_NL80211_KEYTYPES)
2869 if (kt != NL80211_KEYTYPE_GROUP &&
2870 kt != NL80211_KEYTYPE_PAIRWISE)
2872 pairwise = kt == NL80211_KEYTYPE_PAIRWISE;
2875 if (!rdev->ops->get_key)
2878 if (!pairwise && mac_addr && !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
2881 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
2885 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
2886 NL80211_CMD_NEW_KEY);
2888 goto nla_put_failure;
2891 cookie.idx = key_idx;
2893 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
2894 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_idx))
2895 goto nla_put_failure;
2897 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr))
2898 goto nla_put_failure;
2900 err = rdev_get_key(rdev, dev, key_idx, pairwise, mac_addr, &cookie,
2907 goto nla_put_failure;
2909 genlmsg_end(msg, hdr);
2910 return genlmsg_reply(msg, info);
2919 static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
2921 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2922 struct key_parse key;
2924 struct net_device *dev = info->user_ptr[1];
2926 err = nl80211_parse_key(info, &key);
2933 /* only support setting default key */
2934 if (!key.def && !key.defmgmt)
2937 wdev_lock(dev->ieee80211_ptr);
2940 if (!rdev->ops->set_default_key) {
2945 err = nl80211_key_allowed(dev->ieee80211_ptr);
2949 err = rdev_set_default_key(rdev, dev, key.idx,
2950 key.def_uni, key.def_multi);
2955 #ifdef CONFIG_CFG80211_WEXT
2956 dev->ieee80211_ptr->wext.default_key = key.idx;
2959 if (key.def_uni || !key.def_multi) {
2964 if (!rdev->ops->set_default_mgmt_key) {
2969 err = nl80211_key_allowed(dev->ieee80211_ptr);
2973 err = rdev_set_default_mgmt_key(rdev, dev, key.idx);
2977 #ifdef CONFIG_CFG80211_WEXT
2978 dev->ieee80211_ptr->wext.default_mgmt_key = key.idx;
2983 wdev_unlock(dev->ieee80211_ptr);
2988 static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
2990 struct cfg80211_registered_device *rdev = info->user_ptr[0];
2992 struct net_device *dev = info->user_ptr[1];
2993 struct key_parse key;
2994 const u8 *mac_addr = NULL;
2996 err = nl80211_parse_key(info, &key);
3003 if (info->attrs[NL80211_ATTR_MAC])
3004 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3006 if (key.type == -1) {
3008 key.type = NL80211_KEYTYPE_PAIRWISE;
3010 key.type = NL80211_KEYTYPE_GROUP;
3014 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3015 key.type != NL80211_KEYTYPE_GROUP)
3018 if (!rdev->ops->add_key)
3021 if (cfg80211_validate_key_settings(rdev, &key.p, key.idx,
3022 key.type == NL80211_KEYTYPE_PAIRWISE,
3026 wdev_lock(dev->ieee80211_ptr);
3027 err = nl80211_key_allowed(dev->ieee80211_ptr);
3029 err = rdev_add_key(rdev, dev, key.idx,
3030 key.type == NL80211_KEYTYPE_PAIRWISE,
3032 wdev_unlock(dev->ieee80211_ptr);
3037 static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
3039 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3041 struct net_device *dev = info->user_ptr[1];
3042 u8 *mac_addr = NULL;
3043 struct key_parse key;
3045 err = nl80211_parse_key(info, &key);
3049 if (info->attrs[NL80211_ATTR_MAC])
3050 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3052 if (key.type == -1) {
3054 key.type = NL80211_KEYTYPE_PAIRWISE;
3056 key.type = NL80211_KEYTYPE_GROUP;
3060 if (key.type != NL80211_KEYTYPE_PAIRWISE &&
3061 key.type != NL80211_KEYTYPE_GROUP)
3064 if (!rdev->ops->del_key)
3067 wdev_lock(dev->ieee80211_ptr);
3068 err = nl80211_key_allowed(dev->ieee80211_ptr);
3070 if (key.type == NL80211_KEYTYPE_GROUP && mac_addr &&
3071 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
3075 err = rdev_del_key(rdev, dev, key.idx,
3076 key.type == NL80211_KEYTYPE_PAIRWISE,
3079 #ifdef CONFIG_CFG80211_WEXT
3081 if (key.idx == dev->ieee80211_ptr->wext.default_key)
3082 dev->ieee80211_ptr->wext.default_key = -1;
3083 else if (key.idx == dev->ieee80211_ptr->wext.default_mgmt_key)
3084 dev->ieee80211_ptr->wext.default_mgmt_key = -1;
3087 wdev_unlock(dev->ieee80211_ptr);
3092 /* This function returns an error or the number of nested attributes */
3093 static int validate_acl_mac_addrs(struct nlattr *nl_attr)
3095 struct nlattr *attr;
3096 int n_entries = 0, tmp;
3098 nla_for_each_nested(attr, nl_attr, tmp) {
3099 if (nla_len(attr) != ETH_ALEN)
3109 * This function parses ACL information and allocates memory for ACL data.
3110 * On successful return, the calling function is responsible to free the
3111 * ACL buffer returned by this function.
3113 static struct cfg80211_acl_data *parse_acl_data(struct wiphy *wiphy,
3114 struct genl_info *info)
3116 enum nl80211_acl_policy acl_policy;
3117 struct nlattr *attr;
3118 struct cfg80211_acl_data *acl;
3119 int i = 0, n_entries, tmp;
3121 if (!wiphy->max_acl_mac_addrs)
3122 return ERR_PTR(-EOPNOTSUPP);
3124 if (!info->attrs[NL80211_ATTR_ACL_POLICY])
3125 return ERR_PTR(-EINVAL);
3127 acl_policy = nla_get_u32(info->attrs[NL80211_ATTR_ACL_POLICY]);
3128 if (acl_policy != NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED &&
3129 acl_policy != NL80211_ACL_POLICY_DENY_UNLESS_LISTED)
3130 return ERR_PTR(-EINVAL);
3132 if (!info->attrs[NL80211_ATTR_MAC_ADDRS])
3133 return ERR_PTR(-EINVAL);
3135 n_entries = validate_acl_mac_addrs(info->attrs[NL80211_ATTR_MAC_ADDRS]);
3137 return ERR_PTR(n_entries);
3139 if (n_entries > wiphy->max_acl_mac_addrs)
3140 return ERR_PTR(-ENOTSUPP);
3142 acl = kzalloc(sizeof(*acl) + (sizeof(struct mac_address) * n_entries),
3145 return ERR_PTR(-ENOMEM);
3147 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_MAC_ADDRS], tmp) {
3148 memcpy(acl->mac_addrs[i].addr, nla_data(attr), ETH_ALEN);
3152 acl->n_acl_entries = n_entries;
3153 acl->acl_policy = acl_policy;
3158 static int nl80211_set_mac_acl(struct sk_buff *skb, struct genl_info *info)
3160 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3161 struct net_device *dev = info->user_ptr[1];
3162 struct cfg80211_acl_data *acl;
3165 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3166 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3169 if (!dev->ieee80211_ptr->beacon_interval)
3172 acl = parse_acl_data(&rdev->wiphy, info);
3174 return PTR_ERR(acl);
3176 err = rdev_set_mac_acl(rdev, dev, acl);
3183 static int nl80211_parse_beacon(struct nlattr *attrs[],
3184 struct cfg80211_beacon_data *bcn)
3186 bool haveinfo = false;
3188 if (!is_valid_ie_attr(attrs[NL80211_ATTR_BEACON_TAIL]) ||
3189 !is_valid_ie_attr(attrs[NL80211_ATTR_IE]) ||
3190 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_PROBE_RESP]) ||
3191 !is_valid_ie_attr(attrs[NL80211_ATTR_IE_ASSOC_RESP]))
3194 memset(bcn, 0, sizeof(*bcn));
3196 if (attrs[NL80211_ATTR_BEACON_HEAD]) {
3197 bcn->head = nla_data(attrs[NL80211_ATTR_BEACON_HEAD]);
3198 bcn->head_len = nla_len(attrs[NL80211_ATTR_BEACON_HEAD]);
3204 if (attrs[NL80211_ATTR_BEACON_TAIL]) {
3205 bcn->tail = nla_data(attrs[NL80211_ATTR_BEACON_TAIL]);
3206 bcn->tail_len = nla_len(attrs[NL80211_ATTR_BEACON_TAIL]);
3213 if (attrs[NL80211_ATTR_IE]) {
3214 bcn->beacon_ies = nla_data(attrs[NL80211_ATTR_IE]);
3215 bcn->beacon_ies_len = nla_len(attrs[NL80211_ATTR_IE]);
3218 if (attrs[NL80211_ATTR_IE_PROBE_RESP]) {
3219 bcn->proberesp_ies =
3220 nla_data(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3221 bcn->proberesp_ies_len =
3222 nla_len(attrs[NL80211_ATTR_IE_PROBE_RESP]);
3225 if (attrs[NL80211_ATTR_IE_ASSOC_RESP]) {
3226 bcn->assocresp_ies =
3227 nla_data(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3228 bcn->assocresp_ies_len =
3229 nla_len(attrs[NL80211_ATTR_IE_ASSOC_RESP]);
3232 if (attrs[NL80211_ATTR_PROBE_RESP]) {
3233 bcn->probe_resp = nla_data(attrs[NL80211_ATTR_PROBE_RESP]);
3234 bcn->probe_resp_len = nla_len(attrs[NL80211_ATTR_PROBE_RESP]);
3240 static bool nl80211_get_ap_channel(struct cfg80211_registered_device *rdev,
3241 struct cfg80211_ap_settings *params)
3243 struct wireless_dev *wdev;
3246 list_for_each_entry(wdev, &rdev->wdev_list, list) {
3247 if (wdev->iftype != NL80211_IFTYPE_AP &&
3248 wdev->iftype != NL80211_IFTYPE_P2P_GO)
3251 if (!wdev->preset_chandef.chan)
3254 params->chandef = wdev->preset_chandef;
3262 static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
3263 enum nl80211_auth_type auth_type,
3264 enum nl80211_commands cmd)
3266 if (auth_type > NL80211_AUTHTYPE_MAX)
3270 case NL80211_CMD_AUTHENTICATE:
3271 if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
3272 auth_type == NL80211_AUTHTYPE_SAE)
3275 case NL80211_CMD_CONNECT:
3276 case NL80211_CMD_START_AP:
3277 /* SAE not supported yet */
3278 if (auth_type == NL80211_AUTHTYPE_SAE)
3286 static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
3288 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3289 struct net_device *dev = info->user_ptr[1];
3290 struct wireless_dev *wdev = dev->ieee80211_ptr;
3291 struct cfg80211_ap_settings params;
3294 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3295 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3298 if (!rdev->ops->start_ap)
3301 if (wdev->beacon_interval)
3304 memset(¶ms, 0, sizeof(params));
3306 /* these are required for START_AP */
3307 if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
3308 !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
3309 !info->attrs[NL80211_ATTR_BEACON_HEAD])
3312 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon);
3316 params.beacon_interval =
3317 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
3318 params.dtim_period =
3319 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
3321 err = cfg80211_validate_beacon_int(rdev, params.beacon_interval);
3326 * In theory, some of these attributes should be required here
3327 * but since they were not used when the command was originally
3328 * added, keep them optional for old user space programs to let
3329 * them continue to work with drivers that do not need the
3330 * additional information -- drivers must check!
3332 if (info->attrs[NL80211_ATTR_SSID]) {
3333 params.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
3335 nla_len(info->attrs[NL80211_ATTR_SSID]);
3336 if (params.ssid_len == 0 ||
3337 params.ssid_len > IEEE80211_MAX_SSID_LEN)
3341 if (info->attrs[NL80211_ATTR_HIDDEN_SSID]) {
3342 params.hidden_ssid = nla_get_u32(
3343 info->attrs[NL80211_ATTR_HIDDEN_SSID]);
3344 if (params.hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE &&
3345 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_LEN &&
3346 params.hidden_ssid != NL80211_HIDDEN_SSID_ZERO_CONTENTS)
3350 params.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
3352 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
3353 params.auth_type = nla_get_u32(
3354 info->attrs[NL80211_ATTR_AUTH_TYPE]);
3355 if (!nl80211_valid_auth_type(rdev, params.auth_type,
3356 NL80211_CMD_START_AP))
3359 params.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
3361 err = nl80211_crypto_settings(rdev, info, ¶ms.crypto,
3362 NL80211_MAX_NR_CIPHER_SUITES);
3366 if (info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]) {
3367 if (!(rdev->wiphy.features & NL80211_FEATURE_INACTIVITY_TIMER))
3369 params.inactivity_timeout = nla_get_u16(
3370 info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]);
3373 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
3374 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3376 params.p2p_ctwindow =
3377 nla_get_u8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
3378 if (params.p2p_ctwindow > 127)
3380 if (params.p2p_ctwindow != 0 &&
3381 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
3385 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
3388 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3390 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
3393 params.p2p_opp_ps = tmp;
3394 if (params.p2p_opp_ps != 0 &&
3395 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
3399 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
3400 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
3403 } else if (wdev->preset_chandef.chan) {
3404 params.chandef = wdev->preset_chandef;
3405 } else if (!nl80211_get_ap_channel(rdev, ¶ms))
3408 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
3412 if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
3413 params.acl = parse_acl_data(&rdev->wiphy, info);
3414 if (IS_ERR(params.acl))
3415 return PTR_ERR(params.acl);
3418 if (info->attrs[NL80211_ATTR_SMPS_MODE]) {
3420 nla_get_u8(info->attrs[NL80211_ATTR_SMPS_MODE]);
3421 switch (params.smps_mode) {
3422 case NL80211_SMPS_OFF:
3424 case NL80211_SMPS_STATIC:
3425 if (!(rdev->wiphy.features &
3426 NL80211_FEATURE_STATIC_SMPS))
3429 case NL80211_SMPS_DYNAMIC:
3430 if (!(rdev->wiphy.features &
3431 NL80211_FEATURE_DYNAMIC_SMPS))
3438 params.smps_mode = NL80211_SMPS_OFF;
3442 err = rdev_start_ap(rdev, dev, ¶ms);
3444 wdev->preset_chandef = params.chandef;
3445 wdev->beacon_interval = params.beacon_interval;
3446 wdev->chandef = params.chandef;
3447 wdev->ssid_len = params.ssid_len;
3448 memcpy(wdev->ssid, params.ssid, wdev->ssid_len);
3457 static int nl80211_set_beacon(struct sk_buff *skb, struct genl_info *info)
3459 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3460 struct net_device *dev = info->user_ptr[1];
3461 struct wireless_dev *wdev = dev->ieee80211_ptr;
3462 struct cfg80211_beacon_data params;
3465 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
3466 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
3469 if (!rdev->ops->change_beacon)
3472 if (!wdev->beacon_interval)
3475 err = nl80211_parse_beacon(info->attrs, ¶ms);
3480 err = rdev_change_beacon(rdev, dev, ¶ms);
3486 static int nl80211_stop_ap(struct sk_buff *skb, struct genl_info *info)
3488 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3489 struct net_device *dev = info->user_ptr[1];
3491 return cfg80211_stop_ap(rdev, dev, false);
3494 static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
3495 [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
3496 [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
3497 [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
3498 [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG },
3499 [NL80211_STA_FLAG_AUTHENTICATED] = { .type = NLA_FLAG },
3500 [NL80211_STA_FLAG_TDLS_PEER] = { .type = NLA_FLAG },
3503 static int parse_station_flags(struct genl_info *info,
3504 enum nl80211_iftype iftype,
3505 struct station_parameters *params)
3507 struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
3512 * Try parsing the new attribute first so userspace
3513 * can specify both for older kernels.
3515 nla = info->attrs[NL80211_ATTR_STA_FLAGS2];
3517 struct nl80211_sta_flag_update *sta_flags;
3519 sta_flags = nla_data(nla);
3520 params->sta_flags_mask = sta_flags->mask;
3521 params->sta_flags_set = sta_flags->set;
3522 params->sta_flags_set &= params->sta_flags_mask;
3523 if ((params->sta_flags_mask |
3524 params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID))
3529 /* if present, parse the old attribute */
3531 nla = info->attrs[NL80211_ATTR_STA_FLAGS];
3535 if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
3536 nla, sta_flags_policy))
3540 * Only allow certain flags for interface types so that
3541 * other attributes are silently ignored. Remember that
3542 * this is backward compatibility code with old userspace
3543 * and shouldn't be hit in other cases anyway.
3546 case NL80211_IFTYPE_AP:
3547 case NL80211_IFTYPE_AP_VLAN:
3548 case NL80211_IFTYPE_P2P_GO:
3549 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3550 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
3551 BIT(NL80211_STA_FLAG_WME) |
3552 BIT(NL80211_STA_FLAG_MFP);
3554 case NL80211_IFTYPE_P2P_CLIENT:
3555 case NL80211_IFTYPE_STATION:
3556 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
3557 BIT(NL80211_STA_FLAG_TDLS_PEER);
3559 case NL80211_IFTYPE_MESH_POINT:
3560 params->sta_flags_mask = BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3561 BIT(NL80211_STA_FLAG_MFP) |
3562 BIT(NL80211_STA_FLAG_AUTHORIZED);
3567 for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
3569 params->sta_flags_set |= (1<<flag);
3571 /* no longer support new API additions in old API */
3572 if (flag > NL80211_STA_FLAG_MAX_OLD_API)
3580 static bool nl80211_put_sta_rate(struct sk_buff *msg, struct rate_info *info,
3583 struct nlattr *rate;
3586 enum nl80211_attrs rate_flg;
3588 rate = nla_nest_start(msg, attr);
3592 /* cfg80211_calculate_bitrate will return 0 for mcs >= 32 */
3593 bitrate = cfg80211_calculate_bitrate(info);
3594 /* report 16-bit bitrate only if we can */
3595 bitrate_compat = bitrate < (1UL << 16) ? bitrate : 0;
3597 nla_put_u32(msg, NL80211_RATE_INFO_BITRATE32, bitrate))
3599 if (bitrate_compat > 0 &&
3600 nla_put_u16(msg, NL80211_RATE_INFO_BITRATE, bitrate_compat))
3604 case RATE_INFO_BW_5:
3605 rate_flg = NL80211_RATE_INFO_5_MHZ_WIDTH;
3607 case RATE_INFO_BW_10:
3608 rate_flg = NL80211_RATE_INFO_10_MHZ_WIDTH;
3613 case RATE_INFO_BW_20:
3616 case RATE_INFO_BW_40:
3617 rate_flg = NL80211_RATE_INFO_40_MHZ_WIDTH;
3619 case RATE_INFO_BW_80:
3620 rate_flg = NL80211_RATE_INFO_80_MHZ_WIDTH;
3622 case RATE_INFO_BW_160:
3623 rate_flg = NL80211_RATE_INFO_160_MHZ_WIDTH;
3627 if (rate_flg && nla_put_flag(msg, rate_flg))
3630 if (info->flags & RATE_INFO_FLAGS_MCS) {
3631 if (nla_put_u8(msg, NL80211_RATE_INFO_MCS, info->mcs))
3633 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3634 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3636 } else if (info->flags & RATE_INFO_FLAGS_VHT_MCS) {
3637 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_MCS, info->mcs))
3639 if (nla_put_u8(msg, NL80211_RATE_INFO_VHT_NSS, info->nss))
3641 if (info->flags & RATE_INFO_FLAGS_SHORT_GI &&
3642 nla_put_flag(msg, NL80211_RATE_INFO_SHORT_GI))
3646 nla_nest_end(msg, rate);
3650 static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal,
3659 attr = nla_nest_start(msg, id);
3663 for (i = 0; i < IEEE80211_MAX_CHAINS; i++) {
3664 if (!(mask & BIT(i)))
3667 if (nla_put_u8(msg, i, signal[i]))
3671 nla_nest_end(msg, attr);
3676 static int nl80211_send_station(struct sk_buff *msg, u32 cmd, u32 portid,
3678 struct cfg80211_registered_device *rdev,
3679 struct net_device *dev,
3680 const u8 *mac_addr, struct station_info *sinfo)
3683 struct nlattr *sinfoattr, *bss_param;
3685 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
3689 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
3690 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
3691 nla_put_u32(msg, NL80211_ATTR_GENERATION, sinfo->generation))
3692 goto nla_put_failure;
3694 sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
3696 goto nla_put_failure;
3698 #define PUT_SINFO(attr, memb, type) do { \
3699 if (sinfo->filled & BIT(NL80211_STA_INFO_ ## attr) && \
3700 nla_put_ ## type(msg, NL80211_STA_INFO_ ## attr, \
3702 goto nla_put_failure; \
3705 PUT_SINFO(CONNECTED_TIME, connected_time, u32);
3706 PUT_SINFO(INACTIVE_TIME, inactive_time, u32);
3708 if (sinfo->filled & (BIT(NL80211_STA_INFO_RX_BYTES) |
3709 BIT(NL80211_STA_INFO_RX_BYTES64)) &&
3710 nla_put_u32(msg, NL80211_STA_INFO_RX_BYTES,
3711 (u32)sinfo->rx_bytes))
3712 goto nla_put_failure;
3714 if (sinfo->filled & (BIT(NL80211_STA_INFO_TX_BYTES) |
3715 BIT(NL80211_STA_INFO_TX_BYTES64)) &&
3716 nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
3717 (u32)sinfo->tx_bytes))
3718 goto nla_put_failure;
3720 PUT_SINFO(RX_BYTES64, rx_bytes, u64);
3721 PUT_SINFO(TX_BYTES64, tx_bytes, u64);
3722 PUT_SINFO(LLID, llid, u16);
3723 PUT_SINFO(PLID, plid, u16);
3724 PUT_SINFO(PLINK_STATE, plink_state, u8);
3726 switch (rdev->wiphy.signal_type) {
3727 case CFG80211_SIGNAL_TYPE_MBM:
3728 PUT_SINFO(SIGNAL, signal, u8);
3729 PUT_SINFO(SIGNAL_AVG, signal_avg, u8);
3734 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL)) {
3735 if (!nl80211_put_signal(msg, sinfo->chains,
3736 sinfo->chain_signal,
3737 NL80211_STA_INFO_CHAIN_SIGNAL))
3738 goto nla_put_failure;
3740 if (sinfo->filled & BIT(NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) {
3741 if (!nl80211_put_signal(msg, sinfo->chains,
3742 sinfo->chain_signal_avg,
3743 NL80211_STA_INFO_CHAIN_SIGNAL_AVG))
3744 goto nla_put_failure;
3746 if (sinfo->filled & BIT(NL80211_STA_INFO_TX_BITRATE)) {
3747 if (!nl80211_put_sta_rate(msg, &sinfo->txrate,
3748 NL80211_STA_INFO_TX_BITRATE))
3749 goto nla_put_failure;
3751 if (sinfo->filled & BIT(NL80211_STA_INFO_RX_BITRATE)) {
3752 if (!nl80211_put_sta_rate(msg, &sinfo->rxrate,
3753 NL80211_STA_INFO_RX_BITRATE))
3754 goto nla_put_failure;
3757 PUT_SINFO(RX_PACKETS, rx_packets, u32);
3758 PUT_SINFO(TX_PACKETS, tx_packets, u32);
3759 PUT_SINFO(TX_RETRIES, tx_retries, u32);
3760 PUT_SINFO(TX_FAILED, tx_failed, u32);
3761 PUT_SINFO(EXPECTED_THROUGHPUT, expected_throughput, u32);
3762 PUT_SINFO(BEACON_LOSS, beacon_loss_count, u32);
3763 PUT_SINFO(LOCAL_PM, local_pm, u32);
3764 PUT_SINFO(PEER_PM, peer_pm, u32);
3765 PUT_SINFO(NONPEER_PM, nonpeer_pm, u32);
3767 if (sinfo->filled & BIT(NL80211_STA_INFO_BSS_PARAM)) {
3768 bss_param = nla_nest_start(msg, NL80211_STA_INFO_BSS_PARAM);
3770 goto nla_put_failure;
3772 if (((sinfo->bss_param.flags & BSS_PARAM_FLAGS_CTS_PROT) &&
3773 nla_put_flag(msg, NL80211_STA_BSS_PARAM_CTS_PROT)) ||
3774 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_PREAMBLE) &&
3775 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_PREAMBLE)) ||
3776 ((sinfo->bss_param.flags & BSS_PARAM_FLAGS_SHORT_SLOT_TIME) &&
3777 nla_put_flag(msg, NL80211_STA_BSS_PARAM_SHORT_SLOT_TIME)) ||
3778 nla_put_u8(msg, NL80211_STA_BSS_PARAM_DTIM_PERIOD,
3779 sinfo->bss_param.dtim_period) ||
3780 nla_put_u16(msg, NL80211_STA_BSS_PARAM_BEACON_INTERVAL,
3781 sinfo->bss_param.beacon_interval))
3782 goto nla_put_failure;
3784 nla_nest_end(msg, bss_param);
3786 if ((sinfo->filled & BIT(NL80211_STA_INFO_STA_FLAGS)) &&
3787 nla_put(msg, NL80211_STA_INFO_STA_FLAGS,
3788 sizeof(struct nl80211_sta_flag_update),
3790 goto nla_put_failure;
3792 PUT_SINFO(T_OFFSET, t_offset, u64);
3793 PUT_SINFO(RX_DROP_MISC, rx_dropped_misc, u64);
3794 PUT_SINFO(BEACON_RX, rx_beacon, u64);
3795 PUT_SINFO(BEACON_SIGNAL_AVG, rx_beacon_signal_avg, u8);
3799 if (sinfo->filled & BIT(NL80211_STA_INFO_TID_STATS)) {
3800 struct nlattr *tidsattr;
3803 tidsattr = nla_nest_start(msg, NL80211_STA_INFO_TID_STATS);
3805 goto nla_put_failure;
3807 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
3808 struct cfg80211_tid_stats *tidstats;
3809 struct nlattr *tidattr;
3811 tidstats = &sinfo->pertid[tid];
3813 if (!tidstats->filled)
3816 tidattr = nla_nest_start(msg, tid + 1);
3818 goto nla_put_failure;
3820 #define PUT_TIDVAL(attr, memb, type) do { \
3821 if (tidstats->filled & BIT(NL80211_TID_STATS_ ## attr) && \
3822 nla_put_ ## type(msg, NL80211_TID_STATS_ ## attr, \
3824 goto nla_put_failure; \
3827 PUT_TIDVAL(RX_MSDU, rx_msdu, u64);
3828 PUT_TIDVAL(TX_MSDU, tx_msdu, u64);
3829 PUT_TIDVAL(TX_MSDU_RETRIES, tx_msdu_retries, u64);
3830 PUT_TIDVAL(TX_MSDU_FAILED, tx_msdu_failed, u64);
3833 nla_nest_end(msg, tidattr);
3836 nla_nest_end(msg, tidsattr);
3839 nla_nest_end(msg, sinfoattr);
3841 if (sinfo->assoc_req_ies_len &&
3842 nla_put(msg, NL80211_ATTR_IE, sinfo->assoc_req_ies_len,
3843 sinfo->assoc_req_ies))
3844 goto nla_put_failure;
3846 genlmsg_end(msg, hdr);
3850 genlmsg_cancel(msg, hdr);
3854 static int nl80211_dump_station(struct sk_buff *skb,
3855 struct netlink_callback *cb)
3857 struct station_info sinfo;
3858 struct cfg80211_registered_device *rdev;
3859 struct wireless_dev *wdev;
3860 u8 mac_addr[ETH_ALEN];
3861 int sta_idx = cb->args[2];
3864 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
3868 if (!wdev->netdev) {
3873 if (!rdev->ops->dump_station) {
3879 memset(&sinfo, 0, sizeof(sinfo));
3880 err = rdev_dump_station(rdev, wdev->netdev, sta_idx,
3887 if (nl80211_send_station(skb, NL80211_CMD_NEW_STATION,
3888 NETLINK_CB(cb->skb).portid,
3889 cb->nlh->nlmsg_seq, NLM_F_MULTI,
3890 rdev, wdev->netdev, mac_addr,
3899 cb->args[2] = sta_idx;
3902 nl80211_finish_wdev_dump(rdev);
3907 static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
3909 struct cfg80211_registered_device *rdev = info->user_ptr[0];
3910 struct net_device *dev = info->user_ptr[1];
3911 struct station_info sinfo;
3912 struct sk_buff *msg;
3913 u8 *mac_addr = NULL;
3916 memset(&sinfo, 0, sizeof(sinfo));
3918 if (!info->attrs[NL80211_ATTR_MAC])
3921 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
3923 if (!rdev->ops->get_station)
3926 err = rdev_get_station(rdev, dev, mac_addr, &sinfo);
3930 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
3934 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION,
3935 info->snd_portid, info->snd_seq, 0,
3936 rdev, dev, mac_addr, &sinfo) < 0) {
3941 return genlmsg_reply(msg, info);
3944 int cfg80211_check_station_change(struct wiphy *wiphy,
3945 struct station_parameters *params,
3946 enum cfg80211_station_type statype)
3948 if (params->listen_interval != -1)
3951 !(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3954 /* When you run into this, adjust the code below for the new flag */
3955 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
3958 case CFG80211_STA_MESH_PEER_KERNEL:
3959 case CFG80211_STA_MESH_PEER_USER:
3961 * No ignoring the TDLS flag here -- the userspace mesh
3962 * code doesn't have the bug of including TDLS in the
3965 if (params->sta_flags_mask &
3966 ~(BIT(NL80211_STA_FLAG_AUTHENTICATED) |
3967 BIT(NL80211_STA_FLAG_MFP) |
3968 BIT(NL80211_STA_FLAG_AUTHORIZED)))
3971 case CFG80211_STA_TDLS_PEER_SETUP:
3972 case CFG80211_STA_TDLS_PEER_ACTIVE:
3973 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3975 /* ignore since it can't change */
3976 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
3979 /* disallow mesh-specific things */
3980 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION)
3982 if (params->local_pm)
3984 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
3988 if (statype != CFG80211_STA_TDLS_PEER_SETUP &&
3989 statype != CFG80211_STA_TDLS_PEER_ACTIVE) {
3990 /* TDLS can't be set, ... */
3991 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
3994 * ... but don't bother the driver with it. This works around
3995 * a hostapd/wpa_supplicant issue -- it always includes the
3996 * TLDS_PEER flag in the mask even for AP mode.
3998 params->sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4001 if (statype != CFG80211_STA_TDLS_PEER_SETUP) {
4002 /* reject other things that can't change */
4003 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD)
4005 if (params->sta_modify_mask & STATION_PARAM_APPLY_CAPABILITY)
4007 if (params->supported_rates)
4009 if (params->ext_capab || params->ht_capa || params->vht_capa)
4013 if (statype != CFG80211_STA_AP_CLIENT) {
4019 case CFG80211_STA_AP_MLME_CLIENT:
4020 /* Use this only for authorizing/unauthorizing a station */
4021 if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)))
4024 case CFG80211_STA_AP_CLIENT:
4025 /* accept only the listed bits */
4026 if (params->sta_flags_mask &
4027 ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4028 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4029 BIT(NL80211_STA_FLAG_ASSOCIATED) |
4030 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
4031 BIT(NL80211_STA_FLAG_WME) |
4032 BIT(NL80211_STA_FLAG_MFP)))
4035 /* but authenticated/associated only if driver handles it */
4036 if (!(wiphy->features & NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4037 params->sta_flags_mask &
4038 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4039 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4042 case CFG80211_STA_IBSS:
4043 case CFG80211_STA_AP_STA:
4044 /* reject any changes other than AUTHORIZED */
4045 if (params->sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED))
4048 case CFG80211_STA_TDLS_PEER_SETUP:
4049 /* reject any changes other than AUTHORIZED or WME */
4050 if (params->sta_flags_mask & ~(BIT(NL80211_STA_FLAG_AUTHORIZED) |
4051 BIT(NL80211_STA_FLAG_WME)))
4053 /* force (at least) rates when authorizing */
4054 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED) &&
4055 !params->supported_rates)
4058 case CFG80211_STA_TDLS_PEER_ACTIVE:
4059 /* reject any changes */
4061 case CFG80211_STA_MESH_PEER_KERNEL:
4062 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE)
4065 case CFG80211_STA_MESH_PEER_USER:
4066 if (params->plink_action != NL80211_PLINK_ACTION_NO_ACTION &&
4067 params->plink_action != NL80211_PLINK_ACTION_BLOCK)
4074 EXPORT_SYMBOL(cfg80211_check_station_change);
4077 * Get vlan interface making sure it is running and on the right wiphy.
4079 static struct net_device *get_vlan(struct genl_info *info,
4080 struct cfg80211_registered_device *rdev)
4082 struct nlattr *vlanattr = info->attrs[NL80211_ATTR_STA_VLAN];
4083 struct net_device *v;
4089 v = dev_get_by_index(genl_info_net(info), nla_get_u32(vlanattr));
4091 return ERR_PTR(-ENODEV);
4093 if (!v->ieee80211_ptr || v->ieee80211_ptr->wiphy != &rdev->wiphy) {
4098 if (v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4099 v->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4100 v->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO) {
4105 if (!netif_running(v)) {
4113 return ERR_PTR(ret);
4116 static const struct nla_policy
4117 nl80211_sta_wme_policy[NL80211_STA_WME_MAX + 1] = {
4118 [NL80211_STA_WME_UAPSD_QUEUES] = { .type = NLA_U8 },
4119 [NL80211_STA_WME_MAX_SP] = { .type = NLA_U8 },
4122 static int nl80211_parse_sta_wme(struct genl_info *info,
4123 struct station_parameters *params)
4125 struct nlattr *tb[NL80211_STA_WME_MAX + 1];
4129 /* parse WME attributes if present */
4130 if (!info->attrs[NL80211_ATTR_STA_WME])
4133 nla = info->attrs[NL80211_ATTR_STA_WME];
4134 err = nla_parse_nested(tb, NL80211_STA_WME_MAX, nla,
4135 nl80211_sta_wme_policy);
4139 if (tb[NL80211_STA_WME_UAPSD_QUEUES])
4140 params->uapsd_queues = nla_get_u8(
4141 tb[NL80211_STA_WME_UAPSD_QUEUES]);
4142 if (params->uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
4145 if (tb[NL80211_STA_WME_MAX_SP])
4146 params->max_sp = nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
4148 if (params->max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
4151 params->sta_modify_mask |= STATION_PARAM_APPLY_UAPSD;
4156 static int nl80211_parse_sta_channel_info(struct genl_info *info,
4157 struct station_parameters *params)
4159 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
4160 params->supported_channels =
4161 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4162 params->supported_channels_len =
4163 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
4165 * Need to include at least one (first channel, number of
4166 * channels) tuple for each subband, and must have proper
4167 * tuples for the rest of the data as well.
4169 if (params->supported_channels_len < 2)
4171 if (params->supported_channels_len % 2)
4175 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
4176 params->supported_oper_classes =
4177 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4178 params->supported_oper_classes_len =
4179 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
4181 * The value of the Length field of the Supported Operating
4182 * Classes element is between 2 and 253.
4184 if (params->supported_oper_classes_len < 2 ||
4185 params->supported_oper_classes_len > 253)
4191 static int nl80211_set_station_tdls(struct genl_info *info,
4192 struct station_parameters *params)
4195 /* Dummy STA entry gets updated once the peer capabilities are known */
4196 if (info->attrs[NL80211_ATTR_PEER_AID])
4197 params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4198 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4200 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4201 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4203 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4205 err = nl80211_parse_sta_channel_info(info, params);
4209 return nl80211_parse_sta_wme(info, params);
4212 static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
4214 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4215 struct net_device *dev = info->user_ptr[1];
4216 struct station_parameters params;
4220 memset(¶ms, 0, sizeof(params));
4222 params.listen_interval = -1;
4224 if (!rdev->ops->change_station)
4227 if (info->attrs[NL80211_ATTR_STA_AID])
4230 if (!info->attrs[NL80211_ATTR_MAC])
4233 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4235 if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
4236 params.supported_rates =
4237 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4238 params.supported_rates_len =
4239 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4242 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4244 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4245 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4248 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4250 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4251 params.ext_capab_len =
4252 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4255 if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4258 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4261 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4262 params.plink_action =
4263 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4264 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4268 if (info->attrs[NL80211_ATTR_STA_PLINK_STATE]) {
4269 params.plink_state =
4270 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
4271 if (params.plink_state >= NUM_NL80211_PLINK_STATES)
4273 params.sta_modify_mask |= STATION_PARAM_APPLY_PLINK_STATE;
4276 if (info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]) {
4277 enum nl80211_mesh_power_mode pm = nla_get_u32(
4278 info->attrs[NL80211_ATTR_LOCAL_MESH_POWER_MODE]);
4280 if (pm <= NL80211_MESH_POWER_UNKNOWN ||
4281 pm > NL80211_MESH_POWER_MAX)
4284 params.local_pm = pm;
4287 /* Include parameters for TDLS peer (will check later) */
4288 err = nl80211_set_station_tdls(info, ¶ms);
4292 params.vlan = get_vlan(info, rdev);
4293 if (IS_ERR(params.vlan))
4294 return PTR_ERR(params.vlan);
4296 switch (dev->ieee80211_ptr->iftype) {
4297 case NL80211_IFTYPE_AP:
4298 case NL80211_IFTYPE_AP_VLAN:
4299 case NL80211_IFTYPE_P2P_GO:
4300 case NL80211_IFTYPE_P2P_CLIENT:
4301 case NL80211_IFTYPE_STATION:
4302 case NL80211_IFTYPE_ADHOC:
4303 case NL80211_IFTYPE_MESH_POINT:
4310 /* driver will call cfg80211_check_station_change() */
4311 err = rdev_change_station(rdev, dev, mac_addr, ¶ms);
4315 dev_put(params.vlan);
4320 static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
4322 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4324 struct net_device *dev = info->user_ptr[1];
4325 struct station_parameters params;
4326 u8 *mac_addr = NULL;
4328 memset(¶ms, 0, sizeof(params));
4330 if (!rdev->ops->add_station)
4333 if (!info->attrs[NL80211_ATTR_MAC])
4336 if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
4339 if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
4342 if (!info->attrs[NL80211_ATTR_STA_AID] &&
4343 !info->attrs[NL80211_ATTR_PEER_AID])
4346 mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
4347 params.supported_rates =
4348 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4349 params.supported_rates_len =
4350 nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
4351 params.listen_interval =
4352 nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
4354 if (info->attrs[NL80211_ATTR_PEER_AID])
4355 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
4357 params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
4358 if (!params.aid || params.aid > IEEE80211_MAX_AID)
4361 if (info->attrs[NL80211_ATTR_STA_CAPABILITY]) {
4363 nla_get_u16(info->attrs[NL80211_ATTR_STA_CAPABILITY]);
4364 params.sta_modify_mask |= STATION_PARAM_APPLY_CAPABILITY;
4367 if (info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]) {
4369 nla_data(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4370 params.ext_capab_len =
4371 nla_len(info->attrs[NL80211_ATTR_STA_EXT_CAPABILITY]);
4374 if (info->attrs[NL80211_ATTR_HT_CAPABILITY])
4376 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]);
4378 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY])
4380 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
4382 if (info->attrs[NL80211_ATTR_OPMODE_NOTIF]) {
4383 params.opmode_notif_used = true;
4384 params.opmode_notif =
4385 nla_get_u8(info->attrs[NL80211_ATTR_OPMODE_NOTIF]);
4388 if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) {
4389 params.plink_action =
4390 nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
4391 if (params.plink_action >= NUM_NL80211_PLINK_ACTIONS)
4395 err = nl80211_parse_sta_channel_info(info, ¶ms);
4399 err = nl80211_parse_sta_wme(info, ¶ms);
4403 if (parse_station_flags(info, dev->ieee80211_ptr->iftype, ¶ms))
4406 /* HT/VHT requires QoS, but if we don't have that just ignore HT/VHT
4407 * as userspace might just pass through the capabilities from the IEs
4408 * directly, rather than enforcing this restriction and returning an
4409 * error in this case.
4411 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME))) {
4412 params.ht_capa = NULL;
4413 params.vht_capa = NULL;
4416 /* When you run into this, adjust the code below for the new flag */
4417 BUILD_BUG_ON(NL80211_STA_FLAG_MAX != 7);
4419 switch (dev->ieee80211_ptr->iftype) {
4420 case NL80211_IFTYPE_AP:
4421 case NL80211_IFTYPE_AP_VLAN:
4422 case NL80211_IFTYPE_P2P_GO:
4423 /* ignore WME attributes if iface/sta is not capable */
4424 if (!(rdev->wiphy.flags & WIPHY_FLAG_AP_UAPSD) ||
4425 !(params.sta_flags_set & BIT(NL80211_STA_FLAG_WME)))
4426 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4428 /* TDLS peers cannot be added */
4429 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4430 info->attrs[NL80211_ATTR_PEER_AID])
4432 /* but don't bother the driver with it */
4433 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
4435 /* allow authenticated/associated only if driver handles it */
4436 if (!(rdev->wiphy.features &
4437 NL80211_FEATURE_FULL_AP_CLIENT_STATE) &&
4438 params.sta_flags_mask &
4439 (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
4440 BIT(NL80211_STA_FLAG_ASSOCIATED)))
4443 /* must be last in here for error handling */
4444 params.vlan = get_vlan(info, rdev);
4445 if (IS_ERR(params.vlan))
4446 return PTR_ERR(params.vlan);
4448 case NL80211_IFTYPE_MESH_POINT:
4449 /* ignore uAPSD data */
4450 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4452 /* associated is disallowed */
4453 if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
4455 /* TDLS peers cannot be added */
4456 if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
4457 info->attrs[NL80211_ATTR_PEER_AID])
4460 case NL80211_IFTYPE_STATION:
4461 case NL80211_IFTYPE_P2P_CLIENT:
4462 /* ignore uAPSD data */
4463 params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
4465 /* these are disallowed */
4466 if (params.sta_flags_mask &
4467 (BIT(NL80211_STA_FLAG_ASSOCIATED) |
4468 BIT(NL80211_STA_FLAG_AUTHENTICATED)))
4470 /* Only TDLS peers can be added */
4471 if (!(params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
4473 /* Can only add if TDLS ... */
4474 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS))
4476 /* ... with external setup is supported */
4477 if (!(rdev->wiphy.flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
4480 * Older wpa_supplicant versions always mark the TDLS peer
4481 * as authorized, but it shouldn't yet be.
4483 params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_AUTHORIZED);
4489 /* be aware of params.vlan when changing code here */
4491 err = rdev_add_station(rdev, dev, mac_addr, ¶ms);
4494 dev_put(params.vlan);
4498 static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
4500 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4501 struct net_device *dev = info->user_ptr[1];
4502 struct station_del_parameters params;
4504 memset(¶ms, 0, sizeof(params));
4506 if (info->attrs[NL80211_ATTR_MAC])
4507 params.mac = nla_data(info->attrs[NL80211_ATTR_MAC]);
4509 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4510 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN &&
4511 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
4512 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4515 if (!rdev->ops->del_station)
4518 if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
4520 nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
4521 if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
4522 params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
4525 /* Default to Deauthentication frame */
4526 params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
4529 if (info->attrs[NL80211_ATTR_REASON_CODE]) {
4530 params.reason_code =
4531 nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
4532 if (params.reason_code == 0)
4533 return -EINVAL; /* 0 is reserved */
4535 /* Default to reason code 2 */
4536 params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
4539 return rdev_del_station(rdev, dev, ¶ms);
4542 static int nl80211_send_mpath(struct sk_buff *msg, u32 portid, u32 seq,
4543 int flags, struct net_device *dev,
4544 u8 *dst, u8 *next_hop,
4545 struct mpath_info *pinfo)
4548 struct nlattr *pinfoattr;
4550 hdr = nl80211hdr_put(msg, portid, seq, flags, NL80211_CMD_NEW_MPATH);
4554 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
4555 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, dst) ||
4556 nla_put(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop) ||
4557 nla_put_u32(msg, NL80211_ATTR_GENERATION, pinfo->generation))
4558 goto nla_put_failure;
4560 pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO);
4562 goto nla_put_failure;
4563 if ((pinfo->filled & MPATH_INFO_FRAME_QLEN) &&
4564 nla_put_u32(msg, NL80211_MPATH_INFO_FRAME_QLEN,
4566 goto nla_put_failure;
4567 if (((pinfo->filled & MPATH_INFO_SN) &&
4568 nla_put_u32(msg, NL80211_MPATH_INFO_SN, pinfo->sn)) ||
4569 ((pinfo->filled & MPATH_INFO_METRIC) &&
4570 nla_put_u32(msg, NL80211_MPATH_INFO_METRIC,
4572 ((pinfo->filled & MPATH_INFO_EXPTIME) &&
4573 nla_put_u32(msg, NL80211_MPATH_INFO_EXPTIME,
4575 ((pinfo->filled & MPATH_INFO_FLAGS) &&
4576 nla_put_u8(msg, NL80211_MPATH_INFO_FLAGS,
4578 ((pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) &&
4579 nla_put_u32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT,
4580 pinfo->discovery_timeout)) ||
4581 ((pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) &&
4582 nla_put_u8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES,
4583 pinfo->discovery_retries)))
4584 goto nla_put_failure;
4586 nla_nest_end(msg, pinfoattr);
4588 genlmsg_end(msg, hdr);
4592 genlmsg_cancel(msg, hdr);
4596 static int nl80211_dump_mpath(struct sk_buff *skb,
4597 struct netlink_callback *cb)
4599 struct mpath_info pinfo;
4600 struct cfg80211_registered_device *rdev;
4601 struct wireless_dev *wdev;
4603 u8 next_hop[ETH_ALEN];
4604 int path_idx = cb->args[2];
4607 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4611 if (!rdev->ops->dump_mpath) {
4616 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4622 err = rdev_dump_mpath(rdev, wdev->netdev, path_idx, dst,
4629 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4630 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4631 wdev->netdev, dst, next_hop,
4640 cb->args[2] = path_idx;
4643 nl80211_finish_wdev_dump(rdev);
4647 static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info)
4649 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4651 struct net_device *dev = info->user_ptr[1];
4652 struct mpath_info pinfo;
4653 struct sk_buff *msg;
4655 u8 next_hop[ETH_ALEN];
4657 memset(&pinfo, 0, sizeof(pinfo));
4659 if (!info->attrs[NL80211_ATTR_MAC])
4662 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4664 if (!rdev->ops->get_mpath)
4667 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4670 err = rdev_get_mpath(rdev, dev, dst, next_hop, &pinfo);
4674 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4678 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4679 dev, dst, next_hop, &pinfo) < 0) {
4684 return genlmsg_reply(msg, info);
4687 static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info)
4689 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4690 struct net_device *dev = info->user_ptr[1];
4692 u8 *next_hop = NULL;
4694 if (!info->attrs[NL80211_ATTR_MAC])
4697 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4700 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4701 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4703 if (!rdev->ops->change_mpath)
4706 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4709 return rdev_change_mpath(rdev, dev, dst, next_hop);
4712 static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info)
4714 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4715 struct net_device *dev = info->user_ptr[1];
4717 u8 *next_hop = NULL;
4719 if (!info->attrs[NL80211_ATTR_MAC])
4722 if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP])
4725 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4726 next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]);
4728 if (!rdev->ops->add_mpath)
4731 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4734 return rdev_add_mpath(rdev, dev, dst, next_hop);
4737 static int nl80211_del_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];
4743 if (info->attrs[NL80211_ATTR_MAC])
4744 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4746 if (!rdev->ops->del_mpath)
4749 return rdev_del_mpath(rdev, dev, dst);
4752 static int nl80211_get_mpp(struct sk_buff *skb, struct genl_info *info)
4754 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4756 struct net_device *dev = info->user_ptr[1];
4757 struct mpath_info pinfo;
4758 struct sk_buff *msg;
4762 memset(&pinfo, 0, sizeof(pinfo));
4764 if (!info->attrs[NL80211_ATTR_MAC])
4767 dst = nla_data(info->attrs[NL80211_ATTR_MAC]);
4769 if (!rdev->ops->get_mpp)
4772 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT)
4775 err = rdev_get_mpp(rdev, dev, dst, mpp, &pinfo);
4779 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
4783 if (nl80211_send_mpath(msg, info->snd_portid, info->snd_seq, 0,
4784 dev, dst, mpp, &pinfo) < 0) {
4789 return genlmsg_reply(msg, info);
4792 static int nl80211_dump_mpp(struct sk_buff *skb,
4793 struct netlink_callback *cb)
4795 struct mpath_info pinfo;
4796 struct cfg80211_registered_device *rdev;
4797 struct wireless_dev *wdev;
4800 int path_idx = cb->args[2];
4803 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
4807 if (!rdev->ops->dump_mpp) {
4812 if (wdev->iftype != NL80211_IFTYPE_MESH_POINT) {
4818 err = rdev_dump_mpp(rdev, wdev->netdev, path_idx, dst,
4825 if (nl80211_send_mpath(skb, NETLINK_CB(cb->skb).portid,
4826 cb->nlh->nlmsg_seq, NLM_F_MULTI,
4827 wdev->netdev, dst, mpp,
4835 cb->args[2] = path_idx;
4838 nl80211_finish_wdev_dump(rdev);
4842 static int nl80211_set_bss(struct sk_buff *skb, struct genl_info *info)
4844 struct cfg80211_registered_device *rdev = info->user_ptr[0];
4845 struct net_device *dev = info->user_ptr[1];
4846 struct wireless_dev *wdev = dev->ieee80211_ptr;
4847 struct bss_parameters params;
4850 memset(¶ms, 0, sizeof(params));
4851 /* default to not changing parameters */
4852 params.use_cts_prot = -1;
4853 params.use_short_preamble = -1;
4854 params.use_short_slot_time = -1;
4855 params.ap_isolate = -1;
4856 params.ht_opmode = -1;
4857 params.p2p_ctwindow = -1;
4858 params.p2p_opp_ps = -1;
4860 if (info->attrs[NL80211_ATTR_BSS_CTS_PROT])
4861 params.use_cts_prot =
4862 nla_get_u8(info->attrs[NL80211_ATTR_BSS_CTS_PROT]);
4863 if (info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE])
4864 params.use_short_preamble =
4865 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_PREAMBLE]);
4866 if (info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME])
4867 params.use_short_slot_time =
4868 nla_get_u8(info->attrs[NL80211_ATTR_BSS_SHORT_SLOT_TIME]);
4869 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
4870 params.basic_rates =
4871 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4872 params.basic_rates_len =
4873 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
4875 if (info->attrs[NL80211_ATTR_AP_ISOLATE])
4876 params.ap_isolate = !!nla_get_u8(info->attrs[NL80211_ATTR_AP_ISOLATE]);
4877 if (info->attrs[NL80211_ATTR_BSS_HT_OPMODE])
4879 nla_get_u16(info->attrs[NL80211_ATTR_BSS_HT_OPMODE]);
4881 if (info->attrs[NL80211_ATTR_P2P_CTWINDOW]) {
4882 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4884 params.p2p_ctwindow =
4885 nla_get_s8(info->attrs[NL80211_ATTR_P2P_CTWINDOW]);
4886 if (params.p2p_ctwindow < 0)
4888 if (params.p2p_ctwindow != 0 &&
4889 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_CTWIN))
4893 if (info->attrs[NL80211_ATTR_P2P_OPPPS]) {
4896 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4898 tmp = nla_get_u8(info->attrs[NL80211_ATTR_P2P_OPPPS]);
4901 params.p2p_opp_ps = tmp;
4902 if (params.p2p_opp_ps &&
4903 !(rdev->wiphy.features & NL80211_FEATURE_P2P_GO_OPPPS))
4907 if (!rdev->ops->change_bss)
4910 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
4911 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
4915 err = rdev_change_bss(rdev, dev, ¶ms);
4921 static const struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
4922 [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
4923 [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
4924 [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
4925 [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
4926 [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
4927 [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
4928 [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
4931 static int parse_reg_rule(struct nlattr *tb[],
4932 struct ieee80211_reg_rule *reg_rule)
4934 struct ieee80211_freq_range *freq_range = ®_rule->freq_range;
4935 struct ieee80211_power_rule *power_rule = ®_rule->power_rule;
4937 if (!tb[NL80211_ATTR_REG_RULE_FLAGS])
4939 if (!tb[NL80211_ATTR_FREQ_RANGE_START])
4941 if (!tb[NL80211_ATTR_FREQ_RANGE_END])
4943 if (!tb[NL80211_ATTR_FREQ_RANGE_MAX_BW])
4945 if (!tb[NL80211_ATTR_POWER_RULE_MAX_EIRP])
4948 reg_rule->flags = nla_get_u32(tb[NL80211_ATTR_REG_RULE_FLAGS]);
4950 freq_range->start_freq_khz =
4951 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_START]);
4952 freq_range->end_freq_khz =
4953 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_END]);
4954 freq_range->max_bandwidth_khz =
4955 nla_get_u32(tb[NL80211_ATTR_FREQ_RANGE_MAX_BW]);
4957 power_rule->max_eirp =
4958 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_EIRP]);
4960 if (tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN])
4961 power_rule->max_antenna_gain =
4962 nla_get_u32(tb[NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN]);
4964 if (tb[NL80211_ATTR_DFS_CAC_TIME])
4965 reg_rule->dfs_cac_ms =
4966 nla_get_u32(tb[NL80211_ATTR_DFS_CAC_TIME]);
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 static int nl80211_set_reg(struct sk_buff *skb, struct genl_info *info)
5604 struct nlattr *tb[NL80211_REG_RULE_ATTR_MAX + 1];
5605 struct nlattr *nl_reg_rule;
5607 int rem_reg_rules, r;
5608 u32 num_rules = 0, rule_idx = 0, size_of_regd;
5609 enum nl80211_dfs_regions dfs_region = NL80211_DFS_UNSET;
5610 struct ieee80211_regdomain *rd;
5612 if (!info->attrs[NL80211_ATTR_REG_ALPHA2])
5615 if (!info->attrs[NL80211_ATTR_REG_RULES])
5618 alpha2 = nla_data(info->attrs[NL80211_ATTR_REG_ALPHA2]);
5620 if (info->attrs[NL80211_ATTR_DFS_REGION])
5621 dfs_region = nla_get_u8(info->attrs[NL80211_ATTR_DFS_REGION]);
5623 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5626 if (num_rules > NL80211_MAX_SUPP_REG_RULES)
5630 if (!reg_is_valid_request(alpha2))
5633 size_of_regd = sizeof(struct ieee80211_regdomain) +
5634 num_rules * sizeof(struct ieee80211_reg_rule);
5636 rd = kzalloc(size_of_regd, GFP_KERNEL);
5640 rd->n_reg_rules = num_rules;
5641 rd->alpha2[0] = alpha2[0];
5642 rd->alpha2[1] = alpha2[1];
5645 * Disable DFS master mode if the DFS region was
5646 * not supported or known on this kernel.
5648 if (reg_supported_dfs_region(dfs_region))
5649 rd->dfs_region = dfs_region;
5651 nla_for_each_nested(nl_reg_rule, info->attrs[NL80211_ATTR_REG_RULES],
5653 r = nla_parse(tb, NL80211_REG_RULE_ATTR_MAX,
5654 nla_data(nl_reg_rule), nla_len(nl_reg_rule),
5658 r = parse_reg_rule(tb, &rd->reg_rules[rule_idx]);
5664 if (rule_idx > NL80211_MAX_SUPP_REG_RULES) {
5670 r = set_regdom(rd, REGD_SOURCE_CRDA);
5671 /* set_regdom took ownership */
5679 static int validate_scan_freqs(struct nlattr *freqs)
5681 struct nlattr *attr1, *attr2;
5682 int n_channels = 0, tmp1, tmp2;
5684 nla_for_each_nested(attr1, freqs, tmp1) {
5687 * Some hardware has a limited channel list for
5688 * scanning, and it is pretty much nonsensical
5689 * to scan for a channel twice, so disallow that
5690 * and don't require drivers to check that the
5691 * channel list they get isn't longer than what
5692 * they can scan, as long as they can scan all
5693 * the channels they registered at once.
5695 nla_for_each_nested(attr2, freqs, tmp2)
5696 if (attr1 != attr2 &&
5697 nla_get_u32(attr1) == nla_get_u32(attr2))
5704 static int nl80211_parse_random_mac(struct nlattr **attrs,
5705 u8 *mac_addr, u8 *mac_addr_mask)
5709 if (!attrs[NL80211_ATTR_MAC] && !attrs[NL80211_ATTR_MAC_MASK]) {
5710 eth_zero_addr(mac_addr);
5711 eth_zero_addr(mac_addr_mask);
5713 mac_addr_mask[0] = 0x3;
5718 /* need both or none */
5719 if (!attrs[NL80211_ATTR_MAC] || !attrs[NL80211_ATTR_MAC_MASK])
5722 memcpy(mac_addr, nla_data(attrs[NL80211_ATTR_MAC]), ETH_ALEN);
5723 memcpy(mac_addr_mask, nla_data(attrs[NL80211_ATTR_MAC_MASK]), ETH_ALEN);
5725 /* don't allow or configure an mcast address */
5726 if (!is_multicast_ether_addr(mac_addr_mask) ||
5727 is_multicast_ether_addr(mac_addr))
5731 * allow users to pass a MAC address that has bits set outside
5732 * of the mask, but don't bother drivers with having to deal
5735 for (i = 0; i < ETH_ALEN; i++)
5736 mac_addr[i] &= mac_addr_mask[i];
5741 static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
5743 struct cfg80211_registered_device *rdev = info->user_ptr[0];
5744 struct wireless_dev *wdev = info->user_ptr[1];
5745 struct cfg80211_scan_request *request;
5746 struct nlattr *attr;
5747 struct wiphy *wiphy;
5748 int err, tmp, n_ssids = 0, n_channels, i;
5751 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
5754 wiphy = &rdev->wiphy;
5756 if (!rdev->ops->scan)
5759 if (rdev->scan_req || rdev->scan_msg) {
5764 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5765 n_channels = validate_scan_freqs(
5766 info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5772 n_channels = ieee80211_get_num_supported_channels(wiphy);
5775 if (info->attrs[NL80211_ATTR_SCAN_SSIDS])
5776 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp)
5779 if (n_ssids > wiphy->max_scan_ssids) {
5784 if (info->attrs[NL80211_ATTR_IE])
5785 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5789 if (ie_len > wiphy->max_scan_ie_len) {
5794 request = kzalloc(sizeof(*request)
5795 + sizeof(*request->ssids) * n_ssids
5796 + sizeof(*request->channels) * n_channels
5797 + ie_len, GFP_KERNEL);
5804 request->ssids = (void *)&request->channels[n_channels];
5805 request->n_ssids = n_ssids;
5808 request->ie = (void *)(request->ssids + n_ssids);
5810 request->ie = (void *)(request->channels + n_channels);
5814 if (info->attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5815 /* user specified, bail out if channel not found */
5816 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_FREQUENCIES], tmp) {
5817 struct ieee80211_channel *chan;
5819 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
5826 /* ignore disabled channels */
5827 if (chan->flags & IEEE80211_CHAN_DISABLED)
5830 request->channels[i] = chan;
5834 enum ieee80211_band band;
5837 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
5839 if (!wiphy->bands[band])
5841 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
5842 struct ieee80211_channel *chan;
5844 chan = &wiphy->bands[band]->channels[j];
5846 if (chan->flags & IEEE80211_CHAN_DISABLED)
5849 request->channels[i] = chan;
5860 request->n_channels = i;
5864 nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) {
5865 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
5869 request->ssids[i].ssid_len = nla_len(attr);
5870 memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr));
5875 if (info->attrs[NL80211_ATTR_IE]) {
5876 request->ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
5877 memcpy((void *)request->ie,
5878 nla_data(info->attrs[NL80211_ATTR_IE]),
5882 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
5883 if (wiphy->bands[i])
5885 (1 << wiphy->bands[i]->n_bitrates) - 1;
5887 if (info->attrs[NL80211_ATTR_SCAN_SUPP_RATES]) {
5888 nla_for_each_nested(attr,
5889 info->attrs[NL80211_ATTR_SCAN_SUPP_RATES],
5891 enum ieee80211_band band = nla_type(attr);
5893 if (band < 0 || band >= IEEE80211_NUM_BANDS) {
5898 if (!wiphy->bands[band])
5901 err = ieee80211_get_ratemask(wiphy->bands[band],
5904 &request->rates[band]);
5910 if (info->attrs[NL80211_ATTR_SCAN_FLAGS]) {
5911 request->flags = nla_get_u32(
5912 info->attrs[NL80211_ATTR_SCAN_FLAGS]);
5913 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
5914 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
5919 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
5920 if (!(wiphy->features &
5921 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR)) {
5926 if (wdev->current_bss) {
5931 err = nl80211_parse_random_mac(info->attrs,
5933 request->mac_addr_mask);
5940 nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
5942 request->wdev = wdev;
5943 request->wiphy = &rdev->wiphy;
5944 request->scan_start = jiffies;
5946 rdev->scan_req = request;
5947 err = rdev_scan(rdev, request);
5950 nl80211_send_scan_start(rdev, wdev);
5952 dev_hold(wdev->netdev);
5955 rdev->scan_req = NULL;
5963 static struct cfg80211_sched_scan_request *
5964 nl80211_parse_sched_scan(struct wiphy *wiphy, struct wireless_dev *wdev,
5965 struct nlattr **attrs)
5967 struct cfg80211_sched_scan_request *request;
5968 struct nlattr *attr;
5969 int err, tmp, n_ssids = 0, n_match_sets = 0, n_channels, i;
5971 enum ieee80211_band band;
5973 struct nlattr *tb[NL80211_SCHED_SCAN_MATCH_ATTR_MAX + 1];
5974 s32 default_match_rssi = NL80211_SCAN_RSSI_THOLD_OFF;
5976 if (!is_valid_ie_attr(attrs[NL80211_ATTR_IE]))
5977 return ERR_PTR(-EINVAL);
5979 if (!attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL])
5980 return ERR_PTR(-EINVAL);
5982 interval = nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_INTERVAL]);
5984 return ERR_PTR(-EINVAL);
5986 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
5987 n_channels = validate_scan_freqs(
5988 attrs[NL80211_ATTR_SCAN_FREQUENCIES]);
5990 return ERR_PTR(-EINVAL);
5992 n_channels = ieee80211_get_num_supported_channels(wiphy);
5995 if (attrs[NL80211_ATTR_SCAN_SSIDS])
5996 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6000 if (n_ssids > wiphy->max_sched_scan_ssids)
6001 return ERR_PTR(-EINVAL);
6004 * First, count the number of 'real' matchsets. Due to an issue with
6005 * the old implementation, matchsets containing only the RSSI attribute
6006 * (NL80211_SCHED_SCAN_MATCH_ATTR_RSSI) are considered as the 'default'
6007 * RSSI for all matchsets, rather than their own matchset for reporting
6008 * all APs with a strong RSSI. This is needed to be compatible with
6009 * older userspace that treated a matchset with only the RSSI as the
6010 * global RSSI for all other matchsets - if there are other matchsets.
6012 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6013 nla_for_each_nested(attr,
6014 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6016 struct nlattr *rssi;
6018 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6019 nla_data(attr), nla_len(attr),
6020 nl80211_match_policy);
6022 return ERR_PTR(err);
6023 /* add other standalone attributes here */
6024 if (tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID]) {
6028 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6030 default_match_rssi = nla_get_s32(rssi);
6034 /* However, if there's no other matchset, add the RSSI one */
6035 if (!n_match_sets && default_match_rssi != NL80211_SCAN_RSSI_THOLD_OFF)
6038 if (n_match_sets > wiphy->max_match_sets)
6039 return ERR_PTR(-EINVAL);
6041 if (attrs[NL80211_ATTR_IE])
6042 ie_len = nla_len(attrs[NL80211_ATTR_IE]);
6046 if (ie_len > wiphy->max_sched_scan_ie_len)
6047 return ERR_PTR(-EINVAL);
6049 request = kzalloc(sizeof(*request)
6050 + sizeof(*request->ssids) * n_ssids
6051 + sizeof(*request->match_sets) * n_match_sets
6052 + sizeof(*request->channels) * n_channels
6053 + ie_len, GFP_KERNEL);
6055 return ERR_PTR(-ENOMEM);
6058 request->ssids = (void *)&request->channels[n_channels];
6059 request->n_ssids = n_ssids;
6062 request->ie = (void *)(request->ssids + n_ssids);
6064 request->ie = (void *)(request->channels + n_channels);
6069 request->match_sets = (void *)(request->ie + ie_len);
6071 request->match_sets =
6072 (void *)(request->ssids + n_ssids);
6074 request->match_sets =
6075 (void *)(request->channels + n_channels);
6077 request->n_match_sets = n_match_sets;
6080 if (attrs[NL80211_ATTR_SCAN_FREQUENCIES]) {
6081 /* user specified, bail out if channel not found */
6082 nla_for_each_nested(attr,
6083 attrs[NL80211_ATTR_SCAN_FREQUENCIES],
6085 struct ieee80211_channel *chan;
6087 chan = ieee80211_get_channel(wiphy, nla_get_u32(attr));
6094 /* ignore disabled channels */
6095 if (chan->flags & IEEE80211_CHAN_DISABLED)
6098 request->channels[i] = chan;
6103 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
6105 if (!wiphy->bands[band])
6107 for (j = 0; j < wiphy->bands[band]->n_channels; j++) {
6108 struct ieee80211_channel *chan;
6110 chan = &wiphy->bands[band]->channels[j];
6112 if (chan->flags & IEEE80211_CHAN_DISABLED)
6115 request->channels[i] = chan;
6126 request->n_channels = i;
6130 nla_for_each_nested(attr, attrs[NL80211_ATTR_SCAN_SSIDS],
6132 if (nla_len(attr) > IEEE80211_MAX_SSID_LEN) {
6136 request->ssids[i].ssid_len = nla_len(attr);
6137 memcpy(request->ssids[i].ssid, nla_data(attr),
6144 if (attrs[NL80211_ATTR_SCHED_SCAN_MATCH]) {
6145 nla_for_each_nested(attr,
6146 attrs[NL80211_ATTR_SCHED_SCAN_MATCH],
6148 struct nlattr *ssid, *rssi;
6150 err = nla_parse(tb, NL80211_SCHED_SCAN_MATCH_ATTR_MAX,
6151 nla_data(attr), nla_len(attr),
6152 nl80211_match_policy);
6155 ssid = tb[NL80211_SCHED_SCAN_MATCH_ATTR_SSID];
6157 if (WARN_ON(i >= n_match_sets)) {
6158 /* this indicates a programming error,
6159 * the loop above should have verified
6166 if (nla_len(ssid) > IEEE80211_MAX_SSID_LEN) {
6170 memcpy(request->match_sets[i].ssid.ssid,
6171 nla_data(ssid), nla_len(ssid));
6172 request->match_sets[i].ssid.ssid_len =
6174 /* special attribute - old implemenation w/a */
6175 request->match_sets[i].rssi_thold =
6177 rssi = tb[NL80211_SCHED_SCAN_MATCH_ATTR_RSSI];
6179 request->match_sets[i].rssi_thold =
6185 /* there was no other matchset, so the RSSI one is alone */
6186 if (i == 0 && n_match_sets)
6187 request->match_sets[0].rssi_thold = default_match_rssi;
6189 request->min_rssi_thold = INT_MAX;
6190 for (i = 0; i < n_match_sets; i++)
6191 request->min_rssi_thold =
6192 min(request->match_sets[i].rssi_thold,
6193 request->min_rssi_thold);
6195 request->min_rssi_thold = NL80211_SCAN_RSSI_THOLD_OFF;
6199 request->ie_len = ie_len;
6200 memcpy((void *)request->ie,
6201 nla_data(attrs[NL80211_ATTR_IE]),
6205 if (attrs[NL80211_ATTR_SCAN_FLAGS]) {
6206 request->flags = nla_get_u32(
6207 attrs[NL80211_ATTR_SCAN_FLAGS]);
6208 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
6209 !(wiphy->features & NL80211_FEATURE_LOW_PRIORITY_SCAN)) {
6214 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
6215 u32 flg = NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR;
6217 if (!wdev) /* must be net-detect */
6218 flg = NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
6220 if (!(wiphy->features & flg)) {
6225 if (wdev && wdev->current_bss) {
6230 err = nl80211_parse_random_mac(attrs, request->mac_addr,
6231 request->mac_addr_mask);
6237 if (attrs[NL80211_ATTR_SCHED_SCAN_DELAY])
6239 nla_get_u32(attrs[NL80211_ATTR_SCHED_SCAN_DELAY]);
6241 request->interval = interval;
6242 request->scan_start = jiffies;
6248 return ERR_PTR(err);
6251 static int nl80211_start_sched_scan(struct sk_buff *skb,
6252 struct genl_info *info)
6254 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6255 struct net_device *dev = info->user_ptr[1];
6256 struct wireless_dev *wdev = dev->ieee80211_ptr;
6257 struct cfg80211_sched_scan_request *sched_scan_req;
6260 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6261 !rdev->ops->sched_scan_start)
6264 if (rdev->sched_scan_req)
6265 return -EINPROGRESS;
6267 sched_scan_req = nl80211_parse_sched_scan(&rdev->wiphy, wdev,
6270 err = PTR_ERR_OR_ZERO(sched_scan_req);
6274 err = rdev_sched_scan_start(rdev, dev, sched_scan_req);
6278 sched_scan_req->dev = dev;
6279 sched_scan_req->wiphy = &rdev->wiphy;
6281 if (info->attrs[NL80211_ATTR_SOCKET_OWNER])
6282 sched_scan_req->owner_nlportid = info->snd_portid;
6284 rcu_assign_pointer(rdev->sched_scan_req, sched_scan_req);
6286 nl80211_send_sched_scan(rdev, dev,
6287 NL80211_CMD_START_SCHED_SCAN);
6291 kfree(sched_scan_req);
6296 static int nl80211_stop_sched_scan(struct sk_buff *skb,
6297 struct genl_info *info)
6299 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6301 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN) ||
6302 !rdev->ops->sched_scan_stop)
6305 return __cfg80211_stop_sched_scan(rdev, false);
6308 static int nl80211_start_radar_detection(struct sk_buff *skb,
6309 struct genl_info *info)
6311 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6312 struct net_device *dev = info->user_ptr[1];
6313 struct wireless_dev *wdev = dev->ieee80211_ptr;
6314 struct cfg80211_chan_def chandef;
6315 enum nl80211_dfs_regions dfs_region;
6316 unsigned int cac_time_ms;
6319 dfs_region = reg_get_dfs_region(wdev->wiphy);
6320 if (dfs_region == NL80211_DFS_UNSET)
6323 err = nl80211_parse_chandef(rdev, info, &chandef);
6327 if (netif_carrier_ok(dev))
6330 if (wdev->cac_started)
6333 err = cfg80211_chandef_dfs_required(wdev->wiphy, &chandef,
6341 if (!cfg80211_chandef_dfs_usable(wdev->wiphy, &chandef))
6344 if (!rdev->ops->start_radar_detection)
6347 cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
6348 if (WARN_ON(!cac_time_ms))
6349 cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
6351 err = rdev->ops->start_radar_detection(&rdev->wiphy, dev, &chandef,
6354 wdev->chandef = chandef;
6355 wdev->cac_started = true;
6356 wdev->cac_start_time = jiffies;
6357 wdev->cac_time_ms = cac_time_ms;
6362 static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
6364 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6365 struct net_device *dev = info->user_ptr[1];
6366 struct wireless_dev *wdev = dev->ieee80211_ptr;
6367 struct cfg80211_csa_settings params;
6368 /* csa_attrs is defined static to avoid waste of stack size - this
6369 * function is called under RTNL lock, so this should not be a problem.
6371 static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
6373 bool need_new_beacon = false;
6377 if (!rdev->ops->channel_switch ||
6378 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
6381 switch (dev->ieee80211_ptr->iftype) {
6382 case NL80211_IFTYPE_AP:
6383 case NL80211_IFTYPE_P2P_GO:
6384 need_new_beacon = true;
6386 /* useless if AP is not running */
6387 if (!wdev->beacon_interval)
6390 case NL80211_IFTYPE_ADHOC:
6391 if (!wdev->ssid_len)
6394 case NL80211_IFTYPE_MESH_POINT:
6395 if (!wdev->mesh_id_len)
6402 memset(¶ms, 0, sizeof(params));
6404 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
6405 !info->attrs[NL80211_ATTR_CH_SWITCH_COUNT])
6408 /* only important for AP, IBSS and mesh create IEs internally */
6409 if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
6412 /* Even though the attribute is u32, the specification says
6413 * u8, so let's make sure we don't overflow.
6415 cs_count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
6419 params.count = cs_count;
6421 if (!need_new_beacon)
6424 err = nl80211_parse_beacon(info->attrs, ¶ms.beacon_after);
6428 err = nla_parse_nested(csa_attrs, NL80211_ATTR_MAX,
6429 info->attrs[NL80211_ATTR_CSA_IES],
6434 err = nl80211_parse_beacon(csa_attrs, ¶ms.beacon_csa);
6438 if (!csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON])
6441 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6442 if (!len || (len % sizeof(u16)))
6445 params.n_counter_offsets_beacon = len / sizeof(u16);
6446 if (rdev->wiphy.max_num_csa_counters &&
6447 (params.n_counter_offsets_beacon >
6448 rdev->wiphy.max_num_csa_counters))
6451 params.counter_offsets_beacon =
6452 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_BEACON]);
6454 /* sanity checks - counters should fit and be the same */
6455 for (i = 0; i < params.n_counter_offsets_beacon; i++) {
6456 u16 offset = params.counter_offsets_beacon[i];
6458 if (offset >= params.beacon_csa.tail_len)
6461 if (params.beacon_csa.tail[offset] != params.count)
6465 if (csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]) {
6466 len = nla_len(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6467 if (!len || (len % sizeof(u16)))
6470 params.n_counter_offsets_presp = len / sizeof(u16);
6471 if (rdev->wiphy.max_num_csa_counters &&
6472 (params.n_counter_offsets_beacon >
6473 rdev->wiphy.max_num_csa_counters))
6476 params.counter_offsets_presp =
6477 nla_data(csa_attrs[NL80211_ATTR_CSA_C_OFF_PRESP]);
6479 /* sanity checks - counters should fit and be the same */
6480 for (i = 0; i < params.n_counter_offsets_presp; i++) {
6481 u16 offset = params.counter_offsets_presp[i];
6483 if (offset >= params.beacon_csa.probe_resp_len)
6486 if (params.beacon_csa.probe_resp[offset] !=
6493 err = nl80211_parse_chandef(rdev, info, ¶ms.chandef);
6497 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, ¶ms.chandef,
6501 err = cfg80211_chandef_dfs_required(wdev->wiphy,
6508 params.radar_required = true;
6510 if (info->attrs[NL80211_ATTR_CH_SWITCH_BLOCK_TX])
6511 params.block_tx = true;
6514 err = rdev_channel_switch(rdev, dev, ¶ms);
6520 static int nl80211_send_bss(struct sk_buff *msg, struct netlink_callback *cb,
6522 struct cfg80211_registered_device *rdev,
6523 struct wireless_dev *wdev,
6524 struct cfg80211_internal_bss *intbss)
6526 struct cfg80211_bss *res = &intbss->pub;
6527 const struct cfg80211_bss_ies *ies;
6531 ASSERT_WDEV_LOCK(wdev);
6533 hdr = nl80211hdr_put(msg, NETLINK_CB(cb->skb).portid, seq, flags,
6534 NL80211_CMD_NEW_SCAN_RESULTS);
6538 genl_dump_check_consistent(cb, hdr, &nl80211_fam);
6540 if (nla_put_u32(msg, NL80211_ATTR_GENERATION, rdev->bss_generation))
6541 goto nla_put_failure;
6543 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex))
6544 goto nla_put_failure;
6545 if (nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
6546 goto nla_put_failure;
6548 bss = nla_nest_start(msg, NL80211_ATTR_BSS);
6550 goto nla_put_failure;
6551 if ((!is_zero_ether_addr(res->bssid) &&
6552 nla_put(msg, NL80211_BSS_BSSID, ETH_ALEN, res->bssid)))
6553 goto nla_put_failure;
6556 /* indicate whether we have probe response data or not */
6557 if (rcu_access_pointer(res->proberesp_ies) &&
6558 nla_put_flag(msg, NL80211_BSS_PRESP_DATA))
6559 goto fail_unlock_rcu;
6561 /* this pointer prefers to be pointed to probe response data
6562 * but is always valid
6564 ies = rcu_dereference(res->ies);
6566 if (nla_put_u64(msg, NL80211_BSS_TSF, ies->tsf))
6567 goto fail_unlock_rcu;
6568 if (ies->len && nla_put(msg, NL80211_BSS_INFORMATION_ELEMENTS,
6569 ies->len, ies->data))
6570 goto fail_unlock_rcu;
6573 /* and this pointer is always (unless driver didn't know) beacon data */
6574 ies = rcu_dereference(res->beacon_ies);
6575 if (ies && ies->from_beacon) {
6576 if (nla_put_u64(msg, NL80211_BSS_BEACON_TSF, ies->tsf))
6577 goto fail_unlock_rcu;
6578 if (ies->len && nla_put(msg, NL80211_BSS_BEACON_IES,
6579 ies->len, ies->data))
6580 goto fail_unlock_rcu;
6584 if (res->beacon_interval &&
6585 nla_put_u16(msg, NL80211_BSS_BEACON_INTERVAL, res->beacon_interval))
6586 goto nla_put_failure;
6587 if (nla_put_u16(msg, NL80211_BSS_CAPABILITY, res->capability) ||
6588 nla_put_u32(msg, NL80211_BSS_FREQUENCY, res->channel->center_freq) ||
6589 nla_put_u32(msg, NL80211_BSS_CHAN_WIDTH, res->scan_width) ||
6590 nla_put_u32(msg, NL80211_BSS_SEEN_MS_AGO,
6591 jiffies_to_msecs(jiffies - intbss->ts)))
6592 goto nla_put_failure;
6594 switch (rdev->wiphy.signal_type) {
6595 case CFG80211_SIGNAL_TYPE_MBM:
6596 if (nla_put_u32(msg, NL80211_BSS_SIGNAL_MBM, res->signal))
6597 goto nla_put_failure;
6599 case CFG80211_SIGNAL_TYPE_UNSPEC:
6600 if (nla_put_u8(msg, NL80211_BSS_SIGNAL_UNSPEC, res->signal))
6601 goto nla_put_failure;
6607 switch (wdev->iftype) {
6608 case NL80211_IFTYPE_P2P_CLIENT:
6609 case NL80211_IFTYPE_STATION:
6610 if (intbss == wdev->current_bss &&
6611 nla_put_u32(msg, NL80211_BSS_STATUS,
6612 NL80211_BSS_STATUS_ASSOCIATED))
6613 goto nla_put_failure;
6615 case NL80211_IFTYPE_ADHOC:
6616 if (intbss == wdev->current_bss &&
6617 nla_put_u32(msg, NL80211_BSS_STATUS,
6618 NL80211_BSS_STATUS_IBSS_JOINED))
6619 goto nla_put_failure;
6625 nla_nest_end(msg, bss);
6627 genlmsg_end(msg, hdr);
6633 genlmsg_cancel(msg, hdr);
6637 static int nl80211_dump_scan(struct sk_buff *skb, struct netlink_callback *cb)
6639 struct cfg80211_registered_device *rdev;
6640 struct cfg80211_internal_bss *scan;
6641 struct wireless_dev *wdev;
6642 int start = cb->args[2], idx = 0;
6645 err = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6650 spin_lock_bh(&rdev->bss_lock);
6651 cfg80211_bss_expire(rdev);
6653 cb->seq = rdev->bss_generation;
6655 list_for_each_entry(scan, &rdev->bss_list, list) {
6658 if (nl80211_send_bss(skb, cb,
6659 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6660 rdev, wdev, scan) < 0) {
6666 spin_unlock_bh(&rdev->bss_lock);
6670 nl80211_finish_wdev_dump(rdev);
6675 static int nl80211_send_survey(struct sk_buff *msg, u32 portid, u32 seq,
6676 int flags, struct net_device *dev,
6677 bool allow_radio_stats,
6678 struct survey_info *survey)
6681 struct nlattr *infoattr;
6683 /* skip radio stats if userspace didn't request them */
6684 if (!survey->channel && !allow_radio_stats)
6687 hdr = nl80211hdr_put(msg, portid, seq, flags,
6688 NL80211_CMD_NEW_SURVEY_RESULTS);
6692 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
6693 goto nla_put_failure;
6695 infoattr = nla_nest_start(msg, NL80211_ATTR_SURVEY_INFO);
6697 goto nla_put_failure;
6699 if (survey->channel &&
6700 nla_put_u32(msg, NL80211_SURVEY_INFO_FREQUENCY,
6701 survey->channel->center_freq))
6702 goto nla_put_failure;
6704 if ((survey->filled & SURVEY_INFO_NOISE_DBM) &&
6705 nla_put_u8(msg, NL80211_SURVEY_INFO_NOISE, survey->noise))
6706 goto nla_put_failure;
6707 if ((survey->filled & SURVEY_INFO_IN_USE) &&
6708 nla_put_flag(msg, NL80211_SURVEY_INFO_IN_USE))
6709 goto nla_put_failure;
6710 if ((survey->filled & SURVEY_INFO_TIME) &&
6711 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME,
6713 goto nla_put_failure;
6714 if ((survey->filled & SURVEY_INFO_TIME_BUSY) &&
6715 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_BUSY,
6717 goto nla_put_failure;
6718 if ((survey->filled & SURVEY_INFO_TIME_EXT_BUSY) &&
6719 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_EXT_BUSY,
6720 survey->time_ext_busy))
6721 goto nla_put_failure;
6722 if ((survey->filled & SURVEY_INFO_TIME_RX) &&
6723 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_RX,
6725 goto nla_put_failure;
6726 if ((survey->filled & SURVEY_INFO_TIME_TX) &&
6727 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_TX,
6729 goto nla_put_failure;
6730 if ((survey->filled & SURVEY_INFO_TIME_SCAN) &&
6731 nla_put_u64(msg, NL80211_SURVEY_INFO_TIME_SCAN,
6733 goto nla_put_failure;
6735 nla_nest_end(msg, infoattr);
6737 genlmsg_end(msg, hdr);
6741 genlmsg_cancel(msg, hdr);
6745 static int nl80211_dump_survey(struct sk_buff *skb, struct netlink_callback *cb)
6747 struct survey_info survey;
6748 struct cfg80211_registered_device *rdev;
6749 struct wireless_dev *wdev;
6750 int survey_idx = cb->args[2];
6754 res = nl80211_prepare_wdev_dump(skb, cb, &rdev, &wdev);
6758 /* prepare_wdev_dump parsed the attributes */
6759 radio_stats = nl80211_fam.attrbuf[NL80211_ATTR_SURVEY_RADIO_STATS];
6761 if (!wdev->netdev) {
6766 if (!rdev->ops->dump_survey) {
6772 res = rdev_dump_survey(rdev, wdev->netdev, survey_idx, &survey);
6778 /* don't send disabled channels, but do send non-channel data */
6779 if (survey.channel &&
6780 survey.channel->flags & IEEE80211_CHAN_DISABLED) {
6785 if (nl80211_send_survey(skb,
6786 NETLINK_CB(cb->skb).portid,
6787 cb->nlh->nlmsg_seq, NLM_F_MULTI,
6788 wdev->netdev, radio_stats, &survey) < 0)
6794 cb->args[2] = survey_idx;
6797 nl80211_finish_wdev_dump(rdev);
6801 static bool nl80211_valid_wpa_versions(u32 wpa_versions)
6803 return !(wpa_versions & ~(NL80211_WPA_VERSION_1 |
6804 NL80211_WPA_VERSION_2));
6807 static int nl80211_authenticate(struct sk_buff *skb, struct genl_info *info)
6809 struct cfg80211_registered_device *rdev = info->user_ptr[0];
6810 struct net_device *dev = info->user_ptr[1];
6811 struct ieee80211_channel *chan;
6812 const u8 *bssid, *ssid, *ie = NULL, *sae_data = NULL;
6813 int err, ssid_len, ie_len = 0, sae_data_len = 0;
6814 enum nl80211_auth_type auth_type;
6815 struct key_parse key;
6816 bool local_state_change;
6818 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
6821 if (!info->attrs[NL80211_ATTR_MAC])
6824 if (!info->attrs[NL80211_ATTR_AUTH_TYPE])
6827 if (!info->attrs[NL80211_ATTR_SSID])
6830 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
6833 err = nl80211_parse_key(info, &key);
6838 if (key.type != -1 && key.type != NL80211_KEYTYPE_GROUP)
6840 if (!key.p.key || !key.p.key_len)
6842 if ((key.p.cipher != WLAN_CIPHER_SUITE_WEP40 ||
6843 key.p.key_len != WLAN_KEY_LEN_WEP40) &&
6844 (key.p.cipher != WLAN_CIPHER_SUITE_WEP104 ||
6845 key.p.key_len != WLAN_KEY_LEN_WEP104))
6857 for (i = 0; i < rdev->wiphy.n_cipher_suites; i++) {
6858 if (key.p.cipher == rdev->wiphy.cipher_suites[i]) {
6867 if (!rdev->ops->auth)
6870 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
6871 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
6874 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
6875 chan = nl80211_get_valid_chan(&rdev->wiphy,
6876 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
6880 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
6881 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
6883 if (info->attrs[NL80211_ATTR_IE]) {
6884 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
6885 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
6888 auth_type = nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
6889 if (!nl80211_valid_auth_type(rdev, auth_type, NL80211_CMD_AUTHENTICATE))
6892 if (auth_type == NL80211_AUTHTYPE_SAE &&
6893 !info->attrs[NL80211_ATTR_SAE_DATA])
6896 if (info->attrs[NL80211_ATTR_SAE_DATA]) {
6897 if (auth_type != NL80211_AUTHTYPE_SAE)
6899 sae_data = nla_data(info->attrs[NL80211_ATTR_SAE_DATA]);
6900 sae_data_len = nla_len(info->attrs[NL80211_ATTR_SAE_DATA]);
6901 /* need to include at least Auth Transaction and Status Code */
6902 if (sae_data_len < 4)
6906 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
6909 * Since we no longer track auth state, ignore
6910 * requests to only change local state.
6912 if (local_state_change)
6915 wdev_lock(dev->ieee80211_ptr);
6916 err = cfg80211_mlme_auth(rdev, dev, chan, auth_type, bssid,
6917 ssid, ssid_len, ie, ie_len,
6918 key.p.key, key.p.key_len, key.idx,
6919 sae_data, sae_data_len);
6920 wdev_unlock(dev->ieee80211_ptr);
6924 static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
6925 struct genl_info *info,
6926 struct cfg80211_crypto_settings *settings,
6929 memset(settings, 0, sizeof(*settings));
6931 settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
6933 if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
6935 proto = nla_get_u16(
6936 info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
6937 settings->control_port_ethertype = cpu_to_be16(proto);
6938 if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
6941 if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
6942 settings->control_port_no_encrypt = true;
6944 settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
6946 if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
6950 data = nla_data(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6951 len = nla_len(info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]);
6952 settings->n_ciphers_pairwise = len / sizeof(u32);
6954 if (len % sizeof(u32))
6957 if (settings->n_ciphers_pairwise > cipher_limit)
6960 memcpy(settings->ciphers_pairwise, data, len);
6962 for (i = 0; i < settings->n_ciphers_pairwise; i++)
6963 if (!cfg80211_supported_cipher_suite(
6965 settings->ciphers_pairwise[i]))
6969 if (info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]) {
6970 settings->cipher_group =
6971 nla_get_u32(info->attrs[NL80211_ATTR_CIPHER_SUITE_GROUP]);
6972 if (!cfg80211_supported_cipher_suite(&rdev->wiphy,
6973 settings->cipher_group))
6977 if (info->attrs[NL80211_ATTR_WPA_VERSIONS]) {
6978 settings->wpa_versions =
6979 nla_get_u32(info->attrs[NL80211_ATTR_WPA_VERSIONS]);
6980 if (!nl80211_valid_wpa_versions(settings->wpa_versions))
6984 if (info->attrs[NL80211_ATTR_AKM_SUITES]) {
6988 data = nla_data(info->attrs[NL80211_ATTR_AKM_SUITES]);
6989 len = nla_len(info->attrs[NL80211_ATTR_AKM_SUITES]);
6990 settings->n_akm_suites = len / sizeof(u32);
6992 if (len % sizeof(u32))
6995 if (settings->n_akm_suites > NL80211_MAX_NR_AKM_SUITES)
6998 memcpy(settings->akm_suites, data, len);
7004 static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
7006 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7007 struct net_device *dev = info->user_ptr[1];
7008 struct ieee80211_channel *chan;
7009 struct cfg80211_assoc_request req = {};
7010 const u8 *bssid, *ssid;
7011 int err, ssid_len = 0;
7013 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7016 if (!info->attrs[NL80211_ATTR_MAC] ||
7017 !info->attrs[NL80211_ATTR_SSID] ||
7018 !info->attrs[NL80211_ATTR_WIPHY_FREQ])
7021 if (!rdev->ops->assoc)
7024 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7025 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7028 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7030 chan = nl80211_get_valid_chan(&rdev->wiphy,
7031 info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7035 ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7036 ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7038 if (info->attrs[NL80211_ATTR_IE]) {
7039 req.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7040 req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7043 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7044 enum nl80211_mfp mfp =
7045 nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7046 if (mfp == NL80211_MFP_REQUIRED)
7048 else if (mfp != NL80211_MFP_NO)
7052 if (info->attrs[NL80211_ATTR_PREV_BSSID])
7053 req.prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
7055 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7056 req.flags |= ASSOC_REQ_DISABLE_HT;
7058 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7059 memcpy(&req.ht_capa_mask,
7060 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7061 sizeof(req.ht_capa_mask));
7063 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7064 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7066 memcpy(&req.ht_capa,
7067 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7068 sizeof(req.ht_capa));
7071 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7072 req.flags |= ASSOC_REQ_DISABLE_VHT;
7074 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7075 memcpy(&req.vht_capa_mask,
7076 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7077 sizeof(req.vht_capa_mask));
7079 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7080 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7082 memcpy(&req.vht_capa,
7083 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7084 sizeof(req.vht_capa));
7087 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7088 if (!(rdev->wiphy.features &
7089 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7090 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7092 req.flags |= ASSOC_REQ_USE_RRM;
7095 err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
7097 wdev_lock(dev->ieee80211_ptr);
7098 err = cfg80211_mlme_assoc(rdev, dev, chan, bssid,
7099 ssid, ssid_len, &req);
7100 wdev_unlock(dev->ieee80211_ptr);
7106 static int nl80211_deauthenticate(struct sk_buff *skb, struct genl_info *info)
7108 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7109 struct net_device *dev = info->user_ptr[1];
7110 const u8 *ie = NULL, *bssid;
7111 int ie_len = 0, err;
7113 bool local_state_change;
7115 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7118 if (!info->attrs[NL80211_ATTR_MAC])
7121 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7124 if (!rdev->ops->deauth)
7127 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7128 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7131 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7133 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7134 if (reason_code == 0) {
7135 /* Reason Code 0 is reserved */
7139 if (info->attrs[NL80211_ATTR_IE]) {
7140 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7141 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7144 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7146 wdev_lock(dev->ieee80211_ptr);
7147 err = cfg80211_mlme_deauth(rdev, dev, bssid, ie, ie_len, reason_code,
7148 local_state_change);
7149 wdev_unlock(dev->ieee80211_ptr);
7153 static int nl80211_disassociate(struct sk_buff *skb, struct genl_info *info)
7155 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7156 struct net_device *dev = info->user_ptr[1];
7157 const u8 *ie = NULL, *bssid;
7158 int ie_len = 0, err;
7160 bool local_state_change;
7162 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7165 if (!info->attrs[NL80211_ATTR_MAC])
7168 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7171 if (!rdev->ops->disassoc)
7174 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7175 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7178 bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7180 reason_code = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7181 if (reason_code == 0) {
7182 /* Reason Code 0 is reserved */
7186 if (info->attrs[NL80211_ATTR_IE]) {
7187 ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7188 ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7191 local_state_change = !!info->attrs[NL80211_ATTR_LOCAL_STATE_CHANGE];
7193 wdev_lock(dev->ieee80211_ptr);
7194 err = cfg80211_mlme_disassoc(rdev, dev, bssid, ie, ie_len, reason_code,
7195 local_state_change);
7196 wdev_unlock(dev->ieee80211_ptr);
7201 nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
7202 int mcast_rate[IEEE80211_NUM_BANDS],
7205 struct wiphy *wiphy = &rdev->wiphy;
7209 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
7210 struct ieee80211_supported_band *sband;
7212 sband = wiphy->bands[band];
7216 for (i = 0; i < sband->n_bitrates; i++) {
7217 if (sband->bitrates[i].bitrate == rateval) {
7218 mcast_rate[band] = i + 1;
7228 static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
7230 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7231 struct net_device *dev = info->user_ptr[1];
7232 struct cfg80211_ibss_params ibss;
7233 struct wiphy *wiphy;
7234 struct cfg80211_cached_keys *connkeys = NULL;
7237 memset(&ibss, 0, sizeof(ibss));
7239 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7242 if (!info->attrs[NL80211_ATTR_SSID] ||
7243 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7246 ibss.beacon_interval = 100;
7248 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
7249 ibss.beacon_interval =
7250 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
7251 if (ibss.beacon_interval < 1 || ibss.beacon_interval > 10000)
7255 if (!rdev->ops->join_ibss)
7258 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7261 wiphy = &rdev->wiphy;
7263 if (info->attrs[NL80211_ATTR_MAC]) {
7264 ibss.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7266 if (!is_valid_ether_addr(ibss.bssid))
7269 ibss.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7270 ibss.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7272 if (info->attrs[NL80211_ATTR_IE]) {
7273 ibss.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7274 ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7277 err = nl80211_parse_chandef(rdev, info, &ibss.chandef);
7281 if (!cfg80211_reg_can_beacon(&rdev->wiphy, &ibss.chandef,
7282 NL80211_IFTYPE_ADHOC))
7285 switch (ibss.chandef.width) {
7286 case NL80211_CHAN_WIDTH_5:
7287 case NL80211_CHAN_WIDTH_10:
7288 case NL80211_CHAN_WIDTH_20_NOHT:
7290 case NL80211_CHAN_WIDTH_20:
7291 case NL80211_CHAN_WIDTH_40:
7292 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7295 case NL80211_CHAN_WIDTH_80:
7296 case NL80211_CHAN_WIDTH_80P80:
7297 case NL80211_CHAN_WIDTH_160:
7298 if (!(rdev->wiphy.features & NL80211_FEATURE_HT_IBSS))
7300 if (!wiphy_ext_feature_isset(&rdev->wiphy,
7301 NL80211_EXT_FEATURE_VHT_IBSS))
7308 ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
7309 ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
7311 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
7313 nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7315 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
7316 struct ieee80211_supported_band *sband =
7317 wiphy->bands[ibss.chandef.chan->band];
7319 err = ieee80211_get_ratemask(sband, rates, n_rates,
7325 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7326 memcpy(&ibss.ht_capa_mask,
7327 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7328 sizeof(ibss.ht_capa_mask));
7330 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7331 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7333 memcpy(&ibss.ht_capa,
7334 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7335 sizeof(ibss.ht_capa));
7338 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
7339 !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
7340 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
7343 if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7346 connkeys = nl80211_parse_connkeys(rdev,
7347 info->attrs[NL80211_ATTR_KEYS],
7349 if (IS_ERR(connkeys))
7350 return PTR_ERR(connkeys);
7352 if ((ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) &&
7360 nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
7362 ibss.userspace_handles_dfs =
7363 nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
7365 err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
7371 static int nl80211_leave_ibss(struct sk_buff *skb, struct genl_info *info)
7373 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7374 struct net_device *dev = info->user_ptr[1];
7376 if (!rdev->ops->leave_ibss)
7379 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC)
7382 return cfg80211_leave_ibss(rdev, dev, false);
7385 static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
7387 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7388 struct net_device *dev = info->user_ptr[1];
7389 int mcast_rate[IEEE80211_NUM_BANDS];
7393 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_ADHOC &&
7394 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT &&
7395 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_OCB)
7398 if (!rdev->ops->set_mcast_rate)
7401 memset(mcast_rate, 0, sizeof(mcast_rate));
7403 if (!info->attrs[NL80211_ATTR_MCAST_RATE])
7406 nla_rate = nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
7407 if (!nl80211_parse_mcast_rate(rdev, mcast_rate, nla_rate))
7410 err = rdev->ops->set_mcast_rate(&rdev->wiphy, dev, mcast_rate);
7415 static struct sk_buff *
7416 __cfg80211_alloc_vendor_skb(struct cfg80211_registered_device *rdev,
7417 struct wireless_dev *wdev, int approxlen,
7418 u32 portid, u32 seq, enum nl80211_commands cmd,
7419 enum nl80211_attrs attr,
7420 const struct nl80211_vendor_cmd_info *info,
7423 struct sk_buff *skb;
7425 struct nlattr *data;
7427 skb = nlmsg_new(approxlen + 100, gfp);
7431 hdr = nl80211hdr_put(skb, portid, seq, 0, cmd);
7437 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
7438 goto nla_put_failure;
7441 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_ID,
7443 goto nla_put_failure;
7444 if (nla_put_u32(skb, NL80211_ATTR_VENDOR_SUBCMD,
7446 goto nla_put_failure;
7450 if (nla_put_u64(skb, NL80211_ATTR_WDEV,
7452 goto nla_put_failure;
7454 nla_put_u32(skb, NL80211_ATTR_IFINDEX,
7455 wdev->netdev->ifindex))
7456 goto nla_put_failure;
7459 data = nla_nest_start(skb, attr);
7461 ((void **)skb->cb)[0] = rdev;
7462 ((void **)skb->cb)[1] = hdr;
7463 ((void **)skb->cb)[2] = data;
7472 struct sk_buff *__cfg80211_alloc_event_skb(struct wiphy *wiphy,
7473 struct wireless_dev *wdev,
7474 enum nl80211_commands cmd,
7475 enum nl80211_attrs attr,
7476 int vendor_event_idx,
7477 int approxlen, gfp_t gfp)
7479 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
7480 const struct nl80211_vendor_cmd_info *info;
7483 case NL80211_CMD_TESTMODE:
7484 if (WARN_ON(vendor_event_idx != -1))
7488 case NL80211_CMD_VENDOR:
7489 if (WARN_ON(vendor_event_idx < 0 ||
7490 vendor_event_idx >= wiphy->n_vendor_events))
7492 info = &wiphy->vendor_events[vendor_event_idx];
7499 return __cfg80211_alloc_vendor_skb(rdev, wdev, approxlen, 0, 0,
7500 cmd, attr, info, gfp);
7502 EXPORT_SYMBOL(__cfg80211_alloc_event_skb);
7504 void __cfg80211_send_event_skb(struct sk_buff *skb, gfp_t gfp)
7506 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
7507 void *hdr = ((void **)skb->cb)[1];
7508 struct nlattr *data = ((void **)skb->cb)[2];
7509 enum nl80211_multicast_groups mcgrp = NL80211_MCGRP_TESTMODE;
7511 /* clear CB data for netlink core to own from now on */
7512 memset(skb->cb, 0, sizeof(skb->cb));
7514 nla_nest_end(skb, data);
7515 genlmsg_end(skb, hdr);
7517 if (data->nla_type == NL80211_ATTR_VENDOR_DATA)
7518 mcgrp = NL80211_MCGRP_VENDOR;
7520 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
7523 EXPORT_SYMBOL(__cfg80211_send_event_skb);
7525 #ifdef CONFIG_NL80211_TESTMODE
7526 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
7528 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7529 struct wireless_dev *wdev =
7530 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
7533 if (!rdev->ops->testmode_cmd)
7537 err = PTR_ERR(wdev);
7541 } else if (wdev->wiphy != &rdev->wiphy) {
7545 if (!info->attrs[NL80211_ATTR_TESTDATA])
7548 rdev->cur_cmd_info = info;
7549 err = rdev_testmode_cmd(rdev, wdev,
7550 nla_data(info->attrs[NL80211_ATTR_TESTDATA]),
7551 nla_len(info->attrs[NL80211_ATTR_TESTDATA]));
7552 rdev->cur_cmd_info = NULL;
7557 static int nl80211_testmode_dump(struct sk_buff *skb,
7558 struct netlink_callback *cb)
7560 struct cfg80211_registered_device *rdev;
7570 * 0 is a valid index, but not valid for args[0],
7571 * so we need to offset by 1.
7573 phy_idx = cb->args[0] - 1;
7575 err = nlmsg_parse(cb->nlh, GENL_HDRLEN + nl80211_fam.hdrsize,
7576 nl80211_fam.attrbuf, nl80211_fam.maxattr,
7581 rdev = __cfg80211_rdev_from_attrs(sock_net(skb->sk),
7582 nl80211_fam.attrbuf);
7584 err = PTR_ERR(rdev);
7587 phy_idx = rdev->wiphy_idx;
7590 if (nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA])
7592 (long)nl80211_fam.attrbuf[NL80211_ATTR_TESTDATA];
7596 data = nla_data((void *)cb->args[1]);
7597 data_len = nla_len((void *)cb->args[1]);
7600 rdev = cfg80211_rdev_by_wiphy_idx(phy_idx);
7606 if (!rdev->ops->testmode_dump) {
7612 void *hdr = nl80211hdr_put(skb, NETLINK_CB(cb->skb).portid,
7613 cb->nlh->nlmsg_seq, NLM_F_MULTI,
7614 NL80211_CMD_TESTMODE);
7615 struct nlattr *tmdata;
7620 if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
7621 genlmsg_cancel(skb, hdr);
7625 tmdata = nla_nest_start(skb, NL80211_ATTR_TESTDATA);
7627 genlmsg_cancel(skb, hdr);
7630 err = rdev_testmode_dump(rdev, skb, cb, data, data_len);
7631 nla_nest_end(skb, tmdata);
7633 if (err == -ENOBUFS || err == -ENOENT) {
7634 genlmsg_cancel(skb, hdr);
7637 genlmsg_cancel(skb, hdr);
7641 genlmsg_end(skb, hdr);
7646 cb->args[0] = phy_idx + 1;
7653 static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
7655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7656 struct net_device *dev = info->user_ptr[1];
7657 struct cfg80211_connect_params connect;
7658 struct wiphy *wiphy;
7659 struct cfg80211_cached_keys *connkeys = NULL;
7662 memset(&connect, 0, sizeof(connect));
7664 if (!is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
7667 if (!info->attrs[NL80211_ATTR_SSID] ||
7668 !nla_len(info->attrs[NL80211_ATTR_SSID]))
7671 if (info->attrs[NL80211_ATTR_AUTH_TYPE]) {
7673 nla_get_u32(info->attrs[NL80211_ATTR_AUTH_TYPE]);
7674 if (!nl80211_valid_auth_type(rdev, connect.auth_type,
7675 NL80211_CMD_CONNECT))
7678 connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
7680 connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
7682 err = nl80211_crypto_settings(rdev, info, &connect.crypto,
7683 NL80211_MAX_NR_CIPHER_SUITES);
7687 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7688 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7691 wiphy = &rdev->wiphy;
7693 connect.bg_scan_period = -1;
7694 if (info->attrs[NL80211_ATTR_BG_SCAN_PERIOD] &&
7695 (wiphy->flags & WIPHY_FLAG_SUPPORTS_FW_ROAM)) {
7696 connect.bg_scan_period =
7697 nla_get_u16(info->attrs[NL80211_ATTR_BG_SCAN_PERIOD]);
7700 if (info->attrs[NL80211_ATTR_MAC])
7701 connect.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7702 else if (info->attrs[NL80211_ATTR_MAC_HINT])
7703 connect.bssid_hint =
7704 nla_data(info->attrs[NL80211_ATTR_MAC_HINT]);
7705 connect.ssid = nla_data(info->attrs[NL80211_ATTR_SSID]);
7706 connect.ssid_len = nla_len(info->attrs[NL80211_ATTR_SSID]);
7708 if (info->attrs[NL80211_ATTR_IE]) {
7709 connect.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
7710 connect.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
7713 if (info->attrs[NL80211_ATTR_USE_MFP]) {
7714 connect.mfp = nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]);
7715 if (connect.mfp != NL80211_MFP_REQUIRED &&
7716 connect.mfp != NL80211_MFP_NO)
7719 connect.mfp = NL80211_MFP_NO;
7722 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
7723 connect.channel = nl80211_get_valid_chan(
7724 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ]);
7725 if (!connect.channel)
7727 } else if (info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]) {
7728 connect.channel_hint = nl80211_get_valid_chan(
7729 wiphy, info->attrs[NL80211_ATTR_WIPHY_FREQ_HINT]);
7730 if (!connect.channel_hint)
7734 if (connect.privacy && info->attrs[NL80211_ATTR_KEYS]) {
7735 connkeys = nl80211_parse_connkeys(rdev,
7736 info->attrs[NL80211_ATTR_KEYS], NULL);
7737 if (IS_ERR(connkeys))
7738 return PTR_ERR(connkeys);
7741 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_HT]))
7742 connect.flags |= ASSOC_REQ_DISABLE_HT;
7744 if (info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK])
7745 memcpy(&connect.ht_capa_mask,
7746 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]),
7747 sizeof(connect.ht_capa_mask));
7749 if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) {
7750 if (!info->attrs[NL80211_ATTR_HT_CAPABILITY_MASK]) {
7754 memcpy(&connect.ht_capa,
7755 nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]),
7756 sizeof(connect.ht_capa));
7759 if (nla_get_flag(info->attrs[NL80211_ATTR_DISABLE_VHT]))
7760 connect.flags |= ASSOC_REQ_DISABLE_VHT;
7762 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK])
7763 memcpy(&connect.vht_capa_mask,
7764 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]),
7765 sizeof(connect.vht_capa_mask));
7767 if (info->attrs[NL80211_ATTR_VHT_CAPABILITY]) {
7768 if (!info->attrs[NL80211_ATTR_VHT_CAPABILITY_MASK]) {
7772 memcpy(&connect.vht_capa,
7773 nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]),
7774 sizeof(connect.vht_capa));
7777 if (nla_get_flag(info->attrs[NL80211_ATTR_USE_RRM])) {
7778 if (!(rdev->wiphy.features &
7779 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES) ||
7780 !(rdev->wiphy.features & NL80211_FEATURE_QUIET))
7782 connect.flags |= ASSOC_REQ_USE_RRM;
7785 wdev_lock(dev->ieee80211_ptr);
7786 err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
7787 wdev_unlock(dev->ieee80211_ptr);
7793 static int nl80211_disconnect(struct sk_buff *skb, struct genl_info *info)
7795 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7796 struct net_device *dev = info->user_ptr[1];
7800 if (!info->attrs[NL80211_ATTR_REASON_CODE])
7801 reason = WLAN_REASON_DEAUTH_LEAVING;
7803 reason = nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
7808 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7809 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7812 wdev_lock(dev->ieee80211_ptr);
7813 ret = cfg80211_disconnect(rdev, dev, reason, true);
7814 wdev_unlock(dev->ieee80211_ptr);
7818 static int nl80211_wiphy_netns(struct sk_buff *skb, struct genl_info *info)
7820 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7824 if (info->attrs[NL80211_ATTR_PID]) {
7825 u32 pid = nla_get_u32(info->attrs[NL80211_ATTR_PID]);
7827 net = get_net_ns_by_pid(pid);
7828 } else if (info->attrs[NL80211_ATTR_NETNS_FD]) {
7829 u32 fd = nla_get_u32(info->attrs[NL80211_ATTR_NETNS_FD]);
7831 net = get_net_ns_by_fd(fd);
7837 return PTR_ERR(net);
7841 /* check if anything to do */
7842 if (!net_eq(wiphy_net(&rdev->wiphy), net))
7843 err = cfg80211_switch_netns(rdev, net);
7849 static int nl80211_setdel_pmksa(struct sk_buff *skb, struct genl_info *info)
7851 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7852 int (*rdev_ops)(struct wiphy *wiphy, struct net_device *dev,
7853 struct cfg80211_pmksa *pmksa) = NULL;
7854 struct net_device *dev = info->user_ptr[1];
7855 struct cfg80211_pmksa pmksa;
7857 memset(&pmksa, 0, sizeof(struct cfg80211_pmksa));
7859 if (!info->attrs[NL80211_ATTR_MAC])
7862 if (!info->attrs[NL80211_ATTR_PMKID])
7865 pmksa.pmkid = nla_data(info->attrs[NL80211_ATTR_PMKID]);
7866 pmksa.bssid = nla_data(info->attrs[NL80211_ATTR_MAC]);
7868 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7869 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7872 switch (info->genlhdr->cmd) {
7873 case NL80211_CMD_SET_PMKSA:
7874 rdev_ops = rdev->ops->set_pmksa;
7876 case NL80211_CMD_DEL_PMKSA:
7877 rdev_ops = rdev->ops->del_pmksa;
7887 return rdev_ops(&rdev->wiphy, dev, &pmksa);
7890 static int nl80211_flush_pmksa(struct sk_buff *skb, struct genl_info *info)
7892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7893 struct net_device *dev = info->user_ptr[1];
7895 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION &&
7896 dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_CLIENT)
7899 if (!rdev->ops->flush_pmksa)
7902 return rdev_flush_pmksa(rdev, dev);
7905 static int nl80211_tdls_mgmt(struct sk_buff *skb, struct genl_info *info)
7907 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7908 struct net_device *dev = info->user_ptr[1];
7909 u8 action_code, dialog_token;
7910 u32 peer_capability = 0;
7915 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7916 !rdev->ops->tdls_mgmt)
7919 if (!info->attrs[NL80211_ATTR_TDLS_ACTION] ||
7920 !info->attrs[NL80211_ATTR_STATUS_CODE] ||
7921 !info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN] ||
7922 !info->attrs[NL80211_ATTR_IE] ||
7923 !info->attrs[NL80211_ATTR_MAC])
7926 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7927 action_code = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_ACTION]);
7928 status_code = nla_get_u16(info->attrs[NL80211_ATTR_STATUS_CODE]);
7929 dialog_token = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_DIALOG_TOKEN]);
7930 initiator = nla_get_flag(info->attrs[NL80211_ATTR_TDLS_INITIATOR]);
7931 if (info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY])
7933 nla_get_u32(info->attrs[NL80211_ATTR_TDLS_PEER_CAPABILITY]);
7935 return rdev_tdls_mgmt(rdev, dev, peer, action_code,
7936 dialog_token, status_code, peer_capability,
7938 nla_data(info->attrs[NL80211_ATTR_IE]),
7939 nla_len(info->attrs[NL80211_ATTR_IE]));
7942 static int nl80211_tdls_oper(struct sk_buff *skb, struct genl_info *info)
7944 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7945 struct net_device *dev = info->user_ptr[1];
7946 enum nl80211_tdls_operation operation;
7949 if (!(rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
7950 !rdev->ops->tdls_oper)
7953 if (!info->attrs[NL80211_ATTR_TDLS_OPERATION] ||
7954 !info->attrs[NL80211_ATTR_MAC])
7957 operation = nla_get_u8(info->attrs[NL80211_ATTR_TDLS_OPERATION]);
7958 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
7960 return rdev_tdls_oper(rdev, dev, peer, operation);
7963 static int nl80211_remain_on_channel(struct sk_buff *skb,
7964 struct genl_info *info)
7966 struct cfg80211_registered_device *rdev = info->user_ptr[0];
7967 struct wireless_dev *wdev = info->user_ptr[1];
7968 struct cfg80211_chan_def chandef;
7969 struct sk_buff *msg;
7975 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ] ||
7976 !info->attrs[NL80211_ATTR_DURATION])
7979 duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
7981 if (!rdev->ops->remain_on_channel ||
7982 !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL))
7986 * We should be on that channel for at least a minimum amount of
7987 * time (10ms) but no longer than the driver supports.
7989 if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
7990 duration > rdev->wiphy.max_remain_on_channel_duration)
7993 err = nl80211_parse_chandef(rdev, info, &chandef);
7997 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8001 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8002 NL80211_CMD_REMAIN_ON_CHANNEL);
8008 err = rdev_remain_on_channel(rdev, wdev, chandef.chan,
8014 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8015 goto nla_put_failure;
8017 genlmsg_end(msg, hdr);
8019 return genlmsg_reply(msg, info);
8028 static int nl80211_cancel_remain_on_channel(struct sk_buff *skb,
8029 struct genl_info *info)
8031 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8032 struct wireless_dev *wdev = info->user_ptr[1];
8035 if (!info->attrs[NL80211_ATTR_COOKIE])
8038 if (!rdev->ops->cancel_remain_on_channel)
8041 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8043 return rdev_cancel_remain_on_channel(rdev, wdev, cookie);
8046 static u32 rateset_to_mask(struct ieee80211_supported_band *sband,
8047 u8 *rates, u8 rates_len)
8052 for (i = 0; i < rates_len; i++) {
8053 int rate = (rates[i] & 0x7f) * 5;
8055 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
8056 struct ieee80211_rate *srate =
8057 &sband->bitrates[ridx];
8058 if (rate == srate->bitrate) {
8063 if (ridx == sband->n_bitrates)
8064 return 0; /* rate not found */
8070 static bool ht_rateset_to_mask(struct ieee80211_supported_band *sband,
8071 u8 *rates, u8 rates_len,
8072 u8 mcs[IEEE80211_HT_MCS_MASK_LEN])
8076 memset(mcs, 0, IEEE80211_HT_MCS_MASK_LEN);
8078 for (i = 0; i < rates_len; i++) {
8081 ridx = rates[i] / 8;
8082 rbit = BIT(rates[i] % 8);
8084 /* check validity */
8085 if ((ridx < 0) || (ridx >= IEEE80211_HT_MCS_MASK_LEN))
8088 /* check availability */
8089 if (sband->ht_cap.mcs.rx_mask[ridx] & rbit)
8098 static u16 vht_mcs_map_to_mcs_mask(u8 vht_mcs_map)
8102 switch (vht_mcs_map) {
8103 case IEEE80211_VHT_MCS_NOT_SUPPORTED:
8105 case IEEE80211_VHT_MCS_SUPPORT_0_7:
8108 case IEEE80211_VHT_MCS_SUPPORT_0_8:
8111 case IEEE80211_VHT_MCS_SUPPORT_0_9:
8121 static void vht_build_mcs_mask(u16 vht_mcs_map,
8122 u16 vht_mcs_mask[NL80211_VHT_NSS_MAX])
8126 for (nss = 0; nss < NL80211_VHT_NSS_MAX; nss++) {
8127 vht_mcs_mask[nss] = vht_mcs_map_to_mcs_mask(vht_mcs_map & 0x03);
8132 static bool vht_set_mcs_mask(struct ieee80211_supported_band *sband,
8133 struct nl80211_txrate_vht *txrate,
8134 u16 mcs[NL80211_VHT_NSS_MAX])
8136 u16 tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8137 u16 tx_mcs_mask[NL80211_VHT_NSS_MAX] = {};
8140 if (!sband->vht_cap.vht_supported)
8143 memset(mcs, 0, sizeof(u16) * NL80211_VHT_NSS_MAX);
8145 /* Build vht_mcs_mask from VHT capabilities */
8146 vht_build_mcs_mask(tx_mcs_map, tx_mcs_mask);
8148 for (i = 0; i < NL80211_VHT_NSS_MAX; i++) {
8149 if ((tx_mcs_mask[i] & txrate->mcs[i]) == txrate->mcs[i])
8150 mcs[i] = txrate->mcs[i];
8158 static const struct nla_policy nl80211_txattr_policy[NL80211_TXRATE_MAX + 1] = {
8159 [NL80211_TXRATE_LEGACY] = { .type = NLA_BINARY,
8160 .len = NL80211_MAX_SUPP_RATES },
8161 [NL80211_TXRATE_HT] = { .type = NLA_BINARY,
8162 .len = NL80211_MAX_SUPP_HT_RATES },
8163 [NL80211_TXRATE_VHT] = { .len = sizeof(struct nl80211_txrate_vht)},
8164 [NL80211_TXRATE_GI] = { .type = NLA_U8 },
8167 static int nl80211_set_tx_bitrate_mask(struct sk_buff *skb,
8168 struct genl_info *info)
8170 struct nlattr *tb[NL80211_TXRATE_MAX + 1];
8171 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8172 struct cfg80211_bitrate_mask mask;
8174 struct net_device *dev = info->user_ptr[1];
8175 struct nlattr *tx_rates;
8176 struct ieee80211_supported_band *sband;
8179 if (!rdev->ops->set_bitrate_mask)
8182 memset(&mask, 0, sizeof(mask));
8183 /* Default to all rates enabled */
8184 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
8185 sband = rdev->wiphy.bands[i];
8190 mask.control[i].legacy = (1 << sband->n_bitrates) - 1;
8191 memcpy(mask.control[i].ht_mcs,
8192 sband->ht_cap.mcs.rx_mask,
8193 sizeof(mask.control[i].ht_mcs));
8195 if (!sband->vht_cap.vht_supported)
8198 vht_tx_mcs_map = le16_to_cpu(sband->vht_cap.vht_mcs.tx_mcs_map);
8199 vht_build_mcs_mask(vht_tx_mcs_map, mask.control[i].vht_mcs);
8202 /* if no rates are given set it back to the defaults */
8203 if (!info->attrs[NL80211_ATTR_TX_RATES])
8207 * The nested attribute uses enum nl80211_band as the index. This maps
8208 * directly to the enum ieee80211_band values used in cfg80211.
8210 BUILD_BUG_ON(NL80211_MAX_SUPP_HT_RATES > IEEE80211_HT_MCS_MASK_LEN * 8);
8211 nla_for_each_nested(tx_rates, info->attrs[NL80211_ATTR_TX_RATES], rem) {
8212 enum ieee80211_band band = nla_type(tx_rates);
8215 if (band < 0 || band >= IEEE80211_NUM_BANDS)
8217 sband = rdev->wiphy.bands[band];
8220 err = nla_parse(tb, NL80211_TXRATE_MAX, nla_data(tx_rates),
8221 nla_len(tx_rates), nl80211_txattr_policy);
8224 if (tb[NL80211_TXRATE_LEGACY]) {
8225 mask.control[band].legacy = rateset_to_mask(
8227 nla_data(tb[NL80211_TXRATE_LEGACY]),
8228 nla_len(tb[NL80211_TXRATE_LEGACY]));
8229 if ((mask.control[band].legacy == 0) &&
8230 nla_len(tb[NL80211_TXRATE_LEGACY]))
8233 if (tb[NL80211_TXRATE_HT]) {
8234 if (!ht_rateset_to_mask(
8236 nla_data(tb[NL80211_TXRATE_HT]),
8237 nla_len(tb[NL80211_TXRATE_HT]),
8238 mask.control[band].ht_mcs))
8241 if (tb[NL80211_TXRATE_VHT]) {
8242 if (!vht_set_mcs_mask(
8244 nla_data(tb[NL80211_TXRATE_VHT]),
8245 mask.control[band].vht_mcs))
8248 if (tb[NL80211_TXRATE_GI]) {
8249 mask.control[band].gi =
8250 nla_get_u8(tb[NL80211_TXRATE_GI]);
8251 if (mask.control[band].gi > NL80211_TXRATE_FORCE_LGI)
8255 if (mask.control[band].legacy == 0) {
8256 /* don't allow empty legacy rates if HT or VHT
8257 * are not even supported.
8259 if (!(rdev->wiphy.bands[band]->ht_cap.ht_supported ||
8260 rdev->wiphy.bands[band]->vht_cap.vht_supported))
8263 for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
8264 if (mask.control[band].ht_mcs[i])
8267 for (i = 0; i < NL80211_VHT_NSS_MAX; i++)
8268 if (mask.control[band].vht_mcs[i])
8271 /* legacy and mcs rates may not be both empty */
8277 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
8280 static int nl80211_register_mgmt(struct sk_buff *skb, struct genl_info *info)
8282 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8283 struct wireless_dev *wdev = info->user_ptr[1];
8284 u16 frame_type = IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION;
8286 if (!info->attrs[NL80211_ATTR_FRAME_MATCH])
8289 if (info->attrs[NL80211_ATTR_FRAME_TYPE])
8290 frame_type = nla_get_u16(info->attrs[NL80211_ATTR_FRAME_TYPE]);
8292 switch (wdev->iftype) {
8293 case NL80211_IFTYPE_STATION:
8294 case NL80211_IFTYPE_ADHOC:
8295 case NL80211_IFTYPE_P2P_CLIENT:
8296 case NL80211_IFTYPE_AP:
8297 case NL80211_IFTYPE_AP_VLAN:
8298 case NL80211_IFTYPE_MESH_POINT:
8299 case NL80211_IFTYPE_P2P_GO:
8300 case NL80211_IFTYPE_P2P_DEVICE:
8306 /* not much point in registering if we can't reply */
8307 if (!rdev->ops->mgmt_tx)
8310 return cfg80211_mlme_register_mgmt(wdev, info->snd_portid, frame_type,
8311 nla_data(info->attrs[NL80211_ATTR_FRAME_MATCH]),
8312 nla_len(info->attrs[NL80211_ATTR_FRAME_MATCH]));
8315 static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info)
8317 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8318 struct wireless_dev *wdev = info->user_ptr[1];
8319 struct cfg80211_chan_def chandef;
8323 struct sk_buff *msg = NULL;
8324 struct cfg80211_mgmt_tx_params params = {
8325 .dont_wait_for_ack =
8326 info->attrs[NL80211_ATTR_DONT_WAIT_FOR_ACK],
8329 if (!info->attrs[NL80211_ATTR_FRAME])
8332 if (!rdev->ops->mgmt_tx)
8335 switch (wdev->iftype) {
8336 case NL80211_IFTYPE_P2P_DEVICE:
8337 if (!info->attrs[NL80211_ATTR_WIPHY_FREQ])
8339 case NL80211_IFTYPE_STATION:
8340 case NL80211_IFTYPE_ADHOC:
8341 case NL80211_IFTYPE_P2P_CLIENT:
8342 case NL80211_IFTYPE_AP:
8343 case NL80211_IFTYPE_AP_VLAN:
8344 case NL80211_IFTYPE_MESH_POINT:
8345 case NL80211_IFTYPE_P2P_GO:
8351 if (info->attrs[NL80211_ATTR_DURATION]) {
8352 if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8354 params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
8357 * We should wait on the channel for at least a minimum amount
8358 * of time (10ms) but no longer than the driver supports.
8360 if (params.wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME ||
8361 params.wait > rdev->wiphy.max_remain_on_channel_duration)
8366 params.offchan = info->attrs[NL80211_ATTR_OFFCHANNEL_TX_OK];
8368 if (params.offchan && !(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX))
8371 params.no_cck = nla_get_flag(info->attrs[NL80211_ATTR_TX_NO_CCK_RATE]);
8373 /* get the channel if any has been specified, otherwise pass NULL to
8374 * the driver. The latter will use the current one
8376 chandef.chan = NULL;
8377 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8378 err = nl80211_parse_chandef(rdev, info, &chandef);
8383 if (!chandef.chan && params.offchan)
8386 params.buf = nla_data(info->attrs[NL80211_ATTR_FRAME]);
8387 params.len = nla_len(info->attrs[NL80211_ATTR_FRAME]);
8389 if (info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]) {
8390 int len = nla_len(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8393 if (len % sizeof(u16))
8396 params.n_csa_offsets = len / sizeof(u16);
8397 params.csa_offsets =
8398 nla_data(info->attrs[NL80211_ATTR_CSA_C_OFFSETS_TX]);
8400 /* check that all the offsets fit the frame */
8401 for (i = 0; i < params.n_csa_offsets; i++) {
8402 if (params.csa_offsets[i] >= params.len)
8407 if (!params.dont_wait_for_ack) {
8408 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8412 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8420 params.chan = chandef.chan;
8421 err = cfg80211_mlme_mgmt_tx(rdev, wdev, ¶ms, &cookie);
8426 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
8427 goto nla_put_failure;
8429 genlmsg_end(msg, hdr);
8430 return genlmsg_reply(msg, info);
8442 static int nl80211_tx_mgmt_cancel_wait(struct sk_buff *skb, struct genl_info *info)
8444 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8445 struct wireless_dev *wdev = info->user_ptr[1];
8448 if (!info->attrs[NL80211_ATTR_COOKIE])
8451 if (!rdev->ops->mgmt_tx_cancel_wait)
8454 switch (wdev->iftype) {
8455 case NL80211_IFTYPE_STATION:
8456 case NL80211_IFTYPE_ADHOC:
8457 case NL80211_IFTYPE_P2P_CLIENT:
8458 case NL80211_IFTYPE_AP:
8459 case NL80211_IFTYPE_AP_VLAN:
8460 case NL80211_IFTYPE_P2P_GO:
8461 case NL80211_IFTYPE_P2P_DEVICE:
8467 cookie = nla_get_u64(info->attrs[NL80211_ATTR_COOKIE]);
8469 return rdev_mgmt_tx_cancel_wait(rdev, wdev, cookie);
8472 static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
8474 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8475 struct wireless_dev *wdev;
8476 struct net_device *dev = info->user_ptr[1];
8481 if (!info->attrs[NL80211_ATTR_PS_STATE])
8484 ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
8486 if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED)
8489 wdev = dev->ieee80211_ptr;
8491 if (!rdev->ops->set_power_mgmt)
8494 state = (ps_state == NL80211_PS_ENABLED) ? true : false;
8496 if (state == wdev->ps)
8499 err = rdev_set_power_mgmt(rdev, dev, state, wdev->ps_timeout);
8505 static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
8507 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8508 enum nl80211_ps_state ps_state;
8509 struct wireless_dev *wdev;
8510 struct net_device *dev = info->user_ptr[1];
8511 struct sk_buff *msg;
8515 wdev = dev->ieee80211_ptr;
8517 if (!rdev->ops->set_power_mgmt)
8520 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
8524 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8525 NL80211_CMD_GET_POWER_SAVE);
8532 ps_state = NL80211_PS_ENABLED;
8534 ps_state = NL80211_PS_DISABLED;
8536 if (nla_put_u32(msg, NL80211_ATTR_PS_STATE, ps_state))
8537 goto nla_put_failure;
8539 genlmsg_end(msg, hdr);
8540 return genlmsg_reply(msg, info);
8549 static const struct nla_policy
8550 nl80211_attr_cqm_policy[NL80211_ATTR_CQM_MAX + 1] = {
8551 [NL80211_ATTR_CQM_RSSI_THOLD] = { .type = NLA_U32 },
8552 [NL80211_ATTR_CQM_RSSI_HYST] = { .type = NLA_U32 },
8553 [NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT] = { .type = NLA_U32 },
8554 [NL80211_ATTR_CQM_TXE_RATE] = { .type = NLA_U32 },
8555 [NL80211_ATTR_CQM_TXE_PKTS] = { .type = NLA_U32 },
8556 [NL80211_ATTR_CQM_TXE_INTVL] = { .type = NLA_U32 },
8559 static int nl80211_set_cqm_txe(struct genl_info *info,
8560 u32 rate, u32 pkts, u32 intvl)
8562 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8563 struct net_device *dev = info->user_ptr[1];
8564 struct wireless_dev *wdev = dev->ieee80211_ptr;
8566 if (rate > 100 || intvl > NL80211_CQM_TXE_MAX_INTVL)
8569 if (!rdev->ops->set_cqm_txe_config)
8572 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8573 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8576 return rdev_set_cqm_txe_config(rdev, dev, rate, pkts, intvl);
8579 static int nl80211_set_cqm_rssi(struct genl_info *info,
8580 s32 threshold, u32 hysteresis)
8582 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8583 struct net_device *dev = info->user_ptr[1];
8584 struct wireless_dev *wdev = dev->ieee80211_ptr;
8589 /* disabling - hysteresis should also be zero then */
8593 if (!rdev->ops->set_cqm_rssi_config)
8596 if (wdev->iftype != NL80211_IFTYPE_STATION &&
8597 wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)
8600 return rdev_set_cqm_rssi_config(rdev, dev, threshold, hysteresis);
8603 static int nl80211_set_cqm(struct sk_buff *skb, struct genl_info *info)
8605 struct nlattr *attrs[NL80211_ATTR_CQM_MAX + 1];
8609 cqm = info->attrs[NL80211_ATTR_CQM];
8613 err = nla_parse_nested(attrs, NL80211_ATTR_CQM_MAX, cqm,
8614 nl80211_attr_cqm_policy);
8618 if (attrs[NL80211_ATTR_CQM_RSSI_THOLD] &&
8619 attrs[NL80211_ATTR_CQM_RSSI_HYST]) {
8620 s32 threshold = nla_get_s32(attrs[NL80211_ATTR_CQM_RSSI_THOLD]);
8621 u32 hysteresis = nla_get_u32(attrs[NL80211_ATTR_CQM_RSSI_HYST]);
8623 return nl80211_set_cqm_rssi(info, threshold, hysteresis);
8626 if (attrs[NL80211_ATTR_CQM_TXE_RATE] &&
8627 attrs[NL80211_ATTR_CQM_TXE_PKTS] &&
8628 attrs[NL80211_ATTR_CQM_TXE_INTVL]) {
8629 u32 rate = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_RATE]);
8630 u32 pkts = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_PKTS]);
8631 u32 intvl = nla_get_u32(attrs[NL80211_ATTR_CQM_TXE_INTVL]);
8633 return nl80211_set_cqm_txe(info, rate, pkts, intvl);
8639 static int nl80211_join_ocb(struct sk_buff *skb, struct genl_info *info)
8641 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8642 struct net_device *dev = info->user_ptr[1];
8643 struct ocb_setup setup = {};
8646 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8650 return cfg80211_join_ocb(rdev, dev, &setup);
8653 static int nl80211_leave_ocb(struct sk_buff *skb, struct genl_info *info)
8655 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8656 struct net_device *dev = info->user_ptr[1];
8658 return cfg80211_leave_ocb(rdev, dev);
8661 static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
8663 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8664 struct net_device *dev = info->user_ptr[1];
8665 struct mesh_config cfg;
8666 struct mesh_setup setup;
8669 /* start with default */
8670 memcpy(&cfg, &default_mesh_config, sizeof(cfg));
8671 memcpy(&setup, &default_mesh_setup, sizeof(setup));
8673 if (info->attrs[NL80211_ATTR_MESH_CONFIG]) {
8674 /* and parse parameters if given */
8675 err = nl80211_parse_mesh_config(info, &cfg, NULL);
8680 if (!info->attrs[NL80211_ATTR_MESH_ID] ||
8681 !nla_len(info->attrs[NL80211_ATTR_MESH_ID]))
8684 setup.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]);
8685 setup.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]);
8687 if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
8688 !nl80211_parse_mcast_rate(rdev, setup.mcast_rate,
8689 nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
8692 if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
8693 setup.beacon_interval =
8694 nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
8695 if (setup.beacon_interval < 10 ||
8696 setup.beacon_interval > 10000)
8700 if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
8702 nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
8703 if (setup.dtim_period < 1 || setup.dtim_period > 100)
8707 if (info->attrs[NL80211_ATTR_MESH_SETUP]) {
8708 /* parse additional setup parameters if given */
8709 err = nl80211_parse_mesh_setup(info, &setup);
8715 cfg.auto_open_plinks = false;
8717 if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) {
8718 err = nl80211_parse_chandef(rdev, info, &setup.chandef);
8722 /* cfg80211_join_mesh() will sort it out */
8723 setup.chandef.chan = NULL;
8726 if (info->attrs[NL80211_ATTR_BSS_BASIC_RATES]) {
8727 u8 *rates = nla_data(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8729 nla_len(info->attrs[NL80211_ATTR_BSS_BASIC_RATES]);
8730 struct ieee80211_supported_band *sband;
8732 if (!setup.chandef.chan)
8735 sband = rdev->wiphy.bands[setup.chandef.chan->band];
8737 err = ieee80211_get_ratemask(sband, rates, n_rates,
8738 &setup.basic_rates);
8743 return cfg80211_join_mesh(rdev, dev, &setup, &cfg);
8746 static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
8748 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8749 struct net_device *dev = info->user_ptr[1];
8751 return cfg80211_leave_mesh(rdev, dev);
8755 static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
8756 struct cfg80211_registered_device *rdev)
8758 struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
8759 struct nlattr *nl_pats, *nl_pat;
8762 if (!wowlan->n_patterns)
8765 nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
8769 for (i = 0; i < wowlan->n_patterns; i++) {
8770 nl_pat = nla_nest_start(msg, i + 1);
8773 pat_len = wowlan->patterns[i].pattern_len;
8774 if (nla_put(msg, NL80211_PKTPAT_MASK, DIV_ROUND_UP(pat_len, 8),
8775 wowlan->patterns[i].mask) ||
8776 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
8777 wowlan->patterns[i].pattern) ||
8778 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
8779 wowlan->patterns[i].pkt_offset))
8781 nla_nest_end(msg, nl_pat);
8783 nla_nest_end(msg, nl_pats);
8788 static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
8789 struct cfg80211_wowlan_tcp *tcp)
8791 struct nlattr *nl_tcp;
8796 nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION);
8800 if (nla_put_in_addr(msg, NL80211_WOWLAN_TCP_SRC_IPV4, tcp->src) ||
8801 nla_put_in_addr(msg, NL80211_WOWLAN_TCP_DST_IPV4, tcp->dst) ||
8802 nla_put(msg, NL80211_WOWLAN_TCP_DST_MAC, ETH_ALEN, tcp->dst_mac) ||
8803 nla_put_u16(msg, NL80211_WOWLAN_TCP_SRC_PORT, tcp->src_port) ||
8804 nla_put_u16(msg, NL80211_WOWLAN_TCP_DST_PORT, tcp->dst_port) ||
8805 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD,
8806 tcp->payload_len, tcp->payload) ||
8807 nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL,
8808 tcp->data_interval) ||
8809 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
8810 tcp->wake_len, tcp->wake_data) ||
8811 nla_put(msg, NL80211_WOWLAN_TCP_WAKE_MASK,
8812 DIV_ROUND_UP(tcp->wake_len, 8), tcp->wake_mask))
8815 if (tcp->payload_seq.len &&
8816 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
8817 sizeof(tcp->payload_seq), &tcp->payload_seq))
8820 if (tcp->payload_tok.len &&
8821 nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
8822 sizeof(tcp->payload_tok) + tcp->tokens_size,
8826 nla_nest_end(msg, nl_tcp);
8831 static int nl80211_send_wowlan_nd(struct sk_buff *msg,
8832 struct cfg80211_sched_scan_request *req)
8834 struct nlattr *nd, *freqs, *matches, *match;
8840 nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
8844 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
8847 if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_DELAY, req->delay))
8850 freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
8854 for (i = 0; i < req->n_channels; i++)
8855 nla_put_u32(msg, i, req->channels[i]->center_freq);
8857 nla_nest_end(msg, freqs);
8859 if (req->n_match_sets) {
8860 matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
8861 for (i = 0; i < req->n_match_sets; i++) {
8862 match = nla_nest_start(msg, i);
8863 nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
8864 req->match_sets[i].ssid.ssid_len,
8865 req->match_sets[i].ssid.ssid);
8866 nla_nest_end(msg, match);
8868 nla_nest_end(msg, matches);
8871 nla_nest_end(msg, nd);
8876 static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
8878 struct cfg80211_registered_device *rdev = info->user_ptr[0];
8879 struct sk_buff *msg;
8881 u32 size = NLMSG_DEFAULT_SIZE;
8883 if (!rdev->wiphy.wowlan)
8886 if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
8887 /* adjust size to have room for all the data */
8888 size += rdev->wiphy.wowlan_config->tcp->tokens_size +
8889 rdev->wiphy.wowlan_config->tcp->payload_len +
8890 rdev->wiphy.wowlan_config->tcp->wake_len +
8891 rdev->wiphy.wowlan_config->tcp->wake_len / 8;
8894 msg = nlmsg_new(size, GFP_KERNEL);
8898 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
8899 NL80211_CMD_GET_WOWLAN);
8901 goto nla_put_failure;
8903 if (rdev->wiphy.wowlan_config) {
8904 struct nlattr *nl_wowlan;
8906 nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
8908 goto nla_put_failure;
8910 if ((rdev->wiphy.wowlan_config->any &&
8911 nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
8912 (rdev->wiphy.wowlan_config->disconnect &&
8913 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
8914 (rdev->wiphy.wowlan_config->magic_pkt &&
8915 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
8916 (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
8917 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
8918 (rdev->wiphy.wowlan_config->eap_identity_req &&
8919 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
8920 (rdev->wiphy.wowlan_config->four_way_handshake &&
8921 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
8922 (rdev->wiphy.wowlan_config->rfkill_release &&
8923 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
8924 goto nla_put_failure;
8926 if (nl80211_send_wowlan_patterns(msg, rdev))
8927 goto nla_put_failure;
8929 if (nl80211_send_wowlan_tcp(msg,
8930 rdev->wiphy.wowlan_config->tcp))
8931 goto nla_put_failure;
8933 if (nl80211_send_wowlan_nd(
8935 rdev->wiphy.wowlan_config->nd_config))
8936 goto nla_put_failure;
8938 nla_nest_end(msg, nl_wowlan);
8941 genlmsg_end(msg, hdr);
8942 return genlmsg_reply(msg, info);
8949 static int nl80211_parse_wowlan_tcp(struct cfg80211_registered_device *rdev,
8950 struct nlattr *attr,
8951 struct cfg80211_wowlan *trig)
8953 struct nlattr *tb[NUM_NL80211_WOWLAN_TCP];
8954 struct cfg80211_wowlan_tcp *cfg;
8955 struct nl80211_wowlan_tcp_data_token *tok = NULL;
8956 struct nl80211_wowlan_tcp_data_seq *seq = NULL;
8958 u32 data_size, wake_size, tokens_size = 0, wake_mask_size;
8961 if (!rdev->wiphy.wowlan->tcp)
8964 err = nla_parse(tb, MAX_NL80211_WOWLAN_TCP,
8965 nla_data(attr), nla_len(attr),
8966 nl80211_wowlan_tcp_policy);
8970 if (!tb[NL80211_WOWLAN_TCP_SRC_IPV4] ||
8971 !tb[NL80211_WOWLAN_TCP_DST_IPV4] ||
8972 !tb[NL80211_WOWLAN_TCP_DST_MAC] ||
8973 !tb[NL80211_WOWLAN_TCP_DST_PORT] ||
8974 !tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD] ||
8975 !tb[NL80211_WOWLAN_TCP_DATA_INTERVAL] ||
8976 !tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD] ||
8977 !tb[NL80211_WOWLAN_TCP_WAKE_MASK])
8980 data_size = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]);
8981 if (data_size > rdev->wiphy.wowlan->tcp->data_payload_max)
8984 if (nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) >
8985 rdev->wiphy.wowlan->tcp->data_interval_max ||
8986 nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]) == 0)
8989 wake_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]);
8990 if (wake_size > rdev->wiphy.wowlan->tcp->wake_payload_max)
8993 wake_mask_size = nla_len(tb[NL80211_WOWLAN_TCP_WAKE_MASK]);
8994 if (wake_mask_size != DIV_ROUND_UP(wake_size, 8))
8997 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]) {
8998 u32 tokln = nla_len(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9000 tok = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN]);
9001 tokens_size = tokln - sizeof(*tok);
9003 if (!tok->len || tokens_size % tok->len)
9005 if (!rdev->wiphy.wowlan->tcp->tok)
9007 if (tok->len > rdev->wiphy.wowlan->tcp->tok->max_len)
9009 if (tok->len < rdev->wiphy.wowlan->tcp->tok->min_len)
9011 if (tokens_size > rdev->wiphy.wowlan->tcp->tok->bufsize)
9013 if (tok->offset + tok->len > data_size)
9017 if (tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]) {
9018 seq = nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ]);
9019 if (!rdev->wiphy.wowlan->tcp->seq)
9021 if (seq->len == 0 || seq->len > 4)
9023 if (seq->len + seq->offset > data_size)
9027 size = sizeof(*cfg);
9029 size += wake_size + wake_mask_size;
9030 size += tokens_size;
9032 cfg = kzalloc(size, GFP_KERNEL);
9035 cfg->src = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_SRC_IPV4]);
9036 cfg->dst = nla_get_in_addr(tb[NL80211_WOWLAN_TCP_DST_IPV4]);
9037 memcpy(cfg->dst_mac, nla_data(tb[NL80211_WOWLAN_TCP_DST_MAC]),
9039 if (tb[NL80211_WOWLAN_TCP_SRC_PORT])
9040 port = nla_get_u16(tb[NL80211_WOWLAN_TCP_SRC_PORT]);
9044 /* allocate a socket and port for it and use it */
9045 err = __sock_create(wiphy_net(&rdev->wiphy), PF_INET, SOCK_STREAM,
9046 IPPROTO_TCP, &cfg->sock, 1);
9051 if (inet_csk_get_port(cfg->sock->sk, port)) {
9052 sock_release(cfg->sock);
9056 cfg->src_port = inet_sk(cfg->sock->sk)->inet_num;
9062 cfg->src_port = port;
9065 cfg->dst_port = nla_get_u16(tb[NL80211_WOWLAN_TCP_DST_PORT]);
9066 cfg->payload_len = data_size;
9067 cfg->payload = (u8 *)cfg + sizeof(*cfg) + tokens_size;
9068 memcpy((void *)cfg->payload,
9069 nla_data(tb[NL80211_WOWLAN_TCP_DATA_PAYLOAD]),
9072 cfg->payload_seq = *seq;
9073 cfg->data_interval = nla_get_u32(tb[NL80211_WOWLAN_TCP_DATA_INTERVAL]);
9074 cfg->wake_len = wake_size;
9075 cfg->wake_data = (u8 *)cfg + sizeof(*cfg) + tokens_size + data_size;
9076 memcpy((void *)cfg->wake_data,
9077 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_PAYLOAD]),
9079 cfg->wake_mask = (u8 *)cfg + sizeof(*cfg) + tokens_size +
9080 data_size + wake_size;
9081 memcpy((void *)cfg->wake_mask,
9082 nla_data(tb[NL80211_WOWLAN_TCP_WAKE_MASK]),
9085 cfg->tokens_size = tokens_size;
9086 memcpy(&cfg->payload_tok, tok, sizeof(*tok) + tokens_size);
9094 static int nl80211_parse_wowlan_nd(struct cfg80211_registered_device *rdev,
9095 const struct wiphy_wowlan_support *wowlan,
9096 struct nlattr *attr,
9097 struct cfg80211_wowlan *trig)
9102 tb = kzalloc(NUM_NL80211_ATTR * sizeof(*tb), GFP_KERNEL);
9106 if (!(wowlan->flags & WIPHY_WOWLAN_NET_DETECT)) {
9111 err = nla_parse(tb, NL80211_ATTR_MAX,
9112 nla_data(attr), nla_len(attr),
9117 trig->nd_config = nl80211_parse_sched_scan(&rdev->wiphy, NULL, tb);
9118 err = PTR_ERR_OR_ZERO(trig->nd_config);
9120 trig->nd_config = NULL;
9127 static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
9129 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9130 struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
9131 struct cfg80211_wowlan new_triggers = {};
9132 struct cfg80211_wowlan *ntrig;
9133 const struct wiphy_wowlan_support *wowlan = rdev->wiphy.wowlan;
9135 bool prev_enabled = rdev->wiphy.wowlan_config;
9136 bool regular = false;
9141 if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
9142 cfg80211_rdev_free_wowlan(rdev);
9143 rdev->wiphy.wowlan_config = NULL;
9147 err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
9148 nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9149 nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
9150 nl80211_wowlan_policy);
9154 if (tb[NL80211_WOWLAN_TRIG_ANY]) {
9155 if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
9157 new_triggers.any = true;
9160 if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
9161 if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
9163 new_triggers.disconnect = true;
9167 if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
9168 if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
9170 new_triggers.magic_pkt = true;
9174 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
9177 if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
9178 if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
9180 new_triggers.gtk_rekey_failure = true;
9184 if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
9185 if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
9187 new_triggers.eap_identity_req = true;
9191 if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
9192 if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
9194 new_triggers.four_way_handshake = true;
9198 if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
9199 if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
9201 new_triggers.rfkill_release = true;
9205 if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
9208 int rem, pat_len, mask_len, pkt_offset;
9209 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9213 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9216 if (n_patterns > wowlan->n_patterns)
9219 new_triggers.patterns = kcalloc(n_patterns,
9220 sizeof(new_triggers.patterns[0]),
9222 if (!new_triggers.patterns)
9225 new_triggers.n_patterns = n_patterns;
9228 nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
9232 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9233 nla_len(pat), NULL);
9235 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9236 !pat_tb[NL80211_PKTPAT_PATTERN])
9238 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9239 mask_len = DIV_ROUND_UP(pat_len, 8);
9240 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9242 if (pat_len > wowlan->pattern_max_len ||
9243 pat_len < wowlan->pattern_min_len)
9246 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9249 pkt_offset = nla_get_u32(
9250 pat_tb[NL80211_PKTPAT_OFFSET]);
9251 if (pkt_offset > wowlan->max_pkt_offset)
9253 new_triggers.patterns[i].pkt_offset = pkt_offset;
9255 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9260 new_triggers.patterns[i].mask = mask_pat;
9261 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9263 mask_pat += mask_len;
9264 new_triggers.patterns[i].pattern = mask_pat;
9265 new_triggers.patterns[i].pattern_len = pat_len;
9267 nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9273 if (tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION]) {
9275 err = nl80211_parse_wowlan_tcp(
9276 rdev, tb[NL80211_WOWLAN_TRIG_TCP_CONNECTION],
9282 if (tb[NL80211_WOWLAN_TRIG_NET_DETECT]) {
9284 err = nl80211_parse_wowlan_nd(
9285 rdev, wowlan, tb[NL80211_WOWLAN_TRIG_NET_DETECT],
9291 /* The 'any' trigger means the device continues operating more or less
9292 * as in its normal operation mode and wakes up the host on most of the
9293 * normal interrupts (like packet RX, ...)
9294 * It therefore makes little sense to combine with the more constrained
9295 * wakeup trigger modes.
9297 if (new_triggers.any && regular) {
9302 ntrig = kmemdup(&new_triggers, sizeof(new_triggers), GFP_KERNEL);
9307 cfg80211_rdev_free_wowlan(rdev);
9308 rdev->wiphy.wowlan_config = ntrig;
9311 if (rdev->ops->set_wakeup &&
9312 prev_enabled != !!rdev->wiphy.wowlan_config)
9313 rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
9317 for (i = 0; i < new_triggers.n_patterns; i++)
9318 kfree(new_triggers.patterns[i].mask);
9319 kfree(new_triggers.patterns);
9320 if (new_triggers.tcp && new_triggers.tcp->sock)
9321 sock_release(new_triggers.tcp->sock);
9322 kfree(new_triggers.tcp);
9327 static int nl80211_send_coalesce_rules(struct sk_buff *msg,
9328 struct cfg80211_registered_device *rdev)
9330 struct nlattr *nl_pats, *nl_pat, *nl_rule, *nl_rules;
9332 struct cfg80211_coalesce_rules *rule;
9334 if (!rdev->coalesce->n_rules)
9337 nl_rules = nla_nest_start(msg, NL80211_ATTR_COALESCE_RULE);
9341 for (i = 0; i < rdev->coalesce->n_rules; i++) {
9342 nl_rule = nla_nest_start(msg, i + 1);
9346 rule = &rdev->coalesce->rules[i];
9347 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_DELAY,
9351 if (nla_put_u32(msg, NL80211_ATTR_COALESCE_RULE_CONDITION,
9355 nl_pats = nla_nest_start(msg,
9356 NL80211_ATTR_COALESCE_RULE_PKT_PATTERN);
9360 for (j = 0; j < rule->n_patterns; j++) {
9361 nl_pat = nla_nest_start(msg, j + 1);
9364 pat_len = rule->patterns[j].pattern_len;
9365 if (nla_put(msg, NL80211_PKTPAT_MASK,
9366 DIV_ROUND_UP(pat_len, 8),
9367 rule->patterns[j].mask) ||
9368 nla_put(msg, NL80211_PKTPAT_PATTERN, pat_len,
9369 rule->patterns[j].pattern) ||
9370 nla_put_u32(msg, NL80211_PKTPAT_OFFSET,
9371 rule->patterns[j].pkt_offset))
9373 nla_nest_end(msg, nl_pat);
9375 nla_nest_end(msg, nl_pats);
9376 nla_nest_end(msg, nl_rule);
9378 nla_nest_end(msg, nl_rules);
9383 static int nl80211_get_coalesce(struct sk_buff *skb, struct genl_info *info)
9385 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9386 struct sk_buff *msg;
9389 if (!rdev->wiphy.coalesce)
9392 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9396 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9397 NL80211_CMD_GET_COALESCE);
9399 goto nla_put_failure;
9401 if (rdev->coalesce && nl80211_send_coalesce_rules(msg, rdev))
9402 goto nla_put_failure;
9404 genlmsg_end(msg, hdr);
9405 return genlmsg_reply(msg, info);
9412 void cfg80211_rdev_free_coalesce(struct cfg80211_registered_device *rdev)
9414 struct cfg80211_coalesce *coalesce = rdev->coalesce;
9416 struct cfg80211_coalesce_rules *rule;
9421 for (i = 0; i < coalesce->n_rules; i++) {
9422 rule = &coalesce->rules[i];
9423 for (j = 0; j < rule->n_patterns; j++)
9424 kfree(rule->patterns[j].mask);
9425 kfree(rule->patterns);
9427 kfree(coalesce->rules);
9429 rdev->coalesce = NULL;
9432 static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
9433 struct nlattr *rule,
9434 struct cfg80211_coalesce_rules *new_rule)
9437 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9438 struct nlattr *tb[NUM_NL80211_ATTR_COALESCE_RULE], *pat;
9439 int rem, pat_len, mask_len, pkt_offset, n_patterns = 0;
9440 struct nlattr *pat_tb[NUM_NL80211_PKTPAT];
9442 err = nla_parse(tb, NL80211_ATTR_COALESCE_RULE_MAX, nla_data(rule),
9443 nla_len(rule), nl80211_coalesce_policy);
9447 if (tb[NL80211_ATTR_COALESCE_RULE_DELAY])
9449 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_DELAY]);
9450 if (new_rule->delay > coalesce->max_delay)
9453 if (tb[NL80211_ATTR_COALESCE_RULE_CONDITION])
9454 new_rule->condition =
9455 nla_get_u32(tb[NL80211_ATTR_COALESCE_RULE_CONDITION]);
9456 if (new_rule->condition != NL80211_COALESCE_CONDITION_MATCH &&
9457 new_rule->condition != NL80211_COALESCE_CONDITION_NO_MATCH)
9460 if (!tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN])
9463 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9466 if (n_patterns > coalesce->n_patterns)
9469 new_rule->patterns = kcalloc(n_patterns, sizeof(new_rule->patterns[0]),
9471 if (!new_rule->patterns)
9474 new_rule->n_patterns = n_patterns;
9477 nla_for_each_nested(pat, tb[NL80211_ATTR_COALESCE_RULE_PKT_PATTERN],
9481 nla_parse(pat_tb, MAX_NL80211_PKTPAT, nla_data(pat),
9482 nla_len(pat), NULL);
9483 if (!pat_tb[NL80211_PKTPAT_MASK] ||
9484 !pat_tb[NL80211_PKTPAT_PATTERN])
9486 pat_len = nla_len(pat_tb[NL80211_PKTPAT_PATTERN]);
9487 mask_len = DIV_ROUND_UP(pat_len, 8);
9488 if (nla_len(pat_tb[NL80211_PKTPAT_MASK]) != mask_len)
9490 if (pat_len > coalesce->pattern_max_len ||
9491 pat_len < coalesce->pattern_min_len)
9494 if (!pat_tb[NL80211_PKTPAT_OFFSET])
9497 pkt_offset = nla_get_u32(pat_tb[NL80211_PKTPAT_OFFSET]);
9498 if (pkt_offset > coalesce->max_pkt_offset)
9500 new_rule->patterns[i].pkt_offset = pkt_offset;
9502 mask_pat = kmalloc(mask_len + pat_len, GFP_KERNEL);
9506 new_rule->patterns[i].mask = mask_pat;
9507 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_MASK]),
9510 mask_pat += mask_len;
9511 new_rule->patterns[i].pattern = mask_pat;
9512 new_rule->patterns[i].pattern_len = pat_len;
9513 memcpy(mask_pat, nla_data(pat_tb[NL80211_PKTPAT_PATTERN]),
9521 static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info)
9523 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9524 const struct wiphy_coalesce_support *coalesce = rdev->wiphy.coalesce;
9525 struct cfg80211_coalesce new_coalesce = {};
9526 struct cfg80211_coalesce *n_coalesce;
9527 int err, rem_rule, n_rules = 0, i, j;
9528 struct nlattr *rule;
9529 struct cfg80211_coalesce_rules *tmp_rule;
9531 if (!rdev->wiphy.coalesce || !rdev->ops->set_coalesce)
9534 if (!info->attrs[NL80211_ATTR_COALESCE_RULE]) {
9535 cfg80211_rdev_free_coalesce(rdev);
9536 rdev->ops->set_coalesce(&rdev->wiphy, NULL);
9540 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9543 if (n_rules > coalesce->n_rules)
9546 new_coalesce.rules = kcalloc(n_rules, sizeof(new_coalesce.rules[0]),
9548 if (!new_coalesce.rules)
9551 new_coalesce.n_rules = n_rules;
9554 nla_for_each_nested(rule, info->attrs[NL80211_ATTR_COALESCE_RULE],
9556 err = nl80211_parse_coalesce_rule(rdev, rule,
9557 &new_coalesce.rules[i]);
9564 err = rdev->ops->set_coalesce(&rdev->wiphy, &new_coalesce);
9568 n_coalesce = kmemdup(&new_coalesce, sizeof(new_coalesce), GFP_KERNEL);
9573 cfg80211_rdev_free_coalesce(rdev);
9574 rdev->coalesce = n_coalesce;
9578 for (i = 0; i < new_coalesce.n_rules; i++) {
9579 tmp_rule = &new_coalesce.rules[i];
9580 for (j = 0; j < tmp_rule->n_patterns; j++)
9581 kfree(tmp_rule->patterns[j].mask);
9582 kfree(tmp_rule->patterns);
9584 kfree(new_coalesce.rules);
9589 static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
9591 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9592 struct net_device *dev = info->user_ptr[1];
9593 struct wireless_dev *wdev = dev->ieee80211_ptr;
9594 struct nlattr *tb[NUM_NL80211_REKEY_DATA];
9595 struct cfg80211_gtk_rekey_data rekey_data;
9598 if (!info->attrs[NL80211_ATTR_REKEY_DATA])
9601 err = nla_parse(tb, MAX_NL80211_REKEY_DATA,
9602 nla_data(info->attrs[NL80211_ATTR_REKEY_DATA]),
9603 nla_len(info->attrs[NL80211_ATTR_REKEY_DATA]),
9604 nl80211_rekey_policy);
9608 if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
9610 if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
9612 if (nla_len(tb[NL80211_REKEY_DATA_KCK]) != NL80211_KCK_LEN)
9615 rekey_data.kek = nla_data(tb[NL80211_REKEY_DATA_KEK]);
9616 rekey_data.kck = nla_data(tb[NL80211_REKEY_DATA_KCK]);
9617 rekey_data.replay_ctr = nla_data(tb[NL80211_REKEY_DATA_REPLAY_CTR]);
9620 if (!wdev->current_bss) {
9625 if (!rdev->ops->set_rekey_data) {
9630 err = rdev_set_rekey_data(rdev, dev, &rekey_data);
9636 static int nl80211_register_unexpected_frame(struct sk_buff *skb,
9637 struct genl_info *info)
9639 struct net_device *dev = info->user_ptr[1];
9640 struct wireless_dev *wdev = dev->ieee80211_ptr;
9642 if (wdev->iftype != NL80211_IFTYPE_AP &&
9643 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9646 if (wdev->ap_unexpected_nlportid)
9649 wdev->ap_unexpected_nlportid = info->snd_portid;
9653 static int nl80211_probe_client(struct sk_buff *skb,
9654 struct genl_info *info)
9656 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9657 struct net_device *dev = info->user_ptr[1];
9658 struct wireless_dev *wdev = dev->ieee80211_ptr;
9659 struct sk_buff *msg;
9665 if (wdev->iftype != NL80211_IFTYPE_AP &&
9666 wdev->iftype != NL80211_IFTYPE_P2P_GO)
9669 if (!info->attrs[NL80211_ATTR_MAC])
9672 if (!rdev->ops->probe_client)
9675 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9679 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9680 NL80211_CMD_PROBE_CLIENT);
9686 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
9688 err = rdev_probe_client(rdev, dev, addr, &cookie);
9692 if (nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
9693 goto nla_put_failure;
9695 genlmsg_end(msg, hdr);
9697 return genlmsg_reply(msg, info);
9706 static int nl80211_register_beacons(struct sk_buff *skb, struct genl_info *info)
9708 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9709 struct cfg80211_beacon_registration *reg, *nreg;
9712 if (!(rdev->wiphy.flags & WIPHY_FLAG_REPORTS_OBSS))
9715 nreg = kzalloc(sizeof(*nreg), GFP_KERNEL);
9719 /* First, check if already registered. */
9720 spin_lock_bh(&rdev->beacon_registrations_lock);
9721 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
9722 if (reg->nlportid == info->snd_portid) {
9727 /* Add it to the list */
9728 nreg->nlportid = info->snd_portid;
9729 list_add(&nreg->list, &rdev->beacon_registrations);
9731 spin_unlock_bh(&rdev->beacon_registrations_lock);
9735 spin_unlock_bh(&rdev->beacon_registrations_lock);
9740 static int nl80211_start_p2p_device(struct sk_buff *skb, struct genl_info *info)
9742 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9743 struct wireless_dev *wdev = info->user_ptr[1];
9746 if (!rdev->ops->start_p2p_device)
9749 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9752 if (wdev->p2p_started)
9755 if (rfkill_blocked(rdev->rfkill))
9758 err = rdev_start_p2p_device(rdev, wdev);
9762 wdev->p2p_started = true;
9768 static int nl80211_stop_p2p_device(struct sk_buff *skb, struct genl_info *info)
9770 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9771 struct wireless_dev *wdev = info->user_ptr[1];
9773 if (wdev->iftype != NL80211_IFTYPE_P2P_DEVICE)
9776 if (!rdev->ops->stop_p2p_device)
9779 cfg80211_stop_p2p_device(rdev, wdev);
9784 static int nl80211_get_protocol_features(struct sk_buff *skb,
9785 struct genl_info *info)
9788 struct sk_buff *msg;
9790 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
9794 hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
9795 NL80211_CMD_GET_PROTOCOL_FEATURES);
9797 goto nla_put_failure;
9799 if (nla_put_u32(msg, NL80211_ATTR_PROTOCOL_FEATURES,
9800 NL80211_PROTOCOL_FEATURE_SPLIT_WIPHY_DUMP))
9801 goto nla_put_failure;
9803 genlmsg_end(msg, hdr);
9804 return genlmsg_reply(msg, info);
9811 static int nl80211_update_ft_ies(struct sk_buff *skb, struct genl_info *info)
9813 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9814 struct cfg80211_update_ft_ies_params ft_params;
9815 struct net_device *dev = info->user_ptr[1];
9817 if (!rdev->ops->update_ft_ies)
9820 if (!info->attrs[NL80211_ATTR_MDID] ||
9821 !is_valid_ie_attr(info->attrs[NL80211_ATTR_IE]))
9824 memset(&ft_params, 0, sizeof(ft_params));
9825 ft_params.md = nla_get_u16(info->attrs[NL80211_ATTR_MDID]);
9826 ft_params.ie = nla_data(info->attrs[NL80211_ATTR_IE]);
9827 ft_params.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
9829 return rdev_update_ft_ies(rdev, dev, &ft_params);
9832 static int nl80211_crit_protocol_start(struct sk_buff *skb,
9833 struct genl_info *info)
9835 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9836 struct wireless_dev *wdev = info->user_ptr[1];
9837 enum nl80211_crit_proto_id proto = NL80211_CRIT_PROTO_UNSPEC;
9841 if (!rdev->ops->crit_proto_start)
9844 if (WARN_ON(!rdev->ops->crit_proto_stop))
9847 if (rdev->crit_proto_nlportid)
9850 /* determine protocol if provided */
9851 if (info->attrs[NL80211_ATTR_CRIT_PROT_ID])
9852 proto = nla_get_u16(info->attrs[NL80211_ATTR_CRIT_PROT_ID]);
9854 if (proto >= NUM_NL80211_CRIT_PROTO)
9857 /* timeout must be provided */
9858 if (!info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION])
9862 nla_get_u16(info->attrs[NL80211_ATTR_MAX_CRIT_PROT_DURATION]);
9864 if (duration > NL80211_CRIT_PROTO_MAX_DURATION)
9867 ret = rdev_crit_proto_start(rdev, wdev, proto, duration);
9869 rdev->crit_proto_nlportid = info->snd_portid;
9874 static int nl80211_crit_protocol_stop(struct sk_buff *skb,
9875 struct genl_info *info)
9877 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9878 struct wireless_dev *wdev = info->user_ptr[1];
9880 if (!rdev->ops->crit_proto_stop)
9883 if (rdev->crit_proto_nlportid) {
9884 rdev->crit_proto_nlportid = 0;
9885 rdev_crit_proto_stop(rdev, wdev);
9890 static int nl80211_vendor_cmd(struct sk_buff *skb, struct genl_info *info)
9892 struct cfg80211_registered_device *rdev = info->user_ptr[0];
9893 struct wireless_dev *wdev =
9894 __cfg80211_wdev_from_attrs(genl_info_net(info), info->attrs);
9898 if (!rdev->wiphy.vendor_commands)
9902 err = PTR_ERR(wdev);
9906 } else if (wdev->wiphy != &rdev->wiphy) {
9910 if (!info->attrs[NL80211_ATTR_VENDOR_ID] ||
9911 !info->attrs[NL80211_ATTR_VENDOR_SUBCMD])
9914 vid = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_ID]);
9915 subcmd = nla_get_u32(info->attrs[NL80211_ATTR_VENDOR_SUBCMD]);
9916 for (i = 0; i < rdev->wiphy.n_vendor_commands; i++) {
9917 const struct wiphy_vendor_command *vcmd;
9921 vcmd = &rdev->wiphy.vendor_commands[i];
9923 if (vcmd->info.vendor_id != vid || vcmd->info.subcmd != subcmd)
9926 if (vcmd->flags & (WIPHY_VENDOR_CMD_NEED_WDEV |
9927 WIPHY_VENDOR_CMD_NEED_NETDEV)) {
9930 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_NETDEV &&
9934 if (vcmd->flags & WIPHY_VENDOR_CMD_NEED_RUNNING) {
9936 !netif_running(wdev->netdev))
9938 if (!wdev->netdev && !wdev->p2p_started)
9945 if (info->attrs[NL80211_ATTR_VENDOR_DATA]) {
9946 data = nla_data(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9947 len = nla_len(info->attrs[NL80211_ATTR_VENDOR_DATA]);
9950 rdev->cur_cmd_info = info;
9951 err = rdev->wiphy.vendor_commands[i].doit(&rdev->wiphy, wdev,
9953 rdev->cur_cmd_info = NULL;
9960 struct sk_buff *__cfg80211_alloc_reply_skb(struct wiphy *wiphy,
9961 enum nl80211_commands cmd,
9962 enum nl80211_attrs attr,
9965 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
9967 if (WARN_ON(!rdev->cur_cmd_info))
9970 return __cfg80211_alloc_vendor_skb(rdev, NULL, approxlen,
9971 rdev->cur_cmd_info->snd_portid,
9972 rdev->cur_cmd_info->snd_seq,
9973 cmd, attr, NULL, GFP_KERNEL);
9975 EXPORT_SYMBOL(__cfg80211_alloc_reply_skb);
9977 int cfg80211_vendor_cmd_reply(struct sk_buff *skb)
9979 struct cfg80211_registered_device *rdev = ((void **)skb->cb)[0];
9980 void *hdr = ((void **)skb->cb)[1];
9981 struct nlattr *data = ((void **)skb->cb)[2];
9983 /* clear CB data for netlink core to own from now on */
9984 memset(skb->cb, 0, sizeof(skb->cb));
9986 if (WARN_ON(!rdev->cur_cmd_info)) {
9991 nla_nest_end(skb, data);
9992 genlmsg_end(skb, hdr);
9993 return genlmsg_reply(skb, rdev->cur_cmd_info);
9995 EXPORT_SYMBOL_GPL(cfg80211_vendor_cmd_reply);
9998 static int nl80211_set_qos_map(struct sk_buff *skb,
9999 struct genl_info *info)
10001 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10002 struct cfg80211_qos_map *qos_map = NULL;
10003 struct net_device *dev = info->user_ptr[1];
10004 u8 *pos, len, num_des, des_len, des;
10007 if (!rdev->ops->set_qos_map)
10008 return -EOPNOTSUPP;
10010 if (info->attrs[NL80211_ATTR_QOS_MAP]) {
10011 pos = nla_data(info->attrs[NL80211_ATTR_QOS_MAP]);
10012 len = nla_len(info->attrs[NL80211_ATTR_QOS_MAP]);
10014 if (len % 2 || len < IEEE80211_QOS_MAP_LEN_MIN ||
10015 len > IEEE80211_QOS_MAP_LEN_MAX)
10018 qos_map = kzalloc(sizeof(struct cfg80211_qos_map), GFP_KERNEL);
10022 num_des = (len - IEEE80211_QOS_MAP_LEN_MIN) >> 1;
10024 des_len = num_des *
10025 sizeof(struct cfg80211_dscp_exception);
10026 memcpy(qos_map->dscp_exception, pos, des_len);
10027 qos_map->num_des = num_des;
10028 for (des = 0; des < num_des; des++) {
10029 if (qos_map->dscp_exception[des].up > 7) {
10036 memcpy(qos_map->up, pos, IEEE80211_QOS_MAP_LEN_MIN);
10039 wdev_lock(dev->ieee80211_ptr);
10040 ret = nl80211_key_allowed(dev->ieee80211_ptr);
10042 ret = rdev_set_qos_map(rdev, dev, qos_map);
10043 wdev_unlock(dev->ieee80211_ptr);
10049 static int nl80211_add_tx_ts(struct sk_buff *skb, struct genl_info *info)
10051 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10052 struct net_device *dev = info->user_ptr[1];
10053 struct wireless_dev *wdev = dev->ieee80211_ptr;
10056 u16 admitted_time = 0;
10059 if (!(rdev->wiphy.features & NL80211_FEATURE_SUPPORTS_WMM_ADMISSION))
10060 return -EOPNOTSUPP;
10062 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC] ||
10063 !info->attrs[NL80211_ATTR_USER_PRIO])
10066 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10067 if (tsid >= IEEE80211_NUM_TIDS)
10070 up = nla_get_u8(info->attrs[NL80211_ATTR_USER_PRIO]);
10071 if (up >= IEEE80211_NUM_UPS)
10074 /* WMM uses TIDs 0-7 even for TSPEC */
10075 if (tsid >= IEEE80211_FIRST_TSPEC_TSID) {
10076 /* TODO: handle 802.11 TSPEC/admission control
10077 * need more attributes for that (e.g. BA session requirement);
10078 * change the WMM adminssion test above to allow both then
10083 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10085 if (info->attrs[NL80211_ATTR_ADMITTED_TIME]) {
10087 nla_get_u16(info->attrs[NL80211_ATTR_ADMITTED_TIME]);
10088 if (!admitted_time)
10093 switch (wdev->iftype) {
10094 case NL80211_IFTYPE_STATION:
10095 case NL80211_IFTYPE_P2P_CLIENT:
10096 if (wdev->current_bss)
10105 err = rdev_add_tx_ts(rdev, dev, tsid, peer, up, admitted_time);
10112 static int nl80211_del_tx_ts(struct sk_buff *skb, struct genl_info *info)
10114 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10115 struct net_device *dev = info->user_ptr[1];
10116 struct wireless_dev *wdev = dev->ieee80211_ptr;
10121 if (!info->attrs[NL80211_ATTR_TSID] || !info->attrs[NL80211_ATTR_MAC])
10124 tsid = nla_get_u8(info->attrs[NL80211_ATTR_TSID]);
10125 peer = nla_data(info->attrs[NL80211_ATTR_MAC]);
10128 err = rdev_del_tx_ts(rdev, dev, tsid, peer);
10134 static int nl80211_tdls_channel_switch(struct sk_buff *skb,
10135 struct genl_info *info)
10137 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10138 struct net_device *dev = info->user_ptr[1];
10139 struct wireless_dev *wdev = dev->ieee80211_ptr;
10140 struct cfg80211_chan_def chandef = {};
10145 if (!rdev->ops->tdls_channel_switch ||
10146 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10147 return -EOPNOTSUPP;
10149 switch (dev->ieee80211_ptr->iftype) {
10150 case NL80211_IFTYPE_STATION:
10151 case NL80211_IFTYPE_P2P_CLIENT:
10154 return -EOPNOTSUPP;
10157 if (!info->attrs[NL80211_ATTR_MAC] ||
10158 !info->attrs[NL80211_ATTR_OPER_CLASS])
10161 err = nl80211_parse_chandef(rdev, info, &chandef);
10166 * Don't allow wide channels on the 2.4Ghz band, as per IEEE802.11-2012
10167 * section 10.22.6.2.1. Disallow 5/10Mhz channels as well for now, the
10168 * specification is not defined for them.
10170 if (chandef.chan->band == IEEE80211_BAND_2GHZ &&
10171 chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
10172 chandef.width != NL80211_CHAN_WIDTH_20)
10175 /* we will be active on the TDLS link */
10176 if (!cfg80211_reg_can_beacon_relax(&rdev->wiphy, &chandef,
10180 /* don't allow switching to DFS channels */
10181 if (cfg80211_chandef_dfs_required(wdev->wiphy, &chandef, wdev->iftype))
10184 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10185 oper_class = nla_get_u8(info->attrs[NL80211_ATTR_OPER_CLASS]);
10188 err = rdev_tdls_channel_switch(rdev, dev, addr, oper_class, &chandef);
10194 static int nl80211_tdls_cancel_channel_switch(struct sk_buff *skb,
10195 struct genl_info *info)
10197 struct cfg80211_registered_device *rdev = info->user_ptr[0];
10198 struct net_device *dev = info->user_ptr[1];
10199 struct wireless_dev *wdev = dev->ieee80211_ptr;
10202 if (!rdev->ops->tdls_channel_switch ||
10203 !rdev->ops->tdls_cancel_channel_switch ||
10204 !(rdev->wiphy.features & NL80211_FEATURE_TDLS_CHANNEL_SWITCH))
10205 return -EOPNOTSUPP;
10207 switch (dev->ieee80211_ptr->iftype) {
10208 case NL80211_IFTYPE_STATION:
10209 case NL80211_IFTYPE_P2P_CLIENT:
10212 return -EOPNOTSUPP;
10215 if (!info->attrs[NL80211_ATTR_MAC])
10218 addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
10221 rdev_tdls_cancel_channel_switch(rdev, dev, addr);
10227 #define NL80211_FLAG_NEED_WIPHY 0x01
10228 #define NL80211_FLAG_NEED_NETDEV 0x02
10229 #define NL80211_FLAG_NEED_RTNL 0x04
10230 #define NL80211_FLAG_CHECK_NETDEV_UP 0x08
10231 #define NL80211_FLAG_NEED_NETDEV_UP (NL80211_FLAG_NEED_NETDEV |\
10232 NL80211_FLAG_CHECK_NETDEV_UP)
10233 #define NL80211_FLAG_NEED_WDEV 0x10
10234 /* If a netdev is associated, it must be UP, P2P must be started */
10235 #define NL80211_FLAG_NEED_WDEV_UP (NL80211_FLAG_NEED_WDEV |\
10236 NL80211_FLAG_CHECK_NETDEV_UP)
10237 #define NL80211_FLAG_CLEAR_SKB 0x20
10239 static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
10240 struct genl_info *info)
10242 struct cfg80211_registered_device *rdev;
10243 struct wireless_dev *wdev;
10244 struct net_device *dev;
10245 bool rtnl = ops->internal_flags & NL80211_FLAG_NEED_RTNL;
10250 if (ops->internal_flags & NL80211_FLAG_NEED_WIPHY) {
10251 rdev = cfg80211_get_dev_from_info(genl_info_net(info), info);
10252 if (IS_ERR(rdev)) {
10255 return PTR_ERR(rdev);
10257 info->user_ptr[0] = rdev;
10258 } else if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV ||
10259 ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10262 wdev = __cfg80211_wdev_from_attrs(genl_info_net(info),
10264 if (IS_ERR(wdev)) {
10267 return PTR_ERR(wdev);
10270 dev = wdev->netdev;
10271 rdev = wiphy_to_rdev(wdev->wiphy);
10273 if (ops->internal_flags & NL80211_FLAG_NEED_NETDEV) {
10280 info->user_ptr[1] = dev;
10282 info->user_ptr[1] = wdev;
10286 if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP &&
10287 !netif_running(dev)) {
10294 } else if (ops->internal_flags & NL80211_FLAG_CHECK_NETDEV_UP) {
10295 if (!wdev->p2p_started) {
10302 info->user_ptr[0] = rdev;
10308 static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
10309 struct genl_info *info)
10311 if (info->user_ptr[1]) {
10312 if (ops->internal_flags & NL80211_FLAG_NEED_WDEV) {
10313 struct wireless_dev *wdev = info->user_ptr[1];
10316 dev_put(wdev->netdev);
10318 dev_put(info->user_ptr[1]);
10322 if (ops->internal_flags & NL80211_FLAG_NEED_RTNL)
10325 /* If needed, clear the netlink message payload from the SKB
10326 * as it might contain key data that shouldn't stick around on
10327 * the heap after the SKB is freed. The netlink message header
10328 * is still needed for further processing, so leave it intact.
10330 if (ops->internal_flags & NL80211_FLAG_CLEAR_SKB) {
10331 struct nlmsghdr *nlh = nlmsg_hdr(skb);
10333 memset(nlmsg_data(nlh), 0, nlmsg_len(nlh));
10337 static const struct genl_ops nl80211_ops[] = {
10339 .cmd = NL80211_CMD_GET_WIPHY,
10340 .doit = nl80211_get_wiphy,
10341 .dumpit = nl80211_dump_wiphy,
10342 .done = nl80211_dump_wiphy_done,
10343 .policy = nl80211_policy,
10344 /* can be retrieved by unprivileged users */
10345 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10346 NL80211_FLAG_NEED_RTNL,
10349 .cmd = NL80211_CMD_SET_WIPHY,
10350 .doit = nl80211_set_wiphy,
10351 .policy = nl80211_policy,
10352 .flags = GENL_ADMIN_PERM,
10353 .internal_flags = NL80211_FLAG_NEED_RTNL,
10356 .cmd = NL80211_CMD_GET_INTERFACE,
10357 .doit = nl80211_get_interface,
10358 .dumpit = nl80211_dump_interface,
10359 .policy = nl80211_policy,
10360 /* can be retrieved by unprivileged users */
10361 .internal_flags = NL80211_FLAG_NEED_WDEV |
10362 NL80211_FLAG_NEED_RTNL,
10365 .cmd = NL80211_CMD_SET_INTERFACE,
10366 .doit = nl80211_set_interface,
10367 .policy = nl80211_policy,
10368 .flags = GENL_ADMIN_PERM,
10369 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10370 NL80211_FLAG_NEED_RTNL,
10373 .cmd = NL80211_CMD_NEW_INTERFACE,
10374 .doit = nl80211_new_interface,
10375 .policy = nl80211_policy,
10376 .flags = GENL_ADMIN_PERM,
10377 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10378 NL80211_FLAG_NEED_RTNL,
10381 .cmd = NL80211_CMD_DEL_INTERFACE,
10382 .doit = nl80211_del_interface,
10383 .policy = nl80211_policy,
10384 .flags = GENL_ADMIN_PERM,
10385 .internal_flags = NL80211_FLAG_NEED_WDEV |
10386 NL80211_FLAG_NEED_RTNL,
10389 .cmd = NL80211_CMD_GET_KEY,
10390 .doit = nl80211_get_key,
10391 .policy = nl80211_policy,
10392 .flags = GENL_ADMIN_PERM,
10393 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10394 NL80211_FLAG_NEED_RTNL,
10397 .cmd = NL80211_CMD_SET_KEY,
10398 .doit = nl80211_set_key,
10399 .policy = nl80211_policy,
10400 .flags = GENL_ADMIN_PERM,
10401 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10402 NL80211_FLAG_NEED_RTNL |
10403 NL80211_FLAG_CLEAR_SKB,
10406 .cmd = NL80211_CMD_NEW_KEY,
10407 .doit = nl80211_new_key,
10408 .policy = nl80211_policy,
10409 .flags = GENL_ADMIN_PERM,
10410 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10411 NL80211_FLAG_NEED_RTNL |
10412 NL80211_FLAG_CLEAR_SKB,
10415 .cmd = NL80211_CMD_DEL_KEY,
10416 .doit = nl80211_del_key,
10417 .policy = nl80211_policy,
10418 .flags = GENL_ADMIN_PERM,
10419 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10420 NL80211_FLAG_NEED_RTNL,
10423 .cmd = NL80211_CMD_SET_BEACON,
10424 .policy = nl80211_policy,
10425 .flags = GENL_ADMIN_PERM,
10426 .doit = nl80211_set_beacon,
10427 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10428 NL80211_FLAG_NEED_RTNL,
10431 .cmd = NL80211_CMD_START_AP,
10432 .policy = nl80211_policy,
10433 .flags = GENL_ADMIN_PERM,
10434 .doit = nl80211_start_ap,
10435 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10436 NL80211_FLAG_NEED_RTNL,
10439 .cmd = NL80211_CMD_STOP_AP,
10440 .policy = nl80211_policy,
10441 .flags = GENL_ADMIN_PERM,
10442 .doit = nl80211_stop_ap,
10443 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10444 NL80211_FLAG_NEED_RTNL,
10447 .cmd = NL80211_CMD_GET_STATION,
10448 .doit = nl80211_get_station,
10449 .dumpit = nl80211_dump_station,
10450 .policy = nl80211_policy,
10451 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10452 NL80211_FLAG_NEED_RTNL,
10455 .cmd = NL80211_CMD_SET_STATION,
10456 .doit = nl80211_set_station,
10457 .policy = nl80211_policy,
10458 .flags = GENL_ADMIN_PERM,
10459 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10460 NL80211_FLAG_NEED_RTNL,
10463 .cmd = NL80211_CMD_NEW_STATION,
10464 .doit = nl80211_new_station,
10465 .policy = nl80211_policy,
10466 .flags = GENL_ADMIN_PERM,
10467 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10468 NL80211_FLAG_NEED_RTNL,
10471 .cmd = NL80211_CMD_DEL_STATION,
10472 .doit = nl80211_del_station,
10473 .policy = nl80211_policy,
10474 .flags = GENL_ADMIN_PERM,
10475 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10476 NL80211_FLAG_NEED_RTNL,
10479 .cmd = NL80211_CMD_GET_MPATH,
10480 .doit = nl80211_get_mpath,
10481 .dumpit = nl80211_dump_mpath,
10482 .policy = nl80211_policy,
10483 .flags = GENL_ADMIN_PERM,
10484 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10485 NL80211_FLAG_NEED_RTNL,
10488 .cmd = NL80211_CMD_GET_MPP,
10489 .doit = nl80211_get_mpp,
10490 .dumpit = nl80211_dump_mpp,
10491 .policy = nl80211_policy,
10492 .flags = GENL_ADMIN_PERM,
10493 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10494 NL80211_FLAG_NEED_RTNL,
10497 .cmd = NL80211_CMD_SET_MPATH,
10498 .doit = nl80211_set_mpath,
10499 .policy = nl80211_policy,
10500 .flags = GENL_ADMIN_PERM,
10501 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10502 NL80211_FLAG_NEED_RTNL,
10505 .cmd = NL80211_CMD_NEW_MPATH,
10506 .doit = nl80211_new_mpath,
10507 .policy = nl80211_policy,
10508 .flags = GENL_ADMIN_PERM,
10509 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10510 NL80211_FLAG_NEED_RTNL,
10513 .cmd = NL80211_CMD_DEL_MPATH,
10514 .doit = nl80211_del_mpath,
10515 .policy = nl80211_policy,
10516 .flags = GENL_ADMIN_PERM,
10517 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10518 NL80211_FLAG_NEED_RTNL,
10521 .cmd = NL80211_CMD_SET_BSS,
10522 .doit = nl80211_set_bss,
10523 .policy = nl80211_policy,
10524 .flags = GENL_ADMIN_PERM,
10525 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10526 NL80211_FLAG_NEED_RTNL,
10529 .cmd = NL80211_CMD_GET_REG,
10530 .doit = nl80211_get_reg_do,
10531 .dumpit = nl80211_get_reg_dump,
10532 .policy = nl80211_policy,
10533 .internal_flags = NL80211_FLAG_NEED_RTNL,
10534 /* can be retrieved by unprivileged users */
10537 .cmd = NL80211_CMD_SET_REG,
10538 .doit = nl80211_set_reg,
10539 .policy = nl80211_policy,
10540 .flags = GENL_ADMIN_PERM,
10541 .internal_flags = NL80211_FLAG_NEED_RTNL,
10544 .cmd = NL80211_CMD_REQ_SET_REG,
10545 .doit = nl80211_req_set_reg,
10546 .policy = nl80211_policy,
10547 .flags = GENL_ADMIN_PERM,
10550 .cmd = NL80211_CMD_GET_MESH_CONFIG,
10551 .doit = nl80211_get_mesh_config,
10552 .policy = nl80211_policy,
10553 /* can be retrieved by unprivileged users */
10554 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10555 NL80211_FLAG_NEED_RTNL,
10558 .cmd = NL80211_CMD_SET_MESH_CONFIG,
10559 .doit = nl80211_update_mesh_config,
10560 .policy = nl80211_policy,
10561 .flags = GENL_ADMIN_PERM,
10562 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10563 NL80211_FLAG_NEED_RTNL,
10566 .cmd = NL80211_CMD_TRIGGER_SCAN,
10567 .doit = nl80211_trigger_scan,
10568 .policy = nl80211_policy,
10569 .flags = GENL_ADMIN_PERM,
10570 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10571 NL80211_FLAG_NEED_RTNL,
10574 .cmd = NL80211_CMD_GET_SCAN,
10575 .policy = nl80211_policy,
10576 .dumpit = nl80211_dump_scan,
10579 .cmd = NL80211_CMD_START_SCHED_SCAN,
10580 .doit = nl80211_start_sched_scan,
10581 .policy = nl80211_policy,
10582 .flags = GENL_ADMIN_PERM,
10583 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10584 NL80211_FLAG_NEED_RTNL,
10587 .cmd = NL80211_CMD_STOP_SCHED_SCAN,
10588 .doit = nl80211_stop_sched_scan,
10589 .policy = nl80211_policy,
10590 .flags = GENL_ADMIN_PERM,
10591 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10592 NL80211_FLAG_NEED_RTNL,
10595 .cmd = NL80211_CMD_AUTHENTICATE,
10596 .doit = nl80211_authenticate,
10597 .policy = nl80211_policy,
10598 .flags = GENL_ADMIN_PERM,
10599 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10600 NL80211_FLAG_NEED_RTNL |
10601 NL80211_FLAG_CLEAR_SKB,
10604 .cmd = NL80211_CMD_ASSOCIATE,
10605 .doit = nl80211_associate,
10606 .policy = nl80211_policy,
10607 .flags = GENL_ADMIN_PERM,
10608 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10609 NL80211_FLAG_NEED_RTNL,
10612 .cmd = NL80211_CMD_DEAUTHENTICATE,
10613 .doit = nl80211_deauthenticate,
10614 .policy = nl80211_policy,
10615 .flags = GENL_ADMIN_PERM,
10616 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10617 NL80211_FLAG_NEED_RTNL,
10620 .cmd = NL80211_CMD_DISASSOCIATE,
10621 .doit = nl80211_disassociate,
10622 .policy = nl80211_policy,
10623 .flags = GENL_ADMIN_PERM,
10624 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10625 NL80211_FLAG_NEED_RTNL,
10628 .cmd = NL80211_CMD_JOIN_IBSS,
10629 .doit = nl80211_join_ibss,
10630 .policy = nl80211_policy,
10631 .flags = GENL_ADMIN_PERM,
10632 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10633 NL80211_FLAG_NEED_RTNL,
10636 .cmd = NL80211_CMD_LEAVE_IBSS,
10637 .doit = nl80211_leave_ibss,
10638 .policy = nl80211_policy,
10639 .flags = GENL_ADMIN_PERM,
10640 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10641 NL80211_FLAG_NEED_RTNL,
10643 #ifdef CONFIG_NL80211_TESTMODE
10645 .cmd = NL80211_CMD_TESTMODE,
10646 .doit = nl80211_testmode_do,
10647 .dumpit = nl80211_testmode_dump,
10648 .policy = nl80211_policy,
10649 .flags = GENL_ADMIN_PERM,
10650 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10651 NL80211_FLAG_NEED_RTNL,
10655 .cmd = NL80211_CMD_CONNECT,
10656 .doit = nl80211_connect,
10657 .policy = nl80211_policy,
10658 .flags = GENL_ADMIN_PERM,
10659 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10660 NL80211_FLAG_NEED_RTNL,
10663 .cmd = NL80211_CMD_DISCONNECT,
10664 .doit = nl80211_disconnect,
10665 .policy = nl80211_policy,
10666 .flags = GENL_ADMIN_PERM,
10667 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10668 NL80211_FLAG_NEED_RTNL,
10671 .cmd = NL80211_CMD_SET_WIPHY_NETNS,
10672 .doit = nl80211_wiphy_netns,
10673 .policy = nl80211_policy,
10674 .flags = GENL_ADMIN_PERM,
10675 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10676 NL80211_FLAG_NEED_RTNL,
10679 .cmd = NL80211_CMD_GET_SURVEY,
10680 .policy = nl80211_policy,
10681 .dumpit = nl80211_dump_survey,
10684 .cmd = NL80211_CMD_SET_PMKSA,
10685 .doit = nl80211_setdel_pmksa,
10686 .policy = nl80211_policy,
10687 .flags = GENL_ADMIN_PERM,
10688 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10689 NL80211_FLAG_NEED_RTNL,
10692 .cmd = NL80211_CMD_DEL_PMKSA,
10693 .doit = nl80211_setdel_pmksa,
10694 .policy = nl80211_policy,
10695 .flags = GENL_ADMIN_PERM,
10696 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10697 NL80211_FLAG_NEED_RTNL,
10700 .cmd = NL80211_CMD_FLUSH_PMKSA,
10701 .doit = nl80211_flush_pmksa,
10702 .policy = nl80211_policy,
10703 .flags = GENL_ADMIN_PERM,
10704 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10705 NL80211_FLAG_NEED_RTNL,
10708 .cmd = NL80211_CMD_REMAIN_ON_CHANNEL,
10709 .doit = nl80211_remain_on_channel,
10710 .policy = nl80211_policy,
10711 .flags = GENL_ADMIN_PERM,
10712 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10713 NL80211_FLAG_NEED_RTNL,
10716 .cmd = NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
10717 .doit = nl80211_cancel_remain_on_channel,
10718 .policy = nl80211_policy,
10719 .flags = GENL_ADMIN_PERM,
10720 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10721 NL80211_FLAG_NEED_RTNL,
10724 .cmd = NL80211_CMD_SET_TX_BITRATE_MASK,
10725 .doit = nl80211_set_tx_bitrate_mask,
10726 .policy = nl80211_policy,
10727 .flags = GENL_ADMIN_PERM,
10728 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10729 NL80211_FLAG_NEED_RTNL,
10732 .cmd = NL80211_CMD_REGISTER_FRAME,
10733 .doit = nl80211_register_mgmt,
10734 .policy = nl80211_policy,
10735 .flags = GENL_ADMIN_PERM,
10736 .internal_flags = NL80211_FLAG_NEED_WDEV |
10737 NL80211_FLAG_NEED_RTNL,
10740 .cmd = NL80211_CMD_FRAME,
10741 .doit = nl80211_tx_mgmt,
10742 .policy = nl80211_policy,
10743 .flags = GENL_ADMIN_PERM,
10744 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10745 NL80211_FLAG_NEED_RTNL,
10748 .cmd = NL80211_CMD_FRAME_WAIT_CANCEL,
10749 .doit = nl80211_tx_mgmt_cancel_wait,
10750 .policy = nl80211_policy,
10751 .flags = GENL_ADMIN_PERM,
10752 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10753 NL80211_FLAG_NEED_RTNL,
10756 .cmd = NL80211_CMD_SET_POWER_SAVE,
10757 .doit = nl80211_set_power_save,
10758 .policy = nl80211_policy,
10759 .flags = GENL_ADMIN_PERM,
10760 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10761 NL80211_FLAG_NEED_RTNL,
10764 .cmd = NL80211_CMD_GET_POWER_SAVE,
10765 .doit = nl80211_get_power_save,
10766 .policy = nl80211_policy,
10767 /* can be retrieved by unprivileged users */
10768 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10769 NL80211_FLAG_NEED_RTNL,
10772 .cmd = NL80211_CMD_SET_CQM,
10773 .doit = nl80211_set_cqm,
10774 .policy = nl80211_policy,
10775 .flags = GENL_ADMIN_PERM,
10776 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10777 NL80211_FLAG_NEED_RTNL,
10780 .cmd = NL80211_CMD_SET_CHANNEL,
10781 .doit = nl80211_set_channel,
10782 .policy = nl80211_policy,
10783 .flags = GENL_ADMIN_PERM,
10784 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10785 NL80211_FLAG_NEED_RTNL,
10788 .cmd = NL80211_CMD_SET_WDS_PEER,
10789 .doit = nl80211_set_wds_peer,
10790 .policy = nl80211_policy,
10791 .flags = GENL_ADMIN_PERM,
10792 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10793 NL80211_FLAG_NEED_RTNL,
10796 .cmd = NL80211_CMD_JOIN_MESH,
10797 .doit = nl80211_join_mesh,
10798 .policy = nl80211_policy,
10799 .flags = GENL_ADMIN_PERM,
10800 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10801 NL80211_FLAG_NEED_RTNL,
10804 .cmd = NL80211_CMD_LEAVE_MESH,
10805 .doit = nl80211_leave_mesh,
10806 .policy = nl80211_policy,
10807 .flags = GENL_ADMIN_PERM,
10808 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10809 NL80211_FLAG_NEED_RTNL,
10812 .cmd = NL80211_CMD_JOIN_OCB,
10813 .doit = nl80211_join_ocb,
10814 .policy = nl80211_policy,
10815 .flags = GENL_ADMIN_PERM,
10816 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10817 NL80211_FLAG_NEED_RTNL,
10820 .cmd = NL80211_CMD_LEAVE_OCB,
10821 .doit = nl80211_leave_ocb,
10822 .policy = nl80211_policy,
10823 .flags = GENL_ADMIN_PERM,
10824 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10825 NL80211_FLAG_NEED_RTNL,
10829 .cmd = NL80211_CMD_GET_WOWLAN,
10830 .doit = nl80211_get_wowlan,
10831 .policy = nl80211_policy,
10832 /* can be retrieved by unprivileged users */
10833 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10834 NL80211_FLAG_NEED_RTNL,
10837 .cmd = NL80211_CMD_SET_WOWLAN,
10838 .doit = nl80211_set_wowlan,
10839 .policy = nl80211_policy,
10840 .flags = GENL_ADMIN_PERM,
10841 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10842 NL80211_FLAG_NEED_RTNL,
10846 .cmd = NL80211_CMD_SET_REKEY_OFFLOAD,
10847 .doit = nl80211_set_rekey_data,
10848 .policy = nl80211_policy,
10849 .flags = GENL_ADMIN_PERM,
10850 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10851 NL80211_FLAG_NEED_RTNL |
10852 NL80211_FLAG_CLEAR_SKB,
10855 .cmd = NL80211_CMD_TDLS_MGMT,
10856 .doit = nl80211_tdls_mgmt,
10857 .policy = nl80211_policy,
10858 .flags = GENL_ADMIN_PERM,
10859 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10860 NL80211_FLAG_NEED_RTNL,
10863 .cmd = NL80211_CMD_TDLS_OPER,
10864 .doit = nl80211_tdls_oper,
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_UNEXPECTED_FRAME,
10872 .doit = nl80211_register_unexpected_frame,
10873 .policy = nl80211_policy,
10874 .flags = GENL_ADMIN_PERM,
10875 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10876 NL80211_FLAG_NEED_RTNL,
10879 .cmd = NL80211_CMD_PROBE_CLIENT,
10880 .doit = nl80211_probe_client,
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_REGISTER_BEACONS,
10888 .doit = nl80211_register_beacons,
10889 .policy = nl80211_policy,
10890 .flags = GENL_ADMIN_PERM,
10891 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10892 NL80211_FLAG_NEED_RTNL,
10895 .cmd = NL80211_CMD_SET_NOACK_MAP,
10896 .doit = nl80211_set_noack_map,
10897 .policy = nl80211_policy,
10898 .flags = GENL_ADMIN_PERM,
10899 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10900 NL80211_FLAG_NEED_RTNL,
10903 .cmd = NL80211_CMD_START_P2P_DEVICE,
10904 .doit = nl80211_start_p2p_device,
10905 .policy = nl80211_policy,
10906 .flags = GENL_ADMIN_PERM,
10907 .internal_flags = NL80211_FLAG_NEED_WDEV |
10908 NL80211_FLAG_NEED_RTNL,
10911 .cmd = NL80211_CMD_STOP_P2P_DEVICE,
10912 .doit = nl80211_stop_p2p_device,
10913 .policy = nl80211_policy,
10914 .flags = GENL_ADMIN_PERM,
10915 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10916 NL80211_FLAG_NEED_RTNL,
10919 .cmd = NL80211_CMD_SET_MCAST_RATE,
10920 .doit = nl80211_set_mcast_rate,
10921 .policy = nl80211_policy,
10922 .flags = GENL_ADMIN_PERM,
10923 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10924 NL80211_FLAG_NEED_RTNL,
10927 .cmd = NL80211_CMD_SET_MAC_ACL,
10928 .doit = nl80211_set_mac_acl,
10929 .policy = nl80211_policy,
10930 .flags = GENL_ADMIN_PERM,
10931 .internal_flags = NL80211_FLAG_NEED_NETDEV |
10932 NL80211_FLAG_NEED_RTNL,
10935 .cmd = NL80211_CMD_RADAR_DETECT,
10936 .doit = nl80211_start_radar_detection,
10937 .policy = nl80211_policy,
10938 .flags = GENL_ADMIN_PERM,
10939 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10940 NL80211_FLAG_NEED_RTNL,
10943 .cmd = NL80211_CMD_GET_PROTOCOL_FEATURES,
10944 .doit = nl80211_get_protocol_features,
10945 .policy = nl80211_policy,
10948 .cmd = NL80211_CMD_UPDATE_FT_IES,
10949 .doit = nl80211_update_ft_ies,
10950 .policy = nl80211_policy,
10951 .flags = GENL_ADMIN_PERM,
10952 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10953 NL80211_FLAG_NEED_RTNL,
10956 .cmd = NL80211_CMD_CRIT_PROTOCOL_START,
10957 .doit = nl80211_crit_protocol_start,
10958 .policy = nl80211_policy,
10959 .flags = GENL_ADMIN_PERM,
10960 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10961 NL80211_FLAG_NEED_RTNL,
10964 .cmd = NL80211_CMD_CRIT_PROTOCOL_STOP,
10965 .doit = nl80211_crit_protocol_stop,
10966 .policy = nl80211_policy,
10967 .flags = GENL_ADMIN_PERM,
10968 .internal_flags = NL80211_FLAG_NEED_WDEV_UP |
10969 NL80211_FLAG_NEED_RTNL,
10972 .cmd = NL80211_CMD_GET_COALESCE,
10973 .doit = nl80211_get_coalesce,
10974 .policy = nl80211_policy,
10975 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10976 NL80211_FLAG_NEED_RTNL,
10979 .cmd = NL80211_CMD_SET_COALESCE,
10980 .doit = nl80211_set_coalesce,
10981 .policy = nl80211_policy,
10982 .flags = GENL_ADMIN_PERM,
10983 .internal_flags = NL80211_FLAG_NEED_WIPHY |
10984 NL80211_FLAG_NEED_RTNL,
10987 .cmd = NL80211_CMD_CHANNEL_SWITCH,
10988 .doit = nl80211_channel_switch,
10989 .policy = nl80211_policy,
10990 .flags = GENL_ADMIN_PERM,
10991 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
10992 NL80211_FLAG_NEED_RTNL,
10995 .cmd = NL80211_CMD_VENDOR,
10996 .doit = nl80211_vendor_cmd,
10997 .policy = nl80211_policy,
10998 .flags = GENL_ADMIN_PERM,
10999 .internal_flags = NL80211_FLAG_NEED_WIPHY |
11000 NL80211_FLAG_NEED_RTNL,
11003 .cmd = NL80211_CMD_SET_QOS_MAP,
11004 .doit = nl80211_set_qos_map,
11005 .policy = nl80211_policy,
11006 .flags = GENL_ADMIN_PERM,
11007 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11008 NL80211_FLAG_NEED_RTNL,
11011 .cmd = NL80211_CMD_ADD_TX_TS,
11012 .doit = nl80211_add_tx_ts,
11013 .policy = nl80211_policy,
11014 .flags = GENL_ADMIN_PERM,
11015 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11016 NL80211_FLAG_NEED_RTNL,
11019 .cmd = NL80211_CMD_DEL_TX_TS,
11020 .doit = nl80211_del_tx_ts,
11021 .policy = nl80211_policy,
11022 .flags = GENL_ADMIN_PERM,
11023 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11024 NL80211_FLAG_NEED_RTNL,
11027 .cmd = NL80211_CMD_TDLS_CHANNEL_SWITCH,
11028 .doit = nl80211_tdls_channel_switch,
11029 .policy = nl80211_policy,
11030 .flags = GENL_ADMIN_PERM,
11031 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11032 NL80211_FLAG_NEED_RTNL,
11035 .cmd = NL80211_CMD_TDLS_CANCEL_CHANNEL_SWITCH,
11036 .doit = nl80211_tdls_cancel_channel_switch,
11037 .policy = nl80211_policy,
11038 .flags = GENL_ADMIN_PERM,
11039 .internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
11040 NL80211_FLAG_NEED_RTNL,
11044 /* notification functions */
11046 void nl80211_notify_wiphy(struct cfg80211_registered_device *rdev,
11047 enum nl80211_commands cmd)
11049 struct sk_buff *msg;
11050 struct nl80211_dump_wiphy_state state = {};
11052 WARN_ON(cmd != NL80211_CMD_NEW_WIPHY &&
11053 cmd != NL80211_CMD_DEL_WIPHY);
11055 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11059 if (nl80211_send_wiphy(rdev, cmd, msg, 0, 0, 0, &state) < 0) {
11064 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11065 NL80211_MCGRP_CONFIG, GFP_KERNEL);
11068 static int nl80211_add_scan_req(struct sk_buff *msg,
11069 struct cfg80211_registered_device *rdev)
11071 struct cfg80211_scan_request *req = rdev->scan_req;
11072 struct nlattr *nest;
11078 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_SSIDS);
11080 goto nla_put_failure;
11081 for (i = 0; i < req->n_ssids; i++) {
11082 if (nla_put(msg, i, req->ssids[i].ssid_len, req->ssids[i].ssid))
11083 goto nla_put_failure;
11085 nla_nest_end(msg, nest);
11087 nest = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
11089 goto nla_put_failure;
11090 for (i = 0; i < req->n_channels; i++) {
11091 if (nla_put_u32(msg, i, req->channels[i]->center_freq))
11092 goto nla_put_failure;
11094 nla_nest_end(msg, nest);
11097 nla_put(msg, NL80211_ATTR_IE, req->ie_len, req->ie))
11098 goto nla_put_failure;
11101 nla_put_u32(msg, NL80211_ATTR_SCAN_FLAGS, req->flags))
11102 goto nla_put_failure;
11109 static int nl80211_send_scan_msg(struct sk_buff *msg,
11110 struct cfg80211_registered_device *rdev,
11111 struct wireless_dev *wdev,
11112 u32 portid, u32 seq, int flags,
11117 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11121 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11122 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11123 wdev->netdev->ifindex)) ||
11124 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
11125 goto nla_put_failure;
11127 /* ignore errors and send incomplete event anyway */
11128 nl80211_add_scan_req(msg, rdev);
11130 genlmsg_end(msg, hdr);
11134 genlmsg_cancel(msg, hdr);
11139 nl80211_send_sched_scan_msg(struct sk_buff *msg,
11140 struct cfg80211_registered_device *rdev,
11141 struct net_device *netdev,
11142 u32 portid, u32 seq, int flags, u32 cmd)
11146 hdr = nl80211hdr_put(msg, portid, seq, flags, cmd);
11150 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11151 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
11152 goto nla_put_failure;
11154 genlmsg_end(msg, hdr);
11158 genlmsg_cancel(msg, hdr);
11162 void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
11163 struct wireless_dev *wdev)
11165 struct sk_buff *msg;
11167 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11171 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11172 NL80211_CMD_TRIGGER_SCAN) < 0) {
11177 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11178 NL80211_MCGRP_SCAN, GFP_KERNEL);
11181 struct sk_buff *nl80211_build_scan_msg(struct cfg80211_registered_device *rdev,
11182 struct wireless_dev *wdev, bool aborted)
11184 struct sk_buff *msg;
11186 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11190 if (nl80211_send_scan_msg(msg, rdev, wdev, 0, 0, 0,
11191 aborted ? NL80211_CMD_SCAN_ABORTED :
11192 NL80211_CMD_NEW_SCAN_RESULTS) < 0) {
11200 void nl80211_send_scan_result(struct cfg80211_registered_device *rdev,
11201 struct sk_buff *msg)
11206 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11207 NL80211_MCGRP_SCAN, GFP_KERNEL);
11210 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
11211 struct net_device *netdev)
11213 struct sk_buff *msg;
11215 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11219 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0,
11220 NL80211_CMD_SCHED_SCAN_RESULTS) < 0) {
11225 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11226 NL80211_MCGRP_SCAN, GFP_KERNEL);
11229 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
11230 struct net_device *netdev, u32 cmd)
11232 struct sk_buff *msg;
11234 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11238 if (nl80211_send_sched_scan_msg(msg, rdev, netdev, 0, 0, 0, cmd) < 0) {
11243 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11244 NL80211_MCGRP_SCAN, GFP_KERNEL);
11247 static bool nl80211_reg_change_event_fill(struct sk_buff *msg,
11248 struct regulatory_request *request)
11250 /* Userspace can always count this one always being set */
11251 if (nla_put_u8(msg, NL80211_ATTR_REG_INITIATOR, request->initiator))
11252 goto nla_put_failure;
11254 if (request->alpha2[0] == '0' && request->alpha2[1] == '0') {
11255 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11256 NL80211_REGDOM_TYPE_WORLD))
11257 goto nla_put_failure;
11258 } else if (request->alpha2[0] == '9' && request->alpha2[1] == '9') {
11259 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11260 NL80211_REGDOM_TYPE_CUSTOM_WORLD))
11261 goto nla_put_failure;
11262 } else if ((request->alpha2[0] == '9' && request->alpha2[1] == '8') ||
11263 request->intersect) {
11264 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11265 NL80211_REGDOM_TYPE_INTERSECTION))
11266 goto nla_put_failure;
11268 if (nla_put_u8(msg, NL80211_ATTR_REG_TYPE,
11269 NL80211_REGDOM_TYPE_COUNTRY) ||
11270 nla_put_string(msg, NL80211_ATTR_REG_ALPHA2,
11272 goto nla_put_failure;
11275 if (request->wiphy_idx != WIPHY_IDX_INVALID) {
11276 struct wiphy *wiphy = wiphy_idx_to_wiphy(request->wiphy_idx);
11279 nla_put_u32(msg, NL80211_ATTR_WIPHY, request->wiphy_idx))
11280 goto nla_put_failure;
11283 wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED &&
11284 nla_put_flag(msg, NL80211_ATTR_WIPHY_SELF_MANAGED_REG))
11285 goto nla_put_failure;
11295 * This can happen on global regulatory changes or device specific settings
11296 * based on custom regulatory domains.
11298 void nl80211_common_reg_change_event(enum nl80211_commands cmd_id,
11299 struct regulatory_request *request)
11301 struct sk_buff *msg;
11304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11308 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd_id);
11314 if (nl80211_reg_change_event_fill(msg, request) == false)
11315 goto nla_put_failure;
11317 genlmsg_end(msg, hdr);
11320 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11321 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11327 genlmsg_cancel(msg, hdr);
11331 static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
11332 struct net_device *netdev,
11333 const u8 *buf, size_t len,
11334 enum nl80211_commands cmd, gfp_t gfp,
11337 struct sk_buff *msg;
11340 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11344 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11350 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11351 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11352 nla_put(msg, NL80211_ATTR_FRAME, len, buf))
11353 goto nla_put_failure;
11355 if (uapsd_queues >= 0) {
11356 struct nlattr *nla_wmm =
11357 nla_nest_start(msg, NL80211_ATTR_STA_WME);
11359 goto nla_put_failure;
11361 if (nla_put_u8(msg, NL80211_STA_WME_UAPSD_QUEUES,
11363 goto nla_put_failure;
11365 nla_nest_end(msg, nla_wmm);
11368 genlmsg_end(msg, hdr);
11370 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11371 NL80211_MCGRP_MLME, gfp);
11375 genlmsg_cancel(msg, hdr);
11379 void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
11380 struct net_device *netdev, const u8 *buf,
11381 size_t len, gfp_t gfp)
11383 nl80211_send_mlme_event(rdev, netdev, buf, len,
11384 NL80211_CMD_AUTHENTICATE, gfp, -1);
11387 void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
11388 struct net_device *netdev, const u8 *buf,
11389 size_t len, gfp_t gfp, int uapsd_queues)
11391 nl80211_send_mlme_event(rdev, netdev, buf, len,
11392 NL80211_CMD_ASSOCIATE, gfp, uapsd_queues);
11395 void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
11396 struct net_device *netdev, const u8 *buf,
11397 size_t len, gfp_t gfp)
11399 nl80211_send_mlme_event(rdev, netdev, buf, len,
11400 NL80211_CMD_DEAUTHENTICATE, gfp, -1);
11403 void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
11404 struct net_device *netdev, const u8 *buf,
11405 size_t len, gfp_t gfp)
11407 nl80211_send_mlme_event(rdev, netdev, buf, len,
11408 NL80211_CMD_DISASSOCIATE, gfp, -1);
11411 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev, const u8 *buf,
11414 struct wireless_dev *wdev = dev->ieee80211_ptr;
11415 struct wiphy *wiphy = wdev->wiphy;
11416 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11417 const struct ieee80211_mgmt *mgmt = (void *)buf;
11420 if (WARN_ON(len < 2))
11423 if (ieee80211_is_deauth(mgmt->frame_control))
11424 cmd = NL80211_CMD_UNPROT_DEAUTHENTICATE;
11426 cmd = NL80211_CMD_UNPROT_DISASSOCIATE;
11428 trace_cfg80211_rx_unprot_mlme_mgmt(dev, buf, len);
11429 nl80211_send_mlme_event(rdev, dev, buf, len, cmd, GFP_ATOMIC, -1);
11431 EXPORT_SYMBOL(cfg80211_rx_unprot_mlme_mgmt);
11433 static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
11434 struct net_device *netdev, int cmd,
11435 const u8 *addr, gfp_t gfp)
11437 struct sk_buff *msg;
11440 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11444 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11450 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11451 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11452 nla_put_flag(msg, NL80211_ATTR_TIMED_OUT) ||
11453 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11454 goto nla_put_failure;
11456 genlmsg_end(msg, hdr);
11458 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11459 NL80211_MCGRP_MLME, gfp);
11463 genlmsg_cancel(msg, hdr);
11467 void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
11468 struct net_device *netdev, const u8 *addr,
11471 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_AUTHENTICATE,
11475 void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
11476 struct net_device *netdev, const u8 *addr,
11479 nl80211_send_mlme_timeout(rdev, netdev, NL80211_CMD_ASSOCIATE,
11483 void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
11484 struct net_device *netdev, const u8 *bssid,
11485 const u8 *req_ie, size_t req_ie_len,
11486 const u8 *resp_ie, size_t resp_ie_len,
11487 u16 status, gfp_t gfp)
11489 struct sk_buff *msg;
11492 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11496 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONNECT);
11502 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11503 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11504 (bssid && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid)) ||
11505 nla_put_u16(msg, NL80211_ATTR_STATUS_CODE, status) ||
11507 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11509 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11510 goto nla_put_failure;
11512 genlmsg_end(msg, hdr);
11514 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11515 NL80211_MCGRP_MLME, gfp);
11519 genlmsg_cancel(msg, hdr);
11524 void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
11525 struct net_device *netdev, const u8 *bssid,
11526 const u8 *req_ie, size_t req_ie_len,
11527 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp)
11529 struct sk_buff *msg;
11532 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11536 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_ROAM);
11542 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11543 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11544 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid) ||
11546 nla_put(msg, NL80211_ATTR_REQ_IE, req_ie_len, req_ie)) ||
11548 nla_put(msg, NL80211_ATTR_RESP_IE, resp_ie_len, resp_ie)))
11549 goto nla_put_failure;
11551 genlmsg_end(msg, hdr);
11553 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11554 NL80211_MCGRP_MLME, gfp);
11558 genlmsg_cancel(msg, hdr);
11563 void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
11564 struct net_device *netdev, u16 reason,
11565 const u8 *ie, size_t ie_len, bool from_ap)
11567 struct sk_buff *msg;
11570 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
11574 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_DISCONNECT);
11580 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11581 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11582 (from_ap && reason &&
11583 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason)) ||
11585 nla_put_flag(msg, NL80211_ATTR_DISCONNECTED_BY_AP)) ||
11586 (ie && nla_put(msg, NL80211_ATTR_IE, ie_len, ie)))
11587 goto nla_put_failure;
11589 genlmsg_end(msg, hdr);
11591 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11592 NL80211_MCGRP_MLME, GFP_KERNEL);
11596 genlmsg_cancel(msg, hdr);
11601 void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
11602 struct net_device *netdev, const u8 *bssid,
11605 struct sk_buff *msg;
11608 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11612 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_JOIN_IBSS);
11618 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11619 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11620 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
11621 goto nla_put_failure;
11623 genlmsg_end(msg, hdr);
11625 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11626 NL80211_MCGRP_MLME, gfp);
11630 genlmsg_cancel(msg, hdr);
11634 void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
11635 const u8* ie, u8 ie_len, gfp_t gfp)
11637 struct wireless_dev *wdev = dev->ieee80211_ptr;
11638 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11639 struct sk_buff *msg;
11642 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_MESH_POINT))
11645 trace_cfg80211_notify_new_peer_candidate(dev, addr);
11647 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11651 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NEW_PEER_CANDIDATE);
11657 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11658 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11659 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
11661 nla_put(msg, NL80211_ATTR_IE, ie_len , ie)))
11662 goto nla_put_failure;
11664 genlmsg_end(msg, hdr);
11666 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11667 NL80211_MCGRP_MLME, gfp);
11671 genlmsg_cancel(msg, hdr);
11674 EXPORT_SYMBOL(cfg80211_notify_new_peer_candidate);
11676 void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
11677 struct net_device *netdev, const u8 *addr,
11678 enum nl80211_key_type key_type, int key_id,
11679 const u8 *tsc, gfp_t gfp)
11681 struct sk_buff *msg;
11684 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11688 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE);
11694 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11695 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
11696 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) ||
11697 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) ||
11699 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) ||
11700 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc)))
11701 goto nla_put_failure;
11703 genlmsg_end(msg, hdr);
11705 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11706 NL80211_MCGRP_MLME, gfp);
11710 genlmsg_cancel(msg, hdr);
11714 void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
11715 struct ieee80211_channel *channel_before,
11716 struct ieee80211_channel *channel_after)
11718 struct sk_buff *msg;
11720 struct nlattr *nl_freq;
11722 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
11726 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT);
11733 * Since we are applying the beacon hint to a wiphy we know its
11734 * wiphy_idx is valid
11736 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy)))
11737 goto nla_put_failure;
11740 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE);
11742 goto nla_put_failure;
11743 if (nl80211_msg_put_channel(msg, channel_before, false))
11744 goto nla_put_failure;
11745 nla_nest_end(msg, nl_freq);
11748 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER);
11750 goto nla_put_failure;
11751 if (nl80211_msg_put_channel(msg, channel_after, false))
11752 goto nla_put_failure;
11753 nla_nest_end(msg, nl_freq);
11755 genlmsg_end(msg, hdr);
11758 genlmsg_multicast_allns(&nl80211_fam, msg, 0,
11759 NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
11765 genlmsg_cancel(msg, hdr);
11769 static void nl80211_send_remain_on_chan_event(
11770 int cmd, struct cfg80211_registered_device *rdev,
11771 struct wireless_dev *wdev, u64 cookie,
11772 struct ieee80211_channel *chan,
11773 unsigned int duration, gfp_t gfp)
11775 struct sk_buff *msg;
11778 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11782 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11788 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11789 (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
11790 wdev->netdev->ifindex)) ||
11791 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
11792 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, chan->center_freq) ||
11793 nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
11794 NL80211_CHAN_NO_HT) ||
11795 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie))
11796 goto nla_put_failure;
11798 if (cmd == NL80211_CMD_REMAIN_ON_CHANNEL &&
11799 nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
11800 goto nla_put_failure;
11802 genlmsg_end(msg, hdr);
11804 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11805 NL80211_MCGRP_MLME, gfp);
11809 genlmsg_cancel(msg, hdr);
11813 void cfg80211_ready_on_channel(struct wireless_dev *wdev, u64 cookie,
11814 struct ieee80211_channel *chan,
11815 unsigned int duration, gfp_t gfp)
11817 struct wiphy *wiphy = wdev->wiphy;
11818 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11820 trace_cfg80211_ready_on_channel(wdev, cookie, chan, duration);
11821 nl80211_send_remain_on_chan_event(NL80211_CMD_REMAIN_ON_CHANNEL,
11822 rdev, wdev, cookie, chan,
11825 EXPORT_SYMBOL(cfg80211_ready_on_channel);
11827 void cfg80211_remain_on_channel_expired(struct wireless_dev *wdev, u64 cookie,
11828 struct ieee80211_channel *chan,
11831 struct wiphy *wiphy = wdev->wiphy;
11832 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11834 trace_cfg80211_ready_on_channel_expired(wdev, cookie, chan);
11835 nl80211_send_remain_on_chan_event(NL80211_CMD_CANCEL_REMAIN_ON_CHANNEL,
11836 rdev, wdev, cookie, chan, 0, gfp);
11838 EXPORT_SYMBOL(cfg80211_remain_on_channel_expired);
11840 void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
11841 struct station_info *sinfo, gfp_t gfp)
11843 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11844 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11845 struct sk_buff *msg;
11847 trace_cfg80211_new_sta(dev, mac_addr, sinfo);
11849 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11853 if (nl80211_send_station(msg, NL80211_CMD_NEW_STATION, 0, 0, 0,
11854 rdev, dev, mac_addr, sinfo) < 0) {
11859 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11860 NL80211_MCGRP_MLME, gfp);
11862 EXPORT_SYMBOL(cfg80211_new_sta);
11864 void cfg80211_del_sta_sinfo(struct net_device *dev, const u8 *mac_addr,
11865 struct station_info *sinfo, gfp_t gfp)
11867 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11868 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11869 struct sk_buff *msg;
11870 struct station_info empty_sinfo = {};
11873 sinfo = &empty_sinfo;
11875 trace_cfg80211_del_sta(dev, mac_addr);
11877 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
11881 if (nl80211_send_station(msg, NL80211_CMD_DEL_STATION, 0, 0, 0,
11882 rdev, dev, mac_addr, sinfo) < 0) {
11887 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11888 NL80211_MCGRP_MLME, gfp);
11890 EXPORT_SYMBOL(cfg80211_del_sta_sinfo);
11892 void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
11893 enum nl80211_connect_failed_reason reason,
11896 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy;
11897 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
11898 struct sk_buff *msg;
11901 msg = nlmsg_new(NLMSG_GOODSIZE, gfp);
11905 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CONN_FAILED);
11911 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11912 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr) ||
11913 nla_put_u32(msg, NL80211_ATTR_CONN_FAILED_REASON, reason))
11914 goto nla_put_failure;
11916 genlmsg_end(msg, hdr);
11918 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
11919 NL80211_MCGRP_MLME, gfp);
11923 genlmsg_cancel(msg, hdr);
11926 EXPORT_SYMBOL(cfg80211_conn_failed);
11928 static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
11929 const u8 *addr, gfp_t gfp)
11931 struct wireless_dev *wdev = dev->ieee80211_ptr;
11932 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
11933 struct sk_buff *msg;
11935 u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
11940 msg = nlmsg_new(100, gfp);
11944 hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
11950 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
11951 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
11952 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr))
11953 goto nla_put_failure;
11955 genlmsg_end(msg, hdr);
11956 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
11960 genlmsg_cancel(msg, hdr);
11965 bool cfg80211_rx_spurious_frame(struct net_device *dev,
11966 const u8 *addr, gfp_t gfp)
11968 struct wireless_dev *wdev = dev->ieee80211_ptr;
11971 trace_cfg80211_rx_spurious_frame(dev, addr);
11973 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11974 wdev->iftype != NL80211_IFTYPE_P2P_GO)) {
11975 trace_cfg80211_return_bool(false);
11978 ret = __nl80211_unexpected_frame(dev, NL80211_CMD_UNEXPECTED_FRAME,
11980 trace_cfg80211_return_bool(ret);
11983 EXPORT_SYMBOL(cfg80211_rx_spurious_frame);
11985 bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
11986 const u8 *addr, gfp_t gfp)
11988 struct wireless_dev *wdev = dev->ieee80211_ptr;
11991 trace_cfg80211_rx_unexpected_4addr_frame(dev, addr);
11993 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
11994 wdev->iftype != NL80211_IFTYPE_P2P_GO &&
11995 wdev->iftype != NL80211_IFTYPE_AP_VLAN)) {
11996 trace_cfg80211_return_bool(false);
11999 ret = __nl80211_unexpected_frame(dev,
12000 NL80211_CMD_UNEXPECTED_4ADDR_FRAME,
12002 trace_cfg80211_return_bool(ret);
12005 EXPORT_SYMBOL(cfg80211_rx_unexpected_4addr_frame);
12007 int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
12008 struct wireless_dev *wdev, u32 nlportid,
12009 int freq, int sig_dbm,
12010 const u8 *buf, size_t len, u32 flags, gfp_t gfp)
12012 struct net_device *netdev = wdev->netdev;
12013 struct sk_buff *msg;
12016 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12020 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12026 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12027 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12028 netdev->ifindex)) ||
12029 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12030 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq) ||
12032 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12033 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12035 nla_put_u32(msg, NL80211_ATTR_RXMGMT_FLAGS, flags)))
12036 goto nla_put_failure;
12038 genlmsg_end(msg, hdr);
12040 return genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12043 genlmsg_cancel(msg, hdr);
12048 void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
12049 const u8 *buf, size_t len, bool ack, gfp_t gfp)
12051 struct wiphy *wiphy = wdev->wiphy;
12052 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12053 struct net_device *netdev = wdev->netdev;
12054 struct sk_buff *msg;
12057 trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
12059 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12063 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME_TX_STATUS);
12069 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12070 (netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12071 netdev->ifindex)) ||
12072 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)) ||
12073 nla_put(msg, NL80211_ATTR_FRAME, len, buf) ||
12074 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12075 (ack && nla_put_flag(msg, NL80211_ATTR_ACK)))
12076 goto nla_put_failure;
12078 genlmsg_end(msg, hdr);
12080 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12081 NL80211_MCGRP_MLME, gfp);
12085 genlmsg_cancel(msg, hdr);
12088 EXPORT_SYMBOL(cfg80211_mgmt_tx_status);
12090 static struct sk_buff *cfg80211_prepare_cqm(struct net_device *dev,
12091 const char *mac, gfp_t gfp)
12093 struct wireless_dev *wdev = dev->ieee80211_ptr;
12094 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12095 struct sk_buff *msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12101 cb = (void **)msg->cb;
12103 cb[0] = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_NOTIFY_CQM);
12109 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12110 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
12111 goto nla_put_failure;
12113 if (mac && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, mac))
12114 goto nla_put_failure;
12116 cb[1] = nla_nest_start(msg, NL80211_ATTR_CQM);
12118 goto nla_put_failure;
12128 static void cfg80211_send_cqm(struct sk_buff *msg, gfp_t gfp)
12130 void **cb = (void **)msg->cb;
12131 struct cfg80211_registered_device *rdev = cb[2];
12133 nla_nest_end(msg, cb[1]);
12134 genlmsg_end(msg, cb[0]);
12136 memset(msg->cb, 0, sizeof(msg->cb));
12138 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12139 NL80211_MCGRP_MLME, gfp);
12142 void cfg80211_cqm_rssi_notify(struct net_device *dev,
12143 enum nl80211_cqm_rssi_threshold_event rssi_event,
12146 struct sk_buff *msg;
12148 trace_cfg80211_cqm_rssi_notify(dev, rssi_event);
12150 if (WARN_ON(rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW &&
12151 rssi_event != NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH))
12154 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12158 if (nla_put_u32(msg, NL80211_ATTR_CQM_RSSI_THRESHOLD_EVENT,
12160 goto nla_put_failure;
12162 cfg80211_send_cqm(msg, gfp);
12169 EXPORT_SYMBOL(cfg80211_cqm_rssi_notify);
12171 void cfg80211_cqm_txe_notify(struct net_device *dev,
12172 const u8 *peer, u32 num_packets,
12173 u32 rate, u32 intvl, gfp_t gfp)
12175 struct sk_buff *msg;
12177 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12181 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_PKTS, num_packets))
12182 goto nla_put_failure;
12184 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_RATE, rate))
12185 goto nla_put_failure;
12187 if (nla_put_u32(msg, NL80211_ATTR_CQM_TXE_INTVL, intvl))
12188 goto nla_put_failure;
12190 cfg80211_send_cqm(msg, gfp);
12196 EXPORT_SYMBOL(cfg80211_cqm_txe_notify);
12198 void cfg80211_cqm_pktloss_notify(struct net_device *dev,
12199 const u8 *peer, u32 num_packets, gfp_t gfp)
12201 struct sk_buff *msg;
12203 trace_cfg80211_cqm_pktloss_notify(dev, peer, num_packets);
12205 msg = cfg80211_prepare_cqm(dev, peer, gfp);
12209 if (nla_put_u32(msg, NL80211_ATTR_CQM_PKT_LOSS_EVENT, num_packets))
12210 goto nla_put_failure;
12212 cfg80211_send_cqm(msg, gfp);
12218 EXPORT_SYMBOL(cfg80211_cqm_pktloss_notify);
12220 void cfg80211_cqm_beacon_loss_notify(struct net_device *dev, gfp_t gfp)
12222 struct sk_buff *msg;
12224 msg = cfg80211_prepare_cqm(dev, NULL, gfp);
12228 if (nla_put_flag(msg, NL80211_ATTR_CQM_BEACON_LOSS_EVENT))
12229 goto nla_put_failure;
12231 cfg80211_send_cqm(msg, gfp);
12237 EXPORT_SYMBOL(cfg80211_cqm_beacon_loss_notify);
12239 static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
12240 struct net_device *netdev, const u8 *bssid,
12241 const u8 *replay_ctr, gfp_t gfp)
12243 struct sk_buff *msg;
12244 struct nlattr *rekey_attr;
12247 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12251 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_REKEY_OFFLOAD);
12257 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12258 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12259 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, bssid))
12260 goto nla_put_failure;
12262 rekey_attr = nla_nest_start(msg, NL80211_ATTR_REKEY_DATA);
12264 goto nla_put_failure;
12266 if (nla_put(msg, NL80211_REKEY_DATA_REPLAY_CTR,
12267 NL80211_REPLAY_CTR_LEN, replay_ctr))
12268 goto nla_put_failure;
12270 nla_nest_end(msg, rekey_attr);
12272 genlmsg_end(msg, hdr);
12274 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12275 NL80211_MCGRP_MLME, gfp);
12279 genlmsg_cancel(msg, hdr);
12283 void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
12284 const u8 *replay_ctr, gfp_t gfp)
12286 struct wireless_dev *wdev = dev->ieee80211_ptr;
12287 struct wiphy *wiphy = wdev->wiphy;
12288 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12290 trace_cfg80211_gtk_rekey_notify(dev, bssid);
12291 nl80211_gtk_rekey_notify(rdev, dev, bssid, replay_ctr, gfp);
12293 EXPORT_SYMBOL(cfg80211_gtk_rekey_notify);
12296 nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
12297 struct net_device *netdev, int index,
12298 const u8 *bssid, bool preauth, gfp_t gfp)
12300 struct sk_buff *msg;
12301 struct nlattr *attr;
12304 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12308 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PMKSA_CANDIDATE);
12314 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12315 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12316 goto nla_put_failure;
12318 attr = nla_nest_start(msg, NL80211_ATTR_PMKSA_CANDIDATE);
12320 goto nla_put_failure;
12322 if (nla_put_u32(msg, NL80211_PMKSA_CANDIDATE_INDEX, index) ||
12323 nla_put(msg, NL80211_PMKSA_CANDIDATE_BSSID, ETH_ALEN, bssid) ||
12325 nla_put_flag(msg, NL80211_PMKSA_CANDIDATE_PREAUTH)))
12326 goto nla_put_failure;
12328 nla_nest_end(msg, attr);
12330 genlmsg_end(msg, hdr);
12332 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12333 NL80211_MCGRP_MLME, gfp);
12337 genlmsg_cancel(msg, hdr);
12341 void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
12342 const u8 *bssid, bool preauth, gfp_t gfp)
12344 struct wireless_dev *wdev = dev->ieee80211_ptr;
12345 struct wiphy *wiphy = wdev->wiphy;
12346 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12348 trace_cfg80211_pmksa_candidate_notify(dev, index, bssid, preauth);
12349 nl80211_pmksa_candidate_notify(rdev, dev, index, bssid, preauth, gfp);
12351 EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
12353 static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
12354 struct net_device *netdev,
12355 struct cfg80211_chan_def *chandef,
12357 enum nl80211_commands notif,
12360 struct sk_buff *msg;
12363 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12367 hdr = nl80211hdr_put(msg, 0, 0, 0, notif);
12373 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex))
12374 goto nla_put_failure;
12376 if (nl80211_send_chandef(msg, chandef))
12377 goto nla_put_failure;
12379 if ((notif == NL80211_CMD_CH_SWITCH_STARTED_NOTIFY) &&
12380 (nla_put_u32(msg, NL80211_ATTR_CH_SWITCH_COUNT, count)))
12381 goto nla_put_failure;
12383 genlmsg_end(msg, hdr);
12385 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12386 NL80211_MCGRP_MLME, gfp);
12390 genlmsg_cancel(msg, hdr);
12394 void cfg80211_ch_switch_notify(struct net_device *dev,
12395 struct cfg80211_chan_def *chandef)
12397 struct wireless_dev *wdev = dev->ieee80211_ptr;
12398 struct wiphy *wiphy = wdev->wiphy;
12399 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12401 ASSERT_WDEV_LOCK(wdev);
12403 trace_cfg80211_ch_switch_notify(dev, chandef);
12405 wdev->chandef = *chandef;
12406 wdev->preset_chandef = *chandef;
12407 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12408 NL80211_CMD_CH_SWITCH_NOTIFY, 0);
12410 EXPORT_SYMBOL(cfg80211_ch_switch_notify);
12412 void cfg80211_ch_switch_started_notify(struct net_device *dev,
12413 struct cfg80211_chan_def *chandef,
12416 struct wireless_dev *wdev = dev->ieee80211_ptr;
12417 struct wiphy *wiphy = wdev->wiphy;
12418 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12420 trace_cfg80211_ch_switch_started_notify(dev, chandef);
12422 nl80211_ch_switch_notify(rdev, dev, chandef, GFP_KERNEL,
12423 NL80211_CMD_CH_SWITCH_STARTED_NOTIFY, count);
12425 EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
12428 nl80211_radar_notify(struct cfg80211_registered_device *rdev,
12429 const struct cfg80211_chan_def *chandef,
12430 enum nl80211_radar_event event,
12431 struct net_device *netdev, gfp_t gfp)
12433 struct sk_buff *msg;
12436 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12440 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_RADAR_DETECT);
12446 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx))
12447 goto nla_put_failure;
12449 /* NOP and radar events don't need a netdev parameter */
12451 struct wireless_dev *wdev = netdev->ieee80211_ptr;
12453 if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12454 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12455 goto nla_put_failure;
12458 if (nla_put_u32(msg, NL80211_ATTR_RADAR_EVENT, event))
12459 goto nla_put_failure;
12461 if (nl80211_send_chandef(msg, chandef))
12462 goto nla_put_failure;
12464 genlmsg_end(msg, hdr);
12466 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12467 NL80211_MCGRP_MLME, gfp);
12471 genlmsg_cancel(msg, hdr);
12475 void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
12476 u64 cookie, bool acked, gfp_t gfp)
12478 struct wireless_dev *wdev = dev->ieee80211_ptr;
12479 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12480 struct sk_buff *msg;
12483 trace_cfg80211_probe_status(dev, addr, cookie, acked);
12485 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12490 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_PROBE_CLIENT);
12496 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12497 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12498 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
12499 nla_put_u64(msg, NL80211_ATTR_COOKIE, cookie) ||
12500 (acked && nla_put_flag(msg, NL80211_ATTR_ACK)))
12501 goto nla_put_failure;
12503 genlmsg_end(msg, hdr);
12505 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12506 NL80211_MCGRP_MLME, gfp);
12510 genlmsg_cancel(msg, hdr);
12513 EXPORT_SYMBOL(cfg80211_probe_status);
12515 void cfg80211_report_obss_beacon(struct wiphy *wiphy,
12516 const u8 *frame, size_t len,
12517 int freq, int sig_dbm)
12519 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12520 struct sk_buff *msg;
12522 struct cfg80211_beacon_registration *reg;
12524 trace_cfg80211_report_obss_beacon(wiphy, frame, len, freq, sig_dbm);
12526 spin_lock_bh(&rdev->beacon_registrations_lock);
12527 list_for_each_entry(reg, &rdev->beacon_registrations, list) {
12528 msg = nlmsg_new(len + 100, GFP_ATOMIC);
12530 spin_unlock_bh(&rdev->beacon_registrations_lock);
12534 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FRAME);
12536 goto nla_put_failure;
12538 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12540 nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ, freq)) ||
12542 nla_put_u32(msg, NL80211_ATTR_RX_SIGNAL_DBM, sig_dbm)) ||
12543 nla_put(msg, NL80211_ATTR_FRAME, len, frame))
12544 goto nla_put_failure;
12546 genlmsg_end(msg, hdr);
12548 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, reg->nlportid);
12550 spin_unlock_bh(&rdev->beacon_registrations_lock);
12554 spin_unlock_bh(&rdev->beacon_registrations_lock);
12556 genlmsg_cancel(msg, hdr);
12559 EXPORT_SYMBOL(cfg80211_report_obss_beacon);
12562 static int cfg80211_net_detect_results(struct sk_buff *msg,
12563 struct cfg80211_wowlan_wakeup *wakeup)
12565 struct cfg80211_wowlan_nd_info *nd = wakeup->net_detect;
12566 struct nlattr *nl_results, *nl_match, *nl_freqs;
12569 nl_results = nla_nest_start(
12570 msg, NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS);
12574 for (i = 0; i < nd->n_matches; i++) {
12575 struct cfg80211_wowlan_nd_match *match = nd->matches[i];
12577 nl_match = nla_nest_start(msg, i);
12581 /* The SSID attribute is optional in nl80211, but for
12582 * simplicity reasons it's always present in the
12583 * cfg80211 structure. If a driver can't pass the
12584 * SSID, that needs to be changed. A zero length SSID
12585 * is still a valid SSID (wildcard), so it cannot be
12586 * used for this purpose.
12588 if (nla_put(msg, NL80211_ATTR_SSID, match->ssid.ssid_len,
12589 match->ssid.ssid)) {
12590 nla_nest_cancel(msg, nl_match);
12594 if (match->n_channels) {
12595 nl_freqs = nla_nest_start(
12596 msg, NL80211_ATTR_SCAN_FREQUENCIES);
12598 nla_nest_cancel(msg, nl_match);
12602 for (j = 0; j < match->n_channels; j++) {
12603 if (nla_put_u32(msg, j, match->channels[j])) {
12604 nla_nest_cancel(msg, nl_freqs);
12605 nla_nest_cancel(msg, nl_match);
12610 nla_nest_end(msg, nl_freqs);
12613 nla_nest_end(msg, nl_match);
12617 nla_nest_end(msg, nl_results);
12621 void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
12622 struct cfg80211_wowlan_wakeup *wakeup,
12625 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12626 struct sk_buff *msg;
12630 trace_cfg80211_report_wowlan_wakeup(wdev->wiphy, wdev, wakeup);
12633 size += wakeup->packet_present_len;
12635 msg = nlmsg_new(size, gfp);
12639 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_SET_WOWLAN);
12643 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12644 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12647 if (wdev->netdev && nla_put_u32(msg, NL80211_ATTR_IFINDEX,
12648 wdev->netdev->ifindex))
12652 struct nlattr *reasons;
12654 reasons = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
12658 if (wakeup->disconnect &&
12659 nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT))
12661 if (wakeup->magic_pkt &&
12662 nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT))
12664 if (wakeup->gtk_rekey_failure &&
12665 nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE))
12667 if (wakeup->eap_identity_req &&
12668 nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST))
12670 if (wakeup->four_way_handshake &&
12671 nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE))
12673 if (wakeup->rfkill_release &&
12674 nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))
12677 if (wakeup->pattern_idx >= 0 &&
12678 nla_put_u32(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
12679 wakeup->pattern_idx))
12682 if (wakeup->tcp_match &&
12683 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH))
12686 if (wakeup->tcp_connlost &&
12687 nla_put_flag(msg, NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST))
12690 if (wakeup->tcp_nomoretokens &&
12692 NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS))
12695 if (wakeup->packet) {
12696 u32 pkt_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211;
12697 u32 len_attr = NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN;
12699 if (!wakeup->packet_80211) {
12701 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023;
12703 NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN;
12706 if (wakeup->packet_len &&
12707 nla_put_u32(msg, len_attr, wakeup->packet_len))
12710 if (nla_put(msg, pkt_attr, wakeup->packet_present_len,
12715 if (wakeup->net_detect &&
12716 cfg80211_net_detect_results(msg, wakeup))
12719 nla_nest_end(msg, reasons);
12722 genlmsg_end(msg, hdr);
12724 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12725 NL80211_MCGRP_MLME, gfp);
12731 EXPORT_SYMBOL(cfg80211_report_wowlan_wakeup);
12734 void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
12735 enum nl80211_tdls_operation oper,
12736 u16 reason_code, gfp_t gfp)
12738 struct wireless_dev *wdev = dev->ieee80211_ptr;
12739 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
12740 struct sk_buff *msg;
12743 trace_cfg80211_tdls_oper_request(wdev->wiphy, dev, peer, oper,
12746 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12750 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_TDLS_OPER);
12756 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12757 nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex) ||
12758 nla_put_u8(msg, NL80211_ATTR_TDLS_OPERATION, oper) ||
12759 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, peer) ||
12760 (reason_code > 0 &&
12761 nla_put_u16(msg, NL80211_ATTR_REASON_CODE, reason_code)))
12762 goto nla_put_failure;
12764 genlmsg_end(msg, hdr);
12766 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12767 NL80211_MCGRP_MLME, gfp);
12771 genlmsg_cancel(msg, hdr);
12774 EXPORT_SYMBOL(cfg80211_tdls_oper_request);
12776 static int nl80211_netlink_notify(struct notifier_block * nb,
12777 unsigned long state,
12780 struct netlink_notify *notify = _notify;
12781 struct cfg80211_registered_device *rdev;
12782 struct wireless_dev *wdev;
12783 struct cfg80211_beacon_registration *reg, *tmp;
12785 if (state != NETLINK_URELEASE)
12786 return NOTIFY_DONE;
12790 list_for_each_entry_rcu(rdev, &cfg80211_rdev_list, list) {
12791 bool schedule_destroy_work = false;
12792 bool schedule_scan_stop = false;
12793 struct cfg80211_sched_scan_request *sched_scan_req =
12794 rcu_dereference(rdev->sched_scan_req);
12796 if (sched_scan_req && notify->portid &&
12797 sched_scan_req->owner_nlportid == notify->portid)
12798 schedule_scan_stop = true;
12800 list_for_each_entry_rcu(wdev, &rdev->wdev_list, list) {
12801 cfg80211_mlme_unregister_socket(wdev, notify->portid);
12803 if (wdev->owner_nlportid == notify->portid)
12804 schedule_destroy_work = true;
12807 spin_lock_bh(&rdev->beacon_registrations_lock);
12808 list_for_each_entry_safe(reg, tmp, &rdev->beacon_registrations,
12810 if (reg->nlportid == notify->portid) {
12811 list_del(®->list);
12816 spin_unlock_bh(&rdev->beacon_registrations_lock);
12818 if (schedule_destroy_work) {
12819 struct cfg80211_iface_destroy *destroy;
12821 destroy = kzalloc(sizeof(*destroy), GFP_ATOMIC);
12823 destroy->nlportid = notify->portid;
12824 spin_lock(&rdev->destroy_list_lock);
12825 list_add(&destroy->list, &rdev->destroy_list);
12826 spin_unlock(&rdev->destroy_list_lock);
12827 schedule_work(&rdev->destroy_work);
12829 } else if (schedule_scan_stop) {
12830 sched_scan_req->owner_nlportid = 0;
12832 if (rdev->ops->sched_scan_stop &&
12833 rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_SCHED_SCAN)
12834 schedule_work(&rdev->sched_scan_stop_wk);
12841 * It is possible that the user space process that is controlling the
12842 * indoor setting disappeared, so notify the regulatory core.
12844 regulatory_netlink_notify(notify->portid);
12848 static struct notifier_block nl80211_netlink_notifier = {
12849 .notifier_call = nl80211_netlink_notify,
12852 void cfg80211_ft_event(struct net_device *netdev,
12853 struct cfg80211_ft_event_params *ft_event)
12855 struct wiphy *wiphy = netdev->ieee80211_ptr->wiphy;
12856 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12857 struct sk_buff *msg;
12860 trace_cfg80211_ft_event(wiphy, netdev, ft_event);
12862 if (!ft_event->target_ap)
12865 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12869 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_FT_EVENT);
12873 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12874 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) ||
12875 nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, ft_event->target_ap))
12878 if (ft_event->ies &&
12879 nla_put(msg, NL80211_ATTR_IE, ft_event->ies_len, ft_event->ies))
12881 if (ft_event->ric_ies &&
12882 nla_put(msg, NL80211_ATTR_IE_RIC, ft_event->ric_ies_len,
12883 ft_event->ric_ies))
12886 genlmsg_end(msg, hdr);
12888 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
12889 NL80211_MCGRP_MLME, GFP_KERNEL);
12894 EXPORT_SYMBOL(cfg80211_ft_event);
12896 void cfg80211_crit_proto_stopped(struct wireless_dev *wdev, gfp_t gfp)
12898 struct cfg80211_registered_device *rdev;
12899 struct sk_buff *msg;
12903 rdev = wiphy_to_rdev(wdev->wiphy);
12904 if (!rdev->crit_proto_nlportid)
12907 nlportid = rdev->crit_proto_nlportid;
12908 rdev->crit_proto_nlportid = 0;
12910 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
12914 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_CRIT_PROTOCOL_STOP);
12916 goto nla_put_failure;
12918 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12919 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12920 goto nla_put_failure;
12922 genlmsg_end(msg, hdr);
12924 genlmsg_unicast(wiphy_net(&rdev->wiphy), msg, nlportid);
12929 genlmsg_cancel(msg, hdr);
12933 EXPORT_SYMBOL(cfg80211_crit_proto_stopped);
12935 void nl80211_send_ap_stopped(struct wireless_dev *wdev)
12937 struct wiphy *wiphy = wdev->wiphy;
12938 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
12939 struct sk_buff *msg;
12942 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
12946 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_STOP_AP);
12950 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) ||
12951 nla_put_u32(msg, NL80211_ATTR_IFINDEX, wdev->netdev->ifindex) ||
12952 nla_put_u64(msg, NL80211_ATTR_WDEV, wdev_id(wdev)))
12955 genlmsg_end(msg, hdr);
12957 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(wiphy), msg, 0,
12958 NL80211_MCGRP_MLME, GFP_KERNEL);
12964 /* initialisation/exit functions */
12966 int nl80211_init(void)
12970 err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
12975 err = netlink_register_notifier(&nl80211_netlink_notifier);
12981 genl_unregister_family(&nl80211_fam);
12985 void nl80211_exit(void)
12987 netlink_unregister_notifier(&nl80211_netlink_notifier);
12988 genl_unregister_family(&nl80211_fam);